org.apache.cxf.transport.servlet.servicelist.ServiceListJAASAuthenticator Maven / Gradle / Ivy
/**
* 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.cxf.transport.servlet.servicelist;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.GeneralSecurityException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.auth.login.AccountException;
import javax.security.auth.login.FailedLoginException;
import javax.security.auth.login.LoginContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.util.Base64Exception;
import org.apache.cxf.common.util.Base64Utility;
import org.apache.cxf.transport.http.blueprint.HttpDestinationBPBeanDefinitionParser;
public class ServiceListJAASAuthenticator {
private static final Logger LOG = LogUtils.getL7dLogger(HttpDestinationBPBeanDefinitionParser.class);
private static final String HEADER_WWW_AUTHENTICATE = "WWW-Authenticate";
private static final String HEADER_AUTHORIZATION = "Authorization";
private static final String AUTHENTICATION_SCHEME_BASIC = "Basic";
private String realm;
public String getRealm() {
return realm;
}
public void setRealm(String realm) {
this.realm = realm;
}
public Object authenticate(final String username, final String password) {
return doAuthenticate(username, password);
}
public Subject doAuthenticate(final String username, final String password) {
try {
Subject subject = new Subject();
LoginContext loginContext = new LoginContext(realm, subject, new CallbackHandler() {
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
for (int i = 0; i < callbacks.length; i++) {
if (callbacks[i] instanceof NameCallback) {
((NameCallback)callbacks[i]).setName(username);
} else if (callbacks[i] instanceof PasswordCallback) {
((PasswordCallback)callbacks[i]).setPassword(password.toCharArray());
} else {
throw new UnsupportedCallbackException(callbacks[i]);
}
}
}
});
loginContext.login();
return subject;
} catch (FailedLoginException e) {
LOG.log(Level.FINE, "Login failed ", e);
return null;
} catch (AccountException e) {
LOG.log(Level.WARNING, "Account failure ", e);
return null;
} catch (GeneralSecurityException e) {
LOG.log(Level.SEVERE, "General Security Exception ", e);
return null;
}
}
public boolean authenticate(HttpServletRequest request, HttpServletResponse response) {
// Return immediately if the header is missing
String authHeader = request.getHeader(HEADER_AUTHORIZATION);
if (authHeader != null && authHeader.length() > 0) {
// Get the authType (Basic, Digest) and authInfo (user/password)
// from the header
authHeader = authHeader.trim();
int blank = authHeader.indexOf(' ');
if (blank > 0) {
String authType = authHeader.substring(0, blank);
String authInfo = authHeader.substring(blank).trim();
if (authType.equalsIgnoreCase(AUTHENTICATION_SCHEME_BASIC)) {
try {
String srcString = base64Decode(authInfo);
int i = srcString.indexOf(':');
String username = srcString.substring(0, i);
String password = srcString.substring(i + 1);
// authenticate
Subject subject = doAuthenticate(username, password);
if (subject != null) {
return true;
}
} catch (Exception e) {
// Ignore
}
}
}
}
// request authentication
try {
response.setHeader(HEADER_WWW_AUTHENTICATE, AUTHENTICATION_SCHEME_BASIC + " realm=\""
+ this.realm + "\"");
response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
response.setContentLength(0);
response.flushBuffer();
} catch (IOException ioe) {
// failed sending the response ... cannot do anything about it
}
// inform HttpService that authentication failed
return false;
}
private static String base64Decode(String srcString) {
byte[] transformed = null;
try {
transformed = Base64Utility.decode(srcString);
return new String(transformed, "ISO-8859-1");
} catch (UnsupportedEncodingException uee) {
return srcString;
} catch (Base64Exception e) {
return srcString;
}
}
}