47 lines
1.2 KiB
Ruby
47 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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require 'opentracing'
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module Gitlab
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module Tracing
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class RackMiddleware
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include Common
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REQUEST_METHOD = 'REQUEST_METHOD'
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def initialize(app)
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@app = app
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end
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def call(env)
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method = env[REQUEST_METHOD]
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context = tracer.extract(OpenTracing::FORMAT_RACK, env)
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tags = {
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'component' => 'rack',
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'span.kind' => 'server',
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'http.method' => method,
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'http.url' => self.class.build_sanitized_url_from_env(env)
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}
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in_tracing_span(operation_name: "http:#{method}", child_of: context, tags: tags) do |span|
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@app.call(env).tap do |status_code, _headers, _body|
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span.set_tag('http.status_code', status_code)
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end
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end
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end
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# Generate a sanitized (safe) request URL from the rack environment
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def self.build_sanitized_url_from_env(env)
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request = ActionDispatch::Request.new(env)
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original_url = request.original_url
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uri = URI.parse(original_url)
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uri.query = request.filtered_parameters.to_query if uri.query.present?
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uri.to_s
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end
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end
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end
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end
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