headscale/hscontrol/notifier/notifier.go
Kristoffer Dalby ed4e19996b
Use tailscale key types instead of strings (#1609)
* upgrade tailscale

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* make Node object use actualy tailscale key types

This commit changes the Node struct to have both a field for strings
to store the keys in the database and a dedicated Key for each type
of key.

The keys are populated and stored with Gorm hooks to ensure the data
is stored in the db.

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* use key types throughout the code

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* make sure machinekey is concistently used

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* use machine key in auth url

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* fix web register

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* use key type in notifier

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* fix relogin with webauth

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

---------

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
2023-11-19 22:37:04 +01:00

81 lines
1.9 KiB
Go

package notifier
import (
"sync"
"github.com/juanfont/headscale/hscontrol/types"
"github.com/juanfont/headscale/hscontrol/util"
"github.com/rs/zerolog/log"
"tailscale.com/types/key"
)
type Notifier struct {
l sync.RWMutex
nodes map[string]chan<- types.StateUpdate
}
func NewNotifier() *Notifier {
return &Notifier{}
}
func (n *Notifier) AddNode(machineKey key.MachinePublic, c chan<- types.StateUpdate) {
log.Trace().Caller().Str("key", machineKey.ShortString()).Msg("acquiring lock to add node")
defer log.Trace().Caller().Str("key", machineKey.ShortString()).Msg("releasing lock to add node")
n.l.Lock()
defer n.l.Unlock()
if n.nodes == nil {
n.nodes = make(map[string]chan<- types.StateUpdate)
}
n.nodes[machineKey.String()] = c
log.Trace().
Str("machine_key", machineKey.ShortString()).
Int("open_chans", len(n.nodes)).
Msg("Added new channel")
}
func (n *Notifier) RemoveNode(machineKey key.MachinePublic) {
log.Trace().Caller().Str("key", machineKey.ShortString()).Msg("acquiring lock to remove node")
defer log.Trace().Caller().Str("key", machineKey.ShortString()).Msg("releasing lock to remove node")
n.l.Lock()
defer n.l.Unlock()
if n.nodes == nil {
return
}
delete(n.nodes, machineKey.String())
log.Trace().
Str("machine_key", machineKey.ShortString()).
Int("open_chans", len(n.nodes)).
Msg("Removed channel")
}
func (n *Notifier) NotifyAll(update types.StateUpdate) {
n.NotifyWithIgnore(update)
}
func (n *Notifier) NotifyWithIgnore(update types.StateUpdate, ignore ...string) {
log.Trace().Caller().Interface("type", update.Type).Msg("acquiring lock to notify")
defer log.Trace().
Caller().
Interface("type", update.Type).
Msg("releasing lock, finished notifing")
n.l.RLock()
defer n.l.RUnlock()
for key, c := range n.nodes {
if util.IsStringInSlice(ignore, key) {
continue
}
log.Trace().Caller().Str("machine", key).Strs("ignoring", ignore).Msg("sending update")
c <- update
}
}