/// <summary>
/// Read a specified clipboard data, encrypt and save it into a file.
/// </summary>
/// <param name="clipboardReader">The <see cref="ClipboardReader"/> used to read the data.</param>
/// <param name="identifier">The data identifier.</param>
/// <param name="clipboardDataPath">The full path to the clipboard data folder.</param>
private void WriteClipboardDataToFile(ClipboardReader clipboardReader, DataIdentifier identifier, string clipboardDataPath)
{
Requires.NotNull(clipboardReader, nameof(clipboardReader));
Requires.NotNull(identifier, nameof(identifier));
Requires.NotNullOrWhiteSpace(clipboardDataPath, nameof(clipboardDataPath));
var dataFilePath = Path.Combine(clipboardDataPath, $"{identifier.Identifier}.dat");
if (File.Exists(dataFilePath))
{
Logger.Instance.Fatal(new FileLoadException($"The file {dataFilePath} already exists."));
}
var dataPassword = SecurityHelper.ToSecureString(SecurityHelper.EncryptString(SecurityHelper.ToSecureString(identifier.Identifier.ToString())));
Requires.NotNull(dataPassword, nameof(dataPassword));
clipboardReader.BeginRead(identifier.FormatName);
Requires.IsTrue(clipboardReader.IsReadable);
Requires.IsTrue(clipboardReader.CanReadNextBlock());
using (var fileStream = File.OpenWrite(dataFilePath))
using (var aesStream = new AesStream(fileStream, dataPassword, SecurityHelper.GetSaltKeys(dataPassword).GetBytes(16)))
{
aesStream.AutoDisposeBaseStream = false;
while (clipboardReader.CanReadNextBlock())
{
var buffer = clipboardReader.ReadNextBlock();
aesStream.Write(buffer, 0, buffer.Length);
}
aesStream.Position = 0;
}
clipboardReader.EndRead();
}
public void ClipboardWriterAndReader()
{
using (var clipboardWriter = new ClipboardWriter())
{
var value = new MemoryStream(new byte[] { 72, 101, 108, 108, 111 }); // "Hello" in binary
clipboardWriter.AddData("ASCIITextTest", value);
clipboardWriter.Flush();
}
var dataFromClipboard = (MemoryStream)System.Windows.Clipboard.GetData("ASCIITextTest");
Assert.IsTrue(dataFromClipboard.ToArray().SequenceEqual(new byte[] { 72, 101, 108, 108, 111 }));
var dataFromClipboard2 = new MemoryStream();
var dataObject = (System.Windows.DataObject)System.Windows.Clipboard.GetDataObject();
using (var clipboardReader = new ClipboardReader(dataObject))
{
Assert.IsFalse(clipboardReader.IsReadable);
Assert.IsFalse(clipboardReader.CanReadNextBlock());
foreach (var format in dataObject.GetFormats())
{
clipboardReader.BeginRead(format);
Assert.IsTrue(clipboardReader.IsReadable);
Assert.IsTrue(clipboardReader.CanReadNextBlock());
while (clipboardReader.CanReadNextBlock())
{
var buffer = clipboardReader.ReadNextBlock();
dataFromClipboard2.Write(buffer, 0, buffer.Length);
}
clipboardReader.EndRead();
}
}
Assert.IsTrue(dataFromClipboard2.ToArray().SequenceEqual(new byte[] { 72, 101, 108, 108, 111 }));
}