adding X-Robots-Tag to all responses of ownCloud + move addSecurityHeaders() to OC_Response, which seems to be a more reasonable place

lib/base.php

@@ -212,34 +212,6 @@ class OC {
 		}
 	}
 
-	/*
-	* This function adds some security related headers to all requests served via base.php
-	* The implementation of this function has to happen here to ensure that all third-party 
-	* components (e.g. SabreDAV) also benefit from this headers.
-	*/
-	public static function addSecurityHeaders() {
-		header('X-XSS-Protection: 1; mode=block'); // Enforce browser based XSS filters
-		header('X-Content-Type-Options: nosniff'); // Disable sniffing the content type for IE
-
-		// iFrame Restriction Policy
-		$xFramePolicy = OC_Config::getValue('xframe_restriction', true);
-		if($xFramePolicy) {
-			header('X-Frame-Options: Sameorigin'); // Disallow iFraming from other domains
-		}
-
-		// Content Security Policy
-		// If you change the standard policy, please also change it in config.sample.php
-		$policy = OC_Config::getValue('custom_csp_policy',
-			'default-src \'self\'; '
-			.'script-src \'self\' \'unsafe-eval\'; '
-			.'style-src \'self\' \'unsafe-inline\'; '
-			.'frame-src *; '
-			.'img-src *; '
-			.'font-src \'self\' data:; '
-			.'media-src *');
-		header('Content-Security-Policy:'.$policy);
-	}
-
 	public static function checkSSL() {
 		// redirect to https site if configured
 		if (OC_Config::getValue("forcessl", false)) {
@@ -545,7 +517,7 @@ class OC {
 		self::checkConfig();
 		self::checkInstalled();
 		self::checkSSL();
-		self::addSecurityHeaders();
+		OC_Response::addSecurityHeaders();
 
 		$errors = OC_Util::checkServer();
 		if (count($errors) > 0) {

lib/private/response.php

@@ -186,4 +186,36 @@ class OC_Response {
 			self::setStatus(self::STATUS_NOT_FOUND);
 		}
 	}
+
+	/*
+	 * This function adds some security related headers to all requests served via base.php
+	 * The implementation of this function has to happen here to ensure that all third-party
+	 * components (e.g. SabreDAV) also benefit from this headers.
+	 */
+	public static function addSecurityHeaders() {
+		header('X-XSS-Protection: 1; mode=block'); // Enforce browser based XSS filters
+		header('X-Content-Type-Options: nosniff'); // Disable sniffing the content type for IE
+
+		// iFrame Restriction Policy
+		$xFramePolicy = OC_Config::getValue('xframe_restriction', true);
+		if ($xFramePolicy) {
+			header('X-Frame-Options: Sameorigin'); // Disallow iFraming from other domains
+		}
+
+		// Content Security Policy
+		// If you change the standard policy, please also change it in config.sample.php
+		$policy = OC_Config::getValue('custom_csp_policy',
+			'default-src \'self\'; '
+			. 'script-src \'self\' \'unsafe-eval\'; '
+			. 'style-src \'self\' \'unsafe-inline\'; '
+			. 'frame-src *; '
+			. 'img-src *; '
+			. 'font-src \'self\' data:; '
+			. 'media-src *');
+		header('Content-Security-Policy:' . $policy);
+
+		// https://developers.google.com/webmasters/control-crawl-index/docs/robots_meta_tag
+		header('X-Robots-Tag: none');
+	}
+
 }