make it possible to manually override the hostname and protocol if the automatic detection from ownCloud fails. This can happen in reverse proxy situations or with loadbalancers setups.

config/config.sample.php

@@ -30,6 +30,12 @@ $CONFIG = array(
 /* Force use of HTTPS connection (true = use HTTPS) */
 "forcessl" => false,
 
+/* The automatic hostname detection of ownCloud can fail in certain reverse proxy situations. This option allows to manually override the automatic detection. You can also add a port. For example "www.example.com:88" */
+"overwritehost" => "",
+
+/* The automatic protocol detection of ownCloud can fail in certain reverse proxy situations. This option allows to manually override the protocol detection. For example "https" */
+"overwriteprotocol" => "",
+
 /* Enhanced auth forces users to enter their password again when performing potential sensitive actions like creating or deleting users */
 "enhancedauth" => true,
 

lib/request.php

@@ -18,6 +18,9 @@ class OC_Request {
 		if(OC::$CLI) {
 			return 'localhost';
 		}
+		if(OC_Config::getValue('overwritehost', '')<>''){
+			return OC_Config::getValue('overwritehost'); 
+		}
 		if (isset($_SERVER['HTTP_X_FORWARDED_HOST'])) {
 			if (strpos($_SERVER['HTTP_X_FORWARDED_HOST'], ",") !== false) {
 				$host = trim(array_pop(explode(",", $_SERVER['HTTP_X_FORWARDED_HOST'])));
@@ -40,6 +43,9 @@ class OC_Request {
 	* Returns the server protocol. It respects reverse proxy servers and load balancers
 	*/
 	public static function serverProtocol() {
+		if(OC_Config::getValue('overwriteprotocol', '')<>''){
+			return OC_Config::getValue('overwriteprotocol'); 
+		}
 		if (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) {
 			$proto = strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']);
 		}else{

ocs/providers.php

@@ -23,7 +23,7 @@
 
 require_once '../lib/base.php';
 
-$url='http://'.substr(OCP\Util::getServerHost().$_SERVER['REQUEST_URI'], 0, -17).'ocs/v1.php/';
+$url=OCP\Util::getServerProtocol().'://'.substr(OCP\Util::getServerHost().$_SERVER['REQUEST_URI'], 0, -17).'ocs/v1.php/';
 
 echo('
 <providers>