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coap-gateway: update device status online in shortime than exp token
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| package service | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "sync" | ||
| "time" | ||
|
|
||
| deviceStatus "github.com/plgd-dev/cloud/coap-gateway/schema/device/status" | ||
| pbCQRS "github.com/plgd-dev/cloud/resource-aggregate/pb" | ||
| "github.com/plgd-dev/kit/log" | ||
| kitNetGrpc "github.com/plgd-dev/kit/net/grpc" | ||
| ) | ||
|
|
||
| type deviceExpires struct { | ||
| expires time.Time | ||
| client *Client | ||
| } | ||
|
|
||
| type devicesStatusUpdater struct { | ||
| ctx context.Context | ||
| deviceStatusValidity time.Duration | ||
|
|
||
| mutex sync.Mutex | ||
| devices map[string]*deviceExpires | ||
| } | ||
|
|
||
| func NewDevicesStatusUpdater(ctx context.Context, deviceStatusValidity time.Duration) *devicesStatusUpdater { | ||
| u := devicesStatusUpdater{ | ||
| ctx: ctx, | ||
| deviceStatusValidity: deviceStatusValidity, | ||
| devices: make(map[string]*deviceExpires), | ||
| } | ||
| go u.run() | ||
| return &u | ||
| } | ||
|
|
||
| func (u *devicesStatusUpdater) Add(c *Client) error { | ||
| expires, err := u.updateOnlineStatus(c, time.Now().Add(u.deviceStatusValidity)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| d := deviceExpires{ | ||
| client: c, | ||
| expires: expires, | ||
| } | ||
| u.mutex.Lock() | ||
| defer u.mutex.Unlock() | ||
| u.devices[c.remoteAddrString()] = &d | ||
| return nil | ||
| } | ||
|
|
||
| func (u *devicesStatusUpdater) Remove(c *Client) { | ||
| u.mutex.Lock() | ||
| defer u.mutex.Unlock() | ||
| delete(u.devices, c.remoteAddrString()) | ||
| } | ||
|
|
||
| func (u *devicesStatusUpdater) updateOnlineStatus(client *Client, validUntil time.Time) (time.Time, error) { | ||
| authCtx := client.loadAuthorizationContext() | ||
| if isExpired(authCtx.Expire) { | ||
| return time.Time{}, fmt.Errorf("token is expired") | ||
| } | ||
| serviceToken, err := client.server.oauthMgr.GetToken(client.Context()) | ||
| if err != nil { | ||
| return time.Time{}, fmt.Errorf("cannot get service token: %w", err) | ||
| } | ||
| ctx := kitNetGrpc.CtxWithUserID(kitNetGrpc.CtxWithToken(client.Context(), serviceToken.AccessToken), authCtx.GetUserID()) | ||
| if authCtx.Expire.Before(validUntil) { | ||
| validUntil = authCtx.Expire | ||
| } | ||
|
|
||
| return validUntil, deviceStatus.SetOnline(ctx, client.server.raClient, authCtx.GetDeviceId(), validUntil, &pbCQRS.CommandMetadata{ | ||
| Sequence: client.coapConn.Sequence(), | ||
| ConnectionId: client.remoteAddrString(), | ||
| }, authCtx.AuthorizationContext) | ||
| } | ||
|
|
||
| func (u *devicesStatusUpdater) getDevicesToUpdate(now time.Time) []*deviceExpires { | ||
| u.mutex.Lock() | ||
| defer u.mutex.Unlock() | ||
| res := make([]*deviceExpires, 0, len(u.devices)) | ||
| for key, d := range u.devices { | ||
| select { | ||
| case <-d.client.Context().Done(): | ||
| delete(u.devices, key) | ||
| default: | ||
| if now.Add(u.deviceStatusValidity / 2).After(d.expires) { | ||
| res = append(res, d) | ||
| } | ||
| } | ||
| } | ||
| return res | ||
| } | ||
|
|
||
| func (u *devicesStatusUpdater) run() { | ||
| t := time.NewTicker(u.deviceStatusValidity / 10) | ||
| for { | ||
| select { | ||
| case <-u.ctx.Done(): | ||
| return | ||
| case now := <-t.C: | ||
| for _, d := range u.getDevicesToUpdate(now) { | ||
| expires, err := u.updateOnlineStatus(d.client, time.Now().Add(u.deviceStatusValidity)) | ||
| if err != nil { | ||
| log.Errorf("cannot update device(%v) status to online: %v", getDeviceID(d.client), err) | ||
| } else { | ||
| d.expires = expires | ||
| } | ||
| } | ||
| log.Debugf("update devices statuses to online takes: %v", time.Now().Sub(now)) | ||
| } | ||
| } | ||
| } |
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