Merge pull request #14 from halkyon/json-output

Output check result and details as JSON if requested

code/DevHealthController.php

@@ -12,4 +12,4 @@ class DevHealthController extends Controller {
 		$e->setErrorCode(404);
 		return $e;
 	}
-}
+}

code/EnvironmentCheckSuite.php

@@ -192,6 +192,22 @@ class EnvironmentCheckSuiteResult extends ViewableData {
 		return $this->details;
 	}
 
+	/**
+	 * Convert the final result status and details to JSON.
+	 * @return string
+	 */
+	function toJSON() {
+		$result = array(
+			'Status' => $this->Status(),
+			'ShouldPass' => $this->ShouldPass(),
+			'Checks' => array()
+		);
+		foreach($this->details as $detail) {
+			$result['Checks'][] = $detail->toMap();
+		}
+		return json_encode($result);
+	}
+
 	/**
 	 * Return a text version of a status code
 	 */

code/EnvironmentChecker.php

@@ -88,11 +88,11 @@ class EnvironmentChecker extends RequestHandler {
 	function index() {
 		$response = new SS_HTTPResponse;
 		$result = EnvironmentCheckSuite::inst($this->checkSuiteName)->run();
-		
+
 		if(!$result->ShouldPass()) {
 			$response->setStatusCode($this->errorCode);
 		}
-		
+
 		$resultText = $result->customise(array(
 			"URL" => Director::absoluteBaseURL(),
 			"Title" => $this->title,
@@ -105,6 +105,16 @@ class EnvironmentChecker extends RequestHandler {
 			$email->send();
 		}
 
+		// output the result as JSON if requested
+		if(
+			$this->getRequest()->getExtension() == 'json'
+			|| strpos($this->getRequest()->getHeader('Accept'), 'application/json') !== false
+		) {
+			$response->setBody($result->toJSON());
+			$response->addHeader('Content-Type', 'application/json');
+			return $response;
+		}
+
 		$response->setBody($resultText);
 		
 		return $response;