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[#274] Refactor system cache and cors

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Signed-off-by: Angira Kekteeva <kira@nspcc.ru>
This commit is contained in:
Angira Kekteeva 2021-10-13 21:50:02 +03:00 • committed by Alex Vanin
parent 5b4b9df031
commit 91bed76010
7 changed files with 192 additions and 159 deletions
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70
api/layer/cors.go
View file

@ -1,28 +1,66 @@
package layer
import (
"bytes"
"context"
"encoding/xml"
"fmt"
"io"
"github.com/nspcc-dev/neofs-s3-gw/api/data"
"github.com/nspcc-dev/neofs-s3-gw/api/errors"
"go.uber.org/zap"
)
const wildcard = "*"
var supportedMethods = map[string]struct{}{"GET": {}, "HEAD": {}, "POST": {}, "PUT": {}, "DELETE": {}}
func (n *layer) PutBucketCORS(ctx context.Context, p *PutCORSParams) error {
var (
buf bytes.Buffer
tee = io.TeeReader(p.Reader, &buf)
cors = &data.CORSConfiguration{}
)
if err := xml.NewDecoder(tee).Decode(cors); err != nil {
return err
}
if cors.CORSRules == nil {
return errors.GetAPIError(errors.ErrMalformedXML)
}
if err := checkCORS(cors); err != nil {
return err
}
s := &PutSystemObjectParams{
BktInfo: p.BktInfo,
ObjName: p.BktInfo.CORSObjectName(),
Metadata: map[string]string{},
Prefix: "",
Payload: p.CORSConfiguration,
Reader: &buf,
}
_, err := n.putSystemObject(ctx, s)
obj, err := n.putSystemObjectIntoNeoFS(ctx, s)
if err != nil {
return err
}
return err
if obj.Size == 0 {
return errors.GetAPIError(errors.ErrInternalError)
}
if err = n.systemCache.PutCORS(systemObjectKey(p.BktInfo, s.ObjName), cors); err != nil {
n.log.Error("couldn't cache system object", zap.Error(err))
}
return nil
}
func (n *layer) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) ([]byte, error) {
obj, err := n.getSystemObject(ctx, bktInfo, bktInfo.CORSObjectName())
func (n *layer) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (*data.CORSConfiguration, error) {
cors, err := n.getCORS(ctx, bktInfo, bktInfo.CORSObjectName())
if err != nil {
if errors.IsS3Error(err, errors.ErrNoSuchKey) {
return nil, errors.GetAPIError(errors.ErrNoSuchCORSConfiguration)
@ -30,13 +68,25 @@ func (n *layer) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) ([]
return nil, err
}
if obj.Payload() == nil {
return nil, errors.GetAPIError(errors.ErrInternalError)
}
return obj.Payload(), nil
return cors, nil
}
func (n *layer) DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) error {
return n.deleteSystemObject(ctx, bktInfo, bktInfo.CORSObjectName())
}
func checkCORS(cors *data.CORSConfiguration) error {
for _, r := range cors.CORSRules {
for _, m := range r.AllowedMethods {
if _, ok := supportedMethods[m]; !ok {
return errors.GetAPIErrorWithError(errors.ErrCORSUnsupportedMethod, fmt.Errorf("unsupported method is %s", m))
}
}
for _, h := range r.ExposeHeaders {
if h == wildcard {
return errors.GetAPIError(errors.ErrCORSWildcardExposeHeaders)
}
}
}
return nil
}