private void FileSearchAddResult(string result)
{
try
{
if (InvokeRequired)
{
Invoke(new Action(() => { FileSearchAddResult(result); }));
}
else
{
FileSearchResultsTextBox.AppendText(result + "\r\n");
}
}
catch { }
}
private void FileSearchButton_Click(object sender, EventArgs e)
{
string searchtxt = FileSearchTextBox.Text;
string searchfolder = FileSearchFolderTextBox.Text;
AbortOperation = false;
if (InProgress)
{
return;
}
if (searchfolder.Length == 0)
{
MessageBox.Show("Please select a folder...");
return;
}
if (!Directory.Exists(searchfolder))
{
MessageBox.Show("Please select a valid folder!");
return;
}
FileSearchResultsTextBox.Clear();
byte[] searchbytes1;
byte[] searchbytes2;
int bytelen;
if (FileSearchHexRadio.Checked)
{
try
{
bytelen = searchtxt.Length / 2;
searchbytes1 = new byte[bytelen];
searchbytes2 = new byte[bytelen];
for (int i = 0; i < bytelen; i++)
{
searchbytes1[i] = Convert.ToByte(searchtxt.Substring(i * 2, 2), 16);
searchbytes2[bytelen - i - 1] = searchbytes1[i];
}
}
catch
{
MessageBox.Show("Please enter a valid hex string.");
return;
}
}
else
{
bytelen = searchtxt.Length;
searchbytes1 = new byte[bytelen];
searchbytes2 = new byte[bytelen];
for (int i = 0; i < bytelen; i++)
{
searchbytes1[i] = (byte)searchtxt[i];
searchbytes2[bytelen - i - 1] = searchbytes1[i];
}
}
FileSearchPanel.Enabled = false;
InProgress = true;
Task.Run(() =>
{
FileSearchAddResult("Searching " + searchfolder + "...");
string[] filenames = Directory.GetFiles(searchfolder);
int matchcount = 0;
foreach (string filename in filenames)
{
FileInfo finf = new FileInfo(filename);
byte[] filebytes = File.ReadAllBytes(filename);
int hitlen1 = 0;
int hitlen2 = 0;
for (int i = 0; i < filebytes.Length; i++)
{
byte b = filebytes[i];
byte b1 = searchbytes1[hitlen1]; //current test byte 1
byte b2 = searchbytes2[hitlen2];
if (b == b1)
{
hitlen1++;
}
else
{
hitlen1 = 0;
}
if (b == b2)
{
hitlen2++;
}
else
{
hitlen2 = 0;
}
if (hitlen1 == bytelen)
{
FileSearchAddResult(finf.Name + ":" + (i - bytelen));
matchcount++;
hitlen1 = 0;
}
if (hitlen2 == bytelen)
{
FileSearchAddResult(finf.Name + ":" + (i - bytelen));
matchcount++;
hitlen2 = 0;
}
if (AbortOperation)
{
FileSearchAddResult("Search aborted.");
FileSearchComplete();
InProgress = false;
return;
}
}
}
FileSearchAddResult(string.Format("Search complete. {0} results found.", matchcount));
FileSearchComplete();
InProgress = false;
});
}