From 71f152ef2aa5788741be5806539e2da219fcde00 Mon Sep 17 00:00:00 2001 From: 2mal3 <56305732+2mal3@users.noreply.github.com> Date: Fri, 30 Jan 2026 15:26:57 +0100 Subject: [PATCH] refactor(display): use chrome devtools protocol (#38) --- control/frontend/src/lib/ts/api_handler.ts | 11 ++ .../frontend/src/routes/ControlView.svelte | 5 +- control/main.go | 2 +- {shared => control}/open_browser.go | 15 +- display/README.md | 6 + display/browser/main.go | 72 +++++++ display/go.mod | 13 +- display/go.sum | 18 ++ display/main.go | 14 +- display/pkg/file_handler.go | 75 -------- display/pkg/main.go | 53 +++--- display/pkg/main.templ | 148 +++++++++++++++ display/pkg/open_file.go | 108 +++++++++++ display/pkg/start_screen.go | 117 ++++++++++++ display/requests/openWebsite.bru | 22 +++ display/web/embed.go | 12 -- display/web/main.go | 178 ++---------------- display/web/main.templ | 123 ------------ display/web/sse.go | 75 -------- display/web/static/htmx-ext-sse.min.js | 1 - display/web/static/htmx.min.js | 1 - go.work.sum | 2 + nixos/configuration.nix | 1 - shared/embed.go | 2 +- 24 files changed, 570 insertions(+), 504 deletions(-) rename {shared => control}/open_browser.go (69%) create mode 100644 display/browser/main.go delete mode 100644 display/pkg/file_handler.go create mode 100644 display/pkg/main.templ create mode 100644 display/pkg/open_file.go create mode 100644 display/pkg/start_screen.go create mode 100644 display/requests/openWebsite.bru delete mode 100644 display/web/embed.go delete mode 100644 display/web/main.templ delete mode 100644 display/web/sse.go delete mode 100644 display/web/static/htmx-ext-sse.min.js delete mode 100644 display/web/static/htmx.min.js diff --git a/control/frontend/src/lib/ts/api_handler.ts b/control/frontend/src/lib/ts/api_handler.ts index e9d9317..a282ab5 100755 --- a/control/frontend/src/lib/ts/api_handler.ts +++ b/control/frontend/src/lib/ts/api_handler.ts @@ -51,6 +51,17 @@ export async function show_html(ip: string, html: string): Promise { await request_display(ip, '/showHTML', options); } +export async function open_website(ip: string, url: string): Promise { + const options = { + method: 'PATCH', + headers: { 'content-type': 'application/json' }, + body: JSON.stringify({ + url: url + }) + }; + await request_display(ip, '/openWebsite', options); +} + export async function get_file_data( ip: string, path: string diff --git a/control/frontend/src/routes/ControlView.svelte b/control/frontend/src/routes/ControlView.svelte index d0161fb..a169236 100644 --- a/control/frontend/src/routes/ControlView.svelte +++ b/control/frontend/src/routes/ControlView.svelte @@ -21,7 +21,8 @@ show_blackscreen, shutdown, startup, - show_html + show_html, + open_website } from '$lib/ts/api_handler'; import { get_display_by_id, @@ -144,7 +145,7 @@ async function send_website() { popup_content.open = false; await run_on_all_selected_displays((d) => - show_html(d.ip, ``) + open_website(d.ip, website_url) ); } diff --git a/control/main.go b/control/main.go index 4b35913..261e3c7 100644 --- a/control/main.go +++ b/control/main.go @@ -64,7 +64,7 @@ func main() { os.Exit(1) } }() - err = shared.OpenBrowserWindow("http://localhost:"+port, false, "control") + err = openBrowserWindow("http://localhost:" + port) if err != nil { slog.Error("Failed to open browser window", "error", err) os.Exit(1) diff --git a/shared/open_browser.go b/control/open_browser.go similarity index 69% rename from shared/open_browser.go rename to control/open_browser.go index 9f9e678..2d45d58 100644 --- a/shared/open_browser.go +++ b/control/open_browser.go @@ -1,4 +1,4 @@ -package shared +package main import ( "errors" @@ -6,35 +6,30 @@ import ( "os" "os/exec" "path/filepath" + "plg-mudics/shared" ) -func OpenBrowserWindow(url string, fullscreen bool, profile string) error { +func openBrowserWindow(url string) error { bins := []string{"chromium", "chromium-browser"} home, err := os.UserHomeDir() if err != nil { return fmt.Errorf("unable to determine user home directory: %w", err) } - browserProfileDirPath := filepath.Join(home, ".local", "share", "plg-mudics", fmt.Sprintf("browser-%s", profile)) + browserProfileDirPath := filepath.Join(home, ".local", "share", "plg-mudics", "browser-control") if err := os.MkdirAll(browserProfileDirPath, os.ModePerm); err != nil { return fmt.Errorf("failed to create local config directory: %w", err) } args := []string{ fmt.Sprintf("--app=%s", url), - "--autoplay-policy=no-user-gesture-required", fmt.Sprintf("--user-data-dir=%s", browserProfileDirPath), - "--allow-running-insecure-content", - "--disable-features=XFrameOptions", - } - if fullscreen { - args = append(args, "--start-fullscreen") } errs := []string{} for _, bin := range bins { cmd := exec.Command(bin, args...) - commandOutput := RunShellCommand(cmd) + commandOutput := shared.RunShellCommand(cmd) if commandOutput.ExitCode == 0 { return nil } diff --git a/display/README.md b/display/README.md index 1c6b335..f884b7c 100644 --- a/display/README.md +++ b/display/README.md @@ -62,6 +62,12 @@ Even when the command itself fails. The screenshot as binary in the response body. +## PATCH `/openWebsite` + +### Request Body + +- `url`: string + ## POST `/file/` - Upload File ### Responses diff --git a/display/browser/main.go b/display/browser/main.go new file mode 100644 index 0000000..4a4ef70 --- /dev/null +++ b/display/browser/main.go @@ -0,0 +1,72 @@ +package browser + +import ( + "context" + "fmt" + "os" + "path/filepath" + + "github.com/chromedp/chromedp" +) + +var Browser BrowserType = BrowserType{} + +type BrowserType struct { + Ctx context.Context + Cancel context.CancelFunc +} + +func (b *BrowserType) Init() error { + home, err := os.UserHomeDir() + if err != nil { + return fmt.Errorf("unable to determine user home directory: %w", err) + } + browserProfileDirPath := filepath.Join(home, ".local", "share", "plg-mudics", "browser-display") + if err := os.MkdirAll(browserProfileDirPath, os.ModePerm); err != nil { + return fmt.Errorf("failed to create local config directory: %w", err) + } + + opts := []chromedp.ExecAllocatorOption{ + chromedp.Flag("headless", false), + chromedp.Flag("app", "http://example.com"), // app mode prevents a few unwanted features of chrome, the start url is directly overwritten + chromedp.Flag("start-fullscreen", true), + chromedp.Flag("hide-scrollbars", true), + chromedp.Flag("allow-file-access-from-files", true), + chromedp.Flag("user-data-dir", browserProfileDirPath), + chromedp.Flag("autoplay-policy", "no-user-gesture-required"), + } + + initCtx, _ := chromedp.NewExecAllocator(context.Background(), opts...) + b.Ctx, b.Cancel = chromedp.NewContext(initCtx) + + return nil +} + +func (b *BrowserType) OpenPage(url string) { + chromedp.Run(b.Ctx, chromedp.Navigate(url)) +} + +// Yes, we need that trick with creating a temp file and not directly sending html since +// chrome only allows us to access local files via other local files +func (b *BrowserType) OpenHTML(html string) error { + var err error + + tempFile, err := os.CreateTemp("", "mudics-*.html") + if err != nil { + return fmt.Errorf("could not create tempfile: %w", err) + } + defer tempFile.Close() + + _, err = tempFile.WriteString(html) + if err != nil { + return fmt.Errorf("could not write to tempfile: %w", err) + } + + chromedp.Run(b.Ctx, chromedp.Navigate("file://"+tempFile.Name())) + + return nil +} + +func (b *BrowserType) OpenPDF(path string) { + b.OpenPage("file://" + path + "#toolbar=0&view=Fit") +} diff --git a/display/go.mod b/display/go.mod index 78209ca..b5291b6 100644 --- a/display/go.mod +++ b/display/go.mod @@ -1,9 +1,10 @@ module plg-mudics/display -go 1.24.4 +go 1.25 require ( - github.com/a-h/templ v0.3.960 + github.com/a-h/templ v0.3.977 + github.com/chromedp/chromedp v0.14.2 github.com/gabriel-vasile/mimetype v1.4.11 github.com/labstack/echo/v4 v4.15.0 github.com/micmonay/keybd_event v1.1.2 @@ -14,9 +15,15 @@ require ( github.com/a-h/parse v0.0.0-20250122154542-74294addb73e // indirect github.com/andybalholm/brotli v1.1.0 // indirect github.com/cenkalti/backoff/v4 v4.3.0 // indirect + github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d // indirect + github.com/chromedp/sysutil v1.1.0 // indirect github.com/cli/browser v1.3.0 // indirect github.com/fatih/color v1.16.0 // indirect github.com/fsnotify/fsnotify v1.7.0 // indirect + github.com/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e // indirect + github.com/gobwas/httphead v0.1.0 // indirect + github.com/gobwas/pool v0.2.1 // indirect + github.com/gobwas/ws v1.4.0 // indirect github.com/labstack/gommon v0.4.2 // indirect github.com/mattn/go-colorable v0.1.14 // indirect github.com/mattn/go-isatty v0.0.20 // indirect @@ -27,7 +34,7 @@ require ( golang.org/x/mod v0.30.0 // indirect golang.org/x/net v0.48.0 // indirect golang.org/x/sync v0.19.0 // indirect - golang.org/x/sys v0.39.0 // indirect + golang.org/x/sys v0.40.0 // indirect golang.org/x/text v0.32.0 // indirect golang.org/x/time v0.14.0 // indirect golang.org/x/tools v0.39.0 // indirect diff --git a/display/go.sum b/display/go.sum index 4f13d10..28a87f5 100644 --- a/display/go.sum +++ b/display/go.sum @@ -2,10 +2,18 @@ github.com/a-h/parse v0.0.0-20250122154542-74294addb73e h1:HjVbSQHy+dnlS6C3XajZ6 github.com/a-h/parse v0.0.0-20250122154542-74294addb73e/go.mod h1:3mnrkvGpurZ4ZrTDbYU84xhwXW2TjTKShSwjRi2ihfQ= github.com/a-h/templ v0.3.960 h1:trshEpGa8clF5cdI39iY4ZrZG8Z/QixyzEyUnA7feTM= github.com/a-h/templ v0.3.960/go.mod h1:oCZcnKRf5jjsGpf2yELzQfodLphd2mwecwG4Crk5HBo= +github.com/a-h/templ v0.3.977 h1:kiKAPXTZE2Iaf8JbtM21r54A8bCNsncrfnokZZSrSDg= +github.com/a-h/templ v0.3.977/go.mod h1:oCZcnKRf5jjsGpf2yELzQfodLphd2mwecwG4Crk5HBo= github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M= github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY= github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8= github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE= +github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d h1:ZtA1sedVbEW7EW80Iz2GR3Ye6PwbJAJXjv7D74xG6HU= +github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d/go.mod h1:NItd7aLkcfOA/dcMXvl8p1u+lQqioRMq/SqDp71Pb/k= +github.com/chromedp/chromedp v0.14.2 h1:r3b/WtwM50RsBZHMUm9fsNhhzRStTHrKdr2zmwbZSzM= +github.com/chromedp/chromedp v0.14.2/go.mod h1:rHzAv60xDE7VNy/MYtTUrYreSc0ujt2O1/C3bzctYBo= +github.com/chromedp/sysutil v1.1.0 h1:PUFNv5EcprjqXZD9nJb9b/c9ibAbxiYo4exNWZyipwM= +github.com/chromedp/sysutil v1.1.0/go.mod h1:WiThHUdltqCNKGc4gaU50XgYjwjYIhKWoHGPTUfWTJ8= github.com/cli/browser v1.3.0 h1:LejqCrpWr+1pRqmEPDGnTZOjsMe7sehifLynZJuqJpo= github.com/cli/browser v1.3.0/go.mod h1:HH8s+fOAxjhQoBUAsKuPCbqUuxZDhQ2/aD+SzsEfBTk= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= @@ -16,6 +24,14 @@ github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nos github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM= github.com/gabriel-vasile/mimetype v1.4.11 h1:AQvxbp830wPhHTqc1u7nzoLT+ZFxGY7emj5DR5DYFik= github.com/gabriel-vasile/mimetype v1.4.11/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s= +github.com/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e h1:Lf/gRkoycfOBPa42vU2bbgPurFong6zXeFtPoxholzU= +github.com/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e/go.mod h1:uNVvRXArCGbZ508SxYYTC5v1JWoz2voff5pm25jU1Ok= +github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU= +github.com/gobwas/httphead v0.1.0/go.mod h1:O/RXo79gxV8G+RqlR/otEwx4Q36zl9rqC5u12GKvMCM= +github.com/gobwas/pool v0.2.1 h1:xfeeEhW7pwmX8nuLVlqbzVc7udMDrwetjEv+TZIz1og= +github.com/gobwas/pool v0.2.1/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw= +github.com/gobwas/ws v1.4.0 h1:CTaoG1tojrh4ucGPcoJFiAQUAsEWekEWvLy7GsVNqGs= +github.com/gobwas/ws v1.4.0/go.mod h1:G3gNqMNtPppf5XUz7O4shetPpcZ1VJ7zt18dlUeakrc= github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/labstack/echo/v4 v4.13.4 h1:oTZZW+T3s9gAu5L8vmzihV7/lkXGZuITzTQkTEhcXEA= @@ -64,6 +80,8 @@ golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA= golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k= golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk= golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks= +golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ= +golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks= golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4= golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU= golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU= diff --git a/display/main.go b/display/main.go index ba4ab5c..a2f5792 100644 --- a/display/main.go +++ b/display/main.go @@ -4,9 +4,9 @@ import ( "log/slog" "os" + "plg-mudics/display/browser" "plg-mudics/display/pkg" "plg-mudics/display/web" - "plg-mudics/shared" ) //go:generate go tool templ generate @@ -25,10 +25,10 @@ func main() { // the order is important, the open browser command exitsts as soon as the winodw is closed // and since its the last action in the main go func all other goroutines (e.g. the webserver) are killed - go web.StartWebServer(shared.Version, port) - err = shared.OpenBrowserWindow("http://localhost:"+port, true, "display") - if err != nil { - slog.Error("Failed to open browser window", "error", err) - os.Exit(1) - } + go web.StartWebServer(port) + + browser.Browser.Init() + pkg.OpenStartScreen() + defer browser.Browser.Cancel() + <-browser.Browser.Ctx.Done() } diff --git a/display/pkg/file_handler.go b/display/pkg/file_handler.go deleted file mode 100644 index c751f15..0000000 --- a/display/pkg/file_handler.go +++ /dev/null @@ -1,75 +0,0 @@ -package pkg - -import ( - "fmt" - "log/slog" - "os" - "os/exec" - "path/filepath" - "plg-mudics/shared" - "syscall" - - "github.com/gabriel-vasile/mimetype" -) - -var FileHandler fileHandler = fileHandler{} - -type fileHandler struct { - runningProgram *exec.Cmd -} - -func (fh *fileHandler) OpenFile(path string) error { - var err error - - mType, err := mimetype.DetectFile(path) - if err != nil { - return fmt.Errorf("failed to detect mime type: %w", err) - } - - tempDirPath, err := os.MkdirTemp("", "plg-mudics-program-profile-") - if err != nil { - return fmt.Errorf("failed to create temporary profile directory: %w", err) - } - - err = fh.CloseRunningProgram() - if err != nil { - return err - } - - switch mType.String() { - case "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation": - // yes, we need this weird workaround to delete lock files since libreoffice - // doesn't expose an option to ignore them or prevent their creation - // the --view argument for some reason doesn't work with --show - parent := filepath.Dir(path) - cmd := exec.Command("find", parent, "-name", ".~lock*", "-type", "f", "-delete") - result := shared.RunShellCommand(cmd) - if result.ExitCode != 0 { - slog.Warn("could not remove lock files", "path", parent, "stderr", result.Stderr, "exitCode", result.ExitCode) - } - - fh.runningProgram = exec.Command("soffice", "--show", path, "--nologo", "--norestore", fmt.Sprintf("-env:UserInstallation=file://%s", tempDirPath)) - case "application/pdf": - fh.runningProgram = exec.Command("xreader", path, "--presentation") - default: - return fmt.Errorf("unsupported file type: %s", mType.String()) - } - - fh.runningProgram.SysProcAttr = &syscall.SysProcAttr{Setpgid: true} - - result := shared.RunShellCommandNonBlocking(fh.runningProgram) - if result.ExitCode != 0 { - return fmt.Errorf("could not open pdf: %s (%d)", result.Stderr, result.ExitCode) - } - - return nil -} - -func (fh *fileHandler) CloseRunningProgram() error { - if fh.runningProgram == nil { - return nil - } - err := syscall.Kill(-fh.runningProgram.Process.Pid, syscall.SIGTERM) - fh.runningProgram = nil - return err -} diff --git a/display/pkg/main.go b/display/pkg/main.go index 3e01841..70faaa5 100644 --- a/display/pkg/main.go +++ b/display/pkg/main.go @@ -1,49 +1,21 @@ package pkg import ( + "bytes" + "context" "errors" "fmt" - "net" + "log/slog" "os" "os/exec" "path/filepath" "strings" "time" + "plg-mudics/display/browser" "plg-mudics/shared" ) -func GetDeviceIp() (string, error) { - addrs, err := net.InterfaceAddrs() - if err != nil { - return "", fmt.Errorf("failed to get network interfaces: %w", err) - } - for _, addr := range addrs { - ipNet, ok := addr.(*net.IPNet) - if ok && !ipNet.IP.IsLoopback() && ipNet.IP.To4() != nil { - return ipNet.IP.String(), nil - } - } - - return "", fmt.Errorf("no suitable IP address found") -} - -func GetDeviceMac() (string, error) { - interfaces, err := net.Interfaces() - if err != nil { - return "", fmt.Errorf("failed to get network interfaces: %w", err) - } - - for _, interf := range interfaces { - mac := interf.HardwareAddr.String() - if mac != "" { - return mac, nil - } - } - - return "", fmt.Errorf("no suitable MAC address found") -} - func TakeScreenshot() (string, error) { tempFilePath := filepath.Join(os.TempDir(), fmt.Sprintf("screenshot_%d.png", time.Now().Unix())) @@ -106,3 +78,20 @@ func ResolveStorageFilePath(pathParam string) (string, bool, error) { return fullPath, true, nil } + +func ShowHTML(html string) error { + ResetView() + + var templateBuffer bytes.Buffer + htmlTemplate(html).Render(context.Background(), &templateBuffer) + err := browser.Browser.OpenHTML(templateBuffer.String()) + + return err +} + +func ResetView() { + err := fileHandler.closeRunningProgram() + if err != nil { + slog.Error("Failed to close running program", "error", err) + } +} diff --git a/display/pkg/main.templ b/display/pkg/main.templ new file mode 100644 index 0000000..9c54103 --- /dev/null +++ b/display/pkg/main.templ @@ -0,0 +1,148 @@ +package pkg + +templ basicTemplate() { + + + + + + PLG MuDiCS Display + + + + { children... } + + +} + +templ videoTemplate(path string) { + @basicTemplate() { + + } +} + +templ htmlTemplate(html string) { + @basicTemplate() { + @templ.Raw(html) + } +} + +templ imageTemplate(path string) { + @basicTemplate() { + + } +} + +templ deviceInfoTemplate(ip string, mac string, showQR bool) { + @basicTemplate() { +
+
+ { ip } + { mac } +
+ if showQR { +
+
+ QR-Code +
+
+ } +
+ + } +} + +templ startScreenTemplate(splashScreenHtml string, ip string, mac string, qrPath string) { + @basicTemplate() { +
+
+ { ip } + { mac } +
+ if qrPath != "" { +
+
+ QR-Code +
+
+ } +
+ @templ.Raw(splashScreenHtml) + + } +} diff --git a/display/pkg/open_file.go b/display/pkg/open_file.go new file mode 100644 index 0000000..5448d47 --- /dev/null +++ b/display/pkg/open_file.go @@ -0,0 +1,108 @@ +package pkg + +import ( + "bytes" + "context" + "fmt" + "log/slog" + "os" + "os/exec" + "path/filepath" + "plg-mudics/shared" + "syscall" + + "github.com/gabriel-vasile/mimetype" + + "plg-mudics/display/browser" +) + +var fileHandler fileHandlerType = fileHandlerType{} + +type fileHandlerType struct { + runningProgram *exec.Cmd +} + +func OpenFile(path string) error { + ResetView() + + mType, err := mimetype.DetectFile(path) + if err != nil { + slog.Error("Failed to detect mime type", "file", path, "error", err) + } + + switch mType.String() { + case "video/mp4": + var templateBuffer bytes.Buffer + videoTemplate(path).Render(context.Background(), &templateBuffer) + browser.Browser.OpenHTML(templateBuffer.String()) + case "image/jpeg", "image/png", "image/gif": + var templateBuffer bytes.Buffer + imageTemplate(path).Render(context.Background(), &templateBuffer) + browser.Browser.OpenHTML(templateBuffer.String()) + case "application/pdf": + browser.Browser.OpenPDF(path) + case "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation": + err = fileHandler.openFileWithApp(path) + default: + return fmt.Errorf("unsupported file type: %s", mType.String()) + } + + return nil +} + +func (fh *fileHandlerType) openFileWithApp(path string) error { + var err error + + mType, err := mimetype.DetectFile(path) + if err != nil { + return fmt.Errorf("failed to detect mime type: %w", err) + } + + switch mType.String() { + case "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation": + err = fh.openLibreoffice(path) + if err != nil { + return err + } + default: + return fmt.Errorf("unsupported file type: %s", mType.String()) + } + + fh.runningProgram.SysProcAttr = &syscall.SysProcAttr{Setpgid: true} + + result := shared.RunShellCommandNonBlocking(fh.runningProgram) + if result.ExitCode != 0 { + return fmt.Errorf("could not open pdf: %s (%d)", result.Stderr, result.ExitCode) + } + + return nil +} + +func (fh *fileHandlerType) openLibreoffice(path string) error { + // yes, we need this weird workaround to delete lock files since libreoffice + // doesn't expose an option to ignore them or prevent their creation + // the --view argument for some reason doesn't work with --show + parent := filepath.Dir(path) + cmd := exec.Command("find", parent, "-name", ".~lock*", "-type", "f", "-delete") + result := shared.RunShellCommand(cmd) + if result.ExitCode != 0 { + slog.Warn("could not remove lock files", "path", parent, "stderr", result.Stderr, "exitCode", result.ExitCode) + } + + tempDirPath, err := os.MkdirTemp("", "plg-mudics-program-profile-") + if err != nil { + return fmt.Errorf("failed to create temporary profile directory: %w", err) + } + fh.runningProgram = exec.Command("soffice", "--show", path, "--nologo", "--norestore", fmt.Sprintf("-env:UserInstallation=file://%s", tempDirPath)) + + return nil +} + +func (fh *fileHandlerType) closeRunningProgram() error { + if fh.runningProgram == nil { + return nil + } + err := syscall.Kill(-fh.runningProgram.Process.Pid, syscall.SIGTERM) + fh.runningProgram = nil + return err +} diff --git a/display/pkg/start_screen.go b/display/pkg/start_screen.go new file mode 100644 index 0000000..dfc3514 --- /dev/null +++ b/display/pkg/start_screen.go @@ -0,0 +1,117 @@ +package pkg + +import ( + "bytes" + "context" + "fmt" + "image/color" + "log/slog" + "net" + "os" + "plg-mudics/shared" + "strings" + + "plg-mudics/display/browser" + + "github.com/skip2/go-qrcode" +) + +func OpenStartScreen() { + var err error + + raw := shared.RawSplashScreenTemplate + html := strings.ReplaceAll(raw, "%%APP-VERSION%%", shared.Version) + + ip, err := getDeviceIp() + if err != nil { + slog.Error("Failed to get device IP", "error", err) + } + mac, err := getDeviceMac() + if err != nil { + slog.Error("Failed to get device MAC address", "error", err) + } + + port := 8080 + showQrCode := !isPortFree(port) + qrCodePath := "" + if showQrCode { + qrCodePath, err = generateQRCode(fmt.Sprintf("http://%s:%d", ip, port)) + if err != nil { + slog.Error("could not generate qr code", "error", err) + } + } + + var templateBuffer bytes.Buffer + startScreenTemplate(html, ip, mac, qrCodePath).Render(context.Background(), &templateBuffer) + browser.Browser.OpenHTML(templateBuffer.String()) +} + +func getDeviceIp() (string, error) { + addrs, err := net.InterfaceAddrs() + if err != nil { + return "", fmt.Errorf("failed to get network interfaces: %w", err) + } + for _, addr := range addrs { + ipNet, ok := addr.(*net.IPNet) + if ok && !ipNet.IP.IsLoopback() && ipNet.IP.To4() != nil { + return ipNet.IP.String(), nil + } + } + + return "", fmt.Errorf("no suitable IP address found") +} + +func isPortFree(port int) bool { + addr := fmt.Sprintf("127.0.0.1:%d", port) + l, err := net.Listen("tcp", addr) + if err != nil { + return false + } + _ = l.Close() + return true +} + +func getDeviceMac() (string, error) { + interfaces, err := net.Interfaces() + if err != nil { + return "", fmt.Errorf("failed to get network interfaces: %w", err) + } + + for _, interf := range interfaces { + mac := interf.HardwareAddr.String() + if mac != "" { + return mac, nil + } + } + + return "", fmt.Errorf("no suitable MAC address found") +} + +func generateQRCode(data string) (string, error) { + qr, err := qrcode.New(data, qrcode.Medium) + if err != nil { + return "", fmt.Errorf("could not generate qr code: %w", err) + } + + qr.DisableBorder = true + qr.ForegroundColor = color.RGBA{R: 0x1c, G: 0x19, B: 0x17, A: 0xff} + qr.BackgroundColor = color.RGBA{R: 0xe7, G: 0xe5, B: 0xe4, A: 0xff} + + png, err := qr.PNG(-1) + if err != nil { + return "", fmt.Errorf("could not render qr code: %w", err) + } + + file, err := os.CreateTemp("", "mudics-qr-code-*.png") + if err != nil { + return "", fmt.Errorf("could not save qr code: %w", err) + } + defer file.Close() + + _, err = file.Write(png) + if err != nil { + return "", fmt.Errorf("could not write qr code to file: %w", err) + } + + return file.Name(), nil +} diff --git a/display/requests/openWebsite.bru b/display/requests/openWebsite.bru new file mode 100644 index 0000000..1ea05fd --- /dev/null +++ b/display/requests/openWebsite.bru @@ -0,0 +1,22 @@ +meta { + name: openWebsite + type: http + seq: 10 +} + +patch { + url: 127.0.0.1:1323/api/openWebsite + body: json + auth: inherit +} + +body:json { + { + "url": "https://example.com" + } +} + +settings { + encodeUrl: true + timeout: 0 +} diff --git a/display/web/embed.go b/display/web/embed.go deleted file mode 100644 index 2a15322..0000000 --- a/display/web/embed.go +++ /dev/null @@ -1,12 +0,0 @@ -package web - -import ( - "embed" - "io/fs" -) - -//go:embed all:static -var staticDir embed.FS - -// BuildDirFS contains the embedded dist directory files (without the "build" prefix) -var StaticDirFS, _ = fs.Sub(staticDir, "static") diff --git a/display/web/main.go b/display/web/main.go index e976847..68c493e 100644 --- a/display/web/main.go +++ b/display/web/main.go @@ -1,53 +1,27 @@ package web import ( - "bytes" - "context" "errors" "fmt" - "image/color" "io" "log/slog" - "net" "net/http" "net/url" "os" "os/exec" "path/filepath" shared "plg-mudics/shared" - "strings" - "github.com/gabriel-vasile/mimetype" "github.com/labstack/echo/v4" "github.com/labstack/echo/v4/middleware" - "github.com/skip2/go-qrcode" + "plg-mudics/display/browser" "plg-mudics/display/pkg" ) -var version string -var sseConnection chan string - -func StartWebServer(v string, port string) { - version = v - +func StartWebServer(port string) { e := echo.New() - e.GET("/", indexRoute) - e.GET("/sse", sseRoute) - e.GET("/splash", func(ctx echo.Context) error { - html := shared.SplashScreenTemplate - html = strings.ReplaceAll(html, "%%APP-VERSION%%", version) - return ctx.HTML(http.StatusOK, html) - }) - e.GET("/qr", qrRoute) - - staticGroup := e.Group("/static") - staticGroup.Use(middleware.StaticWithConfig(middleware.StaticConfig{ - Filesystem: http.FS(StaticDirFS), - HTML5: true, - })) - apiGroup := e.Group("/api") apiGroup.Use(middleware.CORS()) apiGroup.GET("/ping", pingRoute) @@ -55,6 +29,7 @@ func StartWebServer(v string, port string) { apiGroup.PATCH("/keyboardInput", keyboardInputRoute) apiGroup.PATCH("/showHTML", showHTMLRoute) apiGroup.PATCH("/takeScreenshot", takeScreenshotRoute) + apiGroup.PATCH("/openWebsite", openWebsiteRoute) fileGroup := apiGroup.Group("/file") fileGroup.Use(extractFilePathMiddleware) @@ -69,85 +44,6 @@ func StartWebServer(v string, port string) { } } -func indexRoute(ctx echo.Context) error { - return indexTemplate().Render(ctx.Request().Context(), ctx.Response().Writer) -} - -func sseRoute(ctx echo.Context) error { - slog.Info("SSE client connected") - - w := ctx.Response() - w.Header().Set("Content-Type", "text/event-stream") - w.Header().Set("Cache-Control", "no-cache") - w.Header().Set("Connection", "keep-alive") - w.WriteHeader(http.StatusOK) - flusher, _ := w.Writer.(http.Flusher) - - sseConnection = make(chan string) - - // init display - ip, err := pkg.GetDeviceIp() - if err != nil { - slog.Error("Failed to get device IP address", "error", err) - } - mac, err := pkg.GetDeviceMac() - if err != nil { - slog.Error("Failed to get device MAC address", "error", err) - } - showQR := !isPortFree(8080) - var status bytes.Buffer - deviceInfoTemplate(ip, mac, showQR).Render(context.Background(), &status) - connectedEvent := Event{ - Data: status.Bytes(), - } - connectedEvent.MarshalTo(w) - flusher.Flush() - - for { - select { - case <-ctx.Request().Context().Done(): - slog.Info("SSE client disconnected") - sseConnection = nil - return nil - - case event := <-sseConnection: - rawEvent := Event{ - Event: []byte(""), - Data: []byte(event), - } - - if err := rawEvent.MarshalTo(w); err != nil { - slog.Warn("Error writing to client", "error", err) - return err - } - flusher.Flush() - } - } -} - -func qrRoute(c echo.Context) error { - data := c.QueryParam("data") - if data == "" { - return c.String(http.StatusBadRequest, "missing data") - } - - qr, err := qrcode.New(data, qrcode.Medium) - if err != nil { - return c.String(http.StatusInternalServerError, "could not generate qr") - } - - qr.DisableBorder = true - qr.ForegroundColor = color.RGBA{R: 0x1c, G: 0x19, B: 0x17, A: 0xff} - qr.BackgroundColor = color.RGBA{R: 0xe7, G: 0xe5, B: 0xe4, A: 0xff} - - png, err := qr.PNG(-1) - if err != nil { - return c.String(http.StatusInternalServerError, "could not encode png") - } - - return c.Blob(http.StatusOK, "image/png", png) -} - func extractFilePathMiddleware(next echo.HandlerFunc) echo.HandlerFunc { return func(ctx echo.Context) error { raw := ctx.Param("path") @@ -308,38 +204,7 @@ func openFileRoute(ctx echo.Context) error { return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"}) } - if sseConnection == nil { - return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Cant connect to display browser client"}) - } - - err = resetView() - if err != nil { - slog.Error("Failed to reset view", "error", err) - } - - mType, err := mimetype.DetectFile(fullPath) - if err != nil { - slog.Error("Failed to detect mime type", "file", pathParam, "error", err) - return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to detect file type"}) - } - - switch mType.String() { - case "video/mp4": - var templateBuffer bytes.Buffer - videoTemplate(pathParam).Render(context.Background(), &templateBuffer) - - sseConnection <- templateBuffer.String() - case "image/jpeg", "image/png", "image/gif": - var templateBuffer bytes.Buffer - imageTemplate(pathParam).Render(context.Background(), &templateBuffer) - sseConnection <- templateBuffer.String() - case "application/pdf", "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation": - err = pkg.FileHandler.OpenFile(fullPath) - default: - slog.Info("Unsupported file type", "type", mType) - return ctx.JSON(http.StatusUnsupportedMediaType, shared.ErrorResponse{Description: "Unsupported file type: " + mType.String()}) - } - + err = pkg.OpenFile(fullPath) if err != nil { slog.Error("Failed to open file", "file", pathParam, "error", err) return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open file"}) @@ -358,13 +223,12 @@ func showHTMLRoute(ctx echo.Context) error { return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription}) } - err := resetView() + err := pkg.ShowHTML(request.HTML) if err != nil { - slog.Error("Failed to reset view", "error", err) + slog.Error("Failed to open html", "error", err) + return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open html"}) } - sseConnection <- request.HTML - slog.Info("HTML content sent to client") return ctx.JSON(http.StatusOK, struct{}{}) } @@ -372,7 +236,7 @@ func showHTMLRoute(ctx echo.Context) error { func pingRoute(ctx echo.Context) error { return ctx.JSON(http.StatusOK, struct { Version string `json:"version"` - }{Version: version}) + }{Version: shared.Version}) } func takeScreenshotRoute(ctx echo.Context) error { @@ -415,24 +279,18 @@ func previewRoute(ctx echo.Context) error { return ctx.File(outputFilePath) } -// Reset previous file views so they dont collide with the new one -func resetView() error { - err := pkg.FileHandler.CloseRunningProgram() - if err != nil { - return fmt.Errorf("failed to close running program: %w", err) +func openWebsiteRoute(ctx echo.Context) error { + var request struct { + URL string `json:"url"` + } + if err := ctx.Bind(&request); err != nil { + slog.Error("Failed to parse website input", "error", err) + return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription}) } - sseConnection <- "" + slog.Info("Opening url") - return nil -} + browser.Browser.OpenPage(request.URL) -func isPortFree(port int) bool { - addr := fmt.Sprintf("127.0.0.1:%d", port) - l, err := net.Listen("tcp", addr) - if err != nil { - return false - } - _ = l.Close() - return true + return ctx.JSON(http.StatusOK, struct{}{}) } diff --git a/display/web/main.templ b/display/web/main.templ deleted file mode 100644 index fec26df..0000000 --- a/display/web/main.templ +++ /dev/null @@ -1,123 +0,0 @@ -package web - -templ indexTemplate() { - - - - - - PLG MuDiCS Display - - - - - - -
-
- - -} - -templ videoTemplate(path string) { - -} - -templ imageTemplate(path string) { - -} - -templ deviceInfoTemplate(ip string, mac string, showQR bool) { -
-
- { ip } - { mac } -
- if showQR { -
-
- QR-Code -
-
- } -
- -} diff --git a/display/web/sse.go b/display/web/sse.go deleted file mode 100644 index ca393a2..0000000 --- a/display/web/sse.go +++ /dev/null @@ -1,75 +0,0 @@ -package web - -import ( - "bytes" - "fmt" - "io" -) - -// Event represents Server-Sent Event. -// SSE explanation: https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#event_stream_format -type Event struct { - // ID is used to set the EventSource object's last event ID value. - ID []byte - // Data field is for the message. When the EventSource receives multiple consecutive lines - // that begin with data:, it concatenates them, inserting a newline character between each one. - // Trailing newlines are removed. - Data []byte - // Event is a string identifying the type of event described. If this is specified, an event - // will be dispatched on the browser to the listener for the specified event name; the website - // source code should use addEventListener() to listen for named events. The onmessage handler - // is called if no event name is specified for a message. - Event []byte - // Retry is the reconnection time. If the connection to the server is lost, the browser will - // wait for the specified time before attempting to reconnect. This must be an integer, specifying - // the reconnection time in milliseconds. If a non-integer value is specified, the field is ignored. - Retry []byte - // Comment line can be used to prevent connections from timing out; a server can send a comment - // periodically to keep the connection alive. - Comment []byte -} - -// MarshalTo marshals Event to given Writer -func (ev *Event) MarshalTo(w io.Writer) error { - // Marshalling part is taken from: https://github.com/r3labs/sse/blob/c6d5381ee3ca63828b321c16baa008fd6c0b4564/http.go#L16 - if len(ev.Data) == 0 && len(ev.Comment) == 0 { - return nil - } - - if len(ev.Data) > 0 { - if _, err := fmt.Fprintf(w, "id: %s\n", ev.ID); err != nil { - return err - } - - sd := bytes.Split(ev.Data, []byte("\n")) - for i := range sd { - if _, err := fmt.Fprintf(w, "data: %s\n", sd[i]); err != nil { - return err - } - } - - if len(ev.Event) > 0 { - if _, err := fmt.Fprintf(w, "event: %s\n", ev.Event); err != nil { - return err - } - } - - if len(ev.Retry) > 0 { - if _, err := fmt.Fprintf(w, "retry: %s\n", ev.Retry); err != nil { - return err - } - } - } - - if len(ev.Comment) > 0 { - if _, err := fmt.Fprintf(w, ": %s\n", ev.Comment); err != nil { - return err - } - } - - if _, err := fmt.Fprint(w, "\n"); err != nil { - return err - } - - return nil -} diff --git a/display/web/static/htmx-ext-sse.min.js b/display/web/static/htmx-ext-sse.min.js deleted file mode 100644 index 4528733..0000000 --- a/display/web/static/htmx-ext-sse.min.js +++ /dev/null @@ -1 +0,0 @@ -(function(){var g;htmx.defineExtension("sse",{init:function(e){g=e;if(htmx.createEventSource==undefined){htmx.createEventSource=t}},getSelectors:function(){return["[sse-connect]","[data-sse-connect]","[sse-swap]","[data-sse-swap]"]},onEvent:function(e,t){var r=t.target||t.detail.elt;switch(e){case"htmx:beforeCleanupElement":var n=g.getInternalData(r);var s=n.sseEventSource;if(s){g.triggerEvent(r,"htmx:sseClose",{source:s,type:"nodeReplaced"});n.sseEventSource.close()}return;case"htmx:afterProcessNode":i(r)}}});function t(e){return new 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github.com/rs/cors v1.11.0/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU= github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U= github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= diff --git a/nixos/configuration.nix b/nixos/configuration.nix index d4199ee..f77c086 100644 --- a/nixos/configuration.nix +++ b/nixos/configuration.nix @@ -92,7 +92,6 @@ nushell unzip iputils - xreader tree jq diff --git a/shared/embed.go b/shared/embed.go index f569902..7128d9a 100644 --- a/shared/embed.go +++ b/shared/embed.go @@ -6,7 +6,7 @@ import ( ) //go:embed splash_screen.html -var SplashScreenTemplate string +var RawSplashScreenTemplate string //go:embed version.txt var versionNotTrimmed string