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) {
138 $fb_limited = get_config('facebook','crestrict');
141 $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0);
142 set_pconfig($uid,'facebook','post_by_default', $value);
144 $value = ((x($_POST,'mirror_posts')) ? intval($_POST['mirror_posts']) : 0);
145 set_pconfig($uid,'facebook','mirror_posts', $value);
147 $value = ((x($_POST,'suppress_view_on_friendica')) ? intval($_POST['suppress_view_on_friendica']) : 0);
148 set_pconfig($uid,'facebook','suppress_view_on_friendica', $value);
150 $value = ((x($_POST,'post_to_page')) ? $_POST['post_to_page'] : "0-0");
151 $values = explode("-", $value);
152 set_pconfig($uid,'facebook','post_to_page', $values[0]);
153 set_pconfig($uid,'facebook','page_access_token', $values[1]);
155 info( t('Settings updated.') . EOL);
161 // Facebook settings form
167 function fbpost_content(&$a) {
170 notice( t('Permission denied.') . EOL);
175 if(! service_class_allows(local_user(),'facebook_connect')) {
176 notice( t('Permission denied.') . EOL);
177 return upgrade_bool_message();
181 if($a->argc > 1 && $a->argv[1] === 'remove') {
182 del_pconfig(local_user(),'facebook','post');
183 info( t('Facebook Post disabled') . EOL);
188 $fb_installed = false;
189 if (get_pconfig(local_user(),'facebook','post')) {
190 $access_token = get_pconfig(local_user(),'facebook','access_token');
192 $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token);
194 $j = json_decode($s);
195 if (isset($j->data)) $fb_installed = true;
200 $appid = get_config('facebook','appid');
203 notice( t('Facebook API key is missing.') . EOL);
207 $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'
208 . $a->get_baseurl() . '/addon/fbpost/fbpost.css' . '" media="all" />' . "\r\n";
210 $o .= '<h3>' . t('Facebook Post') . '</h3>';
212 if(! $fb_installed) {
213 $o .= '<div id="fbpost-enable-wrapper">';
215 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
216 . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access">' . t('Install Facebook Post connector for this account.') . '</a>';
221 $o .= '<div id="fbpost-disable-wrapper">';
223 $o .= '<a href="' . $a->get_baseurl() . '/fbpost/remove' . '">' . t('Remove Facebook Post connector') . '</a></div>';
225 $o .= '<div id="fbpost-enable-wrapper">';
227 $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri='
228 . $a->get_baseurl() . '/fbpost/' . $a->user['nickname'] . '&scope=read_stream,publish_stream,manage_pages,photo_upload,user_groups,offline_access">' . t('Re-authenticate [This is necessary whenever your Facebook password is changed.]') . '</a>';
231 $o .= '<div id="fbpost-post-default-form">';
232 $o .= '<form action="fbpost" method="post" >';
233 $post_by_default = get_pconfig(local_user(),'facebook','post_by_default');
234 $checked = (($post_by_default) ? ' checked="checked" ' : '');
235 $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . EOL;
237 $suppress_view_on_friendica = get_pconfig(local_user(),'facebook','suppress_view_on_friendica');
238 $checked = (($suppress_view_on_friendica) ? ' checked="checked" ' : '');
239 $o .= '<input type="checkbox" name="suppress_view_on_friendica" value="1"' . $checked . '/>' . ' ' . t('Suppress "View on friendica"') . EOL;
241 $mirror_posts = get_pconfig(local_user(),'facebook','mirror_posts');
242 $checked = (($mirror_posts) ? ' checked="checked" ' : '');
243 $o .= '<input type="checkbox" name="mirror_posts" value="1"' . $checked . '/>' . ' ' . t('Mirror wall posts from facebook to friendica.') . EOL;
246 $post_to_page = get_pconfig(local_user(),'facebook','post_to_page');
247 $page_access_token = get_pconfig(local_user(),'facebook','page_access_token');
248 $fb_token = get_pconfig($a->user['uid'],'facebook','access_token');
249 $url = 'https://graph.facebook.com/me/accounts';
250 $x = fetch_url($url."?access_token=".$fb_token);
251 $accounts = json_decode($x);
253 $o .= t("Post to page/group:")."<select name='post_to_page'>";
254 if (intval($post_to_page) == 0)
255 $o .= "<option value='0-0' selected>".t('None')."</option>";
257 $o .= "<option value='0-0'>".t('None')."</option>";
259 foreach($accounts->data as $account) {
260 if (is_array($account->perms))
261 if ($post_to_page == $account->id)
262 $o .= "<option value='".$account->id."-".$account->access_token."' selected>".$account->name."</option>";
264 $o .= "<option value='".$account->id."-".$account->access_token."'>".$account->name."</option>";
267 $url = 'https://graph.facebook.com/me/groups';
268 $x = fetch_url($url."?access_token=".$fb_token);
269 $groups = json_decode($x);
271 foreach($groups->data as $group) {
272 if ($post_to_page == $group->id)
273 $o .= "<option value='".$group->id."-0' selected>".$group->name."</option>";
275 $o .= "<option value='".$group->id."-0'>".$group->name."</option>";
280 $o .= '<p><input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>';
289 * @param null|object $b
291 function fbpost_plugin_settings(&$a,&$b) {
293 $b .= '<div class="settings-block">';
294 $b .= '<h3>' . t('Facebook') . '</h3>';
295 $b .= '<a href="fbpost">' . t('Facebook Post Settings') . '</a><br />';
303 * @param null|object $o
305 function fbpost_plugin_admin(&$a, &$o){
308 $o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
310 $o .= '<h4>' . t('Facebook API Key') . '</h4>';
312 $appid = get_config('facebook', 'appid' );
313 $appsecret = get_config('facebook', 'appsecret' );
315 $ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
316 $ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
317 if ((count($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>');
319 $o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
320 $o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
322 $o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
330 function fbpost_plugin_admin_post(&$a){
331 check_form_security_token_redirectOnErr('/admin/plugins/fbpost', 'fbsave');
333 if (x($_REQUEST,'fb_save_keys')) {
334 set_config('facebook', 'appid', $_REQUEST['appid']);
335 set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
337 info(t('The new values have been saved.'));
347 function fbpost_jot_nets(&$a,&$b) {
351 $fb_post = get_pconfig(local_user(),'facebook','post');
352 if(intval($fb_post) == 1) {
353 $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default');
354 $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : '');
355 $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . ' value="1" /> '
356 . t('Post to Facebook') . '</div>';
360 function fbpost_ShareAttributes($match) {
362 $attributes = $match[1];
365 preg_match("/author='(.*?)'/ism", $attributes, $matches);
366 if ($matches[1] != "")
367 $author = $matches[1];
369 preg_match('/author="(.*?)"/ism', $attributes, $matches);
370 if ($matches[1] != "")
371 $author = $matches[1];
373 $headline = '<div class="shared_header">';
375 $headline .= sprintf(t('%s:'), $author);
377 $headline .= "</div>";
379 //$text = "<br />".$headline."</strong><blockquote>".$match[2]."</blockquote>";
380 $text = "\n\t".$match[2].":\t";
391 function fbpost_post_hook(&$a,&$b) {
394 if($b['deleted'] || ($b['created'] !== $b['edited']))
397 // if post comes from facebook don't send it back
398 if($b['app'] == "Facebook")
402 * Post to Facebook stream
405 require_once('include/group.php');
406 require_once('include/html2plain.php');
408 logger('Facebook post');
414 $allow_arr = array();
416 $toplevel = (($b['id'] == $b['parent']) ? true : false);
419 $linking = ((get_pconfig($b['uid'],'facebook','no_linking')) ? 0 : 1);
421 if((! $toplevel) && ($linking)) {
422 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
423 intval($b['parent']),
426 if(count($r) && substr($r[0]['uri'],0,4) === 'fb::')
427 $reply = substr($r[0]['uri'],4);
428 elseif(count($r) && substr($r[0]['extid'],0,4) === 'fb::')
429 $reply = substr($r[0]['extid'],4);
433 $u = q("SELECT * FROM user where uid = %d limit 1",
439 // only accept comments from the item owner. Other contacts are unknown to FB.
441 if(! link_compare($b['author-link'], $a->get_baseurl() . '/profile/' . $u[0]['nickname']))
445 logger('facebook reply id=' . $reply);
448 if(strstr($b['postopts'],'facebook') || ($b['private']) || ($reply)) {
450 if($b['private'] && $reply === false) {
451 $allow_people = expand_acl($b['allow_cid']);
452 $allow_groups = expand_groups(expand_acl($b['allow_gid']));
453 $deny_people = expand_acl($b['deny_cid']);
454 $deny_groups = expand_groups(expand_acl($b['deny_gid']));
456 $recipients = array_unique(array_merge($allow_people,$allow_groups));
457 $deny = array_unique(array_merge($deny_people,$deny_groups));
459 $allow_str = dbesc(implode(', ',$recipients));
461 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'");
464 $allow_arr[] = $rr['notify'];
467 $deny_str = dbesc(implode(', ',$deny));
469 $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'");
472 $deny_arr[] = $rr['notify'];
475 if(count($deny_arr) && (! count($allow_arr))) {
477 // One or more FB folks were denied access but nobody on FB was specifically allowed access.
478 // This might cause the post to be open to public on Facebook, but only to selected members
479 // on another network. Since this could potentially leak a post to somebody who was denied,
480 // we will skip posting it to Facebook with a slightly vague but relevant message that will
481 // hopefully lead somebody to this code comment for a better explanation of what went wrong.
483 notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL);
488 // if it's a private message but no Facebook members are allowed or denied, skip Facebook post
490 if((! count($allow_arr)) && (! count($deny_arr)))
494 if($b['verb'] == ACTIVITY_LIKE)
498 $appid = get_config('facebook', 'appid' );
499 $secret = get_config('facebook', 'appsecret' );
501 if($appid && $secret) {
503 logger('facebook: have appid+secret');
505 $fb_token = get_pconfig($b['uid'],'facebook','access_token');
508 // post to facebook if it's a public post and we've ticked the 'post to Facebook' box,
509 // or it's a private message with facebook participants
510 // or it's a reply or likes action to an existing facebook post
512 if($fb_token && ($toplevel || $b['private'] || $reply)) {
513 logger('facebook: able to post');
514 require_once('library/facebook.php');
515 require_once('include/bbcode.php');
519 logger('Facebook post: original msg=' . $msg, LOGGER_DATA);
521 // make links readable before we strip the code
523 // unless it's a dislike - just send the text as a comment
525 // if($b['verb'] == ACTIVITY_DISLIKE)
526 // $msg = trim(strip_tags(bbcode($msg)));
529 /*$search_str = $a->get_baseurl() . '/search';
531 if(preg_match("/\[url=(.*?)\](.*?)\[\/url\]/is",$msg,$matches)) {
533 // don't use hashtags for message link
535 if(strpos($matches[2],$search_str) === false) {
537 if(substr($matches[2],0,5) != '[img]')
538 $linkname = $matches[2];
542 // strip tag links to avoid link clutter, this really should be
543 // configurable because we're losing information
545 $msg = preg_replace("/\#\[url=(.*?)\](.*?)\[\/url\]/is",'#$2',$msg);
547 // provide the link separately for normal links
548 $msg = preg_replace("/\[url=(.*?)\](.*?)\[\/url\]/is",'$2 $1',$msg);
550 if(preg_match("/\[img\](.*?)\[\/img\]/is",$msg,$matches))
551 $image = $matches[1];
553 $msg = preg_replace("/\[img\](.*?)\[\/img\]/is", t('Image: ') . '$1', $msg);
555 if((strpos($link,z_root()) !== false) && (! $image))
556 $image = $a->get_baseurl() . '/images/friendica-64.jpg';
558 $msg = trim(strip_tags(bbcode($msg)));*/
562 // Looking for the first image
564 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
565 $image = $matches[3];
568 if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
569 $image = $matches[1];
571 // When saved into the database the content is sent through htmlspecialchars
572 // That means that we have to decode all image-urls
573 $image = htmlspecialchars_decode($image);
575 // Checking for a bookmark element
577 if (strpos($body, "[bookmark") !== false) {
578 // splitting the text in two parts:
579 // before and after the bookmark
580 $pos = strpos($body, "[bookmark");
581 $body1 = substr($body, 0, $pos);
582 $body2 = substr($body, $pos);
584 // Removing the bookmark and all quotes after the bookmark
585 // they are mostly only the content after the bookmark.
586 $body2 = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'',$body2);
587 $body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
588 $body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
590 $body = $body1.$body2;
593 // Convert recycle signs
594 $body = str_replace("\t", " ", $body);
596 $recycle = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8');
597 $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n\t$2:\t", $body);
599 $recycle = html_entity_decode("◌ ", ENT_QUOTES, 'UTF-8');
600 $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n\t$2:\t", $body);
603 $body = preg_replace_callback("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]/ism","fbpost_ShareAttributes", $body);
605 $bodyparts = explode("\t", $body);
606 // Doesn't help with multiple repeats - the problem has to be solved later
607 if (sizeof($bodyparts) == 3) {
608 $html = bbcode($bodyparts[2], false, false);
609 $test = trim(html2plain($html, 0, true));
611 if (trim($bodyparts[0]) == "")
612 $body = trim($bodyparts[2]);
613 else if (trim($test) == "")
614 $body = trim($bodyparts[0]);
616 $body = trim($bodyparts[0])."\n\n".trim($bodyparts[1])."[quote]".trim($bodyparts[2])."[/quote]";
618 $body = str_replace("\t", "", $body);
620 // At first convert the text to html
621 $html = bbcode($body, false, false);
623 // Then convert it to plain text
624 $msg = trim($b['title']." \n\n".html2plain($html, 0, true));
626 // Removing useless spaces
627 if (substr($msg, -2) == "«")
628 $msg = trim(substr($msg, 0, -2))."«";
630 $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
632 // Removing multiple newlines
633 while (strpos($msg, "\n\n\n") !== false)
634 $msg = str_replace("\n\n\n", "\n\n", $msg);
636 // add any attachments as text urls
637 $arr = explode(',',$b['attach']);
641 foreach($arr as $r) {
643 $cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
645 $msg .= "\n".$matches[1];
652 // look for bookmark-bbcode and handle it with priority
653 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
655 $linkname = $matches[2];
658 // If there is no bookmark element then take the first link
660 $links = collecturls($html);
661 if (sizeof($links) > 0) {
663 $link = current($links);
667 // Remove trailing and leading spaces
671 // Fallback - if message is empty
681 // If there is nothing to post then exit
685 logger('Facebook post: msg=' . $msg, LOGGER_DATA);
690 $postvars = array('access_token' => $fb_token);
692 // message, picture, link, name, caption, description, source, place, tags
693 if(trim($link) != "")
694 if (@exif_imagetype($link) != 0) {
700 'access_token' => $fb_token,
703 if(trim($image) != "")
704 $postvars['picture'] = $image;
706 if(trim($link) != "") {
707 $postvars['link'] = $link;
709 if ((stristr($link,'youtube')) || (stristr($link,'youtu.be')) || (stristr($link,'vimeo'))) {
713 if(trim($linkname) != "")
714 $postvars['name'] = $linkname;
717 if(($b['private']) && ($toplevel)) {
718 $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"';
719 if(count($allow_arr))
720 $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"';
722 $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"';
723 $postvars['privacy'] .= '}';
727 $post_to_page = get_pconfig($b['uid'],'facebook','post_to_page');
728 $page_access_token = get_pconfig($b['uid'],'facebook','page_access_token');
729 if ((intval($post_to_page) != 0) and ($page_access_token != ""))
730 $target = $post_to_page;
735 $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments');
736 } else if (($video != "") or (($image == "") and ($link != ""))) {
737 // If it is a link to a video or a link without a preview picture then post it as a link
742 'access_token' => $fb_token,
746 $postvars['message'] = $msg;
748 $url = 'https://graph.facebook.com/'.$target.'/links';
749 } else if (($link == "") and ($image != "")) {
750 // If it is only an image without a page link then post this image as a photo
752 'access_token' => $fb_token,
756 $postvars['message'] = $msg;
758 $url = 'https://graph.facebook.com/'.$target.'/photos';
759 } else if (($link != "") or ($image != "") or ($b['title'] == '') or (strlen($msg) < 500)) {
760 $url = 'https://graph.facebook.com/'.$target.'/feed';
761 if (!get_pconfig($b['uid'],'facebook','suppress_view_on_friendica') and $b['plink'])
762 $postvars['actions'] = '{"name": "' . t('View on Friendica') . '", "link": "' . $b['plink'] . '"}';
764 // if its only a message and a subject and the message is larger than 500 characters then post it as note
766 'access_token' => $fb_token,
767 'message' => bbcode($b['body'], false, false),
768 'subject' => $b['title'],
770 $url = 'https://graph.facebook.com/'.$target.'/notes';
774 if (!$reply and ($target != "me") and $page_access_token)
775 $postvars['access_token'] = $page_access_token;
777 logger('facebook: post to ' . $url);
778 logger('facebook: postvars: ' . print_r($postvars,true));
780 // "test_mode" prevents anything from actually being posted.
781 // Otherwise, let's do it.
783 if(! get_config('facebook','test_mode')) {
784 $x = post_url($url, $postvars);
785 logger('Facebook post returns: ' . $x, LOGGER_DEBUG);
787 $retj = json_decode($x);
789 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
790 dbesc('fb::' . $retj->id),
796 $s = serialize(array('url' => $url, 'item' => $b['id'], 'post' => $postvars));
797 require_once('include/queue_fn.php');
798 add_to_queue($a->contact,NETWORK_FACEBOOK,$s);
799 notice( t('Facebook post failed. Queued for retry.') . EOL);
802 if (isset($retj->error) && $retj->error->type == "OAuthException" && $retj->error->code == 190) {
803 logger('Facebook session has expired due to changed password.', LOGGER_DEBUG);
805 $last_notification = get_pconfig($b['uid'], 'facebook', 'session_expired_mailsent');
806 if (!$last_notification || $last_notification < (time() - FACEBOOK_SESSION_ERR_NOTIFICATION_INTERVAL)) {
807 require_once('include/enotify.php');
809 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($b['uid']) );
812 'type' => NOTIFY_SYSTEM,
813 'system_type' => 'facebook_connection_invalid',
814 'language' => $r[0]['language'],
815 'to_name' => $r[0]['username'],
816 'to_email' => $r[0]['email'],
817 'source_name' => t('Administrator'),
818 'source_link' => $a->config["system"]["url"],
819 'source_photo' => $a->config["system"]["url"] . '/images/person-80.jpg',
822 set_pconfig($b['uid'], 'facebook', 'session_expired_mailsent', time());
823 } else logger('Facebook: No notification, as the last one was sent on ' . $last_notification, LOGGER_DEBUG);
834 * @param object $data
836 function fbpost_enotify(&$app, &$data) {
837 if (x($data, 'params') && $data['params']['type'] == NOTIFY_SYSTEM && x($data['params'], 'system_type') && $data['params']['system_type'] == 'facebook_connection_invalid') {
838 $data['itemlink'] = '/facebook';
839 $data['epreamble'] = $data['preamble'] = t('Your Facebook connection became invalid. Please Re-authenticate.');
840 $data['subject'] = t('Facebook connection became invalid');
841 $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=" . $app->config["system"]["url"] . "/facebook]", "[/url]");
849 function fbpost_post_local(&$a,&$b) {
851 // Figure out if Facebook posting is enabled for this post and file it in 'postopts'
852 // where we will discover it during background delivery.
854 // This can only be triggered by a local user posting to their own wall.
856 if((local_user()) && (local_user() == $b['uid'])) {
858 $fb_post = intval(get_pconfig(local_user(),'facebook','post'));
859 $fb_enable = (($fb_post && x($_REQUEST,'facebook_enable')) ? intval($_REQUEST['facebook_enable']) : 0);
861 // if API is used, default to the chosen settings
862 // but allow a specific override
864 if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'facebook','post_by_default'))) {
865 if(! x($_REQUEST,'facebook_enable'))
872 if(strlen($b['postopts']))
873 $b['postopts'] .= ',';
874 $b['postopts'] .= 'facebook';
883 function fbpost_queue_hook(&$a,&$b) {
885 $qi = q("SELECT * FROM `queue` WHERE `network` = '%s'",
886 dbesc(NETWORK_FACEBOOK)
891 require_once('include/queue_fn.php');
894 if($x['network'] !== NETWORK_FACEBOOK)
897 logger('facebook_queue: run');
899 $r = q("SELECT `user`.* FROM `user` LEFT JOIN `contact` on `contact`.`uid` = `user`.`uid`
900 WHERE `contact`.`self` = 1 AND `contact`.`id` = %d LIMIT 1",
908 $appid = get_config('facebook', 'appid' );
909 $secret = get_config('facebook', 'appsecret' );
911 if($appid && $secret) {
912 $fb_post = intval(get_pconfig($user['uid'],'facebook','post'));
913 $fb_token = get_pconfig($user['uid'],'facebook','access_token');
915 if($fb_post && $fb_token) {
916 logger('facebook_queue: able to post');
917 require_once('library/facebook.php');
919 $z = unserialize($x['content']);
921 $j = post_url($z['url'],$z['post']);
923 $retj = json_decode($j);
925 q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1",
926 dbesc('fb::' . $retj->id),
929 logger('facebook_queue: success: ' . $j);
930 remove_queue_item($x['id']);
933 logger('facebook_queue: failed: ' . $j);
934 update_queue_time($x['id']);
943 * @return bool|string
945 function fbpost_get_app_access_token() {
947 $acc_token = get_config('facebook','app_access_token');
949 if ($acc_token !== false) return $acc_token;
951 $appid = get_config('facebook','appid');
952 $appsecret = get_config('facebook', 'appsecret');
954 if ($appid === false || $appsecret === false) {
955 logger('fb_get_app_access_token: appid and/or appsecret not set', LOGGER_DEBUG);
958 logger('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials', LOGGER_DATA);
959 $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&grant_type=client_credentials');
961 if(strpos($x,'access_token=') !== false) {
962 logger('fb_get_app_access_token: returned access token: ' . $x, LOGGER_DATA);
964 $token = str_replace('access_token=', '', $x);
965 if(strpos($token,'&') !== false)
966 $token = substr($token,0,strpos($token,'&'));
969 logger('fb_get_app_access_token: empty token: ' . $x, LOGGER_DEBUG);
972 set_config('facebook','app_access_token',$token);
975 logger('fb_get_app_access_token: response did not contain an access_token: ' . $x, LOGGER_DATA);
980 function fbpost_cron($a,$b) {
981 $last = get_config('facebook','last_poll');
983 $poll_interval = intval(get_config('facebook','poll_interval'));
985 $poll_interval = FACEBOOK_DEFAULT_POLL_INTERVAL;
988 $next = $last + ($poll_interval * 60);
990 logger('facebook: poll intervall not reached');
994 logger('facebook: cron_start');
996 $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'mirror_posts' AND `v` = '1' ORDER BY RAND() ");
999 logger('facebook: fetching for user '.$rr['uid']);
1000 fbpost_fetchwall($a, $rr['uid']);
1004 logger('facebook: cron_end');
1006 set_config('facebook','last_poll', time());
1009 function fbpost_fetchwall($a, $uid) {
1010 $access_token = get_pconfig($uid,'facebook','access_token');
1011 $post_to_page = get_pconfig($uid,'facebook','post_to_page');
1012 $lastcreated = get_pconfig($uid,'facebook','last_created');
1014 if ((int)$post_to_page == 0)
1015 $post_to_page = "me";
1017 $url = "https://graph.facebook.com/".$post_to_page."/feed?access_token=".$access_token;
1019 if ($lastcreated != "")
1020 $url .= "&since=".urlencode($lastcreated);
1022 $feed = fetch_url($url);
1023 $data = json_decode($feed);
1024 $items = array_reverse($data->data);
1026 foreach ($items as $item) {
1027 if ($item->created_time > $lastcreated)
1028 $lastcreated = $item->created_time;
1030 if ($item->application->id == get_config('facebook','appid'))
1033 if(isset($item->privacy) && ($item->privacy->value !== 'EVERYONE') && ($item->privacy->value !== ''))
1036 $_SESSION["authenticated"] = true;
1037 $_SESSION["uid"] = $uid;
1039 $_REQUEST["type"] = "wall";
1040 $_REQUEST["api_source"] = true;
1041 $_REQUEST["profile_uid"] = $uid;
1042 $_REQUEST["source"] = "Facebook";
1044 $_REQUEST["body"] = (isset($item->message) ? escape_tags($item->message) : '');
1046 if(isset($item->name) and isset($item->link))
1047 $_REQUEST["body"] .= "\n\n[bookmark=".$item->link."]".$item->name."[/bookmark]";
1048 elseif (isset($item->name))
1049 $_REQUEST["body"] .= "\n\n[b]" . $item->name."[/b]";
1051 if(isset($item->caption)) {
1052 if(!isset($item->name) and isset($item->link))
1053 $_REQUEST["body"] .= "\n\n[bookmark=".$item->link."]".$item->caption."[/bookmark]";
1055 // $_REQUEST["body"] .= "[i]" . $item->caption."[/i]\n";
1058 if(!isset($item->caption) and !isset($item->name)) {
1059 if (isset($item->link))
1060 $_REQUEST["body"] .= "\n[url]".$item->link."[/url]\n";
1062 $_REQUEST["body"] .= "\n";
1066 if(isset($item->description))
1067 $quote = $item->description;
1069 if (isset($item->properties))
1070 foreach ($item->properties as $property)
1071 $quote .= "\n".$property->name.": [url=".$property->href."]".$property->text."[/url]";
1074 $_REQUEST["body"] .= "\n[quote]".$quote."[/quote]";
1076 // Only import the picture when the message is no video
1077 // oembed display a picture of the video as well
1078 if ($item->type != "video") {
1079 if(isset($item->picture) && isset($item->link))
1080 $_REQUEST["body"] .= "\n".'[url='.$item->link.'][img]'.fpost_cleanpicture($item->picture).'[/img][/url]';
1082 if (isset($item->picture))
1083 $_REQUEST["body"] .= "\n".'[img]'.fpost_cleanpicture($item->picture).'[/img]';
1084 // if just a link, it may be a wall photo - check
1085 if(isset($item->link))
1086 $_REQUEST["body"] .= fbpost_get_photo($uid,$item->link);
1090 /*if (($datarray['app'] == "Events") and isset($item->actions))
1091 foreach ($item->actions as $action)
1092 if ($action->name == "View")
1093 $_REQUEST["body"] .= " [url=".$action->link."]".$item->story."[/url]";
1096 if(trim($_REQUEST["body"]) == '') {
1097 logger('facebook: empty body '.$item->id.' '.print_r($item, true));
1101 $_REQUEST["body"] = trim($_REQUEST["body"]);
1103 if (isset($item->place)) {
1104 if ($item->place->name or $item->place->location->street or
1105 $item->place->location->city or $item->place->location->country) {
1106 $_REQUEST["location"] = '';
1107 if ($item->place->name)
1108 $_REQUEST["location"] .= $item->place->name;
1109 if ($item->place->location->street)
1110 $_REQUEST["location"] .= " ".$item->place->location->street;
1111 if ($item->place->location->city)
1112 $_REQUEST["location"] .= " ".$item->place->location->city;
1113 if ($item->place->location->country)
1114 $_REQUEST["location"] .= " ".$item->place->location->country;
1116 $_REQUEST["location"] = trim($_REQUEST["location"]);
1118 if ($item->place->location->latitude and $item->place->location->longitude)
1119 $_REQUEST["coord"] = substr($item->place->location->latitude, 0, 8)
1120 .' '.substr($item->place->location->longitude, 0, 8);
1123 //print_r($_REQUEST);
1124 logger('facebook: posting for user '.$uid);
1126 require_once('mod/item.php');
1130 set_pconfig($uid,'facebook','last_created', $lastcreated);
1133 function fbpost_get_photo($uid,$link) {
1134 $access_token = get_pconfig($uid,'facebook','access_token');
1135 if(! $access_token || (! stristr($link,'facebook.com/photo.php')))
1138 $ret = preg_match('/fbid=([0-9]*)/',$link,$match);
1140 $photo_id = $match[1];
1144 $x = fetch_url('https://graph.facebook.com/'.$photo_id.'?access_token='.$access_token);
1145 $j = json_decode($x);
1147 return "\n\n".'[url='.$link.'][img]'.fpost_cleanpicture($j->picture).'[/img][/url]';
1152 function fpost_cleanpicture($image) {
1154 if (strpos($image, ".fbcdn.net/") and (substr($image, -6) == "_s.jpg"))
1155 $image = substr($image, 0, -6)."_n.jpg";
1157 $queryvar = fbpost_parse_query($image);
1158 if ($queryvar['url'] != "")
1159 $image = urldecode($queryvar['url']);
1164 function fbpost_parse_query($var) {
1166 * Use this function to parse out the query array element from
1167 * the output of parse_url().
1169 $var = parse_url($var, PHP_URL_QUERY);
1170 $var = html_entity_decode($var);
1171 $var = explode('&', $var);
1174 foreach($var as $val) {
1175 $x = explode('=', $val);
1176 $arr[$x[0]] = $x[1];
1179 unset($val, $x, $var);