security hardening in remoteStorage app

apps/remoteStorage/WebDAV.php

@@ -69,7 +69,10 @@ if(count($pathParts) >= 3 && $pathParts[0] == '') {
 	$server->setBaseUri(OC::$WEBROOT."/apps/remoteStorage/WebDAV.php/$ownCloudUser");
 
 	// Auth backend
-	$authBackend = new OC_Connector_Sabre_Auth_ro_oauth(OC_remoteStorage::getValidTokens($ownCloudUser, $category));
+	$authBackend = new OC_Connector_Sabre_Auth_ro_oauth(
+      OC_remoteStorage::getValidTokens($ownCloudUser, $category),
+      $category
+      );
 
 	$authPlugin = new Sabre_DAV_Auth_Plugin($authBackend,'ownCloud');//should use $validTokens here
 	$server->addPlugin($authPlugin);
@@ -82,5 +85,6 @@ if(count($pathParts) >= 3 && $pathParts[0] == '') {
 	// And off we go!
 	$server->exec();
 } else {
-	die('not the right address format '.var_export($pathParts, true));
+	//die('not the right address format '.var_export($pathParts, true));
+	die('not the right address format');
 }

apps/remoteStorage/auth.php

@@ -96,5 +96,6 @@ if(count($pathParts) == 2 && $pathParts[0] == '') {
 			.'<form method="POST"><input name="allow" type="submit" value="Click here"></form>');
 	}
 } else {
-	die('please use auth.php/username?params. '.var_export($pathParts, true));
+	//die('please use auth.php/username?params. '.var_export($pathParts, true));
+	die('please use auth.php/username?params.');
 }

apps/remoteStorage/oauth_ro_auth.php

@@ -16,9 +16,10 @@
 
 class OC_Connector_Sabre_Auth_ro_oauth extends Sabre_DAV_Auth_Backend_AbstractBasic {
 	private $validTokens;
-
-	public function __construct($validTokensArg) {
+  private $category;
+	public function __construct($validTokensArg, $categoryArg) {
 		$this->validTokens = $validTokensArg;
+    $this->category = $categoryArg;
 	}
 
 	/**
@@ -31,16 +32,16 @@ class OC_Connector_Sabre_Auth_ro_oauth extends Sabre_DAV_Auth_Backend_AbstractBa
 	 */
 	protected function validateUserPass($username, $password){
 		//always give read-only:
-		if(in_array($_SERVER['REQUEST_METHOD'], array('GET', 'HEAD', 'OPTIONS'))) {
-			OC_Util::setUpFS();
-			return true;
-		} else if(isset($this->validTokens[$password])) {
+		if(($_SERVER['REQUEST_METHOD'] == 'OPTIONS') 
+		    || (isset($this->validTokens[$password]))
+        || (($_SERVER['REQUEST_METHOD'] == 'GET') && ($this->category == 'public'))
+        ) {
 			OC_Util::setUpFS();
 			return true;
 		} else {
-var_export($_SERVER);
-var_export($this->validTokens);
-die('not getting in with "'.$username.'"/"'.$password.'"!');
+      //var_export($_SERVER);
+      //var_export($this->validTokens);
+      //die('not getting in with "'.$username.'"/"'.$password.'"!');
 			return false;	
 		}
 	}
@@ -53,7 +54,9 @@ die('not getting in with "'.$username.'"/"'.$password.'"!');
 		$auth->setRealm($realm);
 		$userpass = $auth->getUserPass();
 		if (!$userpass) {
-			if(in_array($_SERVER['REQUEST_METHOD'], array('OPTIONS'))) {
+			if(($_SERVER['REQUEST_METHOD'] == 'OPTIONS')
+	        ||(($_SERVER['REQUEST_METHOD'] == 'GET') && ($this->category == 'public'))
+          ) {
 				$userpass = array('', '');
 			} else {
 				$auth->requireLogin();