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* Licensed to the Apache Software Foundation (ASF) under one *
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* 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. *
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package org.apache.james.protocols.pop3.core;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.james.protocols.api.Request;
import org.apache.james.protocols.api.Response;
import org.apache.james.protocols.pop3.POP3Response;
import org.apache.james.protocols.pop3.POP3Session;
/**
* Handles PASS command
*/
public abstract class PassCmdHandler extends RsetCmdHandler {
private final static String COMMAND_NAME ="PASS";
/**
* Handler method called upon receipt of a PASS command.
* Reads in and validates the password.
*
*/
public Response onCommand(POP3Session session, Request request) {
String parameters = request.getArgument();
POP3Response response = null;
if (session.getHandlerState() == POP3Session.AUTHENTICATION_USERSET && parameters != null) {
String passArg = parameters;
if (authenticate(session.getUser(), passArg)) {
try {
MailRepository inbox = mailServer.getUserInbox(session.getUser());
if (inbox == null) {
throw new IllegalStateException("MailServer returned a null inbox for "+session.getUser());
}
session.setUserInbox(inbox);
stat(session);
// Store the ipAddress to use it later for pop before smtp
POP3BeforeSMTPHelper.addIPAddress(session.getRemoteIPAddress());
StringBuilder responseBuffer =
new StringBuilder(64)
.append("Welcome ")
.append(session.getUser());
response = new POP3Response(POP3Response.OK_RESPONSE,responseBuffer.toString());
session.setHandlerState(POP3Session.TRANSACTION);
} catch (RuntimeException e) {
session.getLogger().error("Unexpected error accessing mailbox for "+session.getUser(),e);
response = new POP3Response(POP3Response.ERR_RESPONSE,"Unexpected error accessing mailbox");
session.setHandlerState(POP3Session.AUTHENTICATION_READY);
}
} else {
response = new POP3Response(POP3Response.ERR_RESPONSE, "Authentication failed.");
session.setHandlerState(POP3Session.AUTHENTICATION_READY);
}
} else {
response = new POP3Response(POP3Response.ERR_RESPONSE);
}
return response;
}
protected abstract boolean authenticate(String username, String password);
/**
* @see org.apache.james.api.protocol.CommonCommandHandler#getImplCommands()
*/
public Collection<String> getImplCommands() {
List<String> commands = new ArrayList<String>();
commands.add(COMMAND_NAME);
return commands;
}
}