Auth: Add anonymous users view and stats (#78685)

* Add anonymous stats and user table

- anonymous users users page
- add feature toggle `anonymousAccess`
- remove check for enterprise for `Device-Id` header in request
- add anonusers/device count to stats

* promise all, review comments

* make use of promise all settled

* refactoring: devices instead of users

* review comments, moved countdevices to httpserver

* fakeAnonService for tests and generate openapi spec

* do not commit openapi3 and api-merged

* add openapi

* Apply suggestions from code review

Co-authored-by: Alex Khomenko <Clarity-89@users.noreply.github.com>

* formatin

* precise anon devices to avoid confusion

---------

Co-authored-by: Alex Khomenko <Clarity-89@users.noreply.github.com>
Co-authored-by: jguer <me@jguer.space>

pkg/services/anonymous/anonimpl/impl.go

@@ -5,13 +5,16 @@ import (
 	"net/http"
 	"time"
 
+	"github.com/grafana/grafana/pkg/api/routing"
 	"github.com/grafana/grafana/pkg/infra/localcache"
 	"github.com/grafana/grafana/pkg/infra/log"
 	"github.com/grafana/grafana/pkg/infra/network"
 	"github.com/grafana/grafana/pkg/infra/serverlock"
 	"github.com/grafana/grafana/pkg/infra/usagestats"
+	"github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/anonymous"
 	"github.com/grafana/grafana/pkg/services/anonymous/anonimpl/anonstore"
+	"github.com/grafana/grafana/pkg/services/anonymous/anonimpl/api"
 	"github.com/grafana/grafana/pkg/services/authn"
 	"github.com/grafana/grafana/pkg/services/org"
 	"github.com/grafana/grafana/pkg/setting"
@@ -31,7 +34,7 @@ type AnonDeviceService struct {
 
 func ProvideAnonymousDeviceService(usageStats usagestats.Service, authBroker authn.Service,
 	anonStore anonstore.AnonStore, cfg *setting.Cfg, orgService org.Service,
-	serverLockService *serverlock.ServerLockService,
+	serverLockService *serverlock.ServerLockService, accesscontrol accesscontrol.AccessControl, routeRegister routing.RouteRegister,
 ) *AnonDeviceService {
 	a := &AnonDeviceService{
 		log:        log.New("anonymous-session-service"),
@@ -54,6 +57,9 @@ func ProvideAnonymousDeviceService(usageStats usagestats.Service, authBroker aut
 		authBroker.RegisterPostLoginHook(a.untagDevice, 100)
 	}
 
+	anonAPI := api.NewAnonDeviceServiceAPI(cfg, anonStore, accesscontrol, routeRegister)
+	anonAPI.RegisterAPIEndpoints()
+
 	return a
 }
 
@@ -142,6 +148,16 @@ func (a *AnonDeviceService) TagDevice(ctx context.Context, httpReq *http.Request
 	return nil
 }
 
+// ListDevices returns all devices that have been updated between the given times.
+func (a *AnonDeviceService) ListDevices(ctx context.Context, from *time.Time, to *time.Time) ([]*anonstore.Device, error) {
+	return a.anonStore.ListDevices(ctx, from, to)
+}
+
+// CountDevices returns the number of devices that have been updated between the given times.
+func (a *AnonDeviceService) CountDevices(ctx context.Context, from time.Time, to time.Time) (int64, error) {
+	return a.anonStore.CountDevices(ctx, from, to)
+}
+
 func (a *AnonDeviceService) Run(ctx context.Context) error {
 	ticker := time.NewTicker(2 * time.Hour)