/// <summary>
/// Verifica se il prodotto è sbloccato da codice di sblocco.
/// </summary>
/// <param name="productInfo">Informazioni sul prodotto</param>
/// <returns>Restituire true se il prodotto è sbloccato, false altrimenti</returns>
public bool IsProductUnlocked(ProductCache productInfo)
{
try
{
if (productInfo == null)
{
throw new Exception("Product object is null");
}
if (productInfo.Purchased)
{
Debug.WriteLine("Do not invoke IsProductUnlocked for purchased product [{0}]", new[] { productInfo.Id });
return(true);
}
if (productInfo.Unlocked && !productInfo.UnlockCodeExpire)
{
Debug.WriteLine("Product {0} is unlocked without expiration terms", new [] { productInfo.Id });
return(true);
}
if (string.IsNullOrEmpty(App.PwdManager.Password))
{
return(productInfo.Unlocked);
}
productInfo.Unlocked = CheckUnlockCode(productInfo.Id, productInfo.UnlockCode, App.PwdManager.Password, out bool expire);
productInfo.UnlockCodeExpire = expire;
return(productInfo.Unlocked);
}
catch (Exception ex)
{
Debug.WriteLine("IsProductUnlocked error: " + ex.Message);
return(false);
}
}
/// <summary>
/// Legge i dati presenti in cache
/// </summary>
/// <returns></returns>
public async Task ReadCache()
{
ProductsList.Clear();
try
{
StreamReader streamReader = new StreamReader(AppCacheFileName);
string content = await streamReader.ReadToEndAsync();
streamReader.Close();
if (string.IsNullOrEmpty(content))
{
await WriteCache();
return;
}
EncDecHelper enc = new EncDecHelper
{
PasswordString = Password
};
string json = enc.AESDecrypt(content, out bool warning);
if (warning)
{
Debug.WriteLine("CacheManager read: warning in file reading");
}
JObject jObject = JObject.Parse(json);
if (Utility.SafeTryGetJSONString(jObject, "version", out string version))
{
Debug.WriteLine("CacheManager file version " + version);
}
if (Utility.SafeTryGetJSON(jObject, "products", out JToken productsToken))
{
JArray products = productsToken.ToObject <JArray>();
foreach (JObject item in products)
{
ProductCache product = new ProductCache
{
Id = item[nameof(ProductCache.Id)].ToString(),
Purchased = item[nameof(ProductCache.Purchased)].ToObject <bool>()
};
// Dalla versione 1.1.0 ho il codice di sblocco della versioen PLUS
if (CompareVersions(version, "1.1.0") >= 0)
{
product.Unlocked = item[nameof(ProductCache.Unlocked)].ToObject <bool>();
product.UnlockCode = item[nameof(ProductCache.UnlockCode)].ToObject <string>();
product.UnlockCodeExpire = item[nameof(ProductCache.UnlockCodeExpire)].ToObject <bool>();
}
ProductsList.Add(product);
}
}
}
catch (FileNotFoundException)
{
// Ok. Genera il file
await WriteCache();
}
catch (Exception ex)
{
Debug.WriteLine("CacheManager error on read: " + ex.Message);
}
}