stash/pkg/group/validate.go

119 lines
3.0 KiB
Go

package group
import (
"context"
"slices"
"strings"
"github.com/stashapp/stash/pkg/models"
"github.com/stashapp/stash/pkg/sliceutil"
)
func (s *Service) validateCreate(ctx context.Context, group *models.Group) error {
if err := validateName(group.Name); err != nil {
return err
}
containingIDs := group.ContainingGroups.IDs()
subIDs := group.SubGroups.IDs()
if err := s.validateGroupHierarchy(ctx, containingIDs, subIDs); err != nil {
return err
}
return nil
}
func (s *Service) validateUpdate(ctx context.Context, id int, partial models.GroupPartial) error {
// get the existing group - ensure it exists
existing, err := s.Repository.Find(ctx, id)
if err != nil {
return err
}
if existing == nil {
return models.ErrNotFound
}
if partial.Name.Set {
if err := validateName(partial.Name.Value); err != nil {
return err
}
}
if err := s.validateUpdateGroupHierarchy(ctx, existing, partial.ContainingGroups, partial.SubGroups); err != nil {
return err
}
return nil
}
func validateName(n string) error {
// ensure name is not empty
if strings.TrimSpace(n) == "" {
return ErrEmptyName
}
return nil
}
func (s *Service) validateGroupHierarchy(ctx context.Context, containingIDs []int, subIDs []int) error {
// only need to validate if both are non-empty
if len(containingIDs) == 0 || len(subIDs) == 0 {
return nil
}
// ensure none of the containing groups are in the sub groups
found, err := s.Repository.FindInAncestors(ctx, containingIDs, subIDs)
if err != nil {
return err
}
if len(found) > 0 {
return ErrHierarchyLoop
}
return nil
}
func (s *Service) validateUpdateGroupHierarchy(ctx context.Context, existing *models.Group, containingGroups *models.UpdateGroupDescriptions, subGroups *models.UpdateGroupDescriptions) error {
// no need to validate if there are no changes
if containingGroups == nil && subGroups == nil {
return nil
}
if err := existing.LoadContainingGroupIDs(ctx, s.Repository); err != nil {
return err
}
existingContainingGroups := existing.ContainingGroups.List()
if err := existing.LoadSubGroupIDs(ctx, s.Repository); err != nil {
return err
}
existingSubGroups := existing.SubGroups.List()
effectiveContainingGroups := existingContainingGroups
if containingGroups != nil {
effectiveContainingGroups = containingGroups.Apply(existingContainingGroups)
}
effectiveSubGroups := existingSubGroups
if subGroups != nil {
effectiveSubGroups = subGroups.Apply(existingSubGroups)
}
containingIDs := idsFromGroupDescriptions(effectiveContainingGroups)
subIDs := idsFromGroupDescriptions(effectiveSubGroups)
// ensure we haven't set the group as a subgroup of itself
if slices.Contains(containingIDs, existing.ID) || slices.Contains(subIDs, existing.ID) {
return ErrHierarchyLoop
}
return s.validateGroupHierarchy(ctx, containingIDs, subIDs)
}
func idsFromGroupDescriptions(v []models.GroupIDDescription) []int {
return sliceutil.Map(v, func(g models.GroupIDDescription) int { return g.GroupID })
}