Class: TingYun::BrowserMonitoring
Constant Summary
collapse
- CONTENT_TYPE =
'Content-Type'.freeze
- TEXT_HTML =
'text/html'.freeze
- CONTENT_DISPOSITION =
'Content-Disposition'.freeze
- ATTACHMENT =
'attachment'.freeze
- SCAN_LIMIT =
64_000
- TITLE_END =
'</title>'.freeze
- TITLE_END_CAPITAL =
'</TITLE>'.freeze
- HEAD_END =
'<head>'.freeze
- HEAD_END_CAPITAL =
'<HEAD>'.freeze
- GT =
'>'.freeze
- ALREADY_INSTRUMENTED_KEY =
"tingyun.browser_monitoring_already_instrumented"
Instrumentation::MiddlewareTracing::TXN_STARTED_KEY
Instance Attribute Summary
#category, #target, #transaction_options
Instance Method Summary
collapse
event_params, float, int, int_or_nil, log_failure, string, url_encode
#build_transaction_name, #initialize
#_nr_has_middleware_tracing, #build_transaction_options, #call, #capture_http_response_code, #capture_response_content_type, #events, #merge_first_middleware_options, #note_transaction_started, #sinatra_static?
Instance Method Details
#auto_instrument_source(response, js_to_inject) ⇒ Object
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 106
def auto_instrument_source(response, js_to_inject)
source = gather_source(response)
close_old_response(response)
return nil unless source
beginning_of_source = source[0..SCAN_LIMIT]
insertion_index = find_tag_end(beginning_of_source)
if insertion_index
source = source[0...insertion_index] <<
js_to_inject <<
source[insertion_index..-1]
else
TingYun::Agent.logger.debug "Skipping RUM instrumentation. Could not properly determine location to inject script."
end
source
rescue => e
TingYun::Agent.logger.debug "Skipping RUM instrumentation on exception.", e
nil
end
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#browser_timing_config(state) ⇒ Object
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 92
def browser_timing_config(state)
timings = state.timings
data = {
:id => TingYun::Agent.config[:tingyunIdSecret],
:n => state.transaction_name ,
:a => timings.app_time_in_millis,
:q => timings.queue_time_in_millis,
:tid => state.trace_id
}
data
end
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#close_old_response(response) ⇒ Object
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 134
def close_old_response(response)
if response.respond_to?(:close)
response.close
end
end
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#find_tag_end(beginning_of_source) ⇒ Object
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 140
def find_tag_end(beginning_of_source)
tag_end = beginning_of_source.index(TITLE_END) ||
beginning_of_source.index(HEAD_END) ||
beginning_of_source.index(TITLE_END_CAPITAL) ||
beginning_of_source.index(HEAD_END_CAPITAL)
beginning_of_source.index(GT, tag_end) + 1 if tag_end
end
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#gather_source(response) ⇒ Object
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 128
def gather_source(response)
source = nil
response.each {|fragment| source ? (source << fragment.to_s) : (source = fragment.to_s)}
source
end
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#is_ajax?(env) ⇒ Boolean
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 75
def is_ajax?(env)
env["HTTP_X_REQUESTED_WITH"].nil?
end
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#is_attachment?(headers) ⇒ Boolean
#is_html?(headers) ⇒ Boolean
#manufacture_cookie ⇒ Object
#rum_enable? ⇒ Boolean
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 83
def rum_enable?
TingYun::Agent.config[:'nbs.rum.enabled']
end
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#should_instrument?(env, status, headers) ⇒ Boolean
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 63
def should_instrument?(env, status, )
status == 200 &&
is_ajax?(env) &&
!env[ALREADY_INSTRUMENTED_KEY] &&
is_html?() &&
!is_attachment?()
end
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#traced_call(env) ⇒ Object
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# File 'lib/ting_yun/middleware/browser_monitoring.rb', line 28
def traced_call(env)
result = @app.call(env)
if should_instrument?(env, result[0], result[1])
if rum_enable? if TingYun::Agent.config[:'nbs.rum.mix_enabled']
result[1]["Set-Cookie"] = "TINGYUN_DATA=#{manufacture_cookie}"
env[ALREADY_INSTRUMENTED_KEY] = true
result
else
js_to_inject = TingYun::Instrumentation::Support::JavascriptInstrument.
if (js_to_inject != '')
response_string = auto_instrument_source(result[2], js_to_inject)
env[ALREADY_INSTRUMENTED_KEY] = true
if response_string
response = Rack::Response.new(response_string, result[0], result[1])
response.finish
else
result
end
else
result
end
end
else
result
end
else
result
end
end
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