* incapsulates multipleldap logic under one module
* abstracts users upsert and get logic
* changes some of the text error messages and import sort sequence
* heavily refactors the LDAP module – LDAP module now only deals with LDAP related behaviour
* integrates affected auth_proxy module and their tests
* refactoring of the auth_proxy logic
* Feature: add cron setting for the ldap settings
* Move ldap configuration read to special function
* Introduce cron setting (no docs for it yet, pending approval)
* Chore: duplicate ldap module as a service
* Feature: implement active sync
This is very early preliminary implementation of active sync.
There is only one thing that's going right for this code - it works.
Aside from that, there is no tests, error handling, docs, transactions,
it's very much duplicative and etc.
But this is the overall direction with architecture I'm going for
* Chore: introduce login service
* Chore: gradually switch to ldap service
* Chore: use new approach for auth_proxy
* Chore: use new approach along with refactoring
* Chore: use new ldap interface for auth_proxy
* Chore: improve auth_proxy and subsequently ldap
* Chore: more of the refactoring bits
* Chore: address comments from code review
* Chore: more refactoring stuff
* Chore: make linter happy
* Chore: add cron dep for grafana enterprise
* Chore: initialize config package var
* Chore: disable gosec for now
* Chore: update dependencies
* Chore: remove unused module
* Chore: address review comments
* Chore: make linter happy
* Chore: refactor auth proxy
Introduced the helper struct for auth_proxy middleware.
Added couple unit-tests, but it seems "integration" tests already cover
most of the code paths.
Although it might be good idea to test every bit of it, hm.
Haven't refactored the extraction of the header logic that much
Fixes#16147
* Fix: make linters happy
