(Ruby) Extract Files from Binary SOAP MTOM MIME

This example demonstrates how to extract files from a binary SOAP MTOM MIME document.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

mime = Chilkat::CkMime.new()

# In this example, we have a MIME file containing 8bit (non-encoded) binary data,
# and it is what I call "headless".  MIME is headless when it omits
# the top-level header.  The file we have here begins with the first
# boundary string.

# The structure the MIME to be loaded is:

# multipart/mixed (inferred because it is headless)
#     application/xop+xml
#     image/jpeg
#     image/gif
#     image/gif
# 

success = mime.LoadMimeFile("qa_data/mime/headless_binary_soap_mtom_mime.mim")
if (success != true)
    print mime.lastErrorText() + "\n";
    exit
end

# The MIME file loaded in this example contains this:

# --uuid:e74486f4-52b0-44b6-b829-156810fae20d
# Content-Type: application/xop+xml; charset=UTF-8; type="application/soap+xml"
# Content-Transfer-Encoding: binary
# Content-ID: <root.message@cxf.apache.org>
# 
# <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"><soap:Body> ... </soap:Body></soap:Envelope>
# --uuid:e74486f4-52b0-44b6-b829-156810fae20d
# Content-Type: image/jpeg
# Content-Transfer-Encoding: binary
# Content-ID: <beee83b7-166c-494c-890a-def990e9887b-1496@cxf.apache.org>
# Content-Disposition: attachment;name="-2049913191"
# 
# BINARY DATA HERE...
# 
# --uuid:e74486f4-52b0-44b6-b829-156810fae20d
# Content-Type: image/gif
# Content-Transfer-Encoding: binary
# Content-ID: <beee83b7-166c-494c-890a-def990e9887b-1497@cxf.apache.org>
# Content-Disposition: attachment;name="-2049913188"
# 
# BINARY DATA HERE...
# 
# --uuid:e74486f4-52b0-44b6-b829-156810fae20d
# Content-Type: image/gif
# Content-Transfer-Encoding: binary
# Content-ID: <beee83b7-166c-494c-890a-def990e9887b-1498@cxf.apache.org>
# Content-Disposition: attachment;name="-2049913185"
# 
# BINARY DATA HERE...
# 
# --uuid:e74486f4-52b0-44b6-b829-156810fae20d--

# Get the number of MIME sub-parts.
numParts = mime.get_NumParts()

# The 1st part at index 0 is the application/xop+xml.  We're just going to extract the JPG and GIF image files..
sbFilename = Chilkat::CkStringBuilder.new()

i = 1
while i < numParts
    # mp is a CkMime
    mp = mime.GetPart(i)

    # By looking at the MIME above, the "name" attribute of the Content-Disposition header field seems
    # to be the only possible name we can use for each image..
    sbFilename.Append("qa_output/")
    name = mp.getHeaderFieldAttribute("Content-Disposition","name")
    sbFilename.Append(name)
    sbFilename.Append(".")
    sbFilename.Append(mp.contentType())
    numReplaced = sbFilename.Replace("image/","")
    mp.SaveBody(sbFilename.getAsString())
    print "output file: " + sbFilename.getAsString() + "\n";

    sbFilename.Clear()
    i = i + 1
end

print "Success." + "\n";