Mercurial > hg
annotate mercurial/hgweb/server.py @ 37788:ed5448edcbfa stable 4.6rc0
merge with default to begin 4.6 freeze
# no-check-commit because of many vendored packages
author | Augie Fackler <augie@google.com> |
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date | Wed, 18 Apr 2018 15:32:08 -0400 |
parents | 7de7bd407251 b5ca5d34fe8d |
children | 9f499d28efb4 |
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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> |
131 | 5 # |
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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 os |
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13 import socket |
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14 import sys |
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15 import traceback |
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16 import wsgiref.validate |
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17 |
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18 from ..i18n import _ |
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19 |
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20 from .. import ( |
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21 encoding, |
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22 error, |
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23 pycompat, |
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24 util, |
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25 ) |
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26 |
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27 httpservermod = util.httpserver |
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28 socketserver = util.socketserver |
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29 urlerr = util.urlerr |
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30 urlreq = util.urlreq |
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31 |
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32 from . import ( |
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33 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 class _error_logger(object): |
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49 def __init__(self, handler): |
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50 self.handler = handler |
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51 def flush(self): |
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52 pass |
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53 def write(self, str): |
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54 self.writelines(str.split('\n')) |
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55 def writelines(self, seq): |
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56 for msg in seq: |
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57 self.handler.log_error("HG error: %s", msg) |
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58 |
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59 class _httprequesthandler(httpservermod.basehttprequesthandler): |
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60 |
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61 url_scheme = 'http' |
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62 |
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63 @staticmethod |
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64 def preparehttpserver(httpserver, ui): |
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65 """Prepare .socket of new HTTPServer instance""" |
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66 |
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67 def __init__(self, *args, **kargs): |
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68 self.protocol_version = r'HTTP/1.1' |
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69 httpservermod.basehttprequesthandler.__init__(self, *args, **kargs) |
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70 |
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71 def _log_any(self, fp, format, *args): |
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72 fp.write(pycompat.sysbytes( |
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73 r"%s - - [%s] %s" % (self.client_address[0], |
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74 self.log_date_time_string(), |
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75 format % args)) + '\n') |
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76 fp.flush() |
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77 |
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78 def log_error(self, format, *args): |
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79 self._log_any(self.server.errorlog, format, *args) |
131 | 80 |
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81 def log_message(self, format, *args): |
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82 self._log_any(self.server.accesslog, format, *args) |
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84 def log_request(self, code=r'-', size=r'-'): |
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85 xheaders = [] |
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86 if util.safehasattr(self, 'headers'): |
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87 xheaders = [h for h in self.headers.items() |
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88 if h[0].startswith(r'x-')] |
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89 self.log_message(r'"%s" %s %s%s', |
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90 self.requestline, str(code), str(size), |
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91 r''.join([r' %s:%s' % h for h in sorted(xheaders)])) |
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92 |
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93 def do_write(self): |
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94 try: |
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95 self.do_hgweb() |
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96 except socket.error as inst: |
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97 if inst[0] != errno.EPIPE: |
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98 raise |
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99 |
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100 def do_POST(self): |
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101 try: |
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102 self.do_write() |
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103 except Exception: |
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104 self._start_response("500 Internal Server Error", []) |
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105 self._write("Internal Server Error") |
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106 self._done() |
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107 tb = r"".join(traceback.format_exception(*sys.exc_info())) |
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108 # We need a native-string newline to poke in the log |
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109 # message, because we won't get a newline when using an |
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110 # r-string. This is the easy way out. |
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111 newline = chr(10) |
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112 self.log_error(r"Exception happened during processing " |
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113 r"request '%s':%s%s", self.path, newline, tb) |
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114 |
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115 def do_PUT(self): |
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116 self.do_POST() |
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117 |
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118 def do_GET(self): |
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119 self.do_POST() |
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121 def do_hgweb(self): |
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122 self.sent_headers = False |
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123 path, query = _splitURI(self.path) |
138 | 124 |
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125 # Ensure the slicing of path below is valid |
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126 if (path != self.server.prefix |
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127 and not path.startswith(self.server.prefix + b'/')): |
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128 self._start_response(common.statusmessage(404), []) |
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129 self._write("Not Found") |
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130 self._done() |
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131 return |
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132 |
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133 env = {} |
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134 env[r'GATEWAY_INTERFACE'] = r'CGI/1.1' |
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135 env[r'REQUEST_METHOD'] = self.command |
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136 env[r'SERVER_NAME'] = self.server.server_name |
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137 env[r'SERVER_PORT'] = str(self.server.server_port) |
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138 env[r'REQUEST_URI'] = self.path |
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139 env[r'SCRIPT_NAME'] = pycompat.sysstr(self.server.prefix) |
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140 env[r'PATH_INFO'] = pycompat.sysstr(path[len(self.server.prefix):]) |
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141 env[r'REMOTE_HOST'] = self.client_address[0] |
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142 env[r'REMOTE_ADDR'] = self.client_address[0] |
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143 env[r'QUERY_STRING'] = query or r'' |
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144 |
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145 if pycompat.ispy3: |
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146 if self.headers.get_content_type() is None: |
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147 env[r'CONTENT_TYPE'] = self.headers.get_default_type() |
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148 else: |
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149 env[r'CONTENT_TYPE'] = self.headers.get_content_type() |
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150 length = self.headers.get(r'content-length') |
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151 else: |
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152 if self.headers.typeheader is None: |
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153 env[r'CONTENT_TYPE'] = self.headers.type |
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154 else: |
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155 env[r'CONTENT_TYPE'] = self.headers.typeheader |
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156 length = self.headers.getheader(r'content-length') |
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157 if length: |
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158 env[r'CONTENT_LENGTH'] = length |
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159 for header in [h for h in self.headers.keys() |
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160 if h not in (r'content-type', r'content-length')]: |
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161 hkey = r'HTTP_' + header.replace(r'-', r'_').upper() |
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162 hval = self.headers.get(header) |
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163 hval = hval.replace(r'\n', r'').strip() |
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164 if hval: |
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165 env[hkey] = hval |
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166 env[r'SERVER_PROTOCOL'] = self.request_version |
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167 env[r'wsgi.version'] = (1, 0) |
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168 env[r'wsgi.url_scheme'] = pycompat.sysstr(self.url_scheme) |
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169 if env.get(r'HTTP_EXPECT', '').lower() == '100-continue': |
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170 self.rfile = common.continuereader(self.rfile, self.wfile.write) |
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171 |
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172 env[r'wsgi.input'] = self.rfile |
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173 env[r'wsgi.errors'] = _error_logger(self) |
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174 env[r'wsgi.multithread'] = isinstance(self.server, |
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175 socketserver.ThreadingMixIn) |
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176 env[r'wsgi.multiprocess'] = isinstance(self.server, |
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177 socketserver.ForkingMixIn) |
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178 env[r'wsgi.run_once'] = 0 |
601 | 179 |
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180 wsgiref.validate.check_environ(env) |
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181 |
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182 self.saved_status = None |
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183 self.saved_headers = [] |
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184 self.length = None |
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185 self._chunked = None |
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186 for chunk in self.server.application(env, self._start_response): |
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187 self._write(chunk) |
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188 if not self.sent_headers: |
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189 self.send_headers() |
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190 self._done() |
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191 |
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192 def send_headers(self): |
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193 if not self.saved_status: |
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194 raise AssertionError("Sending headers before " |
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195 "start_response() called") |
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196 saved_status = self.saved_status.split(None, 1) |
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197 saved_status[0] = int(saved_status[0]) |
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198 self.send_response(*saved_status) |
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199 self.length = None |
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200 self._chunked = False |
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201 for h in self.saved_headers: |
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202 self.send_header(*h) |
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203 if h[0].lower() == 'content-length': |
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204 self.length = int(h[1]) |
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205 if (self.length is None and |
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206 saved_status[0] != common.HTTP_NOT_MODIFIED): |
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207 self._chunked = (not self.close_connection and |
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208 self.request_version == "HTTP/1.1") |
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209 if self._chunked: |
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210 self.send_header(r'Transfer-Encoding', r'chunked') |
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211 else: |
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212 self.send_header(r'Connection', r'close') |
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213 self.end_headers() |
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214 self.sent_headers = True |
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215 |
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216 def _start_response(self, http_status, headers, exc_info=None): |
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217 code, msg = http_status.split(None, 1) |
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218 code = int(code) |
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219 self.saved_status = http_status |
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220 bad_headers = ('connection', 'transfer-encoding') |
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221 self.saved_headers = [h for h in headers |
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222 if h[0].lower() not in bad_headers] |
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223 return self._write |
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224 |
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225 def _write(self, data): |
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226 if not self.saved_status: |
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227 raise AssertionError("data written before start_response() called") |
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228 elif not self.sent_headers: |
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229 self.send_headers() |
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230 if self.length is not None: |
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231 if len(data) > self.length: |
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232 raise AssertionError("Content-length header sent, but more " |
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233 "bytes than specified are being written.") |
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234 self.length = self.length - len(data) |
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235 elif self._chunked and data: |
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236 data = '%x\r\n%s\r\n' % (len(data), data) |
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237 self.wfile.write(data) |
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238 self.wfile.flush() |
136 | 239 |
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240 def _done(self): |
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241 if self._chunked: |
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242 self.wfile.write('0\r\n\r\n') |
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243 self.wfile.flush() |
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244 |
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245 def version_string(self): |
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246 if self.server.serverheader: |
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247 return self.server.serverheader |
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248 return httpservermod.basehttprequesthandler.version_string(self) |
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249 |
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250 class _httprequesthandlerssl(_httprequesthandler): |
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251 """HTTPS handler based on Python's ssl module""" |
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252 |
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253 url_scheme = 'https' |
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254 |
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255 @staticmethod |
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256 def preparehttpserver(httpserver, ui): |
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257 try: |
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258 from .. import sslutil |
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259 sslutil.modernssl |
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260 except ImportError: |
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261 raise error.Abort(_("SSL support is unavailable")) |
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262 |
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263 certfile = ui.config('web', 'certificate') |
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264 |
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265 # These config options are currently only meant for testing. Use |
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266 # at your own risk. |
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267 cafile = ui.config('devel', 'servercafile') |
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268 reqcert = ui.configbool('devel', 'serverrequirecert') |
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269 |
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270 httpserver.socket = sslutil.wrapserversocket(httpserver.socket, |
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271 ui, |
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272 certfile=certfile, |
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273 cafile=cafile, |
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274 requireclientcert=reqcert) |
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275 |
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276 def setup(self): |
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277 self.connection = self.request |
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278 self.rfile = self.request.makefile(r"rb", self.rbufsize) |
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279 self.wfile = self.request.makefile(r"wb", self.wbufsize) |
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280 |
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281 try: |
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282 import threading |
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283 threading.activeCount() # silence pyflakes and bypass demandimport |
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284 _mixin = socketserver.ThreadingMixIn |
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285 except ImportError: |
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286 if util.safehasattr(os, "fork"): |
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287 _mixin = socketserver.ForkingMixIn |
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288 else: |
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289 class _mixin(object): |
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290 pass |
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291 |
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292 def openlog(opt, default): |
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293 if opt and opt != '-': |
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294 return open(opt, 'ab') |
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295 return default |
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296 |
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297 class MercurialHTTPServer(_mixin, httpservermod.httpserver, object): |
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298 |
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299 # SO_REUSEADDR has broken semantics on windows |
34645 | 300 if pycompat.iswindows: |
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301 allow_reuse_address = 0 |
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302 |
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303 def __init__(self, ui, app, addr, handler, **kwargs): |
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304 httpservermod.httpserver.__init__(self, addr, handler, **kwargs) |
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305 self.daemon_threads = True |
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306 self.application = app |
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307 |
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308 handler.preparehttpserver(self, ui) |
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309 |
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configitems: register the 'web.prefix' config
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310 prefix = ui.config('web', 'prefix') |
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311 if prefix: |
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312 prefix = '/' + prefix.strip('/') |
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313 self.prefix = prefix |
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314 |
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315 alog = openlog(ui.config('web', 'accesslog'), ui.fout) |
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316 elog = openlog(ui.config('web', 'errorlog'), ui.ferr) |
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317 self.accesslog = alog |
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318 self.errorlog = elog |
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319 |
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320 self.addr, self.port = self.socket.getsockname()[0:2] |
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321 self.fqaddr = socket.getfqdn(addr[0]) |
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322 |
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323 self.serverheader = ui.config('web', 'server-header') |
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324 |
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325 class IPv6HTTPServer(MercurialHTTPServer): |
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326 address_family = getattr(socket, 'AF_INET6', None) |
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327 def __init__(self, *args, **kwargs): |
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328 if self.address_family is None: |
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329 raise error.RepoError(_('IPv6 is not available on this system')) |
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330 super(IPv6HTTPServer, self).__init__(*args, **kwargs) |
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331 |
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332 def create_server(ui, app): |
938 | 333 |
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334 if ui.config('web', 'certificate'): |
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335 handler = _httprequesthandlerssl |
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336 else: |
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337 handler = _httprequesthandler |
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338 |
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339 if ui.configbool('web', 'ipv6'): |
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340 cls = IPv6HTTPServer |
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341 else: |
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342 cls = MercurialHTTPServer |
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343 |
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344 # ugly hack due to python issue5853 (for threaded use) |
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345 try: |
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346 import mimetypes |
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347 mimetypes.init() |
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348 except UnicodeDecodeError: |
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349 # Python 2.x's mimetypes module attempts to decode strings |
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350 # from Windows' ANSI APIs as ascii (fail), then re-encode them |
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351 # as ascii (clown fail), because the default Python Unicode |
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352 # codec is hardcoded as ascii. |
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353 |
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354 sys.argv # unwrap demand-loader so that reload() works |
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355 reload(sys) # resurrect sys.setdefaultencoding() |
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356 oldenc = sys.getdefaultencoding() |
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357 sys.setdefaultencoding("latin1") # or any full 8-bit encoding |
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358 mimetypes.init() |
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359 sys.setdefaultencoding(oldenc) |
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360 |
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361 address = ui.config('web', 'address') |
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362 port = util.getport(ui.config('web', 'port')) |
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363 try: |
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364 return cls(ui, app, (address, port), handler) |
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365 except socket.error as inst: |
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366 raise error.Abort(_("cannot start server at '%s:%d': %s") |
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367 % (address, port, encoding.strtolocal(inst.args[1]))) |