commons-httpclient3 を使ったgoogle calendar新規作成の実装

gistfile1.java

package withgod;

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.commons.httpclient.params.HttpClientParams;
import org.apache.commons.httpclient.params.HttpMethodParams;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Fizz {
    public static void main(String[] args) throws Exception {
        System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.SimpleLog");
        System.setProperty("org.apache.commons.logging.simplelog.showdatetime", "true");
        System.setProperty("org.apache.commons.logging.simplelog.log.httpclient.wire", "debug");
        System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.commons.httpclient", "debug");
        HttpClient client = new HttpClient();
        PostMethod authReq = new PostMethod("https://www.google.com/accounts/ClientLogin");
        HttpClientParams params = client.getParams();
        params.setBooleanParameter(HttpClientParams.REJECT_RELATIVE_REDIRECT, false); //適当に設定してみた
        params.setBooleanParameter(HttpClientParams.ALLOW_CIRCULAR_REDIRECTS, false);
        params.setIntParameter(HttpClientParams.MAX_REDIRECTS, 10);
        authReq.addParameter("accountType", "GOOGLE");
        authReq.addParameter("Email", "root@example.org");
        authReq.addParameter("Passwd", "password");
        authReq.addParameter("source", "withgod-sample-1");
        authReq.addParameter("service", "cl");

        client.executeMethod(authReq);
        System.out.println(authReq.getStatusLine());
        byte[] responseBody = authReq.getResponseBody();
        String authRet = new String(responseBody);
        String authToken = authRet.split("[\r\n]+")[2].split("=")[1];
        System.out.println("authToken[" + authToken + "]");
        authReq.releaseConnection();
        String reqStr = "<?xml version='1.0' encoding='UTF-8'?><entry xmlns='http://www.w3.org/2005/Atom' xmlns:gAcl='http://schemas.google.com/acl/2007' xmlns:batch='http://schemas.google.com/gdata/batch' xmlns:gCal='http://schemas.google.com/gCal/2005' xmlns:gd='http://schemas.google.com/g/2005'><title>Big League Schedule2</title><atom:summary xmlns:atom='http://www.w3.org/2005/Atom'>xx This calendar contains the practice schedule and game times.</atom:summary><gCal:timezone value='America/Los_Angeles'/><gCal:hidden value='false'/><gCal:color value='#2952A3'/><gd:where rel='' label='' valueString='Oakland'/></entry>";

        PostMethod postReq = new PostMethod("https://www.google.com/calendar/feeds/default/owncalendars/full");
        postReq.addRequestHeader("Accept", "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2");
        postReq.addRequestHeader("Pragma", "no-cache");
        postReq.addRequestHeader("Cache-Control", "no-cache");
        postReq.addRequestHeader("GData-Version", "2.0");
        postReq.addRequestHeader("User-Agent", "withgod-sample-1");
        postReq.addRequestHeader("Authorization", "GoogleLogin auth=" + authToken);
        postReq.setRequestEntity(new StringRequestEntity(reqStr, "application/atom+xml", "UTF-8"));
        postReq.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));
        client.executeMethod(postReq);
        System.out.println(postReq.getStatusLine());
        byte[] responseBody2 = postReq.getResponseBody();
        System.out.println(new String(responseBody2));
        //Location周りが上手く動いてくれないので、自分でレスポンス解析して再投稿してます
        Matcher m = Pattern.compile("HREF=\"([^\"]+)").matcher(new String(responseBody2));
        if (m.find()) {
            PostMethod postReq2 = new PostMethod(m.group(1));
            postReq2.addRequestHeader("Accept", "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2");
            postReq2.addRequestHeader("Pragma", "no-cache");
            postReq2.addRequestHeader("Cache-Control", "no-cache");
            postReq2.addRequestHeader("GData-Version", "2.0");
            postReq2.addRequestHeader("User-Agent", "withgod-sample-1");
            postReq2.addRequestHeader("Authorization", "GoogleLogin auth=" + authToken);
            postReq2.setRequestEntity(new StringRequestEntity(reqStr, "application/atom+xml", "UTF-8"));
            client.executeMethod(postReq2);
            System.out.println(postReq2.getStatusLine());
            byte[] responseBody3 = postReq2.getResponseBody();
            System.out.println(new String(responseBody3));
        }
    }
}