DataFlex

SMTP Login Secure

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

This example requires Chilkat v9.5.0.71 or greater.

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoMailman
    Handle hoJson
    Handle hoCrypt
    Variant vSsLogin
    Handle hoSsLogin
    Variant vSsPassword
    Handle hoSsPassword
    String sTemp1

    Move False To iSuccess

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

    Get Create (RefClass(cComChilkatMailMan)) To hoMailman
    If (Not(IsComObjectCreated(hoMailman))) Begin
        Send CreateComObject of hoMailman
    End

    // 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=="
    // }

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComLoadFile Of hoJson "qa_data/passwords/smtp.json" To iSuccess

    Get Create (RefClass(cComChilkatCrypt2)) To hoCrypt
    If (Not(IsComObjectCreated(hoCrypt))) Begin
        Send CreateComObject of hoCrypt
    End

    // These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
    Set ComCryptAlgorithm Of hoCrypt To "aes"
    Set ComCipherMode Of hoCrypt To "cbc"
    Set ComKeyLength Of hoCrypt To 128
    Send ComSetEncodedKey To hoCrypt "000102030405060708090A0B0C0D0E0F" "hex"
    Send ComSetEncodedIV To hoCrypt "000102030405060708090A0B0C0D0E0F" "hex"
    Set ComEncodingMode Of hoCrypt To "base64"

    Get Create (RefClass(cComChilkatSecureString)) To hoSsLogin
    If (Not(IsComObjectCreated(hoSsLogin))) Begin
        Send CreateComObject of hoSsLogin
    End
    Get Create (RefClass(cComChilkatSecureString)) To hoSsPassword
    If (Not(IsComObjectCreated(hoSsPassword))) Begin
        Send CreateComObject of hoSsPassword
    End

    // Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
    // a randomly generated session key.)
    Get ComStringOf Of hoJson "smtp_login" To sTemp1
    Get pvComObject of hoSsLogin to vSsLogin
    Get ComDecryptSecureENC Of hoCrypt sTemp1 vSsLogin To iSuccess
    Get ComStringOf Of hoJson "smtp_password" To sTemp1
    Get pvComObject of hoSsPassword to vSsPassword
    Get ComDecryptSecureENC Of hoCrypt sTemp1 vSsPassword To iSuccess

    // Set the SMTP domain, login, and password
    Set ComSmtpHost Of hoMailman To "smtp.gmail.com"
    Set ComSmtpSsl Of hoMailman To True
    Set ComSmtpPort Of hoMailman To 465

    Get ComAccess Of hoSsLogin To sTemp1
    Set ComSmtpUsername Of hoMailman To sTemp1
    // Set the SmtpPassword property via the SetPassword method using the secure string.
    Get pvComObject of hoSsPassword to vSsPassword
    Get ComSetPassword Of hoMailman "smtp" vSsPassword To iSuccess

    // Connect and authenticate..
    Get ComSmtpConnect Of hoMailman To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoMailman To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComSmtpAuthenticate Of hoMailman To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoMailman To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "SMTP login successful."

    // ...

    Get ComCloseSmtpConnection Of hoMailman To iSuccess


End_Procedure