C-bindings for the Go Cwtch Library https://cwtch.im
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package utils
import (
const (
CwtchStarted = event.Type("CwtchStarted")
CwtchStartError = event.Type("CwtchStartError")
UpdateGlobalSettings = event.Type("UpdateGlobalSettings")
var GlobalSettingsFile v1.FileStore
var lock sync.Mutex
const GlobalSettingsFilename = "ui.globals"
const saltFile = "SALT"
type GlobalSettings struct {
Locale string
Theme string
PreviousPid int64
ExperimentsEnabled bool
Experiments map[string]bool
BlockUnknownConnections bool
StreamerMode bool
StateRootPane int
FirstTime bool
UIColumnModePortrait string
UIColumnModeLandscape string
var DefaultGlobalSettings = GlobalSettings{
Locale: "en",
Theme: "dark",
PreviousPid: -1,
ExperimentsEnabled: false,
Experiments: make(map[string]bool),
StateRootPane: 0,
FirstTime: true,
BlockUnknownConnections: false,
StreamerMode: false,
UIColumnModePortrait: "DualpaneMode.Single",
UIColumnModeLandscape: "DualpaneMode.CopyPortrait",
func InitGlobalSettingsFile(directory string, password string) error {
defer lock.Unlock()
var key [32]byte
salt, err := ioutil.ReadFile(path.Join(directory, saltFile))
if err != nil {
log.Infof("Could not find salt file: %v (creating a new settings file)", err)
var newSalt [128]byte
key, newSalt, err = v1.CreateKeySalt(password)
if err != nil {
log.Errorf("Could not initialize salt: %v", err)
return err
os.Mkdir(directory, 0700)
err := ioutil.WriteFile(path.Join(directory, saltFile), newSalt[:], 0600)
if err != nil {
log.Errorf("Could not write salt file: %v", err)
return err
} else {
key = v1.CreateKey(password, salt)
GlobalSettingsFile = v1.NewFileStore(directory, GlobalSettingsFilename, key)
log.Infof("initialized global settings file: %v", GlobalSettingsFile)
return nil
func ReadGlobalSettings() *GlobalSettings {
defer lock.Unlock()
settings := DefaultGlobalSettings
if GlobalSettingsFile == nil {
log.Errorf("Global Settings File was not Initialized Properly")
return &settings
settingsBytes, err := GlobalSettingsFile.Read()
if err != nil {
log.Infof("Could not read global ui settings: %v (assuming this is a first time app deployment...)", err)
return &settings //firstTime = true
err = json.Unmarshal(settingsBytes, &settings)
if err != nil {
log.Errorf("Could not parse global ui settings: %v\n", err)
// TODO if settings is corrupted, we probably want to alert the UI.
return &settings //firstTime = true
log.Debugf("Settings: %#v", settings)
return &settings
func WriteGlobalSettings(globalSettings GlobalSettings) {
defer lock.Unlock()
bytes, _ := json.Marshal(globalSettings)
// override first time setting
globalSettings.FirstTime = true
err := GlobalSettingsFile.Write(bytes)
if err != nil {
log.Errorf("Could not write global ui settings: %v\n", err)