From 0dd6a08579adb4f5a92fc6bc338935a348528e6f Mon Sep 17 00:00:00 2001
From: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
Date: Tue, 21 Feb 2023 08:47:25 +0000
Subject: [PATCH] Update to Keycloak 20.0.5

---
 src/main/java/org/keycloak/protocol/cas/endpoints/AuthorizationEndpoint.java |   69 ++++++++++++++++++----------------
 1 files changed, 37 insertions(+), 32 deletions(-)

diff --git a/src/main/java/org/keycloak/protocol/cas/endpoints/AuthorizationEndpoint.java b/src/main/java/org/keycloak/protocol/cas/endpoints/AuthorizationEndpoint.java
index aff46db..f3cd9fd 100644
--- a/src/main/java/org/keycloak/protocol/cas/endpoints/AuthorizationEndpoint.java
+++ b/src/main/java/org/keycloak/protocol/cas/endpoints/AuthorizationEndpoint.java
@@ -6,7 +6,6 @@
 import org.keycloak.events.EventBuilder;
 import org.keycloak.events.EventType;
 import org.keycloak.models.ClientModel;
-import org.keycloak.models.ClientSessionModel;
 import org.keycloak.models.RealmModel;
 import org.keycloak.protocol.AuthorizationEndpointBase;
 import org.keycloak.protocol.cas.CASLoginProtocol;
@@ -14,6 +13,7 @@
 import org.keycloak.services.ErrorPageException;
 import org.keycloak.services.messages.Messages;
 import org.keycloak.services.util.CacheControlUtil;
+import org.keycloak.sessions.AuthenticationSessionModel;
 
 import javax.ws.rs.GET;
 import javax.ws.rs.core.MultivaluedMap;
@@ -23,7 +23,7 @@
     private static final Logger logger = Logger.getLogger(AuthorizationEndpoint.class);
 
     private ClientModel client;
-    private ClientSessionModel clientSession;
+    private AuthenticationSessionModel authenticationSession;
     private String redirectUri;
 
     public AuthorizationEndpoint(RealmModel realm, EventBuilder event) {
@@ -33,58 +33,64 @@
 
     @GET
     public Response build() {
-        MultivaluedMap<String, String> params = uriInfo.getQueryParameters();
+        MultivaluedMap<String, String> params = session.getContext().getUri().getQueryParameters();
         String service = params.getFirst(CASLoginProtocol.SERVICE_PARAM);
-        boolean renew = "true".equalsIgnoreCase(params.getFirst(CASLoginProtocol.RENEW_PARAM));
-        boolean gateway = "true".equalsIgnoreCase(params.getFirst(CASLoginProtocol.GATEWAY_PARAM));
+
+        boolean isSaml11Request = false;
+        if (service == null && params.containsKey(CASLoginProtocol.TARGET_PARAM)) {
+            // SAML 1.1 authorization uses the TARGET parameter instead of service
+            service = params.getFirst(CASLoginProtocol.TARGET_PARAM);
+            isSaml11Request = true;
+        }
+        boolean renew = params.containsKey(CASLoginProtocol.RENEW_PARAM);
+        boolean gateway = params.containsKey(CASLoginProtocol.GATEWAY_PARAM);
 
         checkSsl();
         checkRealm();
         checkClient(service);
 
-        createClientSession();
+        authenticationSession = createAuthenticationSession(client, null);
+        updateAuthenticationSession();
+
         // So back button doesn't work
         CacheControlUtil.noBackButtonCacheControlHeader();
 
+        if (renew) {
+            authenticationSession.setClientNote(CASLoginProtocol.RENEW_PARAM, "true");
+        }
+        if (gateway) {
+            authenticationSession.setClientNote(CASLoginProtocol.GATEWAY_PARAM, "true");
+        }
+        if (isSaml11Request) {
+            // Flag the session so we can return the ticket as "SAMLart" in the response
+            authenticationSession.setClientNote(CASLoginProtocol.TARGET_PARAM, "true");
+        }
+
         this.event.event(EventType.LOGIN);
-        return handleBrowserAuthenticationRequest(clientSession, new CASLoginProtocol(session, realm, uriInfo, headers, event, renew), gateway, false);
-    }
-
-    private void checkSsl() {
-        if (!uriInfo.getBaseUri().getScheme().equals("https") && realm.getSslRequired().isRequired(clientConnection)) {
-            event.error(Errors.SSL_REQUIRED);
-            throw new ErrorPageException(session, Messages.HTTPS_REQUIRED);
-        }
-    }
-
-    private void checkRealm() {
-        if (!realm.isEnabled()) {
-            event.error(Errors.REALM_DISABLED);
-            throw new ErrorPageException(session, Messages.REALM_NOT_ENABLED);
-        }
+        return handleBrowserAuthenticationRequest(authenticationSession, new CASLoginProtocol(session, realm, session.getContext().getUri(), headers, event), gateway, false);
     }
 
     private void checkClient(String service) {
         if (service == null) {
             event.error(Errors.INVALID_REQUEST);
-            throw new ErrorPageException(session, Messages.MISSING_PARAMETER, CASLoginProtocol.SERVICE_PARAM);
+            throw new ErrorPageException(session, Response.Status.BAD_REQUEST, Messages.MISSING_PARAMETER, CASLoginProtocol.SERVICE_PARAM);
         }
 
-        client = realm.getClients().stream()
+        client = realm.getClientsStream()
                 .filter(c -> CASLoginProtocol.LOGIN_PROTOCOL.equals(c.getProtocol()))
-                .filter(c -> RedirectUtils.verifyRedirectUri(uriInfo, service, realm, c) != null)
+                .filter(c -> RedirectUtils.verifyRedirectUri(session, service, c) != null)
                 .findFirst().orElse(null);
         if (client == null) {
             event.error(Errors.CLIENT_NOT_FOUND);
-            throw new ErrorPageException(session, Messages.CLIENT_NOT_FOUND);
+            throw new ErrorPageException(session, Response.Status.BAD_REQUEST, Messages.CLIENT_NOT_FOUND);
         }
 
         if (!client.isEnabled()) {
             event.error(Errors.CLIENT_DISABLED);
-            throw new ErrorPageException(session, Messages.CLIENT_DISABLED);
+            throw new ErrorPageException(session, Response.Status.BAD_REQUEST, Messages.CLIENT_DISABLED);
         }
 
-        redirectUri = RedirectUtils.verifyRedirectUri(uriInfo, service, realm, client);
+        redirectUri = RedirectUtils.verifyRedirectUri(session, service, client);
 
         event.client(client.getClientId());
         event.detail(Details.REDIRECT_URI, redirectUri);
@@ -92,10 +98,9 @@
         session.getContext().setClient(client);
     }
 
-    private void createClientSession() {
-        clientSession = session.sessions().createClientSession(realm, client);
-        clientSession.setAuthMethod(CASLoginProtocol.LOGIN_PROTOCOL);
-        clientSession.setRedirectUri(redirectUri);
-        clientSession.setAction(ClientSessionModel.Action.AUTHENTICATE.name());
+    private void updateAuthenticationSession() {
+        authenticationSession.setProtocol(CASLoginProtocol.LOGIN_PROTOCOL);
+        authenticationSession.setRedirectUri(redirectUri);
+        authenticationSession.setAction(AuthenticationSessionModel.Action.AUTHENTICATE.name());
     }
 }

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