1 files changed, 158 insertions, 0 deletions
diff --git a/application/controllers/ErrorController.php b/application/controllers/ErrorController.php
new file mode 100644
index 0000000..580015b
--- /dev/null
+++ b/application/controllers/ErrorController.php
@@ -0,0 +1,158 @@
+<?php
+/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Controllers;
+
+use Icinga\Exception\IcingaException;
+use Zend_Controller_Plugin_ErrorHandler;
+use Icinga\Application\Icinga;
+use Icinga\Application\Logger;
+use Icinga\Exception\Http\HttpExceptionInterface;
+use Icinga\Exception\MissingParameterException;
+use Icinga\Security\SecurityException;
+use Icinga\Web\Controller\ActionController;
+use Icinga\Web\Url;
+
+/**
+ * Application wide controller for displaying exceptions
+ */
+class ErrorController extends ActionController
+{
+    /**
+     * Regular expression to match exceptions resulting from missing functions/classes
+     */
+    const MISSING_DEP_ERROR =
+        "/Uncaught Error:.*(?:undefined function (\S+)|Class ['\"]([^']+)['\"] not found).* in ([^:]+)/";
+
+    /**
+     * {@inheritdoc}
+     */
+    protected $requiresAuthentication = false;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function init()
+    {
+        $this->rerenderLayout = $this->params->has('renderLayout');
+    }
+
+    /**
+     * Display exception
+     */
+    public function errorAction()
+    {
+        $error      = $this->_getParam('error_handler');
+        $exception  = $error->exception;
+        /** @var \Exception $exception */
+
+        if (! ($isAuthenticated = $this->Auth()->isAuthenticated())) {
+            $this->innerLayout = 'guest-error';
+        }
+
+        $modules = Icinga::app()->getModuleManager();
+        $sourcePath = ltrim($this->_request->get('PATH_INFO'), '/');
+        $pathParts = preg_split('~/~', $sourcePath);
+        $moduleName = array_shift($pathParts);
+
+        $module = null;
+        switch ($error->type) {
+            case Zend_Controller_Plugin_ErrorHandler::EXCEPTION_NO_ROUTE:
+            case Zend_Controller_Plugin_ErrorHandler::EXCEPTION_NO_CONTROLLER:
+            case Zend_Controller_Plugin_ErrorHandler::EXCEPTION_NO_ACTION:
+                $this->getResponse()->setHttpResponseCode(404);
+                $this->view->messages = array($this->translate('Page not found.'));
+                if ($isAuthenticated) {
+                    if ($modules->hasInstalled($moduleName) && ! $modules->hasEnabled($moduleName)) {
+                        $this->view->messages[0] .= ' ' . sprintf(
+                            $this->translate('Enabling the "%s" module might help!'),
+                            $moduleName
+                        );
+                    }
+                }
+
+                break;
+            default:
+                switch (true) {
+                    case $exception instanceof HttpExceptionInterface:
+                        $this->getResponse()->setHttpResponseCode($exception->getStatusCode());
+                        foreach ($exception->getHeaders() as $name => $value) {
+                            $this->getResponse()->setHeader($name, $value, true);
+                        }
+                        break;
+                    case $exception instanceof MissingParameterException:
+                        $this->getResponse()->setHttpResponseCode(400);
+                        $this->getResponse()->setHeader(
+                            'X-Status-Reason',
+                            'Missing parameter ' . $exception->getParameter()
+                        );
+                        break;
+                    case $exception instanceof SecurityException:
+                        $this->getResponse()->setHttpResponseCode(403);
+                        break;
+                    default:
+                        $this->getResponse()->setHttpResponseCode(500);
+                        $module = $modules->hasLoaded($moduleName) ? $modules->getModule($moduleName) : null;
+                        Logger::error("%s\n%s", $exception, IcingaException::getConfidentialTraceAsString($exception));
+                        break;
+                }
+
+                // Try to narrow down why the request has failed
+                if (preg_match(self::MISSING_DEP_ERROR, $exception->getMessage(), $match)) {
+                    $sourcePath = $match[3];
+                    foreach ($modules->listLoadedModules() as $name) {
+                        $candidate = $modules->getModule($name);
+                        $modulePath = $candidate->getBaseDir();
+                        if (substr($sourcePath, 0, strlen($modulePath)) === $modulePath) {
+                            $module = $candidate;
+                            break;
+                        }
+                    }
+
+                    if (preg_match('/^(?:Icinga\\\Module\\\(\w+)|(\w+)\\\(\w+))/', $match[1] ?: $match[2], $natch)) {
+                        $this->view->requiredModule = isset($natch[1]) ? strtolower($natch[1]) : null;
+                        $this->view->requiredVendor = isset($natch[2]) ? $natch[2] : null;
+                        $this->view->requiredProject = isset($natch[3]) ? $natch[3] : null;
+                    }
+                }
+
+                $this->view->messages = array();
+
+                if ($this->getInvokeArg('displayExceptions')) {
+                    $this->view->stackTraces = array();
+
+                    do {
+                        $this->view->messages[] = $exception->getMessage();
+                        $this->view->stackTraces[] = IcingaException::getConfidentialTraceAsString($exception);
+                        $exception = $exception->getPrevious();
+                    } while ($exception !== null);
+                } else {
+                    do {
+                        $this->view->messages[] = $exception->getMessage();
+                        $exception = $exception->getPrevious();
+                    } while ($exception !== null);
+                }
+
+                break;
+        }
+
+        if ($this->getRequest()->isApiRequest()) {
+            $this->getResponse()->json()
+                ->setErrorMessage($this->view->messages[0])
+                ->sendResponse();
+        }
+
+        $this->view->module = $module;
+        $this->view->request = $error->request;
+        if (! $isAuthenticated) {
+            $this->view->hideControls = true;
+        } else {
+            $this->view->hideControls = false;
+            $this->getTabs()->add('error', array(
+                'active'    => true,
+                'label'     => $this->translate('Error'),
+                'url'       => Url::fromRequest()
+            ));
+        }
+    }
+}