<?php
/**
 *  Copyright (C) 2021  Double Bastion LLC
 *
 *  This file is part of Roundpin, which is licensed under the
 *  GNU Affero General Public License Version 3.0. The license terms
 *  are detailed in the "LICENSE.txt" file located in the root directory.
 */

session_start();

 // header('Set-Cookie: PHPSESSID= ' . session_id() . '; SameSite=strict; Secure=true; HttpOnly=true;');

if (isset($_POST['vconfextension']) && $_POST['vconfextension'] != '' && isset($_POST['encextenpass']) && $_POST['encextenpass'] != '' && isset($_POST['conferenceext']) && 
    $_POST['conferenceext'] != '' && isset($_POST['clrextension']) && $_POST['clrextension'] != '') {

    define('ACCESSCONST', TRUE);

    require('db-connect.php');

    $vconfExtension = $_POST['vconfextension'];
    $extenPassEnc = $_POST['encextenpass'];
    $conferenceExt = $_POST['conferenceext'];

    $callerExt = $_POST['clrextension'];
    $callerExtMod = substr($callerExt, 0, -5);

    // Check if the received external user extension, the corresponding encrypted password and the extension of the conference, match the data in the 'external_users' table
    $query = $mysqli->prepare("SELECT id, exten_for_external, exten_for_ext_pass, conf_extension FROM external_users WHERE exten_for_external = ? AND exten_for_ext_pass = ? AND conf_extension = ?");
    $query->bind_param("sss", $vconfExtension, $extenPassEnc, $conferenceExt);
    $query->execute();
    $extqueryres = $query->get_result()->fetch_array();

    if (!$extqueryres) {

        http_response_code(400);
        exit();

    } else {

	    if ($callerExt != null && $callerExt != 'undefined' && $callerExt != '') {

		$query2 = $mysqli->prepare("SELECT id, wss_server, profile_name, sip_username, display_vconf_user FROM app_users WHERE sip_username = ?");
		$query2->bind_param("s", $callerExtMod);
		$query2->execute();
		$userpref = $query2->get_result()->fetch_assoc();

		if ($userpref) {

		    $userDesc = $userpref['profile_name'];
		    $nameDisplay = $userpref['display_vconf_user'];
		    $messagetosend = 'success';

		} else {

		    $query3 = $mysqli->prepare("SELECT id, profile_name, exten_for_external, display_vconf_user FROM external_users WHERE exten_for_external = ?");
		    $query3->bind_param("s", $callerExt);
		    $query3->execute();
		    $userdisplay = $query3->get_result()->fetch_assoc();

		    if ($userdisplay) {

		        $userDesc = $userdisplay['profile_name'];
			$nameDisplay = $userdisplay['display_vconf_user'];
			$messagetosend = 'success';

		    } else { $userDesc = null; $nameDisplay = null; $messagetosend = "An error occurred while getting the user data!"; }
		}
	    }
  
    }

    $response = ['result' => $messagetosend, 'userdescription' => $userDesc, 'namedisplay' => $nameDisplay];

    echo json_encode($response);

} else { header("Location: ../login.php"); }