s3browser-backend/internal/helper.go

111 lines
2.6 KiB
Go

package s3browser
import (
"context"
"fmt"
"path/filepath"
"strings"
"github.com/graph-gophers/dataloader"
"github.com/minio/minio-go/v7"
log "github.com/sirupsen/logrus"
)
func invalidateCache(ctx context.Context, id string) error {
loader, ok := ctx.Value("loader").(map[string]*dataloader.Loader)
if !ok {
return fmt.Errorf("Failed to get loader from context")
}
log.Debug("Invalidate cache for id: ", id)
path := getPathFromId(id)
loader["getFile"].Clear(ctx, dataloader.StringKey(id))
loader["getFiles"].Clear(ctx, dataloader.StringKey(path))
loader["listObjects"].Clear(ctx, dataloader.StringKey(path))
loader["listObjectsRecursive"].Clear(ctx, dataloader.StringKey(path))
return nil
}
func getPathFromId(id string) string {
dir := filepath.Dir(id)
if dir == "." {
return "/"
}
return nomalizeID(dir + "/")
}
func getFilenameFromID(id string) string {
return filepath.Base(id)
}
func invalidateCacheForDir(ctx context.Context, path string) error {
loader, ok := ctx.Value("loader").(map[string]*dataloader.Loader)
if !ok {
return fmt.Errorf("Failed to get loader from context")
}
log.Debug("Invalidate cache for dir: ", path)
parent := getParentDir(path)
log.Debug("Cache clear dir: ", path, " parent: ", parent)
loader["getFile"].Clear(ctx, dataloader.StringKey(path))
loader["listObjects"].Clear(ctx, dataloader.StringKey(path))
loader["listObjectsRecursive"].Clear(ctx, dataloader.StringKey(path))
loader["getFiles"].Clear(ctx, dataloader.StringKey(path))
loader["getDirs"].Clear(ctx, dataloader.StringKey(parent))
loader["listObjects"].Clear(ctx, dataloader.StringKey(parent))
loader["listObjectsRecursive"].Clear(ctx, dataloader.StringKey(parent))
return nil
}
func deleteMultiple(ctx context.Context, s3Client minio.Client, ids []minio.ObjectInfo) error {
log.Debug("Delte multiple")
objectsCh := make(chan minio.ObjectInfo, 1)
go func() {
defer close(objectsCh)
for _, id := range ids {
objectsCh <- id
}
}()
for err := range s3Client.RemoveObjects(ctx, bucketName, objectsCh, minio.RemoveObjectsOptions{}) {
log.Error("Failed to delete object ", err.ObjectName, " because: ", err.Err.Error())
// TODO: error handel
}
return nil
}
// nomalizeID makes sure there is a leading "/" in the id
func nomalizeID(id string) string {
if !strings.HasPrefix(id, "/") {
if id == "." {
return "/"
}
id = "/" + id
}
return id
}
func getParentDir(id string) string {
dirs := strings.Split(id, "/")
cut := 1
if strings.HasSuffix(id, "/") {
cut = 2
}
parent := strings.Join(dirs[:len(dirs)-cut], "/") + "/"
return nomalizeID(parent)
}