3 * A PhpRequirements filter for miners
5 * @author Roland Haeder <webmaster@shipsimu.org>
7 * @copyright Copyright (c) 2014 Miner Developer Team
8 * @license GNU GPL 3.0 or any newer version
9 * @link http://www.shipsimu.org
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 class MinerPhpRequirementsFilter extends BaseMinerFilter implements Filterable {
26 * Protected constructor
30 protected function __construct () {
31 // Call parent constructor
32 parent::__construct(__CLASS__);
36 * Creates an instance of this filter class
38 * @return $filterInstance An instance of this filter class
40 public static final function createMinerPhpRequirementsFilter () {
42 $filterInstance = new MinerPhpRequirementsFilter();
44 // Return the instance
45 return $filterInstance;
49 * Executes the filter with given request and response objects
51 * @param $requestInstance An instance of a class with an Requestable interface
52 * @param $responseInstance An instance of a class with an Responseable interface
54 * @throws FilterChainException If a required PHP function is not available
55 * @todo Add more test and try to add an extra message to the thrown exception
57 public function execute (Requestable $requestInstance, Responseable $responseInstance) {
58 // By default, the requirement check is passed and zero checks are failed
62 // Socket support is essential...
63 if (!function_exists('socket_create')) {
69 // If scrypt() is not found (ext-scrypt) then the "Hubcoins reward" is not working
70 if ((extension_loaded('scrypt')) && (is_callable('scrypt'))) {
72 self::createDebugInstance(__CLASS__)->debugOutput('FILTER[' . __METHOD__ . ':' . __LINE__ . '] ext-scrypt and a callable scrypt() function found. "Hubcoin reward" feature enabled.');
73 $this->getConfigInstance()->setConfigEntry('extension_scrypt_loaded', TRUE);
75 // Not working (not all have ext-scrypt installed
76 self::createDebugInstance(__CLASS__)->debugOutput('FILTER[' . __METHOD__ . ':' . __LINE__ . '] ext-scrypt not found or scrypt() function not found. "Hubcoin reward" feature disabled.');
79 // Are all tests passed?
80 if ($checkPassed === FALSE) {
82 throw new FilterChainException($this, self::FILTER_CHAIN_INTERCEPTED);