3 * Name: Facebook Connector
5 * Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
6 * Tobias Hößl <https://github.com/CatoTH/>
10 * Installing the Friendica/Facebook connector
12 * Detailed instructions how to use this plugin can be found at
13 * https://github.com/friendica/friendica/wiki/How-to:-Friendica%E2%80%99s-Facebook-connector
15 * Vidoes and embeds will not be posted if there is no other content. Links
16 * and images will be converted to a format suitable for the Facebook API and
17 * long posts truncated - with a link to view the full post.
19 * Facebook contacts will not be able to view private photos, as they are not able to
20 * authenticate to your site to establish identity. We will address this
21 * in a future release.
25 * - Implement a method for the administrator to delete all configuration data the plugin has created,
26 * e.g. the app_access_token
29 // Size of maximum post length increased
30 // see http://www.facebook.com/schrep/posts/203969696349811
31 // define('FACEBOOK_MAXPOSTLEN', 420);
32 define('FACEBOOK_MAXPOSTLEN', 63206);
33 define('FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL', 259200); // 3 days
34 define('FACEBOOK_DEFAULT_POLL_INTERVAL', 60); // given in minutes
35 define('FACEBOOK_MIN_POLL_INTERVAL', 5);
36 define('FACEBOOK_RTU_ERR_MAIL_AFTER_MINUTES', 180); // 3 hours
38 require_once('include/security.php');
40 function facebook_install() {
41 register_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
42 register_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
43 register_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
44 register_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
45 register_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
46 register_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
47 register_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
51 function facebook_uninstall() {
52 unregister_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
53 unregister_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
54 unregister_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
55 unregister_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
56 unregister_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
57 unregister_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
58 unregister_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
61 unregister_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook');
62 unregister_hook('plugin_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
66 /* declare the facebook_module function so that /facebook url requests will land here */
68 function facebook_module() {}
72 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
73 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
78 function facebook_init(&$a) {
80 if (x($_REQUEST, "realtime_cb") && x($_REQUEST, "realtime_cb")) {
81 logger("facebook_init: Facebook Real-Time callback called", LOGGER_DEBUG);
83 if (x($_REQUEST, "hub_verify_token")) {
84 // this is the verification callback while registering for real time updates
86 $verify_token = get_config('facebook', 'cb_verify_token');
87 if ($verify_token != $_REQUEST["hub_verify_token"]) {
88 logger('facebook_init: Wrong Facebook Callback Verifier - expected ' . $verify_token . ', got ' . $_REQUEST["hub_verify_token"]);
92 if (x($_REQUEST, "hub_challenge")) {
93 logger('facebook_init: Answering Challenge: ' . $_REQUEST["hub_challenge"], LOGGER_DATA);
94 echo $_REQUEST["hub_challenge"];
99 require_once('include/items.php');
101 // this is a status update
102 $content = file_get_contents("php://input");
103 if (is_numeric($content)) $content = file_get_contents("php://input");
104 $js = json_decode($content);
105 logger(print_r($js, true), LOGGER_DATA);
107 if (!isset($js->object) || $js->object != "user" || !isset($js->entry)) {
108 logger('facebook_init: Could not parse Real-Time Update data', LOGGER_DEBUG);
112 $affected_users = array("feed" => array(), "friends" => array());
114 foreach ($js->entry as $entry) {
115 $fbuser = $entry->uid;
116 foreach ($entry->changed_fields as $field) {
117 if (!isset($affected_users[$field])) {
118 logger('facebook_init: Unknown field "' . $field . '"');
121 if (in_array($fbuser, $affected_users[$field])) continue;
123 $r = q("SELECT `uid` FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'self_id' AND `v` = '%s' LIMIT 1", dbesc($fbuser));
128 $access_token = get_pconfig($uid,'facebook','access_token');
134 logger('facebook_init: FB-User ' . $fbuser . ' / feed', LOGGER_DEBUG);
136 if(! get_pconfig($uid,'facebook','no_wall')) {
137 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
138 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
140 $j = json_decode($s);
141 if (isset($j->data)) {
142 logger('facebook_init: wall: ' . print_r($j,true), LOGGER_DATA);
143 fb_consume_stream($uid,$j,($private_wall) ? false : true);
145 logger('facebook_init: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
152 logger('facebook_init: FB-User ' . $fbuser . ' / friends', LOGGER_DEBUG);
154 fb_get_friends($uid, false);
155 set_pconfig($uid,'facebook','friend_check',time());
158 logger('facebook_init: Unknown callback field for ' . $fbuser, LOGGER_NORMAL);
160 $affected_users[$field][] = $fbuser;
170 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
173 if(!(isset($r) && count($r)))
177 $auth_code = (x($_GET, 'code') ? $_GET['code'] : '');
178 $error = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
182 logger('facebook_init: Error: ' . $error);
184 if($auth_code && $uid) {
186 $appid = get_config('facebook','appid');
187 $appsecret = get_config('facebook', 'appsecret');
189 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
190 . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
191 . urlencode($a->get_baseurl() . '/facebook/' . $nick)
192 . '&code=' . $auth_code);
194 logger('facebook_init: returned access token: ' . $x, LOGGER_DATA);
196 if(strpos($x,'access_token=') !== false) {
197 $token = str_replace('access_token=', '', $x);
198 if(strpos($token,'&') !== false)
199 $token = substr($token,0,strpos($token,'&'));
200 set_pconfig($uid,'facebook','access_token',$token);
201 set_pconfig($uid,'facebook','post','1');
202 if(get_pconfig($uid,'facebook','no_linking') === false)
203 set_pconfig($uid,'facebook','no_linking',1);
205 fb_get_friends($uid, true);
206 fb_consume_all($uid);
218 function fb_get_self($uid) {
219 $access_token = get_pconfig($uid,'facebook','access_token');
222 $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
224 $j = json_decode($s);
225 set_pconfig($uid,'facebook','self_id',(string) $j->id);
231 * @param string $access_token
232 * @param array $persons
234 function fb_get_friends_sync_new($uid, $access_token, $persons) {
235 $persons_todo = array();
236 foreach ($persons as $person) {
237 $link = 'http://facebook.com/profile.php?id=' . $person->id;
239 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
244 if (count($r) == 0) {
245 logger('fb_get_friends: new contact found: ' . $link, LOGGER_DEBUG);
246 $persons_todo[] = $person;
249 if (count($persons_todo) > 0) fb_get_friends_sync_full($uid, $access_token, $persons_todo);
255 * @param object $contact
257 function fb_get_friends_sync_parsecontact($uid, $contact) {
258 $contact->link = 'http://facebook.com/profile.php?id=' . $contact->id;
260 // If its a page then set the first name from the username
261 if (!$contact->first_name and $contact->username)
262 $contact->first_name = $contact->username;
264 // check if we already have a contact
266 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
268 dbesc($contact->link)
273 // check that we have all the photos, this has been known to fail on occasion
275 if((! $r[0]['photo']) || (! $r[0]['thumb']) || (! $r[0]['micro'])) {
276 require_once("Photo.php");
278 $photos = import_profile_photo('https://graph.facebook.com/' . $contact->id . '/picture', $uid, $r[0]['id']);
280 q("UPDATE `contact` SET `photo` = '%s',
286 WHERE `id` = %d LIMIT 1
291 dbesc(datetime_convert()),
292 dbesc(datetime_convert()),
293 dbesc(datetime_convert()),
301 // create contact record
302 q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `addr`, `alias`, `notify`, `poll`,
303 `name`, `nick`, `photo`, `network`, `rel`, `priority`,
304 `writable`, `blocked`, `readonly`, `pending` )
305 VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
307 dbesc(datetime_convert()),
308 dbesc($contact->link),
309 dbesc(normalise_link($contact->link)),
313 dbesc('facebook ' . $contact->id),
314 dbesc($contact->name),
315 dbesc(($contact->nickname) ? $contact->nickname : strtolower($contact->first_name)),
316 dbesc('https://graph.facebook.com/' . $contact->id . '/picture'),
317 dbesc(NETWORK_FACEBOOK),
318 intval(CONTACT_IS_FRIEND),
324 $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
325 dbesc($contact->link),
333 $contact_id = $r[0]['id'];
335 $g = q("select def_gid from user where uid = %d limit 1",
338 if($g && intval($g[0]['def_gid'])) {
339 require_once('include/group.php');
340 group_add_member($uid,'',$contact_id,$g[0]['def_gid']);
343 require_once("Photo.php");
345 $photos = import_profile_photo($r[0]['photo'],$uid,$contact_id);
347 q("UPDATE `contact` SET `photo` = '%s',
353 WHERE `id` = %d LIMIT 1
358 dbesc(datetime_convert()),
359 dbesc(datetime_convert()),
360 dbesc(datetime_convert()),
367 * @param string $access_token
368 * @param array $persons
370 function fb_get_friends_sync_full($uid, $access_token, $persons) {
371 if (count($persons) == 0) return;
372 $nums = Ceil(count($persons) / 50);
373 for ($i = 0; $i < $nums; $i++) {
374 $batch_request = array();
375 for ($j = $i * 50; $j < ($i+1) * 50 && $j < count($persons); $j++) $batch_request[] = array('method'=>'GET', 'relative_url'=>$persons[$j]->id);
376 $s = post_url('https://graph.facebook.com/', array('access_token' => $access_token, 'batch' => json_encode($batch_request)));
378 $results = json_decode($s);
379 logger('fb_get_friends: info: ' . print_r($results,true), LOGGER_DATA);
380 foreach ($results as $contact) {
381 if ($contact->code != 200) logger('fb_get_friends: not found: ' . print_r($contact,true), LOGGER_DEBUG);
382 else fb_get_friends_sync_parsecontact($uid, json_decode($contact->body));
390 // if $fullsync is true, only new contacts are searched for
394 * @param bool $fullsync
396 function fb_get_friends($uid, $fullsync = true) {
398 $r = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
404 $access_token = get_pconfig($uid,'facebook','access_token');
406 $no_linking = get_pconfig($uid,'facebook','no_linking');
412 $s = fetch_url('https://graph.facebook.com/me/friends?access_token=' . $access_token);
414 logger('facebook: fb_get_friends: ' . $s, LOGGER_DATA);
415 $j = json_decode($s);
416 logger('facebook: fb_get_friends: json: ' . print_r($j,true), LOGGER_DATA);
420 $persons_todo = array();
421 foreach($j->data as $person) $persons_todo[] = $person;
424 fb_get_friends_sync_full($uid, $access_token, $persons_todo);
426 fb_get_friends_sync_new($uid, $access_token, $persons_todo);
430 // This is the POST method to the facebook settings page
431 // Content is posted to Facebook in the function facebook_post_hook()
436 function facebook_post(&$a) {
442 $fb_limited = get_config('facebook','restrict');
445 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
446 set_pconfig($uid,'facebook','post_by_default', $value);
448 $no_linking = get_pconfig($uid,'facebook','no_linking');
450 $no_wall = ((x($_POST,'facebook_no_wall')) ? intval($_POST['facebook_no_wall']) : 0);
451 set_pconfig($uid,'facebook','no_wall',$no_wall);
453 $private_wall = ((x($_POST,'facebook_private_wall')) ? intval($_POST['facebook_private_wall']) : 0);
454 set_pconfig($uid,'facebook','private_wall',$private_wall);
457 set_pconfig($uid,'facebook','blocked_apps',escape_tags(trim($_POST['blocked_apps'])));
459 $linkvalue = ((x($_POST,'facebook_linking')) ? intval($_POST['facebook_linking']) : 0);
463 set_pconfig($uid,'facebook','no_linking', 1);
466 set_pconfig($uid,'facebook','no_linking', (($linkvalue) ? 0 : 1));
468 // FB linkage was allowed but has just been turned off - remove all FB contacts and posts
470 if((! intval($no_linking)) && (! intval($linkvalue))) {
471 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' ",
473 dbesc(NETWORK_FACEBOOK)
476 require_once('include/Contact.php');
478 contact_remove($rr['id']);
481 elseif(intval($no_linking) && intval($linkvalue)) {
482 // FB linkage is now allowed - import stuff.
484 fb_get_friends($uid, true);
485 fb_consume_all($uid);
488 info( t('Settings updated.') . EOL);
494 // Facebook settings form
500 function facebook_content(&$a) {
503 notice( t('Permission denied.') . EOL);
507 if($a->argc > 1 && $a->argv[1] === 'remove') {
508 del_pconfig(local_user(),'facebook','post');
509 info( t('Facebook disabled') . EOL);
512 if($a->argc > 1 && $a->argv[1] === 'friends') {
513 fb_get_friends(local_user(), true);
514 info( t('Updating contacts') . EOL);
518 $fb_limited = get_config('facebook','restrict');
522 $fb_installed = false;
523 if (get_pconfig(local_user(),'facebook','post')) {
524 $access_token = get_pconfig(local_user(),'facebook','access_token');
526 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
528 $j = json_decode($s);
529 if (isset($j->data)) $fb_installed = true;
534 $appid = get_config('facebook','appid');
537 notice( t('Facebook API key is missing.') . EOL);
541 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
542 . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n";
544 $o .= '<h3>' . t('Facebook Connect') . '</h3>';
546 if(! $fb_installed) {
547 $o .= '<div id="facebook-enable-wrapper">';
549 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
550 . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>';
555 $o .= '<div id="facebook-disable-wrapper">';
557 $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>';
559 $o .= '<div id="facebook-enable-wrapper">';
561 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
562 . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Re-authenticate [This is necessary whenever your Facebook password is changed.]') . '</a>';
565 $o .= '<div id="facebook-post-default-form">';
566 $o .= '<form action="facebook" method="post" >';
567 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
568 $checked = (($post_by_default) ? ' checked="checked" ' : '');
569 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
571 $no_linking = get_pconfig(local_user(),'facebook','no_linking');
572 $checked = (($no_linking) ? '' : ' checked="checked" ');
575 $o .= EOL . '<strong>' . t('Facebook friend linking has been disabled on this site. The following settings will have no effect.') . '</strong>' . EOL;
576 $checked .= " disabled ";
579 $o .= EOL . '<strong>' . t('Facebook friend linking has been disabled on this site. If you disable it, you will be unable to re-enable it.') . '</strong>' . EOL;
582 $o .= '<input type="checkbox" name="facebook_linking" value="1"' . $checked . '/>' . ' ' . t('Link all your Facebook friends and conversations on this website') . EOL ;
584 $o .= '<p>' . t('Facebook conversations consist of your <em>profile wall</em> and your friend <em>stream</em>.');
585 $o .= ' ' . t('On this website, your Facebook friend stream is only visible to you.');
586 $o .= ' ' . t('The following settings determine the privacy of your Facebook profile wall on this website.') . '</p>';
588 $private_wall = get_pconfig(local_user(),'facebook','private_wall');
589 $checked = (($private_wall) ? ' checked="checked" ' : '');
590 $o .= '<input type="checkbox" name="facebook_private_wall" value="1"' . $checked . '/>' . ' ' . t('On this website your Facebook profile wall conversations will only be visible to you') . EOL ;
593 $no_wall = get_pconfig(local_user(),'facebook','no_wall');
594 $checked = (($no_wall) ? ' checked="checked" ' : '');
595 $o .= '<input type="checkbox" name="facebook_no_wall" value="1"' . $checked . '/>' . ' ' . t('Do not import your Facebook profile wall conversations') . EOL ;
597 $o .= '<p>' . t('If you choose to link conversations and leave both of these boxes unchecked, your Facebook profile wall will be merged with your profile wall on this website and your privacy settings on this website will be used to determine who may see the conversations.') . '</p>';
600 $blocked_apps = get_pconfig(local_user(),'facebook','blocked_apps');
602 $o .= '<div><label id="blocked-apps-label" for="blocked-apps">' . t('Comma separated applications to ignore') . ' </label></div>';
603 $o .= '<div><textarea id="blocked-apps" name="blocked_apps" >' . htmlspecialchars($blocked_apps) . '</textarea></div>';
605 $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
614 * @param null|object $b
617 function facebook_cron($a,$b) {
619 $last = get_config('facebook','last_poll');
621 $poll_interval = intval(get_config('facebook','poll_interval'));
623 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
626 $next = $last + ($poll_interval * 60);
631 logger('facebook_cron');
634 // Find the FB users on this site and randomize in case one of them
635 // uses an obscene amount of memory. It may kill this queue run
636 // but hopefully we'll get a few others through on each run.
638 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' ORDER BY RAND() ");
641 if(get_pconfig($rr['uid'],'facebook','no_linking'))
643 $ab = intval(get_config('system','account_abandon_days'));
645 $z = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY LIMIT 1",
653 // check for new friends once a day
654 $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check');
655 if($last_friend_check)
656 $next_friend_check = $last_friend_check + 86400;
658 $next_friend_check = 0;
659 if($next_friend_check <= time()) {
660 fb_get_friends($rr['uid'], true);
661 set_pconfig($rr['uid'],'facebook','friend_check',time());
663 fb_consume_all($rr['uid']);
667 if (get_config('facebook', 'realtime_active') == 1) {
668 if (!facebook_check_realtime_active()) {
670 logger('facebook_cron: Facebook is not sending Real-Time Updates any more, although it is supposed to. Trying to fix it...', LOGGER_NORMAL);
671 facebook_subscription_add_users();
673 if (facebook_check_realtime_active())
674 logger('facebook_cron: Successful', LOGGER_NORMAL);
676 logger('facebook_cron: Failed', LOGGER_NORMAL);
678 $first_err = get_config('facebook', 'realtime_first_err');
681 set_config('facebook', 'realtime_first_err', $first_err);
683 $first_err_ago = (time() - $first_err);
685 if(strlen($a->config['admin_email']) && !get_config('facebook', 'realtime_err_mailsent') && $first_err_ago > (FACEBOOK_RTU_ERR_MAIL_AFTER_MINUTES * 60)) {
686 mail($a->config['admin_email'], t('Problems with Facebook Real-Time Updates'),
687 "Hi!\n\nThere's a problem with the Facebook Real-Time Updates that cannot be solved automatically. Maybe a permission issue?\n\nPlease try to re-activate it on " . $a->config["system"]["url"] . "/admin/plugins/facebook\n\nThis e-mail will only be sent once.",
688 'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
689 . 'Content-type: text/plain; charset=UTF-8' . "\n"
690 . 'Content-transfer-encoding: 8bit'
693 set_config('facebook', 'realtime_err_mailsent', 1);
696 } else { // !facebook_check_realtime_active()
697 del_config('facebook', 'realtime_err_mailsent');
698 del_config('facebook', 'realtime_first_err');
702 set_config('facebook','last_poll', time());
709 * @param null|object $b
711 function facebook_plugin_settings(&$a,&$b) {
713 $b .= '<div class="settings-block">';
714 $b .= '<h3>' . t('Facebook') . '</h3>';
715 $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />';
723 * @param null|object $o
725 function facebook_plugin_admin(&$a, &$o){
728 $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
730 $o .= '<h4>' . t('Facebook API Key') . '</h4>';
732 $appid = get_config('facebook', 'appid' );
733 $appsecret = get_config('facebook', 'appsecret' );
734 $poll_interval = get_config('facebook', 'poll_interval' );
735 $sync_comments = get_config('facebook', 'sync_comments' );
736 if (!$poll_interval) $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
738 $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
739 $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
740 if ((count($ret1) > 0 && $ret1[0]['v'] != $appid) || (count($ret2) > 0 && $ret2[0]['v'] != $appsecret)) $o .= t('Error: it appears that you have specified the App-ID and -Secret in your .htconfig.php file. As long as they are specified there, they cannot be set using this form.<br><br>');
742 $working_connection = false;
743 if ($appid && $appsecret) {
744 $subs = facebook_subscriptions_get();
745 if ($subs === null) $o .= t('Error: the given API Key seems to be incorrect (the application access token could not be retrieved).') . '<br>';
746 elseif (is_array($subs)) {
747 $o .= t('The given API Key seems to work correctly.') . '<br>';
748 $working_connection = true;
749 } else $o .= t('The correctness of the API Key could not be detected. Somthing strange\'s going on.') . '<br>';
752 $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
753 $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
754 $o .= '<label for="fb_poll_interval">' . sprintf(t('Polling Interval in minutes (minimum %1$s minutes)'), FACEBOOK_MIN_POLL_INTERVAL) . '</label><input name="poll_interval" id="fb_poll_interval" type="number" min="' . FACEBOOK_MIN_POLL_INTERVAL . '" value="' . $poll_interval . '"><br style="clear: both;">';
755 $o .= '<label for="fb_sync_comments">' . t('Synchronize comments (no comments on Facebook are missed, at the cost of increased system load)') . '</label><input name="sync_comments" id="fb_sync_comments" type="checkbox" ' . ($sync_comments ? 'checked' : '') . '><br style="clear: both;">';
756 $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
758 if ($working_connection) {
759 $o .= '<h4>' . t('Real-Time Updates') . '</h4>';
761 $activated = facebook_check_realtime_active();
763 $o .= t('Real-Time Updates are activated.') . '<br><br>';
764 $o .= '<input type="submit" name="real_time_deactivate" value="' . t('Deactivate Real-Time Updates') . '">';
766 $o .= t('Real-Time Updates not activated.') . '<br><input type="submit" name="real_time_activate" value="' . t('Activate Real-Time Updates') . '">';
775 function facebook_plugin_admin_post(&$a){
776 check_form_security_token_redirectOnErr('/admin/plugins/facebook', 'fbsave');
778 if (x($_REQUEST,'fb_save_keys')) {
779 set_config('facebook', 'appid', $_REQUEST['appid']);
780 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
781 $poll_interval = IntVal($_REQUEST['poll_interval']);
782 if ($poll_interval >= FACEBOOK_MIN_POLL_INTERVAL) set_config('facebook', 'poll_interval', $poll_interval);
783 set_config('facebook', 'sync_comments', (x($_REQUEST, 'sync_comments') ? 1 : 0));
784 del_config('facebook', 'app_access_token');
785 info(t('The new values have been saved.'));
787 if (x($_REQUEST,'real_time_activate')) {
788 facebook_subscription_add_users();
790 if (x($_REQUEST,'real_time_deactivate')) {
791 facebook_subscription_del_users();
800 function facebook_jot_nets(&$a,&$b) {
804 $fb_post = get_pconfig(local_user(),'facebook','post');
805 if(intval($fb_post) == 1) {
806 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
807 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
808 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
809 . t('Post to Facebook') . '</div>';
819 function facebook_post_hook(&$a,&$b) {
822 if($b['deleted'] || ($b['created'] !== $b['edited']))
826 * Post to Facebook stream
829 require_once('include/group.php');
830 require_once('include/html2plain.php');
832 logger('Facebook post');
838 $allow_arr = array();
840 $toplevel = (($b['id'] == $b['parent']) ? true : false);
843 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
845 if((! $toplevel) && ($linking)) {
846 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
847 intval($b['parent']),
850 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
851 $reply = substr($r[0]['uri'],4);
852 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
853 $reply = substr($r[0]['extid'],4);
857 $u = q("SELECT * FROM user where uid = %d limit 1",
863 // only accept comments from the item owner. Other contacts are unknown to FB.
865 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
869 logger('facebook reply id=' . $reply);
872 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
874 if($b['private'] && $reply === false) {
875 $allow_people = expand_acl($b['allow_cid']);
876 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
877 $deny_people = expand_acl($b['deny_cid']);
878 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
880 $recipients = array_unique(array_merge($allow_people,$allow_groups));
881 $deny = array_unique(array_merge($deny_people,$deny_groups));
883 $allow_str = dbesc(implode(', ',$recipients));
885 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
888 $allow_arr[] = $rr['notify'];
891 $deny_str = dbesc(implode(', ',$deny));
893 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
896 $deny_arr[] = $rr['notify'];
899 if(count($deny_arr) && (! count($allow_arr))) {
901 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
902 // This might cause the post to be open to public on Facebook, but only to selected members
903 // on another network. Since this could potentially leak a post to somebody who was denied,
904 // we will skip posting it to Facebook with a slightly vague but relevant message that will
905 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
907 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
912 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
914 if((! count($allow_arr)) && (! count($deny_arr)))
918 if($b['verb'] == ACTIVITY_LIKE)
922 $appid = get_config('facebook', 'appid' );
923 $secret = get_config('facebook', 'appsecret' );
925 if($appid && $secret) {
927 logger('facebook: have appid+secret');
929 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
932 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
933 // or it's a private message with facebook participants
934 // or it's a reply or likes action to an existing facebook post
936 if($fb_token && ($toplevel || $b['private'] || $reply)) {
937 logger('facebook: able to post');
938 require_once('library/facebook.php');
939 require_once('include/bbcode.php');
943 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
945 // make links readable before we strip the code
947 // unless it's a dislike - just send the text as a comment
949 // if($b['verb'] == ACTIVITY_DISLIKE)
950 // $msg = trim(strip_tags(bbcode($msg)));
953 /*$search_str = $a->get_baseurl() . '/search';
955 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
957 // don't use hashtags for message link
959 if(strpos($matches[2],$search_str) === false) {
961 if(substr($matches[2],0,5) != '[img]')
962 $linkname = $matches[2];
966 // strip tag links to avoid link clutter, this really should be
967 // configurable because we're losing information
969 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
971 // provide the link separately for normal links
972 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
974 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
975 $image = $matches[1];
977 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
979 if((strpos($link,z_root()) !== false) && (! $image))
980 $image = $a->get_baseurl() . '/images/friendica-64.jpg';
982 $msg = trim(strip_tags(bbcode($msg)));*/
986 // Looking for the first image
988 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
989 $image = $matches[3];
992 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
993 $image = $matches[1];
995 // Checking for a bookmark element
997 if (strpos($body, "[bookmark") !== false) {
998 // splitting the text in two parts:
999 // before and after the bookmark
1000 $pos = strpos($body, "[bookmark");
1001 $body1 = substr($body, 0, $pos);
1002 $body2 = substr($body, $pos);
1004 // Removing the bookmark and all quotes after the bookmark
1005 // they are mostly only the content after the bookmark.
1006 $body2 = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'',$body2);
1007 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
1008 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
1010 $body = $body1.$body2;
1013 // At first convert the text to html
1014 $html = bbcode($body);
1016 // Then convert it to plain text
1017 $msg = trim($b['title']." \n\n".html2plain($html, 0, true));
1018 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
1020 // Removing multiple newlines
1021 while (strpos($msg, "\n\n\n") !== false)
1022 $msg = str_replace("\n\n\n", "\n\n", $msg);
1024 // add any attachments as text urls
1025 $arr = explode(',',$b['attach']);
1029 foreach($arr as $r) {
1031 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
1033 $msg .= "\n".$matches[1];
1040 // look for bookmark-bbcode and handle it with priority
1041 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
1042 $link = $matches[1];
1043 $linkname = $matches[2];
1046 // If there is no bookmark element then take the first link
1048 $links = collecturls($html);
1049 if (sizeof($links) > 0) {
1051 $link = current($links);
1055 // Remove trailing and leading spaces
1058 // Since facebook increased the maxpostlen massively this never should happen again :)
1059 if (strlen($msg) > FACEBOOK_MAXPOSTLEN) {
1060 require_once('library/slinky.php');
1062 $display_url = $b['plink'];
1064 $slinky = new Slinky( $display_url );
1065 // setup a cascade of shortening services
1066 // try to get a short link from these services
1067 // in the order ur1.ca, trim, id.gd, tinyurl
1068 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
1069 $shortlink = $slinky->short();
1070 // the new message will be shortened such that "... $shortlink"
1071 // will fit into the character limit
1072 $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4);
1073 $msg .= '... ' . $shortlink;
1076 // Fallback - if message is empty
1086 // If there is nothing to post then exit
1090 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
1093 $postvars = array('access_token' => $fb_token);
1097 'access_token' => $fb_token,
1101 $postvars['picture'] = $image;
1102 //$postvars['type'] = "photo";
1105 $postvars['link'] = $link;
1106 //$postvars['type'] = "link";
1108 if(isset($linkname))
1109 $postvars['name'] = $linkname;
1112 if(($b['private']) && ($toplevel)) {
1113 $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
1114 if(count($allow_arr))
1115 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
1116 if(count($deny_arr))
1117 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
1118 $postvars['privacy'] .= '}';
1123 $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
1124 } else if (($link != "") or ($image != "") or ($b['title'] == '') or (strlen($msg) < 500)) {
1125 $url = 'https://graph.facebook.com/me/feed';
1127 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' . $b['plink'] . '"}';
1129 // if its only a message and a subject and the message is larger than 500 characters then post it as note
1131 'access_token' => $fb_token,
1132 'message' => bbcode($b['body']),
1133 'subject' => $b['title'],
1135 $url = 'https://graph.facebook.com/me/notes';
1138 logger('facebook: post to ' . $url);
1139 logger('facebook: postvars: ' . print_r($postvars,true));
1141 // "test_mode" prevents anything from actually being posted.
1142 // Otherwise, let's do it.
1144 if(! get_config('facebook','test_mode')) {
1145 $x = post_url($url, $postvars);
1146 logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
1148 $retj = json_decode($x);
1150 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1151 dbesc('fb::' . $retj->id),
1157 $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
1158 require_once('include/queue_fn.php');
1159 add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
1160 notice( t('Facebook post failed. Queued for retry.') . EOL);
1163 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
1164 logger('Facebook session has expired due to changed password.', LOGGER_DEBUG);
1166 $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
1167 if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
1168 require_once('include/enotify.php');
1170 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
1173 'type' => NOTIFY_SYSTEM,
1174 'system_type' => 'facebook_connection_invalid',
1175 'language' => $r[0]['language'],
1176 'to_name' => $r[0]['username'],
1177 'to_email' => $r[0]['email'],
1178 'source_name' => t('Administrator'),
1179 'source_link' => $a->config["system"]["url"],
1180 'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
1183 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
1184 } else logger('Facebook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
1195 * @param object $data
1197 function facebook_enotify(&$app, &$data) {
1198 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
1199 $data['itemlink'] = '/facebook';
1200 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
1201 $data['subject'] = t('Facebook connection became invalid');
1202 $data['body'] = sprintf( t("Hi %1\$s,\n\nThe connection between your accounts on %2\$s and Facebook became invalid. This usually happens after you change your Facebook-password. To enable the connection again, you have to %3\$sre-authenticate the Facebook-connector%4\$s."), $data['params']['to_name'], "[url=" . $app->config["system"]["url"] . "]" . $app->config["sitename"] . "[/url]", "[url=" . $app->config["system"]["url"] . "/facebook]", "[/url]");
1210 function facebook_post_local(&$a,&$b) {
1212 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
1213 // where we will discover it during background delivery.
1215 // This can only be triggered by a local user posting to their own wall.
1217 if((local_user()) && (local_user() == $b['uid'])) {
1219 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
1220 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
1222 // if API is used, default to the chosen settings
1223 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default')))
1229 if(strlen($b['postopts']))
1230 $b['postopts'] .= ',';
1231 $b['postopts'] .= 'facebook';
1240 function fb_queue_hook(&$a,&$b) {
1242 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
1243 dbesc(NETWORK_FACEBOOK)
1248 require_once('include/queue_fn.php');
1250 foreach($qi as $x) {
1251 if($x['network'] !== NETWORK_FACEBOOK)
1254 logger('facebook_queue: run');
1256 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
1257 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
1265 $appid = get_config('facebook', 'appid' );
1266 $secret = get_config('facebook', 'appsecret' );
1268 if($appid && $secret) {
1269 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
1270 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
1272 if($fb_post && $fb_token) {
1273 logger('facebook_queue: able to post');
1274 require_once('library/facebook.php');
1276 $z = unserialize($x['content']);
1278 $j = post_url($z['url'],$z['post']);
1280 $retj = json_decode($j);
1282 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1283 dbesc('fb::' . $retj->id),
1286 logger('facebook_queue: success: ' . $j);
1287 remove_queue_item($x['id']);
1290 logger('facebook_queue: failed: ' . $j);
1291 update_queue_time($x['id']);
1299 * @param string $access_token
1303 function fb_get_timeline($access_token, &$since) {
1305 $entries = new stdClass();
1306 $entries->data = array();
1309 $url = 'https://graph.facebook.com/me/home?access_token='.$access_token;
1312 $url .= "&since=".$since;
1315 $s = fetch_url($url);
1316 $j = json_decode($s);
1317 $oldestdate = time();
1318 if (isset($j->data))
1319 foreach ($j->data as $entry) {
1320 $created = strtotime($entry->created_time);
1322 if ($newest < $created)
1325 if ($created >= $since)
1326 $entries->data[] = $entry;
1328 if ($created <= $oldestdate)
1329 $oldestdate = $created;
1334 $url = (isset($j->paging) && isset($j->paging->next) ? $j->paging->next : '');
1336 } while (($oldestdate > $since) and ($since != 0) and ($url != ''));
1338 if ($newest > $since)
1347 function fb_consume_all($uid) {
1349 require_once('include/items.php');
1351 $access_token = get_pconfig($uid,'facebook','access_token');
1355 if(! get_pconfig($uid,'facebook','no_wall')) {
1356 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
1357 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
1359 $j = json_decode($s);
1360 if (isset($j->data)) {
1361 logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA);
1362 fb_consume_stream($uid,$j,($private_wall) ? false : true);
1364 logger('fb_consume_stream: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1368 // Get the last date
1369 $lastdate = get_pconfig($uid,'facebook','lastdate');
1370 // fetch all items since the last date
1371 $j = fb_get_timeline($access_token, $lastdate);
1372 if (isset($j->data)) {
1373 logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA);
1374 fb_consume_stream($uid,$j,false);
1376 // Write back the last date
1377 set_pconfig($uid,'facebook','lastdate', $lastdate);
1379 logger('fb_consume_stream: feed: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1384 * @param string $link
1387 function fb_get_photo($uid,$link) {
1388 $access_token = get_pconfig($uid,'facebook','access_token');
1389 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1391 //return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1392 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1394 $photo_id = $match[1];
1397 $x = fetch_url('https://graph.facebook.com/' . $photo_id . '?access_token=' . $access_token);
1398 $j = json_decode($x);
1400 return "\n\n" . '[url=' . $link . '][img]' . $j->picture . '[/img][/url]';
1402 // return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1409 * @param array $user
1410 * @param array $self
1411 * @param string $fb_id
1413 * @param array $orig_post
1414 * @param object $cmnt
1416 function fb_consume_comment(&$a, &$user, &$self, $fb_id, $wall, &$orig_post, &$cmnt) {
1421 $top_item = $orig_post['id'];
1422 $uid = IntVal($user[0]['uid']);
1424 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1",
1426 dbesc('fb::' . $cmnt->id),
1427 dbesc('fb::' . $cmnt->id)
1432 $cmntdata = array();
1433 $cmntdata['parent'] = $top_item;
1434 $cmntdata['verb'] = ACTIVITY_POST;
1435 $cmntdata['gravity'] = 6;
1436 $cmntdata['uid'] = $uid;
1437 $cmntdata['wall'] = (($wall) ? 1 : 0);
1438 $cmntdata['uri'] = 'fb::' . $cmnt->id;
1439 $cmntdata['parent-uri'] = $orig_post['uri'];
1440 if($cmnt->from->id == $fb_id) {
1441 $cmntdata['contact-id'] = $self[0]['id'];
1444 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1",
1445 dbesc($cmnt->from->id),
1449 $cmntdata['contact-id'] = $r[0]['id'];
1450 if($r[0]['blocked'] || $r[0]['readonly'])
1454 if(! x($cmntdata,'contact-id'))
1455 $cmntdata['contact-id'] = $orig_post['contact-id'];
1457 $cmntdata['app'] = 'facebook';
1458 $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1459 $cmntdata['edited'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1460 $cmntdata['verb'] = ACTIVITY_POST;
1461 $cmntdata['author-name'] = $cmnt->from->name;
1462 $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id;
1463 $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture';
1464 $cmntdata['body'] = $cmnt->message;
1465 $item = item_store($cmntdata);
1467 $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
1468 dbesc($orig_post['uri']),
1472 if(count($myconv)) {
1473 $importer_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1475 foreach($myconv as $conv) {
1477 // now if we find a match, it means we're in this conversation
1479 if(! link_compare($conv['author-link'],$importer_url))
1482 require_once('include/enotify.php');
1484 $conv_parent = $conv['parent'];
1487 'type' => NOTIFY_COMMENT,
1488 'notify_flags' => $user[0]['notify-flags'],
1489 'language' => $user[0]['language'],
1490 'to_name' => $user[0]['username'],
1491 'to_email' => $user[0]['email'],
1492 'uid' => $user[0]['uid'],
1493 'item' => $cmntdata,
1494 'link' => $a->get_baseurl() . '/display/' . $user[0]['nickname'] . '/' . $item,
1495 'source_name' => $cmntdata['author-name'],
1496 'source_link' => $cmntdata['author-link'],
1497 'source_photo' => $cmntdata['author-avatar'],
1498 'verb' => ACTIVITY_POST,
1500 'parent' => $conv_parent,
1503 // only send one notification
1512 * @param array $user
1513 * @param array $self
1514 * @param string $fb_id
1516 * @param array $orig_post
1517 * @param object $likes
1519 function fb_consume_like(&$a, &$user, &$self, $fb_id, $wall, &$orig_post, &$likes) {
1521 $top_item = $orig_post['id'];
1522 $uid = IntVal($user[0]['uid']);
1527 // If we posted the like locally, it will be found with our url, not the FB url.
1529 $second_url = (($likes->id == $fb_id) ? $self[0]['url'] : 'http://facebook.com/profile.php?id=' . $likes->id);
1531 $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s'
1532 AND ( `author-link` = '%s' OR `author-link` = '%s' ) LIMIT 1",
1533 dbesc($orig_post['uri']),
1535 dbesc(ACTIVITY_LIKE),
1536 dbesc('http://facebook.com/profile.php?id=' . $likes->id),
1543 $likedata = array();
1544 $likedata['parent'] = $top_item;
1545 $likedata['verb'] = ACTIVITY_LIKE;
1546 $likedata['gravity'] = 3;
1547 $likedata['uid'] = $uid;
1548 $likedata['wall'] = (($wall) ? 1 : 0);
1549 $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid);
1550 $likedata['parent-uri'] = $orig_post['uri'];
1551 if($likes->id == $fb_id)
1552 $likedata['contact-id'] = $self[0]['id'];
1554 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1559 $likedata['contact-id'] = $r[0]['id'];
1561 if(! x($likedata,'contact-id'))
1562 $likedata['contact-id'] = $orig_post['contact-id'];
1564 $likedata['app'] = 'facebook';
1565 $likedata['verb'] = ACTIVITY_LIKE;
1566 $likedata['author-name'] = $likes->name;
1567 $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id;
1568 $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture';
1570 $author = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]';
1571 $objauthor = '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]';
1572 $post_type = t('status');
1573 $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]';
1574 $likedata['object-type'] = ACTIVITY_OBJ_NOTE;
1576 $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink);
1577 $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' .
1578 '<id>' . $orig_post['uri'] . '</id><link>' . xmlify('<link rel="alternate" type="text/html" href="' . xmlify($orig_post['plink']) . '" />') . '</link><title>' . $orig_post['title'] . '</title><content>' . $orig_post['body'] . '</content></object>';
1580 item_store($likedata);
1585 * @param array $user
1586 * @param object $entry
1587 * @param array $self
1588 * @param string $fb_id
1590 * @param array $orig_post
1592 function fb_consume_status(&$a, &$user, &$entry, &$self, $fb_id, $wall, &$orig_post) {
1593 $uid = IntVal($user[0]['uid']);
1594 $access_token = get_pconfig($uid, 'facebook', 'access_token');
1596 $s = fetch_url('https://graph.facebook.com/' . $entry->id . '?access_token=' . $access_token);
1598 $j = json_decode($s);
1599 if (isset($j->comments) && isset($j->comments->data))
1600 foreach ($j->comments->data as $cmnt)
1601 fb_consume_comment($a, $user, $self, $fb_id, $wall, $orig_post, $cmnt);
1603 if (isset($j->likes) && isset($j->likes->data) && isset($j->likes->count)) {
1604 if (count($j->likes->data) == $j->likes->count) {
1605 foreach ($j->likes->data as $likers) fb_consume_like($a, $user, $self, $fb_id, $wall, $orig_post, $likers);
1607 $t = fetch_url('https://graph.facebook.com/' . $entry->id . '/likes?access_token=' . $access_token);
1609 $k = json_decode($t);
1610 if (isset($k->data))
1611 foreach ($k->data as $likers)
1612 fb_consume_like($a, $user, $self, $fb_id, $wall, $orig_post, $likers);
1624 function fb_consume_stream($uid,$j,$wall = false) {
1628 $user = q("SELECT * FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
1634 // $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1636 $no_linking = get_pconfig($uid,'facebook','no_linking');
1640 $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
1644 $blocked_apps = get_pconfig($uid,'facebook','blocked_apps');
1645 $blocked_apps_arr = explode(',',$blocked_apps);
1647 $sync_comments = get_config('facebook', 'sync_comments');
1649 /** @var string $self_id */
1650 $self_id = get_pconfig($uid,'facebook','self_id');
1651 if(! count($j->data) || (! strlen($self_id)))
1656 foreach($j->data as $entry) {
1657 logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA);
1658 $datarray = array();
1660 $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1",
1661 dbesc('fb::' . $entry->id),
1662 dbesc('fb::' . $entry->id),
1667 $top_item = $r[0]['id'];
1674 $datarray['gravity'] = 0;
1675 $datarray['uid'] = $uid;
1676 $datarray['wall'] = (($wall) ? 1 : 0);
1677 $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id;
1678 $from = $entry->from;
1679 if($from->id == $self_id)
1680 $datarray['contact-id'] = $self[0]['id'];
1682 // Looking if user is known - if not he is added
1683 $access_token = get_pconfig($uid, 'facebook', 'access_token');
1684 fb_get_friends_sync_new($uid, $access_token, array($from));
1686 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1691 $datarray['contact-id'] = $r[0]['id'];
1694 // don't store post if we don't have a contact
1695 if(! x($datarray,'contact-id')) {
1696 logger('facebook: no contact '.$from->name.' '.$from->id.'. post ignored');
1700 $datarray['verb'] = ACTIVITY_POST;
1702 $datarray['owner-name'] = $self[0]['name'];
1703 $datarray['owner-link'] = $self[0]['url'];
1704 $datarray['owner-avatar'] = $self[0]['thumb'];
1706 if(isset($entry->application) && isset($entry->application->name) && strlen($entry->application->name))
1707 $datarray['app'] = strip_tags($entry->application->name);
1709 $datarray['app'] = 'facebook';
1711 $found_blocked = false;
1713 if(count($blocked_apps_arr)) {
1714 foreach($blocked_apps_arr as $bad_appl) {
1715 if(strlen(trim($bad_appl)) && (stristr($datarray['app'],trim($bad_appl)))) {
1716 $found_blocked = true;
1721 if($found_blocked) {
1722 logger('facebook: blocking application: ' . $datarray['app']);
1726 $datarray['author-name'] = $from->name;
1727 $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id;
1728 $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture';
1729 $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1);
1731 logger('facebook: post '.$entry->id.' from '.$from->name);
1733 $datarray['body'] = (isset($entry->message) ? escape_tags($entry->message) : '');
1735 if(isset($entry->name) and isset($entry->link))
1736 $datarray['body'] .= "\n\n[bookmark=".$entry->link."]".$entry->name."[/bookmark]";
1737 elseif (isset($entry->name))
1738 $datarray['body'] .= "\n\n[b]" . $entry->name."[/b]";
1740 if(isset($entry->caption)) {
1741 if(!isset($entry->name) and isset($entry->link))
1742 $datarray['body'] .= "\n\n[bookmark=".$entry->link."]".$entry->caption."[/bookmark]";
1744 $datarray['body'] .= "[i]" . $entry->caption."[/i]\n";
1747 if(!isset($entry->caption) and !isset($entry->name)) {
1748 if (isset($entry->link))
1749 $datarray['body'] .= "\n[url]".$entry->link."[/url]\n";
1751 $datarray['body'] .= "\n";
1755 if(isset($entry->description))
1756 $quote = $entry->description;
1758 if (isset($entry->properties))
1759 foreach ($entry->properties as $property)
1760 $quote .= "\n".$property->name.": [url=".$property->href."]".$property->text."[/url]";
1763 $datarray['body'] .= "\n[quote]".$quote."[/quote]";
1765 // Only import the picture when the message is no video
1766 // oembed display a picture of the video as well
1767 if ($entry->type != "video") {
1768 if(isset($entry->picture) && isset($entry->link)) {
1769 $datarray['body'] .= "\n" . '[url=' . $entry->link . '][img]'.$entry->picture.'[/img][/url]';
1772 if(isset($entry->picture))
1773 $datarray['body'] .= "\n" . '[img]' . $entry->picture . '[/img]';
1774 // if just a link, it may be a wall photo - check
1775 if(isset($entry->link))
1776 $datarray['body'] .= fb_get_photo($uid,$entry->link);
1780 if (($datarray['app'] == "Events") and isset($entry->actions))
1781 foreach ($entry->actions as $action)
1782 if ($action->name == "View")
1783 $datarray['body'] .= " [url=".$action->link."]".$entry->story."[/url]";
1785 // Just as a test - to see if these are the missing entries
1786 //if(trim($datarray['body']) == '')
1787 // $datarray['body'] = $entry->story;
1789 // Adding the "story" text to see if there are useful data in it (testing)
1790 //if (($datarray['app'] != "Events") and $entry->story)
1791 // $datarray['body'] .= "\n".$entry->story;
1793 if(trim($datarray['body']) == '') {
1794 logger('facebook: empty body '.$entry->id.' '.print_r($entry, true));
1798 $datarray['body'] .= "\n";
1800 if (isset($entry->icon))
1801 $datarray['body'] .= "[img]".$entry->icon."[/img] ";
1803 if (isset($entry->actions))
1804 foreach ($entry->actions as $action)
1805 if (($action->name != "Comment") and ($action->name != "Like"))
1806 $datarray['body'] .= "[url=".$action->link."]".$action->name."[/url] ";
1808 $datarray['body'] = trim($datarray['body']);
1810 //if(($datarray['body'] != '') and ($uid == 1))
1811 // $datarray['body'] .= "[noparse]".print_r($entry, true)."[/noparse]";
1813 if (isset($entry->place)) {
1814 if ($entry->place->name or $entry->place->location->street or
1815 $entry->place->location->city or $entry->place->location->Denmark) {
1816 $datarray['coord'] = '';
1817 if ($entry->place->name)
1818 $datarray['coord'] .= $entry->place->name;
1819 if ($entry->place->location->street)
1820 $datarray['coord'] .= $entry->place->location->street;
1821 if ($entry->place->location->city)
1822 $datarray['coord'] .= " ".$entry->place->location->city;
1823 if ($entry->place->location->country)
1824 $datarray['coord'] .= " ".$entry->place->location->country;
1825 } else if ($entry->place->location->latitude and $entry->place->location->longitude)
1826 $datarray['coord'] = substr($entry->place->location->latitude, 0, 8)
1827 .' '.substr($entry->place->location->longitude, 0, 8);
1829 $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time);
1830 $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time);
1832 // If the entry has a privacy policy, we cannot assume who can or cannot see it,
1833 // as the identities are from a foreign system. Mark it as private to the owner.
1835 if(isset($entry->privacy) && $entry->privacy->value !== 'EVERYONE') {
1836 $datarray['private'] = 1;
1837 $datarray['allow_cid'] = '<' . $self[0]['id'] . '>';
1840 $top_item = item_store($datarray);
1841 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1847 logger('fb: new top level item posted');
1851 /** @var array $orig_post */
1853 $likers_num = (isset($entry->likes) && isset($entry->likes->count) ? IntVal($entry->likes->count) : 0 );
1854 if(isset($entry->likes) && isset($entry->likes->data))
1855 $likers = $entry->likes->data;
1859 $comments_num = (isset($entry->comments) && isset($entry->comments->count) ? IntVal($entry->comments->count) : 0 );
1860 if(isset($entry->comments) && isset($entry->comments->data))
1861 $comments = $entry->comments->data;
1865 $needs_sync = false;
1867 if(is_array($likers)) {
1868 foreach($likers as $likes) fb_consume_like($a, $user, $self, $self_id, $wall, $orig_post, $likes);
1869 if ($sync_comments) {
1870 $r = q("SELECT COUNT(*) likes FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s' AND `parent-uri` != `uri`",
1871 dbesc($orig_post['uri']),
1873 dbesc(ACTIVITY_LIKE)
1875 if ($r[0]['likes'] < $likers_num) {
1876 logger('fb_consume_stream: missing likes found for ' . $orig_post['uri'] . ' (we have ' . $r[0]['likes'] . ' of ' . $likers_num . '). Synchronizing...', LOGGER_DEBUG);
1882 if(is_array($comments)) {
1883 foreach($comments as $cmnt) fb_consume_comment($a, $user, $self, $self_id, $wall, $orig_post, $cmnt);
1884 if ($sync_comments) {
1885 $r = q("SELECT COUNT(*) comments FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s' AND `parent-uri` != `uri`",
1886 dbesc($orig_post['uri']),
1890 if ($r[0]['comments'] < $comments_num) {
1891 logger('fb_consume_stream: missing comments found for ' . $orig_post['uri'] . ' (we have ' . $r[0]['comments'] . ' of ' . $comments_num . '). Synchronizing...', LOGGER_DEBUG);
1897 if ($needs_sync) fb_consume_status($a, $user, $entry, $self, $self_id, $wall, $orig_post);
1903 * @return bool|string
1905 function fb_get_app_access_token() {
1907 $acc_token = get_config('facebook','app_access_token');
1909 if ($acc_token !== false) return $acc_token;
1911 $appid = get_config('facebook','appid');
1912 $appsecret = get_config('facebook', 'appsecret');
1914 if ($appid === false || $appsecret === false) {
1915 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
1918 logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
1919 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
1921 if(strpos($x,'access_token=') !== false) {
1922 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
1924 $token = str_replace('access_token=', '', $x);
1925 if(strpos($token,'&') !== false)
1926 $token = substr($token,0,strpos($token,'&'));
1929 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
1932 set_config('facebook','app_access_token',$token);
1935 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
1940 function facebook_subscription_del_users() {
1942 $access_token = fb_get_app_access_token();
1944 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1945 facebook_delete_url($url);
1947 if (!facebook_check_realtime_active()) del_config('facebook', 'realtime_active');
1951 * @param bool $second_try
1953 function facebook_subscription_add_users($second_try = false) {
1955 $access_token = fb_get_app_access_token();
1957 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1959 list($usec, $sec) = explode(" ", microtime());
1960 $verify_token = sha1($usec . $sec . rand(0, 999999999));
1961 set_config('facebook', 'cb_verify_token', $verify_token);
1963 $cb = $a->get_baseurl() . '/facebook/?realtime_cb=1';
1965 $j = post_url($url,array(
1967 "fields" => "feed,friends",
1968 "callback_url" => $cb,
1969 "verify_token" => $verify_token,
1971 del_config('facebook', 'cb_verify_token');
1974 $x = json_decode($j);
1975 logger("Facebook reponse: " . $j, LOGGER_DATA);
1976 if (isset($x->error)) {
1977 logger('facebook_subscription_add_users: got an error: ' . $j);
1978 if ($x->error->type == "OAuthException" && $x->error->code == 190) {
1979 del_config('facebook', 'app_access_token');
1980 if ($second_try === false) facebook_subscription_add_users(true);
1983 logger('facebook_subscription_add_users: sucessful');
1984 if (facebook_check_realtime_active()) set_config('facebook', 'realtime_active', 1);
1990 * @return null|array
1992 function facebook_subscriptions_get() {
1994 $access_token = fb_get_app_access_token();
1995 if (!$access_token) return null;
1997 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1998 $j = fetch_url($url);
2001 $x = json_decode($j);
2002 if (isset($x->data)) $ret = $x->data;
2011 function facebook_check_realtime_active() {
2012 $ret = facebook_subscriptions_get();
2013 if (is_null($ret)) return false;
2014 if (is_array($ret)) foreach ($ret as $re) if (is_object($re) && $re->object == "user") return true;
2021 // DELETE-request to $url
2023 if(! function_exists('facebook_delete_url')) {
2025 * @param string $url
2026 * @param null|array $headers
2027 * @param int $redirects
2028 * @param int $timeout
2029 * @return bool|string
2031 function facebook_delete_url($url,$headers = null, &$redirects = 0, $timeout = 0) {
2033 $ch = curl_init($url);
2034 if(($redirects > 8) || (! $ch))
2037 curl_setopt($ch, CURLOPT_HEADER, true);
2038 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
2039 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
2040 curl_setopt($ch, CURLOPT_USERAGENT, "Friendica");
2042 if(intval($timeout)) {
2043 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
2046 $curl_time = intval(get_config('system','curl_timeout'));
2047 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
2050 if(defined('LIGHTTPD')) {
2051 if(!is_array($headers)) {
2052 $headers = array('Expect:');
2054 if(!in_array('Expect:', $headers)) {
2055 array_push($headers, 'Expect:');
2060 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
2062 $check_cert = get_config('system','verifyssl');
2063 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
2064 $prx = get_config('system','proxy');
2066 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
2067 curl_setopt($ch, CURLOPT_PROXY, $prx);
2068 $prxusr = get_config('system','proxyuser');
2070 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
2073 $a->set_curl_code(0);
2075 // don't let curl abort the entire application
2076 // if it throws any errors.
2078 $s = @curl_exec($ch);
2081 $curl_info = curl_getinfo($ch);
2082 $http_code = $curl_info['http_code'];
2086 // Pull out multiple headers, e.g. proxy and continuation headers
2087 // allow for HTTP/2.x without fixing code
2089 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
2090 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
2092 $base = substr($base,strlen($chunk));
2095 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
2097 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
2098 $url = trim(array_pop($matches));
2099 $url_parsed = @parse_url($url);
2100 if (isset($url_parsed)) {
2102 return facebook_delete_url($url,$headers,$redirects,$timeout);
2105 $a->set_curl_code($http_code);
2106 $body = substr($s,strlen($header));
2108 $a->set_curl_headers($header);