[jira] [Commented] (TAP5-2436) Dont throw an IllgealArgumentException on illegal chars in the url

["Volker Lamp (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAP5-2436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14681480#comment-14681480 ] 

Volker Lamp commented on TAP5-2436:
-----------------------------------

I agree. A Bad Request response would be correct and useful at the same time.

This would probably be a good way to deal with another thing I see happen in production occasionally: attempts to submit the login form without the formdata parameter.

> Dont throw an IllgealArgumentException on illegal chars in the url
> ------------------------------------------------------------------
>
>                 Key: TAP5-2436
>                 URL: https://issues.apache.org/jira/browse/TAP5-2436
>             Project: Tapestry 5
>          Issue Type: Improvement
>          Components: tapestry-core
>    Affects Versions: 5.4
>            Reporter: quurks
>
> A few days ago some tool tried to find vulnerabilites by checking urls like /pageid=99999' . This lead to dozens of exception reports like 
> Exception type: java.lang.IllegalArgumentException
> Message: Input string 'pageid=99999'' is not valid; the character '=' at position 7 is not valid.
> This should either be a custom exception type, so it can be handled without parsing the IllegalArgumentException message or it should be a 400 - Bad request, which would also allow for a custom error page.



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