Add system config htaccess.IgnoreFrontController for prettyURLs w/o mod_env

Added the system config which sets all conditions to true that query the
FrontControllerActive mod_env variable.

Signed-off-by: Felix A. Epp <work@felixepp.de>

config/config.sample.php

@@ -9,7 +9,7 @@
  * consider important for your instance to your working ``config.php``, and
  * apply configuration options that are pertinent for your instance.
  *
- * This file is used to generate the configuration documentation. 
+ * This file is used to generate the configuration documentation.
  * Please consider following requirements of the current parser:
  *  * all comments need to start with `/**` and end with ` *\/` - each on their
  *    own line
@@ -407,6 +407,17 @@ $CONFIG = array(
  */
 'htaccess.RewriteBase' => '/',
 
+/**
+ * For server setups, that don't have `mod_env` enabled or restricted (e.g. suEXEC)
+ * this parameter has to be set to true and will assume mod_rewrite.
+ *
+ * Please check, if `mod_rewrite` is active and functional before setting this
+ * parameter and you updated your .htaccess with `occ maintenance:update:htaccess`.
+ * Otherwise your nextcloud installation might not be reachable anymore.
+ * For example, try accessing resources by leaving out `index.php` in the URL.
+ */
+'htaccess.IgnoreFrontController' => false,
+
 /**
  * The URL of your proxy server, for example ``proxy.example.com:8081``.
  */
@@ -852,9 +863,9 @@ $CONFIG = array(
 /**
  * Enable maintenance mode to disable Nextcloud
  *
- * If you want to prevent users from logging in to Nextcloud before you start 
- * doing some maintenance work, you need to set the value of the maintenance 
- * parameter to true. Please keep in mind that users who are already logged-in 
+ * If you want to prevent users from logging in to Nextcloud before you start
+ * doing some maintenance work, you need to set the value of the maintenance
+ * parameter to true. Please keep in mind that users who are already logged-in
  * are kicked out of Nextcloud instantly.
  */
 'maintenance' => false,
@@ -1172,7 +1183,7 @@ $CONFIG = array(
 
 /**
  * Specifies how often the local filesystem (the Nextcloud data/ directory, and
- * NFS mounts in data/) is checked for changes made outside Nextcloud. This 
+ * NFS mounts in data/) is checked for changes made outside Nextcloud. This
  * does not apply to external storages.
  *
  * 0 -> Never check the filesystem for outside changes, provides a performance
@@ -1212,7 +1223,7 @@ $CONFIG = array(
 
 /**
  * List of trusted proxy servers
- * 
+ *
  * If you configure these also consider setting `forwarded_for_headers` which
  * otherwise defaults to `HTTP_X_FORWARDED_FOR` (the `X-Forwarded-For` header).
  */

lib/private/Route/Router.php

@@ -4,6 +4,7 @@
  *
  * @author Bart Visscher <bartv@thisnet.nl>
  * @author Bernhard Posselt <dev@bernhard-posselt.com>
+ * @author Felix Anand Epp <work@felixepp.de>
  * @author Joas Schilling <coding@schilljs.com>
  * @author Jörn Friedrich Dreyer <jfd@butonic.de>
  * @author Lukas Reschke <lukas@statuscode.ch>
@@ -71,7 +72,7 @@ class Router implements IRouter {
 	public function __construct(ILogger $logger) {
 		$this->logger = $logger;
 		$baseUrl = \OC::$WEBROOT;
-		if(!(getenv('front_controller_active') === 'true')) {
+		if(!(\OC::$server->getConfig()->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true')) {
 			$baseUrl = \OC::$server->getURLGenerator()->linkTo('', 'index.php');
 		}
 		if (!\OC::$CLI) {

lib/private/Template/JSConfigHelper.php

@@ -189,7 +189,7 @@ class JSConfigHelper {
 				'versionstring'		=> \OC_Util::getVersionString(),
 				'enable_avatars'	=> $this->config->getSystemValue('enable_avatars', true) === true,
 				'lost_password_link'=> $this->config->getSystemValue('lost_password_link', null),
-				'modRewriteWorking'	=> (getenv('front_controller_active') === 'true'),
+				'modRewriteWorking'	=> (\OC::$server->getConfig()->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true'),
 			]),
 			"oc_appconfig" => json_encode([
 				'core' => [

lib/private/URLGenerator.php

@@ -3,6 +3,7 @@
  * @copyright Copyright (c) 2016, ownCloud, Inc.
  *
  * @author Bart Visscher <bartv@thisnet.nl>
+ * @author Felix Anand Epp <work@felixepp.de>
  * @author Joas Schilling <coding@schilljs.com>
  * @author Jörn Friedrich Dreyer <jfd@butonic.de>
  * @author Lukas Reschke <lukas@statuscode.ch>
@@ -93,7 +94,7 @@ class URLGenerator implements IURLGenerator {
 	 * Returns a url to the given app and file.
 	 */
 	public function linkTo( $app, $file, $args = array() ) {
-		$frontControllerActive = (getenv('front_controller_active') === 'true');
+		$frontControllerActive = ($this->config->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true');
 
 		if( $app != '' ) {
 			$app_path = \OC_App::getAppPath($app);

lib/private/legacy/util.php

@@ -14,6 +14,7 @@
  * @author Christoph Wurst <christoph@owncloud.com>
  * @author Clark Tomlinson <fallen013@gmail.com>
  * @author cmeh <cmeh@users.noreply.github.com>
+ * @author Felix Anand Epp <work@felixepp.de>
  * @author Florin Peter <github@florin-peter.de>
  * @author Frank Karlitschek <frank@karlitschek.de>
  * @author Georg Ehrke <georg@owncloud.com>
@@ -524,7 +525,7 @@ class OC_Util {
 	 *
 	 * @param string $application application id
 	 * @param string $languageCode language code, defaults to the current language
-	 * @param bool $prepend prepend the Script to the beginning of the list 
+	 * @param bool $prepend prepend the Script to the beginning of the list
 	 */
 	public static function addTranslations($application, $languageCode = null, $prepend = false) {
 		if (is_null($languageCode)) {
@@ -569,7 +570,7 @@ class OC_Util {
 	 *
 	 * @param string $application application id
 	 * @param bool $prepend prepend the file to the beginning of the list
-	 * @param string $path 
+	 * @param string $path
 	 * @param string $type (script or style)
 	 * @return void
 	 */
@@ -1076,7 +1077,7 @@ class OC_Util {
 					}
 				}
 
-				if(getenv('front_controller_active') === 'true') {
+				if(\OC::$server->getConfig()->getSystemValue('htaccess.IgnoreFrontController', false) === true || getenv('front_controller_active') === 'true') {
 					$location = $urlGenerator->getAbsoluteURL('/apps/' . $appId . '/');
 				} else {
 					$location = $urlGenerator->getAbsoluteURL('/index.php/apps/' . $appId . '/');

tests/lib/UtilTest.php

@@ -350,6 +350,7 @@ class UtilTest extends \Test\TestCase {
 
 	public function testGetDefaultPageUrlWithRedirectUrlWithoutFrontController() {
 		putenv('front_controller_active=false');
+		\OC::$server->getConfig()->deleteSystemValue('htaccess.IgnoreFrontController');
 
 		$_REQUEST['redirect_url'] = 'myRedirectUrl.com';
 		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/myRedirectUrl.com', OC_Util::getDefaultPageUrl());
@@ -357,6 +358,7 @@ class UtilTest extends \Test\TestCase {
 
 	public function testGetDefaultPageUrlWithRedirectUrlRedirectBypassWithoutFrontController() {
 		putenv('front_controller_active=false');
+		\OC::$server->getConfig()->deleteSystemValue('htaccess.IgnoreFrontController');
 
 		$_REQUEST['redirect_url'] = 'myRedirectUrl.com@foo.com:a';
 		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/index.php/apps/files/', OC_Util::getDefaultPageUrl());
@@ -368,6 +370,14 @@ class UtilTest extends \Test\TestCase {
 		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/apps/files/', OC_Util::getDefaultPageUrl());
 	}
 
+	public function testGetDefaultPageUrlWithRedirectUrlWithIgnoreFrontController() {
+		putenv('front_controller_active=false');
+		\OC::$server->getConfig()->setSystemValue('htaccess.IgnoreFrontController', true);
+
+		$_REQUEST['redirect_url'] = 'myRedirectUrl.com@foo.com:a';
+		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/apps/files/', OC_Util::getDefaultPageUrl());
+	}
+
 	/**
 	 * Test needUpgrade() when the core version is increased
 	 */