add logo, reboot notice

.air.toml

@@ -0,0 +1,32 @@
+root = "./src"
+tmp_dir = "tmp"
+
+[build]
+  bin = "./tmp/main"
+  cmd = "go build -o ./tmp/main ./src/."
+  delay = 1000
+  exclude_dir = ["assets", "tmp", "vendor"]
+  exclude_file = []
+  exclude_regex = []
+  exclude_unchanged = false
+  follow_symlink = false
+  full_bin = ""
+  include_dir = []
+  include_ext = ["go", "tpl", "tmpl", "html"]
+  kill_delay = "0s"
+  log = "build-errors.log"
+  send_interrupt = false
+  stop_on_error = true
+
+[color]
+  app = ""
+  build = "yellow"
+  main = "magenta"
+  runner = "green"
+  watcher = "cyan"
+
+[log]
+  time = false
+
+[misc]
+  clean_on_exit = false

.drone.yml

@@ -0,0 +1,18 @@
+kind: pipeline
+name: default
+type: docker
+
+steps:
+  - name: Frontend build
+    image: node:16-alpine
+    commands:
+      - cd ui
+      - npm install -g pnpm
+      - pnpm install
+      - pnpm run build
+  - name: Backend test
+    image: golangci/golangci-lint:latest
+    commands:
+      - go mod download
+      - golangci-lint run --timeout 5m
+      - go test -v ./src/...

.editorconfig

@@ -1,17 +1,15 @@
 [*]
 charset = utf-8
-indent_style = space
+indent_style = tab
 indent_size = 4
 end_of_line = lf
 trim_trailing_whitespace = true
 insert_final_newline = true
 max_line_length = 88
 
-[*.go]
+[*.py]
-indent_style = tab
+indent_style = space
-
-[Makefile]
-indent_style = tab
 
 [*.{json,md,rst,ini,yml,yaml}]
+indent_style = space
 indent_size = 2

.gitignore

@@ -0,0 +1 @@
+tmp

.pre-commit-config.yaml

@@ -1,8 +1,22 @@
 repos:
-- repo: https://github.com/tekwizely/pre-commit-golang
+  - repo: https://github.com/tekwizely/pre-commit-golang
-  rev: v1.0.0-beta.4
+    rev: v1.0.0-beta.4
-  hooks:
+    hooks:
-  - id: golangci-lint-repo-mod
+      - id: golangci-lint-repo-mod
-    name: GolangCI Lint
+        name: GolangCI Lint
-  - id: go-test-repo-mod
+      - id: go-test-repo-mod
-    name: Test
+        name: Backend tests
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.4.1
+    hooks:
+      - id: prettier
+  - repo: local
+    hooks:
+      - id: tsc
+        name: tsc
+        entry: tsc
+        language: node
+        files: \.tsx?$
+        args: ["-p", "./ui/tsconfig.json"]
+        additional_dependencies: ["typescript@4.5.2"]
+        pass_filenames: false

.prettierignore

@@ -0,0 +1,2 @@
+node_modules
+dist

.prettierrc.json

@@ -0,0 +1,15 @@
+{
+  "useTabs": true,
+  "tabWidth": 4,
+  "semi": false,
+  "bracketSpacing": false,
+  "overrides": [
+    {
+      "files": ["*.json", "*.md", "*.rst", "*.ini", "*.yml", "*.yaml"],
+      "options": {
+        "useTabs": false,
+        "tabWidth": 2
+      }
+    }
+  ]
+}

.vscode/launch.json

@@ -1,12 +1,21 @@
 {
-    "version": "0.2.0",
+  "version": "0.2.0",
-    "configurations": [
+  "configurations": [
-      {
+    {
-        "name": "Launch SEBRAUC server",
+      "name": "SEBRAUC server",
-        "type": "go",
+      "type": "go",
-        "request": "launch",
+      "request": "launch",
-        "mode": "auto",
+      "mode": "auto",
-        "program": "${workspaceFolder}/src"
+      "program": "${workspaceFolder}/src"
-      }
+    },
-    ]
+    {
+      "name": "UI dev server",
+      "request": "launch",
+      "cwd": "${workspaceFolder}/ui",
+      "runtimeArgs": ["run-script", "dev"],
+      "runtimeExecutable": "npm",
+      "skipFiles": ["<node_internals>/**"],
+      "type": "pwa-node"
+    }
+  ]
 }

README.md

@@ -0,0 +1 @@
+![SEBRAUC](ui/src/assets/logo_border.svg)

go.mod

@@ -3,9 +3,7 @@ module code.thetadev.de/TSGRain/SEBRAUC
 go 1.16
 
 require (
-	code.thetadev.de/ThetaDev/gotry v0.3.2
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/godbus/dbus/v5 v5.0.6
 	github.com/gofiber/fiber/v2 v2.21.0
 	github.com/gofiber/websocket/v2 v2.0.12
 	github.com/stretchr/testify v1.7.0

go.sum

@@ -1,15 +1,10 @@
-code.thetadev.de/ThetaDev/gotry v0.3.2 h1:x5JOBszLbCo4FDe9V8ynHsV6EfvALV7wUqnJ/5vtjbw=
-code.thetadev.de/ThetaDev/gotry v0.3.2/go.mod h1:lKo6abOTMy5uO25ifG7JsGG3DYZd0XZd0xqa6y41BoU=
 github.com/andybalholm/brotli v1.0.2 h1:JKnhI/XQ75uFBTiuzXpzFrUriDPiZjlOSzh6wXogP0E=
 github.com/andybalholm/brotli v1.0.2/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fasthttp/websocket v1.4.3-rc.9 h1:CWJH0vONrOatdKXZgkgbFKWllijD9aY50C5KfbSDcWk=
 github.com/fasthttp/websocket v1.4.3-rc.9/go.mod h1:eXL2zqDbexYJxaCw8/PQlm7VcMK6uoGvwbYbTdt4dFo=
-github.com/godbus/dbus/v5 v5.0.6 h1:mkgN1ofwASrYnJ5W6U/BxG15eXXXjirgZc7CLqkcaro=
-github.com/godbus/dbus/v5 v5.0.6/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gofiber/fiber/v2 v2.20.1/go.mod h1:/LdZHMUXZvTTo7gU4+b1hclqCAdoQphNQ9bi9gutPyI=
 github.com/gofiber/fiber/v2 v2.21.0 h1:tdRNrgqWqcHWBwE3o51oAleEVsil4Ro02zd2vMEuP4Q=
 github.com/gofiber/fiber/v2 v2.21.0/go.mod h1:MR1usVH3JHYRyQwMe2eZXRSZHRX38fkV+A7CPB+DlDQ=
@@ -45,8 +40,8 @@ golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9sn
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

openapi.yml

@@ -45,6 +45,22 @@ paths:
               schema:
                 $ref: "#/components/schemas/StatusMessage"
 
+  /reboot:
+    post:
+      responses:
+        "200":
+          description: "OK"
+          content:
+            "application/json":
+              schema:
+                $ref: "#/components/schemas/StatusMessage"
+        default:
+          description: "Server error"
+          content:
+            "application/json":
+              schema:
+                $ref: "#/components/schemas/StatusMessage"
+
 components:
   schemas:
     RaucStatus:

src/assets/files/index.html

@@ -1,88 +1,88 @@
 <!-- See https://github.com/gorilla/websocket/blob/master/examples/chat/home.html -->
 <!DOCTYPE html>
 <html lang="en">
-    <head>
+	<head>
-        <title>Chat Example</title>
+		<title>Chat Example</title>
-        <script type="text/javascript">
+		<script type="text/javascript">
-            window.onload = function () {
+			window.onload = function () {
-                var conn;
+				var conn
-                var msg = document.getElementById("msg");
+				var msg = document.getElementById("msg")
-                var log = document.getElementById("log");
+				var log = document.getElementById("log")
 
-                function appendLog(item) {
+				function appendLog(item) {
-                    var doScroll =
+					var doScroll =
-                        log.scrollTop > log.scrollHeight - log.clientHeight - 1;
+						log.scrollTop > log.scrollHeight - log.clientHeight - 1
-                    log.appendChild(item);
+					log.appendChild(item)
-                    if (doScroll) {
+					if (doScroll) {
-                        log.scrollTop = log.scrollHeight - log.clientHeight;
+						log.scrollTop = log.scrollHeight - log.clientHeight
-                    }
+					}
-                }
+				}
 
-                if (window["WebSocket"]) {
+				if (window["WebSocket"]) {
-                    conn = new WebSocket("ws://" + document.location.host + "/api/ws");
+					conn = new WebSocket("ws://" + document.location.host + "/api/ws")
-                    conn.onclose = function (evt) {
+					conn.onclose = function (evt) {
-                        var item = document.createElement("div");
+						var item = document.createElement("div")
-                        item.innerHTML = "<b>Connection closed.</b>";
+						item.innerHTML = "<b>Connection closed.</b>"
-                        appendLog(item);
+						appendLog(item)
-                    };
+					}
-                    conn.onmessage = function (evt) {
+					conn.onmessage = function (evt) {
-                        var messages = evt.data.split("\n");
+						var messages = evt.data.split("\n")
-                        for (var i = 0; i < messages.length; i++) {
+						for (var i = 0; i < messages.length; i++) {
-                            var item = document.createElement("div");
+							var item = document.createElement("div")
-                            item.innerText = messages[i];
+							item.innerText = messages[i]
-                            appendLog(item);
+							appendLog(item)
-                        }
+						}
-                    };
+					}
-                } else {
+				} else {
-                    var item = document.createElement("div");
+					var item = document.createElement("div")
-                    item.innerHTML = "<b>Your browser does not support WebSockets.</b>";
+					item.innerHTML = "<b>Your browser does not support WebSockets.</b>"
-                    appendLog(item);
+					appendLog(item)
-                }
+				}
-            };
+			}
-        </script>
+		</script>
-        <style type="text/css">
+		<style type="text/css">
-            html {
+			html {
-                overflow: hidden;
+				overflow: hidden;
-            }
+			}
 
-            body {
+			body {
-                overflow: hidden;
+				overflow: hidden;
-                padding: 0;
+				padding: 0;
-                margin: 0;
+				margin: 0;
-                width: 100%;
+				width: 100%;
-                height: 100%;
+				height: 100%;
-                background: gray;
+				background: gray;
-            }
+			}
 
-            #log {
+			#log {
-                background: white;
+				background: white;
-                margin: 0;
+				margin: 0;
-                padding: 0.5em 0.5em 0.5em 0.5em;
+				padding: 0.5em 0.5em 0.5em 0.5em;
-                position: absolute;
+				position: absolute;
-                top: 4em;
+				top: 4em;
-                left: 0.5em;
+				left: 0.5em;
-                right: 0.5em;
+				right: 0.5em;
-                bottom: 3em;
+				bottom: 3em;
-                overflow: auto;
+				overflow: auto;
-            }
+			}
 
-            #form {
+			#form {
-                padding: 0 0.5em 0 0.5em;
+				padding: 0 0.5em 0 0.5em;
-                margin: 0;
+				margin: 0;
-                position: absolute;
+				position: absolute;
-                bottom: 1em;
+				bottom: 1em;
-                left: 0px;
+				left: 0px;
-                width: 100%;
+				width: 100%;
-                overflow: hidden;
+				overflow: hidden;
-            }
+			}
-        </style>
+		</style>
-    </head>
+	</head>
-    <body>
+	<body>
-        <div id="log"></div>
+		<div id="log"></div>
 
-        <form method="POST" enctype="multipart/form-data">
+		<form method="POST" enctype="multipart/form-data">
-            <input type="file" name="updateFile" id="file" />
+			<input type="file" name="updateFile" id="file" />
-            <input type="submit" name="submit" />
+			<input type="submit" name="submit" />
-        </form>
+		</form>
-    </body>
+	</body>
 </html>

src/fixtures/testutil.go

@@ -3,8 +3,6 @@ package fixtures
 import (
 	"os"
 	"path/filepath"
-
-	"code.thetadev.de/ThetaDev/gotry/try"
 )
 
 func doesFileExist(filepath string) bool {
@@ -13,7 +11,10 @@ func doesFileExist(filepath string) bool {
 }
 
 func getProjectRoot() string {
-	p := try.String(os.Getwd())
+	p, err := os.Getwd()
+	if err != nil {
+		panic(err)
+	}
 
 	for i := 0; i < 10; i++ {
 		if doesFileExist(filepath.Join(p, "go.mod")) {
@@ -27,7 +28,10 @@ func getProjectRoot() string {
 
 func CdProjectRoot() {
 	root := getProjectRoot()
-	try.Check(os.Chdir(root))
+	err := os.Chdir(root)
+	if err != nil {
+		panic(err)
+	}
 }
 
 func GetTestfilesDir() string {

src/fixtures/testutil_test.go

@@ -5,7 +5,6 @@ import (
 	"path/filepath"
 	"testing"
 
-	"code.thetadev.de/ThetaDev/gotry/try"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -17,7 +16,10 @@ func TestGetProjectRoot(t *testing.T) {
 
 	t.Run("subdir", func(t *testing.T) {
 		root1 := getProjectRoot()
-		try.Check(os.Chdir(filepath.Join(root1, "src/rauc")))
+		err := os.Chdir(filepath.Join(root1, "src/rauc"))
+		if err != nil {
+			panic(err)
+		}
 
 		root := getProjectRoot()
 		assert.True(t, doesFileExist(filepath.Join(root, "go.sum")))
@@ -26,7 +28,10 @@ func TestGetProjectRoot(t *testing.T) {
 
 func TestCdProjectRoot(t *testing.T) {
 	CdProjectRoot()
-	try.Check(os.Chdir("src/rauc"))
+	err := os.Chdir("src/rauc")
+	if err != nil {
+		panic(err)
+	}
 	CdProjectRoot()
 	assert.True(t, doesFileExist("go.sum"))
 }

src/rauc/rauc.go

@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
+	"os"
 	"os/exec"
 	"regexp"
 	"strconv"
@@ -18,9 +19,9 @@ var (
 )
 
 type Rauc struct {
-	Command    string
+	command    string
-	Args       []string
+	args       []string
-	Broadcast  chan string
+	broadcast  chan string
 	status     RaucStatus
 	runningMtx sync.Mutex
 }
@@ -33,9 +34,23 @@ type RaucStatus struct {
 	Log        string `json:"log"`
 }
 
-func (r *Rauc) completed() {
+func NewRauc(command string, args []string, broadcast chan string) *Rauc {
+	r := &Rauc{
+		command:   command,
+		args:      args,
+		broadcast: broadcast,
+	}
+
+	r.broadcast <- r.GetStatusJson()
+
+	return r
+}
+
+func (r *Rauc) completed(updateFile string) {
 	r.status.Installing = false
-	r.Broadcast <- r.GetStatusJson()
+	r.broadcast <- r.GetStatusJson()
+
+	_ = os.Remove(updateFile)
 }
 
 func (r *Rauc) RunRauc(updateFile string) error {
@@ -58,10 +73,10 @@ func (r *Rauc) RunRauc(updateFile string) error {
 	r.status = RaucStatus{
 		Installing: true,
 	}
-	r.Broadcast <- r.GetStatusJson()
+	r.broadcast <- r.GetStatusJson()
 
 	//nolint:gosec
-	cmd := exec.Command(r.Command, append(r.Args, updateFile)...)
+	cmd := exec.Command(r.command, append(r.args, updateFile)...)
 
 	readPipe, _ := cmd.StdoutPipe()
 	cmd.Stderr = cmd.Stdout
@@ -91,14 +106,14 @@ func (r *Rauc) RunRauc(updateFile string) error {
 			}
 
 			if hasUpdate {
-				r.Broadcast <- r.GetStatusJson()
+				r.broadcast <- r.GetStatusJson()
 			}
 		}
 	}()
 
 	err := cmd.Start()
 	if err != nil {
-		r.completed()
+		r.completed(updateFile)
 		return err
 	}
 
@@ -107,7 +122,7 @@ func (r *Rauc) RunRauc(updateFile string) error {
 		if err != nil {
 			fmt.Printf("RAUC failed with %s\n", err)
 		}
-		r.completed()
+		r.completed(updateFile)
 	}()
 
 	return nil

src/server/hub.go

@@ -25,7 +25,7 @@ func NewHub() *MessageHub {
 	return &MessageHub{
 		clients:    make(map[*websocket.Conn]hubClient),
 		register:   make(chan *websocket.Conn),
-		Broadcast:  make(chan string),
+		Broadcast:  make(chan string, 5),
 		unregister: make(chan *websocket.Conn),
 	}
 }

src/server/server.go

@@ -2,13 +2,17 @@ package server
 
 import (
 	"errors"
+	"fmt"
 	"net/http"
 	"strings"
+	"time"
 
-	"code.thetadev.de/TSGRain/SEBRAUC/src/assets"
 	"code.thetadev.de/TSGRain/SEBRAUC/src/rauc"
 	"code.thetadev.de/TSGRain/SEBRAUC/src/util"
+	"code.thetadev.de/TSGRain/SEBRAUC/ui"
 	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/middleware/compress"
+	"github.com/gofiber/fiber/v2/middleware/cors"
 	"github.com/gofiber/fiber/v2/middleware/filesystem"
 	"github.com/gofiber/fiber/v2/middleware/logger"
 	"github.com/gofiber/websocket/v2"
@@ -18,6 +22,8 @@ type SEBRAUCServer struct {
 	address     string
 	raucUpdater *rauc.Rauc
 	hub         *MessageHub
+	tmpdir      string
+	currentId   int
 }
 
 type statusMessage struct {
@@ -28,31 +34,43 @@ type statusMessage struct {
 func NewServer(address string) *SEBRAUCServer {
 	hub := NewHub()
 
-	raucUpdater := &rauc.Rauc{
+	raucUpdater := rauc.NewRauc("go", []string{
-		Command: "go",
+		"run",
-		Args: []string{
+		"code.thetadev.de/TSGRain/SEBRAUC/src/fixtures/rauc_mock",
-			"run",
+	}, hub.Broadcast)
-			"code.thetadev.de/TSGRain/SEBRAUC/src/fixtures/rauc_mock",
+
-		},
+	tmpdir, err := util.NewTmpdir()
-		Broadcast: hub.Broadcast,
+	if err != nil {
+		panic(err)
 	}
 
 	return &SEBRAUCServer{
 		address:     address,
 		raucUpdater: raucUpdater,
 		hub:         hub,
+		tmpdir:      tmpdir,
 	}
 }
 
 func (srv *SEBRAUCServer) Run() error {
 	app := fiber.New(fiber.Config{
-		AppName:      "SEBRAUC",
+		AppName:               "SEBRAUC",
-		BodyLimit:    1024 * 1024 * 1024,
+		BodyLimit:             1024 * 1024 * 1024,
-		ErrorHandler: errorHandler,
+		ErrorHandler:          errorHandler,
+		DisableStartupMessage: true,
 	})
 
 	app.Use(logger.New())
 
+	app.Use(compress.New(compress.Config{
+		Next: func(c *fiber.Ctx) bool {
+			return strings.HasPrefix(c.Path(), "/api")
+		},
+	}))
+
+	// just for testing
+	app.Use("/api", cors.New())
+
 	app.Use("/api/ws", func(c *fiber.Ctx) error {
 		// IsWebSocketUpgrade returns true if the client
 		// requested upgrade to the WebSocket protocol.
@@ -64,15 +82,16 @@ func (srv *SEBRAUCServer) Run() error {
 	})
 
 	app.Use("/", filesystem.New(filesystem.Config{
-		Root:       http.FS(assets.Assets),
+		Root:       http.FS(ui.Assets),
-		PathPrefix: "files",
+		PathPrefix: ui.AssetsDir,
+		MaxAge:     7200,
 	}))
 
 	// ROUTES
 	app.Get("/api/ws", websocket.New(srv.hub.Handler))
-	app.Get("/api/test", srv.controllerTest)
 	app.Post("/api/update", srv.controllerUpdate)
 	app.Get("/api/status", srv.controllerStatus)
+	app.Post("/api/reboot", srv.controllerReboot)
 
 	// Start messaging hub
 	go srv.hub.Run()
@@ -85,12 +104,16 @@ func (srv *SEBRAUCServer) controllerUpdate(c *fiber.Ctx) error {
 	if err != nil {
 		return err
 	}
-	err = c.SaveFile(file, "./update.raucb")
+
+	srv.currentId++
+	updateFile := fmt.Sprintf("%s/update_%d.raucb", srv.tmpdir, srv.currentId)
+
+	err = c.SaveFile(file, updateFile)
 	if err != nil {
 		return err
 	}
 
-	err = srv.raucUpdater.RunRauc("./update.raucb")
+	err = srv.raucUpdater.RunRauc(updateFile)
 	if err == nil {
 		writeStatus(c, true, "Update started")
 	} else if errors.Is(err, util.ErrAlreadyRunning) {
@@ -107,15 +130,10 @@ func (srv *SEBRAUCServer) controllerStatus(c *fiber.Ctx) error {
 	return nil
 }
 
-func (srv *SEBRAUCServer) controllerTest(c *fiber.Ctx) error {
+func (srv *SEBRAUCServer) controllerReboot(c *fiber.Ctx) error {
-	err := srv.raucUpdater.RunRauc("./update.raucb")
+	go util.Reboot(5 * time.Second)
-	if err == nil {
+
-		writeStatus(c, true, "Update started")
+	writeStatus(c, true, "System is rebooting")
-	} else if errors.Is(err, util.ErrAlreadyRunning) {
-		return fiber.NewError(fiber.StatusConflict, "already running")
-	} else {
-		return err
-	}
 	return nil
 }
 
@@ -123,7 +141,6 @@ func errorHandler(c *fiber.Ctx, err error) error {
 	// API error handling
 	if strings.HasPrefix(c.Path(), "/api") {
 		writeStatus(c, false, err.Error())
-		return nil
 	}
 	return err
 }

src/util/util.go

@@ -1,8 +1,72 @@
 package util
 
-import "os"
+import (
+	"crypto/rand"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+const tmpdirPrefix = "sebrauc"
 
 func DoesFileExist(filepath string) bool {
 	_, err := os.Stat(filepath)
 	return !os.IsNotExist(err)
 }
+
+func CreateDirIfNotExists(dirpath string) error {
+	if _, err := os.Stat(dirpath); os.IsNotExist(err) {
+		createErr := os.MkdirAll(dirpath, 0o777)
+		if createErr != nil {
+			return createErr
+		}
+	}
+	return nil
+}
+
+func NewTmpdir() (tmpdir string, err error) {
+	for {
+		bts := make([]byte, 16)
+		_, err = rand.Read(bts)
+		if err != nil {
+			return "", err
+		}
+
+		tmpdir = filepath.Join(os.TempDir(), fmt.Sprintf("%s_%x", tmpdirPrefix, bts))
+
+		if !DoesFileExist(tmpdir) {
+			break
+		}
+	}
+
+	err = CreateDirIfNotExists(tmpdir)
+	return
+}
+
+func PurgeTmpdirs() (count int) {
+	dirs, _ := os.ReadDir(os.TempDir())
+
+	for _, de := range dirs {
+		if !de.IsDir() {
+			continue
+		}
+		if strings.HasPrefix(de.Name(), tmpdirPrefix+"_") {
+			err := os.RemoveAll(filepath.Join(os.TempDir(), de.Name()))
+			if err == nil {
+				count++
+			}
+		}
+	}
+	return
+}
+
+func Reboot(t time.Duration) {
+	time.Sleep(t)
+	/*
+		cmd := exec.Command("shutdown", "-r", "0")
+		_ = cmd.Run()
+	*/
+	fmt.Println("The system would reboot")
+}

src/util/util_test.go

@@ -1,9 +1,12 @@
 package util
 
 import (
+	"os"
+	"path/filepath"
 	"testing"
 
 	"code.thetadev.de/TSGRain/SEBRAUC/src/fixtures"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestDoesFileExist(t *testing.T) {
@@ -36,3 +39,32 @@ func TestDoesFileExist(t *testing.T) {
 		})
 	}
 }
+
+func TestTmpdir(t *testing.T) {
+	PurgeTmpdirs()
+
+	td, err := NewTmpdir()
+	if err != nil {
+		panic(err)
+	}
+
+	tfile := filepath.Join(td, "test.txt")
+	f, err := os.Create(tfile)
+	if err != nil {
+		panic(err)
+	}
+
+	_, err = f.WriteString("Hello")
+	if err != nil {
+		panic(err)
+	}
+	err = f.Close()
+	if err != nil {
+		panic(err)
+	}
+
+	assert.FileExists(t, tfile)
+
+	assert.Equal(t, 1, PurgeTmpdirs())
+	assert.NoFileExists(t, tfile)
+}

ui/.env.development

@@ -0,0 +1 @@
+VITE_API_HOST=127.0.0.1:8080

ui/.gitignore

@@ -0,0 +1,5 @@
+node_modules
+.DS_Store
+dist
+dist-ssr
+*.local

ui/index.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8" />
+		<link rel="icon" type="image/svg+xml" href="/src/assets/favicon.svg" />
+		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+		<title>SEBRAUC</title>
+	</head>
+	<body>
+		<div id="app"></div>
+		<script type="module" src="/src/main.tsx"></script>
+	</body>
+</html>

ui/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "ui",
+  "version": "0.0.0",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "serve": "vite preview"
+  },
+  "dependencies": {
+    "@mdi/js": "^6.5.95",
+    "axios": "^0.24.0",
+    "byte-size": "^8.1.0",
+    "preact": "^10.5.15"
+  },
+  "devDependencies": {
+    "@preact/preset-vite": "^2.1.5",
+    "@types/byte-size": "^8.1.0",
+    "prettier": "^2.4.1",
+    "sass": "^1.43.4",
+    "typescript": "^4.5.2",
+    "vite": "^2.6.14"
+  }
+}

ui/src/assets/favicon.svg

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg width="13mm" height="13mm" version="1.1" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><g transform="translate(-17.612 -12.829)"><text transform="scale(.26458)" fill="#000000" font-family="sans-serif" font-size="40px" style="line-height:1.25;shape-inside:url(#rect23180);white-space:pre" xml:space="preserve"/><g transform="translate(-.003465 .81595)"><path transform="matrix(.27632 0 0 .27632 9.3797 5.4838)" d="m44.365 23.762 33.173 57.457-66.346-2e-6z" fill="#ff0039"/><g transform="translate(.2726 .27517)" fill="#fff" aria-label="SR"><path d="m19.954 22.779q-0.5715 0-1.0477-0.127-0.46567-0.127-0.79375-0.33866v-1.4182q0.46566 0.26458 0.92075 0.41275 0.45508 0.14817 0.93133 0.14817 0.52916 0 0.87841-0.20108 0.34925-0.20108 0.34925-0.62442 0-0.43392-0.254-0.67733-0.254-0.254-0.65616-0.55033-0.3175-0.23283-0.61383-0.51858-0.29633-0.28575-0.48683-0.66675-0.1905-0.39158-0.1905-0.91016 0-0.67733 0.3175-1.1853 0.3175-0.51858 0.89958-0.81491 0.59266-0.29633 1.3758-0.29633 0.59266 0 1.0901 0.127 0.49742 0.127 0.96308 0.381l-0.56092 1.2065q-0.80433-0.381-1.4922-0.381-0.42333 0-0.6985 0.23283-0.27517 0.22225-0.27517 0.61383 0 0.40216 0.24342 0.64558 0.24342 0.23283 0.68791 0.52916 0.62442 0.41275 0.93133 0.91016 0.3175 0.49742 0.3175 1.1642 0 0.79375-0.39158 1.3123-0.381 0.51858-1.0266 0.77258-0.635 0.254-1.4182 0.254z"/><path d="m23.902 22.755 1.5981-7.5565h1.7145q1.1536 0 1.7568 0.48683t0.60325 1.4711q0 0.84666-0.4445 1.4393-0.43392 0.59266-1.3652 0.86783l1.27 3.2914h-1.2382l-1.0689-3.0586h-1.0583l-0.64558 3.0586zm2.667-4.0111q0.94191 0 1.397-0.41275 0.45508-0.41275 0.45508-1.1007 0-0.58208-0.32808-0.81491-0.32808-0.24342-0.98425-0.24342h-0.68791l-0.55033 2.5717z"/></g></g></g></svg>

ui/src/assets/logo.svg

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg width="100mm" height="25mm" version="1.1" viewBox="0 0 100 25" xmlns="http://www.w3.org/2000/svg"><g transform="translate(-16.98 -12.577)"><text transform="scale(.26458)" fill="#000000" font-family="sans-serif" font-size="40px" style="line-height:1.25;shape-inside:url(#rect23180);white-space:pre" xml:space="preserve"/><path transform="matrix(.34507 0 0 .34507 17.422 6.9892)" d="m44.365 23.762 33.173 57.457-66.346-2e-6z" fill="#ff0039"/><g transform="matrix(2.2124 0 0 2.2124 -21.795 -15.418)" fill="#fff" aria-label="SEBRAUC"><path d="m19.954 22.897q-0.5715 0-1.0477-0.127-0.46567-0.127-0.79375-0.33866v-1.4182q0.46566 0.26458 0.92075 0.41275 0.45508 0.14817 0.93133 0.14817 0.52916 0 0.87841-0.20108 0.34925-0.20108 0.34925-0.62442 0-0.43392-0.254-0.67733-0.254-0.254-0.65616-0.55033-0.3175-0.23283-0.61383-0.51858-0.29633-0.28575-0.48683-0.66675-0.1905-0.39158-0.1905-0.91016 0-0.67733 0.3175-1.1853 0.3175-0.51858 0.89958-0.81491 0.59266-0.29633 1.3758-0.29633 0.59266 0 1.0901 0.127 0.49742 0.127 0.96308 0.381l-0.56092 1.2065q-0.80433-0.381-1.4922-0.381-0.42333 0-0.6985 0.23283-0.27517 0.22225-0.27517 0.61383 0 0.40216 0.24342 0.64558 0.24342 0.23283 0.68791 0.52916 0.62442 0.41275 0.93133 0.91016 0.3175 0.49742 0.3175 1.1642 0 0.79375-0.39158 1.3123-0.381 0.51858-1.0266 0.77258-0.635 0.254-1.4182 0.254z"/><path d="m23.785 22.792 1.5981-7.5565h4.2227l-0.27517 1.3123h-2.6458l-0.34925 1.6616h2.4659l-0.28575 1.3123h-2.4659l-0.41275 1.9473h2.6458l-0.27516 1.3229z"/><path d="m29.521 22.792 1.5981-7.5565h2.2013q1.0795 0 1.7357 0.39158 0.65616 0.381 0.65616 1.2912 0 0.77258-0.43392 1.27-0.43392 0.49742-1.2171 0.66675v0.04233q0.51858 0.13758 0.8255 0.508 0.30692 0.35983 0.30692 0.92075 0 0.85725-0.39158 1.4076-0.39158 0.53975-1.0689 0.80433-0.66675 0.254-1.5134 0.254zm3.3126-4.5614q0.56092 0 0.89958-0.22225 0.34925-0.23283 0.34925-0.75142 0-0.70908-0.87841-0.70908h-0.78316l-0.35983 1.6827zm-0.52916 3.2385q0.58208 0 0.93133-0.28575 0.35983-0.29633 0.35983-0.84666 0-0.40217-0.23283-0.61383-0.23283-0.22225-0.70908-0.22225h-0.85725l-0.42333 1.9685z"/><g><path d="m36.199 22.792 1.5981-7.5565h1.7145q1.1536 0 1.7568 0.48683t0.60325 1.4711q0 0.84666-0.4445 1.4393-0.43392 0.59266-1.3652 0.86783l1.27 3.2914h-1.2382l-1.0689-3.0586h-1.0583l-0.64558 3.0586zm2.667-4.0111q0.94191 0 1.397-0.41275t0.45508-1.1007q0-0.58208-0.32808-0.81491-0.32808-0.24342-0.98425-0.24342h-0.68792l-0.55033 2.5717z"/><path d="m41.853 22.792 4.064-7.5565h1.27l0.87841 7.5565h-1.1112l-0.23283-2.1907h-2.5188l-1.1324 2.1907zm2.8575-3.1856h1.9156l-0.15875-1.6933q-0.03175-0.37042-0.0635-0.80433t-0.04233-0.79375h-0.02117q-0.15875 0.37042-0.34925 0.77258-0.1905 0.40216-0.41275 0.83608z"/><path d="m51.302 22.897q-1.1853 0-1.778-0.55033-0.58208-0.56092-0.58208-1.5557 0-0.17992 0.02117-0.42333 0.03175-0.24342 0.09525-0.508l0.98425-4.6249h1.1218l-0.98425 4.6567q-0.05292 0.22225-0.08467 0.46566-0.02117 0.23283-0.02117 0.39158 0 0.55033 0.32808 0.85725 0.32808 0.30692 0.97366 0.30692 0.86783 0 1.2912-0.45508 0.43392-0.46566 0.62441-1.3652l1.0372-4.8577h1.1324l-1.0583 4.953q-0.16933 0.8255-0.53975 1.4393-0.37042 0.60325-0.99483 0.94191-0.62441 0.32808-1.5663 0.32808z"/><path d="m58.784 22.897q-1.3017 0-2.0108-0.78316t-0.70908-2.1272q0-0.67733 0.15875-1.3652 0.15875-0.6985 0.47625-1.3229 0.32808-0.62442 0.80433-1.1112 0.48683-0.49742 1.143-0.77258 0.66675-0.28575 1.4922-0.28575 0.59266 0 1.0583 0.11642 0.47625 0.10583 0.89958 0.33867l-0.45508 0.93133q-0.30692-0.16933-0.66675-0.28575-0.35983-0.11642-0.83608-0.11642-0.74083 0-1.2912 0.33867-0.53975 0.33866-0.89958 0.91016-0.34925 0.56092-0.52916 1.2382-0.16933 0.67733-0.16933 1.3441 0 0.93133 0.4445 1.4499 0.45508 0.51858 1.3017 0.51858 0.43392 0 0.85725-0.09525t0.83608-0.24342v0.98425q-0.381 0.13758-0.83608 0.23283-0.45508 0.10583-1.0689 0.10583z"/></g></g></g></svg>

ui/src/assets/logo_border.svg

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg width="100mm" height="25mm" version="1.1" viewBox="0 0 100 25" xmlns="http://www.w3.org/2000/svg"><g transform="translate(-16.98 -12.577)"><text transform="scale(.26458)" fill="#000000" font-family="sans-serif" font-size="40px" style="line-height:1.25;shape-inside:url(#rect23180);white-space:pre" xml:space="preserve"/><path transform="matrix(.34507 0 0 .34507 17.422 6.9892)" d="m44.365 23.762 33.173 57.457-66.346-2e-6z" fill="#ff0039" stroke="#000" stroke-width="2.3184"/><g transform="matrix(2.2124 0 0 2.2124 -21.795 -15.418)" fill="#fff" stroke="#000" stroke-width=".36159" aria-label="SEBRAUC"><g stroke-width=".36159"><path d="m19.954 22.897q-0.5715 0-1.0477-0.127-0.46567-0.127-0.79375-0.33866v-1.4182q0.46566 0.26458 0.92075 0.41275 0.45508 0.14817 0.93133 0.14817 0.52916 0 0.87841-0.20108 0.34925-0.20108 0.34925-0.62442 0-0.43392-0.254-0.67733-0.254-0.254-0.65616-0.55033-0.3175-0.23283-0.61383-0.51858-0.29633-0.28575-0.48683-0.66675-0.1905-0.39158-0.1905-0.91016 0-0.67733 0.3175-1.1853 0.3175-0.51858 0.89958-0.81491 0.59266-0.29633 1.3758-0.29633 0.59266 0 1.0901 0.127 0.49742 0.127 0.96308 0.381l-0.56092 1.2065q-0.80433-0.381-1.4922-0.381-0.42333 0-0.6985 0.23283-0.27517 0.22225-0.27517 0.61383 0 0.40216 0.24342 0.64558 0.24342 0.23283 0.68791 0.52916 0.62442 0.41275 0.93133 0.91016 0.3175 0.49742 0.3175 1.1642 0 0.79375-0.39158 1.3123-0.381 0.51858-1.0266 0.77258-0.635 0.254-1.4182 0.254z"/><path d="m23.785 22.792 1.5981-7.5565h4.2227l-0.27517 1.3123h-2.6458l-0.34925 1.6616h2.4659l-0.28575 1.3123h-2.4659l-0.41275 1.9473h2.6458l-0.27516 1.3229z"/><path d="m29.521 22.792 1.5981-7.5565h2.2013q1.0795 0 1.7357 0.39158 0.65616 0.381 0.65616 1.2912 0 0.77258-0.43392 1.27-0.43392 0.49742-1.2171 0.66675v0.04233q0.51858 0.13758 0.8255 0.508 0.30692 0.35983 0.30692 0.92075 0 0.85725-0.39158 1.4076-0.39158 0.53975-1.0689 0.80433-0.66675 0.254-1.5134 0.254zm3.3126-4.5614q0.56092 0 0.89958-0.22225 0.34925-0.23283 0.34925-0.75142 0-0.70908-0.87841-0.70908h-0.78316l-0.35983 1.6827zm-0.52916 3.2385q0.58208 0 0.93133-0.28575 0.35983-0.29633 0.35983-0.84666 0-0.40217-0.23283-0.61383-0.23283-0.22225-0.70908-0.22225h-0.85725l-0.42333 1.9685z"/></g><g><path d="m36.199 22.792 1.5981-7.5565h1.7145q1.1536 0 1.7568 0.48683t0.60325 1.4711q0 0.84666-0.4445 1.4393-0.43392 0.59266-1.3652 0.86783l1.27 3.2914h-1.2382l-1.0689-3.0586h-1.0583l-0.64558 3.0586zm2.667-4.0111q0.94191 0 1.397-0.41275t0.45508-1.1007q0-0.58208-0.32808-0.81491-0.32808-0.24342-0.98425-0.24342h-0.68792l-0.55033 2.5717z" stroke-width=".27119"/><path d="m41.853 22.792 4.064-7.5565h1.27l0.87841 7.5565h-1.1112l-0.23283-2.1907h-2.5188l-1.1324 2.1907zm2.8575-3.1856h1.9156l-0.15875-1.6933q-0.03175-0.37042-0.0635-0.80433t-0.04233-0.79375h-0.02117q-0.15875 0.37042-0.34925 0.77258-0.1905 0.40216-0.41275 0.83608z" stroke-width=".27119"/><path d="m51.302 22.897q-1.1853 0-1.778-0.55033-0.58208-0.56092-0.58208-1.5557 0-0.17992 0.02117-0.42333 0.03175-0.24342 0.09525-0.508l0.98425-4.6249h1.1218l-0.98425 4.6567q-0.05292 0.22225-0.08467 0.46566-0.02117 0.23283-0.02117 0.39158 0 0.55033 0.32808 0.85725 0.32808 0.30692 0.97366 0.30692 0.86783 0 1.2912-0.45508 0.43392-0.46566 0.62441-1.3652l1.0372-4.8577h1.1324l-1.0583 4.953q-0.16933 0.8255-0.53975 1.4393-0.37042 0.60325-0.99483 0.94191-0.62441 0.32808-1.5663 0.32808z" stroke-width=".27119"/><path d="m58.784 22.897q-1.3017 0-2.0108-0.78316t-0.70908-2.1272q0-0.67733 0.15875-1.3652 0.15875-0.6985 0.47625-1.3229 0.32808-0.62442 0.80433-1.1112 0.48683-0.49742 1.143-0.77258 0.66675-0.28575 1.4922-0.28575 0.59266 0 1.0583 0.11642 0.47625 0.10583 0.89958 0.33867l-0.45508 0.93133q-0.30692-0.16933-0.66675-0.28575-0.35983-0.11642-0.83608-0.11642-0.74083 0-1.2912 0.33867-0.53975 0.33866-0.89958 0.91016-0.34925 0.56092-0.52916 1.2382-0.16933 0.67733-0.16933 1.3441 0 0.93133 0.4445 1.4499 0.45508 0.51858 1.3017 0.51858 0.43392 0 0.85725-0.09525t0.83608-0.24342v0.98425q-0.381 0.13758-0.83608 0.23283-0.45508 0.10583-1.0689 0.10583z" stroke-width=".27119"/></g></g></g></svg>

ui/src/assets/logo_square_src.svg

@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="13mm"
+   height="13mm"
+   viewBox="0 0 13 13"
+   version="1.1"
+   id="svg5"
+   sodipodi:docname="logo_square_src.svg"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20, custom)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
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ui/src/assets/logo_src.svg

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ui/src/components/Dropzone/Dropzone.scss

@@ -0,0 +1,9 @@
+.dropzone {
+	&.highlight {
+		filter: brightness(0.5);
+	}
+
+	.fileholder {
+		display: none;
+	}
+}

ui/src/components/Dropzone/Dropzone.tsx

@@ -0,0 +1,119 @@
+import {Component, createRef, JSX, ComponentChild, ComponentChildren} from "preact"
+import "./Dropzone.scss"
+
+type Props = {
+	disabled: boolean
+	clickable: boolean
+	multiple: boolean
+	accept?: string
+	onFilesAdded?: (files: File[]) => void
+
+	children?: ComponentChild | ComponentChildren
+}
+
+type State = {
+	highlight: boolean
+}
+
+export default class Dropzone extends Component<Props, State> {
+	static defaultProps = {
+		disabled: false,
+		clickable: false,
+		multiple: false,
+	}
+
+	private fileInputRef = createRef<HTMLInputElement>()
+
+	openFileDialog() {
+		this.fileInputRef.current?.click()
+	}
+
+	reset() {
+		const input = this.fileInputRef.current
+		if (input === null) return
+		input.value = ""
+	}
+
+	private onClick = () => {
+		if (this.props.disabled || !this.props.clickable) return
+		this.openFileDialog()
+	}
+
+	private onFilesAdded = (evt: JSX.TargetedEvent) => {
+		if (this.props.disabled || evt.target === null) return
+
+		const input = evt.target as HTMLInputElement
+		const files = input.files
+
+		if (this.props.onFilesAdded) {
+			const array = this.fileListToArray(files)
+			this.props.onFilesAdded(array)
+		}
+	}
+
+	private onDragOver = (evt: DragEvent) => {
+		evt.preventDefault()
+
+		if (this.props.disabled) return
+
+		this.setState({highlight: true})
+	}
+
+	private onDragLeave = () => {
+		this.setState({highlight: false})
+	}
+
+	private onDrop = (evt: DragEvent) => {
+		evt.preventDefault()
+		this.setState({highlight: false})
+
+		if (this.props.disabled || evt.dataTransfer === null) return
+
+		const files = evt.dataTransfer.files
+
+		if (!this.props.multiple && files.length > 1) return
+
+		if (this.props.onFilesAdded) {
+			const array = this.fileListToArray(files)
+			this.props.onFilesAdded(array)
+		}
+	}
+
+	private fileListToArray(list: FileList | null): File[] {
+		const array: File[] = []
+		if (list === null) return array
+
+		for (var i = 0; i < list.length; i++) {
+			array.push(list.item(i)!)
+		}
+		return array
+	}
+
+	render() {
+		return (
+			<div
+				class={`dropzone ${this.state.highlight ? "highlight" : ""}`}
+				onDragOver={this.onDragOver}
+				onDragLeave={this.onDragLeave}
+				onDrop={this.onDrop}
+				onClick={this.onClick}
+				style={{
+					cursor:
+						!this.props.disabled && this.props.clickable
+							? "pointer"
+							: "default",
+				}}
+			>
+				<input
+					ref={this.fileInputRef}
+					class="fileholder"
+					type="file"
+					multiple={this.props.multiple}
+					accept={this.props.accept}
+					onInput={this.onFilesAdded}
+				/>
+				{this.props.children}
+			</div>
+		)
+	}
+}

ui/src/components/Icon/Icon.scss

@@ -0,0 +1,30 @@
+.icon {
+	vertical-align: sub;
+
+	> svg {
+		color: inherit;
+		fill: currentColor;
+	}
+}
+
+.iconButton {
+	height: 36px;
+	width: 36px;
+
+	display: flex;
+	align-items: center;
+
+	border-radius: 50%;
+	border: none;
+
+	background: #1f85de;
+	color: #fff;
+
+	&:hover {
+		background-color: #666;
+	}
+
+	&:active {
+		background-color: #555;
+	}
+}

ui/src/components/Icon/Icon.tsx

@@ -0,0 +1,29 @@
+import {Component} from "preact"
+import "./Icon.scss"
+
+type Props = {
+	icon: string
+	size: number
+	color?: string
+}
+
+export default class Icon extends Component<Props> {
+	static defaultProps = {
+		size: 24,
+	}
+
+	render() {
+		return (
+			<span class="icon" style={{color: this.props.color}}>
+				<svg
+					xmlns="http://www.w3.org/2000/svg"
+					style={`height: ${this.props.size}px; width: ${this.props.size}px;`}
+					viewBox="0 0 24 24"
+					aria-hidden="true"
+				>
+					<path d={this.props.icon} />
+				</svg>
+			</span>
+		)
+	}
+}

ui/src/components/ProgressCircle/ProgressCircle.scss

@@ -0,0 +1,46 @@
+.progress-box {
+	width: 250px;
+	height: 250px;
+	position: relative;
+
+	svg {
+		width: 100%;
+		height: auto;
+
+		.progress-path {
+			transition: stroke-dasharray 0.5s;
+		}
+
+		circle {
+			transition: fill 0.5s;
+		}
+	}
+
+	button {
+		position: absolute;
+		top: 50%;
+		left: 50%;
+		transform: translate(-50%, -50%);
+
+		display: flex;
+		justify-content: center;
+		align-items: center;
+
+		height: 64px;
+		width: 64px;
+
+		color: white;
+		background: transparent;
+		border: none;
+		cursor: pointer;
+		border-radius: 50%;
+
+		&:hover {
+			background-color: #666;
+		}
+
+		&:active {
+			background-color: #555;
+		}
+	}
+}

ui/src/components/ProgressCircle/ProgressCircle.tsx

@@ -0,0 +1,60 @@
+import {Component, ComponentChild, ComponentChildren} from "preact"
+import "./ProgressCircle.scss"
+
+type Props = {
+	ready: boolean
+	progress: number
+	color: string
+
+	children?: ComponentChild | ComponentChildren
+}
+
+export default class ProgressCircle extends Component<Props> {
+	static defaultProps = {
+		ready: false,
+		progress: 0,
+		color: "#FDB900",
+	}
+
+	render() {
+		const percentage = this.props.ready ? 0 : this.props.progress
+		const visible = !this.props.ready && this.props.progress > 0
+
+		return (
+			<div class="progress-box">
+				<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
+					<circle cx="50" cy="50" r="45" fill={this.props.color} />
+
+					{visible ? (
+						<path
+							class="progress-path"
+							stroke-linecap="round"
+							stroke-width="5"
+							stroke="#fff"
+							fill="none"
+							d="M50 10
+			   a 40 40 0 0 1 0 80
+			   a 40 40 0 0 1 0 -80"
+							stroke-dasharray={`${percentage * 2.512}, 251.2`}
+						/>
+					) : null}
+
+					{visible ? (
+						<text
+							id="count"
+							x="50"
+							y="50"
+							text-anchor="middle"
+							dy="7"
+							font-size="20"
+							fill="#fff"
+						>
+							{percentage}%
+						</text>
+					) : null}
+				</svg>
+				{visible ? null : this.props.children}
+			</div>
+		)
+	}
+}

ui/src/components/Upload/Alert.tsx

@@ -0,0 +1,29 @@
+import {Component} from "preact"
+import {mdiTriangleOutline} from "@mdi/js"
+import Icon from "../Icon/Icon"
+
+type Props = {
+	source?: string
+	message: string
+}
+
+export default class Alert extends Component<Props> {
+	private stripMessage(message: string): string {
+		return message.replace(/^error:/i, "").trim()
+	}
+
+	render() {
+		let msg = ""
+		if (this.props.source !== undefined) msg += `${this.props.source} error: `
+		msg += this.stripMessage(this.props.message)
+
+		return (
+			<div class="alert">
+				<span>
+					<Icon icon={mdiTriangleOutline} color="#FF0039" />
+					{msg}
+				</span>
+			</div>
+		)
+	}
+}

ui/src/components/Upload/Reboot.tsx

@@ -0,0 +1,51 @@
+import {mdiCheckCircleOutline, mdiRestore} from "@mdi/js"
+import axios, {AxiosError, AxiosResponse} from "axios"
+import {Component} from "preact"
+import {apiUrl} from "../../util/apiUrls"
+import Icon from "../Icon/Icon"
+
+export default class Reboot extends Component {
+	private triggerReboot = () => {
+		const res = confirm("Reboot the system?")
+		if (!res) return
+
+		axios
+			.post(apiUrl + "/reboot")
+			.then((response: AxiosResponse) => {
+				const msg = response.data.msg
+
+				if (msg !== undefined) {
+					alert(msg)
+				} else {
+					alert("No response")
+				}
+			})
+			.catch((error: AxiosError) => {
+				if (error.response) {
+					const msg = error.response.data.msg
+
+					if (msg !== undefined) {
+						alert("Error: " + msg)
+					} else {
+						alert("Error: no response")
+					}
+				} else {
+					alert(String(error))
+				}
+			})
+	}
+
+	render() {
+		return (
+			<div class="alert">
+				<span>
+					<Icon icon={mdiCheckCircleOutline} color="#148420" />
+					Reboot the system to apply the update
+				</span>
+				<button class="iconButton" onClick={this.triggerReboot}>
+					<Icon icon={mdiRestore} />
+				</button>
+			</div>
+		)
+	}
+}

ui/src/components/Upload/Updater.scss

@@ -0,0 +1,44 @@
+.uploader {
+	display: flex;
+	flex-direction: column;
+	justify-content: center;
+	align-items: center;
+
+	margin: 0 auto;
+	max-width: 500px;
+	width: 90%;
+
+	> * {
+		width: 100%;
+	}
+
+	.card {
+		display: flex;
+		flex-direction: column;
+		justify-content: center;
+		align-items: center;
+
+		padding: 15px 8px;
+		margin: 8px 0;
+
+		text-align: center;
+
+		border: 3px solid #fff;
+		border-radius: 16px;
+
+		.top {
+			font-size: 1.5em;
+		}
+	}
+
+	.alert {
+		display: flex;
+		justify-content: space-between;
+		margin: 0.6em 0;
+		border-radius: 16px;
+
+		.icon {
+			margin-right: 0.4em;
+		}
+	}
+}

ui/src/components/Upload/Updater.tsx

@@ -0,0 +1,248 @@
+import {Component, createRef} from "preact"
+import {mdiUpload} from "@mdi/js"
+import byteSize from "byte-size"
+import Dropzone from "../Dropzone/Dropzone"
+import ProgressCircle from "../ProgressCircle/ProgressCircle"
+import Icon from "../Icon/Icon"
+import "./Updater.scss"
+import axios from "axios"
+import Alert from "./Alert"
+import Reboot from "./Reboot"
+import {apiUrl, wsUrl} from "../../util/apiUrls"
+
+class UploadStatus {
+	uploading = false
+	total = 0
+	loaded = 0
+	lastError = ""
+
+	constructor(uploading: boolean, total = 0, loaded = 0, lastError = "") {
+		this.uploading = uploading
+		this.total = total
+		this.loaded = loaded
+		this.lastError = lastError
+	}
+
+	static fromProgressEvent(progressEvent: {
+		loaded: number
+		total: number
+	}): UploadStatus {
+		return new UploadStatus(true, progressEvent.total, progressEvent.loaded)
+	}
+}
+
+class RaucStatus {
+	installing = false
+	percent = 0
+	message = ""
+	last_error = ""
+	log = ""
+}
+
+const byteSizeOptions = {units: "metric"}
+
+type Props = {}
+
+type State = {
+	uploadStatus: UploadStatus
+	uploadFilename: string
+	raucStatus: RaucStatus
+	wsConnected: boolean
+}
+
+export default class Updater extends Component<Props, State> {
+	private dropzoneRef = createRef<Dropzone>()
+	private conn: WebSocket | undefined
+
+	constructor(props?: Props | undefined, context?: any) {
+		super(props, context)
+
+		this.state = {
+			uploadStatus: new UploadStatus(false),
+			uploadFilename: "",
+			raucStatus: new RaucStatus(),
+			wsConnected: false,
+		}
+
+		this.connectWebsocket()
+	}
+
+	private buttonClick = () => {
+		if (!this.acceptUploads()) return
+
+		this.dropzoneRef.current?.openFileDialog()
+	}
+
+	private onFilesAdded = (files: File[]) => {
+		if (files.length === 0) return
+		const newFile = files[0]
+
+		const formData = new FormData()
+		formData.append("updateFile", newFile)
+
+		this.setState({
+			uploadStatus: new UploadStatus(true, newFile.size, 0),
+			uploadFilename: newFile.name,
+		})
+
+		axios
+			.post(apiUrl + "/update", formData, {
+				headers: {
+					"Content-Type": "multipart/form-data",
+				},
+				onUploadProgress: (progressEvent: {loaded: number; total: number}) => {
+					this.setState({
+						uploadStatus: UploadStatus.fromProgressEvent(progressEvent),
+					})
+				},
+			})
+			.then(() => {
+				this.resetUpload()
+			})
+			.catch((reason: any) => {
+				this.resetUpload(String(reason))
+			})
+	}
+
+	private resetUpload = (lastError = "") => {
+		this.setState({
+			uploadStatus: new UploadStatus(false, 0, 0, lastError),
+		})
+		this.dropzoneRef.current?.reset()
+	}
+
+	private connectWebsocket = () => {
+		if (window.WebSocket) {
+			this.conn = new WebSocket(wsUrl)
+			this.conn.onopen = () => {
+				this.setState({wsConnected: true})
+				console.log("WS connected")
+			}
+			this.conn.onclose = () => {
+				this.setState({wsConnected: false})
+				console.log("WS connection closed")
+				window.setTimeout(this.connectWebsocket, 3000)
+			}
+			this.conn.onmessage = (evt) => {
+				var messages = evt.data.split("\n")
+				for (var i = 0; i < messages.length; i++) {
+					this.setState({
+						raucStatus: Object.assign(
+							new RaucStatus(),
+							JSON.parse(messages[i])
+						),
+					})
+
+					console.log(this.state.raucStatus)
+				}
+			}
+		} else {
+			console.log("Your browser does not support WebSockets")
+		}
+	}
+
+	private acceptUploads(): boolean {
+		return !this.state.uploadStatus.uploading && !this.state.raucStatus.installing
+	}
+
+	private updateCompleted(): boolean {
+		return (
+			!this.state.raucStatus.installing &&
+			this.state.raucStatus.percent === 100 &&
+			this.state.raucStatus.last_error === ""
+		)
+	}
+
+	private uploadPercentage(): number {
+		if (this.state.uploadStatus.uploading && this.state.uploadStatus.total > 0) {
+			return Math.round(
+				(this.state.uploadStatus.loaded / this.state.uploadStatus.total) * 100
+			)
+		}
+		return 0
+	}
+
+	private circleColor(): string {
+		if (this.state.raucStatus.installing) return "#FF0039"
+		if (this.state.uploadStatus.uploading) return "#148420"
+		return "#1f85de"
+	}
+
+	private circlePercentage(): number {
+		if (this.acceptUploads()) return 0
+		if (this.state.raucStatus.installing) return this.state.raucStatus.percent
+		if (this.state.uploadStatus.uploading) return this.uploadPercentage()
+		return 0
+	}
+
+	render() {
+		const acceptUploads = this.acceptUploads()
+		const circleColor = this.circleColor()
+		const circlePercentage = this.circlePercentage()
+		const updateCompleted = this.updateCompleted()
+
+		let topText = ""
+		let bottomText = ""
+		let bottomText2 = ""
+
+		if (this.state.uploadStatus.uploading) {
+			topText = "Uploading"
+			bottomText = this.state.uploadFilename
+			bottomText2 = `${byteSize(this.state.uploadStatus.loaded, byteSizeOptions)}
+			/
+			${byteSize(this.state.uploadStatus.total, byteSizeOptions)}`
+		} else if (this.state.raucStatus.installing) {
+			topText = "Updating firmware"
+			bottomText = this.state.raucStatus.message
+		} else {
+			topText = "Upload firmware package"
+		}
+
+		return (
+			<div class="uploader">
+				<div class="card upload">
+					<div>
+						<p class="top">{topText}</p>
+					</div>
+					<Dropzone
+						ref={this.dropzoneRef}
+						onFilesAdded={this.onFilesAdded}
+						disabled={!acceptUploads}
+						accept=".raucb"
+					>
+						<ProgressCircle
+							ready={acceptUploads}
+							progress={circlePercentage}
+							color={circleColor}
+						>
+							<button onClick={this.buttonClick}>
+								<Icon icon={mdiUpload} size={50} />
+							</button>
+						</ProgressCircle>
+					</Dropzone>
+					<div>
+						<p>{bottomText}</p>
+						<p>{bottomText2}</p>
+					</div>
+				</div>
+				<div>
+					{this.state.wsConnected ? null : <Alert message="No connection" />}
+
+					{this.state.uploadStatus.lastError ? (
+						<Alert
+							source="Upload"
+							message={this.state.uploadStatus.lastError}
+						/>
+					) : null}
+					{this.state.raucStatus.last_error ? (
+						<Alert
+							source="Update"
+							message={this.state.raucStatus.last_error}
+						/>
+					) : null}
+				</div>
+				{updateCompleted ? <Reboot /> : null}
+			</div>
+		)
+	}
+}

ui/src/components/app.tsx

@@ -0,0 +1,14 @@
+import {Component} from "preact"
+import Updater from "./Upload/Updater"
+import logo from "../assets/logo.svg"
+
+export default class App extends Component {
+	render() {
+		return (
+			<div>
+				<img src={logo} height="64" />
+				<Updater />
+			</div>
+		)
+	}
+}

ui/src/main.tsx

@@ -0,0 +1,5 @@
+import {render} from "preact"
+import App from "./components/app"
+import "./style/index.scss"
+
+render(<App />, document.getElementById("app")!)

ui/src/preact.d.ts

@@ -0,0 +1 @@
+import JSX = preact.JSX

ui/src/style/index.scss

@@ -0,0 +1,26 @@
+html,
+body {
+	height: 100%;
+	width: 100%;
+	padding: 0;
+	margin: 0;
+	background: #fafafa;
+	font-family: "Helvetica Neue", arial, sans-serif;
+	font-weight: 400;
+	color: #444;
+	-webkit-font-smoothing: antialiased;
+	-moz-osx-font-smoothing: grayscale;
+
+	background-color: #222;
+	color: #fff;
+}
+
+#app {
+	padding-top: 100px;
+	font-size: 1.2em;
+	text-align: center;
+}
+
+p {
+	margin: 0.3em 0;
+}

ui/src/util/apiUrls.ts

@@ -0,0 +1,12 @@
+let apiHost = document.location.host
+const httpProto = document.location.protocol
+const wsProto = httpProto === "https:" ? "wss:" : "ws:"
+
+if (import.meta.env.VITE_API_HOST !== undefined) {
+	apiHost = import.meta.env.VITE_API_HOST as string
+}
+
+const apiUrl = `${httpProto}//${apiHost}/api`
+const wsUrl = `${wsProto}//${apiHost}/api/ws`
+
+export {apiUrl, wsUrl}

ui/src/vite-env.d.ts

@@ -0,0 +1 @@
+/// <reference types="vite/client" />

ui/tsconfig.json

@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "useDefineForClassFields": true,
+    "lib": ["DOM", "DOM.Iterable", "ESNext"],
+    "allowJs": false,
+    "skipLibCheck": true,
+    "esModuleInterop": false,
+    "allowSyntheticDefaultImports": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "module": "ESNext",
+    "moduleResolution": "Node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "preserve",
+    "jsxFactory": "h",
+    "jsxFragmentFactory": "Fragment"
+  }
+}

ui/ui.go

@@ -0,0 +1,10 @@
+package ui
+
+import (
+	"embed"
+)
+
+const AssetsDir = "dist"
+
+//go:embed dist/**
+var Assets embed.FS

ui/vite.config.ts

@@ -0,0 +1,7 @@
+import {defineConfig} from "vite"
+import preact from "@preact/preset-vite"
+
+// https://vitejs.dev/config/
+export default defineConfig({
+	plugins: [preact()],
+})