[jira] [Commented] (NUTCH-2589) HTML redirections are not followed when using parse-tika

["Sebastian Nagel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-2589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495035#comment-16495035 ] 

Sebastian Nagel commented on NUTCH-2589:
----------------------------------------

Hi [~gbouchar], confirmed. Thanks! I've also stumbled about metatags modified/canonicalized by Tika while working on NUTCH-2584. [PR #336|https://github.com/apache/nutch/pull/336] fixes the no-cache and base-href and also fixes the unit test to use the Tika parser to create the DOM tree. I'll extend the PR to contain a fix for this issue as well.

Note that there are other issues related to meta-refresh redirects: NUTCH-685 and NUTCH-2261.

> HTML redirections are not followed when using parse-tika
> --------------------------------------------------------
>
>                 Key: NUTCH-2589
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2589
>             Project: Nutch
>          Issue Type: Bug
>            Reporter: Gerard Bouchar
>            Priority: Major
>
> Html redirections using meta tags are supported in nutch. They work well when using parse-html to parse files. However, when using parse-tika, they are not detected.
> This is because of https://issues.apache.org/jira/browse/TIKA-2652
> Tika emits redirection meta tags as :
> {code:xml}
> <meta name="refresh" content="0; url=http://example.com"/>
> {code}
> whereas org.apache.nutch.parse.tika.HTMLMetaProcessor expects meta tags having the following format :
> {code:xml}
> <meta http-equiv="refresh" content="0; url=http://example.com">
> {code}
> The bug can be reproduced with the following nutch-site.xml:
> {code:xml}
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
>     <property>
>         <name>plugin.includes</name>
>         <value>protocol-http|parse-tika</value>
>     </property>
>     <property>
>         <name>http.agent.name</name>
>         <value>blah</value>
>     </property>
> </configuration>
> {code}
> fetching this url: http://www.google.com/policies/technologies/ads/
> The resulting status is {code}success(1,0){code} whereas using parse-html, the resulting status is {code:html}success(1,100), args[0]=https://policies.google.com/technologies/ads, args[1]=0{code}



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