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Initial version of the new error/exception page.

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This commit is contained in:
resurtm
2013-05-23 22:34:37 +06:00
parent b317c082df
commit 89bbdae6c1
4 changed files with 334 additions and 192 deletions
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217
framework/yii/base/ErrorHandler.php
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@ -7,6 +7,8 @@
namespace yii\base;
use Yii;
/**
* ErrorHandler handles uncaught PHP errors and exceptions.
*
@ -31,28 +33,25 @@ class ErrorHandler extends Component
*/
public $discardExistingOutput = true;
/**
* @var string the route (eg 'site/error') to the controller action that will be used to display external errors.
* Inside the action, it can retrieve the error information by \Yii::$app->errorHandler->error.
* This property defaults to null, meaning ErrorHandler will handle the error display.
* @var string the route (e.g. 'site/error') to the controller action that will be used
* to display external errors. Inside the action, it can retrieve the error information
* by Yii::$app->errorHandler->error. This property defaults to null, meaning ErrorHandler
* will handle the error display.
*/
public $errorAction;
/**
* @var string the path of the view file for rendering exceptions
* @var string the path of the view file for rendering exceptions and errors.
*/
public $exceptionView = '@yii/views/exception.php';
public $view = '@yii/views/errorHandler.php';
/**
* @var string the path of the view file for rendering errors
*/
public $errorView = '@yii/views/error.php';
/**
* @var \Exception the exception that is being handled currently
* @var \Exception the exception that is being handled currently.
*/
public $exception;
/**
* Handles exception
* @param \Exception $exception
* Handles exception.
* @param \Exception $exception to be handled.
*/
public function handle($exception)
{
@ -66,14 +65,16 @@ class ErrorHandler extends Component
}
/**
* Renders exception
* @param \Exception $exception
* Renders exception.
* @param \Exception $exception to be handled.
*/
protected function renderException($exception)
{
if ($this->errorAction !== null) {
\Yii::$app->runAction($this->errorAction);
} elseif (\Yii::$app instanceof \yii\web\Application) {
Yii::$app->runAction($this->errorAction);
} elseif (!(Yii::$app instanceof \yii\web\Application)) {
Yii::$app->renderException($exception);
} else {
if (!headers_sent()) {
if ($exception instanceof HttpException) {
header('HTTP/1.0 ' . $exception->statusCode . ' ' . $exception->getName());
@ -82,7 +83,7 @@ class ErrorHandler extends Component
}
}
if (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] === 'XMLHttpRequest') {
\Yii::$app->renderException($exception);
Yii::$app->renderException($exception);
} else {
// if there is an error during error rendering it's useful to
// display PHP error in debug mode instead of a blank screen
@ -90,177 +91,25 @@ class ErrorHandler extends Component
ini_set('display_errors', 1);
}
$view = new View;
if (!YII_DEBUG || $exception instanceof UserException) {
$viewName = $this->errorView;
} else {
$viewName = $this->exceptionView;
}
echo $view->renderFile($viewName, array(
'exception' => $exception,
), $this);
$view = new View();
echo $view->renderFile($this->view, array('e' => $exception), $this);
}
} else {
\Yii::$app->renderException($exception);
}
}
/**
* Returns server and Yii version information.
* @return string server version information.
*/
public function getVersionInfo()
{
$version = '<a href="http://www.yiiframework.com/">Yii Framework</a>/' . \Yii::getVersion();
if (isset($_SERVER['SERVER_SOFTWARE'])) {
$version = $_SERVER['SERVER_SOFTWARE'] . ' ' . $version;
}
return $version;
}
/**
* Converts arguments array to its string representation
*
* @param array $args arguments array to be converted
* @return string string representation of the arguments array
*/
public function argumentsToString($args)
{
$isAssoc = $args !== array_values($args);
$count = 0;
foreach ($args as $key => $value) {
$count++;
if ($count >= 5) {
if ($count > 5) {
unset($args[$key]);
} else {
$args[$key] = '...';
}
continue;
}
if (is_object($value)) {
$args[$key] = get_class($value);
} elseif (is_bool($value)) {
$args[$key] = $value ? 'true' : 'false';
} elseif (is_string($value)) {
if (strlen($value) > 64) {
$args[$key] = '"' . substr($value, 0, 64) . '..."';
} else {
$args[$key] = '"' . $value . '"';
}
} elseif (is_array($value)) {
$args[$key] = 'array(' . $this->argumentsToString($value) . ')';
} elseif ($value === null) {
$args[$key] = 'null';
} elseif (is_resource($value)) {
$args[$key] = 'resource';
}
if (is_string($key)) {
$args[$key] = '"' . $key . '" => ' . $args[$key];
} elseif ($isAssoc) {
$args[$key] = $key . ' => ' . $args[$key];
}
}
return implode(', ', $args);
}
/**
* Returns a value indicating whether the call stack is from application code.
* @param array $trace the trace data
* @return boolean whether the call stack is from application code.
*/
public function isCoreCode($trace)
{
if (isset($trace['file'])) {
return $trace['file'] === 'unknown' || strpos(realpath($trace['file']), YII_PATH . DIRECTORY_SEPARATOR) === 0;
}
return false;
}
/**
* Renders the source code around the error line.
* @param string $file source file path
* @param integer $errorLine the error line number
* @param integer $maxLines maximum number of lines to display
*/
public function renderSourceCode($file, $errorLine, $maxLines)
{
$errorLine--; // adjust line number to 0-based from 1-based
if ($errorLine < 0 || ($lines = @file($file)) === false || ($lineCount = count($lines)) <= $errorLine) {
return;
}
$halfLines = (int)($maxLines / 2);
$beginLine = $errorLine - $halfLines > 0 ? $errorLine - $halfLines : 0;
$endLine = $errorLine + $halfLines < $lineCount ? $errorLine + $halfLines : $lineCount - 1;
$lineNumberWidth = strlen($endLine + 1);
$output = '';
for ($i = $beginLine; $i <= $endLine; ++$i) {
$isErrorLine = $i === $errorLine;
$code = sprintf("<span class=\"ln" . ($isErrorLine ? ' error-ln' : '') . "\">%0{$lineNumberWidth}d</span> %s", $i + 1, $this->htmlEncode(str_replace("\t", ' ', $lines[$i])));
if (!$isErrorLine) {
$output .= $code;
} else {
$output .= '<span class="error">' . $code . '</span>';
}
}
echo '<div class="code"><pre>' . $output . '</pre></div>';
}
/**
* Renders calls stack trace
* @param array $trace
*/
public function renderTrace($trace)
{
$count = 0;
echo "<table>\n";
foreach ($trace as $n => $t) {
if ($this->isCoreCode($t)) {
$cssClass = 'core collapsed';
} elseif (++$count > 3) {
$cssClass = 'app collapsed';
} else {
$cssClass = 'app expanded';
}
$hasCode = isset($t['file']) && $t['file'] !== 'unknown' && is_file($t['file']);
echo "<tr class=\"trace $cssClass\"><td class=\"number\">#$n</td><td class=\"content\">";
echo '<div class="trace-file">';
if ($hasCode) {
echo '<div class="plus">+</div><div class="minus">-</div>';
}
echo '&nbsp;';
if (isset($t['file'])) {
echo $this->htmlEncode($t['file']) . '(' . $t['line'] . '): ';
}
if (!empty($t['class'])) {
echo '<strong>' . $t['class'] . '</strong>' . $t['type'];
}
echo '<strong>' . $t['function'] . '</strong>';
echo '(' . (empty($t['args']) ? '' : $this->htmlEncode($this->argumentsToString($t['args']))) . ')';
echo '</div>';
if ($hasCode) {
$this->renderSourceCode($t['file'], $t['line'], $this->maxTraceSourceLines);
}
echo "</td></tr>\n";
}
echo '</table>';
}
/**
* Converts special characters to HTML entities
* @param string $text text to encode
* @return string
* Converts special characters to HTML entities.
* @param string $text to encode.
* @return string encoded text.
*/
public function htmlEncode($text)
{
return htmlspecialchars($text, ENT_QUOTES, \Yii::$app->charset);
return htmlspecialchars($text, ENT_QUOTES, Yii::$app->charset);
}
/**
* Removes all output echoed before calling this method.
*/
public function clearOutput()
{
// the following manual level counting is to deal with zlib.output_compression set to On
@ -268,16 +117,4 @@ class ErrorHandler extends Component
@ob_end_clean();
}
}
/**
* @param \Exception $exception
*/
public function renderAsHtml($exception)
{
$view = new View;
$name = !YII_DEBUG || $exception instanceof HttpException ? $this->errorView : $this->exceptionView;
echo $view->renderFile($name, array(
'exception' => $exception,
), $this);
}
}