mirror of
https://github.com/pacnpal/django-anymail.git
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84 lines
3.3 KiB
Python
84 lines
3.3 KiB
Python
from email.mime.image import MIMEImage
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from django.core.mail import EmailMessage, EmailMultiAlternatives, make_msgid
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from .utils import UNSET
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class AnymailMessageMixin(object):
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"""Mixin for EmailMessage that exposes Anymail features.
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Use of this mixin is optional. You can always just set Anymail
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attributes on any EmailMessage.
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(The mixin can be helpful with type checkers and other development
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tools that complain about accessing Anymail's added attributes
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on a regular EmailMessage.)
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"""
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def __init__(self, *args, **kwargs):
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self.esp_extra = kwargs.pop('esp_extra', UNSET)
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self.metadata = kwargs.pop('metadata', UNSET)
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self.send_at = kwargs.pop('send_at', UNSET)
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self.tags = kwargs.pop('tags', UNSET)
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self.track_clicks = kwargs.pop('track_clicks', UNSET)
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self.track_opens = kwargs.pop('track_opens', UNSET)
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self.anymail_status = None
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# noinspection PyArgumentList
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super(AnymailMessageMixin, self).__init__(*args, **kwargs)
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def attach_inline_image(self, content, subtype=None, idstring="img", domain=None):
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"""Add inline image and return its content id"""
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assert isinstance(self, EmailMessage)
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return attach_inline_image(self, content, subtype, idstring, domain)
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class AnymailMessage(AnymailMessageMixin, EmailMultiAlternatives):
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pass
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def attach_inline_image(message, content, subtype=None, idstring="img", domain=None):
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"""Add inline image to an EmailMessage, and return its content id"""
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cid = make_msgid(idstring, domain) # Content ID per RFC 2045 section 7 (with <...>)
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image = MIMEImage(content, subtype)
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image.add_header('Content-ID', cid)
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message.attach(image)
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return cid[1:-1] # Without <...>, for use as the <img> tag src
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ANYMAIL_STATUSES = [
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'sent', # the ESP has sent the message (though it may or may not get delivered)
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'queued', # the ESP will try to send the message later
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'invalid', # the recipient email was not valid
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'rejected', # the recipient is blacklisted
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'failed', # the attempt to send failed for some other reason
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'unknown', # anything else
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]
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class AnymailRecipientStatus(object):
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"""Information about an EmailMessage's send status for a single recipient"""
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def __init__(self, message_id, status):
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self.message_id = message_id # ESP message id
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self.status = status # one of ANYMAIL_STATUSES, or None for not yet sent to ESP
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class AnymailStatus(object):
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"""Information about an EmailMessage's send status for all recipients"""
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def __init__(self):
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self.message_id = None # set of ESP message ids across all recipients, or bare id if only one, or None
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self.status = None # set of ANYMAIL_STATUSES across all recipients, or None for not yet sent to ESP
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self.recipients = {} # per-recipient: { email: AnymailRecipientStatus, ... }
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self.esp_response = None
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def set_recipient_status(self, recipients):
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self.recipients.update(recipients)
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recipient_statuses = self.recipients.values()
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self.message_id = set([recipient.message_id for recipient in recipient_statuses])
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if len(self.message_id) == 1:
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self.message_id = self.message_id.pop() # de-set-ify if single message_id
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self.status = set([recipient.status for recipient in recipient_statuses])
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