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, F from django.db.models import Manager, CASCADE, Sum from django.db.models.functions import Length 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_api_key_cache_key, \ 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, active_user_ids_cache_key, \ get_stream_cache_key, realm_user_dicts_cache_key, \ bot_dicts_in_realm_cache_key, realm_user_dict_fields, \ bot_dict_fields, flush_message, bot_profile_cache_key from zerver.lib.utils import make_safe_digest, generate_random_token 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, OrderedDict 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]) def query_for_ids(query: QuerySet, user_ids: List[int], field: str) -> QuerySet: ''' This function optimizes searches of the form `user_profile_id in (1, 2, 3, 4)` by quickly building the where clauses. Profiling shows significant speedups over the normal Django-based approach. Use this very carefully! Also, the caller should guard against empty lists of user_ids. ''' assert(user_ids) value_list = ', '.join(str(int(user_id)) for user_id in user_ids) clause = '%s in (%s)' % (field, value_list) query = query.extra( where=[clause] ) return query # 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, Union[Text, List[Dict[str, Any]]]] def get_display_recipient_by_id(recipient_id: int, recipient_type: int, recipient_type_id: 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: '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() -> None: global per_request_display_recipient_cache per_request_display_recipient_cache = {} global per_request_realm_filters_cache per_request_realm_filters_cache = {} DisplayRecipientCacheT = Union[Text, List[Dict[str, Any]]] @cache_with_key(lambda *args: display_recipient_cache_key(args[0]), timeout=3600*24*7) def get_display_recipient_remote_cache(recipient_id: int, recipient_type: int, recipient_type_id: Optional[int]) -> DisplayRecipientCacheT: """ 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: 'Realm') -> Text: return u'realm_emoji:%s' % (realm.id,) class Realm(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'] SUBDOMAIN_FOR_ROOT_DOMAIN = '' 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 create_generic_bot_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_deleting = models.BooleanField(default=False) # type: bool 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] signup_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 DEFAULT_MAX_INVITES = 100 max_invites = models.IntegerField(default=DEFAULT_MAX_INVITES) # type: int message_visibility_limit = models.IntegerField(null=True) # type: int # See upload_quota_bytes; don't interpret upload_quota_gb directly. upload_quota_gb = models.IntegerField(null=True) # type: int # Define the types of the various automatically managed properties property_types = dict( add_emoji_by_admins_only=bool, allow_edit_history=bool, allow_message_deleting=bool, create_generic_bot_by_admins_only=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' INITIAL_PRIVATE_STREAM_NAME = u'core team' def authentication_methods_dict(self) -> 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 __str__(self) -> Text: return "" % (self.string_id, self.id) @cache_with_key(get_realm_emoji_cache_key, timeout=3600*24*7) def get_emoji(self) -> Dict[Text, Optional[Dict[str, Iterable[Text]]]]: return get_realm_emoji_uncached(self) def get_admin_users(self) -> Sequence['UserProfile']: # TODO: Change return type to QuerySet[UserProfile] return UserProfile.objects.filter(realm=self, is_realm_admin=True, is_active=True) def get_active_users(self) -> 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) -> str: # Remove the port. Mainly needed for development environment. return self.host.split(':')[0] def get_notifications_stream(self) -> Optional['Stream']: if self.notifications_stream is not None and not self.notifications_stream.deactivated: return self.notifications_stream return None def get_signup_notifications_stream(self) -> Optional['Stream']: if self.signup_notifications_stream is not None and not self.signup_notifications_stream.deactivated: return self.signup_notifications_stream return None def upload_quota_bytes(self) -> Optional[int]: if self.upload_quota_gb is None: return None # We describe the quota to users in "GB" or "gigabytes", but actually apply # it as gibibytes (GiB) to be a bit more generous in case of confusion. return self.upload_quota_gb << 30 @property def subdomain(self) -> Text: return self.string_id @property def display_subdomain(self) -> Text: """Likely to be temporary function to avoid signup messages being sent to an empty topic""" if self.string_id == "": return "." return self.string_id @property def uri(self) -> str: return settings.EXTERNAL_URI_SCHEME + self.host @property def host(self) -> str: return self.host_for_subdomain(self.subdomain) @staticmethod def host_for_subdomain(subdomain: str) -> str: if subdomain == Realm.SUBDOMAIN_FOR_ROOT_DOMAIN: return settings.EXTERNAL_HOST default_host = "%s.%s" % (subdomain, settings.EXTERNAL_HOST) return settings.REALM_HOSTS.get(subdomain, default_host) @property def is_zephyr_mirror_realm(self) -> bool: return self.string_id == "zephyr" @property def webathena_enabled(self) -> bool: return self.is_zephyr_mirror_realm @property def presence_disabled(self) -> bool: return self.is_zephyr_mirror_realm class Meta: 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: Text) -> Realm: return Realm.objects.filter(string_id=string_id).first() def name_changes_disabled(realm: 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: unique_together = ("realm", "domain") # 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: Text) -> Text: return "@".join(email.split("@")[:-1]).lower() # Returns the raw domain portion of the desired email address def email_to_domain(email: Text) -> Text: return email.split("@")[-1].lower() class GetRealmByDomainException(Exception): pass # 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: Text, realm: 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: Realm) -> List[Dict[str, Text]]: return list(realm.realmdomain_set.values('domain', 'allow_subdomains')) class RealmEmoji(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.\-_]+(? Text: return "" % (self.realm.string_id, self.name, self.file_name) def get_realm_emoji_uncached(realm: 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: Any, **kwargs: 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: Text) -> None: regex = re.compile(r'(?:[\w\-#]*)(\(\?P<\w+>.+\))') error_msg = 'Invalid filter pattern, you must use the following format OPTIONAL_PREFIX(?P.+)' 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: 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: unique_together = ("realm", "pattern") def __str__(self) -> Text: return "" % (self.realm.string_id, self.pattern, self.url_format_string) def get_realm_filters_cache_key(realm_id: int) -> Text: return u'%s:all_realm_filters:%s' % (cache.KEY_PREFIX, 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: int) -> bool: return realm_id in per_request_realm_filters_cache def realm_filters_for_realm(realm_id: 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: 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() -> 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: Any, **kwargs: 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(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 BOT_TYPES = { DEFAULT_BOT: 'Generic bot', INCOMING_WEBHOOK_BOT: 'Incoming webhook', OUTGOING_WEBHOOK_BOT: 'Outgoing webhook', EMBEDDED_BOT: 'Embedded 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) # 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 = 2 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_email_notifications = models.BooleanField(default=False) # type: bool enable_stream_push_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 realm_name_in_notifications = models.BooleanField(default=False) # 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] left_side_userlist = 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 night_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 objects = UserManager() # type: UserManager # 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' TEXT_EMOJISET = u'text' EMOJISET_CHOICES = ((GOOGLE_EMOJISET, "Google"), (APPLE_EMOJISET, "Apple"), (TWITTER_EMOJISET, "Twitter"), (EMOJIONE_EMOJISET, "EmojiOne"), (TEXT_EMOJISET, "Plain text")) 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, emojiset=Text, left_side_userlist=bool, timezone=Text, twenty_four_hour_time=bool, high_contrast_mode=bool, night_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_email_notifications=bool, enable_stream_push_notifications=bool, enable_stream_sounds=bool, pm_content_in_desktop_notifications=bool, realm_name_in_notifications=bool, ) class Meta: unique_together = (('realm', 'email'),) @property def profile_data(self) -> 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: '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 __str__(self) -> Text: return "" % (self.email, self.realm) @property def is_incoming_webhook(self) -> bool: return self.bot_type == UserProfile.INCOMING_WEBHOOK_BOT @property def is_outgoing_webhook_bot(self) -> bool: return self.bot_type == UserProfile.OUTGOING_WEBHOOK_BOT @property def is_embedded_bot(self) -> bool: return self.bot_type == UserProfile.EMBEDDED_BOT @property def is_service_bot(self) -> bool: return self.is_bot and self.bot_type in UserProfile.SERVICE_BOT_TYPES @property def allowed_bot_types(self): # type: () -> List[int] allowed_bot_types = [] if self.is_realm_admin or not self.realm.create_generic_bot_by_admins_only: allowed_bot_types.append(UserProfile.DEFAULT_BOT) allowed_bot_types += [ UserProfile.INCOMING_WEBHOOK_BOT, UserProfile.OUTGOING_WEBHOOK_BOT, ] if settings.EMBEDDED_BOTS_ENABLED: allowed_bot_types.append(UserProfile.EMBEDDED_BOT) return allowed_bot_types @staticmethod def emojiset_choices() -> Dict[Text, Text]: return OrderedDict((emojiset[0], emojiset[1]) for emojiset in UserProfile.EMOJISET_CHOICES) @staticmethod def emails_from_ids(user_ids: 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) -> 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) -> int: if self.tos_version is not None: return int(self.tos_version.split('.')[0]) else: return -1 class UserGroup(models.Model): name = models.CharField(max_length=100) members = models.ManyToManyField(UserProfile, through='UserGroupMembership') realm = models.ForeignKey(Realm, on_delete=CASCADE) description = models.CharField(max_length=1024, default=u'') # type: Text class Meta: unique_together = (('realm', 'name'),) class UserGroupMembership(models.Model): user_group = models.ForeignKey(UserGroup, on_delete=CASCADE) user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) class Meta: unique_together = (('user_group', 'user_profile'),) def receives_offline_push_notifications(user_profile: UserProfile) -> bool: return (user_profile.enable_offline_push_notifications and not user_profile.is_bot) def receives_offline_email_notifications(user_profile: UserProfile) -> bool: return (user_profile.enable_offline_email_notifications and not user_profile.is_bot) def receives_online_notifications(user_profile: UserProfile) -> bool: return (user_profile.enable_online_push_notifications and not user_profile.is_bot) def receives_stream_notifications(user_profile: UserProfile) -> bool: return (user_profile.enable_stream_push_notifications and not user_profile.is_bot) def remote_user_to_email(remote_user: 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] invited_as_admin = models.BooleanField(default=False) # type: Optional[bool] class MultiuseInvite(models.Model): referred_by = models.ForeignKey(UserProfile, on_delete=CASCADE) # Optional[UserProfile] streams = models.ManyToManyField('Stream') # type: Manager realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: 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 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: abstract = True class PushDeviceToken(AbstractPushDeviceToken): # The user who's device this is user = models.ForeignKey(UserProfile, db_index=True, on_delete=CASCADE) # type: UserProfile token = models.CharField(max_length=4096, unique=True) # type: bytes def generate_email_token_for_stream() -> str: return generate_random_token(32) class Stream(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] # The unique thing about Zephyr public streams is that we never list their # users. We may try to generalize this concept later, but for now # we just use a concrete field. (Zephyr public streams aren't exactly like # invite-only streams--while both are private in terms of listing users, # for Zephyr we don't even list users to stream members, yet membership # is more public in the sense that you don't need a Zulip invite to join. # This field is populated directly from UserProfile.is_zephyr_mirror_realm, # and the reason for denormalizing field is performance. is_in_zephyr_realm = models.BooleanField(default=False) # type: 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 __str__(self) -> Text: return "" % (self.name,) def is_public(self) -> bool: # All streams are private in Zephyr mirroring realms. return not self.invite_only and not self.is_in_zephyr_realm class Meta: unique_together = ("name", "realm") # This is stream information that is sent to clients def to_dict(self) -> 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(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: 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) -> str: # Raises KeyError if invalid return self._type_names[self.type] def __str__(self) -> Text: display_recipient = get_display_recipient(self) return "" % (display_recipient, self.type_id, self.type) class MutedTopic(models.Model): user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) stream = models.ForeignKey(Stream, on_delete=CASCADE) recipient = models.ForeignKey(Recipient, on_delete=CASCADE) topic_name = models.CharField(max_length=MAX_SUBJECT_LENGTH) class Meta: unique_together = ('user_profile', 'stream', 'topic_name') def __str__(self) -> Text: return "" % (self.user_profile.email, self.stream.name, self.topic_name) class Client(models.Model): name = models.CharField(max_length=30, db_index=True, unique=True) # type: Text def __str__(self) -> Text: return "" % (self.name,) get_client_cache = {} # type: Dict[Text, Client] def get_client(name: 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: 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: Text) -> Client: (client, _) = Client.objects.get_or_create(name=name) return client @cache_with_key(get_stream_cache_key, timeout=3600*24*7) def get_realm_stream(stream_name: Text, realm_id: int) -> Stream: return Stream.objects.select_related("realm").get( name__iexact=stream_name.strip(), realm_id=realm_id) def stream_name_in_use(stream_name: Text, realm_id: int) -> bool: return Stream.objects.filter( name__iexact=stream_name.strip(), realm_id=realm_id ).exists() def get_active_streams(realm: 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: Text, realm: Realm) -> Stream: ''' Callers that don't have a Realm object already available should use get_realm_stream directly, to avoid unnecessarily fetching the Realm object. ''' return get_realm_stream(stream_name, realm.id) def bulk_get_streams(realm: Realm, stream_names: STREAM_NAMES) -> Dict[Text, Any]: def fetch_streams_by_name(stream_names: 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.id), 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: int, type_id: 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: int, type_id: int) -> Recipient: return Recipient.objects.get(type_id=type_id, type=type) def get_stream_recipient(stream_id: int) -> Recipient: return get_recipient(Recipient.STREAM, stream_id) def get_personal_recipient(user_profile_id: int) -> Recipient: return get_recipient(Recipient.PERSONAL, user_profile_id) def get_huddle_recipient(user_profile_ids: Set[int]) -> Recipient: # The caller should ensure that user_profile_ids includes # the sender. Note that get_huddle hits the cache, and then # we hit another cache to get the recipient. We may want to # unify our caching strategy here. huddle = get_huddle(list(user_profile_ids)) return get_recipient(Recipient.HUDDLE, huddle.id) def get_huddle_user_ids(recipient: Recipient) -> List[int]: assert(recipient.type == Recipient.HUDDLE) return Subscription.objects.filter( recipient=recipient, active=True, ).order_by('user_profile_id').values_list('user_profile_id', flat=True) def bulk_get_recipients(type: int, type_ids: List[int]) -> Dict[int, Any]: def cache_key_function(type_id: int) -> Text: return get_recipient_cache_key(type, type_id) def query_function(type_ids: 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 get_stream_recipients(stream_ids: List[int]) -> List[Recipient]: ''' We could call bulk_get_recipients(...).values() here, but it actually leads to an extra query in test mode. ''' return Recipient.objects.filter( type=Recipient.STREAM, type_id__in=stream_ids, ) class AbstractMessage(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: abstract = True def __str__(self) -> Text: display_recipient = get_display_recipient(self.recipient) return "<%s: %s / %s / %s>" % (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) -> Text: """ Please start using this helper to facilitate an eventual switch over to a separate topic table. """ return self.subject def is_stream_message(self) -> bool: ''' Find out whether a message is a stream message by looking up its recipient.type. TODO: Make this an easier operation by denormalizing the message type onto Message, either explicity (message.type) or implicitly (message.stream_id is not None). ''' return self.recipient.type == Recipient.STREAM def get_realm(self) -> Realm: return self.sender.realm def save_rendered_content(self) -> None: self.save(update_fields=["rendered_content", "rendered_content_version"]) @staticmethod def need_to_render_content(rendered_content: Optional[Text], rendered_content_version: Optional[int], bugdown_version: int) -> bool: return (rendered_content is None or rendered_content_version is None or rendered_content_version < bugdown_version) def to_log_dict(self) -> 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)) def sent_by_human(self) -> 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: Text) -> Match: return re.search(r'[/\-]user[\-_]uploads[/\.-]', content) @staticmethod def content_has_image(content: 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: Text) -> bool: return ('http://' in content or 'https://' in content or '/user_uploads' in content or (settings.ENABLE_FILE_LINKS and 'file:///' in content) or 'bitcoin:' in content) @staticmethod def is_status_message(content: Text, rendered_content: 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('

') and rendered_content.endswith('

'): return True return False def update_calculated_fields(self) -> 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: Any, **kwargs: 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(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: unique_together = ("user_profile", "message", "emoji_name") @staticmethod def get_raw_db_rows(needed_ids: 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(models.Model): user_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile # WARNING: We removed the previously-final flag, # is_me_message, without clearing any values it might have had in # the database. So when we next add a flag, you need to do a # migration to set it to 0 first ALL_FLAGS = ['read', 'starred', 'collapsed', 'mentioned', 'wildcard_mentioned', 'summarize_in_home', 'summarize_in_stream', 'force_expand', 'force_collapse', 'has_alert_word', "historical"] flags = BitField(flags=ALL_FLAGS, default=0) # type: BitHandler class Meta: abstract = True unique_together = ("user_profile", "message") @staticmethod def where_unread() -> 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) -> List[str]: flags = int(self.flags) return self.flags_list_for_flags(flags) @staticmethod def flags_list_for_flags(val: int) -> List[str]: ''' This function is highly optimized, because it actually slows down sending messages in a naive implementation. ''' flags = [] mask = 1 for flag in UserMessage.ALL_FLAGS: if val & mask: flags.append(flag) mask <<= 1 return flags def __str__(self) -> Text: display_recipient = get_display_recipient(self.message.recipient) return "<%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 class AbstractAttachment(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: abstract = True def __str__(self) -> Text: return "<%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) -> bool: return self.messages.count() > 0 def to_dict(self) -> Dict[str, Any]: return { 'id': self.id, 'name': self.file_name, 'path_id': self.path_id, 'size': self.size, # convert to JavaScript-style UNIX timestamp so we can take # advantage of client timezones. 'create_time': time.mktime(self.create_time.timetuple()) * 1000, 'messages': [{ 'id': m.id, 'name': time.mktime(m.pub_date.timetuple()) * 1000 } for m in self.messages.all()] } def validate_attachment_request(user_profile: UserProfile, path_id: 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: 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(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 push_notifications = models.BooleanField(default=False) # type: bool email_notifications = models.BooleanField(default=False) # type: bool # Combination desktop + audible notifications superseded by the # above. notifications = models.BooleanField(default=False) # type: bool class Meta: unique_together = ("user_profile", "recipient") def __str__(self) -> Text: return " %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: 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: Text) -> UserProfile: return UserProfile.objects.select_related().get(email__iexact=email.strip()) @cache_with_key(user_profile_by_api_key_cache_key, timeout=3600*24*7) def get_user_profile_by_api_key(api_key: Text) -> UserProfile: return UserProfile.objects.select_related().get(api_key=api_key) @cache_with_key(user_profile_cache_key, timeout=3600*24*7) def get_user(email: Text, realm: Realm) -> UserProfile: return UserProfile.objects.select_related().get(email__iexact=email.strip(), realm=realm) def get_user_including_cross_realm(email: Text, realm: Optional[Realm]=None) -> UserProfile: if is_cross_realm_bot_email(email): 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: Text) -> UserProfile: return UserProfile.objects.select_related().get(email__iexact=email.strip()) @cache_with_key(realm_user_dicts_cache_key, timeout=3600*24*7) def get_realm_user_dicts(realm_id: int) -> List[Dict[str, Any]]: return UserProfile.objects.filter( realm_id=realm_id, ).values(*realm_user_dict_fields) @cache_with_key(active_user_ids_cache_key, timeout=3600*24*7) def active_user_ids(realm_id: int) -> List[int]: query = UserProfile.objects.filter( realm_id=realm_id, is_active=True ).values_list('id', flat=True) return list(query) @cache_with_key(bot_dicts_in_realm_cache_key, timeout=3600*24*7) def get_bot_dicts_in_realm(realm: 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: UserProfile, include_all_realm_bots_if_admin: bool=True) -> 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), 'services': get_service_dicts_for_bots(botdict['id']), } for botdict in result] def is_cross_realm_bot_email(email: Text) -> bool: return email.lower() in 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: 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: Text) -> Text: return u"huddle_by_hash:%s" % (huddle_hash,) def get_huddle(id_list: 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: Text, id_list: 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() -> 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: 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: 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: UserProfile) -> Dict[str, Dict[str, 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', ) presence_rows = list(query) mobile_user_ids = set() # type: Set[int] if PushDeviceToken.objects.filter(user=user_profile).exists(): mobile_user_ids.add(user_profile.id) return UserPresence.get_status_dicts_for_rows(presence_rows, mobile_user_ids) @staticmethod def get_status_dict_by_realm(realm_id: int) -> Dict[str, Dict[str, Any]]: user_profile_ids = UserProfile.objects.filter( realm_id=realm_id, is_active=True, is_bot=False ).order_by('id').values_list('id', flat=True) user_profile_ids = list(user_profile_ids) if not user_profile_ids: return {} two_weeks_ago = timezone_now() - datetime.timedelta(weeks=2) query = UserPresence.objects.filter( timestamp__gte=two_weeks_ago ).values( 'client__name', 'status', 'timestamp', 'user_profile__email', 'user_profile__id', 'user_profile__enable_offline_push_notifications', ) query = query_for_ids( query=query, user_ids=user_profile_ids, field='user_profile_id' ) presence_rows = list(query) mobile_query = PushDeviceToken.objects.distinct( 'user_id' ).values_list( 'user_id', flat=True ) mobile_query = query_for_ids( query=mobile_query, user_ids=user_profile_ids, field='user_id' ) mobile_user_ids = set(mobile_query) return UserPresence.get_status_dicts_for_rows(presence_rows, mobile_user_ids) @staticmethod def get_status_dicts_for_rows(presence_rows: List[Dict[str, Any]], mobile_user_ids: Set[int]) -> Dict[str, Dict[str, Any]]: info_row_dct = defaultdict(list) # type: DefaultDict[str, List[Dict[str, Any]]] for row in presence_rows: email = row['user_profile__email'] client_name = row['client__name'] status = UserPresence.status_to_string(row['status']) dt = row['timestamp'] timestamp = datetime_to_timestamp(dt) push_enabled = row['user_profile__enable_offline_push_notifications'] has_push_devices = row['user_profile__id'] in mobile_user_ids pushable = (push_enabled and has_push_devices) info = dict( client=client_name, status=status, dt=dt, timestamp=timestamp, pushable=pushable, ) info_row_dct[email].append(info) user_statuses = dict() # type: Dict[str, Dict[str, Any]] for email, info_rows in info_row_dct.items(): # Note that datetime values have sub-second granularity, which is # mostly important for avoiding test flakes, but it's also technically # more precise for real users. by_time = lambda row: row['dt'] most_recent_info = max(info_rows, key=by_time) # We don't send datetime values to the client. for r in info_rows: del r['dt'] client_dict = {info['client']: info for info in info_rows} user_statuses[email] = client_dict # The word "aggegrated" here is possibly misleading. # It's really just the most recent client's info. user_statuses[email]['aggregated'] = dict( client=most_recent_info['client'], status=most_recent_info['status'], timestamp=most_recent_info['timestamp'], ) return user_statuses @staticmethod def to_presence_dict(client_name: Text, status: int, dt: datetime.datetime, push_enabled: bool=False, has_push_devices: bool=False) -> 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) -> Dict[str, Any]: return UserPresence.to_presence_dict( self.client.name, self.status, self.timestamp ) @staticmethod def status_from_string(status: 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: 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: unique_together = ("realm", "stream") class DefaultStreamGroup(models.Model): MAX_NAME_LENGTH = 60 name = models.CharField(max_length=MAX_NAME_LENGTH, db_index=True) # type: Text realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm streams = models.ManyToManyField('Stream') # type: Manager description = models.CharField(max_length=1024, default=u'') # type: Text class Meta: unique_together = ("realm", "name") def to_dict(self) -> Dict[str, Any]: return dict(name=self.name, id=self.id, description=self.description, streams=[stream.to_dict() for stream in self.streams.all()]) def get_default_stream_groups(realm: Realm) -> List[DefaultStreamGroup]: return DefaultStreamGroup.objects.filter(realm=realm) 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 realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm class Meta: 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
" 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 def __str__(self) -> Text: return "" % (self.type, self.user or self.address, self.scheduled_timestamp) class ScheduledMessage(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) # type: Text content = models.TextField() # type: Text sending_client = models.ForeignKey(Client, on_delete=CASCADE) # type: Client stream = models.ForeignKey(Stream, null=True, on_delete=CASCADE) # type: Stream realm = models.ForeignKey(Realm, on_delete=CASCADE) # type: Realm scheduled_timestamp = models.DateTimeField(db_index=True) # type: datetime.datetime delivered = models.BooleanField(default=False) # type: bool SEND_LATER = 1 REMIND = 2 DELIVERY_TYPES = ( (SEND_LATER, 'send_later'), (REMIND, 'remind'), ) delivery_type = models.PositiveSmallIntegerField(choices=DELIVERY_TYPES, default=SEND_LATER) # type: int def __str__(self) -> Text: display_recipient = get_display_recipient(self.recipient) return "" % (display_recipient, self.subject, self.sender, self.scheduled_timestamp) 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] def __str__(self) -> str: if self.modified_user is not None: return "" % (self.modified_user, self.event_type, self.event_time) if self.modified_stream is not None: return "" % (self.modified_stream, self.event_type, self.event_time) return "" % (self.realm, self.event_type, self.event_time) 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: 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: unique_together = ('realm', 'name') def as_dict(self) -> Dict[str, Union[int, Text]]: return { 'id': self.id, 'name': self.name, 'type': self.field_type, } def custom_profile_fields_for_realm(realm_id: 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: 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) -> Text: # Raises KeyError if invalid return self._interfaces[self.interface] def get_realm_outgoing_webhook_services_name(realm: 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: str) -> List[Service]: return list(Service.objects.filter(user_profile__id=user_profile_id)) def get_service_dicts_for_bots(user_profile_id: str) -> List[Dict[str, Any]]: services = get_bot_services(user_profile_id) service_dicts = [{'base_url': service.base_url, 'interface': service.interface, } for service in services] return service_dicts def get_service_profile(user_profile_id: str, service_name: str) -> Service: return Service.objects.get(user_profile__id=user_profile_id, name=service_name) class BotStorageData(models.Model): bot_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile key = models.TextField(db_index=True) # type: Text value = models.TextField() # type: Text class Meta: unique_together = ("bot_profile", "key") class BotConfigData(models.Model): bot_profile = models.ForeignKey(UserProfile, on_delete=CASCADE) # type: UserProfile key = models.TextField(db_index=True) # type: Text value = models.TextField() # type: Text class Meta(object): unique_together = ("bot_profile", "key")