Mercurial > hg
annotate mercurial/hgweb/protocol.py @ 32164:29e286fa4db0
changegroup: deduplicate 'getlocalchangegroup'
The two functions 'getlocalchangegroup' and 'getchangegroup' have been strictly
identical for multiple years ('getchangegroup' had a deprecated docstring)
We'll drop one of them (getlocalchangegroup, since it has the longest name).
However, we needs to migrate all users of the dropped one to the new one before
we can deprecate it. In the mean time we drop one of the duplicated definition
and the outdated docstring.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 04 May 2017 12:36:45 +0200 |
parents | e75463e3179f |
children | 35c233975b78 |
rev | line source |
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1 # |
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2 # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> |
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3 # Copyright 2005-2007 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 cgi |
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11 import struct |
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12 |
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13 from .common import ( |
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14 HTTP_OK, |
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15 ) |
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16 |
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17 from .. import ( |
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18 util, |
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19 wireproto, |
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20 ) |
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21 stringio = util.stringio |
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22 |
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23 urlerr = util.urlerr |
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24 urlreq = util.urlreq |
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25 |
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26 HGTYPE = 'application/mercurial-0.1' |
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27 HGTYPE2 = 'application/mercurial-0.2' |
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28 HGERRTYPE = 'application/hg-error' |
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29 |
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30 def decodevaluefromheaders(req, headerprefix): |
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31 """Decode a long value from multiple HTTP request headers.""" |
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32 chunks = [] |
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33 i = 1 |
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34 while True: |
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35 v = req.env.get('HTTP_%s_%d' % ( |
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36 headerprefix.upper().replace('-', '_'), i)) |
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37 if v is None: |
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38 break |
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39 chunks.append(v) |
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40 i += 1 |
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41 |
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42 return ''.join(chunks) |
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43 |
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44 class webproto(wireproto.abstractserverproto): |
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45 def __init__(self, req, ui): |
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46 self.req = req |
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47 self.response = '' |
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48 self.ui = ui |
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49 self.name = 'http' |
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50 |
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51 def getargs(self, args): |
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52 knownargs = self._args() |
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53 data = {} |
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54 keys = args.split() |
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55 for k in keys: |
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56 if k == '*': |
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57 star = {} |
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58 for key in knownargs.keys(): |
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59 if key != 'cmd' and key not in keys: |
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60 star[key] = knownargs[key][0] |
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61 data['*'] = star |
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62 else: |
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63 data[k] = knownargs[k][0] |
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64 return [data[k] for k in keys] |
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65 def _args(self): |
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66 args = self.req.form.copy() |
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67 postlen = int(self.req.env.get('HTTP_X_HGARGS_POST', 0)) |
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68 if postlen: |
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69 args.update(cgi.parse_qs( |
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70 self.req.read(postlen), keep_blank_values=True)) |
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71 return args |
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72 |
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73 argvalue = decodevaluefromheaders(self.req, 'X-HgArg') |
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74 args.update(cgi.parse_qs(argvalue, keep_blank_values=True)) |
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75 return args |
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76 def getfile(self, fp): |
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77 length = int(self.req.env['CONTENT_LENGTH']) |
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78 for s in util.filechunkiter(self.req, limit=length): |
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79 fp.write(s) |
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80 def redirect(self): |
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81 self.oldio = self.ui.fout, self.ui.ferr |
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82 self.ui.ferr = self.ui.fout = stringio() |
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83 def restore(self): |
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84 val = self.ui.fout.getvalue() |
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85 self.ui.ferr, self.ui.fout = self.oldio |
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86 return val |
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87 |
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88 def _client(self): |
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89 return 'remote:%s:%s:%s' % ( |
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90 self.req.env.get('wsgi.url_scheme') or 'http', |
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91 urlreq.quote(self.req.env.get('REMOTE_HOST', '')), |
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92 urlreq.quote(self.req.env.get('REMOTE_USER', ''))) |
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93 |
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94 def responsetype(self, v1compressible=False): |
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95 """Determine the appropriate response type and compression settings. |
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96 |
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97 The ``v1compressible`` argument states whether the response with |
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98 application/mercurial-0.1 media types should be zlib compressed. |
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99 |
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100 Returns a tuple of (mediatype, compengine, engineopts). |
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101 """ |
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102 # For now, if it isn't compressible in the old world, it's never |
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103 # compressible. We can change this to send uncompressed 0.2 payloads |
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104 # later. |
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105 if not v1compressible: |
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106 return HGTYPE, None, None |
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107 |
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108 # Determine the response media type and compression engine based |
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109 # on the request parameters. |
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110 protocaps = decodevaluefromheaders(self.req, 'X-HgProto').split(' ') |
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111 |
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112 if '0.2' in protocaps: |
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113 # Default as defined by wire protocol spec. |
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114 compformats = ['zlib', 'none'] |
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115 for cap in protocaps: |
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116 if cap.startswith('comp='): |
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117 compformats = cap[5:].split(',') |
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118 break |
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119 |
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120 # Now find an agreed upon compression format. |
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121 for engine in wireproto.supportedcompengines(self.ui, self, |
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122 util.SERVERROLE): |
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123 if engine.wireprotosupport().name in compformats: |
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124 opts = {} |
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125 level = self.ui.configint('server', |
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126 '%slevel' % engine.name()) |
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127 if level is not None: |
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128 opts['level'] = level |
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129 |
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130 return HGTYPE2, engine, opts |
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131 |
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132 # No mutually supported compression format. Fall back to the |
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133 # legacy protocol. |
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134 |
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135 # Don't allow untrusted settings because disabling compression or |
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136 # setting a very high compression level could lead to flooding |
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137 # the server's network or CPU. |
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138 opts = {'level': self.ui.configint('server', 'zliblevel', -1)} |
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139 return HGTYPE, util.compengines['zlib'], opts |
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140 |
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141 def iscmd(cmd): |
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142 return cmd in wireproto.commands |
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143 |
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144 def call(repo, req, cmd): |
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145 p = webproto(req, repo.ui) |
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146 |
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147 def genversion2(gen, compress, engine, engineopts): |
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148 # application/mercurial-0.2 always sends a payload header |
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149 # identifying the compression engine. |
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150 name = engine.wireprotosupport().name |
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151 assert 0 < len(name) < 256 |
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152 yield struct.pack('B', len(name)) |
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153 yield name |
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154 |
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155 if compress: |
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156 for chunk in engine.compressstream(gen, opts=engineopts): |
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157 yield chunk |
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158 else: |
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159 for chunk in gen: |
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160 yield chunk |
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161 |
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162 rsp = wireproto.dispatch(repo, p, cmd) |
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163 if isinstance(rsp, str): |
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164 req.respond(HTTP_OK, HGTYPE, body=rsp) |
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165 return [] |
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166 elif isinstance(rsp, wireproto.streamres): |
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167 if rsp.reader: |
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168 gen = iter(lambda: rsp.reader.read(32768), '') |
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169 else: |
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170 gen = rsp.gen |
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171 |
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172 # This code for compression should not be streamres specific. It |
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173 # is here because we only compress streamres at the moment. |
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174 mediatype, engine, engineopts = p.responsetype(rsp.v1compressible) |
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175 |
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176 if mediatype == HGTYPE and rsp.v1compressible: |
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177 gen = engine.compressstream(gen, engineopts) |
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178 elif mediatype == HGTYPE2: |
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179 gen = genversion2(gen, rsp.v1compressible, engine, engineopts) |
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180 |
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181 req.respond(HTTP_OK, mediatype) |
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182 return gen |
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183 elif isinstance(rsp, wireproto.pushres): |
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184 val = p.restore() |
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185 rsp = '%d\n%s' % (rsp.res, val) |
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186 req.respond(HTTP_OK, HGTYPE, body=rsp) |
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187 return [] |
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188 elif isinstance(rsp, wireproto.pusherr): |
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189 # drain the incoming bundle |
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190 req.drain() |
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191 p.restore() |
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192 rsp = '0\n%s\n' % rsp.res |
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193 req.respond(HTTP_OK, HGTYPE, body=rsp) |
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194 return [] |
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195 elif isinstance(rsp, wireproto.ooberror): |
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196 rsp = rsp.message |
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197 req.respond(HTTP_OK, HGERRTYPE, body=rsp) |
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198 return [] |