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9b98c5c20a
Added mirroring of spans into Sentry Tracer is a facade that redirects actions to tracing backends
68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
"""
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CherryPy tool that uses the tracer to start a span for each request.
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"""
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import socket
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from typing import Dict
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import cherrypy
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from tracing.tracer import get_tracer
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def _on_request_start() -> None:
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req = cherrypy.request
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tracer = get_tracer()
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headers: Dict[str, str] = dict(req.headers or {})
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tracer.notify_incoming_request(
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headers=headers,
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method=getattr(req, 'method', ''),
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path=getattr(req, 'path_info', '')
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)
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trace_id, parent_span_id = tracer.extract_traceparent(headers)
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tracer.set_incoming_context(trace_id, parent_span_id)
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span_name = f"{getattr(req, 'method', 'HTTP')} {getattr(req, 'path_info', '/')}"
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ctx = tracer.start_as_current_span(span_name, kind="SERVER")
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span = ctx.__enter__()
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span.set_attribute('http.method', getattr(req, 'method', ''))
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span.set_attribute('http.path', getattr(req, 'path_info', ''))
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span.set_attribute('client.ip', getattr(getattr(req, 'remote', None), 'ip', ''))
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span.set_attribute('instance.hostname', socket.gethostname())
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safe_headers = {k: v for k, v in headers.items() if k.lower() not in {'authorization', 'x-api-key'}}
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span.set_attribute('sentry.incoming_headers', safe_headers)
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req._trace_span_ctx = ctx
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req._trace_span = span
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tracer.inject_traceparent(cherrypy.response.headers) # type: ignore[arg-type]
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def _on_request_end() -> None:
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req = cherrypy.request
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try:
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status_str = str(cherrypy.response.status)
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status_code = int(status_str.split()[0])
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except Exception:
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status_code = None
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tracer = get_tracer()
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tracer.notify_request_finished(status_code)
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span = getattr(req, "_trace_span", None)
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if span is not None and status_code is not None:
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span.set_attribute('http.status_code', status_code)
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ctx = getattr(req, "_trace_span_ctx", None)
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if ctx is not None:
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try:
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ctx.__exit__(None, None, None)
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finally:
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req._trace_span_ctx = None
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req._trace_span = None
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def register_tracing_tools() -> None:
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cherrypy.tools.trace = cherrypy.Tool("on_start_resource", _on_request_start, priority=10)
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cherrypy.tools.trace_end = cherrypy.Tool("on_end_resource", _on_request_end, priority=80)
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