br.org.acessobrasil.silvinha.autenticador.AutenticadorConector.java Source code

Introduction

Here is the source code for br.org.acessobrasil.silvinha.autenticador.AutenticadorConector.java

Source

/*******************************************************************************
 * Copyright 2005, 2006, 2007, 2008 Acessibilidade Brasil
 * Este arquivo  parte do programa ASES - Avaliador e Simulador para AcessibilidadE de Stios
 * O ASES  um software livre; voc pode redistribui-lo e/ou modifica-lo dentro dos termos da Licena Pblica Geral GNU como
 * publicada pela Fundao do Software Livre (FSF); na verso 2 da Licena, ou (na sua opnio) qualquer verso posterior.
 * Este programa  distribuido na esperana que possa ser  util, mas SEM NENHUMA GARANTIA; sem uma garantia implicita de ADEQUAO a qualquer  MERCADO ou APLICAO EM PARTICULAR. Veja a Licena Pblica Geral GNU para maiores detalhes.
 * Voc deve ter recebido uma cpia da Licena Pblica Geral GNU, sob o ttulo "LICENCA.txt", junto com este programa, se no, escreva para a Fundao do Software Livre(FSF) Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *******************************************************************************/

/*******************************************************************************
 * Copyright (c) 2005, 2006, 2007 Acessibilidade Brasil.
 * 
 * This file is part of ASES.
 *
 * ASES is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 * A copy of the license can be found at 
 * http://www.gnu.org/copyleft/lesser.txt.
 *******************************************************************************/

package br.org.acessobrasil.silvinha.autenticador;

import java.io.IOException;
import java.util.Properties;

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.log4j.Logger;

import br.org.acessobrasil.silvinha.entidade.Login;
import br.org.acessobrasil.silvinha.util.PropertyLoader;
import br.org.acessobrasil.silvinha.util.Token;

/**
 * Autenticador para o servidor
 * @author Acessibilidade Brasil.
 */
public class AutenticadorConector {

    private String url;

    private static Logger log = Logger.getLogger("br.org.acessobrasil.silvinha");

    public AutenticadorConector() throws IOException {

        PropertyLoader pl = new PropertyLoader();
        Properties props = pl.loadProperty(this);
        url = props.getProperty("server");
    }

    public AutenticadorConector(String url) {

        this.url = url;
    }

    public boolean autenticarLogin(Login login, String url) {
        this.url = url;
        return autenticarLogin(login);
    }

    public boolean autenticarLogin(Login login) {
        boolean autenticado = false;
        HttpClient client = new HttpClient();
        PostMethod method = new PostMethod(url);
        NameValuePair x1 = new NameValuePair("x1", login.getUser());
        NameValuePair x2 = new NameValuePair("x2", login.getPass());
        method.setRequestBody(new NameValuePair[] { x1, x2 });
        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
                new DefaultHttpMethodRetryHandler(3, false));
        try {
            int statusCode = client.executeMethod(method);

            if (statusCode != HttpStatus.SC_OK) {
                log.error("Method failed: " + method.getStatusLine());
            }

            // Read the response body.
            byte[] responseBody = method.getResponseBody();
            String rb = new String(responseBody).trim();
            // Deal with the response.
            if (rb.startsWith("OK")) {
                autenticado = true;
                String[] rbLines = rb.split("\n");
                Token.setUrl(rbLines[1]);
            }
        } catch (HttpException he) {
            log.error("Fatal protocol violation: " + he.getMessage(), he);
        } catch (IOException ioe) {
            log.error("Fatal transport error: " + ioe.getMessage(), ioe);
        } finally {
            /*
             *  Release the connection.
            */
            method.releaseConnection();
        }

        return autenticado;
    }
}