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mailer.py
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mailer.py
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import smtplib
import logging
import uuid
from time import time
from email.mime.text import MIMEText
from email.header import Header
from email import Utils
from urlparse import urljoin
from pylons.i18n.translation import _
from pylons import config, g
from ckan import model, __version__
import ckan.lib.helpers as h
import paste.deploy.converters
log = logging.getLogger(__name__)
class MailerException(Exception):
pass
def add_msg_niceties(recipient_name, body, sender_name, sender_url):
return _(u"Dear %s,") % recipient_name \
+ u"\r\n\r\n%s\r\n\r\n" % body \
+ u"--\r\n%s (%s)" % (sender_name, sender_url)
def _mail_recipient(recipient_name, recipient_email,
sender_name, sender_url, subject,
body, headers={}):
mail_from = config.get('smtp.mail_from')
body = add_msg_niceties(recipient_name, body, sender_name, sender_url)
msg = MIMEText(body.encode('utf-8'), 'plain', 'utf-8')
for k, v in headers.items(): msg[k] = v
subject = Header(subject.encode('utf-8'), 'utf-8')
msg['Subject'] = subject
msg['From'] = _("%s <%s>") % (sender_name, mail_from)
recipient = u"%s <%s>" % (recipient_name, recipient_email)
msg['To'] = Header(recipient, 'utf-8')
msg['Date'] = Utils.formatdate(time())
msg['X-Mailer'] = "CKAN %s" % __version__
# Send the email using Python's smtplib.
smtp_connection = smtplib.SMTP()
if 'smtp.test_server' in config:
# If 'smtp.test_server' is configured we assume we're running tests,
# and don't use the smtp.server, starttls, user, password etc. options.
smtp_server = config['smtp.test_server']
smtp_starttls = False
smtp_user = None
smtp_password = None
else:
smtp_server = config.get('smtp.server', 'localhost')
smtp_starttls = paste.deploy.converters.asbool(
config.get('smtp.starttls'))
smtp_user = config.get('smtp.user')
smtp_password = config.get('smtp.password')
smtp_connection.connect(smtp_server)
try:
#smtp_connection.set_debuglevel(True)
# Identify ourselves and prompt the server for supported features.
smtp_connection.ehlo()
# If 'smtp.starttls' is on in CKAN config, try to put the SMTP
# connection into TLS mode.
if smtp_starttls:
if smtp_connection.has_extn('STARTTLS'):
smtp_connection.starttls()
# Re-identify ourselves over TLS connection.
smtp_connection.ehlo()
else:
raise MailerException("SMTP server does not support STARTTLS")
# If 'smtp.user' is in CKAN config, try to login to SMTP server.
if smtp_user:
assert smtp_password, ("If smtp.user is configured then "
"smtp.password must be configured as well.")
smtp_connection.login(smtp_user, smtp_password)
smtp_connection.sendmail(mail_from, [recipient_email], msg.as_string())
log.info("Sent email to {0}".format(recipient_email))
except smtplib.SMTPException, e:
msg = '%r' % e
log.exception(msg)
raise MailerException(msg)
finally:
smtp_connection.quit()
def mail_recipient(recipient_name, recipient_email, subject,
body, headers={}):
return _mail_recipient(recipient_name, recipient_email,
g.site_title, g.site_url, subject, body, headers=headers)
def mail_user(recipient, subject, body, headers={}):
if (recipient.email is None) or not len(recipient.email):
raise MailerException(_("No recipient email address available!"))
mail_recipient(recipient.display_name, recipient.email, subject,
body, headers=headers)
RESET_LINK_MESSAGE = _(
'''You have requested your password on %(site_title)s to be reset.
Please click the following link to confirm this request:
%(reset_link)s
''')
def make_key():
return uuid.uuid4().hex[:10]
def create_reset_key(user):
user.reset_key = unicode(make_key())
model.repo.commit_and_remove()
def get_reset_link(user):
return urljoin(g.site_url,
h.url_for(controller='user',
action='perform_reset',
id=user.id,
key=user.reset_key))
def get_reset_link_body(user):
d = {
'reset_link': get_reset_link(user),
'site_title': g.site_title
}
return RESET_LINK_MESSAGE % d
def send_reset_link(user):
create_reset_key(user)
body = get_reset_link_body(user)
mail_user(user, _('Reset your password'), body)
def verify_reset_link(user, key):
if not key:
return False
if not user.reset_key or len(user.reset_key) < 5:
return False
return key.strip() == user.reset_key