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https://issues.apache.org/jira/browse/NUTCH-1031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13546089#comment-13546089
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Ken Krugler commented on NUTCH-1031:
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Based on my reading of the robots.txt RFC ("The robot must obey the first
record in /robots.txt that contains a User-Agent line whose value contains the
name token of the robot as a substring."), this seems like the User-Agent name
(what's in the robots.txt file) is searched for a substring that matches the
robot name token (what the caller is using).
So that means in CC we'd either need to assume that a robot name _never_
contains a comma (and we split the caller-provided name) or we add a new API
where you pass in a list of robot names. Thoughts?
> Delegate parsing of robots.txt to crawler-commons
> -------------------------------------------------
>
> Key: NUTCH-1031
> URL: https://issues.apache.org/jira/browse/NUTCH-1031
> Project: Nutch
> Issue Type: Task
> Reporter: Julien Nioche
> Assignee: Julien Nioche
> Priority: Minor
> Labels: robots.txt
> Fix For: 1.7
>
> Attachments: NUTCH-1031.v1.patch
>
>
> We're about to release the first version of Crawler-Commons
> [http://code.google.com/p/crawler-commons/] which contains a parser for
> robots.txt files. This parser should also be better than the one we currently
> have in Nutch. I will delegate this functionality to CC as soon as it is
> available publicly
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