public static String DecryptCsvFile(Stream file, CryptoProvider crypto)
{
StringBuilder sb = new StringBuilder();
using (StreamReader reader = new StreamReader(file))
{
String line;
while ((line = reader.ReadLine()) != null)
{
char[] delims = { ',' };
String[] values = line.Split(delims);
bool firstValue = true;
foreach (String value in values)
{
String rawValue = value.Trim('"', ' ');
String newValue = null;
crypto.TryDecryptOrValue(rawValue, out newValue);
if (firstValue)
{
firstValue = false;
}
else
{
sb.Append(",");
}
sb.Append(newValue);
}
sb.AppendLine(String.Empty);
}
reader.Close();
}
return(sb.ToString());
}
private static void DecryptXmlNode(XmlNode node, CryptoProvider crypto)
{
if (node.NodeType == XmlNodeType.Text || node.NodeType == XmlNodeType.Attribute)
{
String newValue = null;
crypto.TryDecryptOrValue(node.Value, out newValue);
if (node.Value != newValue)
{
node.Value = newValue;
}
}
else
{
foreach (XmlNode child in node.ChildNodes)
{
DecryptXmlNode(child, crypto);
}
foreach (XmlNode attribute in node.Attributes)
{
DecryptXmlNode(attribute, crypto);
}
}
}