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. Visit the Facebook Settings section of the "Settings->Plugin Settings" page.
29 * and click 'Install Facebook Connector'.
30 * 3. Visit the Facebook Settings section of the "Settings->Plugin Settings" page.
31 * and click 'Install Facebook Connector'.
32 * 4. This will ask you to login to Facebook and grant permission to the
33 * plugin to do its stuff. Allow it to do so.
34 * 5. Optional step: If you want to use Facebook Real Time Updates (so new messages
35 * and new contacts are added ~1min after they are postet / added on FB), go to
36 * Settings -> plugins -> facebook and press the "Activate Real-Time Updates"-button.
37 * 6. You're done. To turn it off visit the Plugin Settings page again and
38 * 'Remove Facebook posting'.
40 * Vidoes and embeds will not be posted if there is no other content. Links
41 * and images will be converted to a format suitable for the Facebook API and
42 * long posts truncated - with a link to view the full post.
44 * Facebook contacts will not be able to view private photos, as they are not able to
45 * authenticate to your site to establish identity. We will address this
46 * in a future release.
50 * - Implement a method for the administrator to delete all configuration data the plugin has created,
51 * e.g. the app_access_token
54 // Size of maximum post length increased
55 // see http://www.facebook.com/schrep/posts/203969696349811
56 // define('FACEBOOK_MAXPOSTLEN', 420);
57 define('FACEBOOK_MAXPOSTLEN', 63206);
58 define('FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL', 259200); // 3 days
59 define('FACEBOOK_DEFAULT_POLL_INTERVAL', 60); // given in minutes
60 define('FACEBOOK_MIN_POLL_INTERVAL', 5);
63 function facebook_install() {
64 register_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
65 register_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
66 register_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
67 register_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
68 register_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
69 register_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
70 register_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
74 function facebook_uninstall() {
75 unregister_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
76 unregister_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
77 unregister_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
78 unregister_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
79 unregister_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
80 unregister_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
81 unregister_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
84 unregister_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook');
85 unregister_hook('plugin_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
89 /* declare the facebook_module function so that /facebook url requests will land here */
91 function facebook_module() {}
95 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
96 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
98 function facebook_init(&$a) {
100 if (x($_REQUEST, "realtime_cb") && x($_REQUEST, "realtime_cb")) {
101 logger("facebook_init: Facebook Real-Time callback called", LOGGER_DEBUG);
103 if (x($_REQUEST, "hub_verify_token")) {
104 // this is the verification callback while registering for real time updates
106 $verify_token = get_config('facebook', 'cb_verify_token');
107 if ($verify_token != $_REQUEST["hub_verify_token"]) {
108 logger('facebook_init: Wrong Facebook Callback Verifier - expected ' . $verify_token . ', got ' . $_REQUEST["hub_verify_token"]);
112 if (x($_REQUEST, "hub_challenge")) {
113 logger('facebook_init: Answering Challenge: ' . $_REQUEST["hub_challenge"], LOGGER_DATA);
114 echo $_REQUEST["hub_challenge"];
119 require_once('include/items.php');
121 // this is a status update
122 $content = file_get_contents("php://input");
123 if (is_numeric($content)) $content = file_get_contents("php://input");
124 $js = json_decode($content);
125 logger(print_r($js, true), LOGGER_DATA);
127 if (!isset($js->object) || $js->object != "user" || !isset($js->entry)) {
128 logger('facebook_init: Could not parse Real-Time Update data', LOGGER_DEBUG);
132 $affected_users = array("feed" => array(), "friends" => array());
134 foreach ($js->entry as $entry) {
135 $fbuser = $entry->uid;
136 foreach ($entry->changed_fields as $field) {
137 if (!isset($affected_users[$field])) {
138 logger('facebook_init: Unknown field "' . $field . '"');
141 if (in_array($fbuser, $affected_users[$field])) continue;
143 $r = q("SELECT `uid` FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'self_id' AND `v` = '%s' LIMIT 1", dbesc($fbuser));
148 $access_token = get_pconfig($uid,'facebook','access_token');
154 logger('facebook_init: FB-User ' . $fbuser . ' / feed', LOGGER_DEBUG);
156 if(! get_pconfig($uid,'facebook','no_wall')) {
157 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
158 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
160 $j = json_decode($s);
161 if (isset($j->data)) {
162 logger('facebook_init: wall: ' . print_r($j,true), LOGGER_DATA);
163 fb_consume_stream($uid,$j,($private_wall) ? false : true);
165 logger('facebook_init: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
172 logger('facebook_init: FB-User ' . $fbuser . ' / friends', LOGGER_DEBUG);
174 fb_get_friends($uid, false);
175 set_pconfig($uid,'facebook','friend_check',time());
178 logger('facebook_init: Unknown callback field for ' . $fbuser, LOGGER_NORMAL);
180 $affected_users[$field][] = $fbuser;
190 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
197 $auth_code = (x($_GET, 'code') ? $_GET['code'] : '');
198 $error = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
202 logger('facebook_init: Error: ' . $error);
204 if($auth_code && $uid) {
206 $appid = get_config('facebook','appid');
207 $appsecret = get_config('facebook', 'appsecret');
209 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
210 . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
211 . urlencode($a->get_baseurl() . '/facebook/' . $nick)
212 . '&code=' . $auth_code);
214 logger('facebook_init: returned access token: ' . $x, LOGGER_DATA);
216 if(strpos($x,'access_token=') !== false) {
217 $token = str_replace('access_token=', '', $x);
218 if(strpos($token,'&') !== false)
219 $token = substr($token,0,strpos($token,'&'));
220 set_pconfig($uid,'facebook','access_token',$token);
221 set_pconfig($uid,'facebook','post','1');
222 if(get_pconfig($uid,'facebook','no_linking') === false)
223 set_pconfig($uid,'facebook','no_linking',1);
225 fb_get_friends($uid, true);
226 fb_consume_all($uid);
235 function fb_get_self($uid) {
236 $access_token = get_pconfig($uid,'facebook','access_token');
239 $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
241 $j = json_decode($s);
242 set_pconfig($uid,'facebook','self_id',(string) $j->id);
246 function fb_get_friends_sync_new($uid, $access_token, $person) {
247 $link = 'http://facebook.com/profile.php?id=' . $person->id;
249 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
254 if (count($r) == 0) {
255 logger('fb_get_friends: new contact found: ' . $link, LOGGER_DEBUG);
257 fb_get_friends_sync_full($uid, $access_token, $person);
261 function fb_get_friends_sync_full($uid, $access_token, $person) {
262 $s = fetch_url('https://graph.facebook.com/' . $person->id . '?access_token=' . $access_token);
264 $jp = json_decode($s);
265 logger('fb_get_friends: info: ' . print_r($jp,true), LOGGER_DATA);
267 // always use numeric link for consistency
269 $jp->link = 'http://facebook.com/profile.php?id=' . $person->id;
271 // check if we already have a contact
273 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
280 // check that we have all the photos, this has been known to fail on occasion
282 if((! $r[0]['photo']) || (! $r[0]['thumb']) || (! $r[0]['micro'])) {
283 require_once("Photo.php");
285 $photos = import_profile_photo('https://graph.facebook.com/' . $jp->id . '/picture', $uid, $r[0]['id']);
287 $r = q("UPDATE `contact` SET `photo` = '%s',
293 WHERE `id` = %d LIMIT 1
298 dbesc(datetime_convert()),
299 dbesc(datetime_convert()),
300 dbesc(datetime_convert()),
308 // create contact record
309 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `addr`, `alias`, `notify`, `poll`,
310 `name`, `nick`, `photo`, `network`, `rel`, `priority`,
311 `writable`, `blocked`, `readonly`, `pending` )
312 VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
314 dbesc(datetime_convert()),
316 dbesc(normalise_link($jp->link)),
320 dbesc('facebook ' . $jp->id),
322 dbesc(($jp->nickname) ? $jp->nickname : strtolower($jp->first_name)),
323 dbesc('https://graph.facebook.com/' . $jp->id . '/picture'),
324 dbesc(NETWORK_FACEBOOK),
325 intval(CONTACT_IS_FRIEND),
331 $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
341 $contact_id = $r[0]['id'];
343 require_once("Photo.php");
345 $photos = import_profile_photo($r[0]['photo'],$uid,$contact_id);
347 $r = q("UPDATE `contact` SET `photo` = '%s',
353 WHERE `id` = %d LIMIT 1
358 dbesc(datetime_convert()),
359 dbesc(datetime_convert()),
360 dbesc(datetime_convert()),
367 // if $fullsync is true, only new contacts are searched for
369 function fb_get_friends($uid, $fullsync = true) {
371 $r = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
377 $access_token = get_pconfig($uid,'facebook','access_token');
379 $no_linking = get_pconfig($uid,'facebook','no_linking');
385 $s = fetch_url('https://graph.facebook.com/me/friends?access_token=' . $access_token);
387 logger('facebook: fb_get_friends: ' . $s, LOGGER_DATA);
388 $j = json_decode($s);
389 logger('facebook: fb_get_friends: json: ' . print_r($j,true), LOGGER_DATA);
392 foreach($j->data as $person)
394 fb_get_friends_sync_full($uid, $access_token, $person);
396 fb_get_friends_sync_new($uid, $access_token, $person);
400 // This is the POST method to the facebook settings page
401 // Content is posted to Facebook in the function facebook_post_hook()
403 function facebook_post(&$a) {
408 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
409 set_pconfig($uid,'facebook','post_by_default', $value);
411 $no_linking = get_pconfig($uid,'facebook','no_linking');
413 $no_wall = ((x($_POST,'facebook_no_wall')) ? intval($_POST['facebook_no_wall']) : 0);
414 set_pconfig($uid,'facebook','no_wall',$no_wall);
416 $private_wall = ((x($_POST,'facebook_private_wall')) ? intval($_POST['facebook_private_wall']) : 0);
417 set_pconfig($uid,'facebook','private_wall',$private_wall);
420 set_pconfig($uid,'facebook','blocked_apps',escape_tags(trim($_POST['blocked_apps'])));
422 $linkvalue = ((x($_POST,'facebook_linking')) ? intval($_POST['facebook_linking']) : 0);
423 set_pconfig($uid,'facebook','no_linking', (($linkvalue) ? 0 : 1));
425 // FB linkage was allowed but has just been turned off - remove all FB contacts and posts
427 if((! intval($no_linking)) && (! intval($linkvalue))) {
428 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' ",
430 dbesc(NETWORK_FACEBOOK)
433 require_once('include/Contact.php');
435 contact_remove($rr['id']);
438 elseif(intval($no_linking) && intval($linkvalue)) {
439 // FB linkage is now allowed - import stuff.
441 fb_get_friends($uid, true);
442 fb_consume_all($uid);
445 info( t('Settings updated.') . EOL);
451 // Facebook settings form
453 function facebook_content(&$a) {
456 notice( t('Permission denied.') . EOL);
460 if($a->argc > 1 && $a->argv[1] === 'remove') {
461 del_pconfig(local_user(),'facebook','post');
462 info( t('Facebook disabled') . EOL);
465 if($a->argc > 1 && $a->argv[1] === 'friends') {
466 fb_get_friends(local_user(), true);
467 info( t('Updating contacts') . EOL);
472 $fb_installed = false;
473 if (get_pconfig(local_user(),'facebook','post')) {
474 $access_token = get_pconfig(local_user(),'facebook','access_token');
476 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
477 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
479 $j = json_decode($s);
480 if (isset($j->data)) $fb_installed = true;
485 $appid = get_config('facebook','appid');
488 notice( t('Facebook API key is missing.') . EOL);
492 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
493 . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n";
495 $o .= '<h3>' . t('Facebook Connect') . '</h3>';
497 if(! $fb_installed) {
498 $o .= '<div id="facebook-enable-wrapper">';
500 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
501 . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>';
506 $o .= '<div id="facebook-disable-wrapper">';
508 $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>';
510 $o .= '<div id="facebook-enable-wrapper">';
512 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
513 . $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>';
516 $o .= '<div id="facebook-post-default-form">';
517 $o .= '<form action="facebook" method="post" >';
518 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
519 $checked = (($post_by_default) ? ' checked="checked" ' : '');
520 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
522 $no_linking = get_pconfig(local_user(),'facebook','no_linking');
523 $checked = (($no_linking) ? '' : ' checked="checked" ');
524 $o .= '<input type="checkbox" name="facebook_linking" value="1"' . $checked . '/>' . ' ' . t('Link all your Facebook friends and conversations on this website') . EOL ;
526 $o .= '<p>' . t('Facebook conversations consist of your <em>profile wall</em> and your friend <em>stream</em>.');
527 $o .= ' ' . t('On this website, your Facebook friend stream is only visible to you.');
528 $o .= ' ' . t('The following settings determine the privacy of your Facebook profile wall on this website.') . '</p>';
530 $private_wall = get_pconfig(local_user(),'facebook','private_wall');
531 $checked = (($private_wall) ? ' checked="checked" ' : '');
532 $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 ;
535 $no_wall = get_pconfig(local_user(),'facebook','no_wall');
536 $checked = (($no_wall) ? ' checked="checked" ' : '');
537 $o .= '<input type="checkbox" name="facebook_no_wall" value="1"' . $checked . '/>' . ' ' . t('Do not import your Facebook profile wall conversations') . EOL ;
539 $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>';
542 $blocked_apps = get_pconfig(local_user(),'facebook','blocked_apps');
544 $o .= '<div><label id="blocked-apps-label" for="blocked-apps">' . t('Comma separated applications to ignore') . ' </label></div>';
545 $o .= '<div><textarea id="blocked-apps" name="blocked_apps" >' . htmlspecialchars($blocked_apps) . '</textarea></div>';
547 $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
555 function facebook_cron($a,$b) {
557 $last = get_config('facebook','last_poll');
559 $poll_interval = intval(get_config('facebook','poll_interval'));
561 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
564 $next = $last + $poll_interval;
569 logger('facebook_cron');
572 // Find the FB users on this site and randomize in case one of them
573 // uses an obscene amount of memory. It may kill this queue run
574 // but hopefully we'll get a few others through on each run.
576 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' ORDER BY RAND() ");
579 if(get_pconfig($rr['uid'],'facebook','no_linking'))
581 $ab = intval(get_config('system','account_abandon_days'));
583 $z = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY LIMIT 1",
591 // check for new friends once a day
592 $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check');
593 if($last_friend_check)
594 $next_friend_check = $last_friend_check + 86400;
595 if($next_friend_check <= time()) {
596 fb_get_friends($rr['uid'], true);
597 set_pconfig($rr['uid'],'facebook','friend_check',time());
599 fb_consume_all($rr['uid']);
603 if (get_config('facebook', 'realtime_active') == 1) {
604 if (!facebook_check_realtime_active()) {
606 logger('facebook_cron: Facebook is not sending Real-Time Updates any more, although it is supposed to. Trying to fix it...', LOGGER_NORMAL);
607 facebook_subscription_add_users();
609 if (facebook_check_realtime_active())
610 logger('facebook_cron: Successful', LOGGER_NORMAL);
612 logger('facebook_cron: Failed', LOGGER_NORMAL);
614 if(strlen($a->config['admin_email']) && !get_config('facebook', 'realtime_err_mailsent')) {
615 $res = mail($a->config['admin_email'], t('Problems with Facebook Real-Time Updates'),
616 "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.",
617 'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
618 . 'Content-type: text/plain; charset=UTF-8' . "\n"
619 . 'Content-transfer-encoding: 8bit'
622 set_config('facebook', 'realtime_err_mailsent', 1);
625 } else { // !facebook_check_realtime_active()
626 del_config('facebook', 'realtime_err_mailsent');
630 set_config('facebook','last_poll', time());
636 function facebook_plugin_settings(&$a,&$b) {
638 $b .= '<div class="settings-block">';
639 $b .= '<h3>' . t('Facebook') . '</h3>';
640 $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />';
646 function facebook_plugin_admin(&$a, &$o){
647 $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
649 $o .= '<h4>' . t('Facebook API Key') . '</h4>';
651 $appid = get_config('facebook', 'appid' );
652 $appsecret = get_config('facebook', 'appsecret' );
653 $poll_interval = get_config('facebook', 'poll_interval' );
654 if (!$poll_interval) $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
656 $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
657 $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
658 if ((count($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>');
660 $working_connection = false;
661 if ($appid && $appsecret) {
662 $subs = facebook_subscriptions_get();
663 if ($subs === null) $o .= t('Error: the given API Key seems to be incorrect (the application access token could not be retrieved).') . '<br>';
664 elseif (is_array($subs)) {
665 $o .= t('The given API Key seems to work correctly.') . '<br>';
666 $working_connection = true;
667 } else $o .= t('The correctness of the API Key could not be detected. Somthing strange\'s going on.') . '<br>';
670 $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
671 $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
672 $o .= '<label for="fb_poll_interval">' . sprintf(t('Polling Interval (min. %1$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;">';
673 $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
675 if ($working_connection) {
676 $o .= '<h4>' . t('Real-Time Updates') . '</h4>';
678 $activated = facebook_check_realtime_active();
680 $o .= t('Real-Time Updates are activated.') . '<br><br>';
681 $o .= '<input type="submit" name="real_time_deactivate" value="' . t('Deactivate Real-Time Updates') . '">';
683 $o .= t('Real-Time Updates not activated.') . '<br><input type="submit" name="real_time_activate" value="' . t('Activate Real-Time Updates') . '">';
688 function facebook_plugin_admin_post(&$a, &$o){
689 check_form_security_token_redirectOnErr('/admin/plugins/facebook', 'fbsave');
691 if (x($_REQUEST,'fb_save_keys')) {
692 set_config('facebook', 'appid', $_REQUEST['appid']);
693 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
694 $poll_interval = IntVal($_REQUEST['poll_interval']);
695 if ($poll_interval >= FACEBOOK_MIN_POLL_INTERVAL) set_config('facebook', 'poll_interval', $poll_interval);
696 del_config('facebook', 'app_access_token');
697 info(t('The new values have been saved.'));
699 if (x($_REQUEST,'real_time_activate')) {
700 facebook_subscription_add_users();
702 if (x($_REQUEST,'real_time_deactivate')) {
703 facebook_subscription_del_users();
707 function facebook_jot_nets(&$a,&$b) {
711 $fb_post = get_pconfig(local_user(),'facebook','post');
712 if(intval($fb_post) == 1) {
713 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
714 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
715 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
716 . t('Post to Facebook') . '</div>';
721 function facebook_post_hook(&$a,&$b) {
724 if($b['deleted'] || ($b['created'] !== $b['edited']))
728 * Post to Facebook stream
731 require_once('include/group.php');
732 require_once('include/html2plain.php');
734 logger('Facebook post');
739 $toplevel = (($b['id'] == $b['parent']) ? true : false);
742 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
744 if((! $toplevel) && ($linking)) {
745 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
746 intval($b['parent']),
749 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
750 $reply = substr($r[0]['uri'],4);
751 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
752 $reply = substr($r[0]['extid'],4);
756 $u = q("SELECT * FROM user where uid = %d limit 1",
762 // only accept comments from the item owner. Other contacts are unknown to FB.
764 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
768 logger('facebook reply id=' . $reply);
771 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
773 if($b['private'] && $reply === false) {
774 $allow_people = expand_acl($b['allow_cid']);
775 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
776 $deny_people = expand_acl($b['deny_cid']);
777 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
779 $recipients = array_unique(array_merge($allow_people,$allow_groups));
780 $deny = array_unique(array_merge($deny_people,$deny_groups));
782 $allow_str = dbesc(implode(', ',$recipients));
784 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
785 $allow_arr = array();
788 $allow_arr[] = $rr['notify'];
791 $deny_str = dbesc(implode(', ',$deny));
793 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
797 $deny_arr[] = $rr['notify'];
800 if(count($deny_arr) && (! count($allow_arr))) {
802 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
803 // This might cause the post to be open to public on Facebook, but only to selected members
804 // on another network. Since this could potentially leak a post to somebody who was denied,
805 // we will skip posting it to Facebook with a slightly vague but relevant message that will
806 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
808 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
813 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
815 if((! count($allow_arr)) && (! count($deny_arr)))
819 if($b['verb'] == ACTIVITY_LIKE)
823 $appid = get_config('facebook', 'appid' );
824 $secret = get_config('facebook', 'appsecret' );
826 if($appid && $secret) {
828 logger('facebook: have appid+secret');
830 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
833 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
834 // or it's a private message with facebook participants
835 // or it's a reply or likes action to an existing facebook post
837 if($fb_token && ($toplevel || $b['private'] || $reply)) {
838 logger('facebook: able to post');
839 require_once('library/facebook.php');
840 require_once('include/bbcode.php');
844 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
846 // make links readable before we strip the code
848 // unless it's a dislike - just send the text as a comment
850 if($b['verb'] == ACTIVITY_DISLIKE)
851 $msg = trim(strip_tags(bbcode($msg)));
854 /*$search_str = $a->get_baseurl() . '/search';
856 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
858 // don't use hashtags for message link
860 if(strpos($matches[2],$search_str) === false) {
862 if(substr($matches[2],0,5) != '[img]')
863 $linkname = $matches[2];
867 // strip tag links to avoid link clutter, this really should be
868 // configurable because we're losing information
870 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
872 // provide the link separately for normal links
873 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
875 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
876 $image = $matches[1];
878 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
880 if((strpos($link,z_root()) !== false) && (! $image))
881 $image = $a->get_baseurl() . '/images/friendica-64.jpg';
883 $msg = trim(strip_tags(bbcode($msg)));*/
887 // Looking for the first image
889 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
890 $image = $matches[3];
893 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
894 $image = $matches[1];
896 // Checking for a bookmark element
898 if (strpos($body, "[bookmark") !== false) {
899 // splitting the text in two parts:
900 // before and after the bookmark
901 $pos = strpos($body, "[bookmark");
902 $body1 = substr($body, 0, $pos);
903 $body2 = substr($body, $pos);
905 // Removing the bookmark and all quotes after the bookmark
906 // they are mostly only the content after the bookmark.
907 $body2 = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'',$body2);
908 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
909 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
911 $body = $body1.$body2;
914 // At first convert the text to html
915 $html = bbcode($body);
917 // Then convert it to plain text
918 $msg = trim($b['title']." \n\n".html2plain($html, 0, true));
919 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
921 // Removing multiple newlines
922 while (strpos($msg, "\n\n\n") !== false)
923 $msg = str_replace("\n\n\n", "\n\n", $msg);
925 // add any attachments as text urls
926 $arr = explode(',',$b['attach']);
930 foreach($arr as $r) {
932 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
934 $msg .= "\n".$matches[1];
941 // look for bookmark-bbcode and handle it with priority
942 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
944 $linkname = $matches[2];
947 // If there is no bookmark element then take the first link
949 $links = collecturls($html);
950 if (sizeof($links) > 0) {
952 $link = current($links);
956 // Remove trailing and leading spaces
959 // Since facebook increased the maxpostlen massively this never should happen again :)
960 if (strlen($msg) > FACEBOOK_MAXPOSTLEN) {
962 require_once('library/slinky.php');
964 $display_url = $b['plink'];
966 $slinky = new Slinky( $display_url );
967 // setup a cascade of shortening services
968 // try to get a short link from these services
969 // in the order ur1.ca, trim, id.gd, tinyurl
970 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
971 $shortlink = $slinky->short();
972 // the new message will be shortened such that "... $shortlink"
973 // will fit into the character limit
974 $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4);
975 $msg .= '... ' . $shortlink;
978 // Fallback - if message is empty
988 // If there is nothing to post then exit
992 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
995 $postvars = array('access_token' => $fb_token);
999 'access_token' => $fb_token,
1003 $postvars['picture'] = $image;
1005 $postvars['link'] = $link;
1006 if(isset($linkname))
1007 $postvars['name'] = $linkname;
1010 if(($b['private']) && ($toplevel)) {
1011 $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
1012 if(count($allow_arr))
1013 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
1014 if(count($deny_arr))
1015 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
1016 $postvars['privacy'] .= '}';
1021 $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
1024 $url = 'https://graph.facebook.com/me/feed';
1026 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' . $b['plink'] . '"}';
1029 logger('facebook: post to ' . $url);
1030 logger('facebook: postvars: ' . print_r($postvars,true));
1032 // "test_mode" prevents anything from actually being posted.
1033 // Otherwise, let's do it.
1035 if(! get_config('facebook','test_mode')) {
1036 $x = post_url($url, $postvars);
1037 logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
1039 $retj = json_decode($x);
1041 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1042 dbesc('fb::' . $retj->id),
1048 $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
1049 require_once('include/queue_fn.php');
1050 add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
1051 notice( t('Facebook post failed. Queued for retry.') . EOL);
1054 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
1055 logger('Facebook session has expired due to changed password.', LOGGER_DEBUG);
1057 $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
1058 if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
1059 require_once('include/enotify.php');
1061 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
1064 'type' => NOTIFY_SYSTEM,
1065 'system_type' => 'facebook_connection_invalid',
1066 'language' => $r[0]['language'],
1067 'to_name' => $r[0]['username'],
1068 'to_email' => $r[0]['email'],
1069 'source_name' => t('Administrator'),
1070 'source_link' => $a->config["system"]["url"],
1071 'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
1074 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
1075 } else logger('Facebook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
1084 function facebook_enotify(&$app, &$data) {
1085 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
1086 $data['itemlink'] = '/facebook';
1087 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
1088 $data['subject'] = t('Facebook connection became invalid');
1089 $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=" . $app->config["system"]["url"] . "/facebook]", "[/url]");
1093 function facebook_post_local(&$a,&$b) {
1095 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
1096 // where we will discover it during background delivery.
1098 // This can only be triggered by a local user posting to their own wall.
1100 if((local_user()) && (local_user() == $b['uid'])) {
1102 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
1103 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
1105 // if API is used, default to the chosen settings
1106 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default')))
1112 if(strlen($b['postopts']))
1113 $b['postopts'] .= ',';
1114 $b['postopts'] .= 'facebook';
1119 function fb_queue_hook(&$a,&$b) {
1121 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
1122 dbesc(NETWORK_FACEBOOK)
1127 require_once('include/queue_fn.php');
1129 foreach($qi as $x) {
1130 if($x['network'] !== NETWORK_FACEBOOK)
1133 logger('facebook_queue: run');
1135 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
1136 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
1144 $appid = get_config('facebook', 'appid' );
1145 $secret = get_config('facebook', 'appsecret' );
1147 if($appid && $secret) {
1148 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
1149 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
1151 if($fb_post && $fb_token) {
1152 logger('facebook_queue: able to post');
1153 require_once('library/facebook.php');
1155 $z = unserialize($x['content']);
1157 $j = post_url($z['url'],$z['post']);
1159 $retj = json_decode($j);
1161 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1162 dbesc('fb::' . $retj->id),
1165 logger('facebook_queue: success: ' . $j);
1166 remove_queue_item($x['id']);
1169 logger('facebook_queue: failed: ' . $j);
1170 update_queue_time($x['id']);
1177 function fb_consume_all($uid) {
1179 require_once('include/items.php');
1181 $access_token = get_pconfig($uid,'facebook','access_token');
1185 if(! get_pconfig($uid,'facebook','no_wall')) {
1186 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
1187 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
1189 $j = json_decode($s);
1190 if (isset($j->data)) {
1191 logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA);
1192 fb_consume_stream($uid,$j,($private_wall) ? false : true);
1194 logger('fb_consume_stream: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1198 $s = fetch_url('https://graph.facebook.com/me/home?access_token=' . $access_token);
1200 $j = json_decode($s);
1201 if (isset($j->data)) {
1202 logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA);
1203 fb_consume_stream($uid,$j,false);
1205 logger('fb_consume_stream: feed: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1211 function fb_get_photo($uid,$link) {
1212 $access_token = get_pconfig($uid,'facebook','access_token');
1213 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1214 return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1215 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1217 $photo_id = $match[1];
1218 $x = fetch_url('https://graph.facebook.com/' . $photo_id . '?access_token=' . $access_token);
1219 $j = json_decode($x);
1221 return "\n\n" . '[url=' . $link . '][img]' . $j->picture . '[/img][/url]';
1223 return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1226 function fb_consume_stream($uid,$j,$wall = false) {
1231 $user = q("SELECT * FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
1237 $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1239 $no_linking = get_pconfig($uid,'facebook','no_linking');
1243 $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
1247 $blocked_apps = get_pconfig($uid,'facebook','blocked_apps');
1248 $blocked_apps_arr = explode(',',$blocked_apps);
1250 $self_id = get_pconfig($uid,'facebook','self_id');
1251 if(! count($j->data) || (! strlen($self_id)))
1254 foreach($j->data as $entry) {
1255 logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA);
1256 $datarray = array();
1258 $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1",
1259 dbesc('fb::' . $entry->id),
1260 dbesc('fb::' . $entry->id),
1264 $post_exists = true;
1266 $top_item = $r[0]['id'];
1269 $post_exists = false;
1274 $datarray['gravity'] = 0;
1275 $datarray['uid'] = $uid;
1276 $datarray['wall'] = (($wall) ? 1 : 0);
1277 $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id;
1278 $from = $entry->from;
1279 if($from->id == $self_id)
1280 $datarray['contact-id'] = $self[0]['id'];
1282 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1287 $datarray['contact-id'] = $r[0]['id'];
1290 // don't store post if we don't have a contact
1292 if(! x($datarray,'contact-id')) {
1293 if (get_config('facebook', 'pages')) {
1294 // If no user is found then post it under the own id.
1295 // Definitely a quickhack
1296 $datarray['contact-id'] = $self[0]['id'];
1298 logger('no contact: post ignored');
1303 $datarray['verb'] = ACTIVITY_POST;
1305 $datarray['owner-name'] = $self[0]['name'];
1306 $datarray['owner-link'] = $self[0]['url'];
1307 $datarray['owner-avatar'] = $self[0]['thumb'];
1309 if(isset($entry->application) && isset($entry->application->name) && strlen($entry->application->name))
1310 $datarray['app'] = strip_tags($entry->application->name);
1312 $datarray['app'] = 'facebook';
1314 $found_blocked = false;
1316 if(count($blocked_apps_arr)) {
1317 foreach($blocked_apps_arr as $bad_appl) {
1318 if(strlen(trim($bad_appl)) && (stristr($datarray['app'],trim($bad_appl)))) {
1319 $found_blocked = true;
1324 if($found_blocked) {
1325 logger('facebook: blocking application: ' . $datarray['app']);
1329 $datarray['author-name'] = $from->name;
1330 $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id;
1331 $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture';
1332 $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1);
1334 $datarray['body'] = escape_tags($entry->message);
1336 if($entry->picture && $entry->link) {
1337 $datarray['body'] .= "\n\n" . '[url=' . $entry->link . '][img]' . $entry->picture . '[/img][/url]';
1341 $datarray['body'] .= "\n\n" . '[img]' . $entry->picture . '[/img]';
1342 // if just a link, it may be a wall photo - check
1344 $datarray['body'] .= fb_get_photo($uid,$entry->link);
1347 $datarray['body'] .= "\n" . $entry->name;
1349 $datarray['body'] .= "\n" . $entry->caption;
1350 if($entry->description)
1351 $datarray['body'] .= "\n" . $entry->description;
1352 $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time);
1353 $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time);
1355 // If the entry has a privacy policy, we cannot assume who can or cannot see it,
1356 // as the identities are from a foreign system. Mark it as private to the owner.
1358 if($entry->privacy && $entry->privacy->value !== 'EVERYONE') {
1359 $datarray['private'] = 1;
1360 $datarray['allow_cid'] = '<' . $self[0]['id'] . '>';
1363 if(trim($datarray['body']) == '') {
1364 logger('facebook: empty body');
1368 $top_item = item_store($datarray);
1369 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1375 logger('fb: new top level item posted');
1379 if(isset($entry->likes) && isset($entry->likes->data))
1380 $likers = $entry->likes->data;
1384 if(isset($entry->comments) && isset($entry->comments->data))
1385 $comments = $entry->comments->data;
1389 if(is_array($likers)) {
1390 foreach($likers as $likes) {
1395 // If we posted the like locally, it will be found with our url, not the FB url.
1397 $second_url = (($likes->id == $self_id) ? $self[0]['url'] : 'http://facebook.com/profile.php?id=' . $likes->id);
1399 $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s'
1400 AND ( `author-link` = '%s' OR `author-link` = '%s' ) LIMIT 1",
1401 dbesc($orig_post['uri']),
1403 dbesc(ACTIVITY_LIKE),
1404 dbesc('http://facebook.com/profile.php?id=' . $likes->id),
1411 $likedata = array();
1412 $likedata['parent'] = $top_item;
1413 $likedata['verb'] = ACTIVITY_LIKE;
1414 $likedata['gravity'] = 3;
1415 $likedata['uid'] = $uid;
1416 $likedata['wall'] = (($wall) ? 1 : 0);
1417 $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid);
1418 $likedata['parent-uri'] = $orig_post['uri'];
1419 if($likes->id == $self_id)
1420 $likedata['contact-id'] = $self[0]['id'];
1422 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1427 $likedata['contact-id'] = $r[0]['id'];
1429 if(! x($likedata,'contact-id'))
1430 $likedata['contact-id'] = $orig_post['contact-id'];
1432 $likedata['app'] = 'facebook';
1433 $likedata['verb'] = ACTIVITY_LIKE;
1434 $likedata['author-name'] = $likes->name;
1435 $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id;
1436 $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture';
1438 $author = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]';
1439 $objauthor = '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]';
1440 $post_type = t('status');
1441 $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]';
1442 $likedata['object-type'] = ACTIVITY_OBJ_NOTE;
1444 $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink);
1445 $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' .
1446 '<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>';
1448 $item = item_store($likedata);
1451 if(is_array($comments)) {
1452 foreach($comments as $cmnt) {
1457 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1",
1459 dbesc('fb::' . $cmnt->id),
1460 dbesc('fb::' . $cmnt->id)
1465 $cmntdata = array();
1466 $cmntdata['parent'] = $top_item;
1467 $cmntdata['verb'] = ACTIVITY_POST;
1468 $cmntdata['gravity'] = 6;
1469 $cmntdata['uid'] = $uid;
1470 $cmntdata['wall'] = (($wall) ? 1 : 0);
1471 $cmntdata['uri'] = 'fb::' . $cmnt->id;
1472 $cmntdata['parent-uri'] = $orig_post['uri'];
1473 if($cmnt->from->id == $self_id) {
1474 $cmntdata['contact-id'] = $self[0]['id'];
1477 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1",
1478 dbesc($cmnt->from->id),
1482 $cmntdata['contact-id'] = $r[0]['id'];
1483 if($r[0]['blocked'] || $r[0]['readonly'])
1487 if(! x($cmntdata,'contact-id'))
1488 $cmntdata['contact-id'] = $orig_post['contact-id'];
1490 $cmntdata['app'] = 'facebook';
1491 $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1492 $cmntdata['edited'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1493 $cmntdata['verb'] = ACTIVITY_POST;
1494 $cmntdata['author-name'] = $cmnt->from->name;
1495 $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id;
1496 $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture';
1497 $cmntdata['body'] = $cmnt->message;
1498 $item = item_store($cmntdata);
1500 $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
1501 dbesc($orig_post['uri']),
1505 if(count($myconv)) {
1506 $importer_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1508 foreach($myconv as $conv) {
1510 // now if we find a match, it means we're in this conversation
1512 if(! link_compare($conv['author-link'],$importer_url))
1515 require_once('include/enotify.php');
1517 $conv_parent = $conv['parent'];
1520 'type' => NOTIFY_COMMENT,
1521 'notify_flags' => $user[0]['notify-flags'],
1522 'language' => $user[0]['language'],
1523 'to_name' => $user[0]['username'],
1524 'to_email' => $user[0]['email'],
1525 'uid' => $user[0]['uid'],
1526 'item' => $cmntdata,
1527 'link' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $item,
1528 'source_name' => $cmntdata['author-name'],
1529 'source_link' => $cmntdata['author-link'],
1530 'source_photo' => $cmntdata['author-avatar'],
1531 'verb' => ACTIVITY_POST,
1533 'parent' => $conv_parent,
1536 // only send one notification
1546 function fb_get_app_access_token() {
1548 $acc_token = get_config('facebook','app_access_token');
1550 if ($acc_token !== false) return $acc_token;
1552 $appid = get_config('facebook','appid');
1553 $appsecret = get_config('facebook', 'appsecret');
1555 if ($appid === false || $appsecret === false) {
1556 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
1559 logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
1560 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
1562 if(strpos($x,'access_token=') !== false) {
1563 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
1565 $token = str_replace('access_token=', '', $x);
1566 if(strpos($token,'&') !== false)
1567 $token = substr($token,0,strpos($token,'&'));
1570 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
1573 set_config('facebook','app_access_token',$token);
1576 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
1581 function facebook_subscription_del_users() {
1583 $access_token = fb_get_app_access_token();
1585 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1586 facebook_delete_url($url);
1588 if (!facebook_check_realtime_active()) del_config('facebook', 'realtime_active');
1591 function facebook_subscription_add_users($second_try = false) {
1593 $access_token = fb_get_app_access_token();
1595 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1597 list($usec, $sec) = explode(" ", microtime());
1598 $verify_token = sha1($usec . $sec . rand(0, 999999999));
1599 set_config('facebook', 'cb_verify_token', $verify_token);
1601 $cb = $a->get_baseurl() . '/facebook/?realtime_cb=1';
1603 $j = post_url($url,array(
1605 "fields" => "feed,friends",
1606 "callback_url" => $cb,
1607 "verify_token" => $verify_token,
1609 del_config('facebook', 'cb_verify_token');
1612 $x = json_decode($j);
1613 logger("Facebook reponse: " . $j, LOGGER_DATA);
1614 if (isset($x->error)) {
1615 logger('facebook_subscription_add_users: got an error: ' . $j);
1616 if ($x->error->type == "OAuthException" && $x->error->code == 190) {
1617 del_config('facebook', 'app_access_token');
1618 if ($second_try === false) facebook_subscription_add_users(true);
1621 logger('facebook_subscription_add_users: sucessful');
1622 if (facebook_check_realtime_active()) set_config('facebook', 'realtime_active', 1);
1627 function facebook_subscriptions_get() {
1629 $access_token = fb_get_app_access_token();
1630 if (!$access_token) return null;
1632 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1633 $j = fetch_url($url);
1636 $x = json_decode($j);
1637 if (isset($x->data)) $ret = $x->data;
1643 function facebook_check_realtime_active() {
1644 $ret = facebook_subscriptions_get();
1645 if (is_null($ret)) return false;
1646 if (is_array($ret)) foreach ($ret as $re) if (is_object($re) && $re->object == "user") return true;
1653 // DELETE-request to $url
1655 if(! function_exists('facebook_delete_url')) {
1656 function facebook_delete_url($url,$headers = null, &$redirects = 0, $timeout = 0) {
1658 $ch = curl_init($url);
1659 if(($redirects > 8) || (! $ch))
1662 curl_setopt($ch, CURLOPT_HEADER, true);
1663 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
1664 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
1665 curl_setopt($ch, CURLOPT_USERAGENT, "Friendica");
1667 if(intval($timeout)) {
1668 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
1671 $curl_time = intval(get_config('system','curl_timeout'));
1672 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
1675 if(defined('LIGHTTPD')) {
1676 if(!is_array($headers)) {
1677 $headers = array('Expect:');
1679 if(!in_array('Expect:', $headers)) {
1680 array_push($headers, 'Expect:');
1685 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
1687 $check_cert = get_config('system','verifyssl');
1688 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
1689 $prx = get_config('system','proxy');
1691 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
1692 curl_setopt($ch, CURLOPT_PROXY, $prx);
1693 $prxusr = get_config('system','proxyuser');
1695 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
1698 $a->set_curl_code(0);
1700 // don't let curl abort the entire application
1701 // if it throws any errors.
1703 $s = @curl_exec($ch);
1706 $curl_info = curl_getinfo($ch);
1707 $http_code = $curl_info['http_code'];
1711 // Pull out multiple headers, e.g. proxy and continuation headers
1712 // allow for HTTP/2.x without fixing code
1714 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
1715 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
1717 $base = substr($base,strlen($chunk));
1720 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
1722 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
1723 $url = trim(array_pop($matches));
1724 $url_parsed = @parse_url($url);
1725 if (isset($url_parsed)) {
1727 return delete_url($url,$headers,$redirects,$timeout);
1730 $a->set_curl_code($http_code);
1731 $body = substr($s,strlen($header));
1733 $a->set_curl_headers($header);