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some formatting changes to make inblobs work
[quix0rs-gnu-social.git] / 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         $m = Net_URL_Mapper::getInstance();
73
74         if (Event::handle('StartInitializeRouter', array(&$m))) {
75
76             // In the "root"
77
78             $m->connect('', array('action' => 'public'));
79             $m->connect('rss', array('action' => 'publicrss'));
80             $m->connect('featuredrss', array('action' => 'featuredrss'));
81             $m->connect('favoritedrss', array('action' => 'favoritedrss'));
82             $m->connect('opensearch/people', array('action' => 'opensearch',
83                                                    'type' => 'people'));
84             $m->connect('opensearch/notice', array('action' => 'opensearch',
85                                                    'type' => 'notice'));
86
87             // docs
88
89             $m->connect('doc/:title', array('action' => 'doc'));
90
91             $m->connect('main/login?user_id=:user_id&token=:token', array('action'=>'login'), array('user_id'=> '[0-9]+', 'token'=>'.+'));
92
93             // main stuff is repetitive
94
95             $main = array('login', 'logout', 'register', 'subscribe',
96                           'unsubscribe', 'confirmaddress', 'recoverpassword',
97                           'invite', 'favor', 'disfavor', 'sup',
98                           'block', 'unblock', 'subedit',
99                           'groupblock', 'groupunblock',
100                           'sandbox', 'unsandbox',
101                           'silence', 'unsilence',
102                           'repeat',
103                           'deleteuser');
104
105             foreach ($main as $a) {
106                 $m->connect('main/'.$a, array('action' => $a));
107             }
108
109             $m->connect('main/sup/:seconds', array('action' => 'sup'),
110                         array('seconds' => '[0-9]+'));
111
112             $m->connect('main/tagother/:id', array('action' => 'tagother'));
113
114             $m->connect('main/oembed',
115                         array('action' => 'oembed'));
116
117             $m->connect('main/xrds',
118                         array('action' => 'publicxrds'));
119
120             // these take a code
121
122             foreach (array('register', 'confirmaddress', 'recoverpassword') as $c) {
123                 $m->connect('main/'.$c.'/:code', array('action' => $c));
124             }
125
126             // exceptional
127
128             $m->connect('main/remote', array('action' => 'remotesubscribe'));
129             $m->connect('main/remote?nickname=:nickname', array('action' => 'remotesubscribe'), array('nickname' => '[A-Za-z0-9_-]+'));
130
131             foreach (Router::$bare as $action) {
132                 $m->connect('index.php?action=' . $action, array('action' => $action));
133             }
134
135             // settings
136
137             foreach (array('profile', 'avatar', 'password', 'im',
138                            'email', 'sms', 'userdesign', 'other') as $s) {
139                 $m->connect('settings/'.$s, array('action' => $s.'settings'));
140             }
141
142             // search
143
144             foreach (array('group', 'people', 'notice') as $s) {
145                 $m->connect('search/'.$s, array('action' => $s.'search'));
146                 $m->connect('search/'.$s.'?q=:q',
147                             array('action' => $s.'search'),
148                             array('q' => '.+'));
149             }
150
151             // The second of these is needed to make the link work correctly
152             // when inserted into the page. The first is needed to match the
153             // route on the way in. Seems to be another Net_URL_Mapper bug to me.
154             $m->connect('search/notice/rss', array('action' => 'noticesearchrss'));
155             $m->connect('search/notice/rss?q=:q', array('action' => 'noticesearchrss'),
156                         array('q' => '.+'));
157
158             $m->connect('attachment/:attachment',
159                         array('action' => 'attachment'),
160                         array('attachment' => '[0-9]+'));
161
162             $m->connect('attachment/:attachment/ajax',
163                         array('action' => 'attachment_ajax'),
164                         array('attachment' => '[0-9]+'));
165
166             $m->connect('attachment/:attachment/thumbnail',
167                         array('action' => 'attachment_thumbnail'),
168                         array('attachment' => '[0-9]+'));
169
170             $m->connect('notice/new', array('action' => 'newnotice'));
171             $m->connect('notice/new?replyto=:replyto',
172                         array('action' => 'newnotice'),
173                         array('replyto' => '[A-Za-z0-9_-]+'));
174             $m->connect('notice/new?replyto=:replyto&inreplyto=:inreplyto',
175                         array('action' => 'newnotice'),
176                         array('replyto' => '[A-Za-z0-9_-]+'),
177                         array('inreplyto' => '[0-9]+'));
178
179             $m->connect('notice/:notice/file',
180                         array('action' => 'file'),
181                         array('notice' => '[0-9]+'));
182
183             $m->connect('notice/:notice',
184                         array('action' => 'shownotice'),
185                         array('notice' => '[0-9]+'));
186             $m->connect('notice/delete', array('action' => 'deletenotice'));
187             $m->connect('notice/delete/:notice',
188                         array('action' => 'deletenotice'),
189                         array('notice' => '[0-9]+'));
190
191             $m->connect('bookmarklet/new', array('action' => 'bookmarklet'));
192
193             // conversation
194
195             $m->connect('conversation/:id',
196                         array('action' => 'conversation'),
197                         array('id' => '[0-9]+'));
198
199             $m->connect('message/new', array('action' => 'newmessage'));
200             $m->connect('message/new?to=:to', array('action' => 'newmessage'), array('to' => '[A-Za-z0-9_-]+'));
201             $m->connect('message/:message',
202                         array('action' => 'showmessage'),
203                         array('message' => '[0-9]+'));
204
205             $m->connect('user/:id',
206                         array('action' => 'userbyid'),
207                         array('id' => '[0-9]+'));
208
209             $m->connect('tags/', array('action' => 'publictagcloud'));
210             $m->connect('tag/', array('action' => 'publictagcloud'));
211             $m->connect('tags', array('action' => 'publictagcloud'));
212             $m->connect('tag', array('action' => 'publictagcloud'));
213             $m->connect('tag/:tag/rss',
214                         array('action' => 'tagrss'),
215                         array('tag' => '[a-zA-Z0-9]+'));
216             $m->connect('tag/:tag',
217                         array('action' => 'tag'),
218                         array('tag' => '[\pL\pN_\-\.]{1,64}'));
219
220             $m->connect('peopletag/:tag',
221                         array('action' => 'peopletag'),
222                         array('tag' => '[a-zA-Z0-9]+'));
223
224             $m->connect('featured/', array('action' => 'featured'));
225             $m->connect('featured', array('action' => 'featured'));
226             $m->connect('favorited/', array('action' => 'favorited'));
227             $m->connect('favorited', array('action' => 'favorited'));
228
229             // groups
230
231             $m->connect('group/new', array('action' => 'newgroup'));
232
233             foreach (array('edit', 'join', 'leave') as $v) {
234                 $m->connect('group/:nickname/'.$v,
235                             array('action' => $v.'group'),
236                             array('nickname' => '[a-zA-Z0-9]+'));
237             }
238
239             foreach (array('members', 'logo', 'rss', 'designsettings') as $n) {
240                 $m->connect('group/:nickname/'.$n,
241                             array('action' => 'group'.$n),
242                             array('nickname' => '[a-zA-Z0-9]+'));
243             }
244
245             $m->connect('group/:nickname/foaf',
246                         array('action' => 'foafgroup'),
247                         array('nickname' => '[a-zA-Z0-9]+'));
248
249             $m->connect('group/:nickname/blocked',
250                         array('action' => 'blockedfromgroup'),
251                         array('nickname' => '[a-zA-Z0-9]+'));
252
253             $m->connect('group/:nickname/makeadmin',
254                         array('action' => 'makeadmin'),
255                         array('nickname' => '[a-zA-Z0-9]+'));
256
257             $m->connect('group/:id/id',
258                         array('action' => 'groupbyid'),
259                         array('id' => '[0-9]+'));
260
261             $m->connect('group/:nickname',
262                         array('action' => 'showgroup'),
263                         array('nickname' => '[a-zA-Z0-9]+'));
264
265             $m->connect('group/', array('action' => 'groups'));
266             $m->connect('group', array('action' => 'groups'));
267             $m->connect('groups/', array('action' => 'groups'));
268             $m->connect('groups', array('action' => 'groups'));
269
270             // Twitter-compatible API
271
272             // statuses API
273
274             $m->connect('api/statuses/public_timeline.:format',
275                         array('action' => 'ApiTimelinePublic',
276                               'format' => '(xml|json|rss|atom)'));
277
278             $m->connect('api/statuses/friends_timeline.:format',
279                         array('action' => 'ApiTimelineFriends',
280                               'format' => '(xml|json|rss|atom)'));
281
282             $m->connect('api/statuses/friends_timeline/:id.:format',
283                         array('action' => 'ApiTimelineFriends',
284                               'id' => '[a-zA-Z0-9]+',
285                               'format' => '(xml|json|rss|atom)'));
286
287             $m->connect('api/statuses/home_timeline.:format',
288                         array('action' => 'ApiTimelineHome',
289                               'format' => '(xml|json|rss|atom)'));
290
291             $m->connect('api/statuses/home_timeline/:id.:format',
292                         array('action' => 'ApiTimelineHome',
293                               'id' => '[a-zA-Z0-9]+',
294                               'format' => '(xml|json|rss|atom)'));
295
296             $m->connect('api/statuses/user_timeline.:format',
297                         array('action' => 'ApiTimelineUser',
298                               'format' => '(xml|json|rss|atom)'));
299
300             $m->connect('api/statuses/user_timeline/:id.:format',
301                         array('action' => 'ApiTimelineUser',
302                               'id' => '[a-zA-Z0-9]+',
303                               'format' => '(xml|json|rss|atom)'));
304
305             $m->connect('api/statuses/mentions.:format',
306                         array('action' => 'ApiTimelineMentions',
307                               'format' => '(xml|json|rss|atom)'));
308
309             $m->connect('api/statuses/mentions/:id.:format',
310                         array('action' => 'ApiTimelineMentions',
311                               'id' => '[a-zA-Z0-9]+',
312                               'format' => '(xml|json|rss|atom)'));
313
314             $m->connect('api/statuses/replies.:format',
315                         array('action' => 'ApiTimelineMentions',
316                               'format' => '(xml|json|rss|atom)'));
317
318             $m->connect('api/statuses/replies/:id.:format',
319                         array('action' => 'ApiTimelineMentions',
320                               'id' => '[a-zA-Z0-9]+',
321                               'format' => '(xml|json|rss|atom)'));
322
323             $m->connect('api/statuses/retweeted_by_me.:format',
324                         array('action' => 'ApiTimelineRetweetedByMe',
325                               'format' => '(xml|json|atom)'));
326
327             $m->connect('api/statuses/retweeted_to_me.:format',
328                         array('action' => 'ApiTimelineRetweetedToMe',
329                               'format' => '(xml|json|atom)'));
330
331             $m->connect('api/statuses/retweets_of_me.:format',
332                         array('action' => 'ApiTimelineRetweetsOfMe',
333                               'format' => '(xml|json|atom)'));
334
335             $m->connect('api/statuses/friends.:format',
336                         array('action' => 'ApiUserFriends',
337                               'format' => '(xml|json)'));
338
339             $m->connect('api/statuses/friends/:id.:format',
340                         array('action' => 'ApiUserFriends',
341                               'id' => '[a-zA-Z0-9]+',
342                               'format' => '(xml|json)'));
343
344             $m->connect('api/statuses/followers.:format',
345                         array('action' => 'ApiUserFollowers',
346                               'format' => '(xml|json)'));
347
348             $m->connect('api/statuses/followers/:id.:format',
349                         array('action' => 'ApiUserFollowers',
350                               'id' => '[a-zA-Z0-9]+',
351                               'format' => '(xml|json)'));
352
353             $m->connect('api/statuses/show.:format',
354                         array('action' => 'ApiStatusesShow',
355                               'format' => '(xml|json)'));
356
357             $m->connect('api/statuses/show/:id.:format',
358                         array('action' => 'ApiStatusesShow',
359                               'id' => '[0-9]+',
360                               'format' => '(xml|json)'));
361
362             $m->connect('api/statuses/update.:format',
363                         array('action' => 'ApiStatusesUpdate',
364                               'format' => '(xml|json)'));
365
366             $m->connect('api/statuses/destroy.:format',
367                         array('action' => 'ApiStatusesDestroy',
368                               'format' => '(xml|json)'));
369
370             $m->connect('api/statuses/destroy/:id.:format',
371                         array('action' => 'ApiStatusesDestroy',
372                               'id' => '[0-9]+',
373                               'format' => '(xml|json)'));
374
375             $m->connect('api/statuses/retweet/:id.:format',
376                         array('action' => 'ApiStatusesRetweet',
377                               'id' => '[0-9]+',
378                               'format' => '(xml|json)'));
379
380             $m->connect('api/statuses/retweets/:id.:format',
381                         array('action' => 'ApiStatusesRetweets',
382                               'id' => '[0-9]+',
383                               'format' => '(xml|json)'));
384
385             // users
386
387             $m->connect('api/users/show.:format',
388                         array('action' => 'ApiUserShow',
389                               'format' => '(xml|json)'));
390
391             $m->connect('api/users/show/:id.:format',
392                         array('action' => 'ApiUserShow',
393                               'id' => '[a-zA-Z0-9]+',
394                               'format' => '(xml|json)'));
395
396             // direct messages
397
398             $m->connect('api/direct_messages.:format',
399                         array('action' => 'ApiDirectMessage',
400                               'format' => '(xml|json|rss|atom)'));
401
402             $m->connect('api/direct_messages/sent.:format',
403                         array('action' => 'ApiDirectMessage',
404                               'format' => '(xml|json|rss|atom)',
405                               'sent' => true));
406
407             $m->connect('api/direct_messages/new.:format',
408                         array('action' => 'ApiDirectMessageNew',
409                               'format' => '(xml|json)'));
410
411             // friendships
412
413             $m->connect('api/friendships/show.:format',
414                         array('action' => 'ApiFriendshipsShow',
415                               'format' => '(xml|json)'));
416
417             $m->connect('api/friendships/exists.:format',
418                         array('action' => 'ApiFriendshipsExists',
419                               'format' => '(xml|json)'));
420
421             $m->connect('api/friendships/create.:format',
422                         array('action' => 'ApiFriendshipsCreate',
423                               'format' => '(xml|json)'));
424
425             $m->connect('api/friendships/destroy.:format',
426                         array('action' => 'ApiFriendshipsDestroy',
427                               'format' => '(xml|json)'));
428
429             $m->connect('api/friendships/create/:id.:format',
430                         array('action' => 'ApiFriendshipsCreate',
431                               'id' => '[a-zA-Z0-9]+',
432                               'format' => '(xml|json)'));
433
434             $m->connect('api/friendships/destroy/:id.:format',
435                         array('action' => 'ApiFriendshipsDestroy',
436                               'id' => '[a-zA-Z0-9]+',
437                               'format' => '(xml|json)'));
438
439             // Social graph
440
441             $m->connect('api/friends/ids/:id.:format',
442                         array('action' => 'apiFriends',
443                               'ids_only' => true));
444
445             $m->connect('api/followers/ids/:id.:format',
446                         array('action' => 'apiFollowers',
447                               'ids_only' => true));
448
449             $m->connect('api/friends/ids.:format',
450                         array('action' => 'apiFriends',
451                               'ids_only' => true));
452
453             $m->connect('api/followers/ids.:format',
454                         array('action' => 'apiFollowers',
455                               'ids_only' => true));
456
457             // account
458
459             $m->connect('api/account/verify_credentials.:format',
460                         array('action' => 'ApiAccountVerifyCredentials'));
461
462             $m->connect('api/account/update_profile.:format',
463                         array('action' => 'ApiAccountUpdateProfile'));
464
465             $m->connect('api/account/update_profile_image.:format',
466                         array('action' => 'ApiAccountUpdateProfileImage'));
467
468             $m->connect('api/account/update_profile_background_image.:format',
469                         array('action' => 'ApiAccountUpdateProfileBackgroundImage'));
470
471             $m->connect('api/account/update_profile_colors.:format',
472                         array('action' => 'ApiAccountUpdateProfileColors'));
473
474             $m->connect('api/account/update_delivery_device.:format',
475                         array('action' => 'ApiAccountUpdateDeliveryDevice'));
476
477             // special case where verify_credentials is called w/out a format
478
479             $m->connect('api/account/verify_credentials',
480                         array('action' => 'ApiAccountVerifyCredentials'));
481
482             $m->connect('api/account/rate_limit_status.:format',
483                         array('action' => 'ApiAccountRateLimitStatus'));
484
485             // favorites
486
487             $m->connect('api/favorites.:format',
488                         array('action' => 'ApiTimelineFavorites',
489                               'format' => '(xml|json|rss|atom)'));
490
491             $m->connect('api/favorites/:id.:format',
492                         array('action' => 'ApiTimelineFavorites',
493                               'id' => '[a-zA-Z0-9]+',
494                               'format' => '(xmljson|rss|atom)'));
495
496             $m->connect('api/favorites/create/:id.:format',
497                         array('action' => 'ApiFavoriteCreate',
498                               'id' => '[a-zA-Z0-9]+',
499                               'format' => '(xml|json)'));
500
501             $m->connect('api/favorites/destroy/:id.:format',
502                         array('action' => 'ApiFavoriteDestroy',
503                               'id' => '[a-zA-Z0-9]+',
504                               'format' => '(xml|json)'));
505             // blocks
506
507             $m->connect('api/blocks/create/:id.:format',
508                         array('action' => 'ApiBlockCreate',
509                               'id' => '[a-zA-Z0-9]+',
510                               'format' => '(xml|json)'));
511
512             $m->connect('api/blocks/destroy/:id.:format',
513                         array('action' => 'ApiBlockDestroy',
514                               'id' => '[a-zA-Z0-9]+',
515                               'format' => '(xml|json)'));
516             // help
517
518             $m->connect('api/help/test.:format',
519                         array('action' => 'ApiHelpTest',
520                               'format' => '(xml|json)'));
521
522             // statusnet
523
524             $m->connect('api/statusnet/version.:format',
525                         array('action' => 'ApiStatusnetVersion',
526                               'format' => '(xml|json)'));
527
528             $m->connect('api/statusnet/config.:format',
529                         array('action' => 'ApiStatusnetConfig',
530                               'format' => '(xml|json)'));
531
532             // For older methods, we provide "laconica" base action
533
534             $m->connect('api/laconica/version.:format',
535                         array('action' => 'ApiStatusnetVersion',
536                               'format' => '(xml|json)'));
537
538             $m->connect('api/laconica/config.:format',
539                         array('action' => 'ApiStatusnetConfig',
540                               'format' => '(xml|json)'));
541
542             // Groups and tags are newer than 0.8.1 so no backward-compatibility
543             // necessary
544
545             // Groups
546             //'list' has to be handled differently, as php will not allow a method to be named 'list'
547
548             $m->connect('api/statusnet/groups/timeline/:id.:format',
549                         array('action' => 'ApiTimelineGroup',
550                               'id' => '[a-zA-Z0-9]+',
551                               'format' => '(xmljson|rss|atom)'));
552
553             $m->connect('api/statusnet/groups/show.:format',
554                         array('action' => 'ApiGroupShow',
555                               'format' => '(xml|json)'));
556
557             $m->connect('api/statusnet/groups/show/:id.:format',
558                         array('action' => 'ApiGroupShow',
559                               'id' => '[a-zA-Z0-9]+',
560                               'format' => '(xml|json)'));
561
562             $m->connect('api/statusnet/groups/join.:format',
563                         array('action' => 'ApiGroupJoin',
564                               'id' => '[a-zA-Z0-9]+',
565                               'format' => '(xml|json)'));
566
567             $m->connect('api/statusnet/groups/join/:id.:format',
568                         array('action' => 'ApiGroupJoin',
569                               'format' => '(xml|json)'));
570
571             $m->connect('api/statusnet/groups/leave.:format',
572                         array('action' => 'ApiGroupLeave',
573                               'id' => '[a-zA-Z0-9]+',
574                               'format' => '(xml|json)'));
575
576             $m->connect('api/statusnet/groups/leave/:id.:format',
577                         array('action' => 'ApiGroupLeave',
578                               'format' => '(xml|json)'));
579
580             $m->connect('api/statusnet/groups/is_member.:format',
581                         array('action' => 'ApiGroupIsMember',
582                               'format' => '(xml|json)'));
583
584             $m->connect('api/statusnet/groups/list.:format',
585                         array('action' => 'ApiGroupList',
586                               'format' => '(xml|json|rss|atom)'));
587
588             $m->connect('api/statusnet/groups/list/:id.:format',
589                         array('action' => 'ApiGroupList',
590                               'id' => '[a-zA-Z0-9]+',
591                               'format' => '(xml|json|rss|atom)'));
592
593             $m->connect('api/statusnet/groups/list_all.:format',
594                         array('action' => 'ApiGroupListAll',
595                               'format' => '(xml|json|rss|atom)'));
596
597             $m->connect('api/statusnet/groups/membership.:format',
598                         array('action' => 'ApiGroupMembership',
599                               'format' => '(xml|json)'));
600
601             $m->connect('api/statusnet/groups/membership/:id.:format',
602                         array('action' => 'ApiGroupMembership',
603                               'id' => '[a-zA-Z0-9]+',
604                               'format' => '(xml|json)'));
605
606             $m->connect('api/statusnet/groups/create.:format',
607                         array('action' => 'ApiGroupCreate',
608                               'format' => '(xml|json)'));
609             // Tags
610             $m->connect('api/statusnet/tags/timeline/:tag.:format',
611                         array('action' => 'ApiTimelineTag',
612                               'format' => '(xmljson|rss|atom)'));
613
614             // search
615             $m->connect('api/search.atom', array('action' => 'twitapisearchatom'));
616             $m->connect('api/search.json', array('action' => 'twitapisearchjson'));
617             $m->connect('api/trends.json', array('action' => 'twitapitrends'));
618
619             $m->connect('admin/site', array('action' => 'siteadminpanel'));
620             $m->connect('admin/design', array('action' => 'designadminpanel'));
621             $m->connect('admin/user', array('action' => 'useradminpanel'));
622             $m->connect('admin/paths', array('action' => 'pathsadminpanel'));
623
624             $m->connect('getfile/:filename',
625                         array('action' => 'getfile'),
626                         array('filename' => '[A-Za-z0-9._-]+'));
627
628             // user stuff
629
630             foreach (array('subscriptions', 'subscribers',
631                            'nudge', 'all', 'foaf', 'xrds',
632                            'replies', 'inbox', 'outbox', 'microsummary') as $a) {
633                 $m->connect(':nickname/'.$a,
634                             array('action' => $a),
635                             array('nickname' => '[a-zA-Z0-9]{1,64}'));
636             }
637
638             foreach (array('subscriptions', 'subscribers') as $a) {
639                 $m->connect(':nickname/'.$a.'/:tag',
640                             array('action' => $a),
641                             array('tag' => '[a-zA-Z0-9]+',
642                                   'nickname' => '[a-zA-Z0-9]{1,64}'));
643             }
644
645             foreach (array('rss', 'groups') as $a) {
646                 $m->connect(':nickname/'.$a,
647                             array('action' => 'user'.$a),
648                             array('nickname' => '[a-zA-Z0-9]{1,64}'));
649             }
650
651             foreach (array('all', 'replies', 'favorites') as $a) {
652                 $m->connect(':nickname/'.$a.'/rss',
653                             array('action' => $a.'rss'),
654                             array('nickname' => '[a-zA-Z0-9]{1,64}'));
655             }
656
657             $m->connect(':nickname/favorites',
658                         array('action' => 'showfavorites'),
659                         array('nickname' => '[a-zA-Z0-9]{1,64}'));
660
661             $m->connect(':nickname/avatar/:size',
662                         array('action' => 'avatarbynickname'),
663                         array('size' => '(original|96|48|24)',
664                               'nickname' => '[a-zA-Z0-9]{1,64}'));
665
666             $m->connect(':nickname/tag/:tag/rss',
667                         array('action' => 'userrss'),
668                         array('nickname' => '[a-zA-Z0-9]{1,64}'),
669                         array('tag' => '[a-zA-Z0-9]+'));
670
671             $m->connect(':nickname/tag/:tag',
672                         array('action' => 'showstream'),
673                         array('nickname' => '[a-zA-Z0-9]{1,64}'),
674                         array('tag' => '[a-zA-Z0-9]+'));
675
676             $m->connect(':nickname',
677                         array('action' => 'showstream'),
678                         array('nickname' => '[a-zA-Z0-9]{1,64}'));
679
680             Event::handle('RouterInitialized', array($m));
681         }
682
683         return $m;
684     }
685
686     function map($path)
687     {
688         try {
689             $match = $this->m->match($path);
690         } catch (Net_URL_Mapper_InvalidException $e) {
691             common_log(LOG_ERR, "Problem getting route for $path - " .
692                        $e->getMessage());
693             $cac = new ClientErrorAction("Page not found.", 404);
694             $cac->showPage();
695         }
696
697         return $match;
698     }
699
700     function build($action, $args=null, $params=null, $fragment=null)
701     {
702         $action_arg = array('action' => $action);
703
704         if ($args) {
705             $args = array_merge($action_arg, $args);
706         } else {
707             $args = $action_arg;
708         }
709
710         $url = $this->m->generate($args, $params, $fragment);
711
712         // Due to a bug in the Net_URL_Mapper code, the returned URL may
713         // contain a malformed query of the form ?p1=v1?p2=v2?p3=v3. We
714         // repair that here rather than modifying the upstream code...
715
716         $qpos = strpos($url, '?');
717         if ($qpos !== false) {
718             $url = substr($url, 0, $qpos+1) .
719               str_replace('?', '&', substr($url, $qpos+1));
720         }
721         return $url;
722     }
723 }