46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
// Package logtransport provides a transport that logs all of its messages.
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package tunnelrpc
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import (
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"bytes"
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"context"
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"github.com/cloudflare/cloudflared/logger"
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"zombiezen.com/go/capnproto2/encoding/text"
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"zombiezen.com/go/capnproto2/rpc"
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rpccapnp "zombiezen.com/go/capnproto2/std/capnp/rpc"
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)
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type transport struct {
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rpc.Transport
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l logger.Service
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}
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// NewTransportLogger creates a new logger that proxies messages to and from t and
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// logs them to l. If l is nil, then the log package's default
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// logger is used.
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func NewTransportLogger(l logger.Service, t rpc.Transport) rpc.Transport {
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return &transport{Transport: t, l: l}
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}
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func (t *transport) SendMessage(ctx context.Context, msg rpccapnp.Message) error {
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t.l.Debugf("rpcconnect: tx %s", formatMsg(msg))
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return t.Transport.SendMessage(ctx, msg)
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}
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func (t *transport) RecvMessage(ctx context.Context) (rpccapnp.Message, error) {
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msg, err := t.Transport.RecvMessage(ctx)
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if err != nil {
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t.l.Debugf("rpcconnect: rx error: %s", err)
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return msg, err
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}
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t.l.Debugf("rpcconnect: rx %s", formatMsg(msg))
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return msg, nil
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}
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func formatMsg(m rpccapnp.Message) string {
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var buf bytes.Buffer
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text.NewEncoder(&buf).Encode(0x91b79f1f808db032, m.Struct)
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return buf.String()
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}
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