Recursively Descend MIME Message Structure

Python script demonstrating how to recursively descend through the nesting of a MIME message. A complex MIME message is created by first downloading and converting a web page into an email, then adding a plain-text alternative body, then adding file attachments, and finally accessing the email as a MIME object to be examined.

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# file: mimeTraverse.py
# -*- coding: windows-1252 -*-
# (Python MIME parsing and building example script.)

import chilkat 

def traverseMime(mime, level):

	line = ""
		
	for i in range(level):
		line = line + "----"
	
	line = line + mime.contentType()
		
	print line
		
	n = mime.get_NumParts()
	for i in range(n):
		part = mime.GetPart(i)
		traverseMime(part,level+1)


# This example builds a complex email:
# -- one that has both plain-text and HTML alternative bodies.
# -- the HTML has embedded images
# -- there are multiple attachments.
# We then examine the MIME structure using Chilkat MIME.
		
# First, we'll need the email component unlocked...
mailman = chilkat.CkMailMan()
mailman.UnlockComponent("anything for 30-day trial")

# We'll convert a web page into an email with embedded
# images.
mht = chilkat.CkMht()
mht.UnlockComponent("anything for 30-day trial")
		
# Our URL was picked at random...
email = mht.GetEmail("http://www.masukolandscaping.com/")
		
# Add a plain-text alternative body.
email.AddPlainTextAlternativeBody("this is the plain-text alternative...")
		
# Add a few file attachments:
strContentType = chilkat.CkString()
# AddFileAttachment returns the auto-selected content-type in strContentType
email.AddFileAttachment("images/dudePython.gif",strContentType)
email.AddFileAttachment("blah.txt",strContentType)
		
# Now we have a complex email.  Get it as a MIME object and examine
# the structure...
mime = chilkat.CkMime()
mime.UnlockComponent("anything for 30-day trial")
		
mime = email.GetMimeObject();	
mime.SaveMime("e.eml")
		
traverseMime(mime,0)
		
# Prints this:

# multipart/mixed
# ----multipart/related
# --------multipart/alternative
# ------------text/plain
# ------------text/html
# --------image/gif
# --------image/gif
# --------image/gif
# --------image/gif
# --------image/gif
# --------image/gif
# --------image/jpeg
# --------image/gif
# --------image/gif
# --------image/gif
# --------image/gif
# --------image/gif
# ----image/gif
# ----text/plain