414 lines
9.8 KiB
PHP
414 lines
9.8 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Holds class PMA_Error_Handler
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*
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* @package PhpMyAdmin
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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/**
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*
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*/
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require_once './libraries/Error.class.php';
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/**
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* handling errors
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*
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* @package PhpMyAdmin
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*/
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class PMA_Error_Handler
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{
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/**
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* holds errors to be displayed or reported later ...
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*
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* @var array of PMA_Error
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*/
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protected $errors = array();
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/**
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* Constructor - set PHP error handler
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*
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*/
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public function __construct()
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{
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/**
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* Do not set ourselves as error handler in case of testsuite.
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*
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* This behavior is not tested there and breaks other tests as they
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* rely on PHPUnit doing it's own error handling which we break here.
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*/
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if (!defined('TESTSUITE')) {
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set_error_handler(array($this, 'handleError'));
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}
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}
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/**
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* Destructor
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*
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* stores errors in session
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*
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*/
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public function __destruct()
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{
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if (isset($_SESSION)) {
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if (! isset($_SESSION['errors'])) {
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$_SESSION['errors'] = array();
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}
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// remember only not displayed errors
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foreach ($this->errors as $key => $error) {
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/**
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* We don't want to store all errors here as it would
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* explode user session.
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*/
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if (count($_SESSION['errors']) >= 10) {
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$error = new PMA_Error(
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0,
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__('Too many error messages, some are not displayed.'),
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__FILE__,
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__LINE__
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);
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$_SESSION['errors'][$error->getHash()] = $error;
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break;
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} else if (($error instanceof PMA_Error)
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&& ! $error->isDisplayed()
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) {
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$_SESSION['errors'][$key] = $error;
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}
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}
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}
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}
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/**
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* returns array with all errors
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*
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* @return array PMA_Error_Handler::$_errors
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*/
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protected function getErrors()
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{
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$this->checkSavedErrors();
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return $this->errors;
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}
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/**
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* Error handler - called when errors are triggered/occurred
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*
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* This calls the addError() function, escaping the error string
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*
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* @param integer $errno error number
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* @param string $errstr error string
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* @param string $errfile error file
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* @param integer $errline error line
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*
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* @return void
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*/
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public function handleError($errno, $errstr, $errfile, $errline)
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{
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$this->addError($errstr, $errno, $errfile, $errline, true);
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}
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/**
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* Add an error; can also be called directly (with or without escaping)
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*
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* The following error types cannot be handled with a user defined function:
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* E_ERROR, E_PARSE, E_CORE_ERROR, E_CORE_WARNING, E_COMPILE_ERROR,
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* E_COMPILE_WARNING,
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* and most of E_STRICT raised in the file where set_error_handler() is called.
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*
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* Do not use the context parameter as we want to avoid storing the
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* complete $GLOBALS inside $_SESSION['errors']
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*
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* @param string $errstr error string
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* @param integer $errno error number
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* @param string $errfile error file
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* @param integer $errline error line
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* @param boolean $escape whether to escape the error string
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*
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* @return void
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*/
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public function addError($errstr, $errno, $errfile, $errline, $escape = true)
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{
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if ($escape) {
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$errstr = htmlspecialchars($errstr);
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}
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// create error object
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$error = new PMA_Error(
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$errno,
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$errstr,
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$errfile,
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$errline
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);
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// do not repeat errors
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$this->errors[$error->getHash()] = $error;
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switch ($error->getNumber()) {
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case E_USER_NOTICE:
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case E_USER_WARNING:
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case E_STRICT:
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case E_DEPRECATED:
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case E_NOTICE:
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case E_WARNING:
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case E_CORE_WARNING:
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case E_COMPILE_WARNING:
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case E_USER_ERROR:
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case E_RECOVERABLE_ERROR:
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// just collect the error
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// display is called from outside
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break;
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case E_ERROR:
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case E_PARSE:
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case E_CORE_ERROR:
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case E_COMPILE_ERROR:
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default:
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// FATAL error, dislay it and exit
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$this->dispFatalError($error);
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exit;
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break;
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}
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}
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/**
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* log error to configured log facility
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*
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* @param PMA_Error $error the error
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*
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* @return bool
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*
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* @todo finish!
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*/
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protected function logError($error)
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{
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return error_log($error->getMessage());
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}
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/**
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* trigger a custom error
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*
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* @param string $errorInfo error message
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* @param integer $errorNumber error number
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* @param string $file file name
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* @param integer $line line number
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*
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* @return void
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*/
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public function triggerError($errorInfo, $errorNumber = null,
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$file = null, $line = null
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) {
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// we could also extract file and line from backtrace
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// and call handleError() directly
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trigger_error($errorInfo, $errorNumber);
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}
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/**
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* display fatal error and exit
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*
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* @param PMA_Error $error the error
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*
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* @return void
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*/
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protected function dispFatalError($error)
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{
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if (! headers_sent()) {
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$this->dispPageStart($error);
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}
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$error->display();
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$this->dispPageEnd();
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exit;
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}
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/**
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* Displays user errors not displayed
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*
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* @return void
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*/
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public function dispUserErrors()
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{
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echo $this->getDispUserErrors();
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}
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/**
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* Renders user errors not displayed
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*
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* @return string
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*/
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public function getDispUserErrors()
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{
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$retval = '';
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foreach ($this->getErrors() as $error) {
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if ($error->isUserError() && ! $error->isDisplayed()) {
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$retval .= $error->getDisplay();
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}
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}
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return $retval;
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}
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/**
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* display HTML header
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*
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* @param PMA_error $error the error
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*
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* @return void
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*/
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protected function dispPageStart($error = null)
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{
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PMA_Response::getInstance()->disable();
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echo '<html><head><title>';
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if ($error) {
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echo $error->getTitle();
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} else {
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echo 'phpMyAdmin error reporting page';
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}
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echo '</title></head>';
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}
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/**
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* display HTML footer
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*
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* @return void
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*/
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protected function dispPageEnd()
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{
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echo '</body></html>';
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}
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/**
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* renders errors not displayed
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*
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* @return string
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*/
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public function getDispErrors()
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{
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$retval = '';
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if ($GLOBALS['cfg']['Error_Handler']['display']) {
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foreach ($this->getErrors() as $error) {
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if ($error instanceof PMA_Error) {
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if (! $error->isDisplayed()) {
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$retval .= $error->getDisplay();
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}
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} else {
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ob_start();
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var_dump($error);
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$retval .= ob_get_contents();
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ob_end_clean();
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}
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}
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} else {
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$retval .= $this->getDispUserErrors();
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}
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return $retval;
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}
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/**
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* displays errors not displayed
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*
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* @return void
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*/
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public function dispErrors()
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{
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echo $this->getDispErrors();
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}
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/**
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* look in session for saved errors
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*
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* @return void
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*/
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protected function checkSavedErrors()
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{
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if (isset($_SESSION['errors'])) {
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// restore saved errors
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foreach ($_SESSION['errors'] as $hash => $error) {
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if ($error instanceof PMA_Error && ! isset($this->errors[$hash])) {
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$this->errors[$hash] = $error;
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}
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}
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//$this->errors = array_merge($_SESSION['errors'], $this->errors);
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// delete stored errors
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$_SESSION['errors'] = array();
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unset($_SESSION['errors']);
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}
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}
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/**
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* return count of errors
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*
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* @return integer number of errors occoured
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*/
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public function countErrors()
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{
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return count($this->getErrors());
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}
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/**
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* return count of user errors
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*
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* @return integer number of user errors occoured
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*/
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public function countUserErrors()
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{
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$count = 0;
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if ($this->countErrors()) {
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foreach ($this->getErrors() as $error) {
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if ($error->isUserError()) {
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$count++;
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}
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}
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}
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return $count;
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}
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/**
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* whether use errors occurred or not
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*
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* @return boolean
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*/
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public function hasUserErrors()
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{
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return (bool) $this->countUserErrors();
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}
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/**
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* whether errors occurred or not
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*
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* @return boolean
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*/
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public function hasErrors()
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{
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return (bool) $this->countErrors();
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}
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/**
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* number of errors to be displayed
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*
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* @return integer number of errors to be displayed
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*/
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public function countDisplayErrors()
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{
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if ($GLOBALS['cfg']['Error_Handler']['display']) {
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return $this->countErrors();
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} else {
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return $this->countUserErrors();
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}
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}
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/**
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* whether there are errors to display or not
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*
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* @return boolean
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*/
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public function hasDisplayErrors()
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{
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return (bool) $this->countDisplayErrors();
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}
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}
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?>
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