[stable25] Change X-Robots-Tag header from "none" to "noindex, nofollow"

.htaccess

@@ -31,7 +31,7 @@
     Header always set X-Permitted-Cross-Domain-Policies "none"
 
     Header onsuccess unset X-Robots-Tag
-    Header always set X-Robots-Tag "none"
+    Header always set X-Robots-Tag "noindex, nofollow"
 
     Header onsuccess unset X-XSS-Protection
     Header always set X-XSS-Protection "1; mode=block"

build/integration/features/carddav.feature

@@ -46,7 +46,7 @@ Feature: carddav
         |X-Content-Type-Options |nosniff|
         |X-Frame-Options|SAMEORIGIN|
         |X-Permitted-Cross-Domain-Policies|none|
-        |X-Robots-Tag|none|
+        |X-Robots-Tag|noindex, nofollow|
         |X-XSS-Protection|1; mode=block|
 
   Scenario: Exporting the picture of ones own contact
@@ -60,5 +60,5 @@ Feature: carddav
       |X-Content-Type-Options |nosniff|
       |X-Frame-Options|SAMEORIGIN|
       |X-Permitted-Cross-Domain-Policies|none|
-      |X-Robots-Tag|none|
+      |X-Robots-Tag|noindex, nofollow|
       |X-XSS-Protection|1; mode=block|

build/integration/features/dav-v2.feature

@@ -27,7 +27,7 @@ Feature: dav-v2
 			|X-Content-Type-Options |nosniff|
 			|X-Frame-Options|SAMEORIGIN|
 			|X-Permitted-Cross-Domain-Policies|none|
-			|X-Robots-Tag|none|
+			|X-Robots-Tag|noindex, nofollow|
 			|X-XSS-Protection|1; mode=block|
 		And Downloaded content should start with "Welcome to your Nextcloud account!"
 

build/integration/features/webdav-related.feature

@@ -53,7 +53,7 @@ Feature: webdav-related
 		And User "user0" moves file "/textfile0.txt" to "/testshare/textfile0.txt"
 		And the HTTP status code should be "403"
 		When Downloading file "/testshare/textfile0.txt"
- 		Then the HTTP status code should be "404"
+		Then the HTTP status code should be "404"
 
 	Scenario: Moving a file to overwrite a file in a folder with no permissions
 		Given using old dav path
@@ -251,7 +251,7 @@ Feature: webdav-related
 			|X-Content-Type-Options |nosniff|
 			|X-Frame-Options|SAMEORIGIN|
 			|X-Permitted-Cross-Domain-Policies|none|
-			|X-Robots-Tag|none|
+			|X-Robots-Tag|noindex, nofollow|
 			|X-XSS-Protection|1; mode=block|
 		And Downloaded content should start with "Welcome to your Nextcloud account!"
 

core/js/setupchecks.js

@@ -628,13 +628,13 @@
 			if (xhr.status === 200) {
 				var securityHeaders = {
 					'X-Content-Type-Options': ['nosniff'],
-					'X-Robots-Tag': ['none'],
+					'X-Robots-Tag': ['noindex, nofollow'],
 					'X-Frame-Options': ['SAMEORIGIN', 'DENY'],
 					'X-Permitted-Cross-Domain-Policies': ['none'],
 				};
 				for (var header in securityHeaders) {
 					var option = securityHeaders[header][0];
-					if(!xhr.getResponseHeader(header) || xhr.getResponseHeader(header).toLowerCase() !== option.toLowerCase()) {
+					if(!xhr.getResponseHeader(header) || xhr.getResponseHeader(header).replace(/, /, ',').toLowerCase() !== option.replace(/, /, ',').toLowerCase()) {
 						var msg = t('core', 'The "{header}" HTTP header is not set to "{expected}". This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.', {header: header, expected: option});
 						if(xhr.getResponseHeader(header) && securityHeaders[header].length > 1 && xhr.getResponseHeader(header).toLowerCase() === securityHeaders[header][1].toLowerCase()) {
 							msg = t('core', 'The "{header}" HTTP header is not set to "{expected}". Some features might not work correctly, as it is recommended to adjust this setting accordingly.', {header: header, expected: option});

core/js/tests/specs/setupchecksSpec.js

@@ -1569,7 +1569,7 @@ describe('OC.SetupChecks tests', function() {
 					msg: 'The "X-Content-Type-Options" HTTP header is not set to "nosniff". This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.',
 					type: OC.SetupChecks.MESSAGE_TYPE_WARNING
 				}, {
-					msg: 'The "X-Robots-Tag" HTTP header is not set to "none". This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.',
+					msg: 'The "X-Robots-Tag" HTTP header is not set to "noindex, nofollow". This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.',
 					type: OC.SetupChecks.MESSAGE_TYPE_WARNING
 				}, {
 					msg: 'The "X-Frame-Options" HTTP header is not set to "SAMEORIGIN". This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.',
@@ -1596,7 +1596,7 @@ describe('OC.SetupChecks tests', function() {
 			suite.server.requests[0].respond(
 				200,
 				{
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'Strict-Transport-Security': 'max-age=15768000;preload',
 					'X-Permitted-Cross-Domain-Policies': 'none',
@@ -1627,7 +1627,7 @@ describe('OC.SetupChecks tests', function() {
 				{
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-Permitted-Cross-Domain-Policies': 'none',
@@ -1641,6 +1641,49 @@ describe('OC.SetupChecks tests', function() {
 			});
 		});
 
+		describe('check X-Robots-Tag header', function() {
+			it('should return no message if X-Robots-Tag is set to noindex,nofollow without space', function(done) {
+				protocolStub.returns('https');
+				var result = OC.SetupChecks.checkGeneric();
+				suite.server.requests[0].respond(200, {
+					'Strict-Transport-Security': 'max-age=15768000',
+					'X-XSS-Protection': '1; mode=block',
+					'X-Content-Type-Options': 'nosniff',
+					'X-Robots-Tag': 'noindex,nofollow',
+					'X-Frame-Options': 'SAMEORIGIN',
+					'X-Permitted-Cross-Domain-Policies': 'none',
+					'Referrer-Policy': 'no-referrer',
+				});
+				result.done(function( data, s, x ){
+					expect(data).toEqual([]);
+					done();
+				});
+			});
+
+			it('should return a message if X-Robots-Tag is set to none', function(done) {
+				protocolStub.returns('https');
+				var result = OC.SetupChecks.checkGeneric();
+				suite.server.requests[0].respond(200, {
+					'Strict-Transport-Security': 'max-age=15768000',
+					'X-XSS-Protection': '1; mode=block',
+					'X-Content-Type-Options': 'nosniff',
+					'X-Robots-Tag': 'none',
+					'X-Frame-Options': 'SAMEORIGIN',
+					'X-Permitted-Cross-Domain-Policies': 'none',
+					'Referrer-Policy': 'no-referrer',
+				});
+				result.done(function( data, s, x ){
+					expect(data).toEqual([
+						{
+							msg: 'The "X-Robots-Tag" HTTP header is not set to "noindex, nofollow". This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.',
+							type: OC.SetupChecks.MESSAGE_TYPE_WARNING
+						}
+					]);
+					done();
+				});
+			});
+		});
+
 		describe('check X-XSS-Protection header', function() {
 			it('should return no message if X-XSS-Protection is set to 1; mode=block; report=https://example.com', function(done) {
 				protocolStub.returns('https');
@@ -1650,7 +1693,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block; report=https://example.com',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'no-referrer',
@@ -1670,7 +1713,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'no-referrer',
@@ -1690,7 +1733,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'no-referrer',
@@ -1715,7 +1758,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '0',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'no-referrer',
@@ -1742,7 +1785,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'no-referrer',
@@ -1762,7 +1805,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'no-referrer-when-downgrade',
@@ -1782,7 +1825,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'strict-origin',
@@ -1802,7 +1845,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'strict-origin-when-cross-origin',
@@ -1822,7 +1865,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'same-origin',
@@ -1842,7 +1885,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'origin',
@@ -1867,7 +1910,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'origin-when-cross-origin',
@@ -1892,7 +1935,7 @@ describe('OC.SetupChecks tests', function() {
 					'Strict-Transport-Security': 'max-age=15768000',
 					'X-XSS-Protection': '1; mode=block',
 					'X-Content-Type-Options': 'nosniff',
-					'X-Robots-Tag': 'none',
+					'X-Robots-Tag': 'noindex, nofollow',
 					'X-Frame-Options': 'SAMEORIGIN',
 					'X-Permitted-Cross-Domain-Policies': 'none',
 					'Referrer-Policy': 'unsafe-url',
@@ -1919,7 +1962,7 @@ describe('OC.SetupChecks tests', function() {
 			{
 				'X-XSS-Protection': '1; mode=block',
 				'X-Content-Type-Options': 'nosniff',
-				'X-Robots-Tag': 'none',
+				'X-Robots-Tag': 'noindex, nofollow',
 				'X-Frame-Options': 'SAMEORIGIN',
 				'X-Permitted-Cross-Domain-Policies': 'none',
 				'Referrer-Policy': 'no-referrer',
@@ -1965,7 +2008,7 @@ describe('OC.SetupChecks tests', function() {
 			{
 				'X-XSS-Protection': '1; mode=block',
 				'X-Content-Type-Options': 'nosniff',
-				'X-Robots-Tag': 'none',
+				'X-Robots-Tag': 'noindex, nofollow',
 				'X-Frame-Options': 'SAMEORIGIN',
 				'X-Permitted-Cross-Domain-Policies': 'none',
 				'Referrer-Policy': 'no-referrer',
@@ -1990,7 +2033,7 @@ describe('OC.SetupChecks tests', function() {
 				'Strict-Transport-Security': 'max-age=15551999',
 				'X-XSS-Protection': '1; mode=block',
 				'X-Content-Type-Options': 'nosniff',
-				'X-Robots-Tag': 'none',
+				'X-Robots-Tag': 'noindex, nofollow',
 				'X-Frame-Options': 'SAMEORIGIN',
 				'X-Permitted-Cross-Domain-Policies': 'none',
 				'Referrer-Policy': 'no-referrer',
@@ -2015,7 +2058,7 @@ describe('OC.SetupChecks tests', function() {
 				'Strict-Transport-Security': 'iAmABogusHeader342',
 				'X-XSS-Protection': '1; mode=block',
 				'X-Content-Type-Options': 'nosniff',
-				'X-Robots-Tag': 'none',
+				'X-Robots-Tag': 'noindex, nofollow',
 				'X-Frame-Options': 'SAMEORIGIN',
 				'X-Permitted-Cross-Domain-Policies': 'none',
 				'Referrer-Policy': 'no-referrer',
@@ -2039,7 +2082,7 @@ describe('OC.SetupChecks tests', function() {
 			'Strict-Transport-Security': 'max-age=15768000',
 			'X-XSS-Protection': '1; mode=block',
 			'X-Content-Type-Options': 'nosniff',
-			'X-Robots-Tag': 'none',
+			'X-Robots-Tag': 'noindex, nofollow',
 			'X-Frame-Options': 'SAMEORIGIN',
 			'X-Permitted-Cross-Domain-Policies': 'none',
 			'Referrer-Policy': 'no-referrer',
@@ -2059,7 +2102,7 @@ describe('OC.SetupChecks tests', function() {
 			'Strict-Transport-Security': 'max-age=99999999',
 			'X-XSS-Protection': '1; mode=block',
 			'X-Content-Type-Options': 'nosniff',
-			'X-Robots-Tag': 'none',
+			'X-Robots-Tag': 'noindex, nofollow',
 			'X-Frame-Options': 'SAMEORIGIN',
 			'X-Permitted-Cross-Domain-Policies': 'none',
 			'Referrer-Policy': 'no-referrer',
@@ -2079,7 +2122,7 @@ describe('OC.SetupChecks tests', function() {
 			'Strict-Transport-Security': 'max-age=99999999; includeSubDomains',
 			'X-XSS-Protection': '1; mode=block',
 			'X-Content-Type-Options': 'nosniff',
-			'X-Robots-Tag': 'none',
+			'X-Robots-Tag': 'noindex, nofollow',
 			'X-Frame-Options': 'SAMEORIGIN',
 			'X-Permitted-Cross-Domain-Policies': 'none',
 			'Referrer-Policy': 'no-referrer',
@@ -2099,7 +2142,7 @@ describe('OC.SetupChecks tests', function() {
 			'Strict-Transport-Security': 'max-age=99999999; preload; includeSubDomains',
 			'X-XSS-Protection': '1; mode=block',
 			'X-Content-Type-Options': 'nosniff',
-			'X-Robots-Tag': 'none',
+			'X-Robots-Tag': 'noindex, nofollow',
 			'X-Frame-Options': 'SAMEORIGIN',
 			'X-Permitted-Cross-Domain-Policies': 'none',
 			'Referrer-Policy': 'no-referrer',

lib/private/legacy/OC_Response.php

@@ -99,7 +99,7 @@ public static function addSecurityHeaders() {
 			header('X-Content-Type-Options: nosniff'); // Disable sniffing the content type for IE
 			header('X-Frame-Options: SAMEORIGIN'); // Disallow iFraming from other domains
 			header('X-Permitted-Cross-Domain-Policies: none'); // https://www.adobe.com/devnet/adobe-media-server/articles/cross-domain-xml-for-streaming.html
-			header('X-Robots-Tag: none'); // https://developers.google.com/webmasters/control-crawl-index/docs/robots_meta_tag
+			header('X-Robots-Tag: noindex, nofollow'); // https://developers.google.com/webmasters/control-crawl-index/docs/robots_meta_tag
 			header('X-XSS-Protection: 1; mode=block'); // Enforce browser based XSS filters
 		}
 	}

lib/public/AppFramework/Http/Response.php

@@ -258,7 +258,7 @@ public function getHeaders() {
 
 		$this->headers['Content-Security-Policy'] = $this->getContentSecurityPolicy()->buildPolicy();
 		$this->headers['Feature-Policy'] = $this->getFeaturePolicy()->buildPolicy();
-		$this->headers['X-Robots-Tag'] = 'none';
+		$this->headers['X-Robots-Tag'] = 'noindex, nofollow';
 
 		if ($this->ETag) {
 			$mergeWith['ETag'] = '"' . $this->ETag . '"';

tests/data/setUploadLimit/htaccess

@@ -11,7 +11,7 @@
     # Add security and privacy related headers
     Header set X-Content-Type-Options "nosniff"
     Header set X-XSS-Protection "1; mode=block"
-    Header set X-Robots-Tag "none"
+    Header set X-Robots-Tag "noindex, nofollow"
     Header set X-Frame-Options "SAMEORIGIN"
     SetEnv modHeadersAvailable true
   </IfModule>

tests/lib/AppFramework/Controller/ControllerTest.php

@@ -117,7 +117,7 @@ public function testFormatDataResponseJSON() {
 			'Content-Security-Policy' => "default-src 'none';base-uri 'none';manifest-src 'self';frame-ancestors 'none'",
 			'Feature-Policy' => "autoplay 'none';camera 'none';fullscreen 'none';geolocation 'none';microphone 'none';payment 'none'",
 			'X-Request-Id' => $this->request->getId(),
-			'X-Robots-Tag' => 'none',
+			'X-Robots-Tag' => 'noindex, nofollow',
 		];
 
 		$response = $this->controller->customDataResponse(['hi']);

tests/lib/AppFramework/Http/DataResponseTest.php

@@ -68,7 +68,7 @@ public function testConstructorAllowsToSetHeaders() {
 			'Cache-Control' => 'no-cache, no-store, must-revalidate',
 			'Content-Security-Policy' => "default-src 'none';base-uri 'none';manifest-src 'self';frame-ancestors 'none'",
 			'Feature-Policy' => "autoplay 'none';camera 'none';fullscreen 'none';geolocation 'none';microphone 'none';payment 'none'",
-			'X-Robots-Tag' => 'none',
+			'X-Robots-Tag' => 'noindex, nofollow',
 			'X-Request-Id' => \OC::$server->get(IRequest::class)->getId(),
 		];
 		$expectedHeaders = array_merge($expectedHeaders, $headers);

tests/lib/AppFramework/Http/ResponseTest.php

@@ -52,7 +52,7 @@ public function testSetHeaders() {
 			'Last-Modified' => 1,
 			'ETag' => 3,
 			'Something-Else' => 'hi',
-			'X-Robots-Tag' => 'none',
+			'X-Robots-Tag' => 'noindex, nofollow',
 		];
 
 		$this->childResponse->setHeaders($expected);