Re: HTML Objects.

From: Nigel Metheringham <>
Date: Mon, 02 Dec 1996 19:26:28 +0000

} wrote:
} >We are trying to do a "small as possible" hack in the squid code. We
} >would like to edit any new HTML object saved in the server cache. Doing
} >so new requests for the same object will receive the edited HTML file.
} >Our
} >idea is to put a small foot-note in the cached HTML files with the date
} >it was cached.
} Does squid use checksums to check if a file has been modified on the web
} server? If so, editing the file will change the checksum, and when squid
} goes to check if the file's changed, it'll come to the conclusion that it has.

No it does not - to calculate the checksum it would need to retreive the
file, which kind of defeats the object of If-Modified-Since cacheing! Its
done on dates alone. If HTTP returned some form of signature in the
header this would help.


[   - Unix Applications Engineer ]
[ *Views expressed here are personal and not supported by PLAnet* ]
[ PLAnet Online : The White House          Tel : +44 113 251 6012 ]
[ Melbourne Street, Leeds LS2 7PS UK.      Fax : +44 113 2345656  ]
Received on Mon Dec 02 1996 - 11:39:19 MST

This archive was generated by hypermail pre-2.1.9 : Tue Dec 09 2003 - 16:33:48 MST