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','true'); } // todo: is this a browser session or a server session? where do we go? } } 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); } $appid = get_config('facebook','appid'); if(! $appid) { notify( t('Facebook API key is missing.') . EOL); return ''; } $o .= '

' . t('Facebook Connect') . '

'; $o .= '
'; $o .= '' . t('Install Facebook posting') . '
'; $o .= '' . t('Remove Facebook posting') . '
'; return $o; } function facebook_install() { register_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook'); } function facebook_uninstall() { unregister_hook('post_local_end', 'addon/facebook/facebook.php', 'facebook_post_hook'); } function facebook_post_hook(&$a,&$b) { /** * Post to Facebook stream */ logger('Facebook post'); if((local_user()) && (local_user() == $b['uid']) && (! $b['private']) && (! $b['parent'])) { $appid = get_config('facebook', 'appid' ); $secret = get_config('facebook', 'appsecret' ); if($appid && $secret) { $fb_post = get_pconfig(local_user(),'facebook','post'); $fb_token = get_pconfig(local_user(),'facebook','access_token'); if($fb_post && $fb_token) { require_once('library/facebook.php'); require_once('include/bbcode.php'); $msg = $b['body']; logger('Facebook post2: 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))); if (strlen($msg) > FACEBOOK_MAXPOSTLEN) { $shortlink = ""; require_once('addon/twitter/slinky.php'); $display_url = $a->get_baseurl() . '/display/' . $a->user['nickname'] . '/' . $b['id']; $slinky = new Slinky( $posturl ); // 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); $postvars = array('access_token' => $fb_token, 'message' => $msg); $x = post_url('https://graph.facebook.com/me/feed', $postvars); logger('Facebook post returns: ' . $x, LOGGER_DEBUG); } } } }