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 define('FACEBOOK_MAXPOSTLEN', 420);
55 define('FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL', 259200); // 3 days
56 define('FACEBOOK_DEFAULT_POLL_INTERVAL', 60); // given in minutes
57 define('FACEBOOK_MIN_POLL_INTERVAL', 5);
59 function facebook_install() {
60 register_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
61 register_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
62 register_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
63 register_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
64 register_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
65 register_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
66 register_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
70 function facebook_uninstall() {
71 unregister_hook('post_local', 'addon/facebook/facebook.php', 'facebook_post_local');
72 unregister_hook('notifier_normal', 'addon/facebook/facebook.php', 'facebook_post_hook');
73 unregister_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets');
74 unregister_hook('connector_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
75 unregister_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron');
76 unregister_hook('enotify', 'addon/facebook/facebook.php', 'facebook_enotify');
77 unregister_hook('queue_predeliver', 'addon/facebook/facebook.php', 'fb_queue_hook');
80 unregister_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook');
81 unregister_hook('plugin_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings');
85 /* declare the facebook_module function so that /facebook url requests will land here */
87 function facebook_module() {}
91 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
92 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
94 function facebook_init(&$a) {
96 if (x($_REQUEST, "realtime_cb") && x($_REQUEST, "realtime_cb")) {
97 logger("facebook_init: Facebook Real-Time callback called", LOGGER_DEBUG);
99 if (x($_REQUEST, "hub_verify_token")) {
100 // this is the verification callback while registering for real time updates
102 $verify_token = get_config('facebook', 'cb_verify_token');
103 if ($verify_token != $_REQUEST["hub_verify_token"]) {
104 logger('facebook_init: Wrong Facebook Callback Verifier - expected ' . $verify_token . ', got ' . $_REQUEST["hub_verify_token"]);
108 if (x($_REQUEST, "hub_challenge")) {
109 logger('facebook_init: Answering Challenge: ' . $_REQUEST["hub_challenge"], LOGGER_DATA);
110 echo $_REQUEST["hub_challenge"];
115 require_once('include/items.php');
117 // this is a status update
118 $content = file_get_contents("php://input");
119 if (is_numeric($content)) $content = file_get_contents("php://input");
120 $js = json_decode($content);
121 logger(print_r($js, true), LOGGER_DATA);
123 if (!isset($js->object) || $js->object != "user" || !isset($js->entry)) {
124 logger('facebook_init: Could not parse Real-Time Update data', LOGGER_DEBUG);
128 $affected_users = array("feed" => array(), "friends" => array());
130 foreach ($js->entry as $entry) {
131 $fbuser = $entry->uid;
132 foreach ($entry->changed_fields as $field) {
133 if (!isset($affected_users[$field])) {
134 logger('facebook_init: Unknown field "' . $field . '"');
137 if (in_array($fbuser, $affected_users[$field])) continue;
139 $r = q("SELECT `uid` FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'self_id' AND `v` = '%s' LIMIT 1", dbesc($fbuser));
144 $access_token = get_pconfig($uid,'facebook','access_token');
150 logger('facebook_init: FB-User ' . $fbuser . ' / feed', LOGGER_DEBUG);
152 if(! get_pconfig($uid,'facebook','no_wall')) {
153 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
154 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
156 $j = json_decode($s);
157 if (isset($j->data)) {
158 logger('facebook_init: wall: ' . print_r($j,true), LOGGER_DATA);
159 fb_consume_stream($uid,$j,($private_wall) ? false : true);
161 logger('facebook_init: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
168 logger('facebook_init: FB-User ' . $fbuser . ' / friends', LOGGER_DEBUG);
170 fb_get_friends($uid, false);
171 set_pconfig($uid,'facebook','friend_check',time());
174 logger('facebook_init: Unknown callback field for ' . $fbuser, LOGGER_NORMAL);
176 $affected_users[$field][] = $fbuser;
186 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
193 $auth_code = (x($_GET, 'code') ? $_GET['code'] : '');
194 $error = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
198 logger('facebook_init: Error: ' . $error);
200 if($auth_code && $uid) {
202 $appid = get_config('facebook','appid');
203 $appsecret = get_config('facebook', 'appsecret');
205 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
206 . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
207 . urlencode($a->get_baseurl() . '/facebook/' . $nick)
208 . '&code=' . $auth_code);
210 logger('facebook_init: returned access token: ' . $x, LOGGER_DATA);
212 if(strpos($x,'access_token=') !== false) {
213 $token = str_replace('access_token=', '', $x);
214 if(strpos($token,'&') !== false)
215 $token = substr($token,0,strpos($token,'&'));
216 set_pconfig($uid,'facebook','access_token',$token);
217 set_pconfig($uid,'facebook','post','1');
218 if(get_pconfig($uid,'facebook','no_linking') === false)
219 set_pconfig($uid,'facebook','no_linking',1);
221 fb_get_friends($uid, true);
222 fb_consume_all($uid);
231 function fb_get_self($uid) {
232 $access_token = get_pconfig($uid,'facebook','access_token');
235 $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
237 $j = json_decode($s);
238 set_pconfig($uid,'facebook','self_id',(string) $j->id);
242 function fb_get_friends_sync_new($uid, $access_token, $person) {
243 $link = 'http://facebook.com/profile.php?id=' . $person->id;
245 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
250 if (count($r) == 0) {
251 logger('fb_get_friends: new contact found: ' . $link, LOGGER_DEBUG);
253 fb_get_friends_sync_full($uid, $access_token, $person);
257 function fb_get_friends_sync_full($uid, $access_token, $person) {
258 $s = fetch_url('https://graph.facebook.com/' . $person->id . '?access_token=' . $access_token);
260 $jp = json_decode($s);
261 logger('fb_get_friends: info: ' . print_r($jp,true), LOGGER_DATA);
263 // always use numeric link for consistency
265 $jp->link = 'http://facebook.com/profile.php?id=' . $person->id;
267 // check if we already have a contact
269 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1",
276 // check that we have all the photos, this has been known to fail on occasion
278 if((! $r[0]['photo']) || (! $r[0]['thumb']) || (! $r[0]['micro'])) {
279 require_once("Photo.php");
281 $photos = import_profile_photo('https://graph.facebook.com/' . $jp->id . '/picture', $uid, $r[0]['id']);
283 $r = q("UPDATE `contact` SET `photo` = '%s',
289 WHERE `id` = %d LIMIT 1
294 dbesc(datetime_convert()),
295 dbesc(datetime_convert()),
296 dbesc(datetime_convert()),
304 // create contact record
305 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `addr`, `alias`, `notify`, `poll`,
306 `name`, `nick`, `photo`, `network`, `rel`, `priority`,
307 `writable`, `blocked`, `readonly`, `pending` )
308 VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
310 dbesc(datetime_convert()),
312 dbesc(normalise_link($jp->link)),
316 dbesc('facebook ' . $jp->id),
318 dbesc(($jp->nickname) ? $jp->nickname : strtolower($jp->first_name)),
319 dbesc('https://graph.facebook.com/' . $jp->id . '/picture'),
320 dbesc(NETWORK_FACEBOOK),
321 intval(CONTACT_IS_FRIEND),
327 $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
337 $contact_id = $r[0]['id'];
339 require_once("Photo.php");
341 $photos = import_profile_photo($r[0]['photo'],$uid,$contact_id);
343 $r = q("UPDATE `contact` SET `photo` = '%s',
349 WHERE `id` = %d LIMIT 1
354 dbesc(datetime_convert()),
355 dbesc(datetime_convert()),
356 dbesc(datetime_convert()),
363 // if $fullsync is true, only new contacts are searched for
365 function fb_get_friends($uid, $fullsync = true) {
367 $r = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
373 $access_token = get_pconfig($uid,'facebook','access_token');
375 $no_linking = get_pconfig($uid,'facebook','no_linking');
381 $s = fetch_url('https://graph.facebook.com/me/friends?access_token=' . $access_token);
383 logger('facebook: fb_get_friends: ' . $s, LOGGER_DATA);
384 $j = json_decode($s);
385 logger('facebook: fb_get_friends: json: ' . print_r($j,true), LOGGER_DATA);
388 foreach($j->data as $person)
390 fb_get_friends_sync_full($uid, $access_token, $person);
392 fb_get_friends_sync_new($uid, $access_token, $person);
396 // This is the POST method to the facebook settings page
397 // Content is posted to Facebook in the function facebook_post_hook()
399 function facebook_post(&$a) {
404 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
405 set_pconfig($uid,'facebook','post_by_default', $value);
407 $no_linking = get_pconfig($uid,'facebook','no_linking');
409 $no_wall = ((x($_POST,'facebook_no_wall')) ? intval($_POST['facebook_no_wall']) : 0);
410 set_pconfig($uid,'facebook','no_wall',$no_wall);
412 $private_wall = ((x($_POST,'facebook_private_wall')) ? intval($_POST['facebook_private_wall']) : 0);
413 set_pconfig($uid,'facebook','private_wall',$private_wall);
416 set_pconfig($uid,'facebook','blocked_apps',escape_tags(trim($_POST['blocked_apps'])));
418 $linkvalue = ((x($_POST,'facebook_linking')) ? intval($_POST['facebook_linking']) : 0);
419 set_pconfig($uid,'facebook','no_linking', (($linkvalue) ? 0 : 1));
421 // FB linkage was allowed but has just been turned off - remove all FB contacts and posts
423 if((! intval($no_linking)) && (! intval($linkvalue))) {
424 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' ",
426 dbesc(NETWORK_FACEBOOK)
429 require_once('include/Contact.php');
431 contact_remove($rr['id']);
434 elseif(intval($no_linking) && intval($linkvalue)) {
435 // FB linkage is now allowed - import stuff.
437 fb_get_friends($uid, true);
438 fb_consume_all($uid);
441 info( t('Settings updated.') . EOL);
447 // Facebook settings form
449 function facebook_content(&$a) {
452 notice( t('Permission denied.') . EOL);
456 if($a->argc > 1 && $a->argv[1] === 'remove') {
457 del_pconfig(local_user(),'facebook','post');
458 info( t('Facebook disabled') . EOL);
461 if($a->argc > 1 && $a->argv[1] === 'friends') {
462 fb_get_friends(local_user(), true);
463 info( t('Updating contacts') . EOL);
468 $fb_installed = false;
469 if (get_pconfig(local_user(),'facebook','post')) {
470 $access_token = get_pconfig(local_user(),'facebook','access_token');
472 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
473 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
475 $j = json_decode($s);
476 if (isset($j->data)) $fb_installed = true;
481 $appid = get_config('facebook','appid');
484 notice( t('Facebook API key is missing.') . EOL);
488 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
489 . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n";
491 $o .= '<h3>' . t('Facebook Connect') . '</h3>';
493 if(! $fb_installed) {
494 $o .= '<div id="facebook-enable-wrapper">';
496 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
497 . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>';
502 $o .= '<div id="facebook-disable-wrapper">';
504 $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>';
506 $o .= '<div id="facebook-enable-wrapper">';
508 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
509 . $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>';
512 $o .= '<div id="facebook-post-default-form">';
513 $o .= '<form action="facebook" method="post" >';
514 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
515 $checked = (($post_by_default) ? ' checked="checked" ' : '');
516 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
518 $no_linking = get_pconfig(local_user(),'facebook','no_linking');
519 $checked = (($no_linking) ? '' : ' checked="checked" ');
520 $o .= '<input type="checkbox" name="facebook_linking" value="1"' . $checked . '/>' . ' ' . t('Link all your Facebook friends and conversations on this website') . EOL ;
522 $o .= '<p>' . t('Facebook conversations consist of your <em>profile wall</em> and your friend <em>stream</em>.');
523 $o .= ' ' . t('On this website, your Facebook friend stream is only visible to you.');
524 $o .= ' ' . t('The following settings determine the privacy of your Facebook profile wall on this website.') . '</p>';
526 $private_wall = get_pconfig(local_user(),'facebook','private_wall');
527 $checked = (($private_wall) ? ' checked="checked" ' : '');
528 $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 ;
531 $no_wall = get_pconfig(local_user(),'facebook','no_wall');
532 $checked = (($no_wall) ? ' checked="checked" ' : '');
533 $o .= '<input type="checkbox" name="facebook_no_wall" value="1"' . $checked . '/>' . ' ' . t('Do not import your Facebook profile wall conversations') . EOL ;
535 $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>';
538 $blocked_apps = get_pconfig(local_user(),'facebook','blocked_apps');
540 $o .= '<div><label id="blocked-apps-label" for="blocked-apps">' . t('Comma separated applications to ignore') . ' </label></div>';
541 $o .= '<div><textarea id="blocked-apps" name="blocked_apps" >' . htmlspecialchars($blocked_apps) . '</textarea></div>';
543 $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
551 function facebook_cron($a,$b) {
553 $last = get_config('facebook','last_poll');
555 $poll_interval = intval(get_config('facebook','poll_interval'));
557 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
560 $next = $last + $poll_interval;
565 logger('facebook_cron');
568 // Find the FB users on this site and randomize in case one of them
569 // uses an obscene amount of memory. It may kill this queue run
570 // but hopefully we'll get a few others through on each run.
572 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' ORDER BY RAND() ");
575 if(get_pconfig($rr['uid'],'facebook','no_linking'))
577 $ab = intval(get_config('system','account_abandon_days'));
579 $z = q("SELECT `uid` FROM `user` WHERE `uid` = %d AND `login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY LIMIT 1",
587 // check for new friends once a day
588 $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check');
589 if($last_friend_check)
590 $next_friend_check = $last_friend_check + 86400;
591 if($next_friend_check <= time()) {
592 fb_get_friends($rr['uid'], true);
593 set_pconfig($rr['uid'],'facebook','friend_check',time());
595 fb_consume_all($rr['uid']);
599 if (get_config('facebook', 'realtime_active') == 1) {
600 if (!facebook_check_realtime_active()) {
602 logger('facebook_cron: Facebook is not sending Real-Time Updates any more, although it is supposed to. Trying to fix it...', LOGGER_NORMAL);
603 facebook_subscription_add_users();
605 if (facebook_check_realtime_active())
606 logger('facebook_cron: Successful', LOGGER_NORMAL);
608 logger('facebook_cron: Failed', LOGGER_NORMAL);
610 if(strlen($a->config['admin_email']) && !get_config('facebook', 'realtime_err_mailsent')) {
611 $res = mail($a->config['admin_email'], t('Problems with Facebook Real-Time Updates'),
612 "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.",
613 'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
614 . 'Content-type: text/plain; charset=UTF-8' . "\n"
615 . 'Content-transfer-encoding: 8bit'
618 set_config('facebook', 'realtime_err_mailsent', 1);
621 } else { // !facebook_check_realtime_active()
622 del_config('facebook', 'realtime_err_mailsent');
626 set_config('facebook','last_poll', time());
632 function facebook_plugin_settings(&$a,&$b) {
634 $b .= '<div class="settings-block">';
635 $b .= '<h3>' . t('Facebook') . '</h3>';
636 $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />';
642 function facebook_plugin_admin(&$a, &$o){
643 $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
645 $o .= '<h4>' . t('Facebook API Key') . '</h4>';
647 $appid = get_config('facebook', 'appid' );
648 $appsecret = get_config('facebook', 'appsecret' );
649 $poll_interval = get_config('facebook', 'poll_interval' );
650 if (!$poll_interval) $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
652 $working_connection = false;
653 if ($appid && $appsecret) {
654 $subs = facebook_subscriptions_get();
655 if ($subs === null) $o .= t('Error: the given API Key seems to be incorrect (the application access token could not be retrieved).') . '<br>';
656 elseif (is_array($subs)) {
657 $o .= t('The given API Key seems to work correctly.') . '<br>';
658 $working_connection = true;
659 } else $o .= t('The correctness of the API Key could not be detected. Somthing strang\'s going on.') . '<br>';
662 $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
663 $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
664 $o .= '<label for="fb_poll_interval">' . sprintf(t('Polling Interval (min. %1$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;">';
665 $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
667 if ($working_connection) {
668 $o .= '<h4>' . t('Real-Time Updates') . '</h4>';
670 $activated = facebook_check_realtime_active();
672 $o .= t('Real-Time Updates are activated.') . '<br><br>';
673 $o .= '<input type="submit" name="real_time_deactivate" value="' . t('Deactivate Real-Time Updates') . '">';
675 $o .= t('Real-Time Updates not activated.') . '<br><input type="submit" name="real_time_activate" value="' . t('Activate Real-Time Updates') . '">';
680 function facebook_plugin_admin_post(&$a, &$o){
681 check_form_security_token_redirectOnErr('/admin/plugins/facebook', 'fbsave');
683 if (x($_REQUEST,'fb_save_keys')) {
684 set_config('facebook', 'appid', $_REQUEST['appid']);
685 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
686 $poll_interval = IntVal($_REQUEST['poll_interval']);
687 if ($poll_interval >= FACEBOOK_MIN_POLL_INTERVAL) set_config('facebook', 'poll_interval', $poll_interval);
688 del_config('facebook', 'app_access_token');
689 info(t('The new values have been saved.'));
691 if (x($_REQUEST,'real_time_activate')) {
692 facebook_subscription_add_users();
694 if (x($_REQUEST,'real_time_deactivate')) {
695 facebook_subscription_del_users();
699 function facebook_jot_nets(&$a,&$b) {
703 $fb_post = get_pconfig(local_user(),'facebook','post');
704 if(intval($fb_post) == 1) {
705 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
706 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
707 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
708 . t('Post to Facebook') . '</div>';
713 function facebook_post_hook(&$a,&$b) {
716 if($b['deleted'] || ($b['created'] !== $b['edited']))
720 * Post to Facebook stream
723 require_once('include/group.php');
724 require_once('include/html2plain.php');
726 logger('Facebook post');
731 $toplevel = (($b['id'] == $b['parent']) ? true : false);
734 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
736 if((! $toplevel) && ($linking)) {
737 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
738 intval($b['parent']),
741 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
742 $reply = substr($r[0]['uri'],4);
743 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
744 $reply = substr($r[0]['extid'],4);
748 $u = q("SELECT * FROM user where uid = %d limit 1",
754 // only accept comments from the item owner. Other contacts are unknown to FB.
756 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
760 logger('facebook reply id=' . $reply);
763 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
765 if($b['private'] && $reply === false) {
766 $allow_people = expand_acl($b['allow_cid']);
767 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
768 $deny_people = expand_acl($b['deny_cid']);
769 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
771 $recipients = array_unique(array_merge($allow_people,$allow_groups));
772 $deny = array_unique(array_merge($deny_people,$deny_groups));
774 $allow_str = dbesc(implode(', ',$recipients));
776 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
777 $allow_arr = array();
780 $allow_arr[] = $rr['notify'];
783 $deny_str = dbesc(implode(', ',$deny));
785 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
789 $deny_arr[] = $rr['notify'];
792 if(count($deny_arr) && (! count($allow_arr))) {
794 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
795 // This might cause the post to be open to public on Facebook, but only to selected members
796 // on another network. Since this could potentially leak a post to somebody who was denied,
797 // we will skip posting it to Facebook with a slightly vague but relevant message that will
798 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
800 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
805 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
807 if((! count($allow_arr)) && (! count($deny_arr)))
811 if($b['verb'] == ACTIVITY_LIKE)
815 $appid = get_config('facebook', 'appid' );
816 $secret = get_config('facebook', 'appsecret' );
818 if($appid && $secret) {
820 logger('facebook: have appid+secret');
822 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
825 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
826 // or it's a private message with facebook participants
827 // or it's a reply or likes action to an existing facebook post
829 if($fb_token && ($toplevel || $b['private'] || $reply)) {
830 logger('facebook: able to post');
831 require_once('library/facebook.php');
832 require_once('include/bbcode.php');
836 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
838 // make links readable before we strip the code
840 // unless it's a dislike - just send the text as a comment
842 if($b['verb'] == ACTIVITY_DISLIKE)
843 $msg = trim(strip_tags(bbcode($msg)));
845 /*$search_str = $a->get_baseurl() . '/search';
847 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
849 // don't use hashtags for message link
851 if(strpos($matches[2],$search_str) === false) {
853 if(substr($matches[2],0,5) != '[img]')
854 $linkname = $matches[2];
858 // strip tag links to avoid link clutter, this really should be
859 // configurable because we're losing information
861 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
863 // provide the link separately for normal links
864 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
866 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
867 $image = $matches[1];
869 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
871 if((strpos($link,z_root()) !== false) && (! $image))
872 $image = $a->get_baseurl() . '/images/friendica-64.jpg';
874 $msg = trim(strip_tags(bbcode($msg)));*/
878 // Looking for images
879 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
880 $image = $matches[3];
882 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
883 $image = $matches[1];
885 $html = bbcode($b['body']);
886 $msg = trim($b['title']." \n".html2plain($html, 0, true));
887 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
891 // add any attachments as text urls
893 $arr = explode(',',$b['attach']);
897 foreach($arr as $r) {
899 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
901 $msg .= "\n".$matches[1];
906 // To-Do: look for bookmark-bbcode and handle it with priority
908 $links = collecturls($html);
909 if (sizeof($links) > 0) {
911 $link = current($links);
912 /*if (strlen($msg."\n".$link) <= FACEBOOK_MAXPOSTLEN)
918 if ((strlen($msg) > FACEBOOK_MAXPOSTLEN) or $toolong) {
920 require_once('library/slinky.php');
922 $display_url = $b['plink'];
924 $slinky = new Slinky( $display_url );
925 // setup a cascade of shortening services
926 // try to get a short link from these services
927 // in the order ur1.ca, trim, id.gd, tinyurl
928 $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
929 $shortlink = $slinky->short();
930 // the new message will be shortened such that "... $shortlink"
931 // will fit into the character limit
932 $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4);
933 $msg .= '... ' . $shortlink;
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);
983 logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
985 $retj = json_decode($x);
987 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
988 dbesc('fb::' . $retj->id),
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);
1003 $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
1004 if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
1005 require_once('include/enotify.php');
1007 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
1010 'type' => NOTIFY_SYSTEM,
1011 'system_type' => 'facebook_connection_invalid',
1012 'language' => $r[0]['language'],
1013 'to_name' => $r[0]['username'],
1014 'to_email' => $r[0]['email'],
1015 'source_name' => t('Administrator'),
1016 'source_link' => $a->config["system"]["url"],
1017 'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
1020 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
1021 } else logger('Facebook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
1030 function facebook_enotify(&$app, &$data) {
1031 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
1032 $data['itemlink'] = '/facebook';
1033 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
1034 $data['subject'] = t('Facebook connection became invalid');
1035 $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=" . $app->config["system"]["url"] . "/facebook]", "[/url]");
1039 function facebook_post_local(&$a,&$b) {
1041 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
1042 // where we will discover it during background delivery.
1044 // This can only be triggered by a local user posting to their own wall.
1046 if((local_user()) && (local_user() == $b['uid'])) {
1048 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
1049 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
1051 // if API is used, default to the chosen settings
1052 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default')))
1058 if(strlen($b['postopts']))
1059 $b['postopts'] .= ',';
1060 $b['postopts'] .= 'facebook';
1065 function fb_queue_hook(&$a,&$b) {
1067 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
1068 dbesc(NETWORK_FACEBOOK)
1073 require_once('include/queue_fn.php');
1075 foreach($qi as $x) {
1076 if($x['network'] !== NETWORK_FACEBOOK)
1079 logger('facebook_queue: run');
1081 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
1082 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
1090 $appid = get_config('facebook', 'appid' );
1091 $secret = get_config('facebook', 'appsecret' );
1093 if($appid && $secret) {
1094 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
1095 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
1097 if($fb_post && $fb_token) {
1098 logger('facebook_queue: able to post');
1099 require_once('library/facebook.php');
1101 $z = unserialize($x['content']);
1103 $j = post_url($z['url'],$z['post']);
1105 $retj = json_decode($j);
1107 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
1108 dbesc('fb::' . $retj->id),
1111 logger('facebook_queue: success: ' . $j);
1112 remove_queue_item($x['id']);
1115 logger('facebook_queue: failed: ' . $j);
1116 update_queue_time($x['id']);
1123 function fb_consume_all($uid) {
1125 require_once('include/items.php');
1127 $access_token = get_pconfig($uid,'facebook','access_token');
1131 if(! get_pconfig($uid,'facebook','no_wall')) {
1132 $private_wall = intval(get_pconfig($uid,'facebook','private_wall'));
1133 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
1135 $j = json_decode($s);
1136 if (isset($j->data)) {
1137 logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA);
1138 fb_consume_stream($uid,$j,($private_wall) ? false : true);
1140 logger('fb_consume_stream: wall: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1144 $s = fetch_url('https://graph.facebook.com/me/home?access_token=' . $access_token);
1146 $j = json_decode($s);
1147 if (isset($j->data)) {
1148 logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA);
1149 fb_consume_stream($uid,$j,false);
1151 logger('fb_consume_stream: feed: got no data from Facebook: ' . print_r($j,true), LOGGER_NORMAL);
1157 function fb_get_photo($uid,$link) {
1158 $access_token = get_pconfig($uid,'facebook','access_token');
1159 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1160 return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1161 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1163 $photo_id = $match[1];
1164 $x = fetch_url('https://graph.facebook.com/' . $photo_id . '?access_token=' . $access_token);
1165 $j = json_decode($x);
1167 return "\n\n" . '[url=' . $link . '][img]' . $j->picture . '[/img][/url]';
1169 return "\n" . '[url=' . $link . ']' . t('link') . '[/url]';
1172 function fb_consume_stream($uid,$j,$wall = false) {
1177 $user = q("SELECT * FROM `user` WHERE `uid` = %d AND `account_expired` = 0 LIMIT 1",
1183 $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1185 $no_linking = get_pconfig($uid,'facebook','no_linking');
1189 $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
1193 $blocked_apps = get_pconfig($uid,'facebook','blocked_apps');
1194 $blocked_apps_arr = explode(',',$blocked_apps);
1196 $self_id = get_pconfig($uid,'facebook','self_id');
1197 if(! count($j->data) || (! strlen($self_id)))
1200 foreach($j->data as $entry) {
1201 logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA);
1202 $datarray = array();
1204 $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1",
1205 dbesc('fb::' . $entry->id),
1206 dbesc('fb::' . $entry->id),
1210 $post_exists = true;
1212 $top_item = $r[0]['id'];
1215 $post_exists = false;
1220 $datarray['gravity'] = 0;
1221 $datarray['uid'] = $uid;
1222 $datarray['wall'] = (($wall) ? 1 : 0);
1223 $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id;
1224 $from = $entry->from;
1225 if($from->id == $self_id)
1226 $datarray['contact-id'] = $self[0]['id'];
1228 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1233 $datarray['contact-id'] = $r[0]['id'];
1236 // don't store post if we don't have a contact
1238 if(! x($datarray,'contact-id')) {
1239 logger('no contact: post ignored');
1243 $datarray['verb'] = ACTIVITY_POST;
1245 $datarray['owner-name'] = $self[0]['name'];
1246 $datarray['owner-link'] = $self[0]['url'];
1247 $datarray['owner-avatar'] = $self[0]['thumb'];
1249 if(isset($entry->application) && isset($entry->application->name) && strlen($entry->application->name))
1250 $datarray['app'] = strip_tags($entry->application->name);
1252 $datarray['app'] = 'facebook';
1254 $found_blocked = false;
1256 if(count($blocked_apps_arr)) {
1257 foreach($blocked_apps_arr as $bad_appl) {
1258 if(strlen(trim($bad_appl)) && (stristr($datarray['app'],trim($bad_appl)))) {
1259 $found_blocked = true;
1264 if($found_blocked) {
1265 logger('facebook: blocking application: ' . $datarray['app']);
1269 $datarray['author-name'] = $from->name;
1270 $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id;
1271 $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture';
1272 $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1);
1274 $datarray['body'] = escape_tags($entry->message);
1276 if($entry->picture && $entry->link) {
1277 $datarray['body'] .= "\n\n" . '[url=' . $entry->link . '][img]' . $entry->picture . '[/img][/url]';
1281 $datarray['body'] .= "\n\n" . '[img]' . $entry->picture . '[/img]';
1282 // if just a link, it may be a wall photo - check
1284 $datarray['body'] .= fb_get_photo($uid,$entry->link);
1287 $datarray['body'] .= "\n" . $entry->name;
1289 $datarray['body'] .= "\n" . $entry->caption;
1290 if($entry->description)
1291 $datarray['body'] .= "\n" . $entry->description;
1292 $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time);
1293 $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time);
1295 // If the entry has a privacy policy, we cannot assume who can or cannot see it,
1296 // as the identities are from a foreign system. Mark it as private to the owner.
1298 if($entry->privacy && $entry->privacy->value !== 'EVERYONE') {
1299 $datarray['private'] = 1;
1300 $datarray['allow_cid'] = '<' . $self[0]['id'] . '>';
1303 if(trim($datarray['body']) == '') {
1304 logger('facebook: empty body');
1308 $top_item = item_store($datarray);
1309 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1315 logger('fb: new top level item posted');
1319 if(isset($entry->likes) && isset($entry->likes->data))
1320 $likers = $entry->likes->data;
1324 if(isset($entry->comments) && isset($entry->comments->data))
1325 $comments = $entry->comments->data;
1329 if(is_array($likers)) {
1330 foreach($likers as $likes) {
1335 // If we posted the like locally, it will be found with our url, not the FB url.
1337 $second_url = (($likes->id == $self_id) ? $self[0]['url'] : 'http://facebook.com/profile.php?id=' . $likes->id);
1339 $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s'
1340 AND ( `author-link` = '%s' OR `author-link` = '%s' ) LIMIT 1",
1341 dbesc($orig_post['uri']),
1343 dbesc(ACTIVITY_LIKE),
1344 dbesc('http://facebook.com/profile.php?id=' . $likes->id),
1351 $likedata = array();
1352 $likedata['parent'] = $top_item;
1353 $likedata['verb'] = ACTIVITY_LIKE;
1354 $likedata['gravity'] = 3;
1355 $likedata['uid'] = $uid;
1356 $likedata['wall'] = (($wall) ? 1 : 0);
1357 $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid);
1358 $likedata['parent-uri'] = $orig_post['uri'];
1359 if($likes->id == $self_id)
1360 $likedata['contact-id'] = $self[0]['id'];
1362 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
1367 $likedata['contact-id'] = $r[0]['id'];
1369 if(! x($likedata,'contact-id'))
1370 $likedata['contact-id'] = $orig_post['contact-id'];
1372 $likedata['app'] = 'facebook';
1373 $likedata['verb'] = ACTIVITY_LIKE;
1374 $likedata['author-name'] = $likes->name;
1375 $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id;
1376 $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture';
1378 $author = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]';
1379 $objauthor = '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]';
1380 $post_type = t('status');
1381 $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]';
1382 $likedata['object-type'] = ACTIVITY_OBJ_NOTE;
1384 $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink);
1385 $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' .
1386 '<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>';
1388 $item = item_store($likedata);
1391 if(is_array($comments)) {
1392 foreach($comments as $cmnt) {
1397 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1",
1399 dbesc('fb::' . $cmnt->id),
1400 dbesc('fb::' . $cmnt->id)
1405 $cmntdata = array();
1406 $cmntdata['parent'] = $top_item;
1407 $cmntdata['verb'] = ACTIVITY_POST;
1408 $cmntdata['gravity'] = 6;
1409 $cmntdata['uid'] = $uid;
1410 $cmntdata['wall'] = (($wall) ? 1 : 0);
1411 $cmntdata['uri'] = 'fb::' . $cmnt->id;
1412 $cmntdata['parent-uri'] = $orig_post['uri'];
1413 if($cmnt->from->id == $self_id) {
1414 $cmntdata['contact-id'] = $self[0]['id'];
1417 $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1",
1418 dbesc($cmnt->from->id),
1422 $cmntdata['contact-id'] = $r[0]['id'];
1423 if($r[0]['blocked'] || $r[0]['readonly'])
1427 if(! x($cmntdata,'contact-id'))
1428 $cmntdata['contact-id'] = $orig_post['contact-id'];
1430 $cmntdata['app'] = 'facebook';
1431 $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1432 $cmntdata['edited'] = datetime_convert('UTC','UTC',$cmnt->created_time);
1433 $cmntdata['verb'] = ACTIVITY_POST;
1434 $cmntdata['author-name'] = $cmnt->from->name;
1435 $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id;
1436 $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture';
1437 $cmntdata['body'] = $cmnt->message;
1438 $item = item_store($cmntdata);
1440 $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
1441 dbesc($orig_post['uri']),
1445 if(count($myconv)) {
1446 $importer_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
1448 foreach($myconv as $conv) {
1450 // now if we find a match, it means we're in this conversation
1452 if(! link_compare($conv['author-link'],$importer_url))
1455 require_once('include/enotify.php');
1457 $conv_parent = $conv['parent'];
1460 'type' => NOTIFY_COMMENT,
1461 'notify_flags' => $user[0]['notify-flags'],
1462 'language' => $user[0]['language'],
1463 'to_name' => $user[0]['username'],
1464 'to_email' => $user[0]['email'],
1465 'uid' => $user[0]['uid'],
1466 'item' => $cmntdata,
1467 'link' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $item,
1468 'source_name' => $cmntdata['author-name'],
1469 'source_link' => $cmntdata['author-link'],
1470 'source_photo' => $cmntdata['author-avatar'],
1471 'verb' => ACTIVITY_POST,
1473 'parent' => $conv_parent,
1476 // only send one notification
1486 function fb_get_app_access_token() {
1488 $acc_token = get_config('facebook','app_access_token');
1490 if ($acc_token !== false) return $acc_token;
1492 $appid = get_config('facebook','appid');
1493 $appsecret = get_config('facebook', 'appsecret');
1495 if ($appid === false || $appsecret === false) {
1496 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
1499 logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
1500 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
1502 if(strpos($x,'access_token=') !== false) {
1503 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
1505 $token = str_replace('access_token=', '', $x);
1506 if(strpos($token,'&') !== false)
1507 $token = substr($token,0,strpos($token,'&'));
1510 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
1513 set_config('facebook','app_access_token',$token);
1516 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
1521 function facebook_subscription_del_users() {
1523 $access_token = fb_get_app_access_token();
1525 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1526 facebook_delete_url($url);
1528 if (!facebook_check_realtime_active()) del_config('facebook', 'realtime_active');
1531 function facebook_subscription_add_users($second_try = false) {
1533 $access_token = fb_get_app_access_token();
1535 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1537 list($usec, $sec) = explode(" ", microtime());
1538 $verify_token = sha1($usec . $sec . rand(0, 999999999));
1539 set_config('facebook', 'cb_verify_token', $verify_token);
1541 $cb = $a->get_baseurl() . '/facebook/?realtime_cb=1';
1543 $j = post_url($url,array(
1545 "fields" => "feed,friends",
1546 "callback_url" => $cb,
1547 "verify_token" => $verify_token,
1549 del_config('facebook', 'cb_verify_token');
1552 $x = json_decode($j);
1553 logger("Facebook reponse: " . $j, LOGGER_DATA);
1554 if (isset($x->error)) {
1555 logger('facebook_subscription_add_users: got an error: ' . $j);
1556 if ($x->error->type == "OAuthException" && $x->error->code == 190) {
1557 del_config('facebook', 'app_access_token');
1558 if ($second_try === false) facebook_subscription_add_users(true);
1561 logger('facebook_subscription_add_users: sucessful');
1562 if (facebook_check_realtime_active()) set_config('facebook', 'realtime_active', 1);
1567 function facebook_subscriptions_get() {
1569 $access_token = fb_get_app_access_token();
1570 if (!$access_token) return null;
1572 $url = "https://graph.facebook.com/" . get_config('facebook', 'appid' ) . "/subscriptions?access_token=" . $access_token;
1573 $j = fetch_url($url);
1576 $x = json_decode($j);
1577 if (isset($x->data)) $ret = $x->data;
1583 function facebook_check_realtime_active() {
1584 $ret = facebook_subscriptions_get();
1585 if (is_null($ret)) return false;
1586 if (is_array($ret)) foreach ($ret as $re) if (is_object($re) && $re->object == "user") return true;
1593 // DELETE-request to $url
1595 if(! function_exists('facebook_delete_url')) {
1596 function facebook_delete_url($url,$headers = null, &$redirects = 0, $timeout = 0) {
1598 $ch = curl_init($url);
1599 if(($redirects > 8) || (! $ch))
1602 curl_setopt($ch, CURLOPT_HEADER, true);
1603 curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
1604 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
1605 curl_setopt($ch, CURLOPT_USERAGENT, "Friendica");
1607 if(intval($timeout)) {
1608 curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
1611 $curl_time = intval(get_config('system','curl_timeout'));
1612 curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
1615 if(defined('LIGHTTPD')) {
1616 if(!is_array($headers)) {
1617 $headers = array('Expect:');
1619 if(!in_array('Expect:', $headers)) {
1620 array_push($headers, 'Expect:');
1625 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
1627 $check_cert = get_config('system','verifyssl');
1628 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
1629 $prx = get_config('system','proxy');
1631 curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
1632 curl_setopt($ch, CURLOPT_PROXY, $prx);
1633 $prxusr = get_config('system','proxyuser');
1635 curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
1638 $a->set_curl_code(0);
1640 // don't let curl abort the entire application
1641 // if it throws any errors.
1643 $s = @curl_exec($ch);
1646 $curl_info = curl_getinfo($ch);
1647 $http_code = $curl_info['http_code'];
1651 // Pull out multiple headers, e.g. proxy and continuation headers
1652 // allow for HTTP/2.x without fixing code
1654 while(preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/',$base)) {
1655 $chunk = substr($base,0,strpos($base,"\r\n\r\n")+4);
1657 $base = substr($base,strlen($chunk));
1660 if($http_code == 301 || $http_code == 302 || $http_code == 303) {
1662 preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
1663 $url = trim(array_pop($matches));
1664 $url_parsed = @parse_url($url);
1665 if (isset($url_parsed)) {
1667 return delete_url($url,$headers,$redirects,$timeout);
1670 $a->set_curl_code($http_code);
1671 $body = substr($s,strlen($header));
1673 $a->set_curl_headers($header);