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Copy pathclient.go
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454 lines (421 loc) · 10.7 KB
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package controllers
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"sync"
"time"
"github.com/ModuleAB/ModuleAB/server/common"
"github.com/ModuleAB/ModuleAB/server/models"
"github.com/astaxie/beego"
"github.com/gorilla/websocket"
)
const (
ClientWebSocketReplyGot = "GOT"
ClientWebSocketReplyDone = "DONE"
ClientWebSocketReplyBye = "BYE"
)
const (
ClientRunStatusAll = iota
ClientRunStatusRunning
ClientRunStatusStopped
)
type ClientStatusMsg struct {
HostId string
Status int
}
var (
ClientStatus map[string]int
ChanClientStatus chan ClientStatusMsg
)
func init() {
ClientStatus = make(map[string]int)
ChanClientStatus = make(chan ClientStatusMsg, 2<<10)
go clientStatus()
AddPrivilege("GET", "^/api/v1/client/signal/(.+)/ws$", models.RoleFlagNone)
}
func clientStatus() {
for {
select {
case s := <-ChanClientStatus:
ClientStatus[s.HostId] = s.Status
}
}
}
type ClientController struct {
beego.Controller
}
func (c *ClientController) Prepare() {
if c.Ctx.Input.Header("Signature") != "" {
err := common.AuthWithKey(c.Ctx)
if err != nil {
c.Data["json"] = map[string]string{
"error": err.Error(),
}
c.Ctx.Output.SetStatus(http.StatusForbidden)
c.ServeJSON()
}
} else {
id := c.GetSession("id")
if id == nil {
c.Data["json"] = map[string]string{
"error": "You need login first.",
}
c.Ctx.Output.SetStatus(http.StatusUnauthorized)
c.ServeJSON()
} else {
if !CheckPrivileges(id.(string), c.Ctx) {
c.Data["json"] = map[string]string{
"error": "No privileges.",
}
c.Ctx.Output.SetStatus(http.StatusForbidden)
c.ServeJSON()
}
}
}
}
// @Title getClientConf
// @Description getClientConf
// @Param body body models.Hosts true "body for host content"
// @Success 200
// @Failure 403 body is empty
// @router /config [get]
func (c *ClientController) GetAliConfig() {
c.Data["json"] = map[string]string{
"ali_key": beego.AppConfig.String("aliapi::apikey"),
"ali_secret": beego.AppConfig.String("aliapi::secret"),
}
c.ServeJSON()
}
// @Title getSignalsWs
// @router /signal/:name/ws [get]
func (c *ClientController) WebSocket() {
name := c.GetString(":name")
beego.Debug("[C] Got name:", name)
if name != "" {
host := &models.Hosts{
Name: name,
}
hosts, err := models.GetHosts(host, 1, 0)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Failed to get with name:", name),
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
c.ServeJSON()
return
}
if len(hosts) == 0 {
beego.Debug("[C] Got nothing with name:", name)
c.Ctx.Output.SetStatus(http.StatusNotFound)
c.ServeJSON()
return
}
HostId := hosts[0].Id
ws, err := websocket.Upgrade(
c.Ctx.ResponseWriter, c.Ctx.Request,
nil, 1024, 1024)
if err != nil {
c.Data["json"] = map[string]string{
"message": "Failed on upgrading to websocket",
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
c.ServeJSON()
return
}
defer ws.Close()
tick := beego.AppConfig.DefaultInt64("websocket::pingperiod", 5)
ticker := time.NewTicker(
time.Duration(tick) * time.Second)
defer ticker.Stop()
timeout := beego.AppConfig.DefaultInt64("websocket::timeout", 10)
ws.SetReadDeadline(time.Now().Add(
time.Duration(timeout) * time.Second),
)
ws.SetWriteDeadline(time.Now().Add(
time.Duration(timeout) * time.Second),
)
var runningStatus = ClientStatusMsg{
HostId: HostId,
Status: ClientRunStatusStopped,
}
ws.SetPongHandler(func(string) error {
beego.Debug("Host:", name, "is still alive.")
ws.SetReadDeadline(time.Now().Add(
time.Duration(timeout) * time.Second),
)
ws.SetWriteDeadline(time.Now().Add(
time.Duration(timeout) * time.Second),
)
runningStatus.Status = ClientRunStatusRunning
ChanClientStatus <- runningStatus
return nil
})
defer func() {
runningStatus.Status = ClientRunStatusStopped
ChanClientStatus <- runningStatus
}()
var c chan models.Signal
c, ok := models.SignalChannels[HostId]
if !ok {
c = make(chan models.Signal, 1024)
models.SignalChannels[HostId] = c
}
// Start read routine
go func() {
defer ws.Close()
for {
_, bConfirm, err := ws.ReadMessage()
if websocket.IsCloseError(err,
websocket.CloseGoingAway) {
beego.Info("Host", name, "is offline.")
return
} else if err != nil {
beego.Warn("Error on reading:", err.Error())
return
}
s := strings.Split(string(bConfirm), " ")
if s[0] == ClientWebSocketReplyDone {
models.DeleteSignal(HostId, s[1])
}
}
}()
for {
select {
case s := <-models.SignalChannels[HostId]:
ws.WriteJSON(s)
case <-ticker.C:
beego.Debug("Websocket ping:", name)
err := ws.WriteMessage(websocket.PingMessage, []byte{})
if err != nil {
beego.Warn("Got error on ping", err.Error())
return
}
}
}
}
}
// @Title getSignals
// @router /signal/:name [get]
func (c *ClientController) GetSignals() {
name := c.GetString(":name")
defer c.ServeJSON()
beego.Debug("[C] Got name:", name)
if name != "" {
host := &models.Hosts{
Name: name,
}
hosts, err := models.GetHosts(host, 0, 0)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Failed to get with name:", name),
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
return
}
if len(hosts) == 0 {
beego.Debug("[C] Got nothing with name:", name)
c.Ctx.Output.SetStatus(http.StatusNotFound)
return
}
c.Data["json"] = models.GetSignals(hosts[0].Id)
c.Ctx.Output.SetStatus(http.StatusOK)
}
}
// @Title getSignal
// @router /signal/:name/:id [get]
func (c *ClientController) GetSignal() {
name := c.GetString(":name")
id := c.GetString(":id")
defer c.ServeJSON()
beego.Debug("[C] Got name:", name)
if name != "" {
host := &models.Hosts{
Name: name,
}
hosts, err := models.GetHosts(host, 0, 0)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Failed to get with name:", name),
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
return
}
if len(hosts) == 0 {
beego.Debug("[C] Got nothing with name:", name)
c.Ctx.Output.SetStatus(http.StatusNotFound)
return
}
signal, err := models.GetSignal(hosts[0].Id, id)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Got nothing with id:", id),
}
c.Ctx.Output.SetStatus(http.StatusNotFound)
return
}
c.Data["json"] = signal
c.Ctx.Output.SetStatus(http.StatusOK)
}
}
// @Title createSignal
// @router /signal/:name [post]
func (c *ClientController) PostSignal() {
name := c.GetString(":name")
defer c.ServeJSON()
beego.Debug("[C] Got name:", name)
if name != "" {
host := &models.Hosts{
Name: name,
}
hosts, err := models.GetHosts(host, 0, 0)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Failed to get with name:", name),
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
return
}
if len(hosts) == 0 {
beego.Debug("[C] Got nothing with name:", name)
c.Ctx.Output.SetStatus(http.StatusNotFound)
return
}
var signal models.Signal
err = json.Unmarshal(c.Ctx.Input.RequestBody, &signal)
if err != nil {
beego.Warn("[C] Got error:", err)
c.Data["json"] = map[string]string{
"message": "Bad request",
"error": err.Error(),
}
c.Ctx.Output.SetStatus(http.StatusBadRequest)
return
}
beego.Debug("[C] Got data:", signal)
id, err := models.AddSignal(hosts[0].Id, signal)
if err != nil {
beego.Warn("[C] Got error:", err)
c.Data["json"] = map[string]string{
"message": "Failed to add new signal",
"error": err.Error(),
}
c.Ctx.Output.SetStatus(http.StatusBadRequest)
return
}
c.Data["json"] = map[string]string{
"id": id,
}
c.Ctx.Output.SetStatus(http.StatusCreated)
}
}
// @Title deleteSignal
// @router /signal/:name/:id [delete]
func (c *ClientController) DeleteSignal() {
name := c.GetString(":name")
id := c.GetString(":id")
defer c.ServeJSON()
beego.Debug("[C] Got name:", name)
if name != "" {
host := &models.Hosts{
Name: name,
}
hosts, err := models.GetHosts(host, 0, 0)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Failed to get with name:", name),
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
return
}
if len(hosts) == 0 {
beego.Debug("[C] Got nothing with name:", name)
c.Ctx.Output.SetStatus(http.StatusNotFound)
return
}
err = models.DeleteSignal(hosts[0].Id, id)
if err != nil {
beego.Warn("[C] Got error:", err)
c.Data["json"] = map[string]string{
"message": "Delete failed",
"error": err.Error(),
}
if err == models.ErrorSignalNotFound {
c.Ctx.Output.SetStatus(http.StatusNotFound)
} else {
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
}
return
}
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Got nothing with id:", id),
}
c.Ctx.Output.SetStatus(http.StatusNotFound)
}
}
// @Title notifySignal
// @router /signal/:name/:id [post]
func (c *ClientController) NotifySignal() {
name := c.GetString(":name")
id := c.GetString(":id")
defer c.ServeJSON()
if name != "" {
host := &models.Hosts{
Name: name,
}
hosts, err := models.GetHosts(host, 0, 0)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Failed to get with name:", name),
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
return
}
if len(hosts) == 0 {
beego.Debug("[C] Got nothing with name:", name)
c.Ctx.Output.SetStatus(http.StatusNotFound)
return
}
if id == "" {
c.Ctx.Output.SetStatus(http.StatusBadRequest)
return
}
err = models.NotifySignal(hosts[0].Id, id)
if err != nil {
c.Data["json"] = map[string]string{
"message": fmt.Sprint("Failed to notify to:", name),
"error": err.Error(),
}
beego.Warn("[C] Got error:", err)
c.Ctx.Output.SetStatus(http.StatusInternalServerError)
return
}
c.Ctx.Output.SetStatus(http.StatusOK)
return
}
}
// @Title getClientStatus
// @router /config/status [get]
func (c *ClientController) GetStatus() {
defer c.ServeJSON()
var lock = new(sync.Mutex)
lock.Lock()
defer lock.Unlock()
c.Data["json"] = ClientStatus
c.Ctx.Output.SetStatus(http.StatusOK)
}