2024-05-24 18:40:10 +00:00
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package tunnelrpc
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import (
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"context"
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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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2024-05-28 21:14:25 +00:00
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"github.com/cloudflare/cloudflared/tunnelrpc/metrics"
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2024-05-24 18:40:10 +00:00
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"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
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)
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type RegistrationClient interface {
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RegisterConnection(
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ctx context.Context,
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auth pogs.TunnelAuth,
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tunnelID uuid.UUID,
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options *pogs.ConnectionOptions,
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connIndex uint8,
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edgeAddress net.IP,
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) (*pogs.ConnectionDetails, error)
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SendLocalConfiguration(ctx context.Context, config []byte) error
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GracefulShutdown(ctx context.Context, gracePeriod time.Duration)
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Close()
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}
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type registrationClient struct {
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client pogs.RegistrationServer_PogsClient
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transport rpc.Transport
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requestTimeout time.Duration
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}
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func NewRegistrationClient(ctx context.Context, stream io.ReadWriteCloser, requestTimeout time.Duration) RegistrationClient {
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transport := SafeTransport(stream)
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2024-06-26 20:34:49 +00:00
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conn := NewClientConn(transport)
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2024-05-24 18:40:10 +00:00
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client := pogs.NewRegistrationServer_PogsClient(conn.Bootstrap(ctx), conn)
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return ®istrationClient{
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client: client,
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transport: transport,
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requestTimeout: requestTimeout,
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}
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}
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func (r *registrationClient) RegisterConnection(
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ctx context.Context,
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auth pogs.TunnelAuth,
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tunnelID uuid.UUID,
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options *pogs.ConnectionOptions,
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connIndex uint8,
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edgeAddress net.IP,
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) (*pogs.ConnectionDetails, error) {
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ctx, cancel := context.WithTimeout(ctx, r.requestTimeout)
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defer cancel()
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2024-05-28 21:14:25 +00:00
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defer metrics.CapnpMetrics.ClientOperations.WithLabelValues(metrics.Registration, metrics.OperationRegisterConnection).Inc()
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timer := metrics.NewClientOperationLatencyObserver(metrics.Registration, metrics.OperationRegisterConnection)
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defer timer.ObserveDuration()
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conn, err := r.client.RegisterConnection(ctx, auth, tunnelID, connIndex, options)
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if err != nil {
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metrics.CapnpMetrics.ClientFailures.WithLabelValues(metrics.Registration, metrics.OperationRegisterConnection).Inc()
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}
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return conn, err
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2024-05-24 18:40:10 +00:00
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}
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func (r *registrationClient) SendLocalConfiguration(ctx context.Context, config []byte) error {
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ctx, cancel := context.WithTimeout(ctx, r.requestTimeout)
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defer cancel()
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2024-05-28 21:14:25 +00:00
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defer metrics.CapnpMetrics.ClientOperations.WithLabelValues(metrics.Registration, metrics.OperationUpdateLocalConfiguration).Inc()
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timer := metrics.NewClientOperationLatencyObserver(metrics.Registration, metrics.OperationUpdateLocalConfiguration)
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defer timer.ObserveDuration()
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err := r.client.SendLocalConfiguration(ctx, config)
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if err != nil {
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metrics.CapnpMetrics.ClientFailures.WithLabelValues(metrics.Registration, metrics.OperationUpdateLocalConfiguration).Inc()
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}
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return err
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2024-05-24 18:40:10 +00:00
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}
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func (r *registrationClient) GracefulShutdown(ctx context.Context, gracePeriod time.Duration) {
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ctx, cancel := context.WithTimeout(ctx, gracePeriod)
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defer cancel()
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2024-05-28 21:14:25 +00:00
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defer metrics.CapnpMetrics.ClientOperations.WithLabelValues(metrics.Registration, metrics.OperationUnregisterConnection).Inc()
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timer := metrics.NewClientOperationLatencyObserver(metrics.Registration, metrics.OperationUnregisterConnection)
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defer timer.ObserveDuration()
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err := r.client.UnregisterConnection(ctx)
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if err != nil {
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metrics.CapnpMetrics.ClientFailures.WithLabelValues(metrics.Registration, metrics.OperationUnregisterConnection).Inc()
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}
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2024-05-24 18:40:10 +00:00
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}
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func (r *registrationClient) Close() {
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// Closing the client will also close the connection
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_ = r.client.Close()
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// Closing the transport also closes the stream
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_ = r.transport.Close()
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}
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