org.acegisecurity.captcha
Class CaptchaChannelProcessorTemplate

java.lang.Object
  org.acegisecurity.captcha.CaptchaChannelProcessorTemplate

All Implemented Interfaces:

ChannelProcessor, InitializingBean

Direct Known Subclasses:

AlwaysTestAfterMaxRequestsCaptchaChannelProcessor, AlwaysTestAfterTimeInMillisCaptchaChannelProcessor, AlwaysTestBelowAverageTimeInMillisBetweenRequestsChannelProcessor, TestOnceAfterMaxRequestsCaptchaChannelProcessor

public abstract class CaptchaChannelProcessorTemplate
extends Object
implements ChannelProcessor, InitializingBean

CaptchaChannel template : Ensures the user has enough human privileges by review of the CaptchaSecurityContext and using an abstract routine isContextValidConcerningHumanity(CaptchaSecurityContext) (implemented by sub classes)

The component uses 2 main parameters for its configuration :

• a keyword to be mapped to urls in the ChannelProcessingFilter configuration
  default value provided by sub classes.
• and a thresold : used by the routine isContextValidConcerningHumanity(CaptchaSecurityContext) to evaluate whether the CaptchaSecurityContext is valid default value = 0

Version:

$Id: CaptchaChannelProcessorTemplate.java,v 1.2 2005/11/17 00:55:49 benalex Exp $

Author:

marc antoine Garrigue

Field Summary

protected org.apache.commons.logging.Log

logger

Constructor Summary

CaptchaChannelProcessorTemplate()

Method Summary

void	afterPropertiesSet() Verify if entryPoint and keyword are ok
void	decide(FilterInvocation invocation, ConfigAttributeDefinition config) Decided whether the presented FilterInvocation provides the appropriate level of channel security based on the requested ConfigAttributeDefinition.
ChannelEntryPoint	getEntryPoint()
String	getKeyword()
int	getThresold()
void	setEntryPoint(ChannelEntryPoint entryPoint)
void	setKeyword(String keyword)
void	setThresold(int thresold)
boolean	supports(ConfigAttribute attribute) Indicates whether this ChannelProcessor is able to process the passed ConfigAttribute.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected org.apache.commons.logging.Log logger

Constructor Detail

CaptchaChannelProcessorTemplate

public CaptchaChannelProcessorTemplate()

Method Detail

setEntryPoint

public void setEntryPoint(ChannelEntryPoint entryPoint)

getEntryPoint

public ChannelEntryPoint getEntryPoint()

setKeyword

public void setKeyword(String keyword)

getKeyword

public String getKeyword()

setThresold

public void setThresold(int thresold)

getThresold

public int getThresold()

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Verify if entryPoint and keyword are ok

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception - if not

decide

public void decide(FilterInvocation invocation,
                   ConfigAttributeDefinition config)
            throws IOException,
                   javax.servlet.ServletException

Description copied from interface: ChannelProcessor

Decided whether the presented FilterInvocation provides the appropriate level of channel security based on the requested ConfigAttributeDefinition.

Specified by:

decide in interface ChannelProcessor

Throws:

IOException

javax.servlet.ServletException

supports

public boolean supports(ConfigAttribute attribute)

Description copied from interface: ChannelProcessor

Indicates whether this ChannelProcessor is able to process the passed ConfigAttribute.

This allows the ChannelProcessingFilter to check every configuration attribute can be consumed by the configured ChannelDecisionManager.

Specified by:

supports in interface ChannelProcessor

Parameters:

attribute - a configuration attribute that has been configured against the ChannelProcessingFilter

Returns:

true if this ChannelProcessor can support the passed configuration attribute