from django.conf import settings from django.contrib.sessions.models import Session from zephyr.lib.context_managers import lockfile from zephyr.models import Realm, Stream, UserProfile, UserActivity, \ Subscription, Recipient, Message, UserMessage, valid_stream_name, \ DefaultStream, UserPresence, MAX_SUBJECT_LENGTH, \ MAX_MESSAGE_LENGTH, get_client, get_stream, get_recipient, get_huddle, \ get_user_profile_by_id, PreregistrationUser from django.db import transaction, IntegrityError from django.db.models import F from django.core.exceptions import ValidationError from django.utils.importlib import import_module from confirmation.models import Confirmation session_engine = import_module(settings.SESSION_ENGINE) from zephyr.lib.initial_password import initial_password from zephyr.lib.timestamp import timestamp_to_datetime, datetime_to_timestamp from zephyr.lib.cache_helpers import cache_save_message from zephyr.lib.queue import queue_json_publish from django.utils import timezone from zephyr.lib.create_user import create_user from zephyr.lib import bugdown from zephyr.lib.cache import cache_with_key, user_profile_by_id_cache_key, \ user_profile_by_email_cache_key, status_dict_cache_key from zephyr.decorator import get_user_profile_by_email, json_to_list, JsonableError from zephyr.lib.event_queue import request_event_queue, get_user_events from zephyr import tornado_callbacks import subprocess import simplejson import time import traceback import re import datetime import os import platform import logging from collections import defaultdict from os import path # Store an event in the log for re-importing messages def log_event(event): if "timestamp" not in event: event["timestamp"] = time.time() if not path.exists(settings.EVENT_LOG_DIR): os.mkdir(settings.EVENT_LOG_DIR) template = path.join(settings.EVENT_LOG_DIR, '%s.' + platform.node() + datetime.datetime.now().strftime('.%Y-%m-%d')) with lockfile(template % ('lock',)): with open(template % ('events',), 'a') as log: log.write(simplejson.dumps(event) + '\n') def do_create_user(email, password, realm, full_name, short_name, active=True): log_event({'type': 'user_created', 'timestamp': time.time(), 'full_name': full_name, 'short_name': short_name, 'user': email, 'domain': realm.domain}) user_profile = create_user(email, password, realm, full_name, short_name, active) notice = dict(event=dict(type="realm_user", op="add", person=dict(email=user_profile.email, full_name=user_profile.full_name)), users=[up.id for up in UserProfile.objects.select_related().filter(realm=user_profile.realm, is_active=True)]) tornado_callbacks.send_notification(notice) return user_profile def user_sessions(user_profile): return [s for s in Session.objects.all() if s.get_decoded().get('_auth_user_id') == user_profile.id] def delete_session(session): return session_engine.SessionStore(session.session_key).delete() def delete_user_sessions(user_profile): for session in Session.objects.all(): if session.get_decoded().get('_auth_user_id') == user_profile.id: delete_session(session) def delete_realm_user_sessions(realm): realm_user_ids = [user_profile.id for user_profile in UserProfile.objects.filter(realm=realm)] for session in Session.objects.all(): if session.get_decoded().get('_auth_user_id') in realm_user_ids: delete_session(session) def delete_all_user_sessions(): for session in Session.objects.all(): delete_session(session) def do_deactivate(user_profile): user_profile.is_active = False; user_profile.set_unusable_password() user_profile.save(update_fields=["is_active", "password"]) delete_user_sessions(user_profile) log_event({'type': 'user_deactivated', 'timestamp': time.time(), 'user': user_profile.email, 'domain': user_profile.realm.domain}) notice = dict(event=dict(type="realm_user", op="remove", person=dict(email=user_profile.email, full_name=user_profile.full_name)), users=[up.id for up in UserProfile.objects.select_related().filter(realm=user_profile.realm, is_active=True)]) tornado_callbacks.send_notification(notice) def do_change_user_email(user_profile, new_email): old_email = user_profile.email user_profile.email = new_email user_profile.save(update_fields=["email"]) log_event({'type': 'user_email_changed', 'old_email': old_email, 'new_email': new_email}) def compute_mit_user_fullname(email): try: # Input is either e.g. starnine@mit.edu or user|CROSSREALM.INVALID@mit.edu match_user = re.match(r'^([a-zA-Z0-9_.-]+)(\|.+)?@mit\.edu$', email.lower()) if match_user and match_user.group(2) is None: dns_query = "%s.passwd.ns.athena.mit.edu" % (match_user.group(1),) proc = subprocess.Popen(['host', '-t', 'TXT', dns_query], stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, _err_unused = proc.communicate() if proc.returncode == 0: # Parse e.g. 'starnine:*:84233:101:Athena Consulting Exchange User,,,:/mit/starnine:/bin/bash' # for the 4th passwd entry field, aka the person's name. hesiod_name = out.split(':')[4].split(',')[0].strip() if hesiod_name == "": return email return hesiod_name elif match_user: return match_user.group(1).lower() + "@" + match_user.group(2).upper()[1:] except: print ("Error getting fullname for %s:" % (email,)) traceback.print_exc() return email.lower() @cache_with_key(lambda realm, email: user_profile_by_email_cache_key(email), timeout=3600*24*7) @transaction.commit_on_success def create_mit_user_if_needed(realm, email): try: return get_user_profile_by_email(email) except UserProfile.DoesNotExist: try: # Forge a user for this person return create_user(email, initial_password(email), realm, compute_mit_user_fullname(email), email.split("@")[0], active=False) except IntegrityError: # Unless we raced with another thread doing the same # thing, in which case we should get the user they made transaction.commit() return get_user_profile_by_email(email) def log_message(message): if not message.sending_client.name.startswith("test:"): log_event(message.to_log_dict()) def do_send_message(message, rendered_content=None, no_log=False, stream=None): # Log the message to our message log for populate_db to refill if not no_log: log_message(message) if message.recipient.type == Recipient.PERSONAL: recipients = list(set([get_user_profile_by_id(message.recipient.type_id), get_user_profile_by_id(message.sender_id)])) # For personals, you send out either 1 or 2 copies of the message, for # personals to yourself or to someone else, respectively. assert((len(recipients) == 1) or (len(recipients) == 2)) elif (message.recipient.type == Recipient.STREAM or message.recipient.type == Recipient.HUDDLE): recipients = [s.user_profile for s in Subscription.objects.select_related( "user_profile").filter(recipient=message.recipient, active=True)] else: raise ValueError('Bad recipient type') # Save the message receipts in the database with transaction.commit_on_success(): message.save() ums_to_create = [UserMessage(user_profile=user_profile, message=message) for user_profile in recipients if user_profile.is_active] for um in ums_to_create: sent_by_human = message.sending_client.name.lower() in \ ['website', 'iphone', 'android'] if um.user_profile == message.sender and sent_by_human: um.flags |= UserMessage.flags.read UserMessage.objects.bulk_create(ums_to_create) cache_save_message(message) # We can only publish messages to longpolling clients if the Tornado server is running. if settings.TORNADO_SERVER: # Render Markdown etc. here and store (automatically) in # memcached, so that the single-threaded Tornado server # doesn't have to. message.to_dict(apply_markdown=True, rendered_content=rendered_content) message.to_dict(apply_markdown=False) data = dict( type = 'new_message', message = message.id, users = [user.id for user in recipients]) if message.recipient.type == Recipient.STREAM: # Note: This is where authorization for single-stream # get_updates happens! We only attach stream data to the # notify new_message request if it's a public stream, # ensuring that in the tornado server, non-public stream # messages are only associated to their subscribed users. if stream is None: stream = Stream.objects.select_related("realm").get(id=message.recipient.type_id) if stream.is_public(): data['realm_id'] = stream.realm.id data['stream_name'] = stream.name tornado_callbacks.send_notification(data) def create_stream_if_needed(realm, stream_name, invite_only=False): (stream, created) = Stream.objects.get_or_create( realm=realm, name__iexact=stream_name, defaults={'name': stream_name, 'invite_only': invite_only}) if created: Recipient.objects.create(type_id=stream.id, type=Recipient.STREAM) return stream, created def recipient_for_emails(emails, not_forged_zephyr_mirror, user_profile, sender): recipient_profile_ids = set() for email in emails: try: recipient_profile_ids.add(get_user_profile_by_email(email).id) except UserProfile.DoesNotExist: raise ValidationError("Invalid email '%s'" % (email,)) if not_forged_zephyr_mirror and user_profile.id not in recipient_profile_ids: raise ValidationError("User not authorized for this query") # If the private message is just between the sender and # another person, force it to be a personal internally if (len(recipient_profile_ids) == 2 and sender.id in recipient_profile_ids): recipient_profile_ids.remove(sender.id) if len(recipient_profile_ids) > 1: # Make sure the sender is included in huddle messages recipient_profile_ids.add(sender.id) huddle = get_huddle(list(recipient_profile_ids)) return get_recipient(Recipient.HUDDLE, huddle.id) else: return get_recipient(Recipient.PERSONAL, list(recipient_profile_ids)[0]) def already_sent_mirrored_message(message): if message.recipient.type == Recipient.HUDDLE: # For huddle messages, we use a 10-second window because the # timestamps aren't guaranteed to actually match between two # copies of the same message. time_window = datetime.timedelta(seconds=10) else: time_window = datetime.timedelta(seconds=0) # Since our database doesn't store timestamps with # better-than-second resolution, we should do our comparisons # using objects at second resolution pub_date_lowres = message.pub_date.replace(microsecond=0) return Message.objects.filter( sender=message.sender, recipient=message.recipient, content=message.content, subject=message.subject, sending_client=message.sending_client, pub_date__gte=pub_date_lowres - time_window, pub_date__lte=pub_date_lowres + time_window).exists() def extract_recipients(raw_recipients): try: recipients = json_to_list(raw_recipients) except (simplejson.decoder.JSONDecodeError, ValueError): recipients = [raw_recipients] # Strip recipients, and then remove any duplicates and any that # are the empty string after being stripped. recipients = [recipient.strip() for recipient in recipients] return list(set(recipient for recipient in recipients if recipient)) # check_send_message: # Returns None on success or the error message on error. def check_send_message(sender, client, message_type_name, message_to, subject_name, message_content, realm=None, forged=False, forged_timestamp=None, forwarder_user_profile=None): stream = None if len(message_to) == 0: return "Message must have recipients." if len(message_content) > MAX_MESSAGE_LENGTH: return "Message too long." if realm is None: realm = sender.realm if message_type_name == 'stream': if len(message_to) > 1: return "Cannot send to multiple streams" stream_name = message_to[0].strip() if stream_name == "": return "Stream can't be empty" if len(stream_name) > Stream.MAX_NAME_LENGTH: return "Stream name too long" if not valid_stream_name(stream_name): return "Invalid stream name" if subject_name is None: return "Missing subject" subject = subject_name.strip() if subject == "": return "Subject can't be empty" if len(subject) > MAX_SUBJECT_LENGTH: return "Subject too long" ## FIXME: Commented out temporarily while we figure out what we want # if not valid_stream_name(subject): # return json_error("Invalid subject name") stream = get_stream(stream_name, realm) if stream is None: return "Stream does not exist" recipient = get_recipient(Recipient.STREAM, stream.id) elif message_type_name == 'private': not_forged_zephyr_mirror = client and client.name == "zephyr_mirror" and not forged try: recipient = recipient_for_emails(message_to, not_forged_zephyr_mirror, forwarder_user_profile, sender) except ValidationError, e: return e.messages[0] else: return "Invalid message type" rendered_content = bugdown.convert(message_content) if rendered_content is None: return "We were unable to render your message" message = Message() message.sender = sender message.content = message_content message.rendered_content = rendered_content message.rendered_content_version = bugdown.version message.recipient = recipient if message_type_name == 'stream': message.subject = subject if forged: # Forged messages come with a timestamp message.pub_date = timestamp_to_datetime(forged_timestamp) else: message.pub_date = timezone.now() message.sending_client = client if client.name == "zephyr_mirror" and already_sent_mirrored_message(message): return None do_send_message(message, rendered_content=rendered_content, stream=stream) return None def internal_send_message(sender_email, recipient_type_name, recipients, subject, content, realm=None): if len(content) > MAX_MESSAGE_LENGTH: content = content[0:3900] + "\n\n[message was too long and has been truncated]" sender = get_user_profile_by_email(sender_email) if realm is None: realm = sender.realm parsed_recipients = extract_recipients(recipients) if recipient_type_name == "stream": stream, _ = create_stream_if_needed(realm, parsed_recipients[0]) ret = check_send_message(sender, get_client("Internal"), recipient_type_name, parsed_recipients, subject, content, realm) if ret is not None: logging.error("Error sending internal message by %s: %s" % (sender_email, ret)) def get_stream_colors(user_profile): return [(sub["name"], sub["color"]) for sub in gather_subscriptions(user_profile)] def pick_color(user_profile): # These colors are shared with the palette in subs.js. stream_assignment_colors = [ "#76ce90", "#fae589", "#a6c7e5", "#e79ab5", "#bfd56f", "#f4ae55", "#b0a5fd", "#addfe5", "#f5ce6e", "#c2726a", "#94c849", "#bd86e5", "#ee7e4a", "#a6dcbf", "#95a5fd", "#53a063", "#9987e1", "#e4523d", "#c2c2c2", "#4f8de4", "#c6a8ad", "#e7cc4d", "#c8bebf", "#a47462"] used_colors = [elt[1] for elt in get_stream_colors(user_profile) if elt[1]] available_colors = filter(lambda x: x not in used_colors, stream_assignment_colors) if available_colors: return available_colors[0] else: return stream_assignment_colors[len(used_colors) % len(stream_assignment_colors)] def get_subscription(stream_name, user_profile): stream = get_stream(stream_name, user_profile.realm) recipient = get_recipient(Recipient.STREAM, stream.id) return Subscription.objects.get(user_profile=user_profile, recipient=recipient, active=True) def set_stream_color(user_profile, stream_name, color=None): subscription = get_subscription(stream_name, user_profile) if not color: color = pick_color(user_profile) subscription.color = color subscription.save(update_fields=["color"]) return color def do_add_subscription(user_profile, stream, no_log=False): recipient = get_recipient(Recipient.STREAM, stream.id) color = pick_color(user_profile) (subscription, created) = Subscription.objects.get_or_create( user_profile=user_profile, recipient=recipient, defaults={'active': True, 'color': color}) did_subscribe = created if not subscription.active: did_subscribe = True subscription.active = True subscription.save(update_fields=["active"]) if did_subscribe: if not no_log: log_event({'type': 'subscription_added', 'user': user_profile.email, 'name': stream.name, 'domain': stream.realm.domain}) notice = dict(event=dict(type="subscription", op="add", subscription=dict(name=stream.name, in_home_view=subscription.in_home_view, invite_only=stream.invite_only, color=subscription.color)), users=[user_profile.id]) tornado_callbacks.send_notification(notice) return did_subscribe def do_remove_subscription(user_profile, stream, no_log=False): recipient = get_recipient(Recipient.STREAM, stream.id) maybe_sub = Subscription.objects.filter(user_profile=user_profile, recipient=recipient) if len(maybe_sub) == 0: return False subscription = maybe_sub[0] did_remove = subscription.active subscription.active = False subscription.save(update_fields=["active"]) if did_remove: if not no_log: log_event({'type': 'subscription_removed', 'user': user_profile.email, 'name': stream.name, 'domain': stream.realm.domain}) notice = dict(event=dict(type="subscription", op="remove", subscription=dict(name=stream.name)), users=[user_profile.id]) tornado_callbacks.send_notification(notice) return did_remove def log_subscription_property_change(user_email, stream_name, property, value): event = {'type': 'subscription_property', 'property': property, 'user': user_email, 'stream_name': stream_name, 'value': value} log_event(event) def do_activate_user(user_profile, log=True, join_date=timezone.now()): user_profile.is_active = True user_profile.set_password(initial_password(user_profile.email)) user_profile.date_joined = join_date user_profile.save(update_fields=["is_active", "date_joined", "password"]) if log: domain = user_profile.realm.domain log_event({'type': 'user_activated', 'user': user_profile.email, 'domain': domain}) def do_change_password(user_profile, password, log=True, commit=True, hashed_password=False): if hashed_password: # This is a hashed password, not the password itself. user_profile.set_password(password) else: user_profile.set_password(password) if commit: user_profile.save(update_fields=["password"]) if log: log_event({'type': 'user_change_password', 'user': user_profile.email, 'pwhash': user_profile.password}) def do_change_full_name(user_profile, full_name, log=True): user_profile.full_name = full_name user_profile.save(update_fields=["full_name"]) if log: log_event({'type': 'user_change_full_name', 'user': user_profile.email, 'full_name': full_name}) def do_create_realm(domain, replay=False): realm, created = Realm.objects.get_or_create(domain=domain) if created and not replay: # Log the event log_event({"type": "realm_created", "domain": domain}) internal_send_message("humbug+signups@humbughq.com", "stream", "signups", domain, "Signups enabled.") return (realm, created) def do_change_enable_desktop_notifications(user_profile, enable_desktop_notifications, log=True): user_profile.enable_desktop_notifications = enable_desktop_notifications user_profile.save(update_fields=["enable_desktop_notifications"]) if log: log_event({'type': 'enable_desktop_notifications_changed', 'user': user_profile.email, 'enable_desktop_notifications': enable_desktop_notifications}) def do_change_enter_sends(user_profile, enter_sends): user_profile.enter_sends = enter_sends user_profile.save(update_fields=["enter_sends"]) def set_default_streams(realm, stream_names): DefaultStream.objects.filter(realm=realm).delete() for stream_name in stream_names: stream, _ = create_stream_if_needed(realm, stream_name) DefaultStream.objects.create(stream=stream, realm=realm) def get_default_subs(user_profile): return [default.stream for default in DefaultStream.objects.filter(realm=user_profile.realm)] @transaction.commit_on_success def do_update_user_activity(user_profile, client, query, log_time): try: (activity, created) = UserActivity.objects.get_or_create( user_profile = user_profile, client = client, query = query, defaults={'last_visit': log_time, 'count': 0}) except IntegrityError: transaction.commit() activity = UserActivity.objects.get(user_profile = user_profile, client = client, query = query) activity.count += 1 activity.last_visit = log_time activity.save(update_fields=["last_visit", "count"]) def process_user_activity_event(event): user_profile = UserProfile.objects.get(id=event["user_profile_id"]) client = get_client(event["client"]) log_time = timestamp_to_datetime(event["time"]) query = event["query"] return do_update_user_activity(user_profile, client, query, log_time) def send_presence_changed(user_profile, presence): presence_dict = presence.to_dict() notice = dict(event=dict(type="presence", email=user_profile.email, presence={presence_dict['client']: presence.to_dict()}), users=[up.id for up in UserProfile.objects.select_related() .filter(realm=user_profile.realm, is_active=True)]) tornado_callbacks.send_notification(notice) @transaction.commit_on_success def do_update_user_presence(user_profile, client, log_time, status): try: (presence, created) = UserPresence.objects.get_or_create( user_profile = user_profile, client = client, defaults = {'timestamp': log_time}) except IntegrityError: transaction.commit() presence = UserPresence.objects.get(user_profile = user_profile, client = client) created = False stale_status = (log_time - presence.timestamp) > datetime.timedelta(minutes=10) was_idle = presence.status == UserPresence.IDLE became_online = (status == UserPresence.ACTIVE) and (stale_status or was_idle) presence.timestamp = log_time presence.status = status presence.save(update_fields=["timestamp", "status"]) if not user_profile.realm.domain == "mit.edu" and (created or became_online): # Push event to all users in the realm so they see the new user # appear in the presence list immediately, or the newly online # user without delay send_presence_changed(user_profile, presence) def update_user_presence(user_profile, client, log_time, status): event={'type': 'user_presence', 'user_profile_id': user_profile.id, 'status': status, 'time': datetime_to_timestamp(log_time), 'client': client.name} queue_json_publish("user_activity", event, process_user_presence_event) def update_message_flags(user_profile, operation, flag, messages, all): rest_until = None if all: # Do the first 450 message updates in-process, as this is a # bankruptcy request and the user is about to reload. We don't # want them to see a bunch of unread messages while we go about # doing the work first_batch = 450 flagattr = getattr(UserMessage.flags, flag) all_ums = UserMessage.objects.filter(user_profile=user_profile) if operation == "add": umessages = all_ums.filter(flags=~flagattr) elif operation == "remove": umessages = all_ums.filter(flags=flagattr) mids = [m.id for m in umessages.order_by('-id')[:first_batch]] to_update = UserMessage.objects.filter(id__in=mids) if operation == "add": to_update.update(flags=F('flags').bitor(flagattr)) elif operation == "remove": to_update.update(flags=F('flags').bitand(~flagattr)) if len(mids) == 0: return True rest_until = mids[len(mids) - 1] event = {'type': 'update_message', 'user_profile_id': user_profile.id, 'operation': operation, 'flag': flag, 'messages': messages, 'until_id': rest_until} queue_json_publish("user_activity", event, process_update_message_flags) def process_user_presence_event(event): user_profile = UserProfile.objects.get(id=event["user_profile_id"]) client = get_client(event["client"]) log_time = timestamp_to_datetime(event["time"]) status = event["status"] return do_update_user_presence(user_profile, client, log_time, status) def process_update_message_flags(event): user_profile = UserProfile.objects.get(id=event["user_profile_id"]) try: until_id = event["until_id"] messages = event["messages"] flag = event["flag"] op = event["operation"] except (KeyError, AttributeError): return False # Shell out bankruptcy requests as we split them up into many # pieces to avoid swamping the db if until_id and not settings.TEST_SUITE: update_flags_externally(op, flag, user_profile, until_id) return True flagattr = getattr(UserMessage.flags, flag) msgs = UserMessage.objects.filter(user_profile=user_profile, message__id__in=messages) # If we're running in the test suite, don't shell out to manage.py. # Updates that the manage.py command makes don't seem to be immediately # reflected in the next in-process sqlite queries. # TODO(leo) remove when tests switch to postgres if settings.TEST_SUITE and until_id: msgs = UserMessage.objects.filter(user_profile=user_profile, id__lte=until_id) if op == 'add': msgs.update(flags=F('flags').bitor(flagattr)) elif op == 'remove': msgs.update(flags=F('flags').bitand(~flagattr)) return True def update_flags_externally(op, flag, user_profile, until_id): args = ['python', os.path.join(os.path.dirname(__file__), '../..', 'manage.py'), 'set_message_flags', '--for-real', '-o', op, '-f', flag, '-m', user_profile.email, '-u', str(until_id)] subprocess.Popen(args, stdin=subprocess.PIPE, stdout=None, stderr=None) def subscribed_to_stream(user_profile, stream): try: if Subscription.objects.get(user_profile=user_profile, active=True, recipient__type=Recipient.STREAM, recipient__type_id=stream.id): return True return False except Subscription.DoesNotExist: return False def do_finish_tutorial(user_profile): user_profile.tutorial_status = UserProfile.TUTORIAL_FINISHED user_profile.save() # We want to add the default subs list iff there were no subs try: prereg_user = PreregistrationUser.objects.get(email=user_profile.email) streams = prereg_user.streams.all() except PreregistrationUser.DoesNotExist: # If the user signed up via a mechanism other than # PreregistrationUser (e.g. Google Apps connect or MitUser), # just give them the default streams. streams = [] if len(streams) == 0: streams = get_default_subs(user_profile) for stream in streams: do_add_subscription(user_profile, stream) def gather_subscriptions(user_profile): # For now, don't display subscriptions for private messages. subs = Subscription.objects.select_related().filter( user_profile = user_profile, active = True, recipient__type = Recipient.STREAM) stream_ids = [sub.recipient.type_id for sub in subs] stream_hash = {} for stream in Stream.objects.filter(id__in=stream_ids): stream_hash[stream.id] = (stream.name, stream.invite_only) result = [] for sub in subs: (stream_name, invite_only) = stream_hash[sub.recipient.type_id] result.append({'name': stream_name, 'in_home_view': sub.in_home_view, 'invite_only': invite_only, 'color': sub.color, 'notifications': sub.notifications}) return sorted(result) @cache_with_key(status_dict_cache_key, timeout=60) def get_status_dict(requesting_user_profile): user_statuses = defaultdict(dict) # Return no status info for MIT if requesting_user_profile.realm.domain == 'mit.edu': return user_statuses for presence in UserPresence.objects.filter(user_profile__realm=requesting_user_profile.realm, user_profile__is_active=True) \ .select_related('user_profile', 'client'): user_statuses[presence.user_profile.email][presence.client.name] = presence.to_dict() return user_statuses def do_events_register(user_profile, apply_markdown=True, event_types=None): queue_id = request_event_queue(user_profile, apply_markdown, event_types) if queue_id is None: raise JsonableError("Could not allocate event queue") ret = {'queue_id': queue_id} if event_types is not None: event_types = set(event_types) # Fetch initial data. When event_types is not specified, clients # want all event types. if event_types is None or "message" in event_types: # The client should use get_old_messages() to fetch messages # starting with the max_message_id. They will get messages # newer than that ID via get_events() messages = Message.objects.filter(usermessage__user_profile=user_profile).order_by('-id')[:1] if messages: ret['max_message_id'] = messages[0].id else: ret['max_message_id'] = -1 if event_types is None or "pointer" in event_types: ret['pointer'] = user_profile.pointer if event_types is None or "realm_user" in event_types: ret['realm_users'] = [{'email' : profile.email, 'full_name' : profile.full_name} for profile in UserProfile.objects.select_related().filter(realm=user_profile.realm, is_active=True)] if event_types is None or "subscription" in event_types: ret['subscriptions'] = gather_subscriptions(user_profile) if event_types is None or "presence" in event_types: ret['presences'] = get_status_dict(user_profile) # Apply events that came in while we were fetching initial data events = get_user_events(user_profile, queue_id, -1) for event in events: if event['type'] == "message": ret['max_message_id'] = max(ret['max_message_id'], event['message']['id']) elif event['type'] == "pointer": ret['pointer'] = max(ret['pointer'], event['pointer']) elif event['type'] == "realm_user": if event['op'] == "add": ret['realm_users'].append(event['person']) elif event['op'] == "remove": person = event['person'] ret['realm_users'] = filter(lambda p: p['email'] != person['email'], ret['realm_users']) elif event['type'] == "subscription": if event['op'] == "add": ret['subscriptions'].append(event['subscription']) elif event['op'] == "remove": sub = event['subscription'] ret['subscriptions'] = filter(lambda s: s['name'] != sub['name'], ret['subscriptions']) elif event['type'] == "presence": ret['presences'][event['email']] = event['presence'] if events: ret['last_event_id'] = events[-1]['id'] else: ret['last_event_id'] = -1 return ret def do_send_confirmation_email(invitee, referrer): """ Send the confirmation/welcome e-mail to an invited user. `invitee` is a PreregistrationUser. `referrer` is a UserProfile. """ Confirmation.objects.send_confirmation( invitee, invitee.email, additional_context={'referrer': referrer}, subject_template_path='confirmation/invite_email_subject.txt', body_template_path='confirmation/invite_email_body.txt')