From c85cab363c64b837ef3fcd1463095faa9000036e Mon Sep 17 00:00:00 2001
From: Martin Bartos <mabartos@redhat.com>
Date: Thu, 18 Jun 2020 11:08:36 +0000
Subject: [PATCH] [KEYCLOAK-13202] Reset password redirects to account client

---
 src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java |   23 +++++++++++++++++++----
 1 files changed, 19 insertions(+), 4 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 0b108f1..dd8cebb 100644
--- a/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java
+++ b/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java
@@ -28,7 +28,6 @@
 import org.keycloak.services.util.ResolveRelative;
 
 import java.net.URI;
-import java.net.URISyntaxException;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.Set;
@@ -189,10 +188,26 @@
     private static String getSingleValidRedirectUri(Collection<String> validRedirects) {
         if (validRedirects.size() != 1) return null;
         String validRedirect = validRedirects.iterator().next();
-        int idx = validRedirect.indexOf("/*");
+        return validateRedirectUriWildcard(validRedirect);
+    }
+
+    public static String validateRedirectUriWildcard(String redirectUri) {
+        if (redirectUri == null)
+            return null;
+
+        int idx = redirectUri.indexOf("/*");
         if (idx > -1) {
-            validRedirect = validRedirect.substring(0, idx);
+            redirectUri = redirectUri.substring(0, idx);
         }
-        return validRedirect;
+        return redirectUri;
+    }
+
+    private static String getFirstValidRedirectUri(Collection<String> validRedirects) {
+        final String redirectUri = validRedirects.stream().findFirst().orElse(null);
+        return (redirectUri != null) ? validateRedirectUriWildcard(redirectUri) : null;
+    }
+
+    public static String getFirstValidRedirectUri(KeycloakSession session, String rootUrl, Set<String> validRedirects) {
+        return getFirstValidRedirectUri(resolveValidRedirects(session, rootUrl, validRedirects));
     }
 }

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