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# Copyright 2019 The Matrix.org Foundation C.I.C.d
#
# 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.
from typing import Any, List, Set
from synapse.types import JsonDict
from synapse.util.check_dependencies import check_requirements
from ._base import Config, ConfigError
class TracerConfig(Config):
section = "tracing"
def read_config(self, config: JsonDict, **kwargs: Any) -> None:
opentracing_config = config.get("opentracing")
if opentracing_config is None:
opentracing_config = {}
self.opentracer_enabled = opentracing_config.get("enabled", False)
self.jaeger_config = opentracing_config.get(
"jaeger_config",
{"sampler": {"type": "const", "param": 1}, "logging": False},
)
self.force_tracing_for_users: Set[str] = set()
if not self.opentracer_enabled:
return
check_requirements("opentracing")
# The tracer is enabled so sanitize the config
self.opentracer_whitelist: List[str] = opentracing_config.get(
"homeserver_whitelist", []
)
if not isinstance(self.opentracer_whitelist, list):
raise ConfigError("Tracer homeserver_whitelist config is malformed")
force_tracing_for_users = opentracing_config.get("force_tracing_for_users", [])
if not isinstance(force_tracing_for_users, list):
raise ConfigError(
"Expected a list", ("opentracing", "force_tracing_for_users")
)
for i, u in enumerate(force_tracing_for_users):
if not isinstance(u, str):
raise ConfigError(
"Expected a string",
("opentracing", "force_tracing_for_users", f"index {i}"),
)
self.force_tracing_for_users.add(u)
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