77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
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package connection
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import (
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"github.com/cloudflare/cloudflared/edgediscovery"
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"github.com/cloudflare/cloudflared/h2mux"
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tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
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"github.com/prometheus/client_golang/prometheus"
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)
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const (
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DuplicateConnectionError = "EDUPCONN"
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)
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// RegisterTunnel error from client
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type clientRegisterTunnelError struct {
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cause error
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}
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func newRPCError(cause error, counter *prometheus.CounterVec, name rpcName) clientRegisterTunnelError {
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counter.WithLabelValues(cause.Error(), string(name)).Inc()
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return clientRegisterTunnelError{cause: cause}
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}
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func (e clientRegisterTunnelError) Error() string {
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return e.cause.Error()
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}
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type DupConnRegisterTunnelError struct{}
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var errDuplicationConnection = &DupConnRegisterTunnelError{}
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func (e DupConnRegisterTunnelError) Error() string {
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return "already connected to this server, trying another address"
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}
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// RegisterTunnel error from server
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type serverRegisterTunnelError struct {
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cause error
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permanent bool
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}
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func (e serverRegisterTunnelError) Error() string {
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return e.cause.Error()
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}
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func serverRegistrationErrorFromRPC(err error) *serverRegisterTunnelError {
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if retryable, ok := err.(*tunnelpogs.RetryableError); ok {
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return &serverRegisterTunnelError{
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cause: retryable.Unwrap(),
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permanent: false,
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}
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}
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return &serverRegisterTunnelError{
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cause: err,
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permanent: true,
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}
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}
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type muxerShutdownError struct{}
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func (e muxerShutdownError) Error() string {
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return "muxer shutdown"
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}
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func isHandshakeErrRecoverable(err error, connIndex uint8, observer *Observer) bool {
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switch err.(type) {
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case edgediscovery.DialError:
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observer.Errorf("Connection %d unable to dial edge: %s", connIndex, err)
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case h2mux.MuxerHandshakeError:
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observer.Errorf("Connection %d handshake with edge server failed: %s", connIndex, err)
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default:
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observer.Errorf("Connection %d failed: %s", connIndex, err)
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return false
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}
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return true
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}
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