summaryrefslogtreecommitdiff
path: root/plugins/TwitterBridge/daemons/twitterstatusfetcher.php
blob: dfd2d274c58ff240d13c865ba24123560244965a (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
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
#!/usr/bin/env php
<?php
/**
 * StatusNet - the distributed open-source microblogging tool
 * Copyright (C) 2008-2010, StatusNet, Inc.
 *
 * 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/>.
 */

define('INSTALLDIR', realpath(dirname(__FILE__) . '/../../..'));

// Tune number of processes and how often to poll Twitter
// XXX: Should these things be in config.php?
define('MAXCHILDREN', 2);
define('POLL_INTERVAL', 60); // in seconds

$shortoptions = 'di::';
$longoptions = array('id::', 'debug');

$helptext = <<<END_OF_TRIM_HELP
Batch script for retrieving Twitter messages from foreign service.

  -i --id              Identity (default 'generic')
  -d --debug           Debug (lots of log output)

END_OF_TRIM_HELP;

require_once INSTALLDIR . '/scripts/commandline.inc';
require_once INSTALLDIR . '/lib/common.php';
require_once INSTALLDIR . '/lib/daemon.php';
require_once INSTALLDIR . '/plugins/TwitterBridge/twitter.php';
require_once INSTALLDIR . '/plugins/TwitterBridge/twitterbasicauthclient.php';
require_once INSTALLDIR . '/plugins/TwitterBridge/twitteroauthclient.php';

/**
 * Fetch statuses from Twitter
 *
 * Fetches statuses from Twitter and inserts them as notices
 *
 * NOTE: an Avatar path MUST be set in config.php for this
 * script to work, e.g.:
 *     $config['avatar']['path'] = $config['site']['path'] . '/avatar/';
 *
 * @todo @fixme @gar Fix the above. For some reason $_path is always empty when
 * this script is run, so the default avatar path is always set wrong in
 * default.php. Therefore it must be set explicitly in config.php. --Z
 *
 * @category Twitter
 * @package  StatusNet
 * @author   Zach Copley <zach@status.net>
 * @author   Evan Prodromou <evan@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 TwitterStatusFetcher extends ParallelizingDaemon
{
    /**
     *  Constructor
     *
     * @param string  $id           the name/id of this daemon
     * @param int     $interval     sleep this long before doing everything again
     * @param int     $max_children maximum number of child processes at a time
     * @param boolean $debug        debug output flag
     *
     * @return void
     *
     **/
    function __construct($id = null, $interval = 60,
                         $max_children = 2, $debug = null)
    {
        parent::__construct($id, $interval, $max_children, $debug);
    }

    /**
     * Name of this daemon
     *
     * @return string Name of the daemon.
     */

    function name()
    {
        return ('twitterstatusfetcher.'.$this->_id);
    }

    /**
     * Find all the Twitter foreign links for users who have requested
     * importing of their friends' timelines
     *
     * @return array flinks an array of Foreign_link objects
     */

    function getObjects()
    {
        global $_DB_DATAOBJECT;

        $flink = new Foreign_link();
        $conn = &$flink->getDatabaseConnection();

        $flink->service = TWITTER_SERVICE;
        $flink->orderBy('last_noticesync');
        $flink->find();

        $flinks = array();

        while ($flink->fetch()) {

            if (($flink->noticesync & FOREIGN_NOTICE_RECV) ==
                FOREIGN_NOTICE_RECV) {
                $flinks[] = clone($flink);
                common_log(LOG_INFO, "sync: foreign id $flink->foreign_id");
            } else {
                common_log(LOG_INFO, "nothing to sync");
            }
        }

        $flink->free();
        unset($flink);

        $conn->disconnect();
        unset($_DB_DATAOBJECT['CONNECTIONS']);

        return $flinks;
    }

    function childTask($flink) {

        // Each child ps needs its own DB connection

        // Note: DataObject::getDatabaseConnection() creates
        // a new connection if there isn't one already

        $conn = &$flink->getDatabaseConnection();

        $this->getTimeline($flink);

        $flink->last_friendsync = common_sql_now();
        $flink->update();

        $conn->disconnect();

        // XXX: Couldn't find a less brutal way to blow
        // away a cached connection

        global $_DB_DATAOBJECT;
        unset($_DB_DATAOBJECT['CONNECTIONS']);
    }

    function getTimeline($flink)
    {
        if (empty($flink)) {
            common_log(LOG_WARNING, $this->name() .
                       " - Can't retrieve Foreign_link for foreign ID $fid");
            return;
        }

        common_debug($this->name() . ' - Trying to get timeline for Twitter user ' .
                     $flink->foreign_id);

        // XXX: Biggest remaining issue - How do we know at which status
        // to start importing?  How many statuses?  Right now I'm going
        // with the default last 20.

        $client = null;

        if (TwitterOAuthClient::isPackedToken($flink->credentials)) {
            $token = TwitterOAuthClient::unpackToken($flink->credentials);
            $client = new TwitterOAuthClient($token->key, $token->secret);
            common_debug($this->name() . ' - Grabbing friends timeline with OAuth.');
        } else {
            common_debug("Skipping friends timeline for $flink->foreign_id since not OAuth.");
        }

        $timeline = null;

        try {
            $timeline = $client->statusesHomeTimeline();
        } catch (Exception $e) {
            common_log(LOG_WARNING, $this->name() .
                       ' - Twitter client unable to get friends timeline for user ' .
                       $flink->user_id . ' - code: ' .
                       $e->getCode() . 'msg: ' . $e->getMessage());
        }

        if (empty($timeline)) {
            common_log(LOG_WARNING, $this->name() .  " - Empty timeline.");
            return;
        }

        common_debug(LOG_INFO, $this->name() . ' - Retrieved ' . sizeof($timeline) . ' statuses from Twitter.');

        // Reverse to preserve order

        foreach (array_reverse($timeline) as $status) {

            // Hacktastic: filter out stuff coming from this StatusNet

            $source = mb_strtolower(common_config('integration', 'source'));

            if (preg_match("/$source/", mb_strtolower($status->source))) {
                common_debug($this->name() . ' - Skipping import of status ' .
                             $status->id . ' with source ' . $source);
                continue;
            }

            // Don't save it if the user is protected
            // FIXME: save it but treat it as private

            if ($status->user->protected) {
                continue;
            }

            $notice = $this->saveStatus($status);

            if (!empty($notice)) {
                Inbox::insertNotice($flink->user_id, $notice->id);
            }
        }

        // Okay, record the time we synced with Twitter for posterity

        $flink->last_noticesync = common_sql_now();
        $flink->update();
    }

    function saveStatus($status)
    {
        $profile = $this->ensureProfile($status->user);

        if (empty($profile)) {
            common_log(LOG_ERR, $this->name() .
                ' - Problem saving notice. No associated Profile.');
            return null;
        }

        $statusUri = $this->makeStatusURI($status->user->screen_name, $status->id);

        // check to see if we've already imported the status

        $dupe = $this->checkDupe($profile, $statusUri);

        if (!empty($dupe)) {
            common_log(
                LOG_INFO,
                $this->name() .
                " - Ignoring duplicate import: $statusUri"
            );
            return $dupe;
        }

        common_debug("Saving status {$status->id} with data " . print_r($status, true));

        // If it's a retweet, save it as a repeat!

        if (!empty($status->retweeted_status)) {
            common_log(LOG_INFO, "Status {$status->id} is a retweet of {$status->retweeted_status->id}.");
            $original = $this->saveStatus($status->retweeted_status);
            $repeat = $original->repeat($profile->id, 'twitter');
            common_log(LOG_INFO, "Saved {$repeat->id} as a repeat of {$original->id}");
            return $repeat;
        }

        $notice = new Notice();

        $notice->profile_id = $profile->id;
        $notice->uri        = $statusUri;
        $notice->url        = $statusUri;
        $notice->created    = strftime(
            '%Y-%m-%d %H:%M:%S',
            strtotime($status->created_at)
        );

        $notice->source     = 'twitter';

        $notice->reply_to   = null;

        if (!empty($status->in_reply_to_status_id)) {
            common_log(LOG_INFO, "Status {$status->id} is a reply to status {$status->in_reply_to_status_id}");
            $replyUri = $this->makeStatusURI($status->in_reply_to_screen_name, $status->in_reply_to_status_id);
            $reply = Notice::staticGet('uri', $replyUri);
            if (empty($reply)) {
                common_log(LOG_INFO, "Couldn't find local notice for status {$status->in_reply_to_status_id}");
            } else {
                common_log(LOG_INFO, "Found local notice {$reply->id} for status {$status->in_reply_to_status_id}");
                $notice->reply_to     = $reply->id;
                $notice->conversation = $reply->conversation;
            }
        }

        if (empty($notice->conversation)) {
            $conv = Conversation::create();
            $notice->conversation = $conv->id;
            common_log(LOG_INFO, "No known conversation for status {$status->id} so making a new one {$conv->id}.");
        }

        $notice->is_local   = Notice::GATEWAY;

        $notice->content    = common_shorten_links($status->text);
        $notice->rendered   = common_render_content(
            $notice->content,
            $notice
        );

        if (Event::handle('StartNoticeSave', array(&$notice))) {

            $id = $notice->insert();

            if (!$id) {
                common_log_db_error($notice, 'INSERT', __FILE__);
                common_log(LOG_ERR, $this->name() .
                    ' - Problem saving notice.');
            }

            Event::handle('EndNoticeSave', array($notice));
        }

        $notice->blowOnInsert();

        return $notice;
    }

    /**
     * Make an URI for a status.
     *
     * @param object $status status object
     *
     * @return string URI
     */

    function makeStatusURI($username, $id)
    {
        return 'http://twitter.com/'
          . $username
          . '/status/'
          . $id;
    }

    /**
     * Look up a Profile by profileurl field.  Profile::staticGet() was
     * not working consistently.
     *
     * @param string $nickname   local nickname of the Twitter user
     * @param string $profileurl the profile url
     *
     * @return mixed value the first Profile with that url, or null
     */

    function getProfileByUrl($nickname, $profileurl)
    {
        $profile = new Profile();
        $profile->nickname = $nickname;
        $profile->profileurl = $profileurl;
        $profile->limit(1);

        if ($profile->find()) {
            $profile->fetch();
            return $profile;
        }

        return null;
    }

    /**
     * Check to see if this Twitter status has already been imported
     *
     * @param Profile $profile   Twitter user's local profile
     * @param string  $statusUri URI of the status on Twitter
     *
     * @return mixed value a matching Notice or null
     */

    function checkDupe($profile, $statusUri)
    {
        $notice = new Notice();
        $notice->uri = $statusUri;
        $notice->profile_id = $profile->id;
        $notice->limit(1);

        if ($notice->find()) {
            $notice->fetch();
            return $notice;
        }

        return null;
    }

    function ensureProfile($user)
    {
        // check to see if there's already a profile for this user

        $profileurl = 'http://twitter.com/' . $user->screen_name;
        $profile = $this->getProfileByUrl($user->screen_name, $profileurl);

        if (!empty($profile)) {
            common_debug($this->name() .
                         " - Profile for $profile->nickname found.");

            // Check to see if the user's Avatar has changed

            $this->checkAvatar($user, $profile);
            return $profile;

        } else {

            common_debug($this->name() . ' - Adding profile and remote profile ' .
                         "for Twitter user: $profileurl.");

            $profile = new Profile();
            $profile->query("BEGIN");

            $profile->nickname = $user->screen_name;
            $profile->fullname = $user->name;
            $profile->homepage = $user->url;
            $profile->bio = $user->description;
            $profile->location = $user->location;
            $profile->profileurl = $profileurl;
            $profile->created = common_sql_now();

            try {
                $id = $profile->insert();
            } catch(Exception $e) {
                common_log(LOG_WARNING, $this->name . ' Couldn\'t insert profile - ' . $e->getMessage());
            }

            if (empty($id)) {
                common_log_db_error($profile, 'INSERT', __FILE__);
                $profile->query("ROLLBACK");
                return false;
            }

            // check for remote profile

            $remote_pro = Remote_profile::staticGet('uri', $profileurl);

            if (empty($remote_pro)) {

                $remote_pro = new Remote_profile();

                $remote_pro->id = $id;
                $remote_pro->uri = $profileurl;
                $remote_pro->created = common_sql_now();

                try {
                    $rid = $remote_pro->insert();
                } catch (Exception $e) {
                    common_log(LOG_WARNING, $this->name() . ' Couldn\'t save remote profile - ' . $e->getMessage());
                }

                if (empty($rid)) {
                    common_log_db_error($profile, 'INSERT', __FILE__);
                    $profile->query("ROLLBACK");
                    return false;
                }
            }

            $profile->query("COMMIT");

            $this->saveAvatars($user, $id);

            return $profile;
        }
    }

    function checkAvatar($twitter_user, $profile)
    {
        global $config;

        $path_parts = pathinfo($twitter_user->profile_image_url);

        $newname = 'Twitter_' . $twitter_user->id . '_' .
            $path_parts['basename'];

        $oldname = $profile->getAvatar(48)->filename;

        if ($newname != $oldname) {
            common_debug($this->name() . ' - Avatar for Twitter user ' .
                         "$profile->nickname has changed.");
            common_debug($this->name() . " - old: $oldname new: $newname");

            $this->updateAvatars($twitter_user, $profile);
        }

        if ($this->missingAvatarFile($profile)) {
            common_debug($this->name() . ' - Twitter user ' .
                         $profile->nickname .
                         ' is missing one or more local avatars.');
            common_debug($this->name() ." - old: $oldname new: $newname");

            $this->updateAvatars($twitter_user, $profile);
        }
    }

    function updateAvatars($twitter_user, $profile) {

        global $config;

        $path_parts = pathinfo($twitter_user->profile_image_url);

        $img_root = substr($path_parts['basename'], 0, -11);
        $ext = $path_parts['extension'];
        $mediatype = $this->getMediatype($ext);

        foreach (array('mini', 'normal', 'bigger') as $size) {
            $url = $path_parts['dirname'] . '/' .
                $img_root . '_' . $size . ".$ext";
            $filename = 'Twitter_' . $twitter_user->id . '_' .
                $img_root . "_$size.$ext";

            $this->updateAvatar($profile->id, $size, $mediatype, $filename);
            $this->fetchAvatar($url, $filename);
        }
    }

    function missingAvatarFile($profile) {
        foreach (array(24, 48, 73) as $size) {
            $filename = $profile->getAvatar($size)->filename;
            $avatarpath = Avatar::path($filename);
            if (file_exists($avatarpath) == FALSE) {
                return true;
            }
        }
        return false;
    }

    function getMediatype($ext)
    {
        $mediatype = null;

        switch (strtolower($ext)) {
        case 'jpg':
            $mediatype = 'image/jpg';
            break;
        case 'gif':
            $mediatype = 'image/gif';
            break;
        default:
            $mediatype = 'image/png';
        }

        return $mediatype;
    }

    function saveAvatars($user, $id)
    {
        global $config;

        $path_parts = pathinfo($user->profile_image_url);
        $ext = $path_parts['extension'];
        $end = strlen('_normal' . $ext);
        $img_root = substr($path_parts['basename'], 0, -($end+1));
        $mediatype = $this->getMediatype($ext);

        foreach (array('mini', 'normal', 'bigger') as $size) {
            $url = $path_parts['dirname'] . '/' .
                $img_root . '_' . $size . ".$ext";
            $filename = 'Twitter_' . $user->id . '_' .
                $img_root . "_$size.$ext";

            if ($this->fetchAvatar($url, $filename)) {
                $this->newAvatar($id, $size, $mediatype, $filename);
            } else {
                common_log(LOG_WARNING, $id() .
                           " - Problem fetching Avatar: $url");
            }
        }
    }

    function updateAvatar($profile_id, $size, $mediatype, $filename) {

        common_debug($this->name() . " - Updating avatar: $size");

        $profile = Profile::staticGet($profile_id);

        if (empty($profile)) {
            common_debug($this->name() . " - Couldn't get profile: $profile_id!");
            return;
        }

        $sizes = array('mini' => 24, 'normal' => 48, 'bigger' => 73);
        $avatar = $profile->getAvatar($sizes[$size]);

        // Delete the avatar, if present

        if ($avatar) {
            $avatar->delete();
        }

        $this->newAvatar($profile->id, $size, $mediatype, $filename);
    }

    function newAvatar($profile_id, $size, $mediatype, $filename)
    {
        global $config;

        $avatar = new Avatar();
        $avatar->profile_id = $profile_id;

        switch($size) {
        case 'mini':
            $avatar->width  = 24;
            $avatar->height = 24;
            break;
        case 'normal':
            $avatar->width  = 48;
            $avatar->height = 48;
            break;
        default:

            // Note: Twitter's big avatars are a different size than
            // StatusNet's (StatusNet's = 96)

            $avatar->width  = 73;
            $avatar->height = 73;
        }

        $avatar->original = 0; // we don't have the original
        $avatar->mediatype = $mediatype;
        $avatar->filename = $filename;
        $avatar->url = Avatar::url($filename);

        $avatar->created = common_sql_now();

        try {
            $id = $avatar->insert();
        } catch (Exception $e) {
            common_log(LOG_WARNING, $this->name() . ' Couldn\'t insert avatar - ' . $e->getMessage());
        }

        if (empty($id)) {
            common_log_db_error($avatar, 'INSERT', __FILE__);
            return null;
        }

        common_debug($this->name() .
                     " - Saved new $size avatar for $profile_id.");

        return $id;
    }

    /**
     * Fetch a remote avatar image and save to local storage.
     *
     * @param string $url avatar source URL
     * @param string $filename bare local filename for download
     * @return bool true on success, false on failure
     */
    function fetchAvatar($url, $filename)
    {
        common_debug($this->name() . " - Fetching Twitter avatar: $url");

        $request = HTTPClient::start();
        $response = $request->get($url);
        if ($response->isOk()) {
            $avatarfile = Avatar::path($filename);
            $ok = file_put_contents($avatarfile, $response->getBody());
            if (!$ok) {
                common_log(LOG_WARNING, $this->name() .
                           " - Couldn't open file $filename");
                return false;
            }
        } else {
            return false;
        }

        return true;
    }
}

$id    = null;
$debug = null;

if (have_option('i')) {
    $id = get_option_value('i');
} else if (have_option('--id')) {
    $id = get_option_value('--id');
} else if (count($args) > 0) {
    $id = $args[0];
} else {
    $id = null;
}

if (have_option('d') || have_option('debug')) {
    $debug = true;
}

$fetcher = new TwitterStatusFetcher($id, 60, 2, $debug);
$fetcher->runOnce();