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isso/isso/ext/notifications.py

186 lines
5.1 KiB

# -*- encoding: utf-8 -*-
from __future__ import unicode_literals
import sys
import io
import time
import json
import socket
import smtplib
from email.utils import formatdate
from email.header import Header
from email.mime.text import MIMEText
import logging
logger = logging.getLogger("isso")
try:
import uwsgi
except ImportError:
uwsgi = None
from isso.compat import PY2K
from isso import local
if PY2K:
from thread import start_new_thread
else:
from _thread import start_new_thread
class SMTP(object):
def __init__(self, isso):
self.isso = isso
self.conf = isso.conf.section("smtp")
# test SMTP connectivity
try:
with self:
logger.info("connected to SMTP server")
except (socket.error, smtplib.SMTPException):
logger.exception("unable to connect to SMTP server")
if uwsgi:
def spooler(args):
try:
self._sendmail(args[b"subject"].decode("utf-8"),
args["body"].decode("utf-8"))
except smtplib.SMTPConnectError:
return uwsgi.SPOOL_RETRY
else:
return uwsgi.SPOOL_OK
uwsgi.spooler = spooler
def __enter__(self):
klass = (smtplib.SMTP_SSL if self.conf.get(
'security') == 'ssl' else smtplib.SMTP)
self.client = klass(host=self.conf.get('host'),
port=self.conf.getint('port'),
timeout=self.conf.getint('timeout'))
if self.conf.get('security') == 'starttls':
if sys.version_info >= (3, 4):
import ssl
self.client.starttls(context=ssl.create_default_context())
else:
self.client.starttls()
username = self.conf.get('username')
password = self.conf.get('password')
if username and password:
if PY2K:
username = username.encode('ascii')
password = password.encode('ascii')
self.client.login(username, password)
return self.client
def __exit__(self, exc_type, exc_value, traceback):
self.client.quit()
def __iter__(self):
yield "comments.new:after-save", self.notify
def format(self, thread, comment):
rv = io.StringIO()
author = comment["author"] or "Anonymous"
if comment["email"]:
author += " <%s>" % comment["email"]
rv.write(author + " wrote:\n")
rv.write("\n")
rv.write(comment["text"] + "\n")
rv.write("\n")
if comment["website"]:
rv.write("User's URL: %s\n" % comment["website"])
rv.write("IP address: %s\n" % comment["remote_addr"])
rv.write("Link to comment: %s\n" %
(local("origin") + thread["uri"] + "#isso-%i" % comment["id"]))
rv.write("\n")
uri = local("host") + "/id/%i" % comment["id"]
key = self.isso.sign(comment["id"])
rv.write("---\n")
rv.write("Delete comment: %s\n" % (uri + "/delete/" + key))
if comment["mode"] == 2:
rv.write("Activate comment: %s\n" % (uri + "/activate/" + key))
rv.seek(0)
return rv.read()
def notify(self, thread, comment):
body = self.format(thread, comment)
if uwsgi:
uwsgi.spool({b"subject": thread["title"].encode("utf-8"),
b"body": body.encode("utf-8")})
else:
start_new_thread(self._retry, (thread["title"], body))
def _sendmail(self, subject, body):
from_addr = self.conf.get("from")
to_addr = self.conf.get("to")
msg = MIMEText(body, 'plain', 'utf-8')
msg['From'] = from_addr
msg['To'] = to_addr
msg['Date'] = formatdate(localtime=True)
msg['Subject'] = Header(subject, 'utf-8')
with self as con:
con.sendmail(from_addr, to_addr, msg.as_string())
def _retry(self, subject, body):
for x in range(5):
try:
self._sendmail(subject, body)
except smtplib.SMTPConnectError:
time.sleep(60)
else:
break
class Stdout(object):
def __init__(self, conf):
pass
def __iter__(self):
yield "comments.new:new-thread", self._new_thread
yield "comments.new:finish", self._new_comment
yield "comments.edit", self._edit_comment
yield "comments.delete", self._delete_comment
yield "comments.activate", self._activate_comment
def _new_thread(self, thread):
logger.info("new thread %(id)s: %(title)s" % thread)
def _new_comment(self, thread, comment):
logger.info("comment created: %s", json.dumps(comment))
def _edit_comment(self, comment):
logger.info('comment %i edited: %s',
comment["id"], json.dumps(comment))
def _delete_comment(self, id):
logger.info('comment %i deleted', id)
def _activate_comment(self, id):
logger.info("comment %s activated" % id)