I have a mbox file, with 200 emails, each with 4 attachments.
I want to extract those emails to a folder for each email, the name of the folder would be the title of the email, inside the folder a html file with the message, and all the attachments.
Is there a way to do that, using python, or a program?
This python-script worked for me: https://gist.github.com/georgy7/3a80bce2cd8bf2f9985c
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
Modified.
Original script source:
http://blog.marcbelmont.com/2012/10/script-to-extract-email-attachments.html
https://web.archive.org/web/20150312172727/http://blog.marcbelmont.com/2012/10/script-to-extract-email-attachments.html
Usage:
Run the script from a folder with file "all.mbox"
Attachments will be extracted into subfolder "attachments"
with prefix "m " where m is a message ID in mbox file.
Or
./extract_mbox_attachments.py -i first.mbox -o attachments1/
./extract_mbox_attachments.py -i second.mbox -o attachments2/
./extract_mbox_attachments.py --help
---------------
Please check the unpacked files
with an antivirus before opening them!
---------------
I make no representations or warranties of any kind concerning
the software, express, implied, statutory or otherwise,
including without limitation warranties of title, merchantability,
fitness for a particular purpose, non infringement, or the
absence of latent or other defects, accuracy, or the present or
absence of errors, whether or not discoverable, all to the
greatest extent permissible under applicable law.
import errno
import mailbox
import os
import pathlib # since Python 3.4
import re
import traceback
from email.header import decode_header
import argparse
import sys
def parse_options(args=[]):
parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-i', '--input', default='all.mbox', help='Input file')
parser.add_argument('-o', '--output', default='attachments/', help='Output folder')
parser.add_argument('--no-inline-images', action='store_true')
parser.add_argument('--start',
type=message_id_type, default=0,
help='On which message to start')
parser.add_argument('--stop',
type=message_id_type, default=100000000000,
help='On which message to stop, not included')
return parser.parse_args(args)
def message_id_type(arg):
try:
i = int(arg)
except ValueError as e:
raise argparse.ArgumentTypeError(str(e))
if i < 0:
raise argparse.ArgumentTypeError("Must be greater than or equal 0.")
return i
class Extractor:
def init(self, options):
self.__total = 0
self.__failed = 0
self.options = options
assert os.path.isfile(options.input)
self.mbox = mailbox.mbox(options.input)
if not os.path.exists(options.output):
os.makedirs(options.output)
self.inline_image_folder = os.path.join(options.output, 'inline_images/')
if (not options.no_inline_images) and (not os.path.exists(self.inline_image_folder)):
os.makedirs(self.inline_image_folder)
def increment_total(self):
self.__total += 1
def increment_failed(self):
self.__failed += 1
def get_total(self):
return self.__total
def get_failed(self):
return self.__failed
def to_file_path(save_to, name):
return os.path.join(save_to, name)
def get_extension(name):
extension = pathlib.Path(name).suffix
return extension if len(extension) <= 20 else ''
def resolve_name_conflicts(save_to, name, file_paths, attachment_number):
file_path = to_file_path(save_to, name)
START = 1
iteration_number = START
while os.path.normcase(file_path) in file_paths:
extension = get_extension(name)
iteration = '' if iteration_number <= START else ' (%s)' % iteration_number
new_name = '%s attachment %s%s%s' % (name, attachment_number, iteration, extension)
file_path = to_file_path(save_to, new_name)
iteration_number += 1
file_paths.append(os.path.normcase(file_path))
return file_path
Whitespaces: tab, carriage return, newline, vertical tab, form feed.
FORBIDDEN_WHITESPACE_IN_FILENAMES = re.compile('[\t\r\n\v\f]+')
OTHER_FORBIDDEN_FN_CHARACTERS = re.compile('[/\\\?%\*:\|"<>\0]')
def filter_fn_characters(s):
result = re.sub(FORBIDDEN_WHITESPACE_IN_FILENAMES, ' ', s)
result = re.sub(OTHER_FORBIDDEN_FN_CHARACTERS, '_', result)
return result
def decode_filename(part, fallback_filename, mid):
if part.get_filename() is None:
print('Filename is none: %s %s.' % (mid, fallback_filename))
return fallback_filename
else:
decoded_name = decode_header(part.get_filename())
if isinstance(decoded_name[0][0], str):
return decoded_name[0][0]
else:
try:
name_encoding = decoded_name[0][1]
return decoded_name[0][0].decode(name_encoding)
except:
print('Could not decode %s %s attachment name.' % (mid, fallback_filename))
return fallback_filename
def write_to_disk(part, file_path):
with open(file_path, 'wb') as f:
f.write(part.get_payload(decode=True))
def save(extractor, mid, part, attachments_counter, inline_image=False):
extractor.increment_total()
try:
if inline_image:
attachments_counter['inline_image'] += 1
attachment_number_string = 'ii' + str(attachments_counter['inline_image'])
destination_folder = extractor.inline_image_folder
else:
attachments_counter['value'] += 1
attachment_number_string = str(attachments_counter['value'])
destination_folder = extractor.options.output
filename = decode_filename(part, attachment_number_string, mid)
filename = filter_fn_characters(filename)
filename = '%s %s' % (mid, filename)
previous_file_paths = attachments_counter['file_paths']
try:
write_to_disk(part, resolve_name_conflicts(
destination_folder, filename,
previous_file_paths,
attachment_number_string))
except OSError as e:
if e.errno == errno.ENAMETOOLONG:
short_name = '%s %s%s' % (mid, attachment_number_string, get_extension(filename))
write_to_disk(part, resolve_name_conflicts(
destination_folder, short_name,
previous_file_paths,
attachment_number_string))
else:
raise
except:
traceback.print_exc()
extractor.increment_failed()
def check_part(extractor, mid, part, attachments_counter):
mime_type = part.get_content_type()
if part.is_multipart():
for p in part.get_payload():
check_part(extractor, mid, p, attachments_counter)
elif (part.get_content_disposition() == 'attachment')
or ((part.get_content_disposition() != 'inline') and (part.get_filename() is not None)):
save(extractor, mid, part, attachments_counter)
elif (mime_type.startswith('application/') and not mime_type == 'application/javascript')
or mime_type.startswith('model/')
or mime_type.startswith('audio/')
or mime_type.startswith('video/'):
message_id_content_type = 'Message id = %s, Content-type = %s.' % (mid, mime_type)
if part.get_content_disposition() == 'inline':
print('Extracting inline part... ' + message_id_content_type)
else:
print('Other Content-disposition... ' + message_id_content_type)
save(extractor, mid, part, attachments_counter)
elif (not extractor.options.no_inline_images) and mime_type.startswith('image/'):
save(extractor, mid, part, attachments_counter, True)
def process_message(extractor, mid):
msg = extractor.mbox.get_message(mid)
if msg.is_multipart():
attachments_counter = {
'value': 0,
'inline_image': 0,
'file_paths': []
}
for part in msg.get_payload():
check_part(extractor, mid, part, attachments_counter)
def extract_mbox_file(options):
extractor = Extractor(options)
print()
for i in range(options.start, options.stop):
try:
process_message(extractor, i)
except KeyError:
print('The whole mbox file was processed.')
break
if i % 1000 == 0:
print('Messages processed: {}'.format(i))
print()
print('Total files: %s' % extractor.get_total())
print('Failed: %s' % extractor.get_failed())
if name == "main":
extract_mbox_file(parse_options(sys.argv[1:]))
If you are confortable with python , sou can use , https://docs.python.org/3/library/mailbox.html .
