com.tianya.ClientMultipartFormPost.java Source code

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Here is the source code for com.tianya.ClientMultipartFormPost.java

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package com.tianya;

/*
 * ====================================================================
 *
 *  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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 * 
 */

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

/**
 * Example how to use multipart/form encoded POST request.
 */
public class ClientMultipartFormPost {

    private static String csrf_token = null;

    public static void main(String[] args) throws Exception {

        /*
         if (args.length != 1)  {
        System.out.println("File path not given");
        System.exit(1);
         }
         */

        HttpClient httpclient = new DefaultHttpClient();
        String posturl = "http://letushow.com/submit";

        preGet(httpclient);

        try {
            HttpPost httppost = new HttpPost(posturl);

            FileBody bin = new FileBody(new File("/Users/gypsai/Desktop/letushow/let.gif"));
            StringBody title = new StringBody("let");

            MultipartEntity reqEntity = new MultipartEntity();
            reqEntity.addPart("imgfile", bin);
            reqEntity.addPart("csrf_token", new StringBody(csrf_token));
            reqEntity.addPart("title", title);
            reqEntity.addPart("type", new StringBody("local"));

            httppost.setEntity(reqEntity);

            System.out.println("executing request " + httppost.getRequestLine());
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity resEntity = response.getEntity();

            System.out.println("----------------------------------------");
            System.out.println(response.getStatusLine());
            if (resEntity != null) {
                // System.out.println("Response content length: " + resEntity.getContentLength());
                System.out.println(iotostring(response.getEntity().getContent()));
            }
            EntityUtils.consume(resEntity);
        } finally {
            try {
                httpclient.getConnectionManager().shutdown();
            } catch (Exception ignore) {
            }
        }
    }

    //get 
    public static void preGet(HttpClient httpClient) throws ClientProtocolException, IOException {
        String url = "http://letushow.com/submit";
        HttpGet getReq = new HttpGet(url);

        HttpResponse res = httpClient.execute(getReq);

        getCsrfToken(res);

        EntityUtils.consume(res.getEntity());
    }

    public static void getCsrfToken(HttpResponse response)
            throws UnsupportedEncodingException, IllegalStateException, IOException {

        if (response != null) {
            Document doc = Jsoup.parse(iotostring(response.getEntity().getContent()));

            csrf_token = doc.getElementsByAttributeValue("name", "csrf_token").get(0).attr("value");

        }

    }

    public static String iotostring(InputStream is) throws UnsupportedEncodingException {

        BufferedReader br = new BufferedReader(new InputStreamReader(is, "utf-8"));
        StringBuffer sb = new StringBuffer();
        String line = "";

        try {
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        //System.out.println(sb.toString());
        return sb.toString();
    }

}