/// <summary>
/// Checks if the user should have access to the app. Binds the service if necessary.
/// </summary>
/// <param name="callback">
/// The callback.
/// </param>
public void CheckAccess(ILicenseCheckerCallback callback)
{
lock (this.locker)
{
// If we have a valid recent LICENSED response, we can skip asking Market/Play.
if (this.policy.AllowAccess())
{
System.Diagnostics.Debug.WriteLine("Using cached license response");
callback.Allow(PolicyServerResponse.Licensed);
}
else
{
var validator = new LicenseValidator(
this.policy,
new NullDeviceLimiter(),
callback,
GenerateNumberUsedOnce(),
this.packageName,
this.versionCode);
if (this.licensingService == null)
{
try
{
var i = new Intent(LicensingServiceIntentString);
i.SetPackage(LicensingServicePackageString);
if (this.context.BindService(i, this, Bind.AutoCreate))
{
this.pendingChecks.Enqueue(validator);
}
else
{
Debug.WriteLine("Could not bind to service.");
this.HandleServiceConnectionError(validator);
}
}
catch (Java.Lang.SecurityException)
{
callback.ApplicationError(CallbackErrorCode.MissingPermission);
}
catch (Exception ex)
{
Debug.WriteLine(ex.StackTrace);
}
}
else
{
this.pendingChecks.Enqueue(validator);
this.RunChecks();
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="LicenseValidator"/> class.
/// </summary>
/// <param name="policy">
/// The policy.
/// </param>
/// <param name="deviceLimiter">
/// The device limiter.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="nonce">
/// The nonce.
/// </param>
/// <param name="packageName">
/// The package name.
/// </param>
/// <param name="versionCode">
/// The version code.
/// </param>
internal LicenseValidator(
IPolicy policy,
IDeviceLimiter deviceLimiter,
ILicenseCheckerCallback callback,
int nonce,
string packageName,
string versionCode)
{
this.policy = policy;
this.deviceLimiter = deviceLimiter;
this.licenseCheckerCallback = callback;
this.numberUsedOnce = nonce;
this.packageName = packageName;
this.versionCode = versionCode;
}
/// <summary>
/// Initializes a new instance of the <see cref="LicenseValidator"/> class.
/// </summary>
/// <param name="policy">
/// The policy.
/// </param>
/// <param name="deviceLimiter">
/// The device limiter.
/// </param>
/// <param name="callback">
/// The callback.
/// </param>
/// <param name="nonce">
/// The nonce.
/// </param>
/// <param name="packageName">
/// The package name.
/// </param>
/// <param name="versionCode">
/// The version code.
/// </param>
internal LicenseValidator(
IPolicy policy,
IDeviceLimiter deviceLimiter,
ILicenseCheckerCallback callback,
int nonce,
string packageName,
string versionCode)
{
this.policy = policy;
this.deviceLimiter = deviceLimiter;
this.licenseCheckerCallback = callback;
this.numberUsedOnce = nonce;
this.packageName = packageName;
this.versionCode = versionCode;
}
/// <summary>
/// Checks if the user should have access to the app. Binds the service if necessary.
/// </summary>
/// <param name="callback">
/// The callback.
/// </param>
public void CheckAccess(ILicenseCheckerCallback callback)
{
lock (this.locker)
{
// If we have a valid recent LICENSED response, we can skip asking Market/Play.
if (this.policy.AllowAccess())
{
System.Diagnostics.Debug.WriteLine("Using cached license response");
callback.Allow(PolicyServerResponse.Licensed);
}
else
{
var validator = new LicenseValidator(
this.policy,
new NullDeviceLimiter(),
callback,
GenerateNumberUsedOnce(),
this.packageName,
this.versionCode);
if (this.licensingService == null)
{
try
{
var i = new Intent(LicensingServiceIntentString);
i.SetPackage(LicensingServicePackageString);
if (this.context.BindService(i, this, Bind.AutoCreate))
{
this.pendingChecks.Enqueue(validator);
}
else
{
Debug.WriteLine("Could not bind to service.");
this.HandleServiceConnectionError(validator);
}
}
catch (Java.Lang.SecurityException)
{
callback.ApplicationError(CallbackErrorCode.MissingPermission);
}
catch (Exception ex)
{
Debug.WriteLine(ex.StackTrace);
}
}
else
{
this.pendingChecks.Enqueue(validator);
this.RunChecks();
}
}
}
}
