public async Task HandleDnsCrypt(string filter)
{
try
{
IsWorking = true;
if (filter.Equals(Global.DefaultCustomFilterKey))
{
if (_isCustomFilterEnabled)
{
//disable
if (RemoveStaticStamps())
{
if (DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
await Task.Run(() => { DnsCryptProxyManager.Stop(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceStopTime).ConfigureAwait(false);
}
if (DnsCryptProxyManager.IsDnsCryptProxyInstalled())
{
await Task.Run(() => { DnsCryptProxyManager.Uninstall(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceUninstallTime).ConfigureAwait(false);
}
HandleNetworkInterfaces(false);
//remove stamp from config
var stampIndex = _appConfiguration.Proxies.FindIndex(p => p.Name.Equals(filter));
if (stampIndex != -1)
{
_appConfiguration.Proxies.RemoveAt(stampIndex);
_appConfigurationService.Configuration = _appConfiguration;
}
}
IsCustomFilterEnabled = false;
IsAdultFilterEnabled = false;
IsFamilyFilterEnabled = false;
}
else
{
//enable
if (SetStaticStamp(filter))
{
if (!DnsCryptProxyManager.IsDnsCryptProxyInstalled())
{
await Task.Run(() => { DnsCryptProxyManager.Install(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceInstallTime).ConfigureAwait(false);
}
if (DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
await Task.Run(() => { DnsCryptProxyManager.Restart(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceRestartTime).ConfigureAwait(false);
}
else
{
await Task.Run(() => { DnsCryptProxyManager.Start(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceStartTime).ConfigureAwait(false);
}
HandleNetworkInterfaces(true);
IsCustomFilterEnabled = true;
IsAdultFilterEnabled = false;
IsFamilyFilterEnabled = false;
}
}
}
else if (filter.Equals(Global.DefaultAdultFilterKey))
{
if (_isAdultFilterEnabled)
{
//disable
if (RemoveStaticStamps())
{
if (DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
await Task.Run(() => { DnsCryptProxyManager.Stop(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceStopTime).ConfigureAwait(false);
}
if (DnsCryptProxyManager.IsDnsCryptProxyInstalled())
{
await Task.Run(() => { DnsCryptProxyManager.Uninstall(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceUninstallTime).ConfigureAwait(false);
}
HandleNetworkInterfaces(false);
}
IsCustomFilterEnabled = false;
IsAdultFilterEnabled = false;
IsFamilyFilterEnabled = false;
}
else
{
//enable
if (SetStaticStamp(filter))
{
if (!DnsCryptProxyManager.IsDnsCryptProxyInstalled())
{
await Task.Run(() => { DnsCryptProxyManager.Install(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceInstallTime).ConfigureAwait(false);
}
if (DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
await Task.Run(() => { DnsCryptProxyManager.Restart(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceRestartTime).ConfigureAwait(false);
}
else
{
await Task.Run(() => { DnsCryptProxyManager.Start(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceStartTime).ConfigureAwait(false);
}
HandleNetworkInterfaces(true);
IsAdultFilterEnabled = true;
IsCustomFilterEnabled = false;
IsFamilyFilterEnabled = false;
}
}
}
else if (filter.Equals(Global.DefaultFamilyFilterKey))
{
if (_isFamilyFilterEnabled)
{
//disable
if (RemoveStaticStamps())
{
if (DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
await Task.Run(() => { DnsCryptProxyManager.Stop(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceStopTime).ConfigureAwait(false);
}
if (DnsCryptProxyManager.IsDnsCryptProxyInstalled())
{
await Task.Run(() => { DnsCryptProxyManager.Uninstall(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceUninstallTime).ConfigureAwait(false);
}
HandleNetworkInterfaces(false);
}
IsCustomFilterEnabled = false;
IsFamilyFilterEnabled = false;
IsAdultFilterEnabled = false;
}
else
{
//enable
if (SetStaticStamp(filter))
{
if (!DnsCryptProxyManager.IsDnsCryptProxyInstalled())
{
await Task.Run(() => { DnsCryptProxyManager.Install(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceInstallTime).ConfigureAwait(false);
}
if (DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
await Task.Run(() => { DnsCryptProxyManager.Restart(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceRestartTime).ConfigureAwait(false);
}
else
{
await Task.Run(() => { DnsCryptProxyManager.Start(); }).ConfigureAwait(false);
await Task.Delay(Global.ServiceStartTime).ConfigureAwait(false);
}
HandleNetworkInterfaces(true);
IsFamilyFilterEnabled = true;
IsCustomFilterEnabled = false;
IsAdultFilterEnabled = false;
}
}
}
}
catch (Exception exception)
{
_logger.Log($"HandleDnsCrypt {exception.Message}", Category.Exception, Priority.High);
}
finally
{
IsWorking = false;
}
}
public MainWindowViewModel(
ILoggerFacade logger,
IRegionManager regionManager,
IEventAggregator eventAggregator,
ISnackbarMessageQueue snackbarMessageQueue,
IAppConfigurationService appConfigurationService)
{
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_eventAggregator = eventAggregator ?? throw new ArgumentNullException(nameof(eventAggregator));
_regionManager = regionManager ?? throw new ArgumentNullException(nameof(regionManager));
_messageQueue = snackbarMessageQueue ?? throw new ArgumentNullException(nameof(snackbarMessageQueue));
_appConfigurationService = appConfigurationService ?? throw new ArgumentNullException(nameof(appConfigurationService));
try
{
_appConfiguration = _appConfigurationService.Configuration;
_eventAggregator.GetEvent <StampAddedEvent>().Subscribe(CustomStampAdded);
NavigateToAboutViewCommand = new DelegateCommand(NavigateToAboutView);
NavigateToStampViewCommand = new DelegateCommand(NavigateToStampView);
NavigateToSettingsViewCommand = new DelegateCommand(NavigateToSettingsView);
OpenWebCommand = new DelegateCommand <string>(OpenUrl);
CheckForUpdatesCommand = new DelegateCommand(CheckForUpdates);
HandleCustomFilter = new DelegateCommand(HandleCustomStamp);
HandleFamilyFilter = new DelegateCommand(async() => await HandleDnsCrypt(Global.DefaultFamilyFilterKey));
HandleAdultFilter = new DelegateCommand(async() => await HandleDnsCrypt(Global.DefaultAdultFilterKey));
IsWorking = true;
IsCustomFilterEnabled = false;
IsFamilyFilterEnabled = false;
IsAdultFilterEnabled = false;
var year = Global.CopyrightYear.ToString();
if (DateTime.UtcNow.Year != Global.CopyrightYear)
{
year = $"{Global.CopyrightYear} - {DateTime.UtcNow.Year}";
}
Footer = $"Copyright © {year} {Global.CompanyName}. {VersionHelper.PublishVersion} {VersionHelper.PublishBuild}";
((App)Application.Current).LoggingLevelSwitch.MinimumLevel = (Serilog.Events.LogEventLevel)_appConfiguration.LogLevel;
_logger.Log($"LogLevel: {_appConfiguration.LogLevel}", Category.Debug, Priority.Low);
_logger.Log($"{Global.ApplicationName} {VersionHelper.PublishVersion} {VersionHelper.PublishBuild} started", Category.Info, Priority.Medium);
// check application configuration
_logger.Log($"checking {Global.AppConfigurationFile}", Category.Info, Priority.Medium);
var resetApplicationConfig = false;
if (_appConfiguration != null)
{
if (_appConfiguration.Proxies != null)
{
foreach (var proxy in _appConfiguration.Proxies)
{
var decodedStamp = StampTools.Decode(proxy.Stamp);
if (decodedStamp != null)
{
if (decodedStamp.Protocol == DnsCrypt.Models.StampProtocol.DnsCrypt)
{
//simple check if the stamp is a valid cleanbrowsing stamp
if (!decodedStamp.ProviderName.Equals(Global.ValidCleanBrowsingDnsCryptStamp))
{
resetApplicationConfig = true;
}
}
else if (decodedStamp.Protocol == DnsCrypt.Models.StampProtocol.DoH)
{
//simple check if the stamp is a valid cleanbrowsing stamp
if (!decodedStamp.Hostname.Equals(Global.ValidCleanBrowsingDohStamp))
{
resetApplicationConfig = true;
}
}
else
{
//unsupported stamp
resetApplicationConfig = true;
}
}
else
{
resetApplicationConfig = true;
}
_logger.Log($"{proxy.Name} loaded", Category.Info, Priority.Medium);
}
_logger.Log($"{Global.AppConfigurationFile} loaded", Category.Info, Priority.Medium);
}
else
{
resetApplicationConfig = true;
}
}
else
{
resetApplicationConfig = true;
_logger.Log($"failed to load {Global.AppConfigurationFile}", Category.Warn, Priority.Medium);
}
if (resetApplicationConfig)
{
_logger.Log($"reset {Global.AppConfigurationFile} to default", Category.Warn, Priority.Medium);
_appConfigurationService.Reset();
_appConfiguration = _appConfigurationService.Configuration;
if (_appConfiguration == null)
{
_logger.Log($"failed to reset {Global.AppConfigurationFile}", Category.Exception, Priority.High);
Environment.Exit(-1);
}
else
{
//no validation this time, just go on
}
}
_logger.Log($"checking {Global.DnsCryptProxyFolder} folder", Category.Info, Priority.Medium);
foreach (var proxyFile in Global.DnsCryptProxyFiles)
{
var proxyFilePath = Path.Combine(Directory.GetCurrentDirectory(), Global.DnsCryptProxyFolder, proxyFile);
if (!File.Exists(proxyFilePath))
{
_logger.Log($"missing {proxyFile}", Category.Warn, Priority.Medium);
}
else
{
_logger.Log($"found {proxyFile}", Category.Info, Priority.Low);
}
}
var isValidConfiguration = false;
_logger.Log($"checking {Global.DnsCryptConfigurationFile}", Category.Info, Priority.Medium);
var configurationCheck = DnsCryptProxyManager.IsConfigurationFileValid();
if (configurationCheck.Success)
{
isValidConfiguration = true;
_logger.Log($"{Global.DnsCryptConfigurationFile} is valid", Category.Info, Priority.Medium);
}
else
{
if (configurationCheck.StandardError.Contains("[FATAL] No servers configured"))
{
isValidConfiguration = true;
_logger.Log($"{Global.DnsCryptConfigurationFile} is valid (but no servers)", Category.Info, Priority.Medium);
}
}
if (isValidConfiguration)
{
var version = DnsCryptProxyManager.GetVersion();
if (!string.IsNullOrEmpty(version))
{
Title = $"{Global.ApplicationName} (dnscrypt-proxy {version})";
_logger.Log($"dnscrypt-proxy version: {version}", Category.Info, Priority.Medium);
}
else
{
Title = $"{Global.ApplicationName} (dnscrypt-proxy unknown)";
_logger.Log("dnscrypt-proxy version: unknown", Category.Warn, Priority.Medium);
}
_logger.Log($"loading {Global.DnsCryptConfigurationFile}", Category.Info, Priority.Medium);
if (DnscryptProxyConfigurationManager.LoadConfiguration())
{
_logger.Log($"{Global.DnsCryptConfigurationFile} loaded", Category.Info, Priority.Medium);
_dnscryptProxyConfiguration = DnscryptProxyConfigurationManager.DnscryptProxyConfiguration;
if (_dnscryptProxyConfiguration.Static != null && _dnscryptProxyConfiguration.Static.Count > 0)
{
if (_dnscryptProxyConfiguration.Static.ContainsKey(Global.DefaultCustomFilterKey))
{
_logger.Log($"found {Global.DefaultCustomFilterKey} filter", Category.Info, Priority.Medium);
IsCustomFilterEnabled = true;
}
else if (_dnscryptProxyConfiguration.Static.ContainsKey(Global.DefaultAdultFilterKey))
{
_logger.Log($"found {Global.DefaultAdultFilterKey} filter", Category.Info, Priority.Medium);
IsAdultFilterEnabled = true;
}
else if (_dnscryptProxyConfiguration.Static.ContainsKey(Global.DefaultFamilyFilterKey))
{
_logger.Log($"found {Global.DefaultFamilyFilterKey} filter", Category.Info, Priority.Medium);
IsFamilyFilterEnabled = true;
}
}
else
{
_logger.Log("no static filter configured", Category.Info, Priority.Medium);
}
if (IsCustomFilterEnabled || IsFamilyFilterEnabled || IsAdultFilterEnabled)
{
if (!DnsCryptProxyManager.IsDnsCryptProxyInstalled())
{
_logger.Log($"dnscrypt-proxy service is not installed, try install", Category.Info, Priority.High);
//install
Task.Run(() => { DnsCryptProxyManager.Install(); }).ConfigureAwait(false);
Task.Delay(Global.ServiceInstallTime).ConfigureAwait(false);
}
else
{
_logger.Log($"dnscrypt-proxy service is already installed", Category.Info, Priority.Medium);
}
if (!DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
_logger.Log($"dnscrypt-proxy service is not running, try start", Category.Info, Priority.High);
Task.Run(() => { DnsCryptProxyManager.Start(); }).ConfigureAwait(false);
Task.Delay(Global.ServiceStartTime).ConfigureAwait(false);
}
else
{
_logger.Log($"dnscrypt-proxy service is already running", Category.Info, Priority.Medium);
}
if (DnsCryptProxyManager.IsDnsCryptProxyRunning())
{
_logger.Log($"checking dns servers on network interfaces", Category.Info, Priority.High);
if (!HandleNetworkInterfaces(true))
{
_logger.Log($"could not update dns servers on network interfaces", Category.Warn, Priority.High);
}
}
else
{
_logger.Log($"could not start dnscrypt-proxy", Category.Warn, Priority.High);
}
}
}
else
{
_logger.Log($"could not load configuration: {Global.DnsCryptConfigurationFile}", Category.Warn, Priority.High);
Environment.Exit(-1);
}
}
else
{
_logger.Log($"invalid {Global.DnsCryptConfigurationFile}", Category.Warn, Priority.High);
Environment.Exit(-1);
}
}
catch (Exception ex)
{
_logger.Log(ex.Message, Category.Exception, Priority.High);
Environment.Exit(-1);
}
MessageQueue.Enqueue("🐞 You are using a preview version! May contain bugs! 🐞");
IsWorking = false;
}