114 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			114 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Python
		
	
	
| # 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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| 
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| import attr
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| 
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| from synapse.util.check_dependencies import DependencyException, check_requirements
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| 
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| from ._base import Config, ConfigError
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| 
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| 
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| @attr.s
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| class MetricsFlags:
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|     known_servers: bool = attr.ib(
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|         default=False, validator=attr.validators.instance_of(bool)
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|     )
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| 
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|     @classmethod
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|     def all_off(cls) -> "MetricsFlags":
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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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| 
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| 
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| class MetricsConfig(Config):
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|     section = "metrics"
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| 
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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.report_stats_endpoint = config.get(
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|             "report_stats_endpoint", "https://matrix.org/report-usage-stats/push"
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|         )
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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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| 
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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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| 
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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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|                 check_requirements("sentry")
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|             except DependencyException as e:
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|                 raise ConfigError(
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|                     e.message  # noqa: B306, DependencyException.message is a property
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|                 )
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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 gauge 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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| 
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|         # Whether or not to report anonymized homeserver usage statistics.
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|         #
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|         """
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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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| 
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|         res += """
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|         # The endpoint to report the anonymized homeserver usage statistics to.
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|         # Defaults to https://matrix.org/report-usage-stats/push
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|         #
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|         #report_stats_endpoint: https://example.com/report-usage-stats/push
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|         """
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|         return res
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