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postprocessing.go
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postprocessing.go
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package scraper
import (
"context"
"regexp"
"strings"
"github.com/stashapp/stash/pkg/logger"
stash_config "github.com/stashapp/stash/pkg/manager/config"
"github.com/stashapp/stash/pkg/match"
"github.com/stashapp/stash/pkg/models"
)
// postScrape handles post-processing of scraped content. If the content
// requires post-processing, this function fans out to the given content
// type and post-processes it.
func (c Cache) postScrape(ctx context.Context, content models.ScrapedContent) (models.ScrapedContent, error) {
// Analyze the concrete type, call the right post-processing function
switch v := content.(type) {
case *models.ScrapedPerformer:
if v != nil {
return c.postScrapePerformer(ctx, *v)
}
case models.ScrapedPerformer:
return c.postScrapePerformer(ctx, v)
case *models.ScrapedScene:
if v != nil {
return c.postScrapeScene(ctx, *v)
}
case models.ScrapedScene:
return c.postScrapeScene(ctx, v)
case *models.ScrapedGallery:
if v != nil {
return c.postScrapeGallery(ctx, *v)
}
case models.ScrapedGallery:
return c.postScrapeGallery(ctx, v)
case *models.ScrapedMovie:
if v != nil {
return c.postScrapeMovie(ctx, *v)
}
case models.ScrapedMovie:
return c.postScrapeMovie(ctx, v)
}
// If nothing matches, pass the content through
return content, nil
}
func (c Cache) postScrapePerformer(ctx context.Context, p models.ScrapedPerformer) (models.ScrapedContent, error) {
if err := c.txnManager.WithReadTxn(ctx, func(r models.ReaderRepository) error {
tqb := r.Tag()
tags, err := postProcessTags(tqb, p.Tags)
if err != nil {
return err
}
p.Tags = tags
return nil
}); err != nil {
return nil, err
}
// post-process - set the image if applicable
if err := setPerformerImage(ctx, c.client, &p, c.globalConfig); err != nil {
logger.Warnf("Could not set image using URL %s: %s", *p.Image, err.Error())
}
return p, nil
}
func (c Cache) postScrapeMovie(ctx context.Context, m models.ScrapedMovie) (models.ScrapedContent, error) {
if m.Studio != nil {
if err := c.txnManager.WithReadTxn(ctx, func(r models.ReaderRepository) error {
return match.ScrapedStudio(r.Studio(), m.Studio, nil)
}); err != nil {
return nil, err
}
}
// post-process - set the image if applicable
if err := setMovieFrontImage(ctx, c.client, &m, c.globalConfig); err != nil {
logger.Warnf("could not set front image using URL %s: %v", *m.FrontImage, err)
}
if err := setMovieBackImage(ctx, c.client, &m, c.globalConfig); err != nil {
logger.Warnf("could not set back image using URL %s: %v", *m.BackImage, err)
}
return m, nil
}
func (c Cache) postScrapeScenePerformer(ctx context.Context, p models.ScrapedPerformer) error {
if err := c.txnManager.WithReadTxn(ctx, func(r models.ReaderRepository) error {
tqb := r.Tag()
tags, err := postProcessTags(tqb, p.Tags)
if err != nil {
return err
}
p.Tags = tags
return nil
}); err != nil {
return err
}
return nil
}
func (c Cache) postScrapeScene(ctx context.Context, scene models.ScrapedScene) (models.ScrapedContent, error) {
if err := c.txnManager.WithReadTxn(ctx, func(r models.ReaderRepository) error {
pqb := r.Performer()
mqb := r.Movie()
tqb := r.Tag()
sqb := r.Studio()
for _, p := range scene.Performers {
if p == nil {
continue
}
if err := c.postScrapeScenePerformer(ctx, *p); err != nil {
return err
}
if err := match.ScrapedPerformer(pqb, p, nil); err != nil {
return err
}
}
for _, p := range scene.Movies {
err := match.ScrapedMovie(mqb, p)
if err != nil {
return err
}
}
tags, err := postProcessTags(tqb, scene.Tags)
if err != nil {
return err
}
scene.Tags = tags
if scene.Studio != nil {
err := match.ScrapedStudio(sqb, scene.Studio, nil)
if err != nil {
return err
}
}
return nil
}); err != nil {
return nil, err
}
// post-process - set the image if applicable
if err := setSceneImage(ctx, c.client, &scene, c.globalConfig); err != nil {
logger.Warnf("Could not set image using URL %s: %v", *scene.Image, err)
}
return scene, nil
}
func (c Cache) postScrapeGallery(ctx context.Context, g models.ScrapedGallery) (models.ScrapedContent, error) {
if err := c.txnManager.WithReadTxn(ctx, func(r models.ReaderRepository) error {
pqb := r.Performer()
tqb := r.Tag()
sqb := r.Studio()
for _, p := range g.Performers {
err := match.ScrapedPerformer(pqb, p, nil)
if err != nil {
return err
}
}
tags, err := postProcessTags(tqb, g.Tags)
if err != nil {
return err
}
g.Tags = tags
if g.Studio != nil {
err := match.ScrapedStudio(sqb, g.Studio, nil)
if err != nil {
return err
}
}
return nil
}); err != nil {
return nil, err
}
return g, nil
}
func postProcessTags(tqb models.TagReader, scrapedTags []*models.ScrapedTag) ([]*models.ScrapedTag, error) {
var ret []*models.ScrapedTag
excludePatterns := stash_config.GetInstance().GetScraperExcludeTagPatterns()
var excludeRegexps []*regexp.Regexp
for _, excludePattern := range excludePatterns {
reg, err := regexp.Compile(strings.ToLower(excludePattern))
if err != nil {
logger.Errorf("Invalid tag exclusion pattern :%v", err)
} else {
excludeRegexps = append(excludeRegexps, reg)
}
}
var ignoredTags []string
ScrapeTag:
for _, t := range scrapedTags {
for _, reg := range excludeRegexps {
if reg.MatchString(strings.ToLower(t.Name)) {
ignoredTags = append(ignoredTags, t.Name)
continue ScrapeTag
}
}
err := match.ScrapedTag(tqb, t)
if err != nil {
return nil, err
}
ret = append(ret, t)
}
if len(ignoredTags) > 0 {
logger.Infof("Scraping ignored tags: %s", strings.Join(ignoredTags, ", "))
}
return ret, nil
}