Mercurial > kallithea
annotate rhodecode/lib/middleware/simplegit.py @ 625:d5372213db98
some hacking on simplegit middleware
author | Marcin Kuzminski <marcin@python-works.com> |
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date | Wed, 20 Oct 2010 02:08:03 +0200 |
parents | 19a62a5490fe |
children | fd63782c4426 |
rev | line source |
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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 git 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 from dulwich import server as dulserver |
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21 |
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22 class SimpleGitUploadPackHandler(dulserver.UploadPackHandler): |
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23 |
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24 def handle(self): |
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25 write = lambda x: self.proto.write_sideband(1, x) |
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26 |
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27 graph_walker = dulserver.ProtocolGraphWalker(self, self.repo.object_store, |
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28 self.repo.get_peeled) |
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29 objects_iter = self.repo.fetch_objects( |
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30 graph_walker.determine_wants, graph_walker, self.progress, |
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31 get_tagged=self.get_tagged) |
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32 |
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33 # Do they want any objects? |
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34 if len(objects_iter) == 0: |
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35 return |
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36 |
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37 self.progress("counting objects: %d, done.\n" % len(objects_iter)) |
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38 dulserver.write_pack_data(dulserver.ProtocolFile(None, write), objects_iter, |
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39 len(objects_iter)) |
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40 messages = [] |
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41 messages.append('thank you for using rhodecode') |
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42 |
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43 for msg in messages: |
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44 self.progress(msg + "\n") |
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45 # we are done |
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46 self.proto.write("0000") |
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47 |
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48 dulserver.DEFAULT_HANDLERS = { |
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49 'git-upload-pack': SimpleGitUploadPackHandler, |
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50 'git-receive-pack': dulserver.ReceivePackHandler, |
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51 } |
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52 |
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53 from dulwich.repo import Repo |
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54 from dulwich.web import HTTPGitApplication |
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55 from paste.auth.basic import AuthBasicAuthenticator |
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56 from paste.httpheaders import REMOTE_USER, AUTH_TYPE |
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57 from rhodecode.lib.auth import authfunc, HasPermissionAnyMiddleware, \ |
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58 get_user_cached |
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59 from rhodecode.lib.utils import action_logger, is_git, invalidate_cache, \ |
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60 check_repo_fast |
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61 from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError |
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62 import logging |
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63 import os |
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64 import traceback |
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65 """ |
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66 Created on 2010-04-28 |
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67 |
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68 @author: marcink |
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69 SimpleGit middleware for handling git protocol request (push/clone etc.) |
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70 It's implemented with basic auth function |
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71 """ |
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72 |
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73 |
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74 |
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75 log = logging.getLogger(__name__) |
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76 |
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77 class SimpleGit(object): |
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78 |
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79 def __init__(self, application, config): |
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80 self.application = application |
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81 self.config = config |
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82 #authenticate this git request using |
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83 self.authenticate = AuthBasicAuthenticator('', authfunc) |
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84 |
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85 def __call__(self, environ, start_response): |
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86 if not is_git(environ): |
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87 return self.application(environ, start_response) |
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88 |
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89 #=================================================================== |
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90 # AUTHENTICATE THIS GIT REQUEST |
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91 #=================================================================== |
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92 username = REMOTE_USER(environ) |
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93 if not username: |
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94 self.authenticate.realm = self.config['rhodecode_realm'] |
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95 result = self.authenticate(environ) |
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96 if isinstance(result, str): |
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97 AUTH_TYPE.update(environ, 'basic') |
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98 REMOTE_USER.update(environ, result) |
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99 else: |
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100 return result.wsgi_application(environ, start_response) |
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101 |
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102 try: |
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103 self.repo_name = environ['PATH_INFO'].split('/')[1] |
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104 if self.repo_name.endswith('/'): |
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105 self.repo_name = self.repo_name.rstrip('/') |
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106 except: |
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107 log.error(traceback.format_exc()) |
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108 return HTTPInternalServerError()(environ, start_response) |
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109 |
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110 #=================================================================== |
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111 # CHECK PERMISSIONS FOR THIS REQUEST |
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112 #=================================================================== |
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113 action = self.__get_action(environ) |
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114 if action: |
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115 username = self.__get_environ_user(environ) |
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116 try: |
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117 user = self.__get_user(username) |
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118 except: |
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119 log.error(traceback.format_exc()) |
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120 return HTTPInternalServerError()(environ, start_response) |
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121 |
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122 #check permissions for this repository |
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123 if action == 'push': |
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124 if not HasPermissionAnyMiddleware('repository.write', |
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125 'repository.admin')\ |
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126 (user, self.repo_name): |
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127 return HTTPForbidden()(environ, start_response) |
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128 |
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129 else: |
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130 #any other action need at least read permission |
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131 if not HasPermissionAnyMiddleware('repository.read', |
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132 'repository.write', |
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133 'repository.admin')\ |
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134 (user, self.repo_name): |
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135 return HTTPForbidden()(environ, start_response) |
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136 |
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137 #log action |
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138 if action in ('push', 'pull', 'clone'): |
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139 proxy_key = 'HTTP_X_REAL_IP' |
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140 def_key = 'REMOTE_ADDR' |
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141 ipaddr = environ.get(proxy_key, environ.get(def_key, '0.0.0.0')) |
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142 self.__log_user_action(user, action, self.repo_name, ipaddr) |
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143 |
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144 #=================================================================== |
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145 # GIT REQUEST HANDLING |
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146 #=================================================================== |
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147 self.basepath = self.config['base_path'] |
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148 self.repo_path = os.path.join(self.basepath, self.repo_name) |
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149 #quick check if that dir exists... |
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150 if check_repo_fast(self.repo_name, self.basepath): |
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151 return HTTPNotFound()(environ, start_response) |
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152 try: |
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153 app = self.__make_app() |
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154 except Exception: |
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155 log.error(traceback.format_exc()) |
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156 return HTTPInternalServerError()(environ, start_response) |
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157 |
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158 #invalidate cache on push |
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159 if action == 'push': |
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160 self.__invalidate_cache(self.repo_name) |
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161 messages = [] |
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162 messages.append('thank you for using rhodecode') |
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163 return app(environ, start_response) |
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164 else: |
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165 return app(environ, start_response) |
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166 |
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167 |
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168 def __make_app(self): |
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169 backend = dulserver.DictBackend({'/' + self.repo_name: Repo(self.repo_path)}) |
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170 gitserve = HTTPGitApplication(backend) |
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171 |
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172 return gitserve |
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173 |
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174 def __get_environ_user(self, environ): |
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175 return environ.get('REMOTE_USER') |
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176 |
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177 def __get_user(self, username): |
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178 return get_user_cached(username) |
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179 |
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180 def __get_action(self, environ): |
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181 """ |
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182 Maps git request commands into a pull or push command. |
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183 :param environ: |
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184 """ |
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185 service = environ['QUERY_STRING'].split('=') |
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186 if len(service) > 1: |
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187 service_cmd = service[1] |
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188 mapping = {'git-receive-pack': 'push', |
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189 'git-upload-pack': 'pull', |
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190 } |
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191 |
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192 return mapping.get(service_cmd, service_cmd if service_cmd else 'other') |
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193 else: |
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194 return 'other' |
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195 |
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196 def __log_user_action(self, user, action, repo, ipaddr): |
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197 action_logger(user, action, repo, ipaddr) |
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198 |
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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('cached_repo_list') |
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204 invalidate_cache('full_changelog', repo_name) |