private void DoCheck()
{
checkLicenseButton.Enabled = false;
SetProgressBarIndeterminateVisibility(true);
checkLicenseButton.SetText(Resource.String.checking_license);
checker.CheckAccess(this);
}
/// <summary>
/// The run.
/// </summary>
public void Run()
{
this.context.IsServiceRunning = true;
this.context.downloadNotification.OnDownloadStateChanged(DownloaderState.FetchingUrl);
string deviceId = Settings.Secure.GetString(this.context.ContentResolver, Settings.Secure.AndroidId);
var aep = new ApkExpansionPolicy(
this.context, new AesObfuscator(this.context.Salt, this.context.PackageName, deviceId));
// reset our policy back to the start of the world to force a re-check
aep.ResetPolicy();
// let's try and get the OBB file from LVL first
// Construct the LicenseChecker with a IPolicy.
var checker = new LicenseChecker(this.context, aep, this.context.PublicKey);
checker.CheckAccess(new ApkLicenseCheckerCallback(this, aep));
}
private void CheckLicense()
{
string deviceId = Settings.Secure.GetString(ContentResolver, Settings.Secure.AndroidId);
// Construct the LicenseChecker with a policy.
var obfuscator = new AesObfuscator(Salt, PackageName, deviceId);
var policy = new ServerManagedPolicy(this, obfuscator);
_licenseChecker = new LicenseChecker(this, policy, Xamarin.InAppBilling.Utilities.Security.Unify(new[] {
GetNumberString(3),
GetNumberString(6),
GetNumberString(1),
GetNumberString(4),
GetNumberString(2),
GetNumberString(7),
GetNumberString(0),
GetNumberString(5)
}, new[] { 0, 1, 2, 3, 4, 5, 6, 7 }));
_licenseChecker.CheckAccess(this);
}
private void CheckLVL()
{
var salt = new byte[] { 28, 65, 30, 128, 103, 87, 74, 64, 51, 88, 95, 45, 91, 121, 36 };
// create a app-unique identifer to prevent other apps from decrypting the responses
var deviceInfoHelper = DependencyService.Resolve <IDeviceInfoHelper>();
deviceInfoHelper.AppPackageName = this.PackageName;
deviceInfoHelper.DeviceId = Android.Provider.Settings.Secure.GetString(ContentResolver, Android.Provider.Settings.Secure.AndroidId);
deviceInfoHelper.AppVersionName = this.ApplicationContext.PackageManager.GetPackageInfo(PackageName, 0).VersionName;
// create the obfuscator that will read and write the saved responses,
// passing the salt, the package name and the device identifier
var obfuscator = new AESObfuscator(salt, deviceInfoHelper.AppPackageName, deviceInfoHelper.DeviceId);
// create the policy, passing a Context and the obfuscator
var policy = new ServerManagedPolicy(this, obfuscator);
// create the checker
var checker = new LicenseChecker(this, policy, ApiKey);
// start the actual check, passing the callback
checker.CheckAccess(this);
}
