/
quota.go
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/
quota.go
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// Copyright 2022-2023 Tigris Data, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package middleware
import (
"context"
middleware "github.com/grpc-ecosystem/go-grpc-middleware/v2"
api "github.com/tigrisdata/tigris/api/server/v1"
"github.com/tigrisdata/tigris/server/quota"
"github.com/tigrisdata/tigris/server/request"
"google.golang.org/grpc"
"google.golang.org/protobuf/proto"
)
type quotaStream struct {
namespace string
*middleware.WrappedServerStream
}
func quotaUnaryServerInterceptor() grpc.UnaryServerInterceptor {
return func(ctx context.Context, req any, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {
ns, _ := request.GetNamespace(ctx)
if m := info.FullMethod; m != api.HealthMethodName && !request.IsAdminApi(m) {
if err := quota.Allow(ctx, ns, proto.Size(req.(proto.Message)), request.IsWrite(ctx)); err != nil {
return nil, err
}
}
return handler(ctx, req)
}
}
func quotaStreamServerInterceptor() grpc.StreamServerInterceptor {
return func(srv any, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
if m := info.FullMethod; m != api.HealthMethodName && !request.IsAdminApi(m) {
ns, _ := request.GetNamespace(stream.Context())
wrapped := "aStream{
WrappedServerStream: middleware.WrapServerStream(stream),
namespace: ns,
}
return handler(srv, wrapped)
}
return handler(srv, stream)
}
}
func (w *quotaStream) RecvMsg(req any) error {
if err := quota.Allow(w.Context(), w.namespace, proto.Size(req.(proto.Message)), request.IsWrite(w.Context())); err != nil {
return err
}
return w.ServerStream.RecvMsg(req)
}
func (w *quotaStream) SendMsg(req any) error {
if err := quota.Wait(w.Context(), w.namespace, proto.Size(req.(proto.Message)), request.IsWrite(w.Context())); err != nil {
return err
}
return w.ServerStream.SendMsg(req)
}