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/*
* Copyright 2023 Daniel Raper (me@danr.uk)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.traccar.database;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.api.resource.SessionResource;
import org.traccar.api.security.LoginService;
import org.traccar.model.User;
import org.traccar.storage.StorageException;
import org.traccar.helper.LogAction;
import org.traccar.helper.ServletHelper;
import java.net.URI;
import java.net.URISyntaxException;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response;
import com.google.inject.Inject;
import com.nimbusds.oauth2.sdk.http.HTTPResponse;
import com.nimbusds.oauth2.sdk.AuthorizationCode;
import com.nimbusds.oauth2.sdk.ResponseType;
import com.nimbusds.oauth2.sdk.Scope;
import com.nimbusds.oauth2.sdk.AuthorizationGrant;
import com.nimbusds.oauth2.sdk.TokenRequest;
import com.nimbusds.oauth2.sdk.TokenResponse;
import com.nimbusds.oauth2.sdk.AuthorizationCodeGrant;
import com.nimbusds.oauth2.sdk.AuthorizationErrorResponse;
import com.nimbusds.oauth2.sdk.ParseException;
import com.nimbusds.oauth2.sdk.AuthorizationResponse;
import com.nimbusds.oauth2.sdk.auth.Secret;
import com.nimbusds.oauth2.sdk.auth.ClientSecretBasic;
import com.nimbusds.oauth2.sdk.auth.ClientAuthentication;
import com.nimbusds.oauth2.sdk.token.BearerAccessToken;
import com.nimbusds.oauth2.sdk.id.State;
import com.nimbusds.oauth2.sdk.id.ClientID;
import com.nimbusds.openid.connect.sdk.OIDCTokenResponse;
import com.nimbusds.openid.connect.sdk.Nonce;
import com.nimbusds.openid.connect.sdk.OIDCTokenResponseParser;
import com.nimbusds.openid.connect.sdk.UserInfoResponse;
import com.nimbusds.openid.connect.sdk.UserInfoRequest;
import com.nimbusds.openid.connect.sdk.AuthenticationRequest;
import com.nimbusds.openid.connect.sdk.claims.UserInfo;
public class OpenIdProvider {
public final Boolean force;
private final ClientID clientId;
private final Secret clientSecret;
private URI callbackUrl;
private URI authUrl;
private URI tokenUrl;
private URI userInfoUrl;
private URI baseUrl;
private final String adminGroup;
private LoginService loginService;
@Inject
public OpenIdProvider(Config config, LoginService loginService) {
force = config.getBoolean(Keys.OPENID_FORCE);
clientId = new ClientID(config.getString(Keys.OPENID_CLIENTID));
clientSecret = new Secret(config.getString(Keys.OPENID_CLIENTSECRET));
this.loginService = loginService;
try {
callbackUrl = new URI(config.getString(Keys.WEB_URL, "") + "/api/session/openid/callback");
authUrl = new URI(config.getString(Keys.OPENID_AUTHURL, ""));
tokenUrl = new URI(config.getString(Keys.OPENID_TOKENURL, ""));
userInfoUrl = new URI(config.getString(Keys.OPENID_USERINFOURL, ""));
baseUrl = new URI(config.getString(Keys.WEB_URL, ""));
} catch (URISyntaxException e) {
}
adminGroup = config.getString(Keys.OPENID_ADMINGROUP);
}
public URI createAuthUri() {
AuthenticationRequest request = new AuthenticationRequest.Builder(
new ResponseType("code"),
new Scope("openid", "profile", "email", "groups"),
clientId,
callbackUrl)
.endpointURI(authUrl)
.state(new State())
.nonce(new Nonce())
.build();
return request.toURI();
}
private OIDCTokenResponse getToken(AuthorizationCode code) {
// Credentials to authenticate us to the token endpoint
ClientAuthentication clientAuth = new ClientSecretBasic(clientId, clientSecret);
AuthorizationGrant codeGrant = new AuthorizationCodeGrant(code, callbackUrl);
TokenRequest request = new TokenRequest(tokenUrl, clientAuth, codeGrant);
TokenResponse tokenResponse;
try {
HTTPResponse tokenReq = request.toHTTPRequest().send();
tokenResponse = OIDCTokenResponseParser.parse(tokenReq);
if (!tokenResponse.indicatesSuccess()) {
return null;
}
return (OIDCTokenResponse) tokenResponse.toSuccessResponse();
} catch (IOException e) {
return null;
} catch (ParseException e) {
return null;
}
}
private UserInfo getUserInfo(BearerAccessToken token) throws IOException, ParseException {
UserInfoResponse userInfoResponse;
HTTPResponse httpResponse = new UserInfoRequest(userInfoUrl, token)
.toHTTPRequest()
.send();
userInfoResponse = UserInfoResponse.parse(httpResponse);
if (!userInfoResponse.indicatesSuccess()) {
// User info request failed - usually from expiring
return null;
}
return userInfoResponse.toSuccessResponse().getUserInfo();
}
public Response handleCallback(URI requestUri, HttpServletRequest request) throws StorageException, ParseException, IOException, WebApplicationException {
AuthorizationResponse response = AuthorizationResponse.parse(requestUri);
if (!response.indicatesSuccess()) {
AuthorizationErrorResponse error = response.toErrorResponse();
throw new WebApplicationException(Response.status(403).entity(error.getErrorObject().getDescription()).build());
}
AuthorizationCode authCode = response.toSuccessResponse().getAuthorizationCode();
if (authCode == null) {
return Response.status(403).entity( "Invalid OpenID Connect callback.").build();
}
OIDCTokenResponse tokens = getToken(authCode);
if (tokens == null) {
return Response.status(403).entity("Unable to authenticate with the OpenID Connect provider. Please try again.").build();
}
BearerAccessToken bearerToken = tokens.getOIDCTokens().getBearerAccessToken();
UserInfo userInfo = getUserInfo(bearerToken);
if (userInfo == null) {
return Response.status(500).entity("Failed to access OpenID Connect user info endpoint. Please contact your administrator.").build();
}
User user = loginService.login(userInfo.getEmailAddress(), userInfo.getName(), userInfo.getStringListClaim("groups").contains(adminGroup));
request.getSession().setAttribute(SessionResource.USER_ID_KEY, user.getId());
LogAction.login(user.getId(), ServletHelper.retrieveRemoteAddress(request));
return Response.seeOther(
baseUrl).build();
}
}
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