diff --git a/synapse/config/_base.py b/synapse/config/_base.py
index ad5ab6ad62..db7bfeb6a9 100644
--- a/synapse/config/_base.py
+++ b/synapse/config/_base.py
@@ -22,6 +22,7 @@ import time
import urllib.parse
from collections import OrderedDict
from hashlib import sha256
+from io import open as io_open
from textwrap import dedent
from typing import Any, Callable, List, MutableMapping, Optional
@@ -190,7 +191,7 @@ class Config:
@classmethod
def read_file(cls, file_path, config_name):
cls.check_file(file_path, config_name)
- with open(file_path) as file_stream:
+ with io_open(file_path, encoding="utf-8") as file_stream:
return file_stream.read()
def read_templates(
@@ -832,11 +833,26 @@ class ShardedWorkerHandlingConfig:
def should_handle(self, instance_name: str, key: str) -> bool:
"""Whether this instance is responsible for handling the given key.
"""
-
- # If multiple instances are not defined we always return true.
+ # If multiple instances are not defined we always return true
if not self.instances or len(self.instances) == 1:
return True
+ return self.get_instance(key) == instance_name
+
+ def get_instance(self, key: str) -> str:
+ """Get the instance responsible for handling the given key.
+
+ Note: For things like federation sending the config for which instance
+ is sending is known only to the sender instance if there is only one.
+ Therefore `should_handle` should be used where possible.
+ """
+
+ if not self.instances:
+ return "master"
+
+ if len(self.instances) == 1:
+ return self.instances[0]
+
# We shard by taking the hash, modulo it by the number of instances and
# then checking whether this instance matches the instance at that
# index.
@@ -846,7 +862,7 @@ class ShardedWorkerHandlingConfig:
dest_hash = sha256(key.encode("utf8")).digest()
dest_int = int.from_bytes(dest_hash, byteorder="little")
remainder = dest_int % (len(self.instances))
- return self.instances[remainder] == instance_name
+ return self.instances[remainder]
__all__ = ["Config", "RootConfig", "ShardedWorkerHandlingConfig"]
|
