author | Nishanth Amuluru <nishanth@fossee.in> |
Sat, 08 Jan 2011 11:20:57 +0530 | |
changeset 69 | c6bca38c1cbf |
permissions | -rw-r--r-- |
69
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# hgweb/server.py - The standalone hg web server. |
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# |
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# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> |
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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8 |
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import os, sys, errno, urllib, BaseHTTPServer, socket, SocketServer, traceback |
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from mercurial import util, error |
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from mercurial.i18n import _ |
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def _splitURI(uri): |
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""" Return path and query splited from uri |
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|
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Just like CGI environment, the path is unquoted, the query is |
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not. |
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""" |
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if '?' in uri: |
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path, query = uri.split('?', 1) |
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else: |
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path, query = uri, '' |
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return urllib.unquote(path), query |
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|
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class _error_logger(object): |
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def __init__(self, handler): |
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self.handler = handler |
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def flush(self): |
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pass |
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def write(self, str): |
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self.writelines(str.split('\n')) |
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def writelines(self, seq): |
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for msg in seq: |
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self.handler.log_error("HG error: %s", msg) |
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class _httprequesthandler(BaseHTTPServer.BaseHTTPRequestHandler): |
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url_scheme = 'http' |
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|
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@staticmethod |
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def preparehttpserver(httpserver, ssl_cert): |
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"""Prepare .socket of new HTTPServer instance""" |
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pass |
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def __init__(self, *args, **kargs): |
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self.protocol_version = 'HTTP/1.1' |
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BaseHTTPServer.BaseHTTPRequestHandler.__init__(self, *args, **kargs) |
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def _log_any(self, fp, format, *args): |
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fp.write("%s - - [%s] %s\n" % (self.client_address[0], |
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self.log_date_time_string(), |
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format % args)) |
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fp.flush() |
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def log_error(self, format, *args): |
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self._log_any(self.server.errorlog, format, *args) |
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def log_message(self, format, *args): |
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self._log_any(self.server.accesslog, format, *args) |
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def do_write(self): |
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try: |
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self.do_hgweb() |
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except socket.error, inst: |
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if inst[0] != errno.EPIPE: |
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raise |
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def do_POST(self): |
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try: |
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self.do_write() |
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except StandardError: |
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self._start_response("500 Internal Server Error", []) |
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self._write("Internal Server Error") |
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tb = "".join(traceback.format_exception(*sys.exc_info())) |
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self.log_error("Exception happened during processing " |
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"request '%s':\n%s", self.path, tb) |
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def do_GET(self): |
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self.do_POST() |
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def do_hgweb(self): |
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path, query = _splitURI(self.path) |
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env = {} |
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env['GATEWAY_INTERFACE'] = 'CGI/1.1' |
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env['REQUEST_METHOD'] = self.command |
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env['SERVER_NAME'] = self.server.server_name |
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env['SERVER_PORT'] = str(self.server.server_port) |
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env['REQUEST_URI'] = self.path |
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env['SCRIPT_NAME'] = self.server.prefix |
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env['PATH_INFO'] = path[len(self.server.prefix):] |
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env['REMOTE_HOST'] = self.client_address[0] |
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env['REMOTE_ADDR'] = self.client_address[0] |
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if query: |
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env['QUERY_STRING'] = query |
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|
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if self.headers.typeheader is None: |
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98 |
env['CONTENT_TYPE'] = self.headers.type |
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else: |
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env['CONTENT_TYPE'] = self.headers.typeheader |
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101 |
length = self.headers.getheader('content-length') |
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if length: |
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env['CONTENT_LENGTH'] = length |
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for header in [h for h in self.headers.keys() |
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105 |
if h not in ('content-type', 'content-length')]: |
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hkey = 'HTTP_' + header.replace('-', '_').upper() |
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hval = self.headers.getheader(header) |
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hval = hval.replace('\n', '').strip() |
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109 |
if hval: |
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110 |
env[hkey] = hval |
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env['SERVER_PROTOCOL'] = self.request_version |
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env['wsgi.version'] = (1, 0) |
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113 |
env['wsgi.url_scheme'] = self.url_scheme |
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114 |
env['wsgi.input'] = self.rfile |
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115 |
env['wsgi.errors'] = _error_logger(self) |
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116 |
env['wsgi.multithread'] = isinstance(self.server, |
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117 |
SocketServer.ThreadingMixIn) |
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118 |
env['wsgi.multiprocess'] = isinstance(self.server, |
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119 |
SocketServer.ForkingMixIn) |
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120 |
env['wsgi.run_once'] = 0 |
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121 |
|
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122 |
self.close_connection = True |
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123 |
self.saved_status = None |
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124 |
self.saved_headers = [] |
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125 |
self.sent_headers = False |
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126 |
self.length = None |
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127 |
for chunk in self.server.application(env, self._start_response): |
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128 |
self._write(chunk) |
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129 |
|
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130 |
def send_headers(self): |
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131 |
if not self.saved_status: |
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132 |
raise AssertionError("Sending headers before " |
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133 |
"start_response() called") |
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134 |
saved_status = self.saved_status.split(None, 1) |
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135 |
saved_status[0] = int(saved_status[0]) |
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136 |
self.send_response(*saved_status) |
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137 |
should_close = True |
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138 |
for h in self.saved_headers: |
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139 |
self.send_header(*h) |
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140 |
if h[0].lower() == 'content-length': |
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141 |
should_close = False |
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142 |
self.length = int(h[1]) |
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143 |
# The value of the Connection header is a list of case-insensitive |
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144 |
# tokens separated by commas and optional whitespace. |
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145 |
if 'close' in [token.strip().lower() for token in |
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146 |
self.headers.get('connection', '').split(',')]: |
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147 |
should_close = True |
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148 |
if should_close: |
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149 |
self.send_header('Connection', 'close') |
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150 |
self.close_connection = should_close |
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|
151 |
self.end_headers() |
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|
152 |
self.sent_headers = True |
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153 |
|
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154 |
def _start_response(self, http_status, headers, exc_info=None): |
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155 |
code, msg = http_status.split(None, 1) |
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156 |
code = int(code) |
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157 |
self.saved_status = http_status |
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|
158 |
bad_headers = ('connection', 'transfer-encoding') |
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|
159 |
self.saved_headers = [h for h in headers |
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160 |
if h[0].lower() not in bad_headers] |
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161 |
return self._write |
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|
162 |
|
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|
163 |
def _write(self, data): |
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|
164 |
if not self.saved_status: |
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165 |
raise AssertionError("data written before start_response() called") |
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|
166 |
elif not self.sent_headers: |
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|
167 |
self.send_headers() |
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|
168 |
if self.length is not None: |
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|
169 |
if len(data) > self.length: |
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|
170 |
raise AssertionError("Content-length header sent, but more " |
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|
171 |
"bytes than specified are being written.") |
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|
172 |
self.length = self.length - len(data) |
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|
173 |
self.wfile.write(data) |
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|
174 |
self.wfile.flush() |
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|
175 |
|
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|
176 |
class _httprequesthandleropenssl(_httprequesthandler): |
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|
177 |
"""HTTPS handler based on pyOpenSSL""" |
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|
178 |
|
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|
179 |
url_scheme = 'https' |
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|
180 |
|
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|
181 |
@staticmethod |
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|
182 |
def preparehttpserver(httpserver, ssl_cert): |
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|
183 |
try: |
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|
184 |
import OpenSSL |
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|
185 |
OpenSSL.SSL.Context |
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|
186 |
except ImportError: |
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|
187 |
raise util.Abort(_("SSL support is unavailable")) |
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|
188 |
ctx = OpenSSL.SSL.Context(OpenSSL.SSL.SSLv23_METHOD) |
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|
189 |
ctx.use_privatekey_file(ssl_cert) |
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|
190 |
ctx.use_certificate_file(ssl_cert) |
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|
191 |
sock = socket.socket(httpserver.address_family, httpserver.socket_type) |
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|
192 |
httpserver.socket = OpenSSL.SSL.Connection(ctx, sock) |
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|
193 |
httpserver.server_bind() |
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|
194 |
httpserver.server_activate() |
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|
195 |
|
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|
196 |
def setup(self): |
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|
197 |
self.connection = self.request |
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|
198 |
self.rfile = socket._fileobject(self.request, "rb", self.rbufsize) |
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|
199 |
self.wfile = socket._fileobject(self.request, "wb", self.wbufsize) |
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|
200 |
|
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|
201 |
def do_write(self): |
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|
202 |
import OpenSSL |
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|
203 |
try: |
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|
204 |
_httprequesthandler.do_write(self) |
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|
205 |
except OpenSSL.SSL.SysCallError, inst: |
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|
206 |
if inst.args[0] != errno.EPIPE: |
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|
207 |
raise |
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|
208 |
|
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|
209 |
def handle_one_request(self): |
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|
210 |
import OpenSSL |
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|
211 |
try: |
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|
212 |
_httprequesthandler.handle_one_request(self) |
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|
213 |
except (OpenSSL.SSL.SysCallError, OpenSSL.SSL.ZeroReturnError): |
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|
214 |
self.close_connection = True |
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|
215 |
pass |
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|
216 |
|
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|
217 |
class _httprequesthandlerssl(_httprequesthandler): |
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|
218 |
"""HTTPS handler based on Pythons ssl module (introduced in 2.6)""" |
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|
219 |
|
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|
220 |
url_scheme = 'https' |
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|
221 |
|
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|
222 |
@staticmethod |
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|
223 |
def preparehttpserver(httpserver, ssl_cert): |
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|
224 |
try: |
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|
225 |
import ssl |
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|
226 |
ssl.wrap_socket |
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|
227 |
except ImportError: |
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|
228 |
raise util.Abort(_("SSL support is unavailable")) |
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|
229 |
httpserver.socket = ssl.wrap_socket(httpserver.socket, server_side=True, |
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|
230 |
certfile=ssl_cert, ssl_version=ssl.PROTOCOL_SSLv23) |
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|
231 |
|
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|
232 |
def setup(self): |
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|
233 |
self.connection = self.request |
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self.rfile = socket._fileobject(self.request, "rb", self.rbufsize) |
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self.wfile = socket._fileobject(self.request, "wb", self.wbufsize) |
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236 |
|
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237 |
try: |
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238 |
from threading import activeCount |
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239 |
_mixin = SocketServer.ThreadingMixIn |
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240 |
except ImportError: |
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241 |
if hasattr(os, "fork"): |
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242 |
_mixin = SocketServer.ForkingMixIn |
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243 |
else: |
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244 |
class _mixin: |
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245 |
pass |
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246 |
|
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247 |
def openlog(opt, default): |
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if opt and opt != '-': |
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249 |
return open(opt, 'a') |
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250 |
return default |
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251 |
|
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252 |
class MercurialHTTPServer(object, _mixin, BaseHTTPServer.HTTPServer): |
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253 |
|
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254 |
# SO_REUSEADDR has broken semantics on windows |
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255 |
if os.name == 'nt': |
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256 |
allow_reuse_address = 0 |
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257 |
|
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258 |
def __init__(self, ui, app, addr, handler, **kwargs): |
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259 |
BaseHTTPServer.HTTPServer.__init__(self, addr, handler, **kwargs) |
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260 |
self.daemon_threads = True |
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261 |
self.application = app |
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262 |
|
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263 |
handler.preparehttpserver(self, ui.config('web', 'certificate')) |
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264 |
|
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265 |
prefix = ui.config('web', 'prefix', '') |
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266 |
if prefix: |
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267 |
prefix = '/' + prefix.strip('/') |
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268 |
self.prefix = prefix |
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269 |
|
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270 |
alog = openlog(ui.config('web', 'accesslog', '-'), sys.stdout) |
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271 |
elog = openlog(ui.config('web', 'errorlog', '-'), sys.stderr) |
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272 |
self.accesslog = alog |
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273 |
self.errorlog = elog |
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274 |
|
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275 |
self.addr, self.port = self.socket.getsockname()[0:2] |
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276 |
self.fqaddr = socket.getfqdn(addr[0]) |
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277 |
|
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278 |
class IPv6HTTPServer(MercurialHTTPServer): |
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279 |
address_family = getattr(socket, 'AF_INET6', None) |
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280 |
def __init__(self, *args, **kwargs): |
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281 |
if self.address_family is None: |
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282 |
raise error.RepoError(_('IPv6 is not available on this system')) |
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283 |
super(IPv6HTTPServer, self).__init__(*args, **kwargs) |
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284 |
|
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285 |
def create_server(ui, app): |
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286 |
|
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|
287 |
if ui.config('web', 'certificate'): |
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|
288 |
if sys.version_info >= (2, 6): |
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|
289 |
handler = _httprequesthandlerssl |
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|
290 |
else: |
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|
291 |
handler = _httprequesthandleropenssl |
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|
292 |
else: |
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|
293 |
handler = _httprequesthandler |
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|
294 |
|
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|
295 |
if ui.configbool('web', 'ipv6'): |
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|
296 |
cls = IPv6HTTPServer |
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|
297 |
else: |
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|
298 |
cls = MercurialHTTPServer |
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|
299 |
|
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|
300 |
# ugly hack due to python issue5853 (for threaded use) |
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|
301 |
import mimetypes; mimetypes.init() |
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|
302 |
|
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|
303 |
address = ui.config('web', 'address', '') |
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|
304 |
port = util.getport(ui.config('web', 'port', 8000)) |
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|
305 |
try: |
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|
306 |
return cls(ui, app, (address, port), handler) |
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|
307 |
except socket.error, inst: |
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|
308 |
raise util.Abort(_("cannot start server at '%s:%d': %s") |
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|
309 |
% (address, port, inst.args[1])) |