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any-sync/commonspace/object/acl/syncacl/syncaclhandler.go
2023-07-03 18:19:23 +02:00

82 lines
2.6 KiB
Go

package syncacl
import (
"context"
"errors"
"github.com/anyproto/any-sync/commonspace/object/acl/list"
"github.com/anyproto/any-sync/commonspace/objectsync/synchandler"
"github.com/anyproto/any-sync/commonspace/spacesyncproto"
"github.com/anyproto/any-sync/commonspace/syncstatus"
"github.com/anyproto/any-sync/consensus/consensusproto"
"github.com/gogo/protobuf/proto"
)
var (
ErrMessageIsRequest = errors.New("message is request")
ErrMessageIsNotRequest = errors.New("message is not request")
)
type syncAclHandler struct {
aclList list.AclList
syncClient SyncClient
syncProtocol AclSyncProtocol
syncStatus syncstatus.StatusUpdater
spaceId string
}
func newSyncAclHandler(spaceId string, aclList list.AclList, syncClient SyncClient, syncStatus syncstatus.StatusUpdater) synchandler.SyncHandler {
return &syncAclHandler{
aclList: aclList,
syncClient: syncClient,
syncProtocol: newAclSyncProtocol(spaceId, aclList, syncClient),
syncStatus: syncStatus,
spaceId: spaceId,
}
}
func (s *syncAclHandler) HandleMessage(ctx context.Context, senderId string, message *spacesyncproto.ObjectSyncMessage) (err error) {
unmarshalled := &consensusproto.LogSyncMessage{}
err = proto.Unmarshal(message.Payload, unmarshalled)
if err != nil {
return
}
content := unmarshalled.GetContent()
head := consensusproto.GetHead(unmarshalled)
s.syncStatus.HeadsReceive(senderId, s.aclList.Id(), []string{head})
s.aclList.Lock()
defer s.aclList.Unlock()
switch {
case content.GetHeadUpdate() != nil:
var syncReq *consensusproto.LogSyncMessage
syncReq, err = s.syncProtocol.HeadUpdate(ctx, senderId, content.GetHeadUpdate())
if err != nil || syncReq == nil {
return
}
return s.syncClient.QueueRequest(senderId, syncReq)
case content.GetFullSyncRequest() != nil:
return ErrMessageIsRequest
case content.GetFullSyncResponse() != nil:
return s.syncProtocol.FullSyncResponse(ctx, senderId, content.GetFullSyncResponse())
}
return
}
func (s *syncAclHandler) HandleRequest(ctx context.Context, senderId string, request *spacesyncproto.ObjectSyncMessage) (response *spacesyncproto.ObjectSyncMessage, err error) {
unmarshalled := &consensusproto.LogSyncMessage{}
err = proto.Unmarshal(request.Payload, unmarshalled)
if err != nil {
return
}
fullSyncRequest := unmarshalled.GetContent().GetFullSyncRequest()
if fullSyncRequest == nil {
return nil, ErrMessageIsNotRequest
}
s.aclList.Lock()
defer s.aclList.Unlock()
aclResp, err := s.syncProtocol.FullSyncRequest(ctx, senderId, fullSyncRequest)
if err != nil {
return
}
return spacesyncproto.MarshallSyncMessage(aclResp, s.spaceId, s.aclList.Id())
}