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Posted to dev@tapestry.apache.org by "Howard M. Lewis Ship (JIRA)" <ji...@apache.org> on 2014/09/02 01:45:21 UTC
[jira] [Closed] (TAP5-1934) Kaptcha Component throws NPE after
session is expired
[ https://issues.apache.org/jira/browse/TAP5-1934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Howard M. Lewis Ship closed TAP5-1934.
--------------------------------------
Resolution: Fixed
Fix Version/s: 5.4
Assignee: Howard M. Lewis Ship
> Kaptcha Component throws NPE after session is expired
> -----------------------------------------------------
>
> Key: TAP5-1934
> URL: https://issues.apache.org/jira/browse/TAP5-1934
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-kaptcha
> Affects Versions: 5.3.2
> Reporter: Petr Charvát
> Assignee: Howard M. Lewis Ship
> Priority: Minor
> Labels: kaptcha
> Fix For: 5.4
>
>
> A have a page with kaptchaField and Kaptcha image - OK.
> The page is renered under URL e.g. http://localhost:8080/myapp/registration - OK.
> But if the bad user (robot) hit url with http://localhost:8080/myapp/registration.kaptcha:image after the session is expired, NPE it thrown - NOK.
> How to protect the page?
> Caused by: org.apache.tapestry5.runtime.ComponentEventException [at context:Registration.tml, line 24]
> at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1130)
> at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$3200(ComponentPageElementImpl.java:61)
> at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1051)
> at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1048)
> at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
> ... 70 more
> Caused by: java.lang.NullPointerException
> at com.google.code.kaptcha.text.impl.DefaultWordRenderer.renderWord(DefaultWordRenderer.java:55)
> at com.google.code.kaptcha.impl.DefaultKaptcha.createImage(DefaultKaptcha.java:43)
> at
> org.apache.tapestry5.kaptcha.internal.services.KaptchaProducerImpl.createImage(KaptchaProducerImpl.java:57)
> at $KaptchaProducer_b9452c5536c8e.createImage(Unknown Source)
> at org.apache.tapestry5.kaptcha.components.KaptchaImage.onImage(KaptchaImage.java:90)
> at org.apache.tapestry5.kaptcha.components.KaptchaImage.dispatchComponentEvent(KaptchaImage.java)
> at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:923)
> at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1106)
> ... 74 more
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