From 25e434bce4986b48bd72729a55aa1096e5a76be3 Mon Sep 17 00:00:00 2001
From: Igor Scheller <igor.scheller@igorshp.de>
Date: Fri, 24 Nov 2017 15:08:43 +0100
Subject: Refactored ExceptionHandler

---
 src/Exceptions/Handlers/HandlerInterface.php  | 21 +++++++
 src/Exceptions/Handlers/Legacy.php            | 42 +++++++++++++
 src/Exceptions/Handlers/LegacyDevelopment.php | 57 ++++++++++++++++++
 src/Exceptions/Handlers/Whoops.php            | 85 +++++++++++++++++++++++++++
 4 files changed, 205 insertions(+)
 create mode 100644 src/Exceptions/Handlers/HandlerInterface.php
 create mode 100644 src/Exceptions/Handlers/Legacy.php
 create mode 100644 src/Exceptions/Handlers/LegacyDevelopment.php
 create mode 100644 src/Exceptions/Handlers/Whoops.php

(limited to 'src/Exceptions/Handlers')

diff --git a/src/Exceptions/Handlers/HandlerInterface.php b/src/Exceptions/Handlers/HandlerInterface.php
new file mode 100644
index 00000000..9de33e1f
--- /dev/null
+++ b/src/Exceptions/Handlers/HandlerInterface.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Engelsystem\Exceptions\Handlers;
+
+use Engelsystem\Http\Request;
+use Throwable;
+
+interface HandlerInterface
+{
+    /**
+     * @param Request   $request
+     * @param Throwable $e
+     */
+    public function render($request, Throwable $e);
+
+    /**
+     * @param Throwable $e
+     * @return
+     */
+    public function report(Throwable $e);
+}
diff --git a/src/Exceptions/Handlers/Legacy.php b/src/Exceptions/Handlers/Legacy.php
new file mode 100644
index 00000000..39683f72
--- /dev/null
+++ b/src/Exceptions/Handlers/Legacy.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Engelsystem\Exceptions\Handlers;
+
+use Engelsystem\Http\Request;
+use Throwable;
+
+class Legacy implements HandlerInterface
+{
+    /**
+     * @param Request   $request
+     * @param Throwable $e
+     */
+    public function render($request, Throwable $e)
+    {
+        echo 'An <del>un</del>expected error occurred, a team of untrained monkeys has been dispatched to deal with it.';
+    }
+
+    /**
+     * @param Throwable $e
+     */
+    public function report(Throwable $e)
+    {
+        error_log(sprintf('Exception: Code: %s, Message: %s, File: %s:%u, Trace: %s',
+            $e->getCode(),
+            $e->getMessage(),
+            $this->stripBasePath($e->getFile()),
+            $e->getLine(),
+            json_encode($e->getTrace())
+        ));
+    }
+
+    /**
+     * @param string $path
+     * @return string
+     */
+    protected function stripBasePath($path)
+    {
+        $basePath = realpath(__DIR__ . '/../../..') . '/';
+        return str_replace($basePath, '', $path);
+    }
+}
diff --git a/src/Exceptions/Handlers/LegacyDevelopment.php b/src/Exceptions/Handlers/LegacyDevelopment.php
new file mode 100644
index 00000000..86f86f4c
--- /dev/null
+++ b/src/Exceptions/Handlers/LegacyDevelopment.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Engelsystem\Exceptions\Handlers;
+
+use Engelsystem\Http\Request;
+use Throwable;
+
+class LegacyDevelopment extends Legacy
+{
+    /**
+     * @param Request   $request
+     * @param Throwable $e
+     */
+    public function render($request, Throwable $e)
+    {
+        $file = $this->stripBasePath($e->getFile());
+
+        echo '<pre style="background-color:#333;color:#ccc;z-index:1000;position:fixed;bottom:1em;padding:1em;width:97%;max-height: 90%;overflow-y:auto;">';
+        echo sprintf('%s: (%s)' . PHP_EOL, get_class($e), $e->getCode());
+        $data = [
+            'string'     => $e->getMessage(),
+            'file'       => $file . ':' . $e->getLine(),
+            'stacktrace' => $this->formatStackTrace($e->getTrace()),
+        ];
+        var_dump($data);
+        echo '</pre>';
+    }
+
+    /**
+     * @param array $stackTrace
+     * @return array
+     */
+    protected function formatStackTrace($stackTrace)
+    {
+        $return = [];
+        $stackTrace = array_reverse($stackTrace);
+
+        foreach ($stackTrace as $trace) {
+            $path = '';
+            $line = '';
+
+            if (isset($trace['file']) && isset($trace['line'])) {
+                $path = $this->stripBasePath($trace['file']);
+                $line = $trace['line'];
+            }
+
+            $functionName = $trace['function'];
+
+            $return[] = [
+                'file'        => $path . ':' . $line,
+                $functionName => isset($trace['args']) ? $trace['args'] : null,
+            ];
+        }
+
+        return $return;
+    }
+}
diff --git a/src/Exceptions/Handlers/Whoops.php b/src/Exceptions/Handlers/Whoops.php
new file mode 100644
index 00000000..807f5eb0
--- /dev/null
+++ b/src/Exceptions/Handlers/Whoops.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Engelsystem\Exceptions\Handlers;
+
+use Engelsystem\Application;
+use Engelsystem\Container\Container;
+use Engelsystem\Http\Request;
+use Throwable;
+use Whoops\Handler\JsonResponseHandler;
+use Whoops\Handler\PrettyPageHandler;
+use Whoops\Run as WhoopsRunner;
+
+class Whoops extends Legacy implements HandlerInterface
+{
+    /** @var Application */
+    protected $app;
+
+    public function __construct(Container $app)
+    {
+        $this->app = $app;
+    }
+
+    /**
+     * @param Request   $request
+     * @param Throwable $e
+     */
+    public function render($request, Throwable $e)
+    {
+        $whoops = $this->app->make(WhoopsRunner::class);
+        $handler = $this->getPrettyPageHandler($e);
+        $whoops->pushHandler($handler);
+
+        if ($request->isXmlHttpRequest()) {
+            $handler = $this->getJsonResponseHandler();
+            $whoops->pushHandler($handler);
+        }
+
+        echo $whoops->handleException($e);
+    }
+
+    /**
+     * @param Throwable $e
+     * @return PrettyPageHandler
+     */
+    protected function getPrettyPageHandler(Throwable $e)
+    {
+        $handler = $this->app->make(PrettyPageHandler::class);
+
+        $handler->setPageTitle('Just another ' . get_class($e) . ' to fix :(');
+        $handler->setApplicationPaths([realpath(__DIR__ . '/../..')]);
+
+        $data = $this->getData();
+        $handler->addDataTable('Application', $data);
+
+        return $handler;
+    }
+
+    /**
+     * @return JsonResponseHandler
+     */
+    protected function getJsonResponseHandler()
+    {
+        $handler = $this->app->make(JsonResponseHandler::class);
+        $handler->setJsonApi(true);
+        $handler->addTraceToOutput(true);
+
+        return $handler;
+    }
+
+    /**
+     * Aggregate application data
+     *
+     * @return array
+     */
+    protected function getData()
+    {
+        global $user;
+
+        $data = [];
+        $data['user'] = $user;
+        $data['Booted'] = $this->app->isBooted();
+
+        return $data;
+    }
+}
-- 
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