HttpUtility.java

package com.shaweibo.biu.dao;

import android.graphics.Bitmap;
import android.util.Log;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.zip.GZIPInputStream;
import static com.shaweibo.biu.BuildConfig.DEBUG;




public class HttpUtility
{
	private static final String TAG = HttpUtility.class.getSimpleName();
	
	public static final String POST = "POST";
	public static final String GET = "GET";


    public static String doRequest(String url, WeiboParameters params, String method) throws Exception {
		boolean isGet = false;
		if (method.equals(GET)) {
			isGet = true;
		}
		
		String myUrl = url;
		
		String send = params.encode();
		if (isGet) {
			myUrl += "?" + send;
		}
		
		if (DEBUG) {
			Log.d(TAG, "send = " + send);
			Log.d(TAG, "myUrl = " + myUrl);
		}
		
		URL u = new URL(myUrl);
		HttpURLConnection conn = (HttpURLConnection) u.openConnection();
		
		conn.setRequestMethod(method);
		conn.setDoOutput(!isGet);
		
		if (!isGet) {
			conn.setDoInput(true);
		}
		
		conn.setUseCaches(false);
		conn.setConnectTimeout(10000);
		conn.setReadTimeout(10000);
		
		conn.setRequestProperty("Connection", "Keep-Alive");
		conn.setRequestProperty("Charset", "UTF-8");
		
		
		if (send != null) {
			conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
			
			conn.connect();
			
			if (!isGet) {
				DataOutputStream o = new DataOutputStream(conn.getOutputStream());
				
				o.write(send.getBytes());
				o.flush();
				o.close();
			}
			
		} else {
			Object[] r = params.toBoundaryMsg();
			String b = (String) r[0];
			Bitmap bmp = (Bitmap) r[1];
			String s = (String) r[2];
			byte[] bs = ("--" + b + "--\r\n").getBytes("UTF-8");
			
			ByteArrayOutputStream bytes = new ByteArrayOutputStream();
			bmp.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
			byte[] img = bytes.toByteArray();
			
			int l =  s.getBytes("UTF-8").length + img.length + 2 * bs.length;
			
			conn.setRequestProperty("Content-type", "multipart/form-data;boundary=" + b);
			conn.setRequestProperty("Content-Length", String.valueOf(l));
			conn.setFixedLengthStreamingMode(l);
			
			conn.connect();
			
			DataOutputStream o = new DataOutputStream(conn.getOutputStream());
			o.write(s.getBytes("UTF-8"));
			
			o.write(img);
			o.write(bs);
			o.write(bs);
			o.flush();
			o.close();
			
			if (DEBUG) {
				Log.d(TAG, b);
				Log.d(TAG, s);
			}
		}
		
		if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
			return null;
		} else {
			InputStream in = conn.getInputStream();
			
			String en = conn.getContentEncoding();
			
			if (en != null && en.equals("gzip")) {
				in = new GZIPInputStream(in);
			}
			
			BufferedReader buffer = new BufferedReader(new InputStreamReader(in));
			
			String s;
			StringBuilder str = new StringBuilder();
			
			while ((s = buffer.readLine()) != null) {
				str.append(s);
			}
			
			return str.toString();
		}
		
	}
}