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Re: extract http headers from CONNECT / bumped ssl?

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Fyi, the 3.5.x docs is where I learned that format:

http://www.squid-cache.org/Versions/v3/3.5/cfgman/external_acl_type.html


--
Aaron Turner
https://synfin.net/         Twitter: @synfinatic
My father once told me that respect for the truth comes close to being
the basis for all morality.  "Something cannot emerge from nothing,"
he said.  This is profound thinking if you understand how unstable
"the truth" can be.  -- Frank Herbert, Dune


On Fri, Aug 25, 2017 at 1:35 AM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote:
> On 25/08/17 15:37, Alex Rousskov wrote:
>>
>> On 08/24/2017 06:31 PM, Aaron Turner wrote:
>>
>>> Actually, looks like I was misunderstanding the access.log, it was
>>> working:
>>>
>>> 1503620688.280      0 10.93.3.85 TAG_NONE/200 0 CONNECT synfin.net:443
>>> - HIER_NONE/- - ip_index=0,client=-
>>> 1503620689.241    947 10.93.3.85 TCP_MISS/200 57810 GET
>>> https://synfin.net/sock_stream/ - HIER_DIRECT/45.79.73.39 text/html
>>> ip_index=2,client=foobar1
>>>
>>> I didn't initially understand that each CONNECT then generates a
>>> second entry.
>>
>>
>> Each bumped CONNECT tunnel generates one or two CONNECT entries
>> (depending on the configuration) followed by zero or more HTTP requests
>> found inside the decrypted tunnel.
>>
>>
>>>>> external_acl_type client_ip_map_0 %>{My-Custom-Client-Id}
>>>>> /usr/lib64/squid/user_loadbalance.py 0 4
>>
>>
>>>> That is not your actual external_acl_type line, I hope. The %>h part
>>>> looks malformed.
>>
>>
>>> Really?  Works and seems to match the instructions indicating
>>> "%>{Header}"
>>
>>
>> If some instructions imply that omitting "h" from "%>h" is a good idea,
>> then I do not recommend following them, even if omiting "h" works.
>>
>> The {header-field-name} parameter is fine. It is the missing "h" that I
>> would worry about.
>
>
>
> FWIW: The non-h forms are only accepted by current Squid-3 for backward
> compatibility and should be producing a high level WARNING on use. That has
> been removed with Squid-4.
>  (thanks for the reminder I'm going to have to mention that in the release
> notes).
>
>
> Please run "squid -k parse" and fix any config problems it highlights. This
> command should be used after upgrades and when editing the config to make
> sure it will actually do what you want in production.
>
>
> Amos
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