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helpers_cla.php
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helpers_cla.php
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<?php
use Facebook\FacebookSession;
require 'helpers_all.php';
define('dbu', 'admin6QHMFM1');
define('dbpw', 'fsghjRCP6qW3');
define('dbh', 'localhost');
define('dbn', 'cla_db');
/* BEGIN SETUP MYSQL */
/* BEGIN SETUP MYSQL */
/* BEGIN SETUP MYSQL */
if($dbc = mysql_connect(dbh,dbu,dbpw))
{
if(!mysql_select_db(dbn))
{
trigger_error("Could not select the database");
$ret = array(
'success' => false,
'message' => "Unknown error 1"
);
echo json_encode($ret);
return json_encode($ret);
exit();
}
}
else
{
trigger_error("Could not connect");
$ret = array(
'success' => false,
'message' => "Unknown error 2"
);
echo json_encode($ret);
return json_encode($ret);
exit();
}
/* END SETUP MYSQL */
/* END SETUP MYSQL */
/* END SETUP MYSQL */
function id_by_token($token)
{
$graph = curl_get_contents('https://graph.facebook.com/me?fields=id&access_token='.$token);
//echo $graph;
$json = json_decode($graph, true);
if (array_key_exists('id', $json)) {
return $json['id'];
}
return NULL;
}
/* Verify that a validation number exists (used by CTF, but NEVER send unencrypted, use the API) */
function verifyValidationNum($validation_num) {
//Check if user already requested ID
$query = sprintf("SELECT valid_num FROM cla_valid_nums WHERE valid_num = '%s'",
mysql_real_escape_string($validation_num));
$result = mysql_query($query);
if(mysql_num_rows($result) != 0) {
return true;
} else {
return false;
}
}
function genValidationNumberAndStore($userid)
{
//Check if user already requested ID
$query = sprintf("SELECT user_id FROM cla_valid_nums WHERE user_id = '%s'",
mysql_real_escape_string($userid));
$result = mysql_query($query);
if(mysql_num_rows($result) != 0) {
return NULL;
}
//select new random number
$tmp = openssl_random_pseudo_bytes(50, $cstrong);
$random_number = bin2hex($tmp);
//Will fail if not unique
$query = sprintf("INSERT INTO `cla_valid_nums` (user_id,valid_num) VALUES ('%s','".$random_number."')",
mysql_real_escape_string($userid));
$successful_insertion = mysql_query($query);
if ($successful_insertion) {
return $random_number;
} else {
return newValidationNumber();
}
}
/*
*********************************************
*********************************************
*********************************************
*********************************************
*********************************************
**********Deprecated Functions**************
*********************************************
*********************************************
**************Following Here*****************
*********************************************
*********************************************
*********************************************
*********************************************
*********************************************
*********************************************
*********************************************
*/
function validToken($token)
{
FacebookSession::setDefaultApplication('399558776852663', '240b7a471130f9c9cc75dbcd634933b3');
// If you already have a valid access token:
$session = new FacebookSession($token);
// To validate the session:
try
{
$session->validate();
return true;
}
catch (FacebookRequestException $ex)
{
// Session not valid, Graph API returned an exception with the reason.
//echo $ex->getMessage();
return false;
}
catch (\Exception $ex)
{
// Graph API returned info, but it may mismatch the current app or have expired.
//echo $ex->getMessage();
return false;
}
}
?>