6d6d3aac51
Fixed a bug that was preventing CC/BCC from being honored. Fixes issue #528. - Legacy-Id: 2623 Note: SVN reference [2604] has been migrated to Git commit 4d27ae4d7a535fb7c9cb44dd0d486a0f5850b1b1
174 lines
7.1 KiB
Python
174 lines
7.1 KiB
Python
# Copyright The IETF Trust 2007, All Rights Reserved
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from email.Utils import make_msgid, formatdate, formataddr, parseaddr, getaddresses
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from email.MIMEText import MIMEText
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from email.MIMEMessage import MIMEMessage
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from email.MIMEMultipart import MIMEMultipart
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from email import message_from_string
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import smtplib
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from django.conf import settings
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from django.core.exceptions import ImproperlyConfigured
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from django.template.loader import render_to_string
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from django.template import Context,RequestContext
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from ietf.utils import log
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import sys
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import time
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def add_headers(msg):
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if not(msg.has_key('Message-ID')):
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msg['Message-ID'] = make_msgid('idtracker')
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if not(msg.has_key('Date')):
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msg['Date'] = formatdate(time.time(), True)
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if not(msg.has_key('From')):
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msg['From'] = settings.DEFAULT_FROM_EMAIL
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return msg
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def send_smtp(msg, bcc=None):
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'''
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Send a Message via SMTP, based on the django email server settings.
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The destination list will be taken from the To:/Cc: headers in the
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Message. The From address will be used if present or will default
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to the django setting DEFAULT_FROM_EMAIL
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'''
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add_headers(msg)
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(fname, frm) = parseaddr(msg.get('From'))
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addrlist = msg.get_all('To') + msg.get_all('Cc', [])
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if bcc:
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addrlist += [bcc]
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to = [addr for name, addr in getaddresses(addrlist)]
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server = None
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try:
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server = smtplib.SMTP()
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if settings.DEBUG:
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server.set_debuglevel(1)
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server.connect(settings.EMAIL_HOST, settings.EMAIL_PORT)
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if settings.EMAIL_HOST_USER and settings.EMAIL_HOST_PASSWORD:
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server.ehlo()
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if 'starttls' not in server.esmtp_features:
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raise ImproperlyConfigured('password configured but starttls not supported')
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(retval, retmsg) = server.starttls()
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if retval != 220:
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raise ImproperlyConfigured('password configured but tls failed: %d %s' % ( retval, retmsg ))
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# Send a new EHLO, since without TLS the server might not
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# advertise the AUTH capability.
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server.ehlo()
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server.login(settings.EMAIL_HOST_USER, settings.EMAIL_HOST_PASSWORD)
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server.sendmail(frm, to, msg.as_string())
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# note: should pay attention to the return code, as it may
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# indicate that someone didn't get the email.
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except:
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if server:
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server.quit()
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# need to improve log message
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log("got exception '%s' (%s) trying to send email from '%s' to %s subject '%s'" % (sys.exc_info()[0], sys.exc_info()[1], frm, to, msg.get('Subject', '[no subject]')))
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if isinstance(sys.exc_info()[0], smtplib.SMTPException):
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raise
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else:
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raise smtplib.SMTPException({'really': sys.exc_info()[0], 'value': sys.exc_info()[1], 'tb': sys.exc_info()[2]})
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server.quit()
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log("sent email from '%s' to %s subject '%s'" % (frm, to, msg.get('Subject', '[no subject]')))
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def copy_email(msg, to, toUser=False):
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'''
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Send a copy of the given email message to the given recipient.
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'''
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add_headers(msg)
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# Overwrite the From: header, so that the copy from a development or
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# test server doesn't look like spam.
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msg['From'] = settings.DEFAULT_FROM_EMAIL
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new = MIMEMultipart()
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# get info for first part.
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# Mode: if it's production, then "copy of a message", otherwise
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# "this is a message that would have been sent from"
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# hostname?
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# django settings if debugging?
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# Should this be a template?
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if settings.SERVER_MODE == 'production':
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explanation = "This is a copy of a message sent from the I-D tracker."
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elif settings.SERVER_MODE == 'test' and toUser:
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explanation = "The attached message was generated by an instance of the tracker\nin test mode. It is being sent to you because you, or someone acting\non your behalf, is testing the system. If you do not recognize\nthis action, please accept our apologies and do not be concerned as\nthe action is being taken in a test context."
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else:
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explanation = "The attached message would have been sent, but the tracker is in %s mode.\nIt was not sent to anybody." % settings.SERVER_MODE
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new.attach(MIMEText(explanation + "\n\n"))
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new.attach(MIMEMessage(msg))
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new['From'] = msg['From']
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new['Subject'] = '[Django %s] %s' % (settings.SERVER_MODE, msg.get('Subject', '[no subject]'))
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new['To'] = to
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send_smtp(new)
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def mail_context(request):
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if request:
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return RequestContext(request)
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else:
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return Context()
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def send_mail_subj(request, to, frm, stemplate, template, context, *args, **kwargs):
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'''
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Send an email message, exactly as send_mail(), but the
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subject field is a template.
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'''
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subject = render_to_string(stemplate, context, context_instance=mail_context(request)).replace("\n"," ").strip()
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return send_mail(request, to, frm, subject, template, context, *args, **kwargs)
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def send_mail(request, to, frm, subject, template, context, *args, **kwargs):
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'''
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Send an email to the destination [list], with the given return
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address (or "None" to use the default in settings.py).
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The body is a text/plain rendering of the template with the context.
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extra is a dict of extra headers to add.
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'''
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txt = render_to_string(template, context, context_instance=mail_context(request))
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return send_mail_text(request, to, frm, subject, txt, *args, **kwargs)
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def send_mail_text(request, to, frm, subject, txt, cc=None, extra=None, toUser=None, bcc=None):
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"""Send plain text message."""
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if isinstance(txt, unicode):
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msg = MIMEText(txt.encode('utf-8'), 'plain', 'UTF-8')
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else:
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msg = MIMEText(txt)
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send_mail_mime(request, to, frm, subject, msg, cc, extra, toUser, bcc)
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def send_mail_mime(request, to, frm, subject, msg, cc=None, extra=None, toUser=None, bcc=None):
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"""Send MIME message with content already filled in."""
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if isinstance(frm, tuple):
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frm = formataddr(frm)
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if isinstance(to, list) or isinstance(to, tuple):
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to = ", ".join([isinstance(addr, tuple) and formataddr(addr) or addr for addr in to])
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if isinstance(cc, list) or isinstance(cc, tuple):
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cc = ", ".join([isinstance(addr, tuple) and formataddr(addr) or addr for addr in cc])
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if frm:
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msg['From'] = frm
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msg['To'] = to
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if cc:
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msg['Cc'] = cc
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msg['Subject'] = subject
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msg['X-Test-IDTracker'] = (settings.SERVER_MODE == 'production') and 'no' or 'yes'
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if extra:
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for k, v in extra.iteritems():
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msg[k] = v
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if settings.SERVER_MODE == 'production':
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send_smtp(msg, bcc)
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elif settings.SERVER_MODE == 'test':
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if toUser:
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copy_email(msg, to, toUser=True)
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elif request and request.COOKIES.has_key( 'testmailcc' ):
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copy_email(msg, request.COOKIES[ 'testmailcc' ])
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try:
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copy_to = settings.EMAIL_COPY_TO
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except AttributeError:
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copy_to = "ietf.tracker.archive+%s@gmail.com" % settings.SERVER_MODE
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if bcc:
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msg['X-Tracker-Bcc']=bcc
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copy_email(msg, copy_to)
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def send_mail_preformatted(request, preformatted):
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"""Parse preformatted string containing mail with From:, To:, ...,
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and send it through the standard IETF mail interface (inserting
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extra headers as needed)."""
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msg = message_from_string(preformatted.encode("utf-8"))
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send_mail_text(request, msg['To'], msg["From"], msg["Subject"], msg.get_payload(), cc=msg["Cc"], bcc=msg["Bcc"])
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