306 lines
9.7 KiB
Python
306 lines
9.7 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014, 2015 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from twisted.internet import defer
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from synapse.api.errors import StoreError, Codes
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from ._base import SQLBaseStore
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from synapse.util.caches.descriptors import cached
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class RegistrationStore(SQLBaseStore):
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def __init__(self, hs):
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super(RegistrationStore, self).__init__(hs)
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self.clock = hs.get_clock()
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@defer.inlineCallbacks
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def add_access_token_to_user(self, user_id, token):
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"""Adds an access token for the given user.
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Args:
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user_id (str): The user ID.
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token (str): The new access token to add.
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Raises:
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StoreError if there was a problem adding this.
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"""
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next_id = yield self._access_tokens_id_gen.get_next()
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yield self._simple_insert(
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"access_tokens",
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{
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"id": next_id,
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"user_id": user_id,
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"token": token
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},
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desc="add_access_token_to_user",
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)
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@defer.inlineCallbacks
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def add_refresh_token_to_user(self, user_id, token):
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"""Adds a refresh token for the given user.
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Args:
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user_id (str): The user ID.
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token (str): The new refresh token to add.
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Raises:
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StoreError if there was a problem adding this.
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"""
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next_id = yield self._refresh_tokens_id_gen.get_next()
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yield self._simple_insert(
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"refresh_tokens",
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{
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"id": next_id,
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"user_id": user_id,
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"token": token
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},
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desc="add_refresh_token_to_user",
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)
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@defer.inlineCallbacks
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def register(self, user_id, token, password_hash):
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"""Attempts to register an account.
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Args:
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user_id (str): The desired user ID to register.
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token (str): The desired access token to use for this user.
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password_hash (str): Optional. The password hash for this user.
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Raises:
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StoreError if the user_id could not be registered.
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"""
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yield self.runInteraction(
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"register",
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self._register, user_id, token, password_hash
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)
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def _register(self, txn, user_id, token, password_hash):
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now = int(self.clock.time())
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next_id = self._access_tokens_id_gen.get_next_txn(txn)
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try:
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txn.execute("INSERT INTO users(name, password_hash, creation_ts) "
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"VALUES (?,?,?)",
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[user_id, password_hash, now])
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except self.database_engine.module.IntegrityError:
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raise StoreError(
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400, "User ID already taken.", errcode=Codes.USER_IN_USE
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)
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if token:
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# it's possible for this to get a conflict, but only for a single user
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# since tokens are namespaced based on their user ID
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txn.execute(
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"INSERT INTO access_tokens(id, user_id, token)"
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" VALUES (?,?,?)",
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(next_id, user_id, token,)
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)
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def get_user_by_id(self, user_id):
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return self._simple_select_one(
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table="users",
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keyvalues={
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"name": user_id,
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},
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retcols=["name", "password_hash"],
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allow_none=True,
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)
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def get_users_by_id_case_insensitive(self, user_id):
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"""Gets users that match user_id case insensitively.
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Returns a mapping of user_id -> password_hash.
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"""
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def f(txn):
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sql = (
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"SELECT name, password_hash FROM users"
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" WHERE lower(name) = lower(?)"
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)
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txn.execute(sql, (user_id,))
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return dict(txn.fetchall())
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return self.runInteraction("get_users_by_id_case_insensitive", f)
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@defer.inlineCallbacks
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def user_set_password_hash(self, user_id, password_hash):
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"""
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NB. This does *not* evict any cache because the one use for this
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removes most of the entries subsequently anyway so it would be
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pointless. Use flush_user separately.
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"""
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yield self._simple_update_one('users', {
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'name': user_id
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}, {
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'password_hash': password_hash
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})
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@defer.inlineCallbacks
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def user_delete_access_tokens(self, user_id):
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yield self.runInteraction(
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"user_delete_access_tokens",
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self._user_delete_access_tokens, user_id
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)
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def _user_delete_access_tokens(self, txn, user_id):
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txn.execute(
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"DELETE FROM access_tokens WHERE user_id = ?",
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(user_id, )
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)
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@defer.inlineCallbacks
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def flush_user(self, user_id):
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rows = yield self._execute(
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'flush_user', None,
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"SELECT token FROM access_tokens WHERE user_id = ?",
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user_id
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)
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for r in rows:
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self.get_user_by_access_token.invalidate((r,))
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@cached()
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def get_user_by_access_token(self, token):
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"""Get a user from the given access token.
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Args:
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token (str): The access token of a user.
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Returns:
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dict: Including the name (user_id) and the ID of their access token.
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Raises:
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StoreError if no user was found.
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"""
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return self.runInteraction(
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"get_user_by_access_token",
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self._query_for_auth,
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token
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)
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def exchange_refresh_token(self, refresh_token, token_generator):
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"""Exchange a refresh token for a new access token and refresh token.
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Doing so invalidates the old refresh token - refresh tokens are single
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use.
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Args:
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token (str): The refresh token of a user.
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token_generator (fn: str -> str): Function which, when given a
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user ID, returns a unique refresh token for that user. This
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function must never return the same value twice.
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Returns:
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tuple of (user_id, refresh_token)
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Raises:
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StoreError if no user was found with that refresh token.
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"""
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return self.runInteraction(
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"exchange_refresh_token",
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self._exchange_refresh_token,
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refresh_token,
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token_generator
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)
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def _exchange_refresh_token(self, txn, old_token, token_generator):
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sql = "SELECT user_id FROM refresh_tokens WHERE token = ?"
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txn.execute(sql, (old_token,))
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rows = self.cursor_to_dict(txn)
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if not rows:
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raise StoreError(403, "Did not recognize refresh token")
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user_id = rows[0]["user_id"]
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# TODO(danielwh): Maybe perform a validation on the macaroon that
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# macaroon.user_id == user_id.
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new_token = token_generator(user_id)
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sql = "UPDATE refresh_tokens SET token = ? WHERE token = ?"
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txn.execute(sql, (new_token, old_token,))
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return user_id, new_token
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@defer.inlineCallbacks
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def is_server_admin(self, user):
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res = yield self._simple_select_one_onecol(
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table="users",
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keyvalues={"name": user.to_string()},
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retcol="admin",
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allow_none=True,
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desc="is_server_admin",
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)
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defer.returnValue(res if res else False)
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def _query_for_auth(self, txn, token):
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sql = (
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"SELECT users.name, access_tokens.id as token_id"
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" FROM users"
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" INNER JOIN access_tokens on users.name = access_tokens.user_id"
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" WHERE token = ?"
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)
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txn.execute(sql, (token,))
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rows = self.cursor_to_dict(txn)
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if rows:
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return rows[0]
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return None
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@defer.inlineCallbacks
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def user_add_threepid(self, user_id, medium, address, validated_at, added_at):
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yield self._simple_upsert("user_threepids", {
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"medium": medium,
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"address": address,
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}, {
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"user_id": user_id,
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"validated_at": validated_at,
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"added_at": added_at,
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})
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@defer.inlineCallbacks
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def user_get_threepids(self, user_id):
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ret = yield self._simple_select_list(
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"user_threepids", {
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"user_id": user_id
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},
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['medium', 'address', 'validated_at', 'added_at'],
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'user_get_threepids'
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)
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defer.returnValue(ret)
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@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(
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"user_threepids",
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{
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"medium": medium,
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"address": address
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},
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['user_id'], True, 'get_user_id_by_threepid'
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)
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if ret:
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defer.returnValue(ret['user_id'])
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defer.returnValue(None)
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@defer.inlineCallbacks
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def count_all_users(self):
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"""Counts all users registered on the homeserver."""
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def _count_users(txn):
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txn.execute("SELECT COUNT(*) AS users FROM users")
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rows = self.cursor_to_dict(txn)
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if rows:
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return rows[0]["users"]
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return 0
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ret = yield self.runInteraction("count_users", _count_users)
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defer.returnValue(ret)
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