package org.keycloak.services.resources;
import org.jboss.resteasy.annotations.cache.NoCache;
import org.jboss.resteasy.jose.jws.JWSBuilder;
import org.jboss.resteasy.jose.jws.JWSInput;
import org.jboss.resteasy.jose.jws.crypto.RSAProvider;
import org.jboss.resteasy.jwt.JsonSerialization;
import org.jboss.resteasy.logging.Logger;
import org.keycloak.representations.AccessTokenResponse;
import org.keycloak.representations.SkeletonKeyToken;
import org.keycloak.services.managers.AccessCodeEntry;
import org.keycloak.services.managers.AuthenticationManager;
import org.keycloak.services.managers.RealmManager;
import org.keycloak.services.managers.ResourceAdminManager;
import org.keycloak.services.managers.TokenManager;
import org.keycloak.services.models.RealmModel;
import org.keycloak.services.models.RoleModel;
import org.keycloak.services.models.UserModel;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.NotAuthorizedException;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.SecurityContext;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriInfo;
import javax.ws.rs.ext.Providers;
import java.security.PrivateKey;
import java.util.HashMap;
import java.util.Map;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class TokenService extends AbstractLoginService {
protected static final Logger logger = Logger.getLogger(TokenService.class);
@Context
protected Providers providers;
@Context
protected SecurityContext securityContext;
private ResourceAdminManager resourceAdminManager = new ResourceAdminManager();
public TokenService(RealmModel realm, TokenManager tokenManager) {
super(realm, tokenManager);
}
public static UriBuilder tokenServiceBaseUrl(UriInfo uriInfo) {
UriBuilder base = uriInfo.getBaseUriBuilder()
.path(RealmsResource.class).path(RealmsResource.class, "getTokenService");
return base;
}
public static UriBuilder accessCodeToTokenUrl(UriInfo uriInfo) {
return tokenServiceBaseUrl(uriInfo).path(TokenService.class, "accessCodeToToken");
}
public static UriBuilder grantAccessTokenUrl(UriInfo uriInfo) {
return tokenServiceBaseUrl(uriInfo).path(TokenService.class, "grantAccessToken");
}
public static UriBuilder grantIdentityTokenUrl(UriInfo uriInfo) {
return tokenServiceBaseUrl(uriInfo).path(TokenService.class, "grantIdentityToken");
}
public static UriBuilder loginPageUrl(UriInfo uriInfo) {
return tokenServiceBaseUrl(uriInfo).path(TokenService.class, "loginPage");
}
public static UriBuilder processLoginUrl(UriInfo uriInfo) {
return tokenServiceBaseUrl(uriInfo).path(TokenService.class, "processLogin");
}
public static UriBuilder processOAuthUrl(UriInfo uriInfo) {
return tokenServiceBaseUrl(uriInfo).path(TokenService.class, "processOAuth");
}
@Path("grants/identity-token")
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces(MediaType.APPLICATION_JSON)
public Response grantIdentityToken(final MultivaluedMap<String, String> form) {
return new Transaction() {
protected Response callImpl() {
String username = form.getFirst(AuthenticationManager.FORM_USERNAME);
if (username == null) {
throw new NotAuthorizedException("No user");
}
if (!realm.isEnabled()) {
throw new NotAuthorizedException("Disabled realm");
}
UserModel user = realm.getUser(username);
if (user == null) {
throw new NotAuthorizedException("No user");
}
if (!user.isEnabled()) {
throw new NotAuthorizedException("Disabled user.");
}
if (!authManager.authenticateForm(realm, user, form)) {
throw new NotAuthorizedException("FORM");
}
tokenManager = new TokenManager();
SkeletonKeyToken token = authManager.createIdentityToken(realm, username);
String encoded = tokenManager.encodeToken(realm, token);
AccessTokenResponse res = accessTokenResponse(token, encoded);
return Response.ok(res, MediaType.APPLICATION_JSON_TYPE).build();
}
}.call();
}
@Path("grants/access")
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces(MediaType.APPLICATION_JSON)
public Response grantAccessToken(final MultivaluedMap<String, String> form) {
return new Transaction() {
protected Response callImpl() {
String username = form.getFirst(AuthenticationManager.FORM_USERNAME);
if (username == null) {
throw new NotAuthorizedException("No user");
}
if (!realm.isEnabled()) {
throw new NotAuthorizedException("Disabled realm");
}
UserModel user = realm.getUser(username);
if (user == null) {
throw new NotAuthorizedException("No user");
}
if (!user.isEnabled()) {
throw new NotAuthorizedException("Disabled user.");
}
if (authManager.authenticateForm(realm, user, form)) {
throw new NotAuthorizedException("Auth failed");
}
SkeletonKeyToken token = tokenManager.createAccessToken(realm, user);
String encoded = tokenManager.encodeToken(realm, token);
AccessTokenResponse res = accessTokenResponse(token, encoded);
return Response.ok(res, MediaType.APPLICATION_JSON_TYPE).build();
}
}.call();
}
@Path("auth/request/login")
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response processLogin(final MultivaluedMap<String, String> formData) {
return new Transaction() {
protected Response callImpl() {
String clientId = formData.getFirst("client_id");
String scopeParam = formData.getFirst("scope");
String state = formData.getFirst("state");
String redirect = formData.getFirst("redirect_uri");
if (!realm.isEnabled()) {
securityFailureForward("Realm not enabled.");
return null;
}
UserModel client = realm.getUser(clientId);
if (client == null) {
securityFailureForward("Unknown login requester.");
return null;
}
if (!client.isEnabled()) {
securityFailureForward("Login requester not enabled.");
return null;
}
String username = formData.getFirst("username");
UserModel user = realm.getUser(username);
if (user == null) {
logger.error("Incorrect user name.");
request.setAttribute("KEYCLOAK_LOGIN_ERROR_MESSAGE", "Incorrect user name.");
forwardToLoginForm(redirect, clientId, scopeParam, state);
return null;
}
if (!user.isEnabled()) {
securityFailureForward("Your account is not enabled.");
return null;
}
boolean authenticated = authManager.authenticateForm(realm, user, formData);
if (!authenticated) {
logger.error("Authentication failed");
request.setAttribute("username", username);
request.setAttribute("KEYCLOAK_LOGIN_ERROR_MESSAGE", "Invalid credentials.");
forwardToLoginForm(redirect, clientId, scopeParam, state);
return null;
}
return processAccessCode(scopeParam, state, redirect, client, user);
}
}.call();
}
@Path("access/codes")
@POST
@Produces("application/json")
public Response accessCodeToToken(final MultivaluedMap<String, String> formData) {
return new Transaction() {
protected Response callImpl() {
logger.info("accessRequest <---");
if (!realm.isEnabled()) {
throw new NotAuthorizedException("Realm not enabled");
}
String code = formData.getFirst("code");
if (code == null) {
logger.debug("code not specified");
Map<String, String> error = new HashMap<String, String>();
error.put("error", "invalid_request");
error.put("error_description", "code not specified");
return Response.status(Response.Status.BAD_REQUEST).entity(error).type("application/json").build();
}
String client_id = formData.getFirst("client_id");
if (client_id == null) {
logger.debug("client_id not specified");
Map<String, String> error = new HashMap<String, String>();
error.put("error", "invalid_request");
error.put("error_description", "client_id not specified");
return Response.status(Response.Status.BAD_REQUEST).entity(error).type("application/json").build();
}
UserModel client = realm.getUser(client_id);
if (client == null) {
logger.debug("Could not find user");
Map<String, String> error = new HashMap<String, String>();
error.put("error", "invalid_client");
error.put("error_description", "Could not find user");
return Response.status(Response.Status.BAD_REQUEST).entity(error).type("application/json").build();
}
if (!client.isEnabled()) {
logger.debug("user is not enabled");
Map<String, String> error = new HashMap<String, String>();
error.put("error", "invalid_client");
error.put("error_description", "User is not enabled");
return Response.status(Response.Status.BAD_REQUEST).entity(error).type("application/json").build();
}
boolean authenticated = authManager.authenticateForm(realm, client, formData);
if (!authenticated) {
Map<String, String> error = new HashMap<String, String>();
error.put("error", "unauthorized_client");
return Response.status(Response.Status.BAD_REQUEST).entity(error).type("application/json").build();
}
JWSInput input = new JWSInput(code, providers);
boolean verifiedCode = false;
try {
verifiedCode = RSAProvider.verify(input, realm.getPublicKey());
} catch (Exception ignored) {
logger.debug("Failed to verify signature", ignored);
}
if (!verifiedCode) {
Map<String, String> res = new HashMap<String, String>();
res.put("error", "invalid_grant");
res.put("error_description", "Unable to verify code signature");
return Response.status(Response.Status.BAD_REQUEST).type(MediaType.APPLICATION_JSON_TYPE).entity(res).build();
}
String key = input.readContent(String.class);
AccessCodeEntry accessCode = tokenManager.pullAccessCode(key);
if (accessCode == null) {
Map<String, String> res = new HashMap<String, String>();
res.put("error", "invalid_grant");
res.put("error_description", "Code not found");
return Response.status(Response.Status.BAD_REQUEST).type(MediaType.APPLICATION_JSON_TYPE).entity(res).build();
}
if (accessCode.isExpired()) {
Map<String, String> res = new HashMap<String, String>();
res.put("error", "invalid_grant");
res.put("error_description", "Code is expired");
return Response.status(Response.Status.BAD_REQUEST).type(MediaType.APPLICATION_JSON_TYPE).entity(res).build();
}
if (!accessCode.getToken().isActive()) {
Map<String, String> res = new HashMap<String, String>();
res.put("error", "invalid_grant");
res.put("error_description", "Token expired");
return Response.status(Response.Status.BAD_REQUEST).type(MediaType.APPLICATION_JSON_TYPE).entity(res).build();
}
if (!client.getLoginName().equals(accessCode.getClient().getLoginName())) {
Map<String, String> res = new HashMap<String, String>();
res.put("error", "invalid_grant");
res.put("error_description", "Auth error");
return Response.status(Response.Status.BAD_REQUEST).type(MediaType.APPLICATION_JSON_TYPE).entity(res).build();
}
logger.info("accessRequest SUCCESS");
AccessTokenResponse res = accessTokenResponse(realm.getPrivateKey(), accessCode.getToken());
return Response.ok(res).build();
}
}.call();
}
protected AccessTokenResponse accessTokenResponse(PrivateKey privateKey, SkeletonKeyToken token) {
byte[] tokenBytes = null;
try {
tokenBytes = JsonSerialization.toByteArray(token, false);
} catch (Exception e) {
throw new RuntimeException(e);
}
String encodedToken = new JWSBuilder()
.content(tokenBytes)
.rsa256(privateKey);
return accessTokenResponse(token, encodedToken);
}
protected AccessTokenResponse accessTokenResponse(SkeletonKeyToken token, String encodedToken) {
AccessTokenResponse res = new AccessTokenResponse();
res.setToken(encodedToken);
res.setTokenType("bearer");
if (token.getExpiration() != 0) {
long time = token.getExpiration() - (System.currentTimeMillis() / 1000);
res.setExpiresIn(time);
}
return res;
}
@Path("login")
@GET
public Response loginPage(final @QueryParam("response_type") String responseType,
final @QueryParam("redirect_uri") String redirect,
final @QueryParam("client_id") String clientId,
final @QueryParam("scope") String scopeParam,
final @QueryParam("state") String state) {
return new Transaction() {
protected Response callImpl() {
if (!realm.isEnabled()) {
securityFailureForward("Realm not enabled");
return null;
}
UserModel client = realm.getUser(clientId);
if (client == null) {
securityFailureForward("Unknown login requester.");
transaction.rollback();
return null;
}
if (!client.isEnabled()) {
securityFailureForward("Login requester not enabled.");
transaction.rollback();
session.close();
return null;
}
RoleModel resourceRole = realm.getRole(RealmManager.RESOURCE_ROLE);
RoleModel identityRequestRole = realm.getRole(RealmManager.IDENTITY_REQUESTER_ROLE);
boolean isResource = realm.hasRole(client, resourceRole);
if (!isResource && !realm.hasRole(client, identityRequestRole)) {
securityFailureForward("Login requester not allowed to request login.");
transaction.rollback();
session.close();
return null;
}
UserModel user = authManager.authenticateIdentityCookie(realm, uriInfo, headers);
if (user != null) {
logger.info(user.getLoginName() + " already logged in.");
return processAccessCode(scopeParam, state, redirect, client, user);
}
forwardToLoginForm(redirect, clientId, scopeParam, state);
return null;
}
}.call();
}
@Path("logout")
@GET
@NoCache
public Response logout(final @QueryParam("redirect_uri") String redirectUri) {
return new Transaction() {
protected Response callImpl() {
// todo do we care if anybody can trigger this?
UserModel user = authManager.authenticateIdentityCookie(realm, uriInfo, headers);
if (user != null) {
logger.info("Logging out: " + user.getLoginName());
authManager.expireIdentityCookie(realm, uriInfo);
resourceAdminManager.singleLogOut(realm, user.getLoginName());
}
// todo manage legal redirects
return Response.status(302).location(UriBuilder.fromUri(redirectUri).build()).build();
}
}.call();
}
@Path("oauth/grant")
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response processOAuth(final MultivaluedMap<String, String> formData) {
return new Transaction() {
protected Response callImpl() {
String code = formData.getFirst("code");
JWSInput input = new JWSInput(code, providers);
boolean verifiedCode = false;
try {
verifiedCode = RSAProvider.verify(input, realm.getPublicKey());
} catch (Exception ignored) {
logger.debug("Failed to verify signature", ignored);
}
if (!verifiedCode) {
securityFailureForward("Illegal access code.");
session.close();
return null;
}
String key = input.readContent(String.class);
AccessCodeEntry accessCodeEntry = tokenManager.getAccessCode(key);
if (accessCodeEntry == null) {
securityFailureForward("Unknown access code.");
session.close();
return null;
}
String redirect = accessCodeEntry.getRedirectUri();
String state = accessCodeEntry.getState();
if (formData.containsKey("cancel")) {
return redirectAccessDenied(redirect, state);
}
return redirectAccessCode(accessCodeEntry, state, redirect);
}
}.call();
}
protected Response redirectAccessDenied(String redirect, String state) {
UriBuilder redirectUri = UriBuilder.fromUri(redirect).queryParam("error", "access_denied");
if (state != null) redirectUri.queryParam("state", state);
Response.ResponseBuilder location = Response.status(302).location(redirectUri.build());
return location.build();
}
@Override
protected Logger getLogger() {
return logger;
}
}