/
oidc-token.go
131 lines (119 loc) · 3.08 KB
/
oidc-token.go
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/*
* Copyright 2019 Abstrium SAS
*
* This file is part of Cells Sync.
*
* Cells Sync is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Cells Sync is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Cells Sync. If not, see <https://www.gnu.org/licenses/>.
*/
package config
import (
"sync"
"time"
"github.com/pydio/cells/v4/common/log"
)
var monitors map[string]*tokenMonitor
var monitorsLock *sync.Mutex
// tokenMonitor automatically refresh IdToken as needed
type tokenMonitor struct {
a *Authority
trigger chan struct{}
done chan bool
statusWatches []chan interface{}
}
type RefreshStatus struct {
Valid bool `json:"valid"`
Error string `json:"error,omitempty"`
}
func getTokenMonitor(a *Authority, watchers []chan interface{}) *tokenMonitor {
monitorsLock.Lock()
defer func() {
monitorsLock.Unlock()
}()
if m, ok := monitors[a.key()]; ok {
return m
} else {
monitor := &tokenMonitor{
a: a,
trigger: make(chan struct{}, 10),
done: make(chan bool, 1),
}
monitors[a.key()] = monitor
monitor.statusWatches = watchers
go monitor.Start()
return monitor
}
}
func (t *tokenMonitor) Start() {
var nextTick time.Duration
nextTick, _ = t.a.RefreshRequired()
safeInterval := time.NewTicker(2 * time.Minute)
defer func() {
safeInterval.Stop()
close(t.trigger)
}()
for {
select {
case <-safeInterval.C:
var now bool
log.Logger(oidcContext).Info("Additional safe check for token " + t.a.key())
nextTick, now = t.a.RefreshRequired()
if now {
t.trigger <- struct{}{}
}
case <-time.After(nextTick):
t.trigger <- struct{}{}
case <-t.trigger:
if e := t.a.Refresh(); e != nil {
log.Logger(oidcContext).Info("Refreshing token failed for " + t.a.key() + ", will retry in 10s :" + e.Error())
t.a.RefreshStatus = &RefreshStatus{
Valid: false,
Error: e.Error(),
}
nextTick = 10 * time.Second
} else {
t.a.RefreshStatus = &RefreshStatus{
Valid: true,
}
nextTick, _ = t.a.RefreshRequired()
}
for _, w := range t.statusWatches {
w <- &AuthChange{
Type: "token",
Authority: t.a,
}
}
case <-t.done:
log.Logger(oidcContext).Info("Stopping token monitoring for " + t.a.key())
return
}
}
}
func (t *tokenMonitor) Stop() {
close(t.done)
}
func stopMonitoringToken(key string) {
monitorsLock.Lock()
if monitor, ok := monitors[key]; ok {
monitor.Stop()
delete(monitors, key)
}
monitorsLock.Unlock()
}
func appendMonitorsWatch(w chan interface{}) {
monitorsLock.Lock()
defer monitorsLock.Unlock()
for _, m := range monitors {
m.statusWatches = append(m.statusWatches, w)
}
}