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https://issues.apache.org/jira/browse/NUTCH-2996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastian Nagel resolved NUTCH-2996.
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Resolution: Implemented
> Use new SimpleRobotRulesParser API entry point (crawler-commons 1.4)
> --------------------------------------------------------------------
>
> Key: NUTCH-2996
> URL: https://issues.apache.org/jira/browse/NUTCH-2996
> Project: Nutch
> Issue Type: Improvement
> Components: robots
> Affects Versions: 1.20
> Reporter: Sebastian Nagel
> Assignee: Sebastian Nagel
> Priority: Major
> Fix For: 1.20
>
>
> Crawler-commons 1.4 (#1085) robots.txt parser (SimpleRobotRulesParser)
> introduces a new [API entry point to parse the robots.txt
> content|https://crawler-commons.github.io/crawler-commons/1.4/crawlercommons/robots/SimpleRobotRulesParser.html#parseContent(java.lang.String,byte%5B%5D,java.lang.String,java.util.Collection)]:
> - it's more efficient by accepting a collection of lower-cased, single-word
> user-agent product tokens, without the need to tokenize a (comma-separated)
> list of user-agent strings again with every robots.txt
> - user-agent matching is compliant with [RFC 9309 (section
> 2.2.1)|https://www.rfc-editor.org/rfc/rfc9309.html#name-the-user-agent-line]
> only if the new API method is used
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