added Check\GuzzleHttpService

Author: kbond

composer.json

@@ -20,12 +20,14 @@
     "require-dev": {
         "zendframework/zend-loader"  : "2.*",
         "sensiolabs/security-checker": "1.3.*@dev",
-        "symfony/yaml": "v2.3.11"
+        "symfony/yaml": "v2.3.11",
+        "guzzle/http"                : "3.*"
     },
     "suggest" : {
         "ext-bcmath" : "Required by Check\\CpuPerformance",
         "sensiolabs/security-checker": "Required by Check\\SecurityAdvisory",
-        "symfony/yaml": "Required by Check\\YamlFile"
+        "symfony/yaml": "Required by Check\\YamlFile",
+        "guzzle/http": "Required by Check\\GuzzleHttpService"
     },
     "extra": {
         "branch-alias": {

src/ZendDiagnostics/Check/GuzzleHttpService.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace ZendDiagnostics\Check;
+
+use Guzzle\Http\Client;
+use Guzzle\Http\ClientInterface;
+use ZendDiagnostics\Result\Failure;
+use ZendDiagnostics\Result\Success;
+
+class GuzzleHttpService extends AbstractCheck
+{
+    protected $url;
+    protected $headers;
+    protected $statusCode;
+    protected $content;
+    protected $guzzle;
+
+    /**
+     * @param string          $url        The absolute url to check
+     * @param array           $headers    An array of headers used to create the request
+     * @param array           $options    An array of guzzle options used to create the request
+     * @param int             $statusCode The response status code to check
+     * @param null            $content    The response content to check
+     * @param ClientInterface $guzzle     Instance of guzzle to use
+     */
+    public function __construct($url, array $headers = array(), array $options = array(), $statusCode = 200, $content = null, ClientInterface $guzzle = null)
+    {
+        $this->url = $url;
+        $this->headers = $headers;
+        $this->options = $options;
+        $this->statusCode = $statusCode;
+        $this->content = $content;
+
+        if (!$guzzle) {
+            $guzzle = new Client();
+        }
+
+        $this->guzzle = $guzzle;
+    }
+
+    /**
+     * @see ZendDiagnostics\CheckInterface::check()
+     */
+    public function check()
+    {
+        $response = $this->guzzle->get($this->url, $this->headers, $this->options)->send();
+
+        if ($this->statusCode !== $response->getStatusCode()) {
+            return new Failure("Status code {$this->statusCode} does not match response from {$this->url}");
+        }
+
+        if ($this->content && !strpos($response->getBody(true), $this->content)) {
+            return new Failure("Content {$this->content} not found in response from {$this->url}");
+        }
+
+        return new Success();
+    }
+}