com.axelor.apps.account.ebics.client.HttpRequestSender.java Source code

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Here is the source code for com.axelor.apps.account.ebics.client.HttpRequestSender.java

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/*
 * Copyright (c) 1990-2012 kopiLeft Development SARL, Bizerte, Tunisia
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1 as published by the Free Software Foundation.
 *
 * 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.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * $Id$
 */

package com.axelor.apps.account.ebics.client;

import java.io.IOException;
import java.io.InputStream;
import java.security.KeyStore;
import java.security.cert.Certificate;

import org.apache.commons.httpclient.HostConfiguration;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.InputStreamEntity;
import org.apache.http.impl.client.DefaultHttpClient;

import com.axelor.app.AppSettings;
import com.axelor.apps.account.db.EbicsBank;
import com.axelor.apps.account.ebics.interfaces.ContentFactory;
import com.axelor.apps.account.ebics.service.EbicsCertificateService;
import com.axelor.exception.AxelorException;
import com.axelor.exception.db.IException;
import com.axelor.i18n.I18n;

/**
 * A simple HTTP request sender and receiver.
 * The send returns a HTTP code that should be analyzed
 * before proceeding ebics request response parse.
 *
 * @author hachani
 *
 */
public class HttpRequestSender {

    /**
     * Constructs a new <code>HttpRequestSender</code> with a
     * given ebics session.
     * @param session the ebics session
     */
    public HttpRequestSender(EbicsSession session) {
        this.session = session;
    }

    /**
     * Sends the request contained in the <code>ContentFactory</code>.
     * The <code>ContentFactory</code> will deliver the request as
     * an <code>InputStream</code>.
     *
     * @param request the ebics request
     * @return the HTTP return code
    * @throws AxelorException 
     */
    public final int send(ContentFactory request) throws IOException, AxelorException {
        HttpClient httpClient;
        String proxyConfiguration;
        InputStream input;
        int retCode;

        httpClient = new HttpClient();
        EbicsBank bank = session.getUser().getEbicsPartner().getEbicsBank();
        DefaultHttpClient client = getSecuredHttpClient(EbicsCertificateService.getCertificate(bank, "ssl"));

        proxyConfiguration = AppSettings.get().get("http.proxy.host");

        if (proxyConfiguration != null && !proxyConfiguration.equals("")) {
            HostConfiguration hostConfig;
            String proxyHost;
            int proxyPort;

            hostConfig = httpClient.getHostConfiguration();
            proxyHost = AppSettings.get().get("http.proxy.host").trim();
            proxyPort = Integer.parseInt(AppSettings.get().get("http.proxy.port").trim());
            hostConfig.setProxy(proxyHost, proxyPort);
            if (!AppSettings.get().get("http.proxy.user").equals("")) {
                String user;
                String pwd;
                UsernamePasswordCredentials credentials;
                AuthScope authscope;

                user = AppSettings.get().get("http.proxy.user").trim();
                pwd = AppSettings.get().get("http.proxy.password").trim();
                credentials = new UsernamePasswordCredentials(user, pwd);
                authscope = new AuthScope(proxyHost, proxyPort);
                httpClient.getState().setProxyCredentials(authscope, credentials);
            }
        }

        input = request.getContent();
        retCode = -1;
        HttpPost post = new HttpPost(bank.getUrl());
        ContentType type = ContentType.TEXT_XML;
        HttpEntity entity = new InputStreamEntity(input, retCode, type);
        post.setEntity(entity);
        HttpResponse responseHttp = client.execute(post);
        retCode = responseHttp.getStatusLine().getStatusCode();
        response = new InputStreamContentFactory(responseHttp.getEntity().getContent());
        return retCode;
    }

    private DefaultHttpClient getSecuredHttpClient(Certificate cert) throws AxelorException {

        DefaultHttpClient client = new DefaultHttpClient();

        try {
            KeyStore keystore = KeyStore.getInstance("jks");
            char[] password = "NoPassword".toCharArray();
            keystore.load(null, password);
            keystore.setCertificateEntry("certficate.host", cert);
            Scheme https = new Scheme("https", 443, new SSLSocketFactory(keystore));
            client.getConnectionManager().getSchemeRegistry().register(https);
        } catch (Exception e) {
            e.printStackTrace();
            throw new AxelorException(I18n.get("Error adding certificate"), IException.TECHNICAL);
        }

        return client;
    }

    /**
     * Returns the content factory of the response body
     * @return the content factory of the response.
     */
    public ContentFactory getResponseBody() {
        return response;
    }

    //////////////////////////////////////////////////////////////////
    // DATA MEMBERS
    //////////////////////////////////////////////////////////////////

    private EbicsSession session;
    private ContentFactory response;
}