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Posted to dev@nutch.apache.org by "Sebastian Nagel (JIRA)" <ji...@apache.org> on 2014/05/10 23:58:46 UTC

[jira] [Updated] (NUTCH-926) Redirections from META tag don't get filtered

     [ https://issues.apache.org/jira/browse/NUTCH-926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Nagel updated NUTCH-926:
----------------------------------

    Attachment: NUTCH-926-trunk.patch

Patch for current trunk:
* meta refresh redirects are filtered by Fetcher regarding db.ignore.external.links, so they should also in ParseOutputFormat
* all normalizing and filtering (also by external links) is now delegated to filterNormalize()

> Redirections from META tag don't get filtered
> ---------------------------------------------
>
>                 Key: NUTCH-926
>                 URL: https://issues.apache.org/jira/browse/NUTCH-926
>             Project: Nutch
>          Issue Type: Bug
>          Components: parser
>    Affects Versions: 1.2
>         Environment: gnu/linux centOs
>            Reporter: Marco Novo
>             Fix For: 1.9
>
>         Attachments: NUTCH-926-trunk.patch, ParseOutputFormat.java.patch
>
>
> We have nutch set to crawl a domain urllist and we want to fetch only passed domains (hosts) not subdomains.
> So
> WWW.DOMAIN1.COM
> ..
> ..
> ..
> WWW.RIGHTDOMAIN.COM
> ..
> ..
> ..
> ..
> WWW.DOMAIN.COM
> We sets nutch to:
> NOT FOLLOW EXERNAL LINKS
> During crawling of WWW.RIGHTDOMAIN.COM
> if a page contains
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html>
> <head>
> <title></title>
>     <META http-equiv="refresh" content="0;
>     url=http://WRONG.RIGHTDOMAIN.COM">
> </head>
> <body>
> </body>
> </html>
> Nutch continues to crawl the WRONG subdomains! But it should not do this!!
> During crawling of WWW.RIGHTDOMAIN.COM
> if a page contains
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html>
> <head>
> <title></title>
>     <META http-equiv="refresh" content="0;
>     url=http://WWW.WRONGDOMAIN.COM">
> </head>
> <body>
> </body>
> </html>
> Nutch continues to crawl the WRONG domain! But it should not do this! If that we will spider all the web....
> We think the problem is in org.apache.nutch.parse ParseOutputFormat. We have done a patch so we will attach it



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