public static Image Parse(TextReader reader, int context)
{
var stream = ByteaConverter.ParseStream(reader, context);
if (stream == null)
{
return(null);
}
return(Image.FromStream(stream));
}
public static PostgresTuple ToTuple(SecureString value)
{
if (value == null)
{
return(null);
}
var decoded = Marshal.PtrToStringBSTR(Marshal.SecureStringToBSTR(value));
return(ByteaConverter.ToTuple(RsaProvider.Encrypt(Encoding.UTF8.GetBytes(decoded), false)));
}
public static Image FromDatabase(string value)
{
if (value == null)
{
return(null);
}
var bytes = ByteaConverter.FromDatabase(value);
var ms = new MemoryStream(bytes);
return(Image.FromStream(ms));
}
public static PostgresTuple ToTuple(Image value)
{
if (value == null)
{
return(null);
}
using (var ms = new MemoryStream())
{
value.Save(ms, ImageFormat.Png);
return(ByteaConverter.ToTuple(ms.ToArray()));
}
}
public static string ToDatabase(Image value)
{
if (value == null)
{
return(null);
}
using (var ms = new MemoryStream())
{
value.Save(ms, ImageFormat.Png);
ms.Position = 0;
return(ByteaConverter.ToDatabase(ms.ToArray()));
}
}
public static List <Image> ParseCollection(TextReader reader, int context)
{
var list = ByteaConverter.ParseStreamCollection(reader, context, true);
if (list == null)
{
return(null);
}
var result = new List <Image>(list.Count);
foreach (var stream in list)
{
result.Add(stream != null ? Image.FromStream(stream) : null);
}
return(result);
}
public static SecureString FromDatabase(string value)
{
if (value == null)
{
return(null);
}
var data = ByteaConverter.FromDatabase(value);
var ss = new SecureString();
var utf8string = Encoding.UTF8.GetString(RsaProvider.Decrypt(data, false));
foreach (var c in utf8string)
{
ss.AppendChar(c);
}
return(ss);
}
public static SecureString Parse(TextReader reader, int context)
{
var ss = new SecureString();
var bytes = ByteaConverter.Parse(reader, context);
if (bytes == null)
{
return(ss);
}
var utf8string = Encoding.UTF8.GetString(RsaProvider.Decrypt(bytes, false));
foreach (var c in utf8string)
{
ss.AppendChar(c);
}
return(ss);
}
public static List <SecureString> ParseCollection(TextReader reader, int context, bool allowNulls)
{
var list = ByteaConverter.ParseCollection(reader, context, allowNulls);
if (list == null)
{
return(null);
}
var result = new List <SecureString>();
foreach (var item in list)
{
var ss = new SecureString();
var utf8string = Encoding.UTF8.GetString(RsaProvider.Decrypt(item, false));
foreach (var c in utf8string)
{
ss.AppendChar(c);
}
result.Add(ss);
}
return(result);
}
