Delphi DLL

IMAP Login Secure

Demonstrates how to use the LoginSecure method introduced in Chilkat v9.5.0.71. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, SecureString, Imap, JsonObject, Crypt2;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
imap: HCkImap;
json: HCkJsonObject;
crypt: HCkCrypt2;
ssLogin: HCkSecureString;
ssPassword: HCkSecureString;

begin
success := False;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

imap := CkImap_Create();

// Connect to an IMAP server..
CkImap_putSsl(imap,True);
CkImap_putPort(imap,993);
success := CkImap_Connect(imap,'imap.mail.me.com');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Imagine we've previously saved our encrypted login and password within a JSON config file
// that contains this:

// {
//   "imap_login": "fLkxsfnVaIWLiL/R32jo6g==",
//   "imap_password": "/NbaFBoCftBLFf8WBU9Xtw=="
// }

json := CkJsonObject_Create();
CkJsonObject_LoadFile(json,'qa_data/passwords/imap.json');

crypt := CkCrypt2_Create();

// These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
CkCrypt2_putCryptAlgorithm(crypt,'aes');
CkCrypt2_putCipherMode(crypt,'cbc');
CkCrypt2_putKeyLength(crypt,128);
CkCrypt2_SetEncodedKey(crypt,'000102030405060708090A0B0C0D0E0F','hex');
CkCrypt2_SetEncodedIV(crypt,'000102030405060708090A0B0C0D0E0F','hex');
CkCrypt2_putEncodingMode(crypt,'base64');

ssLogin := CkSecureString_Create();
ssPassword := CkSecureString_Create();

// Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
// a randomly generated session key.)
CkCrypt2_DecryptSecureENC(crypt,CkJsonObject__stringOf(json,'imap_login'),ssLogin);
CkCrypt2_DecryptSecureENC(crypt,CkJsonObject__stringOf(json,'imap_password'),ssPassword);

// Pass the credentials to the LoginSecure method:
success := CkImap_LoginSecure(imap,ssLogin,ssPassword);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// ...

CkImap_Disconnect(imap);

CkImap_Dispose(imap);
CkJsonObject_Dispose(json);
CkCrypt2_Dispose(crypt);
CkSecureString_Dispose(ssLogin);
CkSecureString_Dispose(ssPassword);

end;