/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.mina.proxy.handlers.http.basic;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.mina.core.filterchain.IoFilter.NextFilter;
import org.apache.mina.proxy.ProxyAuthException;
import org.apache.mina.proxy.handlers.http.AbstractAuthLogicHandler;
import org.apache.mina.proxy.handlers.http.HttpProxyConstants;
import org.apache.mina.proxy.handlers.http.HttpProxyRequest;
import org.apache.mina.proxy.handlers.http.HttpProxyResponse;
import org.apache.mina.proxy.session.ProxyIoSession;
import org.apache.mina.proxy.utils.StringUtilities;
import org.apache.mina.util.Base64;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* HttpBasicAuthLogicHandler.java - HTTP Basic authentication mechanism logic handler.
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev: 685703 $, $Date: 2008-08-14 00:14:47 +0200 (Thu, 14 Aug 2008) $
* @since MINA 2.0.0-M3
*/
public class HttpBasicAuthLogicHandler extends AbstractAuthLogicHandler {
private final static Logger logger = LoggerFactory
.getLogger(HttpBasicAuthLogicHandler.class);
public HttpBasicAuthLogicHandler(final ProxyIoSession proxyIoSession)
throws ProxyAuthException {
super(proxyIoSession);
if (request == null || !(request instanceof HttpProxyRequest)) {
throw new IllegalArgumentException(
"request parameter should be a non null HttpProxyRequest instance");
}
HttpProxyRequest req = (HttpProxyRequest) request;
req.checkRequiredProperty(HttpProxyConstants.USER_PROPERTY);
req.checkRequiredProperty(HttpProxyConstants.PWD_PROPERTY);
}
@Override
public void doHandshake(final NextFilter nextFilter)
throws ProxyAuthException {
logger.debug(" doHandshake()");
if (step > 0) {
throw new ProxyAuthException("Authentication request already sent");
}
// Send request
HttpProxyRequest req = (HttpProxyRequest) request;
Map<String, List<String>> headers = req.getHeaders() != null ? req
.getHeaders() : new HashMap<String, List<String>>();
String username = req.getProperties().get(
HttpProxyConstants.USER_PROPERTY);
String password = req.getProperties().get(
HttpProxyConstants.PWD_PROPERTY);
StringUtilities.addValueToHeader(headers, "Proxy-Authorization",
"Basic " + createAuthorization(username, password), true);
StringUtilities.addValueToHeader(headers, "Keep-Alive",
HttpProxyConstants.DEFAULT_KEEP_ALIVE_TIME, true);
StringUtilities.addValueToHeader(headers, "Proxy-Connection",
"keep-Alive", true);
req.setHeaders(headers);
writeRequest(nextFilter, req);
step++;
}
/**
* Computes authorization header value.
*/
public static String createAuthorization(final String username,
final String password) {
return new String(Base64.encodeBase64((username + ":" + password)
.getBytes()));
}
@Override
public void handleResponse(final HttpProxyResponse response)
throws ProxyAuthException {
if (response.getStatusCode() != 407) {
throw new ProxyAuthException("Received error response code ("
+ response.getStatusLine() + ").");
}
}
}