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[feat] SMTP server to send MMS

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Alex 2021-05-11 16:52:27 +02:00
parent 06a5e82867
commit cc30d69912
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47
README.md
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@ -1,24 +1,29 @@
# mms2mail
Convert mmsd MMS file to mbox.
Mail bridge for mmsd.
mms2mail can convert mms in batch mode, or wait for new mms via a dbus signal
sent by mmsd.
By default it store them in the current user mbox (```/var/mail/$USER```)
in case the mbox is locked by another process the output could be found in :
```$HOME/.mms/failsafembox```
mms2mail:
* convert incoming mms from mmsd to mail and store it in unix mbox.
* provide a smtp server converting mail to mms with mmsd.
By default:
* store mails in the current user mbox (```/var/mail/$USER```)
* in case the mbox is locked by another process the output could be found in ```$HOME/.mms/failsafembox```
* listen on localhost port 2525 for mail
## installation
### dependency
- python3
- python3-aiosmtpd
- python-messaging (pip install python-messaging)
### setup
Install the dependency and mms2mail:
Install the dependency and mms2mail (on debian based distribution):
```
sudo apt-get install python3
sudo apt-get install python3-aiosmtpd
pip install --user python-messaging
mkdir -p ~/.local/bin
@ -42,22 +47,38 @@ mailbox = /var/mail/$USER ; the mailbox where mms are appended
user = $USER ; the user account specified as recipient
domain = $HOSTNAME ; the domain part appended to phone number and user
attach_mms = false ; whether to attach the full mms binary file
[smtp]
hostname = localhost
port = 2525
```
## usage
### reference
```
mms2mail [-h] [-d | -f FILES [FILES ...]] [--delete] [--force-read]
[--force-unlock] [-l {critical,error,warning,info,debug}]
mms2mail [-h] [-d | -f FILES [FILES ...]] [--disable-smtp] [--disable-mms-delivery] [--delete] [--force-read] [--force-unlock] [-l {critical,error,warning,info,debug}]
optional arguments:
-h, --help show this help message and exit
-d, --daemon Use dbus signal from mmsd to trigger conversion
-d, --daemon start in daemon mode
-f FILES [FILES ...], --file FILES [FILES ...]
Parse specified mms files and quit
Start in batch mode, parse specified mms files
--disable-smtp
--disable-mms-delivery
--delete Ask mmsd to delete the converted MMS
--force-read Force conversion even if MMS is marked as read
--force-unlock BEWARE COULD LEAD TO WHOLE MBOX CORRUPTION Force unlocking the
mbox after a few minutes /!\
--force-unlock BEWARE COULD LEAD TO WHOLE MBOX CORRUPTION Force unlocking the mbox after a few minutes /!\
-l {critical,error,warning,info,debug}, --logging {critical,error,warning,info,debug}
Define the logger output level
```
### Using with Mutt :
To be able to send mms with mutt you need it to be built with SMTP support.
And and the following line in your ```$HOME/.muttrc```:
```
set smtp_url = "smtp://localhost:2525"
set ssl_starttls = no
set ssl_force_tls = no
```

11
TODO.md Normal file
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@ -0,0 +1,11 @@
# mms2mail
## To Do
* Convert all previously received mms on start
* HTML message
* mms2mail : add as HTML body, currently added as attachments
* mail2mms : convert to text plain in case of html only mail
* A lot of other things...

241
mms2mail
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@ -17,45 +17,66 @@ from gi.repository import GLib
import dbus
import dbus.mainloop.glib
import os
import re
import tempfile
from aiosmtpd.controller import Controller
from email import parser
log = logging.getLogger(__name__)
class Config:
"""Allow sharing configuration between classes."""
def __init__(self):
"""Return the config instance."""
self.config = configparser.ConfigParser()
self.config.read(f"{Path.home()}/.mms/modemmanager/mms2mail.ini")
def get_config(self):
"""Return the config element.
:rtype ConfigParser
:return The parsed configuration
"""
return self.config
class MMS2Mail:
"""
The class handling the conversion between MMS and mail format.
MMS support is provided by python-messaging
Mail support is provided by marrow.mailer
"""
def __init__(self, delete=False, force_read=False,
def __init__(self, config, delete=False, force_read=False,
force_unlock=False):
"""
Return class instance.
:param config: The module configuration file
:type config: ConfigParser
:param delete: delete MMS after conversion
:type delete: bool
:param force_read: force converting an already read MMS (batch mode)
:type force_read: bool
:param disable_dbus: Disable sending dbus commands to mmsd (batch mode)
:type disable_dbus: bool
:param force_unlock: Force mbox unlocking after a few minutes
:type force_unlock: bool
"""
self.delete = delete
self.force_read = force_read
self.force_unlock = force_unlock
self.config = configparser.ConfigParser()
self.config.read(f"{Path.home()}/.mms/modemmanager/mms2mail.ini")
self.attach_mms = self.config.getboolean('mail', 'attach_mms',
cfg = config.get_config()
self.attach_mms = cfg.getboolean('mail', 'attach_mms',
fallback=False)
self.domain = self.config.get('mail', 'domain',
self.domain = cfg.get('mail', 'domain',
fallback=socket.getfqdn())
self.user = self.config.get('mail', 'user', fallback=getpass.getuser())
mbox_file = self.config.get('mail', 'mailbox',
self.user = cfg.get('mail', 'user', fallback=getpass.getuser())
mbox_file = cfg.get('mail', 'mailbox',
fallback=f"/var/mail/{self.user}")
self.mailbox = mailbox.mbox(mbox_file)
self.dbus = None
@ -178,7 +199,8 @@ class MMS2Mail:
maintype, subtype = datacontent[0].split('/', 1)
if 'text/plain' in datacontent[0]:
encoding = datacontent[1].get('Charset', 'utf-8')
body += data_part.data.decode(encoding) + '\n'
body += data_part.data.decode(encoding,
errors='replace') + '\n'
continue
extension = str(mimetypes.guess_extension(datacontent[0]))
filename = datacontent[1].get('Name', str(data_id))
@ -246,6 +268,103 @@ class MMS2Mail:
self.dbus.delete_mms(dbus_path)
class Mail2MMSHandler:
"""The class handling the conversion between mail and MMS format."""
def __init__(self, dbusmmsd):
"""
Return the Mail2MMS instance.
:param dbusmmsd: The DBus MMSd abstraction class
:type dbusmmsd: DbusMMSd()
:param config: The module configuration file
:type config: ConfigParser
"""
self.parser = parser.BytesParser()
self.pattern = re.compile('^\+[0-9]+$')
self.dbusmmsd = dbusmmsd
mmsd_config = dbusmmsd.get_manager_config()
self.auto_create_smil = mmsd_config.get('AutoCreateSMIL', False)
self.max_attachments = mmsd_config.get('MaxAttachments', 25)
self.total_max_attachment_size = mmsd_config.get(
'TotalMaxAttachmentSize',
1100000)
self.use_delivery_reports = mmsd_config.get('UseDeliveryReports',
False)
async def handle_DATA(self, server, session, envelope):
"""
Handle the reception of a new mail via smtp.
:param server: The SMTP server instance
:type server: SMTP
:param session: The session instance currently being handled
:type session: Session
:param envelope: The envelope instance of the current SMTP Transaction
:type envelope: Envelope
"""
recipients = []
attachments = []
smil = None
for r in envelope.rcpt_tos:
number = r.split('@')[0]
if self.pattern.search(number):
log.debug(f'Add recipient number : {number}')
recipients.append(number)
else:
log.debug(f'Ignoring recipient : {r}')
if len(recipients) == 0:
log.info('No sms recipient')
return '553 Requested action not taken: mailbox name not allowed'
mail = self.parser.parsebytes(envelope.content)
cid = 1
total_size = 0
with tempfile.TemporaryDirectory(prefix='mailtomms-') as tmp_dir:
for part in mail.walk():
content_type = part.get_content_type()
if 'multipart' in content_type:
continue
filename = part.get_filename()
if not filename:
ext = mimetypes.guess_extension(part.get_content_type())
if not ext:
# Use a generic bag-of-bits extension
ext = '.bin'
filename = f'part-{cid:03d}{ext}'
if filename == 'smil.xml':
smil = part.get_payload(decode=True)
continue
path = os.path.join(tmp_dir, filename)
if content_type == 'text/plain':
with open(path, 'wt', encoding='utf-8') as af:
charset = part.get_content_charset(failobj='utf-8')
total_size += af.write(part.
get_payload(decode=True).
decode(charset))
else:
with open(path, 'wb') as af:
total_size += af.write(part.
get_payload(decode=True))
attachments.append((f"cid-{cid}", content_type, path))
cid += 1
if len(attachments) == 0:
return '550 No attachments found'
elif len(attachments) > self.max_attachments:
return '550 Too much attachments'
elif total_size > self.total_max_attachment_size:
return '554 5.3.4 Message too big for system'
try:
self.dbusmmsd.send_mms(recipients, attachments, smil)
except dbus.exceptions.DBusException as e:
log.error(e)
return '421 mmsd service not available'
return '250 OK'
class DbusMMSd():
"""Use DBus communication with mmsd."""
@ -297,6 +416,69 @@ class DbusMMSd():
log.debug(f"Deleting MMS {dbus_path}")
message.Delete()
def get_service(self):
"""
Get mmsd Service Interface.
:return the mmsd service
:rtype dbus.Interface
"""
manager = dbus.Interface(self.bus.get_object('org.ofono.mms',
'/org/ofono/mms'),
'org.ofono.mms.Manager')
services = manager.GetServices()
path = services[0][0]
service = dbus.Interface(self.bus.get_object('org.ofono.mms', path),
'org.ofono.mms.Service')
return service
def get_manager_config(self):
"""
Ask mmsd its properties.
:return the mmsd manager service properties
:rtype dict
"""
service = self.get_service()
return service.GetProperties()
def send_mms(self, recipients, attachments, smil=None):
"""
Ask mmsd to send a MMS.
:param recipients: The mms recipients phone numbers
:type recipients: Array(str)
:param attachments: The mms attachments [name, mime type, filepath]
:type attachments: Array(str,str,str)
:param smil: The Smil.xml content allowing MMS customization
:type smil: str
"""
service = self.get_service()
mms_recipients = dbus.Array([], signature=dbus.Signature('s'))
for r in recipients:
mms_recipients.append(dbus.String(r))
if smil:
log.debug("Send MMS as Related")
mms_smil = dbus.String(smil)
else:
log.debug("Send MMS as Mixed")
mms_smil = ""
mms_attachments = dbus.Array([], signature=dbus.Signature('(sss)'))
for a in attachments:
log.debug("Attachment: ({})".format(a))
mms_attachments.append(dbus.Struct((dbus.String(a[0]),
dbus.String(a[1]),
dbus.String(a[2])
), signature=None))
path = service.SendMessage(mms_recipients, mms_smil, mms_attachments)
log.debug(path)
def add_signal_receiver(self):
"""Add a signal receiver to the current bus."""
if self.mms2mail:
@ -326,10 +508,15 @@ def main():
parser = argparse.ArgumentParser()
mode = parser.add_mutually_exclusive_group()
mode.add_argument("-d", "--daemon",
help="Use dbus signal from mmsd to trigger conversion",
action='store_true', dest='watcher')
help="start in daemon mode ",
action='store_true', dest='daemon')
mode.add_argument("-f", "--file", nargs='+',
help="Parse specified mms files and quit", dest='files')
help="Start in batch mode, parse specified mms files",
dest='files')
parser.add_argument('--disable-smtp', action='store_true',
dest='disable_smtp')
parser.add_argument('--disable-mms-delivery', action='store_true',
dest='disable_mms_delivery')
parser.add_argument('--delete', action='store_true', dest='delete',
help="Ask mmsd to delete the converted MMS")
parser.add_argument('--force-read', action='store_true',
@ -356,8 +543,20 @@ def main():
ch.setFormatter(formatter)
log.addHandler(ch)
c = Config()
d = DbusMMSd()
m = MMS2Mail(delete=args.delete, force_read=args.force_read,
h = Mail2MMSHandler(dbusmmsd=d)
controller = Controller(h,
hostname=c.get_config().get('smtp', 'hostname',
fallback='localhost'),
port=c.get_config().get('smtp', 'port',
fallback=2525))
m = MMS2Mail(config=c,
delete=args.delete,
force_read=args.force_read,
force_unlock=args.force_unlock)
m.set_dbus(d)
@ -365,13 +564,21 @@ def main():
for mms_file in args.files:
m.convert(path=mms_file)
return
elif args.watcher:
elif args.daemon:
log.info("Starting mms2mail in daemon mode")
if not args.disable_smtp:
log.info("Activating smtp to mmsd server")
controller.start()
if not args.disable_mms_delivery:
log.info("Activating mms to mbox server")
d.set_mms2mail(m)
d.add_signal_receiver()
else:
parser.print_help()
return
d.run()
controller.stop()
if __name__ == '__main__':

4
mms2mail.ini
View file

@ -3,3 +3,7 @@ mailbox = /var/mail/mobian
account = mobian
domain = mobian.lan
attach_mms = false
[smtp]
hostname = localhost
port = 2525