/usr/share/php/Symfony/Component/Debug/ExceptionHandler.php is in php-symfony-debug 2.3.21+dfsg-4+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 | <?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Debug;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Debug\Exception\FlattenException;
if (!defined('ENT_SUBSTITUTE')) {
define('ENT_SUBSTITUTE', 8);
}
/**
* ExceptionHandler converts an exception to a Response object.
*
* It is mostly useful in debug mode to replace the default PHP/XDebug
* output with something prettier and more useful.
*
* As this class is mainly used during Kernel boot, where nothing is yet
* available, the Response content is always HTML.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ExceptionHandler
{
private $debug;
private $charset;
public function __construct($debug = true, $charset = 'UTF-8')
{
$this->debug = $debug;
$this->charset = $charset;
}
/**
* Registers the exception handler.
*
* @param bool $debug
*
* @return ExceptionHandler The registered exception handler
*/
public static function register($debug = true)
{
$handler = new static($debug);
set_exception_handler(array($handler, 'handle'));
return $handler;
}
/**
* Sends a response for the given Exception.
*
* If you have the Symfony HttpFoundation component installed,
* this method will use it to create and send the response. If not,
* it will fallback to plain PHP functions.
*
* @param \Exception $exception An \Exception instance
*
* @see sendPhpResponse
* @see createResponse
*/
public function handle(\Exception $exception)
{
if (class_exists('Symfony\Component\HttpFoundation\Response')) {
$this->createResponse($exception)->send();
} else {
$this->sendPhpResponse($exception);
}
}
/**
* Sends the error associated with the given Exception as a plain PHP response.
*
* This method uses plain PHP functions like header() and echo to output
* the response.
*
* @param \Exception|FlattenException $exception An \Exception instance
*/
public function sendPhpResponse($exception)
{
if (!$exception instanceof FlattenException) {
$exception = FlattenException::create($exception);
}
if (!headers_sent()) {
header(sprintf('HTTP/1.0 %s', $exception->getStatusCode()));
foreach ($exception->getHeaders() as $name => $value) {
header($name.': '.$value, false);
}
}
echo $this->decorate($this->getContent($exception), $this->getStylesheet($exception));
}
/**
* Creates the error Response associated with the given Exception.
*
* @param \Exception|FlattenException $exception An \Exception instance
*
* @return Response A Response instance
*/
public function createResponse($exception)
{
if (!$exception instanceof FlattenException) {
$exception = FlattenException::create($exception);
}
return new Response($this->decorate($this->getContent($exception), $this->getStylesheet($exception)), $exception->getStatusCode(), $exception->getHeaders());
}
/**
* Gets the HTML content associated with the given exception.
*
* @param FlattenException $exception A FlattenException instance
*
* @return string The content as a string
*/
public function getContent(FlattenException $exception)
{
switch ($exception->getStatusCode()) {
case 404:
$title = 'Sorry, the page you are looking for could not be found.';
break;
default:
$title = 'Whoops, looks like something went wrong.';
}
$content = '';
if ($this->debug) {
try {
$count = count($exception->getAllPrevious());
$total = $count + 1;
foreach ($exception->toArray() as $position => $e) {
$ind = $count - $position + 1;
$class = $this->abbrClass($e['class']);
$message = nl2br($e['message']);
$content .= sprintf(<<<EOF
<div class="block_exception clear_fix">
<h2><span>%d/%d</span> %s: %s</h2>
</div>
<div class="block">
<ol class="traces list_exception">
EOF
, $ind, $total, $class, $message);
foreach ($e['trace'] as $trace) {
$content .= ' <li>';
if ($trace['function']) {
$content .= sprintf('at %s%s%s(%s)', $this->abbrClass($trace['class']), $trace['type'], $trace['function'], $this->formatArgs($trace['args']));
}
if (isset($trace['file']) && isset($trace['line'])) {
if ($linkFormat = ini_get('xdebug.file_link_format')) {
$link = str_replace(array('%f', '%l'), array($trace['file'], $trace['line']), $linkFormat);
$content .= sprintf(' in <a href="%s" title="Go to source">%s line %s</a>', $link, $trace['file'], $trace['line']);
} else {
$content .= sprintf(' in %s line %s', $trace['file'], $trace['line']);
}
}
$content .= "</li>\n";
}
$content .= " </ol>\n</div>\n";
}
} catch (\Exception $e) {
// something nasty happened and we cannot throw an exception anymore
if ($this->debug) {
$title = sprintf('Exception thrown when handling an exception (%s: %s)', get_class($exception), $exception->getMessage());
} else {
$title = 'Whoops, looks like something went wrong.';
}
}
}
return <<<EOF
<div id="sf-resetcontent" class="sf-reset">
<h1>$title</h1>
$content
</div>
EOF;
}
/**
* Gets the stylesheet associated with the given exception.
*
* @param FlattenException $exception A FlattenException instance
*
* @return string The stylesheet as a string
*/
public function getStylesheet(FlattenException $exception)
{
return <<<EOF
.sf-reset { font: 11px Verdana, Arial, sans-serif; color: #333 }
.sf-reset .clear { clear:both; height:0; font-size:0; line-height:0; }
.sf-reset .clear_fix:after { display:block; height:0; clear:both; visibility:hidden; }
.sf-reset .clear_fix { display:inline-block; }
.sf-reset * html .clear_fix { height:1%; }
.sf-reset .clear_fix { display:block; }
.sf-reset, .sf-reset .block { margin: auto }
.sf-reset abbr { border-bottom: 1px dotted #000; cursor: help; }
.sf-reset p { font-size:14px; line-height:20px; color:#868686; padding-bottom:20px }
.sf-reset strong { font-weight:bold; }
.sf-reset a { color:#6c6159; }
.sf-reset a img { border:none; }
.sf-reset a:hover { text-decoration:underline; }
.sf-reset em { font-style:italic; }
.sf-reset h1, .sf-reset h2 { font: 20px Georgia, "Times New Roman", Times, serif }
.sf-reset h2 span { background-color: #fff; color: #333; padding: 6px; float: left; margin-right: 10px; }
.sf-reset .traces li { font-size:12px; padding: 2px 4px; list-style-type:decimal; margin-left:20px; }
.sf-reset .block { background-color:#FFFFFF; padding:10px 28px; margin-bottom:20px;
-webkit-border-bottom-right-radius: 16px;
-webkit-border-bottom-left-radius: 16px;
-moz-border-radius-bottomright: 16px;
-moz-border-radius-bottomleft: 16px;
border-bottom-right-radius: 16px;
border-bottom-left-radius: 16px;
border-bottom:1px solid #ccc;
border-right:1px solid #ccc;
border-left:1px solid #ccc;
}
.sf-reset .block_exception { background-color:#ddd; color: #333; padding:20px;
-webkit-border-top-left-radius: 16px;
-webkit-border-top-right-radius: 16px;
-moz-border-radius-topleft: 16px;
-moz-border-radius-topright: 16px;
border-top-left-radius: 16px;
border-top-right-radius: 16px;
border-top:1px solid #ccc;
border-right:1px solid #ccc;
border-left:1px solid #ccc;
overflow: hidden;
word-wrap: break-word;
}
.sf-reset li a { background:none; color:#868686; text-decoration:none; }
.sf-reset li a:hover { background:none; color:#313131; text-decoration:underline; }
.sf-reset ol { padding: 10px 0; }
.sf-reset h1 { background-color:#FFFFFF; padding: 15px 28px; margin-bottom: 20px;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
border: 1px solid #ccc;
}
EOF;
}
private function decorate($content, $css)
{
return <<<EOF
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<meta name="robots" content="noindex,nofollow" />
<style>
/* Copyright (c) 2010, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.com/yui/license.html */
html{color:#000;background:#FFF;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal;}li{list-style:none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}q:before,q:after{content:'';}abbr,acronym{border:0;font-variant:normal;}sup{vertical-align:text-top;}sub{vertical-align:text-bottom;}input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit;}input,textarea,select{*font-size:100%;}legend{color:#000;}
html { background: #eee; padding: 10px }
img { border: 0; }
#sf-resetcontent { width:970px; margin:0 auto; }
$css
</style>
</head>
<body>
$content
</body>
</html>
EOF;
}
private function abbrClass($class)
{
$parts = explode('\\', $class);
return sprintf("<abbr title=\"%s\">%s</abbr>", $class, array_pop($parts));
}
/**
* Formats an array as a string.
*
* @param array $args The argument array
*
* @return string
*/
private function formatArgs(array $args)
{
$result = array();
foreach ($args as $key => $item) {
if ('object' === $item[0]) {
$formattedValue = sprintf("<em>object</em>(%s)", $this->abbrClass($item[1]));
} elseif ('array' === $item[0]) {
$formattedValue = sprintf("<em>array</em>(%s)", is_array($item[1]) ? $this->formatArgs($item[1]) : $item[1]);
} elseif ('string' === $item[0]) {
$formattedValue = sprintf("'%s'", htmlspecialchars($item[1], ENT_QUOTES | ENT_SUBSTITUTE, $this->charset));
} elseif ('null' === $item[0]) {
$formattedValue = '<em>null</em>';
} elseif ('boolean' === $item[0]) {
$formattedValue = '<em>'.strtolower(var_export($item[1], true)).'</em>';
} elseif ('resource' === $item[0]) {
$formattedValue = '<em>resource</em>';
} else {
$formattedValue = str_replace("\n", '', var_export(htmlspecialchars((string) $item[1], ENT_QUOTES | ENT_SUBSTITUTE, $this->charset), true));
}
$result[] = is_int($key) ? $formattedValue : sprintf("'%s' => %s", $key, $formattedValue);
}
return implode(', ', $result);
}
}
|