Mercurial > hg
annotate mercurial/hgweb/server.py @ 46387:c41ac8985fe4
perf: test the formatting of a command help
Since we are about to addd ':' in command name I want this covered.
Differential Revision: https://phab.mercurial-scm.org/D9871
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 25 Jan 2021 23:13:01 +0100 |
parents | dd3050227a84 |
children | d4ba4d51f85f |
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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 from ..pycompat import ( |
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21 getattr, |
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22 open, |
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23 ) |
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24 |
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25 from .. import ( |
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26 encoding, |
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27 error, |
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28 pycompat, |
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29 util, |
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30 ) |
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31 |
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32 httpservermod = util.httpserver |
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33 socketserver = util.socketserver |
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34 urlerr = util.urlerr |
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35 urlreq = util.urlreq |
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36 |
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37 from . import common |
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38 |
138 | 39 |
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40 def _splitURI(uri): |
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41 """Return path and query that has been split from uri |
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42 |
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43 Just like CGI environment, the path is unquoted, the query is |
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44 not. |
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45 """ |
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46 if '?' in uri: |
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47 path, query = uri.split('?', 1) |
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48 else: |
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49 path, query = uri, r'' |
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50 return urlreq.unquote(path), query |
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51 |
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52 |
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53 class _error_logger(object): |
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54 def __init__(self, handler): |
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55 self.handler = handler |
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56 |
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57 def flush(self): |
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58 pass |
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59 |
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60 def write(self, str): |
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61 self.writelines(str.split(b'\n')) |
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62 |
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63 def writelines(self, seq): |
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64 for msg in seq: |
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65 self.handler.log_error("HG error: %s", encoding.strfromlocal(msg)) |
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66 |
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67 |
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68 class _httprequesthandler(httpservermod.basehttprequesthandler): |
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69 |
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70 url_scheme = b'http' |
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71 |
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72 @staticmethod |
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73 def preparehttpserver(httpserver, ui): |
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74 """Prepare .socket of new HTTPServer instance""" |
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75 |
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76 def __init__(self, *args, **kargs): |
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77 self.protocol_version = r'HTTP/1.1' |
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78 httpservermod.basehttprequesthandler.__init__(self, *args, **kargs) |
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79 |
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80 def _log_any(self, fp, format, *args): |
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81 fp.write( |
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82 pycompat.sysbytes( |
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83 r"%s - - [%s] %s" |
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84 % ( |
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85 self.client_address[0], |
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86 self.log_date_time_string(), |
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87 format % args, |
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88 ) |
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89 ) |
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90 + b'\n' |
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91 ) |
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92 fp.flush() |
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93 |
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94 def log_error(self, format, *args): |
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95 self._log_any(self.server.errorlog, format, *args) |
131 | 96 |
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97 def log_message(self, format, *args): |
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98 self._log_any(self.server.accesslog, format, *args) |
538 | 99 |
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100 def log_request(self, code='-', size='-'): |
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101 xheaders = [] |
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102 if util.safehasattr(self, b'headers'): |
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103 xheaders = [ |
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104 h for h in self.headers.items() if h[0].startswith('x-') |
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105 ] |
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106 self.log_message( |
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107 '"%s" %s %s%s', |
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108 self.requestline, |
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109 str(code), |
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110 str(size), |
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111 ''.join([' %s:%s' % h for h in sorted(xheaders)]), |
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112 ) |
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113 |
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114 def do_write(self): |
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115 try: |
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116 self.do_hgweb() |
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117 except socket.error as inst: |
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118 if inst.errno != errno.EPIPE: |
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119 raise |
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120 |
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121 def do_POST(self): |
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122 try: |
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123 self.do_write() |
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124 except Exception as e: |
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125 # I/O below could raise another exception. So log the original |
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126 # exception first to ensure it is recorded. |
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127 if not ( |
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128 isinstance(e, (OSError, socket.error)) |
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129 and e.errno == errno.ECONNRESET |
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130 ): |
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131 tb = "".join(traceback.format_exception(*sys.exc_info())) |
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132 # We need a native-string newline to poke in the log |
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133 # message, because we won't get a newline when using an |
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134 # r-string. This is the easy way out. |
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135 newline = chr(10) |
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136 self.log_error( |
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137 r"Exception happened during processing " |
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138 "request '%s':%s%s", |
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139 self.path, |
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140 newline, |
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141 tb, |
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142 ) |
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143 |
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144 self._start_response("500 Internal Server Error", []) |
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145 self._write(b"Internal Server Error") |
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146 self._done() |
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147 |
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148 def do_PUT(self): |
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149 self.do_POST() |
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150 |
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151 def do_GET(self): |
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152 self.do_POST() |
131 | 153 |
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154 def do_hgweb(self): |
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155 self.sent_headers = False |
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156 path, query = _splitURI(self.path) |
138 | 157 |
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158 # Ensure the slicing of path below is valid |
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159 if path != self.server.prefix and not path.startswith( |
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160 self.server.prefix + b'/' |
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161 ): |
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162 self._start_response(pycompat.strurl(common.statusmessage(404)), []) |
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163 if self.command == 'POST': |
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164 # Paranoia: tell the client we're going to close the |
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165 # socket so they don't try and reuse a socket that |
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166 # might have a POST body waiting to confuse us. We do |
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167 # this by directly munging self.saved_headers because |
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168 # self._start_response ignores Connection headers. |
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169 self.saved_headers = [('Connection', 'Close')] |
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170 self._write(b"Not Found") |
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171 self._done() |
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172 return |
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173 |
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174 env = {} |
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175 env['GATEWAY_INTERFACE'] = 'CGI/1.1' |
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176 env['REQUEST_METHOD'] = self.command |
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177 env['SERVER_NAME'] = self.server.server_name |
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178 env['SERVER_PORT'] = str(self.server.server_port) |
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179 env['REQUEST_URI'] = self.path |
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180 env['SCRIPT_NAME'] = pycompat.sysstr(self.server.prefix) |
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181 env['PATH_INFO'] = pycompat.sysstr(path[len(self.server.prefix) :]) |
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182 env['REMOTE_HOST'] = self.client_address[0] |
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183 env['REMOTE_ADDR'] = self.client_address[0] |
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184 env['QUERY_STRING'] = query or '' |
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185 |
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186 if pycompat.ispy3: |
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187 if self.headers.get_content_type() is None: |
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188 env['CONTENT_TYPE'] = self.headers.get_default_type() |
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189 else: |
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190 env['CONTENT_TYPE'] = self.headers.get_content_type() |
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191 length = self.headers.get('content-length') |
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192 else: |
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193 if self.headers.typeheader is None: |
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194 env['CONTENT_TYPE'] = self.headers.type |
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195 else: |
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196 env['CONTENT_TYPE'] = self.headers.typeheader |
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197 length = self.headers.getheader('content-length') |
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198 if length: |
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199 env['CONTENT_LENGTH'] = length |
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200 for header in [ |
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201 h |
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202 for h in self.headers.keys() |
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203 if h.lower() not in ('content-type', 'content-length') |
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204 ]: |
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205 hkey = 'HTTP_' + header.replace('-', '_').upper() |
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206 hval = self.headers.get(header) |
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207 hval = hval.replace('\n', '').strip() |
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208 if hval: |
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209 env[hkey] = hval |
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210 env['SERVER_PROTOCOL'] = self.request_version |
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211 env['wsgi.version'] = (1, 0) |
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212 env['wsgi.url_scheme'] = pycompat.sysstr(self.url_scheme) |
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213 if env.get('HTTP_EXPECT', b'').lower() == b'100-continue': |
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214 self.rfile = common.continuereader(self.rfile, self.wfile.write) |
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215 |
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216 env['wsgi.input'] = self.rfile |
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217 env['wsgi.errors'] = _error_logger(self) |
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218 env['wsgi.multithread'] = isinstance( |
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219 self.server, socketserver.ThreadingMixIn |
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220 ) |
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221 if util.safehasattr(socketserver, b'ForkingMixIn'): |
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222 env['wsgi.multiprocess'] = isinstance( |
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223 self.server, socketserver.ForkingMixIn |
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224 ) |
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225 else: |
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226 env['wsgi.multiprocess'] = False |
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227 |
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228 env['wsgi.run_once'] = 0 |
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230 wsgiref.validate.check_environ(env) |
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231 |
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232 self.saved_status = None |
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233 self.saved_headers = [] |
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234 self.length = None |
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235 self._chunked = None |
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236 for chunk in self.server.application(env, self._start_response): |
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237 self._write(chunk) |
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238 if not self.sent_headers: |
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239 self.send_headers() |
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240 self._done() |
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241 |
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242 def send_headers(self): |
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243 if not self.saved_status: |
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244 raise AssertionError( |
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245 b"Sending headers before start_response() called" |
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246 ) |
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247 saved_status = self.saved_status.split(None, 1) |
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248 saved_status[0] = int(saved_status[0]) |
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249 self.send_response(*saved_status) |
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250 self.length = None |
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251 self._chunked = False |
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252 for h in self.saved_headers: |
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253 self.send_header(*h) |
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254 if h[0].lower() == 'content-length': |
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255 self.length = int(h[1]) |
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256 if self.length is None and saved_status[0] != common.HTTP_NOT_MODIFIED: |
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257 self._chunked = ( |
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258 not self.close_connection and self.request_version == 'HTTP/1.1' |
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259 ) |
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260 if self._chunked: |
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261 self.send_header('Transfer-Encoding', 'chunked') |
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262 else: |
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263 self.send_header('Connection', 'close') |
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264 self.end_headers() |
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265 self.sent_headers = True |
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266 |
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267 def _start_response(self, http_status, headers, exc_info=None): |
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268 assert isinstance(http_status, str) |
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269 code, msg = http_status.split(None, 1) |
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270 code = int(code) |
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271 self.saved_status = http_status |
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272 bad_headers = ('connection', 'transfer-encoding') |
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273 self.saved_headers = [ |
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274 h for h in headers if h[0].lower() not in bad_headers |
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275 ] |
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276 return self._write |
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277 |
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278 def _write(self, data): |
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279 if not self.saved_status: |
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280 raise AssertionError(b"data written before start_response() called") |
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281 elif not self.sent_headers: |
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282 self.send_headers() |
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283 if self.length is not None: |
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284 if len(data) > self.length: |
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285 raise AssertionError( |
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286 b"Content-length header sent, but more " |
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287 b"bytes than specified are being written." |
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288 ) |
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289 self.length = self.length - len(data) |
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290 elif self._chunked and data: |
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291 data = b'%x\r\n%s\r\n' % (len(data), data) |
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292 self.wfile.write(data) |
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293 self.wfile.flush() |
136 | 294 |
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295 def _done(self): |
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296 if self._chunked: |
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297 self.wfile.write(b'0\r\n\r\n') |
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298 self.wfile.flush() |
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299 |
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300 def version_string(self): |
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301 if self.server.serverheader: |
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302 return encoding.strfromlocal(self.server.serverheader) |
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303 return httpservermod.basehttprequesthandler.version_string(self) |
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304 |
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305 |
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306 class _httprequesthandlerssl(_httprequesthandler): |
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307 """HTTPS handler based on Python's ssl module""" |
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308 |
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309 url_scheme = b'https' |
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310 |
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311 @staticmethod |
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312 def preparehttpserver(httpserver, ui): |
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313 try: |
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314 from .. import sslutil |
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315 |
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316 sslutil.wrapserversocket |
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317 except ImportError: |
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318 raise error.Abort(_(b"SSL support is unavailable")) |
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319 |
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320 certfile = ui.config(b'web', b'certificate') |
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321 |
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322 # These config options are currently only meant for testing. Use |
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323 # at your own risk. |
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324 cafile = ui.config(b'devel', b'servercafile') |
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325 reqcert = ui.configbool(b'devel', b'serverrequirecert') |
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326 |
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327 httpserver.socket = sslutil.wrapserversocket( |
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328 httpserver.socket, |
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329 ui, |
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330 certfile=certfile, |
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331 cafile=cafile, |
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332 requireclientcert=reqcert, |
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333 ) |
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334 |
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335 def setup(self): |
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336 self.connection = self.request |
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337 self.rfile = self.request.makefile("rb", self.rbufsize) |
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338 self.wfile = self.request.makefile("wb", self.wbufsize) |
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339 |
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340 |
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341 try: |
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342 import threading |
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343 |
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344 threading.activeCount() # silence pyflakes and bypass demandimport |
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345 _mixin = socketserver.ThreadingMixIn |
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346 except ImportError: |
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347 if util.safehasattr(os, b"fork"): |
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348 _mixin = socketserver.ForkingMixIn |
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349 else: |
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350 |
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351 class _mixin(object): |
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352 pass |
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353 |
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354 |
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355 def openlog(opt, default): |
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356 if opt and opt != b'-': |
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357 return open(opt, b'ab') |
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358 return default |
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359 |
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360 |
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361 class MercurialHTTPServer(_mixin, httpservermod.httpserver, object): |
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362 |
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363 # SO_REUSEADDR has broken semantics on windows |
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365 allow_reuse_address = 0 |
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366 |
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367 def __init__(self, ui, app, addr, handler, **kwargs): |
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368 httpservermod.httpserver.__init__(self, addr, handler, **kwargs) |
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369 self.daemon_threads = True |
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370 self.application = app |
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371 |
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372 handler.preparehttpserver(self, ui) |
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373 |
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374 prefix = ui.config(b'web', b'prefix') |
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375 if prefix: |
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376 prefix = b'/' + prefix.strip(b'/') |
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377 self.prefix = prefix |
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378 |
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379 alog = openlog(ui.config(b'web', b'accesslog'), ui.fout) |
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380 elog = openlog(ui.config(b'web', b'errorlog'), ui.ferr) |
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381 self.accesslog = alog |
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382 self.errorlog = elog |
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383 |
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384 self.addr, self.port = self.socket.getsockname()[0:2] |
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385 self.fqaddr = self.server_name |
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386 |
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387 self.serverheader = ui.config(b'web', b'server-header') |
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388 |
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389 |
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390 class IPv6HTTPServer(MercurialHTTPServer): |
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391 address_family = getattr(socket, 'AF_INET6', None) |
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392 |
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393 def __init__(self, *args, **kwargs): |
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394 if self.address_family is None: |
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395 raise error.RepoError(_(b'IPv6 is not available on this system')) |
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396 super(IPv6HTTPServer, self).__init__(*args, **kwargs) |
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397 |
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398 |
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399 def create_server(ui, app): |
938 | 400 |
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401 if ui.config(b'web', b'certificate'): |
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402 handler = _httprequesthandlerssl |
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403 else: |
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404 handler = _httprequesthandler |
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405 |
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406 if ui.configbool(b'web', b'ipv6'): |
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407 cls = IPv6HTTPServer |
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408 else: |
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409 cls = MercurialHTTPServer |
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410 |
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411 # ugly hack due to python issue5853 (for threaded use) |
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412 try: |
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413 import mimetypes |
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414 |
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415 mimetypes.init() |
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416 except UnicodeDecodeError: |
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417 # Python 2.x's mimetypes module attempts to decode strings |
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418 # from Windows' ANSI APIs as ascii (fail), then re-encode them |
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419 # as ascii (clown fail), because the default Python Unicode |
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420 # codec is hardcoded as ascii. |
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421 |
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422 sys.argv # unwrap demand-loader so that reload() works |
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423 # resurrect sys.setdefaultencoding() |
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424 try: |
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425 importlib.reload(sys) |
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426 except AttributeError: |
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427 reload(sys) |
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428 oldenc = sys.getdefaultencoding() |
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429 sys.setdefaultencoding(b"latin1") # or any full 8-bit encoding |
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430 mimetypes.init() |
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431 sys.setdefaultencoding(oldenc) |
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432 |
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433 address = ui.config(b'web', b'address') |
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434 port = util.getport(ui.config(b'web', b'port')) |
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435 try: |
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436 return cls(ui, app, (address, port), handler) |
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437 except socket.error as inst: |
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438 raise error.Abort( |
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439 _(b"cannot start server at '%s:%d': %s") |
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440 % (address, port, encoding.strtolocal(inst.args[1])) |
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441 ) |