9344046161

Committed 03 Jun 2024 03:59AM UTC coverage: 74.915% (-0.3%) from 75.222%

Build # 9344046161

Build Type

Pull #125

github

Committed by

rahmatrhd

Commit Message

chore: add additional checking for isExpired

Pull Request Pull Request #125: feat(grant): add restore grant API

Run Details

34 of 108 new or added lines in 4 files covered. (31.48%)

73 existing lines in 3 files now uncovered.

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81.94

/core/grant/service.go

package grant

import (
        "context"
        "fmt"
        "sort"
        "strings"
        "time"

        "github.com/go-playground/validator/v10"
        "github.com/goto/guardian/domain"
        "github.com/goto/guardian/pkg/log"
        "github.com/goto/guardian/pkg/slices"
        "github.com/goto/guardian/plugins/notifiers"
        "github.com/goto/guardian/utils"
)

const (
        AuditKeyRevoke  = "grant.revoke"
        AuditKeyUpdate  = "grant.update"
        AuditKeyRestore = "grant.restore"
)

//go:generate mockery --name=repository --exported --with-expecter
type repository interface {
        List(context.Context, domain.ListGrantsFilter) ([]domain.Grant, error)
        GetByID(context.Context, string) (*domain.Grant, error)
        Update(context.Context, *domain.Grant) error
        BulkUpsert(context.Context, []*domain.Grant) error
        GetGrantsTotalCount(context.Context, domain.ListGrantsFilter) (int64, error)
        ListUserRoles(context.Context, string) ([]string, error)
}

//go:generate mockery --name=providerService --exported --with-expecter
type providerService interface {
        GetByID(context.Context, string) (*domain.Provider, error)
        GrantAccess(context.Context, domain.Grant) error
        RevokeAccess(context.Context, domain.Grant) error
        ListAccess(context.Context, domain.Provider, []*domain.Resource) (domain.MapResourceAccess, error)
        ListActivities(context.Context, domain.Provider, domain.ListActivitiesFilter) ([]*domain.Activity, error)
        CorrelateGrantActivities(context.Context, domain.Provider, []*domain.Grant, []*domain.Activity) error
}

//go:generate mockery --name=resourceService --exported --with-expecter
type resourceService interface {
        Find(context.Context, domain.ListResourcesFilter) ([]*domain.Resource, error)
}

//go:generate mockery --name=auditLogger --exported --with-expecter
type auditLogger interface {
        Log(ctx context.Context, action string, data interface{}) error
}

//go:generate mockery --name=notifier --exported --with-expecter
type notifier interface {
        notifiers.Client
}

type grantCreation struct {
        AppealStatus string `validate:"required,eq=approved"`
        AccountID    string `validate:"required"`
        AccountType  string `validate:"required"`
        ResourceID   string `validate:"required"`
}

type Service struct {
        repo            repository
        providerService providerService
        resourceService resourceService

        notifier    notifier
        validator   *validator.Validate
        logger      log.Logger
        auditLogger auditLogger
}

type ServiceDeps struct {
        Repository      repository
        ProviderService providerService
        ResourceService resourceService

        Notifier    notifier
        Validator   *validator.Validate
        Logger      log.Logger
        AuditLogger auditLogger
}

func NewService(deps ServiceDeps) *Service {
        return &Service{
                repo:            deps.Repository,
                providerService: deps.ProviderService,
                resourceService: deps.ResourceService,

                notifier:    deps.Notifier,
                validator:   deps.Validator,
                logger:      deps.Logger,
                auditLogger: deps.AuditLogger,
        }
}

func (s *Service) List(ctx context.Context, filter domain.ListGrantsFilter) ([]domain.Grant, error) {
        return s.repo.List(ctx, filter)
}

func (s *Service) GetByID(ctx context.Context, id string) (*domain.Grant, error) {
        if id == "" {
                return nil, ErrEmptyIDParam
        }
        return s.repo.GetByID(ctx, id)
}

func (s *Service) Update(ctx context.Context, payload *domain.Grant) error {
        grantDetails, err := s.GetByID(ctx, payload.ID)
        if err != nil {
                return fmt.Errorf("getting grant details: %w", err)
        }

        if payload.Owner == "" {
                return ErrEmptyOwner
        }
        updatedGrant := &domain.Grant{
                ID: payload.ID,

                // Only allow updating several fields
                Owner: payload.Owner,
        }
        if err := s.repo.Update(ctx, updatedGrant); err != nil {
                return err
        }
        previousOwner := grantDetails.Owner
        grantDetails.Owner = updatedGrant.Owner
        grantDetails.UpdatedAt = updatedGrant.UpdatedAt
        *payload = *grantDetails
        s.logger.Info(ctx, "grant updated", "grant_id", grantDetails.ID, "updatedGrant", updatedGrant)

        if err := s.auditLogger.Log(ctx, AuditKeyUpdate, map[string]interface{}{
                "grant_id":      grantDetails.ID,
                "payload":       updatedGrant,
                "updated_grant": payload,
        }); err != nil {
                s.logger.Error(ctx, "failed to record audit log", "error", err)
        }

        if previousOwner != updatedGrant.Owner {
                message := domain.NotificationMessage{
                        Type: domain.NotificationTypeGrantOwnerChanged,
                        Variables: map[string]interface{}{
                                "grant_id":       grantDetails.ID,
                                "previous_owner": previousOwner,
                                "new_owner":      updatedGrant.Owner,
                        },
                }
                notifications := []domain.Notification{{
                        User: updatedGrant.Owner,
                        Labels: map[string]string{
                                "appeal_id": grantDetails.AppealID,
                                "grant_id":  grantDetails.ID,
                        },
                        Message: message,
                }}
                if previousOwner != "" {
                        notifications = append(notifications, domain.Notification{
                                User: previousOwner,
                                Labels: map[string]string{
                                        "appeal_id": grantDetails.AppealID,
                                        "grant_id":  grantDetails.ID,
                                },
                                Message: message,
                        })
                }
                if errs := s.notifier.Notify(ctx, notifications); errs != nil {
                        for _, err1 := range errs {
                                s.logger.Error(ctx, "failed to send notifications", "error", err1.Error())
                        }
                }
        }

        return nil
}

func (s *Service) Prepare(ctx context.Context, appeal domain.Appeal) (*domain.Grant, error) {
        // validation
        if err := s.validator.Struct(grantCreation{
                AppealStatus: appeal.Status,
                AccountID:    appeal.AccountID,
                AccountType:  appeal.AccountType,
                ResourceID:   appeal.ResourceID,
        }); err != nil {
                return nil, fmt.Errorf("validating appeal: %w", err)
        }

        // converting aapeal into a new grant
        return appeal.ToGrant()
}

func (s *Service) Revoke(ctx context.Context, id, actor, reason string, opts ...Option) (*domain.Grant, error) {
        grant, err := s.GetByID(ctx, id)
        if err != nil {
                return nil, fmt.Errorf("getting grant details: %w", err)
        }

        revokedGrant := &domain.Grant{}
        *revokedGrant = *grant
        if err := grant.Revoke(actor, reason); err != nil {
                return nil, err
        }
        if err := s.repo.Update(ctx, grant); err != nil {
                return nil, fmt.Errorf("updating grant record in db: %w", err)
        }

        options := s.getOptions(opts...)

        if !options.skipRevokeInProvider {
                if err := s.providerService.RevokeAccess(ctx, *grant); err != nil {
                        if err := s.repo.Update(ctx, grant); err != nil {
                                return nil, fmt.Errorf("failed to rollback grant status: %w", err)
                        }
                        return nil, fmt.Errorf("removing grant in provider: %w", err)
                }
        }

        if !options.skipNotification {
                if errs := s.notifier.Notify(ctx, []domain.Notification{{
                        User: grant.CreatedBy,
                        Labels: map[string]string{
                                "appeal_id": grant.AppealID,
                                "grant_id":  grant.ID,
                        },
                        Message: domain.NotificationMessage{
                                Type: domain.NotificationTypeAccessRevoked,
                                Variables: map[string]interface{}{
                                        "resource_name": fmt.Sprintf("%s (%s: %s)", grant.Resource.Name, grant.Resource.ProviderType, grant.Resource.URN),
                                        "role":          grant.Role,
                                        "account_type":  grant.AccountType,
                                        "account_id":    grant.AccountID,
                                        "requestor":     grant.Owner,
                                        "revoke_reason": grant.RevokeReason,
                                },
                        },
                }}); errs != nil {
                        for _, err1 := range errs {
                                s.logger.Error(ctx, "failed to send notifications", "error", err1.Error())
                        }
                }
        }

        s.logger.Info(ctx, "grant revoked", "grant_id", id)

        if err := s.auditLogger.Log(ctx, AuditKeyRevoke, map[string]interface{}{
                "grant_id": id,
                "reason":   reason,
        }); err != nil {
                s.logger.Error(ctx, "failed to record audit log", "error", err)
        }

        return grant, nil
}

func (s *Service) Restore(ctx context.Context, id, actor, reason string) (*domain.Grant, error) {
        grant, err := s.GetByID(ctx, id)
        if err != nil {
                return nil, fmt.Errorf("getting grant details: %w", err)
        }

        if err := grant.Restore(actor, reason); err != nil {
                return nil, fmt.Errorf("%w: %s", ErrInvalidRequest, err.Error())
        }

        if err := s.providerService.GrantAccess(ctx, *grant); err != nil {
                return nil, fmt.Errorf("granting access in provider: %w", err)
        }

        if err := s.repo.Update(ctx, grant); err != nil {
                return nil, fmt.Errorf("updating grant record in db: %w", err)
        }

        if err := s.auditLogger.Log(ctx, AuditKeyRestore, map[string]interface{}{
                "grant_id": id,
                "reason":   reason,
        }); err != nil {
                s.logger.Error(ctx, "failed to record audit log", "error", err)
        }

        return grant, nil
}

func (s *Service) BulkRevoke(ctx context.Context, filter domain.RevokeGrantsFilter, actor, reason string) ([]*domain.Grant, error) {
        if filter.AccountIDs == nil || len(filter.AccountIDs) == 0 {
                return nil, fmt.Errorf("account_ids is required")
        }

        grants, err := s.List(ctx, domain.ListGrantsFilter{
                Statuses:      []string{string(domain.GrantStatusActive)},
                AccountIDs:    filter.AccountIDs,
                ProviderTypes: filter.ProviderTypes,
                ProviderURNs:  filter.ProviderURNs,
                ResourceTypes: filter.ResourceTypes,
                ResourceURNs:  filter.ResourceURNs,
        })
        if err != nil {
                return nil, fmt.Errorf("listing active grants: %w", err)
        }
        if len(grants) == 0 {
                return nil, nil
        }

        result := make([]*domain.Grant, 0)
        batchSize := 10
        timeLimiter := make(chan int, batchSize)

        for i := 1; i <= batchSize; i++ {
                timeLimiter <- i
        }

        go func() {
                for range time.Tick(1 * time.Second) {
                        for i := 1; i <= batchSize; i++ {
                                timeLimiter <- i
                        }
                }
        }()

        totalRequests := len(grants)
        done := make(chan *domain.Grant, totalRequests)
        resourceGrantMap := make(map[string][]*domain.Grant, 0)

        for i, grant := range grants {
                var resourceGrants []*domain.Grant
                var ok bool
                if resourceGrants, ok = resourceGrantMap[grant.ResourceID]; ok {
                        resourceGrants = append(resourceGrants, &grants[i])
                } else {
                        resourceGrants = []*domain.Grant{&grants[i]}
                }
                resourceGrantMap[grant.ResourceID] = resourceGrants
        }

        for _, resourceGrants := range resourceGrantMap {
                go s.expiredInActiveUserAccess(ctx, timeLimiter, done, actor, reason, resourceGrants)
        }

        var successRevoke []string
        var failedRevoke []string
        for {
                select {
                case grant := <-done:
                        if grant.Status == domain.GrantStatusInactive {
                                successRevoke = append(successRevoke, grant.ID)
                        } else {
                                failedRevoke = append(failedRevoke, grant.ID)
                        }
                        result = append(result, grant)
                        if len(result) == totalRequests {
                                s.logger.Info(ctx, "successful grant revocation", "count", len(successRevoke), "ids", successRevoke)
                                if len(failedRevoke) > 0 {
                                        s.logger.Info(ctx, "failed grant revocation", "count", len(failedRevoke), "ids", failedRevoke)
                                }
                                return result, nil
                        }
                }
        }
}

func (s *Service) expiredInActiveUserAccess(ctx context.Context, timeLimiter chan int, done chan *domain.Grant, actor string, reason string, grants []*domain.Grant) {
        for _, grant := range grants {
                <-timeLimiter

                revokedGrant := &domain.Grant{}
                *revokedGrant = *grant
                if err := revokedGrant.Revoke(actor, reason); err != nil {
                        s.logger.Error(ctx, "failed to revoke grant", "id", grant.ID, "error", err)
                        return
                }
                if err := s.providerService.RevokeAccess(ctx, *grant); err != nil {
                        done <- grant
                        s.logger.Error(ctx, "failed to revoke grant in provider", "id", grant.ID, "error", err)
                        return
                }

                revokedGrant.Status = domain.GrantStatusInactive
                if err := s.repo.Update(ctx, revokedGrant); err != nil {
                        done <- grant
                        s.logger.Error(ctx, "failed to update access-revoke status", "id", grant.ID, "error", err)
                        return
                } else {
                        done <- revokedGrant
                        s.logger.Info(ctx, "grant revoked", "id", grant.ID)
                }
        }
}

type ImportFromProviderCriteria struct {
        ProviderID    string `validate:"required"`
        ResourceIDs   []string
        ResourceTypes []string
        ResourceURNs  []string
}

func (s *Service) ImportFromProvider(ctx context.Context, criteria ImportFromProviderCriteria) ([]*domain.Grant, error) {
        p, err := s.providerService.GetByID(ctx, criteria.ProviderID)
        if err != nil {
                return nil, fmt.Errorf("getting provider details: %w", err)
        }

        listResourcesFilter := domain.ListResourcesFilter{
                ProviderType: p.Type,
                ProviderURN:  p.URN,
        }
        listGrantsFilter := domain.ListGrantsFilter{
                Statuses:      []string{string(domain.GrantStatusActive)},
                ProviderTypes: []string{p.Type},
                ProviderURNs:  []string{p.URN},
        }
        if criteria.ResourceIDs != nil {
                listResourcesFilter.IDs = criteria.ResourceIDs
                listGrantsFilter.ResourceIDs = criteria.ResourceIDs
        } else {
                listResourcesFilter.ResourceTypes = criteria.ResourceTypes
                listResourcesFilter.ResourceURNs = criteria.ResourceURNs

                listGrantsFilter.ResourceTypes = criteria.ResourceTypes
                listGrantsFilter.ResourceURNs = criteria.ResourceURNs
        }
        resources, err := s.resourceService.Find(ctx, listResourcesFilter)
        if err != nil {
                return nil, fmt.Errorf("getting resources: %w", err)
        }

        resourceAccess, err := s.providerService.ListAccess(ctx, *p, resources)
        if err != nil {
                return nil, fmt.Errorf("fetching access from provider: %w", err)
        }

        resourceConfigs := make(map[string]*domain.ResourceConfig)
        for _, rc := range p.Config.Resources {
                resourceConfigs[rc.Type] = rc
        }

        resourcesMap := make(map[string]*domain.Resource)
        for _, r := range resources {
                resourcesMap[r.URN] = r
        }

        activeGrants, err := s.repo.List(ctx, listGrantsFilter)
        if err != nil {
                return nil, fmt.Errorf("getting active grants: %w", err)
        }
        // map[resourceURN]map[accounttype:accountId]map[permissionsKey]grant
        activeGrantsMap := map[string]map[string]map[string]*domain.Grant{}
        for i, g := range activeGrants {
                if activeGrantsMap[g.Resource.URN] == nil {
                        activeGrantsMap[g.Resource.URN] = map[string]map[string]*domain.Grant{}
                }

                accountSignature := getAccountSignature(g.AccountType, g.AccountID)
                if activeGrantsMap[g.Resource.URN][accountSignature] == nil {
                        activeGrantsMap[g.Resource.URN][accountSignature] = map[string]*domain.Grant{}
                }

                activeGrantsMap[g.Resource.URN][accountSignature][g.PermissionsKey()] = &activeGrants[i]
        }

        var newAndUpdatedGrants []*domain.Grant
        for rURN, accessEntries := range resourceAccess {
                resource, ok := resourcesMap[rURN]
                if !ok {
                        continue // skip access for resources that not yet added to guardian
                }

                importedGrants := []*domain.Grant{}
                for accountSignature, accessEntries := range groupAccessEntriesByAccount(accessEntries) {
                        // convert access entries to grants
                        var grants []*domain.Grant
                        for _, ae := range accessEntries {
                                g := ae.ToGrant(*resource)
                                grants = append(grants, &g)
                        }

                        // group grants for the same account (accountGrants) by provider role
                        rc := resourceConfigs[resource.Type]
                        grants = reduceGrantsByProviderRole(*rc, grants)
                        for i, g := range grants {
                                key := g.PermissionsKey()
                                if existingGrant, ok := activeGrantsMap[rURN][accountSignature][key]; ok {
                                        // replace imported grant values with existing grant
                                        *grants[i] = *existingGrant

                                        // remove updated grant from active grants map
                                        delete(activeGrantsMap[rURN][accountSignature], key)
                                }
                        }

                        importedGrants = append(importedGrants, grants...)
                }

                if len(importedGrants) > 0 {
                        if err := s.repo.BulkUpsert(ctx, importedGrants); err != nil {
                                return nil, fmt.Errorf("inserting new and updated grants into the db for %q: %w", rURN, err)
                        }
                        newAndUpdatedGrants = append(newAndUpdatedGrants, importedGrants...)
                }
        }

        // mark remaining active grants as inactive
        var deactivatedGrants []*domain.Grant
        for _, v := range activeGrantsMap {
                for _, v2 := range v {
                        for _, g := range v2 {
                                g.StatusInProvider = domain.GrantStatusInactive
                                deactivatedGrants = append(deactivatedGrants, g)
                        }
                }
        }
        if len(deactivatedGrants) > 0 {
                if err := s.repo.BulkUpsert(ctx, deactivatedGrants); err != nil {
                        return nil, fmt.Errorf("updating grants provider status: %w", err)
                }
        }

        return newAndUpdatedGrants, nil
}

func (s *Service) DormancyCheck(ctx context.Context, criteria domain.DormancyCheckCriteria) error {
        if err := criteria.Validate(); err != nil {
                return fmt.Errorf("invalid dormancy check criteria: %w", err)
        }
        startDate := time.Now().Add(-criteria.Period)

        provider, err := s.providerService.GetByID(ctx, criteria.ProviderID)
        if err != nil {
                return fmt.Errorf("getting provider details: %w", err)
        }

        s.logger.Info(ctx, "getting active grants", "provider_urn", provider.URN)
        grants, err := s.List(ctx, domain.ListGrantsFilter{
                Statuses:      []string{string(domain.GrantStatusActive)}, // TODO: evaluate later to use status_in_provider
                ProviderTypes: []string{provider.Type},
                ProviderURNs:  []string{provider.URN},
                CreatedAtLte:  startDate,
        })
        if err != nil {
                return fmt.Errorf("listing active grants: %w", err)
        }
        if len(grants) == 0 {
                s.logger.Info(ctx, "no active grants found", "provider_urn", provider.URN)
                return nil
        }
        grantIDs := getGrantIDs(grants)
        s.logger.Info(ctx, fmt.Sprintf("found %d active grants", len(grants)), "grant_ids", grantIDs, "provider_urn", provider.URN)

        var accountIDs []string
        for _, g := range grants {
                accountIDs = append(accountIDs, g.AccountID)
        }
        accountIDs = slices.UniqueStringSlice(accountIDs)

        s.logger.Info(ctx, "getting activities", "provider_urn", provider.URN)
        activities, err := s.providerService.ListActivities(ctx, *provider, domain.ListActivitiesFilter{
                AccountIDs:   accountIDs,
                TimestampGte: &startDate,
        })
        if err != nil {
                return fmt.Errorf("listing activities for provider %q: %w", provider.URN, err)
        }
        s.logger.Info(ctx, fmt.Sprintf("found %d activities", len(activities)), "provider_urn", provider.URN)

        grantsPointer := make([]*domain.Grant, len(grants))
        for i, g := range grants {
                g := g
                grantsPointer[i] = &g
        }
        if err := s.providerService.CorrelateGrantActivities(ctx, *provider, grantsPointer, activities); err != nil {
                return fmt.Errorf("correlating grant activities: %w", err)
        }

        s.logger.Info(ctx, "checking grants dormancy...", "provider_urn", provider.URN)
        var dormantGrants []*domain.Grant
        var dormantGrantsIDs []string
        var dormantGrantsByOwner = map[string][]*domain.Grant{}
        for _, g := range grantsPointer {
                if len(g.Activities) == 0 {
                        g.ExpirationDateReason = fmt.Sprintf("%s: %s", domain.GrantExpirationReasonDormant, criteria.RetainDuration)
                        newExpDate := time.Now().Add(criteria.RetainDuration)
                        g.ExpirationDate = &newExpDate
                        g.IsPermanent = false

                        dormantGrants = append(dormantGrants, g)
                        dormantGrantsIDs = append(dormantGrantsIDs, g.ID)

                        dormantGrantsByOwner[g.Owner] = append(dormantGrantsByOwner[g.Owner], g)
                }
        }
        s.logger.Info(ctx, fmt.Sprintf("found %d dormant grants", len(dormantGrants)), "grant_ids", dormantGrantsIDs, "provider_urn", provider.URN)

        if criteria.DryRun {
                s.logger.Info(ctx, "dry run mode, skipping updating grants expiration date", "provider_urn", provider.URN)
                return nil
        }

        if err := s.repo.BulkUpsert(ctx, dormantGrants); err != nil {
                return fmt.Errorf("updating grants expiration date: %w", err)
        }

        var notifications []domain.Notification
prepare_notifications:
        for owner, grants := range dormantGrantsByOwner {
                var grantsMap []map[string]interface{}
                var grantIDs []string

                for _, g := range grants {
                        grantMap, err := utils.StructToMap(g)
                        if err != nil {
                                s.logger.Error(ctx, "failed to convert grant to map", "error", err)
                                continue prepare_notifications
                        }
                        grantsMap = append(grantsMap, grantMap)
                }

                notifications = append(notifications, domain.Notification{
                        User: owner,
                        Labels: map[string]string{
                                "owner":     owner,
                                "grant_ids": strings.Join(grantIDs, ", "),
                        },
                        Message: domain.NotificationMessage{
                                Type: domain.NotificationTypeUnusedGrant,
                                Variables: map[string]interface{}{
                                        "dormant_grants":       grantsMap,
                                        "period":               criteria.Period.String(),
                                        "retain_duration":      criteria.RetainDuration.String(),
                                        "start_date_formatted": startDate.Format("Jan 02, 2006 15:04:05 UTC"),
                                },
                        },
                })
        }

        if errs := s.notifier.Notify(ctx, notifications); errs != nil {
                for _, err1 := range errs {
                        s.logger.Error(ctx, "failed to send notifications", "error", err1.Error(), "provider_urn", provider.URN)
                }
        }

        return nil
}

func getAccountSignature(accountType, accountID string) string {
        return fmt.Sprintf("%s:%s", accountType, accountID)
}

func groupAccessEntriesByAccount(accessEntries []domain.AccessEntry) map[string][]domain.AccessEntry {
        result := map[string][]domain.AccessEntry{}
        for _, ae := range accessEntries {
                accountSignature := getAccountSignature(ae.AccountType, ae.AccountID)
                result[accountSignature] = append(result[accountSignature], ae)
        }
        return result
}

// reduceGrantsByProviderRole reduces grants based on configured roles in the provider's resource config and returns reduced grants containing the Role according to the resource config
func reduceGrantsByProviderRole(rc domain.ResourceConfig, grants []*domain.Grant) (reducedGrants []*domain.Grant) {
        grantsGroupedByPermission := map[string]*domain.Grant{}
        var allGrantPermissions []string
        for _, g := range grants {
                // TODO: validate if permissions is empty
                allGrantPermissions = append(allGrantPermissions, g.Permissions[0])
                grantsGroupedByPermission[g.Permissions[0]] = g
        }
        sort.Strings(allGrantPermissions)

        // prioritize roles with more permissions
        sort.Slice(rc.Roles, func(i, j int) bool {
                return len(rc.Roles[i].Permissions) > len(rc.Roles[j].Permissions)
        })
        for _, role := range rc.Roles {
                rolePermissions := role.GetOrderedPermissions()
                if containing, headIndex := utils.SubsliceExists(allGrantPermissions, rolePermissions); containing {
                        sampleGrant := grantsGroupedByPermission[rolePermissions[0]]
                        sampleGrant.Role = role.ID
                        sampleGrant.Permissions = rolePermissions
                        reducedGrants = append(reducedGrants, sampleGrant)

                        for _, p := range rolePermissions {
                                // delete combined grants
                                delete(grantsGroupedByPermission, p)
                        }
                        allGrantPermissions = append(allGrantPermissions[:headIndex], allGrantPermissions[headIndex+1:]...)
                }
        }

        if len(grantsGroupedByPermission) > 0 {
                // add remaining grants with non-registered provider role
                for _, g := range grantsGroupedByPermission {
                        reducedGrants = append(reducedGrants, g)
                }
        }

        return
}

func getGrantIDs(grants []domain.Grant) []string {
        var ids []string
        for _, g := range grants {
                ids = append(ids, g.ID)
        }
        return ids
}

func (s *Service) GetGrantsTotalCount(ctx context.Context, filters domain.ListGrantsFilter) (int64, error) {
        return s.repo.GetGrantsTotalCount(ctx, filters)
}

func (s *Service) ListUserRoles(ctx context.Context, owner string) ([]string, error) {
        if owner == "" {
                return nil, ErrEmptyOwner
        }
        return s.repo.ListUserRoles(ctx, owner)
}

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