3 * Name: Facebook Post Connector
5 * Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
6 * Author: Tobias Hößl <https://github.com/CatoTH/>
11 * Installing the Friendica/Facebook connector
13 * Detailed instructions how to use this plugin can be found at
14 * https://github.com/friendica/friendica/wiki/How-to:-Friendica%E2%80%99s-Facebook-connector
16 * Vidoes and embeds will not be posted if there is no other content. Links
17 * and images will be converted to a format suitable for the Facebook API and
18 * long posts truncated - with a link to view the full post.
20 * Facebook contacts will not be able to view private photos, as they are not able to
21 * authenticate to your site to establish identity. We will address this
22 * in a future release.
25 define('FACEBOOK_DEFAULT_POLL_INTERVAL', 5); // given in minutes
27 require_once('include/security.php');
29 function fbpost_install() {
30 register_hook('post_local', 'addon/fbpost/fbpost.php', 'fbpost_post_local');
31 register_hook('notifier_normal', 'addon/fbpost/fbpost.php', 'fbpost_post_hook');
32 register_hook('jot_networks', 'addon/fbpost/fbpost.php', 'fbpost_jot_nets');
33 register_hook('connector_settings', 'addon/fbpost/fbpost.php', 'fbpost_plugin_settings');
34 register_hook('enotify', 'addon/fbpost/fbpost.php', 'fbpost_enotify');
35 register_hook('queue_predeliver', 'addon/fbpost/fbpost.php', 'fbpost_queue_hook');
36 register_hook('cron', 'addon/fbpost/fbpost.php', 'fbpost_cron');
40 function fbpost_uninstall() {
41 unregister_hook('post_local', 'addon/fbpost/fbpost.php', 'fbpost_post_local');
42 unregister_hook('notifier_normal', 'addon/fbpost/fbpost.php', 'fbpost_post_hook');
43 unregister_hook('jot_networks', 'addon/fbpost/fbpost.php', 'fbpost_jot_nets');
44 unregister_hook('connector_settings', 'addon/fbpost/fbpost.php', 'fbpost_plugin_settings');
45 unregister_hook('enotify', 'addon/fbpost/fbpost.php', 'fbpost_enotify');
46 unregister_hook('queue_predeliver', 'addon/fbpost/fbpost.php', 'fbpost_queue_hook');
47 unregister_hook('cron', 'addon/fbpost/fbpost.php', 'fbpost_cron');
51 /* declare the fbpost_module function so that /fbpost url requests will land here */
53 function fbpost_module() {}
57 // If a->argv[1] is a nickname, this is a callback from Facebook oauth requests.
58 // If $_REQUEST["realtime_cb"] is set, this is a callback from the Real-Time Updates API
63 function fbpost_init(&$a) {
71 $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
74 if(!(isset($r) && count($r)))
78 $auth_code = (x($_GET, 'code') ? $_GET['code'] : '');
79 $error = (x($_GET, 'error_description') ? $_GET['error_description'] : '');
83 logger('fbpost_init: Error: ' . $error);
85 if($auth_code && $uid) {
87 $appid = get_config('facebook','appid');
88 $appsecret = get_config('facebook', 'appsecret');
90 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id='
91 . $appid . '&client_secret=' . $appsecret . '&redirect_uri='
92 . urlencode($a->get_baseurl() . '/fbpost/' . $nick)
93 . '&code=' . $auth_code);
95 logger('fbpost_init: returned access token: ' . $x, LOGGER_DATA);
97 if(strpos($x,'access_token=') !== false) {
98 $token = str_replace('access_token=', '', $x);
99 if(strpos($token,'&') !== false)
100 $token = substr($token,0,strpos($token,'&'));
101 set_pconfig($uid,'facebook','access_token',$token);
102 set_pconfig($uid,'facebook','post','1');
103 fbpost_get_self($uid);
114 function fbpost_get_self($uid) {
115 $access_token = get_pconfig($uid,'facebook','access_token');
118 $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token);
120 $j = json_decode($s);
121 set_pconfig($uid,'facebook','self_id',(string) $j->id);
126 // This is the POST method to the facebook settings page
127 // Content is posted to Facebook in the function facebook_post_hook()
132 function fbpost_post(&$a) {
137 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
138 set_pconfig($uid,'facebook','post_by_default', $value);
140 $value = ((x($_POST,'mirror_posts')) ? intval($_POST['mirror_posts']) : 0);
141 set_pconfig($uid,'facebook','mirror_posts', $value);
144 del_pconfig($uid,'facebook','last_created');
146 $value = ((x($_POST,'suppress_view_on_friendica')) ? intval($_POST['suppress_view_on_friendica']) : 0);
147 set_pconfig($uid,'facebook','suppress_view_on_friendica', $value);
149 $value = ((x($_POST,'post_to_page')) ? $_POST['post_to_page'] : "0-0");
150 $values = explode("-", $value);
151 set_pconfig($uid,'facebook','post_to_page', $values[0]);
152 set_pconfig($uid,'facebook','page_access_token', $values[1]);
154 $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
155 if (count($result) > 0) {
156 set_pconfig(local_user(),'fbsync','sync',intval($_POST['fbsync']));
157 set_pconfig(local_user(),'fbsync','create_user',intval($_POST['create_user']));
160 info( t('Settings updated.') . EOL);
166 // Facebook settings form
172 function fbpost_content(&$a) {
175 notice( t('Permission denied.') . EOL);
180 if(! service_class_allows(local_user(),'facebook_connect')) {
181 notice( t('Permission denied.') . EOL);
182 return upgrade_bool_message();
186 if($a->argc > 1 && $a->argv[1] === 'remove') {
187 del_pconfig(local_user(),'facebook','post');
188 info( t('Facebook Post disabled') . EOL);
191 require_once("mod/settings.php");
197 $fb_installed = false;
198 if (get_pconfig(local_user(),'facebook','post')) {
199 $access_token = get_pconfig(local_user(),'facebook','access_token');
201 // fetching the list of accounts to check, if facebook is working
202 // The value is needed several lines below.
203 $url = 'https://graph.facebook.com/me/accounts';
204 $s = fetch_url($url."?access_token=".$access_token, false, $redirects, 10);
206 $accounts = json_decode($s);
207 if (isset($accounts->data))
208 $fb_installed = true;
211 // I'm not totally sure, if this above will work in every situation,
212 // So this old code will be called as well.
213 if (!$fb_installed) {
214 $url ="https://graph.facebook.com/me/feed";
215 $s = fetch_url($url."?access_token=".$access_token."&limit=1", false, $redirects, 10);
217 $j = json_decode($s);
219 $fb_installed = true;
225 $appid = get_config('facebook','appid');
228 notice( t('Facebook API key is missing.') . EOL);
232 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
233 . $a->get_baseurl() . '/addon/fbpost/fbpost.css' . '" media="all" />' . "\r\n";
235 $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
236 $fbsync = (count($result) > 0);
239 $title = t('Facebook Import/Export/Mirror');
241 $title = t('Facebook Export/Mirror');
243 $o .= '<img class="connector" src="images/facebook.png" /><h3 class="connector">'.$title.'</h3>';
245 if(! $fb_installed) {
246 $o .= '<div id="fbpost-enable-wrapper">';
248 //read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access
250 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
251 . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,share_item,video_upload,status_update">' . t('Install Facebook Post connector for this account.') . '</a>';
256 $o .= '<div id="fbpost-disable-wrapper">';
258 $o .= '<a href="' . $a->get_baseurl() . '/fbpost/remove' . '">' . t('Remove Facebook Post connector') . '</a></div>';
260 $o .= '<div id="fbpost-enable-wrapper">';
262 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
263 . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=export_stream,read_stream,publish_stream,manage_pages,photo_upload,user_groups,publish_actions,user_friends,share_item,video_upload,status_update">' . t('Re-authenticate [This is necessary whenever your Facebook password is changed.]') . '</a>';
266 $o .= '<div id="fbpost-post-default-form">';
267 $o .= '<form action="fbpost" method="post" >';
268 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
269 $checked = (($post_by_default) ? ' checked="checked" ' : '');
270 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
272 $suppress_view_on_friendica = get_pconfig(local_user(),'facebook','suppress_view_on_friendica');
273 $checked = (($suppress_view_on_friendica) ? ' checked="checked" ' : '');
274 $o .= '<input type="checkbox" name="suppress_view_on_friendica" value="1"' . $checked . '/>' . ' ' . t('Suppress "View on friendica"') . EOL;
276 $mirror_posts = get_pconfig(local_user(),'facebook','mirror_posts');
277 $checked = (($mirror_posts) ? ' checked="checked" ' : '');
278 $o .= '<input type="checkbox" name="mirror_posts" value="1"' . $checked . '/>' . ' ' . t('Mirror wall posts from facebook to friendica.') . EOL;
281 $post_to_page = get_pconfig(local_user(),'facebook','post_to_page');
282 $page_access_token = get_pconfig(local_user(),'facebook','page_access_token');
283 $fb_token = get_pconfig($a->user['uid'],'facebook','access_token');
284 //$url = 'https://graph.facebook.com/me/accounts';
285 //$x = fetch_url($url."?access_token=".$fb_token, false, $redirects, 10);
286 //$accounts = json_decode($x);
288 $o .= t("Post to page/group:")."<select name='post_to_page'>";
289 if (intval($post_to_page) == 0)
290 $o .= "<option value='0-0' selected>".t('None')."</option>";
292 $o .= "<option value='0-0'>".t('None')."</option>";
294 foreach($accounts->data as $account) {
295 if (is_array($account->perms))
296 if ($post_to_page == $account->id)
297 $o .= "<option value='".$account->id."-".$account->access_token."' selected>".$account->name."</option>";
299 $o .= "<option value='".$account->id."-".$account->access_token."'>".$account->name."</option>";
302 $url = 'https://graph.facebook.com/me/groups';
303 $x = fetch_url($url."?access_token=".$fb_token, false, $redirects, 10);
304 $groups = json_decode($x);
306 foreach($groups->data as $group) {
307 if ($post_to_page == $group->id)
308 $o .= "<option value='".$group->id."-0' selected>".$group->name."</option>";
310 $o .= "<option value='".$group->id."-0'>".$group->name."</option>";
317 $o .= '<div class="clear"></div>';
319 $sync_enabled = get_pconfig(local_user(),'fbsync','sync');
320 $checked = (($sync_enabled) ? ' checked="checked" ' : '');
321 $o .= '<input type="checkbox" name="fbsync" value="1"' . $checked . '/>' . ' ' . t('Import Facebook newsfeed.') . EOL;
323 $create_user = get_pconfig(local_user(),'fbsync','create_user');
324 $checked = (($create_user) ? ' checked="checked" ' : '');
325 $o .= '<input type="checkbox" name="create_user" value="1"' . $checked . '/>' . ' ' . t('Automatically create contacts.') . EOL;
328 $o .= '<p><input type="submit" name="submit" value="' . t('Save Settings') . '" /></form></div>';
336 * @param null|object $b
338 function fbpost_plugin_settings(&$a,&$b) {
340 $enabled = get_pconfig(local_user(),'facebook','post');
341 $css = (($enabled) ? '' : '-disabled');
343 $result = q("SELECT `installed` FROM `addon` WHERE `name` = 'fbsync' AND `installed`");
344 if(count($result) > 0)
345 $title = t('Facebook Import/Export/Mirror');
347 $title = t('Facebook Export/Mirror');
349 $b .= '<div class="settings-block">';
350 $b .= '<a href="fbpost"><img class="connector'.$css.'" src="images/facebook.png" /><h3 class="connector">'.$title.'</h3></a>';
357 * @param null|object $o
359 function fbpost_plugin_admin(&$a, &$o){
362 $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
364 $o .= '<h4>' . t('Facebook API Key') . '</h4>';
366 $appid = get_config('facebook', 'appid' );
367 $appsecret = get_config('facebook', 'appsecret' );
369 $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
370 $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
371 if ((count($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>');
373 $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
374 $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
376 $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
384 function fbpost_plugin_admin_post(&$a){
385 check_form_security_token_redirectOnErr('/admin/plugins/fbpost', 'fbsave');
387 if (x($_REQUEST,'fb_save_keys')) {
388 set_config('facebook', 'appid', $_REQUEST['appid']);
389 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
391 info(t('The new values have been saved.'));
401 function fbpost_jot_nets(&$a,&$b) {
405 $fb_post = get_pconfig(local_user(),'facebook','post');
406 if(intval($fb_post) == 1) {
407 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
408 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
409 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
410 . t('Post to Facebook') . '</div>';
419 function fbpost_post_hook(&$a,&$b) {
421 logger('fbpost_post_hook: Facebook post invoked', LOGGER_DEBUG);
423 if($b['deleted'] || ($b['created'] !== $b['edited']))
426 logger('fbpost_post_hook: Facebook post first check successful', LOGGER_DEBUG);
428 // if post comes from facebook don't send it back
429 if(($b['app'] == "Facebook") AND ($b['verb'] != ACTIVITY_LIKE))
432 logger('fbpost_post_hook: Facebook post accepted', LOGGER_DEBUG);
435 * Post to Facebook stream
438 require_once('include/group.php');
439 require_once('include/html2plain.php');
446 $allow_arr = array();
448 $toplevel = (($b['id'] == $b['parent']) ? true : false);
451 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
453 if((!$toplevel) && ($linking)) {
454 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
455 intval($b['parent']),
458 //$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
459 // dbesc($b['parent-uri']),
463 // is it a reply to a facebook post?
464 // A reply to a toplevel post is only allowed for "real" facebook posts
465 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
466 $reply = substr($r[0]['uri'],4);
467 elseif(count($r) && (substr($r[0]['extid'],0,4) === 'fb::') AND ($r[0]['id'] != $r[0]['parent']))
468 $reply = substr($r[0]['extid'],4);
472 $u = q("SELECT * FROM user where uid = %d limit 1",
478 // only accept comments from the item owner. Other contacts are unknown to FB.
480 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
484 logger('fbpost_post_hook: facebook reply id=' . $reply);
487 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
489 if($b['private'] && $reply === false) {
490 $allow_people = expand_acl($b['allow_cid']);
491 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
492 $deny_people = expand_acl($b['deny_cid']);
493 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
495 $recipients = array_unique(array_merge($allow_people,$allow_groups));
496 $deny = array_unique(array_merge($deny_people,$deny_groups));
498 $allow_str = dbesc(implode(', ',$recipients));
500 logger("fbpost_post_hook: private post to: ".$allow_str, LOGGER_DEBUG);
501 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
504 $allow_arr[] = $rr['notify'];
507 $deny_str = dbesc(implode(', ',$deny));
509 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
512 $deny_arr[] = $rr['notify'];
515 if(count($deny_arr) && (! count($allow_arr))) {
517 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
518 // This might cause the post to be open to public on Facebook, but only to selected members
519 // on another network. Since this could potentially leak a post to somebody who was denied,
520 // we will skip posting it to Facebook with a slightly vague but relevant message that will
521 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
523 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
528 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
530 if((! count($allow_arr)) && (! count($deny_arr)))
534 if($b['verb'] == ACTIVITY_LIKE) {
536 logger('fbpost_post_hook: liking '.print_r($b, true), LOGGER_DEBUG);
540 $appid = get_config('facebook', 'appid' );
541 $secret = get_config('facebook', 'appsecret' );
543 if($appid && $secret) {
545 logger('fbpost_post_hook: have appid+secret');
547 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
550 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
551 // or it's a private message with facebook participants
552 // or it's a reply or likes action to an existing facebook post
554 if($fb_token && ($toplevel || $b['private'] || $reply)) {
555 logger('fbpost_post_hook: able to post');
556 require_once('library/facebook.php');
557 require_once('include/bbcode.php');
561 logger('fbpost_post_hook: original msg=' . $msg, LOGGER_DATA);
564 require_once("include/plaintext.php");
565 $msgarr = plaintext($a, $b, 0, false);
566 $msg = $msgarr["text"];
567 $link = $msgarr["url"];
568 $image = $msgarr["image"];
569 $linkname = $msgarr["title"];
571 // Fallback - if message is empty
581 require_once("include/bbcode.php");
582 require_once("include/html2plain.php");
583 $msg = bb_CleanPictureLinks($msg);
584 $msg = bbcode($msg, false, false, 2, true);
585 $msg = trim(html2plain($msg, 0));
591 // If there is nothing to post then exit
595 logger('fbpost_post_hook: msg=' . $msg, LOGGER_DATA);
600 $postvars = array('access_token' => $fb_token);
602 // message, picture, link, name, caption, description, source, place, tags
603 //if(trim($link) != "")
604 // if (@exif_imagetype($link) != 0) {
610 'access_token' => $fb_token,
613 if(trim($image) != "")
614 $postvars['picture'] = $image;
616 if(trim($link) != "") {
617 $postvars['link'] = $link;
619 if ((stristr($link,'youtube')) || (stristr($link,'youtu.be')) || (stristr($link,'vimeo'))) {
623 if(trim($linkname) != "")
624 $postvars['name'] = $linkname;
627 if(($b['private']) && ($toplevel)) {
628 $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
629 if(count($allow_arr))
630 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
632 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
633 $postvars['privacy'] .= '}';
637 $post_to_page = get_pconfig($b['uid'],'facebook','post_to_page');
638 $page_access_token = get_pconfig($b['uid'],'facebook','page_access_token');
639 if ((intval($post_to_page) != 0) and ($page_access_token != ""))
640 $target = $post_to_page;
645 $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
646 } else if (($video != "") or (($image == "") and ($link != ""))) {
647 // If it is a link to a video or a link without a preview picture then post it as a link
652 'access_token' => $fb_token,
656 $postvars['message'] = $msg;
658 $url = 'https://graph.facebook.com/'.$target.'/links';
659 } else if (($link == "") and ($image != "")) {
660 // If it is only an image without a page link then post this image as a photo
662 'access_token' => $fb_token,
666 $postvars['message'] = $msg;
668 $url = 'https://graph.facebook.com/'.$target.'/photos';
669 //} else if (($link != "") or ($image != "") or ($b['title'] == '') or (strlen($msg) < 500)) {
671 $url = 'https://graph.facebook.com/'.$target.'/feed';
672 if (!get_pconfig($b['uid'],'facebook','suppress_view_on_friendica') and $b['plink'])
673 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' . $b['plink'] . '"}';
676 // if its only a message and a subject and the message is larger than 500 characters then post it as note
678 'access_token' => $fb_token,
679 'message' => bbcode($b['body'], false, false),
680 'subject' => $b['title'],
682 $url = 'https://graph.facebook.com/'.$target.'/notes';
686 if (!$reply and ($target != "me") and $page_access_token)
687 $postvars['access_token'] = $page_access_token;
689 logger('fbpost_post_hook: post to ' . $url);
690 logger('fbpost_post_hook: postvars: ' . print_r($postvars,true));
692 // "test_mode" prevents anything from actually being posted.
693 // Otherwise, let's do it.
695 if(!get_config('facebook','test_mode')) {
696 $x = post_url($url, $postvars);
697 logger('fbpost_post_hook: post returns: ' . $x, LOGGER_DEBUG);
699 $retj = json_decode($x);
701 // Only set the extid when it isn't the toplevel post
702 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d",
703 dbesc('fb::' . $retj->id),
708 // Sometimes posts are accepted from facebook although it telling an error
709 // This leads to endless comment flooding.
711 // If it is a special kind of failure the post was receiced
712 // Although facebook said it wasn't received ...
713 if (!$likes AND (($retj->error->type != "OAuthException") OR ($retj->error->code != 2)) AND ($x <> "")) {
714 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `self`", intval($b['uid']));
716 $a->contact = $r[0]["id"];
718 $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
719 require_once('include/queue_fn.php');
720 add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
721 logger('fbpost_post_hook: Post failed, requeued.', LOGGER_DEBUG);
722 notice( t('Facebook post failed. Queued for retry.') . EOL);
725 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
726 logger('fbpost_post_hook: Facebook session has expired due to changed password.', LOGGER_DEBUG);
728 $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
729 if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
730 require_once('include/enotify.php');
732 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']));
735 'type' => NOTIFY_SYSTEM,
736 'system_type' => 'facebook_connection_invalid',
737 'language' => $r[0]['language'],
738 'to_name' => $r[0]['username'],
739 'to_email' => $r[0]['email'],
740 'source_name' => t('Administrator'),
741 'source_link' => $a->config["system"]["url"],
742 'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
745 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
746 } else logger('fbpost_post_hook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
757 * @param object $data
759 function fbpost_enotify(&$app, &$data) {
760 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
761 $data['itemlink'] = '/fbpost';
762 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
763 $data['subject'] = t('Facebook connection became invalid');
764 $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=" . $app->config["system"]["url"] . "/fbpost]", "[/url]");
772 function fbpost_post_local(&$a,&$b) {
774 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
775 // where we will discover it during background delivery.
777 // This can only be triggered by a local user posting to their own wall.
779 if((local_user()) && (local_user() == $b['uid'])) {
781 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
782 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
784 // if API is used, default to the chosen settings
785 // but allow a specific override
787 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default'))) {
788 if(! x($_REQUEST,'facebook_enable'))
795 if(strlen($b['postopts']))
796 $b['postopts'] .= ',';
797 $b['postopts'] .= 'facebook';
806 function fbpost_queue_hook(&$a,&$b) {
808 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
809 dbesc(NETWORK_FACEBOOK)
814 require_once('include/queue_fn.php');
817 if($x['network'] !== NETWORK_FACEBOOK)
820 logger('fbpost_queue_hook: run');
822 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
823 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
827 logger('fbpost_queue_hook: no user found for entry '.print_r($x, true));
828 update_queue_time($x['id']);
834 $appid = get_config('facebook', 'appid' );
835 $secret = get_config('facebook', 'appsecret' );
837 if($appid && $secret) {
838 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
839 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
841 if($fb_post && $fb_token) {
842 logger('fbpost_queue_hook: able to post');
843 require_once('library/facebook.php');
845 $z = unserialize($x['content']);
847 $j = post_url($z['url'],$z['post']);
849 $retj = json_decode($j);
851 // Only set the extid when it isn't the toplevel post
852 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d AND `parent` != %d",
853 dbesc('fb::' . $retj->id),
857 logger('fbpost_queue_hook: success: ' . $j);
858 remove_queue_item($x['id']);
860 logger('fbpost_queue_hook: failed: ' . $j);
862 // If it is a special kind of failure the post was receiced
863 // Although facebook said it wasn't received ...
864 $ret = json_decode($j);
865 if (($ret->error->type != "OAuthException") OR ($ret->error->code != 2) AND ($j <> ""))
866 update_queue_time($x['id']);
868 logger('fbpost_queue_hook: Not requeued, since it seems to be received');
871 logger('fbpost_queue_hook: No fb_post or fb_token.');
872 update_queue_time($x['id']);
875 logger('fbpost_queue_hook: No appid or secret.');
876 update_queue_time($x['id']);
883 * @return bool|string
885 function fbpost_get_app_access_token() {
887 $acc_token = get_config('facebook','app_access_token');
889 if ($acc_token !== false) return $acc_token;
891 $appid = get_config('facebook','appid');
892 $appsecret = get_config('facebook', 'appsecret');
894 if ($appid === false || $appsecret === false) {
895 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
898 logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
899 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
901 if(strpos($x,'access_token=') !== false) {
902 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
904 $token = str_replace('access_token=', '', $x);
905 if(strpos($token,'&') !== false)
906 $token = substr($token,0,strpos($token,'&'));
909 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
912 set_config('facebook','app_access_token',$token);
915 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
920 function fbpost_cron($a,$b) {
921 $last = get_config('facebook','last_poll');
923 $poll_interval = intval(get_config('facebook','poll_interval'));
925 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
928 $next = $last + ($poll_interval * 60);
930 logger('facebook: poll intervall not reached');
934 logger('facebook: cron_start');
936 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'mirror_posts' AND `v` = '1' ORDER BY RAND() ");
939 logger('facebook: fetching for user '.$rr['uid']);
940 fbpost_fetchwall($a, $rr['uid']);
944 logger('facebook: cron_end');
946 set_config('facebook','last_poll', time());
949 function fbpost_fetchwall($a, $uid) {
950 require_once("include/oembed.php");
951 require_once('mod/item.php');
953 $access_token = get_pconfig($uid,'facebook','access_token');
954 $post_to_page = get_pconfig($uid,'facebook','post_to_page');
955 $lastcreated = get_pconfig($uid,'facebook','last_created');
957 if ((int)$post_to_page == 0)
958 $post_to_page = "me";
960 $url = "https://graph.facebook.com/".$post_to_page."/feed?access_token=".$access_token;
962 $first_time = ($lastcreated == "");
964 if ($lastcreated != "")
965 $url .= "&since=".urlencode($lastcreated);
967 $feed = fetch_url($url);
968 $data = json_decode($feed);
970 if (!is_array($data->data))
973 $items = array_reverse($data->data);
975 foreach ($items as $item) {
976 if ($item->created_time > $lastcreated)
977 $lastcreated = $item->created_time;
982 if ($item->application->id == get_config('facebook','appid'))
985 if(isset($item->privacy) && ($item->privacy->value !== 'EVERYONE') && ($item->privacy->value !== ''))
988 if (($post_to_page != $item->from->id) AND ((int)$post_to_page != 0))
991 if (!strstr($item->id, $item->from->id."_") AND isset($item->to) AND ((int)$post_to_page == 0))
994 $_SESSION["authenticated"] = true;
995 $_SESSION["uid"] = $uid;
998 $_REQUEST["type"] = "wall";
999 $_REQUEST["api_source"] = true;
1000 $_REQUEST["profile_uid"] = $uid;
1001 $_REQUEST["source"] = "Facebook";
1003 $_REQUEST["title"] = "";
1005 $_REQUEST["body"] = (isset($item->message) ? escape_tags($item->message) : '');
1010 if(isset($item->name) and isset($item->link)) {
1011 $oembed_data = oembed_fetch_url($item->link);
1012 $type = $oembed_data->type;
1013 $content = "[bookmark=".$item->link."]".$item->name."[/bookmark]";
1014 } elseif (isset($item->name))
1015 $content .= "[b]".$item->name."[/b]";
1018 if(isset($item->description) and ($item->type != "photo"))
1019 $quote = $item->description;
1021 if(isset($item->caption) and ($item->type == "photo"))
1022 $quote = $item->caption;
1024 // Only import the picture when the message is no video
1025 // oembed display a picture of the video as well
1026 //if ($item->type != "video") {
1027 //if (($item->type != "video") and ($item->type != "photo")) {
1028 if (($type == "") OR ($type == "link")) {
1030 $type = $item->type;
1032 if(isset($item->picture) && isset($item->link))
1033 $content .= "\n".'[url='.$item->link.'][img]'.fpost_cleanpicture($item->picture).'[/img][/url]';
1035 if (isset($item->picture))
1036 $content .= "\n".'[img]'.fpost_cleanpicture($item->picture).'[/img]';
1037 // if just a link, it may be a wall photo - check
1038 if(isset($item->link))
1039 $content .= fbpost_get_photo($uid,$item->link);
1043 if(trim($_REQUEST["body"].$content.$quote) == '') {
1044 logger('facebook: empty body '.$item->id.' '.print_r($item, true));
1049 $_REQUEST["body"] .= "\n";
1052 $_REQUEST["body"] .= "[class=type-".$type."]";
1055 $_REQUEST["body"] .= trim($content);
1058 $_REQUEST["body"] .= "\n[quote]".$quote."[/quote]";
1061 $_REQUEST["body"] .= "[/class]";
1063 $_REQUEST["body"] = trim($_REQUEST["body"]);
1065 if (isset($item->place)) {
1066 if ($item->place->name or $item->place->location->street or
1067 $item->place->location->city or $item->place->location->country) {
1068 $_REQUEST["location"] = '';
1069 if ($item->place->name)
1070 $_REQUEST["location"] .= $item->place->name;
1071 if ($item->place->location->street)
1072 $_REQUEST["location"] .= " ".$item->place->location->street;
1073 if ($item->place->location->city)
1074 $_REQUEST["location"] .= " ".$item->place->location->city;
1075 if ($item->place->location->country)
1076 $_REQUEST["location"] .= " ".$item->place->location->country;
1078 $_REQUEST["location"] = trim($_REQUEST["location"]);
1080 if ($item->place->location->latitude and $item->place->location->longitude)
1081 $_REQUEST["coord"] = substr($item->place->location->latitude, 0, 8)
1082 .' '.substr($item->place->location->longitude, 0, 8);
1085 //print_r($_REQUEST);
1086 logger('facebook: posting for user '.$uid);
1090 set_pconfig($uid,'facebook','last_created', $lastcreated);
1093 function fbpost_get_photo($uid,$link) {
1094 $access_token = get_pconfig($uid,'facebook','access_token');
1095 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1098 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1100 $photo_id = $match[1];
1104 $x = fetch_url('https://graph.facebook.com/'.$photo_id.'?access_token='.$access_token);
1105 $j = json_decode($x);
1107 return "\n\n".'[url='.$link.'][img]'.fpost_cleanpicture($j->picture).'[/img][/url]';
1112 function fpost_cleanpicture($image) {
1114 if ((strpos($image, ".fbcdn.net/") OR strpos($image, "/fbcdn-photos-")) and (substr($image, -6) == "_s.jpg"))
1115 $image = substr($image, 0, -6)."_n.jpg";
1117 $queryvar = fbpost_parse_query($image);
1118 if ($queryvar['url'] != "")
1119 $image = urldecode($queryvar['url']);
1124 function fbpost_parse_query($var) {
1126 * Use this function to parse out the query array element from
1127 * the output of parse_url().
1129 $var = parse_url($var, PHP_URL_QUERY);
1130 $var = html_entity_decode($var);
1131 $var = explode('&', $var);
1134 foreach($var as $val) {
1135 $x = explode('=', $val);
1136 $arr[$x[0]] = $x[1];
1139 unset($val, $x, $var);