gnu-social/lib/facebookutil.php

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<?php
/*
* Laconica - a distributed open-source microblogging tool
* Copyright (C) 2008, Controlez-Vous, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
require_once INSTALLDIR.'/extlib/facebook/facebook.php';
require_once INSTALLDIR.'/lib/facebookaction.php';
require_once INSTALLDIR.'/lib/noticelist.php';
define("FACEBOOK_SERVICE", 2); // Facebook is foreign_service ID 2
define("FACEBOOK_NOTICE_PREFIX", 1);
define("FACEBOOK_PROMPTED_UPDATE_PREF", 2);
// Gets all the notices from users with a Facebook link since a given ID
function getFacebookNotices($since)
{
$qry = 'SELECT notice.* ' .
'FROM notice ' .
'JOIN foreign_link ' .
'WHERE notice.profile_id = foreign_link.user_id ' .
'AND foreign_link.service = 2';
// XXX: What should the limit be?
//static function getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since) {
return Notice::getStreamDirect($qry, 0, 1000, 0, 0, null, $since);
}
function getFacebook()
{
$apikey = common_config('facebook', 'apikey');
$secret = common_config('facebook', 'secret');
return new Facebook($apikey, $secret);
}
function updateProfileBox($facebook, $flink, $notice) {
$fbaction = new FacebookAction($output='php://output', $indent=true, $facebook, $flink);
$fbaction->updateProfileBox($notice);
}
function isFacebookBound($notice, $flink) {
// If the user does not want to broadcast to Facebook, move along
if (!($flink->noticesync & FOREIGN_NOTICE_SEND == FOREIGN_NOTICE_SEND)) {
common_log(LOG_INFO, "Skipping notice $notice->id " .
'because user has FOREIGN_NOTICE_SEND bit off.');
return false;
}
$success = false;
// If it's not a reply, or if the user WANTS to send @-replies...
if (!preg_match('/@[a-zA-Z0-9_]{1,15}\b/u', $notice->content) ||
($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY)) {
$success = true;
// The two condition below are deal breakers:
// Avoid a loop
if ($notice->source == 'Facebook') {
common_log(LOG_INFO, "Skipping notice $notice->id because its " .
'source is Facebook.');
$success = false;
}
$facebook = getFacebook();
$fbuid = $flink->foreign_id;
try {
// Check to see if the user has given the FB app status update perms
$result = $facebook->api_client->
users_hasAppPermission('status_update', $fbuid);
if ($result != 1) {
$user = $flink->getUser();
$msg = "Can't send notice $notice->id to Facebook " .
"because user $user->nickname hasn't given the " .
'Facebook app \'status_update\' permission.';
common_log(LOG_INFO, $msg);
$success = false;
}
} catch(FacebookRestClientException $e){
common_log(LOG_ERROR, $e->getMessage());
$success = false;
}
}
return $success;
}
function facebookBroadcastNotice($notice)
{
$facebook = getFacebook();
$flink = Foreign_link::getByUserID($notice->profile_id, FACEBOOK_SERVICE);
$fbuid = $flink->foreign_id;
if (isFacebookBound($notice, $flink)) {
$status = null;
// Get the status 'verb' (prefix) the user has set
try {
$prefix = $facebook->api_client->
data_getUserPreference(FACEBOOK_NOTICE_PREFIX, $fbuid);
$status = "$prefix $notice->content";
} catch(FacebookRestClientException $e) {
common_log(LOG_ERROR, $e->getMessage());
return false;
}
// Okay, we're good to go!
try {
$facebook->api_client->users_setStatus($status, $fbuid, false, true);
updateProfileBox($facebook, $flink, $notice);
} catch(FacebookRestClientException $e) {
common_log(LOG_ERROR, $e->getMessage());
return false;
// Should we remove flink if this fails?
}
}
return true;
}