Merge pull request #34 from kalibora/support-redirect

Support redirect

src/Annotation/TwigRedirectPath.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * This file is part of the Madapaja.TwigModule package.
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ */
+namespace Madapaja\TwigModule\Annotation;
+
+use Ray\Di\Di\Qualifier;
+
+/**
+ * @Annotation
+ * @Target("METHOD")
+ * @Qualifier
+ */
+final class TwigRedirectPath
+{
+    public $value;
+}

src/TwigModule.php

@@ -10,6 +10,7 @@
 use Madapaja\TwigModule\Annotation\TwigLoader;
 use Madapaja\TwigModule\Annotation\TwigOptions;
 use Madapaja\TwigModule\Annotation\TwigPaths;
+use Madapaja\TwigModule\Annotation\TwigRedirectPath;
 use Ray\Di\AbstractModule;
 use Ray\Di\Scope;
 use Twig\Environment;
@@ -52,6 +53,7 @@ protected function configure()
         $this->bindTwigEnvironment();
         $this->bindTwigPaths();
         $this->bindTwigOptions();
+        $this->bindTwigRedirectPath();
     }
 
     private function bindRender()
@@ -116,6 +118,11 @@ private function bindTwigOptions()
         $this->bind()->annotatedWith(TwigOptions::class)->toProvider(OptionProvider::class);
     }
 
+    private function bindTwigRedirectPath()
+    {
+        $this->bind()->annotatedWith(TwigRedirectPath::class)->toInstance('/redirect/redirect.html.twig');
+    }
+
     private function isNotEmpty($var)
     {
         return \is_array($var) && ! empty($var);

src/TwigRenderer.php

@@ -9,6 +9,7 @@
 use BEAR\Resource\Code;
 use BEAR\Resource\RenderInterface;
 use BEAR\Resource\ResourceObject;
+use Madapaja\TwigModule\Annotation\TwigRedirectPath;
 use Ray\Aop\WeavedInterface;
 use Twig\Environment;
 use Twig\Error\LoaderError;
@@ -29,14 +30,23 @@ class TwigRenderer implements RenderInterface
      */
     public $twig;
 
+    /**
+     * @var string
+     */
+    private $redirectPage;
+
     /**
      * @var TemplateFinderInterface
      */
     private $templateFinder;
 
-    public function __construct(Environment $twig, TemplateFinderInterface $templateFinder = null)
+    /**
+     * @TwigRedirectPath("redirectPage")
+     */
+    public function __construct(Environment $twig, string $redirectPage, TemplateFinderInterface $templateFinder = null)
     {
         $this->twig = $twig;
+        $this->redirectPage = $redirectPage;
         $this->templateFinder = $templateFinder ?: new TemplateFinder;
     }
 
@@ -46,7 +56,14 @@ public function __construct(Environment $twig, TemplateFinderInterface $template
     public function render(ResourceObject $ro)
     {
         $this->setContentType($ro);
-        $ro->view = $this->isNoContent($ro) ? '' : $this->renderView($ro);
+
+        if ($this->isNoContent($ro)) {
+            $ro->view = '';
+        } elseif ($this->isRedirect($ro)) {
+            $ro->view = $this->renderRedirectView($ro);
+        } else {
+            $ro->view = $this->renderView($ro);
+        }
 
         return $ro->view;
     }
@@ -65,6 +82,13 @@ private function renderView(ResourceObject $ro)
         return $template ? $template->render($this->buildBody($ro)) : '';
     }
 
+    private function renderRedirectView(ResourceObject $ro)
+    {
+        $url = $ro->headers['Location'];
+
+        return $this->twig->render($this->redirectPage, ['url' => $url]);
+    }
+
     /**
      * @return null|\Twig\TemplateWrapper
      */
@@ -84,6 +108,17 @@ private function isNoContent(ResourceObject $ro) : bool
         return $ro->code === Code::NO_CONTENT || $ro->view === '';
     }
 
+    private function isRedirect(ResourceObject $ro) : bool
+    {
+        return \in_array($ro->code, [
+            Code::MOVED_PERMANENTLY,
+            Code::FOUND,
+            Code::SEE_OTHER,
+            Code::TEMPORARY_REDIRECT,
+            Code::PERMANENT_REDIRECT,
+        ], true) && isset($ro->headers['Location']);
+    }
+
     private function loadTemplate(ResourceObject $ro) : TemplateWrapper
     {
         $loader = $this->twig->getLoader();

tests/Fake/src/Resource/Page/Redirect.html.twig

@@ -0,0 +1 @@
+foo is {{ foo }}.

tests/Fake/src/Resource/Page/Redirect.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * This file is part of the Madapaja.TwigModule package.
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ */
+namespace Madapaja\TwigModule\Resource\Page;
+
+use BEAR\Resource\Code;
+use BEAR\Resource\ResourceObject;
+
+class Redirect extends ResourceObject
+{
+    public function onGet()
+    {
+        $this->body = [
+            'foo' => 'bar',
+        ];
+
+        return $this;
+    }
+
+    public function onPost()
+    {
+        $this->code = Code::FOUND;
+        $this->headers['Location'] = '/path/to/baz';
+
+        return $this;
+    }
+}

tests/Fake/src/Resource/redirect/redirect.html.twig

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <meta http-equiv="refresh" content="0;url={{ url }}" />
+    <title>Redirecting to {{ url }}</title>
+  </head>
+  <body>
+    Redirecting to <a href="{{ url }}">{{ url }}</a>.
+  </body>
+</html>

tests/FileLoaderTest.php

@@ -10,6 +10,7 @@
 use Madapaja\TwigModule\Resource\Page\Index;
 use Madapaja\TwigModule\Resource\Page\NoTemplate;
 use Madapaja\TwigModule\Resource\Page\Page;
+use Madapaja\TwigModule\Resource\Page\Redirect;
 use PHPUnit_Framework_TestCase;
 use Ray\Di\Injector;
 
@@ -122,4 +123,25 @@ public function testIndexTemplateWithoutPaths()
         $ro->onGet();
         $this->assertSame('Hello, BEAR.Sunday!', \trim((string) $ro));
     }
+
+    public function testNoRedirectOnGet()
+    {
+        $injector = $this->getInjector();
+        $ro = $injector->getInstance(Redirect::class);
+        $ro->onGet();
+
+        $this->assertSame(Code::OK, $ro->code);
+        $this->assertSame('foo is bar.', \trim((string) $ro));
+    }
+
+    public function testRedirectOnPost()
+    {
+        $injector = $this->getInjector();
+        $ro = $injector->getInstance(Redirect::class);
+        $ro->onPost();
+
+        $this->assertSame(Code::FOUND, $ro->code);
+        $this->assertSame('/path/to/baz', $ro->headers['Location']);
+        $this->assertRegexp('#^.*Redirecting to /path/to/baz.*$#s', \trim((string) $ro));
+    }
 }

var/templates/redirect/redirect.html.twig

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <meta http-equiv="refresh" content="0;url={{ url }}" />
+    <title>Redirecting to {{ url }}</title>
+  </head>
+  <body>
+    Redirecting to <a href="{{ url }}">{{ url }}</a>.
+  </body>
+</html>