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[enh] Add Server-Timing header (#1637)

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Server Timing specification: https://www.w3.org/TR/server-timing/

In the browser Dev Tools, focus on the main request, there are the responses per engine in the Timing tab.
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Alexandre Flament 2019-07-17 10:38:45 +02:00 • committed by GitHub
parent cfcbc3a5c3
commit 554a21e1d0
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4 changed files with 70 additions and 15 deletions
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21
searx/webapp.py
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@ -43,6 +43,7 @@ except:
exit(1)
from cgi import escape
from datetime import datetime, timedelta
from time import time
from werkzeug.contrib.fixers import ProxyFix
from flask import (
Flask, request, render_template, url_for, Response, make_response,
@ -402,6 +403,8 @@ def render(template_name, override_theme=None, **kwargs):
@app.before_request
def pre_request():
request.start_time = time()
request.timings = []
request.errors = []
preferences = Preferences(themes, list(categories.keys()), engines, plugins)
@ -437,6 +440,21 @@ def pre_request():
request.user_plugins.append(plugin)
@app.after_request
def post_request(response):
total_time = time() - request.start_time
timings_all = ['total;dur=' + str(round(total_time * 1000, 3))]
if len(request.timings) > 0:
timings = sorted(request.timings, key=lambda v: v['total'])
timings_total = ['total_' + str(i) + '_' + v['engine'] +
';dur=' + str(round(v['total'] * 1000, 3)) for i, v in enumerate(timings)]
timings_load = ['load_' + str(i) + '_' + v['engine'] +
';dur=' + str(round(v['load'] * 1000, 3)) for i, v in enumerate(timings)]
timings_all = timings_all + timings_total + timings_load
response.headers.add('Server-Timing', ', '.join(timings_all))
return response
def index_error(output_format, error_message):
if output_format == 'json':
return Response(json.dumps({'error': error_message}),
@ -515,6 +533,9 @@ def index():
# UI
advanced_search = request.form.get('advanced_search', None)
# Server-Timing header
request.timings = result_container.get_timings()
# output
for result in results:
if output_format == 'html':