Mercurial > hg
annotate mercurial/hgweb/server.py @ 43076:2372284d9457
formatting: blacken the codebase
This is using my patch to black
(https://github.com/psf/black/pull/826) so we don't un-wrap collection
literals.
Done with:
hg files 'set:**.py - mercurial/thirdparty/** - "contrib/python-zstandard/**"' | xargs black -S
# skip-blame mass-reformatting only
# no-check-commit reformats foo_bar functions
Differential Revision: https://phab.mercurial-scm.org/D6971
author | Augie Fackler <augie@google.com> |
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date | Sun, 06 Oct 2019 09:45:02 -0400 |
parents | e554cfd93975 |
children | 687b865b95ad |
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1 # hgweb/server.py - The standalone hg web server. |
131 | 2 # |
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3 # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> |
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4 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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6 # This software may be used and distributed according to the terms of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
131 | 8 |
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9 from __future__ import absolute_import |
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10 |
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11 import errno |
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12 import importlib |
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13 import os |
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14 import socket |
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15 import sys |
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16 import traceback |
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17 import wsgiref.validate |
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18 |
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19 from ..i18n import _ |
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20 |
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21 from .. import ( |
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22 encoding, |
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23 error, |
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24 pycompat, |
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25 util, |
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26 ) |
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27 |
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28 httpservermod = util.httpserver |
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29 socketserver = util.socketserver |
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30 urlerr = util.urlerr |
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31 urlreq = util.urlreq |
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32 |
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33 from . import common |
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34 |
138 | 35 |
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36 def _splitURI(uri): |
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37 """Return path and query that has been split from uri |
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38 |
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39 Just like CGI environment, the path is unquoted, the query is |
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40 not. |
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41 """ |
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42 if r'?' in uri: |
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43 path, query = uri.split(r'?', 1) |
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44 else: |
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45 path, query = uri, r'' |
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46 return urlreq.unquote(path), query |
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47 |
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48 |
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49 class _error_logger(object): |
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50 def __init__(self, handler): |
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51 self.handler = handler |
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52 |
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53 def flush(self): |
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54 pass |
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55 |
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56 def write(self, str): |
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57 self.writelines(str.split('\n')) |
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58 |
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59 def writelines(self, seq): |
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60 for msg in seq: |
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61 self.handler.log_error(r"HG error: %s", encoding.strfromlocal(msg)) |
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62 |
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63 |
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64 class _httprequesthandler(httpservermod.basehttprequesthandler): |
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65 |
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66 url_scheme = 'http' |
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67 |
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68 @staticmethod |
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69 def preparehttpserver(httpserver, ui): |
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70 """Prepare .socket of new HTTPServer instance""" |
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71 |
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72 def __init__(self, *args, **kargs): |
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73 self.protocol_version = r'HTTP/1.1' |
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74 httpservermod.basehttprequesthandler.__init__(self, *args, **kargs) |
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75 |
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76 def _log_any(self, fp, format, *args): |
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77 fp.write( |
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78 pycompat.sysbytes( |
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79 r"%s - - [%s] %s" |
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80 % ( |
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81 self.client_address[0], |
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82 self.log_date_time_string(), |
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83 format % args, |
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84 ) |
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85 ) |
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86 + '\n' |
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87 ) |
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88 fp.flush() |
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89 |
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90 def log_error(self, format, *args): |
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91 self._log_any(self.server.errorlog, format, *args) |
131 | 92 |
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93 def log_message(self, format, *args): |
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94 self._log_any(self.server.accesslog, format, *args) |
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96 def log_request(self, code=r'-', size=r'-'): |
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97 xheaders = [] |
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98 if util.safehasattr(self, 'headers'): |
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99 xheaders = [ |
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100 h for h in self.headers.items() if h[0].startswith(r'x-') |
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101 ] |
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102 self.log_message( |
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103 r'"%s" %s %s%s', |
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104 self.requestline, |
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105 str(code), |
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106 str(size), |
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107 r''.join([r' %s:%s' % h for h in sorted(xheaders)]), |
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108 ) |
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109 |
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110 def do_write(self): |
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111 try: |
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112 self.do_hgweb() |
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113 except socket.error as inst: |
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114 if inst.errno != errno.EPIPE: |
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115 raise |
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116 |
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117 def do_POST(self): |
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118 try: |
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119 self.do_write() |
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120 except Exception as e: |
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121 # I/O below could raise another exception. So log the original |
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122 # exception first to ensure it is recorded. |
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123 if not ( |
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124 isinstance(e, (OSError, socket.error)) |
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125 and e.errno == errno.ECONNRESET |
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126 ): |
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127 tb = r"".join(traceback.format_exception(*sys.exc_info())) |
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128 # We need a native-string newline to poke in the log |
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129 # message, because we won't get a newline when using an |
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130 # r-string. This is the easy way out. |
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131 newline = chr(10) |
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132 self.log_error( |
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133 r"Exception happened during processing " |
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134 r"request '%s':%s%s", |
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135 self.path, |
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136 newline, |
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137 tb, |
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138 ) |
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139 |
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140 self._start_response(r"500 Internal Server Error", []) |
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141 self._write(b"Internal Server Error") |
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142 self._done() |
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143 |
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144 def do_PUT(self): |
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145 self.do_POST() |
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146 |
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147 def do_GET(self): |
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148 self.do_POST() |
131 | 149 |
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150 def do_hgweb(self): |
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151 self.sent_headers = False |
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152 path, query = _splitURI(self.path) |
138 | 153 |
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154 # Ensure the slicing of path below is valid |
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155 if path != self.server.prefix and not path.startswith( |
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156 self.server.prefix + b'/' |
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157 ): |
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158 self._start_response(pycompat.strurl(common.statusmessage(404)), []) |
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159 if self.command == 'POST': |
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160 # Paranoia: tell the client we're going to close the |
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161 # socket so they don't try and reuse a socket that |
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162 # might have a POST body waiting to confuse us. We do |
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163 # this by directly munging self.saved_headers because |
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164 # self._start_response ignores Connection headers. |
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165 self.saved_headers = [(r'Connection', r'Close')] |
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166 self._write(b"Not Found") |
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167 self._done() |
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168 return |
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169 |
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170 env = {} |
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171 env[r'GATEWAY_INTERFACE'] = r'CGI/1.1' |
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172 env[r'REQUEST_METHOD'] = self.command |
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173 env[r'SERVER_NAME'] = self.server.server_name |
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174 env[r'SERVER_PORT'] = str(self.server.server_port) |
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175 env[r'REQUEST_URI'] = self.path |
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176 env[r'SCRIPT_NAME'] = pycompat.sysstr(self.server.prefix) |
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177 env[r'PATH_INFO'] = pycompat.sysstr(path[len(self.server.prefix) :]) |
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178 env[r'REMOTE_HOST'] = self.client_address[0] |
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179 env[r'REMOTE_ADDR'] = self.client_address[0] |
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180 env[r'QUERY_STRING'] = query or r'' |
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181 |
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182 if pycompat.ispy3: |
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183 if self.headers.get_content_type() is None: |
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184 env[r'CONTENT_TYPE'] = self.headers.get_default_type() |
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185 else: |
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186 env[r'CONTENT_TYPE'] = self.headers.get_content_type() |
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187 length = self.headers.get(r'content-length') |
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188 else: |
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189 if self.headers.typeheader is None: |
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190 env[r'CONTENT_TYPE'] = self.headers.type |
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191 else: |
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192 env[r'CONTENT_TYPE'] = self.headers.typeheader |
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193 length = self.headers.getheader(r'content-length') |
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194 if length: |
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195 env[r'CONTENT_LENGTH'] = length |
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196 for header in [ |
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197 h |
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198 for h in self.headers.keys() |
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199 if h.lower() not in (r'content-type', r'content-length') |
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200 ]: |
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201 hkey = r'HTTP_' + header.replace(r'-', r'_').upper() |
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202 hval = self.headers.get(header) |
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203 hval = hval.replace(r'\n', r'').strip() |
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204 if hval: |
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205 env[hkey] = hval |
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206 env[r'SERVER_PROTOCOL'] = self.request_version |
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207 env[r'wsgi.version'] = (1, 0) |
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208 env[r'wsgi.url_scheme'] = pycompat.sysstr(self.url_scheme) |
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209 if env.get(r'HTTP_EXPECT', '').lower() == '100-continue': |
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210 self.rfile = common.continuereader(self.rfile, self.wfile.write) |
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211 |
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212 env[r'wsgi.input'] = self.rfile |
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213 env[r'wsgi.errors'] = _error_logger(self) |
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214 env[r'wsgi.multithread'] = isinstance( |
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215 self.server, socketserver.ThreadingMixIn |
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216 ) |
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217 if util.safehasattr(socketserver, 'ForkingMixIn'): |
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218 env[r'wsgi.multiprocess'] = isinstance( |
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219 self.server, socketserver.ForkingMixIn |
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220 ) |
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221 else: |
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222 env[r'wsgi.multiprocess'] = False |
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223 |
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224 env[r'wsgi.run_once'] = 0 |
601 | 225 |
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226 wsgiref.validate.check_environ(env) |
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227 |
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228 self.saved_status = None |
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229 self.saved_headers = [] |
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230 self.length = None |
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231 self._chunked = None |
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232 for chunk in self.server.application(env, self._start_response): |
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233 self._write(chunk) |
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234 if not self.sent_headers: |
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235 self.send_headers() |
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236 self._done() |
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237 |
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238 def send_headers(self): |
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239 if not self.saved_status: |
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240 raise AssertionError( |
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241 "Sending headers before " "start_response() called" |
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242 ) |
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243 saved_status = self.saved_status.split(None, 1) |
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244 saved_status[0] = int(saved_status[0]) |
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245 self.send_response(*saved_status) |
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246 self.length = None |
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247 self._chunked = False |
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248 for h in self.saved_headers: |
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249 self.send_header(*h) |
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250 if h[0].lower() == r'content-length': |
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251 self.length = int(h[1]) |
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252 if self.length is None and saved_status[0] != common.HTTP_NOT_MODIFIED: |
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253 self._chunked = ( |
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254 not self.close_connection |
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255 and self.request_version == r'HTTP/1.1' |
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256 ) |
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257 if self._chunked: |
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258 self.send_header(r'Transfer-Encoding', r'chunked') |
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259 else: |
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260 self.send_header(r'Connection', r'close') |
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261 self.end_headers() |
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262 self.sent_headers = True |
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263 |
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264 def _start_response(self, http_status, headers, exc_info=None): |
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265 assert isinstance(http_status, str) |
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266 code, msg = http_status.split(None, 1) |
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267 code = int(code) |
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268 self.saved_status = http_status |
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269 bad_headers = (r'connection', r'transfer-encoding') |
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270 self.saved_headers = [ |
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271 h for h in headers if h[0].lower() not in bad_headers |
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272 ] |
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273 return self._write |
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274 |
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275 def _write(self, data): |
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276 if not self.saved_status: |
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277 raise AssertionError("data written before start_response() called") |
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278 elif not self.sent_headers: |
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279 self.send_headers() |
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280 if self.length is not None: |
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281 if len(data) > self.length: |
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282 raise AssertionError( |
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283 "Content-length header sent, but more " |
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284 "bytes than specified are being written." |
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285 ) |
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286 self.length = self.length - len(data) |
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287 elif self._chunked and data: |
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288 data = '%x\r\n%s\r\n' % (len(data), data) |
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289 self.wfile.write(data) |
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290 self.wfile.flush() |
136 | 291 |
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292 def _done(self): |
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293 if self._chunked: |
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294 self.wfile.write('0\r\n\r\n') |
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295 self.wfile.flush() |
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296 |
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297 def version_string(self): |
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298 if self.server.serverheader: |
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299 return encoding.strfromlocal(self.server.serverheader) |
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300 return httpservermod.basehttprequesthandler.version_string(self) |
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301 |
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302 |
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303 class _httprequesthandlerssl(_httprequesthandler): |
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304 """HTTPS handler based on Python's ssl module""" |
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305 |
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306 url_scheme = 'https' |
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307 |
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308 @staticmethod |
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309 def preparehttpserver(httpserver, ui): |
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310 try: |
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311 from .. import sslutil |
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312 |
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313 sslutil.modernssl |
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314 except ImportError: |
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315 raise error.Abort(_("SSL support is unavailable")) |
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316 |
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317 certfile = ui.config('web', 'certificate') |
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318 |
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319 # These config options are currently only meant for testing. Use |
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320 # at your own risk. |
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321 cafile = ui.config('devel', 'servercafile') |
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322 reqcert = ui.configbool('devel', 'serverrequirecert') |
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323 |
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324 httpserver.socket = sslutil.wrapserversocket( |
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325 httpserver.socket, |
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326 ui, |
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327 certfile=certfile, |
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328 cafile=cafile, |
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329 requireclientcert=reqcert, |
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330 ) |
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331 |
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332 def setup(self): |
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333 self.connection = self.request |
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334 self.rfile = self.request.makefile(r"rb", self.rbufsize) |
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335 self.wfile = self.request.makefile(r"wb", self.wbufsize) |
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336 |
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337 |
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338 try: |
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339 import threading |
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340 |
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341 threading.activeCount() # silence pyflakes and bypass demandimport |
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342 _mixin = socketserver.ThreadingMixIn |
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343 except ImportError: |
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344 if util.safehasattr(os, "fork"): |
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345 _mixin = socketserver.ForkingMixIn |
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346 else: |
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347 |
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348 class _mixin(object): |
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349 pass |
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350 |
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351 |
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352 def openlog(opt, default): |
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353 if opt and opt != '-': |
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354 return open(opt, 'ab') |
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355 return default |
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356 |
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357 |
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358 class MercurialHTTPServer(_mixin, httpservermod.httpserver, object): |
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359 |
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360 # SO_REUSEADDR has broken semantics on windows |
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362 allow_reuse_address = 0 |
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363 |
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364 def __init__(self, ui, app, addr, handler, **kwargs): |
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365 httpservermod.httpserver.__init__(self, addr, handler, **kwargs) |
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366 self.daemon_threads = True |
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367 self.application = app |
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368 |
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369 handler.preparehttpserver(self, ui) |
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370 |
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371 prefix = ui.config('web', 'prefix') |
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372 if prefix: |
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373 prefix = '/' + prefix.strip('/') |
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374 self.prefix = prefix |
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375 |
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376 alog = openlog(ui.config('web', 'accesslog'), ui.fout) |
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377 elog = openlog(ui.config('web', 'errorlog'), ui.ferr) |
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378 self.accesslog = alog |
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379 self.errorlog = elog |
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380 |
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381 self.addr, self.port = self.socket.getsockname()[0:2] |
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382 self.fqaddr = socket.getfqdn(addr[0]) |
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383 |
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384 self.serverheader = ui.config('web', 'server-header') |
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385 |
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386 |
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387 class IPv6HTTPServer(MercurialHTTPServer): |
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388 address_family = getattr(socket, 'AF_INET6', None) |
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389 |
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390 def __init__(self, *args, **kwargs): |
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391 if self.address_family is None: |
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392 raise error.RepoError(_('IPv6 is not available on this system')) |
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393 super(IPv6HTTPServer, self).__init__(*args, **kwargs) |
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394 |
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395 |
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396 def create_server(ui, app): |
938 | 397 |
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398 if ui.config('web', 'certificate'): |
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399 handler = _httprequesthandlerssl |
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400 else: |
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401 handler = _httprequesthandler |
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402 |
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403 if ui.configbool('web', 'ipv6'): |
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404 cls = IPv6HTTPServer |
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405 else: |
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406 cls = MercurialHTTPServer |
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407 |
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408 # ugly hack due to python issue5853 (for threaded use) |
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409 try: |
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410 import mimetypes |
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411 |
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412 mimetypes.init() |
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413 except UnicodeDecodeError: |
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414 # Python 2.x's mimetypes module attempts to decode strings |
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415 # from Windows' ANSI APIs as ascii (fail), then re-encode them |
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416 # as ascii (clown fail), because the default Python Unicode |
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417 # codec is hardcoded as ascii. |
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418 |
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419 sys.argv # unwrap demand-loader so that reload() works |
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420 # resurrect sys.setdefaultencoding() |
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421 try: |
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422 importlib.reload(sys) |
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423 except AttributeError: |
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424 reload(sys) |
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425 oldenc = sys.getdefaultencoding() |
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426 sys.setdefaultencoding("latin1") # or any full 8-bit encoding |
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427 mimetypes.init() |
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428 sys.setdefaultencoding(oldenc) |
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429 |
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430 address = ui.config('web', 'address') |
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431 port = util.getport(ui.config('web', 'port')) |
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432 try: |
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433 return cls(ui, app, (address, port), handler) |
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434 except socket.error as inst: |
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435 raise error.Abort( |
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436 _("cannot start server at '%s:%d': %s") |
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437 % (address, port, encoding.strtolocal(inst.args[1])) |
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438 ) |