| 1 | <?php␊ |
| 2 | /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */␊ |
| 3 | /*␊ |
| 4 | # ***** BEGIN LICENSE BLOCK *****␊ |
| 5 | # This file is part of InDefero, an open source project management application.␊ |
| 6 | # Copyright (C) 2008 Céondo Ltd and contributors.␊ |
| 7 | #␊ |
| 8 | # InDefero is free software; you can redistribute it and/or modify␊ |
| 9 | # it under the terms of the GNU General Public License as published by␊ |
| 10 | # the Free Software Foundation; either version 2 of the License, or␊ |
| 11 | # (at your option) any later version.␊ |
| 12 | #␊ |
| 13 | # InDefero is distributed in the hope that it will be useful,␊ |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of␊ |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the␊ |
| 16 | # GNU General Public License for more details.␊ |
| 17 | #␊ |
| 18 | # You should have received a copy of the GNU General Public License␊ |
| 19 | # along with this program; if not, write to the Free Software␊ |
| 20 | # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA␊ |
| 21 | #␊ |
| 22 | # ***** END LICENSE BLOCK ***** */␊ |
| 23 | ␊ |
| 24 | class IDF_Precondition␊ |
| 25 | {␊ |
| 26 | /**␊ |
| 27 | * Check if the user has a base authorization to access a given␊ |
| 28 | * tab. This used in the case of private project. You need to␊ |
| 29 | * further control with the accessSource, accessIssues,␊ |
| 30 | * etc. preconditions.␊ |
| 31 | *␊ |
| 32 | * @param Pluf_HTTP_Request␊ |
| 33 | * @return mixed␊ |
| 34 | */␊ |
| 35 | static public function baseAccess($request)␊ |
| 36 | {␊ |
| 37 | if (!$request->project->private) {␊ |
| 38 | return true;␊ |
| 39 | }␊ |
| 40 | if ($request->user->hasPerm('IDF.project-authorized-user', $request->project)) {␊ |
| 41 | return true;␊ |
| 42 | }␊ |
| 43 | return self::projectMemberOrOwner($request);␊ |
| 44 | }␊ |
| 45 | ␊ |
| 46 | /**␊ |
| 47 | * Check if the user is project owner.␊ |
| 48 | *␊ |
| 49 | * @param Pluf_HTTP_Request␊ |
| 50 | * @return mixed␊ |
| 51 | */␊ |
| 52 | static public function projectOwner($request)␊ |
| 53 | {␊ |
| 54 | $res = Pluf_Precondition::loginRequired($request);␊ |
| 55 | if (true !== $res) {␊ |
| 56 | return $res;␊ |
| 57 | }␊ |
| 58 | if ($request->user->hasPerm('IDF.project-owner', $request->project)) {␊ |
| 59 | return true;␊ |
| 60 | }␊ |
| 61 | return new Pluf_HTTP_Response_Forbidden($request);␊ |
| 62 | }␊ |
| 63 | ␊ |
| 64 | /**␊ |
| 65 | * Check if the user is project owner or member.␊ |
| 66 | *␊ |
| 67 | * @param Pluf_HTTP_Request␊ |
| 68 | * @return mixed␊ |
| 69 | */␊ |
| 70 | static public function projectMemberOrOwner($request)␊ |
| 71 | {␊ |
| 72 | $res = Pluf_Precondition::loginRequired($request);␊ |
| 73 | if (true !== $res) {␊ |
| 74 | return $res;␊ |
| 75 | }␊ |
| 76 | if ($request->user->hasPerm('IDF.project-owner', $request->project)␊ |
| 77 | or␊ |
| 78 | $request->user->hasPerm('IDF.project-member', $request->project)␊ |
| 79 | ) {␊ |
| 80 | return true;␊ |
| 81 | }␊ |
| 82 | return new Pluf_HTTP_Response_Forbidden($request);␊ |
| 83 | }␊ |
| 84 | ␊ |
| 85 | /**␊ |
| 86 | * Check if the user can access a given element.␊ |
| 87 | *␊ |
| 88 | * The rights are:␊ |
| 89 | * - 'all' (default)␊ |
| 90 | * - 'none'␊ |
| 91 | * - 'login'␊ |
| 92 | * - 'members'␊ |
| 93 | * - 'owners'␊ |
| 94 | *␊ |
| 95 | * The order of the rights is such that a 'owner' is also a␊ |
| 96 | * 'member' and of course a logged in person.␊ |
| 97 | *␊ |
| 98 | * @param Pluf_HTTP_Request␊ |
| 99 | * @param string Control key␊ |
| 100 | * @return mixed␊ |
| 101 | */␊ |
| 102 | static public function accessTabGeneric($request, $key)␊ |
| 103 | {␊ |
| 104 | switch ($request->conf->getVal($key, 'all')) {␊ |
| 105 | case 'none':␊ |
| 106 | return new Pluf_HTTP_Response_Forbidden($request);␊ |
| 107 | case 'login':␊ |
| 108 | return Pluf_Precondition::loginRequired($request);␊ |
| 109 | case 'members':␊ |
| 110 | return self::projectMemberOrOwner($request);␊ |
| 111 | case 'owners':␊ |
| 112 | return self::projectOwner($request);␊ |
| 113 | case 'all':␊ |
| 114 | default:␊ |
| 115 | return true;␊ |
| 116 | }␊ |
| 117 | }␊ |
| 118 | ␊ |
| 119 | static public function accessSource($request)␊ |
| 120 | {␊ |
| 121 | $res = self::baseAccess($request);␊ |
| 122 | if (true !== $res) {␊ |
| 123 | return $res;␊ |
| 124 | }␊ |
| 125 | return self::accessTabGeneric($request, 'source_access_rights');␊ |
| 126 | }␊ |
| 127 | ␊ |
| 128 | static public function accessIssues($request)␊ |
| 129 | {␊ |
| 130 | $res = self::baseAccess($request);␊ |
| 131 | if (true !== $res) {␊ |
| 132 | return $res;␊ |
| 133 | }␊ |
| 134 | return self::accessTabGeneric($request, 'issues_access_rights');␊ |
| 135 | }␊ |
| 136 | ␊ |
| 137 | static public function accessDownloads($request)␊ |
| 138 | {␊ |
| 139 | $res = self::baseAccess($request);␊ |
| 140 | if (true !== $res) {␊ |
| 141 | return $res;␊ |
| 142 | }␊ |
| 143 | return self::accessTabGeneric($request, 'downloads_access_rights');␊ |
| 144 | }␊ |
| 145 | ␊ |
| 146 | static public function accessWiki($request)␊ |
| 147 | {␊ |
| 148 | $res = self::baseAccess($request);␊ |
| 149 | if (true !== $res) {␊ |
| 150 | return $res;␊ |
| 151 | }␊ |
| 152 | return self::accessTabGeneric($request, 'wiki_access_rights');␊ |
| 153 | }␊ |
| 154 | ␊ |
| 155 | static public function accessReview($request)␊ |
| 156 | {␊ |
| 157 | $res = self::baseAccess($request);␊ |
| 158 | if (true !== $res) {␊ |
| 159 | return $res;␊ |
| 160 | }␊ |
| 161 | return self::accessTabGeneric($request, 'review_access_rights');␊ |
| 162 | }␊ |
| 163 | ␊ |
| 164 | /**␊ |
| 165 | * Based on the request, it is automatically setting the user.␊ |
| 166 | *␊ |
| 167 | * API calls are not translated.␊ |
| 168 | */␊ |
| 169 | static public function apiSetUser($request)␊ |
| 170 | {␊ |
| 171 | // REQUEST is used to be used both for POST and GET requests.␊ |
| 172 | if (!isset($request->REQUEST['_hash'])␊ |
| 173 | or !isset($request->REQUEST['_login'])␊ |
| 174 | or !isset($request->REQUEST['_salt'])) {␊ |
| 175 | // equivalent to anonymous access.␊ |
| 176 | return true;␊ |
| 177 | }␊ |
| 178 | $db =& Pluf::db();␊ |
| 179 | $true = Pluf_DB_BooleanToDb(true, $db);␊ |
| 180 | $sql = new Pluf_SQL('login=%s AND active='.$true,␊ |
| 181 | $request->REQUEST['_login']);␊ |
| 182 | $users = Pluf::factory('Pluf_User')->getList(array('filter'=>$sql->gen()));␊ |
| 183 | if ($users->count() != 1 or !$users[0]->active) {␊ |
| 184 | // Should return a special authentication error like user␊ |
| 185 | // not found.␊ |
| 186 | return true;␊ |
| 187 | }␊ |
| 188 | $hash = sha1($request->REQUEST['_salt'].sha1($users[0]->password));␊ |
| 189 | if ($hash != $request->REQUEST['_hash']) {␊ |
| 190 | return true; // Again need authentication error␊ |
| 191 | }␊ |
| 192 | $request->user = $users[0];␊ |
| 193 | IDF_Middleware::setRights($request);␊ |
| 194 | return true;␊ |
| 195 | }␊ |
| 196 | ␊ |
| 197 | /**␊ |
| 198 | * Based on the request, it is automatically setting the user.␊ |
| 199 | *␊ |
| 200 | * Authenticated feeds have a token set at the end of the url in␊ |
| 201 | * the for of 'authenticated/url/token/234092384023woeiur/'. If␊ |
| 202 | * you remove 'token/234092384023woeiur/' the url is not␊ |
| 203 | * authenticated.␊ |
| 204 | *␊ |
| 205 | * If the user is already logged in and not anonymous and no token␊ |
| 206 | * is given, then the user is unset and a non authenticated user␊ |
| 207 | * is loaded. This is to avoid people to not understand why a␊ |
| 208 | * normally not authenticated feed is providing authenticated␊ |
| 209 | * data.␊ |
| 210 | */␊ |
| 211 | static public function feedSetUser($request)␊ |
| 212 | {␊ |
| 213 | if (!isset($request->project)) {␊ |
| 214 | return true; // we do not act on non project pages at the␊ |
| 215 | // moment.␊ |
| 216 | }␊ |
| 217 | if (!$request->user->isAnonymous()) {␊ |
| 218 | // by default anonymous␊ |
| 219 | $request->user = new Pluf_User();␊ |
| 220 | IDF_Middleware::setRights($request);␊ |
| 221 | }␊ |
| 222 | $match = array();␊ |
| 223 | if (!preg_match('#/token/([^/]+)/$#', $request->query, $match)) {␊ |
| 224 | return true; // anonymous␊ |
| 225 | }␊ |
| 226 | $token = $match[1];␊ |
| 227 | $hash = substr($token, 0, 2);␊ |
| 228 | $encrypted = substr($token, 2);␊ |
| 229 | if ($hash != substr(md5(Pluf::f('secret_key').$encrypted), 0, 2)) {␊ |
| 230 | return true; // no match in the hash, anonymous␊ |
| 231 | }␊ |
| 232 | $cr = new Pluf_Crypt(md5(Pluf::f('secret_key')));␊ |
| 233 | list($userid, $projectid) = explode(':', $cr->decrypt($encrypted), 2);␊ |
| 234 | if ($projectid != $request->project->id) {␊ |
| 235 | return true; // anonymous␊ |
| 236 | }␊ |
| 237 | $user = new Pluf_User($userid);␊ |
| 238 | if (!$user->active) {␊ |
| 239 | return true; // anonymous␊ |
| 240 | }␊ |
| 241 | $request->user = $user;␊ |
| 242 | IDF_Middleware::setRights($request);␊ |
| 243 | return true;␊ |
| 244 | }␊ |
| 245 | ␊ |
| 246 | /**␊ |
| 247 | * Generate the token for the feed.␊ |
| 248 | *␊ |
| 249 | * @param IDF_Project␊ |
| 250 | * @param Pluf_User␊ |
| 251 | * @return string Token␊ |
| 252 | */␊ |
| 253 | static public function genFeedToken($project, $user)␊ |
| 254 | {␊ |
| 255 | $cr = new Pluf_Crypt(md5(Pluf::f('secret_key')));␊ |
| 256 | $encrypted = trim($cr->encrypt($user->id.':'.$project->id), '~');␊ |
| 257 | return substr(md5(Pluf::f('secret_key').$encrypted), 0, 2).$encrypted;␊ |
| 258 | }␊ |
| 259 | } |
