Users: Allow specifying user UIDs in params (#95424)

* add user ID API translation

* add uid to user frontend

* use users' UIDs in admin pages

* fix ldapSync page

* use global user search for user by UID

* remove active org filtering

* remove orgID params

pkg/services/user/user.go

@@ -2,6 +2,7 @@ package user
 
 import (
 	"context"
+	"strconv"
 
 	"github.com/grafana/grafana/pkg/registry"
 )
@@ -13,6 +14,7 @@ type Service interface {
 	CreateServiceAccount(context.Context, *CreateUserCommand) (*User, error)
 	Delete(context.Context, *DeleteUserCommand) error
 	GetByID(context.Context, *GetUserByIDQuery) (*User, error)
+	// GetByUID returns a user by UID. This also includes service accounts (identity use only)
 	GetByUID(context.Context, *GetUserByUIDQuery) (*User, error)
 	GetByLogin(context.Context, *GetUserByLoginQuery) (*User, error)
 	GetByEmail(context.Context, *GetUserByEmailQuery) (*User, error)
@@ -28,3 +30,16 @@ type Verifier interface {
 	Start(ctx context.Context, cmd StartVerifyEmailCommand) error
 	Complete(ctx context.Context, cmd CompleteEmailVerifyCommand) error
 }
+
+func UIDToIDHandler(userService Service) func(ctx context.Context, userID string) (string, error) {
+	return func(ctx context.Context, userID string) (string, error) {
+		_, err := strconv.ParseInt(userID, 10, 64)
+		if userID == "" || err == nil {
+			return userID, nil
+		}
+		user, err := userService.GetByUID(ctx, &GetUserByUIDQuery{
+			UID: userID,
+		})
+		return strconv.FormatInt(user.ID, 10), err
+	}
+}