init

actions.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"golang.org/x/net/websocket"
+)
+
+type Actions struct {
+	Functions map[string]func(ws *websocket.Conn, msg string) error
+}
+
+func (actions Actions) add(name string, callback func(ws *websocket.Conn, msg string) error) {
+	actions.Functions[name] = callback
+}
+
+func (actions Actions) has(name string) bool {
+	_, exists := actions.Functions[name]
+
+	return exists
+}
+
+func (actions Actions) exec(name string, ws *websocket.Conn, msg string) error {
+	return actions.Functions[name](ws, msg)
+}

go.mod

@@ -0,0 +1,18 @@
+module gitnet.fr/deblan/remote-i3wm-go
+
+go 1.21.0
+
+require (
+	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
+	github.com/labstack/echo/v4 v4.11.1 // indirect
+	github.com/labstack/gommon v0.4.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	golang.org/x/crypto v0.12.0 // indirect
+	golang.org/x/net v0.14.0 // indirect
+	golang.org/x/sys v0.11.0 // indirect
+	golang.org/x/text v0.12.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+)

go.sum

@@ -0,0 +1,49 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
+github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
+github.com/labstack/echo/v4 v4.11.1 h1:dEpLU2FLg4UVmvCGPuk/APjlH6GDpbEPti61srUUUs4=
+github.com/labstack/echo/v4 v4.11.1/go.mod h1:YuYRTSM3CHs2ybfrL8Px48bO6BAnYIN4l8wSTMP6BDQ=
+github.com/labstack/gommon v0.4.0 h1:y7cvthEAEbU0yHOf4axH8ZG2NH8knB9iNSoTO8dyIk8=
+github.com/labstack/gommon v0.4.0/go.mod h1:uW6kP17uPlLJsD3ijUYn3/M5bAxtlZhMI6m3MFxTMTM=
+github.com/mattn/go-colorable v0.1.11/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
+github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+github.com/valyala/fasttemplate v1.2.1/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
+github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo=
+github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
+golang.org/x/crypto v0.11.0 h1:6Ewdq3tDic1mg5xRO4milcWCfMVQhI4NkqWWvqejpuA=
+golang.org/x/crypto v0.11.0/go.mod h1:xgJhtzW8F9jGdVFWZESrid1U1bjeNy4zgy5cRr/CIio=
+golang.org/x/crypto v0.12.0 h1:tFM/ta59kqch6LlvYnPa0yx5a83cL2nHflFhYKvv9Yk=
+golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98yw=
+golang.org/x/net v0.12.0 h1:cfawfvKITfUsFCeJIHJrbSxpeu/E81khclypR0GVT50=
+golang.org/x/net v0.12.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
+golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
+golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211103235746-7861aae1554b/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
+golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
+golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
+golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
+golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
+golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -0,0 +1,255 @@
+package main
+
+import (
+	"crypto/subtle"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/labstack/echo/v4"
+	"github.com/labstack/echo/v4/middleware"
+	"golang.org/x/net/websocket"
+	"net/http"
+	"os/exec"
+	"strconv"
+	"strings"
+)
+
+type Message struct {
+	Type string `json:type`
+}
+
+type SimpleMessageData struct {
+	Value string `json:type`
+}
+
+type PointerMessageData struct {
+	X     string `json:x`
+	Y     string `json:y`
+	Click string `json:click`
+}
+
+func getSimpleMessageValue(msg string) string {
+	data := SimpleMessageData{}
+	json.Unmarshal([]byte(msg), &data)
+
+	return data.Value
+}
+
+func ws(c echo.Context) error {
+	var actions = Actions{
+		Functions: make(map[string]func(ws *websocket.Conn, msg string) error),
+	}
+
+	actions.add("pointer", func(ws *websocket.Conn, msg string) error {
+		data := PointerMessageData{}
+		json.Unmarshal([]byte(msg), &data)
+
+		if data.Click != "" {
+			keys := make(map[string]string)
+
+			keys["left"] = "1"
+			keys["middle"] = "2"
+			keys["right"] = "3"
+
+			key, exists := keys[data.Click]
+
+			if !exists {
+				return errors.New("Invalid value")
+			}
+
+			cmd := exec.Command("xdotool", "click", key)
+
+			return cmd.Run()
+		}
+
+		location := exec.Command("xdotool", "getmouselocation")
+		output, _ := location.Output()
+		position := string(output)
+		currentX := 0.0
+		currentY := 0.0
+
+		for key, value := range strings.Split(position, " ") {
+			if key == 0 {
+				currentX, _ = strconv.ParseFloat(strings.Replace(value, "x:", "", 1), 32)
+			} else if key == 1 {
+				currentY, _ = strconv.ParseFloat(strings.Replace(value, "y:", "", 1), 32)
+			}
+		}
+
+		fmt.Printf("%+v\n", currentX)
+		fmt.Printf("%+v\n", currentY)
+
+		newX, _ := strconv.ParseFloat(data.X, 32)
+		newY, _ := strconv.ParseFloat(data.Y, 32)
+
+		x := currentX + newX*2.5
+		y := currentY + newY*2.5
+
+		cmd := exec.Command("xdotool", "mousemove", fmt.Sprintf("%.0f", x), fmt.Sprintf("%.0f", y))
+
+		return cmd.Run()
+	})
+
+	actions.add("scroll", func(ws *websocket.Conn, msg string) error {
+		value := getSimpleMessageValue(msg)
+		key := ""
+
+		if value == "down" {
+			key = "5"
+		} else if value == "up" {
+			key = "4"
+		} else {
+			return errors.New("Invalid value")
+		}
+
+		for i := 0; i < 2; i++ {
+			cmd := exec.Command("xdotool", "click", key)
+			cmd.Run()
+		}
+
+		return nil
+	})
+
+	actions.add("workspace", func(ws *websocket.Conn, msg string) error {
+		value := getSimpleMessageValue(msg)
+
+		if value == "" {
+			return errors.New("Invalid value")
+		}
+
+		cmd := exec.Command("i3-msg", fmt.Sprintf("workspace \"%s\"", value))
+
+		return cmd.Run()
+	})
+
+	actions.add("volume", func(ws *websocket.Conn, msg string) error {
+		return nil
+	})
+
+	actions.add("media", func(ws *websocket.Conn, msg string) error {
+		return nil
+	})
+
+	actions.add("keys", func(ws *websocket.Conn, msg string) error {
+		value := strings.TrimSpace(getSimpleMessageValue(msg))
+
+		if value == "" {
+			return errors.New("Invalid value")
+		}
+
+		keys := []string{}
+
+		for _, key := range strings.Split(value, ",") {
+			if key == "win" {
+				key = "super"
+			} else if key == "ctrl" {
+				key = "Control_L"
+			} else if key == "alt" {
+				key = "Alt_L"
+			}
+
+			if key != "" {
+				keys = append(keys, key)
+			}
+		}
+
+		if len(keys) == 0 {
+			return errors.New("Invalid value")
+		}
+
+		cmd := exec.Command("xdotool", "key", strings.Join(keys, "+"))
+
+		return cmd.Run()
+	})
+
+	actions.add("key", func(ws *websocket.Conn, msg string) error {
+		value := strings.TrimSpace(getSimpleMessageValue(msg))
+		keys := make(map[string]string)
+
+		keys["up"] = "Up"
+		keys["down"] = "Down"
+		keys["left"] = "Left"
+		keys["right"] = "Right"
+		keys["tab"] = "Tab"
+		keys["backspace"] = "BackSpace"
+		keys["enter"] = "Return"
+		keys["space"] = "space"
+		keys["escape"] = "Escape"
+
+		key, exists := keys[value]
+
+		if !exists {
+			return errors.New("Invalid value")
+		}
+
+		cmd := exec.Command("xdotool", "key", key)
+
+		return cmd.Run()
+	})
+
+	actions.add("text", func(ws *websocket.Conn, msg string) error {
+		value := strings.TrimSpace(getSimpleMessageValue(msg))
+
+		if value == "" {
+			return errors.New("Invalid value")
+		}
+
+		cmd := exec.Command("xdotool", "type", value)
+
+		return cmd.Run()
+	})
+
+	actions.add("screenshot", func(ws *websocket.Conn, msg string) error {
+		return nil
+	})
+
+	actions.add("messages", func(ws *websocket.Conn, msg string) error {
+		return nil
+	})
+
+	websocket.Handler(func(ws *websocket.Conn) {
+		defer ws.Close()
+		for {
+			// Write
+			// err := websocket.Message.Send(ws, "Hello, Client!")
+			// if err != nil {
+			// 	c.Logger().Error(err)
+			// }
+
+			msg := ""
+			websocket.Message.Receive(ws, &msg)
+
+			message := Message{}
+			json.Unmarshal([]byte(msg), &message)
+
+			if message.Type != "" && actions.has(message.Type) {
+				fmt.Printf("%+v\n", msg)
+				err := actions.exec(message.Type, ws, msg)
+
+				fmt.Printf("%+v\n", err)
+			}
+		}
+	}).ServeHTTP(c.Response(), c.Request())
+
+	return nil
+}
+
+func main() {
+	e := echo.New()
+
+	e.Use(middleware.BasicAuth(func(username, password string, c echo.Context) (bool, error) {
+		if subtle.ConstantTimeCompare([]byte(username), []byte("admin")) == 1 &&
+			subtle.ConstantTimeCompare([]byte(password), []byte("admin")) == 1 {
+			return true, nil
+		}
+		return false, nil
+	}))
+
+	e.GET("/", func(c echo.Context) error {
+		return c.String(http.StatusOK, "Hello, World!")
+	})
+
+	e.GET("/ws", ws)
+
+	e.Logger.Fatal(e.Start(":4000"))
+}