/**
* @param authentication
* @param msg
* @return
* @throws IOException
*/
public int authenticate(AuthenticationProtocolServer authentication, SshMsgUserAuthRequest msg)
throws IOException {
NativeAuthenticationProvider authImpl = NativeAuthenticationProvider.getInstance();
if (authImpl == null) {
log.error("Cannot perfrom authentication witout native authentication provider");
return AuthenticationProtocolState.FAILED;
}
ByteArrayReader bar = new ByteArrayReader(msg.getRequestData());
boolean changepwd = ((bar.read() == 0) ? false : true);
String password = bar.readString();
String newpassword = null;
if (changepwd) {
newpassword = bar.readString();
try {
if (!authImpl.changePassword(msg.getUsername(), password, newpassword)) {
return AuthenticationProtocolState.FAILED;
}
if (authImpl.logonUser(msg.getUsername(), newpassword)) {
return AuthenticationProtocolState.COMPLETE;
} else {
return AuthenticationProtocolState.FAILED;
}
} catch (PasswordChangeException ex1) {
return AuthenticationProtocolState.FAILED;
}
} else {
try {
if (authImpl.logonUser(msg.getUsername(), password)) {
log.info(msg.getUsername() + " has passed password authentication");
return AuthenticationProtocolState.COMPLETE;
} else {
log.info(msg.getUsername() + " has failed password authentication");
return AuthenticationProtocolState.FAILED;
}
} catch (PasswordChangeException ex) {
SshMsgUserAuthPwdChangeReq reply =
new SshMsgUserAuthPwdChangeReq(
msg.getUsername() + " is required to change password", "");
authentication.sendMessage(reply);
return AuthenticationProtocolState.READY;
}
}
}
/**
* @param bar
* @throws InvalidMessageException
*/
protected void constructMessage(ByteArrayReader bar) throws InvalidMessageException {
try {
cookie = new byte[16];
bar.read(cookie);
supportedKex = loadListFromString(bar.readString());
supportedPK = loadListFromString(bar.readString());
supportedEncryptCS = loadListFromString(bar.readString());
supportedEncryptSC = loadListFromString(bar.readString());
supportedMacCS = loadListFromString(bar.readString());
supportedMacSC = loadListFromString(bar.readString());
supportedCompCS = loadListFromString(bar.readString());
supportedCompSC = loadListFromString(bar.readString());
supportedLangCS = loadListFromString(bar.readString());
supportedLangSC = loadListFromString(bar.readString());
firstKexFollows = (bar.read() == 0) ? false : true;
} catch (IOException ioe) {
throw new InvalidMessageException("Error reading message data: " + ioe.getMessage());
}
}
/**
* @param bar
* @throws java.io.IOException
* @throws com.sshtools.j2ssh.transport.InvalidMessageException DOCUMENT ME!
*/
public void constructMessage(ByteArrayReader bar)
throws java.io.IOException, com.sshtools.j2ssh.transport.InvalidMessageException {
id = bar.readUINT32();
path = bar.readString();
attrs = new FileAttributes(bar);
}