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.jboss.resteasy.spi.HttpRequest;
import org.jboss.resteasy.spi.HttpResponse;
import org.keycloak.representations.AccessTokenResponse;
import org.keycloak.representations.SkeletonKeyToken;
import org.keycloak.representations.idm.CredentialRepresentation;
import org.keycloak.representations.idm.UserRepresentation;
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.messages.Messages;
import org.keycloak.services.models.RealmModel;
import org.keycloak.services.models.RoleModel;
import org.keycloak.services.models.UserCredentialModel;
import org.keycloak.services.models.UserModel;
import org.keycloak.services.resources.flows.Flows;
import org.keycloak.services.resources.flows.OAuthFlows;
import javax.ws.rs.Consumes;
import javax.ws.rs.ForbiddenException;
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.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.NewCookie;
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;
import java.util.StringTokenizer;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class TokenService {
protected static final Logger logger = Logger.getLogger(TokenService.class);
protected RealmModel realm;
protected TokenManager tokenManager;
protected AuthenticationManager authManager = new AuthenticationManager();
@Context
protected Providers providers;
@Context
protected SecurityContext securityContext;
@Context
protected UriInfo uriInfo;
@Context
protected HttpHeaders headers;
@Context
HttpRequest request;
@Context
HttpResponse response;
private ResourceAdminManager resourceAdminManager = new ResourceAdminManager();
public TokenService(RealmModel realm, TokenManager tokenManager) {
this.realm = realm;
this.tokenManager = 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<Response>() {
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<Response>() {
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(@QueryParam("client_id") final String clientId, @QueryParam("scope") final String scopeParam,
@QueryParam("state") final String state, @QueryParam("redirect_uri") final String redirect,
final MultivaluedMap<String, String> formData) {
return new Transaction<Response>() {
protected Response callImpl() {
OAuthFlows oauth = Flows.oauth(realm, request, uriInfo, authManager, tokenManager);
if (!realm.isEnabled()) {
return oauth.forwardToSecurityFailure("Realm not enabled.");
}
UserModel client = realm.getUser(clientId);
if (client == null) {
return oauth.forwardToSecurityFailure("Unknown login requester.");
}
if (!client.isEnabled()) {
return oauth.forwardToSecurityFailure("Login requester not enabled.");
}
String username = formData.getFirst("username");
UserModel user = realm.getUser(username);
if (user == null) {
logger.error("Incorrect user name.");
return Flows.forms(realm, request).setError(Messages.INVALID_USER).setFormData(formData)
.forwardToLogin();
}
if (!user.isEnabled()) {
return oauth.forwardToSecurityFailure("Your account is not enabled.");
}
boolean authenticated = authManager.authenticateForm(realm, user, formData);
if (!authenticated) {
logger.error("Authentication failed");
return Flows.forms(realm, request).setError(Messages.INVALID_PASSWORD).setFormData(formData)
.forwardToLogin();
}
return oauth.processAccessCode(scopeParam, state, redirect, client, user);
}
}.call();
}
@Path("registrations")
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response processRegister(@QueryParam("client_id") final String clientId,
@QueryParam("scope") final String scopeParam, @QueryParam("state") final String state,
@QueryParam("redirect_uri") final String redirect, final MultivaluedMap<String, String> formData) {
return new Transaction<Response>() {
@Override
protected Response callImpl() {
OAuthFlows oauth = Flows.oauth(realm, request, uriInfo, authManager, tokenManager);
if (!realm.isEnabled()) {
return oauth.forwardToSecurityFailure("Realm not enabled");
}
UserModel client = realm.getUser(clientId);
if (client == null) {
return oauth.forwardToSecurityFailure("Unknown login requester.");
}
if (!client.isEnabled()) {
return oauth.forwardToSecurityFailure("Login requester not enabled.");
}
if (!realm.isRegistrationAllowed()) {
return oauth.forwardToSecurityFailure("Registration not allowed");
}
String error = validateRegistrationForm(formData);
if (error != null) {
return Flows.forms(realm, request).setError(error).setFormData(formData).forwardToRegistration();
}
String username = formData.getFirst("username");
UserModel user = realm.getUser(username);
if (user != null) {
return Flows.forms(realm, request).setError(Messages.USERNAME_EXISTS).setFormData(formData)
.forwardToRegistration();
}
user = realm.addUser(username);
String fullname = formData.getFirst("name");
if (fullname != null) {
StringTokenizer tokenizer = new StringTokenizer(fullname, " ");
StringBuffer first = null;
String last = "";
while (tokenizer.hasMoreTokens()) {
String token = tokenizer.nextToken();
if (tokenizer.hasMoreTokens()) {
if (first == null) {
first = new StringBuffer();
} else {
first.append(" ");
}
first.append(token);
} else {
last = token;
}
}
if (first == null)
first = new StringBuffer();
user.setFirstName(first.toString());
user.setLastName(last);
}
user.setEmail(formData.getFirst("email"));
UserCredentialModel credentials = new UserCredentialModel();
credentials.setType(CredentialRepresentation.PASSWORD);
credentials.setValue(formData.getFirst("password"));
realm.updateCredential(user, credentials);
for (RoleModel role : realm.getDefaultRoles()) {
realm.grantRole(user, role);
}
return processLogin(clientId, scopeParam, state, redirect, formData);
}
}.call();
}
@Path("access/codes")
@POST
@Produces("application/json")
public Response accessCodeToToken(final MultivaluedMap<String, String> formData) {
return new Transaction<Response>() {
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<Response>() {
protected Response callImpl() {
OAuthFlows oauth = Flows.oauth(realm, request, uriInfo, authManager, tokenManager);
if (!realm.isEnabled()) {
oauth.forwardToSecurityFailure("Realm not enabled");
return null;
}
UserModel client = realm.getUser(clientId);
if (client == null) {
oauth.forwardToSecurityFailure("Unknown login requester.");
transaction.rollback();
return null;
}
if (!client.isEnabled()) {
oauth.forwardToSecurityFailure("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)) {
oauth.forwardToSecurityFailure("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 oauth.processAccessCode(scopeParam, state, redirect, client, user);
}
return Flows.forms(realm, request).forwardToLogin();
}
}.call();
}
@Path("registrations")
@GET
public Response registerPage(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<Response>() {
protected Response callImpl() {
OAuthFlows oauth = Flows.oauth(realm, request, uriInfo, authManager, tokenManager);
if (!realm.isEnabled()) {
return oauth.forwardToSecurityFailure("Realm not enabled");
}
UserModel client = realm.getUser(clientId);
if (client == null) {
return oauth.forwardToSecurityFailure("Unknown login requester.");
}
if (!client.isEnabled()) {
return oauth.forwardToSecurityFailure("Login requester not enabled.");
}
if (!realm.isRegistrationAllowed()) {
return oauth.forwardToSecurityFailure("Registration not allowed");
}
authManager.expireIdentityCookie(realm, uriInfo);
return Flows.forms(realm, request).forwardToRegistration();
}
}.call();
}
@Path("logout")
@GET
@NoCache
public Response logout(final @QueryParam("redirect_uri") String redirectUri) {
return new Transaction<Response>() {
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<Response>() {
protected Response callImpl() {
OAuthFlows oauth = Flows.oauth(realm, request, uriInfo, authManager, tokenManager);
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) {
return oauth.forwardToSecurityFailure("Illegal access code.");
}
String key = input.readContent(String.class);
AccessCodeEntry accessCodeEntry = tokenManager.getAccessCode(key);
if (accessCodeEntry == null) {
return oauth.forwardToSecurityFailure("Unknown access code.");
}
String redirect = accessCodeEntry.getRedirectUri();
String state = accessCodeEntry.getState();
if (formData.containsKey("cancel")) {
return redirectAccessDenied(redirect, state);
}
return oauth.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();
}
private String validateRegistrationForm(MultivaluedMap<String, String> formData) {
if (isEmpty(formData.getFirst("name"))) {
return Messages.MISSING_NAME;
}
if (isEmpty(formData.getFirst("email"))) {
return Messages.MISSING_EMAIL;
}
if (isEmpty(formData.getFirst("username"))) {
return Messages.MISSING_USERNAME;
}
if (isEmpty(formData.getFirst("password"))) {
return Messages.MISSING_PASSWORD;
}
if (!formData.getFirst("password").equals(formData.getFirst("password-confirm"))) {
return Messages.INVALID_PASSWORD_CONFIRM;
}
return null;
}
private boolean isEmpty(String s) {
return s == null || s.length() == 0;
}
}