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# -*- coding: utf-8 -*-
# Copyright 2014, 2015 OpenMarket Ltd
#
# 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.
from twisted.internet import defer
from sqlite3 import IntegrityError
from synapse.api.errors import StoreError, Codes
from ._base import SQLBaseStore, cached
class RegistrationStore(SQLBaseStore):
def __init__(self, hs):
super(RegistrationStore, self).__init__(hs)
self.clock = hs.get_clock()
@defer.inlineCallbacks
def add_access_token_to_user(self, user_id, token):
"""Adds an access token for the given user.
Args:
user_id (str): The user ID.
token (str): The new access token to add.
Raises:
StoreError if there was a problem adding this.
"""
next_id = yield self._access_tokens_id_gen.get_next()
self._simple_insert(
"access_tokens",
{
"id": next_id,
"user_id": user_id,
"token": token
},
desc="add_access_token_to_user",
)
@defer.inlineCallbacks
def register(self, user_id, token, password_hash):
"""Attempts to register an account.
Args:
user_id (str): The desired user ID to register.
token (str): The desired access token to use for this user.
password_hash (str): Optional. The password hash for this user.
Raises:
StoreError if the user_id could not be registered.
"""
yield self.runInteraction(
"register",
self._register, user_id, token, password_hash
)
def _register(self, txn, user_id, token, password_hash):
now = int(self.clock.time())
next_id = self._access_tokens_id_gen.get_next_txn(txn)
try:
txn.execute("INSERT INTO users(name, password_hash, creation_ts) "
"VALUES (?,?,?)",
[user_id, password_hash, now])
except IntegrityError:
raise StoreError(
400, "User ID already taken.", errcode=Codes.USER_IN_USE
)
# it's possible for this to get a conflict, but only for a single user
# since tokens are namespaced based on their user ID
txn.execute(
"INSERT INTO access_tokens(id, user_id, token)"
" VALUES (?,?,?)",
(next_id, user_id, token,)
)
@defer.inlineCallbacks
def get_user_by_id(self, user_id):
user_info = yield self._simple_select_one(
table="users",
keyvalues={
"name": user_id,
},
retcols=["name", "password_hash"],
allow_none=True,
)
if user_info:
user_info["password_hash"] = user_info["password_hash"].decode("utf8")
defer.returnValue(user_info)
@cached()
# TODO(paul): Currently there's no code to invalidate this cache. That
# means if/when we ever add internal ways to invalidate access tokens or
# change whether a user is a server admin, those will need to invoke
# store.get_user_by_token.invalidate(token)
def get_user_by_token(self, token):
"""Get a user from the given access token.
Args:
token (str): The access token of a user.
Returns:
dict: Including the name (user_id), device_id and whether they are
an admin.
Raises:
StoreError if no user was found.
"""
return self.runInteraction(
"get_user_by_token",
self._query_for_auth,
token
)
@defer.inlineCallbacks
def is_server_admin(self, user):
res = yield self._simple_select_one_onecol(
table="users",
keyvalues={"name": user.to_string()},
retcol="admin",
allow_none=True,
desc="is_server_admin",
)
defer.returnValue(res if res else False)
def _query_for_auth(self, txn, token):
sql = (
"SELECT users.name, users.admin,"
" access_tokens.device_id, access_tokens.id as token_id"
" FROM users"
" INNER JOIN access_tokens on users.name = access_tokens.user_id"
" WHERE token = ?"
)
txn.execute(sql, (token,))
rows = self.cursor_to_dict(txn)
if rows:
return rows[0]
raise StoreError(404, "Token not found.")
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