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Re: Which protocol uses when Stored-ID object returned by Squid?

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On 12/08/2015 11:13 p.m., Yuri Voinov wrote:
> 
> Hi all.
> 
> Stupid question:
> 
> Which protocol uses when Stored-ID object returned by Squid?
> 
> I.e., when I use ssl bump, and use next rules:
> 
> squid.conf:
> 
> acl store_rewrite_list_web url_regex
> ^https?:\/\/(khms|mt)[0-9]+\.google\.[a-z\.]+\/.*
> ^https?:\/\/(kh[0-9]?)+\.google\.[a-z\.]+\/(.*)
> 
> store_id_program /usr/local/squid/libexec/storeid_file_rewrite
> /usr/local/squid/etc/storeid.conf
> store_id_access allow store_rewrite_list_web
> store_id_access allow store_rewrite_list_web_CDN
> store_id_access allow adobe_java_updates
> store_id_access deny all
> 
> and
> 
> ^https?:\/\/(khms[\d]|mt[\d])+\.google\.[a-z\.]+\/(.*)       
> http://gmaps.SQUIDINTERNAL/$1/$2
> ^https?:\/\/(kh[\d]?)+\.google\.[a-z\.]+\/(.*)           
> http://gearth.SQUIDINTERNAL/$1/$2
> 
> in storeid.conf,
> 
> and
> 
> user goes to Google Maps via HTTPS (and map is already Stored-ID),
> 
> how Squid will be output stored object to client?

Using the connection to the client. Whatever protocol that uses...

> Client shows green
> https connection with valid Squid CA. Access.log shows bumped https
> connection.
> 
> HTTP or HTTPS?


Store-ID is not involved with any protocols. It is simply a way to
adjust the internal hash key used to store or lookup objects in the
cache index.


The HTTP/1.0 hash key is URI.

The HTTP/1.1 hash key is URI, or for responses with Vary: header the URI
plus list of all request headers named in the Vary.

With Store-ID the URI is swapped with whatever the StoreID helper outputs.


You could use a Store-ID helper to map like this and it would still work
perfectly fine:

 ^https?:\/\/(khms[\d]|mt[\d])+\.google\.[a-z\.]+\/(.*)
  bwahahahahah@gmaps.SQUIDINTERNAL/$1/$2

 ^https?:\/\/(kh[\d]?)+\.google\.[a-z\.]+\/(.*)
 ohnowhatyagonnado::://gearth.SQUIDINTERNAL/$1/$2


This is why we changed the name from Store-URL to Store-ID when
polishing the feature port from 2.7. Its not a URL, its a cache index ID
string.

Amos
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