/**
* 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.camel.component.netty.http;
import java.io.IOException;
import java.security.Principal;
import java.util.Iterator;
import java.util.Locale;
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 org.apache.camel.util.ObjectHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A base class for {@link SecurityAuthenticator}.
*/
public abstract class SecurityAuthenticatorSupport implements SecurityAuthenticator {
private String name;
private String roleClassNames;
public SecurityAuthenticatorSupport() {
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setRoleClassNames(String roleClassNames) {
this.roleClassNames = roleClassNames;
}
/**
* Is the given principal a role class?
*
* @param principal the principal
* @return <tt>true</tt> if role class, <tt>false</tt> if not
*/
protected boolean isRoleClass(Principal principal) {
if (roleClassNames == null) {
// by default assume its a role when the classname has role in its name
return principal.getClass().getName().toLowerCase(Locale.US).contains("role");
}
// check each role class name if they match the principal class name
Iterator it = ObjectHelper.createIterator(roleClassNames);
while (it.hasNext()) {
String name = it.next().toString().trim();
if (principal.getClass().getName().equals(name)) {
return true;
}
}
return false;
}
@Override
public String getUserRoles(Subject subject) {
StringBuilder sb = new StringBuilder();
for (Principal p : subject.getPrincipals()) {
if (isRoleClass(p)) {
if (sb.length() > 0) {
sb.append(",");
}
sb.append(p.getName());
}
}
if (sb.length() > 0) {
return sb.toString();
} else {
return null;
}
}
/**
* {@link javax.security.auth.callback.CallbackHandler} that provides the username and password.
*/
public static final class HttpPrincipalCallbackHandler implements CallbackHandler {
private static final Logger LOG = LoggerFactory.getLogger(HttpPrincipalCallbackHandler.class);
private final HttpPrincipal principal;
public HttpPrincipalCallbackHandler(HttpPrincipal principal) {
this.principal = principal;
}
@Override
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
for (Callback callback : callbacks) {
LOG.trace("Callback {}", callback);
if (callback instanceof PasswordCallback) {
PasswordCallback pc = (PasswordCallback) callback;
LOG.trace("Setting password on callback {}", pc);
pc.setPassword(principal.getPassword().toCharArray());
} else if (callback instanceof NameCallback) {
NameCallback nc = (NameCallback) callback;
LOG.trace("Setting username on callback {}", nc);
nc.setName(principal.getName());
}
}
}
}
}