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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.
56 lines
1.7 KiB
Go
56 lines
1.7 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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"net"
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"time"
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"github.com/google/uuid"
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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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// SessionClient calls capnp rpc methods of SessionManager.
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type SessionClient struct {
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client pogs.SessionManager_PogsClient
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transport rpc.Transport
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requestTimeout time.Duration
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}
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func NewSessionClient(ctx context.Context, stream io.ReadWriteCloser, requestTimeout time.Duration) (*SessionClient, error) {
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n, err := stream.Write(rpcStreamProtocolSignature[:])
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if err != nil {
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return nil, err
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}
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if n != len(rpcStreamProtocolSignature) {
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return nil, fmt.Errorf("expect to write %d bytes for RPC stream protocol signature, wrote %d", len(rpcStreamProtocolSignature), n)
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}
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transport := rpc.StreamTransport(stream)
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conn := rpc.NewConn(transport)
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return &SessionClient{
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client: pogs.NewSessionManager_PogsClient(conn.Bootstrap(ctx), conn),
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transport: transport,
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requestTimeout: requestTimeout,
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}, nil
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}
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func (c *SessionClient) RegisterUdpSession(ctx context.Context, sessionID uuid.UUID, dstIP net.IP, dstPort uint16, closeIdleAfterHint time.Duration, traceContext string) (*pogs.RegisterUdpSessionResponse, error) {
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ctx, cancel := context.WithTimeout(ctx, c.requestTimeout)
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defer cancel()
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return c.client.RegisterUdpSession(ctx, sessionID, dstIP, dstPort, closeIdleAfterHint, traceContext)
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}
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func (c *SessionClient) UnregisterUdpSession(ctx context.Context, sessionID uuid.UUID, message string) error {
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ctx, cancel := context.WithTimeout(ctx, c.requestTimeout)
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defer cancel()
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return c.client.UnregisterUdpSession(ctx, sessionID, message)
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}
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func (c *SessionClient) Close() {
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_ = c.client.Close()
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_ = c.transport.Close()
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}
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