[jira] Commented: (NUTCH-706) Url regex normalizer

["Dmitry Lihachev (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689385#action_12689385 ] 

Dmitry Lihachev commented on NUTCH-706:
---------------------------------------

I think this must be changed to 

{code:xml}
<regex>
  <pattern>(\?|&amp;)([;_]?((?i)l|j|bv_|ps_)?((?i)s|sid|phpsessid|sessionid|conversationid|sess_id)=.*?)(\?|&amp;|#|$)</pattern>
  <substitution>$1$5</substitution>
</regex>
{code}

> Url regex normalizer
> --------------------
>
>                 Key: NUTCH-706
>                 URL: https://issues.apache.org/jira/browse/NUTCH-706
>             Project: Nutch
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Meghna Kukreja
>            Priority: Minor
>             Fix For: 1.1
>
>
> Hey,
> I encountered the following problem while trying to crawl a site using
> nutch-trunk. In the file regex-normalize.xml, the following regex is
> used to remove session ids:
> <pattern>([;_]?((?i)l|j|bv_)?((?i)sid|phpsessid|sessionid)=.*?)(\?|&amp;|#|$)</pattern>.
> This pattern also transforms a url, such as,
> "&newsId=2000484784794&newsLang=en" into "&new&newsLang=en" (since it
> matches 'sId' in the 'newsId'), which is incorrect and hence does not
> get fetched. This expression needs to be changed to prevent this.
> Thanks,
> Meghna

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