Fixed #11144 -- When a to/from/cc header contains unicode, make sure the email...

from email.MIMEMultipart import MIMEMultipart

from email.MIMEBase import MIMEBase

from email.Header import Header

from email.Utils import formatdate, parseaddr, formataddr

from email.Utils import formatdate, getaddresses, formataddr

from django.conf import settings

from django.core.mail.utils import DNS_NAME

    except UnicodeEncodeError:

        if name.lower() in ('to', 'from', 'cc'):

            result = []

            for item in val.split(', '):

                nm, addr = parseaddr(item)

            for nm, addr in getaddresses((val,)):

                nm = str(Header(nm, settings.DEFAULT_CHARSET))

                result.append(formataddr((nm, str(addr))))

            val = ', '.join(result)

>>> message['From']

'from@example.com'

# Regression for #11144 - When a to/from/cc header contains unicode,

# make sure the email addresses are parsed correctly (especially

# with regards to commas)

>>> email = EmailMessage('Subject', 'Content', 'from@example.com', ['"Firstname Sürname" <to@example.com>','other@example.com'])

>>> email.message()['To']

'=?utf-8?q?Firstname_S=C3=BCrname?= <to@example.com>, other@example.com'

>>> email = EmailMessage('Subject', 'Content', 'from@example.com', ['"Sürname, Firstname" <to@example.com>','other@example.com'])

>>> email.message()['To']

'=?utf-8?q?S=C3=BCrname=2C_Firstname?= <to@example.com>, other@example.com'

# Handle attachments within an multipart/alternative mail correctly (#9367)

# (test is not as precise/clear as it could be w.r.t. email tree structure,

#  but it's good enough.)