mirror of
https://github.com/codeigniter4/CodeIgniter4.git
synced 2025-02-20 11:44:28 +08:00
458 lines
12 KiB
PHP
458 lines
12 KiB
PHP
<?php namespace CodeIgniter\Debug;
|
|
|
|
/**
|
|
* CodeIgniter
|
|
*
|
|
* An open source application development framework for PHP
|
|
*
|
|
* This content is released under the MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2014-2018 British Columbia Institute of Technology
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* @package CodeIgniter
|
|
* @author CodeIgniter Dev Team
|
|
* @copyright 2014-2018 British Columbia Institute of Technology (https://bcit.ca/)
|
|
* @license https://opensource.org/licenses/MIT MIT License
|
|
* @link https://codeigniter.com
|
|
* @since Version 3.0.0
|
|
* @filesource
|
|
*/
|
|
use Config\Services;
|
|
|
|
require __DIR__.'/CustomExceptions.php';
|
|
|
|
/**
|
|
* Exceptions manager
|
|
*/
|
|
class Exceptions
|
|
{
|
|
/**
|
|
* Nesting level of the output buffering mechanism
|
|
*
|
|
* @var int
|
|
*/
|
|
public $ob_level;
|
|
|
|
/**
|
|
* The path to the directory containing the
|
|
* cli and html error view directories.
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $viewPath;
|
|
|
|
/**
|
|
* @var \Config\Exceptions
|
|
*/
|
|
protected $config;
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* @param \Config\Exceptions $config
|
|
*/
|
|
public function __construct(\Config\Exceptions $config)
|
|
{
|
|
$this->ob_level = ob_get_level();
|
|
|
|
$this->viewPath = rtrim($config->errorViewPath, '/ ') . '/';
|
|
|
|
$this->config = $config;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Responsible for registering the error, exception and shutdown
|
|
* handling of our application.
|
|
*/
|
|
public function initialize()
|
|
{
|
|
//Set the Exception Handler
|
|
set_exception_handler([$this, 'exceptionHandler']);
|
|
|
|
// Set the Error Handler
|
|
set_error_handler([$this, 'errorHandler']);
|
|
|
|
// Set the handler for shutdown to catch Parse errors
|
|
// Do we need this in PHP7?
|
|
register_shutdown_function([$this, 'shutdownHandler']);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Catches any uncaught errors and exceptions, including most Fatal errors
|
|
* (Yay PHP7!). Will log the error, display it if display_errors is on,
|
|
* and fire an event that allows custom actions to be taken at this point.
|
|
*
|
|
* @param \Throwable $exception
|
|
*/
|
|
public function exceptionHandler(\Throwable $exception)
|
|
{
|
|
$codes = $this->determineCodes($exception);
|
|
$statusCode = $codes[0];
|
|
$exitCode = $codes[1];
|
|
|
|
// Log it
|
|
if ($this->config->log === true && ! in_array($statusCode, $this->config->ignoreCodes))
|
|
{
|
|
log_message('critical', $exception->getMessage()."\n{trace}", [
|
|
'trace' => $exception->getTraceAsString()
|
|
]);
|
|
}
|
|
|
|
if (! is_cli())
|
|
{
|
|
$response = Services::response()->setStatusCode($statusCode);
|
|
$header = "HTTP/1.1 {$response->getStatusCode()} {$response->getReason()}";
|
|
header($header, true, $statusCode);
|
|
}
|
|
|
|
$this->render($exception, $statusCode);
|
|
|
|
exit($exitCode);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Even in PHP7, some errors make it through to the errorHandler, so
|
|
* convert these to Exceptions and let the exception handler log it and
|
|
* display it.
|
|
*
|
|
* This seems to be primarily when a user triggers it with trigger_error().
|
|
*
|
|
* @param int $severity
|
|
* @param string $message
|
|
* @param string|null $file
|
|
* @param int|null $line
|
|
* @param null $context
|
|
*
|
|
* @throws \ErrorException
|
|
*/
|
|
public function errorHandler(int $severity, string $message, string $file = null, int $line = null, $context = null)
|
|
{
|
|
// Convert it to an exception and pass it along.
|
|
throw new \ErrorException($message, 0, $severity, $file, $line);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Checks to see if any errors have happened during shutdown that
|
|
* need to be caught and handle them.
|
|
*/
|
|
public function shutdownHandler()
|
|
{
|
|
$error = error_get_last();
|
|
|
|
// If we've got an error that hasn't been displayed, then convert
|
|
// it to an Exception and use the Exception handler to display it
|
|
// to the user.
|
|
if ( ! is_null($error))
|
|
{
|
|
// Fatal Error?
|
|
if (in_array($error['type'], [E_ERROR, E_CORE_ERROR, E_COMPILE_ERROR, E_PARSE]))
|
|
{
|
|
$this->exceptionHandler(new \ErrorException($error['message'], $error['type'], 0, $error['file'], $error['line']));
|
|
}
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Determines the view to display based on the exception thrown,
|
|
* whether an HTTP or CLI request, etc.
|
|
*
|
|
* @param \Throwable $exception
|
|
* @param string $template_path
|
|
*
|
|
* @return string The path and filename of the view file to use
|
|
*/
|
|
protected function determineView(\Throwable $exception, string $template_path): string
|
|
{
|
|
// Production environments should have a custom exception file.
|
|
$view = 'production.php';
|
|
$template_path = rtrim($template_path, '/ ') . '/';
|
|
|
|
if (str_ireplace(['off', 'none', 'no', 'false', 'null'], '', ini_get('display_errors')))
|
|
{
|
|
$view = 'error_exception.php';
|
|
}
|
|
|
|
// 404 Errors
|
|
if ($exception instanceof \CodeIgniter\PageNotFoundException)
|
|
{
|
|
return 'error_404.php';
|
|
}
|
|
|
|
// Allow for custom views based upon the status code
|
|
else if (is_file($template_path . 'error_' . $exception->getCode() . '.php'))
|
|
{
|
|
return 'error_' . $exception->getCode() . '.php';
|
|
}
|
|
|
|
return $view;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Given an exception and status code will display the error to the client.
|
|
*
|
|
* @param \Throwable $exception
|
|
* @param int $statusCode
|
|
*/
|
|
protected function render(\Throwable $exception, int $statusCode)
|
|
{
|
|
// Determine directory with views
|
|
$path = $this->viewPath;
|
|
if (empty($path))
|
|
{
|
|
$path = APPPATH . 'Views/errors/';
|
|
}
|
|
|
|
$path = is_cli()
|
|
? $path.'cli/'
|
|
: $path.'html/';
|
|
|
|
// Determine the vew
|
|
$view = $this->determineView($exception, $path);
|
|
|
|
// Prepare the vars
|
|
$vars = $this->collectVars($exception, $statusCode);
|
|
extract($vars);
|
|
|
|
// Render it
|
|
if (ob_get_level() > $this->ob_level + 1)
|
|
{
|
|
ob_end_clean();
|
|
}
|
|
|
|
ob_start();
|
|
include($path . $view);
|
|
$buffer = ob_get_contents();
|
|
ob_end_clean();
|
|
echo $buffer;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Gathers the variables that will be made available to the view.
|
|
*
|
|
* @param \Throwable $exception
|
|
* @param int $statusCode
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function collectVars(\Throwable $exception, int $statusCode)
|
|
{
|
|
return [
|
|
'type' => get_class($exception),
|
|
'code' => $statusCode,
|
|
'message' => $exception->getMessage() ?? '(null)',
|
|
'file' => $exception->getFile(),
|
|
'line' => $exception->getLine(),
|
|
'trace' => $exception->getTrace(),
|
|
'title' => get_class($exception)
|
|
];
|
|
}
|
|
|
|
|
|
/**
|
|
* Determines the HTTP status code and the exit status code for this request.
|
|
*
|
|
* @param \Throwable $exception
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function determineCodes(\Throwable $exception): array
|
|
{
|
|
$statusCode = abs($exception->getCode());
|
|
|
|
if ($statusCode < 100 || $statusCode > 599)
|
|
{
|
|
$exitStatus = $statusCode + EXIT__AUTO_MIN; // 9 is EXIT__AUTO_MIN
|
|
if ($exitStatus > EXIT__AUTO_MAX) // 125 is EXIT__AUTO_MAX
|
|
{
|
|
$exitStatus = EXIT_ERROR; // EXIT_ERROR
|
|
}
|
|
$statusCode = 500;
|
|
}
|
|
else
|
|
{
|
|
$exitStatus = 1; // EXIT_ERROR
|
|
}
|
|
|
|
return [
|
|
$statusCode ?? 500,
|
|
$exitStatus
|
|
];
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
//--------------------------------------------------------------------
|
|
// Display Methods
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Clean Path
|
|
*
|
|
* This makes nicer looking paths for the error output.
|
|
*
|
|
* @param string $file
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function cleanPath($file)
|
|
{
|
|
if (strpos($file, APPPATH) === 0)
|
|
{
|
|
$file = 'APPPATH/' . substr($file, strlen(APPPATH));
|
|
}
|
|
elseif (strpos($file, BASEPATH) === 0)
|
|
{
|
|
$file = 'BASEPATH/' . substr($file, strlen(BASEPATH));
|
|
}
|
|
elseif (strpos($file, FCPATH) === 0)
|
|
{
|
|
$file = 'FCPATH/' . substr($file, strlen(FCPATH));
|
|
}
|
|
|
|
return $file;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Describes memory usage in real-world units. Intended for use
|
|
* with memory_get_usage, etc.
|
|
*
|
|
* @param $bytes
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function describeMemory(int $bytes): string
|
|
{
|
|
if ($bytes < 1024)
|
|
{
|
|
return $bytes . 'B';
|
|
}
|
|
else if ($bytes < 1048576)
|
|
{
|
|
return round($bytes / 1024, 2) . 'KB';
|
|
}
|
|
|
|
return round($bytes / 1048576, 2) . 'MB';
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
|
|
/**
|
|
* Creates a syntax-highlighted version of a PHP file.
|
|
*
|
|
* @param $file
|
|
* @param $lineNumber
|
|
* @param int $lines
|
|
*
|
|
* @return bool|string
|
|
*/
|
|
public static function highlightFile($file, $lineNumber, $lines = 15)
|
|
{
|
|
if (empty($file) || ! is_readable($file))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Set our highlight colors:
|
|
if (function_exists('ini_set'))
|
|
{
|
|
ini_set('highlight.comment', '#767a7e; font-style: italic');
|
|
ini_set('highlight.default', '#c7c7c7');
|
|
ini_set('highlight.html', '#06B');
|
|
ini_set('highlight.keyword', '#f1ce61;');
|
|
ini_set('highlight.string', '#869d6a');
|
|
}
|
|
|
|
try
|
|
{
|
|
$source = file_get_contents($file);
|
|
} catch (\Throwable $e)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
$source = str_replace(["\r\n", "\r"], "\n", $source);
|
|
$source = explode("\n", highlight_string($source, true));
|
|
$source = str_replace('<br />', "\n", $source[1]);
|
|
|
|
$source = explode("\n", str_replace("\r\n", "\n", $source));
|
|
|
|
// Get just the part to show
|
|
$start = $lineNumber - (int) round($lines / 2);
|
|
$start = $start < 0 ? 0 : $start;
|
|
|
|
// Get just the lines we need to display, while keeping line numbers...
|
|
$source = array_splice($source, $start, $lines, true);
|
|
|
|
// Used to format the line number in the source
|
|
$format = '% ' . strlen($start + $lines) . 'd';
|
|
|
|
$out = '';
|
|
// Because the highlighting may have an uneven number
|
|
// of open and close span tags on one line, we need
|
|
// to ensure we can close them all to get the lines
|
|
// showing correctly.
|
|
$spans = 1;
|
|
|
|
foreach ($source as $n => $row)
|
|
{
|
|
$spans += substr_count($row, '<span') - substr_count($row, '</span');
|
|
$row = str_replace(["\r", "\n"], ['', ''], $row);
|
|
|
|
if (($n + $start + 1) == $lineNumber)
|
|
{
|
|
preg_match_all('#<[^>]+>#', $row, $tags);
|
|
$out .= sprintf("<span class='line highlight'><span class='number'>{$format}</span> %s\n</span>%s", $n + $start + 1, strip_tags($row), implode('', $tags[0])
|
|
);
|
|
}
|
|
else
|
|
{
|
|
$out .= sprintf('<span class="line"><span class="number">' . $format . '</span> %s', $n + $start + 1, $row) . "\n";
|
|
}
|
|
}
|
|
|
|
if ($spans > 0)
|
|
{
|
|
$out .= str_repeat('</span>', $spans);
|
|
}
|
|
|
|
return '<pre><code>' . $out . '</code></pre>';
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
}
|