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<?php |
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defined('ROOT_PATH') || exit('Access denied'); |
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/** |
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* TNH Framework |
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* |
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* A simple PHP framework using HMVC architecture |
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* |
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* This content is released under the MIT License (MIT) |
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* |
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* Copyright (c) 2017 TNH Framework |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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/** |
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* @file common.php |
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* |
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* Contains most of the commons functions used by the system |
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* |
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* @package core |
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* @author TNH Framework team |
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* @copyright Copyright (c) 2017 |
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* @license http://opensource.org/licenses/MIT MIT License |
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* @link http://www.iacademy.cf |
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* @version 1.0.0 |
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* @filesource |
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*/ |
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/** |
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* This function is the class loader helper is used if the library "Loader" not yet loaded |
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* he load the class once |
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* @param string $class the class name to be loaded |
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* @param string $dir the directory where to find the class |
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* @param mixed $params the parameter to pass as argument to the constructor of the class |
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* @codeCoverageIgnore |
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* |
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* @return object the instance of the loaded class |
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*/ |
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function & class_loader($class, $dir = 'libraries', $params = null){ |
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//put the first letter of class to upper case |
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$class = ucfirst($class); |
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/* |
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TODO use the best method to get the Log instance |
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*/ |
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if ($class == 'Log') { |
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require_once CORE_CLASSES_PATH . 'Log.php'; |
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//can't use the instruction like "return new Log()" |
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//because we need return the reference instance of the loaded class. |
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$log = new Log(); |
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return $log; |
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} |
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static $classes = array(); |
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if (isset($classes[$class])) { |
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return $classes[$class]; |
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} |
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$found = false; |
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foreach (array(APPS_PATH, CORE_PATH) as $path) { |
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$file = $path . $dir . DS . $class . '.php'; |
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if (file_exists($file)) { |
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require_once $file; |
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//already found |
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$found = true; |
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break; |
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} |
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} |
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if (!$found) { |
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//can't use show_error() at this time because some dependencies not yet loaded |
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set_http_status_header(503); |
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echo 'Cannot find the class [' . $class . ']'; |
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die(); |
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} |
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//track of loaded classes |
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class_loaded($class); |
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//record the class instance |
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$classes[$class] = isset($params) ? new $class($params) : new $class(); |
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return $classes[$class]; |
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} |
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/** |
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* This function is the helper to record the loaded classes |
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* @param string $class the loaded class name |
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* @codeCoverageIgnore |
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* |
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* @return array the list of the loaded classes |
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*/ |
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function & class_loaded($class = null){ |
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static $list = array(); |
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if ($class !== null) { |
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$list[strtolower($class)] = $class; |
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} |
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return $list; |
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} |
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/** |
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* This function is used to load the configurations in the |
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* case the "Config" library not yet loaded |
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* @codeCoverageIgnore |
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* |
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* @return array the configurations values |
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*/ |
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function & load_configurations(){ |
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static $config; |
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if (empty($config)) { |
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$file = CONFIG_PATH . 'config.php'; |
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$found = false; |
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if (file_exists($file)) { |
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require_once $file; |
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$found = true; |
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} |
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if (!$found) { |
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set_http_status_header(503); |
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echo 'Unable to find the configuration file [' . $file . ']'; |
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die(); |
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} |
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} |
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return $config; |
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} |
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/** |
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* This function is the helper to get the config value in case the "Config" library not yet loaded |
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* @param string $key the config item to get the vale |
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* @param mixed $default the default value to return if can't find the config item in the configuration |
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* @test |
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* |
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* @return mixed the config value |
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*/ |
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function get_config($key, $default = null) { |
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static $cfg; |
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if (empty($cfg)) { |
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$cfg[0] = & load_configurations(); |
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if(! is_array($cfg[0])){ |
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$cfg[0] = array(); |
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} |
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} |
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return array_key_exists($key, $cfg[0]) ? $cfg[0][$key] : $default; |
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} |
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/** |
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* This function displays an error message to the user and ends the |
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* execution of the script. |
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* |
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* @param string $msg the message to display |
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* @param string $title the message title: "error", "info", "warning", etc. |
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* @param boolean $logging either to save error in log |
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* @param string $logLevel the log level to use |
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* |
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* @codeCoverageIgnore |
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*/ |
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function show_error($msg, $title = 'error', $logging = true, $logLevel = 'ERROR') { |
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$title = strtoupper($title); |
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$data = array(); |
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$data['error'] = $msg; |
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$data['title'] = $title; |
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if ($logging) { |
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$log = & class_loader('Log', 'classes'); |
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$log->setLogger('APP::ERROR'); |
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$log->log($logLevel, strip_tags($msg)); |
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} |
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$response = & class_loader('Response', 'classes'); |
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$response->sendError($data); |
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die(); |
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} |
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/** |
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* Function defined for PHP error message handling |
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* |
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* @param int $errno the type of error for example: E_USER_ERROR, E_USER_WARNING, etc. |
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* @param string $errstr the error message |
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* @param string $errfile the file where the error occurred |
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* @param int $errline the line number where the error occurred |
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* @codeCoverageIgnore |
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* |
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* @return boolean |
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*/ |
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function fw_error_handler($errno, $errstr, $errfile, $errline) { |
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$isError = (((E_ERROR | E_COMPILE_ERROR | E_CORE_ERROR | E_USER_ERROR) & $errno) === $errno); |
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if ($isError) { |
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set_http_status_header(500); |
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} |
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$errorType = 'Error'; |
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$errorsType = array ( |
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E_ERROR => 'Error', |
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E_WARNING => 'Warning', |
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E_PARSE => 'Parsing Error', |
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E_NOTICE => 'Notice', |
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E_CORE_ERROR => 'Core Error', |
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E_CORE_WARNING => 'Core Warning', |
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E_COMPILE_ERROR => 'Compile Error', |
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E_COMPILE_WARNING => 'Compile Warning', |
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E_USER_ERROR => 'User Error', |
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E_USER_WARNING => 'User Warning', |
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E_USER_NOTICE => 'User Notice', |
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E_STRICT => 'Runtime Notice', |
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E_RECOVERABLE_ERROR => 'Catchable Fatal Error' |
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); |
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if (isset($errorsType[$errno])) { |
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$errorType = $errorsType[$errno]; |
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} |
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$errorText = 'An error is occurred in the file ' . substr($errfile, strlen(ROOT_PATH)) . ' at line ' . $errline . ' raison : ' . $errstr; |
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if ((error_reporting() & $errno) !== $errno) { |
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return; |
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} |
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if (str_ireplace(array('off', 'none', 'no', 'false', 'null'), '', ini_get('display_errors'))) { |
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show_error($errorText, 'PHP ' . $errorType); |
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} else { |
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$log = & class_loader('Log', 'classes'); |
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$log->setLogger('PHP ' . $errorType); |
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$log->critical($errorText); |
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} |
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if ($isError) { |
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die(); |
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} |
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return true; |
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} |
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/** |
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* Function defined for handling PHP exception error message, |
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* it displays an error message using the function "show_error" |
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* |
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* @param object $exception instance of the "Exception" class or a derived class |
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* @codeCoverageIgnore |
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* |
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* @return boolean |
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*/ |
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function fw_exception_handler($exception) { |
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$errorText = 'An exception is occured in file ' . substr($exception->getFile(), strlen(ROOT_PATH)) . ' at line ' . $exception->getLine() . ' raison : ' . $exception->getMessage(); |
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if (str_ireplace(array('off', 'none', 'no', 'false', 'null'), '', ini_get('display_errors'))) { |
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show_error($errorText, 'PHP Exception #' . $exception->getCode()); |
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} else { |
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$log = & class_loader('Log', 'classes'); |
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$log->setLogger('PHP Exception #' . $exception->getCode()); |
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$log->critical($errorText); |
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} |
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return true; |
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} |
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/** |
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* This function is used to run in shutdown situation of the script |
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* @codeCoverageIgnore |
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*/ |
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function fw_shudown_handler() { |
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$lastError = error_get_last(); |
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if (is_array($lastError) && |
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($lastError['type'] & (E_ERROR | E_PARSE | E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_COMPILE_WARNING))) { |
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fw_error_handler($lastError['type'], $lastError['message'], $lastError['file'], $lastError['line']); |
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} |
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} |
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/** |
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* Set the HTTP status header |
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* @param integer $code the HTTP status code |
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* @param string $text the HTTP status text |
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* |
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* @codeCoverageIgnore |
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*/ |
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function set_http_status_header($code = 200, $text = null) { |
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if (empty($text)) { |
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$httpStatus = array( |
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100 => 'Continue', |
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101 => 'Switching Protocols', |
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200 => 'OK', |
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201 => 'Created', |
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202 => 'Accepted', |
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203 => 'Non-Authoritative Information', |
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204 => 'No Content', |
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205 => 'Reset Content', |
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206 => 'Partial Content', |
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300 => 'Multiple Choices', |
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301 => 'Moved Permanently', |
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302 => 'Found', |
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303 => 'See Other', |
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304 => 'Not Modified', |
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305 => 'Use Proxy', |
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307 => 'Temporary Redirect', |
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400 => 'Bad Request', |
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401 => 'Unauthorized', |
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402 => 'Payment Required', |
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403 => 'Forbidden', |
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404 => 'Not Found', |
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405 => 'Method Not Allowed', |
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406 => 'Not Acceptable', |
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407 => 'Proxy Authentication Required', |
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408 => 'Request Timeout', |
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409 => 'Conflict', |
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410 => 'Gone', |
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411 => 'Length Required', |
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412 => 'Precondition Failed', |
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413 => 'Request Entity Too Large', |
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414 => 'Request-URI Too Long', |
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415 => 'Unsupported Media Type', |
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416 => 'Requested Range Not Satisfiable', |
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417 => 'Expectation Failed', |
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418 => 'I\'m a teapot', |
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500 => 'Internal Server Error', |
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501 => 'Not Implemented', |
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502 => 'Bad Gateway', |
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503 => 'Service Unavailable', |
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504 => 'Gateway Timeout', |
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505 => 'HTTP Version Not Supported', |
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); |
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if (isset($httpStatus[$code])) { |
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$text = $httpStatus[$code]; |
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} else { |
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show_error('No HTTP status text found for your code please check it.'); |
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} |
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} |
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if (strpos(php_sapi_name(), 'cgi') === 0) { |
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header('Status: ' . $code . ' ' . $text, TRUE); |
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} else { |
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$globals = & class_loader('GlobalVar', 'classes'); |
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$proto = 'HTTP/1.1'; |
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if ($globals->server('SERVER_PROTOCOL')) { |
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$proto = $globals->server('SERVER_PROTOCOL'); |
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} |
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header($proto . ' ' . $code . ' ' . $text, TRUE, $code); |
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} |
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} |
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338
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/** |
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* Check whether the protocol used is "https" or not |
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* That is, the web server is configured to use a secure connection. |
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* @codeCoverageIgnore |
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* |
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* @return boolean true if the web server uses the https protocol, false if not. |
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*/ |
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function is_https() { |
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/* |
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* some servers pass the "HTTPS" parameter in the server variable, |
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* if is the case, check if the value is "on", "true", "1". |
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*/ |
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$globals = & class_loader('GlobalVar', 'classes'); |
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if ($globals->server('HTTPS') && strtolower($globals->server('HTTPS')) !== 'off') { |
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return true; |
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} |
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if ($globals->server('HTTP_X_FORWARDED_PROTO') && $globals->server('HTTP_X_FORWARDED_PROTO') === 'https') { |
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|
return true; |
357
|
|
|
} |
358
|
|
|
if ($globals->server('HTTP_FRONT_END_HTTPS') && strtolower($globals->server('HTTP_FRONT_END_HTTPS')) !== 'off') { |
359
|
|
|
return true; |
360
|
|
|
} |
361
|
|
|
return false; |
362
|
|
|
} |
363
|
|
|
|
364
|
|
|
/** |
365
|
|
|
* This function is used to check the URL format of the given string argument. |
366
|
|
|
* The address is valid if the protocol is http, https, ftp, etc. |
367
|
|
|
* |
368
|
|
|
* @param string $url the URL address to check |
369
|
|
|
* @test |
370
|
|
|
* |
371
|
|
|
* @return boolean true if is a valid URL address or false. |
372
|
|
|
*/ |
373
|
|
|
function is_url($url) { |
374
|
|
|
return preg_match('/^(http|https|ftp):\/\/(.*)/', $url) == 1; |
375
|
|
|
} |
376
|
|
|
|
377
|
|
|
/** |
378
|
|
|
* Function defined to load controller |
379
|
|
|
* |
380
|
|
|
* @param string $controllerClass the controller class name to be loaded |
381
|
|
|
* @codeCoverageIgnore |
382
|
|
|
*/ |
383
|
|
|
function autoload_controller($controllerClass) { |
384
|
|
|
if (file_exists($path = APPS_CONTROLLER_PATH . $controllerClass . '.php')) { |
385
|
|
|
require_once $path; |
386
|
|
|
} |
387
|
|
|
} |
388
|
|
|
|
389
|
|
|
/** |
390
|
|
|
* Convert array attributes to string |
391
|
|
|
* |
392
|
|
|
* This function converts an associative array into HTML attributes. |
393
|
|
|
* For example : |
394
|
|
|
* $a = array('name' => 'Foo', 'type' => 'text'); => produces the following string: |
395
|
|
|
* name = "Foo" type = "text" |
396
|
|
|
* |
397
|
|
|
* @param array $attributes associative array to convert to a string attribute. |
398
|
|
|
* |
399
|
|
|
* @return string string of the HTML attribute. |
400
|
|
|
*/ |
401
|
|
|
function attributes_to_string(array $attributes) { |
402
|
|
|
$str = ' '; |
403
|
|
|
//we check that the array passed as an argument is not empty. |
404
|
|
|
if (!empty($attributes)) { |
405
|
|
|
foreach ($attributes as $key => $value) { |
406
|
|
|
$key = trim(htmlspecialchars($key)); |
407
|
|
|
$value = trim(htmlspecialchars($value)); |
408
|
|
|
/* |
409
|
|
|
* To predict the case where the string to convert contains the character " |
410
|
|
|
* we check if this is the case we add a slash to solve this problem. |
411
|
|
|
* For example: |
412
|
|
|
* $attr = array('placeholder' => 'I am a "puple"') |
413
|
|
|
* $str = attributes_to_string($attr); => placeholder = "I am a \"puple\"" |
414
|
|
|
*/ |
415
|
|
|
if ($value && strpos('"', $value) !== false) { |
416
|
|
|
$value = addslashes($value); |
417
|
|
|
} |
418
|
|
|
$str .= $key . ' = "' . $value . '" '; |
419
|
|
|
} |
420
|
|
|
} |
421
|
|
|
//remove the space after using rtrim() |
422
|
|
|
return rtrim($str); |
423
|
|
|
} |
424
|
|
|
|
425
|
|
|
|
426
|
|
|
/** |
427
|
|
|
* Function to stringfy PHP variable, useful in debug situation |
428
|
|
|
* |
429
|
|
|
* @param mixed $var the variable to stringfy |
430
|
|
|
* @codeCoverageIgnore |
431
|
|
|
* |
432
|
|
|
* @return string the stringfy value |
433
|
|
|
*/ |
434
|
|
|
function stringify_vars($var) { |
435
|
|
|
return print_r($var, true); |
436
|
|
|
} |
437
|
|
|
|
438
|
|
|
/** |
439
|
|
|
* Clean the user input |
440
|
|
|
* @param mixed $str the value to clean |
441
|
|
|
* @test |
442
|
|
|
* |
443
|
|
|
* @return mixed the sanitize value |
444
|
|
|
*/ |
445
|
|
|
function clean_input($str) { |
446
|
|
|
if (is_array($str)) { |
447
|
|
|
return array_map('clean_input', $str); |
448
|
|
|
} |
449
|
|
|
if (is_object($str)) { |
450
|
|
|
$obj = $str; |
451
|
|
|
foreach ($str as $var => $value) { |
452
|
|
|
$obj->$var = clean_input($value); |
453
|
|
|
} |
454
|
|
|
return $obj; |
455
|
|
|
} |
456
|
|
|
return htmlspecialchars(strip_tags($str), ENT_QUOTES, 'UTF-8'); |
457
|
|
|
} |
458
|
|
|
|
459
|
|
|
/** |
460
|
|
|
* This function is used to hidden some part of the given string. Helpful if you need hide some confidential |
461
|
|
|
* Information like credit card number, password, etc. |
462
|
|
|
* |
463
|
|
|
* @param string $str the string you want to hide some part |
464
|
|
|
* @param int $startCount the length of non hidden for the beginning char |
465
|
|
|
* @param int $endCount the length of non hidden for the ending char |
466
|
|
|
* @param string $hiddenChar the char used to hide the given string |
467
|
|
|
* @test |
468
|
|
|
* |
469
|
|
|
* @return string the string with the hidden part. |
470
|
|
|
*/ |
471
|
|
|
function string_hidden($str, $startCount = 0, $endCount = 0, $hiddenChar = '*') { |
472
|
|
|
//get the string length |
473
|
|
|
$len = strlen($str); |
474
|
|
|
//if str is empty |
475
|
|
|
if ($len <= 0) { |
476
|
|
|
return str_repeat($hiddenChar, 6); |
477
|
|
|
} |
478
|
|
|
//if the length is less than startCount and endCount |
479
|
|
|
//or the startCount and endCount length is 0 |
480
|
|
|
//or startCount is negative or endCount is negative |
481
|
|
|
//return the full string hidden |
482
|
|
|
|
483
|
|
|
if ((($startCount + $endCount) > $len) || ($startCount == 0 && $endCount == 0) || ($startCount < 0 || $endCount < 0)) { |
484
|
|
|
return str_repeat($hiddenChar, $len); |
485
|
|
|
} |
486
|
|
|
//the start non hidden string |
487
|
|
|
$startNonHiddenStr = substr($str, 0, $startCount); |
488
|
|
|
//the end non hidden string |
489
|
|
|
$endNonHiddenStr = null; |
490
|
|
|
if ($endCount > 0) { |
491
|
|
|
$endNonHiddenStr = substr($str, - $endCount); |
492
|
|
|
} |
493
|
|
|
//the hidden string |
494
|
|
|
$hiddenStr = str_repeat($hiddenChar, $len - ($startCount + $endCount)); |
495
|
|
|
|
496
|
|
|
return $startNonHiddenStr . $hiddenStr . $endNonHiddenStr; |
497
|
|
|
} |
498
|
|
|
|
499
|
|
|
/** |
500
|
|
|
* This function is very useful, it allows to use the shared instance of |
501
|
|
|
* the super controller in of all parts of your application. |
502
|
|
|
* |
503
|
|
|
* NOTE: this function always returns the reference of the super instance. |
504
|
|
|
* For example : |
505
|
|
|
* $obj = & get_instance(); |
506
|
|
|
* |
507
|
|
|
* @codeCoverageIgnore |
508
|
|
|
* |
509
|
|
|
* @return object the instance of the "Controller" class |
510
|
|
|
*/ |
511
|
|
|
function & get_instance(){ |
512
|
|
|
return Controller::getInstance(); |
513
|
|
|
} |
514
|
|
|
|