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package allocation
import (
"net"
"time"
"github.com/pion/logging"
)
const permissionTimeout = time.Duration(5) * time.Minute
// Permission represents a TURN permission. TURN permissions mimic the address-restricted
// filtering mechanism of NATs that comply with [RFC4787].
// https://tools.ietf.org/html/rfc5766#section-2.3
type Permission struct {
Addr net.Addr
allocation *Allocation
lifetimeTimer *time.Timer
log logging.LeveledLogger
}
// NewPermission create a new Permission
func NewPermission(addr net.Addr, log logging.LeveledLogger) *Permission {
return &Permission{
Addr: addr,
log: log,
}
}
func (p *Permission) start(lifetime time.Duration) {
p.lifetimeTimer = time.AfterFunc(lifetime, func() {
p.allocation.RemovePermission(p.Addr)
})
}
func (p *Permission) refresh(lifetime time.Duration) {
if !p.lifetimeTimer.Reset(lifetime) {
p.log.Errorf("Failed to reset permission timer for %v %v", p.Addr, p.allocation.fiveTuple)
}
}
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