from typing import Any, Dict, List, Optional, Union from django.conf import settings from django.http import HttpRequest, HttpResponse from django.shortcuts import redirect from django.utils.translation import ugettext as _ from zerver.decorator import require_member_or_admin, require_realm_admin from zerver.forms import PASSWORD_TOO_WEAK_ERROR, CreateUserForm from zerver.lib.actions import ( check_change_bot_full_name, check_change_full_name, check_remove_custom_profile_field_value, do_change_avatar_fields, do_change_bot_owner, do_change_default_all_public_streams, do_change_default_events_register_stream, do_change_default_sending_stream, do_change_user_role, do_create_user, do_deactivate_user, do_reactivate_user, do_regenerate_api_key, do_update_bot_config_data, do_update_outgoing_webhook_service, do_update_user_custom_profile_data_if_changed, notify_created_bot, ) from zerver.lib.avatar import avatar_url, get_gravatar_url from zerver.lib.bot_config import set_bot_config from zerver.lib.email_validation import email_allowed_for_realm from zerver.lib.exceptions import CannotDeactivateLastUserError, OrganizationOwnerRequired from zerver.lib.integrations import EMBEDDED_BOTS from zerver.lib.request import REQ, has_request_variables from zerver.lib.response import json_error, json_success from zerver.lib.streams import access_stream_by_id, access_stream_by_name, subscribed_to_stream from zerver.lib.types import Validator from zerver.lib.upload import upload_avatar_image from zerver.lib.url_encoding import add_query_arg_to_redirect_url from zerver.lib.users import ( access_bot_by_id, access_user_by_id, add_service, check_bot_creation_policy, check_bot_name_available, check_full_name, check_short_name, check_valid_bot_config, check_valid_bot_type, check_valid_interface_type, get_api_key, get_raw_user_data, validate_user_custom_profile_data, ) from zerver.lib.utils import generate_api_key from zerver.lib.validator import ( check_bool, check_dict, check_dict_only, check_int, check_int_in, check_list, check_none_or, check_string, check_union, check_url, ) from zerver.models import ( DisposableEmailError, DomainNotAllowedForRealmError, EmailContainsPlusError, InvalidFakeEmailDomain, Message, Realm, Service, Stream, UserProfile, get_user_by_delivery_email, get_user_by_id_in_realm_including_cross_realm, get_user_including_cross_realm, get_user_profile_by_id_in_realm, ) from zproject.backends import check_password_strength def check_last_owner(user_profile: UserProfile) -> bool: owners = set(user_profile.realm.get_human_owner_users()) return user_profile.is_realm_owner and not user_profile.is_bot and len(owners) == 1 def deactivate_user_backend(request: HttpRequest, user_profile: UserProfile, user_id: int) -> HttpResponse: target = access_user_by_id(user_profile, user_id) if target.is_realm_owner and not user_profile.is_realm_owner: raise OrganizationOwnerRequired() if check_last_owner(target): return json_error(_('Cannot deactivate the only organization owner')) return _deactivate_user_profile_backend(request, user_profile, target) def deactivate_user_own_backend(request: HttpRequest, user_profile: UserProfile) -> HttpResponse: if UserProfile.objects.filter(realm=user_profile.realm, is_active=True).count() == 1: raise CannotDeactivateLastUserError(is_last_owner=False) if user_profile.is_realm_owner and check_last_owner(user_profile): raise CannotDeactivateLastUserError(is_last_owner=True) do_deactivate_user(user_profile, acting_user=user_profile) return json_success() def deactivate_bot_backend(request: HttpRequest, user_profile: UserProfile, bot_id: int) -> HttpResponse: target = access_bot_by_id(user_profile, bot_id) return _deactivate_user_profile_backend(request, user_profile, target) def _deactivate_user_profile_backend(request: HttpRequest, user_profile: UserProfile, target: UserProfile) -> HttpResponse: do_deactivate_user(target, acting_user=user_profile) return json_success() def reactivate_user_backend(request: HttpRequest, user_profile: UserProfile, user_id: int) -> HttpResponse: target = access_user_by_id(user_profile, user_id, allow_deactivated=True, allow_bots=True) if target.is_bot: assert target.bot_type is not None check_bot_creation_policy(user_profile, target.bot_type) do_reactivate_user(target, acting_user=user_profile) return json_success() check_profile_data: Validator[List[Dict[str, Optional[Union[int, str, List[int]]]]]] = check_list( check_dict_only([ ('id', check_int), ('value', check_none_or( check_union([check_int, check_string, check_list(check_int)]), )), ]), ) @has_request_variables def update_user_backend( request: HttpRequest, user_profile: UserProfile, user_id: int, full_name: Optional[str] = REQ(default=None, validator=check_string), role: Optional[int] = REQ(default=None, validator=check_int_in( UserProfile.ROLE_TYPES, )), profile_data: Optional[List[Dict[str, Optional[Union[int, str, List[int]]]]]] = REQ( default=None, validator=check_profile_data, ), ) -> HttpResponse: target = access_user_by_id(user_profile, user_id, allow_deactivated=True, allow_bots=True) if role is not None and target.role != role: if target.role == UserProfile.ROLE_REALM_OWNER and check_last_owner(user_profile): return json_error(_('The owner permission cannot be removed from the only organization owner.')) if UserProfile.ROLE_REALM_OWNER in [role, target.role] and not user_profile.is_realm_owner: raise OrganizationOwnerRequired() do_change_user_role(target, role, acting_user=user_profile) if (full_name is not None and target.full_name != full_name and full_name.strip() != ""): # We don't respect `name_changes_disabled` here because the request # is on behalf of the administrator. check_change_full_name(target, full_name, user_profile) if profile_data is not None: clean_profile_data = [] for entry in profile_data: assert isinstance(entry["id"], int) if entry["value"] is None or not entry["value"]: field_id = entry["id"] check_remove_custom_profile_field_value(target, field_id) else: clean_profile_data.append({ "id": entry["id"], "value": entry["value"], }) validate_user_custom_profile_data(target.realm.id, clean_profile_data) do_update_user_custom_profile_data_if_changed(target, clean_profile_data) return json_success() def avatar(request: HttpRequest, user_profile: UserProfile, email_or_id: str, medium: bool=False) -> HttpResponse: """Accepts an email address or user ID and returns the avatar""" is_email = False try: int(email_or_id) except ValueError: is_email = True try: realm = user_profile.realm if is_email: avatar_user_profile = get_user_including_cross_realm(email_or_id, realm) else: avatar_user_profile = get_user_by_id_in_realm_including_cross_realm(int(email_or_id), realm) # If there is a valid user account passed in, use its avatar url = avatar_url(avatar_user_profile, medium=medium) except UserProfile.DoesNotExist: # If there is no such user, treat it as a new gravatar email = email_or_id avatar_version = 1 url = get_gravatar_url(email, avatar_version, medium) # We can rely on the url already having query parameters. Because # our templates depend on being able to use the ampersand to # add query parameters to our url, get_avatar_url does '?x=x' # hacks to prevent us from having to jump through decode/encode hoops. assert url is not None url = add_query_arg_to_redirect_url(url, request.META['QUERY_STRING']) return redirect(url) def get_stream_name(stream: Optional[Stream]) -> Optional[str]: if stream: return stream.name return None @require_member_or_admin @has_request_variables def patch_bot_backend( request: HttpRequest, user_profile: UserProfile, bot_id: int, full_name: Optional[str]=REQ(default=None), bot_owner_id: Optional[int]=REQ(validator=check_int, default=None), config_data: Optional[Dict[str, str]]=REQ(default=None, validator=check_dict(value_validator=check_string)), service_payload_url: Optional[str]=REQ(validator=check_url, default=None), service_interface: int=REQ(validator=check_int, default=1), default_sending_stream: Optional[str]=REQ(default=None), default_events_register_stream: Optional[str]=REQ(default=None), default_all_public_streams: Optional[bool]=REQ(default=None, validator=check_bool), ) -> HttpResponse: bot = access_bot_by_id(user_profile, bot_id) if full_name is not None: check_change_bot_full_name(bot, full_name, user_profile) if bot_owner_id is not None: try: owner = get_user_profile_by_id_in_realm(bot_owner_id, user_profile.realm) except UserProfile.DoesNotExist: return json_error(_('Failed to change owner, no such user')) if not owner.is_active: return json_error(_('Failed to change owner, user is deactivated')) if owner.is_bot: return json_error(_("Failed to change owner, bots can't own other bots")) previous_owner = bot.bot_owner if previous_owner != owner: do_change_bot_owner(bot, owner, user_profile) if default_sending_stream is not None: if default_sending_stream == "": stream: Optional[Stream] = None else: (stream, recipient, sub) = access_stream_by_name( user_profile, default_sending_stream) do_change_default_sending_stream(bot, stream, acting_user=user_profile) if default_events_register_stream is not None: if default_events_register_stream == "": stream = None else: (stream, recipient, sub) = access_stream_by_name( user_profile, default_events_register_stream) do_change_default_events_register_stream(bot, stream, acting_user=user_profile) if default_all_public_streams is not None: do_change_default_all_public_streams(bot, default_all_public_streams, acting_user=user_profile) if service_payload_url is not None: check_valid_interface_type(service_interface) assert service_interface is not None do_update_outgoing_webhook_service(bot, service_interface, service_payload_url) if config_data is not None: do_update_bot_config_data(bot, config_data) if len(request.FILES) == 0: pass elif len(request.FILES) == 1: user_file = list(request.FILES.values())[0] upload_avatar_image(user_file, user_profile, bot) avatar_source = UserProfile.AVATAR_FROM_USER do_change_avatar_fields(bot, avatar_source, acting_user=user_profile) else: return json_error(_("You may only upload one file at a time")) json_result = dict( full_name=bot.full_name, avatar_url=avatar_url(bot), service_interface = service_interface, service_payload_url = service_payload_url, config_data = config_data, default_sending_stream=get_stream_name(bot.default_sending_stream), default_events_register_stream=get_stream_name(bot.default_events_register_stream), default_all_public_streams=bot.default_all_public_streams, ) # Don't include the bot owner in case it is not set. # Default bots have no owner. if bot.bot_owner is not None: json_result['bot_owner'] = bot.bot_owner.email return json_success(json_result) @require_member_or_admin @has_request_variables def regenerate_bot_api_key(request: HttpRequest, user_profile: UserProfile, bot_id: int) -> HttpResponse: bot = access_bot_by_id(user_profile, bot_id) new_api_key = do_regenerate_api_key(bot, user_profile) json_result = dict( api_key=new_api_key, ) return json_success(json_result) @require_member_or_admin @has_request_variables def add_bot_backend( request: HttpRequest, user_profile: UserProfile, full_name_raw: str=REQ("full_name"), short_name_raw: str=REQ("short_name"), bot_type: int=REQ(validator=check_int, default=UserProfile.DEFAULT_BOT), payload_url: str=REQ(validator=check_url, default=""), service_name: Optional[str]=REQ(default=None), config_data: Dict[str, str]=REQ(default={}, validator=check_dict(value_validator=check_string)), interface_type: int=REQ(validator=check_int, default=Service.GENERIC), default_sending_stream_name: Optional[str]=REQ('default_sending_stream', default=None), default_events_register_stream_name: Optional[str]=REQ('default_events_register_stream', default=None), default_all_public_streams: Optional[bool]=REQ(validator=check_bool, default=None), ) -> HttpResponse: short_name = check_short_name(short_name_raw) if bot_type != UserProfile.INCOMING_WEBHOOK_BOT: service_name = service_name or short_name short_name += "-bot" full_name = check_full_name(full_name_raw) try: email = f'{short_name}@{user_profile.realm.get_bot_domain()}' except InvalidFakeEmailDomain: return json_error(_("Can't create bots until FAKE_EMAIL_DOMAIN is correctly configured.\n" "Please contact your server administrator.")) form = CreateUserForm({'full_name': full_name, 'email': email}) if bot_type == UserProfile.EMBEDDED_BOT: if not settings.EMBEDDED_BOTS_ENABLED: return json_error(_("Embedded bots are not enabled.")) if service_name not in [bot.name for bot in EMBEDDED_BOTS]: return json_error(_("Invalid embedded bot name.")) if not form.is_valid(): # We validate client-side as well return json_error(_('Bad name or username')) try: get_user_by_delivery_email(email, user_profile.realm) return json_error(_("Username already in use")) except UserProfile.DoesNotExist: pass check_bot_name_available( realm_id=user_profile.realm_id, full_name=full_name, ) check_bot_creation_policy(user_profile, bot_type) check_valid_bot_type(user_profile, bot_type) check_valid_interface_type(interface_type) if len(request.FILES) == 0: avatar_source = UserProfile.AVATAR_FROM_GRAVATAR elif len(request.FILES) != 1: return json_error(_("You may only upload one file at a time")) else: avatar_source = UserProfile.AVATAR_FROM_USER default_sending_stream = None if default_sending_stream_name is not None: (default_sending_stream, ignored_rec, ignored_sub) = access_stream_by_name( user_profile, default_sending_stream_name) default_events_register_stream = None if default_events_register_stream_name is not None: (default_events_register_stream, ignored_rec, ignored_sub) = access_stream_by_name( user_profile, default_events_register_stream_name) if bot_type in (UserProfile.INCOMING_WEBHOOK_BOT, UserProfile.EMBEDDED_BOT) and service_name: check_valid_bot_config(bot_type, service_name, config_data) bot_profile = do_create_user(email=email, password=None, realm=user_profile.realm, full_name=full_name, bot_type=bot_type, bot_owner=user_profile, avatar_source=avatar_source, default_sending_stream=default_sending_stream, default_events_register_stream=default_events_register_stream, default_all_public_streams=default_all_public_streams, acting_user=user_profile) if len(request.FILES) == 1: user_file = list(request.FILES.values())[0] upload_avatar_image(user_file, user_profile, bot_profile) if bot_type in (UserProfile.OUTGOING_WEBHOOK_BOT, UserProfile.EMBEDDED_BOT): assert(isinstance(service_name, str)) add_service(name=service_name, user_profile=bot_profile, base_url=payload_url, interface=interface_type, token=generate_api_key()) if bot_type == UserProfile.INCOMING_WEBHOOK_BOT and service_name: set_bot_config(bot_profile, "integration_id", service_name) if bot_type in (UserProfile.INCOMING_WEBHOOK_BOT, UserProfile.EMBEDDED_BOT): for key, value in config_data.items(): set_bot_config(bot_profile, key, value) notify_created_bot(bot_profile) api_key = get_api_key(bot_profile) json_result = dict( api_key=api_key, avatar_url=avatar_url(bot_profile), default_sending_stream=get_stream_name(bot_profile.default_sending_stream), default_events_register_stream=get_stream_name(bot_profile.default_events_register_stream), default_all_public_streams=bot_profile.default_all_public_streams, ) return json_success(json_result) @require_member_or_admin def get_bots_backend(request: HttpRequest, user_profile: UserProfile) -> HttpResponse: bot_profiles = UserProfile.objects.filter(is_bot=True, is_active=True, bot_owner=user_profile) bot_profiles = bot_profiles.select_related('default_sending_stream', 'default_events_register_stream') bot_profiles = bot_profiles.order_by('date_joined') def bot_info(bot_profile: UserProfile) -> Dict[str, Any]: default_sending_stream = get_stream_name(bot_profile.default_sending_stream) default_events_register_stream = get_stream_name(bot_profile.default_events_register_stream) # Bots are supposed to have only one API key, at least for now. # Therefore we can safely assume that one and only valid API key will be # the first one. api_key = get_api_key(bot_profile) return dict( username=bot_profile.email, full_name=bot_profile.full_name, api_key=api_key, avatar_url=avatar_url(bot_profile), default_sending_stream=default_sending_stream, default_events_register_stream=default_events_register_stream, default_all_public_streams=bot_profile.default_all_public_streams, ) return json_success({'bots': list(map(bot_info, bot_profiles))}) @has_request_variables def get_members_backend(request: HttpRequest, user_profile: UserProfile, user_id: Optional[int]=None, include_custom_profile_fields: bool=REQ(validator=check_bool, default=False), client_gravatar: bool=REQ(validator=check_bool, default=False), ) -> HttpResponse: ''' The client_gravatar field here is set to True if clients can compute their own gravatars, which saves us bandwidth. We want to eventually make this the default behavior, but we have old clients that expect the server to compute this for us. ''' realm = user_profile.realm if realm.email_address_visibility != Realm.EMAIL_ADDRESS_VISIBILITY_EVERYONE: # If email addresses are only available to administrators, # clients cannot compute gravatars, so we force-set it to false. client_gravatar = False target_user = None if user_id is not None: target_user = access_user_by_id(user_profile, user_id, allow_deactivated=True, allow_bots=True, read_only=True) members = get_raw_user_data(realm, user_profile, target_user=target_user, client_gravatar=client_gravatar, user_avatar_url_field_optional=False, include_custom_profile_fields=include_custom_profile_fields) if target_user is not None: data: Dict[str, Any] = {"user": members[target_user.id]} else: data = {"members": [members[k] for k in members]} return json_success(data) @require_realm_admin @has_request_variables def create_user_backend( request: HttpRequest, user_profile: UserProfile, email: str=REQ(), password: str=REQ(), full_name_raw: str=REQ("full_name"), ) -> HttpResponse: full_name = check_full_name(full_name_raw) form = CreateUserForm({'full_name': full_name, 'email': email}) if not form.is_valid(): return json_error(_('Bad name or username')) # Check that the new user's email address belongs to the admin's realm # (Since this is an admin API, we don't require the user to have been # invited first.) realm = user_profile.realm try: email_allowed_for_realm(email, user_profile.realm) except DomainNotAllowedForRealmError: return json_error(_("Email '{email}' not allowed in this organization").format( email=email, )) except DisposableEmailError: return json_error(_("Disposable email addresses are not allowed in this organization")) except EmailContainsPlusError: return json_error(_("Email addresses containing + are not allowed.")) try: get_user_by_delivery_email(email, user_profile.realm) return json_error(_("Email '{}' already in use").format(email)) except UserProfile.DoesNotExist: pass if not check_password_strength(password): return json_error(PASSWORD_TOO_WEAK_ERROR) do_create_user(email, password, realm, full_name, acting_user=user_profile) return json_success() def get_profile_backend(request: HttpRequest, user_profile: UserProfile) -> HttpResponse: raw_user_data = get_raw_user_data(user_profile.realm, user_profile, target_user=user_profile, client_gravatar=False, user_avatar_url_field_optional=False) result: Dict[str, Any] = raw_user_data[user_profile.id] result['max_message_id'] = -1 messages = Message.objects.filter(usermessage__user_profile=user_profile).order_by('-id')[:1] if messages: result['max_message_id'] = messages[0].id return json_success(result) @has_request_variables def get_subscription_backend(request: HttpRequest, user_profile: UserProfile, user_id: int=REQ(validator=check_int, path_only=True), stream_id: int=REQ(validator=check_int, path_only=True), ) -> HttpResponse: target_user = access_user_by_id(user_profile, user_id, read_only=True) (stream, recipient, sub) = access_stream_by_id(user_profile, stream_id) subscription_status = {'is_subscribed': subscribed_to_stream(target_user, stream_id)} return json_success(subscription_status)