Android Open Source - ivotingverification Http Request

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Back to project page ivotingverification.

License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * Copyright (C) 2013 Eesti Vabariigi Valimiskomisjon 
 * (Estonian National Electoral Committee), www.vvk.ee
 */*  w  w w  . j  a va  2 s .  c  om*/
 * Written in 2013 by AS Finestmedia, www.finestmedia.ee
 * 
 * Vote-verification application for Estonian Internet voting system
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 **/
 
package ee.vvk.ivotingverification.util;

import java.io.IOException;
import java.net.SocketTimeoutException;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;

import android.app.Activity;
import android.content.Context;
import android.util.Log;

public class HttpRequest {
  private static String TAG = "HttpRequest";

  private HttpClient mHttpsClient;
  private Context context;

  public HttpRequest(Context cx) {
    this.context = cx;
    mHttpsClient = new CustomHttpsClient(cx);
  }

  public HttpResponse post(String url,
      List<NameValuePair> headerNameValuePairs,
      List<NameValuePair> entryNameValuePairs) {

    HttpPost post = new HttpPost(url);
    try {
      if (headerNameValuePairs != null && headerNameValuePairs.size() > 0) {
        for (NameValuePair nameValuePair : headerNameValuePairs) {
          post.addHeader(nameValuePair.getName(),
              nameValuePair.getValue());
        }
      }

      post.setEntity(new UrlEncodedFormEntity(entryNameValuePairs));

      if (Util.DEBUGGABLE) {
        printRequestHeaderPOST(post);
      }

      HttpResponse response = mHttpsClient.execute(post);

      if (Util.DEBUGGABLE) {
        printResponseHeader(response);
      }
      return response;

    } catch (ClientProtocolException e) {
      if (Util.DEBUGGABLE) {
        Log.e(TAG, "POST Error (" + e.getMessage() + ") URL: " + url);
      }
      Util.startErrorIntent((Activity) context,
          C.badServerResponseMessage, true);
    } catch (SocketTimeoutException e) {
      if (Util.DEBUGGABLE) {
        Log.e(TAG, "POST Error (" + e.getMessage() + ") URL: " + url);
      }
      Util.startErrorIntent((Activity) context,
          C.badServerResponseMessage, true);
    } catch (IOException e) {
      if (Util.DEBUGGABLE) {
        Log.e(TAG, "POST Error (" + e.getMessage() + ") URL: " + url);
      }
      Util.startErrorIntent((Activity) context,
          C.badServerResponseMessage, true);
    }
    return null;
  }

  public HttpResponse get(String url, List<NameValuePair> headerNameValuePairs) {

    HttpGet get = new HttpGet(url);

    if (headerNameValuePairs != null && headerNameValuePairs.size() > 0) {
      for (NameValuePair nameValuePair : headerNameValuePairs) {
        get.addHeader(nameValuePair.getName(), nameValuePair.getValue());
      }
    }

    if (Util.DEBUGGABLE) {
      printRequestHeaderGET(get);
    }
    try {
      HttpResponse response = mHttpsClient.execute(get);
      if (Util.DEBUGGABLE) {
        printResponseHeader(response);
      }
      return response;

    } catch (ClientProtocolException e) {
      if (Util.DEBUGGABLE) {
        Log.e(TAG, "GET Error (" + e.getMessage() + ") URL: " + url);
      }
      Util.startErrorIntent((Activity) context,
          C.badServerResponseMessage, true);
    } catch (IOException e) {
      if (Util.DEBUGGABLE) {
        Log.e(TAG, "GET Error (" + e.getMessage() + ") URL: " + url);
      }
      Util.startErrorIntent((Activity) context,
          C.badServerResponseMessage, true);
    }
    return null;
  }

  // DEBUG:
  private void printRequestHeaderGET(HttpGet get) {
    System.out.println("Request header. GET: " + get.getURI());
    org.apache.http.Header[] h = get.getAllHeaders();
    for (int i = 0; i < h.length; i++) {
      System.out.println(h[i].getName() + ": " + h[i].getValue());
    }
  }

  private void printRequestHeaderPOST(HttpPost post) {
    System.out.println("Request header. POST:" + post.getURI());
    org.apache.http.Header[] h = post.getAllHeaders();
    for (int i = 0; i < h.length; i++) {
      System.out.println(h[i].getName() + ": " + h[i].getValue());
    }
  }

  private void printResponseHeader(HttpResponse response) {
    System.out.println("Responce header:");
    org.apache.http.Header[] h = response.getAllHeaders();
    for (int i = 0; i < h.length; i++) {
      System.out.println(h[i].getName() + ": " + h[i].getValue());
    }
  }
}

Java Source Code List

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