Mercurial > kallithea

annotate rhodecode/lib/middleware/simplehg.py @ 665:070f32743632 beta

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Moved out reposcan into hg Model. Rewrote repo scann and caching of repositories, all is in hgModel. Changed invalidate cache calls. mergeds main repo list and repo switcher list into one new based on hgModel.
author Marcin Kuzminski <marcin@python-works.com>
date Sun, 07 Nov 2010 15:02:56 +0100
parents aefc371a2531
children 99875a8f2ad1
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1 #!/usr/bin/env python
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2 # encoding: utf-8
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3 # middleware to handle mercurial api calls
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4 # Copyright (C) 2009-2010 Marcin Kuzminski <marcin@python-works.com>
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5 #
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6 # This program is free software; you can redistribute it and/or
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7 # modify it under the terms of the GNU General Public License
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8 # as published by the Free Software Foundation; version 2
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9 # of the License or (at your opinion) any later version of the license.
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10 #
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU General Public License for more details.
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15 #
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16 # You should have received a copy of the GNU General Public License
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17 # along with this program; if not, write to the Free Software
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18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 # MA 02110-1301, USA.
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20 """
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21 Created on 2010-04-28
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22
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23 @author: marcink
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24 SimpleHG middleware for handling mercurial protocol request (push/clone etc.)
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25 It's implemented with basic auth function
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26 """
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27 from itertools import chain
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28 from mercurial.error import RepoError
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29 from mercurial.hgweb import hgweb
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30 from mercurial.hgweb.request import wsgiapplication
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31 from paste.auth.basic import AuthBasicAuthenticator
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32 from paste.httpheaders import REMOTE_USER, AUTH_TYPE
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33 from rhodecode.lib.auth import authfunc, HasPermissionAnyMiddleware
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34 from rhodecode.lib.utils import is_mercurial, make_ui, invalidate_cache, \
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35 check_repo_fast, ui_sections
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36 from rhodecode.model.user import UserModel
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37 from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError
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38 import logging
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39 import os
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40 import traceback
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41
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42 log = logging.getLogger(__name__)
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43
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44 class SimpleHg(object):
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45
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46 def __init__(self, application, config):
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47 self.application = application
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48 self.config = config
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49 #authenticate this mercurial request using
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50 self.authenticate = AuthBasicAuthenticator('', authfunc)
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51 self.ipaddr = '0.0.0.0'
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52 self.repository = None
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53 self.username = None
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54 self.action = None
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55
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56 def __call__(self, environ, start_response):
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57 if not is_mercurial(environ):
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58 return self.application(environ, start_response)
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59
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60 proxy_key = 'HTTP_X_REAL_IP'
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61 def_key = 'REMOTE_ADDR'
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62 self.ipaddr = environ.get(proxy_key, environ.get(def_key, '0.0.0.0'))
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63
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64 #===================================================================
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65 # AUTHENTICATE THIS MERCURIAL REQUEST
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66 #===================================================================
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67 username = REMOTE_USER(environ)
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68
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69 if not username:
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70 self.authenticate.realm = self.config['rhodecode_realm']
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71 result = self.authenticate(environ)
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72 if isinstance(result, str):
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73 AUTH_TYPE.update(environ, 'basic')
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74 REMOTE_USER.update(environ, result)
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75 else:
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76 return result.wsgi_application(environ, start_response)
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77
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78 #=======================================================================
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79 # GET REPOSITORY
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80 #=======================================================================
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81 try:
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82 repo_name = '/'.join(environ['PATH_INFO'].split('/')[1:])
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83 if repo_name.endswith('/'):
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84 repo_name = repo_name.rstrip('/')
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85 self.repository = repo_name
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86 except:
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87 log.error(traceback.format_exc())
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88 return HTTPInternalServerError()(environ, start_response)
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89
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90 #===================================================================
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91 # CHECK PERMISSIONS FOR THIS REQUEST
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92 #===================================================================
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93 self.action = self.__get_action(environ)
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94 if self.action:
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95 username = self.__get_environ_user(environ)
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96 try:
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97 user = self.__get_user(username)
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98 self.username = user.username
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99 except:
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100 log.error(traceback.format_exc())
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101 return HTTPInternalServerError()(environ, start_response)
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102
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103 #check permissions for this repository
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104 if self.action == 'push':
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105 if not HasPermissionAnyMiddleware('repository.write',
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106 'repository.admin')\
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107 (user, repo_name):
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108 return HTTPForbidden()(environ, start_response)
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109
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110 else:
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111 #any other action need at least read permission
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112 if not HasPermissionAnyMiddleware('repository.read',
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113 'repository.write',
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114 'repository.admin')\
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115 (user, repo_name):
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116 return HTTPForbidden()(environ, start_response)
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117
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118 self.extras = {'ip':self.ipaddr,
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119 'username':self.username,
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120 'action':self.action,
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121 'repository':self.repository}
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122
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123 #===================================================================
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124 # MERCURIAL REQUEST HANDLING
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125 #===================================================================
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126 environ['PATH_INFO'] = '/'#since we wrap into hgweb, reset the path
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127 self.baseui = make_ui('db')
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128 self.basepath = self.config['base_path']
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129 self.repo_path = os.path.join(self.basepath, repo_name)
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130
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131 #quick check if that dir exists...
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132 if check_repo_fast(repo_name, self.basepath):
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133 return HTTPNotFound()(environ, start_response)
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134 try:
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135 app = wsgiapplication(self.__make_app)
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136 except RepoError, e:
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137 if str(e).find('not found') != -1:
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138 return HTTPNotFound()(environ, start_response)
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139 except Exception:
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140 log.error(traceback.format_exc())
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141 return HTTPInternalServerError()(environ, start_response)
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142
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143 #invalidate cache on push
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144 if self.action == 'push':
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145 self.__invalidate_cache(repo_name)
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146 messages = []
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147 messages.append('thank you for using rhodecode')
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148
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149 return self.msg_wrapper(app, environ, start_response, messages)
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150 else:
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151 return app(environ, start_response)
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152
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153
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154 def msg_wrapper(self, app, environ, start_response, messages=[]):
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155 """
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156 Wrapper for custom messages that come out of mercurial respond messages
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157 is a list of messages that the user will see at the end of response
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158 from merurial protocol actions that involves remote answers
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159 :param app:
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160 :param environ:
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161 :param start_response:
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162 """
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163 def custom_messages(msg_list):
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164 for msg in msg_list:
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165 yield msg + '\n'
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166 org_response = app(environ, start_response)
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167 return chain(org_response, custom_messages(messages))
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168
197
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169 def __make_app(self):
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170 hgserve = hgweb(str(self.repo_path), baseui=self.baseui)
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171 return self.__load_web_settings(hgserve, self.extras)
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172
197
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173 def __get_environ_user(self, environ):
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174 return environ.get('REMOTE_USER')
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175
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176 def __get_user(self, username):
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177 return UserModel().get_by_username(username, cache=True)
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178
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179 def __get_action(self, environ):
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180 """
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181 Maps mercurial request commands into a clone,pull or push command.
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182 This should always return a valid command string
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183 :param environ:
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184 """
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185 mapping = {'changegroup': 'pull',
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186 'changegroupsubset': 'pull',
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187 'stream_out': 'pull',
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188 'listkeys': 'pull',
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189 'unbundle': 'push',
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190 'pushkey': 'push', }
197
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191 for qry in environ['QUERY_STRING'].split('&'):
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192 if qry.startswith('cmd'):
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193 cmd = qry.split('=')[-1]
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194 if mapping.has_key(cmd):
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195 return mapping[cmd]
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196 else:
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197 return cmd
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198
197
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199 def __invalidate_cache(self, repo_name):
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200 """we know that some change was made to repositories and we should
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201 invalidate the cache to see the changes right away but only for
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202 push requests"""
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203 invalidate_cache('get_repo_cached_%s' % repo_name)
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204
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205
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206 def __load_web_settings(self, hgserve, extras={}):
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207 #set the global ui for hgserve instance passed
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208 hgserve.repo.ui = self.baseui
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209
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210 hgrc = os.path.join(self.repo_path, '.hg', 'hgrc')
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211
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212 #inject some additional parameters that will be available in ui
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213 #for hooks
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214 for k, v in extras.items():
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215 hgserve.repo.ui.setconfig('rhodecode_extras', k, v)
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216
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217 repoui = make_ui('file', hgrc, False)
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218
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219 if repoui:
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220 #overwrite our ui instance with the section from hgrc file
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221 for section in ui_sections:
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222 for k, v in repoui.configitems(section):
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223 hgserve.repo.ui.setconfig(section, k, v)
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224
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225 return hgserve
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226
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227
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228
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229
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230
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239