def emails_run(qEmails):
"""
Process Requests and send Emails accordingly
"""
# db connection is shared between threads
dbconnection = connect()
while True:
try:
event = Event(qEmails.get())
except Exception as e:
logger.error("Problem with event: {}".format(e))
continue
else:
if event.notify:
# We try to send the email only once
event.notify = False
dispatch(dbconnection, event)
# Recipients
# TODO: Send specific emails
# Status did NOT changed
# Comments about an event with a message
if event.status == event.previous_status:
logger.warning("TODO: send specific emails with messages")
recipients = set()
url = s.web['url']
if s.web['port'] and s.web['port'] != 80:
url = url +':'+ s.web['port']
buttonLabel = "View details"
if event.object.type == ObjectType.PASSWORD:
recipients.add(User(event.object.id))
url = url+'/password/'+event.data['hashing']
subject, template = build_subject_and_template('password', event)
buttonLabel = "Change password"
else:
if event.isPending():
# Find the authority of the event object
# Then according the authority, put the pi_emails in pis_email
try:
authority_id = event.data['authority']
except KeyError:
msg = 'Authority id not specified ({})'.format(event.id)
logger.error(msg)
event.logWarning('Authority not specified in event {}, email not sent'.format(event.id))
pass
else:
authority = Authority(db.get(dbconnection, table='authorities', id=authority_id))
if not authority:
# get admin users
users = db.get(dbconnection, table='users')
for u in users:
user = User(u)
if user.isAdmin():
logger.debug("user %s is admin" % user.id)
recipients.add(user)
else:
for pi_id in authority.pi_users:
recipients.add(User(pi_id))
if not recipients:
msg = 'Emails cannot be sent because no one is the PI of {}'.format(event.object.id)
logger.error(msg)
event.logWarning('No recipients could be found for event {}, email not sent'.format(event.id))
subject, template = build_subject_and_template('request', event)
buttonLabel = "Approve / Deny"
url = url + '/activity'
else:
if event.user:
recipients.add(User(event.user))
else:
# Look for the user email in the Event
if event.object.type == ObjectType.USER:
recipients.add(User({'email':event.data['email'], 'first_name':event.data['first_name'], 'last_name':event.data['last_name']}))
elif event.object.type == ObjectType.AUTHORITY:
for user in event.data['users']:
recipients.add(User(user))
else:
for user in event.data['pi_users']:
recipients.add(User(user))
if event.isSuccess():
subject, template = build_subject_and_template('approve', event)
elif event.isDenied():
subject, template = build_subject_and_template('deny', event)
try:
sendEmail(event, recipients, subject, template, url, buttonLabel)
except Exception as e:
import traceback
traceback.print_exc()
msg = "Error in event {} while trying to send an email: {} {}".format(event.id, e, traceback.print_exc())
logger.error(msg)
event.logWarning(msg)
continue
finally:
dispatch(dbconnection, event)
def run():
"""
"""
signal.signal(signal.SIGINT, receive_signal)
signal.signal(signal.SIGTERM, receive_signal)
signal.signal(signal.SIGHUP, receive_signal)
threads = []
qEmails = Queue()
for y in range(1):
t = threading.Thread(target=manageEmails, args=(qEmails, ))
t.daemon = True
threads.append(t)
t.start()
qConfirmEmails = Queue()
for y in range(1):
t = threading.Thread(target=confirmEmails, args=(qConfirmEmails, ))
t.daemon = True
threads.append(t)
t.start()
context = zmq.Context()
socket = context.socket(zmq.SUB)
socket.setsockopt_string(zmq.SUBSCRIBE, 'emails')
socket.connect("tcp://localhost:6002")
logger.info("[emails] Collecting updates from ZMQ bus for activity")
while True:
logger.debug("[emails]Change in emails feed")
topic, zmqmessage = socket.recv_multipart()
activity = pickle.loads(zmqmessage)
logger.debug("[emails]{0}: {1}".format(topic, activity))
try:
event = Event(activity['new_val'])
except Exception as e:
logger.error("Problem with event: {}".format(e))
continue
else:
if event.isConfirm() and event.notify:
logger.debug("Add event %s to Confirm Email queue" %
(event.id))
qConfirmEmails.put(event)
elif event.isPending() and event.notify:
logger.debug("Add event %s to Email queue" % (event.id))
qEmails.put(event)
elif event.isDenied() and event.notify:
logger.info("event {} is denied".format(event.id))
logger.debug("Add event %s to Email queue" % (event.id))
qEmails.put(event)
elif event.isSuccess() and event.notify:
logger.debug("Add event %s to Email queue" % (event.id))
qEmails.put(event)
logger.critical("Service emails stopped")
# waits for the thread to finish
for x in threads:
x.join()
def post(self, id=None):
"""
ONLY FOR DEBUG
"""
# TODO: get user id from user logged in
# NOTE: checks are done by the service, here we only dispatch the event
try:
data = escape.json_decode(self.request.body)['event']
except json.decoder.JSONDecodeError as e:
logger.error(self.request.body)
logger.exception("malformed request")
self.set_status(400)
self.finish(
json.dumps({
"return": {
"status": "error",
"messages": "malformed request"
}
}))
try:
event = Event(data)
except Exception as e:
logger.exception("error in post activity")
import traceback
traceback.print_exc()
self.set_status(500)
self.finish(
json.dumps(
{"return": {
"status": "error",
"messages": e.message
}}))
else:
try:
# XXX If watching all events, is scalability an issue?
# changes sends back all the events that occured since it started...
feed = yield changes(dbconnection=self.dbconnection,
table='activity')
# We need to watch the changes before dispatch, because the service writing into the DB is faster than this process
result = yield dispatch(self.dbconnection, event)
event_id = result['generated_keys'][0]
while (yield feed.fetch_next()):
item = yield feed.next()
# items are piling up...
ev = Event(item['new_val'])
if ev.id == event_id:
if ev.isError() or ev.isWarning():
self.set_status(500)
# XXX trying to cleanup the Cursor, but it is not Working
# <class 'rethinkdb.net_tornado.TornadoCursor'>
# https://github.com/rethinkdb/rethinkdb/blob/next/drivers/python/rethinkdb/tornado_net/net_tornado.py
# https://github.com/rethinkdb/rethinkdb/blob/next/drivers/python/rethinkdb/net.py
#yield feed.close()
self.finish(
json.dumps(
{
"return": {
"status": ev.status,
"messages": ev
}
},
cls=myJSONEncoder))
elif ev.isSuccess() or ev.isPending():
self.set_status(200)
#yield feed.close()
self.finish(
json.dumps(
{
"return": {
"status": ev.status,
"messages": ev
}
},
cls=myJSONEncoder))
except Exception as e:
logger.exception("error in post activity")
import traceback
traceback.print_exc()
self.set_status(500)
#yield feed.close()
self.finish(
json.dumps(
{
"return": {
"status": EventStatus.ERROR,
"messages": e
}
},
cls=myJSONEncoder))
