forked from TrueCloudLab/frostfs-s3-gw
143 lines
3.6 KiB
Go
143 lines
3.6 KiB
Go
package handler
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"net/http"
|
|
|
|
"github.com/gorilla/mux"
|
|
"github.com/nspcc-dev/neofs-s3-gw/api"
|
|
"github.com/nspcc-dev/neofs-s3-gw/api/layer"
|
|
"go.uber.org/zap"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/status"
|
|
)
|
|
|
|
const sizeToDetectType = 512
|
|
|
|
func getRangeToDetectContentType(maxSize int64) *layer.RangeParams {
|
|
end := uint64(maxSize)
|
|
if sizeToDetectType < end {
|
|
end = sizeToDetectType
|
|
}
|
|
|
|
return &layer.RangeParams{
|
|
Start: 0,
|
|
End: end - 1,
|
|
}
|
|
}
|
|
|
|
func (h *handler) checkIsFolder(ctx context.Context, bucket, object string) *layer.ObjectInfo {
|
|
if ln := len(object); ln > 0 && object[ln-1:] != layer.PathSeparator {
|
|
return nil
|
|
}
|
|
|
|
_, dirname := layer.NameFromString(object)
|
|
params := &layer.ListObjectsParams{Bucket: bucket, Prefix: dirname, Delimiter: layer.PathSeparator}
|
|
|
|
if list, err := h.obj.ListObjects(ctx, params); err == nil && len(list.Objects) > 0 {
|
|
return &layer.ObjectInfo{
|
|
Bucket: bucket,
|
|
Name: object,
|
|
|
|
ContentType: "text/directory",
|
|
|
|
Owner: list.Objects[0].Owner,
|
|
Created: list.Objects[0].Created,
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (h *handler) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
var (
|
|
err error
|
|
inf *layer.ObjectInfo
|
|
|
|
req = mux.Vars(r)
|
|
bkt = req["bucket"]
|
|
obj = req["object"]
|
|
rid = api.GetRequestID(r.Context())
|
|
)
|
|
|
|
if inf = h.checkIsFolder(r.Context(), bkt, obj); inf != nil {
|
|
// do nothing for folders
|
|
|
|
// h.log.Debug("found folder",
|
|
// zap.String("request_id", rid),
|
|
// zap.String("bucket_name", bkt),
|
|
// zap.String("object_name", obj))
|
|
} else if inf, err = h.obj.GetObjectInfo(r.Context(), bkt, obj); err != nil {
|
|
h.log.Error("could not fetch object info",
|
|
zap.String("request_id", rid),
|
|
zap.String("bucket_name", bkt),
|
|
zap.String("object_name", obj),
|
|
zap.Error(err))
|
|
|
|
api.WriteErrorResponse(r.Context(), w, api.Error{
|
|
Code: api.GetAPIError(api.ErrInternalError).Code,
|
|
Description: err.Error(),
|
|
HTTPStatusCode: http.StatusInternalServerError,
|
|
}, r.URL)
|
|
|
|
return
|
|
}
|
|
buffer := bytes.NewBuffer(make([]byte, 0, sizeToDetectType))
|
|
getParams := &layer.GetObjectParams{
|
|
Bucket: inf.Bucket,
|
|
Object: inf.Name,
|
|
Writer: buffer,
|
|
Range: getRangeToDetectContentType(inf.Size),
|
|
}
|
|
if err = h.obj.GetObject(r.Context(), getParams); err != nil {
|
|
h.log.Error("could not get object",
|
|
zap.String("request_id", rid),
|
|
zap.String("bucket_name", bkt),
|
|
zap.String("object_name", obj),
|
|
zap.Stringer("oid", inf.ID()),
|
|
zap.Error(err))
|
|
|
|
api.WriteErrorResponse(r.Context(), w, api.Error{
|
|
Code: api.GetAPIError(api.ErrInternalError).Code,
|
|
Description: err.Error(),
|
|
HTTPStatusCode: http.StatusInternalServerError,
|
|
}, r.URL)
|
|
|
|
return
|
|
}
|
|
inf.ContentType = http.DetectContentType(buffer.Bytes())
|
|
writeHeaders(w.Header(), inf)
|
|
w.WriteHeader(http.StatusOK)
|
|
}
|
|
|
|
func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
var (
|
|
req = mux.Vars(r)
|
|
bkt = req["bucket"]
|
|
rid = api.GetRequestID(r.Context())
|
|
)
|
|
|
|
if _, err := h.obj.GetBucketInfo(r.Context(), bkt); err != nil {
|
|
h.log.Error("could not fetch object info",
|
|
zap.String("request_id", rid),
|
|
zap.String("bucket_name", bkt),
|
|
zap.Error(err))
|
|
|
|
code := http.StatusBadRequest
|
|
if st, ok := status.FromError(err); ok && st != nil {
|
|
switch st.Code() { //nolint:exhaustive // we have default value set above
|
|
case codes.NotFound:
|
|
code = http.StatusNotFound
|
|
case codes.PermissionDenied:
|
|
code = http.StatusForbidden
|
|
}
|
|
}
|
|
|
|
api.WriteResponse(w, code, nil, api.MimeNone)
|
|
|
|
return
|
|
}
|
|
|
|
api.WriteResponse(w, http.StatusOK, nil, api.MimeNone)
|
|
}
|