Re: How to get “my” VHOST in code executed by PerPostCon figRequire?

Guten Tag Thorsten Schöning,
am Montag, 5. August 2019 um 19:18 schrieben Sie:

> The problem is that I'm having trouble how to find the VHOST
> currently executing that handler.

The only thing which came into my mind is using environment variables
per VHOST like in the following examples: 

> PerlSetEnv SOME_ID "0c8c1236-86de-4483-9d4b-999e2cfd17c1"
> PerlPostConfigRequire "Some.pm"

Each VHOST gets it's own ID and that environment variable seems to be
uniquely available during execution of the configured package:

> [Mon Aug 05 20:50:32.181559 2019] [:warn] [pid 17736:tid 704] [...]: 0c8c1236-86de-4483-9d4b-999e2cfd17c1: 1
> [Mon Aug 05 20:50:32.836195 2019] [:warn] [pid 17736:tid 704] [...]: 9dc691d6-794a-4095-852e-e596cabf43d5: 1
> [Mon Aug 05 20:50:34.180453 2019] [:warn] [pid 17736:tid 704] [...]: 0c8c1236-86de-4483-9d4b-999e2cfd17c1: 2
> [Mon Aug 05 20:50:34.830098 2019] [:warn] [pid 17736:tid 704] [...]: 9dc691d6-794a-4095-852e-e596cabf43d5: 2

> The logging code:

> my $server = Apache2::ServerUtil->server();
>    $server->warn(__PACKAGE__ . ": $ENV{'SOME_ID'}: " . Apache2::ServerUtil::restart_count());

With that in mind, one can get all VHOSTs and search for the ID they
define. It's important to note that `lookup` is not of much help here,
it doesn't seem to support searching for `PerlSetEnv` directly, but
one needs to implement that on hash refs returned for the VHOSTs
manually:

> my $confTree  = Apache2::Directive::conftree();
> my @vhosts    = $confTree->lookup('VirtualHost');

Each result is a hash ref containing keys and values like the
following:

> $VAR1 = {\n          'PerlSetEnv' => 'AMS_MOD_PERL_PRE_LOADING_ID "9dc691d6-794a-4095-852e-e596cabf43d5"',\n[...]

The structure of the hash ref depends on the actual config, so it
might contain additional child hash refs I guess. Any better ideas
welcome...

Mit freundlichen Grüßen,

Thorsten Schöning

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