mirror of https://github.com/zulip/zulip.git
391 lines
16 KiB
Python
391 lines
16 KiB
Python
from django.conf import settings
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from django.contrib.auth.models import User
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from zephyr.lib.context_managers import lockfile
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from zephyr.models import Realm, Stream, UserProfile, UserActivity, \
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Subscription, Recipient, Message, UserMessage, \
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DefaultStream, StreamColor, \
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MAX_MESSAGE_LENGTH, get_client, get_display_recipient, get_stream
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from django.db import transaction, IntegrityError
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from zephyr.lib.initial_password import initial_password
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from zephyr.lib.cache import cache_with_key
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from zephyr.lib.timestamp import timestamp_to_datetime
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from zephyr.lib.message_cache import cache_save_message
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from django.utils import timezone
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from django.contrib.auth.models import UserManager
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import subprocess
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import simplejson
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import time
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import traceback
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import re
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import requests
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import hashlib
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import base64
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import datetime
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import os
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import platform
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from os import path
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# Store an event in the log for re-importing messages
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def log_event(event):
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if "timestamp" not in event:
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event["timestamp"] = time.time()
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if not path.exists(settings.EVENT_LOG_DIR):
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os.mkdir(settings.EVENT_LOG_DIR)
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template = path.join(settings.EVENT_LOG_DIR,
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'%s.' + platform.node()
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+ datetime.datetime.now().strftime('.%Y-%m-%d'))
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with lockfile(template % ('lock',)):
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with open(template % ('events',), 'a') as log:
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log.write(simplejson.dumps(event) + '\n')
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# create_user_hack is the same as Django's User.objects.create_user,
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# except that we don't save to the database so it can used in
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# bulk_creates
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def create_user_hack(username, password, email, active):
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now = timezone.now()
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email = UserManager.normalize_email(email)
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user = User(username=username, email=email,
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is_staff=False, is_active=active, is_superuser=False,
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last_login=now, date_joined=now)
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if active:
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user.set_password(password)
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else:
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user.set_unusable_password()
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return user
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def create_user_base(email, password, active=True):
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# NB: the result of Base32 + truncation is not a valid Base32 encoding.
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# It's just a unique alphanumeric string.
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# Use base32 instead of base64 so we don't have to worry about mixed case.
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# Django imposes a limit of 30 characters on usernames.
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email_hash = hashlib.sha256(settings.HASH_SALT + email).digest()
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username = base64.b32encode(email_hash)[:30]
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return create_user_hack(username, password, email, active)
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def create_user(email, password, realm, full_name, short_name,
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active=True):
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user = create_user_base(email=email, password=password,
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active=active)
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user.save()
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return UserProfile.create(user, realm, full_name, short_name)
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def do_create_user(email, password, realm, full_name, short_name,
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active=True):
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log_event({'type': 'user_created',
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'timestamp': time.time(),
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'full_name': full_name,
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'short_name': short_name,
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'user': email})
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return create_user(email, password, realm, full_name, short_name, active)
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def compute_mit_user_fullname(email):
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try:
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# Input is either e.g. starnine@mit.edu or user|CROSSREALM.INVALID@mit.edu
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match_user = re.match(r'^([a-zA-Z0-9_.-]+)(\|.+)?@mit\.edu$', email.lower())
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if match_user and match_user.group(2) is None:
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dns_query = "%s.passwd.ns.athena.mit.edu" % (match_user.group(1),)
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proc = subprocess.Popen(['host', '-t', 'TXT', dns_query],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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out, _err_unused = proc.communicate()
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if proc.returncode == 0:
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# Parse e.g. 'starnine:*:84233:101:Athena Consulting Exchange User,,,:/mit/starnine:/bin/bash'
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# for the 4th passwd entry field, aka the person's name.
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hesiod_name = out.split(':')[4].split(',')[0].strip()
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if hesiod_name == "":
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return email
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return hesiod_name
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elif match_user:
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return match_user.group(1).lower() + "@" + match_user.group(2).upper()[1:]
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except:
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print ("Error getting fullname for %s:" % (email,))
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traceback.print_exc()
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return email.lower()
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@transaction.commit_on_success
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def create_mit_user_if_needed(realm, email):
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try:
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return UserProfile.objects.get(user__email=email)
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except UserProfile.DoesNotExist:
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try:
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# Forge a user for this person
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return create_user(email, initial_password(email), realm,
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compute_mit_user_fullname(email), email.split("@")[0],
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active=False)
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except IntegrityError:
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# Unless we raced with another thread doing the same
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# thing, in which case we should get the user they made
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transaction.commit()
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return UserProfile.objects.get(user__email=email)
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def log_message(message):
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if not message.sending_client.name.startswith("test:"):
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log_event(message.to_log_dict())
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user_hash = {}
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def get_user_profile_by_id(uid):
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if uid in user_hash:
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return user_hash[uid]
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return UserProfile.objects.select_related().get(id=uid)
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def do_send_message(message, no_log=False):
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# Log the message to our message log for populate_db to refill
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if not no_log:
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log_message(message)
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if message.recipient.type == Recipient.PERSONAL:
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recipients = list(set([get_user_profile_by_id(message.recipient.type_id),
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get_user_profile_by_id(message.sender_id)]))
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# For personals, you send out either 1 or 2 copies of the message, for
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# personals to yourself or to someone else, respectively.
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assert((len(recipients) == 1) or (len(recipients) == 2))
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elif (message.recipient.type == Recipient.STREAM or
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message.recipient.type == Recipient.HUDDLE):
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recipients = [s.user_profile for
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s in Subscription.objects.select_related().filter(recipient=message.recipient, active=True)]
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else:
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raise ValueError('Bad recipient type')
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# Save the message receipts in the database
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# TODO: Use bulk_create here
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with transaction.commit_on_success():
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message.save()
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for user_profile in recipients:
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# Only deliver messages to "active" user accounts
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if user_profile.user.is_active:
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UserMessage(user_profile=user_profile, message=message).save()
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cache_save_message(message)
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# We can only publish messages to longpolling clients if the Tornado server is running.
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if settings.TORNADO_SERVER:
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# Render Markdown etc. here and store (automatically) in
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# memcached, so that the single-threaded Tornado server
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# doesn't have to.
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message.to_dict(apply_markdown=True)
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message.to_dict(apply_markdown=False)
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data = dict(
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secret = settings.SHARED_SECRET,
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message = message.id,
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users = simplejson.dumps([str(user.id) for user in recipients]))
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if message.recipient.type == Recipient.STREAM:
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# Note: This is where authorization for single-stream
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# get_updates happens! We only attach stream data to the
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# notify_new_message request if it's a public stream,
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# ensuring that in the tornado server, non-public stream
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# messages are only associated to their subscribed users.
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stream = Stream.objects.get(id=message.recipient.type_id)
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if stream.is_public():
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data['realm_id'] = stream.realm.id
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data['stream_name'] = stream.name
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requests.post(settings.TORNADO_SERVER + '/notify_new_message', data=data)
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def create_stream_if_needed(realm, stream_name, invite_only=False):
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(stream, created) = Stream.objects.get_or_create(
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realm=realm, name__iexact=stream_name,
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defaults={'name': stream_name, 'invite_only': invite_only})
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if created:
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Recipient.objects.create(type_id=stream.id, type=Recipient.STREAM)
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return stream, created
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def internal_send_message(sender_email, recipient_type, recipient,
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subject, content):
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if len(content) > MAX_MESSAGE_LENGTH:
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content = content[0:3900] + "\n\n[message was too long and has been truncated]"
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message = Message()
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message.sender = UserProfile.objects.get(user__email=sender_email)
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if recipient_type == Recipient.STREAM:
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stream, _ = create_stream_if_needed(message.sender.realm, recipient)
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type_id = stream.id
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else:
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type_id = UserProfile.objects.get(user__email=recipient).id
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message.recipient = Recipient.objects.get(type_id=type_id, type=recipient_type)
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message.subject = subject
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message.content = content
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message.pub_date = timezone.now()
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message.sending_client = get_client("Internal")
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do_send_message(message)
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def do_add_subscription(user_profile, stream, no_log=False):
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recipient = Recipient.objects.get(type_id=stream.id,
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type=Recipient.STREAM)
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(subscription, created) = Subscription.objects.get_or_create(
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user_profile=user_profile, recipient=recipient,
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defaults={'active': True})
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did_subscribe = created
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if not subscription.active:
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did_subscribe = True
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subscription.active = True
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subscription.save()
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if did_subscribe and not no_log:
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log_event({'type': 'subscription_added',
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'user': user_profile.user.email,
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'name': stream.name,
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'domain': stream.realm.domain})
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return did_subscribe
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def do_remove_subscription(user_profile, stream, no_log=False):
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recipient = Recipient.objects.get(type_id=stream.id,
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type=Recipient.STREAM)
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maybe_sub = Subscription.objects.filter(user_profile=user_profile,
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recipient=recipient)
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if len(maybe_sub) == 0:
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return False
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subscription = maybe_sub[0]
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did_remove = subscription.active
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subscription.active = False
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subscription.save()
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if did_remove and not no_log:
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log_event({'type': 'subscription_removed',
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'user': user_profile.user.email,
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'name': stream.name,
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'domain': stream.realm.domain})
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return did_remove
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def log_subscription_property_change(user_email, property, property_dict):
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event = {'type': 'subscription_property',
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'property': property,
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'user': user_email}
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event.update(property_dict)
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log_event(event)
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def do_activate_user(user, log=True, join_date=timezone.now()):
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user.is_active = True
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user.set_password(initial_password(user.email))
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user.date_joined = join_date
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user.save()
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if log:
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log_event({'type': 'user_activated',
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'user': user.email})
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def do_change_password(user, password, log=True, commit=True):
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user.set_password(password)
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if commit:
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user.save()
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if log:
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log_event({'type': 'user_change_password',
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'user': user.email,
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'pwhash': user.password})
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def do_change_full_name(user_profile, full_name, log=True):
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user_profile.full_name = full_name
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user_profile.save()
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if log:
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log_event({'type': 'user_change_full_name',
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'user': user_profile.user.email,
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'full_name': full_name})
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def do_create_realm(domain, replay=False):
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realm, created = Realm.objects.get_or_create(domain=domain)
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if created and not replay:
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# Log the event
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log_event({"type": "realm_created",
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"domain": domain})
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# Sent a notification message
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message = Message()
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message.sender = UserProfile.objects.get(user__email="humbug+signups@humbughq.com")
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stream, _ = create_stream_if_needed(message.sender.realm, "signups")
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message.recipient = Recipient.objects.get(type_id=stream.id, type=Recipient.STREAM)
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message.subject = domain
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message.content = "Signups enabled."
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message.pub_date = timezone.now()
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message.sending_client = get_client("Internal")
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do_send_message(message)
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return (realm, created)
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def do_change_enable_desktop_notifications(user_profile, enable_desktop_notifications, log=True):
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user_profile.enable_desktop_notifications = enable_desktop_notifications
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user_profile.save()
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if log:
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log_event({'type': 'enable_desktop_notifications_changed',
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'user': user_profile.user.email,
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'enable_desktop_notifications': enable_desktop_notifications})
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def set_default_streams(realm, stream_names):
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DefaultStream.objects.filter(realm=realm).delete()
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for stream_name in stream_names:
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stream, _ = create_stream_if_needed(realm, stream_name)
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DefaultStream.objects.create(stream=stream, realm=realm)
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def add_default_subs(user_profile):
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for default in DefaultStream.objects.filter(realm=user_profile.realm):
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do_add_subscription(user_profile, default.stream)
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@transaction.commit_on_success
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def do_update_user_activity(user_profile, client, query, log_time):
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try:
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(activity, created) = UserActivity.objects.get_or_create(
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user_profile = user_profile,
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client = client,
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query = query,
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defaults={'last_visit': log_time, 'count': 0})
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except IntegrityError:
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transaction.commit()
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activity = UserActivity.objects.get(user_profile = user_profile,
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client = client,
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query = query)
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activity.count += 1
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activity.last_visit = log_time
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activity.save()
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def process_user_activity_event(event):
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user_profile = UserProfile.objects.get(id=event["user_profile_id"])
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client = get_client(event["client"])
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log_time = timestamp_to_datetime(event["time"])
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query = event["query"]
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return do_update_user_activity(user_profile, client, query, log_time)
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def subscribed_to_stream(user_profile, stream):
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try:
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if Subscription.objects.get(user_profile=user_profile,
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active=True,
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recipient__type=Recipient.STREAM,
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recipient__type_id=stream.id):
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return True
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return False
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except Subscription.DoesNotExist:
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return False
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def gather_subscriptions(user_profile):
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# This is a little awkward because the StreamColor table has foreign keys
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# to Subscription, but not vice versa, and not all Subscriptions have a
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# StreamColor.
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#
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# We could do this with a single OUTER JOIN query but Django's ORM does
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# not provide a simple way to specify one.
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# For now, don't display the subscription for your ability to receive personals.
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subs = Subscription.objects.filter(
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user_profile = user_profile,
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active = True,
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recipient__type = Recipient.STREAM)
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with_color = StreamColor.objects.filter(subscription__in = subs).select_related()
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no_color = subs.exclude(id__in = with_color.values('subscription_id')).select_related()
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result = []
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for sc in with_color:
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stream_name = get_display_recipient(sc.subscription.recipient)
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result.append({'name': stream_name,
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'in_home_view': sc.subscription.in_home_view,
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'invite_only': get_stream(stream_name, user_profile.realm).invite_only,
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'color': sc.color})
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for sub in no_color:
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stream_name = get_display_recipient(sub.recipient)
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result.append({'name': stream_name,
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'in_home_view': sub.in_home_view,
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'invite_only': get_stream(stream_name, user_profile.realm).invite_only,
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'color': StreamColor.DEFAULT_STREAM_COLOR})
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return sorted(result)
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