MatrixSynapse/synapse/storage/registration.py

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# -*- coding: utf-8 -*-
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# Copyright 2014 - 2016 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.
import re
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from twisted.internet import defer
from synapse.api.errors import StoreError, Codes
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from synapse.storage import background_updates
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from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
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class RegistrationStore(background_updates.BackgroundUpdateStore):
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def __init__(self, hs):
super(RegistrationStore, self).__init__(hs)
self.clock = hs.get_clock()
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self.register_background_index_update(
"access_tokens_device_index",
index_name="access_tokens_device_id",
table="access_tokens",
columns=["user_id", "device_id"],
)
self.register_background_index_update(
"refresh_tokens_device_index",
index_name="refresh_tokens_device_id",
table="refresh_tokens",
columns=["user_id", "device_id"],
)
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@defer.inlineCallbacks
def add_access_token_to_user(self, user_id, token, device_id=None):
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"""Adds an access token for the given user.
Args:
user_id (str): The user ID.
token (str): The new access token to add.
device_id (str): ID of the device to associate with the access
token
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Raises:
StoreError if there was a problem adding this.
"""
next_id = 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,
"token": token,
"device_id": device_id,
},
desc="add_access_token_to_user",
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)
def register(self, user_id, token=None, password_hash=None,
was_guest=False, make_guest=False, appservice_id=None,
create_profile_with_localpart=None, admin=False):
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"""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. If this
is not None, the given access token is associated with the user
id.
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password_hash (str): Optional. The password hash for this user.
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was_guest (bool): Optional. Whether this is a guest account being
upgraded to a non-guest account.
make_guest (boolean): True if the the new user should be guest,
false to add a regular user account.
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appservice_id (str): The ID of the appservice registering the user.
create_profile_with_localpart (str): Optionally create a profile for
the given localpart.
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Raises:
StoreError if the user_id could not be registered.
"""
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return self.runInteraction(
"register",
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self._register,
user_id,
token,
password_hash,
was_guest,
make_guest,
appservice_id,
create_profile_with_localpart,
admin
)
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def _register(
self,
txn,
user_id,
token,
password_hash,
was_guest,
make_guest,
appservice_id,
create_profile_with_localpart,
admin,
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):
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now = int(self.clock.time())
next_id = self._access_tokens_id_gen.get_next()
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try:
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if was_guest:
# Ensure that the guest user actually exists
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# ``allow_none=False`` makes this raise an exception
# if the row isn't in the database.
self._simple_select_one_txn(
txn,
"users",
keyvalues={
"name": user_id,
"is_guest": 1,
},
retcols=("name",),
allow_none=False,
)
self._simple_update_one_txn(
txn,
"users",
keyvalues={
"name": user_id,
"is_guest": 1,
},
updatevalues={
"password_hash": password_hash,
"upgrade_ts": now,
"is_guest": 1 if make_guest else 0,
"appservice_id": appservice_id,
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"admin": 1 if admin else 0,
}
)
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else:
self._simple_insert_txn(
txn,
"users",
values={
"name": user_id,
"password_hash": password_hash,
"creation_ts": now,
"is_guest": 1 if make_guest else 0,
"appservice_id": appservice_id,
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"admin": 1 if admin else 0,
}
)
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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if create_profile_with_localpart:
txn.execute(
"INSERT INTO profiles(user_id) VALUES (?)",
(create_profile_with_localpart,)
)
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self._invalidate_cache_and_stream(
txn, self.get_user_by_id, (user_id,)
)
txn.call_after(self.is_guest.invalidate, (user_id,))
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@cached()
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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", "is_guest"],
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allow_none=True,
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desc="get_user_by_id",
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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"
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" WHERE lower(name) = lower(?)"
)
txn.execute(sql, (user_id,))
return dict(txn.fetchall())
return self.runInteraction("get_users_by_id_case_insensitive", f)
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.
"""
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def user_set_password_hash_txn(txn):
self._simple_update_one_txn(
txn,
'users', {
'name': user_id
},
{
'password_hash': password_hash
}
)
self._invalidate_cache_and_stream(
txn, self.get_user_by_id, (user_id,)
)
return self.runInteraction(
"user_set_password_hash", user_set_password_hash_txn
)
@defer.inlineCallbacks
def user_delete_access_tokens(self, user_id, except_token_id=None,
device_id=None,
delete_refresh_tokens=False):
"""
Invalidate access/refresh tokens belonging to a user
Args:
user_id (str): ID of user the tokens belong to
except_token_id (str): list of access_tokens IDs which should
*not* be deleted
device_id (str|None): ID of device the tokens are associated with.
If None, tokens associated with any device (or no device) will
be deleted
delete_refresh_tokens (bool): True to delete refresh tokens as
well as access tokens.
Returns:
defer.Deferred:
"""
def f(txn):
keyvalues = {
"user_id": user_id,
}
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if device_id is not None:
keyvalues["device_id"] = device_id
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if delete_refresh_tokens:
self._simple_delete_txn(
txn,
table="refresh_tokens",
keyvalues=keyvalues,
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)
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items = keyvalues.items()
where_clause = " AND ".join(k + " = ?" for k, _ in items)
values = [v for _, v in items]
if except_token_id:
where_clause += " AND id != ?"
values.append(except_token_id)
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txn.execute(
"SELECT token FROM access_tokens WHERE %s" % where_clause,
values
)
rows = self.cursor_to_dict(txn)
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for row in rows:
self._invalidate_cache_and_stream(
txn, self.get_user_by_access_token, (row["token"],)
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)
txn.execute(
"DELETE FROM access_tokens WHERE %s" % where_clause,
values
)
yield self.runInteraction(
"user_delete_access_tokens", f,
)
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def delete_access_token(self, access_token):
def f(txn):
self._simple_delete_one_txn(
txn,
table="access_tokens",
keyvalues={
"token": access_token
},
)
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self._invalidate_cache_and_stream(
txn, self.get_user_by_access_token, (access_token,)
)
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return self.runInteraction("delete_access_token", f)
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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:
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defer.Deferred: None, if the token did not match, otherwise dict
including the keys `name`, `is_guest`, `device_id`, `token_id`.
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"""
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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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@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)
@cachedInlineCallbacks()
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def is_guest(self, user_id):
res = yield self._simple_select_one_onecol(
table="users",
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keyvalues={"name": user_id},
retcol="is_guest",
allow_none=True,
desc="is_guest",
)
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, users.is_guest, access_tokens.id as token_id,"
" access_tokens.device_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", {
"medium": medium,
"address": address,
}, {
"user_id": user_id,
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"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)
def user_delete_threepids(self, user_id):
return self._simple_delete(
"user_threepids",
keyvalues={
"user_id": user_id,
},
desc="user_delete_threepids",
)
def user_delete_threepid(self, user_id, medium, address):
return self._simple_delete(
"user_threepids",
keyvalues={
"user_id": user_id,
"medium": medium,
"address": address,
},
desc="user_delete_threepids",
)
@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)
@defer.inlineCallbacks
def find_next_generated_user_id_localpart(self):
"""
Gets the localpart of the next generated user ID.
Generated user IDs are integers, and we aim for them to be as small as
we can. Unfortunately, it's possible some of them are already taken by
existing users, and there may be gaps in the already taken range. This
function returns the start of the first allocatable gap. This is to
avoid the case of ID 10000000 being pre-allocated, so us wasting the
first (and shortest) many generated user IDs.
"""
def _find_next_generated_user_id(txn):
txn.execute("SELECT name FROM users")
rows = self.cursor_to_dict(txn)
regex = re.compile("^@(\d+):")
found = set()
for r in rows:
user_id = r["name"]
match = regex.search(user_id)
if match:
found.add(int(match.group(1)))
for i in xrange(len(found) + 1):
if i not in found:
return i
defer.returnValue((yield self.runInteraction(
"find_next_generated_user_id",
_find_next_generated_user_id
)))
@defer.inlineCallbacks
def get_3pid_guest_access_token(self, medium, address):
ret = yield self._simple_select_one(
"threepid_guest_access_tokens",
{
"medium": medium,
"address": address
},
["guest_access_token"], True, 'get_3pid_guest_access_token'
)
if ret:
defer.returnValue(ret["guest_access_token"])
defer.returnValue(None)
@defer.inlineCallbacks
def save_or_get_3pid_guest_access_token(
self, medium, address, access_token, inviter_user_id
):
"""
Gets the 3pid's guest access token if exists, else saves access_token.
Args:
medium (str): Medium of the 3pid. Must be "email".
address (str): 3pid address.
access_token (str): The access token to persist if none is
already persisted.
inviter_user_id (str): User ID of the inviter.
Returns:
deferred str: Whichever access token is persisted at the end
of this function call.
"""
def insert(txn):
txn.execute(
"INSERT INTO threepid_guest_access_tokens "
"(medium, address, guest_access_token, first_inviter) "
"VALUES (?, ?, ?, ?)",
(medium, address, access_token, inviter_user_id)
)
try:
yield self.runInteraction("save_3pid_guest_access_token", insert)
defer.returnValue(access_token)
except self.database_engine.module.IntegrityError:
ret = yield self.get_3pid_guest_access_token(medium, address)
defer.returnValue(ret)