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101 lines
3.5 KiB
Python
101 lines
3.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright 2019 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 attr
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from ._base import Config, ConfigError
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MISSING_SENTRY = """Missing sentry-sdk library. This is required to enable sentry
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integration.
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"""
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@attr.s
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class MetricsFlags(object):
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known_servers = attr.ib(default=False, validator=attr.validators.instance_of(bool))
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@classmethod
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def all_off(cls):
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"""
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Instantiate the flags with all options set to off.
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"""
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return cls(**{x.name: False for x in attr.fields(cls)})
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class MetricsConfig(Config):
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def read_config(self, config, **kwargs):
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self.enable_metrics = config.get("enable_metrics", False)
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self.report_stats = config.get("report_stats", None)
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self.metrics_port = config.get("metrics_port")
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self.metrics_bind_host = config.get("metrics_bind_host", "127.0.0.1")
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if self.enable_metrics:
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_metrics_config = config.get("metrics_flags") or {}
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self.metrics_flags = MetricsFlags(**_metrics_config)
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else:
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self.metrics_flags = MetricsFlags.all_off()
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self.sentry_enabled = "sentry" in config
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if self.sentry_enabled:
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try:
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import sentry_sdk # noqa F401
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except ImportError:
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raise ConfigError(MISSING_SENTRY)
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self.sentry_dsn = config["sentry"].get("dsn")
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if not self.sentry_dsn:
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raise ConfigError(
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"sentry.dsn field is required when sentry integration is enabled"
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)
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def generate_config_section(self, report_stats=None, **kwargs):
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res = """\
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## Metrics ###
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# Enable collection and rendering of performance metrics
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#
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#enable_metrics: False
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# Enable sentry integration
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# NOTE: While attempts are made to ensure that the logs don't contain
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# any sensitive information, this cannot be guaranteed. By enabling
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# this option the sentry server may therefore receive sensitive
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# information, and it in turn may then diseminate sensitive information
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# through insecure notification channels if so configured.
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#
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#sentry:
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# dsn: "..."
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# Flags to enable Prometheus metrics which are not suitable to be
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# enabled by default, either for performance reasons or limited use.
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#
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metrics_flags:
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# Publish synapse_federation_known_servers, a g auge of the number of
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# servers this homeserver knows about, including itself. May cause
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# performance problems on large homeservers.
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#
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#known_servers: true
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# Whether or not to report anonymized homeserver usage statistics.
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"""
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if report_stats is None:
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res += "# report_stats: true|false\n"
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else:
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res += "report_stats: %s\n" % ("true" if report_stats else "false")
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return res
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