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 * 1. register an API key for your site from developer.facebook.com
13 * a. We'd be very happy if you include "Friendica" in the application name
14 * to increase name recognition. The Friendica icons are also present
15 * in the images directory and may be uploaded as a Facebook app icon.
16 * Use images/friendica-16.jpg for the Icon and images/friendica-128.jpg for the Logo.
17 * b. The url should be your site URL with a trailing slash.
18 * Friendica is a software application and does not require a Privacy Policy
19 * or Terms of Service, though your installation of it might. Facebook may require
20 * that you provide a Privacy Policy, which we find ironic.
21 * c. Set the following values in your .htconfig.php file
22 * $a->config['facebook']['appid'] = 'xxxxxxxxxxx';
23 * $a->config['facebook']['appsecret'] = 'xxxxxxxxxxxxxxx';
24 * Replace with the settings Facebook gives you.
25 * d. Navigate to Set Web->Site URL & Domain -> Website Settings. Set
26 * Site URL to yoursubdomain.yourdomain.com. Set Site Domain to your
28 * 2. (This step is now obsolete. Enable the plugin via the Admin panel.)
29 * Enable the facebook plugin by including it in .htconfig.php - e.g.
30 * $a->config['system']['addon'] = 'plugin1,plugin2,facebook';
31 * 3. Visit the Facebook Settings section of the "Settings->Plugin Settings" page.
32 * and click 'Install Facebook Connector'.
33 * 4. This will ask you to login to Facebook and grant permission to the
34 * plugin to do its stuff. Allow it to do so.
35 * 5. Optional step: If you want to use Facebook Real Time Updates (so new messages
36 * and new contacts are added ~1min after they are postet / added on FB), go to
37 * Settings -> plugins -> facebook and press the "Activate Real-Time Updates"-button.
38 * 6. You're done. To turn it off visit the Plugin Settings page again and
39 * 'Remove Facebook posting'.
41 * Vidoes and embeds will not be posted if there is no other content. Links
42 * and images will be converted to a format suitable for the Facebook API and
43 * long posts truncated - with a link to view the full post.
45 * Facebook contacts will not be able to view private photos, as they are not able to
46 * authenticate to your site to establish identity. We will address this
47 * in a future release.
51 * - Implement a method for the administrator to delete all configuration data the plugin has created,
52 * e.g. the app_access_token
53 * - Implement a configuration option to set the polling interval system-wide
56 // Size of maximum post length increased
57 // see http://www.facebook.com/schrep/posts/203969696349811
58 // define('FACEBOOK_MAXPOSTLEN', 420);
59 define('FACEBOOK_MAXPOSTLEN', 63206);
62 function facebook_install() {
63 register_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
64 register_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
65 register_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
66 register_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
67 register_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
68 register_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
69 register_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
73 function facebook_uninstall() {
74 unregister_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
75 unregister_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
76 unregister_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
77 unregister_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
78 unregister_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
79 unregister_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
80 unregister_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
83 unregister_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook');
84 unregister_hook('plugin_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
88 /* declare the facebook_module function so that /facebook url requests will land here */
90 function facebook_module() {}
94 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
95 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
97 function facebook_init(&$a) {
99 if (x($_REQUEST, "realtime_cb") && x($_REQUEST, "realtime_cb")) {
100 logger("facebook_init: Facebook Real-Time callback called", LOGGER_DEBUG);
102 if (x($_REQUEST, "hub_verify_token")) {
103 // this is the verification callback while registering for real time updates
105 $verify_token = get_config('facebook', 'cb_verify_token');
106 if ($verify_token != $_REQUEST["hub_verify_token"]) {
107 logger('facebook_init: Wrong Facebook Callback Verifier - expected ' . $verify_token . ', got ' . $_REQUEST["hub_verify_token"]);
111 if (x($_REQUEST, "hub_challenge")) {
112 logger('facebook_init: Answering Challenge: ' . $_REQUEST["hub_challenge"], LOGGER_DATA);
113 echo $_REQUEST["hub_challenge"];
118 require_once('include/items.php');
120 // this is a status update
121 $content = file_get_contents("php://input");
122 if (is_numeric($content)) $content = file_get_contents("php://input");
123 $js = json_decode($content);
124 logger(print_r($js, true), LOGGER_DATA);
126 if (!isset($js->object) || $js->object != "user" || !isset($js->entry)) {
127 logger('facebook_init: Could not parse Real-Time Update data', LOGGER_DEBUG);
131 $affected_users = array("feed" => array(), "friends" => array());
133 foreach ($js->entry as $entry) {
134 $fbuser = $entry->uid;
135 foreach ($entry->changed_fields as $field) {
136 if (!isset($affected_users[$field])) {
137 logger('facebook_init: Unknown field "' . $field . '"');
140 if (in_array($fbuser, $affected_users[$field])) continue;
142 $r = q("SELECT `uid` FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'self_id' AND `v` = '%s' LIMIT 1", dbesc($fbuser));
147 $access_token = get_pconfig($uid,'facebook','access_token');
153 logger('facebook_init: FB-User ' . $fbuser . ' / feed', LOGGER_DEBUG);
155 if(! get_pconfig($uid,'facebook','no_wall')) {
156 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
157 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
159 $j = json_decode($s);
160 if (isset($j->data)) {
161 logger('facebook_init: wall: ' . print_r($j,true), LOGGER_DATA);
162 fb_consume_stream($uid,$j,($private_wall) ? false : true);
164 logger('facebook_init: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
171 logger('facebook_init: FB-User ' . $fbuser . ' / friends', LOGGER_DEBUG);
173 fb_get_friends($uid, false);
174 set_pconfig($uid,'facebook','friend_check',time());
177 logger('facebook_init: Unknown callback field for ' . $fbuser, LOGGER_NORMAL);
179 $affected_users[$field][] = $fbuser;
189 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
196 $auth_code = (x($_GET, 'code') ? $_GET['code'] : '');
197 $error = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
201 logger('facebook_init: Error: ' . $error);
203 if($auth_code && $uid) {
205 $appid = get_config('facebook','appid');
206 $appsecret = get_config('facebook', 'appsecret');
208 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
209 . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
210 . urlencode($a->get_baseurl() . '/facebook/' . $nick)
211 . '&code=' . $auth_code);
213 logger('facebook_init: returned access token: ' . $x, LOGGER_DATA);
215 if(strpos($x,'access_token=') !== false) {
216 $token = str_replace('access_token=', '', $x);
217 if(strpos($token,'&') !== false)
218 $token = substr($token,0,strpos($token,'&'));
219 set_pconfig($uid,'facebook','access_token',$token);
220 set_pconfig($uid,'facebook','post','1');
221 if(get_pconfig($uid,'facebook','no_linking') === false)
222 set_pconfig($uid,'facebook','no_linking',1);
224 fb_get_friends($uid, true);
225 fb_consume_all($uid);
234 function fb_get_self($uid) {
235 $access_token = get_pconfig($uid,'facebook','access_token');
238 $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
240 $j = json_decode($s);
241 set_pconfig($uid,'facebook','self_id',(string) $j->id);
245 function fb_get_friends_sync_new($uid, $access_token, $person) {
246 $link = 'http://facebook.com/profile.php?id=' . $person->id;
248 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
253 if (count($r) == 0) {
254 logger('fb_get_friends: new contact found: ' . $link, LOGGER_DEBUG);
256 fb_get_friends_sync_full($uid, $access_token, $person);
260 function fb_get_friends_sync_full($uid, $access_token, $person) {
261 $s = fetch_url('https://graph.facebook.com/' . $person->id . '?access_token=' . $access_token);
263 $jp = json_decode($s);
264 logger('fb_get_friends: info: ' . print_r($jp,true), LOGGER_DATA);
266 // always use numeric link for consistency
268 $jp->link = 'http://facebook.com/profile.php?id=' . $person->id;
270 // check if we already have a contact
272 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
279 // check that we have all the photos, this has been known to fail on occasion
281 if((! $r[0]['photo']) || (! $r[0]['thumb']) || (! $r[0]['micro'])) {
282 require_once("Photo.php");
284 $photos = import_profile_photo('https://graph.facebook.com/' . $jp->id . '/picture', $uid, $r[0]['id']);
286 $r = q("UPDATE `contact` SET `photo` = '%s',
292 WHERE `id` = %d LIMIT 1
297 dbesc(datetime_convert()),
298 dbesc(datetime_convert()),
299 dbesc(datetime_convert()),
307 // create contact record
308 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `addr`, `alias`, `notify`, `poll`,
309 `name`, `nick`, `photo`, `network`, `rel`, `priority`,
310 `writable`, `blocked`, `readonly`, `pending` )
311 VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
313 dbesc(datetime_convert()),
315 dbesc(normalise_link($jp->link)),
319 dbesc('facebook ' . $jp->id),
321 dbesc(($jp->nickname) ? $jp->nickname : strtolower($jp->first_name)),
322 dbesc('https://graph.facebook.com/' . $jp->id . '/picture'),
323 dbesc(NETWORK_FACEBOOK),
324 intval(CONTACT_IS_FRIEND),
330 $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
340 $contact_id = $r[0]['id'];
342 require_once("Photo.php");
344 $photos = import_profile_photo($r[0]['photo'],$uid,$contact_id);
346 $r = q("UPDATE `contact` SET `photo` = '%s',
352 WHERE `id` = %d LIMIT 1
357 dbesc(datetime_convert()),
358 dbesc(datetime_convert()),
359 dbesc(datetime_convert()),
366 // if $fullsync is true, only new contacts are searched for
368 function fb_get_friends($uid, $fullsync = true) {
370 $r = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
376 $access_token = get_pconfig($uid,'facebook','access_token');
378 $no_linking = get_pconfig($uid,'facebook','no_linking');
384 $s = fetch_url('https://graph.facebook.com/me/friends?access_token=' . $access_token);
386 logger('facebook: fb_get_friends: ' . $s, LOGGER_DATA);
387 $j = json_decode($s);
388 logger('facebook: fb_get_friends: json: ' . print_r($j,true), LOGGER_DATA);
391 foreach($j->data as $person)
393 fb_get_friends_sync_full($uid, $access_token, $person);
395 fb_get_friends_sync_new($uid, $access_token, $person);
399 // This is the POST method to the facebook settings page
400 // Content is posted to Facebook in the function facebook_post_hook()
402 function facebook_post(&$a) {
407 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
408 set_pconfig($uid,'facebook','post_by_default', $value);
410 $no_linking = get_pconfig($uid,'facebook','no_linking');
412 $no_wall = ((x($_POST,'facebook_no_wall')) ? intval($_POST['facebook_no_wall']) : 0);
413 set_pconfig($uid,'facebook','no_wall',$no_wall);
415 $private_wall = ((x($_POST,'facebook_private_wall')) ? intval($_POST['facebook_private_wall']) : 0);
416 set_pconfig($uid,'facebook','private_wall',$private_wall);
419 set_pconfig($uid,'facebook','blocked_apps',escape_tags(trim($_POST['blocked_apps'])));
421 $linkvalue = ((x($_POST,'facebook_linking')) ? intval($_POST['facebook_linking']) : 0);
422 set_pconfig($uid,'facebook','no_linking', (($linkvalue) ? 0 : 1));
424 // FB linkage was allowed but has just been turned off - remove all FB contacts and posts
426 if((! intval($no_linking)) && (! intval($linkvalue))) {
427 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' ",
429 dbesc(NETWORK_FACEBOOK)
432 require_once('include/Contact.php');
434 contact_remove($rr['id']);
437 elseif(intval($no_linking) && intval($linkvalue)) {
438 // FB linkage is now allowed - import stuff.
440 fb_get_friends($uid, true);
441 fb_consume_all($uid);
444 info( t('Settings updated.') . EOL);
450 // Facebook settings form
452 function facebook_content(&$a) {
455 notice( t('Permission denied.') . EOL);
459 if($a->argc > 1 && $a->argv[1] === 'remove') {
460 del_pconfig(local_user(),'facebook','post');
461 info( t('Facebook disabled') . EOL);
464 if($a->argc > 1 && $a->argv[1] === 'friends') {
465 fb_get_friends(local_user(), true);
466 info( t('Updating contacts') . EOL);
470 $fb_installed = get_pconfig(local_user(),'facebook','post');
472 $appid = get_config('facebook','appid');
475 notice( t('Facebook API key is missing.') . EOL);
479 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
480 . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n";
482 $o .= '<h3>' . t('Facebook Connect') . '</h3>';
484 if(! $fb_installed) {
485 $o .= '<div id="facebook-enable-wrapper">';
487 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
488 . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>';
493 $o .= '<div id="facebook-disable-wrapper">';
495 $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>';
497 $o .= '<div id="facebook-enable-wrapper">';
499 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
500 . $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>';
503 $o .= '<div id="facebook-post-default-form">';
504 $o .= '<form action="facebook" method="post" >';
505 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
506 $checked = (($post_by_default) ? ' checked="checked" ' : '');
507 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
509 $no_linking = get_pconfig(local_user(),'facebook','no_linking');
510 $checked = (($no_linking) ? '' : ' checked="checked" ');
511 $o .= '<input type="checkbox" name="facebook_linking" value="1"' . $checked . '/>' . ' ' . t('Link all your Facebook friends and conversations on this website') . EOL ;
513 $o .= '<p>' . t('Facebook conversations consist of your <em>profile wall</em> and your friend <em>stream</em>.');
514 $o .= ' ' . t('On this website, your Facebook friend stream is only visible to you.');
515 $o .= ' ' . t('The following settings determine the privacy of your Facebook profile wall on this website.') . '</p>';
517 $private_wall = get_pconfig(local_user(),'facebook','private_wall');
518 $checked = (($private_wall) ? ' checked="checked" ' : '');
519 $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 ;
522 $no_wall = get_pconfig(local_user(),'facebook','no_wall');
523 $checked = (($no_wall) ? ' checked="checked" ' : '');
524 $o .= '<input type="checkbox" name="facebook_no_wall" value="1"' . $checked . '/>' . ' ' . t('Do not import your Facebook profile wall conversations') . EOL ;
526 $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>';
529 $blocked_apps = get_pconfig(local_user(),'facebook','blocked_apps');
531 $o .= '<div><label id="blocked-apps-label" for="blocked-apps">' . t('Comma separated applications to ignore') . ' </label></div>';
532 $o .= '<div><textarea id="blocked-apps" name="blocked_apps" >' . htmlspecialchars($blocked_apps) . '</textarea></div>';
534 $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
542 function facebook_cron($a,$b) {
544 $last = get_config('facebook','last_poll');
546 $poll_interval = intval(get_config('facebook','poll_interval'));
548 $poll_interval = 3600;
551 $next = $last + $poll_interval;
556 logger('facebook_cron');
559 // Find the FB users on this site and randomize in case one of them
560 // uses an obscene amount of memory. It may kill this queue run
561 // but hopefully we'll get a few others through on each run.
563 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' ORDER BY RAND() ");
566 if(get_pconfig($rr['uid'],'facebook','no_linking'))
568 $ab = intval(get_config('system','account_abandon_days'));
570 $z = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY LIMIT 1",
578 // check for new friends once a day
579 $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check');
580 if($last_friend_check)
581 $next_friend_check = $last_friend_check + 86400;
582 if($next_friend_check <= time()) {
583 fb_get_friends($rr['uid'], true);
584 set_pconfig($rr['uid'],'facebook','friend_check',time());
586 fb_consume_all($rr['uid']);
590 if (get_config('facebook', 'realtime_active') == 1) {
591 if (!facebook_check_realtime_active()) {
593 logger('facebook_cron: Facebook is not sending Real-Time Updates any more, although it is supposed to. Trying to fix it...', LOGGER_NORMAL);
594 facebook_subscription_add_users();
596 if (facebook_check_realtime_active())
597 logger('facebook_cron: Successful', LOGGER_NORMAL);
599 logger('facebook_cron: Failed', LOGGER_NORMAL);
601 if(strlen($a->config['admin_email']) && !get_config('facebook', 'realtime_err_mailsent')) {
602 $res = mail($a->config['admin_email'], t('Problems with Facebook Real-Time Updates'),
603 "Hi!\n\nThere's a problem with the Facebook Real-Time Updates that cannot be solved automatically. Maybe an permission issue?\n\nThis e-mail will only be sent once.",
604 'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
605 . 'Content-type: text/plain; charset=UTF-8' . "\n"
606 . 'Content-transfer-encoding: 8bit'
609 set_config('facebook', 'realtime_err_mailsent', 1);
612 } else { // !facebook_check_realtime_active()
613 del_config('facebook', 'realtime_err_mailsent');
617 set_config('facebook','last_poll', time());
623 function facebook_plugin_settings(&$a,&$b) {
625 $b .= '<div class="settings-block">';
626 $b .= '<h3>' . t('Facebook') . '</h3>';
627 $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />';
633 function facebook_plugin_admin(&$a, &$o){
635 $activated = facebook_check_realtime_active();
637 $o = t('Real-Time Updates are activated.') . '<br><br>';
638 $o .= '<input type="submit" name="real_time_deactivate" value="' . t('Deactivate Real-Time Updates') . '">';
640 $o = t('Real-Time Updates not activated.') . '<br><input type="submit" name="real_time_activate" value="' . t('Activate Real-Time Updates') . '">';
644 function facebook_plugin_admin_post(&$a, &$o){
645 if (x($_REQUEST,'real_time_activate')) {
646 facebook_subscription_add_users();
648 if (x($_REQUEST,'real_time_deactivate')) {
649 facebook_subscription_del_users();
653 function facebook_jot_nets(&$a,&$b) {
657 $fb_post = get_pconfig(local_user(),'facebook','post');
658 if(intval($fb_post) == 1) {
659 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
660 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
661 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
662 . t('Post to Facebook') . '</div>';
667 function facebook_post_hook(&$a,&$b) {
670 if($b['deleted'] || ($b['created'] !== $b['edited']))
674 * Post to Facebook stream
677 require_once('include/group.php');
678 require_once('include/html2plain.php');
680 logger('Facebook post');
685 $toplevel = (($b['id'] == $b['parent']) ? true : false);
688 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
690 if((! $toplevel) && ($linking)) {
691 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
692 intval($b['parent']),
695 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
696 $reply = substr($r[0]['uri'],4);
697 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
698 $reply = substr($r[0]['extid'],4);
702 $u = q("SELECT * FROM user where uid = %d limit 1",
708 // only accept comments from the item owner. Other contacts are unknown to FB.
710 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
714 logger('facebook reply id=' . $reply);
717 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
719 if($b['private'] && $reply === false) {
720 $allow_people = expand_acl($b['allow_cid']);
721 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
722 $deny_people = expand_acl($b['deny_cid']);
723 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
725 $recipients = array_unique(array_merge($allow_people,$allow_groups));
726 $deny = array_unique(array_merge($deny_people,$deny_groups));
728 $allow_str = dbesc(implode(', ',$recipients));
730 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
731 $allow_arr = array();
734 $allow_arr[] = $rr['notify'];
737 $deny_str = dbesc(implode(', ',$deny));
739 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
743 $deny_arr[] = $rr['notify'];
746 if(count($deny_arr) && (! count($allow_arr))) {
748 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
749 // This might cause the post to be open to public on Facebook, but only to selected members
750 // on another network. Since this could potentially leak a post to somebody who was denied,
751 // we will skip posting it to Facebook with a slightly vague but relevant message that will
752 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
754 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
759 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
761 if((! count($allow_arr)) && (! count($deny_arr)))
765 if($b['verb'] == ACTIVITY_LIKE)
769 $appid = get_config('facebook', 'appid' );
770 $secret = get_config('facebook', 'appsecret' );
772 if($appid && $secret) {
774 logger('facebook: have appid+secret');
776 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
779 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
780 // or it's a private message with facebook participants
781 // or it's a reply or likes action to an existing facebook post
783 if($fb_token && ($toplevel || $b['private'] || $reply)) {
784 logger('facebook: able to post');
785 require_once('library/facebook.php');
786 require_once('include/bbcode.php');
790 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
792 // make links readable before we strip the code
794 // unless it's a dislike - just send the text as a comment
796 if($b['verb'] == ACTIVITY_DISLIKE)
797 $msg = trim(strip_tags(bbcode($msg)));
800 /*$search_str = $a->get_baseurl() . '/search';
802 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
804 // don't use hashtags for message link
806 if(strpos($matches[2],$search_str) === false) {
808 if(substr($matches[2],0,5) != '[img]')
809 $linkname = $matches[2];
813 // strip tag links to avoid link clutter, this really should be
814 // configurable because we're losing information
816 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
818 // provide the link separately for normal links
819 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
821 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
822 $image = $matches[1];
824 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
826 if((strpos($link,z_root()) !== false) && (! $image))
827 $image = $a->get_baseurl() . '/images/friendica-64.jpg';
829 $msg = trim(strip_tags(bbcode($msg)));*/
833 // Looking for the first image
835 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
836 $image = $matches[3];
839 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
840 $image = $matches[1];
842 // Checking for a bookmark element
844 if (strpos($body, "[bookmark") !== false) {
845 // splitting the text in two parts:
846 // before and after the bookmark
847 $pos = strpos($body, "[bookmark");
848 $body1 = substr($body, 0, $pos);
849 $body2 = substr($body, $pos);
851 // Removing the bookmark and all quotes after the bookmark
852 // they are mostly only the content after the bookmark.
853 $body2 = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'',$body2);
854 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
855 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
857 $body = $body1.$body2;
860 // At first convert the text to html
861 $html = bbcode($body);
863 // Then convert it to plain text
864 $msg = trim($b['title']." \n\n".html2plain($html, 0, true));
865 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
867 // Removing multiple newlines
868 while (strpos($msg, "\n\n\n") !== false)
869 $msg = str_replace("\n\n\n", "\n\n", $msg);
871 // add any attachments as text urls
872 $arr = explode(',',$b['attach']);
876 foreach($arr as $r) {
878 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
880 $msg .= "\n".$matches[1];
887 // look for bookmark-bbcode and handle it with priority
888 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
890 $linkname = $matches[2];
893 // If there is no bookmark element then take the first link
895 $links = collecturls($html);
896 if (sizeof($links) > 0) {
898 $link = current($links);
902 // Remove trailing and leading spaces
905 // Since facebook increased the maxpostlen massively this never should happen again :)
906 if (strlen($msg) > FACEBOOK_MAXPOSTLEN) {
908 require_once('library/slinky.php');
910 $display_url = $b['plink'];
912 $slinky = new Slinky( $display_url );
913 // setup a cascade of shortening services
914 // try to get a short link from these services
915 // in the order ur1.ca, trim, id.gd, tinyurl
916 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
917 $shortlink = $slinky->short();
918 // the new message will be shortened such that "... $shortlink"
919 // will fit into the character limit
920 $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4);
921 $msg .= '... ' . $shortlink;
924 // Fallback - if message is empty
934 // If there is nothing to post then exit
938 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
941 $postvars = array('access_token' => $fb_token);
945 'access_token' => $fb_token,
949 $postvars['picture'] = $image;
951 $postvars['link'] = $link;
953 $postvars['name'] = $linkname;
956 if(($b['private']) && ($toplevel)) {
957 $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
958 if(count($allow_arr))
959 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
961 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
962 $postvars['privacy'] .= '}';
967 $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
970 $url = 'https://graph.facebook.com/me/feed';
972 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' . $b['plink'] . '"}';
975 logger('facebook: post to ' . $url);
976 logger('facebook: postvars: ' . print_r($postvars,true));
978 // "test_mode" prevents anything from actually being posted.
979 // Otherwise, let's do it.
981 if(! get_config('facebook','test_mode')) {
982 $x = post_url($url, $postvars);
984 $retj = json_decode($x);
986 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
987 dbesc('fb::' . $retj->id),
990 del_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
994 $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
995 require_once('include/queue_fn.php');
996 add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
997 notice( t('Facebook post failed. Queued for retry.') . EOL);
1000 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
1001 logger('Facebook session has expired due to changed password.', LOGGER_DEBUG);
1002 if (!get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent')) {
1003 require_once('include/enotify.php');
1005 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
1008 'type' => NOTIFY_SYSTEM,
1009 'system_type' => 'facebook_connection_invalid',
1010 'language' => $r[0]['language'],
1011 'to_name' => $r[0]['username'],
1012 'to_email' => $r[0]['email'],
1015 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', '1');
1020 logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
1027 function facebook_enotify(&$app, &$data) {
1028 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
1029 $data['itemlink'] = '/facebook';
1030 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
1031 $data['subject'] = t('Facebook connection became invalid');
1035 function facebook_post_local(&$a,&$b) {
1037 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
1038 // where we will discover it during background delivery.
1040 // This can only be triggered by a local user posting to their own wall.
1042 if((local_user()) && (local_user() == $b['uid'])) {
1044 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
1045 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
1047 // if API is used, default to the chosen settings
1048 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default')))
1054 if(strlen($b['postopts']))
1055 $b['postopts'] .= ',';
1056 $b['postopts'] .= 'facebook';
1061 function fb_queue_hook(&$a,&$b) {
1063 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
1064 dbesc(NETWORK_FACEBOOK)
1069 require_once('include/queue_fn.php');
1071 foreach($qi as $x) {
1072 if($x['network'] !== NETWORK_FACEBOOK)
1075 logger('facebook_queue: run');
1077 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
1078 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
1086 $appid = get_config('facebook', 'appid' );
1087 $secret = get_config('facebook', 'appsecret' );
1089 if($appid && $secret) {
1090 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
1091 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
1093 if($fb_post && $fb_token) {
1094 logger('facebook_queue: able to post');
1095 require_once('library/facebook.php');
1097 $z = unserialize($x['content']);
1099 $j = post_url($z['url'],$z['post']);
1101 $retj = json_decode($j);
1103 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1104 dbesc('fb::' . $retj->id),
1107 logger('facebook_queue: success: ' . $j);
1108 remove_queue_item($x['id']);
1111 logger('facebook_queue: failed: ' . $j);
1112 update_queue_time($x['id']);
1119 function fb_consume_all($uid) {
1121 require_once('include/items.php');
1123 $access_token = get_pconfig($uid,'facebook','access_token');
1127 if(! get_pconfig($uid,'facebook','no_wall')) {
1128 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
1129 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
1131 $j = json_decode($s);
1132 if (isset($j->data)) {
1133 logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA);
1134 fb_consume_stream($uid,$j,($private_wall) ? false : true);
1136 logger('fb_consume_stream: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1140 $s = fetch_url('https://graph.facebook.com/me/home?access_token=' . $access_token);
1142 $j = json_decode($s);
1143 if (isset($j->data)) {
1144 logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA);
1145 fb_consume_stream($uid,$j,false);
1147 logger('fb_consume_stream: feed: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1153 function fb_get_photo($uid,$link) {
1154 $access_token = get_pconfig($uid,'facebook','access_token');
1155 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1156 return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1157 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1159 $photo_id = $match[1];
1160 $x = fetch_url('https://graph.facebook.com/' . $photo_id . '?access_token=' . $access_token);
1161 $j = json_decode($x);
1163 return "\n\n" . '[url=' . $link . '][img]' . $j->picture . '[/img][/url]';
1165 return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1168 function fb_consume_stream($uid,$j,$wall = false) {
1173 $user = q("SELECT * FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
1179 $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1181 $no_linking = get_pconfig($uid,'facebook','no_linking');
1185 $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
1189 $blocked_apps = get_pconfig($uid,'facebook','blocked_apps');
1190 $blocked_apps_arr = explode(',',$blocked_apps);
1192 $self_id = get_pconfig($uid,'facebook','self_id');
1193 if(! count($j->data) || (! strlen($self_id)))
1196 foreach($j->data as $entry) {
1197 logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA);
1198 $datarray = array();
1200 $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1",
1201 dbesc('fb::' . $entry->id),
1202 dbesc('fb::' . $entry->id),
1206 $post_exists = true;
1208 $top_item = $r[0]['id'];
1211 $post_exists = false;
1216 $datarray['gravity'] = 0;
1217 $datarray['uid'] = $uid;
1218 $datarray['wall'] = (($wall) ? 1 : 0);
1219 $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id;
1220 $from = $entry->from;
1221 if($from->id == $self_id)
1222 $datarray['contact-id'] = $self[0]['id'];
1224 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1229 $datarray['contact-id'] = $r[0]['id'];
1232 // don't store post if we don't have a contact
1234 if(! x($datarray,'contact-id')) {
1235 logger('no contact: post ignored');
1239 $datarray['verb'] = ACTIVITY_POST;
1241 $datarray['owner-name'] = $self[0]['name'];
1242 $datarray['owner-link'] = $self[0]['url'];
1243 $datarray['owner-avatar'] = $self[0]['thumb'];
1245 if(isset($entry->application) && isset($entry->application->name) && strlen($entry->application->name))
1246 $datarray['app'] = strip_tags($entry->application->name);
1248 $datarray['app'] = 'facebook';
1250 $found_blocked = false;
1252 if(count($blocked_apps_arr)) {
1253 foreach($blocked_apps_arr as $bad_appl) {
1254 if(strlen(trim($bad_appl)) && (stristr($datarray['app'],trim($bad_appl)))) {
1255 $found_blocked = true;
1260 if($found_blocked) {
1261 logger('facebook: blocking application: ' . $datarray['app']);
1265 $datarray['author-name'] = $from->name;
1266 $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id;
1267 $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture';
1268 $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1);
1270 $datarray['body'] = escape_tags($entry->message);
1272 if($entry->picture && $entry->link) {
1273 $datarray['body'] .= "\n\n" . '[url=' . $entry->link . '][img]' . $entry->picture . '[/img][/url]';
1277 $datarray['body'] .= "\n\n" . '[img]' . $entry->picture . '[/img]';
1278 // if just a link, it may be a wall photo - check
1280 $datarray['body'] .= fb_get_photo($uid,$entry->link);
1283 $datarray['body'] .= "\n" . $entry->name;
1285 $datarray['body'] .= "\n" . $entry->caption;
1286 if($entry->description)
1287 $datarray['body'] .= "\n" . $entry->description;
1288 $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time);
1289 $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time);
1291 // If the entry has a privacy policy, we cannot assume who can or cannot see it,
1292 // as the identities are from a foreign system. Mark it as private to the owner.
1294 if($entry->privacy && $entry->privacy->value !== 'EVERYONE') {
1295 $datarray['private'] = 1;
1296 $datarray['allow_cid'] = '<' . $self[0]['id'] . '>';
1299 if(trim($datarray['body']) == '') {
1300 logger('facebook: empty body');
1304 $top_item = item_store($datarray);
1305 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1311 logger('fb: new top level item posted');
1315 if(isset($entry->likes) && isset($entry->likes->data))
1316 $likers = $entry->likes->data;
1320 if(isset($entry->comments) && isset($entry->comments->data))
1321 $comments = $entry->comments->data;
1325 if(is_array($likers)) {
1326 foreach($likers as $likes) {
1331 // If we posted the like locally, it will be found with our url, not the FB url.
1333 $second_url = (($likes->id == $self_id) ? $self[0]['url'] : 'http://facebook.com/profile.php?id=' . $likes->id);
1335 $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s'
1336 AND ( `author-link` = '%s' OR `author-link` = '%s' ) LIMIT 1",
1337 dbesc($orig_post['uri']),
1339 dbesc(ACTIVITY_LIKE),
1340 dbesc('http://facebook.com/profile.php?id=' . $likes->id),
1347 $likedata = array();
1348 $likedata['parent'] = $top_item;
1349 $likedata['verb'] = ACTIVITY_LIKE;
1350 $likedata['gravity'] = 3;
1351 $likedata['uid'] = $uid;
1352 $likedata['wall'] = (($wall) ? 1 : 0);
1353 $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid);
1354 $likedata['parent-uri'] = $orig_post['uri'];
1355 if($likes->id == $self_id)
1356 $likedata['contact-id'] = $self[0]['id'];
1358 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1363 $likedata['contact-id'] = $r[0]['id'];
1365 if(! x($likedata,'contact-id'))
1366 $likedata['contact-id'] = $orig_post['contact-id'];
1368 $likedata['app'] = 'facebook';
1369 $likedata['verb'] = ACTIVITY_LIKE;
1370 $likedata['author-name'] = $likes->name;
1371 $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id;
1372 $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture';
1374 $author = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]';
1375 $objauthor = '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]';
1376 $post_type = t('status');
1377 $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]';
1378 $likedata['object-type'] = ACTIVITY_OBJ_NOTE;
1380 $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink);
1381 $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' .
1382 '<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>';
1384 $item = item_store($likedata);
1387 if(is_array($comments)) {
1388 foreach($comments as $cmnt) {
1393 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1",
1395 dbesc('fb::' . $cmnt->id),
1396 dbesc('fb::' . $cmnt->id)
1401 $cmntdata = array();
1402 $cmntdata['parent'] = $top_item;
1403 $cmntdata['verb'] = ACTIVITY_POST;
1404 $cmntdata['gravity'] = 6;
1405 $cmntdata['uid'] = $uid;
1406 $cmntdata['wall'] = (($wall) ? 1 : 0);
1407 $cmntdata['uri'] = 'fb::' . $cmnt->id;
1408 $cmntdata['parent-uri'] = $orig_post['uri'];
1409 if($cmnt->from->id == $self_id) {
1410 $cmntdata['contact-id'] = $self[0]['id'];
1413 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1",
1414 dbesc($cmnt->from->id),
1418 $cmntdata['contact-id'] = $r[0]['id'];
1419 if($r[0]['blocked'] || $r[0]['readonly'])
1423 if(! x($cmntdata,'contact-id'))
1424 $cmntdata['contact-id'] = $orig_post['contact-id'];
1426 $cmntdata['app'] = 'facebook';
1427 $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1428 $cmntdata['edited'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1429 $cmntdata['verb'] = ACTIVITY_POST;
1430 $cmntdata['author-name'] = $cmnt->from->name;
1431 $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id;
1432 $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture';
1433 $cmntdata['body'] = $cmnt->message;
1434 $item = item_store($cmntdata);
1436 $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
1437 dbesc($orig_post['uri']),
1441 if(count($myconv)) {
1442 $importer_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1444 foreach($myconv as $conv) {
1446 // now if we find a match, it means we're in this conversation
1448 if(! link_compare($conv['author-link'],$importer_url))
1451 require_once('include/enotify.php');
1453 $conv_parent = $conv['parent'];
1456 'type' => NOTIFY_COMMENT,
1457 'notify_flags' => $user[0]['notify-flags'],
1458 'language' => $user[0]['language'],
1459 'to_name' => $user[0]['username'],
1460 'to_email' => $user[0]['email'],
1461 'uid' => $user[0]['uid'],
1462 'item' => $cmntdata,
1463 'link' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $item,
1464 'source_name' => $cmntdata['author-name'],
1465 'source_link' => $cmntdata['author-link'],
1466 'source_photo' => $cmntdata['author-avatar'],
1467 'verb' => ACTIVITY_POST,
1469 'parent' => $conv_parent,
1472 // only send one notification
1482 function fb_get_app_access_token() {
1484 $acc_token = get_config('facebook','app_access_token');
1486 if ($acc_token !== false) return $acc_token;
1488 $appid = get_config('facebook','appid');
1489 $appsecret = get_config('facebook', 'appsecret');
1491 if ($appid === false || $appsecret === false) {
1492 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
1496 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . "&grant_type=client_credentials");
1498 if(strpos($x,'access_token=') !== false) {
1499 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
1501 $token = str_replace('access_token=', '', $x);
1502 if(strpos($token,'&') !== false)
1503 $token = substr($token,0,strpos($token,'&'));
1506 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
1509 set_config('facebook','app_access_token',$token);
1512 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
1517 function facebook_subscription_del_users() {
1519 $access_token = fb_get_app_access_token();
1521 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1522 facebook_delete_url($url);
1524 del_config('facebook', 'realtime_active');
1527 function facebook_subscription_add_users() {
1530 $access_token = fb_get_app_access_token();
1532 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1534 list($usec, $sec) = explode(" ", microtime());
1535 $verify_token = sha1($usec . $sec . rand(0, 999999999));
1536 set_config('facebook', 'cb_verify_token', $verify_token);
1538 $cb = $a->get_baseurl() . '/facebook/?realtime_cb=1';
1540 $j = post_url($url,array(
1542 "fields" => "feed,friends",
1543 "callback_url" => $cb,
1544 "verify_token" => $verify_token,
1546 del_config('facebook', 'cb_verify_token');
1549 logger("Facebook reponse: " . $j, LOGGER_DATA);
1551 if (facebook_check_realtime_active()) set_config('facebook', 'realtime_active', 1);
1555 function facebook_subscriptions_get() {
1557 $access_token = fb_get_app_access_token();
1558 if (!$access_token) return null;
1560 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1561 $j = fetch_url($url);
1564 $x = json_decode($j);
1565 if (isset($x->data)) $ret = $x->data;
1571 function facebook_check_realtime_active() {
1572 $ret = facebook_subscriptions_get();
1573 if (is_null($ret)) return false;
1574 if (is_array($ret)) foreach ($ret as $re) if (is_object($re) && $re->object == "user") return true;
1581 // DELETE-request to $url
1583 if(! function_exists('facebook_delete_url')) {
1584 function facebook_delete_url($url,$headers = null, &$redirects = 0, $timeout = 0) {
1586 $ch = curl_init($url);
1587 if(($redirects > 8) || (! $ch))
1590 curl_setopt($ch, CURLOPT_HEADER, true);
1591 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
1592 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
1593 curl_setopt($ch, CURLOPT_USERAGENT, "Friendica");
1595 if(intval($timeout)) {
1596 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
1599 $curl_time = intval(get_config('system','curl_timeout'));
1600 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
1603 if(defined('LIGHTTPD')) {
1604 if(!is_array($headers)) {
1605 $headers = array('Expect:');
1607 if(!in_array('Expect:', $headers)) {
1608 array_push($headers, 'Expect:');
1613 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
1615 $check_cert = get_config('system','verifyssl');
1616 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
1617 $prx = get_config('system','proxy');
1619 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
1620 curl_setopt($ch, CURLOPT_PROXY, $prx);
1621 $prxusr = get_config('system','proxyuser');
1623 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
1626 $a->set_curl_code(0);
1628 // don't let curl abort the entire application
1629 // if it throws any errors.
1631 $s = @curl_exec($ch);
1634 $curl_info = curl_getinfo($ch);
1635 $http_code = $curl_info['http_code'];
1639 // Pull out multiple headers, e.g. proxy and continuation headers
1640 // allow for HTTP/2.x without fixing code
1642 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
1643 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
1645 $base = substr($base,strlen($chunk));
1648 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
1650 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
1651 $url = trim(array_pop($matches));
1652 $url_parsed = @parse_url($url);
1653 if (isset($url_parsed)) {
1655 return delete_url($url,$headers,$redirects,$timeout);
1658 $a->set_curl_code($http_code);
1659 $body = substr($s,strlen($header));
1661 $a->set_curl_headers($header);