summaryrefslogtreecommitdiff
path: root/actions/apitimelineuser.php
blob: 42988a00f6b7ed5cc78a9ecf3af98b65503521fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
<?php
/**
 * StatusNet, the distributed open-source microblogging tool
 *
 * Show a user's timeline
 *
 * PHP version 5
 *
 * LICENCE: This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @category  API
 * @package   StatusNet
 * @author    Craig Andrews <candrews@integralblue.com>
 * @author    Evan Prodromou <evan@status.net>
 * @author    Jeffery To <jeffery.to@gmail.com>
 * @author    mac65 <mac65@mac65.com>
 * @author    Mike Cochrane <mikec@mikenz.geek.nz>
 * @author    Robin Millette <robin@millette.info>
 * @author    Zach Copley <zach@status.net>
 * @copyright 2009 StatusNet, Inc.
 * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link      http://status.net/
 */

if (!defined('STATUSNET')) {
    exit(1);
}

require_once INSTALLDIR . '/lib/apibareauth.php';

/**
 * Returns the most recent notices (default 20) posted by the authenticating
 * user. Another user's timeline can be requested via the id parameter. This
 * is the API equivalent of the user profile web page.
 *
 * @category API
 * @package  StatusNet
 * @author   Craig Andrews <candrews@integralblue.com>
 * @author   Evan Prodromou <evan@status.net>
 * @author   Jeffery To <jeffery.to@gmail.com>
 * @author   mac65 <mac65@mac65.com>
 * @author   Mike Cochrane <mikec@mikenz.geek.nz>
 * @author   Robin Millette <robin@millette.info>
 * @author   Zach Copley <zach@status.net>
 * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link     http://status.net/
 */
class ApiTimelineUserAction extends ApiBareAuthAction
{
    var $notices = null;

    /**
     * Take arguments for running
     *
     * @param array $args $_REQUEST args
     *
     * @return boolean success flag
     */
    function prepare($args)
    {
        parent::prepare($args);

        $this->user = $this->getTargetUser($this->arg('id'));

        if (empty($this->user)) {
            // TRANS: Client error displayed requesting most recent notices for a non-existing user.
            $this->clientError(_('No such user.'), 404, $this->format);
            return;
        }

        $this->notices = $this->getNotices();

        return true;
    }

    /**
     * Handle the request
     *
     * Just show the notices
     *
     * @param array $args $_REQUEST data (unused)
     *
     * @return void
     */
    function handle($args)
    {
        parent::handle($args);

        if ($this->isPost()) {
            $this->handlePost();
        } else {
            $this->showTimeline();
        }
    }

    /**
     * Show the timeline of notices
     *
     * @return void
     */
    function showTimeline()
    {
        $profile = $this->user->getProfile();

        // We'll use the shared params from the Atom stub
        // for other feed types.
        $atom = new AtomUserNoticeFeed($this->user, $this->auth_user);

        $link = common_local_url(
                                 'showstream',
                                 array('nickname' => $this->user->nickname)
                                 );

        $self = $this->getSelfUri();

        // FriendFeed's SUP protocol
        // Also added RSS and Atom feeds

        $suplink = common_local_url('sup', null, null, $this->user->id);
        header('X-SUP-ID: ' . $suplink);

        switch($this->format) {
        case 'xml':
            $this->showXmlTimeline($this->notices);
            break;
        case 'rss':
            $this->showRssTimeline(
                                   $this->notices,
                                   $atom->title,
                                   $link,
                                   $atom->subtitle,
                                   $suplink,
                                   $atom->logo,
                                   $self
                                   );
            break;
        case 'atom':
            header('Content-Type: application/atom+xml; charset=utf-8');

            $atom->setId($self);
            $atom->setSelfLink($self);

            // Add navigation links: next, prev, first
            // Note: we use IDs rather than pages for navigation; page boundaries
            // change too quickly!

            if (!empty($this->next_id)) {
                $nextUrl = common_local_url('ApiTimelineUser',
                                            array('format' => 'atom',
                                                  'id' => $this->user->id),
                                            array('max_id' => $this->next_id));

                $atom->addLink($nextUrl,
                               array('rel' => 'next',
                                     'type' => 'application/atom+xml'));
            }

            if (($this->page > 1 || !empty($this->max_id)) && !empty($this->notices)) {

                $lastNotice = $this->notices[0];
                $lastId     = $lastNotice->id;

                $prevUrl = common_local_url('ApiTimelineUser',
                                            array('format' => 'atom',
                                                  'id' => $this->user->id),
                                            array('since_id' => $lastId));

                $atom->addLink($prevUrl,
                               array('rel' => 'prev',
                                     'type' => 'application/atom+xml'));
            }

            if ($this->page > 1 || !empty($this->since_id) || !empty($this->max_id)) {

                $firstUrl = common_local_url('ApiTimelineUser',
                                            array('format' => 'atom',
                                                  'id' => $this->user->id));

                $atom->addLink($firstUrl,
                               array('rel' => 'first',
                                     'type' => 'application/atom+xml'));

            }

            $atom->addEntryFromNotices($this->notices);
            $this->raw($atom->getString());

            break;
        case 'json':
            $this->showJsonTimeline($this->notices);
            break;
        default:
            // TRANS: Client error displayed when trying to handle an unknown API method.
            $this->clientError(_('API method not found.'), $code = 404);
            break;
        }
    }

    /**
     * Get notices
     *
     * @return array notices
     */
    function getNotices()
    {
        $notices = array();

        $notice = $this->user->getNotices(($this->page-1) * $this->count,
                                          $this->count + 1,
                                          $this->since_id,
                                          $this->max_id);

        while ($notice->fetch()) {
            if (count($notices) < $this->count) {
                $notices[] = clone($notice);
            } else {
                $this->next_id = $notice->id;
                break;
            }
        }

        return $notices;
    }

    /**
     * We expose AtomPub here, so non-GET/HEAD reqs must be read/write.
     *
     * @param array $args other arguments
     *
     * @return boolean true
     */
    
    function isReadOnly($args)
    {
        return ($_SERVER['REQUEST_METHOD'] == 'GET' || $_SERVER['REQUEST_METHOD'] == 'HEAD');
    }

    /**
     * When was this feed last modified?
     *
     * @return string datestamp of the latest notice in the stream
     */
    function lastModified()
    {
        if (!empty($this->notices) && (count($this->notices) > 0)) {
            return strtotime($this->notices[0]->created);
        }

        return null;
    }

    /**
     * An entity tag for this stream
     *
     * Returns an Etag based on the action name, language, user ID, and
     * timestamps of the first and last notice in the timeline
     *
     * @return string etag
     */
    function etag()
    {
        if (!empty($this->notices) && (count($this->notices) > 0)) {
            $last = count($this->notices) - 1;

            return '"' . implode(
                                 ':',
                                 array($this->arg('action'),
                                       common_user_cache_hash($this->auth_user),
                                       common_language(),
                                       $this->user->id,
                                       strtotime($this->notices[0]->created),
                                       strtotime($this->notices[$last]->created))
                                 )
              . '"';
        }

        return null;
    }

    function handlePost()
    {
        if (empty($this->auth_user) ||
            $this->auth_user->id != $this->user->id) {
            // TRANS: Client error displayed trying to add a notice to another user's timeline.
            $this->clientError(_('Only the user can add to their own timeline.'));
            return;
        }

        // Only handle posts for Atom
        if ($this->format != 'atom') {
            // TRANS: Client error displayed when using another format than AtomPub.
            $this->clientError(_('Only accept AtomPub for Atom feeds.'));
            return;
        }

        $xml = trim(file_get_contents('php://input'));
        if (empty($xml)) {
            $this->clientError(_('Atom post must not be empty.'));
        }

        $dom = DOMDocument::loadXML($xml);
        if (!$dom) {
            $this->clientError(_('Atom post must be well-formed XML.'));
        }

        if ($dom->documentElement->namespaceURI != Activity::ATOM ||
            $dom->documentElement->localName != 'entry') {
            // TRANS: Client error displayed when not using an Atom entry.
            $this->clientError(_('Atom post must be an Atom entry.'));
            return;
        }

        $activity = new Activity($dom->documentElement);

        if (Event::handle('StartAtomPubNewActivity', array(&$activity))) {

            if ($activity->verb != ActivityVerb::POST) {
                // TRANS: Client error displayed when not using the POST verb.
                // TRANS: Do not translate POST.
                $this->clientError(_('Can only handle POST activities.'));
                return;
            }

            $note = $activity->objects[0];

            if (!in_array($note->type, array(ActivityObject::NOTE,
                                             ActivityObject::BLOGENTRY,
                                             ActivityObject::STATUS))) {
                // TRANS: Client error displayed when using an unsupported activity object type.
                // TRANS: %s is the unsupported activity object type.
                $this->clientError(sprintf(_('Cannot handle activity object type "%s".'),
                                             $note->type));
                return;
            }

            $saved = $this->postNote($activity);

            Event::handle('EndAtomPubNewActivity', array($activity, $saved));
        }

        if (!empty($saved)) {
            header('HTTP/1.1 201 Created');
            header("Location: " . common_local_url('ApiStatusesShow', array('id' => $saved->id,
                                                                            'format' => 'atom')));
            $this->showSingleAtomStatus($saved);
        }
    }

    function postNote($activity)
    {
        $note = $activity->objects[0];

        // Use summary as fallback for content

        if (!empty($note->content)) {
            $sourceContent = $note->content;
        } else if (!empty($note->summary)) {
            $sourceContent = $note->summary;
        } else if (!empty($note->title)) {
            $sourceContent = $note->title;
        } else {
            // @fixme fetch from $sourceUrl?
            // TRANS: Client error displayed when posting a notice without content through the API.
            $this->clientError(sprintf(_('No content for notice %d.'),
                                       $note->id));
            return;
        }

        // Get (safe!) HTML and text versions of the content

        $rendered = $this->purify($sourceContent);
        $content = html_entity_decode(strip_tags($rendered), ENT_QUOTES, 'UTF-8');

        $shortened = $this->auth_user->shortenLinks($content);

        $options = array('is_local' => Notice::LOCAL_PUBLIC,
                         'rendered' => $rendered,
                         'replies' => array(),
                         'groups' => array(),
                         'tags' => array(),
                         'urls' => array());

        // accept remote URI (not necessarily a good idea)

        common_debug("Note ID is {$note->id}");

        if (!empty($note->id)) {
            $notice = Notice::staticGet('uri', trim($note->id));

            if (!empty($notice)) {
                // TRANS: Client error displayed when using another format than AtomPub.
                $this->clientError(sprintf(_('Notice with URI "%s" already exists.'),
                                           $note->id));
                return;
            }
            common_log(LOG_NOTICE, "Saving client-supplied notice URI '$note->id'");
            $options['uri'] = $note->id;
        }

        // accept remote create time (also maybe not such a good idea)

        if (!empty($activity->time)) {
            common_log(LOG_NOTICE, "Saving client-supplied create time {$activity->time}");
            $options['created'] = common_sql_date($activity->time);
        }

        // Check for optional attributes...

        if (!empty($activity->context)) {

            foreach ($activity->context->attention as $uri) {

                $profile = Profile::fromURI($uri);

                if (!empty($profile)) {
                    $options['replies'] = $uri;
                } else {
                    $group = User_group::staticGet('uri', $uri);
                    if (!empty($group)) {
                        $options['groups'] = $uri;
                    } else {
                        // @fixme: hook for discovery here
                        common_log(LOG_WARNING, sprintf(_('AtomPub post with unknown attention URI %s'), $uri));
                    }
                }
            }

            // Maintain direct reply associations
            // @fixme what about conversation ID?

            if (!empty($activity->context->replyToID)) {
                $orig = Notice::staticGet('uri',
                                          $activity->context->replyToID);
                if (!empty($orig)) {
                    $options['reply_to'] = $orig->id;
                }
            }

            $location = $activity->context->location;

            if ($location) {
                $options['lat'] = $location->lat;
                $options['lon'] = $location->lon;
                if ($location->location_id) {
                    $options['location_ns'] = $location->location_ns;
                    $options['location_id'] = $location->location_id;
                }
            }
        }

        // Atom categories <-> hashtags

        foreach ($activity->categories as $cat) {
            if ($cat->term) {
                $term = common_canonical_tag($cat->term);
                if ($term) {
                    $options['tags'][] = $term;
                }
            }
        }

        // Atom enclosures -> attachment URLs
        foreach ($activity->enclosures as $href) {
            // @fixme save these locally or....?
            $options['urls'][] = $href;
        }

        $saved = Notice::saveNew($this->user->id,
                                 $content,
                                 'atompub', // TODO: deal with this
                                 $options);

        return $saved;
    }

    function purify($content)
    {
        require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';

        $config = array('safe' => 1,
                        'deny_attribute' => 'id,style,on*');
        return htmLawed($content, $config);
    }
}