[squid-users] squid 7.1 , url_rewrite_program does not work

[Dmitry Melekhov]

20.10.2025 20:22, Amos Jeffries пишет:
> On 20/10/2025 17:12, Dmitry Melekhov wrote:
>> Hello!
>>
>> It is declared as feature now, from 7.2 change log:
>>
>> |- Bug 5504: Document that Squid discards invalid rewrite-url|
>>
>>
>>
>> 18.10.2025 03:32, Matthias Fischer пишет:
>>> Hi,
>>>
>>> I have a similar problem here after upgrading from squid 6.14 to 7.2 
>>> for
>>> testing purposes.
>>>
>>> 'squid -k parse' shows no errors, the same config seems to start 
>>> without
>>> any errors. But redirecting produces errors. Looking in 'cache_log' 
>>> I found:
>>>
>>> ***SNIP***
>>> ...
>>> 2025/10/18 01:07:34 kid1| ERROR: URL-rewrite produces invalid request:
>>> CONNECT
>>> http://[ROUTER_IP_DELETED]:81/redirect.cgi?category=custom_advertising&url=content-loader.com:443&ip=[HOST_IP_DELETED] 
>>>
>>> HTTP/1.1
>>> current master transaction: master53
>>> 2025/10/18 01:07:34 kid1| ERROR: URL-rewrite produces invalid request:
>>> CONNECT http://[ROUTER_IP_DELETED]:81/images/urlfilter/1x1.gif HTTP/1.1
>>> current master transaction: master53
>>> ...
>
> Aha. The helper is being asked to re-write the URI of a CONNECT request.
>
> One needs to understand that CONNECT requests use authority-form URIs, 
> not URLs. So telling Squid to re-write the URI as a URL will not work.
>
>
>>>
>>> So I have the same question. Does 'anyone' has an idea what is 
>>> happening
>>> here and how to solve it?
>>>
>
>
> There are two ways to fix this:
>
> 1) change the helper so that it handles CONNECT requests properly.
>
>  a) produces a valid URI ("OK hostname:port") for the CONNECT to use.
>  b) responds with "ERR" to skip the re-write on CONNECTs
>
> 2) do not send CONNECT requests through the helper.
>
>     url_rewrite_access deny CONNECT
>
>

There is third way- revert change, which breaks rewrites,

this is what I did.


> HTH
> Amos
>
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