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"""
Tools for sending email.
"""
from __future__ import unicode_literals
from django.conf import settings
# Imported for backwards compatibility and for the sake
# of a cleaner namespace. These symbols used to be in
# django/core/mail.py before the introduction of email
# backends and the subsequent reorganization (See #10355)
from django.core.mail.message import (
DEFAULT_ATTACHMENT_MIME_TYPE, BadHeaderError, EmailMessage,
EmailMultiAlternatives, SafeMIMEMultipart, SafeMIMEText,
forbid_multi_line_headers, make_msgid,
)
from django.core.mail.utils import DNS_NAME, CachedDnsName
from django.utils.module_loading import import_string
__all__ = [
'CachedDnsName', 'DNS_NAME', 'EmailMessage', 'EmailMultiAlternatives',
'SafeMIMEText', 'SafeMIMEMultipart', 'DEFAULT_ATTACHMENT_MIME_TYPE',
'make_msgid', 'BadHeaderError', 'forbid_multi_line_headers',
'get_connection', 'send_mail', 'send_mass_mail', 'mail_admins',
'mail_managers',
]
def get_connection(backend=None, fail_silently=False, **kwds):
"""Load an email backend and return an instance of it.
If backend is None (default) settings.EMAIL_BACKEND is used.
Both fail_silently and other keyword arguments are used in the
constructor of the backend.
"""
klass = import_string(backend or settings.EMAIL_BACKEND)
return klass(fail_silently=fail_silently, **kwds)
def send_mail(subject, message, from_email, recipient_list,
fail_silently=False, auth_user=None, auth_password=None,
connection=None, html_message=None):
"""
Easy wrapper for sending a single message to a recipient list. All members
of the recipient list will see the other recipients in the 'To' field.
If auth_user is None, the EMAIL_HOST_USER setting is used.
If auth_password is None, the EMAIL_HOST_PASSWORD setting is used.
Note: The API for this method is frozen. New code wanting to extend the
functionality should use the EmailMessage class directly.
"""
connection = connection or get_connection(
username=auth_user,
password=auth_password,
fail_silently=fail_silently,
)
mail = EmailMultiAlternatives(subject, message, from_email, recipient_list, connection=connection)
if html_message:
mail.attach_alternative(html_message, 'text/html')
return mail.send()
def send_mass_mail(datatuple, fail_silently=False, auth_user=None,
auth_password=None, connection=None):
"""
Given a datatuple of (subject, message, from_email, recipient_list), sends
each message to each recipient list. Returns the number of emails sent.
If from_email is None, the DEFAULT_FROM_EMAIL setting is used.
If auth_user and auth_password are set, they're used to log in.
If auth_user is None, the EMAIL_HOST_USER setting is used.
If auth_password is None, the EMAIL_HOST_PASSWORD setting is used.
Note: The API for this method is frozen. New code wanting to extend the
functionality should use the EmailMessage class directly.
"""
connection = connection or get_connection(
username=auth_user,
password=auth_password,
fail_silently=fail_silently,
)
messages = [
EmailMessage(subject, message, sender, recipient, connection=connection)
for subject, message, sender, recipient in datatuple
]
return connection.send_messages(messages)
def mail_admins(subject, message, fail_silently=False, connection=None,
html_message=None):
"""Sends a message to the admins, as defined by the ADMINS setting."""
if not settings.ADMINS:
return
mail = EmailMultiAlternatives(
'%s%s' % (settings.EMAIL_SUBJECT_PREFIX, subject), message,
settings.SERVER_EMAIL, [a[1] for a in settings.ADMINS],
connection=connection,
)
if html_message:
mail.attach_alternative(html_message, 'text/html')
mail.send(fail_silently=fail_silently)
def mail_managers(subject, message, fail_silently=False, connection=None,
html_message=None):
"""Sends a message to the managers, as defined by the MANAGERS setting."""
if not settings.MANAGERS:
return
mail = EmailMultiAlternatives(
'%s%s' % (settings.EMAIL_SUBJECT_PREFIX, subject), message,
settings.SERVER_EMAIL, [a[1] for a in settings.MANAGERS],
connection=connection,
)
if html_message:
mail.attach_alternative(html_message, 'text/html')
mail.send(fail_silently=fail_silently)
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