graph/sharing: Add check for role conditions

Use the condition from the unifiedrole to check if the requested role
is actually applicable to the selected resource.

Fixes: owncloud#8131

services/graph/pkg/service/v0/driveitems.go

@@ -460,6 +460,12 @@ func (g Graph) Invite(w http.ResponseWriter, r *http.Request) {
 			errorcode.GeneralException.Render(w, r, http.StatusInternalServerError, http.StatusText(http.StatusInternalServerError))
 			return
 		}
+		// FIXME: When setting permissions on a space, we need to use UnifiedRoleConditionOwner here
+		allowedResourceActions := unifiedrole.GetAllowedResourceActions(role, unifiedrole.UnifiedRoleConditionGrantee)
+		if len(allowedResourceActions) == 0 {
+			errorcode.InvalidRequest.Render(w, r, http.StatusBadRequest, "role not applicable to this resource")
+			return
+		}
 
 		unifiedRolePermissions = append(unifiedRolePermissions, conversions.ToPointerSlice(role.GetRolePermissions())...)
 	}

services/graph/pkg/service/v0/driveitems_test.go

@@ -1007,6 +1007,17 @@ var _ = Describe("Driveitems", func() {
 			Expect(jsonData.Get("0.roles.0").String()).To(Equal(unifiedrole.NewViewerUnifiedRole(true).GetId()))
 		})
 
+		It("failes with wrong role", func() {
+			driveItemInvite.Roles = []string{unifiedrole.NewCoownerUnifiedRole().GetId()}
+			svc.Invite(
+				rr,
+				httptest.NewRequest(http.MethodPost, "/", toJSONReader(driveItemInvite)).
+					WithContext(ctx),
+			)
+
+			Expect(rr.Code).To(Equal(http.StatusBadRequest))
+		})
+
 		It("with actions (happy path)", func() {
 			driveItemInvite.Roles = nil
 			driveItemInvite.LibreGraphPermissionsActions = []string{unifiedrole.DriveItemContentRead}

services/graph/pkg/unifiedrole/unifiedrole_test.go

@@ -27,8 +27,7 @@ var _ = Describe("unifiedroles", func() {
 		Entry(rConversions.RoleViewer, rConversions.NewViewerRole(true), unifiedrole.NewViewerUnifiedRole(true), unifiedrole.UnifiedRoleConditionGrantee),
 		Entry(rConversions.RoleEditor, rConversions.NewEditorRole(true), unifiedrole.NewEditorUnifiedRole(true), unifiedrole.UnifiedRoleConditionGrantee),
 		Entry(rConversions.RoleFileEditor, rConversions.NewFileEditorRole(true), unifiedrole.NewFileEditorUnifiedRole(true), unifiedrole.UnifiedRoleConditionGrantee),
-		Entry(rConversions.RoleCoowner, rConversions.NewCoownerRole(), unifiedrole.NewCoownerUnifiedRole(), unifiedrole.UnifiedRoleConditionGrantee),
-		Entry(rConversions.RoleManager, rConversions.NewManagerRole(), unifiedrole.NewManagerUnifiedRole(), unifiedrole.UnifiedRoleConditionGrantee),
+		Entry(rConversions.RoleCoowner, rConversions.NewCoownerRole(), unifiedrole.NewCoownerUnifiedRole(), unifiedrole.UnifiedRoleConditionOwner),
 		Entry(rConversions.RoleManager, rConversions.NewManagerRole(), unifiedrole.NewManagerUnifiedRole(), unifiedrole.UnifiedRoleConditionOwner),
 		Entry(rConversions.RoleSpaceViewer, rConversions.NewSpaceViewerRole(), unifiedrole.NewSpaceViewerUnifiedRole(), unifiedrole.UnifiedRoleConditionOwner),
 		Entry(rConversions.RoleSpaceEditor, rConversions.NewSpaceEditorRole(), unifiedrole.NewSpaceEditorUnifiedRole(), unifiedrole.UnifiedRoleConditionOwner),
@@ -208,6 +207,17 @@ var _ = Describe("unifiedroles", func() {
 					unifiedrole.NewViewerUnifiedRole(false),
 					unifiedrole.NewFileEditorUnifiedRole(false),
 					unifiedrole.NewEditorUnifiedRole(false),
+				},
+			),
+
+			Entry(
+				"GetBuiltinRoleDefinitionList",
+				rolesToAction(unifiedrole.GetBuiltinRoleDefinitionList(false)...),
+				unifiedrole.UnifiedRoleConditionOwner,
+				false,
+				[]*libregraph.UnifiedRoleDefinition{
+					unifiedrole.NewSpaceViewerUnifiedRole(),
+					unifiedrole.NewSpaceEditorUnifiedRole(),
 					unifiedrole.NewCoownerUnifiedRole(),
 					unifiedrole.NewManagerUnifiedRole(),
 				},
@@ -223,8 +233,6 @@ var _ = Describe("unifiedroles", func() {
 					unifiedrole.NewViewerUnifiedRole(true),
 					unifiedrole.NewFileEditorUnifiedRole(true),
 					unifiedrole.NewEditorUnifiedRole(true),
-					unifiedrole.NewCoownerUnifiedRole(),
-					unifiedrole.NewManagerUnifiedRole(),
 				},
 			),