Cette fois, on a quelque chose de beaucoup plus utilisable : toutes les pièces jointes sont sauvées dans un dossier temporaire à définir, puis réintégrées dans le mail.
Le message texte brut et html sont supportés.
Le problème est que les images inclus dans le message HTML (disposant d'un Content-ID et sans nom de fichier) ne peuvent pas être embarquée de la même façon, et sont donc jointe comme des fichiers normaux.
(J'ai trouvé des exemples de code sur le net, mais les versions récentes des objets COM d'outlook ont l'air d'exposer moins de propriétés, en particulier l'attribut Fields de la classe Attachment, donc ça m'a l'air mort...
Un autre code passe par l'objet COM "MAPI.Session" mais comme Thunderbird est mon client mail par défaut, forcément ça ne marche pas.)
Deuxième problème, le titre du message n'est pas décodé, et je n'ai pas trouvé encore de solution. Ce n'est pas grave si le message doit aller à l'extérieur, car les destinataire verront le titre correcte, mais c'est gênant lorsque le mail restera sur la messagerie interne.
# (c)2009 David SPORN
#
# A brain-dead Python SMTP to MAPI relay server based on the smtps, smtplib and mapi
# packages.
#
# DISCLAIMER
# You are free to use this code in any way you like, subject to the
# Python disclaimers & copyrights. I make no representations about the
# suitability of this software for any purpose. It is provided "AS-IS"
# without warranty of any kind, either express or implied. So there.
#
# Sources
# http://code.activestate.com/recipes/149461/
# http://www.outlookcode.com/d/code/htmlimg.htm
# smtps.py
"""
smtp2mapi.py -- A very simple & dumb Python SMTP to MAPI relay server. It uses
smtps for the server side and MAPI for the client side. This is
intended for use as a proxy to an Exchange server that is restricted to MAPI
(e.g. for 'security purpose').
This blocks, waiting for RFC821 messages from clients on the given
port. When a complete SMTP message is received, it connect to the
Exchange server using the Outlook OLE component, convert the
message and send it. Obviously, Outlook must be present.
All processing is single threaded. It generally handles errors
badly. It fails especially badly if DNS or the resolved mail host
hangs. DNS or mailhost failures are not propagated back to the client,
which is bad news.
The mail address 'shutdown@shutdown.now' is interpreted
specially. This gets around a Python 1.5/Windows/WINSOCK bug that
prevents this script from being interrupted.
"""
import os
import sys
import errno
import mimetypes
import smtps
import string
import smtplib
import email
import StringIO
#http://www.developpez.net/forums/d676074/autres-langages/pyt(...)
import win32com.client.dynamic
import win32com.client
from win32com.gen_py import *
import win32com.gen_py
import re
import marshal
import pickle
from email.feedparser import FeedParser
#Default Mapi profile
DEFAULT_MAPI_PROFILE = "Outlook"
TEMPORARY_FULL_PATH = 'C:\\dsporn\\software\\smtp\\tmp\\'
#
#
# This extends the smtps.SMTPServerInterface and specializes it to
# proxy requests onwards. It uses DNS to resolve each RCPT TO:
# address, then uses smtplib to forward the client mail on the
# resolved mailhost.
#
class SMTPService(smtps.SMTPServerInterface):
def initMapi(self):
self.outlook = win32com.client.dynamic.Dispatch("Outlook.Application")
self.mapi = self.outlook.GetNamespace("MAPI")
self.mapi_session = self.mapi.Logon(DEFAULT_MAPI_PROFILE)
def quitMapi(self):
self.mapi.Logoff()
self.mapi = None
def __init__(self):
self.savedTo = []
self.savedMailFrom = ''
self.shutdown = 0
self.initMapi()
def mailFrom(self, args):
# Stash who its from for later
self.savedMailFrom = smtps.stripAddress(args)
def rcptTo(self, args):
# Stashes multiple RCPT TO: addresses
self.savedTo.append(args)
def data(self, args):
data = args
#check for shutdown command
for addressee in self.savedTo:
toHost, toFull = smtps.splitTo(addressee)
# Treat this TO address speciallt. All because of a
# WINSOCK bug!
if toFull == 'shutdown@shutdown.now':
self.shutdown = 1
return
#sys.stdout.write('Adding recipient ' + toFull + '...\n\r')
#recipients.Add(toFull)
#
#
message = self.outlook.CreateItem(0)
#
#data parsing...
e_mail = self.getEmailMessage(data)
#header = self.getMessageRawHeader(args)
subject=e_mail['Subject']
dest_to = e_mail['To']
dest_cc = e_mail['Cc']
dest_bcc = e_mail['Bcc']
#
#recipientprocessing
recipients = message.Recipients
if (None != dest_to):
#print "To :\n\r"+dest_to
self.appendRecipient(recipients, dest_to, 1)
if (None != dest_cc):
#print "CC :\n\r"+dest_cc
self.appendRecipient(recipients, dest_cc, 2)
if (None != dest_bcc):
#print "BCC :\n\r"+dest_bcc
self.appendRecipient(recipients, dest_bcc, 3)
#
#subject processing
if (None != subject):
message.Subject = subject
else:
message.Subject = ""
#
#message processing
if (e_mail.is_multipart()):
#attachements = message.Attachements
#attache each textual parts to the messsage
the_body = ""
counter = 1
has_body = False
has_html_body = False
the_html_body = ""
for part in e_mail.walk():
if part.get_content_maintype() == 'multipart':
continue
filename = part.get_filename()
save_part = True
has_content_id = False
the_content_id = ""
#
# handle part that have no filename : it might
# be the content of the message body and inlined pictures...
if not filename:
#
# is it the plain text message body ?
if (False == has_body) and (part.get_content_type() == 'text/plain'):
the_body = part.get_payload(decode=True)
has_body = True
save_part = False
#
# is it the html text message body ?
elif (False == has_html_body) and (part.get_content_type() == 'text/html'):
the_html_body = part.get_payload(decode=True)
has_html_body = True
save_part = False
#
# maybe some media files (or something else)
else:
#
# Retrieve the content id if any
#
# Seems to be useless, as the com object seems to not
# expose the Fields attribute of the Attachment class...
if (None != part.has_key('Content-ID')):
has_content_id = True
the_content_id = self.getStripedContentId(part['Content-ID'])
#
# Guess extension
ext = mimetypes.guess_extension(part.get_content_type())
if not ext:
# Use a generic bag-of-bits extension
ext = '.bin'
filename = 'part-%03d%s' % (counter, ext)
if (save_part):
sys.stdout.write('Save part ['+filename+']...\n\r')
fp = open(os.path.join('.\\tmp', filename), 'wb')
fp.write(part.get_payload(decode=True))
fp.close()
attached_file = message.Attachments.Add(TEMPORARY_FULL_PATH+filename)
counter += 1
message.Body = the_body
if (has_html_body):
message.HTMLBody = the_html_body
else:
message.Body = e_mail.get_payload(decode=True)
sys.stdout.write('Sending message...\n\r')
message.Send()
self.savedTo = []
def quit(self, args):
if self.shutdown:
print 'Shutdown at user request\n\r'
sys.exit(0)
def getEmailMessage(self, data):
"""
instanciate a email.Message from the source data
"""
parser = FeedParser()
parser.feed(data)
return parser.close()
def appendRecipient(self, recipientObject, dataList, recipientType):
"""
split dataList and add items to recipientObject
"""
for dest in dataList.split(','):
dest = dest.strip()
recipient = recipientObject.Add(dest.strip())
recipient.Type = recipientType
def getStripedContentId(self, data):
hstart = string.find(data, '<')
if hstart != -1:
rv = data[hstart+1:]
else:
rv = data[:]
hend = string.find(rv, '>')
if hend != -1:
rv = rv[:hend]
else:
rv = rv[:]
return rv
def Usage():
print """Usage pyspy.py port
Where:
port = Client SMTP Port number (ie 25)"""
sys.exit(1)
if __name__ == '__main__':
if len(sys.argv) != 2:
Usage()
port = int(sys.argv[1])
service = SMTPService()
server = smtps.SMTPServer(port)
print 'Python SMTP to MAPI Relay Ready. (c)2009 David SPORN\n\r'
server.serve(service)
# 3eme version
Posté par David Sporn . En réponse au message Un prototype de relais SMTP vers MAPI en python. Évalué à 1.