From d0daeb497f2d6a59f3c69f3d1bc6f75517c30925 Mon Sep 17 00:00:00 2001
From: Bruno Oliveira da Silva <bruno@abstractj.org>
Date: Wed, 14 Nov 2018 19:09:22 +0000
Subject: [PATCH] Redirect URLs are not normalized
---
src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java | 44 +++++++++++++++++++++++++++++++++++++++-----
1 files changed, 39 insertions(+), 5 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 60f5493..052c048 100644
--- a/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java
+++ b/src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java
@@ -26,6 +26,8 @@
import javax.ws.rs.core.UriInfo;
import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
@@ -38,12 +40,16 @@
public static String verifyRealmRedirectUri(UriInfo uriInfo, String redirectUri, RealmModel realm) {
Set<String> validRedirects = getValidateRedirectUris(uriInfo, realm);
- return verifyRedirectUri(uriInfo, null, redirectUri, realm, validRedirects);
+ return verifyRedirectUri(uriInfo, null, redirectUri, realm, validRedirects, true);
}
public static String verifyRedirectUri(UriInfo uriInfo, String redirectUri, RealmModel realm, ClientModel client) {
+ return verifyRedirectUri(uriInfo, redirectUri, realm, client, true);
+ }
+
+ public static String verifyRedirectUri(UriInfo uriInfo, String redirectUri, RealmModel realm, ClientModel client, boolean requireRedirectUri) {
if (client != null)
- return verifyRedirectUri(uriInfo, client.getRootUrl(), redirectUri, realm, client.getRedirectUris());
+ return verifyRedirectUri(uriInfo, client.getRootUrl(), redirectUri, realm, client.getRedirectUris(), requireRedirectUri);
return null;
}
@@ -69,10 +75,20 @@
return redirects;
}
- private static String verifyRedirectUri(UriInfo uriInfo, String rootUrl, String redirectUri, RealmModel realm, Set<String> validRedirects) {
+ private static String verifyRedirectUri(UriInfo uriInfo, String rootUrl, String redirectUri, RealmModel realm, Set<String> validRedirects, boolean requireRedirectUri) {
+
+ if (redirectUri != null)
+ redirectUri = normalizeUrl(redirectUri);
+
if (redirectUri == null) {
- logger.debug("No Redirect URI parameter specified");
- return null;
+ if (!requireRedirectUri) {
+ redirectUri = getSingleValidRedirectUri(validRedirects);
+ }
+
+ if (redirectUri == null) {
+ logger.debug("No Redirect URI parameter specified");
+ return null;
+ }
} else if (validRedirects.isEmpty()) {
logger.debug("No Redirect URIs supplied");
redirectUri = null;
@@ -149,4 +165,22 @@
return false;
}
+ private static String getSingleValidRedirectUri(Collection<String> validRedirects) {
+ if (validRedirects.size() != 1) return null;
+ String validRedirect = validRedirects.iterator().next();
+ int idx = validRedirect.indexOf("/*");
+ if (idx > -1) {
+ validRedirect = validRedirect.substring(0, idx);
+ }
+ return validRedirect;
+ }
+
+ private static String normalizeUrl(String url) {
+ try {
+ URI uri = new URI(url);
+ return uri.normalize().toString();
+ } catch (URISyntaxException e) {
+ throw new IllegalArgumentException("Invalid URL syntax: " + e.getMessage());
+ }
+ }
}
--
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