GoogleFormHttpRequest.java

package br.edu.ufcg.ccc.projeto2.warofkingdoms.util;

import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.params.ClientPNames;
import org.apache.http.client.params.CookiePolicy;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;
import org.json.JSONObject;

import android.util.Log;

/*
 * This helper class was created by StackOverflow user: MattC http://stackoverflow.com/users/21126/mattc
 * IT was posted as an Answer to this question: http://stackoverflow.com/questions/2253061/secure-http-post-in-android
 */
public class GoogleFormHttpRequest {

	private static final String LOG_TAG = "GoogleFormHttpRequest";
	DefaultHttpClient httpClient;
	HttpContext localContext;
	private String ret;

	HttpResponse response = null;
	HttpPost httpPost = null;
	HttpGet httpGet = null;

	public GoogleFormHttpRequest() {
		HttpParams myParams = new BasicHttpParams();

		HttpConnectionParams.setConnectionTimeout(myParams, 10000);
		HttpConnectionParams.setSoTimeout(myParams, 10000);
		httpClient = new DefaultHttpClient(myParams);
		localContext = new BasicHttpContext();
	}

	public void clearCookies() {
		httpClient.getCookieStore().clear();
	}

	public void abort() {
		try {
			if (httpClient != null) {
				System.out.println("Abort.");
				httpPost.abort();
			}
		} catch (Exception e) {
			Log.e(LOG_TAG, e.toString());
		}
	}

	public String sendPost(String url, String data) {
		return sendPost(url, data, null);
	}

	public String sendJSONPost(String url, JSONObject data) {
		return sendPost(url, data.toString(), "application/json");
	}

	public String sendPost(String url, String data, String contentType) {
		ret = null;

		httpClient.getParams().setParameter(ClientPNames.COOKIE_POLICY,
				CookiePolicy.RFC_2109);

		httpPost = new HttpPost(url);
		response = null;

		StringEntity tmp = null;

		httpPost.setHeader("User-Agent", "SET YOUR USER AGENT STRING HERE");
		httpPost.setHeader(
				"Accept",
				"text/html,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*;q=0.5");

		if (contentType != null) {
			httpPost.setHeader("Content-Type", contentType);
		} else {
			httpPost.setHeader("Content-Type",
					"application/x-www-form-urlencoded");
		}

		try {
			tmp = new StringEntity(data, "UTF-8");
		} catch (UnsupportedEncodingException e) {
			Log.e(LOG_TAG, "HttpUtils : UnsupportedEncodingException : " + e);
		}

		httpPost.setEntity(tmp);

		try {
			response = httpClient.execute(httpPost, localContext);

			if (response != null) {
				ret = EntityUtils.toString(response.getEntity());
			}
		} catch (Exception e) {
			Log.e(LOG_TAG, "HttpUtils: " + e);
		}

		return ret;
	}

	public String sendGet(String url) {
		httpGet = new HttpGet(url);

		try {
			response = httpClient.execute(httpGet);
		} catch (Exception e) {
			Log.e(LOG_TAG, e.getMessage());
		}

		// int status = response.getStatusLine().getStatusCode();

		// we assume that the response body contains the error message
		try {
			ret = EntityUtils.toString(response.getEntity());
		} catch (IOException e) {
			Log.e(LOG_TAG, e.getMessage());
		}

		return ret;
	}

	public InputStream getHttpStream(String urlString) throws IOException {
		InputStream in = null;
		int response = -1;

		URL url = new URL(urlString);
		URLConnection conn = url.openConnection();

		if (!(conn instanceof HttpURLConnection))
			throw new IOException("Not an HTTP connection");

		try {
			HttpURLConnection httpConn = (HttpURLConnection) conn;
			httpConn.setAllowUserInteraction(false);
			httpConn.setInstanceFollowRedirects(true);
			httpConn.setRequestMethod("GET");
			httpConn.connect();

			response = httpConn.getResponseCode();

			if (response == HttpURLConnection.HTTP_OK) {
				in = httpConn.getInputStream();
			}
		} catch (Exception e) {
			throw new IOException("Error connecting");
		}

		return in;
	}
}