forked-synapse/synapse/rest/admin/users.py
2019-11-20 11:49:11 +00:00

499 lines
16 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2019 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import hashlib
import hmac
import logging
import re
from six import text_type
from six.moves import http_client
from synapse.api.constants import UserTypes
from synapse.api.errors import Codes, SynapseError
from synapse.http.servlet import (
RestServlet,
assert_params_in_dict,
parse_integer,
parse_json_object_from_request,
parse_string,
)
from synapse.rest.admin._base import (
assert_requester_is_admin,
assert_user_is_admin,
historical_admin_path_patterns,
)
from synapse.types import UserID
logger = logging.getLogger(__name__)
class UsersRestServlet(RestServlet):
PATTERNS = historical_admin_path_patterns("/users/(?P<user_id>[^/]*)$")
def __init__(self, hs):
self.hs = hs
self.auth = hs.get_auth()
self.admin_handler = hs.get_handlers().admin_handler
async def on_GET(self, request, user_id):
target_user = UserID.from_string(user_id)
await assert_requester_is_admin(self.auth, request)
if not self.hs.is_mine(target_user):
raise SynapseError(400, "Can only users a local user")
ret = await self.admin_handler.get_users()
return 200, ret
class GetUsersPaginatedRestServlet(RestServlet):
"""Get request to get specific number of users from Synapse.
This needs user to have administrator access in Synapse.
Example:
http://localhost:8008/_synapse/admin/v1/users_paginate/
@admin:user?access_token=admin_access_token&start=0&limit=10
Returns:
200 OK with json object {list[dict[str, Any]], count} or empty object.
"""
PATTERNS = historical_admin_path_patterns(
"/users_paginate/(?P<target_user_id>[^/]*)"
)
def __init__(self, hs):
self.store = hs.get_datastore()
self.hs = hs
self.auth = hs.get_auth()
self.handlers = hs.get_handlers()
async def on_GET(self, request, target_user_id):
"""Get request to get specific number of users from Synapse.
This needs user to have administrator access in Synapse.
"""
await assert_requester_is_admin(self.auth, request)
target_user = UserID.from_string(target_user_id)
if not self.hs.is_mine(target_user):
raise SynapseError(400, "Can only users a local user")
order = "name" # order by name in user table
start = parse_integer(request, "start", required=True)
limit = parse_integer(request, "limit", required=True)
logger.info("limit: %s, start: %s", limit, start)
ret = await self.handlers.admin_handler.get_users_paginate(order, start, limit)
return 200, ret
async def on_POST(self, request, target_user_id):
"""Post request to get specific number of users from Synapse..
This needs user to have administrator access in Synapse.
Example:
http://localhost:8008/_synapse/admin/v1/users_paginate/
@admin:user?access_token=admin_access_token
JsonBodyToSend:
{
"start": "0",
"limit": "10
}
Returns:
200 OK with json object {list[dict[str, Any]], count} or empty object.
"""
await assert_requester_is_admin(self.auth, request)
UserID.from_string(target_user_id)
order = "name" # order by name in user table
params = parse_json_object_from_request(request)
assert_params_in_dict(params, ["limit", "start"])
limit = params["limit"]
start = params["start"]
logger.info("limit: %s, start: %s", limit, start)
ret = await self.handlers.admin_handler.get_users_paginate(order, start, limit)
return 200, ret
class UserRegisterServlet(RestServlet):
"""
Attributes:
NONCE_TIMEOUT (int): Seconds until a generated nonce won't be accepted
nonces (dict[str, int]): The nonces that we will accept. A dict of
nonce to the time it was generated, in int seconds.
"""
PATTERNS = historical_admin_path_patterns("/register")
NONCE_TIMEOUT = 60
def __init__(self, hs):
self.handlers = hs.get_handlers()
self.reactor = hs.get_reactor()
self.nonces = {}
self.hs = hs
def _clear_old_nonces(self):
"""
Clear out old nonces that are older than NONCE_TIMEOUT.
"""
now = int(self.reactor.seconds())
for k, v in list(self.nonces.items()):
if now - v > self.NONCE_TIMEOUT:
del self.nonces[k]
def on_GET(self, request):
"""
Generate a new nonce.
"""
self._clear_old_nonces()
nonce = self.hs.get_secrets().token_hex(64)
self.nonces[nonce] = int(self.reactor.seconds())
return 200, {"nonce": nonce}
async def on_POST(self, request):
self._clear_old_nonces()
if not self.hs.config.registration_shared_secret:
raise SynapseError(400, "Shared secret registration is not enabled")
body = parse_json_object_from_request(request)
if "nonce" not in body:
raise SynapseError(400, "nonce must be specified", errcode=Codes.BAD_JSON)
nonce = body["nonce"]
if nonce not in self.nonces:
raise SynapseError(400, "unrecognised nonce")
# Delete the nonce, so it can't be reused, even if it's invalid
del self.nonces[nonce]
if "username" not in body:
raise SynapseError(
400, "username must be specified", errcode=Codes.BAD_JSON
)
else:
if (
not isinstance(body["username"], text_type)
or len(body["username"]) > 512
):
raise SynapseError(400, "Invalid username")
username = body["username"].encode("utf-8")
if b"\x00" in username:
raise SynapseError(400, "Invalid username")
if "password" not in body:
raise SynapseError(
400, "password must be specified", errcode=Codes.BAD_JSON
)
else:
if (
not isinstance(body["password"], text_type)
or len(body["password"]) > 512
):
raise SynapseError(400, "Invalid password")
password = body["password"].encode("utf-8")
if b"\x00" in password:
raise SynapseError(400, "Invalid password")
admin = body.get("admin", None)
user_type = body.get("user_type", None)
if user_type is not None and user_type not in UserTypes.ALL_USER_TYPES:
raise SynapseError(400, "Invalid user type")
got_mac = body["mac"]
want_mac = hmac.new(
key=self.hs.config.registration_shared_secret.encode(),
digestmod=hashlib.sha1,
)
want_mac.update(nonce.encode("utf8"))
want_mac.update(b"\x00")
want_mac.update(username)
want_mac.update(b"\x00")
want_mac.update(password)
want_mac.update(b"\x00")
want_mac.update(b"admin" if admin else b"notadmin")
if user_type:
want_mac.update(b"\x00")
want_mac.update(user_type.encode("utf8"))
want_mac = want_mac.hexdigest()
if not hmac.compare_digest(want_mac.encode("ascii"), got_mac.encode("ascii")):
raise SynapseError(403, "HMAC incorrect")
# Reuse the parts of RegisterRestServlet to reduce code duplication
from synapse.rest.client.v2_alpha.register import RegisterRestServlet
register = RegisterRestServlet(self.hs)
user_id = await register.registration_handler.register_user(
localpart=body["username"].lower(),
password=body["password"],
admin=bool(admin),
user_type=user_type,
)
result = await register._create_registration_details(user_id, body)
return 200, result
class WhoisRestServlet(RestServlet):
PATTERNS = historical_admin_path_patterns("/whois/(?P<user_id>[^/]*)")
def __init__(self, hs):
self.hs = hs
self.auth = hs.get_auth()
self.handlers = hs.get_handlers()
async def on_GET(self, request, user_id):
target_user = UserID.from_string(user_id)
requester = await self.auth.get_user_by_req(request)
auth_user = requester.user
if target_user != auth_user:
await assert_user_is_admin(self.auth, auth_user)
if not self.hs.is_mine(target_user):
raise SynapseError(400, "Can only whois a local user")
ret = await self.handlers.admin_handler.get_whois(target_user)
return 200, ret
class DeactivateAccountRestServlet(RestServlet):
PATTERNS = historical_admin_path_patterns("/deactivate/(?P<target_user_id>[^/]*)")
def __init__(self, hs):
self._deactivate_account_handler = hs.get_deactivate_account_handler()
self.auth = hs.get_auth()
async def on_POST(self, request, target_user_id):
await assert_requester_is_admin(self.auth, request)
body = parse_json_object_from_request(request, allow_empty_body=True)
erase = body.get("erase", False)
if not isinstance(erase, bool):
raise SynapseError(
http_client.BAD_REQUEST,
"Param 'erase' must be a boolean, if given",
Codes.BAD_JSON,
)
UserID.from_string(target_user_id)
result = await self._deactivate_account_handler.deactivate_account(
target_user_id, erase
)
if result:
id_server_unbind_result = "success"
else:
id_server_unbind_result = "no-support"
return 200, {"id_server_unbind_result": id_server_unbind_result}
class AccountValidityRenewServlet(RestServlet):
PATTERNS = historical_admin_path_patterns("/account_validity/validity$")
def __init__(self, hs):
"""
Args:
hs (synapse.server.HomeServer): server
"""
self.hs = hs
self.account_activity_handler = hs.get_account_validity_handler()
self.auth = hs.get_auth()
async def on_POST(self, request):
await assert_requester_is_admin(self.auth, request)
body = parse_json_object_from_request(request)
if "user_id" not in body:
raise SynapseError(400, "Missing property 'user_id' in the request body")
expiration_ts = await self.account_activity_handler.renew_account_for_user(
body["user_id"],
body.get("expiration_ts"),
not body.get("enable_renewal_emails", True),
)
res = {"expiration_ts": expiration_ts}
return 200, res
class ResetPasswordRestServlet(RestServlet):
"""Post request to allow an administrator reset password for a user.
This needs user to have administrator access in Synapse.
Example:
http://localhost:8008/_synapse/admin/v1/reset_password/
@user:to_reset_password?access_token=admin_access_token
JsonBodyToSend:
{
"new_password": "secret"
}
Returns:
200 OK with empty object if success otherwise an error.
"""
PATTERNS = historical_admin_path_patterns(
"/reset_password/(?P<target_user_id>[^/]*)"
)
def __init__(self, hs):
self.store = hs.get_datastore()
self.hs = hs
self.auth = hs.get_auth()
self._set_password_handler = hs.get_set_password_handler()
async def on_POST(self, request, target_user_id):
"""Post request to allow an administrator reset password for a user.
This needs user to have administrator access in Synapse.
"""
requester = await self.auth.get_user_by_req(request)
await assert_user_is_admin(self.auth, requester.user)
UserID.from_string(target_user_id)
params = parse_json_object_from_request(request)
assert_params_in_dict(params, ["new_password"])
new_password = params["new_password"]
await self._set_password_handler.set_password(
target_user_id, new_password, requester
)
return 200, {}
class SearchUsersRestServlet(RestServlet):
"""Get request to search user table for specific users according to
search term.
This needs user to have administrator access in Synapse.
Example:
http://localhost:8008/_synapse/admin/v1/search_users/
@admin:user?access_token=admin_access_token&term=alice
Returns:
200 OK with json object {list[dict[str, Any]], count} or empty object.
"""
PATTERNS = historical_admin_path_patterns("/search_users/(?P<target_user_id>[^/]*)")
def __init__(self, hs):
self.store = hs.get_datastore()
self.hs = hs
self.auth = hs.get_auth()
self.handlers = hs.get_handlers()
async def on_GET(self, request, target_user_id):
"""Get request to search user table for specific users according to
search term.
This needs user to have a administrator access in Synapse.
"""
await assert_requester_is_admin(self.auth, request)
target_user = UserID.from_string(target_user_id)
# To allow all users to get the users list
# if not is_admin and target_user != auth_user:
# raise AuthError(403, "You are not a server admin")
if not self.hs.is_mine(target_user):
raise SynapseError(400, "Can only users a local user")
term = parse_string(request, "term", required=True)
logger.info("term: %s ", term)
ret = await self.handlers.admin_handler.search_users(term)
return 200, ret
class UserAdminServlet(RestServlet):
"""
Get or set whether or not a user is a server administrator.
Note that only local users can be server administrators, and that an
administrator may not demote themselves.
Only server administrators can use this API.
Examples:
* Get
GET /_synapse/admin/v1/users/@nonadmin:example.com/admin
response on success:
{
"admin": false
}
* Set
PUT /_synapse/admin/v1/users/@reivilibre:librepush.net/admin
request body:
{
"admin": true
}
response on success:
{}
"""
PATTERNS = (re.compile("^/_synapse/admin/v1/users/(?P<user_id>@[^/]*)/admin$"),)
def __init__(self, hs):
self.hs = hs
self.auth = hs.get_auth()
self.handlers = hs.get_handlers()
async def on_GET(self, request, user_id):
await assert_requester_is_admin(self.auth, request)
target_user = UserID.from_string(user_id)
if not self.hs.is_mine(target_user):
raise SynapseError(400, "Only local users can be admins of this homeserver")
is_admin = await self.handlers.admin_handler.get_user_server_admin(target_user)
is_admin = bool(is_admin)
return 200, {"admin": is_admin}
async def on_PUT(self, request, user_id):
requester = await self.auth.get_user_by_req(request)
await assert_user_is_admin(self.auth, requester.user)
auth_user = requester.user
target_user = UserID.from_string(user_id)
body = parse_json_object_from_request(request)
assert_params_in_dict(body, ["admin"])
if not self.hs.is_mine(target_user):
raise SynapseError(400, "Only local users can be admins of this homeserver")
set_admin_to = bool(body["admin"])
if target_user == auth_user and not set_admin_to:
raise SynapseError(400, "You may not demote yourself.")
await self.handlers.admin_handler.set_user_server_admin(
target_user, set_admin_to
)
return 200, {}