<?php
/*
 * MolDynGrid portal hard core for interfacing with clients
 * This is en entry point to serve requests
 */

require("init.php");

function ispost ($idx, $defval = NULL) {
    if ( isset ( $_POST[$idx] ) ) return $_POST[$idx];
    return $defval;
}
// User authentication first
// Proxy certificate used for authentication
if(isset($_FILES['userproxy'])){
    // 
    // Proxy-certificate authentication first
    //
    Logger::Debug("User proxy file received. Starting authorization procedure.");
    $reqproxy = new Proxy($_FILES['userproxy']['tmp_name']);
    if ( ! $reqproxy->parseProxy() ) 
        Logger::Fatal("Provided proxy certificate is invalid.");
    if ( ! isset($_POST['request']) ) 
        Logger::Fatal("There is no request for MDS core found.");
    if ( ! $reqproxy->isVOMSAC() ) 
        Logger::Fatal("Proxy certficates without VOMS extension is not supported.");
    // create User object in accordance to proxy certificate
    Logger::Debug("Proxy certificate successfully checked. Obtaining owner's info.");
    $mds_user = new User($reqproxy);
    Logger::Info("User %s successfully authenticated.", $mds_user->getName());
    // database proxy store/update procedure
    Logger::Debug("Updating user proxy certificate stored in database.");
    $mds_user->updateDBProxy();

    //
    // Process requests
    //
    switch ($_POST['request']) {
        case "getuuid":
            echo 'MDS_UUID=' . DB::QueryResultValue('SELECT UUID()') . PHP_EOL;
            break;
        case "addjob": 
            if (! isset($_POST['uuid'])) Logger::Fatal("There is no job UUID in the request");
            if (! isset($_FILES['params'])) Logger::Fatal("Missing required params file");
            if (! isset($_FILES['jobidf'])) Logger::Fatal("Missing required grid job ID file");
            // construct new job
            $job = new Job($_POST['uuid']);
            $job->fromREQ(
                ispost('jobname'),
                ispost('walltime',3600),
                ispost('cpus',1),
                ispost('software',MDS_DEF_SOFT),
                ispost('infrastructure',MDS_DEF_INFR),
                $mds_user,
                $_FILES['params']['tmp_name'],
                $_FILES['jobidf']['tmp_name']
            );
            $r = $job->saveNewDBJob();
            if ($r) echo 'STATUS=OK' . PHP_EOL;
            break;
        case "statusupdate":
            if (! isset($_POST['uuid'])) Logger::Fatal("There is no job UUID in the request");
            $job = new Job($_POST['uuid']);
            $job->updateJobStatus(
                ispost('status',255),
                ispost('details')
            );
            break;
    }
} else Logger::Fatal("Proxy certificate is missing but required for authentication.");

?>