RBAC: Remove dashboard guardians pt 2 (#102556)

* remove NewByDashboard guardian

* remove unused authorizer

* more cleanup

* simplify canAdmin evaluation

pkg/api/dashboard.go

@@ -151,9 +151,7 @@ func (hs *HTTPServer) GetDashboard(c *contextmodel.ReqContext) response.Response
 	}
 	deleteEvaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsDelete, dashScope)
 	canDelete, _ := hs.AccessControl.Evaluate(ctx, c.SignedInUser, deleteEvaluator)
-	adminEvaluator := accesscontrol.EvalAll(
-		accesscontrol.EvalPermission(dashboards.ActionDashboardsPermissionsRead, dashScope),
-		accesscontrol.EvalPermission(dashboards.ActionDashboardsPermissionsWrite, dashScope))
+	adminEvaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsPermissionsWrite, dashScope)
 	canAdmin, _ := hs.AccessControl.Evaluate(ctx, c.SignedInUser, adminEvaluator)
 
 	isStarred, err := hs.isDashboardStarredByUser(c, dash.ID)

pkg/registry/apis/dashboard/authorizer.go

@@ -1,91 +0,0 @@
-package dashboard
-
-import (
-	"context"
-
-	"k8s.io/apiserver/pkg/authorization/authorizer"
-
-	claims "github.com/grafana/authlib/types"
-	"github.com/grafana/grafana/pkg/apimachinery/identity"
-	"github.com/grafana/grafana/pkg/infra/log"
-	"github.com/grafana/grafana/pkg/services/dashboards"
-	"github.com/grafana/grafana/pkg/services/guardian"
-)
-
-func GetAuthorizer(dashboardService dashboards.DashboardService, l log.Logger) authorizer.Authorizer {
-	return authorizer.AuthorizerFunc(
-		func(ctx context.Context, attr authorizer.Attributes) (authorized authorizer.Decision, reason string, err error) {
-			// Use the standard authorizer
-			if !attr.IsResourceRequest() {
-				return authorizer.DecisionNoOpinion, "", nil
-			}
-
-			user, err := identity.GetRequester(ctx)
-			if err != nil {
-				return authorizer.DecisionDeny, "", err
-			}
-
-			// Allow search and list requests
-			if attr.GetResource() == "search" || attr.GetName() == "" {
-				return authorizer.DecisionNoOpinion, "", nil
-			}
-
-			ns := attr.GetNamespace()
-			if ns == "" {
-				return authorizer.DecisionDeny, "expected namespace", nil
-			}
-
-			info, err := claims.ParseNamespace(attr.GetNamespace())
-			if err != nil {
-				return authorizer.DecisionDeny, "error reading org from namespace", err
-			}
-
-			// expensive path to lookup permissions for a single dashboard
-			dto, err := dashboardService.GetDashboard(ctx, &dashboards.GetDashboardQuery{
-				UID:   attr.GetName(),
-				OrgID: info.OrgID,
-			})
-			if err != nil {
-				return authorizer.DecisionDeny, "error loading dashboard", err
-			}
-
-			ok := false
-			guardian, err := guardian.NewByDashboard(ctx, dto, info.OrgID, user)
-			if err != nil {
-				return authorizer.DecisionDeny, "", err
-			}
-
-			switch attr.GetVerb() {
-			case "get":
-				ok, err = guardian.CanView()
-				if !ok || err != nil {
-					return authorizer.DecisionDeny, "can not view dashboard", err
-				}
-			case "create":
-				fallthrough
-			case "post":
-				ok, err = guardian.CanSave() // vs Edit?
-				if !ok || err != nil {
-					return authorizer.DecisionDeny, "can not save dashboard", err
-				}
-			case "update":
-				fallthrough
-			case "patch":
-				fallthrough
-			case "put":
-				ok, err = guardian.CanEdit() // vs Save
-				if !ok || err != nil {
-					return authorizer.DecisionDeny, "can not edit dashboard", err
-				}
-			case "delete":
-				ok, err = guardian.CanDelete()
-				if !ok || err != nil {
-					return authorizer.DecisionDeny, "can not delete dashboard", err
-				}
-			default:
-				l.Info("unknown verb", "verb", attr.GetVerb())
-				return authorizer.DecisionNoOpinion, "unsupported verb", nil // Unknown verb
-			}
-			return authorizer.DecisionAllow, "", nil
-		})
-}

pkg/registry/apis/dashboard/sub_dto.go

@@ -19,7 +19,6 @@ import (
 	"github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/apiserver/endpoints/request"
 	"github.com/grafana/grafana/pkg/services/dashboards"
-	"github.com/grafana/grafana/pkg/services/guardian"
 	"github.com/grafana/grafana/pkg/storage/unified/apistore"
 	"github.com/grafana/grafana/pkg/storage/unified/resource"
 )
@@ -87,7 +86,7 @@ func (r *DTOConnector) ProducesObject(verb string) interface{} {
 }
 
 func (r *DTOConnector) Connect(ctx context.Context, name string, opts runtime.Object, responder rest.Responder) (http.Handler, error) {
-	info, err := request.NamespaceInfoFrom(ctx, true)
+	_, err := request.NamespaceInfoFrom(ctx, true)
 	if err != nil {
 		return nil, err
 	}
@@ -128,33 +127,22 @@ func (r *DTOConnector) Connect(ctx context.Context, name string, opts runtime.Ob
 			return
 		}
 
-		// Calculate access information -- needed to help smooth transition from /api/dashboard format
-		dto := &dashboards.Dashboard{
-			UID:   name,
-			OrgID: info.OrgID,
-			ID:    obj.GetDeprecatedInternalID(), // nolint:staticcheck
-		}
-		manager, ok := obj.GetManagerProperties()
-		if ok && manager.Kind == utils.ManagerKindPlugin {
-			dto.PluginID = manager.Identity
-		}
-
-		guardian, err := guardian.NewByDashboard(ctx, dto, info.OrgID, user)
-		if err != nil {
-			responder.Error(err)
-			return
-		}
-		canView, err := guardian.CanView()
+		dashScope := dashboards.ScopeDashboardsProvider.GetResourceScopeUID(name)
+		evaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsRead, dashScope)
+		canView, err := r.accessControl.Evaluate(ctx, user, evaluator)
 		if err != nil || !canView {
 			responder.Error(fmt.Errorf("not allowed to view"))
 			return
 		}
 
 		access := &dashboard.DashboardAccess{}
-		access.CanEdit, _ = guardian.CanEdit()
-		access.CanSave, _ = guardian.CanSave()
-		access.CanAdmin, _ = guardian.CanAdmin()
-		access.CanDelete, _ = guardian.CanDelete()
+		writeEvaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsWrite, dashScope)
+		access.CanSave, _ = r.accessControl.Evaluate(ctx, user, writeEvaluator)
+		access.CanEdit = access.CanSave
+		adminEvaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsPermissionsWrite, dashScope)
+		access.CanAdmin, _ = r.accessControl.Evaluate(ctx, user, adminEvaluator)
+		deleteEvaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsDelete, dashScope)
+		access.CanDelete, _ = r.accessControl.Evaluate(ctx, user, deleteEvaluator)
 		access.CanStar = user.IsIdentityType(claims.TypeUser)
 
 		access.AnnotationsPermissions = &dashboard.AnnotationPermission{}

pkg/services/guardian/guardian.go

@@ -7,7 +7,6 @@ import (
 	"github.com/grafana/grafana/pkg/apimachinery/errutil"
 	"github.com/grafana/grafana/pkg/apimachinery/identity"
 	"github.com/grafana/grafana/pkg/infra/metrics"
-	"github.com/grafana/grafana/pkg/services/dashboards"
 	"github.com/grafana/grafana/pkg/services/folder"
 )
 
@@ -34,12 +33,6 @@ var New = func(ctx context.Context, dashId int64, orgId int64, user identity.Req
 	panic("no guardian factory implementation provided")
 }
 
-// NewByDashboard factory for creating a new dashboard guardian instance
-// When using access control this function is replaced on startup and the AccessControlDashboardGuardian is returned
-var NewByDashboard = func(ctx context.Context, dash *dashboards.Dashboard, orgId int64, user identity.Requester) (DashboardGuardian, error) {
-	panic("no guardian factory implementation provided")
-}
-
 // NewByFolderUID factory for creating a new folder guardian instance
 // When using access control this function is replaced on startup and the AccessControlDashboardGuardian is returned
 var NewByFolderUID = func(ctx context.Context, folderUID string, orgId int64, user identity.Requester) (DashboardGuardian, error) {
@@ -108,13 +101,6 @@ func MockDashboardGuardian(mock *FakeDashboardGuardian) {
 		mock.User = user
 		return mock, nil
 	}
-	NewByDashboard = func(_ context.Context, dash *dashboards.Dashboard, orgId int64, user identity.Requester) (DashboardGuardian, error) {
-		mock.OrgID = orgId
-		mock.DashUID = dash.UID
-		mock.DashID = dash.ID
-		mock.User = user
-		return mock, nil
-	}
 
 	NewByFolderUID = func(_ context.Context, folderUID string, orgId int64, user identity.Requester) (DashboardGuardian, error) {
 		mock.OrgID = orgId

pkg/services/guardian/provider.go

@@ -31,10 +31,6 @@ func InitAccessControlGuardian(
 		return NewAccessControlDashboardGuardian(ctx, cfg, dashId, user, ac, dashboardService, folderService, logger)
 	}
 
-	NewByDashboard = func(ctx context.Context, dash *dashboards.Dashboard, orgId int64, user identity.Requester) (DashboardGuardian, error) {
-		return NewAccessControlDashboardGuardianByDashboard(ctx, cfg, dash, user, ac, dashboardService, folderService, logger)
-	}
-
 	NewByFolderUID = func(ctx context.Context, folderUID string, orgId int64, user identity.Requester) (DashboardGuardian, error) {
 		return NewAccessControlFolderGuardianByUID(ctx, cfg, folderUID, user, ac, dashboardService, folderService)
 	}

pkg/services/live/features/dashboard.go

@@ -10,8 +10,8 @@ import (
 
 	"github.com/grafana/grafana/pkg/apimachinery/identity"
 	"github.com/grafana/grafana/pkg/infra/db"
+	"github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/dashboards"
-	"github.com/grafana/grafana/pkg/services/guardian"
 	"github.com/grafana/grafana/pkg/services/live/model"
 )
 
@@ -63,6 +63,7 @@ type DashboardHandler struct {
 	ClientCount      model.ChannelClientCount
 	Store            db.DB
 	DashboardService dashboards.DashboardService
+	AccessControl    accesscontrol.AccessControl
 }
 
 // GetHandlerForPath called on init
@@ -77,20 +78,17 @@ func (h *DashboardHandler) OnSubscribe(ctx context.Context, user identity.Reques
 	// make sure can view this dashboard
 	if len(parts) == 2 && parts[0] == "uid" {
 		query := dashboards.GetDashboardQuery{UID: parts[1], OrgID: user.GetOrgID()}
-		queryResult, err := h.DashboardService.GetDashboard(ctx, &query)
+		_, err := h.DashboardService.GetDashboard(ctx, &query)
 		if err != nil {
 			logger.Error("Error getting dashboard", "query", query, "error", err)
 			return model.SubscribeReply{}, backend.SubscribeStreamStatusNotFound, nil
 		}
 
-		dash := queryResult
-		guard, err := guardian.NewByDashboard(ctx, dash, user.GetOrgID(), user)
-		if err != nil {
+		evaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsRead, dashboards.ScopeDashboardsProvider.GetResourceScopeUID(parts[1]))
+		canView, err := h.AccessControl.Evaluate(ctx, user, evaluator)
+		if err != nil || !canView {
 			return model.SubscribeReply{}, backend.SubscribeStreamStatusPermissionDenied, err
 		}
-		if canView, err := guard.CanView(); err != nil || !canView {
-			return model.SubscribeReply{}, backend.SubscribeStreamStatusPermissionDenied, nil
-		}
 
 		return model.SubscribeReply{
 			Presence:  true,
@@ -119,19 +117,14 @@ func (h *DashboardHandler) OnPublish(ctx context.Context, requester identity.Req
 			return model.PublishReply{}, backend.PublishStreamStatusNotFound, fmt.Errorf("ignore???")
 		}
 		query := dashboards.GetDashboardQuery{UID: parts[1], OrgID: requester.GetOrgID()}
-		queryResult, err := h.DashboardService.GetDashboard(ctx, &query)
+		_, err = h.DashboardService.GetDashboard(ctx, &query)
 		if err != nil {
 			logger.Error("Unknown dashboard", "query", query)
 			return model.PublishReply{}, backend.PublishStreamStatusNotFound, nil
 		}
 
-		guard, err := guardian.NewByDashboard(ctx, queryResult, requester.GetOrgID(), requester)
-		if err != nil {
-			logger.Error("Failed to create guardian", "err", err)
-			return model.PublishReply{}, backend.PublishStreamStatusNotFound, fmt.Errorf("internal error")
-		}
-
-		canEdit, err := guard.CanEdit()
+		evaluator := accesscontrol.EvalPermission(dashboards.ActionDashboardsWrite, dashboards.ScopeDashboardsProvider.GetResourceScopeUID(parts[1]))
+		canEdit, err := h.AccessControl.Evaluate(ctx, requester, evaluator)
 		if err != nil {
 			return model.PublishReply{}, backend.PublishStreamStatusNotFound, fmt.Errorf("internal error")
 		}

pkg/services/live/live.go

@@ -184,6 +184,7 @@ func ProvideService(plugCtxProvider *plugincontext.Provider, cfg *setting.Cfg, r
 		ClientCount:      g.ClientCount,
 		Store:            sqlStore,
 		DashboardService: dashboardService,
+		AccessControl:    accessControl,
 	}
 	g.storage = database.NewStorage(g.SQLStore, g.CacheService)
 	g.GrafanaScope.Dashboards = dash