37 lines
1.8 KiB
Markdown
37 lines
1.8 KiB
Markdown
The apache config documented in [[plugins/po]] has a subtle bug. It works
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until a site gets an index.atom or index.rss file. (Acutally, with po
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enabled, they're called index.en.atom or index.en.rss etc, but the result
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is the same).
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Then, when wget, curl, or w3m is pointed at http://site/, apache serves
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up the rss/atom file rather than the index page.
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Analysis:
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* /etc/mime.types gives mime types to .rss and .atom files
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* `mod_negotiation`'s MultiViews allows any file with a mime type to be
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served up via content negotiation, if the client requests that type.
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* wget etc send `Accept: */*` to accept all content types. Compare
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with firefox, which sends `Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*`
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* So apache has a tie between a html encoded Enlish file, and a rss encoded
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English file and the client has no preference. In a tie, apache will serve up the
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*smallest* file, which tends to be the rss file. (Apache's docs say it uses that
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strange criteria to break ties; see <http://httpd.apache.org/docs/2.0/mod/mod_mime.html#multiviewsmatch>)
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The only way I have found to work around this problem is to remove
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atom and rss from /etc/mime.types. Of course, that has other undesirable
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results.
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I wonder if it would be worth making the po plugin generate apache
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[type map files](http://httpd.apache.org/docs/2.0/mod/mod_negotiation.html#typemaps).
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That should avoid this problem.
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--[[Joey]]
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Update: A non-intrusive fix is to add this to apache configuration.
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This tunes the "quality" of the rss and atom files, in an apparently currently
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undocumented way (though someone on #httpd suggested it should get documented).
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Result is that apache will prefer serving index.html. --[[Joey]] [[done]]
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AddType application/rss+xml;qs=0.8 .rss
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AddType application/atom+xml;qs=0.8 .atom
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