AccessControl: Add endpoint to get user permissions (#45309)

* AccessControl: Add endpoint to get user permissions

Co-authored-by: ievaVasiljeva <ieva.vasiljeva@grafana.com>
Co-authored-by: Kalle Persson <kalle.persson@grafana.com>
Co-authored-by: Eric Leijonmarck <eric.leijonmarck@gmail.com>
Co-authored-by: Alexander Zobnin <alexanderzobnin@gmail.com>

* Fix SA tests

* Linter is wrong :p

* Wait I was wrong

* Adding the route for teams:creator too

Co-authored-by: ievaVasiljeva <ieva.vasiljeva@grafana.com>
Co-authored-by: Kalle Persson <kalle.persson@grafana.com>
Co-authored-by: Eric Leijonmarck <eric.leijonmarck@gmail.com>
Co-authored-by: Alexander Zobnin <alexanderzobnin@gmail.com>

pkg/services/accesscontrol/api/api.go

@@ -0,0 +1,34 @@
+package api
+
+import (
+	"net/http"
+
+	"github.com/grafana/grafana/pkg/api/response"
+	"github.com/grafana/grafana/pkg/api/routing"
+	"github.com/grafana/grafana/pkg/middleware"
+	"github.com/grafana/grafana/pkg/models"
+	ac "github.com/grafana/grafana/pkg/services/accesscontrol"
+)
+
+type AccessControlAPI struct {
+	RouteRegister routing.RouteRegister
+	AccessControl ac.AccessControl
+}
+
+func (api *AccessControlAPI) RegisterAPIEndpoints() {
+	// Users
+	api.RouteRegister.Get("/api/access-control/user/permissions",
+		middleware.ReqSignedIn, routing.Wrap(api.getUsersPermissions))
+}
+
+// GET /api/access-control/user/permissions
+func (api *AccessControlAPI) getUsersPermissions(c *models.ReqContext) response.Response {
+	reloadCache := c.QueryBool("reloadcache")
+	permissions, err := api.AccessControl.GetUserPermissions(c.Req.Context(),
+		c.SignedInUser, ac.Options{ReloadCache: reloadCache})
+	if err != nil {
+		response.JSON(http.StatusInternalServerError, err)
+	}
+
+	return response.JSON(http.StatusOK, ac.BuildPermissionsMap(permissions))
+}