55 lines
1.2 KiB
Ruby
55 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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require 'ruby-prof'
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module Gitlab
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module RequestProfiler
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class Middleware
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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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if profile?(env)
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call_with_profiling(env)
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else
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@app.call(env)
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end
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end
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def profile?(env)
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header_token = env['HTTP_X_PROFILE_TOKEN']
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return unless header_token.present?
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profile_token = Gitlab::RequestProfiler.profile_token
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return unless profile_token.present?
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header_token == profile_token
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end
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def call_with_profiling(env)
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ret = nil
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result = RubyProf::Profile.profile do
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ret = catch(:warden) do
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@app.call(env)
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end
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end
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printer = RubyProf::CallStackPrinter.new(result)
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file_name = "#{env['PATH_INFO'].tr('/', '|')}_#{Time.current.to_i}.html"
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file_path = "#{PROFILES_DIR}/#{file_name}"
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FileUtils.mkdir_p(PROFILES_DIR)
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File.open(file_path, 'wb') do |file|
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printer.print(file)
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end
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if ret.is_a?(Array)
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ret
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else
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throw(:warden, ret)
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end
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end
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end
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end
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end
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