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1 | 1 | # -*- coding: utf-8 -*- |
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2 | 2 | """ |
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3 | 3 | rhodecode.lib.middleware.simplegit |
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4 | 4 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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5 | 5 | |
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6 | 6 | SimpleGit middleware for handling git protocol request (push/clone etc.) |
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7 | 7 | It's implemented with basic auth function |
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8 | 8 | |
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9 | 9 | :created_on: Apr 28, 2010 |
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10 | 10 | :author: marcink |
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11 | 11 | :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com> |
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12 | 12 | :license: GPLv3, see COPYING for more details. |
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13 | 13 | """ |
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14 | 14 | # This program is free software: you can redistribute it and/or modify |
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15 | 15 | # it under the terms of the GNU General Public License as published by |
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16 | 16 | # the Free Software Foundation, either version 3 of the License, or |
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17 | 17 | # (at your option) any later version. |
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18 | 18 | # |
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19 | 19 | # This program is distributed in the hope that it will be useful, |
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20 | 20 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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21 | 21 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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22 | 22 | # GNU General Public License for more details. |
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23 | 23 | # |
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24 | 24 | # You should have received a copy of the GNU General Public License |
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25 | 25 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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26 | 26 | |
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27 | 27 | import os |
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28 | 28 | import re |
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29 | 29 | import logging |
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30 | 30 | import traceback |
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31 | 31 | |
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32 | 32 | from dulwich import server as dulserver |
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33 | 33 | |
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34 | 34 | |
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35 | 35 | class SimpleGitUploadPackHandler(dulserver.UploadPackHandler): |
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36 | 36 | |
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37 | 37 | def handle(self): |
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38 | 38 | write = lambda x: self.proto.write_sideband(1, x) |
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39 | 39 | |
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40 | 40 | graph_walker = dulserver.ProtocolGraphWalker(self, |
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41 | 41 | self.repo.object_store, |
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42 | 42 | self.repo.get_peeled) |
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43 | 43 | objects_iter = self.repo.fetch_objects( |
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44 | 44 | graph_walker.determine_wants, graph_walker, self.progress, |
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45 | 45 | get_tagged=self.get_tagged) |
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46 | 46 | |
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47 | 47 | # Did the process short-circuit (e.g. in a stateless RPC call)? Note |
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48 | 48 | # that the client still expects a 0-object pack in most cases. |
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49 | 49 | if objects_iter is None: |
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50 | 50 | return |
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51 | 51 | |
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52 | 52 | self.progress("counting objects: %d, done.\n" % len(objects_iter)) |
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53 | 53 | dulserver.write_pack_objects(dulserver.ProtocolFile(None, write), |
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54 | 54 | objects_iter) |
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55 | 55 | messages = [] |
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56 | 56 | messages.append('thank you for using rhodecode') |
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57 | 57 | |
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58 | 58 | for msg in messages: |
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59 | 59 | self.progress(msg + "\n") |
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60 | 60 | # we are done |
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61 | 61 | self.proto.write("0000") |
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62 | 62 | |
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63 | 63 | |
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64 | 64 | dulserver.DEFAULT_HANDLERS = { |
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65 | 65 | #git-ls-remote, git-clone, git-fetch and git-pull |
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66 | 66 | 'git-upload-pack': SimpleGitUploadPackHandler, |
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67 | 67 | #git-push |
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68 | 68 | 'git-receive-pack': dulserver.ReceivePackHandler, |
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69 | 69 | } |
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70 | 70 | |
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71 | 71 | # not used for now until dulwich get's fixed |
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72 | 72 | #from dulwich.repo import Repo |
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73 | 73 | #from dulwich.web import make_wsgi_chain |
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74 | 74 | |
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75 | 75 | from paste.httpheaders import REMOTE_USER, AUTH_TYPE |
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76 | 76 | |
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77 | 77 | from rhodecode.lib.utils2 import safe_str |
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78 | 78 | from rhodecode.lib.base import BaseVCSController |
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79 | 79 | from rhodecode.lib.auth import get_container_username |
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80 | 80 | from rhodecode.lib.utils import is_valid_repo, make_ui |
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81 | 81 | from rhodecode.model.db import User, RhodeCodeUi |
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82 | 82 | |
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83 | 83 | from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError |
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84 | 84 | |
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85 | 85 | log = logging.getLogger(__name__) |
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86 | 86 | |
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87 | 87 | |
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88 | 88 | GIT_PROTO_PAT = re.compile(r'^/(.+)/(info/refs|git-upload-pack|git-receive-pack)') |
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89 | 89 | |
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90 | 90 | |
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91 | 91 | def is_git(environ): |
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92 | 92 | path_info = environ['PATH_INFO'] |
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93 | 93 | isgit_path = GIT_PROTO_PAT.match(path_info) |
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94 | 94 | log.debug('pathinfo: %s detected as GIT %s' % ( |
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95 | 95 | path_info, isgit_path != None) |
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96 | 96 | ) |
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97 | 97 | return isgit_path |
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98 | 98 | |
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99 | 99 | |
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100 | 100 | class SimpleGit(BaseVCSController): |
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101 | 101 | |
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102 | 102 | def _handle_request(self, environ, start_response): |
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103 | 103 | |
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104 | 104 | if not is_git(environ): |
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105 | 105 | return self.application(environ, start_response) |
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106 | 106 | |
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107 | 107 | ipaddr = self._get_ip_addr(environ) |
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108 | 108 | username = None |
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109 | 109 | self._git_first_op = False |
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110 | 110 | # skip passing error to error controller |
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111 | 111 | environ['pylons.status_code_redirect'] = True |
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112 | 112 | |
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113 | 113 | #====================================================================== |
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114 | 114 | # EXTRACT REPOSITORY NAME FROM ENV |
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115 | 115 | #====================================================================== |
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116 | 116 | try: |
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117 | 117 | repo_name = self.__get_repository(environ) |
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118 | 118 | log.debug('Extracted repo name is %s' % repo_name) |
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119 | 119 | except: |
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120 | 120 | return HTTPInternalServerError()(environ, start_response) |
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121 | 121 | |
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122 | 122 | # quick check if that dir exists... |
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123 | 123 | if is_valid_repo(repo_name, self.basepath) is False: |
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124 | 124 | return HTTPNotFound()(environ, start_response) |
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125 | 125 | |
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126 | 126 | #====================================================================== |
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127 | 127 | # GET ACTION PULL or PUSH |
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128 | 128 | #====================================================================== |
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129 | 129 | action = self.__get_action(environ) |
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130 | 130 | |
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131 | 131 | #====================================================================== |
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132 | 132 | # CHECK ANONYMOUS PERMISSION |
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133 | 133 | #====================================================================== |
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134 | 134 | if action in ['pull', 'push']: |
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135 | 135 | anonymous_user = self.__get_user('default') |
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136 | 136 | username = anonymous_user.username |
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137 | 137 | anonymous_perm = self._check_permission(action, anonymous_user, |
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138 | 138 | repo_name) |
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139 | 139 | |
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140 | 140 | if anonymous_perm is not True or anonymous_user.active is False: |
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141 | 141 | if anonymous_perm is not True: |
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142 | 142 | log.debug('Not enough credentials to access this ' |
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143 | 143 | 'repository as anonymous user') |
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144 | 144 | if anonymous_user.active is False: |
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145 | 145 | log.debug('Anonymous access is disabled, running ' |
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146 | 146 | 'authentication') |
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147 | 147 | #============================================================== |
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148 | 148 | # DEFAULT PERM FAILED OR ANONYMOUS ACCESS IS DISABLED SO WE |
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149 | 149 | # NEED TO AUTHENTICATE AND ASK FOR AUTH USER PERMISSIONS |
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150 | 150 | #============================================================== |
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151 | 151 | |
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152 | 152 | # Attempting to retrieve username from the container |
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153 | 153 | username = get_container_username(environ, self.config) |
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154 | 154 | |
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155 | 155 | # If not authenticated by the container, running basic auth |
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156 | 156 | if not username: |
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157 | 157 | self.authenticate.realm = \ |
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158 | 158 | safe_str(self.config['rhodecode_realm']) |
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159 | 159 | result = self.authenticate(environ) |
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160 | 160 | if isinstance(result, str): |
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161 | 161 | AUTH_TYPE.update(environ, 'basic') |
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162 | 162 | REMOTE_USER.update(environ, result) |
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163 | 163 | username = result |
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164 | 164 | else: |
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165 | 165 | return result.wsgi_application(environ, start_response) |
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166 | 166 | |
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167 | 167 | #============================================================== |
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168 | 168 | # CHECK PERMISSIONS FOR THIS REQUEST USING GIVEN USERNAME |
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169 | 169 | #============================================================== |
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170 | 170 | if action in ['pull', 'push']: |
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171 | 171 | try: |
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172 | 172 | user = self.__get_user(username) |
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173 | 173 | if user is None or not user.active: |
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174 | 174 | return HTTPForbidden()(environ, start_response) |
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175 | 175 | username = user.username |
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176 | 176 | except: |
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177 | 177 | log.error(traceback.format_exc()) |
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178 | 178 | return HTTPInternalServerError()(environ, |
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179 | 179 | start_response) |
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180 | 180 | |
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181 | 181 | #check permissions for this repository |
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182 | 182 | perm = self._check_permission(action, user, repo_name) |
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183 | 183 | if perm is not True: |
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184 | 184 | return HTTPForbidden()(environ, start_response) |
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185 | 185 | extras = { |
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186 | 186 | 'ip': ipaddr, |
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187 | 187 | 'username': username, |
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188 | 188 | 'action': action, |
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189 | 189 | 'repository': repo_name, |
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190 | 190 | 'scm': 'git', |
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191 | 191 | } |
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192 | 192 | |
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193 | 193 | #=================================================================== |
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194 | 194 | # GIT REQUEST HANDLING |
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195 | 195 | #=================================================================== |
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196 | 196 | repo_path = os.path.join(safe_str(self.basepath), safe_str(repo_name)) |
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197 | 197 | log.debug('Repository path is %s' % repo_path) |
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198 | 198 | |
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199 | 199 | baseui = make_ui('db') |
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200 | 200 | self.__inject_extras(repo_path, baseui, extras) |
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201 | 201 | |
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202 | 202 | try: |
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203 | 203 | # invalidate cache on push |
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204 | 204 | if action == 'push': |
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205 | 205 | self._invalidate_cache(repo_name) |
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206 | 206 | self._handle_githooks(repo_name, action, baseui, environ) |
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207 | 207 | |
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208 | 208 | log.info('%s action on GIT repo "%s"' % (action, repo_name)) |
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209 | 209 | app = self.__make_app(repo_name, repo_path, username) |
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210 | 210 | return app(environ, start_response) |
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211 | 211 | except Exception: |
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212 | 212 | log.error(traceback.format_exc()) |
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213 | 213 | return HTTPInternalServerError()(environ, start_response) |
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214 | 214 | |
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215 | 215 | def __make_app(self, repo_name, repo_path, username): |
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216 | 216 | """ |
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217 | 217 | Make an wsgi application using dulserver |
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218 | 218 | |
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219 | 219 | :param repo_name: name of the repository |
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220 | 220 | :param repo_path: full path to the repository |
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221 | 221 | """ |
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222 | 222 | |
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223 | 223 | from rhodecode.lib.middleware.pygrack import make_wsgi_app |
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224 | 224 | app = make_wsgi_app( |
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225 |
repo_root= |
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225 | repo_root=safe_str(self.basepath), | |
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226 | 226 | repo_name=repo_name, |
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227 | 227 | username=username, |
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228 | 228 | ) |
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229 | 229 | return app |
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230 | 230 | |
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231 | 231 | def __get_repository(self, environ): |
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232 | 232 | """ |
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233 | 233 | Get's repository name out of PATH_INFO header |
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234 | 234 | |
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235 | 235 | :param environ: environ where PATH_INFO is stored |
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236 | 236 | """ |
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237 | 237 | try: |
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238 | 238 | environ['PATH_INFO'] = self._get_by_id(environ['PATH_INFO']) |
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239 | 239 | repo_name = GIT_PROTO_PAT.match(environ['PATH_INFO']).group(1) |
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240 | 240 | except: |
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241 | 241 | log.error(traceback.format_exc()) |
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242 | 242 | raise |
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243 | 243 | |
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244 | 244 | return repo_name |
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245 | 245 | |
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246 | 246 | def __get_user(self, username): |
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247 | 247 | return User.get_by_username(username) |
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248 | 248 | |
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249 | 249 | def __get_action(self, environ): |
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250 | 250 | """ |
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251 | 251 | Maps git request commands into a pull or push command. |
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252 | 252 | |
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253 | 253 | :param environ: |
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254 | 254 | """ |
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255 | 255 | service = environ['QUERY_STRING'].split('=') |
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256 | 256 | |
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257 | 257 | if len(service) > 1: |
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258 | 258 | service_cmd = service[1] |
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259 | 259 | mapping = { |
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260 | 260 | 'git-receive-pack': 'push', |
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261 | 261 | 'git-upload-pack': 'pull', |
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262 | 262 | } |
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263 | 263 | op = mapping[service_cmd] |
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264 | 264 | self._git_stored_op = op |
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265 | 265 | return op |
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266 | 266 | else: |
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267 | 267 | # try to fallback to stored variable as we don't know if the last |
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268 | 268 | # operation is pull/push |
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269 | 269 | op = getattr(self, '_git_stored_op', 'pull') |
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270 | 270 | return op |
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271 | 271 | |
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272 | 272 | def _handle_githooks(self, repo_name, action, baseui, environ): |
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273 | 273 | """ |
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274 | 274 | Handles pull action, push is handled by post-receive hook |
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275 | 275 | """ |
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276 | 276 | from rhodecode.lib.hooks import log_pull_action |
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277 | 277 | service = environ['QUERY_STRING'].split('=') |
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278 | 278 | if len(service) < 2: |
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279 | 279 | return |
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280 | 280 | |
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281 | 281 | from rhodecode.model.db import Repository |
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282 | 282 | _repo = Repository.get_by_repo_name(repo_name) |
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283 | 283 | _repo = _repo.scm_instance |
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284 | 284 | _repo._repo.ui = baseui |
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285 | 285 | |
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286 | 286 | _hooks = dict(baseui.configitems('hooks')) or {} |
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287 | 287 | if action == 'pull' and _hooks.get(RhodeCodeUi.HOOK_PULL): |
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288 | 288 | log_pull_action(ui=baseui, repo=_repo._repo) |
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289 | 289 | |
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290 | 290 | def __inject_extras(self, repo_path, baseui, extras={}): |
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291 | 291 | """ |
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292 | 292 | Injects some extra params into baseui instance |
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293 | 293 | |
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294 | 294 | :param baseui: baseui instance |
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295 | 295 | :param extras: dict with extra params to put into baseui |
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296 | 296 | """ |
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297 | 297 | |
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298 | 298 | # make our hgweb quiet so it doesn't print output |
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299 | 299 | baseui.setconfig('ui', 'quiet', 'true') |
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300 | 300 | |
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301 | 301 | #inject some additional parameters that will be available in ui |
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302 | 302 | #for hooks |
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303 | 303 | for k, v in extras.items(): |
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304 | 304 | baseui.setconfig('rhodecode_extras', k, v) |
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