package headscale import ( "bytes" _ "embed" "html/template" "net/http" textTemplate "text/template" "github.com/gofrs/uuid/v5" "github.com/gorilla/mux" "github.com/rs/zerolog/log" ) //go:embed templates/apple.html var appleTemplate string //go:embed templates/windows.html var windowsTemplate string // WindowsConfigMessage shows a simple message in the browser for how to configure the Windows Tailscale client. func (h *Headscale) WindowsConfigMessage( writer http.ResponseWriter, req *http.Request, ) { winTemplate := template.Must(template.New("windows").Parse(windowsTemplate)) config := map[string]interface{}{ "URL": h.cfg.ServerURL, } var payload bytes.Buffer if err := winTemplate.Execute(&payload, config); err != nil { log.Error(). Str("handler", "WindowsRegConfig"). Err(err). Msg("Could not render Windows index template") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Could not render Windows index template")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } writer.Header().Set("Content-Type", "text/html; charset=utf-8") writer.WriteHeader(http.StatusOK) _, err := writer.Write(payload.Bytes()) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } } // WindowsRegConfig generates and serves a .reg file configured with the Headscale server address. func (h *Headscale) WindowsRegConfig( writer http.ResponseWriter, req *http.Request, ) { config := WindowsRegistryConfig{ URL: h.cfg.ServerURL, } var content bytes.Buffer if err := windowsRegTemplate.Execute(&content, config); err != nil { log.Error(). Str("handler", "WindowsRegConfig"). Err(err). Msg("Could not render Apple macOS template") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Could not render Windows registry template")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } writer.Header().Set("Content-Type", "text/x-ms-regedit; charset=utf-8") writer.WriteHeader(http.StatusOK) _, err := writer.Write(content.Bytes()) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } } // AppleConfigMessage shows a simple message in the browser to point the user to the iOS/MacOS profile and instructions for how to install it. func (h *Headscale) AppleConfigMessage( writer http.ResponseWriter, req *http.Request, ) { appleTemplate := template.Must(template.New("apple").Parse(appleTemplate)) config := map[string]interface{}{ "URL": h.cfg.ServerURL, } var payload bytes.Buffer if err := appleTemplate.Execute(&payload, config); err != nil { log.Error(). Str("handler", "AppleMobileConfig"). Err(err). Msg("Could not render Apple index template") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Could not render Apple index template")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } writer.Header().Set("Content-Type", "text/html; charset=utf-8") writer.WriteHeader(http.StatusOK) _, err := writer.Write(payload.Bytes()) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } } func (h *Headscale) ApplePlatformConfig( writer http.ResponseWriter, req *http.Request, ) { vars := mux.Vars(req) platform, ok := vars["platform"] if !ok { log.Error(). Str("handler", "ApplePlatformConfig"). Msg("No platform specified") http.Error(writer, "No platform specified", http.StatusBadRequest) return } id, err := uuid.NewV4() if err != nil { log.Error(). Str("handler", "ApplePlatformConfig"). Err(err). Msg("Failed not create UUID") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Failed to create UUID")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } contentID, err := uuid.NewV4() if err != nil { log.Error(). Str("handler", "ApplePlatformConfig"). Err(err). Msg("Failed not create UUID") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Failed to create content UUID")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } platformConfig := AppleMobilePlatformConfig{ UUID: contentID, URL: h.cfg.ServerURL, } var payload bytes.Buffer handleMacError := func(ierr error) { log.Error(). Str("handler", "ApplePlatformConfig"). Err(ierr). Msg("Could not render Apple macOS template") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Could not render Apple macOS template")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } } switch platform { case "macos-standalone": if err := macosStandaloneTemplate.Execute(&payload, platformConfig); err != nil { handleMacError(err) return } case "macos-app-store": if err := macosAppStoreTemplate.Execute(&payload, platformConfig); err != nil { handleMacError(err) return } case "ios": if err := iosTemplate.Execute(&payload, platformConfig); err != nil { log.Error(). Str("handler", "ApplePlatformConfig"). Err(err). Msg("Could not render Apple iOS template") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Could not render Apple iOS template")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } default: writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusBadRequest) _, err := writer.Write( []byte("Invalid platform. Only ios, macos-app-store and macos-standalone are supported"), ) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } config := AppleMobileConfig{ UUID: id, URL: h.cfg.ServerURL, Payload: payload.String(), } var content bytes.Buffer if err := commonTemplate.Execute(&content, config); err != nil { log.Error(). Str("handler", "ApplePlatformConfig"). Err(err). Msg("Could not render Apple platform template") writer.Header().Set("Content-Type", "text/plain; charset=utf-8") writer.WriteHeader(http.StatusInternalServerError) _, err := writer.Write([]byte("Could not render Apple platform template")) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } return } writer.Header(). Set("Content-Type", "application/x-apple-aspen-config; charset=utf-8") writer.WriteHeader(http.StatusOK) _, err = writer.Write(content.Bytes()) if err != nil { log.Error(). Caller(). Err(err). Msg("Failed to write response") } } type WindowsRegistryConfig struct { URL string } type AppleMobileConfig struct { UUID uuid.UUID URL string Payload string } type AppleMobilePlatformConfig struct { UUID uuid.UUID URL string } var windowsRegTemplate = textTemplate.Must( textTemplate.New("windowsconfig").Parse(`Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Tailscale IPN] "UnattendedMode"="always" "LoginURL"="{{.URL}}" `)) var commonTemplate = textTemplate.Must( textTemplate.New("mobileconfig").Parse(` PayloadUUID {{.UUID}} PayloadDisplayName Headscale PayloadDescription Configure Tailscale login server to: {{.URL}} PayloadIdentifier com.github.juanfont.headscale PayloadRemovalDisallowed PayloadType Configuration PayloadVersion 1 PayloadContent {{.Payload}} `), ) var iosTemplate = textTemplate.Must(textTemplate.New("iosTemplate").Parse(` PayloadType io.tailscale.ipn.ios PayloadUUID {{.UUID}} PayloadIdentifier com.github.juanfont.headscale PayloadVersion 1 PayloadEnabled ControlURL {{.URL}} `)) var macosAppStoreTemplate = template.Must(template.New("macosTemplate").Parse(` PayloadType io.tailscale.ipn.macos PayloadUUID {{.UUID}} PayloadIdentifier com.github.juanfont.headscale PayloadVersion 1 PayloadEnabled ControlURL {{.URL}} `)) var macosStandaloneTemplate = template.Must(template.New("macosStandaloneTemplate").Parse(` PayloadType io.tailscale.ipn.macsys PayloadUUID {{.UUID}} PayloadIdentifier com.github.juanfont.headscale PayloadVersion 1 PayloadEnabled ControlURL {{.URL}} `))