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 require_once("Photo.php");
337 $photos = import_profile_photo($r[0]['photo'],$uid,$contact_id);
339 q("UPDATE `contact` SET `photo` = '%s',
345 WHERE `id` = %d LIMIT 1
350 dbesc(datetime_convert()),
351 dbesc(datetime_convert()),
352 dbesc(datetime_convert()),
359 * @param string $access_token
360 * @param array $persons
362 function fb_get_friends_sync_full($uid, $access_token, $persons) {
363 if (count($persons) == 0) return;
364 $nums = Ceil(count($persons) / 50);
365 for ($i = 0; $i < $nums; $i++) {
366 $batch_request = array();
367 for ($j = $i * 50; $j < ($i+1) * 50 && $j < count($persons); $j++) $batch_request[] = array('method'=>'GET', 'relative_url'=>$persons[$j]->id);
368 $s = post_url('https://graph.facebook.com/', array('access_token' => $access_token, 'batch' => json_encode($batch_request)));
370 $results = json_decode($s);
371 logger('fb_get_friends: info: ' . print_r($results,true), LOGGER_DATA);
372 foreach ($results as $contact) {
373 if ($contact->code != 200) logger('fb_get_friends: not found: ' . print_r($contact,true), LOGGER_DEBUG);
374 else fb_get_friends_sync_parsecontact($uid, json_decode($contact->body));
382 // if $fullsync is true, only new contacts are searched for
386 * @param bool $fullsync
388 function fb_get_friends($uid, $fullsync = true) {
390 $r = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
396 $access_token = get_pconfig($uid,'facebook','access_token');
398 $no_linking = get_pconfig($uid,'facebook','no_linking');
404 $s = fetch_url('https://graph.facebook.com/me/friends?access_token=' . $access_token);
406 logger('facebook: fb_get_friends: ' . $s, LOGGER_DATA);
407 $j = json_decode($s);
408 logger('facebook: fb_get_friends: json: ' . print_r($j,true), LOGGER_DATA);
412 $persons_todo = array();
413 foreach($j->data as $person) $persons_todo[] = $person;
416 fb_get_friends_sync_full($uid, $access_token, $persons_todo);
418 fb_get_friends_sync_new($uid, $access_token, $persons_todo);
422 // This is the POST method to the facebook settings page
423 // Content is posted to Facebook in the function facebook_post_hook()
428 function facebook_post(&$a) {
434 $fb_limited = get_config('facebook','restrict');
437 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
438 set_pconfig($uid,'facebook','post_by_default', $value);
440 $no_linking = get_pconfig($uid,'facebook','no_linking');
442 $no_wall = ((x($_POST,'facebook_no_wall')) ? intval($_POST['facebook_no_wall']) : 0);
443 set_pconfig($uid,'facebook','no_wall',$no_wall);
445 $private_wall = ((x($_POST,'facebook_private_wall')) ? intval($_POST['facebook_private_wall']) : 0);
446 set_pconfig($uid,'facebook','private_wall',$private_wall);
449 set_pconfig($uid,'facebook','blocked_apps',escape_tags(trim($_POST['blocked_apps'])));
451 $linkvalue = ((x($_POST,'facebook_linking')) ? intval($_POST['facebook_linking']) : 0);
455 set_pconfig($uid,'facebook','no_linking', 1);
458 set_pconfig($uid,'facebook','no_linking', (($linkvalue) ? 0 : 1));
460 // FB linkage was allowed but has just been turned off - remove all FB contacts and posts
462 if((! intval($no_linking)) && (! intval($linkvalue))) {
463 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' ",
465 dbesc(NETWORK_FACEBOOK)
468 require_once('include/Contact.php');
470 contact_remove($rr['id']);
473 elseif(intval($no_linking) && intval($linkvalue)) {
474 // FB linkage is now allowed - import stuff.
476 fb_get_friends($uid, true);
477 fb_consume_all($uid);
480 info( t('Settings updated.') . EOL);
486 // Facebook settings form
492 function facebook_content(&$a) {
495 notice( t('Permission denied.') . EOL);
499 if($a->argc > 1 && $a->argv[1] === 'remove') {
500 del_pconfig(local_user(),'facebook','post');
501 info( t('Facebook disabled') . EOL);
504 if($a->argc > 1 && $a->argv[1] === 'friends') {
505 fb_get_friends(local_user(), true);
506 info( t('Updating contacts') . EOL);
510 $fb_limited = get_config('facebook','restrict');
514 $fb_installed = false;
515 if (get_pconfig(local_user(),'facebook','post')) {
516 $access_token = get_pconfig(local_user(),'facebook','access_token');
518 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
520 $j = json_decode($s);
521 if (isset($j->data)) $fb_installed = true;
526 $appid = get_config('facebook','appid');
529 notice( t('Facebook API key is missing.') . EOL);
533 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
534 . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n";
536 $o .= '<h3>' . t('Facebook Connect') . '</h3>';
538 if(! $fb_installed) {
539 $o .= '<div id="facebook-enable-wrapper">';
541 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
542 . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>';
547 $o .= '<div id="facebook-disable-wrapper">';
549 $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>';
551 $o .= '<div id="facebook-enable-wrapper">';
553 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
554 . $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>';
557 $o .= '<div id="facebook-post-default-form">';
558 $o .= '<form action="facebook" method="post" >';
559 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
560 $checked = (($post_by_default) ? ' checked="checked" ' : '');
561 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
563 $no_linking = get_pconfig(local_user(),'facebook','no_linking');
564 $checked = (($no_linking) ? '' : ' checked="checked" ');
567 $o .= EOL . '<strong>' . t('Facebook friend linking has been disabled on this site. The following settings will have no effect.') . '</strong>' . EOL;
568 $checked .= " disabled ";
571 $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;
574 $o .= '<input type="checkbox" name="facebook_linking" value="1"' . $checked . '/>' . ' ' . t('Link all your Facebook friends and conversations on this website') . EOL ;
576 $o .= '<p>' . t('Facebook conversations consist of your <em>profile wall</em> and your friend <em>stream</em>.');
577 $o .= ' ' . t('On this website, your Facebook friend stream is only visible to you.');
578 $o .= ' ' . t('The following settings determine the privacy of your Facebook profile wall on this website.') . '</p>';
580 $private_wall = get_pconfig(local_user(),'facebook','private_wall');
581 $checked = (($private_wall) ? ' checked="checked" ' : '');
582 $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 ;
585 $no_wall = get_pconfig(local_user(),'facebook','no_wall');
586 $checked = (($no_wall) ? ' checked="checked" ' : '');
587 $o .= '<input type="checkbox" name="facebook_no_wall" value="1"' . $checked . '/>' . ' ' . t('Do not import your Facebook profile wall conversations') . EOL ;
589 $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>';
592 $blocked_apps = get_pconfig(local_user(),'facebook','blocked_apps');
594 $o .= '<div><label id="blocked-apps-label" for="blocked-apps">' . t('Comma separated applications to ignore') . ' </label></div>';
595 $o .= '<div><textarea id="blocked-apps" name="blocked_apps" >' . htmlspecialchars($blocked_apps) . '</textarea></div>';
597 $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
606 * @param null|object $b
609 function facebook_cron($a,$b) {
611 $last = get_config('facebook','last_poll');
613 $poll_interval = intval(get_config('facebook','poll_interval'));
615 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
618 $next = $last + ($poll_interval * 60);
623 logger('facebook_cron');
626 // Find the FB users on this site and randomize in case one of them
627 // uses an obscene amount of memory. It may kill this queue run
628 // but hopefully we'll get a few others through on each run.
630 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' ORDER BY RAND() ");
633 if(get_pconfig($rr['uid'],'facebook','no_linking'))
635 $ab = intval(get_config('system','account_abandon_days'));
637 $z = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY LIMIT 1",
645 // check for new friends once a day
646 $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check');
647 if($last_friend_check)
648 $next_friend_check = $last_friend_check + 86400;
650 $next_friend_check = 0;
651 if($next_friend_check <= time()) {
652 fb_get_friends($rr['uid'], true);
653 set_pconfig($rr['uid'],'facebook','friend_check',time());
655 fb_consume_all($rr['uid']);
659 if (get_config('facebook', 'realtime_active') == 1) {
660 if (!facebook_check_realtime_active()) {
662 logger('facebook_cron: Facebook is not sending Real-Time Updates any more, although it is supposed to. Trying to fix it...', LOGGER_NORMAL);
663 facebook_subscription_add_users();
665 if (facebook_check_realtime_active())
666 logger('facebook_cron: Successful', LOGGER_NORMAL);
668 logger('facebook_cron: Failed', LOGGER_NORMAL);
670 $first_err = get_config('facebook', 'realtime_first_err');
673 set_config('facebook', 'realtime_first_err', $first_err);
675 $first_err_ago = (time() - $first_err);
677 if(strlen($a->config['admin_email']) && !get_config('facebook', 'realtime_err_mailsent') && $first_err_ago > (FACEBOOK_RTU_ERR_MAIL_AFTER_MINUTES * 60)) {
678 mail($a->config['admin_email'], t('Problems with Facebook Real-Time Updates'),
679 "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.",
680 'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
681 . 'Content-type: text/plain; charset=UTF-8' . "\n"
682 . 'Content-transfer-encoding: 8bit'
685 set_config('facebook', 'realtime_err_mailsent', 1);
688 } else { // !facebook_check_realtime_active()
689 del_config('facebook', 'realtime_err_mailsent');
690 del_config('facebook', 'realtime_first_err');
694 set_config('facebook','last_poll', time());
701 * @param null|object $b
703 function facebook_plugin_settings(&$a,&$b) {
705 $b .= '<div class="settings-block">';
706 $b .= '<h3>' . t('Facebook') . '</h3>';
707 $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />';
715 * @param null|object $o
717 function facebook_plugin_admin(&$a, &$o){
720 $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
722 $o .= '<h4>' . t('Facebook API Key') . '</h4>';
724 $appid = get_config('facebook', 'appid' );
725 $appsecret = get_config('facebook', 'appsecret' );
726 $poll_interval = get_config('facebook', 'poll_interval' );
727 $sync_comments = get_config('facebook', 'sync_comments' );
728 if (!$poll_interval) $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
730 $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
731 $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
732 if ((count($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>');
734 $working_connection = false;
735 if ($appid && $appsecret) {
736 $subs = facebook_subscriptions_get();
737 if ($subs === null) $o .= t('Error: the given API Key seems to be incorrect (the application access token could not be retrieved).') . '<br>';
738 elseif (is_array($subs)) {
739 $o .= t('The given API Key seems to work correctly.') . '<br>';
740 $working_connection = true;
741 } else $o .= t('The correctness of the API Key could not be detected. Somthing strange\'s going on.') . '<br>';
744 $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
745 $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
746 $o .= '<label for="fb_poll_interval">' . sprintf(t('Polling Interval in minutes (minimum %1$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;">';
747 $o .= '<label for="fb_sync_comments">' . t('Synchronize comments (no comments on Facebook are missed, at the cost of increased system load)') . '</label><input name="sync_comments" id="fb_sync_comments" type="checkbox" ' . ($sync_comments ? 'checked' : '') . '><br style="clear: both;">';
748 $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
750 if ($working_connection) {
751 $o .= '<h4>' . t('Real-Time Updates') . '</h4>';
753 $activated = facebook_check_realtime_active();
755 $o .= t('Real-Time Updates are activated.') . '<br><br>';
756 $o .= '<input type="submit" name="real_time_deactivate" value="' . t('Deactivate Real-Time Updates') . '">';
758 $o .= t('Real-Time Updates not activated.') . '<br><input type="submit" name="real_time_activate" value="' . t('Activate Real-Time Updates') . '">';
767 function facebook_plugin_admin_post(&$a){
768 check_form_security_token_redirectOnErr('/admin/plugins/facebook', 'fbsave');
770 if (x($_REQUEST,'fb_save_keys')) {
771 set_config('facebook', 'appid', $_REQUEST['appid']);
772 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
773 $poll_interval = IntVal($_REQUEST['poll_interval']);
774 if ($poll_interval >= FACEBOOK_MIN_POLL_INTERVAL) set_config('facebook', 'poll_interval', $poll_interval);
775 set_config('facebook', 'sync_comments', (x($_REQUEST, 'sync_comments') ? 1 : 0));
776 del_config('facebook', 'app_access_token');
777 info(t('The new values have been saved.'));
779 if (x($_REQUEST,'real_time_activate')) {
780 facebook_subscription_add_users();
782 if (x($_REQUEST,'real_time_deactivate')) {
783 facebook_subscription_del_users();
792 function facebook_jot_nets(&$a,&$b) {
796 $fb_post = get_pconfig(local_user(),'facebook','post');
797 if(intval($fb_post) == 1) {
798 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
799 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
800 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
801 . t('Post to Facebook') . '</div>';
811 function facebook_post_hook(&$a,&$b) {
814 if($b['deleted'] || ($b['created'] !== $b['edited']))
818 * Post to Facebook stream
821 require_once('include/group.php');
822 require_once('include/html2plain.php');
824 logger('Facebook post');
830 $allow_arr = array();
832 $toplevel = (($b['id'] == $b['parent']) ? true : false);
835 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
837 if((! $toplevel) && ($linking)) {
838 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
839 intval($b['parent']),
842 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
843 $reply = substr($r[0]['uri'],4);
844 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
845 $reply = substr($r[0]['extid'],4);
849 $u = q("SELECT * FROM user where uid = %d limit 1",
855 // only accept comments from the item owner. Other contacts are unknown to FB.
857 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
861 logger('facebook reply id=' . $reply);
864 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
866 if($b['private'] && $reply === false) {
867 $allow_people = expand_acl($b['allow_cid']);
868 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
869 $deny_people = expand_acl($b['deny_cid']);
870 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
872 $recipients = array_unique(array_merge($allow_people,$allow_groups));
873 $deny = array_unique(array_merge($deny_people,$deny_groups));
875 $allow_str = dbesc(implode(', ',$recipients));
877 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
880 $allow_arr[] = $rr['notify'];
883 $deny_str = dbesc(implode(', ',$deny));
885 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
888 $deny_arr[] = $rr['notify'];
891 if(count($deny_arr) && (! count($allow_arr))) {
893 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
894 // This might cause the post to be open to public on Facebook, but only to selected members
895 // on another network. Since this could potentially leak a post to somebody who was denied,
896 // we will skip posting it to Facebook with a slightly vague but relevant message that will
897 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
899 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
904 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
906 if((! count($allow_arr)) && (! count($deny_arr)))
910 if($b['verb'] == ACTIVITY_LIKE)
914 $appid = get_config('facebook', 'appid' );
915 $secret = get_config('facebook', 'appsecret' );
917 if($appid && $secret) {
919 logger('facebook: have appid+secret');
921 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
924 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
925 // or it's a private message with facebook participants
926 // or it's a reply or likes action to an existing facebook post
928 if($fb_token && ($toplevel || $b['private'] || $reply)) {
929 logger('facebook: able to post');
930 require_once('library/facebook.php');
931 require_once('include/bbcode.php');
935 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
937 // make links readable before we strip the code
939 // unless it's a dislike - just send the text as a comment
941 // if($b['verb'] == ACTIVITY_DISLIKE)
942 // $msg = trim(strip_tags(bbcode($msg)));
945 /*$search_str = $a->get_baseurl() . '/search';
947 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
949 // don't use hashtags for message link
951 if(strpos($matches[2],$search_str) === false) {
953 if(substr($matches[2],0,5) != '[img]')
954 $linkname = $matches[2];
958 // strip tag links to avoid link clutter, this really should be
959 // configurable because we're losing information
961 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
963 // provide the link separately for normal links
964 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
966 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
967 $image = $matches[1];
969 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
971 if((strpos($link,z_root()) !== false) && (! $image))
972 $image = $a->get_baseurl() . '/images/friendica-64.jpg';
974 $msg = trim(strip_tags(bbcode($msg)));*/
978 // Looking for the first image
980 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
981 $image = $matches[3];
984 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
985 $image = $matches[1];
987 // Checking for a bookmark element
989 if (strpos($body, "[bookmark") !== false) {
990 // splitting the text in two parts:
991 // before and after the bookmark
992 $pos = strpos($body, "[bookmark");
993 $body1 = substr($body, 0, $pos);
994 $body2 = substr($body, $pos);
996 // Removing the bookmark and all quotes after the bookmark
997 // they are mostly only the content after the bookmark.
998 $body2 = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'',$body2);
999 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
1000 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
1002 $body = $body1.$body2;
1005 // At first convert the text to html
1006 $html = bbcode($body);
1008 // Then convert it to plain text
1009 $msg = trim($b['title']." \n\n".html2plain($html, 0, true));
1010 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
1012 // Removing multiple newlines
1013 while (strpos($msg, "\n\n\n") !== false)
1014 $msg = str_replace("\n\n\n", "\n\n", $msg);
1016 // add any attachments as text urls
1017 $arr = explode(',',$b['attach']);
1021 foreach($arr as $r) {
1023 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
1025 $msg .= "\n".$matches[1];
1032 // look for bookmark-bbcode and handle it with priority
1033 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
1034 $link = $matches[1];
1035 $linkname = $matches[2];
1038 // If there is no bookmark element then take the first link
1040 $links = collecturls($html);
1041 if (sizeof($links) > 0) {
1043 $link = current($links);
1047 // Remove trailing and leading spaces
1050 // Since facebook increased the maxpostlen massively this never should happen again :)
1051 if (strlen($msg) > FACEBOOK_MAXPOSTLEN) {
1052 require_once('library/slinky.php');
1054 $display_url = $b['plink'];
1056 $slinky = new Slinky( $display_url );
1057 // setup a cascade of shortening services
1058 // try to get a short link from these services
1059 // in the order ur1.ca, trim, id.gd, tinyurl
1060 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
1061 $shortlink = $slinky->short();
1062 // the new message will be shortened such that "... $shortlink"
1063 // will fit into the character limit
1064 $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4);
1065 $msg .= '... ' . $shortlink;
1068 // Fallback - if message is empty
1078 // If there is nothing to post then exit
1082 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
1085 $postvars = array('access_token' => $fb_token);
1089 'access_token' => $fb_token,
1093 $postvars['picture'] = $image;
1094 //$postvars['type'] = "photo";
1097 $postvars['link'] = $link;
1098 //$postvars['type'] = "link";
1100 if(isset($linkname))
1101 $postvars['name'] = $linkname;
1104 if(($b['private']) && ($toplevel)) {
1105 $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
1106 if(count($allow_arr))
1107 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
1108 if(count($deny_arr))
1109 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
1110 $postvars['privacy'] .= '}';
1115 $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
1116 } else if (($link != "") or ($image != "") or ($b['title'] == '') or (strlen($msg) < 500)) {
1117 $url = 'https://graph.facebook.com/me/feed';
1119 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' . $b['plink'] . '"}';
1121 // if its only a message and a subject and the message is larger than 500 characters then post it as note
1123 'access_token' => $fb_token,
1124 'message' => bbcode($b['body']),
1125 'subject' => $b['title'],
1127 $url = 'https://graph.facebook.com/me/notes';
1130 logger('facebook: post to ' . $url);
1131 logger('facebook: postvars: ' . print_r($postvars,true));
1133 // "test_mode" prevents anything from actually being posted.
1134 // Otherwise, let's do it.
1136 if(! get_config('facebook','test_mode')) {
1137 $x = post_url($url, $postvars);
1138 logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
1140 $retj = json_decode($x);
1142 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1143 dbesc('fb::' . $retj->id),
1149 $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
1150 require_once('include/queue_fn.php');
1151 add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
1152 notice( t('Facebook post failed. Queued for retry.') . EOL);
1155 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
1156 logger('Facebook session has expired due to changed password.', LOGGER_DEBUG);
1158 $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
1159 if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
1160 require_once('include/enotify.php');
1162 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
1165 'type' => NOTIFY_SYSTEM,
1166 'system_type' => 'facebook_connection_invalid',
1167 'language' => $r[0]['language'],
1168 'to_name' => $r[0]['username'],
1169 'to_email' => $r[0]['email'],
1170 'source_name' => t('Administrator'),
1171 'source_link' => $a->config["system"]["url"],
1172 'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
1175 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
1176 } else logger('Facebook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
1187 * @param object $data
1189 function facebook_enotify(&$app, &$data) {
1190 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
1191 $data['itemlink'] = '/facebook';
1192 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
1193 $data['subject'] = t('Facebook connection became invalid');
1194 $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=" . $app->config["system"]["url"] . "/facebook]", "[/url]");
1202 function facebook_post_local(&$a,&$b) {
1204 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
1205 // where we will discover it during background delivery.
1207 // This can only be triggered by a local user posting to their own wall.
1209 if((local_user()) && (local_user() == $b['uid'])) {
1211 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
1212 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
1214 // if API is used, default to the chosen settings
1215 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default')))
1221 if(strlen($b['postopts']))
1222 $b['postopts'] .= ',';
1223 $b['postopts'] .= 'facebook';
1232 function fb_queue_hook(&$a,&$b) {
1234 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
1235 dbesc(NETWORK_FACEBOOK)
1240 require_once('include/queue_fn.php');
1242 foreach($qi as $x) {
1243 if($x['network'] !== NETWORK_FACEBOOK)
1246 logger('facebook_queue: run');
1248 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
1249 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
1257 $appid = get_config('facebook', 'appid' );
1258 $secret = get_config('facebook', 'appsecret' );
1260 if($appid && $secret) {
1261 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
1262 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
1264 if($fb_post && $fb_token) {
1265 logger('facebook_queue: able to post');
1266 require_once('library/facebook.php');
1268 $z = unserialize($x['content']);
1270 $j = post_url($z['url'],$z['post']);
1272 $retj = json_decode($j);
1274 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1275 dbesc('fb::' . $retj->id),
1278 logger('facebook_queue: success: ' . $j);
1279 remove_queue_item($x['id']);
1282 logger('facebook_queue: failed: ' . $j);
1283 update_queue_time($x['id']);
1291 * @param string $access_token
1295 function fb_get_timeline($access_token, &$since) {
1297 $entries = new stdClass();
1298 $entries->data = array();
1301 $url = 'https://graph.facebook.com/me/home?access_token='.$access_token;
1304 $url .= "&since=".$since;
1307 $s = fetch_url($url);
1308 $j = json_decode($s);
1309 $oldestdate = time();
1310 if (isset($j->data))
1311 foreach ($j->data as $entry) {
1312 $created = strtotime($entry->created_time);
1314 if ($newest < $created)
1317 if ($created >= $since)
1318 $entries->data[] = $entry;
1320 if ($created <= $oldestdate)
1321 $oldestdate = $created;
1326 $url = (isset($j->paging) && isset($j->paging->next) ? $j->paging->next : '');
1328 } while (($oldestdate > $since) and ($since != 0) and ($url != ''));
1330 if ($newest > $since)
1339 function fb_consume_all($uid) {
1341 require_once('include/items.php');
1343 $access_token = get_pconfig($uid,'facebook','access_token');
1347 if(! get_pconfig($uid,'facebook','no_wall')) {
1348 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
1349 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
1351 $j = json_decode($s);
1352 if (isset($j->data)) {
1353 logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA);
1354 fb_consume_stream($uid,$j,($private_wall) ? false : true);
1356 logger('fb_consume_stream: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1360 // Get the last date
1361 $lastdate = get_pconfig($uid,'facebook','lastdate');
1362 // fetch all items since the last date
1363 $j = fb_get_timeline($access_token, $lastdate);
1364 if (isset($j->data)) {
1365 logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA);
1366 fb_consume_stream($uid,$j,false);
1368 // Write back the last date
1369 set_pconfig($uid,'facebook','lastdate', $lastdate);
1371 logger('fb_consume_stream: feed: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1376 * @param string $link
1379 function fb_get_photo($uid,$link) {
1380 $access_token = get_pconfig($uid,'facebook','access_token');
1381 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1383 //return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1384 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1386 $photo_id = $match[1];
1389 $x = fetch_url('https://graph.facebook.com/' . $photo_id . '?access_token=' . $access_token);
1390 $j = json_decode($x);
1392 return "\n\n" . '[url=' . $link . '][img]' . $j->picture . '[/img][/url]';
1394 // return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1401 * @param array $user
1402 * @param array $self
1403 * @param string $fb_id
1405 * @param array $orig_post
1406 * @param object $cmnt
1408 function fb_consume_comment(&$a, &$user, &$self, $fb_id, $wall, &$orig_post, &$cmnt) {
1413 $top_item = $orig_post['id'];
1414 $uid = IntVal($user[0]['uid']);
1416 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1",
1418 dbesc('fb::' . $cmnt->id),
1419 dbesc('fb::' . $cmnt->id)
1424 $cmntdata = array();
1425 $cmntdata['parent'] = $top_item;
1426 $cmntdata['verb'] = ACTIVITY_POST;
1427 $cmntdata['gravity'] = 6;
1428 $cmntdata['uid'] = $uid;
1429 $cmntdata['wall'] = (($wall) ? 1 : 0);
1430 $cmntdata['uri'] = 'fb::' . $cmnt->id;
1431 $cmntdata['parent-uri'] = $orig_post['uri'];
1432 if($cmnt->from->id == $fb_id) {
1433 $cmntdata['contact-id'] = $self[0]['id'];
1436 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1",
1437 dbesc($cmnt->from->id),
1441 $cmntdata['contact-id'] = $r[0]['id'];
1442 if($r[0]['blocked'] || $r[0]['readonly'])
1446 if(! x($cmntdata,'contact-id'))
1447 $cmntdata['contact-id'] = $orig_post['contact-id'];
1449 $cmntdata['app'] = 'facebook';
1450 $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1451 $cmntdata['edited'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1452 $cmntdata['verb'] = ACTIVITY_POST;
1453 $cmntdata['author-name'] = $cmnt->from->name;
1454 $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id;
1455 $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture';
1456 $cmntdata['body'] = $cmnt->message;
1457 $item = item_store($cmntdata);
1459 $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
1460 dbesc($orig_post['uri']),
1464 if(count($myconv)) {
1465 $importer_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1467 foreach($myconv as $conv) {
1469 // now if we find a match, it means we're in this conversation
1471 if(! link_compare($conv['author-link'],$importer_url))
1474 require_once('include/enotify.php');
1476 $conv_parent = $conv['parent'];
1479 'type' => NOTIFY_COMMENT,
1480 'notify_flags' => $user[0]['notify-flags'],
1481 'language' => $user[0]['language'],
1482 'to_name' => $user[0]['username'],
1483 'to_email' => $user[0]['email'],
1484 'uid' => $user[0]['uid'],
1485 'item' => $cmntdata,
1486 'link' => $a->get_baseurl() . '/display/' . $user[0]['nickname'] . '/' . $item,
1487 'source_name' => $cmntdata['author-name'],
1488 'source_link' => $cmntdata['author-link'],
1489 'source_photo' => $cmntdata['author-avatar'],
1490 'verb' => ACTIVITY_POST,
1492 'parent' => $conv_parent,
1495 // only send one notification
1504 * @param array $user
1505 * @param array $self
1506 * @param string $fb_id
1508 * @param array $orig_post
1509 * @param object $likes
1511 function fb_consume_like(&$a, &$user, &$self, $fb_id, $wall, &$orig_post, &$likes) {
1513 $top_item = $orig_post['id'];
1514 $uid = IntVal($user[0]['uid']);
1519 // If we posted the like locally, it will be found with our url, not the FB url.
1521 $second_url = (($likes->id == $fb_id) ? $self[0]['url'] : 'http://facebook.com/profile.php?id=' . $likes->id);
1523 $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s'
1524 AND ( `author-link` = '%s' OR `author-link` = '%s' ) LIMIT 1",
1525 dbesc($orig_post['uri']),
1527 dbesc(ACTIVITY_LIKE),
1528 dbesc('http://facebook.com/profile.php?id=' . $likes->id),
1535 $likedata = array();
1536 $likedata['parent'] = $top_item;
1537 $likedata['verb'] = ACTIVITY_LIKE;
1538 $likedata['gravity'] = 3;
1539 $likedata['uid'] = $uid;
1540 $likedata['wall'] = (($wall) ? 1 : 0);
1541 $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid);
1542 $likedata['parent-uri'] = $orig_post['uri'];
1543 if($likes->id == $fb_id)
1544 $likedata['contact-id'] = $self[0]['id'];
1546 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1551 $likedata['contact-id'] = $r[0]['id'];
1553 if(! x($likedata,'contact-id'))
1554 $likedata['contact-id'] = $orig_post['contact-id'];
1556 $likedata['app'] = 'facebook';
1557 $likedata['verb'] = ACTIVITY_LIKE;
1558 $likedata['author-name'] = $likes->name;
1559 $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id;
1560 $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture';
1562 $author = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]';
1563 $objauthor = '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]';
1564 $post_type = t('status');
1565 $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]';
1566 $likedata['object-type'] = ACTIVITY_OBJ_NOTE;
1568 $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink);
1569 $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' .
1570 '<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>' . $orig_post['body'] . '</content></object>';
1572 item_store($likedata);
1577 * @param array $user
1578 * @param object $entry
1579 * @param array $self
1580 * @param string $fb_id
1582 * @param array $orig_post
1584 function fb_consume_status(&$a, &$user, &$entry, &$self, $fb_id, $wall, &$orig_post) {
1585 $uid = IntVal($user[0]['uid']);
1586 $access_token = get_pconfig($uid, 'facebook', 'access_token');
1588 $s = fetch_url('https://graph.facebook.com/' . $entry->id . '?access_token=' . $access_token);
1590 $j = json_decode($s);
1591 if (isset($j->comments) && isset($j->comments->data))
1592 foreach ($j->comments->data as $cmnt)
1593 fb_consume_comment($a, $user, $self, $fb_id, $wall, $orig_post, $cmnt);
1595 if (isset($j->likes) && isset($j->likes->data) && isset($j->likes->count)) {
1596 if (count($j->likes->data) == $j->likes->count) {
1597 foreach ($j->likes->data as $likers) fb_consume_like($a, $user, $self, $fb_id, $wall, $orig_post, $likers);
1599 $t = fetch_url('https://graph.facebook.com/' . $entry->id . '/likes?access_token=' . $access_token);
1601 $k = json_decode($t);
1602 if (isset($k->data))
1603 foreach ($k->data as $likers)
1604 fb_consume_like($a, $user, $self, $fb_id, $wall, $orig_post, $likers);
1616 function fb_consume_stream($uid,$j,$wall = false) {
1620 $user = q("SELECT * FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
1626 // $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1628 $no_linking = get_pconfig($uid,'facebook','no_linking');
1632 $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
1636 $blocked_apps = get_pconfig($uid,'facebook','blocked_apps');
1637 $blocked_apps_arr = explode(',',$blocked_apps);
1639 $sync_comments = get_config('facebook', 'sync_comments');
1641 /** @var string $self_id */
1642 $self_id = get_pconfig($uid,'facebook','self_id');
1643 if(! count($j->data) || (! strlen($self_id)))
1648 foreach($j->data as $entry) {
1649 logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA);
1650 $datarray = array();
1652 $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1",
1653 dbesc('fb::' . $entry->id),
1654 dbesc('fb::' . $entry->id),
1659 $top_item = $r[0]['id'];
1666 $datarray['gravity'] = 0;
1667 $datarray['uid'] = $uid;
1668 $datarray['wall'] = (($wall) ? 1 : 0);
1669 $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id;
1670 $from = $entry->from;
1671 if($from->id == $self_id)
1672 $datarray['contact-id'] = $self[0]['id'];
1674 // Looking if user is known - if not he is added
1675 $access_token = get_pconfig($uid, 'facebook', 'access_token');
1676 fb_get_friends_sync_new($uid, $access_token, array($from));
1678 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1683 $datarray['contact-id'] = $r[0]['id'];
1686 // don't store post if we don't have a contact
1687 if(! x($datarray,'contact-id')) {
1688 logger('facebook: no contact '.$from->name.' '.$from->id.'. post ignored');
1692 $datarray['verb'] = ACTIVITY_POST;
1694 $datarray['owner-name'] = $self[0]['name'];
1695 $datarray['owner-link'] = $self[0]['url'];
1696 $datarray['owner-avatar'] = $self[0]['thumb'];
1698 if(isset($entry->application) && isset($entry->application->name) && strlen($entry->application->name))
1699 $datarray['app'] = strip_tags($entry->application->name);
1701 $datarray['app'] = 'facebook';
1703 $found_blocked = false;
1705 if(count($blocked_apps_arr)) {
1706 foreach($blocked_apps_arr as $bad_appl) {
1707 if(strlen(trim($bad_appl)) && (stristr($datarray['app'],trim($bad_appl)))) {
1708 $found_blocked = true;
1713 if($found_blocked) {
1714 logger('facebook: blocking application: ' . $datarray['app']);
1718 $datarray['author-name'] = $from->name;
1719 $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id;
1720 $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture';
1721 $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1);
1723 logger('facebook: post '.$entry->id.' from '.$from->name);
1725 $datarray['body'] = (isset($entry->message) ? escape_tags($entry->message) : '');
1727 if(isset($entry->name) and isset($entry->link))
1728 $datarray['body'] .= "\n\n[bookmark=".$entry->link."]".$entry->name."[/bookmark]";
1729 elseif (isset($entry->name))
1730 $datarray['body'] .= "\n\n[b]" . $entry->name."[/b]";
1732 if(isset($entry->caption)) {
1733 if(!isset($entry->name) and isset($entry->link))
1734 $datarray['body'] .= "\n\n[bookmark=".$entry->link."]".$entry->caption."[/bookmark]";
1736 $datarray['body'] .= "[i]" . $entry->caption."[/i]\n";
1739 if(!isset($entry->caption) and !isset($entry->name)) {
1740 if (isset($entry->link))
1741 $datarray['body'] .= "\n[url]".$entry->link."[/url]\n";
1743 $datarray['body'] .= "\n";
1747 if(isset($entry->description))
1748 $quote = $entry->description;
1750 if (isset($entry->properties))
1751 foreach ($entry->properties as $property)
1752 $quote .= "\n".$property->name.": [url=".$property->href."]".$property->text."[/url]";
1755 $datarray['body'] .= "\n[quote]".$quote."[/quote]";
1757 // Only import the picture when the message is no video
1758 // oembed display a picture of the video as well
1759 if ($entry->type != "video") {
1760 if(isset($entry->picture) && isset($entry->link)) {
1761 $datarray['body'] .= "\n" . '[url=' . $entry->link . '][img]'.$entry->picture.'[/img][/url]';
1764 if(isset($entry->picture))
1765 $datarray['body'] .= "\n" . '[img]' . $entry->picture . '[/img]';
1766 // if just a link, it may be a wall photo - check
1767 if(isset($entry->link))
1768 $datarray['body'] .= fb_get_photo($uid,$entry->link);
1772 if (($datarray['app'] == "Events") and isset($entry->actions))
1773 foreach ($entry->actions as $action)
1774 if ($action->name == "View")
1775 $datarray['body'] .= " [url=".$action->link."]".$entry->story."[/url]";
1777 // Just as a test - to see if these are the missing entries
1778 //if(trim($datarray['body']) == '')
1779 // $datarray['body'] = $entry->story;
1781 // Adding the "story" text to see if there are useful data in it (testing)
1782 //if (($datarray['app'] != "Events") and $entry->story)
1783 // $datarray['body'] .= "\n".$entry->story;
1785 if(trim($datarray['body']) == '') {
1786 logger('facebook: empty body '.$entry->id.' '.print_r($entry, true));
1790 $datarray['body'] .= "\n";
1792 if (isset($entry->icon))
1793 $datarray['body'] .= "[img]".$entry->icon."[/img] ";
1795 if (isset($entry->actions))
1796 foreach ($entry->actions as $action)
1797 if (($action->name != "Comment") and ($action->name != "Like"))
1798 $datarray['body'] .= "[url=".$action->link."]".$action->name."[/url] ";
1800 $datarray['body'] = trim($datarray['body']);
1802 //if(($datarray['body'] != '') and ($uid == 1))
1803 // $datarray['body'] .= "[noparse]".print_r($entry, true)."[/noparse]";
1805 if (isset($entry->place)) {
1806 if ($entry->place->name or $entry->place->location->street or
1807 $entry->place->location->city or $entry->place->location->Denmark) {
1808 $datarray['coord'] = '';
1809 if ($entry->place->name)
1810 $datarray['coord'] .= $entry->place->name;
1811 if ($entry->place->location->street)
1812 $datarray['coord'] .= $entry->place->location->street;
1813 if ($entry->place->location->city)
1814 $datarray['coord'] .= " ".$entry->place->location->city;
1815 if ($entry->place->location->country)
1816 $datarray['coord'] .= " ".$entry->place->location->country;
1817 } else if ($entry->place->location->latitude and $entry->place->location->longitude)
1818 $datarray['coord'] = substr($entry->place->location->latitude, 0, 8)
1819 .' '.substr($entry->place->location->longitude, 0, 8);
1821 $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time);
1822 $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time);
1824 // If the entry has a privacy policy, we cannot assume who can or cannot see it,
1825 // as the identities are from a foreign system. Mark it as private to the owner.
1827 if(isset($entry->privacy) && $entry->privacy->value !== 'EVERYONE') {
1828 $datarray['private'] = 1;
1829 $datarray['allow_cid'] = '<' . $self[0]['id'] . '>';
1832 $top_item = item_store($datarray);
1833 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1839 logger('fb: new top level item posted');
1843 /** @var array $orig_post */
1845 $likers_num = (isset($entry->likes) && isset($entry->likes->count) ? IntVal($entry->likes->count) : 0 );
1846 if(isset($entry->likes) && isset($entry->likes->data))
1847 $likers = $entry->likes->data;
1851 $comments_num = (isset($entry->comments) && isset($entry->comments->count) ? IntVal($entry->comments->count) : 0 );
1852 if(isset($entry->comments) && isset($entry->comments->data))
1853 $comments = $entry->comments->data;
1857 $needs_sync = false;
1859 if(is_array($likers)) {
1860 foreach($likers as $likes) fb_consume_like($a, $user, $self, $self_id, $wall, $orig_post, $likes);
1861 if ($sync_comments) {
1862 $r = q("SELECT COUNT(*) likes FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s' AND `parent-uri` != `uri`",
1863 dbesc($orig_post['uri']),
1865 dbesc(ACTIVITY_LIKE)
1867 if ($r[0]['likes'] < $likers_num) {
1868 logger('fb_consume_stream: missing likes found for ' . $orig_post['uri'] . ' (we have ' . $r[0]['likes'] . ' of ' . $likers_num . '). Synchronizing...', LOGGER_DEBUG);
1874 if(is_array($comments)) {
1875 foreach($comments as $cmnt) fb_consume_comment($a, $user, $self, $self_id, $wall, $orig_post, $cmnt);
1876 if ($sync_comments) {
1877 $r = q("SELECT COUNT(*) comments FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s' AND `parent-uri` != `uri`",
1878 dbesc($orig_post['uri']),
1882 if ($r[0]['comments'] < $comments_num) {
1883 logger('fb_consume_stream: missing comments found for ' . $orig_post['uri'] . ' (we have ' . $r[0]['comments'] . ' of ' . $comments_num . '). Synchronizing...', LOGGER_DEBUG);
1889 if ($needs_sync) fb_consume_status($a, $user, $entry, $self, $self_id, $wall, $orig_post);
1895 * @return bool|string
1897 function fb_get_app_access_token() {
1899 $acc_token = get_config('facebook','app_access_token');
1901 if ($acc_token !== false) return $acc_token;
1903 $appid = get_config('facebook','appid');
1904 $appsecret = get_config('facebook', 'appsecret');
1906 if ($appid === false || $appsecret === false) {
1907 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
1910 logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
1911 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
1913 if(strpos($x,'access_token=') !== false) {
1914 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
1916 $token = str_replace('access_token=', '', $x);
1917 if(strpos($token,'&') !== false)
1918 $token = substr($token,0,strpos($token,'&'));
1921 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
1924 set_config('facebook','app_access_token',$token);
1927 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
1932 function facebook_subscription_del_users() {
1934 $access_token = fb_get_app_access_token();
1936 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1937 facebook_delete_url($url);
1939 if (!facebook_check_realtime_active()) del_config('facebook', 'realtime_active');
1943 * @param bool $second_try
1945 function facebook_subscription_add_users($second_try = false) {
1947 $access_token = fb_get_app_access_token();
1949 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1951 list($usec, $sec) = explode(" ", microtime());
1952 $verify_token = sha1($usec . $sec . rand(0, 999999999));
1953 set_config('facebook', 'cb_verify_token', $verify_token);
1955 $cb = $a->get_baseurl() . '/facebook/?realtime_cb=1';
1957 $j = post_url($url,array(
1959 "fields" => "feed,friends",
1960 "callback_url" => $cb,
1961 "verify_token" => $verify_token,
1963 del_config('facebook', 'cb_verify_token');
1966 $x = json_decode($j);
1967 logger("Facebook reponse: " . $j, LOGGER_DATA);
1968 if (isset($x->error)) {
1969 logger('facebook_subscription_add_users: got an error: ' . $j);
1970 if ($x->error->type == "OAuthException" && $x->error->code == 190) {
1971 del_config('facebook', 'app_access_token');
1972 if ($second_try === false) facebook_subscription_add_users(true);
1975 logger('facebook_subscription_add_users: sucessful');
1976 if (facebook_check_realtime_active()) set_config('facebook', 'realtime_active', 1);
1982 * @return null|array
1984 function facebook_subscriptions_get() {
1986 $access_token = fb_get_app_access_token();
1987 if (!$access_token) return null;
1989 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1990 $j = fetch_url($url);
1993 $x = json_decode($j);
1994 if (isset($x->data)) $ret = $x->data;
2003 function facebook_check_realtime_active() {
2004 $ret = facebook_subscriptions_get();
2005 if (is_null($ret)) return false;
2006 if (is_array($ret)) foreach ($ret as $re) if (is_object($re) && $re->object == "user") return true;
2013 // DELETE-request to $url
2015 if(! function_exists('facebook_delete_url')) {
2017 * @param string $url
2018 * @param null|array $headers
2019 * @param int $redirects
2020 * @param int $timeout
2021 * @return bool|string
2023 function facebook_delete_url($url,$headers = null, &$redirects = 0, $timeout = 0) {
2025 $ch = curl_init($url);
2026 if(($redirects > 8) || (! $ch))
2029 curl_setopt($ch, CURLOPT_HEADER, true);
2030 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
2031 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
2032 curl_setopt($ch, CURLOPT_USERAGENT, "Friendica");
2034 if(intval($timeout)) {
2035 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
2038 $curl_time = intval(get_config('system','curl_timeout'));
2039 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
2042 if(defined('LIGHTTPD')) {
2043 if(!is_array($headers)) {
2044 $headers = array('Expect:');
2046 if(!in_array('Expect:', $headers)) {
2047 array_push($headers, 'Expect:');
2052 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
2054 $check_cert = get_config('system','verifyssl');
2055 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
2056 $prx = get_config('system','proxy');
2058 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
2059 curl_setopt($ch, CURLOPT_PROXY, $prx);
2060 $prxusr = get_config('system','proxyuser');
2062 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
2065 $a->set_curl_code(0);
2067 // don't let curl abort the entire application
2068 // if it throws any errors.
2070 $s = @curl_exec($ch);
2073 $curl_info = curl_getinfo($ch);
2074 $http_code = $curl_info['http_code'];
2078 // Pull out multiple headers, e.g. proxy and continuation headers
2079 // allow for HTTP/2.x without fixing code
2081 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
2082 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
2084 $base = substr($base,strlen($chunk));
2087 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
2089 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
2090 $url = trim(array_pop($matches));
2091 $url_parsed = @parse_url($url);
2092 if (isset($url_parsed)) {
2094 return facebook_delete_url($url,$headers,$redirects,$timeout);
2097 $a->set_curl_code($http_code);
2098 $body = substr($s,strlen($header));
2100 $a->set_curl_headers($header);