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From "Felix Zett (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NUTCH-2720) ROBOTS metatag ignored when capitalized
Date Thu, 23 May 2019 15:15:00 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-2720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16846773#comment-16846773
] 

Felix Zett commented on NUTCH-2720:
-----------------------------------

Changing the line mentioned to

{{String robotsMeta = parseData.getMeta("metatag.robots");}}

fixes the problem, I don't know if it's the right way to go though.

> ROBOTS metatag ignored when capitalized
> ---------------------------------------
>
>                 Key: NUTCH-2720
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2720
>             Project: Nutch
>          Issue Type: Bug
>          Components: indexer, robots
>    Affects Versions: 1.15
>            Reporter: Felix Zett
>            Priority: Minor
>         Attachments: noindex.html
>
>
> As discussed [on the mailing list|https://www.mail-archive.com/user@nutch.apache.org/msg16516.html],
index-metadata fails to ignore a webpage with a capitalized robots metatag such as {{<META
NAME="ROBOTS" CONTENT="NOINDEX, FOLLOW">}}. This only applies when parse-tika is used.
parse-html will "decapitalize"
> Parsing the attached [^noindex.html] leads to the following results:
> *parse-html:*
> {code:java}
> bin/nutch parsechecker -Dplugin.includes="protocol-httpclient|parse-(html|metatags)|index-metadata"
-Dindexer.delete.robots.noindex="true" -Dmetatags.names="robots" -Dindex.parse.md="metatag.robots"
http://localhost:8080/noindex.html
> Parse Metadata: [...] metatag.robots=noindex,nofollow robots=noindex,nofollow{code}
> *parse-tika:*
> {code:java}
> bin/nutch parsechecker -Dplugin.includes="protocol-httpclient|parse-(tika|metatags)|index-metadata"
-Dindexer.delete.robots.noindex="true" -Dmetatags.names="robots" -Dindex.parse.md="metatag.robots"
http://localhost:8080/noindex.html
> Parse Metadata: metatag.robots=NOINDEX,NOFOLLOW  [...] ROBOTS=NOINDEX,NOFOLLOW [...]{code}
>  
> The field being named "ROBOTS" and not "robots" leads to {{parseData.getMeta("robots")}}
being {{null}} in [https://github.com/apache/nutch/blob/master/src/java/org/apache/nutch/indexer/IndexerMapReduce.java#L257].



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