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/*******************************************************************************
* Copyright (c) 2010, 2015 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.help.internal.base.remote;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
public class HttpsUtility {
private static final String PATH_TOC = "/toc"; //$NON-NLS-1$
private static final String PARAM_LANG = "lang"; //$NON-NLS-1$
private final static int SOCKET_TIMEOUT = 5000; //milliseconds
public static HttpsURLConnection getConnection(URL httpsURL)
{
try
{
SSLContext sc = SSLContext.getInstance("TLS"); //$NON-NLS-1$
sc.init( null, null, new java.security.SecureRandom() );
HttpsURLConnection con = (HttpsURLConnection)httpsURL.openConnection();
con.setSSLSocketFactory(sc.getSocketFactory());
return con;
}
catch(Exception e)
{
e.printStackTrace();
return null;
}
}
public static InputStream getHttpsStream(URL httpsURL)
{
try {
HttpsURLConnection con = getConnection(httpsURL);
return con==null ? null : con.getInputStream();
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public static InputStream getHttpsInputStream(String thisProtocol,String thisHost, String thisPort, String thisPath, String locale)
{
try {
URL url = new URL(thisProtocol, thisHost, Integer.valueOf(thisPort) .intValue(),
thisPath + PATH_TOC + '?' + PARAM_LANG + '=' + locale);
return getHttpsStream(url);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public static URL getHttpsURL(String thisProtocol,String thisHost, int thisPort, String thisPath)
{
try {
return new URL(thisProtocol, thisHost, Integer.valueOf(thisPort) .intValue(),
thisPath + PATH_TOC);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public static URL getHttpsURL(String urlPath)
{
try {
return new URL(urlPath);
} catch (MalformedURLException e) {
e.printStackTrace();
return null;
}
}
public static URL getHttpsURL(String thisProtocol,String thisHost, String thisPort, String thisPath)
{
return getHttpsURL(thisProtocol,thisHost,Integer.parseInt(thisPort),thisPath);
}
public static boolean canConnectToHttpsURL(String urlConnection)
{
try
{
HttpsURLConnection testConnection = getConnection(new URL(urlConnection));
testConnection.setConnectTimeout(SOCKET_TIMEOUT);
testConnection.connect();
}
catch (Exception e) {
return false;
}
return true;
}
}
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