Gets http output from URL : Http Connection « Network « Android

1. Android
2. Network
3. Http Connection

Gets http output from URL

    
HTTP Util
/*
 *  radio reddit for android: mobile app to listen to radioreddit.com
 *  Copyright (C) 2011 Bryan Denny
 *  
 *  This file is part of "radio reddit for android"
 *
 *  "radio reddit for android" is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  "radio reddit for android" is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with "radio reddit for android".  If not, see <http://www.gnu.org/licenses/>.
 */

//package net.mandaria.radioreddit.utils;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;

import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;

import android.content.Context;
import android.net.Uri;

public class HTTPUtil
{

  public static String slurp(InputStream in) throws IOException
  {
    StringBuffer out = new StringBuffer();
    byte[] b = new byte[4096];
    for(int n; (n = in.read(b)) != -1;)
    {
      out.append(new String(b, 0, n));
    }
    return out.toString();
  }

  // gets http output from URL
  public static String get(Context c, String url) throws ClientProtocolException, IOException
  {
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    // conn.setRequestProperty("User-Agent", Utils.USER_AGENT);

    // Account a = Account.getActiveAccount(c); // Account is just a class to hold the reddit login cookie
    // if(a != null)
    // {
    // conn.setRequestProperty("Cookie", "reddit_session=" + a.redditSession); // I tried sending cookies in other ways but none worked on Android 2.1 or 2.2 except this
    // }

    String output = HTTPUtil.slurp(conn.getInputStream());
    conn.getInputStream().close();

    return output;
  }

  // posts data to http, gets output from URL
  public static String post(Context c, String url, List<NameValuePair> params) throws ClientProtocolException, IOException
  {
    StringBuilder post = new StringBuilder(); // Using the built in method to post a List<NameValuePair> fails on Android 2.1 / 2.2.... manually post the data
    for(NameValuePair p : params)
    {
      post.append(Uri.encode(p.getName()) + "=" + Uri.encode(p.getValue()) + "&");
    }
    post.deleteCharAt(post.length() - 1); // Remove trailing &

    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setDoOutput(true);
    // conn.setRequestProperty("User-Agent", Utils.USER_AGENT);
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setRequestProperty("Content-Length", Integer.toString(post.length()));

    // Account a = Account.getActiveAccount(c);
    // if(a != null)
    // {
    // conn.setRequestProperty("Cookie", "reddit_session=" + a.redditSession);
    // }

    OutputStream os = conn.getOutputStream();
    os.write(post.toString().getBytes());

    String output = HTTPUtil.slurp(conn.getInputStream());
    conn.getInputStream().close();

    return output;
  }
}

   
    
    
    
  

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