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zulip/zerver/models.py

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from __future__ import absolute_import
from typing import Any, DefaultDict, Dict, List, Set, Tuple, TypeVar, Text, \
Union, Optional, Sequence, AbstractSet, Pattern, AnyStr, Callable, Iterable
from typing.re import Match
from zerver.lib.str_utils import NonBinaryStr
from django.db import models
from django.db.models.query import QuerySet
from django.db.models import Manager, CASCADE
from django.conf import settings
from django.contrib.auth.models import AbstractBaseUser, UserManager, \
PermissionsMixin
import django.contrib.auth
from django.core.exceptions import ValidationError
from django.core.validators import URLValidator, MinLengthValidator, \
RegexValidator
from django.dispatch import receiver
from zerver.lib.cache import cache_with_key, flush_user_profile, flush_realm, \
user_profile_by_id_cache_key, user_profile_by_email_cache_key, \
user_profile_cache_key, generic_bulk_cached_fetch, cache_set, flush_stream, \
display_recipient_cache_key, cache_delete, \
get_stream_cache_key, active_user_dicts_in_realm_cache_key, \
bot_dicts_in_realm_cache_key, active_user_dict_fields, \
bot_dict_fields, flush_message, bot_profile_cache_key
from zerver.lib.utils import make_safe_digest, generate_random_token
from zerver.lib.str_utils import ModelReprMixin
from django.db import transaction
from django.utils.timezone import now as timezone_now
from django.contrib.sessions.models import Session
from zerver.lib.timestamp import datetime_to_timestamp
from django.db.models.signals import pre_save, post_save, post_delete
from django.utils.translation import ugettext_lazy as _
from zerver.lib import cache
from zerver.lib.validator import check_int, check_float, check_string, \
check_short_string
from django.utils.encoding import force_text
from bitfield import BitField
from bitfield.types import BitHandler
from collections import defaultdict
from datetime import timedelta
import pylibmc
import re
import logging
import sre_constants
import time
import datetime
import sys
MAX_SUBJECT_LENGTH = 60
MAX_MESSAGE_LENGTH = 10000
MAX_LANGUAGE_ID_LENGTH = 50 # type: int
STREAM_NAMES = TypeVar('STREAM_NAMES', Sequence[Text], AbstractSet[Text])
# Doing 1000 remote cache requests to get_display_recipient is quite slow,
# so add a local cache as well as the remote cache cache.
per_request_display_recipient_cache = {} # type: Dict[int, List[Dict[str, Any]]]
def get_display_recipient_by_id(recipient_id, recipient_type, recipient_type_id):
# type: (int, int, Optional[int]) -> Union[Text, List[Dict[str, Any]]]
"""
returns: an object describing the recipient (using a cache).
If the type is a stream, the type_id must be an int; a string is returned.
Otherwise, type_id may be None; an array of recipient dicts is returned.
"""
if recipient_id not in per_request_display_recipient_cache:
result = get_display_recipient_remote_cache(recipient_id, recipient_type, recipient_type_id)
per_request_display_recipient_cache[recipient_id] = result
return per_request_display_recipient_cache[recipient_id]
def get_display_recipient(recipient):
# type: (Recipient) -> Union[Text, List[Dict[str, Any]]]
return get_display_recipient_by_id(
recipient.id,
recipient.type,
recipient.type_id
)
def flush_per_request_caches():
# type: () -> None
global per_request_display_recipient_cache
per_request_display_recipient_cache = {}
global per_request_realm_filters_cache
per_request_realm_filters_cache = {}
@cache_with_key(lambda *args: display_recipient_cache_key(args[0]),
timeout=3600*24*7)
def get_display_recipient_remote_cache(recipient_id, recipient_type, recipient_type_id):
# type: (int, int, Optional[int]) -> Union[Text, List[Dict[str, Any]]]
"""
returns: an appropriate object describing the recipient. For a
stream this will be the stream name as a string. For a huddle or
personal, it will be an array of dicts about each recipient.
"""
if recipient_type == Recipient.STREAM:
assert recipient_type_id is not None
stream = Stream.objects.get(id=recipient_type_id)
return stream.name
# The main priority for ordering here is being deterministic.
# Right now, we order by ID, which matches the ordering of user
# names in the left sidebar.
user_profile_list = (UserProfile.objects.filter(subscription__recipient_id=recipient_id)
.select_related()
.order_by('id'))
return [{'email': user_profile.email,
'full_name': user_profile.full_name,
'short_name': user_profile.short_name,
'id': user_profile.id,
'is_mirror_dummy': user_profile.is_mirror_dummy} for user_profile in user_profile_list]
def get_realm_emoji_cache_key(realm):
# type: (Realm) -> Text
return u'realm_emoji:%s' % (realm.id,)
class Realm(ModelReprMixin, models.Model):
MAX_REALM_NAME_LENGTH = 40
MAX_REALM_SUBDOMAIN_LENGTH = 40
AUTHENTICATION_FLAGS = [u'Google', u'Email', u'GitHub', u'LDAP', u'Dev', u'RemoteUser']
name = models.CharField(max_length=MAX_REALM_NAME_LENGTH, null=True) # type: Optional[Text]
string_id = models.CharField(max_length=MAX_REALM_SUBDOMAIN_LENGTH, unique=True) # type: Text
restricted_to_domain = models.BooleanField(default=False) # type: bool
invite_required = models.BooleanField(default=True) # type: bool
invite_by_admins_only = models.BooleanField(default=False) # type: bool
inline_image_preview = models.BooleanField(default=True) # type: bool
inline_url_embed_preview = models.BooleanField(default=True) # type: bool
create_stream_by_admins_only = models.BooleanField(default=False) # type: bool
add_emoji_by_admins_only = models.BooleanField(default=False) # type: bool
mandatory_topics = models.BooleanField(default=False) # type: bool
show_digest_email = models.BooleanField(default=True) # type: bool
name_changes_disabled = models.BooleanField(default=False) # type: bool
email_changes_disabled = models.BooleanField(default=False) # type: bool
description = models.TextField(null=True) # type: Optional[Text]
allow_message_editing = models.BooleanField(default=True) # type: bool
DEFAULT_MESSAGE_CONTENT_EDIT_LIMIT_SECONDS = 600 # if changed, also change in admin.js
message_content_edit_limit_seconds = models.IntegerField(default=DEFAULT_MESSAGE_CONTENT_EDIT_LIMIT_SECONDS) # type: int
message_retention_days = models.IntegerField(null=True) # type: Optional[int]
allow_edit_history = models.BooleanField(default=True) # type: bool
# Valid org_types are {CORPORATE, COMMUNITY}
CORPORATE = 1
COMMUNITY = 2
org_type = models.PositiveSmallIntegerField(default=CORPORATE) # type: int
date_created = models.DateTimeField(default=timezone_now) # type: datetime.datetime
notifications_stream = models.ForeignKey('Stream', related_name='+', null=True, blank=True, on_delete=CASCADE) # type: Optional[Stream]
deactivated = models.BooleanField(default=False) # type: bool
default_language = models.CharField(default=u'en', max_length=MAX_LANGUAGE_ID_LENGTH) # type: Text
authentication_methods = BitField(flags=AUTHENTICATION_FLAGS,
default=2**31 - 1) # type: BitHandler
waiting_period_threshold = models.PositiveIntegerField(default=0) # type: int
# Define the types of the various automatically managed properties
property_types = dict(
add_emoji_by_admins_only=bool,
allow_edit_history=bool,
create_stream_by_admins_only=bool,
default_language=Text,
description=Text,
email_changes_disabled=bool,
invite_required=bool,
invite_by_admins_only=bool,
inline_image_preview=bool,
inline_url_embed_preview=bool,
mandatory_topics=bool,
message_retention_days=(int, type(None)),
name=Text,
name_changes_disabled=bool,
restricted_to_domain=bool,
waiting_period_threshold=int,
) # type: Dict[str, Union[type, Tuple[type, ...]]]
ICON_FROM_GRAVATAR = u'G'
ICON_UPLOADED = u'U'
ICON_SOURCES = (
(ICON_FROM_GRAVATAR, 'Hosted by Gravatar'),
(ICON_UPLOADED, 'Uploaded by administrator'),
)
icon_source = models.CharField(default=ICON_FROM_GRAVATAR, choices=ICON_SOURCES,
max_length=1) # type: Text
icon_version = models.PositiveSmallIntegerField(default=1) # type: int
DEFAULT_NOTIFICATION_STREAM_NAME = u'announce'
def authentication_methods_dict(self):
# type: () -> Dict[Text, bool]
"""Returns the a mapping from authentication flags to their status,
showing only those authentication flags that are supported on
the current server (i.e. if EmailAuthBackend is not configured
on the server, this will not return an entry for "Email")."""
# This mapping needs to be imported from here due to the cyclic
# dependency.
from zproject.backends import AUTH_BACKEND_NAME_MAP
ret = {} # type: Dict[Text, bool]
supported_backends = {backend.__class__ for backend in django.contrib.auth.get_backends()}
for k, v in self.authentication_methods.iteritems():
backend = AUTH_BACKEND_NAME_MAP[k]
if backend in supported_backends:
ret[k] = v
return ret
def __unicode__(self):
# type: () -> Text
return u"<Realm: %s %s>" % (self.string_id, self.id)
@cache_with_key(get_realm_emoji_cache_key, timeout=3600*24*7)
def get_emoji(self):
# type: () -> Dict[Text, Optional[Dict[str, Iterable[Text]]]]
return get_realm_emoji_uncached(self)
def get_admin_users(self):
# type: () -> Sequence[UserProfile]
# TODO: Change return type to QuerySet[UserProfile]
return UserProfile.objects.filter(realm=self, is_realm_admin=True,
is_active=True).select_related()
def get_active_users(self):
# type: () -> Sequence[UserProfile]
# TODO: Change return type to QuerySet[UserProfile]
return UserProfile.objects.filter(realm=self, is_active=True).select_related()
def get_bot_domain(self):
# type: () -> str
# Remove the port. Mainly needed for development environment.
external_host = settings.EXTERNAL_HOST.split(':')[0]
if settings.REALMS_HAVE_SUBDOMAINS or \
Realm.objects.filter(deactivated=False) \
.exclude(string_id__in=settings.SYSTEM_ONLY_REALMS).count() > 1:
return "%s.%s" % (self.string_id, external_host)
return external_host
@property
def subdomain(self):
# type: () -> Optional[Text]
if settings.REALMS_HAVE_SUBDOMAINS:
return self.string_id
return None
@property
def uri(self):
# type: () -> str
if settings.REALMS_HAVE_SUBDOMAINS and self.subdomain is not None:
return '%s%s.%s' % (settings.EXTERNAL_URI_SCHEME,
self.subdomain, settings.EXTERNAL_HOST)
return settings.SERVER_URI
@property
def host(self):
# type: () -> str
if settings.REALMS_HAVE_SUBDOMAINS and self.subdomain is not None:
return "%s.%s" % (self.subdomain, settings.EXTERNAL_HOST)
return settings.EXTERNAL_HOST
@property
def is_zephyr_mirror_realm(self):
# type: () -> bool
return self.string_id == "zephyr"
@property
def webathena_enabled(self):
# type: () -> bool
return self.is_zephyr_mirror_realm
@property
def presence_disabled(self):
# type: () -> bool
return self.is_zephyr_mirror_realm
class Meta(object):
permissions = (
('administer', "Administer a realm"),
('api_super_user', "Can send messages as other users for mirroring"),
)
post_save.connect(flush_realm, sender=Realm)
def get_realm(string_id):
# type: (Text) -> Realm
return Realm.objects.filter(string_id=string_id).first()
def completely_open(realm):
# type: (Optional[Realm]) -> bool
# This realm is completely open to everyone on the internet to
# join. E-mail addresses do not need to match a realmdomain and
# an invite from an existing user is not required.
if realm is None:
return False
return not realm.invite_required and not realm.restricted_to_domain
def get_unique_non_system_realm():
# type: () -> Optional[Realm]
realms = Realm.objects.filter(deactivated=False)
# On production installations, the (usually "zulip.com") system
# realm is an empty realm just used for system bots, so don't
# include it in this accounting.
realms = realms.exclude(string_id__in=settings.SYSTEM_ONLY_REALMS)
if len(realms) != 1:
return None
return realms[0]
def get_unique_open_realm():
# type: () -> Optional[Realm]
"""We only return a realm if there is a unique non-system-only realm,
it is completely open, and there are no subdomains."""
if settings.REALMS_HAVE_SUBDOMAINS:
return None
realm = get_unique_non_system_realm()
if realm is None:
return None
if realm.invite_required or realm.restricted_to_domain:
return None
return realm
def name_changes_disabled(realm):
# type: (Optional[Realm]) -> bool
if realm is None:
return settings.NAME_CHANGES_DISABLED
return settings.NAME_CHANGES_DISABLED or realm.name_changes_disabled
class RealmDomain(models.Model):
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
# should always be stored lowercase
domain = models.CharField(max_length=80, db_index=True) # type: Text
allow_subdomains = models.BooleanField(default=False)
class Meta(object):
unique_together = ("realm", "domain")
def can_add_realm_domain(domain):
# type: (Text) -> bool
if settings.REALMS_HAVE_SUBDOMAINS:
return True
if RealmDomain.objects.filter(domain=domain).exists():
return False
return True
# These functions should only be used on email addresses that have
# been validated via django.core.validators.validate_email
#
# Note that we need to use some care, since can you have multiple @-signs; e.g.
# "tabbott@test"@zulip.com
# is valid email address
def email_to_username(email):
# type: (Text) -> Text
return "@".join(email.split("@")[:-1]).lower()
# Returns the raw domain portion of the desired email address
def email_to_domain(email):
# type: (Text) -> Text
return email.split("@")[-1].lower()
class GetRealmByDomainException(Exception):
pass
def get_realm_by_email_domain(email):
# type: (Text) -> Optional[Realm]
if settings.REALMS_HAVE_SUBDOMAINS:
raise GetRealmByDomainException(
"Cannot get realm from email domain when settings.REALMS_HAVE_SUBDOMAINS = True")
domain = email_to_domain(email)
query = RealmDomain.objects.select_related('realm')
# Search for the longest match. If found return immediately. Since in case of
# settings.REALMS_HAVE_SUBDOMAINS=True, we have a unique mapping between the
# realm and domain so don't worry about `allow_subdomains` being True or False.
realm_domain = query.filter(domain=domain).first()
if realm_domain is not None:
return realm_domain.realm
else:
# Since we have not found any match. We will now try matching the parent domain.
# Filter out the realm domains with `allow_subdomains=False` so that we don't end
# up matching 'test.zulip.com' wrongly to (realm, 'zulip.com', False).
query = query.filter(allow_subdomains=True)
while len(domain) > 0:
subdomain, sep, domain = domain.partition('.')
realm_domain = query.filter(domain=domain).first()
if realm_domain is not None:
return realm_domain.realm
return None
# Is a user with the given email address allowed to be in the given realm?
# (This function does not check whether the user has been invited to the realm.
# So for invite-only realms, this is the test for whether a user can be invited,
# not whether the user can sign up currently.)
def email_allowed_for_realm(email, realm):
# type: (Text, Realm) -> bool
if not realm.restricted_to_domain:
return True
domain = email_to_domain(email)
query = RealmDomain.objects.filter(realm=realm)
if query.filter(domain=domain).exists():
return True
else:
query = query.filter(allow_subdomains=True)
while len(domain) > 0:
subdomain, sep, domain = domain.partition('.')
if query.filter(domain=domain).exists():
return True
return False
def get_realm_domains(realm):
# type: (Realm) -> List[Dict[str, Text]]
return list(realm.realmdomain_set.values('domain', 'allow_subdomains'))
class RealmEmoji(ModelReprMixin, models.Model):
author = models.ForeignKey('UserProfile', blank=True, null=True, on_delete=CASCADE)
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
# Second part of the regex (negative lookbehind) disallows names ending with one of the punctuation characters
name = models.TextField(validators=[MinLengthValidator(1),
RegexValidator(regex=r'^[0-9a-z.\-_]+(?<![.\-_])$',
message=_("Invalid characters in emoji name"))]) # type: Text
file_name = models.TextField(db_index=True, null=True) # type: Optional[Text]
deactivated = models.BooleanField(default=False) # type: bool
PATH_ID_TEMPLATE = "{realm_id}/emoji/{emoji_file_name}"
class Meta(object):
unique_together = ("realm", "name")
def __unicode__(self):
# type: () -> Text
return u"<RealmEmoji(%s): %s %s>" % (self.realm.string_id, self.name, self.file_name)
def get_realm_emoji_uncached(realm):
# type: (Realm) -> Dict[Text, Dict[str, Any]]
d = {}
from zerver.lib.emoji import get_emoji_url
for row in RealmEmoji.objects.filter(realm=realm).select_related('author'):
author = None
if row.author:
author = {
'id': row.author.id,
'email': row.author.email,
'full_name': row.author.full_name}
d[row.name] = dict(source_url=get_emoji_url(row.file_name, row.realm_id),
deactivated=row.deactivated,
author=author)
return d
def flush_realm_emoji(sender, **kwargs):
# type: (Any, **Any) -> None
realm = kwargs['instance'].realm
cache_set(get_realm_emoji_cache_key(realm),
get_realm_emoji_uncached(realm),
timeout=3600*24*7)
post_save.connect(flush_realm_emoji, sender=RealmEmoji)
post_delete.connect(flush_realm_emoji, sender=RealmEmoji)
def filter_pattern_validator(value):
# type: (Text) -> None
regex = re.compile(r'(?:[\w\-#]*)(\(\?P<\w+>.+\))')
error_msg = 'Invalid filter pattern, you must use the following format OPTIONAL_PREFIX(?P<id>.+)'
if not regex.match(str(value)):
raise ValidationError(error_msg)
try:
re.compile(value)
except sre_constants.error:
# Regex is invalid
raise ValidationError(error_msg)
def filter_format_validator(value):
# type: (str) -> None
regex = re.compile(r'^[\.\/:a-zA-Z0-9_?=-]+%\(([a-zA-Z0-9_-]+)\)s[a-zA-Z0-9_-]*$')
if not regex.match(value):
raise ValidationError('URL format string must be in the following format: `https://example.com/%(\w+)s`')
class RealmFilter(models.Model):
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
pattern = models.TextField(validators=[filter_pattern_validator]) # type: Text
url_format_string = models.TextField(validators=[URLValidator(), filter_format_validator]) # type: Text
class Meta(object):
unique_together = ("realm", "pattern")
def __unicode__(self):
# type: () -> Text
return u"<RealmFilter(%s): %s %s>" % (self.realm.string_id, self.pattern, self.url_format_string)
def get_realm_filters_cache_key(realm_id):
# type: (int) -> Text
return u'all_realm_filters:%s' % (realm_id,)
# We have a per-process cache to avoid doing 1000 remote cache queries during page load
per_request_realm_filters_cache = {} # type: Dict[int, List[Tuple[Text, Text, int]]]
def realm_in_local_realm_filters_cache(realm_id):
# type: (int) -> bool
return realm_id in per_request_realm_filters_cache
def realm_filters_for_realm(realm_id):
# type: (int) -> List[Tuple[Text, Text, int]]
if not realm_in_local_realm_filters_cache(realm_id):
per_request_realm_filters_cache[realm_id] = realm_filters_for_realm_remote_cache(realm_id)
return per_request_realm_filters_cache[realm_id]
@cache_with_key(get_realm_filters_cache_key, timeout=3600*24*7)
def realm_filters_for_realm_remote_cache(realm_id):
# type: (int) -> List[Tuple[Text, Text, int]]
filters = []
for realm_filter in RealmFilter.objects.filter(realm_id=realm_id):
filters.append((realm_filter.pattern, realm_filter.url_format_string, realm_filter.id))
return filters
def all_realm_filters():
# type: () -> Dict[int, List[Tuple[Text, Text, int]]]
filters = defaultdict(list) # type: DefaultDict[int, List[Tuple[Text, Text, int]]]
for realm_filter in RealmFilter.objects.all():
filters[realm_filter.realm_id].append((realm_filter.pattern, realm_filter.url_format_string, realm_filter.id))
return filters
def flush_realm_filter(sender, **kwargs):
# type: (Any, **Any) -> None
realm_id = kwargs['instance'].realm_id
cache_delete(get_realm_filters_cache_key(realm_id))
try:
per_request_realm_filters_cache.pop(realm_id)
except KeyError:
pass
post_save.connect(flush_realm_filter, sender=RealmFilter)
post_delete.connect(flush_realm_filter, sender=RealmFilter)
class UserProfile(ModelReprMixin, AbstractBaseUser, PermissionsMixin):
DEFAULT_BOT = 1
"""
Incoming webhook bots are limited to only sending messages via webhooks.
Thus, it is less of a security risk to expose their API keys to third-party services,
since they can't be used to read messages.
"""
INCOMING_WEBHOOK_BOT = 2
# This value is also being used in static/js/settings_bots.js. On updating it here, update it there as well.
OUTGOING_WEBHOOK_BOT = 3
"""
Embedded bots run within the Zulip server itself; events are added to the
embedded_bots queue and then handled by a QueueProcessingWorker.
"""
EMBEDDED_BOT = 4
# For now, don't allow creating other bot types via the UI
ALLOWED_BOT_TYPES = [
DEFAULT_BOT,
INCOMING_WEBHOOK_BOT,
OUTGOING_WEBHOOK_BOT,
]
SERVICE_BOT_TYPES = [
OUTGOING_WEBHOOK_BOT,
EMBEDDED_BOT
]
# Fields from models.AbstractUser minus last_name and first_name,
# which we don't use; email is modified to make it indexed and unique.
email = models.EmailField(blank=False, db_index=True, unique=True) # type: Text
is_staff = models.BooleanField(default=False) # type: bool
is_active = models.BooleanField(default=True, db_index=True) # type: bool
is_realm_admin = models.BooleanField(default=False, db_index=True) # type: bool
is_bot = models.BooleanField(default=False, db_index=True) # type: bool
bot_type = models.PositiveSmallIntegerField(null=True, db_index=True) # type: Optional[int]
is_api_super_user = models.BooleanField(default=False, db_index=True) # type: bool
date_joined = models.DateTimeField(default=timezone_now) # type: datetime.datetime
is_mirror_dummy = models.BooleanField(default=False) # type: bool
bot_owner = models.ForeignKey('self', null=True, on_delete=models.SET_NULL) # type: Optional[UserProfile]
long_term_idle = models.BooleanField(default=False, db_index=True) # type: bool
USERNAME_FIELD = 'email'
MAX_NAME_LENGTH = 100
MIN_NAME_LENGTH = 3
API_KEY_LENGTH = 32
NAME_INVALID_CHARS = ['*', '`', '>', '"', '@']
# Our custom site-specific fields
full_name = models.CharField(max_length=MAX_NAME_LENGTH) # type: Text
short_name = models.CharField(max_length=MAX_NAME_LENGTH) # type: Text
# pointer points to Message.id, NOT UserMessage.id.
pointer = models.IntegerField() # type: int
last_pointer_updater = models.CharField(max_length=64) # type: Text
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
api_key = models.CharField(max_length=API_KEY_LENGTH) # type: Text
tos_version = models.CharField(null=True, max_length=10) # type: Optional[Text]
last_active_message_id = models.IntegerField(null=True) # type: int
### Notifications settings. ###
# Stream notifications.
enable_stream_desktop_notifications = models.BooleanField(default=False) # type: bool
enable_stream_sounds = models.BooleanField(default=False) # type: bool
# PM + @-mention notifications.
enable_desktop_notifications = models.BooleanField(default=True) # type: bool
pm_content_in_desktop_notifications = models.BooleanField(default=True) # type: bool
enable_sounds = models.BooleanField(default=True) # type: bool
enable_offline_email_notifications = models.BooleanField(default=True) # type: bool
enable_offline_push_notifications = models.BooleanField(default=True) # type: bool
enable_online_push_notifications = models.BooleanField(default=False) # type: bool
enable_digest_emails = models.BooleanField(default=True) # type: bool
# Old notification field superseded by existence of stream notification
# settings.
default_desktop_notifications = models.BooleanField(default=True) # type: bool
###
last_reminder = models.DateTimeField(default=timezone_now, null=True) # type: Optional[datetime.datetime]
rate_limits = models.CharField(default=u"", max_length=100) # type: Text # comma-separated list of range:max pairs
# Default streams
default_sending_stream = models.ForeignKey('zerver.Stream', null=True, related_name='+', on_delete=CASCADE) # type: Optional[Stream]
default_events_register_stream = models.ForeignKey('zerver.Stream', null=True, related_name='+', on_delete=CASCADE) # type: Optional[Stream]
default_all_public_streams = models.BooleanField(default=False) # type: bool
# UI vars
enter_sends = models.NullBooleanField(default=False) # type: Optional[bool]
autoscroll_forever = models.BooleanField(default=False) # type: bool
left_side_userlist = models.BooleanField(default=False) # type: bool
emoji_alt_code = models.BooleanField(default=False) # type: bool
# display settings
twenty_four_hour_time = models.BooleanField(default=False) # type: bool
default_language = models.CharField(default=u'en', max_length=MAX_LANGUAGE_ID_LENGTH) # type: Text
high_contrast_mode = models.BooleanField(default=False) # type: bool
# Hours to wait before sending another email to a user
EMAIL_REMINDER_WAITPERIOD = 24
# Minutes to wait before warning a bot owner that their bot sent a message
# to a nonexistent stream
BOT_OWNER_STREAM_ALERT_WAITPERIOD = 1
AVATAR_FROM_GRAVATAR = u'G'
AVATAR_FROM_USER = u'U'
AVATAR_SOURCES = (
(AVATAR_FROM_GRAVATAR, 'Hosted by Gravatar'),
(AVATAR_FROM_USER, 'Uploaded by user'),
)
avatar_source = models.CharField(default=AVATAR_FROM_GRAVATAR, choices=AVATAR_SOURCES, max_length=1) # type: Text
avatar_version = models.PositiveSmallIntegerField(default=1) # type: int
TUTORIAL_WAITING = u'W'
TUTORIAL_STARTED = u'S'
TUTORIAL_FINISHED = u'F'
TUTORIAL_STATES = ((TUTORIAL_WAITING, "Waiting"),
(TUTORIAL_STARTED, "Started"),
(TUTORIAL_FINISHED, "Finished"))
tutorial_status = models.CharField(default=TUTORIAL_WAITING, choices=TUTORIAL_STATES, max_length=1) # type: Text
# Contains serialized JSON of the form:
# [("step 1", true), ("step 2", false)]
# where the second element of each tuple is if the step has been
# completed.
onboarding_steps = models.TextField(default=u'[]') # type: Text
alert_words = models.TextField(default=u'[]') # type: Text # json-serialized list of strings
# Contains serialized JSON of the form:
# [["social", "mit"], ["devel", "ios"]]
muted_topics = models.TextField(default=u'[]') # type: Text
objects = UserManager() # type: UserManager
DEFAULT_UPLOADS_QUOTA = 1024*1024*1024
quota = models.IntegerField(default=DEFAULT_UPLOADS_QUOTA) # type: int
# The maximum length of a timezone in pytz.all_timezones is 32.
# Setting max_length=40 is a safe choice.
# In Django, the convention is to use empty string instead of Null
# for text based fields. For more information, see
# https://docs.djangoproject.com/en/1.10/ref/models/fields/#django.db.models.Field.null.
timezone = models.CharField(max_length=40, default=u'') # type: Text
# Emojisets
APPLE_EMOJISET = u'apple'
EMOJIONE_EMOJISET = u'emojione'
GOOGLE_EMOJISET = u'google'
TWITTER_EMOJISET = u'twitter'
EMOJISET_CHOICES = ((APPLE_EMOJISET, _("Apple style")),
(EMOJIONE_EMOJISET, _("Emoji One style")),
(GOOGLE_EMOJISET, _("Google style")),
(TWITTER_EMOJISET, _("Twitter style")))
emojiset = models.CharField(default=GOOGLE_EMOJISET, choices=EMOJISET_CHOICES, max_length=20) # type: Text
# Define the types of the various automatically managed properties
property_types = dict(
default_language=Text,
emoji_alt_code=bool,
emojiset=Text,
left_side_userlist=bool,
timezone=Text,
twenty_four_hour_time=bool,
high_contrast_mode=bool,
)
notification_setting_types = dict(
enable_desktop_notifications=bool,
enable_digest_emails=bool,
enable_offline_email_notifications=bool,
enable_offline_push_notifications=bool,
enable_online_push_notifications=bool,
enable_sounds=bool,
enable_stream_desktop_notifications=bool,
enable_stream_sounds=bool,
pm_content_in_desktop_notifications=bool,
)
@property
def profile_data(self):
# type: () -> List[Dict[str, Union[int, float, Text]]]
values = CustomProfileFieldValue.objects.filter(user_profile=self)
user_data = {v.field_id: v.value for v in values}
data = [] # type: List[Dict[str, Union[int, float, Text]]]
for field in custom_profile_fields_for_realm(self.realm_id):
value = user_data.get(field.id, None)
field_type = field.field_type
if value is not None:
converter = field.FIELD_CONVERTERS[field_type]
value = converter(value)
field_data = {} # type: Dict[str, Union[int, float, Text]]
for k, v in field.as_dict().items():
field_data[k] = v
field_data['value'] = value
data.append(field_data)
return data
def can_admin_user(self, target_user):
# type: (UserProfile) -> bool
"""Returns whether this user has permission to modify target_user"""
if target_user.bot_owner == self:
return True
elif self.is_realm_admin and self.realm == target_user.realm:
return True
else:
return False
def __unicode__(self):
# type: () -> Text
return u"<UserProfile: %s %s>" % (self.email, self.realm)
@property
def is_incoming_webhook(self):
# type: () -> bool
return self.bot_type == UserProfile.INCOMING_WEBHOOK_BOT
@property
def is_outgoing_webhook_bot(self):
# type: () -> bool
return self.bot_type == UserProfile.OUTGOING_WEBHOOK_BOT
@property
def is_embedded_bot(self):
# type: () -> bool
return self.bot_type == UserProfile.EMBEDDED_BOT
@property
def is_service_bot(self):
# type: () -> bool
return self.is_bot and self.bot_type in UserProfile.SERVICE_BOT_TYPES
@staticmethod
def emojiset_choices():
# type: () -> Dict[Text, Text]
return {emojiset[0]: force_text(emojiset[1]) for emojiset in UserProfile.EMOJISET_CHOICES}
@staticmethod
def emails_from_ids(user_ids):
# type: (Sequence[int]) -> Dict[int, Text]
rows = UserProfile.objects.filter(id__in=user_ids).values('id', 'email')
return {row['id']: row['email'] for row in rows}
def can_create_streams(self):
# type: () -> bool
diff = (timezone_now() - self.date_joined).days
if self.is_realm_admin:
return True
elif self.realm.create_stream_by_admins_only:
return False
if diff >= self.realm.waiting_period_threshold:
return True
return False
def major_tos_version(self):
# type: () -> int
if self.tos_version is not None:
return int(self.tos_version.split('.')[0])
else:
return -1
def receives_offline_notifications(user_profile):
# type: (UserProfile) -> bool
return ((user_profile.enable_offline_email_notifications or
user_profile.enable_offline_push_notifications) and
not user_profile.is_bot)
def receives_online_notifications(user_profile):
# type: (UserProfile) -> bool
return (user_profile.enable_online_push_notifications and
not user_profile.is_bot)
def remote_user_to_email(remote_user):
# type: (Text) -> Text
if settings.SSO_APPEND_DOMAIN is not None:
remote_user += "@" + settings.SSO_APPEND_DOMAIN
return remote_user
# Make sure we flush the UserProfile object from our remote cache
# whenever we save it.
post_save.connect(flush_user_profile, sender=UserProfile)
class PreregistrationUser(models.Model):
email = models.EmailField() # type: Text
referred_by = models.ForeignKey(UserProfile, null=True, on_delete=CASCADE) # Optional[UserProfile]
streams = models.ManyToManyField('Stream') # type: Manager
invited_at = models.DateTimeField(auto_now=True) # type: datetime.datetime
realm_creation = models.BooleanField(default=False)
# Indicates whether the user needs a password. Users who were
# created via SSO style auth (e.g. GitHub/Google) generally do not.
password_required = models.BooleanField(default=True)
# status: whether an object has been confirmed.
# if confirmed, set to confirmation.settings.STATUS_ACTIVE
status = models.IntegerField(default=0) # type: int
realm = models.ForeignKey(Realm, null=True, on_delete=CASCADE) # type: Optional[Realm]
class EmailChangeStatus(models.Model):
new_email = models.EmailField() # type: Text
old_email = models.EmailField() # type: Text
updated_at = models.DateTimeField(auto_now=True) # type: datetime.datetime
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
# status: whether an object has been confirmed.
# if confirmed, set to confirmation.settings.STATUS_ACTIVE
status = models.IntegerField(default=0) # type: int
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
class AbstractPushDeviceToken(models.Model):
APNS = 1
GCM = 2
KINDS = (
(APNS, 'apns'),
(GCM, 'gcm'),
)
kind = models.PositiveSmallIntegerField(choices=KINDS) # type: int
# The token is a unique device-specific token that is
# sent to us from each device:
# - APNS token if kind == APNS
# - GCM registration id if kind == GCM
token = models.CharField(max_length=4096, unique=True) # type: bytes
last_updated = models.DateTimeField(auto_now=True) # type: datetime.datetime
# [optional] Contains the app id of the device if it is an iOS device
ios_app_id = models.TextField(null=True) # type: Optional[Text]
class Meta(object):
abstract = True
class PushDeviceToken(AbstractPushDeviceToken):
# The user who's device this is
user = models.ForeignKey(UserProfile, db_index=True, on_delete=CASCADE) # type: UserProfile
def generate_email_token_for_stream():
# type: () -> str
return generate_random_token(32)
class Stream(ModelReprMixin, models.Model):
MAX_NAME_LENGTH = 60
name = models.CharField(max_length=MAX_NAME_LENGTH, db_index=True) # type: Text
realm = models.ForeignKey(Realm, db_index=True, on_delete=CASCADE) # type: Realm
invite_only = models.NullBooleanField(default=False) # type: Optional[bool]
# Used by the e-mail forwarder. The e-mail RFC specifies a maximum
# e-mail length of 254, and our max stream length is 30, so we
# have plenty of room for the token.
email_token = models.CharField(
max_length=32, default=generate_email_token_for_stream) # type: str
description = models.CharField(max_length=1024, default=u'') # type: Text
date_created = models.DateTimeField(default=timezone_now) # type: datetime.datetime
deactivated = models.BooleanField(default=False) # type: bool
def __unicode__(self):
# type: () -> Text
return u"<Stream: %s>" % (self.name,)
def is_public(self):
# type: () -> bool
# All streams are private in Zephyr mirroring realms.
return not self.invite_only and not self.realm.is_zephyr_mirror_realm
class Meta(object):
unique_together = ("name", "realm")
def num_subscribers(self):
# type: () -> int
return Subscription.objects.filter(
recipient__type=Recipient.STREAM,
recipient__type_id=self.id,
user_profile__is_active=True,
active=True
).count()
# This is stream information that is sent to clients
def to_dict(self):
# type: () -> Dict[str, Any]
return dict(name=self.name,
stream_id=self.id,
description=self.description,
invite_only=self.invite_only)
post_save.connect(flush_stream, sender=Stream)
post_delete.connect(flush_stream, sender=Stream)
# The Recipient table is used to map Messages to the set of users who
# received the message. It is implemented as a set of triples (id,
# type_id, type). We have 3 types of recipients: Huddles (for group
# private messages), UserProfiles (for 1:1 private messages), and
# Streams. The recipient table maps a globally unique recipient id
# (used by the Message table) to the type-specific unique id (the
# stream id, user_profile id, or huddle id).
class Recipient(ModelReprMixin, models.Model):
type_id = models.IntegerField(db_index=True) # type: int
type = models.PositiveSmallIntegerField(db_index=True) # type: int
# Valid types are {personal, stream, huddle}
PERSONAL = 1
STREAM = 2
HUDDLE = 3
class Meta(object):
unique_together = ("type", "type_id")
# N.B. If we used Django's choice=... we would get this for free (kinda)
_type_names = {
PERSONAL: 'personal',
STREAM: 'stream',
HUDDLE: 'huddle'}
def type_name(self):
# type: () -> str
# Raises KeyError if invalid
return self._type_names[self.type]
def __unicode__(self):
# type: () -> Text
display_recipient = get_display_recipient(self)
return u"<Recipient: %s (%d, %s)>" % (display_recipient, self.type_id, self.type)
class Client(ModelReprMixin, models.Model):
name = models.CharField(max_length=30, db_index=True, unique=True) # type: Text
def __unicode__(self):
# type: () -> Text
return u"<Client: %s>" % (self.name,)
get_client_cache = {} # type: Dict[Text, Client]
def get_client(name):
# type: (Text) -> Client
# Accessing KEY_PREFIX through the module is necessary
# because we need the updated value of the variable.
cache_name = cache.KEY_PREFIX + name
if cache_name not in get_client_cache:
result = get_client_remote_cache(name)
get_client_cache[cache_name] = result
return get_client_cache[cache_name]
def get_client_cache_key(name):
# type: (Text) -> Text
return u'get_client:%s' % (make_safe_digest(name),)
@cache_with_key(get_client_cache_key, timeout=3600*24*7)
def get_client_remote_cache(name):
# type: (Text) -> Client
(client, _) = Client.objects.get_or_create(name=name)
return client
# get_stream_backend takes either a realm id or a realm
@cache_with_key(get_stream_cache_key, timeout=3600*24*7)
def get_stream_backend(stream_name, realm):
# type: (Text, Realm) -> Stream
return Stream.objects.select_related("realm").get(
name__iexact=stream_name.strip(), realm_id=realm.id)
def get_active_streams(realm):
# type: (Optional[Realm]) -> QuerySet
"""
Return all streams (including invite-only streams) that have not been deactivated.
"""
return Stream.objects.filter(realm=realm, deactivated=False)
def get_stream(stream_name, realm):
# type: (Text, Realm) -> Stream
return get_stream_backend(stream_name, realm)
def bulk_get_streams(realm, stream_names):
# type: (Realm, STREAM_NAMES) -> Dict[Text, Any]
def fetch_streams_by_name(stream_names):
# type: (List[Text]) -> Sequence[Stream]
#
# This should be just
#
# Stream.objects.select_related("realm").filter(name__iexact__in=stream_names,
# realm_id=realm_id)
#
# But chaining __in and __iexact doesn't work with Django's
# ORM, so we have the following hack to construct the relevant where clause
if len(stream_names) == 0:
return []
upper_list = ", ".join(["UPPER(%s)"] * len(stream_names))
where_clause = "UPPER(zerver_stream.name::text) IN (%s)" % (upper_list,)
return get_active_streams(realm.id).select_related("realm").extra(
where=[where_clause],
params=stream_names)
return generic_bulk_cached_fetch(lambda stream_name: get_stream_cache_key(stream_name, realm),
fetch_streams_by_name,
[stream_name.lower() for stream_name in stream_names],
id_fetcher=lambda stream: stream.name.lower())
def get_recipient_cache_key(type, type_id):
# type: (int, int) -> Text
return u"%s:get_recipient:%s:%s" % (cache.KEY_PREFIX, type, type_id,)
@cache_with_key(get_recipient_cache_key, timeout=3600*24*7)
def get_recipient(type, type_id):
# type: (int, int) -> Recipient
return Recipient.objects.get(type_id=type_id, type=type)
def bulk_get_recipients(type, type_ids):
# type: (int, List[int]) -> Dict[int, Any]
def cache_key_function(type_id):
# type: (int) -> Text
return get_recipient_cache_key(type, type_id)
def query_function(type_ids):
# type: (List[int]) -> Sequence[Recipient]
# TODO: Change return type to QuerySet[Recipient]
return Recipient.objects.filter(type=type, type_id__in=type_ids)
return generic_bulk_cached_fetch(cache_key_function, query_function, type_ids,
id_fetcher=lambda recipient: recipient.type_id)
def sew_messages_and_reactions(messages, reactions):
# type: (List[Dict[str, Any]], List[Dict[str, Any]]) -> List[Dict[str, Any]]
"""Given a iterable of messages and reactions stitch reactions
into messages.
"""
# Add all messages with empty reaction item
for message in messages:
message['reactions'] = []
# Convert list of messages into dictionary to make reaction stitching easy
converted_messages = {message['id']: message for message in messages}
for reaction in reactions:
converted_messages[reaction['message_id']]['reactions'].append(
reaction)
return list(converted_messages.values())
class AbstractMessage(ModelReprMixin, models.Model):
sender = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
recipient = models.ForeignKey(Recipient, on_delete=CASCADE) # type: Recipient
subject = models.CharField(max_length=MAX_SUBJECT_LENGTH, db_index=True) # type: Text
content = models.TextField() # type: Text
rendered_content = models.TextField(null=True) # type: Optional[Text]
rendered_content_version = models.IntegerField(null=True) # type: Optional[int]
pub_date = models.DateTimeField('date published', db_index=True) # type: datetime.datetime
sending_client = models.ForeignKey(Client, on_delete=CASCADE) # type: Client
last_edit_time = models.DateTimeField(null=True) # type: Optional[datetime.datetime]
edit_history = models.TextField(null=True) # type: Optional[Text]
has_attachment = models.BooleanField(default=False, db_index=True) # type: bool
has_image = models.BooleanField(default=False, db_index=True) # type: bool
has_link = models.BooleanField(default=False, db_index=True) # type: bool
class Meta(object):
abstract = True
def __unicode__(self):
# type: () -> Text
display_recipient = get_display_recipient(self.recipient)
return u"<%s: %s / %s / %r>" % (self.__class__.__name__, display_recipient,
self.subject, self.sender)
class ArchivedMessage(AbstractMessage):
archive_timestamp = models.DateTimeField(default=timezone_now, db_index=True) # type: datetime.datetime
class Message(AbstractMessage):
def topic_name(self):
# type: () -> Text
"""
Please start using this helper to facilitate an
eventual switch over to a separate topic table.
"""
return self.subject
def get_realm(self):
# type: () -> Realm
return self.sender.realm
def save_rendered_content(self):
# type: () -> None
self.save(update_fields=["rendered_content", "rendered_content_version"])
@staticmethod
def need_to_render_content(rendered_content, rendered_content_version, bugdown_version):
# type: (Optional[Text], Optional[int], int) -> bool
return (rendered_content is None or
rendered_content_version is None or
rendered_content_version < bugdown_version)
def to_log_dict(self):
# type: () -> Dict[str, Any]
return dict(
id = self.id,
sender_id = self.sender.id,
sender_email = self.sender.email,
sender_realm_str = self.sender.realm.string_id,
sender_full_name = self.sender.full_name,
sender_short_name = self.sender.short_name,
sending_client = self.sending_client.name,
type = self.recipient.type_name(),
recipient = get_display_recipient(self.recipient),
subject = self.topic_name(),
content = self.content,
timestamp = datetime_to_timestamp(self.pub_date))
@staticmethod
def get_raw_db_rows(needed_ids):
# type: (List[int]) -> List[Dict[str, Any]]
# This is a special purpose function optimized for
# callers like get_messages_backend().
fields = [
'id',
'subject',
'pub_date',
'last_edit_time',
'edit_history',
'content',
'rendered_content',
'rendered_content_version',
'recipient_id',
'recipient__type',
'recipient__type_id',
'sender_id',
'sending_client__name',
'sender__email',
'sender__full_name',
'sender__short_name',
'sender__realm__id',
'sender__realm__string_id',
'sender__avatar_source',
'sender__avatar_version',
'sender__is_mirror_dummy',
]
messages = Message.objects.filter(id__in=needed_ids).values(*fields)
"""Adding one-many or Many-Many relationship in values results in N X
results.
Link: https://docs.djangoproject.com/en/1.8/ref/models/querysets/#values
"""
reactions = Reaction.get_raw_db_rows(needed_ids)
return sew_messages_and_reactions(messages, reactions)
def sent_by_human(self):
# type: () -> bool
sending_client = self.sending_client.name.lower()
return (sending_client in ('zulipandroid', 'zulipios', 'zulipdesktop',
'zulipmobile', 'zulipelectron', 'snipe',
'website', 'ios', 'android')) or (
'desktop app' in sending_client)
@staticmethod
def content_has_attachment(content):
# type: (Text) -> Match
return re.search(r'[/\-]user[\-_]uploads[/\.-]', content)
@staticmethod
def content_has_image(content):
# type: (Text) -> bool
return bool(re.search(r'[/\-]user[\-_]uploads[/\.-]\S+\.(bmp|gif|jpg|jpeg|png|webp)', content, re.IGNORECASE))
@staticmethod
def content_has_link(content):
# type: (Text) -> bool
return ('http://' in content or
'https://' in content or
'/user_uploads' in content or
(settings.ENABLE_FILE_LINKS and 'file:///' in content))
@staticmethod
def is_status_message(content, rendered_content):
# type: (Text, Text) -> bool
"""
Returns True if content and rendered_content are from 'me_message'
"""
if content.startswith('/me ') and '\n' not in content:
if rendered_content.startswith('<p>') and rendered_content.endswith('</p>'):
return True
return False
def update_calculated_fields(self):
# type: () -> None
# TODO: rendered_content could also be considered a calculated field
content = self.content
self.has_attachment = bool(Message.content_has_attachment(content))
self.has_image = bool(Message.content_has_image(content))
self.has_link = bool(Message.content_has_link(content))
@receiver(pre_save, sender=Message)
def pre_save_message(sender, **kwargs):
# type: (Any, **Any) -> None
if kwargs['update_fields'] is None or "content" in kwargs['update_fields']:
message = kwargs['instance']
message.update_calculated_fields()
def get_context_for_message(message):
# type: (Message) -> QuerySet[Message]
# TODO: Change return type to QuerySet[Message]
return Message.objects.filter(
recipient_id=message.recipient_id,
subject=message.subject,
id__lt=message.id,
pub_date__gt=message.pub_date - timedelta(minutes=15),
).order_by('-id')[:10]
post_save.connect(flush_message, sender=Message)
class Reaction(ModelReprMixin, models.Model):
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
message = models.ForeignKey(Message, on_delete=CASCADE) # type: Message
emoji_name = models.TextField() # type: Text
emoji_code = models.TextField() # type: Text
UNICODE_EMOJI = u'unicode_emoji'
REALM_EMOJI = u'realm_emoji'
ZULIP_EXTRA_EMOJI = u'zulip_extra_emoji'
REACTION_TYPES = ((UNICODE_EMOJI, _("Unicode emoji")),
(REALM_EMOJI, _("Realm emoji")),
(ZULIP_EXTRA_EMOJI, _("Zulip extra emoji")))
reaction_type = models.CharField(default=UNICODE_EMOJI, choices=REACTION_TYPES, max_length=30) # type: Text
class Meta(object):
unique_together = ("user_profile", "message", "emoji_name")
@staticmethod
def get_raw_db_rows(needed_ids):
# type: (List[int]) -> List[Dict[str, Any]]
fields = ['message_id', 'emoji_name', 'emoji_code', 'reaction_type',
'user_profile__email', 'user_profile__id', 'user_profile__full_name']
return Reaction.objects.filter(message_id__in=needed_ids).values(*fields)
# Whenever a message is sent, for each user subscribed to the
# corresponding Recipient object, we add a row to the UserMessage
# table indicating that that user received that message. This table
# allows us to quickly query any user's last 1000 messages to generate
# the home view.
#
# Additionally, the flags field stores metadata like whether the user
# has read the message, starred or collapsed the message, was
# mentioned in the message, etc.
#
# UserMessage is the largest table in a Zulip installation, even
# though each row is only 4 integers.
class AbstractUserMessage(ModelReprMixin, models.Model):
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
ALL_FLAGS = ['read', 'starred', 'collapsed', 'mentioned', 'wildcard_mentioned',
'summarize_in_home', 'summarize_in_stream', 'force_expand', 'force_collapse',
'has_alert_word', "historical", 'is_me_message']
flags = BitField(flags=ALL_FLAGS, default=0) # type: BitHandler
class Meta(object):
abstract = True
unique_together = ("user_profile", "message")
@staticmethod
def where_unread():
# type: () -> str
# Use this for Django ORM queries where we are getting lots
# of rows. This custom SQL plays nice with our partial indexes.
# Grep the code for example usage.
return 'flags & 1 = 0'
def flags_list(self):
# type: () -> List[str]
return [flag for flag in self.flags.keys() if getattr(self.flags, flag).is_set]
def __unicode__(self):
# type: () -> Text
display_recipient = get_display_recipient(self.message.recipient)
return u"<%s: %s / %s (%s)>" % (self.__class__.__name__, display_recipient,
self.user_profile.email, self.flags_list())
class ArchivedUserMessage(AbstractUserMessage):
message = models.ForeignKey(ArchivedMessage, on_delete=CASCADE) # type: Message
archive_timestamp = models.DateTimeField(default=timezone_now, db_index=True) # type: datetime.datetime
class UserMessage(AbstractUserMessage):
message = models.ForeignKey(Message, on_delete=CASCADE) # type: Message
def parse_usermessage_flags(val):
# type: (int) -> List[str]
flags = []
mask = 1
for flag in UserMessage.ALL_FLAGS:
if val & mask:
flags.append(flag)
mask <<= 1
return flags
class AbstractAttachment(ModelReprMixin, models.Model):
file_name = models.TextField(db_index=True) # type: Text
# path_id is a storage location agnostic representation of the path of the file.
# If the path of a file is http://localhost:9991/user_uploads/a/b/abc/temp_file.py
# then its path_id will be a/b/abc/temp_file.py.
path_id = models.TextField(db_index=True, unique=True) # type: Text
owner = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
realm = models.ForeignKey(Realm, blank=True, null=True, on_delete=CASCADE) # type: Optional[Realm]
is_realm_public = models.BooleanField(default=False) # type: bool
create_time = models.DateTimeField(default=timezone_now,
db_index=True) # type: datetime.datetime
size = models.IntegerField(null=True) # type: Optional[int]
class Meta(object):
abstract = True
def __unicode__(self):
# type: () -> Text
return u"<%s: %s>" % (self.__class__.__name__, self.file_name,)
class ArchivedAttachment(AbstractAttachment):
archive_timestamp = models.DateTimeField(default=timezone_now, db_index=True) # type: datetime.datetime
messages = models.ManyToManyField(ArchivedMessage) # type: Manager
class Attachment(AbstractAttachment):
messages = models.ManyToManyField(Message) # type: Manager
def is_claimed(self):
# type: () -> bool
return self.messages.count() > 0
def to_dict(self):
# type: () -> Dict[str, Any]
return {
'id': self.id,
'name': self.file_name,
'path_id': self.path_id,
'messages': [{
'id': m.id,
# convert to JavaScript-style UNIX timestamp so we can take
# advantage of client timezones.
'name': time.mktime(m.pub_date.timetuple()) * 1000
} for m in self.messages.all()]
}
def validate_attachment_request(user_profile, path_id):
# type: (UserProfile, Text) -> Optional[bool]
try:
attachment = Attachment.objects.get(path_id=path_id)
messages = attachment.messages.all()
if user_profile == attachment.owner:
# If you own the file, you can access it.
return True
elif attachment.is_realm_public and attachment.realm == user_profile.realm:
# Any user in the realm can access realm-public files
return True
elif UserMessage.objects.filter(user_profile=user_profile, message__in=messages).exists():
# If it was sent in a private message or private stream
# message, then anyone who received that message can access it.
return True
else:
return False
except Attachment.DoesNotExist:
return None
def get_old_unclaimed_attachments(weeks_ago):
# type: (int) -> Sequence[Attachment]
# TODO: Change return type to QuerySet[Attachment]
delta_weeks_ago = timezone_now() - datetime.timedelta(weeks=weeks_ago)
old_attachments = Attachment.objects.filter(messages=None, create_time__lt=delta_weeks_ago)
return old_attachments
class Subscription(ModelReprMixin, models.Model):
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
recipient = models.ForeignKey(Recipient, on_delete=CASCADE) # type: Recipient
active = models.BooleanField(default=True) # type: bool
in_home_view = models.NullBooleanField(default=True) # type: Optional[bool]
DEFAULT_STREAM_COLOR = u"#c2c2c2"
color = models.CharField(max_length=10, default=DEFAULT_STREAM_COLOR) # type: Text
pin_to_top = models.BooleanField(default=False) # type: bool
desktop_notifications = models.BooleanField(default=True) # type: bool
audible_notifications = models.BooleanField(default=True) # type: bool
# Combination desktop + audible notifications superseded by the
# above.
notifications = models.BooleanField(default=False) # type: bool
class Meta(object):
unique_together = ("user_profile", "recipient")
def __unicode__(self):
# type: () -> Text
return u"<Subscription: %r -> %s>" % (self.user_profile, self.recipient)
@cache_with_key(user_profile_by_id_cache_key, timeout=3600*24*7)
def get_user_profile_by_id(uid):
# type: (int) -> UserProfile
return UserProfile.objects.select_related().get(id=uid)
@cache_with_key(user_profile_by_email_cache_key, timeout=3600*24*7)
def get_user_profile_by_email(email):
# type: (Text) -> UserProfile
return UserProfile.objects.select_related().get(email__iexact=email.strip())
@cache_with_key(user_profile_cache_key, timeout=3600*24*7)
def get_user(email, realm):
# type: (Text, Realm) -> UserProfile
return UserProfile.objects.select_related().get(email__iexact=email.strip(), realm=realm)
def get_user_including_cross_realm(email, realm=None):
# type: (Text, Optional[Realm]) -> UserProfile
if email in get_cross_realm_emails():
return get_system_bot(email)
assert realm is not None
return get_user(email, realm)
@cache_with_key(bot_profile_cache_key, timeout=3600*24*7)
def get_system_bot(email):
# type: (Text) -> UserProfile
return UserProfile.objects.select_related().get(email__iexact=email.strip())
@cache_with_key(active_user_dicts_in_realm_cache_key, timeout=3600*24*7)
def get_active_user_dicts_in_realm(realm):
# type: (Realm) -> List[Dict[str, Any]]
return UserProfile.objects.filter(realm=realm, is_active=True) \
.values(*active_user_dict_fields)
@cache_with_key(bot_dicts_in_realm_cache_key, timeout=3600*24*7)
def get_bot_dicts_in_realm(realm):
# type: (Realm) -> List[Dict[str, Any]]
return UserProfile.objects.filter(realm=realm, is_bot=True).values(*bot_dict_fields)
def get_owned_bot_dicts(user_profile, include_all_realm_bots_if_admin=True):
# type: (UserProfile, bool) -> List[Dict[str, Any]]
if user_profile.is_realm_admin and include_all_realm_bots_if_admin:
result = get_bot_dicts_in_realm(user_profile.realm)
else:
result = UserProfile.objects.filter(realm=user_profile.realm, is_bot=True,
bot_owner=user_profile).values(*bot_dict_fields)
# TODO: Remove this import cycle
from zerver.lib.avatar import avatar_url_from_dict
return [{'email': botdict['email'],
'user_id': botdict['id'],
'full_name': botdict['full_name'],
'bot_type': botdict['bot_type'],
'is_active': botdict['is_active'],
'api_key': botdict['api_key'],
'default_sending_stream': botdict['default_sending_stream__name'],
'default_events_register_stream': botdict['default_events_register_stream__name'],
'default_all_public_streams': botdict['default_all_public_streams'],
'owner': botdict['bot_owner__email'],
'avatar_url': avatar_url_from_dict(botdict),
}
for botdict in result]
def get_prereg_user_by_email(email):
# type: (Text) -> PreregistrationUser
# A user can be invited many times, so only return the result of the latest
# invite.
return PreregistrationUser.objects.filter(email__iexact=email.strip()).latest("invited_at")
def get_cross_realm_emails():
# type: () -> Set[Text]
return set(settings.CROSS_REALM_BOT_EMAILS)
# The Huddle class represents a group of individuals who have had a
# Group Private Message conversation together. The actual membership
# of the Huddle is stored in the Subscription table just like with
# Streams, and a hash of that list is stored in the huddle_hash field
# below, to support efficiently mapping from a set of users to the
# corresponding Huddle object.
class Huddle(models.Model):
# TODO: We should consider whether using
# CommaSeparatedIntegerField would be better.
huddle_hash = models.CharField(max_length=40, db_index=True, unique=True) # type: Text
def get_huddle_hash(id_list):
# type: (List[int]) -> Text
id_list = sorted(set(id_list))
hash_key = ",".join(str(x) for x in id_list)
return make_safe_digest(hash_key)
def huddle_hash_cache_key(huddle_hash):
# type: (Text) -> Text
return u"huddle_by_hash:%s" % (huddle_hash,)
def get_huddle(id_list):
# type: (List[int]) -> Huddle
huddle_hash = get_huddle_hash(id_list)
return get_huddle_backend(huddle_hash, id_list)
@cache_with_key(lambda huddle_hash, id_list: huddle_hash_cache_key(huddle_hash), timeout=3600*24*7)
def get_huddle_backend(huddle_hash, id_list):
# type: (Text, List[int]) -> Huddle
with transaction.atomic():
(huddle, created) = Huddle.objects.get_or_create(huddle_hash=huddle_hash)
if created:
recipient = Recipient.objects.create(type_id=huddle.id,
type=Recipient.HUDDLE)
subs_to_create = [Subscription(recipient=recipient,
user_profile_id=user_profile_id)
for user_profile_id in id_list]
Subscription.objects.bulk_create(subs_to_create)
return huddle
def clear_database():
# type: () -> None
pylibmc.Client(['127.0.0.1']).flush_all()
model = None # type: Any
for model in [Message, Stream, UserProfile, Recipient,
Realm, Subscription, Huddle, UserMessage, Client,
DefaultStream]:
model.objects.all().delete()
Session.objects.all().delete()
class UserActivity(models.Model):
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
client = models.ForeignKey(Client, on_delete=CASCADE) # type: Client
query = models.CharField(max_length=50, db_index=True) # type: Text
count = models.IntegerField() # type: int
last_visit = models.DateTimeField('last visit') # type: datetime.datetime
class Meta(object):
unique_together = ("user_profile", "client", "query")
class UserActivityInterval(models.Model):
MIN_INTERVAL_LENGTH = datetime.timedelta(minutes=15)
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
start = models.DateTimeField('start time', db_index=True) # type: datetime.datetime
end = models.DateTimeField('end time', db_index=True) # type: datetime.datetime
class UserPresence(models.Model):
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
client = models.ForeignKey(Client, on_delete=CASCADE) # type: Client
# Valid statuses
ACTIVE = 1
IDLE = 2
timestamp = models.DateTimeField('presence changed') # type: datetime.datetime
status = models.PositiveSmallIntegerField(default=ACTIVE) # type: int
@staticmethod
def status_to_string(status):
# type: (int) -> str
if status == UserPresence.ACTIVE:
return 'active'
elif status == UserPresence.IDLE:
return 'idle'
else:
raise ValueError('Unknown status: %s' % (status,))
@staticmethod
def get_status_dict_by_user(user_profile):
# type: (UserProfile) -> DefaultDict[Any, Dict[Any, Any]]
query = UserPresence.objects.filter(user_profile=user_profile).values(
'client__name',
'status',
'timestamp',
'user_profile__email',
'user_profile__id',
'user_profile__enable_offline_push_notifications',
'user_profile__is_mirror_dummy',
)
if PushDeviceToken.objects.filter(user=user_profile).exists():
mobile_user_ids = [user_profile.id] # type: List[int]
else:
mobile_user_ids = []
return UserPresence.get_status_dicts_for_query(query, mobile_user_ids)
@staticmethod
def exclude_old_users(query):
# type: (QuerySet) -> QuerySet
two_weeks_ago = timezone_now() - datetime.timedelta(weeks=2)
return query.filter(timestamp__gte=two_weeks_ago)
@staticmethod
def get_status_dict_by_realm(realm_id):
# type: (int) -> DefaultDict[Any, Dict[Any, Any]]
query = UserPresence.objects.filter(
user_profile__realm_id=realm_id,
user_profile__is_active=True,
user_profile__is_bot=False
)
query = UserPresence.exclude_old_users(query)
query = query.values(
'client__name',
'status',
'timestamp',
'user_profile__email',
'user_profile__id',
'user_profile__enable_offline_push_notifications',
'user_profile__is_mirror_dummy',
)
mobile_user_ids = [row['user'] for row in PushDeviceToken.objects.filter(
user__realm_id=1,
user__is_active=True,
user__is_bot=False,
).distinct("user").values("user")]
return UserPresence.get_status_dicts_for_query(query, mobile_user_ids)
@staticmethod
def get_status_dicts_for_query(query, mobile_user_ids):
# type: (QuerySet, List[int]) -> DefaultDict[Any, Dict[Any, Any]]
user_statuses = defaultdict(dict) # type: DefaultDict[Any, Dict[Any, Any]]
# Order of query is important to get a latest status as aggregated status.
for row in query.order_by("user_profile__id", "-timestamp"):
info = UserPresence.to_presence_dict(
row['client__name'],
row['status'],
row['timestamp'],
push_enabled=row['user_profile__enable_offline_push_notifications'],
has_push_devices=row['user_profile__id'] in mobile_user_ids,
is_mirror_dummy=row['user_profile__is_mirror_dummy'],
)
if not user_statuses.get(row['user_profile__email']):
# Applying the latest status as aggregated status for user.
user_statuses[row['user_profile__email']]['aggregated'] = {
'status': info['status'],
'timestamp': info['timestamp'],
'client': info['client']
}
user_statuses[row['user_profile__email']][row['client__name']] = info
return user_statuses
@staticmethod
def to_presence_dict(client_name, status, dt, push_enabled=False,
has_push_devices=False, is_mirror_dummy=None):
# type: (Text, int, datetime.datetime, bool, bool, Optional[bool]) -> Dict[str, Any]
presence_val = UserPresence.status_to_string(status)
timestamp = datetime_to_timestamp(dt)
return dict(
client=client_name,
status=presence_val,
timestamp=timestamp,
pushable=(push_enabled and has_push_devices),
)
def to_dict(self):
# type: () -> Dict[str, Any]
return UserPresence.to_presence_dict(
self.client.name,
self.status,
self.timestamp
)
@staticmethod
def status_from_string(status):
# type: (NonBinaryStr) -> Optional[int]
if status == 'active':
status_val = UserPresence.ACTIVE # type: Optional[int] # See https://github.com/python/mypy/issues/2611
elif status == 'idle':
status_val = UserPresence.IDLE
else:
status_val = None
return status_val
class Meta(object):
unique_together = ("user_profile", "client")
class DefaultStream(models.Model):
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
stream = models.ForeignKey(Stream, on_delete=CASCADE) # type: Stream
class Meta(object):
unique_together = ("realm", "stream")
class AbstractScheduledJob(models.Model):
scheduled_timestamp = models.DateTimeField(db_index=True) # type: datetime.datetime
# JSON representation of arguments to consumer
data = models.TextField() # type: Text
class Meta(object):
abstract = True
class ScheduledEmail(AbstractScheduledJob):
# Exactly one of user or address should be set. These are used to
# filter the set of ScheduledEmails.
user = models.ForeignKey(UserProfile, null=True, on_delete=CASCADE) # type: UserProfile
# Just the address part of a full "name <address>" email address
address = models.EmailField(null=True, db_index=True) # type: Text
# Valid types are below
WELCOME = 1
DIGEST = 2
INVITATION_REMINDER = 3
type = models.PositiveSmallIntegerField() # type: int
EMAIL_TYPES = {
'followup_day1': ScheduledEmail.WELCOME,
'followup_day2': ScheduledEmail.WELCOME,
'digest': ScheduledEmail.DIGEST,
'invitation_reminder': ScheduledEmail.INVITATION_REMINDER,
}
class RealmAuditLog(models.Model):
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
acting_user = models.ForeignKey(UserProfile, null=True, related_name='+', on_delete=CASCADE) # type: Optional[UserProfile]
modified_user = models.ForeignKey(UserProfile, null=True, related_name='+', on_delete=CASCADE) # type: Optional[UserProfile]
modified_stream = models.ForeignKey(Stream, null=True, on_delete=CASCADE) # type: Optional[Stream]
event_last_message_id = models.IntegerField(null=True) # type: Optional[int]
event_type = models.CharField(max_length=40) # type: Text
event_time = models.DateTimeField(db_index=True) # type: datetime.datetime
# If True, event_time is an overestimate of the true time. Can be used
# by migrations when introducing a new event_type.
backfilled = models.BooleanField(default=False) # type: bool
extra_data = models.TextField(null=True) # type: Optional[Text]
class UserHotspot(models.Model):
user = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
hotspot = models.CharField(max_length=30) # type: Text
timestamp = models.DateTimeField(default=timezone_now) # type: datetime.datetime
class Meta(object):
unique_together = ("user", "hotspot")
class CustomProfileField(models.Model):
realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm
name = models.CharField(max_length=100) # type: Text
INTEGER = 1
FLOAT = 2
SHORT_TEXT = 3
LONG_TEXT = 4
FIELD_TYPE_DATA = [
# Type, Name, Validator, Converter
(INTEGER, u'Integer', check_int, int),
(FLOAT, u'Float', check_float, float),
(SHORT_TEXT, u'Short Text', check_short_string, str),
(LONG_TEXT, u'Long Text', check_string, str),
] # type: List[Tuple[int, Text, Callable[[str, Any], str], Callable[[Any], Any]]]
FIELD_VALIDATORS = {item[0]: item[2] for item in FIELD_TYPE_DATA} # type: Dict[int, Callable[[str, Any], str]]
FIELD_CONVERTERS = {item[0]: item[3] for item in FIELD_TYPE_DATA} # type: Dict[int, Callable[[Any], Any]]
FIELD_TYPE_CHOICES = [(item[0], item[1]) for item in FIELD_TYPE_DATA] # type: List[Tuple[int, Text]]
field_type = models.PositiveSmallIntegerField(choices=FIELD_TYPE_CHOICES,
default=SHORT_TEXT) # type: int
class Meta(object):
unique_together = ('realm', 'name')
def as_dict(self):
# type: () -> Dict[str, Union[int, Text]]
return {
'id': self.id,
'name': self.name,
'type': self.field_type,
}
def custom_profile_fields_for_realm(realm_id):
# type: (int) -> List[CustomProfileField]
return CustomProfileField.objects.filter(realm=realm_id).order_by('name')
class CustomProfileFieldValue(models.Model):
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
field = models.ForeignKey(CustomProfileField, on_delete=CASCADE) # type: CustomProfileField
value = models.TextField() # type: Text
class Meta(object):
unique_together = ('user_profile', 'field')
# Interfaces for services
# They provide additional functionality like parsing message to obtain query url, data to be sent to url,
# and parsing the response.
GENERIC_INTERFACE = u'GenericService'
SLACK_INTERFACE = u'SlackOutgoingWebhookService'
# A Service corresponds to either an outgoing webhook bot or an embedded bot.
# The type of Service is determined by the bot_type field of the referenced
# UserProfile.
#
# If the Service is an outgoing webhook bot:
# - name is any human-readable identifier for the Service
# - base_url is the address of the third-party site
# - token is used for authentication with the third-party site
#
# If the Service is an embedded bot:
# - name is the canonical name for the type of bot (e.g. 'xkcd' for an instance
# of the xkcd bot); multiple embedded bots can have the same name, but all
# embedded bots with the same name will run the same code
# - base_url and token are currently unused
class Service(models.Model):
name = models.CharField(max_length=UserProfile.MAX_NAME_LENGTH) # type: Text
# Bot user corresponding to the Service. The bot_type of this user
# deterines the type of service. If non-bot services are added later,
# user_profile can also represent the owner of the Service.
user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile
base_url = models.TextField() # type: Text
token = models.TextField() # type: Text
# Interface / API version of the service.
interface = models.PositiveSmallIntegerField(default=1) # type: int
# Valid interfaces are {generic, zulip_bot_service, slack}
GENERIC = 1
SLACK = 2
ALLOWED_INTERFACE_TYPES = [
GENERIC,
SLACK,
]
# N.B. If we used Django's choice=... we would get this for free (kinda)
_interfaces = {
GENERIC: GENERIC_INTERFACE,
SLACK: SLACK_INTERFACE,
} # type: Dict[int, Text]
def interface_name(self):
# type: () -> Text
# Raises KeyError if invalid
return self._interfaces[self.interface]
def get_realm_outgoing_webhook_services_name(realm):
# type: (Realm) -> List[Any]
return list(Service.objects.filter(user_profile__realm=realm, user_profile__is_bot=True,
user_profile__bot_type=UserProfile.OUTGOING_WEBHOOK_BOT).values('name'))
def get_bot_services(user_profile_id):
# type: (str) -> List[Service]
return list(Service.objects.filter(user_profile__id=user_profile_id))
def get_service_profile(user_profile_id, service_name):
# type: (str, str) -> Service
return Service.objects.get(user_profile__id=user_profile_id, name=service_name)
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