lib/router.php

   1 <?php
   2 /**
   3  * StatusNet, the distributed open-source microblogging tool
   4  *
   5  * URL routing utilities
   6  *
   7  * PHP version 5
   8  *
   9  * LICENCE: This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU Affero General Public License as published by
  11  * the Free Software Foundation, either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Affero General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Affero General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  * @category  URL
  23  * @package   StatusNet
  24  * @author    Evan Prodromou <evan@status.net>
  25  * @copyright 2009 StatusNet, Inc.
  26  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  27  * @link      http://status.net/
  28  */
  29
  30 if (!defined('STATUSNET') && !defined('LACONICA')) {
  31     exit(1);
  32 }
  33
  34 require_once 'Net/URL/Mapper.php';
  35
  36 /**
  37  * URL Router
  38  *
  39  * Cheap wrapper around Net_URL_Mapper
  40  *
  41  * @category URL
  42  * @package  StatusNet
  43  * @author   Evan Prodromou <evan@status.net>
  44  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  45  * @link     http://status.net/
  46  */
  47
  48 class Router
  49 {
  50     var $m = null;
  51     static $inst = null;
  52     static $bare = array('requesttoken', 'accesstoken', 'userauthorization',
  53                          'postnotice', 'updateprofile', 'finishremotesubscribe');
  54
  55     static function get()
  56     {
  57         if (!Router::$inst) {
  58             Router::$inst = new Router();
  59         }
  60         return Router::$inst;
  61     }
  62
  63     function __construct()
  64     {
  65         if (!$this->m) {
  66             $this->m = $this->initialize();
  67         }
  68     }
  69
  70     function initialize()
  71     {
  72         $m = Net_URL_Mapper::getInstance();
  73
  74         // In the "root"
  75
  76         $m->connect('', array('action' => 'public'));
  77         $m->connect('rss', array('action' => 'publicrss'));
  78         $m->connect('featuredrss', array('action' => 'featuredrss'));
  79         $m->connect('favoritedrss', array('action' => 'favoritedrss'));
  80         $m->connect('opensearch/people', array('action' => 'opensearch',
  81                                                'type' => 'people'));
  82         $m->connect('opensearch/notice', array('action' => 'opensearch',
  83                                                'type' => 'notice'));
  84
  85         // docs
  86
  87         $m->connect('doc/:title', array('action' => 'doc'));
  88
  89         // main stuff is repetitive
  90
  91         $main = array('login', 'logout', 'register', 'subscribe',
  92                       'unsubscribe', 'confirmaddress', 'recoverpassword',
  93                       'invite', 'favor', 'disfavor', 'sup',
  94                       'block', 'unblock', 'subedit',
  95                       'groupblock', 'groupunblock');
  96
  97         foreach ($main as $a) {
  98             $m->connect('main/'.$a, array('action' => $a));
  99         }
 100
 101         $m->connect('main/sup/:seconds', array('action' => 'sup'),
 102                     array('seconds' => '[0-9]+'));
 103
 104         $m->connect('main/tagother/:id', array('action' => 'tagother'));
 105
 106         $m->connect('main/oembed',
 107                     array('action' => 'oembed'));
 108
 109         // these take a code
 110
 111         foreach (array('register', 'confirmaddress', 'recoverpassword') as $c) {
 112             $m->connect('main/'.$c.'/:code', array('action' => $c));
 113         }
 114
 115         // exceptional
 116
 117         $m->connect('main/remote', array('action' => 'remotesubscribe'));
 118         $m->connect('main/remote?nickname=:nickname', array('action' => 'remotesubscribe'), array('nickname' => '[A-Za-z0-9_-]+'));
 119
 120         foreach (Router::$bare as $action) {
 121             $m->connect('index.php?action=' . $action, array('action' => $action));
 122         }
 123
 124         // settings
 125
 126         foreach (array('profile', 'avatar', 'password', 'im',
 127                        'email', 'sms', 'userdesign', 'other') as $s) {
 128             $m->connect('settings/'.$s, array('action' => $s.'settings'));
 129         }
 130
 131         // search
 132
 133         foreach (array('group', 'people', 'notice') as $s) {
 134             $m->connect('search/'.$s, array('action' => $s.'search'));
 135             $m->connect('search/'.$s.'?q=:q',
 136                         array('action' => $s.'search'),
 137                         array('q' => '.+'));
 138         }
 139
 140         // The second of these is needed to make the link work correctly
 141         // when inserted into the page. The first is needed to match the
 142         // route on the way in. Seems to be another Net_URL_Mapper bug to me.
 143         $m->connect('search/notice/rss', array('action' => 'noticesearchrss'));
 144         $m->connect('search/notice/rss?q=:q', array('action' => 'noticesearchrss'),
 145                     array('q' => '.+'));
 146
 147         $m->connect('attachment/:attachment',
 148                     array('action' => 'attachment'),
 149                     array('attachment' => '[0-9]+'));
 150
 151         $m->connect('attachment/:attachment/ajax',
 152                     array('action' => 'attachment_ajax'),
 153                     array('attachment' => '[0-9]+'));
 154
 155         $m->connect('attachment/:attachment/thumbnail',
 156                     array('action' => 'attachment_thumbnail'),
 157                     array('attachment' => '[0-9]+'));
 158
 159         $m->connect('notice/new', array('action' => 'newnotice'));
 160         $m->connect('notice/new?replyto=:replyto',
 161                     array('action' => 'newnotice'),
 162                     array('replyto' => '[A-Za-z0-9_-]+'));
 163         $m->connect('notice/new?replyto=:replyto&inreplyto=:inreplyto',
 164                     array('action' => 'newnotice'),
 165                     array('replyto' => '[A-Za-z0-9_-]+'),
 166                     array('inreplyto' => '[0-9]+'));
 167
 168         $m->connect('notice/:notice/file',
 169             array('action' => 'file'),
 170             array('notice' => '[0-9]+'));
 171
 172         $m->connect('notice/:notice',
 173                     array('action' => 'shownotice'),
 174                     array('notice' => '[0-9]+'));
 175         $m->connect('notice/delete', array('action' => 'deletenotice'));
 176         $m->connect('notice/delete/:notice',
 177                     array('action' => 'deletenotice'),
 178                     array('notice' => '[0-9]+'));
 179
 180         // conversation
 181
 182         $m->connect('conversation/:id',
 183                     array('action' => 'conversation'),
 184                     array('id' => '[0-9]+'));
 185
 186         $m->connect('message/new', array('action' => 'newmessage'));
 187         $m->connect('message/new?to=:to', array('action' => 'newmessage'), array('to' => '[A-Za-z0-9_-]+'));
 188         $m->connect('message/:message',
 189                     array('action' => 'showmessage'),
 190                     array('message' => '[0-9]+'));
 191
 192         $m->connect('user/:id',
 193                     array('action' => 'userbyid'),
 194                     array('id' => '[0-9]+'));
 195
 196         $m->connect('tags/', array('action' => 'publictagcloud'));
 197         $m->connect('tag/', array('action' => 'publictagcloud'));
 198         $m->connect('tags', array('action' => 'publictagcloud'));
 199         $m->connect('tag', array('action' => 'publictagcloud'));
 200         $m->connect('tag/:tag/rss',
 201                     array('action' => 'tagrss'),
 202                     array('tag' => '[a-zA-Z0-9]+'));
 203         $m->connect('tag/:tag',
 204                     array('action' => 'tag'),
 205                     array('tag' => '[\pL\pN_\-\.]{1,64}'));
 206
 207         $m->connect('peopletag/:tag',
 208                     array('action' => 'peopletag'),
 209                     array('tag' => '[a-zA-Z0-9]+'));
 210
 211         $m->connect('featured/', array('action' => 'featured'));
 212         $m->connect('featured', array('action' => 'featured'));
 213         $m->connect('favorited/', array('action' => 'favorited'));
 214         $m->connect('favorited', array('action' => 'favorited'));
 215
 216         // groups
 217
 218         $m->connect('group/new', array('action' => 'newgroup'));
 219
 220         foreach (array('edit', 'join', 'leave') as $v) {
 221             $m->connect('group/:nickname/'.$v,
 222                         array('action' => $v.'group'),
 223                         array('nickname' => '[a-zA-Z0-9]+'));
 224         }
 225
 226         foreach (array('members', 'logo', 'rss', 'designsettings') as $n) {
 227             $m->connect('group/:nickname/'.$n,
 228                         array('action' => 'group'.$n),
 229                         array('nickname' => '[a-zA-Z0-9]+'));
 230         }
 231
 232         $m->connect('group/:nickname/foaf',
 233                     array('action' => 'foafgroup'),
 234                     array('nickname' => '[a-zA-Z0-9]+'));
 235
 236         $m->connect('group/:nickname/blocked',
 237                     array('action' => 'blockedfromgroup'),
 238                     array('nickname' => '[a-zA-Z0-9]+'));
 239
 240         $m->connect('group/:nickname/makeadmin',
 241                     array('action' => 'makeadmin'),
 242                     array('nickname' => '[a-zA-Z0-9]+'));
 243
 244         $m->connect('group/:id/id',
 245                     array('action' => 'groupbyid'),
 246                     array('id' => '[0-9]+'));
 247
 248         $m->connect('group/:nickname',
 249                     array('action' => 'showgroup'),
 250                     array('nickname' => '[a-zA-Z0-9]+'));
 251
 252         $m->connect('group/', array('action' => 'groups'));
 253         $m->connect('group', array('action' => 'groups'));
 254         $m->connect('groups/', array('action' => 'groups'));
 255         $m->connect('groups', array('action' => 'groups'));
 256
 257         // Twitter-compatible API
 258
 259         // statuses API
 260
 261         $m->connect('api/statuses/public_timeline.:format',
 262                     array('action' => 'ApiTimelinePublic',
 263                     'format' => '(xml|json|rss|atom)'));
 264
 265         $m->connect('api/statuses/friends_timeline.:format',
 266                     array('action' => 'ApiTimelineFriends',
 267                           'format' => '(xml|json|rss|atom)'));
 268
 269         $m->connect('api/statuses/friends_timeline/:id.:format',
 270                     array('action' => 'ApiTimelineFriends',
 271                           'id' => '[a-zA-Z0-9]+',
 272                           'format' => '(xml|json|rss|atom)'));
 273         $m->connect('api/statuses/home_timeline.:format',
 274                     array('action' => 'ApiTimelineFriends',
 275                           'format' => '(xml|json|rss|atom)'));
 276
 277         $m->connect('api/statuses/home_timeline/:id.:format',
 278                     array('action' => 'ApiTimelineFriends',
 279                           'id' => '[a-zA-Z0-9]+',
 280                           'format' => '(xml|json|rss|atom)'));
 281
 282         $m->connect('api/statuses/user_timeline.:format',
 283                     array('action' => 'ApiTimelineUser',
 284                     'format' => '(xml|json|rss|atom)'));
 285
 286         $m->connect('api/statuses/user_timeline/:id.:format',
 287                     array('action' => 'ApiTimelineUser',
 288                     'id' => '[a-zA-Z0-9]+',
 289                     'format' => '(xml|json|rss|atom)'));
 290
 291         $m->connect('api/statuses/mentions.:format',
 292                     array('action' => 'ApiTimelineMentions',
 293                     'format' => '(xml|json|rss|atom)'));
 294
 295         $m->connect('api/statuses/mentions/:id.:format',
 296                     array('action' => 'ApiTimelineMentions',
 297                     'id' => '[a-zA-Z0-9]+',
 298                     'format' => '(xml|json|rss|atom)'));
 299
 300         $m->connect('api/statuses/replies.:format',
 301                     array('action' => 'ApiTimelineMentions',
 302                     'format' => '(xml|json|rss|atom)'));
 303
 304         $m->connect('api/statuses/replies/:id.:format',
 305                     array('action' => 'ApiTimelineMentions',
 306                     'id' => '[a-zA-Z0-9]+',
 307                     'format' => '(xml|json|rss|atom)'));
 308
 309         $m->connect('api/statuses/friends.:format',
 310                      array('action' => 'ApiUserFriends',
 311                            'format' => '(xml|json)'));
 312
 313         $m->connect('api/statuses/friends/:id.:format',
 314                     array('action' => 'ApiUserFriends',
 315                     'id' => '[a-zA-Z0-9]+',
 316                     'format' => '(xml|json)'));
 317
 318         $m->connect('api/statuses/followers.:format',
 319                      array('action' => 'ApiUserFollowers',
 320                            'format' => '(xml|json)'));
 321
 322         $m->connect('api/statuses/followers/:id.:format',
 323                     array('action' => 'ApiUserFollowers',
 324                     'id' => '[a-zA-Z0-9]+',
 325                     'format' => '(xml|json)'));
 326
 327         $m->connect('api/statuses/show.:format',
 328                     array('action' => 'ApiStatusesShow',
 329                           'format' => '(xml|json)'));
 330
 331         $m->connect('api/statuses/show/:id.:format',
 332                     array('action' => 'ApiStatusesShow',
 333                           'id' => '[0-9]+',
 334                           'format' => '(xml|json)'));
 335
 336         $m->connect('api/statuses/update.:format',
 337                     array('action' => 'ApiStatusesUpdate',
 338                           'format' => '(xml|json)'));
 339
 340         $m->connect('api/statuses/destroy.:format',
 341                   array('action' => 'ApiStatusesDestroy',
 342                         'format' => '(xml|json)'));
 343
 344         $m->connect('api/statuses/destroy/:id.:format',
 345                   array('action' => 'ApiStatusesDestroy',
 346                         'id' => '[0-9]+',
 347                         'format' => '(xml|json)'));
 348
 349         // users
 350
 351         $m->connect('api/users/show/:id.:format',
 352                     array('action' => 'ApiUserShow',
 353                           'id' => '[a-zA-Z0-9]+',
 354                           'format' => '(xml|json)'));
 355
 356         $m->connect('api/users/:method',
 357                     array('action' => 'api',
 358                           'apiaction' => 'users'),
 359                     array('method' => 'show(\.(xml|json))?'));
 360
 361         // direct messages
 362
 363
 364         $m->connect('api/direct_messages.:format',
 365                     array('action' => 'ApiDirectMessage',
 366                           'format' => '(xml|json|rss|atom)'));
 367
 368         $m->connect('api/direct_messages/sent.:format',
 369                     array('action' => 'ApiDirectMessage',
 370                           'format' => '(xml|json|rss|atom)',
 371                           'sent' => true));
 372
 373         $m->connect('api/direct_messages/new.:format',
 374                      array('action' => 'ApiDirectMessageNew',
 375                            'format' => '(xml|json)'));
 376
 377         // friendships
 378
 379         $m->connect('api/friendships/show.:format',
 380                     array('action' => 'ApiFriendshipsShow',
 381                           'format' => '(xml|json)'));
 382
 383         $m->connect('api/friendships/exists.:format',
 384                     array('action' => 'ApiFriendshipsExists',
 385                           'format' => '(xml|json)'));
 386
 387         $m->connect('api/friendships/create.:format',
 388                     array('action' => 'ApiFriendshipsCreate',
 389                           'format' => '(xml|json)'));
 390
 391         $m->connect('api/friendships/destroy.:format',
 392                      array('action' => 'ApiFriendshipsDestroy',
 393                           'format' => '(xml|json)'));
 394
 395         $m->connect('api/friendships/create/:id.:format',
 396                     array('action' => 'ApiFriendshipsCreate',
 397                           'id' => '[a-zA-Z0-9]+',
 398                           'format' => '(xml|json)'));
 399
 400         $m->connect('api/friendships/destroy/:id.:format',
 401                     array('action' => 'ApiFriendshipsDestroy',
 402                     'id' => '[a-zA-Z0-9]+',
 403                     'format' => '(xml|json)'));
 404
 405         // Social graph
 406
 407         $m->connect('api/friends/ids/:id.:format',
 408                     array('action' => 'apiFriends',
 409                           'ids_only' => true));
 410
 411         $m->connect('api/followers/ids/:id.:format',
 412                     array('action' => 'apiFollowers',
 413                           'ids_only' => true));
 414
 415         $m->connect('api/friends/ids.:format',
 416                     array('action' => 'apiFriends',
 417                           'ids_only' => true));
 418
 419         $m->connect('api/followers/ids.:format',
 420                      array('action' => 'apiFollowers',
 421                           'ids_only' => true));
 422
 423         // account
 424
 425         $m->connect('api/account/verify_credentials.:format',
 426                     array('action' => 'ApiAccountVerifyCredentials'));
 427
 428         // special case where verify_credentials is called w/out a format
 429
 430         $m->connect('api/account/verify_credentials',
 431                     array('action' => 'ApiAccountVerifyCredentials'));
 432
 433         $m->connect('api/account/rate_limit_status.:format',
 434                     array('action' => 'ApiAccountRateLimitStatus'));
 435
 436         // favorites
 437
 438         $m->connect('api/favorites.:format',
 439                     array('action' => 'ApiTimelineFavorites',
 440                     'format' => '(xml|json|rss|atom)'));
 441
 442         $m->connect('api/favorites/:id.:format',
 443                     array('action' => 'ApiTimelineFavorites',
 444                           'id' => '[a-zA-Z0-9]+',
 445                           'format' => '(xmljson|rss|atom)'));
 446
 447         $m->connect('api/favorites/create/:id.:format',
 448                     array('action' => 'ApiFavoriteCreate',
 449                           'id' => '[a-zA-Z0-9]+',
 450                           'format' => '(xml|json)'));
 451
 452         $m->connect('api/favorites/destroy/:id.:format',
 453                     array('action' => 'ApiFavoriteDestroy',
 454                           'id' => '[a-zA-Z0-9]+',
 455                           'format' => '(xml|json)'));
 456
 457         // notifications
 458
 459         $m->connect('api/notifications/:method/:argument',
 460                     array('action' => 'api',
 461                           'apiaction' => 'favorites'));
 462
 463         // blocks
 464
 465         $m->connect('api/blocks/create/:id.:format',
 466                     array('action' => 'ApiBlockCreate',
 467                           'id' => '[a-zA-Z0-9]+',
 468                           'format' => '(xml|json)'));
 469
 470         $m->connect('api/blocks/destroy/:id.:format',
 471                     array('action' => 'ApiBlockDestroy',
 472                           'id' => '[a-zA-Z0-9]+',
 473                           'format' => '(xml|json)'));
 474         // help
 475
 476         $m->connect('api/help/test.:format',
 477                     array('action' => 'ApiHelpTest',
 478                           'format' => '(xml|json)'));
 479
 480         // statusnet
 481
 482         $m->connect('api/statusnet/version.:format',
 483                     array('action' => 'ApiStatusnetVersion',
 484                           'format' => '(xml|json)'));
 485
 486         $m->connect('api/statusnet/config.:format',
 487                     array('action' => 'ApiStatusnetConfig',
 488                    'format' => '(xml|json)'));
 489
 490         // For older methods, we provide "laconica" base action
 491
 492         $m->connect('api/laconica/version.:format',
 493                     array('action' => 'ApiStatusnetVersion',
 494                           'format' => '(xml|json)'));
 495
 496         $m->connect('api/laconica/config.:format',
 497                     array('action' => 'ApiStatusnetConfig',
 498                     'format' => '(xml|json)'));
 499
 500         // Groups and tags are newer than 0.8.1 so no backward-compatibility
 501         // necessary
 502
 503         // Groups
 504         //'list' has to be handled differently, as php will not allow a method to be named 'list'
 505
 506         $m->connect('api/statusnet/groups/timeline/:id.:format',
 507                     array('action' => 'ApiTimelineGroup',
 508                           'id' => '[a-zA-Z0-9]+',
 509                           'format' => '(xmljson|rss|atom)'));
 510
 511         $m->connect('api/statusnet/groups/show.:format',
 512                     array('action' => 'ApiGroupShow',
 513                     'format' => '(xml|json)'));
 514
 515         $m->connect('api/statusnet/groups/show/:id.:format',
 516                     array('action' => 'ApiGroupShow',
 517                           'id' => '[a-zA-Z0-9]+',
 518                           'format' => '(xml|json)'));
 519
 520         $m->connect('api/statusnet/groups/join.:format',
 521                     array('action' => 'ApiGroupJoin',
 522                           'id' => '[a-zA-Z0-9]+',
 523                           'format' => '(xml|json)'));
 524
 525         $m->connect('api/statusnet/groups/join/:id.:format',
 526                     array('action' => 'ApiGroupJoin',
 527                     'format' => '(xml|json)'));
 528
 529         $m->connect('api/statusnet/groups/leave.:format',
 530                     array('action' => 'ApiGroupLeave',
 531                           'id' => '[a-zA-Z0-9]+',
 532                           'format' => '(xml|json)'));
 533
 534         $m->connect('api/statusnet/groups/leave/:id.:format',
 535                     array('action' => 'ApiGroupLeave',
 536                           'format' => '(xml|json)'));
 537
 538         $m->connect('api/statusnet/groups/is_member.:format',
 539                     array('action' => 'ApiGroupIsMember',
 540                           'format' => '(xml|json)'));
 541
 542         $m->connect('api/statusnet/groups/list.:format',
 543                     array('action' => 'ApiGroupList',
 544                           'format' => '(xml|json|rss|atom)'));
 545
 546         $m->connect('api/statusnet/groups/list/:id.:format',
 547                     array('action' => 'ApiGroupList',
 548                           'id' => '[a-zA-Z0-9]+',
 549                           'format' => '(xml|json|rss|atom)'));
 550
 551         $m->connect('api/statusnet/groups/list_all.:format',
 552                     array('action' => 'ApiGroupListAll',
 553                           'format' => '(xml|json|rss|atom)'));
 554
 555         $m->connect('api/statusnet/groups/membership.:format',
 556                     array('action' => 'ApiGroupMembership',
 557                          'format' => '(xml|json)'));
 558
 559         $m->connect('api/statusnet/groups/membership/:id.:format',
 560                     array('action' => 'ApiGroupMembership',
 561                            'id' => '[a-zA-Z0-9]+',
 562                            'format' => '(xml|json)'));
 563
 564         $m->connect('api/statusnet/groups/create.:format',
 565                     array('action' => 'ApiGroupCreate',
 566                           'format' => '(xml|json)'));
 567         // Tags
 568         $m->connect('api/statusnet/tags/timeline/:tag.:format',
 569                     array('action' => 'ApiTimelineTag',
 570                           'format' => '(xmljson|rss|atom)'));
 571
 572         // search
 573         $m->connect('api/search.atom', array('action' => 'twitapisearchatom'));
 574         $m->connect('api/search.json', array('action' => 'twitapisearchjson'));
 575         $m->connect('api/trends.json', array('action' => 'twitapitrends'));
 576
 577         // user stuff
 578
 579         foreach (array('subscriptions', 'subscribers',
 580                        'nudge', 'all', 'foaf', 'xrds',
 581                        'replies', 'inbox', 'outbox', 'microsummary') as $a) {
 582             $m->connect(':nickname/'.$a,
 583                         array('action' => $a),
 584                         array('nickname' => '[a-zA-Z0-9]{1,64}'));
 585         }
 586
 587         foreach (array('subscriptions', 'subscribers') as $a) {
 588             $m->connect(':nickname/'.$a.'/:tag',
 589                         array('action' => $a),
 590                         array('tag' => '[a-zA-Z0-9]+',
 591                               'nickname' => '[a-zA-Z0-9]{1,64}'));
 592         }
 593
 594         foreach (array('rss', 'groups') as $a) {
 595             $m->connect(':nickname/'.$a,
 596                         array('action' => 'user'.$a),
 597                         array('nickname' => '[a-zA-Z0-9]{1,64}'));
 598         }
 599
 600         foreach (array('all', 'replies', 'favorites') as $a) {
 601             $m->connect(':nickname/'.$a.'/rss',
 602                         array('action' => $a.'rss'),
 603                         array('nickname' => '[a-zA-Z0-9]{1,64}'));
 604         }
 605
 606         $m->connect(':nickname/favorites',
 607                     array('action' => 'showfavorites'),
 608                     array('nickname' => '[a-zA-Z0-9]{1,64}'));
 609
 610         $m->connect(':nickname/avatar/:size',
 611                     array('action' => 'avatarbynickname'),
 612                     array('size' => '(original|96|48|24)',
 613                           'nickname' => '[a-zA-Z0-9]{1,64}'));
 614
 615         $m->connect(':nickname/tag/:tag/rss',
 616             array('action' => 'userrss'),
 617             array('nickname' => '[a-zA-Z0-9]{1,64}'),
 618             array('tag' => '[a-zA-Z0-9]+'));
 619
 620         $m->connect(':nickname/tag/:tag',
 621                     array('action' => 'showstream'),
 622                     array('nickname' => '[a-zA-Z0-9]{1,64}'),
 623                     array('tag' => '[a-zA-Z0-9]+'));
 624
 625         $m->connect(':nickname',
 626                     array('action' => 'showstream'),
 627                     array('nickname' => '[a-zA-Z0-9]{1,64}'));
 628
 629         Event::handle('RouterInitialized', array($m));
 630
 631         return $m;
 632     }
 633
 634     function map($path)
 635     {
 636         try {
 637             $match = $this->m->match($path);
 638         } catch (Net_URL_Mapper_InvalidException $e) {
 639             common_log(LOG_ERR, "Problem getting route for $path - " .
 640                        $e->getMessage());
 641             $cac = new ClientErrorAction("Page not found.", 404);
 642             $cac->showPage();
 643         }
 644
 645         return $match;
 646     }
 647
 648     function build($action, $args=null, $params=null, $fragment=null)
 649     {
 650         $action_arg = array('action' => $action);
 651
 652         if ($args) {
 653             $args = array_merge($action_arg, $args);
 654         } else {
 655             $args = $action_arg;
 656         }
 657
 658         $url = $this->m->generate($args, $params, $fragment);
 659
 660         // Due to a bug in the Net_URL_Mapper code, the returned URL may
 661         // contain a malformed query of the form ?p1=v1?p2=v2?p3=v3. We
 662         // repair that here rather than modifying the upstream code...
 663
 664         $qpos = strpos($url, '?');
 665         if ($qpos !== false) {
 666             $url = substr($url, 0, $qpos+1) .
 667               str_replace('?', '&', substr($url, $qpos+1));
 668         }
 669         return $url;
 670     }
 671 }