/// <summary>
/// Raises the <see cref="DecryptDataBlock"/> event.
/// </summary>
/// <param name="e">A <see cref="FdiDecryptEventArgs"/> that contains the event data.</param>
protected virtual void OnDecryptDataBlock(FdiDecryptEventArgs e)
{
if (DecryptDataBlock != null)
{
DecryptDataBlock(this, e);
}
}
/// <summary>
/// Raises the <see cref="DecryptNewCabinet"/> event.
/// </summary>
/// <param name="e">A <see cref="FdiDecryptEventArgs"/> that contains the event data.</param>
protected virtual void OnDecryptNewCabinet(FdiDecryptEventArgs e)
{
if (DecryptNewCabinet != null)
{
DecryptNewCabinet(this, e);
}
}
/// <summary>
/// Raises the <see cref="DecryptNewFolder"/> event.
/// </summary>
/// <param name="e">A <see cref="FdiDecryptEventArgs"/> that contains the event data.</param>
protected virtual void OnDecryptNewFolder(FdiDecryptEventArgs e)
{
if (DecryptNewFolder != null)
{
DecryptNewFolder(this, e);
}
}
/// <summary>
/// Receives decryption callback requests from the File Decompression Interface (FDI)
/// </summary>
/// <param name="fdid">A <see cref="FdiDecrypt"/> structure containing decrypt information.</param>
/// <returns>Returns -1 on error. Any other value indicates success.</returns>
/// <remarks>The File Decompression Interface (FDI) calls this function during decompression so that
/// clients can decrypt encrypted data. There are three notification types: Decrypt, NewCabinet, and NewFolder.
/// Clients that wish to receive these notifications must handle the <see cref="DecryptDataBlock"/>, <see cref="DecryptNewCabinet"/>,
/// and <see cref="DecryptNewFolder"/> events.</remarks>
protected virtual int DecryptCallback(ref FdiDecrypt fdid)
{
Trace.WriteLine("DecryptCallback");
FdiDecryptEventArgs e = new FdiDecryptEventArgs(fdid);
// fire the proper event
switch (fdid.DecryptType)
{
case FdiDecryptType.Decrypt:
OnDecryptDataBlock(e);
break;
case FdiDecryptType.NewCabinet:
OnDecryptNewCabinet(e);
break;
case FdiDecryptType.NewFolder:
OnDecryptNewFolder(e);
break;
}
return(0);
}