mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-30 05:25:35 +00:00
c6fadd6d71
This eventually allows encoding packages that may respect the proposed encoding.TextAppender interface. The performance gains from this is between 10-30%. Updates tailscale/corp#14379 Signed-off-by: Joe Tsai <joetsai@digital-static.net>
126 lines
3.6 KiB
Go
126 lines
3.6 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package controlclient
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"reflect"
|
|
|
|
"tailscale.com/types/netmap"
|
|
"tailscale.com/types/persist"
|
|
"tailscale.com/types/structs"
|
|
)
|
|
|
|
// State is the high-level state of the client. It is used only in
|
|
// unit tests for proper sequencing, don't depend on it anywhere else.
|
|
//
|
|
// TODO(apenwarr): eliminate the state, as it's now obsolete.
|
|
//
|
|
// apenwarr: Historical note: controlclient.Auto was originally
|
|
// intended to be the state machine for the whole tailscale client, but that
|
|
// turned out to not be the right abstraction layer, and it moved to
|
|
// ipn.Backend. Since ipn.Backend now has a state machine, it would be
|
|
// much better if controlclient could be a simple stateless API. But the
|
|
// current server-side API (two interlocking polling https calls) makes that
|
|
// very hard to implement. A server side API change could untangle this and
|
|
// remove all the statefulness.
|
|
type State int
|
|
|
|
const (
|
|
StateNew = State(iota)
|
|
StateNotAuthenticated
|
|
StateAuthenticating
|
|
StateURLVisitRequired
|
|
StateAuthenticated
|
|
StateSynchronized // connected and received map update
|
|
)
|
|
|
|
func (s State) AppendText(b []byte) ([]byte, error) {
|
|
return append(b, s.String()...), nil
|
|
}
|
|
|
|
func (s State) MarshalText() ([]byte, error) {
|
|
return []byte(s.String()), nil
|
|
}
|
|
|
|
func (s State) String() string {
|
|
switch s {
|
|
case StateNew:
|
|
return "state:new"
|
|
case StateNotAuthenticated:
|
|
return "state:not-authenticated"
|
|
case StateAuthenticating:
|
|
return "state:authenticating"
|
|
case StateURLVisitRequired:
|
|
return "state:url-visit-required"
|
|
case StateAuthenticated:
|
|
return "state:authenticated"
|
|
case StateSynchronized:
|
|
return "state:synchronized"
|
|
default:
|
|
return fmt.Sprintf("state:unknown:%d", int(s))
|
|
}
|
|
}
|
|
|
|
type Status struct {
|
|
_ structs.Incomparable
|
|
|
|
// Err, if non-nil, is an error that occurred while logging in.
|
|
//
|
|
// If it's of type UserVisibleError then it's meant to be shown to users in
|
|
// their Tailscale client. Otherwise it's just logged to tailscaled's logs.
|
|
Err error
|
|
|
|
// URL, if non-empty, is the interactive URL to visit to finish logging in.
|
|
URL string
|
|
|
|
// NetMap is the latest server-pushed state of the tailnet network.
|
|
NetMap *netmap.NetworkMap
|
|
|
|
// Persist, when Valid, is the locally persisted configuration.
|
|
//
|
|
// TODO(bradfitz,maisem): clarify this.
|
|
Persist persist.PersistView
|
|
|
|
// state is the internal state. It should not be exposed outside this
|
|
// package, but we have some automated tests elsewhere that need to
|
|
// use it via the StateForTest accessor.
|
|
// TODO(apenwarr): Unexport or remove these.
|
|
state State
|
|
}
|
|
|
|
// LoginFinished reports whether the controlclient is in its "StateAuthenticated"
|
|
// state where it's in a happy register state but not yet in a map poll.
|
|
//
|
|
// TODO(bradfitz): delete this and everything around Status.state.
|
|
func (s *Status) LoginFinished() bool { return s.state == StateAuthenticated }
|
|
|
|
// StateForTest returns the internal state of s for tests only.
|
|
func (s *Status) StateForTest() State { return s.state }
|
|
|
|
// SetStateForTest sets the internal state of s for tests only.
|
|
func (s *Status) SetStateForTest(state State) { s.state = state }
|
|
|
|
// Equal reports whether s and s2 are equal.
|
|
func (s *Status) Equal(s2 *Status) bool {
|
|
if s == nil && s2 == nil {
|
|
return true
|
|
}
|
|
return s != nil && s2 != nil &&
|
|
s.Err == s2.Err &&
|
|
s.URL == s2.URL &&
|
|
s.state == s2.state &&
|
|
reflect.DeepEqual(s.Persist, s2.Persist) &&
|
|
reflect.DeepEqual(s.NetMap, s2.NetMap)
|
|
}
|
|
|
|
func (s Status) String() string {
|
|
b, err := json.MarshalIndent(s, "", "\t")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return s.state.String() + " " + string(b)
|
|
}
|