org.jasen.plugins
Class ObfuscatedCharacterScanner

java.lang.Object
  org.jasen.plugins.ObfuscatedCharacterScanner

All Implemented Interfaces:

JasenPlugin

public class ObfuscatedCharacterScanner

extends Object

implements JasenPlugin

This plugin looks at the parser data returned from a parse for occurrences of anomalous character replacments.

Many spam messages will use non-ASCII characters which "look" similar to the standard ASCII version.
For example: The letter 'I' will often be replaced with the pipe symbol '|'

jASEN will detect this and use an appropriate replacement, however it will also record this character misuse

Author:

Jason Polites

Constructor Summary

ObfuscatedCharacterScanner()

Method Summary

void	destroy() Destroys the plugin.
void	init(Properties properties) Initialises the plugin with the given properties
JasenTestResult	test(Jasen engine, javax.mail.internet.MimeMessage rawMessage, JasenMessage parsedMessage, ParserData data, ReceivedHeaderParser parser) Computess the "spamminess" of a message.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ObfuscatedCharacterScanner

public ObfuscatedCharacterScanner()

Method Detail

init

public void init(Properties properties)
          throws JasenException

Description copied from interface: JasenPlugin

Initialises the plugin with the given properties

Specified by:

init in interface JasenPlugin

Parameters:

properties -

Throws:

JasenException

destroy

public void destroy()
             throws JasenException

Description copied from interface: JasenPlugin

Destroys the plugin. This is called when the core jASEN engine is destroyed

Specified by:

destroy in interface JasenPlugin

Throws:

JasenException

test

public JasenTestResult test(Jasen engine,
                            javax.mail.internet.MimeMessage rawMessage,
                            JasenMessage parsedMessage,
                            ParserData data,
                            ReceivedHeaderParser parser)
                     throws JasenException

Description copied from interface: JasenPlugin

Computess the "spamminess" of a message.

Specified by:

test in interface JasenPlugin

Parameters:

engine - A reference to the current engine instance.

rawMessage - The original MimeMessage passed to the engine.

parsedMessage - The parsed JasenMessage returned from the MimeParser.

data - The data returned from the HTML Parser / Tokenizer combination.

parser - The parser used to parse mail headers

Returns:

A JasenTestResult

Throws:

JasenException - If an error occurs while performing the test