harshanl
9 years ago
parent
f2b8f978f5
commit
e1da84ec55
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/*
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* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
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*
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* WSO2 Inc. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License.
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* you may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.wso2.carbon.webapp.authenticator.framework.authenticator;
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import com.nimbusds.jose.JOSEException;
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import com.nimbusds.jose.JWSVerifier;
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import com.nimbusds.jose.crypto.RSASSAVerifier;
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import com.nimbusds.jwt.SignedJWT;
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import org.apache.axiom.util.base64.Base64Utils;
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import org.apache.axis2.transport.http.HTTPConstants;
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import org.apache.catalina.connector.Request;
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import org.apache.catalina.connector.Response;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.wso2.carbon.context.PrivilegedCarbonContext;
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import org.wso2.carbon.core.util.KeyStoreManager;
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import org.wso2.carbon.user.api.TenantManager;
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import org.wso2.carbon.user.api.UserStoreException;
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import org.wso2.carbon.user.api.UserStoreManager;
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import org.wso2.carbon.utils.multitenancy.MultitenantConstants;
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import org.wso2.carbon.utils.multitenancy.MultitenantUtils;
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import org.wso2.carbon.webapp.authenticator.framework.DataHolder;
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import org.wso2.carbon.webapp.authenticator.framework.WebappAuthenticator;
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import java.security.interfaces.RSAPublicKey;
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import java.text.ParseException;
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import java.util.StringTokenizer;
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/**
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* This authenticator authenticates HTTP requests using JWT header.
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*/
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public class JWTAuthenticator implements WebappAuthenticator {
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private static final Log log = LogFactory.getLog(JWTAuthenticator.class);
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public static final String SIGNED_JWT_AUTH_USERNAME = "Username";
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private static final String JWT_AUTHENTICATOR = "JWT";
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@Override
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public boolean isAuthenticated(Request request) {
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return false;
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}
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@Override
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public Status authenticate(Request request, Response response) {
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String requestUri = request.getRequestURI();
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if (requestUri == null || "".equals(requestUri)) {
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return Status.CONTINUE;
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}
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StringTokenizer tokenizer = new StringTokenizer(requestUri, "/");
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String context = tokenizer.nextToken();
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if (context == null || "".equals(context)) {
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return Status.CONTINUE;
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}
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if (log.isDebugEnabled()) {
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log.debug("Authenticating using JWT header.");
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}
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//Get the filesystem keystore default primary certificate
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KeyStoreManager keyStoreManager = KeyStoreManager.getInstance(
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MultitenantConstants.SUPER_TENANT_ID);
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try {
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keyStoreManager.getDefaultPrimaryCertificate();
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String authorizationHeader = request.getHeader(HTTPConstants.HEADER_AUTHORIZATION);
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String headerData = decodeAuthorizationHeader(authorizationHeader);
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JWSVerifier verifier =
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new RSASSAVerifier((RSAPublicKey) keyStoreManager.getDefaultPublicKey());
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SignedJWT jwsObject = SignedJWT.parse(headerData);
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if (jwsObject.verify(verifier)) {
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String username = jwsObject.getJWTClaimsSet().getStringClaim(SIGNED_JWT_AUTH_USERNAME);
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String tenantDomain = MultitenantUtils.getTenantDomain(username);
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username = MultitenantUtils.getTenantAwareUsername(username);
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TenantManager tenantManager = DataHolder.getInstance().getRealmService().getTenantManager();
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int tenantId = tenantManager.getTenantId(tenantDomain);
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if (tenantId == -1) {
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log.error("tenantDomain is not valid. username : " + username + ", tenantDomain " +
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": " + tenantDomain);
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return Status.FAILURE;
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}
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UserStoreManager userStore = DataHolder.getInstance().getRealmService().
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getTenantUserRealm(tenantId).getUserStoreManager();
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if (userStore.isExistingUser(username)) {
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PrivilegedCarbonContext ctx = PrivilegedCarbonContext.getThreadLocalCarbonContext();
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ctx.setTenantId(tenantId);
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ctx.setUsername(username);
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return Status.SUCCESS;
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}
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}
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} catch (UserStoreException e) {
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log.error("Error occurred while obtaining the user.", e);
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return Status.FAILURE;
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} catch (ParseException e) {
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log.error("Error occurred while parsing the JWT header.", e);
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return Status.FAILURE;
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} catch (JOSEException e) {
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log.error("Error occurred while verifying the JWT header.", e);
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return Status.FAILURE;
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} catch (Exception e) {
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log.error("Error occurred while verifying the JWT header.", e);
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return Status.FAILURE;
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}
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return Status.CONTINUE;
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}
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private String decodeAuthorizationHeader(String authorizationHeader) {
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String[] splitValues = authorizationHeader.trim().split(" ");
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byte[] decodedBytes = Base64Utils.decode(splitValues[1].trim());
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if (decodedBytes != null) {
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return new String(decodedBytes);
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} else {
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if (log.isDebugEnabled()) {
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log.debug("Error decoding authorization header.");
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}
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return null;
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}
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}
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@Override
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public String getName() {
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return JWTAuthenticator.JWT_AUTHENTICATOR;
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}
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}
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39
components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/internal/WebappAuthenticatorFrameworkBundleActivator.java → components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/internal/WebappAuthenticatorFrameworkServiceComponent.java
39
components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/internal/WebappAuthenticatorFrameworkBundleActivator.java → components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/internal/WebappAuthenticatorFrameworkServiceComponent.java
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