--- /dev/null
+<?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;
+use Symfony\Component\Debug\Exception\OutOfMemoryException;
+
+/**
+ * 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>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ExceptionHandler
+{
+ private $debug;
+ private $charset;
+ private $handler;
+ private $caughtBuffer;
+ private $caughtLength;
+ private $fileLinkFormat;
+
+ public function __construct($debug = true, $charset = null, $fileLinkFormat = null)
+ {
+ if (false !== strpos($charset, '%')) {
+ @trigger_error('Providing $fileLinkFormat as second argument to '.__METHOD__.' is deprecated since version 2.8 and will be unsupported in 3.0. Please provide it as third argument, after $charset.', E_USER_DEPRECATED);
+
+ // Swap $charset and $fileLinkFormat for BC reasons
+ $pivot = $fileLinkFormat;
+ $fileLinkFormat = $charset;
+ $charset = $pivot;
+ }
+ $this->debug = $debug;
+ $this->charset = $charset ?: ini_get('default_charset') ?: 'UTF-8';
+ $this->fileLinkFormat = $fileLinkFormat ?: ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format');
+ }
+
+ /**
+ * Registers the exception handler.
+ *
+ * @param bool $debug Enable/disable debug mode, where the stack trace is displayed
+ * @param string|null $charset The charset used by exception messages
+ * @param string|null $fileLinkFormat The IDE link template
+ *
+ * @return static
+ */
+ public static function register($debug = true, $charset = null, $fileLinkFormat = null)
+ {
+ $handler = new static($debug, $charset, $fileLinkFormat);
+
+ $prev = set_exception_handler(array($handler, 'handle'));
+ if (is_array($prev) && $prev[0] instanceof ErrorHandler) {
+ restore_exception_handler();
+ $prev[0]->setExceptionHandler(array($handler, 'handle'));
+ }
+
+ return $handler;
+ }
+
+ /**
+ * Sets a user exception handler.
+ *
+ * @param callable $handler An handler that will be called on Exception
+ *
+ * @return callable|null The previous exception handler if any
+ */
+ public function setHandler($handler)
+ {
+ if (null !== $handler && !is_callable($handler)) {
+ throw new \LogicException('The exception handler must be a valid PHP callable.');
+ }
+ $old = $this->handler;
+ $this->handler = $handler;
+
+ return $old;
+ }
+
+ /**
+ * Sets the format for links to source files.
+ *
+ * @param string $format The format for links to source files
+ *
+ * @return string The previous file link format
+ */
+ public function setFileLinkFormat($format)
+ {
+ $old = $this->fileLinkFormat;
+ $this->fileLinkFormat = $format;
+
+ return $old;
+ }
+
+ /**
+ * Sends a response for the given Exception.
+ *
+ * To be as fail-safe as possible, the exception is first handled
+ * by our simple exception handler, then by the user exception handler.
+ * The latter takes precedence and any output from the former is cancelled,
+ * if and only if nothing bad happens in this handling path.
+ */
+ public function handle(\Exception $exception)
+ {
+ if (null === $this->handler || $exception instanceof OutOfMemoryException) {
+ $this->failSafeHandle($exception);
+
+ return;
+ }
+
+ $caughtLength = $this->caughtLength = 0;
+
+ ob_start(array($this, 'catchOutput'));
+ $this->failSafeHandle($exception);
+ while (null === $this->caughtBuffer && ob_end_flush()) {
+ // Empty loop, everything is in the condition
+ }
+ if (isset($this->caughtBuffer[0])) {
+ ob_start(array($this, 'cleanOutput'));
+ echo $this->caughtBuffer;
+ $caughtLength = ob_get_length();
+ }
+ $this->caughtBuffer = null;
+
+ try {
+ call_user_func($this->handler, $exception);
+ $this->caughtLength = $caughtLength;
+ } catch (\Exception $e) {
+ if (!$caughtLength) {
+ // All handlers failed. Let PHP handle that now.
+ throw $exception;
+ }
+ }
+ }
+
+ /**
+ * 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
+ */
+ private function failSafeHandle(\Exception $exception)
+ {
+ if (class_exists('Symfony\Component\HttpFoundation\Response', false)
+ && __CLASS__ !== get_class($this)
+ && ($reflector = new \ReflectionMethod($this, 'createResponse'))
+ && __CLASS__ !== $reflector->class
+ ) {
+ $response = $this->createResponse($exception);
+ $response->sendHeaders();
+ $response->sendContent();
+ @trigger_error(sprintf("The %s::createResponse method is deprecated since 2.8 and won't be called anymore when handling an exception in 3.0.", $reflector->class), E_USER_DEPRECATED);
+
+ return;
+ }
+
+ $this->sendPhpResponse($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 $exception An \Exception or FlattenException instance
+ */
+ public function sendPhpResponse($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.': '.$value, false);
+ }
+ header('Content-Type: text/html; charset='.$this->charset);
+ }
+
+ echo $this->decorate($this->getContent($exception), $this->getStylesheet($exception));
+ }
+
+ /**
+ * Creates the error Response associated with the given Exception.
+ *
+ * @param \Exception|FlattenException $exception An \Exception or FlattenException instance
+ *
+ * @return Response A Response instance
+ *
+ * @deprecated since 2.8, to be removed in 3.0.
+ */
+ public function createResponse($exception)
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+ if (!$exception instanceof FlattenException) {
+ $exception = FlattenException::create($exception);
+ }
+
+ return Response::create($this->getHtml($exception), $exception->getStatusCode(), $exception->getHeaders())->setCharset($this->charset);
+ }
+
+ /**
+ * Gets the full HTML content associated with the given exception.
+ *
+ * @param \Exception|FlattenException $exception An \Exception or FlattenException instance
+ *
+ * @return string The HTML content as a string
+ */
+ public function getHtml($exception)
+ {
+ if (!$exception instanceof FlattenException) {
+ $exception = FlattenException::create($exception);
+ }
+
+ return $this->decorate($this->getContent($exception), $this->getStylesheet($exception));
+ }
+
+ /**
+ * 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 = $this->formatClass($e['class']);
+ $message = nl2br($this->escapeHtml($e['message']));
+ $content .= sprintf(<<<'EOF'
+ <h2 class="block_exception clear_fix">
+ <span class="exception_counter">%d/%d</span>
+ <span class="exception_title">%s%s:</span>
+ <span class="exception_message">%s</span>
+ </h2>
+ <div class="block">
+ <ol class="traces list_exception">
+
+EOF
+ , $ind, $total, $class, $this->formatPath($e['trace'][0]['file'], $e['trace'][0]['line']), $message);
+ foreach ($e['trace'] as $trace) {
+ $content .= ' <li>';
+ if ($trace['function']) {
+ $content .= sprintf('at %s%s%s(%s)', $this->formatClass($trace['class']), $trace['type'], $trace['function'], $this->formatArgs($trace['args']));
+ }
+ if (isset($trace['file']) && isset($trace['line'])) {
+ $content .= $this->formatPath($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) {
+ $title = sprintf('Exception thrown when handling an exception (%s: %s)', get_class($e), $this->escapeHtml($e->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; cursor: default; }
+ .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 .exception_counter { background-color: #fff; color: #333; padding: 6px; float: left; margin-right: 10px; float: left; display: block; }
+ .sf-reset .exception_title { margin-left: 3em; margin-bottom: 0.7em; display: block; }
+ .sf-reset .exception_message { margin-left: 3em; display: block; }
+ .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;
+ word-wrap: break-word;
+ }
+ .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 a { background:none; color:#868686; text-decoration:none; }
+ .sf-reset 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, $css)
+ {
+ return <<<EOF
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="{$this->charset}" />
+ <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>
+ $content
+ </body>
+</html>
+EOF;
+ }
+
+ private function formatClass($class)
+ {
+ $parts = explode('\\', $class);
+
+ return sprintf('<abbr title="%s">%s</abbr>', $class, array_pop($parts));
+ }
+
+ private function formatPath($path, $line)
+ {
+ $path = $this->escapeHtml($path);
+ $file = preg_match('#[^/\\\\]*$#', $path, $file) ? $file[0] : $path;
+
+ if ($linkFormat = $this->fileLinkFormat) {
+ $link = strtr($this->escapeHtml($linkFormat), array('%f' => $path, '%l' => (int) $line));
+
+ return sprintf(' in <a href="%s" title="Go to source">%s line %d</a>', $link, $file, $line);
+ }
+
+ return sprintf(' in <a title="%s line %3$d" ondblclick="var f=this.innerHTML;this.innerHTML=this.title;this.title=f;">%s line %d</a>', $path, $file, $line);
+ }
+
+ /**
+ * 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)', $this->formatClass($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'", $this->escapeHtml($item[1]));
+ } 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 {
+ $formattedValue = str_replace("\n", '', var_export($this->escapeHtml((string) $item[1]), true));
+ }
+
+ $result[] = is_int($key) ? $formattedValue : sprintf("'%s' => %s", $key, $formattedValue);
+ }
+
+ return implode(', ', $result);
+ }
+
+ /**
+ * Returns an UTF-8 and HTML encoded string.
+ *
+ * @deprecated since version 2.7, to be removed in 3.0.
+ */
+ protected static function utf8Htmlize($str)
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since version 2.7 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+ return htmlspecialchars($str, ENT_QUOTES | (PHP_VERSION_ID >= 50400 ? ENT_SUBSTITUTE : 0), 'UTF-8');
+ }
+
+ /**
+ * HTML-encodes a string.
+ */
+ private function escapeHtml($str)
+ {
+ return htmlspecialchars($str, ENT_QUOTES | (PHP_VERSION_ID >= 50400 ? ENT_SUBSTITUTE : 0), $this->charset);
+ }
+
+ /**
+ * @internal
+ */
+ public function catchOutput($buffer)
+ {
+ $this->caughtBuffer = $buffer;
+
+ return '';
+ }
+
+ /**
+ * @internal
+ */
+ public function cleanOutput($buffer)
+ {
+ if ($this->caughtLength) {
+ // use substr_replace() instead of substr() for mbstring overloading resistance
+ $cleanBuffer = substr_replace($buffer, '', 0, $this->caughtLength);
+ if (isset($cleanBuffer[0])) {
+ $buffer = $cleanBuffer;
+ }
+ }
+
+ return $buffer;
+ }
+}
projects / yaffs-website / blobdiff