<?php /** * This module still needs a lot of work, but is functional today. * Please review this section if you upgrade because things will change. * If you have issues upgrading, remove facebook from the addon list, * view a page on your site, then add it back to the list. This will reset * all of the plugin 'hooks'. * * 1. register an API key for your site from developer.facebook.com * a. We'd be very happy if you include "Friendika" in the application name * to increase name recognition. The Friendika icons are also present * in the images directory and may be uploaded as a Facebook app icon. * Use images/ff-16.jpg for the Icon and images/ff-128.jpg for the Logo. * b. The url should be your site URL with a trailing slash. * You may use http://portal.friendika.com/privacy as the privacy policy * URL unless your site has different requirements, and * http://portal.friendika.com as the Terms of Service URL unless * you have different requirements. (Friendika is a software application * and does not require Terms of Service, though your installation of it might). * c. Set the following values in your .htconfig.php file * $a->config['facebook']['appid'] = 'xxxxxxxxxxx'; * $a->config['facebook']['appsecret'] = 'xxxxxxxxxxxxxxx'; * Replace with the settings Facebook gives you. * 2. Enable the facebook plugin by including it in .htconfig.php - e.g. * $a->config['system']['addon'] = 'plugin1,plugin2,facebook'; * 3. Visit the Facebook Settings from "Settings->Plugin Settings" page. * and click 'Install Facebook Connector'. * 4. This will ask you to login to Facebook and grant permission to the * plugin to do its stuff. Allow it to do so. * 5. You're done. To turn it off visit your site's /facebook page again and * 'Remove Facebook posting'. * * Turn logging on (see the github Friendika wiki page 'Settings') and * repeat these steps if you have trouble. * Vidoes and embeds will not be posted if there is no other content. Links * and images will be converted to text and long posts truncated - with a link * to view the full post. Posts with permission settings and comments will * not be posted to Facebook. * */ define('FACEBOOK_MAXPOSTLEN', 420); /* declare the facebook_module function so that /facebook url requests will land here */ function facebook_module() {} /* If a->argv[1] is a nickname, this is a callback from Facebook oauth requests. */ function facebook_init(&$a) { if($a->argc != 2) return; $nick = $a->argv[1]; if(strlen($nick)) $r = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1", dbesc($nick) ); if(! count($r)) return; $uid = $r[0]['uid']; $auth_code = (($_GET['code']) ? $_GET['code'] : ''); $error = (($_GET['error_description']) ? $_GET['error_description'] : ''); if($error) logger('facebook_init: Error: ' . $error); if($auth_code && $uid) { $appid = get_config('facebook','appid'); $appsecret = get_config('facebook', 'appsecret'); $x = fetch_url('https://graph.facebook.com/oauth/access_token?client_id=' . $appid . '&client_secret=' . $appsecret . '&redirect_uri=' . urlencode($a->get_baseurl() . '/facebook/' . $nick) . '&code=' . $auth_code); logger('facebook_init: returned access token: ' . $x, LOGGER_DATA); if(strpos($x,'access_token=') !== false) { $token = str_replace('access_token=', '', $x); if(strpos($token,'&') !== false) $token = substr($token,0,strpos($token,'&')); set_pconfig($uid,'facebook','access_token',$token); set_pconfig($uid,'facebook','post','1'); fb_get_self($uid); fb_get_friends($uid); fb_consume_all($uid); } // todo: is this a browser session or a server session? where do we go? } } function fb_get_self($uid) { $access_token = get_pconfig($uid,'facebook','access_token'); if(! $access_token) return; $s = fetch_url('https://graph.facebook.com/me/?access_token=' . $access_token); if($s) { $j = json_decode($s); set_pconfig($uid,'facebook','self_id',(string) $j->id); } } function fb_get_friends($uid) { $access_token = get_pconfig($uid,'facebook','access_token'); if(! $access_token) return; $s = fetch_url('https://graph.facebook.com/me/friends?access_token=' . $access_token); if($s) { logger('facebook: fb_get_friends: ' . $s); $j = json_decode($s); logger('facebook: fb_get_friends: json: ' . print_r($j,true), LOGGER_DATA); foreach($j->data as $person) { $s = fetch_url('https://graph.facebook.com/' . $person->id . '?access_token=' . $access_token); if($s) { $jp = json_decode($s); logger('fb_get_friends: info: ' . print_r($jp,true), LOGGER_DATA); // always use numeric link for consistency $jp->link = 'http://facebook.com/profile.php?id=' . $person->id; // check if we already have a contact $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1", intval($uid), dbesc($jp->link) ); if(count($r)) { continue; } else { // create contact record $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `addr`, `alias`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`, `priority`, `writable`, `blocked`, `readonly`, `pending` ) VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ", intval($uid), dbesc(datetime_convert()), dbesc($jp->link), dbesc(''), dbesc(''), dbesc($jp->id), dbesc('facebook ' . $jp->id), dbesc($jp->name), dbesc(($jp->nickname) ? $jp->nickname : strtolower($jp->first_name)), dbesc('https://graph.facebook.com/' . $jp->id . '/picture'), dbesc(NETWORK_FACEBOOK), intval(REL_BUD), intval(1), intval(1) ); } $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1", dbesc($jp->link), intval($uid) ); if(! count($r)) { continue; } $contact = $r[0]; $contact_id = $r[0]['id']; require_once("Photo.php"); $photos = import_profile_photo($r[0]['photo'],$uid,$contact_id); $r = q("UPDATE `contact` SET `photo` = '%s', `thumb` = '%s', `micro` = '%s', `name-date` = '%s', `uri-date` = '%s', `avatar-date` = '%s' WHERE `id` = %d LIMIT 1 ", dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]), dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc(datetime_convert()), intval($contact_id) ); } } } } function facebook_post(&$a) { if(local_user()){ $value = ((x($_POST,'post_by_default')) ? intval($_POST['post_by_default']) : 0); set_pconfig(local_user(),'facebook','post_by_default', $value); } return; } function facebook_content(&$a) { if(! local_user()) { notice( t('Permission denied.') . EOL); return ''; } if($a->argc > 1 && $a->argv[1] === 'remove') { del_pconfig(local_user(),'facebook','post'); notice( t('Facebook disabled') . EOL); } $fb_installed = get_pconfig(local_user(),'facebook','post'); $appid = get_config('facebook','appid'); if(! $appid) { notice( t('Facebook API key is missing.') . EOL); return ''; } $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/facebook/facebook.css' . '" media="all" />' . "\r\n"; $o .= '<h3>' . t('Facebook Connect') . '</h3>'; if(! $fb_installed) { $o .= '<div id="facebook-enable-wrapper">'; $o .= '<a href="https://www.facebook.com/dialog/oauth?client_id=' . $appid . '&redirect_uri=' . $a->get_baseurl() . '/facebook/' . $a->user['nickname'] . '&scope=publish_stream,read_stream,offline_access">' . t('Install Facebook connector for this account.') . '</a>'; $o .= '</div>'; } if($fb_installed) { $o .= '<div id="facebook-disable-wrapper">'; $o .= '<a href="' . $a->get_baseurl() . '/facebook/remove' . '">' . t('Remove Facebook connector') . '</a></div>'; $o .= '<div id="facebook-post-default-form">'; $o .= '<form action="facebook" method="post" >'; $post_by_default = get_pconfig(local_user(),'facebook','post_by_default'); $checked = (($post_by_default) ? ' checked="checked" ' : ''); $o .= '<input type="checkbox" name="post_by_default" value="1"' . $checked . '/>' . ' ' . t('Post to Facebook by default') . '<br />'; $o .= '<input type="submit" name="submit" value="' . t('Submit') . '" /></form></div>'; } return $o; } function facebook_install() { register_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook'); register_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets'); register_hook('plugin_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings'); register_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron'); } function facebook_uninstall() { unregister_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook'); unregister_hook('jot_networks', 'addon/facebook/facebook.php', 'facebook_jot_nets'); unregister_hook('plugin_settings', 'addon/facebook/facebook.php', 'facebook_plugin_settings'); unregister_hook('cron', 'addon/facebook/facebook.php', 'facebook_cron'); } function facebook_cron($a,$b) { $last = get_config('facebook','last_poll'); if($last) { $next = $last + 3600; if($next > time()) return; } logger('facebook_cron'); set_config('facebook','last_poll', time()); $r = q("SELECT * FROM `pconfig` WHERE `cat` = 'facebook' AND `k` = 'post' AND `v` = '1' "); if(count($r)) { foreach($r as $rr) { // check for new friends once a day $last_friend_check = get_pconfig($rr['uid'],'facebook','friend_check'); if($last_friend_check) $next_friend_check = $last_friend_check + 86400; if($next_friend_check <= time()) { fb_get_friends($rr['uid']); set_pconfig($rr['uid'],'facebook','friend_check',time()); } fb_consume_all($rr['uid']); } } } function facebook_plugin_settings(&$a,&$b) { $b .= '<div class="settings-block">'; $b .= '<h3>' . t('Facebook') . '</h3>'; $b .= '<a href="facebook">' . t('Facebook Connector Settings') . '</a><br />'; $b .= '</div>'; } function facebook_jot_nets(&$a,&$b) { if(! local_user()) return; $fb_post = get_pconfig(local_user(),'facebook','post'); if(intval($fb_post) == 1) { $fb_defpost = get_pconfig(local_user(),'facebook','post_by_default'); $selected = ((intval($fb_defpost) == 1) ? ' checked="checked" ' : ''); $b .= '<div class="profile-jot-net"><input type="checkbox" name="facebook_enable"' . $selected . 'value="1" /> ' . t('Post to Facebook') . '</div>'; } } function facebook_post_hook(&$a,&$b) { /** * Post to Facebook stream */ require_once('include/group.php'); logger('Facebook post'); $reply = false; $likes = false; if((local_user()) && (local_user() == $b['uid'])) { if($b['parent']) { $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1", intval($b['parent']), intval(local_user()) ); if(count($r) && substr($r[0]['uri'],0,4) === 'fb::') $reply = substr($r[0]['uri'],4); else return; logger('facebook reply id=' . $reply); } if($b['private'] && $reply == false) { $allow_people = expand_acl($b['allow_cid']); $allow_groups = expand_groups(expand_acl($b['allow_gid'])); $deny_people = expand_acl($b['deny_cid']); $deny_groups = expand_groups(expand_acl($b['deny_gid'])); $recipients = array_unique(array_merge($allow_people,$allow_groups)); $deny = array_unique(array_merge($deny_people,$deny_groups)); $allow_str = dbesc(implode(', ',$recipients)); $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $allow_str ) AND `network` = 'face'"); $allow_arr = array(); if(count($r)) foreach($r as $rr) $allow_arr[] = $rr['notify']; $deny_str = dbesc(implode(', ',$deny)); $r = q("SELECT `notify` FROM `contact` WHERE `id` IN ( $deny_str ) AND `network` = 'face'"); $deny_arr = array(); if(count($r)) foreach($r as $rr) $deny_arr[] = $rr['notify']; if(count($deny_arr) && (! count($allow_arr))) { // One or more FB folks were denied access but nobody on FB was specifically allowed access. // This might cause the post to be open to public on Facebook, but only to selected members // on another network. Since this could potentially leak a post to somebody who was denied, // we will skip posting it to Facebook with a slightly vague but relevant message that will // hopefully lead somebody to this code comment for a better explanation of what went wrong. notice( t('Post to Facebook cancelled because of multi-network access permission conflict.') . EOL); return; } // if it's a private message but no Facebook members are allowed or denied, skip Facebook post if((! count($allow_arr)) && (! count($deny_arr))) return; } if($b['verb'] == ACTIVITY_LIKE) $likes = true; $appid = get_config('facebook', 'appid' ); $secret = get_config('facebook', 'appsecret' ); if($appid && $secret) { logger('facebook: have appid+secret'); $fb_post = intval(get_pconfig(local_user(),'facebook','post')); $fb_enable = (($fb_post && x($_POST,'facebook_enable')) ? intval($_POST['facebook_enable']) : 0); $fb_token = get_pconfig(local_user(),'facebook','access_token'); logger('facebook: $fb_post: ' . $fb_post . ' $fb_enable: ' . $fb_enable . ' $fb_token: ' . $fb_token,LOGGER_DEBUG); // post to facebook if it's a public post and we've ticked the 'post to Facebook' box, // or it's a private message with facebook participants // or it's a reply or likes action to an existing facebook post if($fb_post && $fb_token && ($fb_enable || $b['private'] || $reply)) { logger('facebook: able to post'); require_once('library/facebook.php'); require_once('include/bbcode.php'); $msg = $b['body']; logger('Facebook post: original msg=' . $msg, LOGGER_DATA); // make links readable before we strip the code $msg = preg_replace("/\[url=(.+?)\](.+?)\[\/url\]/is",'$2 $1',$msg); $msg = preg_replace("/\[img\](.+?)\[\/img\]/is", t('Image: ') . '$1',$msg); $msg = trim(strip_tags(bbcode($msg))); $msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8'); if (strlen($msg) > FACEBOOK_MAXPOSTLEN) { $shortlink = ""; require_once('library/slinky.php'); $display_url = $a->get_baseurl() . '/display/' . $a->user['nickname'] . '/' . $b['id']; $slinky = new Slinky( $display_url ); // setup a cascade of shortening services // try to get a short link from these services // in the order ur1.ca, trim, id.gd, tinyurl $slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) ); $shortlink = $slinky->short(); // the new message will be shortened such that "... $shortlink" // will fit into the character limit $msg = substr($msg, 0, FACEBOOK_MAXPOSTLEN - strlen($shortlink) - 4); $msg .= '... ' . $shortlink; } if(! strlen($msg)) return; logger('Facebook post: msg=' . $msg, LOGGER_DATA); if($likes) { $postvars = array('access_token' => $fb_token); } else { $postvars = array( 'access_token' => $fb_token, 'message' => $msg ); } if(($b['private']) && (! $b['parent'])) { $postvars['privacy'] = '{"value": "CUSTOM", "friends": "SOME_FRIENDS"'; if(count($allow_arr)) $postvars['privacy'] .= ',"allow": "' . implode(',',$allow_arr) . '"'; if(count($deny_arr)) $postvars['privacy'] .= ',"deny": "' . implode(',',$deny_arr) . '"'; $postvars['privacy'] .= '}'; } if(! $reply) { if($b['plink']) $postvars['actions'] = '{"name": "' . t('View on Friendika') . '", "link": "' . $b['plink'] . '"}'; } if($reply) { $url = 'https://graph.facebook.com/' . $reply . '/' . (($likes) ? 'likes' : 'comments'); } else { $url = 'https://graph.facebook.com/me/feed'; } logger('facebook: post to ' . $url); logger('facebook: postvars: ' . print_r($postvars,true)); $x = post_url($url, $postvars); $retj = json_decode($x); if($retj->id) { q("UPDATE `item` SET `extid` = '%s' WHERE `id` = %d LIMIT 1", dbesc($retj->id), intval($b['id']) ); } logger('Facebook post returns: ' . $x, LOGGER_DEBUG); } } } } function fb_consume_all($uid) { require_once('include/items.php'); $access_token = get_pconfig($uid,'facebook','access_token'); if(! $access_token) return; $s = fetch_url('https://graph.facebook.com/me/feed?access_token=' . $access_token); if($s) { $j = json_decode($s); logger('fb_consume_stream: wall: ' . print_r($j,true), LOGGER_DATA); fb_consume_stream($uid,$j,true); } $s = fetch_url('https://graph.facebook.com/me/home?access_token=' . $access_token); if($s) { $j = json_decode($s); logger('fb_consume_stream: feed: ' . print_r($j,true), LOGGER_DATA); fb_consume_stream($uid,$j,false); } } function fb_consume_stream($uid,$j,$wall = false) { $a = get_app(); $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1", intval($uid) ); $user = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid) ); if(count($user)) $my_local_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname']; $self_id = get_pconfig($uid,'facebook','self_id'); if(! count($j->data) || (! strlen($self_id))) return; foreach($j->data as $entry) { logger('fb_consume: entry: ' . print_r($entry,true), LOGGER_DATA); $datarray = array(); $we_posted = false; $app = $entry->application; if($app->id == get_config('facebook','appid') && $wall) $we_posted = true; $r = q("SELECT * FROM `item` WHERE ( `uri` = '%s' OR `extid` = '%s') AND `uid` = %d LIMIT 1", dbesc('fb::' . $entry->id), dbesc('fb::' . $entry->id), intval($uid) ); if(count($r)) { $post_exists = true; $orig_post = $r[0]; $top_item = $r[0]['id']; } else { $post_exists = false; $orig_post = null; } if(! $orig_post) { $datarray['gravity'] = 0; $datarray['uid'] = $uid; $datarray['wall'] = (($wall) ? 1 : 0); $datarray['uri'] = $datarray['parent-uri'] = 'fb::' . $entry->id; $from = $entry->from; if($from->id == $self_id) $datarray['contact-id'] = $self[0]['id']; else { $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1", dbesc($from->id), intval($uid) ); if(count($r)) $datarray['contact-id'] = $r[0]['id']; } $datarray['verb'] = ACTIVITY_POST; if($wall) { $datarray['owner-name'] = $self[0]['name']; $datarray['owner-link'] = $self[0]['url']; $datarray['owner-avatar'] = $self[0]['thumb']; } $datarray['author-name'] = $from->name; $datarray['author-link'] = 'http://facebook.com/profile.php?id=' . $from->id; $datarray['author-avatar'] = 'https://graph.facebook.com/' . $from->id . '/picture'; $datarray['plink'] = $datarray['author-link'] . '&v=wall&story_fbid=' . substr($entry->id,strpos($entry->id,'_') + 1); $datarray['body'] = $entry->message; if($entry->picture) $datarray['body'] .= "\n\n" . '[img]' . $entry->picture . '[/img]'; if($entry->link) $datarray['body'] .= "\n" . linkify($entry->link); if($entry->name) $datarray['body'] .= "\n" . $entry->name; if($entry->caption) $datarray['body'] .= "\n" . $entry->caption; if($entry->description) $datarray['body'] .= "\n" . $entry->description; $datarray['created'] = datetime_convert('UTC','UTC',$entry->created_time); $datarray['edited'] = datetime_convert('UTC','UTC',$entry->updated_time); if($entry->privacy && $entry->privacy->value !== 'EVERYONE') $datarray['private'] = 1; $top_item = item_store($datarray); $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1", intval($top_item), intval($uid) ); if(count($r)) $orig_post = $r[0]; } $likers = $entry->likes->data; $comments = $entry->comments->data; if(is_array($likers)) { foreach($likers as $likes) { $r = q("SELECT * FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `verb` = '%s' AND `author-link` = '%s' LIMIT 1", dbesc('fb::' . $entry->id), intval($uid), dbesc(ACTIVITY_LIKE), dbesc('http://facebook.com/profile.php?id=' . $likes->id) ); if(count($r)) continue; $likedata = array(); $likedata['parent'] = $top_item; $likedata['verb'] = ACTIVITY_LIKE; $likedata['gravity'] = 3; $likedata['uid'] = $uid; $likedata['wall'] = (($wall) ? 1 : 0); $likedata['uri'] = item_new_uri($a->get_baseurl(), $uid); $likedata['parent-uri'] = 'fb::' . $entry->id; if($likes->id == $self_id) $likedata['contact-id'] = $self[0]['id']; else { $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1", dbesc($likes->id), intval($uid) ); if(count($r)) $likedata['contact-id'] = $r[0]['id']; } if(! x($likedata,'contact-id')) $likedata['contact-id'] = $orig_post['contact-id']; $likedata['verb'] = ACTIVITY_LIKE; $likedata['author-name'] = $likes->name; $likedata['author-link'] = 'http://facebook.com/profile.php?id=' . $likes->id; $likedata['author-avatar'] = 'https://graph.facebook.com/' . $likes->id . '/picture'; $author = '[url=' . $likedata['author-link'] . ']' . $likedata['author-name'] . '[/url]'; $objauthor = '[url=' . $orig_post['author-link'] . ']' . $orig_post['author-name'] . '[/url]'; $post_type = t('status'); $plink = '[url=' . $orig_post['plink'] . ']' . $post_type . '[/url]'; $likedata['object-type'] = ACTIVITY_OBJ_NOTE; $likedata['body'] = sprintf( t('%1$s likes %2$s\'s %3$s'), $author, $objauthor, $plink); $likedata['object'] = '<object><type>' . ACTIVITY_OBJ_NOTE . '</type><local>1</local>' . '<id>' . $orig_post['uri'] . '</id><link>' . xmlify('<link rel="alternate" type="text/html" href="' . $orig_post['plink'] . '">') . '</link><title>' . $orig_post['title'] . '</title><content>' . $orig_post['body'] . '</content></object>'; $item = item_store($likedata); } } if(is_array($comments)) { foreach($comments as $cmnt) { $r = q("SELECT * FROM `item` WHERE `uid` = %d AND ( `uri` = '%s' OR `extid` = '%s' ) LIMIT 1", intval($uid), dbesc('fb::' . $cmnt->id), dbesc('fb::' . $cmnt->id) ); if(count($r)) continue; $cmntdata = array(); $cmntdata['parent'] = $top_item; $cmntdata['verb'] = ACTIVITY_POST; $cmntdata['gravity'] = 6; $cmntdata['uid'] = $uid; $cmntdata['wall'] = (($wall) ? 1 : 0); $cmntdata['uri'] = 'fb::' . $cmnt->id; $cmntdata['parent-uri'] = 'fb::' . $entry->id; if($cmnt->from->id == $self_id) { $cmntdata['contact-id'] = $self[0]['id']; } elseif(is_array($orig_post) && (x($orig_post,'contact-id'))) $cmntdata['contact-id'] = $orig_post['contact-id']; else { $r = q("SELECT * FROM `contact` WHERE `notify` = '%s' AND `uid` = %d LIMIT 1", dbesc($cmnt->from->id), intval($uid) ); if(count($r)) $cmntdata['contact-id'] = $r[0]['id']; } $cmntdata['created'] = datetime_convert('UTC','UTC',$cmnt->created_time); $cmntdata['edited'] = datetime_convert('UTC','UTC',$cmnt->created_time); $cmntdata['verb'] = ACTIVITY_POST; $cmntdata['author-name'] = $cmnt->from->name; $cmntdata['author-link'] = 'http://facebook.com/profile.php?id=' . $cmnt->from->id; $cmntdata['author-avatar'] = 'https://graph.facebook.com/' . $cmnt->from->id . '/picture'; $cmntdata['body'] = $cmnt->message; $item = item_store($cmntdata); } } } }