(CkPython) Parse MIME to get Binary Data (such as GIF, JPG, or any binary file)

Demonstrates how to parse a MIME to get binary data. This example extracts the image data for a GIF image to an in-memory byte array, and also to a file.

This example uses a MIME test file located at http://www.chilkatsoft.com/testData/sampleMime2.txt. It contains the following MIME:

Content-Type: multipart/mixed;
 boundary="------------080707010302060306060800";

This is a multi-part message in MIME format.

--------------080707010302060306060800
Content-Type: text/plain
Content-Transfer-Encoding: 7bit

This is the plain-text body.
--------------080707010302060306060800
Content-Disposition: attachment; filename="starfish.gif";
Content-Transfer-Encoding: base64
Content-Type: image/gif; name="starfish.gif";

R0lGODlhIAAgAPcAAP///+/v7/f39+/n5/fv7//39/fn597OzufW1tbGxs69vffe3u/W1salpZQQ
EIQYEJwQCJQYCJwYCM6clL2Ee5wpGIwhEK0YANatpdalnHMYCKUhCJQYAKUYAM6Ec5QhCJwhCPfW
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--------------080707010302060306060800--

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

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

mime = chilkat.CkMime()

# Load the sampleMime2.txt file into the MIME object.
# (This file is available at https://www.chilkatsoft.com/testData/sampleMime2.txt )

success = mime.LoadMimeFile("sampleMime2.txt")
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

# The GIF image is the 2nd sub-part located directly under the
# top-level MIME node.  Indexing begins at 0, therefore the 2nd
# sub-part is at index 1.
# part2 is a CkMime
part2 = mime.GetPart(1)

binaryData = chilkat.CkByteData()

# The GetBodyBinary method returns the binary bytes
# of the part's body, automatically decoded from whatever
# content-transfer-encoding might be used (such as base64).
success = part2.GetBodyBinary(binaryData)

# We now have the binary bytes of the GIF image in binaryData.
# Save it to a file.
fac = chilkat.CkFileAccess()
success = fac.WriteEntireFile("out1.gif",binaryData)
if (success != True):
    print(fac.lastErrorText())
    sys.exit()

# An easier way to save the body content to a file,
# assuming your application does not need to access
# the binary data in-memory, is to call SaveBody
success = part2.SaveBody("out2.gif")
if (success == False):
    print(part2.lastErrorText())
    sys.exit()

print("Finished.")