frostfs-s3-gw/api/handler/versioning.go

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package handler
import (
"encoding/xml"
"net/http"
"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
)
func (h *handler) PutBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
reqInfo := middleware.GetReqInfo(r.Context())
configuration := new(VersioningConfiguration)
if err := xml.NewDecoder(r.Body).Decode(configuration); err != nil {
h.logAndSendError(w, "couldn't decode versioning configuration", reqInfo, errors.GetAPIError(errors.ErrIllegalVersioningConfigurationException))
return
}
bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
if err != nil {
h.logAndSendError(w, "could not get bucket info", reqInfo, err)
return
}
settings, err := h.obj.GetBucketSettings(r.Context(), bktInfo)
if err != nil {
h.logAndSendError(w, "couldn't get bucket settings", reqInfo, err)
return
}
if configuration.Status != data.VersioningEnabled && configuration.Status != data.VersioningSuspended {
h.logAndSendError(w, "invalid versioning configuration", reqInfo, errors.GetAPIError(errors.ErrMalformedXML))
return
}
// settings pointer is stored in the cache, so modify a copy of the settings
newSettings := *settings
newSettings.Versioning = configuration.Status
p := &layer.PutSettingsParams{
BktInfo: bktInfo,
Settings: &newSettings,
}
if p.Settings.VersioningSuspended() && bktInfo.ObjectLockEnabled {
h.logAndSendError(w, "couldn't suspend bucket versioning", reqInfo, errors.GetAPIError(errors.ErrObjectLockConfigurationVersioningCannotBeChanged))
return
}
if err = h.obj.PutBucketSettings(r.Context(), p); err != nil {
h.logAndSendError(w, "couldn't put update versioning settings", reqInfo, err)
}
}
// GetBucketVersioningHandler implements bucket versioning getter handler.
func (h *handler) GetBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
reqInfo := middleware.GetReqInfo(r.Context())
bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
if err != nil {
h.logAndSendError(w, "could not get bucket info", reqInfo, err)
return
}
settings, err := h.obj.GetBucketSettings(r.Context(), bktInfo)
if err != nil {
h.logAndSendError(w, "couldn't get version settings", reqInfo, err)
return
}
if err = middleware.EncodeToResponse(w, formVersioningConfiguration(settings)); err != nil {
h.logAndSendError(w, "something went wrong", reqInfo, err)
}
}
func formVersioningConfiguration(settings *data.BucketSettings) *VersioningConfiguration {
res := &VersioningConfiguration{}
if !settings.Unversioned() {
res.Status = settings.Versioning
}
return res
}