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Name	Size	Permission	Date
sqlite3	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
custom.c	987 B	-rw-r--r--	2024-03-19 22:46
custom2.c	3.38 KB	-rw-r--r--	2024-03-19 22:46
custom3.c	4.52 KB	-rw-r--r--	2024-03-19 22:46
custom4.c	4.81 KB	-rw-r--r--	2024-03-19 22:46
dbpickle.py	2.8 KB	-rw-r--r--	2024-03-19 22:46
email-alternative.py	1.68 KB	-rw-r--r--	2024-03-19 22:46
email-dir.py	3 KB	-rw-r--r--	2024-03-19 22:46
email-headers.py	950 B	-rw-r--r--	2024-03-19 22:46
email-mime.py	930 B	-rw-r--r--	2024-03-19 22:46
email-read-alternative.py	2.84 KB	-rw-r--r--	2024-03-19 22:46
email-simple.py	585 B	-rw-r--r--	2024-03-19 22:46
email-unpack.py	1.55 KB	-rw-r--r--	2024-03-19 22:46
minidom-example.py	1.54 KB	-rw-r--r--	2024-03-19 22:46
mp_newtype.py	1.89 KB	-rw-r--r--	2024-03-19 22:46
mp_pool.py	3.8 KB	-rw-r--r--	2024-03-19 22:46
mp_workers.py	1.55 KB	-rw-r--r--	2024-03-19 22:46
run-func.c	1.94 KB	-rw-r--r--	2024-03-19 22:46
setup.py	329 B	-rw-r--r--	2024-03-19 22:46
sublist.c	1.55 KB	-rw-r--r--	2024-03-19 22:46
test.py	3.56 KB	-rw-r--r--	2024-03-19 22:46
turtle-star.py	155 B	-rw-r--r--	2024-03-19 22:46
typestruct.h	2.42 KB	-rw-r--r--	2024-03-19 22:46
tzinfo_examples.py	5.72 KB	-rw-r--r--	2024-03-19 22:46

Rename

import os
import sys
import tempfile
import mimetypes
import webbrowser

# Import the email modules we'll need
from email import policy
from email.parser import BytesParser

def magic_html_parser(html_text, partfiles):
    """Return safety-sanitized html linked to partfiles.

Rewrite the href="cid:...." attributes to point to the filenames in partfiles.
    Though not trivial, this should be possible using html.parser.
    """
    raise NotImplementedError("Add the magic needed")

# In a real program you'd get the filename from the arguments.
with open('outgoing.msg', 'rb') as fp:
    msg = BytesParser(policy=policy.default).parse(fp)

# Now the header items can be accessed as a dictionary, and any non-ASCII will
# be converted to unicode:
print('To:', msg['to'])
print('From:', msg['from'])
print('Subject:', msg['subject'])

# If we want to print a preview of the message content, we can extract whatever
# the least formatted payload is and print the first three lines.  Of course,
# if the message has no plain text part printing the first three lines of html
# is probably useless, but this is just a conceptual example.
simplest = msg.get_body(preferencelist=('plain', 'html'))
print()
print(''.join(simplest.get_content().splitlines(keepends=True)[:3]))

ans = input("View full message?")
if ans.lower()[0] == 'n':
    sys.exit()

# We can extract the richest alternative in order to display it:
richest = msg.get_body()
partfiles = {}
if richest['content-type'].maintype == 'text':
    if richest['content-type'].subtype == 'plain':
        for line in richest.get_content().splitlines():
            print(line)
        sys.exit()
    elif richest['content-type'].subtype == 'html':
        body = richest
    else:
        print("Don't know how to display {}".format(richest.get_content_type()))
        sys.exit()
elif richest['content-type'].content_type == 'multipart/related':
    body = richest.get_body(preferencelist=('html'))
    for part in richest.iter_attachments():
        fn = part.get_filename()
        if fn:
            extension = os.path.splitext(part.get_filename())[1]
        else:
            extension = mimetypes.guess_extension(part.get_content_type())
        with tempfile.NamedTemporaryFile(suffix=extension, delete=False) as f:
            f.write(part.get_content())
            # again strip the <> to go from email form of cid to html form.
            partfiles[part['content-id'][1:-1]] = f.name
else:
    print("Don't know how to display {}".format(richest.get_content_type()))
    sys.exit()
with tempfile.NamedTemporaryFile(mode='w', delete=False) as f:
    f.write(magic_html_parser(body.get_content(), partfiles))
webbrowser.open(f.name)
os.remove(f.name)
for fn in partfiles.values():
    os.remove(fn)

# Of course, there are lots of email messages that could break this simple
# minded program, but it will handle the most common ones.