Create token.php

resources/classes/token.php

@@ -0,0 +1,108 @@
+<?php
+/*
+	FusionPBX
+	Version: MPL 1.1
+
+	The contents of this file are subject to the Mozilla Public License Version
+	1.1 (the "License"); you may not use this file except in compliance with
+	the License. You may obtain a copy of the License at
+	http://www.mozilla.org/MPL/
+
+	Software distributed under the License is distributed on an "AS IS" basis,
+	WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+	for the specific language governing rights and limitations under the
+	License.
+
+	The Original Code is FusionPBX
+
+	The Initial Developer of the Original Code is
+	Mark J Crane <markjcrane@fusionpbx.com>
+	Portions created by the Initial Developer are Copyright (C) 2019
+	the Initial Developer. All Rights Reserved.
+
+	Contributor(s):
+	Mark J Crane <markjcrane@fusionpbx.com>
+*/
+
+/**
+ * captcha class
+ *
+ * @method string get
+ */
+class token {
+
+	/**
+	* Called when the object is created
+	*/
+	//public $code;
+
+	/**
+	* Class constructor
+	*/
+	public function __construct() {
+
+	}
+
+	/**
+	 * Called when there are no references to a particular object
+	 * unset the variables used in the class
+	 */
+	public function __destruct() {
+		foreach ($this as $key => $value) {
+			unset($this->$key);
+		}
+	}
+
+	/**
+	 * Create the token
+	 * @var string $key
+	 */
+	public function create($key) {
+
+		//create a token and save in the token session array
+		$_SESSION['tokens'][$key]['name'] = hash_hmac('sha256', $key, bin2hex(random_bytes(32)));
+		$_SESSION['tokens'][$key]['hash'] = hash_hmac('sha256', $key, bin2hex(random_bytes(32)));
+
+		//send the hash
+		return $_SESSION['tokens'][$key]['hash'];
+	}
+
+	/**
+	 * validate the token
+	 * @var string $key
+	 */
+	public function validate($key, $value) {
+
+		//compare the hashed tokens
+		if (hash_equals($_SESSION['tokens'][$key]['hash'], $value)) {
+			return true;
+		}
+		else {
+			return false;
+		}
+
+	}
+
+}
+
+/*
+
+//create token
+$token = new token;
+$token_hash = $token->create('/app/users/user_edit.php');
+
+echo "<input type='hidden' name='token' value='".$token_hash."'>";
+
+//------------------------
+
+//validate the token
+$token = new token;
+$token_valid = $token->validate('/app/users/user_edit.php', $_POST['token']);
+if (!$token_valid) {
+	echo "access denied";
+	exit;
+}
+
+*/
+
+?>