wings/websocket.go
2019-04-20 11:59:28 -07:00

53 lines
1.5 KiB
Go

package main
import (
"fmt"
"github.com/julienschmidt/httprouter"
"go.uber.org/zap"
"net/http"
"strings"
)
type WebsocketMessage struct {
// The event to perform. Should be one of the following that are supported:
//
// - status : Returns the server's power state.
// - logs : Returns the server log data at the time of the request.
// - power : Performs a power action aganist the server based the data.
// - command : Performs a command on a server using the data field.
Event string `json:"event"`
// The data to pass along, only used by power/command currently. Other requests
// should either omit the field or pass an empty value as it is ignored.
Args []string `json:"args,omitempty"`
}
func (rt *Router) routeWebsocket(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
c, err := rt.upgrader.Upgrade(w, r, nil)
if err != nil {
zap.S().Error(err)
return
}
defer c.Close()
s := rt.Servers.Get(ps.ByName("server"))
for {
j := WebsocketMessage{}
// Discard and JSON parse errors into the void and don't continue processing this
// specific socket request. If we did a break here the client would get disconnected
// from the socket, which is NOT what we want to do.
if err := c.ReadJSON(&j); err != nil {
break
}
fmt.Printf("%s sent: %s = %s\n", s.Uuid, j.Event, strings.Join(j.Args, " "))
if err := c.WriteJSON(WebsocketMessage{Event: j.Event, Args: []string{}}); err != nil {
zap.S().Warnw("error writing JSON to socket", zap.Error(err))
break
}
}
}