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https://github.com/cloudflare/cloudflared.git
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eb2e4349e8
Combines the tunnelrpc and quic/schema capnp files into the same module. To help reduce future issues with capnp id generation, capnpids are provided in the capnp files from the existing capnp struct ids generated in the go files. Reduces the overall interface of the Capnp methods to the rest of the code by providing an interface that will handle the quic protocol selection. Introduces a new `rpc-timeout` config that will allow all of the SessionManager and ConfigurationManager RPC requests to have a timeout. The timeout for these values is set to 5 seconds as non of these operations for the managers should take a long time to complete. Removed the RPC-specific logger as it never provided good debugging value as the RPC method names were not visible in the logs.
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package quic
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import (
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"context"
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"fmt"
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"io"
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"time"
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"zombiezen.com/go/capnproto2/rpc"
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"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
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)
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// SessionManagerServer handles streams with the SessionManager RPCs.
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type SessionManagerServer struct {
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sessionManager pogs.SessionManager
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responseTimeout time.Duration
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}
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func NewSessionManagerServer(sessionManager pogs.SessionManager, responseTimeout time.Duration) *SessionManagerServer {
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return &SessionManagerServer{
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sessionManager: sessionManager,
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responseTimeout: responseTimeout,
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}
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}
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func (s *SessionManagerServer) Serve(ctx context.Context, stream io.ReadWriteCloser) error {
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signature, err := determineProtocol(stream)
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if err != nil {
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return err
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}
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switch signature {
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case rpcStreamProtocolSignature:
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break
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case dataStreamProtocolSignature:
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return errDataStreamNotSupported
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default:
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return fmt.Errorf("unknown protocol %v", signature)
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}
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// Every new quic.Stream request aligns to a new RPC request, this is why there is a timeout for the server-side
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// of the RPC request.
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ctx, cancel := context.WithTimeout(ctx, s.responseTimeout)
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defer cancel()
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transport := rpc.StreamTransport(stream)
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defer transport.Close()
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main := pogs.SessionManager_ServerToClient(s.sessionManager)
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rpcConn := rpc.NewConn(transport, rpc.MainInterface(main.Client))
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defer rpcConn.Close()
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select {
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case <-rpcConn.Done():
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return rpcConn.Err()
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case <-ctx.Done():
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return ctx.Err()
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}
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}
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