Mercurial > hg
annotate mercurial/httppeer.py @ 40163:9f0ee4a60d65
tests: ensure the python 3 passing test list stays sorted
Differential Revision: https://phab.mercurial-scm.org/D4984
author | Augie Fackler <augie@google.com> |
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date | Fri, 12 Oct 2018 06:39:32 -0400 |
parents | 762ef19a07e3 |
children | dac438b7346e |
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1 # httppeer.py - HTTP repository proxy classes for mercurial |
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2 # |
2859 | 3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> | |
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5 # |
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6 # This software may be used and distributed according to the terms of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
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8 |
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9 from __future__ import absolute_import |
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10 |
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11 import errno |
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12 import io |
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13 import os |
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14 import socket |
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15 import struct |
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16 import weakref |
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17 |
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18 from .i18n import _ |
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19 from . import ( |
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20 bundle2, |
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21 error, |
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22 httpconnection, |
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23 pycompat, |
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24 repository, |
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25 statichttprepo, |
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26 url as urlmod, |
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27 util, |
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28 wireprotoframing, |
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29 wireprototypes, |
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30 wireprotov1peer, |
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31 wireprotov2peer, |
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32 wireprotov2server, |
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33 ) |
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34 from .utils import ( |
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35 cborutil, |
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36 interfaceutil, |
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37 stringutil, |
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38 ) |
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39 |
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40 httplib = util.httplib |
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41 urlerr = util.urlerr |
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42 urlreq = util.urlreq |
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43 |
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44 def encodevalueinheaders(value, header, limit): |
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45 """Encode a string value into multiple HTTP headers. |
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46 |
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47 ``value`` will be encoded into 1 or more HTTP headers with the names |
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48 ``header-<N>`` where ``<N>`` is an integer starting at 1. Each header |
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49 name + value will be at most ``limit`` bytes long. |
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50 |
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51 Returns an iterable of 2-tuples consisting of header names and |
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52 values as native strings. |
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53 """ |
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54 # HTTP Headers are ASCII. Python 3 requires them to be unicodes, |
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55 # not bytes. This function always takes bytes in as arguments. |
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56 fmt = pycompat.strurl(header) + r'-%s' |
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57 # Note: it is *NOT* a bug that the last bit here is a bytestring |
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58 # and not a unicode: we're just getting the encoded length anyway, |
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59 # and using an r-string to make it portable between Python 2 and 3 |
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60 # doesn't work because then the \r is a literal backslash-r |
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61 # instead of a carriage return. |
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62 valuelen = limit - len(fmt % r'000') - len(': \r\n') |
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63 result = [] |
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64 |
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65 n = 0 |
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66 for i in pycompat.xrange(0, len(value), valuelen): |
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67 n += 1 |
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68 result.append((fmt % str(n), pycompat.strurl(value[i:i + valuelen]))) |
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69 |
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70 return result |
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71 |
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72 class _multifile(object): |
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73 def __init__(self, *fileobjs): |
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74 for f in fileobjs: |
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75 if not util.safehasattr(f, 'length'): |
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76 raise ValueError( |
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77 '_multifile only supports file objects that ' |
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78 'have a length but this one does not:', type(f), f) |
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79 self._fileobjs = fileobjs |
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80 self._index = 0 |
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81 |
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82 @property |
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83 def length(self): |
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84 return sum(f.length for f in self._fileobjs) |
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85 |
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86 def read(self, amt=None): |
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87 if amt <= 0: |
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88 return ''.join(f.read() for f in self._fileobjs) |
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89 parts = [] |
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90 while amt and self._index < len(self._fileobjs): |
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91 parts.append(self._fileobjs[self._index].read(amt)) |
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92 got = len(parts[-1]) |
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93 if got < amt: |
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94 self._index += 1 |
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95 amt -= got |
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96 return ''.join(parts) |
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97 |
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98 def seek(self, offset, whence=os.SEEK_SET): |
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99 if whence != os.SEEK_SET: |
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100 raise NotImplementedError( |
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101 '_multifile does not support anything other' |
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102 ' than os.SEEK_SET for whence on seek()') |
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103 if offset != 0: |
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104 raise NotImplementedError( |
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105 '_multifile only supports seeking to start, but that ' |
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106 'could be fixed if you need it') |
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107 for f in self._fileobjs: |
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108 f.seek(0) |
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109 self._index = 0 |
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110 |
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111 def makev1commandrequest(ui, requestbuilder, caps, capablefn, |
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112 repobaseurl, cmd, args): |
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113 """Make an HTTP request to run a command for a version 1 client. |
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114 |
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115 ``caps`` is a set of known server capabilities. The value may be |
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116 None if capabilities are not yet known. |
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117 |
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118 ``capablefn`` is a function to evaluate a capability. |
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119 |
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120 ``cmd``, ``args``, and ``data`` define the command, its arguments, and |
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121 raw data to pass to it. |
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122 """ |
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123 if cmd == 'pushkey': |
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124 args['data'] = '' |
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125 data = args.pop('data', None) |
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126 headers = args.pop('headers', {}) |
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127 |
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128 ui.debug("sending %s command\n" % cmd) |
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129 q = [('cmd', cmd)] |
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130 headersize = 0 |
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131 # Important: don't use self.capable() here or else you end up |
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132 # with infinite recursion when trying to look up capabilities |
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133 # for the first time. |
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134 postargsok = caps is not None and 'httppostargs' in caps |
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135 |
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136 # Send arguments via POST. |
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137 if postargsok and args: |
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138 strargs = urlreq.urlencode(sorted(args.items())) |
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139 if not data: |
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140 data = strargs |
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141 else: |
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142 if isinstance(data, bytes): |
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143 i = io.BytesIO(data) |
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144 i.length = len(data) |
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145 data = i |
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146 argsio = io.BytesIO(strargs) |
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147 argsio.length = len(strargs) |
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148 data = _multifile(argsio, data) |
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149 headers[r'X-HgArgs-Post'] = len(strargs) |
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150 elif args: |
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151 # Calling self.capable() can infinite loop if we are calling |
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152 # "capabilities". But that command should never accept wire |
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153 # protocol arguments. So this should never happen. |
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154 assert cmd != 'capabilities' |
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155 httpheader = capablefn('httpheader') |
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156 if httpheader: |
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157 headersize = int(httpheader.split(',', 1)[0]) |
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158 |
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159 # Send arguments via HTTP headers. |
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160 if headersize > 0: |
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161 # The headers can typically carry more data than the URL. |
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162 encargs = urlreq.urlencode(sorted(args.items())) |
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163 for header, value in encodevalueinheaders(encargs, 'X-HgArg', |
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164 headersize): |
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165 headers[header] = value |
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166 # Send arguments via query string (Mercurial <1.9). |
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167 else: |
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168 q += sorted(args.items()) |
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169 |
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170 qs = '?%s' % urlreq.urlencode(q) |
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171 cu = "%s%s" % (repobaseurl, qs) |
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172 size = 0 |
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173 if util.safehasattr(data, 'length'): |
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174 size = data.length |
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175 elif data is not None: |
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176 size = len(data) |
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177 if data is not None and r'Content-Type' not in headers: |
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178 headers[r'Content-Type'] = r'application/mercurial-0.1' |
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179 |
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180 # Tell the server we accept application/mercurial-0.2 and multiple |
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181 # compression formats if the server is capable of emitting those |
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182 # payloads. |
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183 # Note: Keep this set empty by default, as client advertisement of |
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184 # protocol parameters should only occur after the handshake. |
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185 protoparams = set() |
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186 |
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187 mediatypes = set() |
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188 if caps is not None: |
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189 mt = capablefn('httpmediatype') |
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190 if mt: |
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191 protoparams.add('0.1') |
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192 mediatypes = set(mt.split(',')) |
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193 |
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194 protoparams.add('partial-pull') |
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195 |
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196 if '0.2tx' in mediatypes: |
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197 protoparams.add('0.2') |
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198 |
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199 if '0.2tx' in mediatypes and capablefn('compression'): |
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200 # We /could/ compare supported compression formats and prune |
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201 # non-mutually supported or error if nothing is mutually supported. |
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202 # For now, send the full list to the server and have it error. |
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203 comps = [e.wireprotosupport().name for e in |
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204 util.compengines.supportedwireengines(util.CLIENTROLE)] |
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205 protoparams.add('comp=%s' % ','.join(comps)) |
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206 |
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207 if protoparams: |
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208 protoheaders = encodevalueinheaders(' '.join(sorted(protoparams)), |
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209 'X-HgProto', |
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210 headersize or 1024) |
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211 for header, value in protoheaders: |
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212 headers[header] = value |
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213 |
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214 varyheaders = [] |
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215 for header in headers: |
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216 if header.lower().startswith(r'x-hg'): |
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217 varyheaders.append(header) |
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218 |
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219 if varyheaders: |
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220 headers[r'Vary'] = r','.join(sorted(varyheaders)) |
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221 |
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222 req = requestbuilder(pycompat.strurl(cu), data, headers) |
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223 |
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224 if data is not None: |
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225 ui.debug("sending %d bytes\n" % size) |
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226 req.add_unredirected_header(r'Content-Length', r'%d' % size) |
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227 |
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228 return req, cu, qs |
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229 |
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230 def _reqdata(req): |
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231 """Get request data, if any. If no data, returns None.""" |
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232 if pycompat.ispy3: |
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233 return req.data |
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234 if not req.has_data(): |
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235 return None |
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236 return req.get_data() |
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237 |
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238 def sendrequest(ui, opener, req): |
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239 """Send a prepared HTTP request. |
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240 |
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241 Returns the response object. |
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242 """ |
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243 dbg = ui.debug |
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244 if (ui.debugflag |
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245 and ui.configbool('devel', 'debug.peer-request')): |
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246 line = 'devel-peer-request: %s\n' |
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247 dbg(line % '%s %s' % (pycompat.bytesurl(req.get_method()), |
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248 pycompat.bytesurl(req.get_full_url()))) |
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249 hgargssize = None |
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250 |
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251 for header, value in sorted(req.header_items()): |
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252 header = pycompat.bytesurl(header) |
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253 value = pycompat.bytesurl(value) |
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254 if header.startswith('X-hgarg-'): |
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255 if hgargssize is None: |
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256 hgargssize = 0 |
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257 hgargssize += len(value) |
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258 else: |
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259 dbg(line % ' %s %s' % (header, value)) |
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260 |
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261 if hgargssize is not None: |
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262 dbg(line % ' %d bytes of commands arguments in headers' |
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263 % hgargssize) |
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264 data = _reqdata(req) |
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265 if data is not None: |
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266 length = getattr(data, 'length', None) |
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267 if length is None: |
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268 length = len(data) |
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269 dbg(line % ' %d bytes of data' % length) |
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270 |
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271 start = util.timer() |
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272 |
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273 res = None |
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274 try: |
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275 res = opener.open(req) |
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276 except urlerr.httperror as inst: |
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277 if inst.code == 401: |
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278 raise error.Abort(_('authorization failed')) |
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279 raise |
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280 except httplib.HTTPException as inst: |
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281 ui.debug('http error requesting %s\n' % |
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282 util.hidepassword(req.get_full_url())) |
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283 ui.traceback() |
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284 raise IOError(None, inst) |
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285 finally: |
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286 if ui.debugflag and ui.configbool('devel', 'debug.peer-request'): |
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287 code = res.code if res else -1 |
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288 dbg(line % ' finished in %.4f seconds (%d)' |
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289 % (util.timer() - start, code)) |
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290 |
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291 # Insert error handlers for common I/O failures. |
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292 urlmod.wrapresponse(res) |
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293 |
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294 return res |
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295 |
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296 class RedirectedRepoError(error.RepoError): |
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297 def __init__(self, msg, respurl): |
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298 super(RedirectedRepoError, self).__init__(msg) |
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299 self.respurl = respurl |
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300 |
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301 def parsev1commandresponse(ui, baseurl, requrl, qs, resp, compressible, |
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302 allowcbor=False): |
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303 # record the url we got redirected to |
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304 redirected = False |
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305 respurl = pycompat.bytesurl(resp.geturl()) |
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306 if respurl.endswith(qs): |
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307 respurl = respurl[:-len(qs)] |
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308 qsdropped = False |
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309 else: |
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310 qsdropped = True |
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311 |
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312 if baseurl.rstrip('/') != respurl.rstrip('/'): |
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313 redirected = True |
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314 if not ui.quiet: |
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315 ui.warn(_('real URL is %s\n') % respurl) |
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316 |
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317 try: |
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318 proto = pycompat.bytesurl(resp.getheader(r'content-type', r'')) |
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319 except AttributeError: |
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320 proto = pycompat.bytesurl(resp.headers.get(r'content-type', r'')) |
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321 |
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322 safeurl = util.hidepassword(baseurl) |
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323 if proto.startswith('application/hg-error'): |
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324 raise error.OutOfBandError(resp.read()) |
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325 |
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326 # Pre 1.0 versions of Mercurial used text/plain and |
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327 # application/hg-changegroup. We don't support such old servers. |
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328 if not proto.startswith('application/mercurial-'): |
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329 ui.debug("requested URL: '%s'\n" % util.hidepassword(requrl)) |
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330 msg = _("'%s' does not appear to be an hg repository:\n" |
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331 "---%%<--- (%s)\n%s\n---%%<---\n") % ( |
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332 safeurl, proto or 'no content-type', resp.read(1024)) |
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333 |
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334 # Some servers may strip the query string from the redirect. We |
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335 # raise a special error type so callers can react to this specially. |
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336 if redirected and qsdropped: |
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337 raise RedirectedRepoError(msg, respurl) |
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338 else: |
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339 raise error.RepoError(msg) |
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340 |
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341 try: |
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342 subtype = proto.split('-', 1)[1] |
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343 |
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344 # Unless we end up supporting CBOR in the legacy wire protocol, |
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345 # this should ONLY be encountered for the initial capabilities |
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346 # request during handshake. |
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347 if subtype == 'cbor': |
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348 if allowcbor: |
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349 return respurl, proto, resp |
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350 else: |
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351 raise error.RepoError(_('unexpected CBOR response from ' |
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352 'server')) |
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353 |
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354 version_info = tuple([int(n) for n in subtype.split('.')]) |
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355 except ValueError: |
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356 raise error.RepoError(_("'%s' sent a broken Content-Type " |
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357 "header (%s)") % (safeurl, proto)) |
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358 |
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359 # TODO consider switching to a decompression reader that uses |
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360 # generators. |
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361 if version_info == (0, 1): |
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362 if compressible: |
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363 resp = util.compengines['zlib'].decompressorreader(resp) |
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364 |
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365 elif version_info == (0, 2): |
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366 # application/mercurial-0.2 always identifies the compression |
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367 # engine in the payload header. |
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368 elen = struct.unpack('B', util.readexactly(resp, 1))[0] |
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369 ename = util.readexactly(resp, elen) |
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370 engine = util.compengines.forwiretype(ename) |
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371 |
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372 resp = engine.decompressorreader(resp) |
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373 else: |
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374 raise error.RepoError(_("'%s' uses newer protocol %s") % |
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375 (safeurl, subtype)) |
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376 |
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377 return respurl, proto, resp |
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378 |
37614
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379 class httppeer(wireprotov1peer.wirepeer): |
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380 def __init__(self, ui, path, url, opener, requestbuilder, caps): |
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381 self.ui = ui |
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382 self._path = path |
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383 self._url = url |
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384 self._caps = caps |
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385 self._urlopener = opener |
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httppeer: move requestbuilder defaults into makepeer() argument
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|
386 self._requestbuilder = requestbuilder |
4516
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Removed trailing whitespace and tabs from python files
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parents:
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diff
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|
387 |
7752
998fc8f62539
close sockets on httprepository deletion (issue1487)
Steve Borho <steve@borho.org>
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388 def __del__(self): |
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389 for h in self._urlopener.handlers: |
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390 h.close() |
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|
391 getattr(h, "close_all", lambda: None)() |
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|
392 |
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393 # Begin of ipeerconnection interface. |
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394 |
2673
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hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
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parents:
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395 def url(self): |
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396 return self._path |
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|
397 |
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398 def local(self): |
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399 return None |
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|
400 |
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|
401 def peer(self): |
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402 return self |
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diff
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|
403 |
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diff
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|
404 def canpush(self): |
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|
405 return True |
2442
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http: query server for capabilities
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parents:
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diff
changeset
|
406 |
33805
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|
407 def close(self): |
40034
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diff
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|
408 self.ui.note(_('(sent %d HTTP requests and %d bytes; ' |
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diff
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|
409 'received %d bytes in responses)\n') % |
393e44324037
httppeer: report http statistics
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diff
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|
410 (self._urlopener.requestscount, |
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httppeer: report http statistics
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diff
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|
411 self._urlopener.sentbytescount, |
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diff
changeset
|
412 self._urlopener.receivedbytescount)) |
13603
395a84f78736
httprepo: use caps instead of between for compat check
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parents:
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diff
changeset
|
413 |
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|
414 # End of ipeerconnection interface. |
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|
415 |
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diff
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|
416 # Begin of ipeercommands interface. |
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diff
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|
417 |
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diff
changeset
|
418 def capabilities(self): |
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|
419 return self._caps |
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|
420 |
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|
421 # End of ipeercommands interface. |
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diff
changeset
|
422 |
30464
e16e234b9ca3
httppeer: do decompression inside _callstream
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parents:
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diff
changeset
|
423 def _callstream(self, cmd, _compressible=False, **args): |
35359
98bc4c43f570
py3: handle keyword arguments correctly in httppeer.py
Pulkit Goyal <7895pulkit@gmail.com>
parents:
35197
diff
changeset
|
424 args = pycompat.byteskwargs(args) |
36218
e4ccd7a69f77
httppeer: change logic around argument handling
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parents:
35884
diff
changeset
|
425 |
37549
66d1001e1500
httppeer: extract code for creating a request into own function
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diff
changeset
|
426 req, cu, qs = makev1commandrequest(self.ui, self._requestbuilder, |
66d1001e1500
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diff
changeset
|
427 self._caps, self.capable, |
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parents:
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diff
changeset
|
428 self._url, cmd, args) |
30763
a520aefb96f1
httppeer: advertise and support application/mercurial-0.2
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30759
diff
changeset
|
429 |
37550
b5862ee01abe
httppeer: move error handling and response wrapping into sendrequest
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parents:
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diff
changeset
|
430 resp = sendrequest(self.ui, self._urlopener, req) |
32002
bf855efe5664
httppeer: wrap HTTPResponse.read() globally
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parents:
30924
diff
changeset
|
431 |
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|
432 self._url, ct, resp = parsev1commandresponse(self.ui, self._url, cu, qs, |
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|
433 resp, _compressible) |
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parents:
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diff
changeset
|
434 |
752 | 435 return resp |
60 | 436 |
11589
e8d22fe2ddab
protocol: clean up call-like functions in http and ssh clients
Matt Mackall <mpm@selenic.com>
parents:
11588
diff
changeset
|
437 def _call(self, cmd, **args): |
e8d22fe2ddab
protocol: clean up call-like functions in http and ssh clients
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parents:
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diff
changeset
|
438 fp = self._callstream(cmd, **args) |
2435
ff2bac730b99
http client: support persistent connections.
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parents:
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diff
changeset
|
439 try: |
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diff
changeset
|
440 return fp.read() |
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diff
changeset
|
441 finally: |
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diff
changeset
|
442 # if using keepalive, allow connection to be reused |
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diff
changeset
|
443 fp.close() |
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diff
changeset
|
444 |
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11591
diff
changeset
|
445 def _callpush(self, cmd, cg, **args): |
2465
c91118f425d0
push over http: client support.
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parents:
2447
diff
changeset
|
446 # have to stream bundle to a temp file because we do not have |
c91118f425d0
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diff
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|
447 # http 1.1 chunked transfer. |
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diff
changeset
|
448 |
3662
f4dc02d7fb71
unduplicate bundle writing code from httprepo
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
449 types = self.capable('unbundle') |
3703
e674cae8efee
fix push over HTTP to older servers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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diff
changeset
|
450 try: |
e674cae8efee
fix push over HTTP to older servers
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diff
changeset
|
451 types = types.split(',') |
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fix push over HTTP to older servers
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diff
changeset
|
452 except AttributeError: |
14060
aaa9a5989405
bundle: more comments about the different header types, remove useless if
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parents:
13819
diff
changeset
|
453 # servers older than d1b16a746db6 will send 'unbundle' as a |
aaa9a5989405
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|
454 # boolean capability. They only support headerless/uncompressed |
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changeset
|
455 # bundles. |
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|
456 types = [""] |
14060
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diff
changeset
|
457 for x in types: |
28666
ae53ecc47414
bundle: move writebundle() from changegroup.py to bundle2.py (API)
Martin von Zweigbergk <martinvonz@google.com>
parents:
28530
diff
changeset
|
458 if x in bundle2.bundletypes: |
14060
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diff
changeset
|
459 type = x |
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diff
changeset
|
460 break |
3613
cbf352b9a3cd
Client support for hgweb unbundle with versions.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3609
diff
changeset
|
461 |
28666
ae53ecc47414
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Martin von Zweigbergk <martinvonz@google.com>
parents:
28530
diff
changeset
|
462 tempname = bundle2.writebundle(self.ui, cg, None, type) |
14244
e7525a555a64
url: use new http support if requested by the user
Augie Fackler <durin42@gmail.com>
parents:
14149
diff
changeset
|
463 fp = httpconnection.httpsendfile(self.ui, tempname, "rb") |
36297
a59ff82154b8
httppeer: headers are native strings
Augie Fackler <augie@google.com>
parents:
36270
diff
changeset
|
464 headers = {r'Content-Type': r'application/mercurial-0.1'} |
11592
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protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
465 |
2465
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2447
diff
changeset
|
466 try: |
25085
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httppeer: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
23895
diff
changeset
|
467 r = self._call(cmd, data=fp, headers=headers, **args) |
e05734cd7902
httppeer: use try/except/finally
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parents:
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diff
changeset
|
468 vals = r.split('\n', 1) |
e05734cd7902
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parents:
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diff
changeset
|
469 if len(vals) < 2: |
e05734cd7902
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parents:
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diff
changeset
|
470 raise error.ResponseError(_("unexpected response:"), r) |
e05734cd7902
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parents:
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diff
changeset
|
471 return vals |
36430
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
Augie Fackler <augie@google.com>
parents:
36426
diff
changeset
|
472 except urlerr.httperror: |
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
473 # Catch and re-raise these so we don't try and treat them |
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
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parents:
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diff
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|
474 # like generic socket errors. They lack any values in |
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
475 # .args on Python 3 which breaks our socket.error block. |
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
476 raise |
25660
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global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25500
diff
changeset
|
477 except socket.error as err: |
25085
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parents:
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|
478 if err.args[0] in (errno.ECONNRESET, errno.EPIPE): |
26587
56b2bcea2529
error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
479 raise error.Abort(_('push failed: %s') % err.args[1]) |
56b2bcea2529
error: get Abort from 'error' instead of 'util'
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diff
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|
480 raise error.Abort(err.args[1]) |
2465
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parents:
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diff
changeset
|
481 finally: |
c91118f425d0
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diff
changeset
|
482 fp.close() |
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diff
changeset
|
483 os.unlink(tempname) |
2439
e8c4f3d3df8c
extend network protocol to stop clients from locking servers
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2435
diff
changeset
|
484 |
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|
485 def _calltwowaystream(self, cmd, fp, **args): |
f8a0d82b0463
httppeer: support for _calltwowaystream
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changeset
|
486 fh = None |
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parents:
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diff
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|
487 fp_ = None |
21074
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diff
changeset
|
488 filename = None |
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diff
changeset
|
489 try: |
f8a0d82b0463
httppeer: support for _calltwowaystream
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parents:
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diff
changeset
|
490 # dump bundle to disk |
38164
aac4be30e250
py3: wrap tempfile.mkstemp() to use bytes path
Yuya Nishihara <yuya@tcha.org>
parents:
37832
diff
changeset
|
491 fd, filename = pycompat.mkstemp(prefix="hg-bundle-", suffix=".hg") |
36835
5bc7ff103081
py3: use r'' instead of sysstr('') to get around code transformer
Yuya Nishihara <yuya@tcha.org>
parents:
36430
diff
changeset
|
492 fh = os.fdopen(fd, r"wb") |
21074
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|
493 d = fp.read(4096) |
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diff
changeset
|
494 while d: |
f8a0d82b0463
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diff
changeset
|
495 fh.write(d) |
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diff
changeset
|
496 d = fp.read(4096) |
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changeset
|
497 fh.close() |
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changeset
|
498 # start http push |
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
499 fp_ = httpconnection.httpsendfile(self.ui, filename, "rb") |
36297
a59ff82154b8
httppeer: headers are native strings
Augie Fackler <augie@google.com>
parents:
36270
diff
changeset
|
500 headers = {r'Content-Type': r'application/mercurial-0.1'} |
23086
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parents:
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changeset
|
501 return self._callstream(cmd, data=fp_, headers=headers, **args) |
21074
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diff
changeset
|
502 finally: |
23086
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parents:
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changeset
|
503 if fp_ is not None: |
cde6904f1992
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
504 fp_.close() |
21074
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changeset
|
505 if fh is not None: |
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diff
changeset
|
506 fh.close() |
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changeset
|
507 os.unlink(filename) |
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parents:
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diff
changeset
|
508 |
20905
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
18742
diff
changeset
|
509 def _callcompressable(self, cmd, **args): |
30464
e16e234b9ca3
httppeer: do decompression inside _callstream
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30241
diff
changeset
|
510 return self._callstream(cmd, _compressible=True, **args) |
11370 | 511 |
21188
d36440d84328
httppeer: reintroduce _abort that accidentally was removed in 167047ba3cfa
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
512 def _abort(self, exception): |
d36440d84328
httppeer: reintroduce _abort that accidentally was removed in 167047ba3cfa
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
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|
513 raise exception |
d36440d84328
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parents:
21074
diff
changeset
|
514 |
40024
86b22a4cfab1
wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40019
diff
changeset
|
515 def sendv2request(ui, opener, requestbuilder, apiurl, permission, requests, |
86b22a4cfab1
wireprotov2: client support for advertising redirect targets
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diff
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|
516 redirect): |
40133
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parents:
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diff
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|
517 wireprotoframing.populatestreamencoders() |
762ef19a07e3
wireprotov2: send protocol settings frame from client
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parents:
40129
diff
changeset
|
518 |
762ef19a07e3
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parents:
40129
diff
changeset
|
519 uiencoders = ui.configlist(b'experimental', b'httppeer.v2-encoder-order') |
762ef19a07e3
wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40129
diff
changeset
|
520 |
762ef19a07e3
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parents:
40129
diff
changeset
|
521 if uiencoders: |
762ef19a07e3
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diff
changeset
|
522 encoders = [] |
762ef19a07e3
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parents:
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diff
changeset
|
523 |
762ef19a07e3
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parents:
40129
diff
changeset
|
524 for encoder in uiencoders: |
762ef19a07e3
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parents:
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diff
changeset
|
525 if encoder not in wireprotoframing.STREAM_ENCODERS: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
526 ui.warn(_(b'wire protocol version 2 encoder referenced in ' |
762ef19a07e3
wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
527 b'config (%s) is not known; ignoring\n') % encoder) |
762ef19a07e3
wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40129
diff
changeset
|
528 else: |
762ef19a07e3
wireprotov2: send protocol settings frame from client
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parents:
40129
diff
changeset
|
529 encoders.append(encoder) |
762ef19a07e3
wireprotov2: send protocol settings frame from client
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parents:
40129
diff
changeset
|
530 |
762ef19a07e3
wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40129
diff
changeset
|
531 else: |
762ef19a07e3
wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40129
diff
changeset
|
532 encoders = wireprotoframing.STREAM_ENCODERS_ORDER |
762ef19a07e3
wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40129
diff
changeset
|
533 |
40129
293835e0fff7
wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40034
diff
changeset
|
534 reactor = wireprotoframing.clientreactor(ui, |
293835e0fff7
wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40034
diff
changeset
|
535 hasmultiplesend=False, |
40133
762ef19a07e3
wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40129
diff
changeset
|
536 buffersends=True, |
762ef19a07e3
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
40129
diff
changeset
|
537 clientcontentencoders=encoders) |
37651
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httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
538 |
40026
7e807b8a9e56
wireprotov2: client support for following content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40024
diff
changeset
|
539 handler = wireprotov2peer.clienthandler(ui, reactor, |
7e807b8a9e56
wireprotov2: client support for following content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40024
diff
changeset
|
540 opener=opener, |
7e807b8a9e56
wireprotov2: client support for following content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40024
diff
changeset
|
541 requestbuilder=requestbuilder) |
37719
a656cba08a04
wireprotov2: move response handling out of httppeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37717
diff
changeset
|
542 |
37651
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parents:
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diff
changeset
|
543 url = '%s/%s' % (apiurl, permission) |
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parents:
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diff
changeset
|
544 |
950294e28136
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parents:
37644
diff
changeset
|
545 if len(requests) > 1: |
950294e28136
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parents:
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diff
changeset
|
546 url += '/multirequest' |
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parents:
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diff
changeset
|
547 else: |
950294e28136
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parents:
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diff
changeset
|
548 url += '/%s' % requests[0][0] |
950294e28136
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parents:
37644
diff
changeset
|
549 |
39436
3fe028b657bf
httppeer: log commands for version 2 peer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
550 ui.debug('sending %d commands\n' % len(requests)) |
37651
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httppeer: implement command executor for version 2 peer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
551 for command, args, f in requests: |
39436
3fe028b657bf
httppeer: log commands for version 2 peer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
552 ui.debug('sending command %s: %s\n' % ( |
3fe028b657bf
httppeer: log commands for version 2 peer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
553 command, stringutil.pprint(args, indent=2))) |
40024
86b22a4cfab1
wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40019
diff
changeset
|
554 assert not list(handler.callcommand(command, args, f, |
86b22a4cfab1
wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40019
diff
changeset
|
555 redirect=redirect)) |
37651
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parents:
37644
diff
changeset
|
556 |
950294e28136
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parents:
37644
diff
changeset
|
557 # TODO stream this. |
37719
a656cba08a04
wireprotov2: move response handling out of httppeer
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parents:
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diff
changeset
|
558 body = b''.join(map(bytes, handler.flushcommands())) |
37651
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httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
559 |
950294e28136
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parents:
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diff
changeset
|
560 # TODO modify user-agent to reflect v2 |
950294e28136
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parents:
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diff
changeset
|
561 headers = { |
950294e28136
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
37644
diff
changeset
|
562 r'Accept': wireprotov2server.FRAMINGTYPE, |
950294e28136
httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
563 r'Content-Type': wireprotov2server.FRAMINGTYPE, |
950294e28136
httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
564 } |
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parents:
37644
diff
changeset
|
565 |
950294e28136
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
37644
diff
changeset
|
566 req = requestbuilder(pycompat.strurl(url), body, headers) |
950294e28136
httppeer: implement command executor for version 2 peer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
567 req.add_unredirected_header(r'Content-Length', r'%d' % len(body)) |
950294e28136
httppeer: implement command executor for version 2 peer
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parents:
37644
diff
changeset
|
568 |
950294e28136
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parents:
37644
diff
changeset
|
569 try: |
950294e28136
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parents:
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diff
changeset
|
570 res = opener.open(req) |
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parents:
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diff
changeset
|
571 except urlerr.httperror as e: |
950294e28136
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parents:
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diff
changeset
|
572 if e.code == 401: |
950294e28136
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parents:
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diff
changeset
|
573 raise error.Abort(_('authorization failed')) |
950294e28136
httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
574 |
950294e28136
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parents:
37644
diff
changeset
|
575 raise |
950294e28136
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parents:
37644
diff
changeset
|
576 except httplib.HTTPException as e: |
950294e28136
httppeer: implement command executor for version 2 peer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37644
diff
changeset
|
577 ui.traceback() |
950294e28136
httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
578 raise IOError(None, e) |
950294e28136
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parents:
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diff
changeset
|
579 |
37719
a656cba08a04
wireprotov2: move response handling out of httppeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37717
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580 return handler, res |
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581 |
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582 class queuedcommandfuture(pycompat.futures.Future): |
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583 """Wraps result() on command futures to trigger submission on call.""" |
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584 |
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585 def result(self, timeout=None): |
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586 if self.done(): |
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587 return pycompat.futures.Future.result(self, timeout) |
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588 |
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589 self._peerexecutor.sendcommands() |
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590 |
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591 # sendcommands() will restore the original __class__ and self.result |
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592 # will resolve to Future.result. |
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593 return self.result(timeout) |
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594 |
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595 @interfaceutil.implementer(repository.ipeercommandexecutor) |
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596 class httpv2executor(object): |
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597 def __init__(self, ui, opener, requestbuilder, apiurl, descriptor, |
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598 redirect): |
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599 self._ui = ui |
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600 self._opener = opener |
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601 self._requestbuilder = requestbuilder |
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602 self._apiurl = apiurl |
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603 self._descriptor = descriptor |
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604 self._redirect = redirect |
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605 self._sent = False |
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606 self._closed = False |
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607 self._neededpermissions = set() |
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608 self._calls = [] |
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609 self._futures = weakref.WeakSet() |
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610 self._responseexecutor = None |
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611 self._responsef = None |
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612 |
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613 def __enter__(self): |
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614 return self |
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615 |
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616 def __exit__(self, exctype, excvalue, exctb): |
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617 self.close() |
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618 |
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619 def callcommand(self, command, args): |
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620 if self._sent: |
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621 raise error.ProgrammingError('callcommand() cannot be used after ' |
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622 'commands are sent') |
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623 |
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624 if self._closed: |
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625 raise error.ProgrammingError('callcommand() cannot be used after ' |
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626 'close()') |
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627 |
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628 # The service advertises which commands are available. So if we attempt |
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629 # to call an unknown command or pass an unknown argument, we can screen |
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630 # for this. |
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631 if command not in self._descriptor['commands']: |
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632 raise error.ProgrammingError( |
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633 'wire protocol command %s is not available' % command) |
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634 |
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635 cmdinfo = self._descriptor['commands'][command] |
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636 unknownargs = set(args.keys()) - set(cmdinfo.get('args', {})) |
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637 |
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638 if unknownargs: |
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639 raise error.ProgrammingError( |
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640 'wire protocol command %s does not accept argument: %s' % ( |
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641 command, ', '.join(sorted(unknownargs)))) |
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642 |
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643 self._neededpermissions |= set(cmdinfo['permissions']) |
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644 |
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645 # TODO we /could/ also validate types here, since the API descriptor |
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646 # includes types... |
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647 |
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648 f = pycompat.futures.Future() |
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649 |
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650 # Monkeypatch it so result() triggers sendcommands(), otherwise result() |
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651 # could deadlock. |
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652 f.__class__ = queuedcommandfuture |
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653 f._peerexecutor = self |
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654 |
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655 self._futures.add(f) |
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656 self._calls.append((command, args, f)) |
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657 |
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658 return f |
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659 |
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660 def sendcommands(self): |
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661 if self._sent: |
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662 return |
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663 |
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664 if not self._calls: |
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665 return |
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666 |
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667 self._sent = True |
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668 |
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669 # Unhack any future types so caller sees a clean type and so we |
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670 # break reference cycle. |
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671 for f in self._futures: |
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672 if isinstance(f, queuedcommandfuture): |
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673 f.__class__ = pycompat.futures.Future |
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674 f._peerexecutor = None |
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675 |
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676 # Mark the future as running and filter out cancelled futures. |
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677 calls = [(command, args, f) |
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678 for command, args, f in self._calls |
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679 if f.set_running_or_notify_cancel()] |
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680 |
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681 # Clear out references, prevent improper object usage. |
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682 self._calls = None |
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683 |
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684 if not calls: |
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685 return |
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686 |
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687 permissions = set(self._neededpermissions) |
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688 |
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689 if 'push' in permissions and 'pull' in permissions: |
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690 permissions.remove('pull') |
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691 |
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692 if len(permissions) > 1: |
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693 raise error.RepoError(_('cannot make request requiring multiple ' |
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694 'permissions: %s') % |
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695 _(', ').join(sorted(permissions))) |
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696 |
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697 permission = { |
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698 'push': 'rw', |
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699 'pull': 'ro', |
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700 }[permissions.pop()] |
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701 |
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702 handler, resp = sendv2request( |
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703 self._ui, self._opener, self._requestbuilder, self._apiurl, |
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704 permission, calls, self._redirect) |
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|
705 |
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|
706 # TODO we probably want to validate the HTTP code, media type, etc. |
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|
707 |
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|
708 self._responseexecutor = pycompat.futures.ThreadPoolExecutor(1) |
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709 self._responsef = self._responseexecutor.submit(self._handleresponse, |
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wireprotov2: move response handling out of httppeer
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diff
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|
710 handler, resp) |
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|
711 |
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changeset
|
712 def close(self): |
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|
713 if self._closed: |
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|
714 return |
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diff
changeset
|
715 |
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diff
changeset
|
716 self.sendcommands() |
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diff
changeset
|
717 |
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diff
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|
718 self._closed = True |
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|
719 |
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|
720 if not self._responsef: |
950294e28136
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parents:
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diff
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|
721 return |
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httppeer: implement command executor for version 2 peer
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parents:
37644
diff
changeset
|
722 |
39437
3c6f7eebc010
httppeer: add TODO about delayed handling of ^C
Gregory Szorc <gregory.szorc@gmail.com>
parents:
39436
diff
changeset
|
723 # TODO ^C here may not result in immediate program termination. |
3c6f7eebc010
httppeer: add TODO about delayed handling of ^C
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diff
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|
724 |
37651
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|
725 try: |
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diff
changeset
|
726 self._responsef.result() |
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diff
changeset
|
727 finally: |
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diff
changeset
|
728 self._responseexecutor.shutdown(wait=True) |
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diff
changeset
|
729 self._responsef = None |
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|
730 self._responseexecutor = None |
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|
731 |
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httppeer: implement command executor for version 2 peer
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changeset
|
732 # If any of our futures are still in progress, mark them as |
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diff
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|
733 # errored, otherwise a result() could wait indefinitely. |
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diff
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|
734 for f in self._futures: |
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parents:
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diff
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|
735 if not f.done(): |
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diff
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|
736 f.set_exception(error.ResponseError( |
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parents:
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diff
changeset
|
737 _('unfulfilled command response'))) |
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|
738 |
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diff
changeset
|
739 self._futures = None |
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diff
changeset
|
740 |
37719
a656cba08a04
wireprotov2: move response handling out of httppeer
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parents:
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diff
changeset
|
741 def _handleresponse(self, handler, resp): |
37651
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diff
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|
742 # Called in a thread to read the response. |
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diff
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|
743 |
40019
f5a05bb48116
wireprotov2: change name and behavior of readframe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40018
diff
changeset
|
744 while handler.readdata(resp): |
37719
a656cba08a04
wireprotov2: move response handling out of httppeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
745 pass |
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|
746 |
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diff
changeset
|
747 # TODO implement interface for version 2 peers |
37810
856f381ad74b
interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
748 @interfaceutil.implementer(repository.ipeerconnection, |
856f381ad74b
interfaceutil: module to stub out zope.interface
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diff
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|
749 repository.ipeercapabilities, |
856f381ad74b
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diff
changeset
|
750 repository.ipeerrequests) |
37483
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diff
changeset
|
751 class httpv2peer(object): |
37558
8a73132214a3
httppeer: support protocol upgrade
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parents:
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diff
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|
752 def __init__(self, ui, repourl, apipath, opener, requestbuilder, |
8a73132214a3
httppeer: support protocol upgrade
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diff
changeset
|
753 apidescriptor): |
37483
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wireproto: crude support for version 2 HTTP peer
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parents:
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diff
changeset
|
754 self.ui = ui |
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diff
changeset
|
755 |
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diff
changeset
|
756 if repourl.endswith('/'): |
61e405fb6372
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diff
changeset
|
757 repourl = repourl[:-1] |
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diff
changeset
|
758 |
37609
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diff
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|
759 self._url = repourl |
37558
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|
760 self._apipath = apipath |
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|
761 self._apiurl = '%s/%s' % (repourl, apipath) |
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|
762 self._opener = opener |
37558
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diff
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|
763 self._requestbuilder = requestbuilder |
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httppeer: support protocol upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
764 self._descriptor = apidescriptor |
37483
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parents:
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diff
changeset
|
765 |
40024
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parents:
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diff
changeset
|
766 self._redirect = wireprotov2peer.supportedredirects(ui, apidescriptor) |
86b22a4cfab1
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diff
changeset
|
767 |
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|
768 # Start of ipeerconnection. |
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changeset
|
769 |
01bfe5ad0c53
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diff
changeset
|
770 def url(self): |
01bfe5ad0c53
httppeer: implement ipeerconnection
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parents:
37558
diff
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|
771 return self._url |
01bfe5ad0c53
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parents:
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diff
changeset
|
772 |
01bfe5ad0c53
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diff
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|
773 def local(self): |
01bfe5ad0c53
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parents:
37558
diff
changeset
|
774 return None |
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diff
changeset
|
775 |
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diff
changeset
|
776 def peer(self): |
01bfe5ad0c53
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diff
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|
777 return self |
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diff
changeset
|
778 |
01bfe5ad0c53
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diff
changeset
|
779 def canpush(self): |
01bfe5ad0c53
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diff
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|
780 # TODO change once implemented. |
01bfe5ad0c53
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diff
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|
781 return False |
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diff
changeset
|
782 |
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changeset
|
783 def close(self): |
40034
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httppeer: report http statistics
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40026
diff
changeset
|
784 self.ui.note(_('(sent %d HTTP requests and %d bytes; ' |
393e44324037
httppeer: report http statistics
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
785 'received %d bytes in responses)\n') % |
393e44324037
httppeer: report http statistics
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parents:
40026
diff
changeset
|
786 (self._opener.requestscount, |
393e44324037
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
40026
diff
changeset
|
787 self._opener.sentbytescount, |
393e44324037
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parents:
40026
diff
changeset
|
788 self._opener.receivedbytescount)) |
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diff
changeset
|
789 |
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|
790 # End of ipeerconnection. |
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diff
changeset
|
791 |
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changeset
|
792 # Start of ipeercapabilities. |
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|
793 |
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diff
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|
794 def capable(self, name): |
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diff
changeset
|
795 # The capabilities used internally historically map to capabilities |
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changeset
|
796 # advertised from the "capabilities" wire protocol command. However, |
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diff
changeset
|
797 # version 2 of that command works differently. |
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diff
changeset
|
798 |
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diff
changeset
|
799 # Maps to commands that are available. |
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changeset
|
800 if name in ('branchmap', 'getbundle', 'known', 'lookup', 'pushkey'): |
ae8730877371
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diff
changeset
|
801 return True |
ae8730877371
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diff
changeset
|
802 |
ae8730877371
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diff
changeset
|
803 # Other concepts. |
39630
9c2c77c73f23
wireprotov2: define and implement "changesetdata" command
Gregory Szorc <gregory.szorc@gmail.com>
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39629
diff
changeset
|
804 if name in ('bundle2'): |
37611
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diff
changeset
|
805 return True |
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diff
changeset
|
806 |
39628
a5de21c9e370
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diff
changeset
|
807 # Alias command-* to presence of command of that name. |
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parents:
39549
diff
changeset
|
808 if name.startswith('command-'): |
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parents:
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diff
changeset
|
809 return name[len('command-'):] in self._descriptor['commands'] |
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diff
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|
810 |
37611
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parents:
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diff
changeset
|
811 return False |
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diff
changeset
|
812 |
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parents:
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diff
changeset
|
813 def requirecap(self, name, purpose): |
ae8730877371
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diff
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|
814 if self.capable(name): |
ae8730877371
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diff
changeset
|
815 return |
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diff
changeset
|
816 |
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diff
changeset
|
817 raise error.CapabilityError( |
ae8730877371
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diff
changeset
|
818 _('cannot %s; client or remote repository does not support the %r ' |
ae8730877371
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diff
changeset
|
819 'capability') % (purpose, name)) |
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diff
changeset
|
820 |
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diff
changeset
|
821 # End of ipeercapabilities. |
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diff
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|
822 |
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parents:
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diff
changeset
|
823 def _call(self, name, **args): |
37651
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diff
changeset
|
824 with self.commandexecutor() as e: |
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parents:
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changeset
|
825 return e.callcommand(name, args).result() |
37543
01361be9e2dc
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37498
diff
changeset
|
826 |
37651
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changeset
|
827 def commandexecutor(self): |
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828 return httpv2executor(self.ui, self._opener, self._requestbuilder, |
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829 self._apiurl, self._descriptor, self._redirect) |
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830 |
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831 # Registry of API service names to metadata about peers that handle it. |
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832 # |
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833 # The following keys are meaningful: |
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834 # |
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835 # init |
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836 # Callable receiving (ui, repourl, servicepath, opener, requestbuilder, |
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837 # apidescriptor) to create a peer. |
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838 # |
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839 # priority |
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840 # Integer priority for the service. If we could choose from multiple |
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841 # services, we choose the one with the highest priority. |
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842 API_PEERS = { |
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843 wireprototypes.HTTP_WIREPROTO_V2: { |
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844 'init': httpv2peer, |
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845 'priority': 50, |
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846 }, |
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847 } |
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848 |
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849 def performhandshake(ui, url, opener, requestbuilder): |
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850 # The handshake is a request to the capabilities command. |
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851 |
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852 caps = None |
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853 def capable(x): |
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854 raise error.ProgrammingError('should not be called') |
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855 |
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856 args = {} |
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857 |
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858 # The client advertises support for newer protocols by adding an |
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859 # X-HgUpgrade-* header with a list of supported APIs and an |
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860 # X-HgProto-* header advertising which serializing formats it supports. |
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861 # We only support the HTTP version 2 transport and CBOR responses for |
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862 # now. |
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863 advertisev2 = ui.configbool('experimental', 'httppeer.advertise-v2') |
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864 |
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|
865 if advertisev2: |
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866 args['headers'] = { |
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867 r'X-HgProto-1': r'cbor', |
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868 } |
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|
869 |
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870 args['headers'].update( |
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|
871 encodevalueinheaders(' '.join(sorted(API_PEERS)), |
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872 'X-HgUpgrade', |
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873 # We don't know the header limit this early. |
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874 # So make it small. |
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|
875 1024)) |
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|
876 |
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877 req, requrl, qs = makev1commandrequest(ui, requestbuilder, caps, |
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878 capable, url, 'capabilities', |
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879 args) |
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880 resp = sendrequest(ui, opener, req) |
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diff
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|
881 |
37832
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diff
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|
882 # The server may redirect us to the repo root, stripping the |
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883 # ?cmd=capabilities query string from the URL. The server would likely |
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884 # return HTML in this case and ``parsev1commandresponse()`` would raise. |
6169d95dce3b
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|
885 # We catch this special case and re-issue the capabilities request against |
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|
886 # the new URL. |
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887 # |
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|
888 # We should ideally not do this, as a redirect that drops the query |
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changeset
|
889 # string from the URL is arguably a server bug. (Garbage in, garbage out). |
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890 # However, Mercurial clients for several years appeared to handle this |
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|
891 # issue without behavior degradation. And according to issue 5860, it may |
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892 # be a longstanding bug in some server implementations. So we allow a |
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893 # redirect that drops the query string to "just work." |
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|
894 try: |
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|
895 respurl, ct, resp = parsev1commandresponse(ui, url, requrl, qs, resp, |
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|
896 compressible=False, |
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|
897 allowcbor=advertisev2) |
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|
898 except RedirectedRepoError as e: |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
899 req, requrl, qs = makev1commandrequest(ui, requestbuilder, caps, |
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|
900 capable, e.respurl, |
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|
901 'capabilities', args) |
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|
902 resp = sendrequest(ui, opener, req) |
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|
903 respurl, ct, resp = parsev1commandresponse(ui, url, requrl, qs, resp, |
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diff
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|
904 compressible=False, |
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|
905 allowcbor=advertisev2) |
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|
906 |
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|
907 try: |
37558
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|
908 rawdata = resp.read() |
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|
909 finally: |
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|
910 resp.close() |
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diff
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|
911 |
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|
912 if not ct.startswith('application/mercurial-'): |
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|
913 raise error.ProgrammingError('unexpected content-type: %s' % ct) |
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|
914 |
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|
915 if advertisev2: |
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changeset
|
916 if ct == 'application/mercurial-cbor': |
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diff
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|
917 try: |
39445
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diff
changeset
|
918 info = cborutil.decodeall(rawdata)[0] |
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diff
changeset
|
919 except cborutil.CBORDecodeError: |
37558
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|
920 raise error.Abort(_('error decoding CBOR from remote server'), |
8a73132214a3
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|
921 hint=_('try again and consider contacting ' |
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diff
changeset
|
922 'the server operator')) |
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|
923 |
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|
924 # We got a legacy response. That's fine. |
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|
925 elif ct in ('application/mercurial-0.1', 'application/mercurial-0.2'): |
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|
926 info = { |
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|
927 'v1capabilities': set(rawdata.split()) |
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|
928 } |
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|
929 |
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diff
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|
930 else: |
8a73132214a3
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|
931 raise error.RepoError( |
8a73132214a3
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diff
changeset
|
932 _('unexpected response type from server: %s') % ct) |
8a73132214a3
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diff
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|
933 else: |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
934 info = { |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
935 'v1capabilities': set(rawdata.split()) |
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|
936 } |
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parents:
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diff
changeset
|
937 |
8a73132214a3
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
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|
938 return respurl, info |
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|
939 |
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changeset
|
940 def makepeer(ui, path, opener=None, requestbuilder=urlreq.request): |
37547
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|
941 """Construct an appropriate HTTP peer instance. |
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|
942 |
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|
943 ``opener`` is an ``url.opener`` that should be used to establish |
6b08cf6b900f
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diff
changeset
|
944 connections, perform HTTP requests. |
6b08cf6b900f
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diff
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945 |
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946 ``requestbuilder`` is the type used for constructing HTTP requests. |
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947 It exists as an argument so extensions can override the default. |
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948 """ |
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949 u = util.url(path) |
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950 if u.query or u.fragment: |
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951 raise error.Abort(_('unsupported URL component: "%s"') % |
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952 (u.query or u.fragment)) |
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953 |
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954 # urllib cannot handle URLs with embedded user or passwd. |
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955 url, authinfo = u.authinfo() |
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956 ui.debug('using %s\n' % url) |
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957 |
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958 opener = opener or urlmod.opener(ui, authinfo) |
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959 |
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960 respurl, info = performhandshake(ui, url, opener, requestbuilder) |
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961 |
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962 # Given the intersection of APIs that both we and the server support, |
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963 # sort by their advertised priority and pick the first one. |
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964 # |
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965 # TODO consider making this request-based and interface driven. For |
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966 # example, the caller could say "I want a peer that does X." It's quite |
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967 # possible that not all peers would do that. Since we know the service |
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968 # capabilities, we could filter out services not meeting the |
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969 # requirements. Possibly by consulting the interfaces defined by the |
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970 # peer type. |
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971 apipeerchoices = set(info.get('apis', {}).keys()) & set(API_PEERS.keys()) |
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972 |
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973 preferredchoices = sorted(apipeerchoices, |
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974 key=lambda x: API_PEERS[x]['priority'], |
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975 reverse=True) |
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976 |
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977 for service in preferredchoices: |
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978 apipath = '%s/%s' % (info['apibase'].rstrip('/'), service) |
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979 |
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980 return API_PEERS[service]['init'](ui, respurl, apipath, opener, |
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981 requestbuilder, |
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982 info['apis'][service]) |
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983 |
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984 # Failed to construct an API peer. Fall back to legacy. |
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985 return httppeer(ui, path, respurl, opener, requestbuilder, |
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986 info['v1capabilities']) |
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987 |
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988 def instance(ui, path, create, intents=None, createopts=None): |
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989 if create: |
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990 raise error.Abort(_('cannot create new http repository')) |
7211 | 991 try: |
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992 if path.startswith('https:') and not urlmod.has_https: |
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993 raise error.Abort(_('Python support for SSL and HTTPS ' |
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994 'is not installed')) |
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995 |
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996 inst = makepeer(ui, path) |
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997 |
7211 | 998 return inst |
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999 except error.RepoError as httpexception: |
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1000 try: |
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1001 r = statichttprepo.instance(ui, "static-" + path, create) |
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1002 ui.note(_('(falling back to static-http)\n')) |
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1003 return r |
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1004 except error.RepoError: |
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1005 raise httpexception # use the original http RepoError instead |