Hey Robert,
The docs at http://www.squid-cache.org/Doc/config/acl/ states:
acl aclname ssl::server_name_regex [-i] \.foo\.com ...
# regex matches server name obtained from various sources [fast]
Which and I do not know exactly what it means but it will not work with a helper in most cases.
I have found the in the git the next sources:
https://github.com/squid-cache/squid/blob/bf95c10aa95bf8e56d9d8d1545cb5a3aafab0d2c/doc/release-notes/release-3.5.sgml#L414
New types ssl::server_name and ssl::server_name_regex
to match server name from various sources (CONNECT authority name,
TLS SNI domain, or X.509 certificate Subject Name).
Which means that there is a set of checks which the acl does and not just a domain name.
It’s also even possible that the domain name is not know in the CONNECT state of the connection.
If I remember correctly there is a possibility for browsers to use the same exact connection for multiple domains but
I have not seen this yet in production.
With Squid once you bump the connection to HTTP/1.x you can make 100% sure the features of the Host header request.
At Servername.cc ie:
https://github.com/squid-cache/squid/blob/aee3523a768aff4d1e6c1195c4a401b4ef5688a0/src/acl/ServerName.cc#L81
There is a specific logic of what is done and what is matched but I am not sure what would be used in the case of:
*.adobe.com
Certificate SAN.
Specifically This part of the Common Names ie SAN:
https://github.com/squid-cache/squid/blob/aee3523a768aff4d1e6c1195c4a401b4ef5688a0/src/acl/ServerName.cc#L105
which to my understanding points to:
https://github.com/squid-cache/squid/blob/d146da3bfe7083381ae7ab38640cbfd0d2542374/src/ssl/support.cc#L195
doesn’t make any sense to me.( didn’t tried that much to understand)
If someone might be able to make sense of things in a synchronic fashion it would help.
(I do not see any debugs usage there or any helping comment )
Thanks,
Eliezer
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that's the weird thing, when i try this in "ssl::server_name_regex"
you mean escape ie the \ character
On 27.07.22 10:54, robert k Wild wrote:
>think i got it right but just want to double check with you guys
>
>so in my "ssl::server_name" i had
>.adobe.com
>
>that worked but i want to mix normal website and regex websites together so
>i just have one list for all
didn't the above work? AFAIK it should, IIRC domain matching in squid
matches "domain.com" if you check for ".domain.com".
>i now have this for "ssl::server_name_regex"
>^.*adobe.com$
>
>it works, so im guessing its right
the dot should be escaped
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