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https://issues.apache.org/jira/browse/NUTCH-3087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17903555#comment-17903555
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ASF GitHub Bot commented on NUTCH-3087:
---------------------------------------
HiranChaudhuri commented on PR #845:
URL: https://github.com/apache/nutch/pull/845#issuecomment-2522247755
Does it make sense to decide stripping authority data based on the protocol?
I acknowledge most users want to scan the internet anonymously. But intranets
or users interested to index 'their' content, be it on local or remote servers
will need authority data to be preserved while they have no control over the
protocol. Thus I suspect sometimes it may be required even though https is used.
How about making it configurable, maybe via regexp? This would allow Nutch
users to define the protocol, or the site or ... where to preserve the
authority.
> Nutch crawling inconsistent on URLs with userinfo
> -------------------------------------------------
>
> Key: NUTCH-3087
> URL: https://issues.apache.org/jira/browse/NUTCH-3087
> Project: Nutch
> Issue Type: Bug
> Components: urlnormalizer
> Affects Versions: 1.21
> Reporter: Hiran Chaudhuri
> Priority: Major
> Fix For: 1.21
>
>
> I am trying to scan the URL
> smb://hi...@nas.fritz.box/Documents/Hiran/Monitoring/
> Note the userinfo 'hiran', which is used for authentication on the server.
> (The smb plugin pulls credentials from another configuration file, but this
> is irrelevant here).
> The URL is fetched, parsed, updated in the crawldb and sent to the indexer.
> So far so good. But the outlinks that are detected are of different quality:
> some have the userinfo preserved, some are missing that information.
> Dumping the segment I can see the below data. Note that some of the outlinks
> start with smb://hi...@nas.fritz.box, while others start with
> smb://nas.fritz.box. The impact is that on the next fetch run authentication
> information is missing and the URLs cannot be fetched further.
>
> {code:java}
> Recno:: 0
> URL:: smb://hi...@nas.fritz.box/Documents/Hiran/Monitoring/
> CrawlDatum::
> Version: 7
> Status: 1 (db_unfetched)
> Fetch time: Tue Oct 29 22:56:58 CET 2024
> Modified time: Thu Jan 01 01:00:00 CET 1970
> Retries since fetch: 0
> Retry interval: 86400 seconds (1 days)
> Score: 1.0
> Signature: null
> Metadata:
> _ngt_=1730239026566
> Content::
> Version: -1
> url: smb://hi...@nas.fritz.box/Documents/Hiran/Monitoring/
> base: smb://hi...@nas.fritz.box/Documents/Hiran/Monitoring/.
> contentType: text/html
> metadata: nutch.segment.name=20241029225708 _fst_=33 nutch.crawl.score=1.0
> Content:
> <html><head><title>Index of
> /Documents/Hiran/Monitoring/</title></head><body><h1>Index of
> /Documents/Hiran/Monitoring/</h1><pre><a href=".svn/">.svn/ Tue Oct 24
> 13:32:32 CEST 2017</a>
> <a href="architektur.dia">architektur.dia Mon Feb 22 21:30:33 CET 2010</a>
> <a href="architektur.dia%7E">architektur.dia~ Mon Feb 22 21:20:42 CET
> 2010</a>
> <a href="architektur.png">architektur.png Mon Feb 22 21:34:27 CET 2010</a>
> <a href="deployment.dia">deployment.dia Mon Feb 22 22:56:15 CET 2010</a>
> <a href="deployment.dia%7E">deployment.dia~ Mon Feb 22 22:51:21 CET
> 2010</a>
> <a href="deployment.png">deployment.png Mon Feb 22 23:00:34 CET 2010</a>
> <a href="Monitoring+strategy.odt">Monitoring strategy.odt Fri Aug 01
> 13:38:04 CEST 2014</a>
> </pre></body></html>
> ParseData::
> Version: 5
> Status: success(1,0)
> Title: Index of /Documents/Hiran/Monitoring/
> Outlinks: 5
> outlink: toUrl:
> smb://hi...@nas.fritz.box/Documents/Hiran/Monitoring/architektur.dia anchor:
> architektur.dia Mon Feb 22 21:30:33 CET 2010
> outlink: toUrl:
> smb://nas.fritz.box/Documents/Hiran/Monitoring/architektur.dia~ anchor:
> architektur.dia~ Mon Feb 22 21:20:42 CET 2010
> outlink: toUrl:
> smb://hi...@nas.fritz.box/Documents/Hiran/Monitoring/deployment.dia anchor:
> deployment.dia Mon Feb 22 22:56:15 CET 2010
> outlink: toUrl:
> smb://nas.fritz.box/Documents/Hiran/Monitoring/deployment.dia~ anchor:
> deployment.dia~ Mon Feb 22 22:51:21 CET 2010
> outlink: toUrl:
> smb://hi...@nas.fritz.box/Documents/Hiran/Monitoring/Monitoring+strategy.odt
> anchor: Monitoring strategy.odt Fri Aug 01 13:38:04 CEST 2014
> Content Metadata:
> nutch.segment.name = 20241029225708
> nutch.content.digest = a794c6675cb2f9e460e7771060ed2dfc
> _fst_ = 33
> nutch.crawl.score = 1.0
> Parse Metadata:
> CharEncodingForConversion = windows-1252
> OriginalCharEncoding = windows-1252
> language = en
> CrawlDatum::
> Version: 7
> Status: 65 (signature)
> Fetch time: Tue Oct 29 22:57:25 CET 2024
> Modified time: Thu Jan 01 01:00:00 CET 1970
> Retries since fetch: 0
> Retry interval: 0 seconds (0 days)
> Score: 0.0
> Signature: a794c6675cb2f9e460e7771060ed2dfc
> Metadata:
>
> CrawlDatum::
> Version: 7
> Status: 33 (fetch_success)
> Fetch time: Tue Oct 29 22:57:17 CET 2024
> Modified time: Thu Jan 01 01:00:00 CET 1970
> Retries since fetch: 0
> Retry interval: 86400 seconds (1 days)
> Score: 1.0
> Signature: null
> Metadata:
> _ngt_=1730239026566
> _pst_=success(1), lastModified=0
> Content-Type=text/html
> ParseText::
> Index of /Documents/Hiran/Monitoring/
> Index of /Documents/Hiran/Monitoring/
> .svn/ Tue Oct 24 13:32:32 CEST 2017
> architektur.dia Mon Feb 22 21:30:33 CET 2010
> architektur.dia~ Mon Feb 22 21:20:42 CET 2010
> architektur.png Mon Feb 22 21:34:27 CET 2010
> deployment.dia Mon Feb 22 22:56:15 CET 2010
> deployment.dia~ Mon Feb 22 22:51:21 CET 2010
> deployment.png Mon Feb 22 23:00:34 CET 2010
> Monitoring strategy.odt Fri Aug 01 13:38:04 CEST 2014
> {code}
>
> Addendum: It is ok to have only 5 outlinks from a document with 8 anchors.
> The .svn and the two .png links are ignored. My regex-urlfilter.txt looks
> like this:
> {code:java}
> # skip file: ftp: and mailto: urls
> -^(?:file|ftp|mailto):
> # skip image and other suffixes we can't yet parse
> # for a more extensive coverage use the urlfilter-suffix plugin
> -(?i)\.(?:gif|jpg|png|ico|css|sit|eps|wmf|zip|ppt|mpg|xls|gz|rpm|tgz|mov|exe|jpeg|bmp|js)$
> # skip URLs containing certain characters as probable queries, etc.
> -[?*!=]
> # skip URLs with slash-delimited segment that repeats 3+ times, to break loops
> -.*(/[^/]+)/[^/]+\1/[^/]+\1/
> # skip version control internal files
> -(?i)\.(?:git|svn|cvs)$
> # skip recycle bin URLs
> -(?i)/%23recycle/$
> -/\.svn/
> -/\.git/
> # accept anything else
> +.
> {code}
>
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