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Add a utility function for generating fake event IDs (#17557)

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Andrew Morgan 2024-08-13 17:55:05 +01:00 committed by GitHub
parent 8fea190a1f
commit 6a11bdf01d
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4 changed files with 36 additions and 9 deletions

1
changelog.d/17557.misc Normal file
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@ -0,0 +1 @@
Add a utility function for generating random event IDs.

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@ -67,7 +67,8 @@ from synapse.streams.config import PaginationConfig
from synapse.types import JsonDict, Requester, StreamToken, ThirdPartyInstanceID, UserID
from synapse.types.state import StateFilter
from synapse.util.cancellation import cancellable
from synapse.util.stringutils import parse_and_validate_server_name, random_string
from synapse.util.events import generate_fake_event_id
from synapse.util.stringutils import parse_and_validate_server_name
if TYPE_CHECKING:
from synapse.server import HomeServer
@ -325,7 +326,7 @@ class RoomStateEventRestServlet(RestServlet):
)
event_id = event.event_id
except ShadowBanError:
event_id = "$" + random_string(43)
event_id = generate_fake_event_id()
set_tag("event_id", event_id)
ret = {"event_id": event_id}
@ -377,7 +378,7 @@ class RoomSendEventRestServlet(TransactionRestServlet):
)
event_id = event.event_id
except ShadowBanError:
event_id = "$" + random_string(43)
event_id = generate_fake_event_id()
set_tag("event_id", event_id)
return 200, {"event_id": event_id}
@ -1193,7 +1194,7 @@ class RoomRedactEventRestServlet(TransactionRestServlet):
event_id = event.event_id
except ShadowBanError:
event_id = "$" + random_string(43)
event_id = generate_fake_event_id()
set_tag("event_id", event_id)
return 200, {"event_id": event_id}

29
synapse/util/events.py Normal file
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@ -0,0 +1,29 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright (C) 2024 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
#
from synapse.util.stringutils import random_string
def generate_fake_event_id() -> str:
"""
Generate an event ID from random ASCII characters.
This is primarily useful for generating fake event IDs in response to
requests from shadow-banned users.
Returns:
A string intended to look like an event ID, but with no actual meaning.
"""
return "$" + random_string(43)

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@ -44,7 +44,7 @@ from synapse.rest.client import login, room
from synapse.server import HomeServer
from synapse.storage.databases.main.events_worker import EventCacheEntry
from synapse.util import Clock
from synapse.util.stringutils import random_string
from synapse.util.events import generate_fake_event_id
from tests import unittest
from tests.test_utils import event_injection
@ -52,10 +52,6 @@ from tests.test_utils import event_injection
logger = logging.getLogger(__name__)
def generate_fake_event_id() -> str:
return "$fake_" + random_string(43)
class FederationTestCase(unittest.FederatingHomeserverTestCase):
servlets = [
admin.register_servlets,