annotate mercurial/wireprotoframing.py @ 48663:bf424fe4f814

lfs: take lock before writing requirements With `share-safe`, we will also write file in the store, so we take the store lock before writing requirements. Differential Revision: https://phab.mercurial-scm.org/D11991
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Fri, 07 Jan 2022 17:33:27 +0100
parents 89a2afe31e82
children 6000f5b25c9b
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1 # wireprotoframing.py - unified framing protocol for wire protocol
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2 #
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3 # Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 # This file contains functionality to support the unified frame-based wire
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9 # protocol. For details about the protocol, see
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10 # `hg help internals.wireprotocol`.
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11
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12 from __future__ import absolute_import
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13
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14 import collections
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15 import struct
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16
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17 from .i18n import _
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18 from .pycompat import getattr
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19 from .thirdparty import attr
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20 from . import (
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21 encoding,
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22 error,
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23 pycompat,
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24 util,
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25 wireprototypes,
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26 )
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27 from .utils import (
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28 cborutil,
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29 stringutil,
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30 )
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31
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32 FRAME_HEADER_SIZE = 8
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33 DEFAULT_MAX_FRAME_SIZE = 32768
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34
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35 STREAM_FLAG_BEGIN_STREAM = 0x01
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36 STREAM_FLAG_END_STREAM = 0x02
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37 STREAM_FLAG_ENCODING_APPLIED = 0x04
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38
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39 STREAM_FLAGS = {
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40 b'stream-begin': STREAM_FLAG_BEGIN_STREAM,
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41 b'stream-end': STREAM_FLAG_END_STREAM,
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42 b'encoded': STREAM_FLAG_ENCODING_APPLIED,
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43 }
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44
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45 FRAME_TYPE_COMMAND_REQUEST = 0x01
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46 FRAME_TYPE_COMMAND_DATA = 0x02
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47 FRAME_TYPE_COMMAND_RESPONSE = 0x03
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48 FRAME_TYPE_ERROR_RESPONSE = 0x05
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49 FRAME_TYPE_TEXT_OUTPUT = 0x06
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50 FRAME_TYPE_PROGRESS = 0x07
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51 FRAME_TYPE_SENDER_PROTOCOL_SETTINGS = 0x08
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52 FRAME_TYPE_STREAM_SETTINGS = 0x09
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53
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54 FRAME_TYPES = {
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55 b'command-request': FRAME_TYPE_COMMAND_REQUEST,
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56 b'command-data': FRAME_TYPE_COMMAND_DATA,
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57 b'command-response': FRAME_TYPE_COMMAND_RESPONSE,
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58 b'error-response': FRAME_TYPE_ERROR_RESPONSE,
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59 b'text-output': FRAME_TYPE_TEXT_OUTPUT,
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60 b'progress': FRAME_TYPE_PROGRESS,
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61 b'sender-protocol-settings': FRAME_TYPE_SENDER_PROTOCOL_SETTINGS,
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62 b'stream-settings': FRAME_TYPE_STREAM_SETTINGS,
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63 }
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64
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65 FLAG_COMMAND_REQUEST_NEW = 0x01
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66 FLAG_COMMAND_REQUEST_CONTINUATION = 0x02
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67 FLAG_COMMAND_REQUEST_MORE_FRAMES = 0x04
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68 FLAG_COMMAND_REQUEST_EXPECT_DATA = 0x08
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69
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70 FLAGS_COMMAND_REQUEST = {
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71 b'new': FLAG_COMMAND_REQUEST_NEW,
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72 b'continuation': FLAG_COMMAND_REQUEST_CONTINUATION,
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73 b'more': FLAG_COMMAND_REQUEST_MORE_FRAMES,
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74 b'have-data': FLAG_COMMAND_REQUEST_EXPECT_DATA,
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75 }
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76
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77 FLAG_COMMAND_DATA_CONTINUATION = 0x01
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78 FLAG_COMMAND_DATA_EOS = 0x02
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79
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80 FLAGS_COMMAND_DATA = {
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81 b'continuation': FLAG_COMMAND_DATA_CONTINUATION,
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82 b'eos': FLAG_COMMAND_DATA_EOS,
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83 }
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84
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85 FLAG_COMMAND_RESPONSE_CONTINUATION = 0x01
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86 FLAG_COMMAND_RESPONSE_EOS = 0x02
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87
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88 FLAGS_COMMAND_RESPONSE = {
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89 b'continuation': FLAG_COMMAND_RESPONSE_CONTINUATION,
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90 b'eos': FLAG_COMMAND_RESPONSE_EOS,
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91 }
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92
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93 FLAG_SENDER_PROTOCOL_SETTINGS_CONTINUATION = 0x01
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94 FLAG_SENDER_PROTOCOL_SETTINGS_EOS = 0x02
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95
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96 FLAGS_SENDER_PROTOCOL_SETTINGS = {
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97 b'continuation': FLAG_SENDER_PROTOCOL_SETTINGS_CONTINUATION,
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98 b'eos': FLAG_SENDER_PROTOCOL_SETTINGS_EOS,
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99 }
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100
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101 FLAG_STREAM_ENCODING_SETTINGS_CONTINUATION = 0x01
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102 FLAG_STREAM_ENCODING_SETTINGS_EOS = 0x02
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103
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104 FLAGS_STREAM_ENCODING_SETTINGS = {
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105 b'continuation': FLAG_STREAM_ENCODING_SETTINGS_CONTINUATION,
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106 b'eos': FLAG_STREAM_ENCODING_SETTINGS_EOS,
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107 }
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108
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109 # Maps frame types to their available flags.
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110 FRAME_TYPE_FLAGS = {
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111 FRAME_TYPE_COMMAND_REQUEST: FLAGS_COMMAND_REQUEST,
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112 FRAME_TYPE_COMMAND_DATA: FLAGS_COMMAND_DATA,
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113 FRAME_TYPE_COMMAND_RESPONSE: FLAGS_COMMAND_RESPONSE,
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114 FRAME_TYPE_ERROR_RESPONSE: {},
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115 FRAME_TYPE_TEXT_OUTPUT: {},
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116 FRAME_TYPE_PROGRESS: {},
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117 FRAME_TYPE_SENDER_PROTOCOL_SETTINGS: FLAGS_SENDER_PROTOCOL_SETTINGS,
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118 FRAME_TYPE_STREAM_SETTINGS: FLAGS_STREAM_ENCODING_SETTINGS,
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119 }
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120
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121 ARGUMENT_RECORD_HEADER = struct.Struct('<HH')
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122
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123
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124 def humanflags(mapping, value):
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125 """Convert a numeric flags value to a human value, using a mapping table."""
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126 namemap = {v: k for k, v in pycompat.iteritems(mapping)}
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127 flags = []
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128 val = 1
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129 while value >= val:
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130 if value & val:
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131 flags.append(namemap.get(val, b'<unknown 0x%02x>' % val))
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132 val <<= 1
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133
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134 return b'|'.join(flags)
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135
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136
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137 @attr.s(slots=True)
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138 class frameheader(object):
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139 """Represents the data in a frame header."""
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140
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141 length = attr.ib()
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142 requestid = attr.ib()
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143 streamid = attr.ib()
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144 streamflags = attr.ib()
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145 typeid = attr.ib()
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146 flags = attr.ib()
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147
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148
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149 @attr.s(slots=True, repr=False)
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150 class frame(object):
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151 """Represents a parsed frame."""
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152
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153 requestid = attr.ib()
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154 streamid = attr.ib()
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155 streamflags = attr.ib()
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156 typeid = attr.ib()
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157 flags = attr.ib()
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158 payload = attr.ib()
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159
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160 @encoding.strmethod
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161 def __repr__(self):
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162 typename = b'<unknown 0x%02x>' % self.typeid
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163 for name, value in pycompat.iteritems(FRAME_TYPES):
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164 if value == self.typeid:
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165 typename = name
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166 break
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167
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168 return (
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169 b'frame(size=%d; request=%d; stream=%d; streamflags=%s; '
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170 b'type=%s; flags=%s)'
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171 % (
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172 len(self.payload),
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173 self.requestid,
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174 self.streamid,
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175 humanflags(STREAM_FLAGS, self.streamflags),
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176 typename,
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177 humanflags(FRAME_TYPE_FLAGS.get(self.typeid, {}), self.flags),
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178 )
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179 )
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180
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181
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182 def makeframe(requestid, streamid, streamflags, typeid, flags, payload):
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183 """Assemble a frame into a byte array."""
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184 # TODO assert size of payload.
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185 frame = bytearray(FRAME_HEADER_SIZE + len(payload))
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186
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187 # 24 bits length
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188 # 16 bits request id
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189 # 8 bits stream id
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190 # 8 bits stream flags
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191 # 4 bits type
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192 # 4 bits flags
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193
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194 l = struct.pack('<I', len(payload))
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195 frame[0:3] = l[0:3]
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196 struct.pack_into('<HBB', frame, 3, requestid, streamid, streamflags)
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197 frame[7] = (typeid << 4) | flags
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198 frame[8:] = payload
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199
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200 return frame
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201
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202
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203 def makeframefromhumanstring(s):
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204 """Create a frame from a human readable string
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205
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206 Strings have the form:
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207
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208 <request-id> <stream-id> <stream-flags> <type> <flags> <payload>
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209
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210 This can be used by user-facing applications and tests for creating
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211 frames easily without having to type out a bunch of constants.
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212
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213 Request ID and stream IDs are integers.
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214
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215 Stream flags, frame type, and flags can be specified by integer or
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216 named constant.
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217
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218 Flags can be delimited by `|` to bitwise OR them together.
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219
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220 If the payload begins with ``cbor:``, the following string will be
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221 evaluated as Python literal and the resulting object will be fed into
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222 a CBOR encoder. Otherwise, the payload is interpreted as a Python
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223 byte string literal.
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224 """
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225 fields = s.split(b' ', 5)
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226 requestid, streamid, streamflags, frametype, frameflags, payload = fields
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227
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228 requestid = int(requestid)
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229 streamid = int(streamid)
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230
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231 finalstreamflags = 0
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232 for flag in streamflags.split(b'|'):
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233 if flag in STREAM_FLAGS:
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234 finalstreamflags |= STREAM_FLAGS[flag]
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235 else:
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236 finalstreamflags |= int(flag)
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237
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238 if frametype in FRAME_TYPES:
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239 frametype = FRAME_TYPES[frametype]
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240 else:
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241 frametype = int(frametype)
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242
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243 finalflags = 0
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244 validflags = FRAME_TYPE_FLAGS[frametype]
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245 for flag in frameflags.split(b'|'):
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246 if flag in validflags:
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247 finalflags |= validflags[flag]
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248 else:
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249 finalflags |= int(flag)
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250
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251 if payload.startswith(b'cbor:'):
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252 payload = b''.join(
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253 cborutil.streamencode(stringutil.evalpythonliteral(payload[5:]))
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254 )
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255
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256 else:
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257 payload = stringutil.unescapestr(payload)
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258
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259 return makeframe(
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260 requestid=requestid,
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261 streamid=streamid,
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262 streamflags=finalstreamflags,
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263 typeid=frametype,
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264 flags=finalflags,
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265 payload=payload,
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266 )
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267
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268
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269 def parseheader(data):
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270 """Parse a unified framing protocol frame header from a buffer.
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271
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272 The header is expected to be in the buffer at offset 0 and the
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273 buffer is expected to be large enough to hold a full header.
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274 """
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275 # 24 bits payload length (little endian)
37288
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diff changeset
276 # 16 bits request ID
9bfcbe4f4745 wireproto: add streams to frame-based protocol
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parents: 37285
diff changeset
277 # 8 bits stream ID
9bfcbe4f4745 wireproto: add streams to frame-based protocol
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parents: 37285
diff changeset
278 # 8 bits stream flags
37052
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diff changeset
279 # 4 bits frame type
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Gregory Szorc <gregory.szorc@gmail.com>
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diff changeset
280 # 4 bits frame flags
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
281 # ... payload
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
282 framelength = data[0] + 256 * data[1] + 16384 * data[2]
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
283 requestid, streamid, streamflags = struct.unpack_from('<HBB', data, 3)
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
284 typeflags = data[7]
37052
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parents: 37051
diff changeset
285
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diff changeset
286 frametype = (typeflags & 0xF0) >> 4
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parents: 40328
diff changeset
287 frameflags = typeflags & 0x0F
37052
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parents: 37051
diff changeset
288
43076
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diff changeset
289 return frameheader(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
290 framelength, requestid, streamid, streamflags, frametype, frameflags
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
291 )
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parents: 40328
diff changeset
292
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
293
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
294 def readframe(fh):
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
295 """Read a unified framing protocol frame from a file object.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
296
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
297 Returns a 3-tuple of (type, flags, payload) for the decoded frame or
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
298 None if no frame is available. May raise if a malformed frame is
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
299 seen.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
300 """
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
301 header = bytearray(FRAME_HEADER_SIZE)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
302
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
303 readcount = fh.readinto(header)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
304
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
305 if readcount == 0:
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
306 return None
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
307
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
308 if readcount != FRAME_HEADER_SIZE:
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
309 raise error.Abort(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
310 _(b'received incomplete frame: got %d bytes: %s')
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
311 % (readcount, header)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
312 )
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
313
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
314 h = parseheader(header)
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
315
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
316 payload = fh.read(h.length)
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
317 if len(payload) != h.length:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
318 raise error.Abort(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
319 _(b'frame length error: expected %d; got %d')
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
320 % (h.length, len(payload))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
321 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
322
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
323 return frame(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
324 h.requestid, h.streamid, h.streamflags, h.typeid, h.flags, payload
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
325 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
326
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
327
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
328 def createcommandframes(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
329 stream,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
330 requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
331 cmd,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
332 args,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
333 datafh=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
334 maxframesize=DEFAULT_MAX_FRAME_SIZE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
335 redirect=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
336 ):
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
337 """Create frames necessary to transmit a request to run a command.
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
338
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
339 This is a generator of bytearrays. Each item represents a frame
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
340 ready to be sent over the wire to a peer.
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
341 """
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
342 data = {b'name': cmd}
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
343 if args:
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
344 data[b'args'] = args
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
345
40024
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40020
diff changeset
346 if redirect:
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40020
diff changeset
347 data[b'redirect'] = redirect
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40020
diff changeset
348
39446
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
349 data = b''.join(cborutil.streamencode(data))
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
350
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
351 offset = 0
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
352
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
353 while True:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
354 flags = 0
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
355
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
356 # Must set new or continuation flag.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
357 if not offset:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
358 flags |= FLAG_COMMAND_REQUEST_NEW
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
359 else:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
360 flags |= FLAG_COMMAND_REQUEST_CONTINUATION
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
361
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
362 # Data frames is set on all frames.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
363 if datafh:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
364 flags |= FLAG_COMMAND_REQUEST_EXPECT_DATA
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
365
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
366 payload = data[offset : offset + maxframesize]
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
367 offset += len(payload)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
368
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
369 if len(payload) == maxframesize and offset < len(data):
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
370 flags |= FLAG_COMMAND_REQUEST_MORE_FRAMES
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
371
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
372 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
373 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
374 typeid=FRAME_TYPE_COMMAND_REQUEST,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
375 flags=flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
376 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
377 )
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
378
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
379 if not (flags & FLAG_COMMAND_REQUEST_MORE_FRAMES):
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
380 break
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
381
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
382 if datafh:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
383 while True:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
384 data = datafh.read(DEFAULT_MAX_FRAME_SIZE)
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
385
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
386 done = False
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
387 if len(data) == DEFAULT_MAX_FRAME_SIZE:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
388 flags = FLAG_COMMAND_DATA_CONTINUATION
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
389 else:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
390 flags = FLAG_COMMAND_DATA_EOS
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
391 assert datafh.read(1) == b''
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
392 done = True
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
393
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
394 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
395 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
396 typeid=FRAME_TYPE_COMMAND_DATA,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
397 flags=flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
398 payload=data,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
399 )
37051
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
400
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
401 if done:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
402 break
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
403
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
404
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
405 def createcommandresponseokframe(stream, requestid):
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
406 overall = b''.join(cborutil.streamencode({b'status': b'ok'}))
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
407
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
408 if stream.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
409 overall = stream.encode(overall)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
410 encoded = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
411
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
412 if not overall:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
413 return None
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
414 else:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
415 encoded = False
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
416
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
417 return stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
418 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
419 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
420 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
421 payload=overall,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
422 encoded=encoded,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
423 )
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
424
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
425
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
426 def createcommandresponseeosframes(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
427 stream, requestid, maxframesize=DEFAULT_MAX_FRAME_SIZE
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
428 ):
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
429 """Create an empty payload frame representing command end-of-stream."""
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
430 payload = stream.flush()
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
431
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
432 offset = 0
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
433 while True:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
434 chunk = payload[offset : offset + maxframesize]
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
435 offset += len(chunk)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
436
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
437 done = offset == len(payload)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
438
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
439 if done:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
440 flags = FLAG_COMMAND_RESPONSE_EOS
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
441 else:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
442 flags = FLAG_COMMAND_RESPONSE_CONTINUATION
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
443
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
444 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
445 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
446 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
447 flags=flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
448 payload=chunk,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
449 encoded=payload != b'',
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
450 )
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
451
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
452 if done:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
453 break
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
454
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
455
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
456 def createalternatelocationresponseframe(stream, requestid, location):
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
457 data = {
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
458 b'status': b'redirect',
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
459 b'location': {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
460 b'url': location.url,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
461 b'mediatype': location.mediatype,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
462 },
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
463 }
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
464
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
465 for a in (
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
466 'size',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
467 'fullhashes',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
468 'fullhashseed',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
469 'serverdercerts',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
470 'servercadercerts',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
471 ):
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
472 value = getattr(location, a)
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
473 if value is not None:
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
474 data[b'location'][pycompat.bytestr(a)] = value
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
475
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
476 payload = b''.join(cborutil.streamencode(data))
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
477
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
478 if stream.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
479 payload = stream.encode(payload)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
480 encoded = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
481 else:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
482 encoded = False
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
483
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
484 return stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
485 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
486 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
487 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
488 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
489 encoded=encoded,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
490 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
491
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
492
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
493 def createcommanderrorresponse(stream, requestid, message, args=None):
39486
43d92d68ac88 wireprotov2peer: properly format errors
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39446
diff changeset
494 # TODO should this be using a list of {'msg': ..., 'args': {}} so atom
43d92d68ac88 wireprotov2peer: properly format errors
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39446
diff changeset
495 # formatting works consistently?
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
496 m = {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
497 b'status': b'error',
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
498 b'error': {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
499 b'message': message,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
500 },
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
501 }
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
502
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
503 if args:
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
504 m[b'error'][b'args'] = args
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
505
39446
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
506 overall = b''.join(cborutil.streamencode(m))
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
507
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
508 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
509 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
510 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
511 flags=FLAG_COMMAND_RESPONSE_EOS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
512 payload=overall,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
513 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
514
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
515
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
516 def createerrorframe(stream, requestid, msg, errtype):
37055
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
517 # TODO properly handle frame size limits.
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
518 assert len(msg) <= DEFAULT_MAX_FRAME_SIZE
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
519
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
520 payload = b''.join(
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
521 cborutil.streamencode(
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
522 {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
523 b'type': errtype,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
524 b'message': [{b'msg': msg}],
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
525 }
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
526 )
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
527 )
37055
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
528
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
529 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
530 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
531 typeid=FRAME_TYPE_ERROR_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
532 flags=0,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
533 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
534 )
37055
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
535
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
536
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
537 def createtextoutputframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
538 stream, requestid, atoms, maxframesize=DEFAULT_MAX_FRAME_SIZE
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
539 ):
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
540 """Create a text output frame to render text to people.
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
541
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
542 ``atoms`` is a 3-tuple of (formatting string, args, labels).
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
543
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
544 The formatting string contains ``%s`` tokens to be replaced by the
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
545 corresponding indexed entry in ``args``. ``labels`` is an iterable of
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
546 formatters to be applied at rendering time. In terms of the ``ui``
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
547 class, each atom corresponds to a ``ui.write()``.
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
548 """
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
549 atomdicts = []
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
550
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
551 for (formatting, args, labels) in atoms:
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
552 # TODO look for localstr, other types here?
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
553
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
554 if not isinstance(formatting, bytes):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
555 raise ValueError(b'must use bytes formatting strings')
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
556 for arg in args:
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
557 if not isinstance(arg, bytes):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
558 raise ValueError(b'must use bytes for arguments')
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
559 for label in labels:
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
560 if not isinstance(label, bytes):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
561 raise ValueError(b'must use bytes for labels')
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
562
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
563 # Formatting string must be ASCII.
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
564 formatting = formatting.decode('ascii', 'replace').encode('ascii')
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
565
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
566 # Arguments must be UTF-8.
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
567 args = [a.decode('utf-8', 'replace').encode('utf-8') for a in args]
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
568
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
569 # Labels must be ASCII.
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
570 labels = [l.decode('ascii', 'strict').encode('ascii') for l in labels]
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
571
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
572 atom = {b'msg': formatting}
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
573 if args:
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
574 atom[b'args'] = args
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
575 if labels:
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
576 atom[b'labels'] = labels
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
577
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
578 atomdicts.append(atom)
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
579
39446
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
580 payload = b''.join(cborutil.streamencode(atomdicts))
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
581
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
582 if len(payload) > maxframesize:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
583 raise ValueError(b'cannot encode data in a single frame')
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
584
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
585 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
586 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
587 typeid=FRAME_TYPE_TEXT_OUTPUT,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
588 flags=0,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
589 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
590 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
591
37285
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
592
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
593 class bufferingcommandresponseemitter(object):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
594 """Helper object to emit command response frames intelligently.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
595
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
596 Raw command response data is likely emitted in chunks much smaller
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
597 than what can fit in a single frame. This class exists to buffer
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
598 chunks until enough data is available to fit in a single frame.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
599
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
600 TODO we'll need something like this when compression is supported.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
601 So it might make sense to implement this functionality at the stream
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
602 level.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
603 """
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
604
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
605 def __init__(self, stream, requestid, maxframesize=DEFAULT_MAX_FRAME_SIZE):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
606 self._stream = stream
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
607 self._requestid = requestid
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
608 self._maxsize = maxframesize
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
609 self._chunks = []
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
610 self._chunkssize = 0
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
611
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
612 def send(self, data):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
613 """Send new data for emission.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
614
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
615 Is a generator of new frames that were derived from the new input.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
616
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
617 If the special input ``None`` is received, flushes all buffered
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
618 data to frames.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
619 """
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
620
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
621 if data is None:
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
622 for frame in self._flush():
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
623 yield frame
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
624 return
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
625
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
626 data = self._stream.encode(data)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
627
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
628 # There is a ton of potential to do more complicated things here.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
629 # Our immediate goal is to coalesce small chunks into big frames,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
630 # not achieve the fewest number of frames possible. So we go with
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
631 # a simple implementation:
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
632 #
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
633 # * If a chunk is too large for a frame, we flush and emit frames
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
634 # for the new chunk.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
635 # * If a chunk can be buffered without total buffered size limits
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
636 # being exceeded, we do that.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
637 # * If a chunk causes us to go over our buffering limit, we flush
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
638 # and then buffer the new chunk.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
639
40136
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
640 if not data:
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
641 return
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
642
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
643 if len(data) > self._maxsize:
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
644 for frame in self._flush():
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
645 yield frame
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
646
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
647 # Now emit frames for the big chunk.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
648 offset = 0
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
649 while True:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
650 chunk = data[offset : offset + self._maxsize]
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
651 offset += len(chunk)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
652
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
653 yield self._stream.makeframe(
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
654 self._requestid,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
655 typeid=FRAME_TYPE_COMMAND_RESPONSE,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
656 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
657 payload=chunk,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
658 encoded=True,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
659 )
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
660
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
661 if offset == len(data):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
662 return
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
663
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
664 # If we don't have enough to constitute a full frame, buffer and
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
665 # return.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
666 if len(data) + self._chunkssize < self._maxsize:
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
667 self._chunks.append(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
668 self._chunkssize += len(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
669 return
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
670
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
671 # Else flush what we have and buffer the new chunk. We could do
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
672 # something more intelligent here, like break the chunk. Let's
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
673 # keep things simple for now.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
674 for frame in self._flush():
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
675 yield frame
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
676
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
677 self._chunks.append(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
678 self._chunkssize = len(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
679
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
680 def _flush(self):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
681 payload = b''.join(self._chunks)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
682 assert len(payload) <= self._maxsize
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
683
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
684 self._chunks[:] = []
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
685 self._chunkssize = 0
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
686
40136
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
687 if not payload:
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
688 return
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
689
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
690 yield self._stream.makeframe(
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
691 self._requestid,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
692 typeid=FRAME_TYPE_COMMAND_RESPONSE,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
693 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
694 payload=payload,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
695 encoded=True,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
696 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
697
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
698
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
699 # TODO consider defining encoders/decoders using the util.compressionengine
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
700 # mechanism.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
701
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
702
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
703 class identityencoder(object):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
704 """Encoder for the "identity" stream encoding profile."""
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
705
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
706 def __init__(self, ui):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
707 pass
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
708
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
709 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
710 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
711
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
712 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
713 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
714
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
715 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
716 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
717
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
718
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
719 class identitydecoder(object):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
720 """Decoder for the "identity" stream encoding profile."""
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
721
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
722 def __init__(self, ui, extraobjs):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
723 if extraobjs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
724 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
725 _(b'identity decoder received unexpected additional values')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
726 )
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
727
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
728 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
729 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
730
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
731
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
732 class zlibencoder(object):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
733 def __init__(self, ui):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
734 import zlib
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
735
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
736 self._zlib = zlib
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
737 self._compressor = zlib.compressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
738
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
739 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
740 return self._compressor.compress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
741
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
742 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
743 # Z_SYNC_FLUSH doesn't reset compression context, which is
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
744 # what we want.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
745 return self._compressor.flush(self._zlib.Z_SYNC_FLUSH)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
746
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
747 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
748 res = self._compressor.flush(self._zlib.Z_FINISH)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
749 self._compressor = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
750 return res
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
751
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
752
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
753 class zlibdecoder(object):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
754 def __init__(self, ui, extraobjs):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
755 import zlib
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
756
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
757 if extraobjs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
758 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
759 _(b'zlib decoder received unexpected additional values')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
760 )
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
761
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
762 self._decompressor = zlib.decompressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
763
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
764 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
765 # Python 2's zlib module doesn't use the buffer protocol and can't
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
766 # handle all bytes-like types.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
767 if not pycompat.ispy3 and isinstance(data, bytearray):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
768 data = bytes(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
769
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
770 return self._decompressor.decompress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
771
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
772
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
773 class zstdbaseencoder(object):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
774 def __init__(self, level):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
775 from . import zstd
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
776
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
777 self._zstd = zstd
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
778 cctx = zstd.ZstdCompressor(level=level)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
779 self._compressor = cctx.compressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
780
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
781 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
782 return self._compressor.compress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
783
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
784 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
785 # COMPRESSOBJ_FLUSH_BLOCK flushes all data previously fed into the
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
786 # compressor and allows a decompressor to access all encoded data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
787 # up to this point.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
788 return self._compressor.flush(self._zstd.COMPRESSOBJ_FLUSH_BLOCK)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
789
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
790 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
791 res = self._compressor.flush(self._zstd.COMPRESSOBJ_FLUSH_FINISH)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
792 self._compressor = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
793 return res
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
794
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
795
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
796 class zstd8mbencoder(zstdbaseencoder):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
797 def __init__(self, ui):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
798 super(zstd8mbencoder, self).__init__(3)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
799
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
800
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
801 class zstdbasedecoder(object):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
802 def __init__(self, maxwindowsize):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
803 from . import zstd
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
804
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
805 dctx = zstd.ZstdDecompressor(max_window_size=maxwindowsize)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
806 self._decompressor = dctx.decompressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
807
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
808 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
809 return self._decompressor.decompress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
810
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
811
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
812 class zstd8mbdecoder(zstdbasedecoder):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
813 def __init__(self, ui, extraobjs):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
814 if extraobjs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
815 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
816 _(b'zstd8mb decoder received unexpected additional values')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
817 )
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
818
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
819 super(zstd8mbdecoder, self).__init__(maxwindowsize=8 * 1048576)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
820
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
821
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
822 # We lazily populate this to avoid excessive module imports when importing
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
823 # this module.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
824 STREAM_ENCODERS = {}
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
825 STREAM_ENCODERS_ORDER = []
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
826
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
827
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
828 def populatestreamencoders():
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
829 if STREAM_ENCODERS:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
830 return
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
831
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
832 try:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
833 from . import zstd
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
834
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
835 zstd.__version__
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
836 except ImportError:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
837 zstd = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
838
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
839 # zstandard is fastest and is preferred.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
840 if zstd:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
841 STREAM_ENCODERS[b'zstd-8mb'] = (zstd8mbencoder, zstd8mbdecoder)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
842 STREAM_ENCODERS_ORDER.append(b'zstd-8mb')
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
843
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
844 STREAM_ENCODERS[b'zlib'] = (zlibencoder, zlibdecoder)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
845 STREAM_ENCODERS_ORDER.append(b'zlib')
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
846
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
847 STREAM_ENCODERS[b'identity'] = (identityencoder, identitydecoder)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
848 STREAM_ENCODERS_ORDER.append(b'identity')
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
849
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
850
37285
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
851 class stream(object):
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
852 """Represents a logical unidirectional series of frames."""
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
853
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
854 def __init__(self, streamid, active=False):
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
855 self.streamid = streamid
37655
b9502b5f2066 wireprotoframing: use value passed into function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37544
diff changeset
856 self._active = active
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
857
37285
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
858 def makeframe(self, requestid, typeid, flags, payload):
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
859 """Create a frame to be sent out over this stream.
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
860
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
861 Only returns the frame instance. Does not actually send it.
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37084
diff changeset
862 """
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
863 streamflags = 0
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
864 if not self._active:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
865 streamflags |= STREAM_FLAG_BEGIN_STREAM
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
866 self._active = True
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
867
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
868 return makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
869 requestid, self.streamid, streamflags, typeid, flags, payload
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
870 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
871
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
872
40130
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
873 class inputstream(stream):
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
874 """Represents a stream used for receiving data."""
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
875
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
876 def __init__(self, streamid, active=False):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
877 super(inputstream, self).__init__(streamid, active=active)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
878 self._decoder = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
879
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
880 def setdecoder(self, ui, name, extraobjs):
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
881 """Set the decoder for this stream.
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
882
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
883 Receives the stream profile name and any additional CBOR objects
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
884 decoded from the stream encoding settings frame payloads.
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
885 """
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
886 if name not in STREAM_ENCODERS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
887 raise error.Abort(_(b'unknown stream decoder: %s') % name)
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
888
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
889 self._decoder = STREAM_ENCODERS[name][1](ui, extraobjs)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
890
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
891 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
892 # Default is identity decoder. We don't bother instantiating one
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
893 # because it is trivial.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
894 if not self._decoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
895 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
896
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
897 return self._decoder.decode(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
898
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
899 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
900 if not self._decoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
901 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
902
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
903 return self._decoder.flush()
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
904
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
905
40130
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
906 class outputstream(stream):
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
907 """Represents a stream used for sending data."""
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
908
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
909 def __init__(self, streamid, active=False):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
910 super(outputstream, self).__init__(streamid, active=active)
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
911 self.streamsettingssent = False
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
912 self._encoder = None
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
913 self._encodername = None
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
914
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
915 def setencoder(self, ui, name):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
916 """Set the encoder for this stream.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
917
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
918 Receives the stream profile name.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
919 """
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
920 if name not in STREAM_ENCODERS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
921 raise error.Abort(_(b'unknown stream encoder: %s') % name)
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
922
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
923 self._encoder = STREAM_ENCODERS[name][0](ui)
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
924 self._encodername = name
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
925
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
926 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
927 if not self._encoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
928 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
929
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
930 return self._encoder.encode(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
931
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
932 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
933 if not self._encoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
934 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
935
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
936 return self._encoder.flush()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
937
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
938 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
939 if not self._encoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
940 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
941
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
942 self._encoder.finish()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
943
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
944 def makeframe(self, requestid, typeid, flags, payload, encoded=False):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
945 """Create a frame to be sent out over this stream.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
946
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
947 Only returns the frame instance. Does not actually send it.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
948 """
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
949 streamflags = 0
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
950 if not self._active:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
951 streamflags |= STREAM_FLAG_BEGIN_STREAM
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
952 self._active = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
953
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
954 if encoded:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
955 if not self.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
956 raise error.ProgrammingError(
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
957 b'attempting to send encoded frame without sending stream '
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
958 b'settings'
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
959 )
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
960
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
961 streamflags |= STREAM_FLAG_ENCODING_APPLIED
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
962
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
963 if (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
964 typeid == FRAME_TYPE_STREAM_SETTINGS
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
965 and flags & FLAG_STREAM_ENCODING_SETTINGS_EOS
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
966 ):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
967 self.streamsettingssent = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
968
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
969 return makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
970 requestid, self.streamid, streamflags, typeid, flags, payload
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
971 )
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
972
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
973 def makestreamsettingsframe(self, requestid):
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
974 """Create a stream settings frame for this stream.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
975
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
976 Returns frame data or None if no stream settings frame is needed or has
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
977 already been sent.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
978 """
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
979 if not self._encoder or self.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
980 return None
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
981
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
982 payload = b''.join(cborutil.streamencode(self._encodername))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
983 return self.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
984 requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
985 FRAME_TYPE_STREAM_SETTINGS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
986 FLAG_STREAM_ENCODING_SETTINGS_EOS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
987 payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
988 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
989
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
990
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
991 def ensureserverstream(stream):
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
992 if stream.streamid % 2:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
993 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
994 b'server should only write to even '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
995 b'numbered streams; %d is not even' % stream.streamid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
996 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
997
37060
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
998
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
999 DEFAULT_PROTOCOL_SETTINGS = {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1000 b'contentencodings': [b'identity'],
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1001 }
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1002
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1003
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1004 class serverreactor(object):
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1005 """Holds state of a server handling frame-based protocol requests.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1006
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1007 This class is the "brain" of the unified frame-based protocol server
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1008 component. While the protocol is stateless from the perspective of
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1009 requests/commands, something needs to track which frames have been
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1010 received, what frames to expect, etc. This class is that thing.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1011
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1012 Instances are modeled as a state machine of sorts. Instances are also
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1013 reactionary to external events. The point of this class is to encapsulate
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1014 the state of the connection and the exchange of frames, not to perform
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1015 work. Instead, callers tell this class when something occurs, like a
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1016 frame arriving. If that activity is worthy of a follow-up action (say
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1017 *run a command*), the return value of that handler will say so.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1018
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1019 I/O and CPU intensive operations are purposefully delegated outside of
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1020 this class.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1021
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1022 Consumers are expected to tell instances when events occur. They do so by
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1023 calling the various ``on*`` methods. These methods return a 2-tuple
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1024 describing any follow-up action(s) to take. The first element is the
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1025 name of an action to perform. The second is a data structure (usually
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1026 a dict) specific to that action that contains more information. e.g.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1027 if the server wants to send frames back to the client, the data structure
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1028 will contain a reference to those frames.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1029
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1030 Valid actions that consumers can be instructed to take are:
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1031
37055
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
1032 sendframes
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
1033 Indicates that frames should be sent to the client. The ``framegen``
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
1034 key contains a generator of frames that should be sent. The server
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
1035 assumes that all frames are sent to the client.
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
1036
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1037 error
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1038 Indicates that an error occurred. Consumer should probably abort.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1039
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1040 runcommand
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1041 Indicates that the consumer should run a wire protocol command. Details
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1042 of the command to run are given in the data structure.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1043
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1044 wantframe
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1045 Indicates that nothing of interest happened and the server is waiting on
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1046 more frames from the client before anything interesting can be done.
37056
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1047
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1048 noop
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1049 Indicates no additional action is required.
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1050
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1051 Known Issues
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1052 ------------
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1053
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1054 There are no limits to the number of partially received commands or their
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1055 size. A malicious client could stream command request data and exhaust the
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1056 server's memory.
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1057
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1058 Partially received commands are not acted upon when end of input is
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1059 reached. Should the server error if it receives a partial request?
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1060 Should the client send a message to abort a partially transmitted request
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1061 to facilitate graceful shutdown?
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1062
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1063 Active requests that haven't been responded to aren't tracked. This means
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1064 that if we receive a command and instruct its dispatch, another command
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1065 with its request ID can come in over the wire and there will be a race
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1066 between who responds to what.
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1067 """
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1068
40129
293835e0fff7 wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1069 def __init__(self, ui, deferoutput=False):
37056
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1070 """Construct a new server reactor.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1071
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1072 ``deferoutput`` can be used to indicate that no output frames should be
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1073 instructed to be sent until input has been exhausted. In this mode,
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1074 events that would normally generate output frames (such as a command
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1075 response being ready) will instead defer instructing the consumer to
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1076 send those frames. This is useful for half-duplex transports where the
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1077 sender cannot receive until all data has been transmitted.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1078 """
40129
293835e0fff7 wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1079 self._ui = ui
37056
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1080 self._deferoutput = deferoutput
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1081 self._state = b'initial'
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1082 self._nextoutgoingstreamid = 2
37056
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1083 self._bufferedframegens = []
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1084 # stream id -> stream instance for all active streams from the client.
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1085 self._incomingstreams = {}
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1086 self._outgoingstreams = {}
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1087 # request id -> dict of commands that are actively being received.
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1088 self._receivingcommands = {}
37063
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1089 # Request IDs that have been received and are actively being processed.
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1090 # Once all output for a request has been sent, it is removed from this
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1091 # set.
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1092 self._activecommands = set()
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1093
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1094 self._protocolsettingsdecoder = None
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1095
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1096 # Sender protocol settings are optional. Set implied default values.
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1097 self._sendersettings = dict(DEFAULT_PROTOCOL_SETTINGS)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1098
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1099 populatestreamencoders()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1100
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1101 def onframerecv(self, frame):
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1102 """Process a frame that has been received off the wire.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1103
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1104 Returns a dict with an ``action`` key that details what action,
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1105 if any, the consumer should take next.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1106 """
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1107 if not frame.streamid % 2:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1108 self._state = b'errored'
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1109 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1110 _(b'received frame with even numbered stream ID: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1111 % frame.streamid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1112 )
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1113
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1114 if frame.streamid not in self._incomingstreams:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1115 if not frame.streamflags & STREAM_FLAG_BEGIN_STREAM:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1116 self._state = b'errored'
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1117 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1118 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1119 b'received frame on unknown inactive stream without '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1120 b'beginning of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1121 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1122 )
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1123
40130
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
1124 self._incomingstreams[frame.streamid] = inputstream(frame.streamid)
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1125
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1126 if frame.streamflags & STREAM_FLAG_ENCODING_APPLIED:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1127 # TODO handle decoding frames
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1128 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1129 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1130 b'support for decoding stream payloads not yet implemented'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1131 )
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1132
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1133 if frame.streamflags & STREAM_FLAG_END_STREAM:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1134 del self._incomingstreams[frame.streamid]
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1135
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1136 handlers = {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1137 b'initial': self._onframeinitial,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1138 b'protocol-settings-receiving': self._onframeprotocolsettings,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1139 b'idle': self._onframeidle,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1140 b'command-receiving': self._onframecommandreceiving,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1141 b'errored': self._onframeerrored,
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1142 }
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1143
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1144 meth = handlers.get(self._state)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1145 if not meth:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1146 raise error.ProgrammingError(b'unhandled state: %s' % self._state)
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1147
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1148 return meth(frame)
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1149
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1150 def oncommandresponsereadyobjects(self, stream, requestid, objs):
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1151 """Signal that objects are ready to be sent to the client.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1152
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1153 ``objs`` is an iterable of objects (typically a generator) that will
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1154 be encoded via CBOR and added to frames, which will be sent to the
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1155 client.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1156 """
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1157 ensureserverstream(stream)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1158
40135
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1159 # A more robust solution would be to check for objs.{next,__next__}.
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1160 if isinstance(objs, list):
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1161 objs = iter(objs)
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1162
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1163 # We need to take care over exception handling. Uncaught exceptions
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1164 # when generating frames could lead to premature end of the frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1165 # stream and the possibility of the server or client process getting
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1166 # in a bad state.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1167 #
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1168 # Keep in mind that if ``objs`` is a generator, advancing it could
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1169 # raise exceptions that originated in e.g. wire protocol command
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1170 # functions. That is why we differentiate between exceptions raised
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1171 # when iterating versus other exceptions that occur.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1172 #
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1173 # In all cases, when the function finishes, the request is fully
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1174 # handled and no new frames for it should be seen.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1175
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1176 def sendframes():
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1177 emitted = False
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1178 alternatelocationsent = False
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
1179 emitter = bufferingcommandresponseemitter(stream, requestid)
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1180 while True:
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1181 try:
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1182 o = next(objs)
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1183 except StopIteration:
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
1184 for frame in emitter.send(None):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
1185 yield frame
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
1186
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1187 if emitted:
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1188 for frame in createcommandresponseeosframes(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1189 stream, requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1190 ):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1191 yield frame
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1192 break
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1193
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1194 except error.WireprotoCommandError as e:
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1195 for frame in createcommanderrorresponse(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1196 stream, requestid, e.message, e.messageargs
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1197 ):
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1198 yield frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1199 break
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1200
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1201 except Exception as e:
39838
bce1c1af7518 py3: cast exception to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39560
diff changeset
1202 for frame in createerrorframe(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1203 stream,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1204 requestid,
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1205 b'%s' % stringutil.forcebytestr(e),
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1206 errtype=b'server',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1207 ):
39838
bce1c1af7518 py3: cast exception to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39560
diff changeset
1208
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1209 yield frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1210
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1211 break
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1212
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1213 try:
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1214 # Alternate location responses can only be the first and
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1215 # only object in the output stream.
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1216 if isinstance(o, wireprototypes.alternatelocationresponse):
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1217 if emitted:
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1218 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1219 b'alternatelocationresponse seen after initial '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1220 b'output object'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1221 )
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1222
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1223 frame = stream.makestreamsettingsframe(requestid)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1224 if frame:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1225 yield frame
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1226
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1227 yield createalternatelocationresponseframe(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1228 stream, requestid, o
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1229 )
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1230
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1231 alternatelocationsent = True
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1232 emitted = True
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1233 continue
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1234
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1235 if alternatelocationsent:
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1236 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1237 b'object follows alternatelocationresponse'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1238 )
40025
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40024
diff changeset
1239
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1240 if not emitted:
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1241 # Frame is optional.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1242 frame = stream.makestreamsettingsframe(requestid)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1243 if frame:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1244 yield frame
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1245
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1246 # May be None if empty frame (due to encoding).
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1247 frame = createcommandresponseokframe(stream, requestid)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1248 if frame:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1249 yield frame
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1250
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1251 emitted = True
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1252
40020
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1253 # Objects emitted by command functions can be serializable
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1254 # data structures or special types.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1255 # TODO consider extracting the content normalization to a
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1256 # standalone function, as it may be useful for e.g. cachers.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1257
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1258 # A pre-encoded object is sent directly to the emitter.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1259 if isinstance(o, wireprototypes.encodedresponse):
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1260 for frame in emitter.send(o.data):
39560
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
1261 yield frame
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39559
diff changeset
1262
40328
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1263 elif isinstance(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1264 o, wireprototypes.indefinitebytestringresponse
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1265 ):
40328
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1266 for chunk in cborutil.streamencodebytestringfromiter(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1267 o.chunks
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1268 ):
40328
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1269
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1270 for frame in emitter.send(chunk):
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1271 yield frame
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1272
40020
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1273 # A regular object is CBOR encoded.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1274 else:
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1275 for chunk in cborutil.streamencode(o):
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1276 for frame in emitter.send(chunk):
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1277 yield frame
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39838
diff changeset
1278
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1279 except Exception as e:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1280 for frame in createerrorframe(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1281 stream, requestid, b'%s' % e, errtype=b'server'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1282 ):
39559
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1283 yield frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1284
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39486
diff changeset
1285 break
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1286
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1287 self._activecommands.remove(requestid)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1288
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1289 return self._handlesendframes(sendframes())
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1290
37056
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1291 def oninputeof(self):
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1292 """Signals that end of input has been received.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1293
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1294 No more frames will be received. All pending activity should be
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1295 completed.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1296 """
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1297 # TODO should we do anything about in-flight commands?
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1298
37056
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1299 if not self._deferoutput or not self._bufferedframegens:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1300 return b'noop', {}
37056
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1301
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1302 # If we buffered all our responses, emit those.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1303 def makegen():
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1304 for gen in self._bufferedframegens:
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1305 for frame in gen:
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1306 yield frame
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1307
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1308 return b'sendframes', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1309 b'framegen': makegen(),
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1310 }
37055
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
1311
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1312 def _handlesendframes(self, framegen):
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1313 if self._deferoutput:
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1314 self._bufferedframegens.append(framegen)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1315 return b'noop', {}
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1316 else:
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1317 return b'sendframes', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1318 b'framegen': framegen,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1319 }
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1320
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
1321 def onservererror(self, stream, requestid, msg):
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1322 ensureserverstream(stream)
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37285
diff changeset
1323
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1324 def sendframes():
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1325 for frame in createerrorframe(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1326 stream, requestid, msg, errtype=b'server'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1327 ):
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1328 yield frame
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1329
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1330 self._activecommands.remove(requestid)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1331
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1332 return self._handlesendframes(sendframes())
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1333
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1334 def oncommanderror(self, stream, requestid, message, args=None):
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1335 """Called when a command encountered an error before sending output."""
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1336 ensureserverstream(stream)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1337
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1338 def sendframes():
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1339 for frame in createcommanderrorresponse(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1340 stream, requestid, message, args
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1341 ):
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1342 yield frame
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1343
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1344 self._activecommands.remove(requestid)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1345
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1346 return self._handlesendframes(sendframes())
37055
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37052
diff changeset
1347
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1348 def makeoutputstream(self):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1349 """Create a stream to be used for sending data to the client.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1350
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1351 If this is called before protocol settings frames are received, we
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1352 don't know what stream encodings are supported by the client and
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1353 we will default to identity.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1354 """
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1355 streamid = self._nextoutgoingstreamid
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1356 self._nextoutgoingstreamid += 2
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1357
40130
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
1358 s = outputstream(streamid)
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1359 self._outgoingstreams[streamid] = s
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1360
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1361 # Always use the *server's* preferred encoder over the client's,
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1362 # as servers have more to lose from sub-optimal encoders being used.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1363 for name in STREAM_ENCODERS_ORDER:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1364 if name in self._sendersettings[b'contentencodings']:
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1365 s.setencoder(self._ui, name)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1366 break
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1367
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1368 return s
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1369
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1370 def _makeerrorresult(self, msg):
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1371 return b'error', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1372 b'message': msg,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1373 }
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1374
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1375 def _makeruncommandresult(self, requestid):
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1376 entry = self._receivingcommands[requestid]
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1377
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1378 if not entry[b'requestdone']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1379 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1380 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1381 b'should not be called without requestdone set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1382 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1383
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1384 del self._receivingcommands[requestid]
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1385
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1386 if self._receivingcommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1387 self._state = b'command-receiving'
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1388 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1389 self._state = b'idle'
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1390
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1391 # Decode the payloads as CBOR.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1392 entry[b'payload'].seek(0)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1393 request = cborutil.decodeall(entry[b'payload'].getvalue())[0]
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1394
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1395 if b'name' not in request:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1396 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1397 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1398 _(b'command request missing "name" field')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1399 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1400
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1401 if b'args' not in request:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1402 request[b'args'] = {}
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1403
37063
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1404 assert requestid not in self._activecommands
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1405 self._activecommands.add(requestid)
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1406
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1407 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1408 b'runcommand',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1409 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1410 b'requestid': requestid,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1411 b'command': request[b'name'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1412 b'args': request[b'args'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1413 b'redirect': request.get(b'redirect'),
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1414 b'data': entry[b'data'].getvalue() if entry[b'data'] else None,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1415 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1416 )
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1417
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1418 def _makewantframeresult(self):
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1419 return b'wantframe', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1420 b'state': self._state,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1421 }
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1422
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1423 def _validatecommandrequestframe(self, frame):
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1424 new = frame.flags & FLAG_COMMAND_REQUEST_NEW
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1425 continuation = frame.flags & FLAG_COMMAND_REQUEST_CONTINUATION
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1426
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1427 if new and continuation:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1428 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1429 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1430 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1431 b'received command request frame with both new and '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1432 b'continuation flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1433 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1434 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1435
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1436 if not new and not continuation:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1437 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1438 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1439 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1440 b'received command request frame with neither new nor '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1441 b'continuation flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1442 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1443 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1444
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1445 def _onframeinitial(self, frame):
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1446 # Called when we receive a frame when in the "initial" state.
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1447 if frame.typeid == FRAME_TYPE_SENDER_PROTOCOL_SETTINGS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1448 self._state = b'protocol-settings-receiving'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1449 self._protocolsettingsdecoder = cborutil.bufferingdecoder()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1450 return self._onframeprotocolsettings(frame)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1451
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1452 elif frame.typeid == FRAME_TYPE_COMMAND_REQUEST:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1453 self._state = b'idle'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1454 return self._onframeidle(frame)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1455
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1456 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1457 self._state = b'errored'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1458 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1459 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1460 b'expected sender protocol settings or command request '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1461 b'frame; got %d'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1462 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1463 % frame.typeid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1464 )
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1465
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1466 def _onframeprotocolsettings(self, frame):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1467 assert self._state == b'protocol-settings-receiving'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1468 assert self._protocolsettingsdecoder is not None
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1469
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1470 if frame.typeid != FRAME_TYPE_SENDER_PROTOCOL_SETTINGS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1471 self._state = b'errored'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1472 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1473 _(b'expected sender protocol settings frame; got %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1474 % frame.typeid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1475 )
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1476
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1477 more = frame.flags & FLAG_SENDER_PROTOCOL_SETTINGS_CONTINUATION
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1478 eos = frame.flags & FLAG_SENDER_PROTOCOL_SETTINGS_EOS
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1479
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1480 if more and eos:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1481 self._state = b'errored'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1482 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1483 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1484 b'sender protocol settings frame cannot have both '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1485 b'continuation and end of stream flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1486 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1487 )
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1488
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1489 if not more and not eos:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1490 self._state = b'errored'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1491 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1492 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1493 b'sender protocol settings frame must have continuation or '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1494 b'end of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1495 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1496 )
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1497
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1498 # TODO establish limits for maximum amount of data that can be
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1499 # buffered.
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1500 try:
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1501 self._protocolsettingsdecoder.decode(frame.payload)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1502 except Exception as e:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1503 self._state = b'errored'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1504 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1505 _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1506 b'error decoding CBOR from sender protocol settings frame: %s'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1507 )
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1508 % stringutil.forcebytestr(e)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1509 )
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1510
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1511 if more:
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1512 return self._makewantframeresult()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1513
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1514 assert eos
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1515
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1516 decoded = self._protocolsettingsdecoder.getavailable()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1517 self._protocolsettingsdecoder = None
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1518
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1519 if not decoded:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1520 self._state = b'errored'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1521 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1522 _(b'sender protocol settings frame did not contain CBOR data')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1523 )
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1524 elif len(decoded) > 1:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1525 self._state = b'errored'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1526 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1527 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1528 b'sender protocol settings frame contained multiple CBOR '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1529 b'values'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1530 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1531 )
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1532
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1533 d = decoded[0]
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1534
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1535 if b'contentencodings' in d:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1536 self._sendersettings[b'contentencodings'] = d[b'contentencodings']
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1537
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1538 self._state = b'idle'
40126
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1539
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1540 return self._makewantframeresult()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40125
diff changeset
1541
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1542 def _onframeidle(self, frame):
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1543 # The only frame type that should be received in this state is a
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1544 # command request.
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1545 if frame.typeid != FRAME_TYPE_COMMAND_REQUEST:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1546 self._state = b'errored'
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1547 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1548 _(b'expected command request frame; got %d') % frame.typeid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1549 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1550
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1551 res = self._validatecommandrequestframe(frame)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1552 if res:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1553 return res
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1554
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1555 if frame.requestid in self._receivingcommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1556 self._state = b'errored'
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1557 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1558 _(b'request with ID %d already received') % frame.requestid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1559 )
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1560
37063
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1561 if frame.requestid in self._activecommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1562 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1563 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1564 _(b'request with ID %d is already active') % frame.requestid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1565 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1566
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1567 new = frame.flags & FLAG_COMMAND_REQUEST_NEW
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1568 moreframes = frame.flags & FLAG_COMMAND_REQUEST_MORE_FRAMES
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1569 expectingdata = frame.flags & FLAG_COMMAND_REQUEST_EXPECT_DATA
37063
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1570
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1571 if not new:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1572 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1573 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1574 _(b'received command request frame without new flag set')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1575 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1576
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1577 payload = util.bytesio()
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1578 payload.write(frame.payload)
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1579
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1580 self._receivingcommands[frame.requestid] = {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1581 b'payload': payload,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1582 b'data': None,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1583 b'requestdone': not moreframes,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1584 b'expectingdata': bool(expectingdata),
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1585 }
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1586
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1587 # This is the final frame for this request. Dispatch it.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1588 if not moreframes and not expectingdata:
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1589 return self._makeruncommandresult(frame.requestid)
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1590
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1591 assert moreframes or expectingdata
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1592 self._state = b'command-receiving'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1593 return self._makewantframeresult()
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1594
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1595 def _onframecommandreceiving(self, frame):
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1596 if frame.typeid == FRAME_TYPE_COMMAND_REQUEST:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1597 # Process new command requests as such.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1598 if frame.flags & FLAG_COMMAND_REQUEST_NEW:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1599 return self._onframeidle(frame)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1600
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1601 res = self._validatecommandrequestframe(frame)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1602 if res:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1603 return res
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1604
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1605 # All other frames should be related to a command that is currently
37063
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1606 # receiving but is not active.
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1607 if frame.requestid in self._activecommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1608 self._state = b'errored'
37063
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1609 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1610 _(b'received frame for request that is still active: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1611 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1612 )
37063
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37062
diff changeset
1613
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1614 if frame.requestid not in self._receivingcommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1615 self._state = b'errored'
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1616 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1617 _(b'received frame for request that is not receiving: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1618 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1619 )
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1620
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1621 entry = self._receivingcommands[frame.requestid]
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1622
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1623 if frame.typeid == FRAME_TYPE_COMMAND_REQUEST:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1624 moreframes = frame.flags & FLAG_COMMAND_REQUEST_MORE_FRAMES
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1625 expectingdata = bool(frame.flags & FLAG_COMMAND_REQUEST_EXPECT_DATA)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1626
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1627 if entry[b'requestdone']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1628 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1629 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1630 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1631 b'received command request frame when request frames '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1632 b'were supposedly done'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1633 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1634 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1635
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1636 if expectingdata != entry[b'expectingdata']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1637 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1638 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1639 _(b'mismatch between expect data flag and previous frame')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1640 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1641
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1642 entry[b'payload'].write(frame.payload)
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1643
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1644 if not moreframes:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1645 entry[b'requestdone'] = True
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1646
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1647 if not moreframes and not expectingdata:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1648 return self._makeruncommandresult(frame.requestid)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1649
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1650 return self._makewantframeresult()
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1651
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1652 elif frame.typeid == FRAME_TYPE_COMMAND_DATA:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1653 if not entry[b'expectingdata']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1654 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1655 return self._makeerrorresult(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1656 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1657 b'received command data frame for request that is not '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1658 b'expecting data: %d'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1659 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1660 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1661 )
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1662
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1663 if entry[b'data'] is None:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1664 entry[b'data'] = util.bytesio()
37058
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37057
diff changeset
1665
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1666 return self._handlecommanddataframe(frame, entry)
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1667 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1668 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1669 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1670 _(b'received unexpected frame type: %d') % frame.typeid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1671 )
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1672
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1673 def _handlecommanddataframe(self, frame, entry):
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1674 assert frame.typeid == FRAME_TYPE_COMMAND_DATA
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1675
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1676 # TODO support streaming data instead of buffering it.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1677 entry[b'data'].write(frame.payload)
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1678
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1679 if frame.flags & FLAG_COMMAND_DATA_CONTINUATION:
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1680 return self._makewantframeresult()
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1681 elif frame.flags & FLAG_COMMAND_DATA_EOS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1682 entry[b'data'].seek(0)
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1683 return self._makeruncommandresult(frame.requestid)
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1684 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1685 self._state = b'errored'
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1686 return self._makeerrorresult(_(b'command data frame without flags'))
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37051
diff changeset
1687
37061
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1688 def _onframeerrored(self, frame):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1689 return self._makeerrorresult(_(b'server already errored'))
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1690
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1691
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1692 class commandrequest(object):
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1693 """Represents a request to run a command."""
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1694
40024
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40020
diff changeset
1695 def __init__(self, requestid, name, args, datafh=None, redirect=None):
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1696 self.requestid = requestid
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1697 self.name = name
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1698 self.args = args
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1699 self.datafh = datafh
40024
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40020
diff changeset
1700 self.redirect = redirect
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1701 self.state = b'pending'
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1702
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1703
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1704 class clientreactor(object):
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1705 """Holds state of a client issuing frame-based protocol requests.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1706
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1707 This is like ``serverreactor`` but for client-side state.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1708
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1709 Each instance is bound to the lifetime of a connection. For persistent
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1710 connection transports using e.g. TCP sockets and speaking the raw
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1711 framing protocol, there will be a single instance for the lifetime of
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1712 the TCP socket. For transports where there are multiple discrete
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1713 interactions (say tunneled within in HTTP request), there will be a
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1714 separate instance for each distinct interaction.
40127
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1715
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1716 Consumers are expected to tell instances when events occur by calling
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1717 various methods. These methods return a 2-tuple describing any follow-up
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1718 action(s) to take. The first element is the name of an action to
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1719 perform. The second is a data structure (usually a dict) specific to
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1720 that action that contains more information. e.g. if the reactor wants
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1721 to send frames to the server, the data structure will contain a reference
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1722 to those frames.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1723
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1724 Valid actions that consumers can be instructed to take are:
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1725
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1726 noop
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1727 Indicates no additional action is required.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1728
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1729 sendframes
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1730 Indicates that frames should be sent to the server. The ``framegen``
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1731 key contains a generator of frames that should be sent. The reactor
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1732 assumes that all frames in this generator are sent to the server.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1733
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1734 error
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1735 Indicates that an error occurred. The ``message`` key contains an
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1736 error message describing the failure.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1737
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1738 responsedata
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1739 Indicates a response to a previously-issued command was received.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1740
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1741 The ``request`` key contains the ``commandrequest`` instance that
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1742 represents the request this data is for.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1743
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1744 The ``data`` key contains the decoded data from the server.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1745
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1746 ``expectmore`` and ``eos`` evaluate to True when more response data
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1747 is expected to follow or we're at the end of the response stream,
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1748 respectively.
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1749 """
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1750
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1751 def __init__(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1752 self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1753 ui,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1754 hasmultiplesend=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1755 buffersends=True,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1756 clientcontentencoders=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1757 ):
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1758 """Create a new instance.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1759
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1760 ``hasmultiplesend`` indicates whether multiple sends are supported
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1761 by the transport. When True, it is possible to send commands immediately
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1762 instead of buffering until the caller signals an intent to finish a
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1763 send operation.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1764
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1765 ``buffercommands`` indicates whether sends should be buffered until the
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1766 last request has been issued.
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1767
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1768 ``clientcontentencoders`` is an iterable of content encoders the client
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1769 will advertise to the server and that the server can use for encoding
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1770 data. If not defined, the client will not advertise content encoders
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1771 to the server.
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1772 """
40129
293835e0fff7 wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1773 self._ui = ui
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1774 self._hasmultiplesend = hasmultiplesend
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1775 self._buffersends = buffersends
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1776 self._clientcontentencoders = clientcontentencoders
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1777
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1778 self._canissuecommands = True
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1779 self._cansend = True
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1780 self._protocolsettingssent = False
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1781
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1782 self._nextrequestid = 1
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1783 # We only support a single outgoing stream for now.
40130
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
1784 self._outgoingstream = outputstream(1)
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1785 self._pendingrequests = collections.deque()
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1786 self._activerequests = {}
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1787 self._incomingstreams = {}
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1788 self._streamsettingsdecoders = {}
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1789
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1790 populatestreamencoders()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1791
40024
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40020
diff changeset
1792 def callcommand(self, name, args, datafh=None, redirect=None):
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1793 """Request that a command be executed.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1794
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1795 Receives the command name, a dict of arguments to pass to the command,
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1796 and an optional file object containing the raw data for the command.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1797
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1798 Returns a 3-tuple of (request, action, action data).
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1799 """
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1800 if not self._canissuecommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1801 raise error.ProgrammingError(b'cannot issue new commands')
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1802
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1803 requestid = self._nextrequestid
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1804 self._nextrequestid += 2
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1805
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1806 request = commandrequest(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1807 requestid, name, args, datafh=datafh, redirect=redirect
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1808 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1809
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1810 if self._buffersends:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1811 self._pendingrequests.append(request)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1812 return request, b'noop', {}
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1813 else:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1814 if not self._cansend:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1815 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1816 b'sends cannot be performed on this instance'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1817 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1818
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1819 if not self._hasmultiplesend:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1820 self._cansend = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1821 self._canissuecommands = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1822
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1823 return (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1824 request,
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1825 b'sendframes',
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1826 {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1827 b'framegen': self._makecommandframes(request),
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1828 },
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1829 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1830
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1831 def flushcommands(self):
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1832 """Request that all queued commands be sent.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1833
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1834 If any commands are buffered, this will instruct the caller to send
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1835 them over the wire. If no commands are buffered it instructs the client
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1836 to no-op.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1837
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1838 If instances aren't configured for multiple sends, no new command
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1839 requests are allowed after this is called.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1840 """
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1841 if not self._pendingrequests:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1842 return b'noop', {}
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1843
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1844 if not self._cansend:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1845 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1846 b'sends cannot be performed on this instance'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1847 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1848
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1849 # If the instance only allows sending once, mark that we have fired
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1850 # our one shot.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1851 if not self._hasmultiplesend:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1852 self._canissuecommands = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1853 self._cansend = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1854
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1855 def makeframes():
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1856 while self._pendingrequests:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1857 request = self._pendingrequests.popleft()
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1858 for frame in self._makecommandframes(request):
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1859 yield frame
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1860
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1861 return b'sendframes', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1862 b'framegen': makeframes(),
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1863 }
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1864
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1865 def _makecommandframes(self, request):
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1866 """Emit frames to issue a command request.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1867
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1868 As a side-effect, update request accounting to reflect its changed
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1869 state.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1870 """
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1871 self._activerequests[request.requestid] = request
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1872 request.state = b'sending'
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1873
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1874 if not self._protocolsettingssent and self._clientcontentencoders:
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1875 self._protocolsettingssent = True
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1876
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1877 payload = b''.join(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1878 cborutil.streamencode(
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1879 {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1880 b'contentencodings': self._clientcontentencoders,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
1881 }
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1882 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1883 )
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1884
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1885 yield self._outgoingstream.makeframe(
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1886 requestid=request.requestid,
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1887 typeid=FRAME_TYPE_SENDER_PROTOCOL_SETTINGS,
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1888 flags=FLAG_SENDER_PROTOCOL_SETTINGS_EOS,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1889 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1890 )
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1891
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1892 res = createcommandframes(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1893 self._outgoingstream,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1894 request.requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1895 request.name,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1896 request.args,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1897 datafh=request.datafh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1898 redirect=request.redirect,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1899 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1900
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1901 for frame in res:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1902 yield frame
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1903
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1904 request.state = b'sent'
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1905
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1906 def onframerecv(self, frame):
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1907 """Process a frame that has been received off the wire.
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1908
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1909 Returns a 2-tuple of (action, meta) describing further action the
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1910 caller needs to take as a result of receiving this frame.
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1911 """
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1912 if frame.streamid % 2:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1913 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1914 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1915 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1916 b'message': (
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1917 _(b'received frame with odd numbered stream ID: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1918 % frame.streamid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1919 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1920 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1921 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1922
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1923 if frame.streamid not in self._incomingstreams:
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1924 if not frame.streamflags & STREAM_FLAG_BEGIN_STREAM:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1925 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1926 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1927 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1928 b'message': _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1929 b'received frame on unknown stream '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1930 b'without beginning of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1931 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1932 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1933 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1934
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1935 self._incomingstreams[frame.streamid] = inputstream(frame.streamid)
37656
e6870bca1f47 wireprotoframing: record when new stream is encountered
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37655
diff changeset
1936
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1937 stream = self._incomingstreams[frame.streamid]
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1938
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1939 # If the payload is encoded, ask the stream to decode it. We
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1940 # merely substitute the decoded result into the frame payload as
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1941 # if it had been transferred all along.
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1942 if frame.streamflags & STREAM_FLAG_ENCODING_APPLIED:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1943 frame.payload = stream.decode(frame.payload)
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1944
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1945 if frame.streamflags & STREAM_FLAG_END_STREAM:
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1946 del self._incomingstreams[frame.streamid]
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1947
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1948 if frame.typeid == FRAME_TYPE_STREAM_SETTINGS:
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1949 return self._onstreamsettingsframe(frame)
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1950
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1951 if frame.requestid not in self._activerequests:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1952 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1953 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1954 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1955 b'message': (
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1956 _(b'received frame for inactive request ID: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1957 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1958 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1959 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1960 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1961
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1962 request = self._activerequests[frame.requestid]
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1963 request.state = b'receiving'
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1964
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1965 handlers = {
37724
deff7cf7eefd wireprotov2: change frame type and name for command response
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37723
diff changeset
1966 FRAME_TYPE_COMMAND_RESPONSE: self._oncommandresponseframe,
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
1967 FRAME_TYPE_ERROR_RESPONSE: self._onerrorresponseframe,
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1968 }
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1969
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1970 meth = handlers.get(frame.typeid)
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1971 if not meth:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1972 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1973 b'unhandled frame type: %d' % frame.typeid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1974 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1975
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1976 return meth(request, frame)
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1977
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1978 def _onstreamsettingsframe(self, frame):
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1979 assert frame.typeid == FRAME_TYPE_STREAM_SETTINGS
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1980
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1981 more = frame.flags & FLAG_STREAM_ENCODING_SETTINGS_CONTINUATION
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1982 eos = frame.flags & FLAG_STREAM_ENCODING_SETTINGS_EOS
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1983
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1984 if more and eos:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1985 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1986 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1987 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1988 b'message': (
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1989 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1990 b'stream encoding settings frame cannot have both '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1991 b'continuation and end of stream flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1992 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1993 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1994 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1995 )
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1996
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1997 if not more and not eos:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1998 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1999 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2000 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2001 b'message': _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2002 b'stream encoding settings frame must have '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2003 b'continuation or end of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2004 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2005 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2006 )
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2007
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2008 if frame.streamid not in self._streamsettingsdecoders:
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2009 decoder = cborutil.bufferingdecoder()
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2010 self._streamsettingsdecoders[frame.streamid] = decoder
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2011
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2012 decoder = self._streamsettingsdecoders[frame.streamid]
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2013
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2014 try:
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2015 decoder.decode(frame.payload)
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2016 except Exception as e:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2017 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2018 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2019 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2020 b'message': (
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2021 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2022 b'error decoding CBOR from stream encoding '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2023 b'settings frame: %s'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2024 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2025 % stringutil.forcebytestr(e)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2026 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2027 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2028 )
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2029
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2030 if more:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2031 return b'noop', {}
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2032
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2033 assert eos
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2034
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2035 decoded = decoder.getavailable()
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2036 del self._streamsettingsdecoders[frame.streamid]
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2037
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2038 if not decoded:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2039 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2040 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2041 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2042 b'message': _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2043 b'stream encoding settings frame did not contain '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2044 b'CBOR data'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2045 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2046 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2047 )
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2048
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2049 try:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2050 self._incomingstreams[frame.streamid].setdecoder(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2051 self._ui, decoded[0], decoded[1:]
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2052 )
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2053 except Exception as e:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2054 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2055 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2056 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2057 b'message': (
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2058 _(b'error setting stream decoder: %s')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2059 % stringutil.forcebytestr(e)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2060 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2061 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2062 )
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2063
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2064 return b'noop', {}
40128
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
2065
37724
deff7cf7eefd wireprotov2: change frame type and name for command response
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37723
diff changeset
2066 def _oncommandresponseframe(self, request, frame):
deff7cf7eefd wireprotov2: change frame type and name for command response
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37723
diff changeset
2067 if frame.flags & FLAG_COMMAND_RESPONSE_EOS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2068 request.state = b'received'
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
2069 del self._activerequests[request.requestid]
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
2070
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2071 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2072 b'responsedata',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2073 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2074 b'request': request,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2075 b'expectmore': frame.flags & FLAG_COMMAND_RESPONSE_CONTINUATION,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2076 b'eos': frame.flags & FLAG_COMMAND_RESPONSE_EOS,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2077 b'data': frame.payload,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2078 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2079 )
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2080
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2081 def _onerrorresponseframe(self, request, frame):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2082 request.state = b'errored'
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2083 del self._activerequests[request.requestid]
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2084
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2085 # The payload should be a CBOR map.
39446
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
2086 m = cborutil.decodeall(frame.payload)[0]
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2087
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2088 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2089 b'error',
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2090 {
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2091 b'request': request,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2092 b'type': m[b'type'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2093 b'message': m[b'message'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2094 },
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2095 )