public static async Task StoreReceiptAsync(string productId, string receipt)
{
if (productId.Contains("subscritpion") && DownloadManager.ReceiptExpired(receipt))
{
return;
}
var encryptedFilename = CipherEncryption(productId);
var encodedFileName = Convert.ToBase64String(encryptedFilename.ToArray());
var encodedAndEscapedFilename = encodedFileName.Replace('/', '-');
// TEST ONLY
// =================================================
//var f = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(@"Assets\test\receipt.pmd");
//var xml = new XmlDocument();
//xml = await XmlDocument.LoadFromFileAsync(f);
//var item = xml.GetElementsByTagName("ProductReceipt")[0] as XmlElement;
//item.SetAttribute("ProductId", productId);
//var date = new DateTimeOffset(DateTime.Now);
//date = date.AddMinutes(3);
//var str = date.ToString("u");
//str = str.Replace(" ", "T");
//item.SetAttribute("ExpirationDate", str);
//receipt = xml.GetXml();
//if (DownloadManager.ReceiptExpired(receipt)) return;
// =================================================
var folder = ApplicationData.Current.RoamingFolder;
if (folder == null)
{
return;
}
folder = await folder.CreateFolderAsync("Receipts", CreationCollisionOption.OpenIfExists);
var file = await folder.CreateFileAsync(encodedAndEscapedFilename + ".pmd", CreationCollisionOption.ReplaceExisting);
IBuffer buffEncrypted = CipherEncryption(receipt);
var stream = await file.OpenAsync(FileAccessMode.ReadWrite);
await stream.WriteAsync(buffEncrypted);
await stream.FlushAsync();
stream.Dispose();
stream = null;
buffEncrypted = null;
file = null;
ApplicationData.Current.SignalDataChanged();
//CipherDecryption(buffEncrypted);
}
public static string GetUrl(string productId, string receipt, string relUrl, string clientName, string magName)
{
if (productId.Contains("subscritpion") && DownloadManager.ReceiptExpired(receipt))
{
return("NoReceipt");
}
receipt = Uri.EscapeDataString(receipt);
var url = "http://download.librelio.com/downloads/win8_verify.php";
url += "?receipt=" + receipt + "&product_id=" + productId + "&urlstring=" + clientName + "/" + magName + "/" + relUrl;
return(url);
}
private static async Task <string> GetReceiptAsync(string productId)
{
var encryptedFilename = CipherEncryption(productId);
var encodedFileName = Convert.ToBase64String(encryptedFilename.ToArray());
var encodedAndEscapedFilename = encodedFileName.Replace('/', '-');
//var folder = ApplicationData.Current.RoamingFolder;
var folder = ApplicationData.Current.RoamingFolder;
if (folder == null)
{
return("NoReceipt");
}
folder = await folder.CreateFolderAsync("Receipts", CreationCollisionOption.OpenIfExists);
try
{
var file = await folder.GetFileAsync(encodedAndEscapedFilename + ".pmd");
var stream = await file.OpenAsync(FileAccessMode.Read);
var dataReader = new DataReader(stream.GetInputStreamAt(0));
uint u = await dataReader.LoadAsync((uint)stream.Size);
IBuffer buffEncrypted = dataReader.ReadBuffer(u);
dataReader.DetachStream();
stream.Dispose();
stream = null;
var receipt = CipherDecryption(buffEncrypted);
if (productId.Contains("subscritpion") && DownloadManager.ReceiptExpired(receipt))
{
await file.DeleteAsync(StorageDeleteOption.PermanentDelete);
return("NoReceipt");
}
return(receipt);
}
catch (Exception e)
{
return("NoReceipt");
}
}
