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feat(filters): validate filter size (#1263)

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* update comments

* refactor, fail on malformed size constraints

* refactor validation, add failing test

* unify in ReleaseSizeOkay, refactor test

* validate filter limit parseability

* logging improvement

* refactor. more clear, explicit parsing step

* inline, add log

* comment tweak

* pass error with more info

* tweak parsedSizeLimits interface
This commit is contained in:
Frederick Robinson 2023-11-20 09:41:53 -08:00 • committed by GitHub
parent b7a8f6e6ed
commit 8d3921fd3b
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 149 additions and 131 deletions
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77
internal/filter/service.go
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@ -24,7 +24,6 @@ import (
"github.com/autobrr/autobrr/pkg/errors"
"github.com/avast/retry-go/v4"
"github.com/dustin/go-humanize"
"github.com/mattn/go-shellwords"
"github.com/rs/zerolog"
)
@ -113,20 +112,18 @@ func (s *service) ListFilters(ctx context.Context) ([]domain.Filter, error) {
}
func (s *service) FindByID(ctx context.Context, filterID int) (*domain.Filter, error) {
// find filter
filter, err := s.repo.FindByID(ctx, filterID)
if err != nil {
s.log.Error().Err(err).Msgf("could not find filter for id: %v", filterID)
return nil, err
}
// find actions and attach
actions, err := s.actionRepo.FindByFilterID(ctx, filter.ID)
if err != nil {
s.log.Error().Msgf("could not find filter actions for filter id: %v", filter.ID)
s.log.Error().Err(err).Msgf("could not find filter actions for filter id: %v", filter.ID)
}
filter.Actions = actions
// find indexers and attach
indexers, err := s.indexerSvc.FindByFilterID(ctx, filter.ID)
if err != nil {
s.log.Error().Err(err).Msgf("could not find indexers for filter: %v", filter.Name)
@ -149,11 +146,12 @@ func (s *service) GetDownloadsByFilterId(ctx context.Context, filterID int) (*do
}
func (s *service) Store(ctx context.Context, filter *domain.Filter) error {
// validate data
if err := filter.Validate(); err != nil {
s.log.Error().Err(err).Msgf("invalid filter: %v", filter)
return err
}
// store
err := s.repo.Store(ctx, filter)
if err != nil {
if err := s.repo.Store(ctx, filter); err != nil {
s.log.Error().Err(err).Msgf("could not store filter: %v", filter)
return err
}
@ -162,9 +160,9 @@ func (s *service) Store(ctx context.Context, filter *domain.Filter) error {
}
func (s *service) Update(ctx context.Context, filter *domain.Filter) error {
// validate data
if filter.Name == "" {
return errors.New("validation: name can't be empty")
if err := filter.Validate(); err != nil {
s.log.Error().Err(err).Msgf("invalid filter: %v", filter)
return err
}
// replace newline with comma
@ -375,11 +373,9 @@ func (s *service) CheckFilter(ctx context.Context, f domain.Filter, release *dom
s.log.Debug().Msgf("filter.Service.CheckFilter: found and matched filter: %s", f.Name)
// Some indexers do not announce the size and if size (min,max) is set in a filter then it will need
// additional size check. Some indexers have api implemented to fetch this data and for the others
// it will download the torrent file to parse and make the size check. This is all to minimize the amount of downloads.
// do additional size check against indexer api or download torrent for size check
// If size constraints are set in a filter and the indexer did not
// announce the size, we need to do an additional out of band size
// check.
if release.AdditionalSizeCheckRequired {
s.log.Debug().Msgf("filter.Service.CheckFilter: (%s) additional size check required", f.Name)
@ -416,10 +412,13 @@ func (s *service) CheckFilter(ctx context.Context, f domain.Filter, release *dom
return false, nil
}
// AdditionalSizeCheck
// Some indexers do not announce the size and if size (min,max) is set in a filter then it will need
// additional size check. Some indexers have api implemented to fetch this data and for the others
// it will download the torrent file to parse and make the size check. This is all to minimize the amount of downloads.
// AdditionalSizeCheck performs additional out of band checks to determine the
// size of a torrent. Some indexers do not announce torrent size, so it is
// necessary to determine the size of the torrent in some other way. Some
// indexers have an API implemented to fetch this data. For those which don't,
// it is necessary to download the torrent file and parse it to make the size
// check. We use the API where available to minimize the number of torrents we
// need to download.
func (s *service) AdditionalSizeCheck(ctx context.Context, f domain.Filter, release *domain.Release) (bool, error) {
var err error
defer func() {
@ -457,13 +456,13 @@ func (s *service) AdditionalSizeCheck(ctx context.Context, f domain.Filter, rele
}
// compare size against filter
match, err := checkSizeFilter(f.MinSize, f.MaxSize, release.Size)
sizeErr, err := f.CheckReleaseSize(release.Size)
if err != nil {
s.log.Error().Stack().Err(err).Msgf("filter.Service.AdditionalSizeCheck: (%s) error checking extra size filter", f.Name)
return false, err
}
//no match, lets continue to next filter
if !match {
if sizeErr != nil {
s.log.Debug().Msgf("filter.Service.AdditionalSizeCheck: (%s) filter did not match after additional size check, trying next", f.Name)
return false, nil
}
@ -471,38 +470,6 @@ func (s *service) AdditionalSizeCheck(ctx context.Context, f domain.Filter, rele
return true, nil
}
func checkSizeFilter(minSize string, maxSize string, releaseSize uint64) (bool, error) {
// handle both min and max
if minSize != "" {
// string to bytes
minSizeBytes, err := humanize.ParseBytes(minSize)
if err != nil {
// log could not parse into bytes
}
if releaseSize <= minSizeBytes {
//r.addRejection("size: smaller than min size")
return false, nil
}
}
if maxSize != "" {
// string to bytes
maxSizeBytes, err := humanize.ParseBytes(maxSize)
if err != nil {
// log could not parse into bytes
}
if releaseSize >= maxSizeBytes {
//r.addRejection("size: larger than max size")
return false, nil
}
}
return true, nil
}
func (s *service) CanDownloadShow(ctx context.Context, release *domain.Release) (bool, error) {
return s.releaseRepo.CanDownloadShow(ctx, release.Title, release.Season, release.Episode)
}