Provider GetProvider()
{
using (SelectProvider sp = new SelectProvider(Program.AllProviders))
{
sp.ShowDialog();
return(sp.SelectedProvider);
}
}
void LoadImage(string path)
{
pngOriginal = new PNG(path);
using (MemoryStream stream = new MemoryStream())
{
if (imgOriginal.Image != null)
{
imgOriginal.Image.Dispose();
}
pngOriginal.WriteToStream(stream, true, true);
stream.Seek(0, SeekOrigin.Begin);
Image img = Image.FromStream(stream);
imgOriginal.Image = img;
imghandler(imgOriginal, null);
}
lblNoFile.Visible = false;
List <Provider> providers = new List <Provider>(Program.Providers);
bool hasEOF = false;
bool hasTXT = false;
int IDATs = 0;
foreach (PNGChunk chunk in pngOriginal.Chunks)
{
if (chunk.Name == "_EOF")
{
hasEOF = true;
}
if (chunk.Name == "tEXt")
{
hasTXT = true;
}
if (chunk.Name == "IDAT")
{
IDATs++;
}
}
if (hasEOF)
{
providers.Add(Program.XOREOF);
}
if (hasTXT)
{
providers.Add(Program.XORTXT);
}
if (IDATs > 1)
{
providers.Add(Program.XORIDAT);
}
Provider pr = null;
if (providers.Count > 0)
{
using (SelectProvider prov = new SelectProvider(providers.ToArray()))
{
prov.ShowDialog();
pr = prov.SelectedProvider;
}
}
providers = null;
if (pr == null)
{
provider = null; SetHidden(DataType.None, null); tabs.SelectedIndex = 0;
}
else
{
try
{
provider = (SteganographyProvider)Activator.CreateInstance(pr.ProviderType, pngOriginal, true);
DisposeHidden();
object data;
DataType t = provider.Extract(out data);
hidden = data;
SetHidden(t, data);
hiddent = t;
if (t != DataType.None)
{
menuActionDumpHidden.Enabled = true;
}
}
catch (InvalidPasswordException)
{
provider = null; SetHidden(DataType.None, null); tabs.SelectedIndex = 0;
MessageBox.Show(this, "The password you entered was incorrect.", "Incorrect Password", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
tabs.Enabled = true;
menuActionInject.Enabled = true;
menuActionDumpOriginal.Enabled = true;
pngOriginal.RemoveNonCritical();
}