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![Sean Quah](/assets/img/avatar_default.png)
The second argument of `ConfigError` is a path, passed as an optional `Iterable[str]` and not a `str`. If a string is passed directly, Synapse unhelpfully emits "Error in configuration at a.p.p._.s.e.r.v.i.c.e._.c.o.n.f.i.g._.f.i.l.e.s'" when the config option has the wrong data type. Signed-off-by: Sean Quah <seanq@matrix.org>
184 lines
7.0 KiB
Python
184 lines
7.0 KiB
Python
# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright 2021 The Matrix.org Foundation C.I.C.
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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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import logging
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from typing import Any, Dict, List
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from urllib import parse as urlparse
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import yaml
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from netaddr import IPSet
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from synapse.appservice import ApplicationService
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from synapse.types import JsonDict, UserID
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from ._base import Config, ConfigError
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logger = logging.getLogger(__name__)
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class AppServiceConfig(Config):
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section = "appservice"
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def read_config(self, config: JsonDict, **kwargs: Any) -> None:
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self.app_service_config_files = config.get("app_service_config_files", [])
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if not isinstance(self.app_service_config_files, list) or not all(
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type(x) is str for x in self.app_service_config_files
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):
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raise ConfigError(
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"Expected '%s' to be a list of AS config files:"
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% (self.app_service_config_files),
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("app_service_config_files",),
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)
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self.track_appservice_user_ips = config.get("track_appservice_user_ips", False)
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def load_appservices(
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hostname: str, config_files: List[str]
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) -> List[ApplicationService]:
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"""Returns a list of Application Services from the config files."""
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# Dicts of value -> filename
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seen_as_tokens: Dict[str, str] = {}
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seen_ids: Dict[str, str] = {}
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appservices = []
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for config_file in config_files:
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try:
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with open(config_file) as f:
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appservice = _load_appservice(hostname, yaml.safe_load(f), config_file)
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if appservice.id in seen_ids:
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raise ConfigError(
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"Cannot reuse ID across application services: "
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"%s (files: %s, %s)"
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% (appservice.id, config_file, seen_ids[appservice.id])
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)
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seen_ids[appservice.id] = config_file
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if appservice.token in seen_as_tokens:
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raise ConfigError(
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"Cannot reuse as_token across application services: "
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"%s (files: %s, %s)"
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% (
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appservice.token,
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config_file,
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seen_as_tokens[appservice.token],
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)
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)
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seen_as_tokens[appservice.token] = config_file
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logger.info("Loaded application service: %s", appservice)
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appservices.append(appservice)
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except Exception as e:
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logger.error("Failed to load appservice from '%s'", config_file)
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logger.exception(e)
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raise
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return appservices
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def _load_appservice(
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hostname: str, as_info: JsonDict, config_filename: str
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) -> ApplicationService:
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required_string_fields = ["id", "as_token", "hs_token", "sender_localpart"]
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for field in required_string_fields:
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if not isinstance(as_info.get(field), str):
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raise KeyError(
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"Required string field: '%s' (%s)" % (field, config_filename)
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)
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# 'url' must either be a string or explicitly null, not missing
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# to avoid accidentally turning off push for ASes.
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if not isinstance(as_info.get("url"), str) and as_info.get("url", "") is not None:
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raise KeyError(
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"Required string field or explicit null: 'url' (%s)" % (config_filename,)
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)
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localpart = as_info["sender_localpart"]
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if urlparse.quote(localpart) != localpart:
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raise ValueError("sender_localpart needs characters which are not URL encoded.")
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user = UserID(localpart, hostname)
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user_id = user.to_string()
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# Rate limiting for users of this AS is on by default (excludes sender)
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rate_limited = as_info.get("rate_limited")
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if not isinstance(rate_limited, bool):
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rate_limited = True
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# namespace checks
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if not isinstance(as_info.get("namespaces"), dict):
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raise KeyError("Requires 'namespaces' object.")
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for ns in ApplicationService.NS_LIST:
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# specific namespaces are optional
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if ns in as_info["namespaces"]:
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# expect a list of dicts with exclusive and regex keys
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for regex_obj in as_info["namespaces"][ns]:
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if not isinstance(regex_obj, dict):
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raise ValueError(
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"Expected namespace entry in %s to be an object, but got %s",
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ns,
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regex_obj,
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)
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if not isinstance(regex_obj.get("regex"), str):
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raise ValueError("Missing/bad type 'regex' key in %s", regex_obj)
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if not isinstance(regex_obj.get("exclusive"), bool):
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raise ValueError(
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"Missing/bad type 'exclusive' key in %s", regex_obj
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)
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# protocols check
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protocols = as_info.get("protocols")
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if protocols:
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if not isinstance(protocols, list):
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raise KeyError("Optional 'protocols' must be a list if present.")
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for p in protocols:
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if not isinstance(p, str):
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raise KeyError("Bad value for 'protocols' item")
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if as_info["url"] is None:
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logger.info(
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"(%s) Explicitly empty 'url' provided. This application service"
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" will not receive events or queries.",
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config_filename,
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)
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ip_range_whitelist = None
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if as_info.get("ip_range_whitelist"):
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ip_range_whitelist = IPSet(as_info.get("ip_range_whitelist"))
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supports_ephemeral = as_info.get("de.sorunome.msc2409.push_ephemeral", False)
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# Opt-in flag for the MSC3202-specific transactional behaviour.
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# When enabled, appservice transactions contain the following information:
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# - device One-Time Key counts
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# - device unused fallback key usage states
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# - device list changes
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msc3202_transaction_extensions = as_info.get("org.matrix.msc3202", False)
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if not isinstance(msc3202_transaction_extensions, bool):
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raise ValueError(
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"The `org.matrix.msc3202` option should be true or false if specified."
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)
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return ApplicationService(
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token=as_info["as_token"],
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url=as_info["url"],
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namespaces=as_info["namespaces"],
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hs_token=as_info["hs_token"],
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sender=user_id,
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id=as_info["id"],
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protocols=protocols,
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rate_limited=rate_limited,
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ip_range_whitelist=ip_range_whitelist,
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supports_ephemeral=supports_ephemeral,
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msc3202_transaction_extensions=msc3202_transaction_extensions,
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)
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