Unicode C++

SMTP Login Secure

Demonstrates how to set the SMTP password using a secure string.

This example requires Chilkat v9.5.0.71 or greater.

Unicode C++

#include <CkMailManW.h>
#include <CkJsonObjectW.h>
#include <CkCrypt2W.h>
#include <CkSecureStringW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkMailManW mailman;

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

    //  {
    //    "smtp_login": "D7lnlWY291LKMeChlvQq7N/Tg7ieuSB15a+9Ekyd0R4=",
    //    "smtp_password": "5neIq9Jmn0E3p71N6Yc8TA=="
    //  }

    CkJsonObjectW json;
    json.LoadFile(L"qa_data/passwords/smtp.json");

    CkCrypt2W crypt;

    //  These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
    crypt.put_CryptAlgorithm(L"aes");
    crypt.put_CipherMode(L"cbc");
    crypt.put_KeyLength(128);
    crypt.SetEncodedKey(L"000102030405060708090A0B0C0D0E0F",L"hex");
    crypt.SetEncodedIV(L"000102030405060708090A0B0C0D0E0F",L"hex");
    crypt.put_EncodingMode(L"base64");

    CkSecureStringW ssLogin;
    CkSecureStringW ssPassword;

    //  Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
    //  a randomly generated session key.)
    crypt.DecryptSecureENC(json.stringOf(L"smtp_login"),ssLogin);
    crypt.DecryptSecureENC(json.stringOf(L"smtp_password"),ssPassword);

    //  Set the SMTP domain, login, and password
    mailman.put_SmtpHost(L"smtp.gmail.com");
    mailman.put_SmtpSsl(true);
    mailman.put_SmtpPort(465);

    mailman.put_SmtpUsername(ssLogin.access());
    //  Set the SmtpPassword property via the SetPassword method using the secure string.
    mailman.SetPassword(L"smtp",ssPassword);

    //  Connect and authenticate..
    success = mailman.SmtpConnect();
    if (success != true) {
        wprintf(L"%s\n",mailman.lastErrorText());
        return;
    }

    success = mailman.SmtpAuthenticate();
    if (success != true) {
        wprintf(L"%s\n",mailman.lastErrorText());
        return;
    }

    wprintf(L"SMTP login successful.\n");

    //  ...

    mailman.CloseSmtpConnection();
    }