Mercurial > hg
annotate mercurial/sshpeer.py @ 36265:b44fac3a49fb
py3: factor out byterepr() which returns an asciified value on py3
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 17 Feb 2018 18:09:56 +0900 |
parents | 7218e93ade47 |
children | 7f8f74531b0b |
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1 # sshpeer.py - ssh repository proxy class for mercurial |
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2 # |
2859 | 3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import re |
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11 import uuid |
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12 |
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13 from .i18n import _ |
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14 from . import ( |
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15 error, |
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16 pycompat, |
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17 util, |
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18 wireproto, |
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19 wireprotoserver, |
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20 ) |
60 | 21 |
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22 def _serverquote(s): |
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23 """quote a string for the remote shell ... which we assume is sh""" |
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24 if not s: |
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25 return s |
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26 if re.match('[a-zA-Z0-9@%_+=:,./-]*$', s): |
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27 return s |
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28 return "'%s'" % s.replace("'", "'\\''") |
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29 |
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30 def _forwardoutput(ui, pipe): |
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31 """display all data currently available on pipe as remote output. |
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32 |
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33 This is non blocking.""" |
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34 s = util.readpipe(pipe) |
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35 if s: |
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36 for l in s.splitlines(): |
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37 ui.status(_("remote: "), l, '\n') |
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38 |
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39 class doublepipe(object): |
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40 """Operate a side-channel pipe in addition of a main one |
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41 |
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42 The side-channel pipe contains server output to be forwarded to the user |
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43 input. The double pipe will behave as the "main" pipe, but will ensure the |
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44 content of the "side" pipe is properly processed while we wait for blocking |
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45 call on the "main" pipe. |
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46 |
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47 If large amounts of data are read from "main", the forward will cease after |
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48 the first bytes start to appear. This simplifies the implementation |
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49 without affecting actual output of sshpeer too much as we rarely issue |
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50 large read for data not yet emitted by the server. |
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51 |
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52 The main pipe is expected to be a 'bufferedinputpipe' from the util module |
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53 that handle all the os specific bits. This class lives in this module |
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54 because it focus on behavior specific to the ssh protocol.""" |
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55 |
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56 def __init__(self, ui, main, side): |
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57 self._ui = ui |
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58 self._main = main |
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59 self._side = side |
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60 |
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61 def _wait(self): |
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62 """wait until some data are available on main or side |
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63 |
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64 return a pair of boolean (ismainready, issideready) |
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65 |
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66 (This will only wait for data if the setup is supported by `util.poll`) |
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67 """ |
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68 if getattr(self._main, 'hasbuffer', False): # getattr for classic pipe |
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69 return (True, True) # main has data, assume side is worth poking at. |
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70 fds = [self._main.fileno(), self._side.fileno()] |
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71 try: |
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72 act = util.poll(fds) |
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73 except NotImplementedError: |
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74 # non supported yet case, assume all have data. |
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75 act = fds |
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76 return (self._main.fileno() in act, self._side.fileno() in act) |
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77 |
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78 def write(self, data): |
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79 return self._call('write', data) |
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80 |
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81 def read(self, size): |
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82 r = self._call('read', size) |
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83 if size != 0 and not r: |
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84 # We've observed a condition that indicates the |
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85 # stdout closed unexpectedly. Check stderr one |
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86 # more time and snag anything that's there before |
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87 # letting anyone know the main part of the pipe |
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88 # closed prematurely. |
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89 _forwardoutput(self._ui, self._side) |
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90 return r |
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91 |
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92 def readline(self): |
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93 return self._call('readline') |
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94 |
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95 def _call(self, methname, data=None): |
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96 """call <methname> on "main", forward output of "side" while blocking |
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97 """ |
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98 # data can be '' or 0 |
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99 if (data is not None and not data) or self._main.closed: |
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100 _forwardoutput(self._ui, self._side) |
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101 return '' |
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102 while True: |
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103 mainready, sideready = self._wait() |
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104 if sideready: |
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105 _forwardoutput(self._ui, self._side) |
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106 if mainready: |
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107 meth = getattr(self._main, methname) |
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108 if data is None: |
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109 return meth() |
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110 else: |
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111 return meth(data) |
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112 |
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113 def close(self): |
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114 return self._main.close() |
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115 |
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116 def flush(self): |
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117 return self._main.flush() |
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118 |
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119 def _cleanuppipes(ui, pipei, pipeo, pipee): |
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120 """Clean up pipes used by an SSH connection.""" |
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121 if pipeo: |
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122 pipeo.close() |
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123 if pipei: |
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124 pipei.close() |
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125 |
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126 if pipee: |
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127 # Try to read from the err descriptor until EOF. |
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128 try: |
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129 for l in pipee: |
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130 ui.status(_('remote: '), l) |
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131 except (IOError, ValueError): |
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132 pass |
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133 |
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134 pipee.close() |
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135 |
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136 def _makeconnection(ui, sshcmd, args, remotecmd, path, sshenv=None): |
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137 """Create an SSH connection to a server. |
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138 |
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139 Returns a tuple of (process, stdin, stdout, stderr) for the |
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140 spawned process. |
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141 """ |
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142 cmd = '%s %s %s' % ( |
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143 sshcmd, |
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144 args, |
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145 util.shellquote('%s -R %s serve --stdio' % ( |
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146 _serverquote(remotecmd), _serverquote(path)))) |
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147 |
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148 ui.debug('running %s\n' % cmd) |
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149 cmd = util.quotecommand(cmd) |
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150 |
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151 # no buffer allow the use of 'select' |
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152 # feel free to remove buffering and select usage when we ultimately |
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153 # move to threading. |
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154 stdin, stdout, stderr, proc = util.popen4(cmd, bufsize=0, env=sshenv) |
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155 |
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156 stdout = doublepipe(ui, util.bufferedinputpipe(stdout), stderr) |
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157 stdin = doublepipe(ui, stdin, stderr) |
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158 |
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159 return proc, stdin, stdout, stderr |
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160 |
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161 def _performhandshake(ui, stdin, stdout, stderr): |
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162 def badresponse(): |
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163 msg = _('no suitable response from remote hg') |
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164 hint = ui.config('ui', 'ssherrorhint') |
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165 raise error.RepoError(msg, hint=hint) |
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166 |
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167 # The handshake consists of sending wire protocol commands in reverse |
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168 # order of protocol implementation and then sniffing for a response |
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169 # to one of them. |
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170 # |
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171 # Those commands (from oldest to newest) are: |
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172 # |
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173 # ``between`` |
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174 # Asks for the set of revisions between a pair of revisions. Command |
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175 # present in all Mercurial server implementations. |
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176 # |
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177 # ``hello`` |
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178 # Instructs the server to advertise its capabilities. Introduced in |
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179 # Mercurial 0.9.1. |
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180 # |
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181 # ``upgrade`` |
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182 # Requests upgrade from default transport protocol version 1 to |
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183 # a newer version. Introduced in Mercurial 4.6 as an experimental |
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184 # feature. |
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185 # |
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186 # The ``between`` command is issued with a request for the null |
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187 # range. If the remote is a Mercurial server, this request will |
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188 # generate a specific response: ``1\n\n``. This represents the |
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189 # wire protocol encoded value for ``\n``. We look for ``1\n\n`` |
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190 # in the output stream and know this is the response to ``between`` |
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191 # and we're at the end of our handshake reply. |
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192 # |
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193 # The response to the ``hello`` command will be a line with the |
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194 # length of the value returned by that command followed by that |
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195 # value. If the server doesn't support ``hello`` (which should be |
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196 # rare), that line will be ``0\n``. Otherwise, the value will contain |
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197 # RFC 822 like lines. Of these, the ``capabilities:`` line contains |
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198 # the capabilities of the server. |
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199 # |
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200 # The ``upgrade`` command isn't really a command in the traditional |
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201 # sense of version 1 of the transport because it isn't using the |
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202 # proper mechanism for formatting insteads: instead, it just encodes |
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203 # arguments on the line, delimited by spaces. |
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204 # |
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205 # The ``upgrade`` line looks like ``upgrade <token> <capabilities>``. |
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206 # If the server doesn't support protocol upgrades, it will reply to |
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207 # this line with ``0\n``. Otherwise, it emits an |
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208 # ``upgraded <token> <protocol>`` line to both stdout and stderr. |
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209 # Content immediately following this line describes additional |
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210 # protocol and server state. |
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211 # |
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212 # In addition to the responses to our command requests, the server |
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213 # may emit "banner" output on stdout. SSH servers are allowed to |
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214 # print messages to stdout on login. Issuing commands on connection |
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215 # allows us to flush this banner output from the server by scanning |
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216 # for output to our well-known ``between`` command. Of course, if |
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217 # the banner contains ``1\n\n``, this will throw off our detection. |
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218 |
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219 requestlog = ui.configbool('devel', 'debug.peer-request') |
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220 |
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221 # Generate a random token to help identify responses to version 2 |
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222 # upgrade request. |
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223 token = pycompat.sysbytes(str(uuid.uuid4())) |
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224 upgradecaps = [ |
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225 ('proto', wireprotoserver.SSHV2), |
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226 ] |
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227 upgradecaps = util.urlreq.urlencode(upgradecaps) |
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228 |
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229 try: |
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230 pairsarg = '%s-%s' % ('0' * 40, '0' * 40) |
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231 handshake = [ |
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232 'hello\n', |
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233 'between\n', |
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234 'pairs %d\n' % len(pairsarg), |
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235 pairsarg, |
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236 ] |
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237 |
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238 # Request upgrade to version 2 if configured. |
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239 if ui.configbool('experimental', 'sshpeer.advertise-v2'): |
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240 ui.debug('sending upgrade request: %s %s\n' % (token, upgradecaps)) |
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241 handshake.insert(0, 'upgrade %s %s\n' % (token, upgradecaps)) |
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242 |
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243 if requestlog: |
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244 ui.debug('devel-peer-request: hello\n') |
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245 ui.debug('sending hello command\n') |
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246 if requestlog: |
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247 ui.debug('devel-peer-request: between\n') |
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248 ui.debug('devel-peer-request: pairs: %d bytes\n' % len(pairsarg)) |
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249 ui.debug('sending between command\n') |
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250 |
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251 stdin.write(''.join(handshake)) |
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252 stdin.flush() |
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253 except IOError: |
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254 badresponse() |
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255 |
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256 # Assume version 1 of wire protocol by default. |
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257 protoname = wireprotoserver.SSHV1 |
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258 reupgraded = re.compile(b'^upgraded %s (.*)$' % re.escape(token)) |
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259 |
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260 lines = ['', 'dummy'] |
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261 max_noise = 500 |
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262 while lines[-1] and max_noise: |
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263 try: |
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264 l = stdout.readline() |
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265 _forwardoutput(ui, stderr) |
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266 |
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267 # Look for reply to protocol upgrade request. It has a token |
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268 # in it, so there should be no false positives. |
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269 m = reupgraded.match(l) |
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270 if m: |
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271 protoname = m.group(1) |
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272 ui.debug('protocol upgraded to %s\n' % protoname) |
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273 # If an upgrade was handled, the ``hello`` and ``between`` |
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274 # requests are ignored. The next output belongs to the |
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275 # protocol, so stop scanning lines. |
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276 break |
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277 |
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278 # Otherwise it could be a banner, ``0\n`` response if server |
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279 # doesn't support upgrade. |
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280 |
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281 if lines[-1] == '1\n' and l == '\n': |
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282 break |
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283 if l: |
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284 ui.debug('remote: ', l) |
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285 lines.append(l) |
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286 max_noise -= 1 |
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287 except IOError: |
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288 badresponse() |
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289 else: |
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290 badresponse() |
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291 |
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292 caps = set() |
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293 |
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294 # For version 1, we should see a ``capabilities`` line in response to the |
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295 # ``hello`` command. |
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296 if protoname == wireprotoserver.SSHV1: |
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297 for l in reversed(lines): |
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298 # Look for response to ``hello`` command. Scan from the back so |
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299 # we don't misinterpret banner output as the command reply. |
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300 if l.startswith('capabilities:'): |
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301 caps.update(l[:-1].split(':')[1].split()) |
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302 break |
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303 elif protoname == wireprotoserver.SSHV2: |
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304 # We see a line with number of bytes to follow and then a value |
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305 # looking like ``capabilities: *``. |
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306 line = stdout.readline() |
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307 try: |
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308 valuelen = int(line) |
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309 except ValueError: |
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310 badresponse() |
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311 |
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312 capsline = stdout.read(valuelen) |
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313 if not capsline.startswith('capabilities: '): |
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314 badresponse() |
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315 |
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316 ui.debug('remote: %s\n' % capsline) |
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317 |
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318 caps.update(capsline.split(':')[1].split()) |
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319 # Trailing newline. |
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320 stdout.read(1) |
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321 |
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322 # Error if we couldn't find capabilities, this means: |
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323 # |
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324 # 1. Remote isn't a Mercurial server |
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325 # 2. Remote is a <0.9.1 Mercurial server |
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326 # 3. Remote is a future Mercurial server that dropped ``hello`` |
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327 # and other attempted handshake mechanisms. |
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328 if not caps: |
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329 badresponse() |
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330 |
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331 return protoname, caps |
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332 |
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333 class sshv1peer(wireproto.wirepeer): |
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334 def __init__(self, ui, url, proc, stdin, stdout, stderr, caps): |
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335 """Create a peer from an existing SSH connection. |
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336 |
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337 ``proc`` is a handle on the underlying SSH process. |
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338 ``stdin``, ``stdout``, and ``stderr`` are handles on the stdio |
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339 pipes for that process. |
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340 ``caps`` is a set of capabilities supported by the remote. |
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341 """ |
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342 self._url = url |
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343 self._ui = ui |
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344 # self._subprocess is unused. Keeping a handle on the process |
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345 # holds a reference and prevents it from being garbage collected. |
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346 self._subprocess = proc |
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347 self._pipeo = stdin |
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348 self._pipei = stdout |
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349 self._pipee = stderr |
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350 self._caps = caps |
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351 |
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352 # Begin of _basepeer interface. |
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353 |
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354 @util.propertycache |
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355 def ui(self): |
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356 return self._ui |
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357 |
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358 def url(self): |
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359 return self._url |
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360 |
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361 def local(self): |
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362 return None |
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363 |
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364 def peer(self): |
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365 return self |
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366 |
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367 def canpush(self): |
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368 return True |
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369 |
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370 def close(self): |
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371 pass |
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372 |
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373 # End of _basepeer interface. |
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374 |
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375 # Begin of _basewirecommands interface. |
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376 |
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377 def capabilities(self): |
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378 return self._caps |
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379 |
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380 # End of _basewirecommands interface. |
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381 |
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382 def _readerr(self): |
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383 _forwardoutput(self.ui, self._pipee) |
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384 |
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385 def _abort(self, exception): |
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386 self._cleanup() |
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387 raise exception |
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388 |
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389 def _cleanup(self): |
35933
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parents:
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390 _cleanuppipes(self.ui, self._pipei, self._pipeo, self._pipee) |
624
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391 |
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|
392 __del__ = _cleanup |
3034
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sshrepo: flush stderr before connecting to the hg server
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
2859
diff
changeset
|
393 |
28438
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wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
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diff
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|
394 def _submitbatch(self, req): |
29733
bb04f96df51c
wireproto: consolidate code for obtaining "cmds" argument value
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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395 rsp = self._callstream("batch", cmds=wireproto.encodebatchcmds(req)) |
28438
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396 available = self._getamount() |
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397 # TODO this response parsing is probably suboptimal for large |
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398 # batches with large responses. |
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399 toread = min(available, 1024) |
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400 work = rsp.read(toread) |
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401 available -= toread |
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402 chunk = work |
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|
403 while chunk: |
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|
404 while ';' in work: |
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|
405 one, work = work.split(';', 1) |
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|
406 yield wireproto.unescapearg(one) |
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|
407 toread = min(available, 1024) |
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|
408 chunk = rsp.read(toread) |
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|
409 available -= toread |
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|
410 work += chunk |
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|
411 yield wireproto.unescapearg(work) |
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|
412 |
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|
413 def _callstream(self, cmd, **args): |
33100
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py3: use pycompat.byteskwargs() to convert kwargs' keys to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
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diff
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|
414 args = pycompat.byteskwargs(args) |
35699
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parents:
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|
415 if (self.ui.debugflag |
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|
416 and self.ui.configbool('devel', 'debug.peer-request')): |
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|
417 dbg = self.ui.debug |
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|
418 line = 'devel-peer-request: %s\n' |
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|
419 dbg(line % cmd) |
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|
420 for key, value in sorted(args.items()): |
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|
421 if not isinstance(value, dict): |
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|
422 dbg(line % ' %s: %d bytes' % (key, len(value))) |
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|
423 else: |
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diff
changeset
|
424 for dk, dv in sorted(value.items()): |
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diff
changeset
|
425 dbg(line % ' %s-%s: %d' % (key, dk, len(dv))) |
9467
4c041f1ee1b4
do not attempt to translate ui.debug output
Martin Geisler <mg@lazybytes.net>
parents:
8563
diff
changeset
|
426 self.ui.debug("sending %s command\n" % cmd) |
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|
427 self._pipeo.write("%s\n" % cmd) |
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changeset
|
428 _func, names = wireproto.commands[cmd] |
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diff
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|
429 keys = names.split() |
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diff
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|
430 wireargs = {} |
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|
431 for k in keys: |
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|
432 if k == '*': |
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diff
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|
433 wireargs['*'] = args |
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diff
changeset
|
434 break |
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diff
changeset
|
435 else: |
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diff
changeset
|
436 wireargs[k] = args[k] |
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diff
changeset
|
437 del args[k] |
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diff
changeset
|
438 for k, v in sorted(wireargs.iteritems()): |
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diff
changeset
|
439 self._pipeo.write("%s %d\n" % (k, len(v))) |
13721
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diff
changeset
|
440 if isinstance(v, dict): |
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diff
changeset
|
441 for dk, dv in v.iteritems(): |
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diff
changeset
|
442 self._pipeo.write("%s %d\n" % (dk, len(dv))) |
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diff
changeset
|
443 self._pipeo.write(dv) |
13721
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diff
changeset
|
444 else: |
33768
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diff
changeset
|
445 self._pipeo.write(v) |
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diff
changeset
|
446 self._pipeo.flush() |
624
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Add an sshrepository class and hg serve --stdio
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parents:
623
diff
changeset
|
447 |
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diff
changeset
|
448 return self._pipei |
624
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Add an sshrepository class and hg serve --stdio
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623
diff
changeset
|
449 |
20905
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20794
diff
changeset
|
450 def _callcompressable(self, cmd, **args): |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
451 return self._callstream(cmd, **args) |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20794
diff
changeset
|
452 |
11589
e8d22fe2ddab
protocol: clean up call-like functions in http and ssh clients
Matt Mackall <mpm@selenic.com>
parents:
11588
diff
changeset
|
453 def _call(self, cmd, **args): |
e8d22fe2ddab
protocol: clean up call-like functions in http and ssh clients
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parents:
11588
diff
changeset
|
454 self._callstream(cmd, **args) |
5978
7939c71f3132
sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5293
diff
changeset
|
455 return self._recv() |
7939c71f3132
sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5293
diff
changeset
|
456 |
11592
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
457 def _callpush(self, cmd, fp, **args): |
26e0782b8380
protocol: unify client unbundle support
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parents:
11591
diff
changeset
|
458 r = self._call(cmd, **args) |
26e0782b8380
protocol: unify client unbundle support
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parents:
11591
diff
changeset
|
459 if r: |
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
460 return '', r |
29727
0dbd788a2dfd
sshpeer: use `iter(callable, sentinel)` instead of while True
Augie Fackler <augie@google.com>
parents:
29389
diff
changeset
|
461 for d in iter(lambda: fp.read(4096), ''): |
11592
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
462 self._send(d) |
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|
463 self._send("", flush=True) |
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464 r = self._recv() |
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|
465 if r: |
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466 return '', r |
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diff
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|
467 return self._recv(), '' |
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parents:
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|
468 |
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469 def _calltwowaystream(self, cmd, fp, **args): |
83ce71ef7804
sshpeer: add implementation of _calltwowaystream
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470 r = self._call(cmd, **args) |
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471 if r: |
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parents:
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|
472 # XXX needs to be made better |
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i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents:
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|
473 raise error.Abort(_('unexpected remote reply: %s') % r) |
29727
0dbd788a2dfd
sshpeer: use `iter(callable, sentinel)` instead of while True
Augie Fackler <augie@google.com>
parents:
29389
diff
changeset
|
474 for d in iter(lambda: fp.read(4096), ''): |
21073
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sshpeer: add implementation of _calltwowaystream
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changeset
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475 self._send(d) |
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|
476 self._send("", flush=True) |
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parents:
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diff
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|
477 return self._pipei |
11591
0d9cb3f3b0a1
protocol: unify client changegroup methods
Matt Mackall <mpm@selenic.com>
parents:
11590
diff
changeset
|
478 |
28438
48fd02dac1d4
wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
479 def _getamount(self): |
33768
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sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
480 l = self._pipei.readline() |
15017
f4522df38c65
wireproto: add out-of-band error class to allow remote repo to report errors
Andrew Pritchard <andrewp@fogcreek.com>
parents:
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diff
changeset
|
481 if l == '\n': |
33768
82d564d5ac4f
sshpeer: make instance attributes and methods internal
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parents:
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diff
changeset
|
482 self._readerr() |
25243
d65243d28749
sshpeer: break "OutOfBandError" feature for ssh (BC)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23684
diff
changeset
|
483 msg = _('check previous remote output') |
d65243d28749
sshpeer: break "OutOfBandError" feature for ssh (BC)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23684
diff
changeset
|
484 self._abort(error.OutOfBandError(hint=msg)) |
33768
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
485 self._readerr() |
646
342927da4f4c
Show remote client output with "remote:"
Matt Mackall <mpm@selenic.com>
parents:
644
diff
changeset
|
486 try: |
28438
48fd02dac1d4
wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
487 return int(l) |
14004
97ed99d1f419
eliminate various naked except clauses
Idan Kamara <idankk86@gmail.com>
parents:
13827
diff
changeset
|
488 except ValueError: |
11590
0b15aee0a306
protocol: convert some ssh abort calls
Matt Mackall <mpm@selenic.com>
parents:
11589
diff
changeset
|
489 self._abort(error.ResponseError(_("unexpected response:"), l)) |
28438
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wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
27798
diff
changeset
|
490 |
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
491 def _recv(self): |
33768
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492 return self._pipei.read(self._getamount()) |
5978
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sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5293
diff
changeset
|
493 |
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sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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diff
changeset
|
494 def _send(self, data, flush=False): |
33768
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diff
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|
495 self._pipeo.write("%d\n" % len(data)) |
5978
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diff
changeset
|
496 if data: |
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parents:
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diff
changeset
|
497 self._pipeo.write(data) |
5978
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498 if flush: |
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|
499 self._pipeo.flush() |
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diff
changeset
|
500 self._readerr() |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2549
diff
changeset
|
501 |
35978
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
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parents:
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diff
changeset
|
502 class sshv2peer(sshv1peer): |
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parents:
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diff
changeset
|
503 """A peer that speakers version 2 of the transport protocol.""" |
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diff
changeset
|
504 # Currently version 2 is identical to version 1 post handshake. |
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parents:
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diff
changeset
|
505 # And handshake is performed before the peer is instantiated. So |
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parents:
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diff
changeset
|
506 # we need no custom code. |
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diff
changeset
|
507 |
35928
b0d2885c5945
sshpeer: make "instance" a function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35699
diff
changeset
|
508 def instance(ui, path, create): |
35931
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
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parents:
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diff
changeset
|
509 """Create an SSH peer. |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
510 |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
511 The returned object conforms to the ``wireproto.wirepeer`` interface. |
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sshpeer: move URL validation out of sshpeer.__init__
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parents:
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diff
changeset
|
512 """ |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
513 u = util.url(path, parsequery=False, parsefragment=False) |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
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parents:
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diff
changeset
|
514 if u.scheme != 'ssh' or not u.host or u.path is None: |
b202d360d2a4
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parents:
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diff
changeset
|
515 raise error.RepoError(_("couldn't parse location %s") % path) |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
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parents:
35928
diff
changeset
|
516 |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
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parents:
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diff
changeset
|
517 util.checksafessh(path) |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
518 |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
519 if u.passwd is not None: |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
520 raise error.RepoError(_('password in URL not supported')) |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
521 |
35932
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
522 sshcmd = ui.config('ui', 'ssh') |
31449baf0936
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parents:
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diff
changeset
|
523 remotecmd = ui.config('ui', 'remotecmd') |
31449baf0936
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
524 sshaddenv = dict(ui.configitems('sshenv')) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
525 sshenv = util.shellenviron(sshaddenv) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
526 remotepath = u.path or '.' |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
527 |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
528 args = util.sshargs(sshcmd, u.host, u.user, u.port) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
529 |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
530 if create: |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
531 cmd = '%s %s %s' % (sshcmd, args, |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
532 util.shellquote('%s init %s' % |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
533 (_serverquote(remotecmd), _serverquote(remotepath)))) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
534 ui.debug('running %s\n' % cmd) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
535 res = ui.system(cmd, blockedtag='sshpeer', environ=sshenv) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
536 if res != 0: |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
537 raise error.RepoError(_('could not create remote repo')) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
538 |
35935
00b9e26d727b
sshpeer: establish SSH connection before class instantiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35934
diff
changeset
|
539 proc, stdin, stdout, stderr = _makeconnection(ui, sshcmd, args, remotecmd, |
00b9e26d727b
sshpeer: establish SSH connection before class instantiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35934
diff
changeset
|
540 remotepath, sshenv) |
00b9e26d727b
sshpeer: establish SSH connection before class instantiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35934
diff
changeset
|
541 |
35938
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
542 try: |
35978
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
543 protoname, caps = _performhandshake(ui, stdin, stdout, stderr) |
35938
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
544 except Exception: |
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
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parents:
35937
diff
changeset
|
545 _cleanuppipes(ui, stdout, stdin, stderr) |
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
546 raise |
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
547 |
35978
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
548 if protoname == wireprotoserver.SSHV1: |
59e4a7781a36
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parents:
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diff
changeset
|
549 return sshv1peer(ui, path, proc, stdin, stdout, stderr, caps) |
59e4a7781a36
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parents:
35977
diff
changeset
|
550 elif protoname == wireprotoserver.SSHV2: |
59e4a7781a36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
551 return sshv2peer(ui, path, proc, stdin, stdout, stderr, caps) |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
552 else: |
59e4a7781a36
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parents:
35977
diff
changeset
|
553 _cleanuppipes(ui, stdout, stdin, stderr) |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
554 raise error.RepoError(_('unknown version of SSH protocol: %s') % |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
555 protoname) |