com.sun.syndication.propono.atom.client.GDataAuthStrategy Maven / Gradle / Ivy

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The ROME Propono subproject is a Java class library that supports publishing protocols, specifically the Atom Publishing Protocol and the legacy MetaWeblog API. Propono includes an Atom client library, Atom server framework and a Blog client that supports both Atom protocol and the MetaWeblog API.

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/*
 * Copyright 2009 Dave Johnson (Blogapps project)
 *
 * 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 com.sun.syndication.propono.atom.client;

import com.sun.syndication.propono.utils.ProponoException;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethodBase;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;


public class GDataAuthStrategy implements AuthStrategy {
    private String email;
    private String password;
    private String service;
    private String authToken;

    public GDataAuthStrategy(String email, String password, String service) throws ProponoException {
        this.email = email;
        this.password = password;
        this.service = service;
        init();
    }

    private void init() throws ProponoException {
        try {
            HttpClient httpClient = new HttpClient();
            PostMethod method = new PostMethod("https://www.google.com/accounts/ClientLogin");
            NameValuePair[] data = {
              new NameValuePair("Email", email),
              new NameValuePair("Passwd", password),
              new NameValuePair("accountType", "GOOGLE"),
              new NameValuePair("service", service),
              new NameValuePair("source", "ROME Propono Atompub Client")
            };
            method.setRequestBody(data);
            httpClient.executeMethod(method);

            String responseBody = method.getResponseBodyAsString();
            int authIndex = responseBody.indexOf("Auth=");

            authToken = "GoogleLogin auth=" + responseBody.trim().substring(authIndex + 5);

        } catch (Throwable t) {
            t.printStackTrace();
            throw new ProponoException("ERROR obtaining Google authentication string", t);
        }
    }

    public void addAuthentication(HttpClient httpClient, HttpMethodBase method) throws ProponoException {
        httpClient.getParams().setAuthenticationPreemptive(true);
        method.setRequestHeader("Authorization", authToken);
    }
}