зеркало из https://github.com/github/vitess-gh.git
70 строки
1.6 KiB
Go
70 строки
1.6 KiB
Go
/*
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Copyright 2019 The Vitess Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package callinfo
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// This file implements the CallInfo interface for gRPC contexts.
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import (
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"fmt"
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"html/template"
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"context"
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"google.golang.org/grpc"
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"google.golang.org/grpc/peer"
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)
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// GRPCCallInfo returns an augmented context with a CallInfo structure,
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// only for gRPC contexts.
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func GRPCCallInfo(ctx context.Context) context.Context {
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method, ok := grpc.Method(ctx)
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if !ok {
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return ctx
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}
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callinfo := &gRPCCallInfoImpl{
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method: method,
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}
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peer, ok := peer.FromContext(ctx)
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if ok {
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callinfo.remoteAddr = peer.Addr.String()
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}
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return NewContext(ctx, callinfo)
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}
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type gRPCCallInfoImpl struct {
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method string
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remoteAddr string
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}
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func (gci *gRPCCallInfoImpl) RemoteAddr() string {
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return gci.remoteAddr
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}
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func (gci *gRPCCallInfoImpl) Username() string {
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return "gRPC"
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}
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func (gci *gRPCCallInfoImpl) Text() string {
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return fmt.Sprintf("%s:%s(gRPC)", gci.remoteAddr, gci.method)
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}
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func (gci *gRPCCallInfoImpl) HTML() template.HTML {
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return template.HTML("<b>Method:</b> " + gci.method + " <b>Remote Addr:</b> " + gci.remoteAddr)
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}
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