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@@ -1,1067 +1,1068 b'' | |||
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1 | 1 | # wireproto.py - generic wire protocol support functions |
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2 | 2 | # |
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3 | 3 | # Copyright 2005-2010 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms of the |
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6 | 6 | # GNU General Public License version 2 or any later version. |
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7 | 7 | |
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8 | 8 | from __future__ import absolute_import |
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9 | 9 | |
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10 | 10 | import hashlib |
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11 | 11 | import os |
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12 | 12 | import tempfile |
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13 | 13 | |
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14 | 14 | from .i18n import _ |
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15 | 15 | from .node import ( |
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16 | 16 | bin, |
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17 | 17 | hex, |
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18 | 18 | nullid, |
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19 | 19 | ) |
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20 | 20 | |
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21 | 21 | from . import ( |
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22 | 22 | bundle2, |
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23 | 23 | changegroup as changegroupmod, |
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24 | 24 | discovery, |
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25 | 25 | encoding, |
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26 | 26 | error, |
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27 | 27 | exchange, |
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28 | 28 | peer, |
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29 | 29 | pushkey as pushkeymod, |
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30 | 30 | pycompat, |
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31 | 31 | repository, |
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32 | 32 | streamclone, |
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33 | 33 | util, |
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34 | 34 | ) |
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35 | 35 | |
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36 | 36 | urlerr = util.urlerr |
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37 | 37 | urlreq = util.urlreq |
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38 | 38 | |
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39 | 39 | bundle2requiredmain = _('incompatible Mercurial client; bundle2 required') |
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40 | 40 | bundle2requiredhint = _('see https://www.mercurial-scm.org/wiki/' |
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41 | 41 | 'IncompatibleClient') |
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42 | 42 | bundle2required = '%s\n(%s)\n' % (bundle2requiredmain, bundle2requiredhint) |
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43 | 43 | |
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44 | 44 | class abstractserverproto(object): |
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45 | 45 | """abstract class that summarizes the protocol API |
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46 | 46 | |
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47 | 47 | Used as reference and documentation. |
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48 | 48 | """ |
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49 | 49 | |
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50 | 50 | def getargs(self, args): |
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51 | 51 | """return the value for arguments in <args> |
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52 | 52 | |
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53 | 53 | returns a list of values (same order as <args>)""" |
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54 | 54 | raise NotImplementedError() |
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55 | 55 | |
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56 | 56 | def getfile(self, fp): |
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57 | 57 | """write the whole content of a file into a file like object |
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58 | 58 | |
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59 | 59 | The file is in the form:: |
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60 | 60 | |
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61 | 61 | (<chunk-size>\n<chunk>)+0\n |
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62 | 62 | |
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63 | 63 | chunk size is the ascii version of the int. |
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64 | 64 | """ |
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65 | 65 | raise NotImplementedError() |
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66 | 66 | |
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67 | 67 | def redirect(self): |
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68 | 68 | """may setup interception for stdout and stderr |
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69 | 69 | |
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70 | 70 | See also the `restore` method.""" |
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71 | 71 | raise NotImplementedError() |
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72 | 72 | |
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73 | 73 | # If the `redirect` function does install interception, the `restore` |
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74 | 74 | # function MUST be defined. If interception is not used, this function |
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75 | 75 | # MUST NOT be defined. |
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76 | 76 | # |
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77 | 77 | # left commented here on purpose |
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78 | 78 | # |
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79 | 79 | #def restore(self): |
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80 | 80 | # """reinstall previous stdout and stderr and return intercepted stdout |
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81 | 81 | # """ |
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82 | 82 | # raise NotImplementedError() |
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83 | 83 | |
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84 | 84 | class remoteiterbatcher(peer.iterbatcher): |
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85 | 85 | def __init__(self, remote): |
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86 | 86 | super(remoteiterbatcher, self).__init__() |
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87 | 87 | self._remote = remote |
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88 | 88 | |
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89 | 89 | def __getattr__(self, name): |
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90 | 90 | # Validate this method is batchable, since submit() only supports |
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91 | 91 | # batchable methods. |
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92 | 92 | fn = getattr(self._remote, name) |
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93 | 93 | if not getattr(fn, 'batchable', None): |
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94 | 94 | raise error.ProgrammingError('Attempted to batch a non-batchable ' |
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95 | 95 | 'call to %r' % name) |
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96 | 96 | |
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97 | 97 | return super(remoteiterbatcher, self).__getattr__(name) |
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98 | 98 | |
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99 | 99 | def submit(self): |
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100 | 100 | """Break the batch request into many patch calls and pipeline them. |
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101 | 101 | |
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102 | 102 | This is mostly valuable over http where request sizes can be |
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103 | 103 | limited, but can be used in other places as well. |
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104 | 104 | """ |
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105 | 105 | # 2-tuple of (command, arguments) that represents what will be |
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106 | 106 | # sent over the wire. |
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107 | 107 | requests = [] |
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108 | 108 | |
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109 | 109 | # 4-tuple of (command, final future, @batchable generator, remote |
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110 | 110 | # future). |
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111 | 111 | results = [] |
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112 | 112 | |
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113 | 113 | for command, args, opts, finalfuture in self.calls: |
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114 | 114 | mtd = getattr(self._remote, command) |
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115 | 115 | batchable = mtd.batchable(mtd.__self__, *args, **opts) |
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116 | 116 | |
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117 | 117 | commandargs, fremote = next(batchable) |
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118 | 118 | assert fremote |
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119 | 119 | requests.append((command, commandargs)) |
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120 | 120 | results.append((command, finalfuture, batchable, fremote)) |
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121 | 121 | |
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122 | 122 | if requests: |
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123 | 123 | self._resultiter = self._remote._submitbatch(requests) |
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124 | 124 | |
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125 | 125 | self._results = results |
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126 | 126 | |
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127 | 127 | def results(self): |
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128 | 128 | for command, finalfuture, batchable, remotefuture in self._results: |
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129 | 129 | # Get the raw result, set it in the remote future, feed it |
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130 | 130 | # back into the @batchable generator so it can be decoded, and |
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131 | 131 | # set the result on the final future to this value. |
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132 | 132 | remoteresult = next(self._resultiter) |
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133 | 133 | remotefuture.set(remoteresult) |
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134 | 134 | finalfuture.set(next(batchable)) |
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135 | 135 | |
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136 | 136 | # Verify our @batchable generators only emit 2 values. |
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137 | 137 | try: |
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138 | 138 | next(batchable) |
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139 | 139 | except StopIteration: |
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140 | 140 | pass |
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141 | 141 | else: |
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142 | 142 | raise error.ProgrammingError('%s @batchable generator emitted ' |
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143 | 143 | 'unexpected value count' % command) |
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144 | 144 | |
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145 | 145 | yield finalfuture.value |
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146 | 146 | |
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147 | 147 | # Forward a couple of names from peer to make wireproto interactions |
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148 | 148 | # slightly more sensible. |
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149 | 149 | batchable = peer.batchable |
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150 | 150 | future = peer.future |
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151 | 151 | |
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152 | 152 | # list of nodes encoding / decoding |
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153 | 153 | |
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154 | 154 | def decodelist(l, sep=' '): |
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155 | 155 | if l: |
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156 | 156 | return [bin(v) for v in l.split(sep)] |
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157 | 157 | return [] |
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158 | 158 | |
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159 | 159 | def encodelist(l, sep=' '): |
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160 | 160 | try: |
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161 | 161 | return sep.join(map(hex, l)) |
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162 | 162 | except TypeError: |
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163 | 163 | raise |
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164 | 164 | |
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165 | 165 | # batched call argument encoding |
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166 | 166 | |
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167 | 167 | def escapearg(plain): |
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168 | 168 | return (plain |
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169 | 169 | .replace(':', ':c') |
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170 | 170 | .replace(',', ':o') |
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171 | 171 | .replace(';', ':s') |
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172 | 172 | .replace('=', ':e')) |
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173 | 173 | |
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174 | 174 | def unescapearg(escaped): |
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175 | 175 | return (escaped |
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176 | 176 | .replace(':e', '=') |
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177 | 177 | .replace(':s', ';') |
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178 | 178 | .replace(':o', ',') |
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179 | 179 | .replace(':c', ':')) |
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180 | 180 | |
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181 | 181 | def encodebatchcmds(req): |
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182 | 182 | """Return a ``cmds`` argument value for the ``batch`` command.""" |
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183 | 183 | cmds = [] |
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184 | 184 | for op, argsdict in req: |
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185 | 185 | # Old servers didn't properly unescape argument names. So prevent |
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186 | 186 | # the sending of argument names that may not be decoded properly by |
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187 | 187 | # servers. |
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188 | 188 | assert all(escapearg(k) == k for k in argsdict) |
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189 | 189 | |
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190 | 190 | args = ','.join('%s=%s' % (escapearg(k), escapearg(v)) |
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191 | 191 | for k, v in argsdict.iteritems()) |
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192 | 192 | cmds.append('%s %s' % (op, args)) |
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193 | 193 | |
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194 | 194 | return ';'.join(cmds) |
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195 | 195 | |
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196 | 196 | # mapping of options accepted by getbundle and their types |
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197 | 197 | # |
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198 | 198 | # Meant to be extended by extensions. It is extensions responsibility to ensure |
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199 | 199 | # such options are properly processed in exchange.getbundle. |
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200 | 200 | # |
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201 | 201 | # supported types are: |
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202 | 202 | # |
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203 | 203 | # :nodes: list of binary nodes |
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204 | 204 | # :csv: list of comma-separated values |
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205 | 205 | # :scsv: list of comma-separated values return as set |
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206 | 206 | # :plain: string with no transformation needed. |
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207 | 207 | gboptsmap = {'heads': 'nodes', |
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208 | 208 | 'common': 'nodes', |
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209 | 209 | 'obsmarkers': 'boolean', |
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210 | 210 | 'phases': 'boolean', |
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211 | 211 | 'bundlecaps': 'scsv', |
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212 | 212 | 'listkeys': 'csv', |
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213 | 213 | 'cg': 'boolean', |
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214 | 214 | 'cbattempted': 'boolean'} |
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215 | 215 | |
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216 | 216 | # client side |
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217 | 217 | |
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218 | 218 | class wirepeer(repository.legacypeer): |
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219 | 219 | """Client-side interface for communicating with a peer repository. |
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220 | 220 | |
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221 | 221 | Methods commonly call wire protocol commands of the same name. |
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222 | 222 | |
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223 | 223 | See also httppeer.py and sshpeer.py for protocol-specific |
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224 | 224 | implementations of this interface. |
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225 | 225 | """ |
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226 | 226 | # Begin of basewirepeer interface. |
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227 | 227 | |
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228 | 228 | def iterbatch(self): |
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229 | 229 | return remoteiterbatcher(self) |
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230 | 230 | |
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231 | 231 | @batchable |
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232 | 232 | def lookup(self, key): |
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233 | 233 | self.requirecap('lookup', _('look up remote revision')) |
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234 | 234 | f = future() |
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235 | 235 | yield {'key': encoding.fromlocal(key)}, f |
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236 | 236 | d = f.value |
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237 | 237 | success, data = d[:-1].split(" ", 1) |
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238 | 238 | if int(success): |
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239 | 239 | yield bin(data) |
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240 | 240 | else: |
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241 | 241 | self._abort(error.RepoError(data)) |
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242 | 242 | |
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243 | 243 | @batchable |
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244 | 244 | def heads(self): |
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245 | 245 | f = future() |
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246 | 246 | yield {}, f |
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247 | 247 | d = f.value |
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248 | 248 | try: |
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249 | 249 | yield decodelist(d[:-1]) |
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250 | 250 | except ValueError: |
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251 | 251 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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252 | 252 | |
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253 | 253 | @batchable |
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254 | 254 | def known(self, nodes): |
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255 | 255 | f = future() |
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256 | 256 | yield {'nodes': encodelist(nodes)}, f |
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257 | 257 | d = f.value |
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258 | 258 | try: |
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259 | 259 | yield [bool(int(b)) for b in d] |
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260 | 260 | except ValueError: |
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261 | 261 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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262 | 262 | |
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263 | 263 | @batchable |
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264 | 264 | def branchmap(self): |
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265 | 265 | f = future() |
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266 | 266 | yield {}, f |
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267 | 267 | d = f.value |
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268 | 268 | try: |
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269 | 269 | branchmap = {} |
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270 | 270 | for branchpart in d.splitlines(): |
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271 | 271 | branchname, branchheads = branchpart.split(' ', 1) |
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272 | 272 | branchname = encoding.tolocal(urlreq.unquote(branchname)) |
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273 | 273 | branchheads = decodelist(branchheads) |
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274 | 274 | branchmap[branchname] = branchheads |
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275 | 275 | yield branchmap |
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276 | 276 | except TypeError: |
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277 | 277 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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278 | 278 | |
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279 | 279 | @batchable |
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280 | 280 | def listkeys(self, namespace): |
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281 | 281 | if not self.capable('pushkey'): |
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282 | 282 | yield {}, None |
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283 | 283 | f = future() |
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284 | 284 | self.ui.debug('preparing listkeys for "%s"\n' % namespace) |
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285 | 285 | yield {'namespace': encoding.fromlocal(namespace)}, f |
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286 | 286 | d = f.value |
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287 | 287 | self.ui.debug('received listkey for "%s": %i bytes\n' |
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288 | 288 | % (namespace, len(d))) |
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289 | 289 | yield pushkeymod.decodekeys(d) |
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290 | 290 | |
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291 | 291 | @batchable |
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292 | 292 | def pushkey(self, namespace, key, old, new): |
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293 | 293 | if not self.capable('pushkey'): |
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294 | 294 | yield False, None |
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295 | 295 | f = future() |
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296 | 296 | self.ui.debug('preparing pushkey for "%s:%s"\n' % (namespace, key)) |
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297 | 297 | yield {'namespace': encoding.fromlocal(namespace), |
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298 | 298 | 'key': encoding.fromlocal(key), |
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299 | 299 | 'old': encoding.fromlocal(old), |
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300 | 300 | 'new': encoding.fromlocal(new)}, f |
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301 | 301 | d = f.value |
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302 | 302 | d, output = d.split('\n', 1) |
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303 | 303 | try: |
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304 | 304 | d = bool(int(d)) |
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305 | 305 | except ValueError: |
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306 | 306 | raise error.ResponseError( |
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307 | 307 | _('push failed (unexpected response):'), d) |
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308 | 308 | for l in output.splitlines(True): |
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309 | 309 | self.ui.status(_('remote: '), l) |
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310 | 310 | yield d |
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311 | 311 | |
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312 | 312 | def stream_out(self): |
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313 | 313 | return self._callstream('stream_out') |
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314 | 314 | |
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315 | 315 | def getbundle(self, source, **kwargs): |
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316 | kwargs = pycompat.byteskwargs(kwargs) | |
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316 | 317 | self.requirecap('getbundle', _('look up remote changes')) |
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317 | 318 | opts = {} |
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318 | 319 | bundlecaps = kwargs.get('bundlecaps') |
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319 | 320 | if bundlecaps is not None: |
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320 | 321 | kwargs['bundlecaps'] = sorted(bundlecaps) |
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321 | 322 | else: |
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322 | 323 | bundlecaps = () # kwargs could have it to None |
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323 | 324 | for key, value in kwargs.iteritems(): |
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324 | 325 | if value is None: |
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325 | 326 | continue |
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326 | 327 | keytype = gboptsmap.get(key) |
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327 | 328 | if keytype is None: |
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328 | 329 | raise error.ProgrammingError( |
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329 | 330 | 'Unexpectedly None keytype for key %s' % key) |
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330 | 331 | elif keytype == 'nodes': |
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331 | 332 | value = encodelist(value) |
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332 | 333 | elif keytype in ('csv', 'scsv'): |
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333 | 334 | value = ','.join(value) |
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334 | 335 | elif keytype == 'boolean': |
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335 | 336 | value = '%i' % bool(value) |
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336 | 337 | elif keytype != 'plain': |
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337 | 338 | raise KeyError('unknown getbundle option type %s' |
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338 | 339 | % keytype) |
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339 | 340 | opts[key] = value |
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340 | f = self._callcompressable("getbundle", **opts) | |
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341 | f = self._callcompressable("getbundle", **pycompat.strkwargs(opts)) | |
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341 | 342 | if any((cap.startswith('HG2') for cap in bundlecaps)): |
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342 | 343 | return bundle2.getunbundler(self.ui, f) |
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343 | 344 | else: |
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344 | 345 | return changegroupmod.cg1unpacker(f, 'UN') |
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345 | 346 | |
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346 | 347 | def unbundle(self, cg, heads, url): |
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347 | 348 | '''Send cg (a readable file-like object representing the |
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348 | 349 | changegroup to push, typically a chunkbuffer object) to the |
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349 | 350 | remote server as a bundle. |
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350 | 351 | |
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351 | 352 | When pushing a bundle10 stream, return an integer indicating the |
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352 | 353 | result of the push (see changegroup.apply()). |
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353 | 354 | |
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354 | 355 | When pushing a bundle20 stream, return a bundle20 stream. |
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355 | 356 | |
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356 | 357 | `url` is the url the client thinks it's pushing to, which is |
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357 | 358 | visible to hooks. |
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358 | 359 | ''' |
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359 | 360 | |
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360 | 361 | if heads != ['force'] and self.capable('unbundlehash'): |
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361 | 362 | heads = encodelist(['hashed', |
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362 | 363 | hashlib.sha1(''.join(sorted(heads))).digest()]) |
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363 | 364 | else: |
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364 | 365 | heads = encodelist(heads) |
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365 | 366 | |
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366 | 367 | if util.safehasattr(cg, 'deltaheader'): |
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367 | 368 | # this a bundle10, do the old style call sequence |
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368 | 369 | ret, output = self._callpush("unbundle", cg, heads=heads) |
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369 | 370 | if ret == "": |
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370 | 371 | raise error.ResponseError( |
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371 | 372 | _('push failed:'), output) |
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372 | 373 | try: |
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373 | 374 | ret = int(ret) |
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374 | 375 | except ValueError: |
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375 | 376 | raise error.ResponseError( |
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376 | 377 | _('push failed (unexpected response):'), ret) |
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377 | 378 | |
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378 | 379 | for l in output.splitlines(True): |
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379 | 380 | self.ui.status(_('remote: '), l) |
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380 | 381 | else: |
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381 | 382 | # bundle2 push. Send a stream, fetch a stream. |
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382 | 383 | stream = self._calltwowaystream('unbundle', cg, heads=heads) |
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383 | 384 | ret = bundle2.getunbundler(self.ui, stream) |
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384 | 385 | return ret |
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385 | 386 | |
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386 | 387 | # End of basewirepeer interface. |
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387 | 388 | |
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388 | 389 | # Begin of baselegacywirepeer interface. |
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389 | 390 | |
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390 | 391 | def branches(self, nodes): |
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391 | 392 | n = encodelist(nodes) |
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392 | 393 | d = self._call("branches", nodes=n) |
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393 | 394 | try: |
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394 | 395 | br = [tuple(decodelist(b)) for b in d.splitlines()] |
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395 | 396 | return br |
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396 | 397 | except ValueError: |
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397 | 398 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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398 | 399 | |
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399 | 400 | def between(self, pairs): |
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400 | 401 | batch = 8 # avoid giant requests |
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401 | 402 | r = [] |
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402 | 403 | for i in xrange(0, len(pairs), batch): |
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403 | 404 | n = " ".join([encodelist(p, '-') for p in pairs[i:i + batch]]) |
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404 | 405 | d = self._call("between", pairs=n) |
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405 | 406 | try: |
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406 | 407 | r.extend(l and decodelist(l) or [] for l in d.splitlines()) |
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407 | 408 | except ValueError: |
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408 | 409 | self._abort(error.ResponseError(_("unexpected response:"), d)) |
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409 | 410 | return r |
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410 | 411 | |
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411 | 412 | def changegroup(self, nodes, kind): |
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412 | 413 | n = encodelist(nodes) |
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413 | 414 | f = self._callcompressable("changegroup", roots=n) |
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414 | 415 | return changegroupmod.cg1unpacker(f, 'UN') |
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415 | 416 | |
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416 | 417 | def changegroupsubset(self, bases, heads, kind): |
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417 | 418 | self.requirecap('changegroupsubset', _('look up remote changes')) |
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418 | 419 | bases = encodelist(bases) |
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419 | 420 | heads = encodelist(heads) |
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420 | 421 | f = self._callcompressable("changegroupsubset", |
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421 | 422 | bases=bases, heads=heads) |
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422 | 423 | return changegroupmod.cg1unpacker(f, 'UN') |
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423 | 424 | |
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424 | 425 | # End of baselegacywirepeer interface. |
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425 | 426 | |
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426 | 427 | def _submitbatch(self, req): |
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427 | 428 | """run batch request <req> on the server |
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428 | 429 | |
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429 | 430 | Returns an iterator of the raw responses from the server. |
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430 | 431 | """ |
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431 | 432 | rsp = self._callstream("batch", cmds=encodebatchcmds(req)) |
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432 | 433 | chunk = rsp.read(1024) |
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433 | 434 | work = [chunk] |
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434 | 435 | while chunk: |
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435 | 436 | while ';' not in chunk and chunk: |
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436 | 437 | chunk = rsp.read(1024) |
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437 | 438 | work.append(chunk) |
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438 | 439 | merged = ''.join(work) |
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439 | 440 | while ';' in merged: |
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440 | 441 | one, merged = merged.split(';', 1) |
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441 | 442 | yield unescapearg(one) |
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442 | 443 | chunk = rsp.read(1024) |
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443 | 444 | work = [merged, chunk] |
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444 | 445 | yield unescapearg(''.join(work)) |
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445 | 446 | |
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446 | 447 | def _submitone(self, op, args): |
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447 | return self._call(op, **args) | |
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448 | return self._call(op, **pycompat.strkwargs(args)) | |
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448 | 449 | |
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449 | 450 | def debugwireargs(self, one, two, three=None, four=None, five=None): |
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450 | 451 | # don't pass optional arguments left at their default value |
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451 | 452 | opts = {} |
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452 | 453 | if three is not None: |
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453 | 454 | opts['three'] = three |
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454 | 455 | if four is not None: |
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455 | 456 | opts['four'] = four |
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456 | 457 | return self._call('debugwireargs', one=one, two=two, **opts) |
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457 | 458 | |
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458 | 459 | def _call(self, cmd, **args): |
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459 | 460 | """execute <cmd> on the server |
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460 | 461 | |
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461 | 462 | The command is expected to return a simple string. |
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462 | 463 | |
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463 | 464 | returns the server reply as a string.""" |
|
464 | 465 | raise NotImplementedError() |
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465 | 466 | |
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466 | 467 | def _callstream(self, cmd, **args): |
|
467 | 468 | """execute <cmd> on the server |
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468 | 469 | |
|
469 | 470 | The command is expected to return a stream. Note that if the |
|
470 | 471 | command doesn't return a stream, _callstream behaves |
|
471 | 472 | differently for ssh and http peers. |
|
472 | 473 | |
|
473 | 474 | returns the server reply as a file like object. |
|
474 | 475 | """ |
|
475 | 476 | raise NotImplementedError() |
|
476 | 477 | |
|
477 | 478 | def _callcompressable(self, cmd, **args): |
|
478 | 479 | """execute <cmd> on the server |
|
479 | 480 | |
|
480 | 481 | The command is expected to return a stream. |
|
481 | 482 | |
|
482 | 483 | The stream may have been compressed in some implementations. This |
|
483 | 484 | function takes care of the decompression. This is the only difference |
|
484 | 485 | with _callstream. |
|
485 | 486 | |
|
486 | 487 | returns the server reply as a file like object. |
|
487 | 488 | """ |
|
488 | 489 | raise NotImplementedError() |
|
489 | 490 | |
|
490 | 491 | def _callpush(self, cmd, fp, **args): |
|
491 | 492 | """execute a <cmd> on server |
|
492 | 493 | |
|
493 | 494 | The command is expected to be related to a push. Push has a special |
|
494 | 495 | return method. |
|
495 | 496 | |
|
496 | 497 | returns the server reply as a (ret, output) tuple. ret is either |
|
497 | 498 | empty (error) or a stringified int. |
|
498 | 499 | """ |
|
499 | 500 | raise NotImplementedError() |
|
500 | 501 | |
|
501 | 502 | def _calltwowaystream(self, cmd, fp, **args): |
|
502 | 503 | """execute <cmd> on server |
|
503 | 504 | |
|
504 | 505 | The command will send a stream to the server and get a stream in reply. |
|
505 | 506 | """ |
|
506 | 507 | raise NotImplementedError() |
|
507 | 508 | |
|
508 | 509 | def _abort(self, exception): |
|
509 | 510 | """clearly abort the wire protocol connection and raise the exception |
|
510 | 511 | """ |
|
511 | 512 | raise NotImplementedError() |
|
512 | 513 | |
|
513 | 514 | # server side |
|
514 | 515 | |
|
515 | 516 | # wire protocol command can either return a string or one of these classes. |
|
516 | 517 | class streamres(object): |
|
517 | 518 | """wireproto reply: binary stream |
|
518 | 519 | |
|
519 | 520 | The call was successful and the result is a stream. |
|
520 | 521 | |
|
521 | 522 | Accepts either a generator or an object with a ``read(size)`` method. |
|
522 | 523 | |
|
523 | 524 | ``v1compressible`` indicates whether this data can be compressed to |
|
524 | 525 | "version 1" clients (technically: HTTP peers using |
|
525 | 526 | application/mercurial-0.1 media type). This flag should NOT be used on |
|
526 | 527 | new commands because new clients should support a more modern compression |
|
527 | 528 | mechanism. |
|
528 | 529 | """ |
|
529 | 530 | def __init__(self, gen=None, reader=None, v1compressible=False): |
|
530 | 531 | self.gen = gen |
|
531 | 532 | self.reader = reader |
|
532 | 533 | self.v1compressible = v1compressible |
|
533 | 534 | |
|
534 | 535 | class pushres(object): |
|
535 | 536 | """wireproto reply: success with simple integer return |
|
536 | 537 | |
|
537 | 538 | The call was successful and returned an integer contained in `self.res`. |
|
538 | 539 | """ |
|
539 | 540 | def __init__(self, res): |
|
540 | 541 | self.res = res |
|
541 | 542 | |
|
542 | 543 | class pusherr(object): |
|
543 | 544 | """wireproto reply: failure |
|
544 | 545 | |
|
545 | 546 | The call failed. The `self.res` attribute contains the error message. |
|
546 | 547 | """ |
|
547 | 548 | def __init__(self, res): |
|
548 | 549 | self.res = res |
|
549 | 550 | |
|
550 | 551 | class ooberror(object): |
|
551 | 552 | """wireproto reply: failure of a batch of operation |
|
552 | 553 | |
|
553 | 554 | Something failed during a batch call. The error message is stored in |
|
554 | 555 | `self.message`. |
|
555 | 556 | """ |
|
556 | 557 | def __init__(self, message): |
|
557 | 558 | self.message = message |
|
558 | 559 | |
|
559 | 560 | def getdispatchrepo(repo, proto, command): |
|
560 | 561 | """Obtain the repo used for processing wire protocol commands. |
|
561 | 562 | |
|
562 | 563 | The intent of this function is to serve as a monkeypatch point for |
|
563 | 564 | extensions that need commands to operate on different repo views under |
|
564 | 565 | specialized circumstances. |
|
565 | 566 | """ |
|
566 | 567 | return repo.filtered('served') |
|
567 | 568 | |
|
568 | 569 | def dispatch(repo, proto, command): |
|
569 | 570 | repo = getdispatchrepo(repo, proto, command) |
|
570 | 571 | func, spec = commands[command] |
|
571 | 572 | args = proto.getargs(spec) |
|
572 | 573 | return func(repo, proto, *args) |
|
573 | 574 | |
|
574 | 575 | def options(cmd, keys, others): |
|
575 | 576 | opts = {} |
|
576 | 577 | for k in keys: |
|
577 | 578 | if k in others: |
|
578 | 579 | opts[k] = others[k] |
|
579 | 580 | del others[k] |
|
580 | 581 | if others: |
|
581 | 582 | util.stderr.write("warning: %s ignored unexpected arguments %s\n" |
|
582 | 583 | % (cmd, ",".join(others))) |
|
583 | 584 | return opts |
|
584 | 585 | |
|
585 | 586 | def bundle1allowed(repo, action): |
|
586 | 587 | """Whether a bundle1 operation is allowed from the server. |
|
587 | 588 | |
|
588 | 589 | Priority is: |
|
589 | 590 | |
|
590 | 591 | 1. server.bundle1gd.<action> (if generaldelta active) |
|
591 | 592 | 2. server.bundle1.<action> |
|
592 | 593 | 3. server.bundle1gd (if generaldelta active) |
|
593 | 594 | 4. server.bundle1 |
|
594 | 595 | """ |
|
595 | 596 | ui = repo.ui |
|
596 | 597 | gd = 'generaldelta' in repo.requirements |
|
597 | 598 | |
|
598 | 599 | if gd: |
|
599 | 600 | v = ui.configbool('server', 'bundle1gd.%s' % action) |
|
600 | 601 | if v is not None: |
|
601 | 602 | return v |
|
602 | 603 | |
|
603 | 604 | v = ui.configbool('server', 'bundle1.%s' % action) |
|
604 | 605 | if v is not None: |
|
605 | 606 | return v |
|
606 | 607 | |
|
607 | 608 | if gd: |
|
608 | 609 | v = ui.configbool('server', 'bundle1gd') |
|
609 | 610 | if v is not None: |
|
610 | 611 | return v |
|
611 | 612 | |
|
612 | 613 | return ui.configbool('server', 'bundle1') |
|
613 | 614 | |
|
614 | 615 | def supportedcompengines(ui, proto, role): |
|
615 | 616 | """Obtain the list of supported compression engines for a request.""" |
|
616 | 617 | assert role in (util.CLIENTROLE, util.SERVERROLE) |
|
617 | 618 | |
|
618 | 619 | compengines = util.compengines.supportedwireengines(role) |
|
619 | 620 | |
|
620 | 621 | # Allow config to override default list and ordering. |
|
621 | 622 | if role == util.SERVERROLE: |
|
622 | 623 | configengines = ui.configlist('server', 'compressionengines') |
|
623 | 624 | config = 'server.compressionengines' |
|
624 | 625 | else: |
|
625 | 626 | # This is currently implemented mainly to facilitate testing. In most |
|
626 | 627 | # cases, the server should be in charge of choosing a compression engine |
|
627 | 628 | # because a server has the most to lose from a sub-optimal choice. (e.g. |
|
628 | 629 | # CPU DoS due to an expensive engine or a network DoS due to poor |
|
629 | 630 | # compression ratio). |
|
630 | 631 | configengines = ui.configlist('experimental', |
|
631 | 632 | 'clientcompressionengines') |
|
632 | 633 | config = 'experimental.clientcompressionengines' |
|
633 | 634 | |
|
634 | 635 | # No explicit config. Filter out the ones that aren't supposed to be |
|
635 | 636 | # advertised and return default ordering. |
|
636 | 637 | if not configengines: |
|
637 | 638 | attr = 'serverpriority' if role == util.SERVERROLE else 'clientpriority' |
|
638 | 639 | return [e for e in compengines |
|
639 | 640 | if getattr(e.wireprotosupport(), attr) > 0] |
|
640 | 641 | |
|
641 | 642 | # If compression engines are listed in the config, assume there is a good |
|
642 | 643 | # reason for it (like server operators wanting to achieve specific |
|
643 | 644 | # performance characteristics). So fail fast if the config references |
|
644 | 645 | # unusable compression engines. |
|
645 | 646 | validnames = set(e.name() for e in compengines) |
|
646 | 647 | invalidnames = set(e for e in configengines if e not in validnames) |
|
647 | 648 | if invalidnames: |
|
648 | 649 | raise error.Abort(_('invalid compression engine defined in %s: %s') % |
|
649 | 650 | (config, ', '.join(sorted(invalidnames)))) |
|
650 | 651 | |
|
651 | 652 | compengines = [e for e in compengines if e.name() in configengines] |
|
652 | 653 | compengines = sorted(compengines, |
|
653 | 654 | key=lambda e: configengines.index(e.name())) |
|
654 | 655 | |
|
655 | 656 | if not compengines: |
|
656 | 657 | raise error.Abort(_('%s config option does not specify any known ' |
|
657 | 658 | 'compression engines') % config, |
|
658 | 659 | hint=_('usable compression engines: %s') % |
|
659 | 660 | ', '.sorted(validnames)) |
|
660 | 661 | |
|
661 | 662 | return compengines |
|
662 | 663 | |
|
663 | 664 | # list of commands |
|
664 | 665 | commands = {} |
|
665 | 666 | |
|
666 | 667 | def wireprotocommand(name, args=''): |
|
667 | 668 | """decorator for wire protocol command""" |
|
668 | 669 | def register(func): |
|
669 | 670 | commands[name] = (func, args) |
|
670 | 671 | return func |
|
671 | 672 | return register |
|
672 | 673 | |
|
673 | 674 | @wireprotocommand('batch', 'cmds *') |
|
674 | 675 | def batch(repo, proto, cmds, others): |
|
675 | 676 | repo = repo.filtered("served") |
|
676 | 677 | res = [] |
|
677 | 678 | for pair in cmds.split(';'): |
|
678 | 679 | op, args = pair.split(' ', 1) |
|
679 | 680 | vals = {} |
|
680 | 681 | for a in args.split(','): |
|
681 | 682 | if a: |
|
682 | 683 | n, v = a.split('=') |
|
683 | 684 | vals[unescapearg(n)] = unescapearg(v) |
|
684 | 685 | func, spec = commands[op] |
|
685 | 686 | if spec: |
|
686 | 687 | keys = spec.split() |
|
687 | 688 | data = {} |
|
688 | 689 | for k in keys: |
|
689 | 690 | if k == '*': |
|
690 | 691 | star = {} |
|
691 | 692 | for key in vals.keys(): |
|
692 | 693 | if key not in keys: |
|
693 | 694 | star[key] = vals[key] |
|
694 | 695 | data['*'] = star |
|
695 | 696 | else: |
|
696 | 697 | data[k] = vals[k] |
|
697 | 698 | result = func(repo, proto, *[data[k] for k in keys]) |
|
698 | 699 | else: |
|
699 | 700 | result = func(repo, proto) |
|
700 | 701 | if isinstance(result, ooberror): |
|
701 | 702 | return result |
|
702 | 703 | res.append(escapearg(result)) |
|
703 | 704 | return ';'.join(res) |
|
704 | 705 | |
|
705 | 706 | @wireprotocommand('between', 'pairs') |
|
706 | 707 | def between(repo, proto, pairs): |
|
707 | 708 | pairs = [decodelist(p, '-') for p in pairs.split(" ")] |
|
708 | 709 | r = [] |
|
709 | 710 | for b in repo.between(pairs): |
|
710 | 711 | r.append(encodelist(b) + "\n") |
|
711 | 712 | return "".join(r) |
|
712 | 713 | |
|
713 | 714 | @wireprotocommand('branchmap') |
|
714 | 715 | def branchmap(repo, proto): |
|
715 | 716 | branchmap = repo.branchmap() |
|
716 | 717 | heads = [] |
|
717 | 718 | for branch, nodes in branchmap.iteritems(): |
|
718 | 719 | branchname = urlreq.quote(encoding.fromlocal(branch)) |
|
719 | 720 | branchnodes = encodelist(nodes) |
|
720 | 721 | heads.append('%s %s' % (branchname, branchnodes)) |
|
721 | 722 | return '\n'.join(heads) |
|
722 | 723 | |
|
723 | 724 | @wireprotocommand('branches', 'nodes') |
|
724 | 725 | def branches(repo, proto, nodes): |
|
725 | 726 | nodes = decodelist(nodes) |
|
726 | 727 | r = [] |
|
727 | 728 | for b in repo.branches(nodes): |
|
728 | 729 | r.append(encodelist(b) + "\n") |
|
729 | 730 | return "".join(r) |
|
730 | 731 | |
|
731 | 732 | @wireprotocommand('clonebundles', '') |
|
732 | 733 | def clonebundles(repo, proto): |
|
733 | 734 | """Server command for returning info for available bundles to seed clones. |
|
734 | 735 | |
|
735 | 736 | Clients will parse this response and determine what bundle to fetch. |
|
736 | 737 | |
|
737 | 738 | Extensions may wrap this command to filter or dynamically emit data |
|
738 | 739 | depending on the request. e.g. you could advertise URLs for the closest |
|
739 | 740 | data center given the client's IP address. |
|
740 | 741 | """ |
|
741 | 742 | return repo.vfs.tryread('clonebundles.manifest') |
|
742 | 743 | |
|
743 | 744 | wireprotocaps = ['lookup', 'changegroupsubset', 'branchmap', 'pushkey', |
|
744 | 745 | 'known', 'getbundle', 'unbundlehash', 'batch'] |
|
745 | 746 | |
|
746 | 747 | def _capabilities(repo, proto): |
|
747 | 748 | """return a list of capabilities for a repo |
|
748 | 749 | |
|
749 | 750 | This function exists to allow extensions to easily wrap capabilities |
|
750 | 751 | computation |
|
751 | 752 | |
|
752 | 753 | - returns a lists: easy to alter |
|
753 | 754 | - change done here will be propagated to both `capabilities` and `hello` |
|
754 | 755 | command without any other action needed. |
|
755 | 756 | """ |
|
756 | 757 | # copy to prevent modification of the global list |
|
757 | 758 | caps = list(wireprotocaps) |
|
758 | 759 | if streamclone.allowservergeneration(repo): |
|
759 | 760 | if repo.ui.configbool('server', 'preferuncompressed'): |
|
760 | 761 | caps.append('stream-preferred') |
|
761 | 762 | requiredformats = repo.requirements & repo.supportedformats |
|
762 | 763 | # if our local revlogs are just revlogv1, add 'stream' cap |
|
763 | 764 | if not requiredformats - {'revlogv1'}: |
|
764 | 765 | caps.append('stream') |
|
765 | 766 | # otherwise, add 'streamreqs' detailing our local revlog format |
|
766 | 767 | else: |
|
767 | 768 | caps.append('streamreqs=%s' % ','.join(sorted(requiredformats))) |
|
768 | 769 | if repo.ui.configbool('experimental', 'bundle2-advertise'): |
|
769 | 770 | capsblob = bundle2.encodecaps(bundle2.getrepocaps(repo)) |
|
770 | 771 | caps.append('bundle2=' + urlreq.quote(capsblob)) |
|
771 | 772 | caps.append('unbundle=%s' % ','.join(bundle2.bundlepriority)) |
|
772 | 773 | |
|
773 | 774 | if proto.name == 'http': |
|
774 | 775 | caps.append('httpheader=%d' % |
|
775 | 776 | repo.ui.configint('server', 'maxhttpheaderlen')) |
|
776 | 777 | if repo.ui.configbool('experimental', 'httppostargs'): |
|
777 | 778 | caps.append('httppostargs') |
|
778 | 779 | |
|
779 | 780 | # FUTURE advertise 0.2rx once support is implemented |
|
780 | 781 | # FUTURE advertise minrx and mintx after consulting config option |
|
781 | 782 | caps.append('httpmediatype=0.1rx,0.1tx,0.2tx') |
|
782 | 783 | |
|
783 | 784 | compengines = supportedcompengines(repo.ui, proto, util.SERVERROLE) |
|
784 | 785 | if compengines: |
|
785 | 786 | comptypes = ','.join(urlreq.quote(e.wireprotosupport().name) |
|
786 | 787 | for e in compengines) |
|
787 | 788 | caps.append('compression=%s' % comptypes) |
|
788 | 789 | |
|
789 | 790 | return caps |
|
790 | 791 | |
|
791 | 792 | # If you are writing an extension and consider wrapping this function. Wrap |
|
792 | 793 | # `_capabilities` instead. |
|
793 | 794 | @wireprotocommand('capabilities') |
|
794 | 795 | def capabilities(repo, proto): |
|
795 | 796 | return ' '.join(_capabilities(repo, proto)) |
|
796 | 797 | |
|
797 | 798 | @wireprotocommand('changegroup', 'roots') |
|
798 | 799 | def changegroup(repo, proto, roots): |
|
799 | 800 | nodes = decodelist(roots) |
|
800 | 801 | outgoing = discovery.outgoing(repo, missingroots=nodes, |
|
801 | 802 | missingheads=repo.heads()) |
|
802 | 803 | cg = changegroupmod.makechangegroup(repo, outgoing, '01', 'serve') |
|
803 | 804 | return streamres(reader=cg, v1compressible=True) |
|
804 | 805 | |
|
805 | 806 | @wireprotocommand('changegroupsubset', 'bases heads') |
|
806 | 807 | def changegroupsubset(repo, proto, bases, heads): |
|
807 | 808 | bases = decodelist(bases) |
|
808 | 809 | heads = decodelist(heads) |
|
809 | 810 | outgoing = discovery.outgoing(repo, missingroots=bases, |
|
810 | 811 | missingheads=heads) |
|
811 | 812 | cg = changegroupmod.makechangegroup(repo, outgoing, '01', 'serve') |
|
812 | 813 | return streamres(reader=cg, v1compressible=True) |
|
813 | 814 | |
|
814 | 815 | @wireprotocommand('debugwireargs', 'one two *') |
|
815 | 816 | def debugwireargs(repo, proto, one, two, others): |
|
816 | 817 | # only accept optional args from the known set |
|
817 | 818 | opts = options('debugwireargs', ['three', 'four'], others) |
|
818 | 819 | return repo.debugwireargs(one, two, **opts) |
|
819 | 820 | |
|
820 | 821 | @wireprotocommand('getbundle', '*') |
|
821 | 822 | def getbundle(repo, proto, others): |
|
822 | 823 | opts = options('getbundle', gboptsmap.keys(), others) |
|
823 | 824 | for k, v in opts.iteritems(): |
|
824 | 825 | keytype = gboptsmap[k] |
|
825 | 826 | if keytype == 'nodes': |
|
826 | 827 | opts[k] = decodelist(v) |
|
827 | 828 | elif keytype == 'csv': |
|
828 | 829 | opts[k] = list(v.split(',')) |
|
829 | 830 | elif keytype == 'scsv': |
|
830 | 831 | opts[k] = set(v.split(',')) |
|
831 | 832 | elif keytype == 'boolean': |
|
832 | 833 | # Client should serialize False as '0', which is a non-empty string |
|
833 | 834 | # so it evaluates as a True bool. |
|
834 | 835 | if v == '0': |
|
835 | 836 | opts[k] = False |
|
836 | 837 | else: |
|
837 | 838 | opts[k] = bool(v) |
|
838 | 839 | elif keytype != 'plain': |
|
839 | 840 | raise KeyError('unknown getbundle option type %s' |
|
840 | 841 | % keytype) |
|
841 | 842 | |
|
842 | 843 | if not bundle1allowed(repo, 'pull'): |
|
843 | 844 | if not exchange.bundle2requested(opts.get('bundlecaps')): |
|
844 | 845 | if proto.name == 'http': |
|
845 | 846 | return ooberror(bundle2required) |
|
846 | 847 | raise error.Abort(bundle2requiredmain, |
|
847 | 848 | hint=bundle2requiredhint) |
|
848 | 849 | |
|
849 | 850 | try: |
|
850 | 851 | if repo.ui.configbool('server', 'disablefullbundle'): |
|
851 | 852 | # Check to see if this is a full clone. |
|
852 | 853 | clheads = set(repo.changelog.heads()) |
|
853 | 854 | heads = set(opts.get('heads', set())) |
|
854 | 855 | common = set(opts.get('common', set())) |
|
855 | 856 | common.discard(nullid) |
|
856 | 857 | if not common and clheads == heads: |
|
857 | 858 | raise error.Abort( |
|
858 | 859 | _('server has pull-based clones disabled'), |
|
859 | 860 | hint=_('remove --pull if specified or upgrade Mercurial')) |
|
860 | 861 | |
|
861 | 862 | chunks = exchange.getbundlechunks(repo, 'serve', **opts) |
|
862 | 863 | except error.Abort as exc: |
|
863 | 864 | # cleanly forward Abort error to the client |
|
864 | 865 | if not exchange.bundle2requested(opts.get('bundlecaps')): |
|
865 | 866 | if proto.name == 'http': |
|
866 | 867 | return ooberror(str(exc) + '\n') |
|
867 | 868 | raise # cannot do better for bundle1 + ssh |
|
868 | 869 | # bundle2 request expect a bundle2 reply |
|
869 | 870 | bundler = bundle2.bundle20(repo.ui) |
|
870 | 871 | manargs = [('message', str(exc))] |
|
871 | 872 | advargs = [] |
|
872 | 873 | if exc.hint is not None: |
|
873 | 874 | advargs.append(('hint', exc.hint)) |
|
874 | 875 | bundler.addpart(bundle2.bundlepart('error:abort', |
|
875 | 876 | manargs, advargs)) |
|
876 | 877 | return streamres(gen=bundler.getchunks(), v1compressible=True) |
|
877 | 878 | return streamres(gen=chunks, v1compressible=True) |
|
878 | 879 | |
|
879 | 880 | @wireprotocommand('heads') |
|
880 | 881 | def heads(repo, proto): |
|
881 | 882 | h = repo.heads() |
|
882 | 883 | return encodelist(h) + "\n" |
|
883 | 884 | |
|
884 | 885 | @wireprotocommand('hello') |
|
885 | 886 | def hello(repo, proto): |
|
886 | 887 | '''the hello command returns a set of lines describing various |
|
887 | 888 | interesting things about the server, in an RFC822-like format. |
|
888 | 889 | Currently the only one defined is "capabilities", which |
|
889 | 890 | consists of a line in the form: |
|
890 | 891 | |
|
891 | 892 | capabilities: space separated list of tokens |
|
892 | 893 | ''' |
|
893 | 894 | return "capabilities: %s\n" % (capabilities(repo, proto)) |
|
894 | 895 | |
|
895 | 896 | @wireprotocommand('listkeys', 'namespace') |
|
896 | 897 | def listkeys(repo, proto, namespace): |
|
897 | 898 | d = repo.listkeys(encoding.tolocal(namespace)).items() |
|
898 | 899 | return pushkeymod.encodekeys(d) |
|
899 | 900 | |
|
900 | 901 | @wireprotocommand('lookup', 'key') |
|
901 | 902 | def lookup(repo, proto, key): |
|
902 | 903 | try: |
|
903 | 904 | k = encoding.tolocal(key) |
|
904 | 905 | c = repo[k] |
|
905 | 906 | r = c.hex() |
|
906 | 907 | success = 1 |
|
907 | 908 | except Exception as inst: |
|
908 | 909 | r = str(inst) |
|
909 | 910 | success = 0 |
|
910 | 911 | return "%d %s\n" % (success, r) |
|
911 | 912 | |
|
912 | 913 | @wireprotocommand('known', 'nodes *') |
|
913 | 914 | def known(repo, proto, nodes, others): |
|
914 | 915 | return ''.join(b and "1" or "0" for b in repo.known(decodelist(nodes))) |
|
915 | 916 | |
|
916 | 917 | @wireprotocommand('pushkey', 'namespace key old new') |
|
917 | 918 | def pushkey(repo, proto, namespace, key, old, new): |
|
918 | 919 | # compatibility with pre-1.8 clients which were accidentally |
|
919 | 920 | # sending raw binary nodes rather than utf-8-encoded hex |
|
920 | 921 | if len(new) == 20 and util.escapestr(new) != new: |
|
921 | 922 | # looks like it could be a binary node |
|
922 | 923 | try: |
|
923 | 924 | new.decode('utf-8') |
|
924 | 925 | new = encoding.tolocal(new) # but cleanly decodes as UTF-8 |
|
925 | 926 | except UnicodeDecodeError: |
|
926 | 927 | pass # binary, leave unmodified |
|
927 | 928 | else: |
|
928 | 929 | new = encoding.tolocal(new) # normal path |
|
929 | 930 | |
|
930 | 931 | if util.safehasattr(proto, 'restore'): |
|
931 | 932 | |
|
932 | 933 | proto.redirect() |
|
933 | 934 | |
|
934 | 935 | try: |
|
935 | 936 | r = repo.pushkey(encoding.tolocal(namespace), encoding.tolocal(key), |
|
936 | 937 | encoding.tolocal(old), new) or False |
|
937 | 938 | except error.Abort: |
|
938 | 939 | r = False |
|
939 | 940 | |
|
940 | 941 | output = proto.restore() |
|
941 | 942 | |
|
942 | 943 | return '%s\n%s' % (int(r), output) |
|
943 | 944 | |
|
944 | 945 | r = repo.pushkey(encoding.tolocal(namespace), encoding.tolocal(key), |
|
945 | 946 | encoding.tolocal(old), new) |
|
946 | 947 | return '%s\n' % int(r) |
|
947 | 948 | |
|
948 | 949 | @wireprotocommand('stream_out') |
|
949 | 950 | def stream(repo, proto): |
|
950 | 951 | '''If the server supports streaming clone, it advertises the "stream" |
|
951 | 952 | capability with a value representing the version and flags of the repo |
|
952 | 953 | it is serving. Client checks to see if it understands the format. |
|
953 | 954 | ''' |
|
954 | 955 | if not streamclone.allowservergeneration(repo): |
|
955 | 956 | return '1\n' |
|
956 | 957 | |
|
957 | 958 | def getstream(it): |
|
958 | 959 | yield '0\n' |
|
959 | 960 | for chunk in it: |
|
960 | 961 | yield chunk |
|
961 | 962 | |
|
962 | 963 | try: |
|
963 | 964 | # LockError may be raised before the first result is yielded. Don't |
|
964 | 965 | # emit output until we're sure we got the lock successfully. |
|
965 | 966 | it = streamclone.generatev1wireproto(repo) |
|
966 | 967 | return streamres(gen=getstream(it)) |
|
967 | 968 | except error.LockError: |
|
968 | 969 | return '2\n' |
|
969 | 970 | |
|
970 | 971 | @wireprotocommand('unbundle', 'heads') |
|
971 | 972 | def unbundle(repo, proto, heads): |
|
972 | 973 | their_heads = decodelist(heads) |
|
973 | 974 | |
|
974 | 975 | try: |
|
975 | 976 | proto.redirect() |
|
976 | 977 | |
|
977 | 978 | exchange.check_heads(repo, their_heads, 'preparing changes') |
|
978 | 979 | |
|
979 | 980 | # write bundle data to temporary file because it can be big |
|
980 | 981 | fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-') |
|
981 | 982 | fp = os.fdopen(fd, pycompat.sysstr('wb+')) |
|
982 | 983 | r = 0 |
|
983 | 984 | try: |
|
984 | 985 | proto.getfile(fp) |
|
985 | 986 | fp.seek(0) |
|
986 | 987 | gen = exchange.readbundle(repo.ui, fp, None) |
|
987 | 988 | if (isinstance(gen, changegroupmod.cg1unpacker) |
|
988 | 989 | and not bundle1allowed(repo, 'push')): |
|
989 | 990 | if proto.name == 'http': |
|
990 | 991 | # need to special case http because stderr do not get to |
|
991 | 992 | # the http client on failed push so we need to abuse some |
|
992 | 993 | # other error type to make sure the message get to the |
|
993 | 994 | # user. |
|
994 | 995 | return ooberror(bundle2required) |
|
995 | 996 | raise error.Abort(bundle2requiredmain, |
|
996 | 997 | hint=bundle2requiredhint) |
|
997 | 998 | |
|
998 | 999 | r = exchange.unbundle(repo, gen, their_heads, 'serve', |
|
999 | 1000 | proto._client()) |
|
1000 | 1001 | if util.safehasattr(r, 'addpart'): |
|
1001 | 1002 | # The return looks streamable, we are in the bundle2 case and |
|
1002 | 1003 | # should return a stream. |
|
1003 | 1004 | return streamres(gen=r.getchunks()) |
|
1004 | 1005 | return pushres(r) |
|
1005 | 1006 | |
|
1006 | 1007 | finally: |
|
1007 | 1008 | fp.close() |
|
1008 | 1009 | os.unlink(tempname) |
|
1009 | 1010 | |
|
1010 | 1011 | except (error.BundleValueError, error.Abort, error.PushRaced) as exc: |
|
1011 | 1012 | # handle non-bundle2 case first |
|
1012 | 1013 | if not getattr(exc, 'duringunbundle2', False): |
|
1013 | 1014 | try: |
|
1014 | 1015 | raise |
|
1015 | 1016 | except error.Abort: |
|
1016 | 1017 | # The old code we moved used util.stderr directly. |
|
1017 | 1018 | # We did not change it to minimise code change. |
|
1018 | 1019 | # This need to be moved to something proper. |
|
1019 | 1020 | # Feel free to do it. |
|
1020 | 1021 | util.stderr.write("abort: %s\n" % exc) |
|
1021 | 1022 | if exc.hint is not None: |
|
1022 | 1023 | util.stderr.write("(%s)\n" % exc.hint) |
|
1023 | 1024 | return pushres(0) |
|
1024 | 1025 | except error.PushRaced: |
|
1025 | 1026 | return pusherr(str(exc)) |
|
1026 | 1027 | |
|
1027 | 1028 | bundler = bundle2.bundle20(repo.ui) |
|
1028 | 1029 | for out in getattr(exc, '_bundle2salvagedoutput', ()): |
|
1029 | 1030 | bundler.addpart(out) |
|
1030 | 1031 | try: |
|
1031 | 1032 | try: |
|
1032 | 1033 | raise |
|
1033 | 1034 | except error.PushkeyFailed as exc: |
|
1034 | 1035 | # check client caps |
|
1035 | 1036 | remotecaps = getattr(exc, '_replycaps', None) |
|
1036 | 1037 | if (remotecaps is not None |
|
1037 | 1038 | and 'pushkey' not in remotecaps.get('error', ())): |
|
1038 | 1039 | # no support remote side, fallback to Abort handler. |
|
1039 | 1040 | raise |
|
1040 | 1041 | part = bundler.newpart('error:pushkey') |
|
1041 | 1042 | part.addparam('in-reply-to', exc.partid) |
|
1042 | 1043 | if exc.namespace is not None: |
|
1043 | 1044 | part.addparam('namespace', exc.namespace, mandatory=False) |
|
1044 | 1045 | if exc.key is not None: |
|
1045 | 1046 | part.addparam('key', exc.key, mandatory=False) |
|
1046 | 1047 | if exc.new is not None: |
|
1047 | 1048 | part.addparam('new', exc.new, mandatory=False) |
|
1048 | 1049 | if exc.old is not None: |
|
1049 | 1050 | part.addparam('old', exc.old, mandatory=False) |
|
1050 | 1051 | if exc.ret is not None: |
|
1051 | 1052 | part.addparam('ret', exc.ret, mandatory=False) |
|
1052 | 1053 | except error.BundleValueError as exc: |
|
1053 | 1054 | errpart = bundler.newpart('error:unsupportedcontent') |
|
1054 | 1055 | if exc.parttype is not None: |
|
1055 | 1056 | errpart.addparam('parttype', exc.parttype) |
|
1056 | 1057 | if exc.params: |
|
1057 | 1058 | errpart.addparam('params', '\0'.join(exc.params)) |
|
1058 | 1059 | except error.Abort as exc: |
|
1059 | 1060 | manargs = [('message', str(exc))] |
|
1060 | 1061 | advargs = [] |
|
1061 | 1062 | if exc.hint is not None: |
|
1062 | 1063 | advargs.append(('hint', exc.hint)) |
|
1063 | 1064 | bundler.addpart(bundle2.bundlepart('error:abort', |
|
1064 | 1065 | manargs, advargs)) |
|
1065 | 1066 | except error.PushRaced as exc: |
|
1066 | 1067 | bundler.newpart('error:pushraced', [('message', str(exc))]) |
|
1067 | 1068 | return streamres(gen=bundler.getchunks()) |
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