/
memory.go
133 lines (110 loc) · 3.14 KB
/
memory.go
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package server
import (
"context"
"time"
"github.com/google/uuid"
"github.com/google/wire"
"github.com/puppetlabs/leg/timeutil/pkg/retry"
"github.com/puppetlabs/relay-pls/pkg/model"
"github.com/puppetlabs/relay-pls/pkg/opt"
"github.com/puppetlabs/relay-pls/pkg/plspb"
"google.golang.org/protobuf/types/known/timestamppb"
)
var InMemoryServerSet = wire.NewSet(
NewInMemoryServer,
)
type InMemoryServer struct {
plspb.UnimplementedLogServer
logMetadataManager model.LogMetadataManager
keyManager model.KeyManager
messages map[string][]*LogMessage
}
func (s *InMemoryServer) Create(ctx context.Context, in *plspb.LogCreateRequest) (*plspb.LogCreateResponse, error) {
if in.GetContext() == "" || in.GetName() == "" {
return nil, ErrInvalid
}
lm, err := s.logMetadataManager.Create(ctx,
&model.Log{
Context: in.Context,
Name: in.Name,
})
if err != nil {
return nil, err
}
return &plspb.LogCreateResponse{
LogId: lm.LogID,
}, nil
}
func (s *InMemoryServer) Delete(ctx context.Context, in *plspb.LogDeleteRequest) (*plspb.LogDeleteResponse, error) {
return nil, nil
}
func (s *InMemoryServer) List(in *plspb.LogListRequest, stream plspb.Log_ListServer) error {
return nil
}
func (s *InMemoryServer) MessageAppend(ctx context.Context, in *plspb.LogMessageAppendRequest) (*plspb.LogMessageAppendResponse, error) {
lmm, err := s.logMetadataManager.Get(ctx, in.GetLogId())
if err != nil {
return nil, err
}
ct, err := s.keyManager.Encrypt(ctx, lmm.Key, in.GetPayload())
if err != nil {
return nil, err
}
ts := time.Now()
if in.GetTimestamp() != nil {
ts = in.GetTimestamp().AsTime()
}
message := &LogMessage{
LogID: in.GetLogId(),
LogMessageID: uuid.New().String(),
Timestamp: ts,
EncryptedPayload: ct,
}
if s.messages == nil {
s.messages = make(map[string][]*LogMessage)
}
if s.messages[in.GetLogId()] == nil {
s.messages[in.GetLogId()] = make([]*LogMessage, 0)
}
s.messages[in.GetLogId()] = append(s.messages[in.GetLogId()], message)
return &plspb.LogMessageAppendResponse{
LogId: message.LogID,
LogMessageId: message.LogMessageID,
}, nil
}
func (s *InMemoryServer) MessageList(in *plspb.LogMessageListRequest, stream plspb.Log_MessageListServer) error {
ctx := context.Background()
lmm, err := s.logMetadataManager.Get(ctx, in.GetLogId())
if err != nil {
return err
}
for _, message := range s.messages[in.GetLogId()] {
payload, err := s.keyManager.Decrypt(ctx, lmm.Key, message.EncryptedPayload)
if err != nil {
return err
}
resp := &plspb.LogMessageListResponse{
LogMessageId: message.LogMessageID,
Payload: payload,
Timestamp: timestamppb.New(message.Timestamp),
}
err = retry.Wait(ctx, func(ctx context.Context) (bool, error) {
if serr := stream.Send(resp); serr != nil {
return false, serr
}
return true, nil
})
if err != nil {
return err
}
}
return nil
}
func NewInMemoryServer(cfg *opt.Config,
keyManager model.KeyManager, logMetadataManager model.LogMetadataManager) plspb.LogServer {
s := &InMemoryServer{
logMetadataManager: logMetadataManager,
keyManager: keyManager,
}
return s
}