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Posted to users@httpd.apache.org by Alex Sink <Al...@Vishay.com> on 2006/08/07 21:56:05 UTC
[users@httpd] Content Negotiation - English zh-TW and Chinese zh-CN
Hi,
Our website correctly handles several languages with content negotiation,
but we wish to direct only our Chinese customers to our simplified Chinese
pages, and have all other Chinese language-tags return English pages. Does
anyone know how to make our Chinese pages only show up for zh-CN browsers?
After reading the Apache manual and the relevant articles, I became
convinced that modifying the following lines would produce the intended
effect:
AddLanguage zh-CN .zh-CN
AddLanguage zh-TW .en (was: AddLanguage zh-TW .zh-TW -- pages that are in
development)
AddLanguage zh .en (was added)
This does work for the Chinese language tag variants, but it completely
breaks our standard English content-negotiation, so we now get German (.de)
pages where we should be getting English pages.(And English is higher in the
language preferences, so I can only guess it reaches rule 8 of content
negotiation, and picks alphabetically)
I got the same results on versions 1.3.24 and 2.0.52 of apache(1.3.24 being
our live machine), and would appreciate any help on getting our Simplified
Chinese pages to the appropriate audience and English pages to other Chinese
viewers.
Thanks,
Alex Sink
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Re: [users@httpd] Content Negotiation - English zh-TW and Chinese zh-CN
Posted by Joshua Slive <js...@gmail.com>.
On 8/7/06, Alex Sink <Al...@vishay.com> wrote:
> We have Simplified Chinese language pages that we wish to serve only to our
> mainland Chinese customers, and have all other variants of Chinese language
> (example: zh-TW or zh-sg) tags default to English.
>
> Or put differently, I want zh* language-tags (from:
> http://www.iana.org/assignments/language-tags) to receive English pages and
> only zh-CN to receive our Simplified Chinese pages.
>
> I did try the fallback as well, but the plain "zh" tag among others would
> still default to Chinese pages for some reason -- even with the:
> "ForceLanguagePriority Prefer Fallback" option. If I try the 'zh-sg' tag it
> defaults to the zh-CH page.
>
> My theory fell along the same lines as the other problem, where it falls
> back to the shortest letter code, zh and then picks the first alphabetical
> choice zh-CH and it never gets to the last step in the apache content
> negotiation where language priority would take effect.
>
> I am unsure if there is a workaround, but this seems like it might have a
> simple fix similar to what you suggested. I have been unable to figure it
> out thus far and would appreciate any additional help.
The fallback to main language tags is described here:
http://httpd.apache.org/docs/2.2/content-negotiation.html#better
There is no way to turn off that behavior.
You could use mod_setenvif or mod_rewrite to set the prefer-language
env variable to en in these cases.
Joshua.
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RE: [users@httpd] Content Negotiation - English zh-TW and Chinese zh-CN
Posted by Alex Sink <Al...@Vishay.com>.
We have Simplified Chinese language pages that we wish to serve only to our
mainland Chinese customers, and have all other variants of Chinese language
(example: zh-TW or zh-sg) tags default to English.
Or put differently, I want zh* language-tags (from:
http://www.iana.org/assignments/language-tags) to receive English pages and
only zh-CN to receive our Simplified Chinese pages.
I did try the fallback as well, but the plain "zh" tag among others would
still default to Chinese pages for some reason -- even with the:
"ForceLanguagePriority Prefer Fallback" option. If I try the 'zh-sg' tag it
defaults to the zh-CH page.
My theory fell along the same lines as the other problem, where it falls
back to the shortest letter code, zh and then picks the first alphabetical
choice zh-CH and it never gets to the last step in the apache content
negotiation where language priority would take effect.
I am unsure if there is a workaround, but this seems like it might have a
simple fix similar to what you suggested. I have been unable to figure it
out thus far and would appreciate any additional help.
Thank you,
Alex Sink
-----Original Message-----
From: jslive@gmail.com [mailto:jslive@gmail.com]On Behalf Of Joshua
Slive
Sent: Monday, August 07, 2006 4:06 PM
To: users@httpd.apache.org
Subject: Re: [users@httpd] Content Negotiation - English zh-TW and
Chinese zh-CN
On 8/7/06, Alex Sink <Al...@vishay.com> wrote:
> Hi,
>
> Our website correctly handles several languages with content negotiation,
> but we wish to direct only our Chinese customers to our simplified Chinese
> pages, and have all other Chinese language-tags return English pages.
Does
> anyone know how to make our Chinese pages only show up for zh-CN browsers?
>
> After reading the Apache manual and the relevant articles, I became
> convinced that modifying the following lines would produce the intended
> effect:
>
> AddLanguage zh-CN .zh-CN
> AddLanguage zh-TW .en (was: AddLanguage zh-TW .zh-TW -- pages that are
in
> development)
>
> AddLanguage zh .en (was added)
>
> This does work for the Chinese language tag variants, but it completely
> breaks our standard English content-negotiation, so we now get German
(.de)
> pages where we should be getting English pages.(And English is higher in
the
> language preferences, so I can only guess it reaches rule 8 of content
> negotiation, and picks alphabetically)
>
> I got the same results on versions 1.3.24 and 2.0.52 of apache(1.3.24
being
> our live machine), and would appreciate any help on getting our Simplified
> Chinese pages to the appropriate audience and English pages to other
Chinese
> viewers.
Your problem report is not all that clear. My understanding is that
you want browsers who send zh-CN in their Accept-Language to get pages
with the .zh-CN extension, but you want browsers who send zh-TW to get
pages with the .en extension. This could be accomplished by marking
the .en pages with two different languages, but I don't believe apache
supports that.
I see two ways to handle this:
1. create a duplicate copy (or even better, a symlink of) the .en page
with the .zh-TW extension and use the standard
AddLanguage zh-TW .zh-TW
config. You'd be lying to the clients about the language, but that
shouldn't be a big deal.
2. Eliminate all references to zh-TW in your config and use
LanguagePriority Prefer Fallback (available only in 2.x)
(and make sure en is high up in your LanguagePriority)
Joshua.
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Re: [users@httpd] Content Negotiation - English zh-TW and Chinese zh-CN
Posted by Joshua Slive <jo...@slive.ca>.
On 8/7/06, Alex Sink <Al...@vishay.com> wrote:
> Hi,
>
> Our website correctly handles several languages with content negotiation,
> but we wish to direct only our Chinese customers to our simplified Chinese
> pages, and have all other Chinese language-tags return English pages. Does
> anyone know how to make our Chinese pages only show up for zh-CN browsers?
>
> After reading the Apache manual and the relevant articles, I became
> convinced that modifying the following lines would produce the intended
> effect:
>
> AddLanguage zh-CN .zh-CN
> AddLanguage zh-TW .en (was: AddLanguage zh-TW .zh-TW -- pages that are in
> development)
>
> AddLanguage zh .en (was added)
>
> This does work for the Chinese language tag variants, but it completely
> breaks our standard English content-negotiation, so we now get German (.de)
> pages where we should be getting English pages.(And English is higher in the
> language preferences, so I can only guess it reaches rule 8 of content
> negotiation, and picks alphabetically)
>
> I got the same results on versions 1.3.24 and 2.0.52 of apache(1.3.24 being
> our live machine), and would appreciate any help on getting our Simplified
> Chinese pages to the appropriate audience and English pages to other Chinese
> viewers.
Your problem report is not all that clear. My understanding is that
you want browsers who send zh-CN in their Accept-Language to get pages
with the .zh-CN extension, but you want browsers who send zh-TW to get
pages with the .en extension. This could be accomplished by marking
the .en pages with two different languages, but I don't believe apache
supports that.
I see two ways to handle this:
1. create a duplicate copy (or even better, a symlink of) the .en page
with the .zh-TW extension and use the standard
AddLanguage zh-TW .zh-TW
config. You'd be lying to the clients about the language, but that
shouldn't be a big deal.
2. Eliminate all references to zh-TW in your config and use
LanguagePriority Prefer Fallback (available only in 2.x)
(and make sure en is high up in your LanguagePriority)
Joshua.
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