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msd2/tracking/piwik/core/ExceptionHandler.php

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+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik;
+
+use Exception;
+use Interop\Container\Exception\ContainerException;
+use Piwik\API\Request;
+use Piwik\API\ResponseBuilder;
+use Piwik\Container\ContainerDoesNotExistException;
+use Piwik\Container\StaticContainer;
+use Piwik\Plugins\CoreAdminHome\CustomLogo;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Contains Piwik's uncaught exception handler.
+ */
+class ExceptionHandler
+{
+    public static function setUp()
+    {
+        set_exception_handler(array('Piwik\ExceptionHandler', 'handleException'));
+    }
+
+    /**
+     * @param Exception|\Throwable $exception
+     */
+    public static function handleException($exception)
+    {
+        if (Common::isPhpCliMode()) {
+            self::dieWithCliError($exception);
+        }
+
+        self::dieWithHtmlErrorPage($exception);
+    }
+
+    /**
+     * @param Exception|\Throwable $exception
+     */
+    public static function dieWithCliError($exception)
+    {
+        self::logException($exception);
+
+        $message = $exception->getMessage();
+
+        if (!method_exists($exception, 'isHtmlMessage') || !$exception->isHtmlMessage()) {
+            $message = strip_tags(str_replace('<br />', PHP_EOL, $message));
+        }
+
+        $message = sprintf(
+            "Uncaught exception: %s\nin %s line %d\n%s\n",
+            $message,
+            $exception->getFile(),
+            $exception->getLine(),
+            $exception->getTraceAsString()
+        );
+
+        echo $message;
+
+        exit(1);
+    }
+
+    /**
+     * @param Exception|\Throwable $exception
+     */
+    public static function dieWithHtmlErrorPage($exception)
+    {
+        self::logException($exception);
+
+        Common::sendHeader('Content-Type: text/html; charset=utf-8');
+
+        try {
+            echo self::getErrorResponse($exception);
+        } catch(Exception $e) {
+            // When there are failures while generating the HTML error response itself,
+            // we simply print out the error message instead.
+            echo $exception->getMessage();
+        }
+
+        exit(1);
+    }
+
+    /**
+     * @param Exception|\Throwable $ex
+     */
+    private static function getErrorResponse($ex)
+    {
+        $debugTrace = $ex->getTraceAsString();
+
+        $message = $ex->getMessage();
+
+        $isHtmlMessage = method_exists($ex, 'isHtmlMessage') && $ex->isHtmlMessage();
+
+        if (!$isHtmlMessage && Request::isApiRequest($_GET)) {
+
+            $outputFormat = strtolower(Common::getRequestVar('format', 'xml', 'string', $_GET + $_POST));
+            $response = new ResponseBuilder($outputFormat);
+            return $response->getResponseException($ex);
+
+        } elseif (!$isHtmlMessage) {
+            $message = Common::sanitizeInputValue($message);
+        }
+
+
+        $logoHeaderUrl = 'plugins/Morpheus/images/logo.svg';
+        $logoFaviconUrl = 'plugins/CoreHome/images/favicon.png';
+        try {
+            $logo = new CustomLogo();
+            if ($logo->hasSVGLogo()) {
+                $logoHeaderUrl = $logo->getSVGLogoUrl();
+            } else {
+                $logoHeaderUrl = $logo->getHeaderLogoUrl();
+            }
+            $logoFaviconUrl = $logo->getPathUserFavicon();
+        } catch (Exception $ex) {
+            try {
+                Log::debug($ex);
+            } catch (\Exception $otherEx) {
+                // DI container may not be setup at this point
+            }
+        }
+
+        $result = Piwik_GetErrorMessagePage($message, $debugTrace, true, true, $logoHeaderUrl, $logoFaviconUrl);
+
+        try {
+            /**
+             * Triggered before a Piwik error page is displayed to the user.
+             *
+             * This event can be used to modify the content of the error page that is displayed when
+             * an exception is caught.
+             *
+             * @param string &$result The HTML of the error page.
+             * @param Exception $ex The Exception displayed in the error page.
+             */
+            Piwik::postEvent('FrontController.modifyErrorPage', array(&$result, $ex));
+        } catch (ContainerDoesNotExistException $ex) {
+            // this can happen when an error occurs before the Piwik environment is created
+        }
+
+        return $result;
+    }
+
+    private static function logException($exception)
+    {
+        try {
+            StaticContainer::get(LoggerInterface::class)->error('Uncaught exception: {exception}', [
+                'exception' => $exception,
+                'ignoreInScreenWriter' => true,
+            ]);
+        } catch (ContainerException $ex) {
+            // ignore (occurs if exception is thrown when resolving DI entries)
+        } catch (ContainerDoesNotExistException $ex) {
+            // ignore
+        }
+    }
+}