Mercurial > hg
annotate mercurial/sshpeer.py @ 36160:9fd8c2a3db5a
narrowspec: move module into core
Having support for parsing the narrow specification in core is
necessary for moving many other parts of narrow to core.
We do still want to harmonize the narrow spec with the sparse
spec. And the format needs to be documented. But this shouldn't
hold up the code moving to core.
Differential Revision: https://phab.mercurial-scm.org/D2201
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 12 Feb 2018 16:21:34 -0800 |
parents | 223ed0b53f08 |
children | 7218e93ade47 |
rev | line source |
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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 ) |
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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 caps.update(capsline.split(':')[1].split()) |
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317 # Trailing newline. |
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318 stdout.read(1) |
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319 |
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320 # Error if we couldn't find capabilities, this means: |
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321 # |
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322 # 1. Remote isn't a Mercurial server |
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323 # 2. Remote is a <0.9.1 Mercurial server |
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324 # 3. Remote is a future Mercurial server that dropped ``hello`` |
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325 # and other attempted handshake mechanisms. |
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326 if not caps: |
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327 badresponse() |
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328 |
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329 return protoname, caps |
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330 |
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331 class sshv1peer(wireproto.wirepeer): |
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332 def __init__(self, ui, url, proc, stdin, stdout, stderr, caps): |
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333 """Create a peer from an existing SSH connection. |
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334 |
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335 ``proc`` is a handle on the underlying SSH process. |
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336 ``stdin``, ``stdout``, and ``stderr`` are handles on the stdio |
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337 pipes for that process. |
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338 ``caps`` is a set of capabilities supported by the remote. |
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339 """ |
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340 self._url = url |
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341 self._ui = ui |
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342 # self._subprocess is unused. Keeping a handle on the process |
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343 # holds a reference and prevents it from being garbage collected. |
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344 self._subprocess = proc |
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345 self._pipeo = stdin |
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346 self._pipei = stdout |
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347 self._pipee = stderr |
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348 self._caps = caps |
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349 |
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350 # Begin of _basepeer interface. |
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351 |
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352 @util.propertycache |
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353 def ui(self): |
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354 return self._ui |
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355 |
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356 def url(self): |
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357 return self._url |
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358 |
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359 def local(self): |
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360 return None |
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361 |
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362 def peer(self): |
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363 return self |
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364 |
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365 def canpush(self): |
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366 return True |
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367 |
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368 def close(self): |
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369 pass |
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370 |
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371 # End of _basepeer interface. |
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372 |
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373 # Begin of _basewirecommands interface. |
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374 |
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375 def capabilities(self): |
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376 return self._caps |
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377 |
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378 # End of _basewirecommands interface. |
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379 |
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380 def _readerr(self): |
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381 _forwardoutput(self.ui, self._pipee) |
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382 |
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383 def _abort(self, exception): |
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384 self._cleanup() |
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385 raise exception |
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386 |
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387 def _cleanup(self): |
35933
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parents:
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388 _cleanuppipes(self.ui, self._pipei, self._pipeo, self._pipee) |
624
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389 |
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390 __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
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|
391 |
28438
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wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
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|
392 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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393 rsp = self._callstream("batch", cmds=wireproto.encodebatchcmds(req)) |
28438
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394 available = self._getamount() |
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395 # TODO this response parsing is probably suboptimal for large |
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396 # batches with large responses. |
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397 toread = min(available, 1024) |
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398 work = rsp.read(toread) |
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399 available -= toread |
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400 chunk = work |
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|
401 while chunk: |
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402 while ';' in work: |
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|
403 one, work = work.split(';', 1) |
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404 yield wireproto.unescapearg(one) |
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405 toread = min(available, 1024) |
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406 chunk = rsp.read(toread) |
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407 available -= toread |
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|
408 work += chunk |
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|
409 yield wireproto.unescapearg(work) |
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|
410 |
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|
411 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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|
412 args = pycompat.byteskwargs(args) |
35699
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|
413 if (self.ui.debugflag |
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|
414 and self.ui.configbool('devel', 'debug.peer-request')): |
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|
415 dbg = self.ui.debug |
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|
416 line = 'devel-peer-request: %s\n' |
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|
417 dbg(line % cmd) |
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|
418 for key, value in sorted(args.items()): |
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|
419 if not isinstance(value, dict): |
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|
420 dbg(line % ' %s: %d bytes' % (key, len(value))) |
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|
421 else: |
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changeset
|
422 for dk, dv in sorted(value.items()): |
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|
423 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
|
424 self.ui.debug("sending %s command\n" % cmd) |
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|
425 self._pipeo.write("%s\n" % cmd) |
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changeset
|
426 _func, names = wireproto.commands[cmd] |
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|
427 keys = names.split() |
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diff
changeset
|
428 wireargs = {} |
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changeset
|
429 for k in keys: |
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|
430 if k == '*': |
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diff
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|
431 wireargs['*'] = args |
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diff
changeset
|
432 break |
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diff
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|
433 else: |
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diff
changeset
|
434 wireargs[k] = args[k] |
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diff
changeset
|
435 del args[k] |
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diff
changeset
|
436 for k, v in sorted(wireargs.iteritems()): |
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changeset
|
437 self._pipeo.write("%s %d\n" % (k, len(v))) |
13721
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diff
changeset
|
438 if isinstance(v, dict): |
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diff
changeset
|
439 for dk, dv in v.iteritems(): |
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|
440 self._pipeo.write("%s %d\n" % (dk, len(dv))) |
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changeset
|
441 self._pipeo.write(dv) |
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changeset
|
442 else: |
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changeset
|
443 self._pipeo.write(v) |
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diff
changeset
|
444 self._pipeo.flush() |
624
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Add an sshrepository class and hg serve --stdio
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|
445 |
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changeset
|
446 return self._pipei |
624
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Add an sshrepository class and hg serve --stdio
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623
diff
changeset
|
447 |
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
|
448 def _callcompressable(self, cmd, **args): |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
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parents:
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diff
changeset
|
449 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
|
450 |
11589
e8d22fe2ddab
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parents:
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diff
changeset
|
451 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
|
452 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
|
453 return self._recv() |
7939c71f3132
sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5293
diff
changeset
|
454 |
11592
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
455 def _callpush(self, cmd, fp, **args): |
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
456 r = self._call(cmd, **args) |
26e0782b8380
protocol: unify client unbundle support
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parents:
11591
diff
changeset
|
457 if r: |
26e0782b8380
protocol: unify client unbundle support
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parents:
11591
diff
changeset
|
458 return '', r |
29727
0dbd788a2dfd
sshpeer: use `iter(callable, sentinel)` instead of while True
Augie Fackler <augie@google.com>
parents:
29389
diff
changeset
|
459 for d in iter(lambda: fp.read(4096), ''): |
11592
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
460 self._send(d) |
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
461 self._send("", flush=True) |
26e0782b8380
protocol: unify client unbundle support
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11591
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462 r = self._recv() |
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protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
463 if r: |
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diff
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|
464 return '', r |
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parents:
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diff
changeset
|
465 return self._recv(), '' |
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protocol: unify client unbundle support
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parents:
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diff
changeset
|
466 |
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467 def _calltwowaystream(self, cmd, fp, **args): |
83ce71ef7804
sshpeer: add implementation of _calltwowaystream
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468 r = self._call(cmd, **args) |
83ce71ef7804
sshpeer: add implementation of _calltwowaystream
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parents:
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diff
changeset
|
469 if r: |
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sshpeer: add implementation of _calltwowaystream
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parents:
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diff
changeset
|
470 # XXX needs to be made better |
29389
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i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents:
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diff
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471 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
|
472 for d in iter(lambda: fp.read(4096), ''): |
21073
83ce71ef7804
sshpeer: add implementation of _calltwowaystream
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parents:
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diff
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473 self._send(d) |
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|
474 self._send("", flush=True) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
475 return self._pipei |
11591
0d9cb3f3b0a1
protocol: unify client changegroup methods
Matt Mackall <mpm@selenic.com>
parents:
11590
diff
changeset
|
476 |
28438
48fd02dac1d4
wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
27798
diff
changeset
|
477 def _getamount(self): |
33768
82d564d5ac4f
sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
478 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:
14537
diff
changeset
|
479 if l == '\n': |
33768
82d564d5ac4f
sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
480 self._readerr() |
25243
d65243d28749
sshpeer: break "OutOfBandError" feature for ssh (BC)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23684
diff
changeset
|
481 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
|
482 self._abort(error.OutOfBandError(hint=msg)) |
33768
82d564d5ac4f
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
483 self._readerr() |
646
342927da4f4c
Show remote client output with "remote:"
Matt Mackall <mpm@selenic.com>
parents:
644
diff
changeset
|
484 try: |
28438
48fd02dac1d4
wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
27798
diff
changeset
|
485 return int(l) |
14004
97ed99d1f419
eliminate various naked except clauses
Idan Kamara <idankk86@gmail.com>
parents:
13827
diff
changeset
|
486 except ValueError: |
11590
0b15aee0a306
protocol: convert some ssh abort calls
Matt Mackall <mpm@selenic.com>
parents:
11589
diff
changeset
|
487 self._abort(error.ResponseError(_("unexpected response:"), l)) |
28438
48fd02dac1d4
wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
27798
diff
changeset
|
488 |
48fd02dac1d4
wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents:
27798
diff
changeset
|
489 def _recv(self): |
33768
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parents:
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diff
changeset
|
490 return self._pipei.read(self._getamount()) |
5978
7939c71f3132
sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5293
diff
changeset
|
491 |
7939c71f3132
sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5293
diff
changeset
|
492 def _send(self, data, flush=False): |
33768
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parents:
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diff
changeset
|
493 self._pipeo.write("%d\n" % len(data)) |
5978
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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 if data: |
33768
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
495 self._pipeo.write(data) |
5978
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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
|
496 if flush: |
33768
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diff
changeset
|
497 self._pipeo.flush() |
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parents:
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diff
changeset
|
498 self._readerr() |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2549
diff
changeset
|
499 |
35978
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
500 class sshv2peer(sshv1peer): |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
501 """A peer that speakers version 2 of the transport protocol.""" |
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parents:
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diff
changeset
|
502 # Currently version 2 is identical to version 1 post handshake. |
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parents:
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diff
changeset
|
503 # And handshake is performed before the peer is instantiated. So |
59e4a7781a36
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parents:
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diff
changeset
|
504 # we need no custom code. |
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parents:
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diff
changeset
|
505 |
35928
b0d2885c5945
sshpeer: make "instance" a function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35699
diff
changeset
|
506 def instance(ui, path, create): |
35931
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
507 """Create an SSH peer. |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
508 |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
509 The returned object conforms to the ``wireproto.wirepeer`` interface. |
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 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
|
512 if u.scheme != 'ssh' or not u.host or u.path is None: |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
513 raise error.RepoError(_("couldn't parse location %s") % path) |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
514 |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
515 util.checksafessh(path) |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
516 |
b202d360d2a4
sshpeer: move URL validation out of sshpeer.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35928
diff
changeset
|
517 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
|
518 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
|
519 |
35932
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
520 sshcmd = ui.config('ui', 'ssh') |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
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parents:
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diff
changeset
|
521 remotecmd = ui.config('ui', 'remotecmd') |
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
|
522 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
|
523 sshenv = util.shellenviron(sshaddenv) |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
524 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
|
525 |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
526 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
|
527 |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
528 if create: |
31449baf0936
sshpeer: move ssh command and repo creation logic out of __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35931
diff
changeset
|
529 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
|
530 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
|
531 (_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
|
532 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
|
533 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
|
534 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
|
535 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
|
536 |
35935
00b9e26d727b
sshpeer: establish SSH connection before class instantiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35934
diff
changeset
|
537 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
|
538 remotepath, sshenv) |
00b9e26d727b
sshpeer: establish SSH connection before class instantiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35934
diff
changeset
|
539 |
35938
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
540 try: |
35978
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
541 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
|
542 except Exception: |
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
543 _cleanuppipes(ui, stdout, stdin, stderr) |
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
544 raise |
80a2b8ae42a1
sshpeer: move handshake outside of sshpeer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35937
diff
changeset
|
545 |
35978
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
546 if protoname == wireprotoserver.SSHV1: |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
547 return sshv1peer(ui, path, proc, stdin, stdout, stderr, caps) |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
548 elif protoname == wireprotoserver.SSHV2: |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
549 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:
35977
diff
changeset
|
550 else: |
59e4a7781a36
sshpeer: implement peer for version 2 of wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
551 _cleanuppipes(ui, stdout, stdin, stderr) |
59e4a7781a36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
35977
diff
changeset
|
552 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
|
553 protoname) |