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merge notification-config -> trunk, previous commits 695, 751 (email debugging inform...
[osqa.git] / forum / utils / mail.py
1 import email
2 import socket
3 import os
4 import logging
5
6 try:
7     from email.mime.multipart import MIMEMultipart
8     from email.mime.text import MIMEText
9     from email.mime.image import MIMEImage
10     from email.header import Header
11 except:
12     from email.MIMEMultipart import MIMEMultipart
13     from email.MIMEText import MIMEText
14     from email.MIMEImage import MIMEImage
15     from email.Header import Header
16
17 from django.core.mail import DNS_NAME
18 from smtplib import SMTP
19 from forum import settings
20 from django.template import loader, Context, Template
21 from forum.utils.html import sanitize_html
22 from forum.context import application_settings
23 from forum.utils.html2text import HTML2Text
24 from threading import Thread
25
26 def send_template_email(recipients, template, context):
27     t = loader.get_template(template)
28     context.update(dict(recipients=recipients, settings=settings))
29     t.render(Context(context))
30
31 def create_and_send_mail_messages(messages):
32     if not settings.EMAIL_HOST:
33         return
34
35     sender = Header(unicode(settings.APP_SHORT_NAME), 'utf-8')
36     sender.append('<%s>' % unicode(settings.DEFAULT_FROM_EMAIL))
37     sender = u'%s <%s>' % (unicode(settings.APP_SHORT_NAME), unicode(settings.DEFAULT_FROM_EMAIL))
38
39     try:
40         connection = SMTP(str(settings.EMAIL_HOST), str(settings.EMAIL_PORT),
41                           local_hostname=DNS_NAME.get_fqdn())
42
43         if (bool(settings.EMAIL_USE_TLS)):
44             connection.ehlo()
45             connection.starttls()
46             connection.ehlo()
47
48         if settings.EMAIL_HOST_USER and settings.EMAIL_HOST_PASSWORD:
49             connection.login(str(settings.EMAIL_HOST_USER), str(settings.EMAIL_HOST_PASSWORD))
50
51         if sender is None:
52             sender = str(settings.DEFAULT_FROM_EMAIL)
53
54         for recipient, subject, html, text, media in messages:
55             msgRoot = MIMEMultipart('related')
56
57             msgRoot['Subject'] = Header(subject, 'utf-8')
58             msgRoot['From'] = sender
59
60             to = Header(recipient.username, 'utf-8')
61             to.append('<%s>' % recipient.email)
62             msgRoot['To'] = to
63
64             msgRoot.preamble = 'This is a multi-part message from %s.' % unicode(settings.APP_SHORT_NAME).encode('utf8')
65
66             msgAlternative = MIMEMultipart('alternative')
67             msgRoot.attach(msgAlternative)
68
69             msgAlternative.attach(MIMEText(text.encode('utf-8'), _charset='utf-8'))
70             msgAlternative.attach(MIMEText(html.encode('utf-8'), 'html', _charset='utf-8'))
71
72             for alias, location in media.items():
73                 fp = open(location, 'rb')
74                 msgImage = MIMEImage(fp.read())
75                 fp.close()
76                 msgImage.add_header('Content-ID', '<'+alias+'>')
77                 msgRoot.attach(msgImage)
78
79             try:
80                 connection.sendmail(sender, [recipient.email], msgRoot.as_string())
81             except Exception, e:
82                 logging.error("Couldn't send mail using the sendmail method: %s" % e)
83
84         try:
85             connection.quit()
86         except socket.sslerror:
87             connection.close()
88     except Exception, e:
89         logging.error('Email sending has failed: %s' % e)