(Perl) Build a multipart/related MIME Message

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

Chilkat Perl Downloads

Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

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

# Start with an empty MIME object...
$mime = chilkat::CkMime->new();

# Initialize it as multipart/related.
$mime->NewMultipartRelated();

# Set a top-level MIME header field.
$mime->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.
$crypt = chilkat::CkCrypt2->new();
$crypt->put_EncodingMode("hex");

$sbContentId = chilkat::CkStringBuilder->new();
$sbContentId->Append("part1.");
$sbContentId->Append($crypt->genRandomBytesENC(4));
$sbContentId->Append(".");
$sbContentId->Append($crypt->genRandomBytesENC(4));
$sbContentId->Append('@chilkatsoft.com');

# Create the HTML body.
$sbHtml = chilkat::CkStringBuilder->new();
$sbHtml->Append("<html><head>\r\n");
$sbHtml->Append("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n");
$sbHtml->Append("  </head>\r\n");
$sbHtml->Append("  <body bgcolor=\"#FFFFFF\" text=\"#000000\">\r\n");
$sbHtml->Append("    <p>This is a test.&nbsp; <img src=\"cid:CONTENT_ID\" height=\"20\" width=\"20\"></p>\r\n");
$sbHtml->Append("  </body>\r\n");
$sbHtml->Append("</html>\r\n");
$numReplacements = $sbHtml->Replace("CONTENT_ID",$sbContentId->getAsString());

# Create the HTML MIME part.
$htmlMime = chilkat::CkMime->new();
$htmlMime->SetBodyFromHtml($sbHtml->getAsString());
$htmlMime->put_Encoding("8bit");
$htmlMime->put_Charset("utf-8");

# Load our JPG image from a file.
$fac = chilkat::CkFileAccess->new();
$jpgBytes = chilkat::CkByteData->new();
$success = $fac->ReadEntireFile("qa_data/jpg/starfish20.jpg",$jpgBytes);

# Create an image/jpeg MIME part.
$jpgMime = chilkat::CkMime->new();
$jpgMime->SetBodyFromBinary($jpgBytes);
# 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.
$jpgMime->put_ContentType("image/jpeg");
$jpgMime->put_Name("starfish20.jpg");
$jpgMime->put_Encoding("base64");
$jpgMime->put_Disposition("inline");
$jpgMime->put_Filename("starfish20.jpg");

$sbContentIdHdr = chilkat::CkStringBuilder->new();
$sbContentIdHdr->Append("<CONTENT_ID>");
$numReplacements = $sbContentIdHdr->Replace("CONTENT_ID",$sbContentId->getAsString());
$jpgMime->SetHeaderField("Content-ID",$sbContentIdHdr->getAsString());

# Add both parts as children of the multipart/related
$mime->AppendPart($htmlMime);
$mime->AppendPart($jpgMime);
print $mime->getMime() . "\r\n";

# --------------------------------------------------------------
# --------------------------------------------------------------
# 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--
#