| public WriteValue ( string value ) : void | ||
| value | string | The text value to write into the page. |
| return | void | |
/// <summary>
/// Provides a record-by-record processing functionality for the cmdlet.
/// </summary>
protected override void ProcessRecord()
{
WebPageSteganography stegoPage = new WebPageSteganography(this.Path, this.Passphrase);
stegoPage.WriteValue(this.Message);
string check = stegoPage.ReadValue();
this.WriteVerbose(check);
this.WriteObject("Message saved.");
}
/// <summary>
/// The handler for HTTP GET requests.
/// </summary>
/// <param name="processor">The HTTP processor.</param>
public void HttpGetHandler(HttpProcessor processor)
{
processor.WriteSuccess();
Cryptkeeper myCrypt = new Cryptkeeper(this.passphrase);
DerivedValue derived = new DerivedValue(this.passphrase);
string result = derived.GetString(3, 10);
// No result? No handshake. Done.
if (processor.RequestURL.IndexOf(result) == -1) return;
// Parse out the host name and fetch the next page.
string hostname = string.Empty;
string absolutePath = processor.RequestURL;
string[] values = absolutePath.Split(new string[] { result }, StringSplitOptions.RemoveEmptyEntries);
absolutePath = values[0].Trim();
string hostBase64 = values[1].Trim();
byte[] hostBytes = System.Convert.FromBase64String(hostBase64);
hostname = Encoding.ASCII.GetString(hostBytes);
Uri link = new Uri(string.Concat("http://", hostname, absolutePath));
try
{
WebClient web = new WebClient();
byte[] page = web.DownloadData(link);
web.Dispose();
WebPageSteganography stegopage = new WebPageSteganography(page, this.passphrase);
string message = string.Empty;
if (this.MessageQueue.Count > 0)
{
message = (string)this.MessageQueue.Dequeue();
}
stegopage.WriteValue(message);
page = stegopage.GetBytes();
processor.StreamOutput.Write(page);
processor.StreamOutput.Flush();
processor.WriteSuccess();
}
catch (Exception ex)
{
processor.StreamOutput.Write("<html><p>Ping! Something odd happened while retrieving ... " + link.ToString() + "</p><p>" + ex.ToString() + "</p></html>");
}
}
