(AutoIt) Build a multipart/related MIME Message

Demonstrates how to construct a multipart/related MIME message containing HTML and a related JPG image.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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

Local $bSuccess

; Start with an empty MIME object...
$oMime = ObjCreate("Chilkat_9_5_0.Mime")

; Initialize it as multipart/related.
$oMime.NewMultipartRelated()

; Set a top-level MIME header field.
$oMime.SetHeaderField("Subject","Test HTML email with JPG image.")

; Generate a Content-ID.  This will contain random data that will allow
; the HTML's "img" tag to reference the image part in the MIME.
$oCrypt = ObjCreate("Chilkat_9_5_0.Crypt2")
$oCrypt.EncodingMode = "hex"

$oSbContentId = ObjCreate("Chilkat_9_5_0.StringBuilder")
$oSbContentId.Append("part1.")
$oSbContentId.Append($oCrypt.GenRandomBytesENC(4))
$oSbContentId.Append(".")
$oSbContentId.Append($oCrypt.GenRandomBytesENC(4))
$oSbContentId.Append("@chilkatsoft.com")

; Create the HTML body.
$oSbHtml = ObjCreate("Chilkat_9_5_0.StringBuilder")
$oSbHtml.Append("<html><head>" & @CRLF)
$oSbHtml.Append("<meta http-equiv=""Content-Type"" content=""text/html; charset=utf-8"">" & @CRLF)
$oSbHtml.Append("  </head>" & @CRLF)
$oSbHtml.Append("  <body bgcolor=""#FFFFFF"" text=""#000000"">" & @CRLF)
$oSbHtml.Append("    <p>This is a test.&nbsp; <img src=""cid:CONTENT_ID"" height=""20"" width=""20""></p>" & @CRLF)
$oSbHtml.Append("  </body>" & @CRLF)
$oSbHtml.Append("</html>" & @CRLF)
Local $iNumReplacements = $oSbHtml.Replace("CONTENT_ID",$oSbContentId.GetAsString())

; Create the HTML MIME part.
$oHtmlMime = ObjCreate("Chilkat_9_5_0.Mime")
$oHtmlMime.SetBodyFromHtml($oSbHtml.GetAsString())
$oHtmlMime.Encoding = "8bit"
$oHtmlMime.Charset = "utf-8"

; Load our JPG image from a file.
$oFac = ObjCreate("Chilkat_9_5_0.FileAccess")
Local $oJpgBytes
$oJpgBytes = $oFac.ReadEntireFile("qa_data/jpg/starfish20.jpg")

; Create an image/jpeg MIME part.
$oJpgMime = ObjCreate("Chilkat_9_5_0.Mime")
$oJpgMime.SetBodyFromBinary($oJpgBytes)
; Setting the following properties has the effect of adding
; the Content-Type, Content-Transfer-Encoding, and Content-Disposition header fields.
; These header fields could also be set via the SetHeaderField method, in which case
; the values of the affected properties would be updated.
$oJpgMime.ContentType = "image/jpeg"
$oJpgMime.Name = "starfish20.jpg"
$oJpgMime.Encoding = "base64"
$oJpgMime.Disposition = "inline"
$oJpgMime.Filename = "starfish20.jpg"

$oSbContentIdHdr = ObjCreate("Chilkat_9_5_0.StringBuilder")
$oSbContentIdHdr.Append("<CONTENT_ID>")
$iNumReplacements = $oSbContentIdHdr.Replace("CONTENT_ID",$oSbContentId.GetAsString())
$oJpgMime.SetHeaderField("Content-ID",$oSbContentIdHdr.GetAsString())

; Add both parts as children of the multipart/related
$oMime.AppendPart($oHtmlMime)
$oMime.AppendPart($oJpgMime)
ConsoleWrite($oMime.GetMime() & @CRLF)

; --------------------------------------------------------------
; --------------------------------------------------------------
; This example builds the following MIME message.  The boundary
; and Content-ID strings contain random data and will be different.  

; Content-Type: multipart/related; boundary="------------A940F1230E6F0105F03DB2CB"
; Subject: Test HTML email with JPG image.
; 
; --------------A940F1230E6F0105F03DB2CB
; Content-Type: text/html; charset="utf-8"
; Content-Transfer-Encoding: 8bit
; 
; <html><head>
; <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
;   </head>
;   <body bgcolor="#FFFFFF" text="#000000">
;     <p>This is a test.&nbsp; <img src="cid:part1.E16AE3B4.1505C436@chilkatsoft.com" height="20" width="20"></p>
;   </body>
; </html>
; 
; --------------A940F1230E6F0105F03DB2CB
; Content-Transfer-Encoding: base64
; Content-Type: image/jpeg; name="starfish20.jpg"
; Content-Disposition: inline; filename="starfish20.jpg"
; Content-ID: <part1.E16AE3B4.1505C436@chilkatsoft.com>
; 
; /9j/4AAQSkZJRgABAQEASABIAAD//gAmRmlsZSB3cml0dGVuIGJ5IEFkb2JlIFBob3Rvc2hvcD8g
; NC4w/9sAQwAQCwwODAoQDg0OEhEQExgoGhgWFhgxIyUdKDozPTw5Mzg3QEhcTkBEV0U3OFBtUVdf
; YmdoZz5NcXlwZHhcZWdj/9sAQwEREhIYFRgvGhovY0I4QmNjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj
; Y2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj/8IAEQgAFAAUAwERAAIRAQMRAf/EABcAAAMBAAAA
; AAAAAAAAAAAAAAIDBAX/xAAYAQADAQEAAAAAAAAAAAAAAAABAgMEAP/aAAwDAQACEAMQAAAB2kZY
; NNEijWKddfTmLgALWH//xAAbEAACAgMBAAAAAAAAAAAAAAABAgMRAAQSE//aAAgBAQABBQL0XqN+
; pM2aqJGMiqFFCyg7z//EABwRAAICAgMAAAAAAAAAAAAAAAERAAIQIQMSUf/aAAgBAwEBPwHqU5aq
; Axx+y1tMQl4elj//xAAcEQEAAQUBAQAAAAAAAAAAAAABEQACEBIhA1H/2gAIAQIBAT8B3Bhqy7Zc
; enyiwmGgDhiOzj//xAAdEAABAwUBAAAAAAAAAAAAAAABAAIREBIhIkFR/9oACAEBAAY/ArZyn+Cg
; xtxWuJaoCnqDuin/xAAcEAABBAMBAAAAAAAAAAAAAAABABEhYRAxQVH/2gAIAQEAAT8hkEwPUUR9
; DYfE4nxtRpIkBTsayuALIiuY/9oADAMBAAIAAwAAABDWPTsf/8QAGhEAAwADAQAAAAAAAAAAAAAA
; AAEREDFBIf/aAAgBAwEBPxC0DVPcWm+Ce4OesrkE6bjH/8QAGBEBAQEBAQAAAAAAAAAAAAAAAREA
; QRD/2gAIAQIBAT8QahMiOc8YgSrnTY3ELclHXn//xAAcEAEBAAIDAQEAAAAAAAAAAAABEQAhMUFx
; EFH/2gAIAQEAAT8Qn3igmSZSj+c4N4zapMy9IjFV98wncN2iuLFsCEbDGxQkI6RO/n//2Q==
; 
; --------------A940F1230E6F0105F03DB2CB--
;