added option to configure redirect_uri for auth requests, fixes #199

README.md

@@ -691,6 +691,12 @@ pointing to the URL of your Scoold server.
 
 **If you skip this step, authentication will most likely not work.**
 
+In some cases ([see related issue](https://github.com/Erudika/scoold/issues/199)) you want to have Scoold connect to
+Para which is hosted somewhere on your local network and logging in with some authentication providers, like Microsoft,
+doesn't work. In such cases you would see an error "redirect_uri mismatch" or "invalid redirect_uri - must start with
+https:// or http://localhost". To make it work you can set `para.security.redirect_uri = "https://public-para.host"`
+while still keeping `para.endpoint = "http://local-ip:8080"`.
+
 ## OAuth 2.0 login
 
 You can authenticate users against any OAuth 2.0/OpenID Connect server through the generic OAuth 2 filter in Para.

src/main/java/com/erudika/scoold/controllers/AdminController.java

@@ -127,7 +127,7 @@ public String get(HttpServletRequest req, Model model) {
 		model.addAttribute("title", utils.getLang(req).get("administration.title"));
 		model.addAttribute("configMap", configMap);
 		model.addAttribute("version", pc.getServerVersion());
-		model.addAttribute("endpoint", pc.getEndpoint());
+		model.addAttribute("endpoint", Config.getConfigParam("security.redirect_uri", pc.getEndpoint()));
 		model.addAttribute("paraapp", Config.getConfigParam("access_key", "x"));
 		model.addAttribute("spaces", pc.findQuery("scooldspace", "*", itemcount));
 		model.addAttribute("webhooks", pc.findQuery(Utils.type(Webhook.class), "*", itemcount1));

src/main/java/com/erudika/scoold/controllers/SigninController.java

@@ -238,7 +238,7 @@ public String post(HttpServletRequest req, HttpServletResponse res) {
 	public ResponseEntity<String> globals(HttpServletRequest req, HttpServletResponse res) {
 		StringBuilder sb = new StringBuilder();
 		sb.append("APPID = \"").append(Config.getConfigParam("access_key", "app:scoold").substring(4)).append("\"; ");
-		sb.append("ENDPOINT = \"").append(pc.getEndpoint()).append("\"; ");
+		sb.append("ENDPOINT = \"").append(Config.getConfigParam("security.redirect_uri", pc.getEndpoint())).append("\"; ");
 		sb.append("CONTEXT_PATH = \"").append(CONTEXT_PATH).append("\"; ");
 		sb.append("FB_APP_ID = \"").append(Config.FB_APP_ID).append("\"; ");
 		sb.append("GOOGLE_CLIENT_ID = \"").append(Config.getConfigParam("google_client_id", "")).append("\"; ");