modules/keycloak-protocol-cas

update for KEYCLOAK-6884 KEYCLOAK-3454 KEYCLOAK-8298

Matthias Piepkorn

2018-11-16 89e3d757b9f6893d16e5c3e49fc407aa1a003931

commit \| author \| age
7f7e0c	1	package org.keycloak.protocol.cas.endpoints;
MP	2
	3	import org.jboss.logging.Logger;
	4	import org.jboss.resteasy.annotations.cache.NoCache;
	5	import org.jboss.resteasy.spi.HttpRequest;
	6	import org.keycloak.common.ClientConnection;
	7	import org.keycloak.events.Details;
	8	import org.keycloak.events.Errors;
	9	import org.keycloak.events.EventBuilder;
	10	import org.keycloak.events.EventType;
	11	import org.keycloak.models.*;
	12	import org.keycloak.protocol.cas.CASLoginProtocol;
352436	13	import org.keycloak.protocol.cas.representations.CASErrorCode;
MP	14	import org.keycloak.protocol.cas.utils.CASValidationException;
7f7e0c	15	import org.keycloak.protocol.oidc.utils.RedirectUtils;
MP	16	import org.keycloak.services.managers.AuthenticationManager;
	17	import org.keycloak.services.managers.ClientSessionCode;
	18
	19	import javax.ws.rs.GET;
	20	import javax.ws.rs.core.*;
	21
	22	public class ValidateEndpoint {
57a6c1	23	protected static final Logger logger = Logger.getLogger(ValidateEndpoint.class);
7f7e0c	24
MP	25	private static final String RESPONSE_OK = "yes\n";
	26	private static final String RESPONSE_FAILED = "no\n";
	27
	28	@Context
	29	protected KeycloakSession session;
	30
	31	@Context
	32	protected ClientConnection clientConnection;
	33
	34	@Context
	35	protected HttpRequest request;
	36
	37	@Context
	38	protected HttpHeaders headers;
	39
	40	protected RealmModel realm;
	41	protected EventBuilder event;
	42	protected ClientModel client;
f75caf	43	protected AuthenticatedClientSessionModel clientSession;
7f7e0c	44
MP	45	public ValidateEndpoint(RealmModel realm, EventBuilder event) {
	46	this.realm = realm;
	47	this.event = event;
	48	}
	49
	50	@GET
	51	@NoCache
	52	public Response build() {
dee145	53	MultivaluedMap<String, String> params = session.getContext().getUri().getQueryParameters();
7f7e0c	54	String service = params.getFirst(CASLoginProtocol.SERVICE_PARAM);
MP	55	String ticket = params.getFirst(CASLoginProtocol.TICKET_PARAM);
7124d2	56	boolean renew = params.containsKey(CASLoginProtocol.RENEW_PARAM);
7f7e0c	57
MP	58	event.event(EventType.CODE_TO_TOKEN);
	59
	60	try {
	61	checkSsl();
	62	checkRealm();
	63	checkClient(service);
	64
	65	checkTicket(ticket, renew);
	66
	67	event.success();
	68	return successResponse();
352436	69	} catch (CASValidationException e) {
7f7e0c	70	return errorResponse(e);
MP	71	}
	72	}
	73
	74	protected Response successResponse() {
	75	return Response.ok(RESPONSE_OK).type(MediaType.TEXT_PLAIN).build();
	76	}
	77
352436	78	protected Response errorResponse(CASValidationException e) {
MP	79	return Response.status(e.getStatus()).entity(RESPONSE_FAILED).type(MediaType.TEXT_PLAIN).build();
7f7e0c	80	}
MP	81
	82	private void checkSsl() {
dee145	83	if (!session.getContext().getUri().getBaseUri().getScheme().equals("https") && realm.getSslRequired().isRequired(clientConnection)) {
352436	84	throw new CASValidationException(CASErrorCode.INVALID_REQUEST, "HTTPS required", Response.Status.FORBIDDEN);
7f7e0c	85	}
MP	86	}
	87
	88	private void checkRealm() {
	89	if (!realm.isEnabled()) {
352436	90	throw new CASValidationException(CASErrorCode.INTERNAL_ERROR, "Realm not enabled", Response.Status.FORBIDDEN);
7f7e0c	91	}
MP	92	}
	93
	94	private void checkClient(String service) {
	95	if (service == null) {
	96	event.error(Errors.INVALID_REQUEST);
352436	97	throw new CASValidationException(CASErrorCode.INVALID_REQUEST, "Missing parameter: " + CASLoginProtocol.SERVICE_PARAM, Response.Status.BAD_REQUEST);
7f7e0c	98	}
MP	99
	100	client = realm.getClients().stream()
	101	.filter(c -> CASLoginProtocol.LOGIN_PROTOCOL.equals(c.getProtocol()))
dee145	102	.filter(c -> RedirectUtils.verifyRedirectUri(session.getContext().getUri(), service, realm, c) != null)
7f7e0c	103	.findFirst().orElse(null);
MP	104	if (client == null) {
	105	event.error(Errors.CLIENT_NOT_FOUND);
352436	106	throw new CASValidationException(CASErrorCode.INVALID_SERVICE, "Client not found", Response.Status.BAD_REQUEST);
7f7e0c	107	}
MP	108
	109	if (!client.isEnabled()) {
	110	event.error(Errors.CLIENT_DISABLED);
352436	111	throw new CASValidationException(CASErrorCode.INVALID_SERVICE, "Client disabled", Response.Status.BAD_REQUEST);
7f7e0c	112	}
MP	113
	114	event.client(client.getClientId());
	115
	116	session.getContext().setClient(client);
	117	}
	118
	119	private void checkTicket(String ticket, boolean requireReauth) {
352436	120	if (ticket == null) {
7f7e0c	121	event.error(Errors.INVALID_CODE);
352436	122	throw new CASValidationException(CASErrorCode.INVALID_REQUEST, "Missing parameter: " + CASLoginProtocol.TICKET_PARAM, Response.Status.BAD_REQUEST);
MP	123	}
	124	if (!ticket.startsWith(CASLoginProtocol.SERVICE_TICKET_PREFIX)) {
	125	event.error(Errors.INVALID_CODE);
	126	throw new CASValidationException(CASErrorCode.INVALID_TICKET_SPEC, "Malformed service ticket", Response.Status.BAD_REQUEST);
7f7e0c	127	}
MP	128
	129	String code = ticket.substring(CASLoginProtocol.SERVICE_TICKET_PREFIX.length());
	130
f75caf	131	String[] parts = code.split("\\.");
MP	132	if (parts.length == 4) {
	133	event.detail(Details.CODE_ID, parts[2]);
	134	}
	135
6638b8	136	ClientSessionCode.ParseResult<AuthenticatedClientSessionModel> parseResult = ClientSessionCode.parseResult(code, null, session, realm, client, event, AuthenticatedClientSessionModel.class);
f75caf	137	if (parseResult.isAuthSessionNotFound() \|\| parseResult.isIllegalHash()) {
7f7e0c	138	event.error(Errors.INVALID_CODE);
f75caf	139
MP	140	// Attempt to use same code twice should invalidate existing clientSession
	141	AuthenticatedClientSessionModel clientSession = parseResult.getClientSession();
	142	if (clientSession != null) {
6638b8	143	clientSession.detachFromUserSession();
7f7e0c	144	}
f75caf	145
352436	146	throw new CASValidationException(CASErrorCode.INVALID_TICKET, "Code not valid", Response.Status.BAD_REQUEST);
7f7e0c	147	}
MP	148
	149	clientSession = parseResult.getClientSession();
	150
6638b8	151	if (parseResult.isExpiredToken()) {
MP	152	event.error(Errors.EXPIRED_CODE);
	153	throw new CASValidationException(CASErrorCode.INVALID_TICKET, "Code is expired", Response.Status.BAD_REQUEST);
7f7e0c	154	}
MP	155
57a6c1	156	clientSession.setNote(CASLoginProtocol.SESSION_SERVICE_TICKET, ticket);
7f7e0c	157
7124d2	158	if (requireReauth && AuthenticationManager.isSSOAuthentication(clientSession)) {
MP	159	event.error(Errors.SESSION_EXPIRED);
	160	throw new CASValidationException(CASErrorCode.INVALID_TICKET, "Interactive authentication was requested but not performed", Response.Status.BAD_REQUEST);
	161	}
	162
7f7e0c	163	UserSessionModel userSession = clientSession.getUserSession();
MP	164
	165	if (userSession == null) {
	166	event.error(Errors.USER_SESSION_NOT_FOUND);
352436	167	throw new CASValidationException(CASErrorCode.INVALID_TICKET, "User session not found", Response.Status.BAD_REQUEST);
7f7e0c	168	}
MP	169
	170	UserModel user = userSession.getUser();
	171	if (user == null) {
	172	event.error(Errors.USER_NOT_FOUND);
352436	173	throw new CASValidationException(CASErrorCode.INVALID_TICKET, "User not found", Response.Status.BAD_REQUEST);
7f7e0c	174	}
MP	175	if (!user.isEnabled()) {
	176	event.error(Errors.USER_DISABLED);
352436	177	throw new CASValidationException(CASErrorCode.INVALID_TICKET, "User disabled", Response.Status.BAD_REQUEST);
7f7e0c	178	}
MP	179
	180	event.user(userSession.getUser());
	181	event.session(userSession.getId());
	182
	183	if (!client.getClientId().equals(clientSession.getClient().getClientId())) {
	184	event.error(Errors.INVALID_CODE);
352436	185	throw new CASValidationException(CASErrorCode.INVALID_SERVICE, "Auth error", Response.Status.BAD_REQUEST);
7f7e0c	186	}
MP	187
	188	if (!AuthenticationManager.isSessionValid(realm, userSession)) {
	189	event.error(Errors.USER_SESSION_NOT_FOUND);
352436	190	throw new CASValidationException(CASErrorCode.INVALID_TICKET, "Session not active", Response.Status.BAD_REQUEST);
7f7e0c	191	}
MP	192
	193	}
	194	}