From: Hans van der Meer <havdmeer@ziggo.nl>
To: NTG ConTeXt <ntg-context@ntg.nl>
Subject: Re: Files on a server
Date: Wed, 16 May 2018 13:23:35 +0200 [thread overview]
Message-ID: <D3B195ED-6921-4EAD-8E70-1554A8060EB1@ziggo.nl> (raw)
In-Reply-To: <866b81fb-8850-f813-fc48-ed101772028c@gmail.com>
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I would be satisfied when a returned 404 error code will be handled within a reasonable (configurable) time delay. As for redirection, there I would not mind if it is not included.
Restrictions like that are not a problem for me, because this is for building a pdf that accesses many internet located files. The check on existence is therefore especially meant for spotting missing or misnamed files.
Hans van der Meer
> On 16 May 2018, at 12:41, Henri Menke <henrimenke@gmail.com> wrote:
>
> On 05/16/2018 09:31 PM, Hans van der Meer wrote:
>> I tried to determine the existence of a file on the internet. See the
>> following macro call:
>>
>> % Test if file exists.
>> \edef\theurl{\linkprotocol://\urlbase\xmlatt{#1}{link}\thesuffix}
>> \doiffileelse
>> {\theurl}
>> {\verbose{HVDM-PEV-TEST}{file exists: \theurl}}
>> {\verbose{HVDM-PEV-TEST}{file does not exist: \theurl}}
>>
>> It seems that \doiffileelse always results in true except for local
>> files where nonexistence is correctly handled.
>>
>> For example the following url definitely does not exist but nevertheless
>> \doiffileelse reports its existence:
>> HVDM-PEV-TEST > file exists:
>> http://hansvandermeer.myqnapcloud.com/archive/denhaag/hga-dtb-1869-6040.pdf
>>
>> Is it possible that the \doiffile macros are extended for files on the
>> internet or a correponding set \doifurl is developed?
>
> I'm not speaking for the devs here, but I don't think that this is going
> to be included. It would require that all webpages send proper 404
> codes and timeout after reasonable delay. Also how would you handle
> redirects? Should the ConTeXt run be stalled because checking for a
> files existence on the web is caught in a redirect loop?
>
>>
>> Hans van der Meer
>>
>>
>>
>> ___________________________________________________________________________________
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>>
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>>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl <mailto:ntg-context@ntg.nl> / http://www.ntg.nl/mailman/listinfo/ntg-context <http://www.ntg.nl/mailman/listinfo/ntg-context>
> webpage : http://www.pragma-ade.nl <http://www.pragma-ade.nl/> / http://context.aanhet.net <http://context.aanhet.net/>
> archive : https://bitbucket.org/phg/context-mirror/commits/ <https://bitbucket.org/phg/context-mirror/commits/>
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> ___________________________________________________________________________________
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
next prev parent reply other threads:[~2018-05-16 11:23 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-16 9:31 Hans van der Meer
2018-05-16 10:41 ` Henri Menke
2018-05-16 11:23 ` Hans van der Meer [this message]
2018-05-16 11:45 ` Henri Menke
2018-05-16 12:23 ` Taco Hoekwater
2018-05-16 12:58 ` Hans van der Meer
2018-05-16 13:41 ` Hans Hagen
2018-05-16 14:05 ` Taco Hoekwater
2018-05-17 7:32 ` Ulrike Fischer
2018-05-17 7:39 ` Taco Hoekwater
2018-05-17 7:52 ` Hans van der Meer
2018-05-17 7:54 ` Taco Hoekwater
2018-05-17 8:30 ` Ulrike Fischer
2018-05-17 8:42 ` Hans Hagen
2018-05-17 8:46 ` luigi scarso
2018-05-17 8:20 ` Ulrike Fischer
2018-05-17 8:31 ` Taco Hoekwater
2018-05-17 9:03 ` Taco Hoekwater
2018-05-17 9:49 ` Henri Menke
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