frostfs-s3-gw/api/layer/util.go
Evgeniy Kulikov 7deeb68d47 [#25] Migrate layer to NeoFS API v2
Naive migration, without any tries to start application

closes #25

Signed-off-by: Evgeniy Kulikov <kim@nspcc.ru>
2020-10-19 04:04:37 +03:00

96 lines
2.3 KiB
Go

package layer
import (
"net/http"
"os"
"strings"
"time"
"github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
)
type (
ObjectInfo struct {
Bucket string
Name string
Size int64
ContentType string
Created time.Time
Owner *owner.ID
Headers map[string]string
}
// ListObjectsInfo - container for list objects.
ListObjectsInfo struct {
// Indicates whether the returned list objects response is truncated. A
// value of true indicates that the list was truncated. The list can be truncated
// if the number of objects exceeds the limit allowed or specified
// by max keys.
IsTruncated bool
// When response is truncated (the IsTruncated element value in the response
// is true), you can use the key name in this field as marker in the subsequent
// request to get next set of objects.
//
// NOTE: This element is returned only if you have delimiter request parameter
// specified.
ContinuationToken string
NextContinuationToken string
// List of objects info for this request.
Objects []*ObjectInfo
// List of prefixes for this request.
Prefixes []string
}
)
const pathSeparator = string(os.PathSeparator)
func userHeaders(attrs []*object.Attribute) map[string]string {
result := make(map[string]string, len(attrs))
for _, attr := range attrs {
result[attr.GetKey()] = attr.GetValue()
}
return result
}
func objectInfoFromMeta(meta *object.Object) *ObjectInfo {
aws3name := meta.GetID().String()
userHeaders := userHeaders(meta.GetAttributes())
if name, ok := userHeaders[AWS3NameHeader]; ok {
aws3name = name
delete(userHeaders, name)
}
mimeType := http.DetectContentType(meta.GetPayload())
return &ObjectInfo{
Bucket: meta.GetContainerID().String(),
Name: aws3name,
ContentType: mimeType,
Headers: userHeaders,
Size: int64(meta.GetPayloadSize()),
Created: time.Now(), // time.Unix(meta.GetCreationEpoch(), 0),
}
}
func nameFromObject(o *object.Object) (string, string) {
var name = o.GetID().String()
for _, attr := range o.GetAttributes() {
if attr.GetKey() == AWS3NameHeader {
name = attr.GetValue()
break
}
}
ind := strings.LastIndex(name, pathSeparator)
return name[ind+1:], name[:ind+1]
}