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| package main | ||
|
|
||
| /* | ||
| * Copyright (c) 2019 Adrian Ulrich <[email protected]> | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v10.html | ||
| * | ||
| */ | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "flag" | ||
| "fmt" | ||
| "log" | ||
| "net/http" | ||
| "sync" | ||
|
|
||
| "github.com/adrian-bl/dyslink" | ||
| ) | ||
|
|
||
| var ( | ||
| flagHost = flag.String("host", "10.0.42.137:1883", "The ip:port combination to connect to") | ||
| flagUser = flag.String("user", "", "The user to use. Part of setup SSID, example: NN4-CH-HEA0322B") | ||
| flagPass = flag.String("password", "", "The passwort to use. See sticker on the manual (or under your fans filter)") | ||
| flagListen = flag.String("listen", "127.0.0.1:9033", "ip:port to listen on") | ||
| ) | ||
|
|
||
| var state = struct { | ||
| sync.RWMutex | ||
| Fan dyslink.ProductState `json:"Fan"` | ||
| Env dyslink.EnvironmentState `json:"Env"` | ||
| }{} | ||
|
|
||
| func main() { | ||
| flag.Parse() | ||
|
|
||
| cb := make(chan *dyslink.MessageCallback) | ||
| opts := &dyslink.ClientOpts{ | ||
| Model: dyslink.TypeModelN475, | ||
| Username: *flagUser, | ||
| Password: *flagPass, | ||
| DeviceAddress: fmt.Sprintf("tcp://%s", *flagHost), | ||
| CallbackChan: cb, | ||
| } | ||
|
|
||
| c := dyslink.NewClient(opts) | ||
| if err := c.Connect(); err != nil { | ||
| log.Fatalf("failed to connect to '%s': %v", *flagHost, err) | ||
| } | ||
|
|
||
| ctx := context.Background() | ||
|
|
||
| go func() { | ||
| if err := serveHttp(ctx, c, *flagListen); err != nil { | ||
| log.Printf("serveHttp err: %v", err) | ||
| } | ||
| }() | ||
| go monitorStatus(ctx, c, cb) | ||
| <-ctx.Done() | ||
| } | ||
|
|
||
| func monitorStatus(ctx context.Context, c dyslink.Client, cb chan *dyslink.MessageCallback) { | ||
|
|
||
| c.RequestCurrentState() | ||
| for { | ||
| select { | ||
| case <-ctx.Done(): | ||
| return | ||
| case msg := <-cb: | ||
| if msg.Error == nil { | ||
| fmt.Printf("> %+v\n", msg) | ||
| state.Lock() | ||
| if v, ok := msg.Message.(*dyslink.ProductState); ok { | ||
| state.Fan = *v | ||
| } | ||
| if v, ok := msg.Message.(*dyslink.EnvironmentState); ok { | ||
| state.Env = *v | ||
| } | ||
| state.Unlock() | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // serveHttp setups the http server. | ||
| func serveHttp(ctx context.Context, c dyslink.Client, addr string) error { | ||
| srv := &http.Server{ | ||
| Addr: addr, | ||
| } | ||
|
|
||
| go func() { | ||
| <-ctx.Done() | ||
| srv.Shutdown(ctx) | ||
| }() | ||
| http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { | ||
| handleHttp(c, w, r) | ||
| }) | ||
| return srv.ListenAndServe() | ||
| } | ||
|
|
||
| // handleHttp dispatches http requests. | ||
| func handleHttp(c dyslink.Client, w http.ResponseWriter, r *http.Request) { | ||
| if r.Method == "GET" && r.URL.String() == "/" { | ||
| serveIndex(w) | ||
| } else if r.Method == "GET" && r.URL.String() == "/getstate.json" { | ||
| serveState(w) | ||
| } else if r.Method == "POST" && r.URL.String() == "/setstate.json" { | ||
| setState(c, w, r) | ||
| } else { | ||
| w.WriteHeader(404) | ||
| } | ||
| } | ||
|
|
||
| // serveState serves the current fan state as json. | ||
| func serveState(w http.ResponseWriter) { | ||
| state.RLock() | ||
| defer state.RUnlock() | ||
| w.Header().Set("Content-Type", "application/json") | ||
| json.NewEncoder(w).Encode(state) | ||
| } | ||
|
|
||
| func setState(c dyslink.Client, w http.ResponseWriter, r *http.Request) { | ||
| r.ParseForm() | ||
| w.WriteHeader(200) | ||
|
|
||
| state := &dyslink.FanState{} | ||
| if v := r.Form["mode"]; len(v) == 1 { | ||
| switch v[0] { | ||
| case "OFF": | ||
| state.FanMode = dyslink.FanModeOff | ||
| case "FAN": | ||
| state.FanMode = dyslink.FanModeOn | ||
| case "AUTO": | ||
| state.FanMode = dyslink.FanModeAuto | ||
| } | ||
| } | ||
|
|
||
| if v := r.Form["speed"]; len(v) == 1 { | ||
| state.FanSpeed = v[0] | ||
| } | ||
|
|
||
| if v := r.Form["rotate"]; len(v) == 1 { | ||
| switch v[0] { | ||
| case "ON": | ||
| state.Oscillate = dyslink.OscillateOn | ||
| case "OFF": | ||
| state.Oscillate = dyslink.OscillateOff | ||
| } | ||
| } | ||
|
|
||
| c.SetState(state) | ||
| } | ||
|
|
||
| // serveIndex serves the main html. | ||
| func serveIndex(w http.ResponseWriter) { | ||
| w.WriteHeader(200) | ||
| w.Write([]byte(`<html> | ||
| <head> | ||
| <title>Dyslink</title> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | ||
| <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> | ||
| <style> | ||
| .toptitle { | ||
| text-align: center; | ||
| font-size: 2.5em; | ||
| color: #606060; | ||
| text-shadow: 2px 2px 12px #202020; | ||
| } | ||
| .title { | ||
| text-align: center; | ||
| font-size: 2em; | ||
| color: #505050; | ||
| text-shadow: 2px 2px 8px #101010; | ||
| } | ||
| .select { | ||
| font-size: 1.2em; | ||
| display: block; | ||
| margin: 0 auto; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body bgcolor="#222222"> | ||
| <div class="toptitle">Fan Web UI</div> | ||
| <br><br> | ||
| <div id="ui" style="visibility: hidden;"> | ||
| <div class="title">Mode</div> | ||
| <select class="select" id="mode"> | ||
| <option value="OFF">Off</option> | ||
| <option value="FAN">On</option> | ||
| <option value="AUTO">Auto</option> | ||
| </select> | ||
| <br> | ||
| <div class="title">Fan Speed</div> | ||
| <select class="select" id="speed"> | ||
| <option value="1">1</option> | ||
| <option value="2">2</option> | ||
| <option value="3">3</option> | ||
| <option value="4">4</option> | ||
| <option value="5">5</option> | ||
| <option value="6">6</option> | ||
| <option value="7">7</option> | ||
| <option value="8">8</option> | ||
| <option value="9">9</option> | ||
| <option value="10">10</option> | ||
| </select> | ||
| <br> | ||
| <div class="title">Rotation</div> | ||
| <select class="select" id="rotate"> | ||
| <option value="OFF">Off</option> | ||
| <option value="ON">Rotate</option> | ||
| </select> | ||
| </div> | ||
| <script> | ||
| var busy = 0; | ||
| function setFan() { | ||
| busy = 1; | ||
| $.ajax({ | ||
| type: "POST", | ||
| url: "setstate.json", | ||
| data: { | ||
| mode: $("#mode").val(), | ||
| speed: $("#speed").val(), | ||
| rotate: $("#rotate").val(), | ||
| }, | ||
| }); | ||
| } | ||
| $("#mode").change(function() { setFan(); }); | ||
| $("#speed").change(function() { setFan(); }); | ||
| $("#rotate").change(function() { setFan(); }); | ||
| (function poll() { | ||
| $.ajax({ | ||
| url: "getstate.json", | ||
| type: "GET", | ||
| success: function(data) { | ||
| if (busy == 0) { | ||
| restoreUI(data); | ||
| } | ||
| }, | ||
| dataType: "json", | ||
| complete: setTimeout(function() {poll()}, 500), | ||
| timeout: 2000 | ||
| }) | ||
| })(); | ||
| function restoreUI(data) { | ||
| fs = parseInt(data.Fan.FanSpeed) | ||
| if (!isNaN(fs)) { | ||
| $('#speed').val(fs); | ||
| } | ||
| $('#rotate').val(data.Fan.Oscillate); | ||
| $('#mode').val(data.Fan.FanMode); | ||
| $('#ui').css("visibility", "visible"); | ||
| busy = 0; | ||
| } | ||
| </script> | ||
| </body> | ||
| </html> | ||
| `)) | ||
| } |