PSR-15

.travis.yml

@@ -1,19 +1,18 @@
 language: php
 
-matrix:
-  fast_finish: true
-  include:
-    - php: 5.5
-    - php: 5.6
-    - php: 7
-    - php: hhvm
-  allow_failures:
-    - php: 7
-    - php: hhvm
+php:
+  - 5.6
+  - 7.0
+  - 7.1
 
-install:
-  - travis_retry composer install --no-interaction --ignore-platform-reqs --prefer-source
-  - composer info -i
+env:
+  - DEPS=lowest
+  - DEPS=latest
+
+before_script:
+  - phpenv config-rm xdebug.ini
+  - if [[ $DEPS == 'lowest' ]]; then composer update --prefer-stable --no-interaction --prefer-lowest ; fi
+  - if [[ $DEPS == 'latest' ]]; then composer update --prefer-stable --no-interaction ; fi
 
 script:
   - ./vendor/bin/phpunit

README.md

@@ -1,21 +1,17 @@
-# block-robots middleware [![Build Status](https://travis-ci.org/php-middleware/block-robots.svg)](https://travis-ci.org/php-middleware/block-robots)
-Middleware to avoid search engine indexing
+# block-robots middleware [![Build Status](https://travis-ci.org/php-middleware/block-robots.svg?branch=master)](https://travis-ci.org/php-middleware/block-robots)
+PSR-15 middleware to avoid search engine indexing with PSR-7
 
 This middleware provide framework-agnostic possibility to preventing your site from being indexed.
 
 ## How it works?
 
 * Add `X-Robots-Tag` header with `noindex, nofollow` value.
-* Add `robots.txt` "file" with `Disallow: /` body
+* Add `robots.txt` "file" with `User-Agent: * Disallow: /` body
 
 ## Installation
 
-```json
-{
-    "require": {
-        "php-middleware/block-robots": "^1.0.0"
-    }
-}
+```bash
+composer require php-middleware/block-robots
 ```
 
 ```php

composer.json

@@ -1,20 +1,23 @@
 {
     "name": "php-middleware/block-robots",
-    "description": "Middleware to avoid search engine indexing with PSR-7",
+    "description": "PSR-15 middleware to avoid search engine indexing with PSR-7",
     "type": "library",
     "keywords": [
         "middleware",
         "psr",
         "psr-7",
+        "psr-15",
         "seo",
         "robots"
     ],
     "require": {
-        "php": ">=5.5",
-        "psr/http-message": "^1.0"
+        "php": ">=5.6",
+        "psr/http-message": "^1.0",
+        "php-middleware/double-pass-compatibility": "^1.0",
+        "http-interop/http-middleware": "^0.4.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.8.6",
+        "phpunit/phpunit": "^5.7 || ^6.1",
         "zendframework/zend-diactoros": "^1.1.3"
     },
     "autoload": {

src/BlockRobotsMiddleware.php

@@ -2,25 +2,45 @@
 
 namespace PhpMiddleware\BlockRobots;
 
+use Interop\Http\ServerMiddleware\DelegateInterface;
+use Interop\Http\ServerMiddleware\MiddlewareInterface;
+use PhpMiddleware\DoublePassCompatibilityTrait;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Zend\Diactoros\Response;
 
-class BlockRobotsMiddleware
+class BlockRobotsMiddleware implements MiddlewareInterface
 {
+    use DoublePassCompatibilityTrait;
+
     const ROBOTS_HEADER = 'X-Robots-Tag';
 
-    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $out = null)
+    public function process(ServerRequestInterface $request, DelegateInterface $delegate)
     {
-        if ($request->getUri()->getPath() === '/robots.txt') {
-            $newReponse = new Response('php://memory', 200, ['Content-Type' => 'text/plain']);
-            $newReponse->getBody()->write("User-Agent: *\nDisallow: /");
-
-            return $newReponse;
+        if ($this->isRobotsTxt($request)) {
+            return $this->createRobotsTxtResponse();
         }
-        /* @var $out ResponseInterface */
-        $response = $out === null ? $response : $out($request, $response);
 
+        $response = $delegate->process($request);
+
+        return $this->attachRobotsHeaderTo($response);
+    }
+
+    private function createRobotsTxtResponse()
+    {
+        $response = new Response('php://memory', 200, ['Content-Type' => 'text/plain']);
+        $response->getBody()->write("User-Agent: *\nDisallow: /");
+
+        return $response;
+    }
+
+    private function isRobotsTxt(ServerRequestInterface $request)
+    {
+        return $request->getUri()->getPath() === '/robots.txt';
+    }
+
+    private function attachRobotsHeaderTo(ResponseInterface $response)
+    {
         return $response->withHeader(self::ROBOTS_HEADER, 'noindex, nofollow');
     }
 }

test/BlockRobotsMiddlewareTest.php

@@ -3,12 +3,13 @@
 namespace PhpMiddlewareTest\BlockRobots;
 
 use PhpMiddleware\BlockRobots\BlockRobotsMiddleware;
+use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\ResponseInterface;
 use Zend\Diactoros\Response;
 use Zend\Diactoros\ServerRequest;
 use Zend\Diactoros\Uri;
 
-class BlockRobotsMiddlewareTest extends \PHPUnit_Framework_TestCase
+class BlockRobotsMiddlewareTest extends TestCase
 {
     protected $middleware;