public HookResult doRcpt(SMTPSession session, MailAddress sender, MailAddress rcpt) {
if ((wNetworks == null)
|| (!wNetworks.matchInetNetwork(
session.getRemoteAddress().getAddress().getHostAddress()))) {
return super.doRcpt(session, sender, rcpt);
} else {
session
.getLogger()
.info(
"IpAddress "
+ session.getRemoteAddress().getAddress().getHostAddress()
+ " is whitelisted. Skip greylisting.");
}
return new HookResult(HookReturnCode.DECLINED);
}
/**
* @see
* org.apache.james.smtpserver.JamesMessageHook#onMessage(org.apache.james.protocols.smtp.SMTPSession,
* org.apache.mailet.Mail)
*/
public HookResult onMessage(SMTPSession session, Mail mail) {
try {
MimeMessage message = mail.getMessage();
SpamAssassinInvoker sa = new SpamAssassinInvoker(spamdHost, spamdPort);
sa.scanMail(message);
// Add the headers
for (String key : sa.getHeadersAsAttribute().keySet()) {
mail.setAttribute(key, sa.getHeadersAsAttribute().get(key));
}
// Check if rejectionHits was configured
if (spamdRejectionHits > 0) {
try {
double hits = Double.parseDouble(sa.getHits());
// if the hits are bigger the rejectionHits reject the
// message
if (spamdRejectionHits <= hits) {
String buffer =
"Rejected message from "
+ session.getAttachment(SMTPSession.SENDER, State.Transaction).toString()
+ " from host "
+ session.getRemoteAddress().getHostName()
+ " ("
+ session.getRemoteAddress().getAddress().getHostAddress()
+ ") This message reach the spam hits treshold. Required rejection hits: "
+ spamdRejectionHits
+ " hits: "
+ hits;
session.getLogger().info(buffer);
// Message reject .. abort it!
return new HookResult(
HookReturnCode.DENY,
DSNStatus.getStatus(DSNStatus.PERMANENT, DSNStatus.SECURITY_OTHER)
+ " This message reach the spam hits treshold. Please contact the Postmaster if the email is not SPAM. Message rejected");
}
} catch (NumberFormatException e) {
// hits unknown
}
}
} catch (MessagingException e) {
session.getLogger().error(e.getMessage());
}
return new HookResult(HookReturnCode.DECLINED);
}
/**
* Return the service type which will be used in the Received headers.
*
* @param session
* @param heloMode
* @return type
*/
protected String getServiceType(SMTPSession session, String heloMode) {
// Check if EHLO was used
if (EHLO.equals(heloMode)) {
// Not successful auth
if (session.getUser() == null) {
return ESMTP;
} else {
// See RFC3848
// The new keyword "ESMTPA" indicates the use of ESMTP when
// the
// SMTP
// AUTH [3] extension is also used and authentication is
// successfully
// achieved.
return ESMTPA;
}
} else {
return SMTP;
}
}
/** Returns the Received header for the message. */
@SuppressWarnings("unchecked")
@Override
protected Collection<Header> headers(SMTPSession session) {
StringBuilder headerLineBuffer = new StringBuilder();
String heloMode =
(String) session.getAttachment(SMTPSession.CURRENT_HELO_MODE, State.Connection);
String heloName =
(String) session.getAttachment(SMTPSession.CURRENT_HELO_NAME, State.Connection);
// Put our Received header first
headerLineBuffer.append("from ").append(session.getRemoteAddress().getHostName());
if (heloName != null) {
headerLineBuffer.append(" (").append(heloMode).append(" ").append(heloName).append(")");
}
headerLineBuffer
.append(" ([")
.append(session.getRemoteAddress().getAddress().getHostAddress())
.append("])");
Header header = new Header("Received", headerLineBuffer.toString());
headerLineBuffer = new StringBuilder();
headerLineBuffer
.append("by ")
.append(session.getConfiguration().getHelloName())
.append(" (")
.append(session.getConfiguration().getSoftwareName())
.append(") with ")
.append(getServiceType(session, heloMode));
headerLineBuffer.append(" ID ").append(session.getSessionID());
if (((Collection<?>) session.getAttachment(SMTPSession.RCPT_LIST, State.Transaction)).size()
== 1) {
// Only indicate a recipient if they're the only recipient
// (prevents email address harvesting and large headers in
// bulk email)
header.add(headerLineBuffer.toString());
headerLineBuffer = new StringBuilder();
headerLineBuffer
.append("for <")
.append(
((List<MailAddress>) session.getAttachment(SMTPSession.RCPT_LIST, State.Transaction))
.get(0)
.toString())
.append(">;");
} else {
// Put the ; on the end of the 'by' line
headerLineBuffer.append(";");
}
header.add(headerLineBuffer.toString());
headerLineBuffer = new StringBuilder();
headerLineBuffer.append(DATEFORMAT.get().format(new Date()));
header.add(headerLineBuffer.toString());
return Arrays.asList(header);
}