From 737535c61ebf4d2c5aa8e40b23d01f4c26423586 Mon Sep 17 00:00:00 2001
From: Stian Thorgersen <stianst@gmail.com>
Date: Wed, 19 Oct 2016 16:41:43 +0000
Subject: [PATCH] KEYCLOAK-3364 Fix for dns that ends with digit

---
 src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java b/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java
index 125769e..f00b2a7 100644
--- a/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java
+++ b/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java
@@ -17,10 +17,11 @@
 
 package org.keycloak.protocol.oidc.utils;
 
+import org.jboss.logging.Logger;
+import org.keycloak.common.util.UriUtils;
 import org.keycloak.models.ClientModel;
 import org.keycloak.models.Constants;
 import org.keycloak.models.RealmModel;
-import org.keycloak.services.ServicesLogger;
 import org.keycloak.services.Urls;
 
 import javax.ws.rs.core.UriInfo;
@@ -33,7 +34,7 @@
  */
 public class RedirectUtils {
 
-    private static final ServicesLogger logger = ServicesLogger.ROOT_LOGGER;
+    private static final Logger logger = Logger.getLogger(RedirectUtils.class);
 
     public static String verifyRealmRedirectUri(UriInfo uriInfo, String redirectUri, RealmModel realm) {
         Set<String> validRedirects = getValidateRedirectUris(uriInfo, realm);
@@ -121,15 +122,12 @@
 
     private static String relativeToAbsoluteURI(UriInfo uriInfo, String rootUrl, String relative) {
         if (rootUrl == null || rootUrl.isEmpty()) {
-            URI baseUri = uriInfo.getBaseUri();
-            String uri = baseUri.getScheme() + "://" + baseUri.getHost();
-            if (baseUri.getPort() != -1) {
-                uri += ":" + baseUri.getPort();
-            }
-            rootUrl = uri;
+            rootUrl = UriUtils.getOrigin(uriInfo.getBaseUri());
         }
-        relative = rootUrl + relative;
-        return relative;
+        StringBuilder sb = new StringBuilder();
+        sb.append(rootUrl);
+        sb.append(relative);
+        return sb.toString();
     }
 
     private static boolean matchesRedirects(Set<String> validRedirects, String redirect) {

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