| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.camel.component.gae.auth; |
| |
| import com.google.gdata.client.authn.oauth.GoogleOAuthParameters; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.component.gae.bind.OutboundBinding; |
| |
| /** |
| * Binds {@link GoogleOAuthParameters} to a Camel {@link Exchange}. This binding |
| * is used by <code>gauth:authorize</code> endpoints by default. |
| */ |
| public class GAuthAuthorizeBinding implements OutboundBinding<GAuthEndpoint, GoogleOAuthParameters, GoogleOAuthParameters> { |
| |
| /** |
| * Name of the Camel header defining the access scope. Overrides the scope |
| * parameter defined in a <code>gauth:authorize</code> endpoint URI. |
| */ |
| public static final String GAUTH_SCOPE = "CamelGauthScope"; |
| |
| /** |
| * Name of the Camel header containing a callback URL. Overrides the |
| * callback parameter defined in a <code>gauth:authorize</code> endpoint |
| * URI. |
| */ |
| public static final String GAUTH_CALLBACK = "CamelGauthCallback"; |
| |
| /** |
| * Creates a {@link GoogleOAuthParameters} object from endpoint and |
| * <code>exchange.getIn()</code> data. The created parameter object is |
| * used to fetch an unauthorized request token from Google. |
| * |
| * @param endpoint |
| * @param exchange |
| * @param request |
| * ignored. |
| * @return |
| */ |
| public GoogleOAuthParameters writeRequest(GAuthEndpoint endpoint, Exchange exchange, GoogleOAuthParameters request) { |
| String callback = exchange.getIn().getHeader(GAUTH_CALLBACK, String.class); |
| if (callback == null) { |
| callback = endpoint.getCallback(); |
| } |
| String scope = exchange.getIn().getHeader(GAUTH_SCOPE, String.class); |
| if (scope == null) { |
| scope = endpoint.getScope(); |
| } |
| request = new GoogleOAuthParameters(); |
| request.setOAuthConsumerKey(endpoint.getConsumerKey()); |
| request.setOAuthConsumerSecret(endpoint.getConsumerSecret()); |
| request.setOAuthCallback(callback); |
| request.setScope(scope); |
| return request; |
| } |
| |
| /** |
| * Creates an <code>exchange.getOut()</code> message that represents an HTTP |
| * redirect to Google's OAuth confirmation page. Additionally, if the |
| * {@link GAuthComponent} is configured to use the HMAC_SHA1 signature |
| * method, a cookie is created containing the request token secret. It is |
| * needed later to upgrade an authorized request token to an access token. |
| * |
| * @param endpoint |
| * @param exchange |
| * @param response |
| * @return |
| */ |
| public Exchange readResponse(GAuthEndpoint endpoint, Exchange exchange, GoogleOAuthParameters response) throws Exception { |
| String authrUrl = endpoint.newOAuthHelper().createUserAuthorizationUrl(response); |
| exchange.getOut().setHeaders(exchange.getIn().getHeaders()); |
| exchange.getOut().setHeader(Exchange.HTTP_RESPONSE_CODE, 302); |
| exchange.getOut().setHeader("Location", authrUrl); |
| |
| if (endpoint.getComponent().getKeyLoader() == null) { |
| // HMAC_SHA1 signature is used and this requires a |
| // token secret. Add it to a cookie because it is |
| // later needed for getting an access token. |
| String secret = response.getOAuthTokenSecret(); |
| String cookie = new GAuthTokenSecret(secret).toCookie(); |
| exchange.getOut().setHeader("Set-Cookie", cookie); |
| } |
| return exchange; |
| } |
| |
| } |