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<?php
/**
* @package Joomla.Legacy
* @subpackage Error
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('JPATH_PLATFORM') or die;
/**
* Error Definition: Illegal Options
*
* @var integer
* @since 1.5
* @deprecated 4.0
*/
const JERROR_ILLEGAL_OPTIONS = 1;
/**
* Error Definition: Callback does not exist
*
* @var integer
* @since 1.5
* @deprecated 4.0
*/
const JERROR_CALLBACK_NOT_CALLABLE = 2;
/**
* Error Definition: Illegal Handler
*
* @var integer
* @since 1.5
* @deprecated 4.0
*/
const JERROR_ILLEGAL_MODE = 3;
/**
* Error Handling Class
*
* This class is inspired in design and concept by patErrorManager <http://www.php-tools.net>
*
* patErrorManager contributors include:
* - gERD Schaufelberger <gerd@php-tools.net>
* - Sebastian Mordziol <argh@php-tools.net>
* - Stephan Schmidt <scst@php-tools.net>
*
* @since 1.5
* @deprecated 4.0 Will be removed without replacement
*/
abstract class JError
{
/**
* Legacy error handling marker
*
* @var boolean True to enable legacy error handling using JError, false to use exception handling. This flag
* is present to allow an easy transition into exception handling for code written against the
* existing JError API in Joomla.
* @since 1.7
* @deprecated 4.0
*/
public static $legacy = false;
/**
* Array of message levels
*
* @var array
* @since 1.6
* @deprecated 4.0
*/
protected static $levels = array(E_NOTICE => 'Notice', E_WARNING => 'Warning', E_ERROR => 'Error');
/**
* Array of message handlers
*
* @var array
* @since 1.6
* @deprecated 4.0
*/
protected static $handlers = array(
E_NOTICE => array('mode' => 'ignore'),
E_WARNING => array('mode' => 'ignore'),
E_ERROR => array('mode' => 'ignore'),
);
/**
* Array containing the error stack
*
* @var JException[]
* @since 1.6
* @deprecated 4.0
*/
protected static $stack = array();
/**
* Method to determine if a value is an exception object.
*
* @param mixed $object Object to check.
*
* @return boolean True if argument is an exception, false otherwise.
*
* @since 1.5
* @deprecated 4.0
*/
public static function isError($object)
{
JLog::add('JError::isError() is deprecated.', JLog::WARNING, 'deprecated');
return $object instanceof Exception;
}
/**
* Method for retrieving the last exception object in the error stack
*
* @param boolean $unset True to remove the error from the stack.
*
* @return JException|boolean Last JException object in the error stack or boolean false if none exist
*
* @since 1.5
* @deprecated 4.0
*/
public static function getError($unset = false)
{
JLog::add('JError::getError() is deprecated.', JLog::WARNING, 'deprecated');
if (!isset(self::$stack[0]))
{
return false;
}
if ($unset)
{
$error = array_shift(self::$stack);
}
else
{
$error = &self::$stack[0];
}
return $error;
}
/**
* Method for retrieving the exception stack
*
* @return JException[] Chronological array of errors that have been stored during script execution
*
* @since 1.5
* @deprecated 4.0
*/
public static function getErrors()
{
JLog::add('JError::getErrors() is deprecated.', JLog::WARNING, 'deprecated');
return self::$stack;
}
/**
* Method to add non-JError thrown JExceptions to the JError stack for debugging purposes
*
* @param JException $e Add an exception to the stack.
*
* @return void
*
* @since 1.6
* @deprecated 4.0
*/
public static function addToStack(JException $e)
{
JLog::add('JError::addToStack() is deprecated.', JLog::WARNING, 'deprecated');
self::$stack[] = &$e;
}
/**
* Create a new JException object given the passed arguments
*
* @param integer $level The error level - use any of PHP's own error levels for
* this: E_ERROR, E_WARNING, E_NOTICE, E_USER_ERROR,
* E_USER_WARNING, E_USER_NOTICE.
* @param string $code The application-internal error code for this error
* @param string $msg The error message, which may also be shown the user if need be.
* @param mixed $info Optional: Additional error information (usually only
* developer-relevant information that the user should never see,
* like a database DSN).
* @param boolean $backtrace Add a stack backtrace to the exception.
*
* @return JException
*
* @since 1.5
* @deprecated 4.0
* @see JException
*/
public static function raise($level, $code, $msg, $info = null, $backtrace = false)
{
JLog::add('JError::raise() is deprecated.', JLog::WARNING, 'deprecated');
// Build error object
$exception = new JException($msg, $code, $level, $info, $backtrace);
return self::throwError($exception);
}
/**
* Throw an error
*
* @param JException &$exception An exception to throw.
*
* @return JException A reference to the handled JException object
*
* @since 1.6
* @deprecated 4.0 Just throw an Exception
* @see JException
*/
public static function throwError(&$exception)
{
JLog::add('JError::throwError() is deprecated.', JLog::WARNING, 'deprecated');
static $thrown = false;
// If thrown is hit again, we've come back to JError in the middle of throwing another JError, so die!
if ($thrown)
{
self::handleEcho($exception, array());
// Inifite loop.
jexit();
}
$thrown = true;
$level = $exception->get('level');
// See what to do with this kind of error
$handler = self::getErrorHandling($level);
$function = 'handle' . ucfirst($handler['mode']);
if (is_callable(array('JError', $function)))
{
$reference = call_user_func_array(array('JError', $function), array(&$exception, isset($handler['options']) ? $handler['options'] : array()));
}
else
{
// This is required to prevent a very unhelpful white-screen-of-death
jexit(
'JError::raise -> Static method JError::' . $function . ' does not exist. Contact a developer to debug' .
'<br /><strong>Error was</strong> <br />' . $exception->getMessage()
);
}
// We don't need to store the error, since JException already does that for us!
// Remove loop check
$thrown = false;
return $reference;
}
/**
* Wrapper method for the raise() method with predefined error level of E_ERROR and backtrace set to true.
*
* @param string $code The application-internal error code for this error
* @param string $msg The error message, which may also be shown the user if need be.
* @param mixed $info Optional: Additional error information (usually only
* developer-relevant information that the user should
* never see, like a database DSN).
*
* @return JException $error The thrown JException object
*
* @since 1.5
* @deprecated 4.0 Just throw an Exception
* @see JError::raise()
*/
public static function raiseError($code, $msg, $info = null)
{
JLog::add('JError::raiseError() is deprecated.', JLog::WARNING, 'deprecated');
return self::raise(E_ERROR, $code, $msg, $info, true);
}
/**
* Wrapper method for the {@link raise()} method with predefined error level of E_WARNING and backtrace set to false.
*
* @param string $code The application-internal error code for this error
* @param string $msg The error message, which may also be shown the user if need be.
* @param mixed $info Optional: Additional error information (usually only
* developer-relevant information that
* the user should never see, like a database DSN).
*
* @return JException $error The thrown JException object
*
* @since 1.5
* @deprecated 4.0 Use \Joomla\CMS\Factory::getApplication()->enqueueMessage($msg, 'warning') when wou want to notify the UI
* @see JError::raise()
*/
public static function raiseWarning($code, $msg, $info = null)
{
JLog::add('JError::raiseWarning() is deprecated.', JLog::WARNING, 'deprecated');
return self::raise(E_WARNING, $code, $msg, $info);
}
/**
* Wrapper method for the {@link raise()} method with predefined error level of E_NOTICE and backtrace set to false.
*
* @param string $code The application-internal error code for this error
* @param string $msg The error message, which may also be shown the user if need be.
* @param mixed $info Optional: Additional error information (usually only
* developer-relevant information that the user
* should never see, like a database DSN).
*
* @return JException $error The thrown JException object
*
* @since 1.5
* @deprecated 4.0 Use \Joomla\CMS\Factory::getApplication()->enqueueMessage($msg, 'notice') when wou want to notify the UI
* @see JError::raise()
*/
public static function raiseNotice($code, $msg, $info = null)
{
JLog::add('JError::raiseNotice() is deprecated.', JLog::WARNING, 'deprecated');
return self::raise(E_NOTICE, $code, $msg, $info);
}
/**
* Method to get the current error handler settings for a specified error level.
*
* @param integer $level The error level to retrieve. This can be any of PHP's
* own error levels, e.g. E_ALL, E_NOTICE...
*
* @return array All error handling details
*
* @since 1.5
* @deprecated 4.0
*/
public static function getErrorHandling($level)
{
JLog::add('JError::getErrorHandling() is deprecated.', JLog::WARNING, 'deprecated');
return self::$handlers[$level];
}
/**
* Method to set the way the JError will handle different error levels. Use this if you want to override the default settings.
*
* Error handling modes:
* - ignore
* - echo
* - verbose
* - die
* - message
* - log
* - callback
*
* You may also set the error handling for several modes at once using PHP's bit operations.
* Examples:
* - E_ALL = Set the handling for all levels
* - E_ERROR | E_WARNING = Set the handling for errors and warnings
* - E_ALL ^ E_ERROR = Set the handling for all levels except errors
*
* @param integer $level The error level for which to set the error handling
* @param string $mode The mode to use for the error handling.
* @param mixed $options Optional: Any options needed for the given mode.
*
* @return boolean|JException True on success or a JException object if failed.
*
* @since 1.5
* @deprecated 4.0
*/
public static function setErrorHandling($level, $mode, $options = null)
{
JLog::add('JError::setErrorHandling() is deprecated.', JLog::WARNING, 'deprecated');
$levels = self::$levels;
$function = 'handle' . ucfirst($mode);
if (!is_callable(array('JError', $function)))
{
return self::raiseError(E_ERROR, 'JError:' . JERROR_ILLEGAL_MODE, 'Error Handling mode is not known', 'Mode: ' . $mode . ' is not implemented.');
}
foreach ($levels as $eLevel => $eTitle)
{
if (($level & $eLevel) !== $eLevel)
{
continue;
}
// Set callback options
if ($mode === 'callback')
{
if (!is_array($options))
{
return self::raiseError(E_ERROR, 'JError:' . JERROR_ILLEGAL_OPTIONS, 'Options for callback not valid');
}
if (!is_callable($options))
{
$tmp = array('GLOBAL');
if (is_array($options))
{
$tmp[0] = $options[0];
$tmp[1] = $options[1];
}
else
{
$tmp[1] = $options;
}
return self::raiseError(
E_ERROR,
'JError:' . JERROR_CALLBACK_NOT_CALLABLE,
'Function is not callable',
'Function:' . $tmp[1] . ' scope ' . $tmp[0] . '.'
);
}
}
// Save settings
self::$handlers[$eLevel] = array('mode' => $mode);
if ($options != null)
{
self::$handlers[$eLevel]['options'] = $options;
}
}
return true;
}
/**
* Method that attaches the error handler to JError
*
* @return void
*
* @since 1.5
* @deprecated 4.0
* @see set_error_handler
*/
public static function attachHandler()
{
JLog::add('JError::getErrorHandling() is deprecated.', JLog::WARNING, 'deprecated');
set_error_handler(array('JError', 'customErrorHandler'));
}
/**
* Method that detaches the error handler from JError
*
* @return void
*
* @since 1.5
* @deprecated 4.0
* @see restore_error_handler
*/
public static function detachHandler()
{
JLog::add('JError::detachHandler() is deprecated.', JLog::WARNING, 'deprecated');
restore_error_handler();
}
/**
* Method to register a new error level for handling errors
*
* This allows you to add custom error levels to the built-in
* - E_NOTICE
* - E_WARNING
* - E_NOTICE
*
* @param integer $level Error level to register
* @param string $name Human readable name for the error level
* @param string $handler Error handler to set for the new error level [optional]
*
* @return boolean True on success; false if the level already has been registered
*
* @since 1.5
* @deprecated 4.0
*/
public static function registerErrorLevel($level, $name, $handler = 'ignore')
{
JLog::add('JError::registerErrorLevel() is deprecated.', JLog::WARNING, 'deprecated');
if (isset(self::$levels[$level]))
{
return false;
}
self::$levels[$level] = $name;
self::setErrorHandling($level, $handler);
return true;
}
/**
* Translate an error level integer to a human readable string
* e.g. E_ERROR will be translated to 'Error'
*
* @param integer $level Error level to translate
*
* @return string|boolean Human readable error level name or boolean false if it doesn't exist
*
* @since 1.5
* @deprecated 4.0
*/
public static function translateErrorLevel($level)
{
JLog::add('JError::translateErrorLevel() is deprecated.', JLog::WARNING, 'deprecated');
if (isset(self::$levels[$level]))
{
return self::$levels[$level];
}
return false;
}
/**
* Ignore error handler
* - Ignores the error
*
* @param JException &$error Exception object to handle
* @param array $options Handler options
*
* @return JException The exception object
*
* @since 1.5
* @deprecated 4.0
* @see JError::raise()
*/
public static function handleIgnore(&$error, $options)
{
JLog::add('JError::handleIgnore() is deprecated.', JLog::WARNING, 'deprecated');
return $error;
}
/**
* Echo error handler
* - Echos the error message to output
*
* @param JException &$error Exception object to handle
* @param array $options Handler options
*
* @return JException The exception object
*
* @since 1.5
* @deprecated 4.0
* @see JError::raise()
*/
public static function handleEcho(&$error, $options)
{
JLog::add('JError::handleEcho() is deprecated.', JLog::WARNING, 'deprecated');
$level_human = self::translateErrorLevel($error->get('level'));
// If system debug is set, then output some more information.
if (JDEBUG)
{
$backtrace = $error->getTrace();
$trace = '';
for ($i = count($backtrace) - 1; $i >= 0; $i--)
{
if (isset($backtrace[$i]['class']))
{
$trace .= sprintf("\n%s %s %s()", $backtrace[$i]['class'], $backtrace[$i]['type'], $backtrace[$i]['function']);
}
else
{
$trace .= sprintf("\n%s()", $backtrace[$i]['function']);
}
if (isset($backtrace[$i]['file']))
{
$trace .= sprintf(' @ %s:%d', $backtrace[$i]['file'], $backtrace[$i]['line']);
}
}
}
if (isset($_SERVER['HTTP_HOST']))
{
// Output as html
echo "<br /><b>jos-$level_human</b>: "
. $error->get('message') . "<br />\n"
. (JDEBUG ? nl2br($trace) : '');
}
else
{
// Output as simple text
if (defined('STDERR'))
{
fwrite(STDERR, "J$level_human: " . $error->get('message') . "\n");
if (JDEBUG)
{
fwrite(STDERR, $trace);
}
}
else
{
echo "J$level_human: " . $error->get('message') . "\n";
if (JDEBUG)
{
echo $trace;
}
}
}
return $error;
}
/**
* Verbose error handler
* - Echos the error message to output as well as related info
*
* @param JException &$error Exception object to handle
* @param array $options Handler options
*
* @return JException The exception object
*
* @since 1.5
* @deprecated 4.0
* @see JError::raise()
*/
public static function handleVerbose(&$error, $options)
{
JLog::add('JError::handleVerbose() is deprecated.', JLog::WARNING, 'deprecated');
$level_human = self::translateErrorLevel($error->get('level'));
$info = $error->get('info');
if (isset($_SERVER['HTTP_HOST']))
{
// Output as html
echo "<br /><b>J$level_human</b>: " . $error->get('message') . "<br />\n";
if ($info != null)
{
echo '   ' . $info . "<br />\n";
}
echo $error->getBacktrace(true);
}
else
{
// Output as simple text
echo "J$level_human: " . $error->get('message') . "\n";
if ($info != null)
{
echo "\t" . $info . "\n";
}
}
return $error;
}
/**
* Die error handler
* - Echos the error message to output and then dies
*
* @param JException &$error Exception object to handle
* @param array $options Handler options
*
* @return void Calls die()
*
* @since 1.5
* @deprecated 4.0
* @see JError::raise()
*/
public static function handleDie(&$error, $options)
{
JLog::add('JError::handleDie() is deprecated.', JLog::WARNING, 'deprecated');
$level_human = self::translateErrorLevel($error->get('level'));
if (isset($_SERVER['HTTP_HOST']))
{
// Output as html
jexit("<br /><b>J$level_human</b>: " . $error->get('message') . "<br />\n");
}
else
{
// Output as simple text
if (defined('STDERR'))
{
fwrite(STDERR, "J$level_human: " . $error->get('message') . "\n");
jexit();
}
else
{
jexit("J$level_human: " . $error->get('message') . "\n");
}
}
return $error;
}
/**
* Message error handler
* Enqueues the error message into the system queue
*
* @param JException &$error Exception object to handle
* @param array $options Handler options
*
* @return JException The exception object
*
* @since 1.5
* @deprecated 4.0
* @see JError::raise()
*/
public static function handleMessage(&$error, $options)
{
JLog::add('JError::hanleMessage() is deprecated.', JLog::WARNING, 'deprecated');
$appl = JFactory::getApplication();
$type = ($error->get('level') == E_NOTICE) ? 'notice' : 'error';
$appl->enqueueMessage($error->get('message'), $type);
return $error;
}
/**
* Log error handler
* Logs the error message to a system log file
*
* @param JException &$error Exception object to handle
* @param array $options Handler options
*
* @return JException The exception object
*
* @since 1.5
* @deprecated 4.0
* @see JError::raise()
*/
public static function handleLog(&$error, $options)
{
JLog::add('JError::handleLog() is deprecated.', JLog::WARNING, 'deprecated');
static $log;
if ($log == null)
{
$options['text_file'] = date('Y-m-d') . '.error.log';
$options['format'] = "{DATE}\t{TIME}\t{LEVEL}\t{CODE}\t{MESSAGE}";
JLog::addLogger($options, JLog::ALL, array('error'));
}
$entry = new JLogEntry(
str_replace(array("\r", "\n"), array('', '\\n'), $error->get('message')),
$error->get('level'),
'error'
);
$entry->code = $error->get('code');
JLog::add($entry);
return $error;
}
/**
* Callback error handler
* - Send the error object to a callback method for error handling
*
* @param JException &$error Exception object to handle
* @param array $options Handler options
*
* @return JException The exception object
*
* @since 1.5
* @deprecated 4.0
* @see JError::raise()
*/
public static function handleCallback(&$error, $options)
{
JLog::add('JError::handleCallback() is deprecated.', JLog::WARNING, 'deprecated');
return call_user_func_array($options, array(&$error));
}
/**
* Display a custom error page and exit gracefully
*
* @param JException $error Exception object
*
* @return void
*
* @since 1.5
* @deprecated 4.0 Use \Joomla\CMS\Exception\ExceptionHandler::render() instead
*/
public static function customErrorPage($error)
{
JLog::add('JError::customErrorPage() is deprecated, use JErrorPage::render() instead.', JLog::WARNING, 'deprecated');
\Joomla\CMS\Exception\ExceptionHandler::render($error);
}
/**
* Display a message to the user
*
* @param integer $level The error level - use any of PHP's own error levels
* for this: E_ERROR, E_WARNING, E_NOTICE, E_USER_ERROR,
* E_USER_WARNING, E_USER_NOTICE.
* @param string $msg Error message, shown to user if need be.
*
* @return void
*
* @since 1.5
* @deprecated 4.0 Throw an Exception or enqueue the message to the application, eg. \Joomla\CMS\Factory::getApplication()->enqueueMessage($msg)
*/
public static function customErrorHandler($level, $msg)
{
JLog::add('JError::customErrorHandler() is deprecated.', JLog::WARNING, 'deprecated');
self::raise($level, '', $msg);
}
/**
* Render the backtrace
*
* @param Exception $error The error
*
* @return string Contents of the backtrace
*
* @since 1.6
* @deprecated 4.0 Use JLayoutHelper::render('joomla.error.backtrace', array('backtrace' => $error->getTrace())) instead
*/
public static function renderBacktrace($error)
{
JLog::add('JError::renderBacktrace() is deprecated.', JLog::WARNING, 'deprecated');
return \Joomla\CMS\Layout\LayoutHelper::render('joomla.error.backtrace', array('backtrace' => $error->getTrace()));
}
}
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