frostfs-s3-gw/api/layer/notifications.go

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package layer
import (
"bytes"
"context"
"encoding/xml"
errorsStd "errors"
"fmt"
"github.com/nspcc-dev/neofs-s3-gw/api"
"github.com/nspcc-dev/neofs-s3-gw/api/data"
"go.uber.org/zap"
)
type PutBucketNotificationConfigurationParams struct {
RequestInfo *api.ReqInfo
BktInfo *data.BucketInfo
Configuration *data.NotificationConfiguration
}
func (n *layer) PutBucketNotificationConfiguration(ctx context.Context, p *PutBucketNotificationConfigurationParams) error {
confXML, err := xml.Marshal(p.Configuration)
if err != nil {
return fmt.Errorf("marshal notify configuration: %w", err)
}
sysName := p.BktInfo.NotificationConfigurationObjectName()
prm := PrmObjectCreate{
Container: p.BktInfo.CID,
Creator: p.BktInfo.Owner,
Payload: bytes.NewReader(confXML),
Filename: sysName,
}
objID, _, err := n.objectPutAndHash(ctx, prm, p.BktInfo)
if err != nil {
return err
}
objIDToDelete, err := n.treeService.PutNotificationConfigurationNode(ctx, &p.BktInfo.CID, objID)
if err != nil {
return err
}
if objIDToDelete != nil {
if err = n.objectDelete(ctx, p.BktInfo, *objIDToDelete); err != nil {
n.log.Error("couldn't delete notification configuration object", zap.Error(err),
zap.String("cnrID", p.BktInfo.CID.EncodeToString()),
zap.String("bucket name", p.BktInfo.Name),
zap.String("objID", objIDToDelete.EncodeToString()))
}
}
if err = n.systemCache.PutNotificationConfiguration(systemObjectKey(p.BktInfo, sysName), p.Configuration); err != nil {
n.log.Error("couldn't cache system object", zap.Error(err))
}
return nil
}
func (n *layer) GetBucketNotificationConfiguration(ctx context.Context, bktInfo *data.BucketInfo) (*data.NotificationConfiguration, error) {
systemCacheKey := systemObjectKey(bktInfo, bktInfo.NotificationConfigurationObjectName())
if conf := n.systemCache.GetNotificationConfiguration(systemCacheKey); conf != nil {
return conf, nil
}
objID, err := n.treeService.GetNotificationConfigurationNode(ctx, &bktInfo.CID)
if err != nil && !errorsStd.Is(err, ErrNodeNotFound) {
return nil, err
}
conf := &data.NotificationConfiguration{}
if objID != nil {
obj, err := n.objectGet(ctx, bktInfo, *objID)
if err != nil {
return nil, err
}
if err = xml.Unmarshal(obj.Payload(), &conf); err != nil {
return nil, fmt.Errorf("unmarshal notify configuration: %w", err)
}
}
if err = n.systemCache.PutNotificationConfiguration(systemCacheKey, conf); err != nil {
n.log.Warn("couldn't put system meta to objects cache",
zap.Stringer("bucket id", bktInfo.CID),
zap.Error(err))
}
return conf, nil
}