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package s3
import (
"path"
"strings"
"github.com/minio/minio-go/v7"
)
type S3Class int
const (
ROOT S3Class = 1 << iota
BUCKET
COMMON_PREFIX
OBJECT
OPAQUE_KEY
KEY = COMMON_PREFIX | OBJECT | OPAQUE_KEY
)
type S3Path struct {
Path string
Class S3Class
Bucket string
Key string
}
func NewS3Path(p string) S3Path {
// Remove first dot, eq. relative directory == "/"
if len(p) > 0 && p[0] == '.' {
p = p[1:]
}
// Add the first slash if missing
p = "/" + p
// Clean path using golang tools
p = path.Clean(p)
exploded_path := strings.SplitN(p, "/", 3)
// If there is no bucket name (eg. "/")
if len(exploded_path) < 2 || exploded_path[1] == "" {
return S3Path{p, ROOT, "", ""}
}
// If there is no key
if len(exploded_path) < 3 || exploded_path[2] == "" {
return S3Path{p, BUCKET, exploded_path[1], ""}
}
return S3Path{p, OPAQUE_KEY, exploded_path[1], exploded_path[2]}
}
func NewTrustedS3Path(bucket string, obj minio.ObjectInfo) S3Path {
cl := OBJECT
if obj.Key[len(obj.Key)-1:] == "/" {
cl = COMMON_PREFIX
}
return S3Path{
Path: path.Join("/", bucket, obj.Key),
Bucket: bucket,
Key: obj.Key,
Class: cl,
}
}
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