MatrixSynapse/synapse/storage/registration.py

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# -*- coding: utf-8 -*-
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# Copyright 2014, 2015 OpenMarket Ltd
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#
# 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.
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from twisted.internet import defer
from synapse.api.errors import StoreError, Codes
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from ._base import SQLBaseStore
from synapse.util.caches.descriptors import cached
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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()
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yield self._simple_insert(
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"access_tokens",
{
"id": next_id,
"user_id": user_id,
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"token": token
},
desc="add_access_token_to_user",
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)
@defer.inlineCallbacks
def add_refresh_token_to_user(self, user_id, token):
"""Adds a refresh token for the given user.
Args:
user_id (str): The user ID.
token (str): The new refresh token to add.
Raises:
StoreError if there was a problem adding this.
"""
next_id = yield self._refresh_tokens_id_gen.get_next()
yield self._simple_insert(
"refresh_tokens",
{
"id": next_id,
"user_id": user_id,
"token": token
},
desc="add_refresh_token_to_user",
)
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@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
)
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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)
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try:
txn.execute("INSERT INTO users(name, password_hash, creation_ts) "
"VALUES (?,?,?)",
[user_id, password_hash, now])
except self.database_engine.module.IntegrityError:
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raise StoreError(
400, "User ID already taken.", errcode=Codes.USER_IN_USE
)
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if token:
# 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,)
)
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def get_user_by_id(self, user_id):
return self._simple_select_one(
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table="users",
keyvalues={
"name": user_id,
},
retcols=["name", "password_hash"],
allow_none=True,
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)
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def get_users_by_id_case_insensitive(self, user_id):
"""Gets users that match user_id case insensitively.
Returns a mapping of user_id -> password_hash.
"""
def f(txn):
sql = (
"SELECT name, password_hash FROM users"
" WHERE lower(name) = lower(?)"
)
txn.execute(sql, (user_id,))
return dict(txn.fetchall())
return self.runInteraction("get_users_by_id_case_insensitive", f)
@defer.inlineCallbacks
def user_set_password_hash(self, user_id, password_hash):
"""
NB. This does *not* evict any cache because the one use for this
removes most of the entries subsequently anyway so it would be
pointless. Use flush_user separately.
"""
yield self._simple_update_one('users', {
'name': user_id
}, {
'password_hash': password_hash
})
@defer.inlineCallbacks
def user_delete_access_tokens(self, user_id):
yield self.runInteraction(
"user_delete_access_tokens",
self._user_delete_access_tokens, user_id
)
def _user_delete_access_tokens(self, txn, user_id):
txn.execute(
"DELETE FROM access_tokens WHERE user_id = ?",
(user_id, )
)
@defer.inlineCallbacks
def flush_user(self, user_id):
rows = yield self._execute(
'flush_user', None,
"SELECT token FROM access_tokens WHERE user_id = ?",
user_id
)
for r in rows:
self.get_user_by_access_token.invalidate((r,))
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@cached()
def get_user_by_access_token(self, token):
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"""Get a user from the given access token.
Args:
token (str): The access token of a user.
Returns:
dict: Including the name (user_id) and the ID of their access token.
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Raises:
StoreError if no user was found.
"""
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return self.runInteraction(
"get_user_by_access_token",
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self._query_for_auth,
token
)
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def exchange_refresh_token(self, refresh_token, token_generator):
"""Exchange a refresh token for a new access token and refresh token.
Doing so invalidates the old refresh token - refresh tokens are single
use.
Args:
token (str): The refresh token of a user.
token_generator (fn: str -> str): Function which, when given a
user ID, returns a unique refresh token for that user. This
function must never return the same value twice.
Returns:
tuple of (user_id, refresh_token)
Raises:
StoreError if no user was found with that refresh token.
"""
return self.runInteraction(
"exchange_refresh_token",
self._exchange_refresh_token,
refresh_token,
token_generator
)
def _exchange_refresh_token(self, txn, old_token, token_generator):
sql = "SELECT user_id FROM refresh_tokens WHERE token = ?"
txn.execute(sql, (old_token,))
rows = self.cursor_to_dict(txn)
if not rows:
raise StoreError(403, "Did not recognize refresh token")
user_id = rows[0]["user_id"]
# TODO(danielwh): Maybe perform a validation on the macaroon that
# macaroon.user_id == user_id.
new_token = token_generator(user_id)
sql = "UPDATE refresh_tokens SET token = ? WHERE token = ?"
txn.execute(sql, (new_token, old_token,))
return user_id, new_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)
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def _query_for_auth(self, txn, token):
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sql = (
"SELECT users.name, access_tokens.id as token_id"
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" FROM users"
" INNER JOIN access_tokens on users.name = access_tokens.user_id"
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" WHERE token = ?"
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)
txn.execute(sql, (token,))
rows = self.cursor_to_dict(txn)
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if rows:
return rows[0]
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return None
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@defer.inlineCallbacks
def user_add_threepid(self, user_id, medium, address, validated_at, added_at):
yield self._simple_upsert("user_threepids", {
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"user_id": user_id,
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"medium": medium,
"address": address,
}, {
"validated_at": validated_at,
"added_at": added_at,
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})
@defer.inlineCallbacks
def user_get_threepids(self, user_id):
ret = yield self._simple_select_list(
"user_threepids", {
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"user_id": user_id
},
['medium', 'address', 'validated_at', 'added_at'],
'user_get_threepids'
)
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defer.returnValue(ret)
@defer.inlineCallbacks
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def get_user_id_by_threepid(self, medium, address):
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ret = yield self._simple_select_one(
"user_threepids",
{
"medium": medium,
"address": address
},
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['user_id'], True, 'get_user_id_by_threepid'
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)
if ret:
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defer.returnValue(ret['user_id'])
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defer.returnValue(None)
@defer.inlineCallbacks
def count_all_users(self):
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"""Counts all users registered on the homeserver."""
def _count_users(txn):
txn.execute("SELECT COUNT(*) AS users FROM users")
rows = self.cursor_to_dict(txn)
if rows:
return rows[0]["users"]
return 0
ret = yield self.runInteraction("count_users", _count_users)
defer.returnValue(ret)