// Path: src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
// public class CASLoginProtocol implements LoginProtocol {
//     private static final Logger logger = Logger.getLogger(CASLoginProtocol.class);
// 
//     public static final String LOGIN_PROTOCOL = "cas";
// 
//     public static final String SERVICE_PARAM = "service";
//     public static final String TARGET_PARAM = "TARGET";
//     public static final String RENEW_PARAM = "renew";
//     public static final String GATEWAY_PARAM = "gateway";
//     public static final String TICKET_PARAM = "ticket";
//     public static final String FORMAT_PARAM = "format";
// 
//     public static final String TICKET_RESPONSE_PARAM = "ticket";
// 
//     public static final String SERVICE_TICKET_PREFIX = "ST-";
//     public static final String SESSION_SERVICE_TICKET = "service_ticket";
// 
//     public static final String LOGOUT_REDIRECT_URI = "CAS_LOGOUT_REDIRECT_URI";
// 
//     protected KeycloakSession session;
//     protected RealmModel realm;
//     protected UriInfo uriInfo;
//     protected HttpHeaders headers;
//     protected EventBuilder event;
// 
//     public CASLoginProtocol(KeycloakSession session, RealmModel realm, UriInfo uriInfo, HttpHeaders headers, EventBuilder event) {
//         this.session = session;
//         this.realm = realm;
//         this.uriInfo = uriInfo;
//         this.headers = headers;
//         this.event = event;
//     }
// 
//     public CASLoginProtocol() {
//     }
// 
//     @Override
//     public CASLoginProtocol setSession(KeycloakSession session) {
//         this.session = session;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setRealm(RealmModel realm) {
//         this.realm = realm;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setUriInfo(UriInfo uriInfo) {
//         this.uriInfo = uriInfo;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setHttpHeaders(HttpHeaders headers) {
//         this.headers = headers;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setEventBuilder(EventBuilder event) {
//         this.event = event;
//         return this;
//     }
// 
//     @Override
//     public Response authenticated(AuthenticationSessionModel authSession, UserSessionModel userSession, ClientSessionContext clientSessionCtx) {
//         AuthenticatedClientSessionModel clientSession = clientSessionCtx.getClientSession();
// 
//         String service = authSession.getRedirectUri();
//         //TODO validate service
// 
//         OAuth2Code codeData = new OAuth2Code(UUID.randomUUID(),
//                 Time.currentTime() + userSession.getRealm().getAccessCodeLifespan(),
//                 null, null, authSession.getRedirectUri(), null, null);
//         String code = OAuth2CodeParser.persistCode(session, clientSession, codeData);
// 
//         KeycloakUriBuilder uriBuilder = KeycloakUriBuilder.fromUri(service);
//         uriBuilder.queryParam(TICKET_RESPONSE_PARAM, SERVICE_TICKET_PREFIX + code);
// 
//         URI redirectUri = uriBuilder.build();
// 
//         Response.ResponseBuilder location = Response.status(302).location(redirectUri);
//         return location.build();
//     }
// 
//     @Override
//     public Response sendError(AuthenticationSessionModel authSession, Error error) {
//         return Response.serverError().entity(error).build();
//     }
// 
//     @Override
//     public void backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
//         String logoutUrl = clientSession.getRedirectUri();
//         String serviceTicket = clientSession.getNote(CASLoginProtocol.SESSION_SERVICE_TICKET);
//         //check if session is fully authenticated (i.e. serviceValidate has been called)
//         if (serviceTicket != null && !serviceTicket.isEmpty()) {
//             sendSingleLogoutRequest(logoutUrl, serviceTicket);
//         }
//         ClientModel client = clientSession.getClient();
//         new ResourceAdminManager(session).logoutClientSession(uriInfo.getRequestUri(), realm, client, clientSession);
//     }
// 
//     private void sendSingleLogoutRequest(String logoutUrl, String serviceTicket) {
//         HttpEntity requestEntity = LogoutHelper.buildSingleLogoutRequest(serviceTicket);
//         try {
//             LogoutHelper.postWithRedirect(session, logoutUrl, requestEntity);
//             logger.debug("Sent CAS single logout for service " + logoutUrl);
//         } catch (IOException e) {
//             logger.warn("Failed to call CAS service for logout: " + logoutUrl, e);
//         }
//     }
// 
//     @Override
//     public Response frontchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
//         // todo oidc redirect support
//         throw new RuntimeException("NOT IMPLEMENTED");
//     }
// 
//     @Override
//     public Response finishLogout(UserSessionModel userSession) {
//         String redirectUri = userSession.getNote(CASLoginProtocol.LOGOUT_REDIRECT_URI);
// 
//         event.event(EventType.LOGOUT);
//         event.user(userSession.getUser()).session(userSession).success();
// 
//         if (redirectUri != null) {
//             return Response.status(302).location(URI.create(redirectUri)).build();
//         } else {
//             LoginFormsProvider infoPage = session.getProvider(LoginFormsProvider.class).setSuccess("Logout successful");
//             infoPage.setAttribute("skipLink", true);
//             return infoPage.createInfoPage();
//         }
//     }
// 
//     @Override
//     public boolean requireReauthentication(UserSessionModel userSession, AuthenticationSessionModel authSession) {
//         return "true".equals(authSession.getClientNote(CASLoginProtocol.RENEW_PARAM));
//     }
// 
//     @Override
//     public void close() {
// 
//     }
// }


import org.jboss.resteasy.spi.HttpRequest;
import org.keycloak.protocol.cas.CASLoginProtocol;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.core.*;
package org.keycloak.protocol.cas.utils;



public class ContentTypeHelper {
    private final HttpRequest request;
    private final Request restRequest;
    private final UriInfo uriInfo;

    public ContentTypeHelper(HttpRequest request, Request restRequest, UriInfo uriInfo) {
// Path: src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
// public class CASLoginProtocol implements LoginProtocol {
//     private static final Logger logger = Logger.getLogger(CASLoginProtocol.class);
// 
//     public static final String LOGIN_PROTOCOL = "cas";
// 
//     public static final String SERVICE_PARAM = "service";
//     public static final String TARGET_PARAM = "TARGET";
//     public static final String RENEW_PARAM = "renew";
//     public static final String GATEWAY_PARAM = "gateway";
//     public static final String TICKET_PARAM = "ticket";
//     public static final String FORMAT_PARAM = "format";
// 
//     public static final String TICKET_RESPONSE_PARAM = "ticket";
// 
//     public static final String SERVICE_TICKET_PREFIX = "ST-";
//     public static final String SESSION_SERVICE_TICKET = "service_ticket";
// 
//     public static final String LOGOUT_REDIRECT_URI = "CAS_LOGOUT_REDIRECT_URI";
// 
//     protected KeycloakSession session;
//     protected RealmModel realm;
//     protected UriInfo uriInfo;
//     protected HttpHeaders headers;
//     protected EventBuilder event;
// 
//     public CASLoginProtocol(KeycloakSession session, RealmModel realm, UriInfo uriInfo, HttpHeaders headers, EventBuilder event) {
//         this.session = session;
//         this.realm = realm;
//         this.uriInfo = uriInfo;
//         this.headers = headers;
//         this.event = event;
//     }
// 
//     public CASLoginProtocol() {
//     }
// 
//     @Override
//     public CASLoginProtocol setSession(KeycloakSession session) {
//         this.session = session;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setRealm(RealmModel realm) {
//         this.realm = realm;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setUriInfo(UriInfo uriInfo) {
//         this.uriInfo = uriInfo;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setHttpHeaders(HttpHeaders headers) {
//         this.headers = headers;
//         return this;
//     }
// 
//     @Override
//     public CASLoginProtocol setEventBuilder(EventBuilder event) {
//         this.event = event;
//         return this;
//     }
// 
//     @Override
//     public Response authenticated(AuthenticationSessionModel authSession, UserSessionModel userSession, ClientSessionContext clientSessionCtx) {
//         AuthenticatedClientSessionModel clientSession = clientSessionCtx.getClientSession();
// 
//         String service = authSession.getRedirectUri();
//         //TODO validate service
// 
//         OAuth2Code codeData = new OAuth2Code(UUID.randomUUID(),
//                 Time.currentTime() + userSession.getRealm().getAccessCodeLifespan(),
//                 null, null, authSession.getRedirectUri(), null, null);
//         String code = OAuth2CodeParser.persistCode(session, clientSession, codeData);
// 
//         KeycloakUriBuilder uriBuilder = KeycloakUriBuilder.fromUri(service);
//         uriBuilder.queryParam(TICKET_RESPONSE_PARAM, SERVICE_TICKET_PREFIX + code);
// 
//         URI redirectUri = uriBuilder.build();
// 
//         Response.ResponseBuilder location = Response.status(302).location(redirectUri);
//         return location.build();
//     }
// 
//     @Override
//     public Response sendError(AuthenticationSessionModel authSession, Error error) {
//         return Response.serverError().entity(error).build();
//     }
// 
//     @Override
//     public void backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
//         String logoutUrl = clientSession.getRedirectUri();
//         String serviceTicket = clientSession.getNote(CASLoginProtocol.SESSION_SERVICE_TICKET);
//         //check if session is fully authenticated (i.e. serviceValidate has been called)
//         if (serviceTicket != null && !serviceTicket.isEmpty()) {
//             sendSingleLogoutRequest(logoutUrl, serviceTicket);
//         }
//         ClientModel client = clientSession.getClient();
//         new ResourceAdminManager(session).logoutClientSession(uriInfo.getRequestUri(), realm, client, clientSession);
//     }
// 
//     private void sendSingleLogoutRequest(String logoutUrl, String serviceTicket) {
//         HttpEntity requestEntity = LogoutHelper.buildSingleLogoutRequest(serviceTicket);
//         try {
//             LogoutHelper.postWithRedirect(session, logoutUrl, requestEntity);
//             logger.debug("Sent CAS single logout for service " + logoutUrl);
//         } catch (IOException e) {
//             logger.warn("Failed to call CAS service for logout: " + logoutUrl, e);
//         }
//     }
// 
//     @Override
//     public Response frontchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
//         // todo oidc redirect support
//         throw new RuntimeException("NOT IMPLEMENTED");
//     }
// 
//     @Override
//     public Response finishLogout(UserSessionModel userSession) {
//         String redirectUri = userSession.getNote(CASLoginProtocol.LOGOUT_REDIRECT_URI);
// 
//         event.event(EventType.LOGOUT);
//         event.user(userSession.getUser()).session(userSession).success();
// 
//         if (redirectUri != null) {
//             return Response.status(302).location(URI.create(redirectUri)).build();
//         } else {
//             LoginFormsProvider infoPage = session.getProvider(LoginFormsProvider.class).setSuccess("Logout successful");
//             infoPage.setAttribute("skipLink", true);
//             return infoPage.createInfoPage();
//         }
//     }
// 
//     @Override
//     public boolean requireReauthentication(UserSessionModel userSession, AuthenticationSessionModel authSession) {
//         return "true".equals(authSession.getClientNote(CASLoginProtocol.RENEW_PARAM));
//     }
// 
//     @Override
//     public void close() {
// 
//     }
// }


// Path: src/main/java/org/keycloak/protocol/cas/utils/ContentTypeHelper.java
import org.jboss.resteasy.spi.HttpRequest;
import org.keycloak.protocol.cas.CASLoginProtocol;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.core.*;

package org.keycloak.protocol.cas.utils;



public class ContentTypeHelper {
    private final HttpRequest request;
    private final Request restRequest;
    private final UriInfo uriInfo;

    public ContentTypeHelper(HttpRequest request, Request restRequest, UriInfo uriInfo) {
        this.request = request;