git-svn-id: https://msi/svn/firstRepo/Service/branches/Slim3@40 0f545695-f87b-41b6-9a03-7f16563b5454

2016-01-05 21:43:12 +00:00
parent 4318dd829f
commit 00d78a2ba8
46 changed files with 4960 additions and 32 deletions
@@ -0,0 +1,157 @@
+<?php
+/**
+ * Slim Framework (http://slimframework.com)
+ *
+ * @link      https://github.com/slimphp/Slim
+ * @copyright Copyright (c) 2011-2015 Josh Lockhart
+ * @license   https://github.com/slimphp/Slim/blob/3.x/LICENSE.md (MIT License)
+ */
+namespace Slim\Handlers;
+
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Slim\Http\Body;
+
+/**
+ * Default Slim application not found handler.
+ *
+ * It outputs a simple message in either JSON, XML or HTML based on the
+ * Accept header.
+ */
+class NotFound
+{
+    /**
+     * Known handled content types
+     *
+     * @var array
+     */
+    protected $knownContentTypes = [
+        'application/json',
+        'application/xml',
+        'text/xml',
+        'text/html',
+    ];
+
+    /**
+     * Invoke not found handler
+     *
+     * @param  ServerRequestInterface $request  The most recent Request object
+     * @param  ResponseInterface      $response The most recent Response object
+     *
+     * @return ResponseInterface
+     */
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response)
+    {
+        $contentType = $this->determineContentType($request);
+        switch ($contentType) {
+            case 'application/json':
+                $output = $this->renderJsonNotFoundOutput($request, $response);
+                break;
+
+            case 'text/xml':
+            case 'application/xml':
+                $output = $this->renderXmlNotFoundOutput($request, $response);
+                break;
+
+            case 'text/html':
+                $output = $this->renderHtmlNotFoundOutput($request, $response);
+        }
+
+        $body = new Body(fopen('php://temp', 'r+'));
+        $body->write($output);
+
+        return $response->withStatus(404)
+                        ->withHeader('Content-Type', $contentType)
+                        ->withBody($body);
+    }
+
+    /**
+     * Determine which content type we know about is wanted using Accept header
+     *
+     * @param ServerRequestInterface $request
+     * @return string
+     */
+    private function determineContentType(ServerRequestInterface $request)
+    {
+        $acceptHeader = $request->getHeaderLine('Accept');
+        $selectedContentTypes = array_intersect(explode(',', $acceptHeader), $this->knownContentTypes);
+
+        if (count($selectedContentTypes)) {
+            return $selectedContentTypes[0];
+        }
+
+        return 'text/html';
+    }
+
+    /**
+     * Return a response for application/json content not found
+     *
+     * @param  ServerRequestInterface $request  The most recent Request object
+     * @param  ResponseInterface      $response The most recent Response object
+     *
+     * @return ResponseInterface
+     */
+    protected function renderJsonNotFoundOutput(ServerRequestInterface $request, ResponseInterface $response)
+    {
+        return '{"message":"Not found"}';
+    }
+
+    /**
+     * Return a response for xml content not found
+     *
+     * @param  ServerRequestInterface $request  The most recent Request object
+     * @param  ResponseInterface      $response The most recent Response object
+     *
+     * @return ResponseInterface
+     */
+    protected function renderXmlNotFoundOutput(ServerRequestInterface $request, ResponseInterface $response)
+    {
+        return '<root><message>Not found</message></root>';
+    }
+
+    /**
+     * Return a response for text/html content not found
+     *
+     * @param  ServerRequestInterface $request  The most recent Request object
+     * @param  ResponseInterface      $response The most recent Response object
+     *
+     * @return ResponseInterface
+     */
+    protected function renderHtmlNotFoundOutput(ServerRequestInterface $request, ResponseInterface $response)
+    {
+        $homeUrl = (string)($request->getUri()->withPath('')->withQuery('')->withFragment(''));
+        return <<<END
+<html>
+    <head>
+        <title>Page Not Found</title>
+        <style>
+            body{
+                margin:0;
+                padding:30px;
+                font:12px/1.5 Helvetica,Arial,Verdana,sans-serif;
+            }
+            h1{
+                margin:0;
+                font-size:48px;
+                font-weight:normal;
+                line-height:48px;
+            }
+            strong{
+                display:inline-block;
+                width:65px;
+            }
+        </style>
+    </head>
+    <body>
+        <h1>Page Not Found</h1>
+        <p>
+            The page you are looking for could not be found. Check the address bar
+            to ensure your URL is spelled correctly. If all else fails, you can
+            visit our home page at the link below.
+        </p>
+        <a href='$homeUrl'>Visit the Home Page</a>
+    </body>
+</html>
+END;
+    }
+}