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);
37 require_once('include/security.php');
39 function facebook_install() {
40 register_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
41 register_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
42 register_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
43 register_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
44 register_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
45 register_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
46 register_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
50 function facebook_uninstall() {
51 unregister_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
52 unregister_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
53 unregister_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
54 unregister_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
55 unregister_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
56 unregister_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
57 unregister_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
60 unregister_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook');
61 unregister_hook('plugin_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
65 /* declare the facebook_module function so that /facebook url requests will land here */
67 function facebook_module() {}
71 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
72 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
77 function facebook_init(&$a) {
79 if (x($_REQUEST, "realtime_cb") && x($_REQUEST, "realtime_cb")) {
80 logger("facebook_init: Facebook Real-Time callback called", LOGGER_DEBUG);
82 if (x($_REQUEST, "hub_verify_token")) {
83 // this is the verification callback while registering for real time updates
85 $verify_token = get_config('facebook', 'cb_verify_token');
86 if ($verify_token != $_REQUEST["hub_verify_token"]) {
87 logger('facebook_init: Wrong Facebook Callback Verifier - expected ' . $verify_token . ', got ' . $_REQUEST["hub_verify_token"]);
91 if (x($_REQUEST, "hub_challenge")) {
92 logger('facebook_init: Answering Challenge: ' . $_REQUEST["hub_challenge"], LOGGER_DATA);
93 echo $_REQUEST["hub_challenge"];
98 require_once('include/items.php');
100 // this is a status update
101 $content = file_get_contents("php://input");
102 if (is_numeric($content)) $content = file_get_contents("php://input");
103 $js = json_decode($content);
104 logger(print_r($js, true), LOGGER_DATA);
106 if (!isset($js->object) || $js->object != "user" || !isset($js->entry)) {
107 logger('facebook_init: Could not parse Real-Time Update data', LOGGER_DEBUG);
111 $affected_users = array("feed" => array(), "friends" => array());
113 foreach ($js->entry as $entry) {
114 $fbuser = $entry->uid;
115 foreach ($entry->changed_fields as $field) {
116 if (!isset($affected_users[$field])) {
117 logger('facebook_init: Unknown field "' . $field . '"');
120 if (in_array($fbuser, $affected_users[$field])) continue;
122 $r = q("SELECT `uid` FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'self_id' AND `v` = '%s' LIMIT 1", dbesc($fbuser));
127 $access_token = get_pconfig($uid,'facebook','access_token');
133 logger('facebook_init: FB-User ' . $fbuser . ' / feed', LOGGER_DEBUG);
135 if(! get_pconfig($uid,'facebook','no_wall')) {
136 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
137 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
139 $j = json_decode($s);
140 if (isset($j->data)) {
141 logger('facebook_init: wall: ' . print_r($j,true), LOGGER_DATA);
142 fb_consume_stream($uid,$j,($private_wall) ? false : true);
144 logger('facebook_init: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
151 logger('facebook_init: FB-User ' . $fbuser . ' / friends', LOGGER_DEBUG);
153 fb_get_friends($uid, false);
154 set_pconfig($uid,'facebook','friend_check',time());
157 logger('facebook_init: Unknown callback field for ' . $fbuser, LOGGER_NORMAL);
159 $affected_users[$field][] = $fbuser;
169 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
172 if(!(isset($r) && count($r)))
176 $auth_code = (x($_GET, 'code') ? $_GET['code'] : '');
177 $error = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
181 logger('facebook_init: Error: ' . $error);
183 if($auth_code && $uid) {
185 $appid = get_config('facebook','appid');
186 $appsecret = get_config('facebook', 'appsecret');
188 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
189 . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
190 . urlencode($a->get_baseurl() . '/facebook/' . $nick)
191 . '&code=' . $auth_code);
193 logger('facebook_init: returned access token: ' . $x, LOGGER_DATA);
195 if(strpos($x,'access_token=') !== false) {
196 $token = str_replace('access_token=', '', $x);
197 if(strpos($token,'&') !== false)
198 $token = substr($token,0,strpos($token,'&'));
199 set_pconfig($uid,'facebook','access_token',$token);
200 set_pconfig($uid,'facebook','post','1');
201 if(get_pconfig($uid,'facebook','no_linking') === false)
202 set_pconfig($uid,'facebook','no_linking',1);
204 fb_get_friends($uid, true);
205 fb_consume_all($uid);
217 function fb_get_self($uid) {
218 $access_token = get_pconfig($uid,'facebook','access_token');
221 $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
223 $j = json_decode($s);
224 set_pconfig($uid,'facebook','self_id',(string) $j->id);
230 * @param string $access_token
231 * @param array $persons
233 function fb_get_friends_sync_new($uid, $access_token, $persons) {
234 $persons_todo = array();
235 foreach ($persons as $person) {
236 $link = 'http://facebook.com/profile.php?id=' . $person->id;
238 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
243 if (count($r) == 0) {
244 logger('fb_get_friends: new contact found: ' . $link, LOGGER_DEBUG);
245 $persons_todo[] = $person;
248 if (count($persons_todo) > 0) fb_get_friends_sync_full($uid, $access_token, $persons_todo);
254 * @param object $contact
256 function fb_get_friends_sync_parsecontact($uid, $contact) {
257 $contact->link = 'http://facebook.com/profile.php?id=' . $contact->id;
259 // If its a page then set the first name from the username
260 if (!$contact->first_name and $contact->username)
261 $contact->first_name = $contact->username;
263 // check if we already have a contact
265 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
267 dbesc($contact->link)
272 // check that we have all the photos, this has been known to fail on occasion
274 if((! $r[0]['photo']) || (! $r[0]['thumb']) || (! $r[0]['micro'])) {
275 require_once("Photo.php");
277 $photos = import_profile_photo('https://graph.facebook.com/' . $contact->id . '/picture', $uid, $r[0]['id']);
279 $r = q("UPDATE `contact` SET `photo` = '%s',
285 WHERE `id` = %d LIMIT 1
290 dbesc(datetime_convert()),
291 dbesc(datetime_convert()),
292 dbesc(datetime_convert()),
300 // create contact record
301 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `addr`, `alias`, `notify`, `poll`,
302 `name`, `nick`, `photo`, `network`, `rel`, `priority`,
303 `writable`, `blocked`, `readonly`, `pending` )
304 VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
306 dbesc(datetime_convert()),
307 dbesc($contact->link),
308 dbesc(normalise_link($contact->link)),
312 dbesc('facebook ' . $contact->id),
313 dbesc($contact->name),
314 dbesc(($contact->nickname) ? $contact->nickname : strtolower($contact->first_name)),
315 dbesc('https://graph.facebook.com/' . $contact->id . '/picture'),
316 dbesc(NETWORK_FACEBOOK),
317 intval(CONTACT_IS_FRIEND),
323 $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
324 dbesc($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 $r = 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) {
433 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
434 set_pconfig($uid,'facebook','post_by_default', $value);
436 $no_linking = get_pconfig($uid,'facebook','no_linking');
438 $no_wall = ((x($_POST,'facebook_no_wall')) ? intval($_POST['facebook_no_wall']) : 0);
439 set_pconfig($uid,'facebook','no_wall',$no_wall);
441 $private_wall = ((x($_POST,'facebook_private_wall')) ? intval($_POST['facebook_private_wall']) : 0);
442 set_pconfig($uid,'facebook','private_wall',$private_wall);
445 set_pconfig($uid,'facebook','blocked_apps',escape_tags(trim($_POST['blocked_apps'])));
447 $linkvalue = ((x($_POST,'facebook_linking')) ? intval($_POST['facebook_linking']) : 0);
448 set_pconfig($uid,'facebook','no_linking', (($linkvalue) ? 0 : 1));
450 // FB linkage was allowed but has just been turned off - remove all FB contacts and posts
452 if((! intval($no_linking)) && (! intval($linkvalue))) {
453 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' ",
455 dbesc(NETWORK_FACEBOOK)
458 require_once('include/Contact.php');
460 contact_remove($rr['id']);
463 elseif(intval($no_linking) && intval($linkvalue)) {
464 // FB linkage is now allowed - import stuff.
466 fb_get_friends($uid, true);
467 fb_consume_all($uid);
470 info( t('Settings updated.') . EOL);
476 // Facebook settings form
482 function facebook_content(&$a) {
485 notice( t('Permission denied.') . EOL);
489 if($a->argc > 1 && $a->argv[1] === 'remove') {
490 del_pconfig(local_user(),'facebook','post');
491 info( t('Facebook disabled') . EOL);
494 if($a->argc > 1 && $a->argv[1] === 'friends') {
495 fb_get_friends(local_user(), true);
496 info( t('Updating contacts') . EOL);
501 $fb_installed = false;
502 if (get_pconfig(local_user(),'facebook','post')) {
503 $access_token = get_pconfig(local_user(),'facebook','access_token');
505 $private_wall = intval(get_pconfig(local_user(),'facebook','private_wall'));
506 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
508 $j = json_decode($s);
509 if (isset($j->data)) $fb_installed = true;
514 $appid = get_config('facebook','appid');
517 notice( t('Facebook API key is missing.') . EOL);
521 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
522 . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n";
524 $o .= '<h3>' . t('Facebook Connect') . '</h3>';
526 if(! $fb_installed) {
527 $o .= '<div id="facebook-enable-wrapper">';
529 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
530 . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>';
535 $o .= '<div id="facebook-disable-wrapper">';
537 $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>';
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('Re-authenticate [This is necessary whenever your Facebook password is changed.]') . '</a>';
545 $o .= '<div id="facebook-post-default-form">';
546 $o .= '<form action="facebook" method="post" >';
547 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
548 $checked = (($post_by_default) ? ' checked="checked" ' : '');
549 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
551 $no_linking = get_pconfig(local_user(),'facebook','no_linking');
552 $checked = (($no_linking) ? '' : ' checked="checked" ');
553 $o .= '<input type="checkbox" name="facebook_linking" value="1"' . $checked . '/>' . ' ' . t('Link all your Facebook friends and conversations on this website') . EOL ;
555 $o .= '<p>' . t('Facebook conversations consist of your <em>profile wall</em> and your friend <em>stream</em>.');
556 $o .= ' ' . t('On this website, your Facebook friend stream is only visible to you.');
557 $o .= ' ' . t('The following settings determine the privacy of your Facebook profile wall on this website.') . '</p>';
559 $private_wall = get_pconfig(local_user(),'facebook','private_wall');
560 $checked = (($private_wall) ? ' checked="checked" ' : '');
561 $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 ;
564 $no_wall = get_pconfig(local_user(),'facebook','no_wall');
565 $checked = (($no_wall) ? ' checked="checked" ' : '');
566 $o .= '<input type="checkbox" name="facebook_no_wall" value="1"' . $checked . '/>' . ' ' . t('Do not import your Facebook profile wall conversations') . EOL ;
568 $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>';
571 $blocked_apps = get_pconfig(local_user(),'facebook','blocked_apps');
573 $o .= '<div><label id="blocked-apps-label" for="blocked-apps">' . t('Comma separated applications to ignore') . ' </label></div>';
574 $o .= '<div><textarea id="blocked-apps" name="blocked_apps" >' . htmlspecialchars($blocked_apps) . '</textarea></div>';
576 $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
585 * @param null|object $b
588 function facebook_cron($a,$b) {
590 $last = get_config('facebook','last_poll');
592 $poll_interval = intval(get_config('facebook','poll_interval'));
594 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
597 $next = $last + $poll_interval;
602 logger('facebook_cron');
605 // Find the FB users on this site and randomize in case one of them
606 // uses an obscene amount of memory. It may kill this queue run
607 // but hopefully we'll get a few others through on each run.
609 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' ORDER BY RAND() ");
612 if(get_pconfig($rr['uid'],'facebook','no_linking'))
614 $ab = intval(get_config('system','account_abandon_days'));
616 $z = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY LIMIT 1",
624 // check for new friends once a day
625 $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check');
626 if($last_friend_check)
627 $next_friend_check = $last_friend_check + 86400;
629 $next_friend_check = 0;
630 if($next_friend_check <= time()) {
631 fb_get_friends($rr['uid'], true);
632 set_pconfig($rr['uid'],'facebook','friend_check',time());
634 fb_consume_all($rr['uid']);
638 if (get_config('facebook', 'realtime_active') == 1) {
639 if (!facebook_check_realtime_active()) {
641 logger('facebook_cron: Facebook is not sending Real-Time Updates any more, although it is supposed to. Trying to fix it...', LOGGER_NORMAL);
642 facebook_subscription_add_users();
644 if (facebook_check_realtime_active())
645 logger('facebook_cron: Successful', LOGGER_NORMAL);
647 logger('facebook_cron: Failed', LOGGER_NORMAL);
649 if(strlen($a->config['admin_email']) && !get_config('facebook', 'realtime_err_mailsent')) {
650 $res = mail($a->config['admin_email'], t('Problems with Facebook Real-Time Updates'),
651 "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.",
652 'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
653 . 'Content-type: text/plain; charset=UTF-8' . "\n"
654 . 'Content-transfer-encoding: 8bit'
657 set_config('facebook', 'realtime_err_mailsent', 1);
660 } else { // !facebook_check_realtime_active()
661 del_config('facebook', 'realtime_err_mailsent');
665 set_config('facebook','last_poll', time());
672 * @param null|object $b
674 function facebook_plugin_settings(&$a,&$b) {
676 $b .= '<div class="settings-block">';
677 $b .= '<h3>' . t('Facebook') . '</h3>';
678 $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />';
686 * @param null|object $o
688 function facebook_plugin_admin(&$a, &$o){
691 $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
693 $o .= '<h4>' . t('Facebook API Key') . '</h4>';
695 $appid = get_config('facebook', 'appid' );
696 $appsecret = get_config('facebook', 'appsecret' );
697 $poll_interval = get_config('facebook', 'poll_interval' );
698 if (!$poll_interval) $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
700 $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
701 $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
702 if ((count($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>');
704 $working_connection = false;
705 if ($appid && $appsecret) {
706 $subs = facebook_subscriptions_get();
707 if ($subs === null) $o .= t('Error: the given API Key seems to be incorrect (the application access token could not be retrieved).') . '<br>';
708 elseif (is_array($subs)) {
709 $o .= t('The given API Key seems to work correctly.') . '<br>';
710 $working_connection = true;
711 } else $o .= t('The correctness of the API Key could not be detected. Somthing strange\'s going on.') . '<br>';
714 $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
715 $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
716 $o .= '<label for="fb_poll_interval">' . sprintf(t('Polling Interval (min. %1$s minutes)'), FACEBOOK_MIN_POLL_INTERVAL) . '</label><input name="poll_interval" type="number" min="' . FACEBOOK_MIN_POLL_INTERVAL . '" value="' . $poll_interval . '"><br style="clear: both;">';
717 $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
719 if ($working_connection) {
720 $o .= '<h4>' . t('Real-Time Updates') . '</h4>';
722 $activated = facebook_check_realtime_active();
724 $o .= t('Real-Time Updates are activated.') . '<br><br>';
725 $o .= '<input type="submit" name="real_time_deactivate" value="' . t('Deactivate Real-Time Updates') . '">';
727 $o .= t('Real-Time Updates not activated.') . '<br><input type="submit" name="real_time_activate" value="' . t('Activate Real-Time Updates') . '">';
734 * @param null|object $o
736 function facebook_plugin_admin_post(&$a, &$o){
737 check_form_security_token_redirectOnErr('/admin/plugins/facebook', 'fbsave');
739 if (x($_REQUEST,'fb_save_keys')) {
740 set_config('facebook', 'appid', $_REQUEST['appid']);
741 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
742 $poll_interval = IntVal($_REQUEST['poll_interval']);
743 if ($poll_interval >= FACEBOOK_MIN_POLL_INTERVAL) set_config('facebook', 'poll_interval', $poll_interval);
744 del_config('facebook', 'app_access_token');
745 info(t('The new values have been saved.'));
747 if (x($_REQUEST,'real_time_activate')) {
748 facebook_subscription_add_users();
750 if (x($_REQUEST,'real_time_deactivate')) {
751 facebook_subscription_del_users();
760 function facebook_jot_nets(&$a,&$b) {
764 $fb_post = get_pconfig(local_user(),'facebook','post');
765 if(intval($fb_post) == 1) {
766 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
767 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
768 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
769 . t('Post to Facebook') . '</div>';
779 function facebook_post_hook(&$a,&$b) {
782 if($b['deleted'] || ($b['created'] !== $b['edited']))
786 * Post to Facebook stream
789 require_once('include/group.php');
790 require_once('include/html2plain.php');
792 logger('Facebook post');
798 $allow_arr = array();
800 $toplevel = (($b['id'] == $b['parent']) ? true : false);
803 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
805 if((! $toplevel) && ($linking)) {
806 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
807 intval($b['parent']),
810 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
811 $reply = substr($r[0]['uri'],4);
812 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
813 $reply = substr($r[0]['extid'],4);
817 $u = q("SELECT * FROM user where uid = %d limit 1",
823 // only accept comments from the item owner. Other contacts are unknown to FB.
825 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
829 logger('facebook reply id=' . $reply);
832 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
834 if($b['private'] && $reply === false) {
835 $allow_people = expand_acl($b['allow_cid']);
836 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
837 $deny_people = expand_acl($b['deny_cid']);
838 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
840 $recipients = array_unique(array_merge($allow_people,$allow_groups));
841 $deny = array_unique(array_merge($deny_people,$deny_groups));
843 $allow_str = dbesc(implode(', ',$recipients));
845 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
848 $allow_arr[] = $rr['notify'];
851 $deny_str = dbesc(implode(', ',$deny));
853 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
856 $deny_arr[] = $rr['notify'];
859 if(count($deny_arr) && (! count($allow_arr))) {
861 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
862 // This might cause the post to be open to public on Facebook, but only to selected members
863 // on another network. Since this could potentially leak a post to somebody who was denied,
864 // we will skip posting it to Facebook with a slightly vague but relevant message that will
865 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
867 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
872 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
874 if((! count($allow_arr)) && (! count($deny_arr)))
878 if($b['verb'] == ACTIVITY_LIKE)
882 $appid = get_config('facebook', 'appid' );
883 $secret = get_config('facebook', 'appsecret' );
885 if($appid && $secret) {
887 logger('facebook: have appid+secret');
889 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
892 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
893 // or it's a private message with facebook participants
894 // or it's a reply or likes action to an existing facebook post
896 if($fb_token && ($toplevel || $b['private'] || $reply)) {
897 logger('facebook: able to post');
898 require_once('library/facebook.php');
899 require_once('include/bbcode.php');
903 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
905 // make links readable before we strip the code
907 // unless it's a dislike - just send the text as a comment
909 if($b['verb'] == ACTIVITY_DISLIKE)
910 $msg = trim(strip_tags(bbcode($msg)));
913 /*$search_str = $a->get_baseurl() . '/search';
915 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
917 // don't use hashtags for message link
919 if(strpos($matches[2],$search_str) === false) {
921 if(substr($matches[2],0,5) != '[img]')
922 $linkname = $matches[2];
926 // strip tag links to avoid link clutter, this really should be
927 // configurable because we're losing information
929 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
931 // provide the link separately for normal links
932 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
934 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
935 $image = $matches[1];
937 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
939 if((strpos($link,z_root()) !== false) && (! $image))
940 $image = $a->get_baseurl() . '/images/friendica-64.jpg';
942 $msg = trim(strip_tags(bbcode($msg)));*/
946 // Looking for the first image
948 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
949 $image = $matches[3];
952 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
953 $image = $matches[1];
955 // Checking for a bookmark element
957 if (strpos($body, "[bookmark") !== false) {
958 // splitting the text in two parts:
959 // before and after the bookmark
960 $pos = strpos($body, "[bookmark");
961 $body1 = substr($body, 0, $pos);
962 $body2 = substr($body, $pos);
964 // Removing the bookmark and all quotes after the bookmark
965 // they are mostly only the content after the bookmark.
966 $body2 = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'',$body2);
967 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
968 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
970 $body = $body1.$body2;
973 // At first convert the text to html
974 $html = bbcode($body);
976 // Then convert it to plain text
977 $msg = trim($b['title']." \n\n".html2plain($html, 0, true));
978 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
980 // Removing multiple newlines
981 while (strpos($msg, "\n\n\n") !== false)
982 $msg = str_replace("\n\n\n", "\n\n", $msg);
984 // add any attachments as text urls
985 $arr = explode(',',$b['attach']);
989 foreach($arr as $r) {
991 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
993 $msg .= "\n".$matches[1];
1000 // look for bookmark-bbcode and handle it with priority
1001 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
1002 $link = $matches[1];
1003 $linkname = $matches[2];
1006 // If there is no bookmark element then take the first link
1008 $links = collecturls($html);
1009 if (sizeof($links) > 0) {
1011 $link = current($links);
1015 // Remove trailing and leading spaces
1018 // Since facebook increased the maxpostlen massively this never should happen again :)
1019 if (strlen($msg) > FACEBOOK_MAXPOSTLEN) {
1021 require_once('library/slinky.php');
1023 $display_url = $b['plink'];
1025 $slinky = new Slinky( $display_url );
1026 // setup a cascade of shortening services
1027 // try to get a short link from these services
1028 // in the order ur1.ca, trim, id.gd, tinyurl
1029 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
1030 $shortlink = $slinky->short();
1031 // the new message will be shortened such that "... $shortlink"
1032 // will fit into the character limit
1033 $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4);
1034 $msg .= '... ' . $shortlink;
1037 // Fallback - if message is empty
1047 // If there is nothing to post then exit
1051 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
1054 $postvars = array('access_token' => $fb_token);
1058 'access_token' => $fb_token,
1062 $postvars['picture'] = $image;
1063 //$postvars['type'] = "photo";
1066 $postvars['link'] = $link;
1067 //$postvars['type'] = "link";
1069 if(isset($linkname))
1070 $postvars['name'] = $linkname;
1073 if(($b['private']) && ($toplevel)) {
1074 $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
1075 if(count($allow_arr))
1076 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
1077 if(count($deny_arr))
1078 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
1079 $postvars['privacy'] .= '}';
1084 $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
1085 } else if (($link != "") or ($image != "") or ($b['title'] == '') or (strlen($msg) < 500)) {
1086 $url = 'https://graph.facebook.com/me/feed';
1088 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' . $b['plink'] . '"}';
1090 // if its only a message and a subject and the message is larger than 500 characters then post it as note
1092 'access_token' => $fb_token,
1093 'message' => bbcode($b['body']),
1094 'subject' => $b['title'],
1096 $url = 'https://graph.facebook.com/me/notes';
1099 logger('facebook: post to ' . $url);
1100 logger('facebook: postvars: ' . print_r($postvars,true));
1102 // "test_mode" prevents anything from actually being posted.
1103 // Otherwise, let's do it.
1105 if(! get_config('facebook','test_mode')) {
1106 $x = post_url($url, $postvars);
1107 logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
1109 $retj = json_decode($x);
1111 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1112 dbesc('fb::' . $retj->id),
1118 $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
1119 require_once('include/queue_fn.php');
1120 add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
1121 notice( t('Facebook post failed. Queued for retry.') . EOL);
1124 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
1125 logger('Facebook session has expired due to changed password.', LOGGER_DEBUG);
1127 $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
1128 if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
1129 require_once('include/enotify.php');
1131 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
1134 'type' => NOTIFY_SYSTEM,
1135 'system_type' => 'facebook_connection_invalid',
1136 'language' => $r[0]['language'],
1137 'to_name' => $r[0]['username'],
1138 'to_email' => $r[0]['email'],
1139 'source_name' => t('Administrator'),
1140 'source_link' => $a->config["system"]["url"],
1141 'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
1144 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
1145 } else logger('Facebook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
1156 * @param object $data
1158 function facebook_enotify(&$app, &$data) {
1159 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
1160 $data['itemlink'] = '/facebook';
1161 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
1162 $data['subject'] = t('Facebook connection became invalid');
1163 $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=" . $app->config["system"]["url"] . "/facebook]", "[/url]");
1171 function facebook_post_local(&$a,&$b) {
1173 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
1174 // where we will discover it during background delivery.
1176 // This can only be triggered by a local user posting to their own wall.
1178 if((local_user()) && (local_user() == $b['uid'])) {
1180 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
1181 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
1183 // if API is used, default to the chosen settings
1184 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default')))
1190 if(strlen($b['postopts']))
1191 $b['postopts'] .= ',';
1192 $b['postopts'] .= 'facebook';
1201 function fb_queue_hook(&$a,&$b) {
1203 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
1204 dbesc(NETWORK_FACEBOOK)
1209 require_once('include/queue_fn.php');
1211 foreach($qi as $x) {
1212 if($x['network'] !== NETWORK_FACEBOOK)
1215 logger('facebook_queue: run');
1217 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
1218 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
1226 $appid = get_config('facebook', 'appid' );
1227 $secret = get_config('facebook', 'appsecret' );
1229 if($appid && $secret) {
1230 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
1231 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
1233 if($fb_post && $fb_token) {
1234 logger('facebook_queue: able to post');
1235 require_once('library/facebook.php');
1237 $z = unserialize($x['content']);
1239 $j = post_url($z['url'],$z['post']);
1241 $retj = json_decode($j);
1243 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1244 dbesc('fb::' . $retj->id),
1247 logger('facebook_queue: success: ' . $j);
1248 remove_queue_item($x['id']);
1251 logger('facebook_queue: failed: ' . $j);
1252 update_queue_time($x['id']);
1260 * @param string $access_token
1264 function fb_get_timeline($access_token, &$since) {
1266 $entries = new stdClass();
1267 $entries->data = array();
1270 $url = 'https://graph.facebook.com/me/home?access_token='.$access_token;
1273 $url .= "&since=".$since;
1276 $s = fetch_url($url);
1277 $j = json_decode($s);
1278 $oldestdate = time();
1279 if (isset($j->data))
1280 foreach ($j->data as $entry) {
1281 $created = strtotime($entry->created_time);
1283 if ($newest < $created)
1286 if ($created >= $since)
1287 $entries->data[] = $entry;
1289 if ($created <= $oldestdate)
1290 $oldestdate = $created;
1295 $url = $j->paging->next;
1297 } while (($oldestdate > $since) and ($since != 0) and ($url != ''));
1299 if ($newest > $since)
1308 function fb_consume_all($uid) {
1310 require_once('include/items.php');
1312 $access_token = get_pconfig($uid,'facebook','access_token');
1316 if(! get_pconfig($uid,'facebook','no_wall')) {
1317 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
1318 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
1320 $j = json_decode($s);
1321 if (isset($j->data)) {
1322 logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA);
1323 fb_consume_stream($uid,$j,($private_wall) ? false : true);
1325 logger('fb_consume_stream: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1329 // Get the last date
1330 $lastdate = get_pconfig($uid,'facebook','lastdate');
1331 // fetch all items since the last date
1332 $j = fb_get_timeline($access_token, $lastdate);
1333 if (isset($j->data)) {
1334 logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA);
1335 fb_consume_stream($uid,$j,false);
1337 // Write back the last date
1338 set_pconfig($uid,'facebook','lastdate', $lastdate);
1340 logger('fb_consume_stream: feed: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1345 * @param string $link
1348 function fb_get_photo($uid,$link) {
1349 $access_token = get_pconfig($uid,'facebook','access_token');
1350 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1352 //return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1353 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1355 $photo_id = $match[1];
1358 $x = fetch_url('https://graph.facebook.com/' . $photo_id . '?access_token=' . $access_token);
1359 $j = json_decode($x);
1361 return "\n\n" . '[url=' . $link . '][img]' . $j->picture . '[/img][/url]';
1363 // return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1371 function fb_consume_stream($uid,$j,$wall = false) {
1376 $user = q("SELECT * FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
1382 $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1384 $no_linking = get_pconfig($uid,'facebook','no_linking');
1388 $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
1392 $blocked_apps = get_pconfig($uid,'facebook','blocked_apps');
1393 $blocked_apps_arr = explode(',',$blocked_apps);
1395 $self_id = get_pconfig($uid,'facebook','self_id');
1396 if(! count($j->data) || (! strlen($self_id)))
1399 foreach($j->data as $entry) {
1400 logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA);
1401 $datarray = array();
1403 $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1",
1404 dbesc('fb::' . $entry->id),
1405 dbesc('fb::' . $entry->id),
1409 $post_exists = true;
1411 $top_item = $r[0]['id'];
1414 $post_exists = false;
1419 $datarray['gravity'] = 0;
1420 $datarray['uid'] = $uid;
1421 $datarray['wall'] = (($wall) ? 1 : 0);
1422 $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id;
1423 $from = $entry->from;
1424 if($from->id == $self_id)
1425 $datarray['contact-id'] = $self[0]['id'];
1427 // Looking if user is known - if not he is added
1428 $access_token = get_pconfig($uid, 'facebook', 'access_token');
1429 fb_get_friends_sync_new($uid, $access_token, $from);
1431 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1436 $datarray['contact-id'] = $r[0]['id'];
1439 // don't store post if we don't have a contact
1440 if(! x($datarray,'contact-id')) {
1441 logger('facebook: no contact '.$from->name.' '.$from->id.'. post ignored');
1445 $datarray['verb'] = ACTIVITY_POST;
1447 $datarray['owner-name'] = $self[0]['name'];
1448 $datarray['owner-link'] = $self[0]['url'];
1449 $datarray['owner-avatar'] = $self[0]['thumb'];
1451 if(isset($entry->application) && isset($entry->application->name) && strlen($entry->application->name))
1452 $datarray['app'] = strip_tags($entry->application->name);
1454 $datarray['app'] = 'facebook';
1456 $found_blocked = false;
1458 if(count($blocked_apps_arr)) {
1459 foreach($blocked_apps_arr as $bad_appl) {
1460 if(strlen(trim($bad_appl)) && (stristr($datarray['app'],trim($bad_appl)))) {
1461 $found_blocked = true;
1466 if($found_blocked) {
1467 logger('facebook: blocking application: ' . $datarray['app']);
1471 $datarray['author-name'] = $from->name;
1472 $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id;
1473 $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture';
1474 $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1);
1476 logger('facebook: post '.$entry->id.' from '.$from->name);
1478 $datarray['body'] = escape_tags($entry->message);
1480 if($entry->name and $entry->link)
1481 $datarray['body'] .= "\n\n[bookmark=".$entry->link."]".$entry->name."[/bookmark]";
1482 elseif ($entry->name)
1483 $datarray['body'] .= "\n\n[b]" . $entry->name."[/b]";
1485 if($entry->caption) {
1486 if(!$entry->name and $entry->link)
1487 $datarray['body'] .= "\n\n[bookmark=".$entry->link."]".$entry->caption."[/bookmark]";
1489 $datarray['body'] .= "[i]" . $entry->caption."[/i]\n";
1492 if(!$entry->caption and !$entry->name) {
1494 $datarray['body'] .= "\n[url]".$entry->link."[/url]\n";
1496 $datarray['body'] .= "\n";
1500 if($entry->description)
1501 $quote = $entry->description;
1503 if ($entry->properties)
1504 foreach ($entry->properties as $property)
1505 $quote .= "\n".$property->name.": [url=".$property->href."]".$property->text."[/url]";
1508 $datarray['body'] .= "\n[quote]".$quote."[/quote]";
1510 // Only import the picture when the message is no video
1511 // oembed display a picture of the video as well
1512 if ($entry->type != "video") {
1513 if($entry->picture && $entry->link) {
1514 $datarray['body'] .= "\n" . '[url=' . $entry->link . '][img]'.$entry->picture.'[/img][/url]';
1518 $datarray['body'] .= "\n" . '[img]' . $entry->picture . '[/img]';
1519 // if just a link, it may be a wall photo - check
1521 $datarray['body'] .= fb_get_photo($uid,$entry->link);
1525 if (($datarray['app'] == "Events") and $entry->actions)
1526 foreach ($entry->actions as $action)
1527 if ($action->name == "View")
1528 $datarray['body'] .= " [url=".$action->link."]".$entry->story."[/url]";
1530 // Just as a test - to see if these are the missing entries
1531 //if(trim($datarray['body']) == '')
1532 // $datarray['body'] = $entry->story;
1534 // Adding the "story" text to see if there are useful data in it (testing)
1535 //if (($datarray['app'] != "Events") and $entry->story)
1536 // $datarray['body'] .= "\n".$entry->story;
1538 if(trim($datarray['body']) == '') {
1539 logger('facebook: empty body '.$entry->id.' '.print_r($entry, true));
1543 $datarray['body'] .= "\n";
1546 $datarray['body'] .= "[img]".$entry->icon."[/img] ";
1548 if ($entry->actions)
1549 foreach ($entry->actions as $action)
1550 if (($action->name != "Comment") and ($action->name != "Like"))
1551 $datarray['body'] .= "[url=".$action->link."]".$action->name."[/url] ";
1553 $datarray['body'] = trim($datarray['body']);
1555 //if(($datarray['body'] != '') and ($uid == 1))
1556 // $datarray['body'] .= "[noparse]".print_r($entry, true)."[/noparse]";
1558 if ($entry->place->name or $entry->place->location->street or
1559 $entry->place->location->city or $entry->place->location->Denmark) {
1560 $datarray['coord'] = '';
1561 if ($entry->place->name)
1562 $datarray['coord'] .= $entry->place->name;
1563 if ($entry->place->location->street)
1564 $datarray['coord'] .= $entry->place->location->street;
1565 if ($entry->place->location->city)
1566 $datarray['coord'] .= " ".$entry->place->location->city;
1567 if ($entry->place->location->country)
1568 $datarray['coord'] .= " ".$entry->place->location->country;
1569 } else if ($entry->place->location->latitude and $entry->place->location->longitude)
1570 $datarray['coord'] = substr($entry->place->location->latitude, 0, 8)
1571 .' '.substr($entry->place->location->longitude, 0, 8);
1573 $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time);
1574 $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time);
1576 // If the entry has a privacy policy, we cannot assume who can or cannot see it,
1577 // as the identities are from a foreign system. Mark it as private to the owner.
1579 if($entry->privacy && $entry->privacy->value !== 'EVERYONE') {
1580 $datarray['private'] = 1;
1581 $datarray['allow_cid'] = '<' . $self[0]['id'] . '>';
1584 $top_item = item_store($datarray);
1585 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1591 logger('fb: new top level item posted');
1595 if(isset($entry->likes) && isset($entry->likes->data))
1596 $likers = $entry->likes->data;
1600 if(isset($entry->comments) && isset($entry->comments->data))
1601 $comments = $entry->comments->data;
1605 if(is_array($likers)) {
1606 foreach($likers as $likes) {
1611 // If we posted the like locally, it will be found with our url, not the FB url.
1613 $second_url = (($likes->id == $self_id) ? $self[0]['url'] : 'http://facebook.com/profile.php?id=' . $likes->id);
1615 $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s'
1616 AND ( `author-link` = '%s' OR `author-link` = '%s' ) LIMIT 1",
1617 dbesc($orig_post['uri']),
1619 dbesc(ACTIVITY_LIKE),
1620 dbesc('http://facebook.com/profile.php?id=' . $likes->id),
1627 $likedata = array();
1628 $likedata['parent'] = $top_item;
1629 $likedata['verb'] = ACTIVITY_LIKE;
1630 $likedata['gravity'] = 3;
1631 $likedata['uid'] = $uid;
1632 $likedata['wall'] = (($wall) ? 1 : 0);
1633 $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid);
1634 $likedata['parent-uri'] = $orig_post['uri'];
1635 if($likes->id == $self_id)
1636 $likedata['contact-id'] = $self[0]['id'];
1638 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1643 $likedata['contact-id'] = $r[0]['id'];
1645 if(! x($likedata,'contact-id'))
1646 $likedata['contact-id'] = $orig_post['contact-id'];
1648 $likedata['app'] = 'facebook';
1649 $likedata['verb'] = ACTIVITY_LIKE;
1650 $likedata['author-name'] = $likes->name;
1651 $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id;
1652 $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture';
1654 $author = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]';
1655 $objauthor = '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]';
1656 $post_type = t('status');
1657 $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]';
1658 $likedata['object-type'] = ACTIVITY_OBJ_NOTE;
1660 $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink);
1661 $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' .
1662 '<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>';
1664 $item = item_store($likedata);
1667 if(is_array($comments)) {
1668 foreach($comments as $cmnt) {
1673 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1",
1675 dbesc('fb::' . $cmnt->id),
1676 dbesc('fb::' . $cmnt->id)
1681 $cmntdata = array();
1682 $cmntdata['parent'] = $top_item;
1683 $cmntdata['verb'] = ACTIVITY_POST;
1684 $cmntdata['gravity'] = 6;
1685 $cmntdata['uid'] = $uid;
1686 $cmntdata['wall'] = (($wall) ? 1 : 0);
1687 $cmntdata['uri'] = 'fb::' . $cmnt->id;
1688 $cmntdata['parent-uri'] = $orig_post['uri'];
1689 if($cmnt->from->id == $self_id) {
1690 $cmntdata['contact-id'] = $self[0]['id'];
1693 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1",
1694 dbesc($cmnt->from->id),
1698 $cmntdata['contact-id'] = $r[0]['id'];
1699 if($r[0]['blocked'] || $r[0]['readonly'])
1703 if(! x($cmntdata,'contact-id'))
1704 $cmntdata['contact-id'] = $orig_post['contact-id'];
1706 $cmntdata['app'] = 'facebook';
1707 $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1708 $cmntdata['edited'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1709 $cmntdata['verb'] = ACTIVITY_POST;
1710 $cmntdata['author-name'] = $cmnt->from->name;
1711 $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id;
1712 $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture';
1713 $cmntdata['body'] = $cmnt->message;
1714 $item = item_store($cmntdata);
1716 $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
1717 dbesc($orig_post['uri']),
1721 if(count($myconv)) {
1722 $importer_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1724 foreach($myconv as $conv) {
1726 // now if we find a match, it means we're in this conversation
1728 if(! link_compare($conv['author-link'],$importer_url))
1731 require_once('include/enotify.php');
1733 $conv_parent = $conv['parent'];
1736 'type' => NOTIFY_COMMENT,
1737 'notify_flags' => $user[0]['notify-flags'],
1738 'language' => $user[0]['language'],
1739 'to_name' => $user[0]['username'],
1740 'to_email' => $user[0]['email'],
1741 'uid' => $user[0]['uid'],
1742 'item' => $cmntdata,
1743 'link' => $a->get_baseurl() . '/display/' . $user[0]['nickname'] . '/' . $item,
1744 'source_name' => $cmntdata['author-name'],
1745 'source_link' => $cmntdata['author-link'],
1746 'source_photo' => $cmntdata['author-avatar'],
1747 'verb' => ACTIVITY_POST,
1749 'parent' => $conv_parent,
1752 // only send one notification
1763 * @return bool|string
1765 function fb_get_app_access_token() {
1767 $acc_token = get_config('facebook','app_access_token');
1769 if ($acc_token !== false) return $acc_token;
1771 $appid = get_config('facebook','appid');
1772 $appsecret = get_config('facebook', 'appsecret');
1774 if ($appid === false || $appsecret === false) {
1775 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
1778 logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
1779 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
1781 if(strpos($x,'access_token=') !== false) {
1782 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
1784 $token = str_replace('access_token=', '', $x);
1785 if(strpos($token,'&') !== false)
1786 $token = substr($token,0,strpos($token,'&'));
1789 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
1792 set_config('facebook','app_access_token',$token);
1795 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
1800 function facebook_subscription_del_users() {
1802 $access_token = fb_get_app_access_token();
1804 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1805 facebook_delete_url($url);
1807 if (!facebook_check_realtime_active()) del_config('facebook', 'realtime_active');
1811 * @param bool $second_try
1813 function facebook_subscription_add_users($second_try = false) {
1815 $access_token = fb_get_app_access_token();
1817 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1819 list($usec, $sec) = explode(" ", microtime());
1820 $verify_token = sha1($usec . $sec . rand(0, 999999999));
1821 set_config('facebook', 'cb_verify_token', $verify_token);
1823 $cb = $a->get_baseurl() . '/facebook/?realtime_cb=1';
1825 $j = post_url($url,array(
1827 "fields" => "feed,friends",
1828 "callback_url" => $cb,
1829 "verify_token" => $verify_token,
1831 del_config('facebook', 'cb_verify_token');
1834 $x = json_decode($j);
1835 logger("Facebook reponse: " . $j, LOGGER_DATA);
1836 if (isset($x->error)) {
1837 logger('facebook_subscription_add_users: got an error: ' . $j);
1838 if ($x->error->type == "OAuthException" && $x->error->code == 190) {
1839 del_config('facebook', 'app_access_token');
1840 if ($second_try === false) facebook_subscription_add_users(true);
1843 logger('facebook_subscription_add_users: sucessful');
1844 if (facebook_check_realtime_active()) set_config('facebook', 'realtime_active', 1);
1850 * @return null|array
1852 function facebook_subscriptions_get() {
1854 $access_token = fb_get_app_access_token();
1855 if (!$access_token) return null;
1857 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1858 $j = fetch_url($url);
1861 $x = json_decode($j);
1862 if (isset($x->data)) $ret = $x->data;
1871 function facebook_check_realtime_active() {
1872 $ret = facebook_subscriptions_get();
1873 if (is_null($ret)) return false;
1874 if (is_array($ret)) foreach ($ret as $re) if (is_object($re) && $re->object == "user") return true;
1881 // DELETE-request to $url
1883 if(! function_exists('facebook_delete_url')) {
1885 * @param string $url
1886 * @param null|array $headers
1887 * @param int $redirects
1888 * @param int $timeout
1889 * @return bool|string
1891 function facebook_delete_url($url,$headers = null, &$redirects = 0, $timeout = 0) {
1893 $ch = curl_init($url);
1894 if(($redirects > 8) || (! $ch))
1897 curl_setopt($ch, CURLOPT_HEADER, true);
1898 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
1899 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
1900 curl_setopt($ch, CURLOPT_USERAGENT, "Friendica");
1902 if(intval($timeout)) {
1903 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
1906 $curl_time = intval(get_config('system','curl_timeout'));
1907 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
1910 if(defined('LIGHTTPD')) {
1911 if(!is_array($headers)) {
1912 $headers = array('Expect:');
1914 if(!in_array('Expect:', $headers)) {
1915 array_push($headers, 'Expect:');
1920 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
1922 $check_cert = get_config('system','verifyssl');
1923 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
1924 $prx = get_config('system','proxy');
1926 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
1927 curl_setopt($ch, CURLOPT_PROXY, $prx);
1928 $prxusr = get_config('system','proxyuser');
1930 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
1933 $a->set_curl_code(0);
1935 // don't let curl abort the entire application
1936 // if it throws any errors.
1938 $s = @curl_exec($ch);
1941 $curl_info = curl_getinfo($ch);
1942 $http_code = $curl_info['http_code'];
1946 // Pull out multiple headers, e.g. proxy and continuation headers
1947 // allow for HTTP/2.x without fixing code
1949 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
1950 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
1952 $base = substr($base,strlen($chunk));
1955 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
1957 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
1958 $url = trim(array_pop($matches));
1959 $url_parsed = @parse_url($url);
1960 if (isset($url_parsed)) {
1962 return facebook_delete_url($url,$headers,$redirects,$timeout);
1965 $a->set_curl_code($http_code);
1966 $body = substr($s,strlen($header));
1968 $a->set_curl_headers($header);