func refreshMeshInfo() (*meshInfo, error) {
nodes, err := getNodes()
if err != nil {
return nil, err
}
sites, err := getSites()
if err != nil {
return nil, err
}
node, ok := nodes[config.Serial()]
if !ok {
return nil, errors.New("Could not find our node in the cloud. (race condition?)")
}
site, ok := sites[node.SiteID]
if !ok {
return nil, errors.New("Could not find our node in the cloud. (race condition?)")
}
if config.Bool(false, "forceMaster") {
site.MasterNodeID = config.Serial()
}
meshInfo := &meshInfo{
SiteID: site.ID,
MasterNodeID: site.MasterNodeID,
SiteUpdated: int(time.Time(site.Updated).UnixNano() / int64(time.Second)),
}
return meshInfo, saveMeshInfo(meshInfo)
}
// bridgeMqtt connects one mqtt broker to another. Shouldn't probably be doing this. But whatever.
func (c *client) bridgeMqtt(from, to bus.Bus, masterToSlave bool, topics []string) {
onMessage := func(topic string, payload []byte) {
if masterToSlave {
// This is a message from master, clear the timeout
c.masterReceiveTimeout.Reset(orphanTimeout)
}
if payload[0] != '{' {
log.Warningf("Invalid payload (should be a json-rpc object): %s", payload)
return
}
var msg meshMessage
json.Unmarshal(payload, &msg)
interesting := false
if masterToSlave {
// Interesting if it's from the master or one of the other slaves
interesting = msg.Source == nil || (*msg.Source != config.Serial())
} else {
// Interesting if it's from me
interesting = msg.Source == nil
}
log.Infof("Mesh master2slave:%t topic:%s interesting:%t", masterToSlave, topic, interesting)
if interesting {
if msg.Source == nil {
if masterToSlave {
payload = addMeshSource(config.MustString("masterNodeId"), payload)
} else {
payload = addMeshSource(config.Serial(), payload)
}
}
to.Publish(topic, payload)
}
}
for _, topic := range topics {
_, err := from.Subscribe(topic, onMessage)
if err != nil {
log.Fatalf("Failed to subscribe to topic %s when bridging to master: %s", topic, err)
}
}
}
func runTasks() {
// Find this sphere's location, if we care..
if sameRoomOnly {
for _, thing := range allThings {
if thing.Type == "node" && thing.Device != nil && thing.Device.NaturalID == config.Serial() {
if thing.Location != nil && (roomID == nil || *roomID != *thing.Location) {
// Got it.
log.Infof("Got this sphere's location: %s", thing.Location)
roomID = thing.Location
select {
case foundLocation <- true:
default:
}
break
}
}
}
}
for _, task := range tasks {
go func(t *request) {
t.cb(getChannelServices(t.thingType, t.protocol, t.filter))
}(task)
}
}
// ExportDriver Exports a driver using the 'driver' protocol, and announces it
func (c *Connection) ExportDriver(driver Driver) error {
time.Sleep(config.Duration(time.Second*3, "drivers.startUpDelay"))
topic := fmt.Sprintf("$node/%s/driver/%s", config.Serial(), driver.GetModuleInfo().ID)
announcement := driver.GetModuleInfo()
announcement.ServiceAnnouncement = model.ServiceAnnouncement{
Schema: "http://schema.ninjablocks.com/service/driver",
}
_, err := c.exportService(driver, topic, announcement)
if err != nil {
return err
}
if config.Bool(false, "autostart") {
err := c.GetServiceClient(topic).Call("start", struct{}{}, nil, time.Second*20)
if err != nil {
c.log.Fatalf("Failed to autostart driver: %s", err)
}
}
return nil
}
// ExportApp Exports an app using the 'app' protocol, and announces it
func (c *Connection) ExportApp(app App) error {
if app.GetModuleInfo().ID == "" {
panic("You must provide an ID in the package.json")
}
topic := fmt.Sprintf("$node/%s/app/%s", config.Serial(), app.GetModuleInfo().ID)
announcement := app.GetModuleInfo()
announcement.ServiceAnnouncement = model.ServiceAnnouncement{
Schema: "http://schema.ninjablocks.com/service/app",
}
_, err := c.exportService(app, topic, announcement)
if err != nil {
return err
}
if config.Bool(false, "autostart") {
err := c.GetServiceClient(topic).Call("start", struct{}{}, nil, time.Second*20)
if err != nil {
c.log.Fatalf("Failed to autostart app: %s", err)
}
}
return nil
}
func (c *HomeCloud) AutoStartModules() {
do := func(name string, task string) error {
return c.Conn.SendNotification("$node/"+config.Serial()+"/module/"+task, name)
}
interval := config.MustDuration("homecloud.autoStart.interval")
for _, name := range c.findAutoStartModules() {
log.Infof("-- (Re)starting '%s'", name)
err := do(name, "stop")
if err != nil {
log.Fatalf("Failed to send %s stop message! %s", name, err)
}
time.Sleep(interval)
err = do(name, "start")
if err != nil {
log.Fatalf("Failed to send %s start message! %s", name, err)
}
}
}
func NewSystemPane(conn *ninja.Connection) Pane {
pane := &SystemPane{
log: logger.GetLogger("SystemPane"),
code: "0000",
color: "green",
}
status := conn.GetServiceClient("$device/:deviceId/component/:componentId")
status.OnEvent("status", func(statusEvent *StatusEvent, values map[string]string) bool {
if deviceId, ok := values["deviceId"]; !ok {
return true
} else if deviceId != config.Serial() {
return true
} else {
params, _ := json.Marshal(statusEvent)
pane.log.Infof("$device/%s/component/%s - %s", deviceId, values["componentId"], params)
pane.code = statusEvent.Code
pane.color = statusEvent.Color
if pane.color == "" {
pane.color = "green"
}
return true
}
})
return pane
}
func activate(client *http.Client, url string) (*credentials, error) {
log.Debugf("Requesting url: %s", url)
resp, err := client.Get(url)
if err != nil {
return nil, err
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode == http.StatusRequestTimeout {
return nil, nil
}
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("Failed to activate: %s - %s", resp.Status, body)
}
log.Debugf("Got response: %s", body)
var response nodeClaimResponse
err = json.Unmarshal(body, &response)
if err != nil {
log.Fatalf("Failed to unmarshal credentials from cloud: %s (%s)", body, err)
}
if response.Data.NodeID != config.Serial() {
log.Fatalf("Incorrect node id returned from pairing! Expected %s got %s", config.Serial(), response.Data.NodeID)
}
if response.Data.UserID == "" || response.Data.Token == "" || response.Data.SphereNetworkKey == "" {
log.Fatalf("Invalid credentials (missing value): %s", body)
}
return &credentials{
UserID: response.Data.UserID,
Token: response.Data.Token,
SphereNetworkKey: response.Data.SphereNetworkKey,
}, err
}
func (d *NodeDevice) GetDeviceInfo() *model.Device {
if d.modelDevice == nil {
name := "Spheramid " + config.Serial()
sphereVersion := config.SphereVersion()
d.modelDevice = &model.Device{
NaturalID: config.Serial(),
NaturalIDType: "node",
Name: &name,
Signatures: &map[string]string{
"ninja:manufacturer": "Ninja Blocks Inc.",
"ninja:productName": "Spheramid",
"ninja:thingType": "node",
"ninja:sphereVersion": sphereVersion,
},
}
}
return d.modelDevice
}
func NewLedController(conn *ninja.Connection) (*LedController, error) {
s, err := util.GetLEDConnection()
if err != nil {
log.Fatalf("Failed to get connection to LED matrix: %s", err)
}
// Send a blank image to the led matrix
util.WriteLEDMatrix(image.NewRGBA(image.Rect(0, 0, 16, 16)), s)
controller := &LedController{
conn: conn,
pairingLayout: ui.NewPairingLayout(),
serial: s,
waiting: make(chan bool),
}
conn.MustExportService(controller, "$node/"+config.Serial()+"/led-controller", &model.ServiceAnnouncement{
Schema: "/service/led-controller",
})
conn.MustExportService(controller, "$home/led-controller", &model.ServiceAnnouncement{
Schema: "/service/led-controller",
})
if config.HasString("siteId") {
log.Infof("Have a siteId, checking if homecloud is running")
// If we have just started, and we have a site, and homecloud is running... enable control!
go func() {
siteModel := conn.GetServiceClient("$home/services/SiteModel")
for {
if controller.commandReceived {
log.Infof("Command has been received, stopping search for homecloud.")
break
}
err := siteModel.Call("fetch", config.MustString("siteId"), nil, time.Second*5)
if err != nil {
log.Infof("Fetched site to enableControl. Got err: %s", err)
} else if err == nil && !controller.commandReceived {
controller.EnableControl()
break
}
time.Sleep(time.Second * 5)
}
}()
}
return controller, nil
}
func showPane() {
led := driver.conn.GetServiceClient("$node/" + config.Serial() + "/led-controller")
fmt.Println(led)
err := led.Call("displayIcon", ledmodel.IconRequest{
Icon: "orphaned.gif",
}, nil, 0)
if err != nil {
fmt.Println("========")
fmt.Println(err)
fmt.Println("========")
}
}
func (c *client) bridgeToMaster(host net.IP, port int) {
log.Debugf("Bridging to the master: %s:%d", host, port)
mqttURL := fmt.Sprintf("%s:%d", host, port)
clientID := "slave-" + config.Serial()
log.Infof("Connecting to master %s using cid:%s", mqttURL, clientID)
c.masterBus = bus.MustConnect(mqttURL, clientID)
c.localBus = bus.MustConnect(fmt.Sprintf("%s:%d", config.MustString("mqtt.host"), config.MustInt("mqtt.port")), "meshing")
log.Infof("Connected to master? %t", c.masterBus.Connected())
if c.masterBus.Connected() {
c.setUnorphaned()
} else {
c.setOrphaned()
}
c.masterBus.OnDisconnect(func() {
log.Infof("Disconnected from master")
go func() {
time.Sleep(time.Second * 5)
if !c.masterBus.Connected() {
log.Infof("Still disconnected from master, setting orphaned.")
c.setOrphaned()
}
}()
})
c.masterBus.OnConnect(func() {
log.Infof("Connected to master")
go func() {
time.Sleep(time.Second * 2)
if !c.masterBus.Connected() {
log.Infof("Still connected to master, setting unorphaned")
c.setUnorphaned()
}
}()
})
bridgeTopics := []string{"$discover", "$site/#", "$home/#" /*deprecated*/, "$node/#", "$thing/#", "$device/#"}
c.bridgeMqtt(c.masterBus, c.localBus, true, bridgeTopics)
c.bridgeMqtt(c.localBus, c.masterBus, false, bridgeTopics)
}
func Start() {
log.Infof("Starting client on Node: %s", config.Serial())
conn, err := ninja.Connect("client")
if err != nil {
log.Fatalf("Failed to connect to sphere: %s", err)
}
client := &client{
conn: conn,
led: conn.GetServiceClient("$home/led-controller"),
foundMaster: make(chan bool),
}
if !config.IsPaired() {
err = UpdateSphereAvahiService(false, false)
if err != nil {
log.Fatalf("Failed to update avahi service: %s", err)
}
}
client.updatePairingLight("black", false)
conn.SubscribeRaw("$sphere/bridge/status", client.onBridgeStatus)
client.start()
log.Infof("Client started.")
err = UpdateSphereAvahiService(true, client.master)
if err != nil {
log.Fatalf("Failed to update avahi service: %s", err)
}
if runtime.GOOS == "linux" {
go func() {
err := client.ensureTimezoneIsSet()
if err != nil {
log.Warningf("Could not save timezone: %s", err)
}
}()
}
listenToSiteUpdates(conn)
}
func (c *client) pair() error {
var boardType string
if config.HasString("boardType") {
boardType = config.MustString("boardType")
} else {
boardType = fmt.Sprintf("custom-%s-%s", runtime.GOOS, runtime.GOARCH)
}
log.Debugf("Board type: %s", boardType)
client := &http.Client{
Timeout: time.Second * 60, // It's 20sec on the server so this *should* be ok
}
if config.Bool(false, "cloud", "allowSelfSigned") {
log.Warningf("Allowing self-signed certificate (should only be used to connect to development cloud)")
client.Transport = &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
}
var creds *credentials
for {
url := fmt.Sprintf(config.MustString("cloud", "activation"), config.Serial(), getLocalIP(), boardType)
log.Debugf("Activating at URL: %s", url)
var err error
creds, err = activate(client, url)
if err != nil {
log.Warningf("Activation error : %s", err)
log.Warningf("Sleeping for 3sec")
time.Sleep(time.Second * 3)
} else if creds != nil {
break
}
}
log.Infof("Got credentials. User: %s", creds.UserID)
return saveCreds(creds)
}
func UpdateSphereAvahiService(isPaired, isMaster bool) error {
tmpl, err := template.New("avahi").Parse(src)
if err != nil {
return err
}
serviceDefinition := new(bytes.Buffer)
err = tmpl.Execute(serviceDefinition, map[string]interface{}{
"Serial": config.Serial(),
"Master": isMaster,
"Paired": isPaired,
"User": config.String("", "userId"),
"Site": config.String("", "siteId"),
"MasterNode": config.String("", "masterNodeId"),
"SiteUpdated": config.Int(0, "siteUpdated"),
"RestPort": config.MustInt("homecloud.rest.port"),
})
if err != nil {
return err
}
log.Debugf("Saving service definition", serviceDefinition.String())
if runtime.GOOS != "linux" {
log.Warningf("Avahi service definition is not being saved, as platform != linux")
return nil
}
if _, err := os.Stat("/data/etc/avahi/services"); err != nil {
log.Warningf("Avahi service definition is not being saved, as /data/etc/avahi/services does not exist")
return nil
}
err = ioutil.WriteFile("/data/etc/avahi/services/ninjasphere.service", []byte(serviceDefinition.String()), 0644)
// HACK: Remove this if it doesn't fix Chris's problem
exec.Command("service", "avahi-daemon", "restart").Output()
return err
}
func getUser(driver *HueDriver, bridge *hue.Bridge) *hue.User {
var user *hue.User
var err error
noUser := true
retries := 0
serial := config.Serial()
username := serial + serial //username must be long 10-40 characters
isvaliduser, err := bridge.IsValidUser(username)
if err != nil {
log.Warningf("Problem determining if hue user is valid")
}
var notificationTime time.Time
if isvaliduser {
user = hue.NewUserWithBridge(username, bridge)
} else {
for noUser {
user, err = bridge.CreateUser("ninjadevice", username)
if err != nil {
if strings.Contains(err.Error(), "101") { // there's probably a nicer way to check this
retries++
log.Debugf("Couldn't make user, push link button. Retry: %d", retries)
if time.Since(notificationTime) > time.Minute*5 {
notificationTime = time.Now()
driver.sendEvent("notification", pushButtonNotification)
}
time.Sleep(time.Second * 2) //this sucks
} else {
log.Debugf("Error creating user %s", err)
time.Sleep(time.Second * 20)
}
}
if user != nil {
noUser = false
}
}
}
return user
}
func NewLight(driver *Driver, D int, name string, port *arduino.Arduino) error {
light, err := devices.CreateLightDevice(driver, &model.Device{
NaturalID: fmt.Sprintf("%s-%d", config.Serial(), D),
NaturalIDType: "block-arduino",
Name: &name,
Signatures: &map[string]string{
"ninja:manufacturer": "Ninja Blocks Inc",
"ninja:productType": "Light",
"ninja:thingType": "light",
},
}, driver.Conn)
if err != nil {
log.FatalError(err, "Could not create light device")
}
if err := light.EnableOnOffChannel(); err != nil {
log.FatalError(err, "Could not enable hue on-off channel")
}
if err := light.EnableBrightnessChannel(); err != nil {
log.FatalError(err, "Could not enable hue brightness channel")
}
if err := light.EnableColorChannel("temperature", "hue"); err != nil {
log.FatalError(err, "Could not enable color channel")
}
port.OnDeviceData(func(data arduino.DeviceData) {
if data.D == D {
spew.Dump("Light Data!", data)
}
})
return nil
}
func (b *TinyBus) connect() {
b.connecting.Add(1)
defer func() {
b.connecting.Done()
b.publish(&proto.Publish{
Header: proto.Header{
Retain: true,
},
TopicName: fmt.Sprintf("node/%s/module/%s/state/connected", config.Serial(), b.id),
Payload: proto.BytesPayload([]byte("true")),
})
}()
var conn wrappedConn
for {
tcpConn, err := net.Dial("tcp", b.host)
if err == nil {
conn = wrappedConn{
Conn: tcpConn,
done: make(chan bool, 1),
}
break
}
//log.Warningf("Failed to connect to: %s", err)
time.Sleep(time.Millisecond * 500)
}
if b.mqtt != nil {
log.Infof("Reconnected to mqtt server")
}
mqtt := mqtt.NewClientConn(conn)
mqtt.ClientId = b.id
err := mqtt.ConnectCustom(&proto.Connect{
WillFlag: true,
WillQos: 0,
WillRetain: true,
WillTopic: fmt.Sprintf("$node/%s/module/%s/state/connected", config.Serial(), b.id),
WillMessage: "false",
})
if err != nil {
log.Fatalf("MQTT Failed to connect to: %s", err)
}
b.mqtt = mqtt
b.connected()
for _, s := range b.subscriptions {
if !s.cancelled {
b.subscribe(s)
}
}
go func() {
for m := range mqtt.Incoming {
b.onIncoming(m)
}
}()
go func() {
<-conn.done
b.disconnected()
if !b.destroyed {
b.connect()
}
}()
}
package rest
import (
"encoding/json"
"io/ioutil"
"net/http"
"github.com/ninjasphere/go-ninja/config"
"github.com/ninjasphere/go-ninja/logger"
)
var wrapped = true
var log = logger.GetLogger("HomeCloud.Router")
// doesn't change so we cache it.
var NodeID = config.Serial()
// ResponseWrapper used to wrap responses from the API
type ResponseWrapper struct {
Type string `json:"type,omitempty"`
Data interface{} `json:"data,omitempty"`
}
// WriteServerErrorResponse Builds the wrapped error for the client
func WriteServerErrorResponse(msg string, code int, w http.ResponseWriter) {
body, err := json.Marshal(&ResponseWrapper{Type: "error", Data: msg})
if err != nil {
log.Errorf("Unable to serialise response: %s", err)
}
func (c *client) start() {
if !config.IsPaired() {
log.Infof("Client is unpaired. Attempting to pair.")
if err := c.pair(); err != nil {
log.Fatalf("An error occurred while pairing. Restarting. error: %s", err)
}
log.Infof("Pairing was successful.")
// We reload the config so the creds can be picked up
config.MustRefresh()
if !config.IsPaired() {
log.Fatalf("Pairing appeared successful, but I did not get the credentials. Restarting.")
}
}
log.Infof("Client is paired. User: %s", config.MustString("userId"))
if !config.NoCloud() {
mesh, err := refreshMeshInfo()
if err == errorUnauthorised {
log.Warningf("UNAUTHORISED! Unpairing.")
c.unpair()
return
}
if err != nil {
log.Warningf("Failed to refresh mesh info: %s", err)
} else {
log.Debugf("Got mesh info: %+v", mesh)
}
config.MustRefresh()
if !config.HasString("masterNodeId") {
log.Warningf("We don't have any mesh information. Which is unlikely. But we can't do anything without it, so restarting client.")
time.Sleep(time.Second * 10)
os.Exit(0)
}
}
if config.MustString("masterNodeId") == config.Serial() {
log.Infof("I am the master, starting HomeCloud.")
cmd := exec.Command("start", "sphere-homecloud")
cmd.Output()
go c.exportNodeDevice()
c.master = true
} else {
log.Infof("I am a slave. The master is %s", config.MustString("masterNodeId"))
// TODO: Remove this when we are running drivers on slaves
cmd := exec.Command("stop", "sphere-director")
cmd.Output()
c.masterReceiveTimeout = time.AfterFunc(orphanTimeout, func() {
c.setOrphaned()
})
}
go func() {
log.Infof("Starting search for peers")
for {
c.findPeers()
time.Sleep(time.Second * 30)
}
}()
}
func (c *client) findPeers() {
query := "_ninja-homecloud-mqtt._tcp"
// Make a channel for results and start listening
entriesCh := make(chan *mdns.ServiceEntry, 4)
go func() {
for entry := range entriesCh {
if !strings.Contains(entry.Name, query) {
continue
}
nodeInfo := parseMdnsInfo(entry.Info)
id, ok := nodeInfo["ninja.sphere.node_id"]
if !ok {
log.Warningf("Found a node, but couldn't get it's node id. %v", entry)
continue
}
if id == config.Serial() {
// It's me.
continue
}
user, ok := nodeInfo["ninja.sphere.user_id"]
if !ok {
log.Warningf("Found a node, but couldn't get it's user id. %v", entry)
continue
}
site, ok := nodeInfo["ninja.sphere.site_id"]
siteUpdated, ok := nodeInfo["ninja.sphere.site_updated"]
masterNodeID, ok := nodeInfo["ninja.sphere.master_node_id"]
if user == config.MustString("userId") {
if site == config.MustString("siteId") {
log.Infof("Found a sibling node (%s) - %s", id, entry.Addr)
siteUpdatedInt, err := strconv.ParseInt(siteUpdated, 10, 64)
if err != nil {
log.Warningf("Failed to read the site_updated field (%s) on node %s - %s", siteUpdated, id, entry.Addr)
} else {
if int(siteUpdatedInt) > config.MustInt("siteUpdated") {
log.Infof("Found node (%s - %s) with a newer site update time (%s).", id, entry.Addr, siteUpdated)
info := &meshInfo{
MasterNodeID: masterNodeID,
SiteID: config.MustString("siteId"),
SiteUpdated: int(siteUpdatedInt),
}
err := saveMeshInfo(info)
if err != nil {
log.Warningf("Failed to save updated mesh info from node: %s - %+v", err, info)
}
if masterNodeID == config.MustString("masterNodeId") {
log.Infof("Updated master id is the same (%s). Moving on with our lives.", masterNodeID)
} else {
log.Infof("Master id has changed (was %s now %s). Rebooting", config.MustString("masterNodeId"), masterNodeID)
reboot()
return
}
}
}
} else {
log.Warningf("Found a node owned by the same user (%s) but from a different site (%s) - ID:%s - %s", user, site, id, entry.Addr)
}
} else {
log.Infof("Found a node owned by another user (%s) (%s) - %s", user, id, entry.Addr)
}
if id == config.MustString("masterNodeId") {
log.Infof("Found the master node (%s) - %s", id, entry.Addr)
select {
case c.foundMaster <- true:
default:
}
if !c.bridged {
c.bridgeToMaster(entry.Addr, entry.Port)
c.bridged = true
c.exportNodeDevice()
}
}
}
}()
// Start the lookup
mdns.Lookup(query, entriesCh)
close(entriesCh)
}
func (c *client) unpair() {
log.Infof("Unpairing")
c.conn.SendNotification(fmt.Sprintf("$node/%s/unpair", config.Serial()), nil)
}
