Some managed hosts (WPE and various resellers, plus some clients' own ops
teams) don't let us edit wp-config.php. Add a settings-screen alternative
so the plugin can be configured without touching filesystem constants.
Storage + resolution:
- Two new options: att_hc_api_url and att_hc_api_key, autoload=false on
the key so it isn't loaded on every request.
- ATT_HC_Api::url() and ATT_HC_Api::key() are the single source of truth
now — they return the wp-config constant when defined+non-empty, else
the option, else ''. Everything else (request(), config_error(),
is_configured(), the admin config-error notice) uses these accessors.
- url_from_constant() / key_from_constant() drive per-field locking on
the settings page and are also checked by the save handler so a
constant-locked field can't be overridden by a crafted POST.
UI:
- New "Central history server" card at the top of Tools → Site
Healthcheck → Settings with URL (type=url) and API key (type=password)
inputs. When a constant is defined the field is disabled with a
"Set via <constant> constant" hint.
- Separate form action/nonce (att_hc_save_api_settings) so it doesn't
tangle with the existing Gitea recovery save.
- The blocking config-error notice on the main page now offers an
"Open settings" button alongside the wp-config.php snippet.
Verified with an 18-assertion test suite covering no-config, options-
only, http-blocked-with-clear-message, loopback-http-allowed, and
constant-wins-over-option. Both PHP 8.3 and PHP 7.4 parse cleanly.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>