Author Topic: WSCurl Send Mail  (Read 4161 times)

Benjamin Dasari

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WSCurl Send Mail
« on: October 13, 2016, 11:49:14 AM »
Purpose:
Send email using WSCurl from SAP.

Liquid UI Code:

// SAPLSMTR_NAVIGATION.E0100.sjs
load('wscurl');

// Function to check if the string value is blank
function isBlank(jvar) {
    if (jvar==void 0 || jvar=="" || jvar==null) {
        return true;
    } else {
        return false;
    }
}

function sendmail(){   
   /* Initialize the Curl object for making the call*/
   var wsCurl = new Curl();
   
   /* This is the URL for your mailserver. Note the use of port 587 here,
     * instead of the normal SMTP port (25). Port 587 is commonly used for
     * secure mail submission (see RFC4403), but you should use whatever
     * matches your server configuration. */
    // wsCurl.setopt(Curl.CURLOPT_URL, "smtp://smtp.google.com:587");

    wsCurl.setopt(Curl.CURLOPT_URL, "smtp://mail.guixt.com:25");
   
    /* In this example, we'll start with a plain text connection, and upgrade
     * to Transport Layer Security (TLS) using the STARTTLS command. Be careful
     * of using Curl.USESSL_TRY here, because if TLS upgrade fails, the transfer
     * will continue anyway - see the security discussion in the libcurl
     * tutorial for more details. Available 2nd Parameters are Curl.USESSL_NONE(0),
    * Curl.USESSL_TRY(1), Curl.USESSL_CONTROL(2) or Curl.USESSL_ALL(3)*/

    wsCurl.setopt(Curl.CURLOPT_USE_SSL, Curl.USESSL_ALL);

    /* If your server doesn't have a valid certificate, then you can disable
     * part of the Transport Layer Security protection by setting the
     * CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST options to 0 (false).
     *   wsCurl.setopt(Curl.CURLOPT_SSL_VERIFYPEER, 0);
     *   wsCurl.setopt(Curl.CURLOPT_SSL_VERIFYHOST, 0);
     * That is, in general, a bad idea. It is still better than sending your
     * authentication details in plain text though.
     * Instead, you should get the issuer certificate (or the host certificate
     * if the certificate is self-signed) and add it to the set of certificates
     * that are known to libcurl using CURLOPT_CAINFO.
    *    wsCurl.setopt(Curl.CURLOPT_CAINFO, "/path/to/certificate.pem");
     */

    /* A common reason for requiring transport security is to protect
     * authentication details (user names and passwords) from being "snooped"
     * on the network. Here is how the user name and password are provided: */
    // wsCurl.setopt(Curl.CURLOPT_USERNAME, "user@example.net");
    // wsCurl.setopt(Curl.CURLOPT_PASSWORD, "P@ssw0rd");

    wsCurl.setopt(Curl.CURLOPT_USERNAME, "benjamin.dasari@guixt.com");
    wsCurl.setopt(Curl.CURLOPT_PASSWORD, " ");      // Enter the Password

    /* value for envelope reverse-path. '<' '>' are REQUIRED around the email addr*/
    // wsCurl.setopt(Curl.CURLOPT_MAIL_FROM, "<email_of_sender@example.net>");

    wsCurl.setopt(Curl.CURLOPT_MAIL_FROM, "<benjamin.dasari@guixt.com>");
    /* Add two recipients, in this particular case they correspond to the
     * To: and Cc: addressees in the header, but they could be any kind of
     * recipient. */

     wsCurl.slist_append("<benjamin.dasari@guixt.com>");
    // wsCurl.slist_append("<email_of_cc_receipent@example.net>");
   
   /* Set the curl object to attach the recepients added above
    * The second parameter is a REQUIRED string to maintain the syntax,
    *  however it has no effect on the execution*/   

      wsCurl.setopt(Curl.CURLOPT_MAIL_RCPT, "recipients");
     
    /* Since the traffic will be encrypted, it is very useful to turn on debug
     * information within libcurl to see what is happening during the transfer.
     */

    wsCurl.setopt(Curl.CURLOPT_VERBOSE, 1);
   
   /* Set the buffer header and the data for the e-mail that is being sent*/
   var email = ["Date: Mon, 29 Nov 2010 21:54:29 +1100\n",
               "To: <umang.desai@guixt.com>\n",
               "From: <benjamin.dasari@guixt.com>\n",
               "Message-ID: ddmmyyyy.hhmm@domain.com\n",
               "Subject: WS embedded SMTP TLS MESSAGE\n",
               "\n", /* empty line to divide headers from body, see RFC5322 */
               "The body of the message starts here.\n",
               "\n",
               "It could be a lot of lines, could be MIME encoded, whatever.\n",
               "Check RFC5322.\n", NULL ];
            
   /* In this case, we're using a callback function to specify the data. You
     * could just use the CURLOPT_READDATA option to specify a var to read from*/

    wsCurl.setopt(Curl.CURLOPT_READDATA, email);
   
   /* Final step is to call execute to dispatch email*/
   wsCurl.exec();
   
   /* Clean up the recepient list*/
   wsCurl.slist_free_all();
   
   /* Close the smtp connection for the mail server*/
   wsCurl.close();
   
   /* Remove any reference for Garbage Collection*/
   wsCurl= NULL;
}

// User Interface
pushbutton([TOOLBAR], 'Send Mail', '?', {"process":sendmail});


See attachments for code samples!
« Last Edit: January 05, 2017, 10:38:05 AM by Benjamin Dasari »