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<?php |
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/** |
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* Whoops - php errors for cool kids |
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* @author Filipe Dobreira <http://github.com/filp> |
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*/ |
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namespace Whoops\Handler; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use UnexpectedValueException; |
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use Whoops\Exception\Formatter; |
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use Whoops\Util\Misc; |
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use Whoops\Util\TemplateHelper; |
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class PrettyPageHandler extends Handler |
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{ |
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/** |
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* Search paths to be scanned for resources, in the reverse |
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* order they're declared. |
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* |
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* @var array |
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*/ |
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private $searchPaths = array(); |
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/** |
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* Fast lookup cache for known resource locations. |
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* |
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* @var array |
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*/ |
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private $resourceCache = array(); |
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/** |
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* The name of the custom css file. |
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* |
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* @var string |
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*/ |
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private $customCss = null; |
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/** |
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* @var array[] |
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*/ |
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private $extraTables = array(); |
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/** |
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* @var bool |
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*/ |
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private $handleUnconditionally = false; |
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/** |
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* @var string |
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*/ |
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private $pageTitle = "Whoops! There was an error."; |
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/** |
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* A string identifier for a known IDE/text editor, or a closure |
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* that resolves a string that can be used to open a given file |
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* in an editor. If the string contains the special substrings |
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* %file or %line, they will be replaced with the correct data. |
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* |
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* @example |
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* "txmt://open?url=%file&line=%line" |
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* @var mixed $editor |
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*/ |
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protected $editor; |
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/** |
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* A list of known editor strings |
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* @var array |
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*/ |
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protected $editors = array( |
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"sublime" => "subl://open?url=file://%file&line=%line", |
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"textmate" => "txmt://open?url=file://%file&line=%line", |
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"emacs" => "emacs://open?url=file://%file&line=%line", |
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"macvim" => "mvim://open/?url=file://%file&line=%line", |
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"phpstorm" => "phpstorm://open?file=%file&line=%line", |
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); |
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/** |
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* Constructor. |
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*/ |
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public function __construct() |
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{ |
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if (ini_get('xdebug.file_link_format') || extension_loaded('xdebug')) { |
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// Register editor using xdebug's file_link_format option. |
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$this->editors['xdebug'] = function ($file, $line) { |
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return str_replace(array('%f', '%l'), array($file, $line), ini_get('xdebug.file_link_format')); |
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}; |
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} |
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// Add the default, local resource search path: |
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$this->searchPaths[] = __DIR__ . "/../Resources"; |
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} |
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/** |
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* @return int|null |
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*/ |
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public function handle() |
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{ |
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if (!$this->handleUnconditionally()) { |
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// Check conditions for outputting HTML: |
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// @todo: Make this more robust |
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if (php_sapi_name() === 'cli') { |
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// Help users who have been relying on an internal test value |
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// fix their code to the proper method |
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if (isset($_ENV['whoops-test'])) { |
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throw new \Exception( |
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'Use handleUnconditionally instead of whoops-test' |
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.' environment variable' |
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); |
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} |
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return Handler::DONE; |
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} |
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} |
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// @todo: Make this more dynamic |
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$helper = new TemplateHelper(); |
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$templateFile = $this->getResource("views/layout.html.php"); |
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$cssFile = $this->getResource("css/whoops.base.css"); |
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$zeptoFile = $this->getResource("js/zepto.min.js"); |
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$jsFile = $this->getResource("js/whoops.base.js"); |
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if ($this->customCss) { |
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$customCssFile = $this->getResource($this->customCss); |
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} |
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$inspector = $this->getInspector(); |
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$frames = $inspector->getFrames(); |
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$code = $inspector->getException()->getCode(); |
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if ($inspector->getException() instanceof \ErrorException) { |
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// ErrorExceptions wrap the php-error types within the "severity" property |
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$code = Misc::translateErrorCode($inspector->getException()->getSeverity()); |
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} |
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// List of variables that will be passed to the layout template. |
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$vars = array( |
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"page_title" => $this->getPageTitle(), |
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// @todo: Asset compiler |
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"stylesheet" => file_get_contents($cssFile), |
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"zepto" => file_get_contents($zeptoFile), |
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"javascript" => file_get_contents($jsFile), |
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// Template paths: |
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"header" => $this->getResource("views/header.html.php"), |
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"frame_list" => $this->getResource("views/frame_list.html.php"), |
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"frame_code" => $this->getResource("views/frame_code.html.php"), |
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"env_details" => $this->getResource("views/env_details.html.php"), |
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"title" => $this->getPageTitle(), |
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"name" => explode("\\", $inspector->getExceptionName()), |
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"message" => $inspector->getException()->getMessage(), |
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"code" => $code, |
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"plain_exception" => Formatter::formatExceptionPlain($inspector), |
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"frames" => $frames, |
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"has_frames" => !!count($frames), |
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"handler" => $this, |
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"handlers" => $this->getRun()->getHandlers(), |
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"tables" => array( |
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"GET Data" => $_GET, |
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"POST Data" => $_POST, |
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"Files" => $_FILES, |
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"Cookies" => $_COOKIE, |
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"Session" => isset($_SESSION) ? $_SESSION : array(), |
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"Server/Request Data" => $_SERVER, |
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"Environment Variables" => $_ENV, |
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), |
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); |
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if (isset($customCssFile)) { |
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$vars["stylesheet"] .= file_get_contents($customCssFile); |
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} |
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// Add extra entries list of data tables: |
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// @todo: Consolidate addDataTable and addDataTableCallback |
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$extraTables = array_map(function ($table) { |
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return $table instanceof \Closure ? $table() : $table; |
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}, $this->getDataTables()); |
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$vars["tables"] = array_merge($extraTables, $vars["tables"]); |
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$helper->setVariables($vars); |
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$helper->render($templateFile); |
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return Handler::QUIT; |
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} |
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/** |
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* Adds an entry to the list of tables displayed in the template. |
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* The expected data is a simple associative array. Any nested arrays |
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* will be flattened with print_r |
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* @param string $label |
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* @param array $data |
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*/ |
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public function addDataTable($label, array $data) |
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{ |
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$this->extraTables[$label] = $data; |
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} |
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/** |
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* Lazily adds an entry to the list of tables displayed in the table. |
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* The supplied callback argument will be called when the error is rendered, |
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* it should produce a simple associative array. Any nested arrays will |
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* be flattened with print_r. |
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* |
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* @throws InvalidArgumentException If $callback is not callable |
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* @param string $label |
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* @param callable $callback Callable returning an associative array |
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*/ |
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public function addDataTableCallback($label, /* callable */ $callback) |
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{ |
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if (!is_callable($callback)) { |
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throw new InvalidArgumentException('Expecting callback argument to be callable'); |
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} |
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$this->extraTables[$label] = function () use ($callback) { |
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try { |
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$result = call_user_func($callback); |
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// Only return the result if it can be iterated over by foreach(). |
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return is_array($result) || $result instanceof \Traversable ? $result : array(); |
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} catch (\Exception $e) { |
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// Don't allow failure to break the rendering of the original exception. |
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return array(); |
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} |
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}; |
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} |
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/** |
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* Returns all the extra data tables registered with this handler. |
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* Optionally accepts a 'label' parameter, to only return the data |
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* table under that label. |
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* @param string|null $label |
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* @return array[]|callable |
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*/ |
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public function getDataTables($label = null) |
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{ |
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if ($label !== null) { |
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return isset($this->extraTables[$label]) ? |
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$this->extraTables[$label] : array(); |
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} |
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return $this->extraTables; |
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} |
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/** |
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* Allows to disable all attempts to dynamically decide whether to |
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* handle or return prematurely. |
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* Set this to ensure that the handler will perform no matter what. |
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* @param bool|null $value |
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* @return bool|null |
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*/ |
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public function handleUnconditionally($value = null) |
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{ |
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if (func_num_args() == 0) { |
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return $this->handleUnconditionally; |
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} |
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$this->handleUnconditionally = (bool) $value; |
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} |
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/** |
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* Adds an editor resolver, identified by a string |
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* name, and that may be a string path, or a callable |
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* resolver. If the callable returns a string, it will |
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* be set as the file reference's href attribute. |
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* |
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* @example |
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* $run->addEditor('macvim', "mvim://open?url=file://%file&line=%line") |
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* @example |
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* $run->addEditor('remove-it', function($file, $line) { |
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* unlink($file); |
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* return "http://stackoverflow.com"; |
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* }); |
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* @param string $identifier |
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* @param string $resolver |
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*/ |
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public function addEditor($identifier, $resolver) |
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{ |
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$this->editors[$identifier] = $resolver; |
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} |
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/** |
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* Set the editor to use to open referenced files, by a string |
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* identifier, or a callable that will be executed for every |
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* file reference, with a $file and $line argument, and should |
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* return a string. |
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* |
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* @example |
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* $run->setEditor(function($file, $line) { return "file:///{$file}"; }); |
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* @example |
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* $run->setEditor('sublime'); |
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* |
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* @throws InvalidArgumentException If invalid argument identifier provided |
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* @param string|callable $editor |
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*/ |
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public function setEditor($editor) |
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{ |
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if (!is_callable($editor) && !isset($this->editors[$editor])) { |
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throw new InvalidArgumentException( |
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"Unknown editor identifier: $editor. Known editors:" . |
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implode(",", array_keys($this->editors)) |
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); |
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} |
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$this->editor = $editor; |
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} |
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/** |
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* Given a string file path, and an integer file line, |
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* executes the editor resolver and returns, if available, |
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* a string that may be used as the href property for that |
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* file reference. |
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* |
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* @throws InvalidArgumentException If editor resolver does not return a string |
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* @param string $filePath |
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* @param int $line |
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* @return string|bool |
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*/ |
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public function getEditorHref($filePath, $line) |
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{ |
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$editor = $this->getEditor($filePath, $line); |
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if (!$editor) { |
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return false; |
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} |
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332
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// Check that the editor is a string, and replace the |
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// %line and %file placeholders: |
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4 |
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if (!isset($editor['url']) || !is_string($editor['url'])) { |
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throw new UnexpectedValueException( |
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__METHOD__ . " should always resolve to a string or a valid editor array; got something else instead." |
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); |
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} |
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$editor['url'] = str_replace("%line", rawurlencode($line), $editor['url']); |
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$editor['url'] = str_replace("%file", rawurlencode($filePath), $editor['url']); |
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return $editor['url']; |
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} |
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/** |
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* Given a boolean if the editor link should |
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* act as an Ajax request. The editor must be a |
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* valid callable function/closure |
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* |
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* @throws UnexpectedValueException If editor resolver does not return a boolean |
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* @param string $filePath |
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* @param int $line |
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* @return bool |
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*/ |
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public function getEditorAjax($filePath, $line) |
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{ |
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$editor = $this->getEditor($filePath, $line); |
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// Check that the ajax is a bool |
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if (!isset($editor['ajax']) || !is_bool($editor['ajax'])) { |
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throw new UnexpectedValueException( |
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__METHOD__ . " should always resolve to a bool; got something else instead." |
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); |
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} |
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return $editor['ajax']; |
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} |
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|
|
|
/** |
370
|
|
|
* Given a boolean if the editor link should |
371
|
|
|
* act as an Ajax request. The editor must be a |
372
|
|
|
* valid callable function/closure |
373
|
|
|
* |
374
|
|
|
* @throws UnexpectedValueException If editor resolver does not return a boolean |
375
|
|
|
* @param string $filePath |
376
|
|
|
* @param int $line |
377
|
|
|
* @return mixed |
378
|
|
|
*/ |
379
|
1 |
|
protected function getEditor($filePath, $line) |
380
|
|
|
{ |
381
|
1 |
|
if ($this->editor === null && !is_string($this->editor) && !is_callable($this->editor)) |
382
|
1 |
|
{ |
383
|
|
|
return false; |
384
|
|
|
} |
385
|
1 |
|
else if(is_string($this->editor) && isset($this->editors[$this->editor]) && !is_callable($this->editors[$this->editor])) |
386
|
1 |
|
{ |
387
|
|
|
return array( |
388
|
|
|
'ajax' => false, |
389
|
|
|
'url' => $this->editors[$this->editor], |
390
|
|
|
); |
391
|
|
|
} |
392
|
1 |
|
else if(is_callable($this->editor) || (isset($this->editors[$this->editor]) && is_callable($this->editors[$this->editor]))) |
393
|
1 |
|
{ |
394
|
1 |
|
if(is_callable($this->editor)) |
395
|
1 |
|
{ |
396
|
|
|
$callback = call_user_func($this->editor, $filePath, $line); |
397
|
|
|
} |
398
|
|
|
else |
399
|
|
|
{ |
400
|
1 |
|
$callback = call_user_func($this->editors[$this->editor], $filePath, $line); |
401
|
|
|
} |
402
|
|
|
|
403
|
|
|
return array( |
404
|
1 |
|
'ajax' => isset($callback['ajax']) ? $callback['ajax'] : false, |
405
|
1 |
|
'url' => (is_array($callback) ? $callback['url'] : $callback), |
406
|
1 |
|
); |
407
|
|
|
} |
408
|
|
|
|
409
|
|
|
return false; |
410
|
|
|
} |
411
|
|
|
|
412
|
|
|
/** |
413
|
|
|
* @param string $title |
414
|
|
|
* @return void |
415
|
|
|
*/ |
416
|
1 |
|
public function setPageTitle($title) |
417
|
|
|
{ |
418
|
1 |
|
$this->pageTitle = (string) $title; |
419
|
1 |
|
} |
420
|
|
|
|
421
|
|
|
/** |
422
|
|
|
* @return string |
423
|
|
|
*/ |
424
|
1 |
|
public function getPageTitle() |
425
|
|
|
{ |
426
|
1 |
|
return $this->pageTitle; |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
/** |
430
|
|
|
* Adds a path to the list of paths to be searched for |
431
|
|
|
* resources. |
432
|
|
|
* |
433
|
|
|
* @throws InvalidArgumnetException If $path is not a valid directory |
434
|
|
|
* |
435
|
|
|
* @param string $path |
436
|
|
|
* @return void |
437
|
|
|
*/ |
438
|
2 |
|
public function addResourcePath($path) |
439
|
|
|
{ |
440
|
2 |
|
if (!is_dir($path)) { |
441
|
1 |
|
throw new InvalidArgumentException( |
442
|
1 |
|
"'$path' is not a valid directory" |
443
|
1 |
|
); |
444
|
|
|
} |
445
|
|
|
|
446
|
1 |
|
array_unshift($this->searchPaths, $path); |
447
|
1 |
|
} |
448
|
|
|
|
449
|
|
|
/** |
450
|
|
|
* Adds a custom css file to be loaded. |
451
|
|
|
* |
452
|
|
|
* @param string $name |
453
|
|
|
* @return void |
454
|
|
|
*/ |
455
|
|
|
public function addCustomCss($name) |
456
|
|
|
{ |
457
|
|
|
$this->customCss = $name; |
458
|
|
|
} |
459
|
|
|
|
460
|
|
|
/** |
461
|
|
|
* @return array |
462
|
|
|
*/ |
463
|
1 |
|
public function getResourcePaths() |
464
|
|
|
{ |
465
|
1 |
|
return $this->searchPaths; |
466
|
|
|
} |
467
|
|
|
|
468
|
|
|
/** |
469
|
|
|
* Finds a resource, by its relative path, in all available search paths. |
470
|
|
|
* The search is performed starting at the last search path, and all the |
471
|
|
|
* way back to the first, enabling a cascading-type system of overrides |
472
|
|
|
* for all resources. |
473
|
|
|
* |
474
|
|
|
* @throws RuntimeException If resource cannot be found in any of the available paths |
475
|
|
|
* |
476
|
|
|
* @param string $resource |
477
|
|
|
* @return string |
478
|
|
|
*/ |
479
|
|
|
protected function getResource($resource) |
480
|
|
|
{ |
481
|
|
|
// If the resource was found before, we can speed things up |
482
|
|
|
// by caching its absolute, resolved path: |
483
|
|
|
if (isset($this->resourceCache[$resource])) { |
484
|
|
|
return $this->resourceCache[$resource]; |
485
|
|
|
} |
486
|
|
|
|
487
|
|
|
// Search through available search paths, until we find the |
488
|
|
|
// resource we're after: |
489
|
|
|
foreach ($this->searchPaths as $path) { |
490
|
|
|
$fullPath = $path . "/$resource"; |
491
|
|
|
|
492
|
|
|
if (is_file($fullPath)) { |
493
|
|
|
// Cache the result: |
494
|
|
|
$this->resourceCache[$resource] = $fullPath; |
495
|
|
|
return $fullPath; |
496
|
|
|
} |
497
|
|
|
} |
498
|
|
|
|
499
|
|
|
// If we got this far, nothing was found. |
500
|
|
|
throw new RuntimeException( |
501
|
|
|
"Could not find resource '$resource' in any resource paths." |
502
|
|
|
. "(searched: " . join(", ", $this->searchPaths). ")" |
503
|
|
|
); |
504
|
|
|
} |
505
|
|
|
|
506
|
|
|
/** |
507
|
|
|
* @deprecated |
508
|
|
|
* |
509
|
|
|
* @return string |
510
|
|
|
*/ |
511
|
|
|
public function getResourcesPath() |
512
|
|
|
{ |
513
|
|
|
$allPaths = $this->getResourcePaths(); |
514
|
|
|
|
515
|
|
|
// Compat: return only the first path added |
516
|
|
|
return end($allPaths) ?: null; |
517
|
|
|
} |
518
|
|
|
|
519
|
|
|
/** |
520
|
|
|
* @deprecated |
521
|
|
|
* |
522
|
|
|
* @param string $resourcesPath |
523
|
|
|
* @return void |
524
|
|
|
*/ |
525
|
|
|
public function setResourcesPath($resourcesPath) |
526
|
|
|
{ |
527
|
|
|
$this->addResourcePath($resourcesPath); |
528
|
|
|
} |
529
|
|
|
} |
530
|
|
|
|
If an expression can have both
false
, andnull
as possible values. It is generally a good practice to always use strict comparison to clearly distinguish between those two values.