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# Copyright 2008 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from google.appengine.ext import db
from google.appengine.api import mail
from google.appengine.api import users
import django.template
import models
import email
def get_default_sender():
return models.Settings.get_settings().from_email
def _encode_safely(s):
"""Helper to turn a unicode string into 8-bit bytes."""
if isinstance(s, unicode):
s = s.encode('utf-8')
return s
def _to_email_string(obj):
if isinstance(obj, str):
return obj
elif isinstance(obj, unicode):
return obj.encode('utf-8')
elif isinstance(obj, db.Email):
account = models.Account.get_account_for_email(obj)
elif isinstance(obj, users.User):
account = models.Account.get_account_for_user(obj)
elif isinstance(obj, models.Account):
account = obj
if account:
result = account.get_email_formatted()
else:
result = str(email)
return _encode_safely(result)
def send(sender, to, subject, template, template_args):
"""Sends an email based on a template.
All email address parameters can be: strings, unicode, db.Email users.User
or models.Account objects.
Args:
sender: The From address. Null if it should be sent from the role acct.
to: An email address or a list of email address to be in the To field.
subject: The subject line.
template: The name of the template file to use from the mail dir.
template_args: A map of args to be pasaed to the template
"""
if not sender:
sender_string = get_default_sender()
if not sender_string:
logging.warn('not sending email because there is no from address')
return 'not sending email because there is no from address'
else:
sender_string = _to_email_string(sender)
to_string = [_to_email_string(e) for e in to]
body = django.template.loader.render_to_string(template, template_args)
mail.send_mail(sender=sender_string, to=to_string, subject=subject, body=body)
def make_change_subject(change):
subject = "(%s) %s" % (change.dest_project.name, change.subject)
if change.message_set.count(1) > 0:
subject = 'Re: ' + subject
return subject
def send_change_message(request, change, template, template_args):
to_users = set([change.owner] + change.reviewers + change.cc)
subject = make_change_subject(change)
args = {
'url': request.build_absolute_uri('/%s' % change.key().id()),
}
if template_args:
args.update(template_args)
email.send(request.user, to_users, subject, template, args)
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