Android Open Source - sigimera-android-app Login Http Helper

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * Sigimera Crises Information Platform Android Client
 * Copyright (C) 2012 by Sigimera//from   ww w  .  j ava 2  s . c om
 * All Rights Reserved
 * 
 * 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 2 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, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
package org.sigimera.app.android.backend.network;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.json.JSONException;
import org.json.JSONObject;
import org.sigimera.app.android.controller.ApplicationController;
import org.sigimera.app.android.util.Config;

import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.util.Base64;

public class LoginHttpHelper extends AsyncTask<String, Void, Boolean> {

  private final String HOST = Config.getInstance().getWWWHost()
      + "/tokens.json";

  @Override
  protected Boolean doInBackground(String... params) {
    HttpClient httpclient = new MyHttpClient(ApplicationController
        .getInstance().getApplicationContext());
    HttpPost request = new HttpPost(HOST);
    request.addHeader("Host", "api.sigimera.org:443");

    /**
     * Basic Authentication for the auth_token fetching:
     * 
     * Authorization: Basic QWxhZGluOnNlc2FtIG9wZW4=
     */
    StringBuffer authString = new StringBuffer();
    authString.append(params[0]);
    authString.append(":");
    authString.append(params[1]);
    String basicAuthentication = "Basic "
        + Base64.encodeToString(authString.toString().getBytes(),
            Base64.DEFAULT);
    request.addHeader("Authorization", basicAuthentication);

    try {
      HttpResponse result = httpclient.execute(request);

      JSONObject json_response = new JSONObject(
          new BufferedReader(new InputStreamReader(result.getEntity()
              .getContent())).readLine());
      if (json_response.has("auth_token")) {
        SharedPreferences.Editor editor = ApplicationController
            .getInstance().getSharedPreferences().edit();
        editor.putString("auth_token",
            json_response.getString("auth_token"));
        return editor.commit();
      } else if (json_response.has("error")) {
        return false;
      }
    } catch (ClientProtocolException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (JSONException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } finally {
      httpclient.getConnectionManager().shutdown();
    }
    return false;
  }

}

Java Source Code List

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