mirror of
https://github.com/searxng/searxng.git
synced 2024-11-27 13:21:04 +00:00
Adam Tauber
GitHub
commit
ceb8ae6439
3 changed files with 154 additions and 131 deletions
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@ -90,6 +90,9 @@ def load_engine(engine_data):
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'result_count': 0,
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'search_count': 0,
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'page_load_time': 0,
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'page_load_count': 0,
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'engine_time': 0,
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'engine_time_count': 0,
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'score_count': 0,
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'errors': 0
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}
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@ -106,32 +109,56 @@ def load_engine(engine_data):
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return engine
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def to_percentage(stats, maxvalue):
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for engine_stat in stats:
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if maxvalue:
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engine_stat['percentage'] = int(engine_stat['avg'] / maxvalue * 100)
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else:
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engine_stat['percentage'] = 0
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return stats
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def get_engines_stats():
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# TODO refactor
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pageloads = []
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engine_times = []
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results = []
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scores = []
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errors = []
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scores_per_result = []
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max_pageload = max_results = max_score = max_errors = max_score_per_result = 0 # noqa
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max_pageload = max_engine_times = max_results = max_score = max_errors = max_score_per_result = 0 # noqa
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for engine in engines.values():
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if engine.stats['search_count'] == 0:
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continue
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results_num = \
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engine.stats['result_count'] / float(engine.stats['search_count'])
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load_times = engine.stats['page_load_time'] / float(engine.stats['search_count']) # noqa
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if engine.stats['page_load_count'] != 0:
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load_times = engine.stats['page_load_time'] / float(engine.stats['page_load_count']) # noqa
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else:
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load_times = 0
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if engine.stats['engine_time_count'] != 0:
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this_engine_time = engine.stats['engine_time'] / float(engine.stats['engine_time_count']) # noqa
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else:
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this_engine_time = 0
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if results_num:
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score = engine.stats['score_count'] / float(engine.stats['search_count']) # noqa
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score_per_result = score / results_num
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else:
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score = score_per_result = 0.0
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max_results = max(results_num, max_results)
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max_pageload = max(load_times, max_pageload)
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max_engine_times = max(this_engine_time, max_engine_times)
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max_results = max(results_num, max_results)
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max_score = max(score, max_score)
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max_score_per_result = max(score_per_result, max_score_per_result)
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max_errors = max(max_errors, engine.stats['errors'])
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pageloads.append({'avg': load_times, 'name': engine.name})
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engine_times.append({'avg': this_engine_time, 'name': engine.name})
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results.append({'avg': results_num, 'name': engine.name})
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scores.append({'avg': score, 'name': engine.name})
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errors.append({'avg': engine.stats['errors'], 'name': engine.name})
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@ -140,38 +167,18 @@ def get_engines_stats():
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'name': engine.name
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})
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for engine in pageloads:
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if max_pageload:
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engine['percentage'] = int(engine['avg'] / max_pageload * 100)
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else:
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engine['percentage'] = 0
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for engine in results:
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if max_results:
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engine['percentage'] = int(engine['avg'] / max_results * 100)
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else:
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engine['percentage'] = 0
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for engine in scores:
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if max_score:
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engine['percentage'] = int(engine['avg'] / max_score * 100)
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else:
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engine['percentage'] = 0
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for engine in scores_per_result:
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if max_score_per_result:
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engine['percentage'] = int(engine['avg']
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/ max_score_per_result * 100)
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else:
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engine['percentage'] = 0
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for engine in errors:
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if max_errors:
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engine['percentage'] = int(float(engine['avg']) / max_errors * 100)
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else:
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engine['percentage'] = 0
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pageloads = to_percentage(pageloads, max_pageload)
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engine_times = to_percentage(engine_times, max_engine_times)
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results = to_percentage(results, max_results)
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scores = to_percentage(scores, max_score)
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scores_per_result = to_percentage(scores_per_result, max_score_per_result)
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erros = to_percentage(errors, max_errors)
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return [
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(
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gettext('Engine time (sec)'),
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sorted(engine_times, key=itemgetter('avg'))
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),
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(
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gettext('Page loads (sec)'),
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sorted(pageloads, key=itemgetter('avg'))
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210
searx/search.py
210
searx/search.py
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@ -36,14 +36,53 @@ logger = logger.getChild('search')
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number_of_searches = 0
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def search_request_wrapper(fn, url, engine_name, **kwargs):
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ret = None
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engine = engines[engine_name]
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def send_http_request(engine, request_params, timeout_limit):
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response = None
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try:
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ret = fn(url, **kwargs)
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# create dictionary which contain all
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# informations about the request
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request_args = dict(
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headers=request_params['headers'],
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cookies=request_params['cookies'],
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timeout=timeout_limit,
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verify=request_params['verify']
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)
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# specific type of request (GET or POST)
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if request_params['method'] == 'GET':
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req = requests_lib.get
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else:
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req = requests_lib.post
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request_args['data'] = request_params['data']
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# for page_load_time stats
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time_before_request = time()
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# send the request
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response = req(request_params['url'], **request_args)
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with threading.RLock():
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# no error : reset the suspend variables
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engine.continuous_errors = 0
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engine.suspend_end_time = 0
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# update stats with current page-load-time
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# only the HTTP request
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engine.stats['page_load_time'] += time() - time_before_request
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engine.stats['page_load_count'] += 1
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# is there a timeout (no parsing in this case)
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timeout_overhead = 0.2 # seconds
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search_duration = time() - request_params['started']
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if search_duration > timeout_limit + timeout_overhead:
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logger.exception('engine timeout on HTTP request:'
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'{0} (search duration : {1} ms, time-out: {2} )'
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.format(engine.name, search_duration, timeout_limit))
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with threading.RLock():
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engine.stats['errors'] += 1
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return False
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# everything is ok : return the response
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return response
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except:
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# increase errors stats
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with threading.RLock():
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@ -52,20 +91,62 @@ def search_request_wrapper(fn, url, engine_name, **kwargs):
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engine.suspend_end_time = time() + min(60, engine.continuous_errors)
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# print engine name and specific error message
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logger.exception('engine crash: {0}'.format(engine_name))
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return ret
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logger.exception('engine crash: {0}'.format(engine.name))
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return False
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def threaded_requests(requests):
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timeout_limit = max(r[2]['timeout'] for r in requests)
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search_start = time()
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def search_one_request(engine_name, query, request_params, result_container, timeout_limit):
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engine = engines[engine_name]
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# update request parameters dependent on
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# search-engine (contained in engines folder)
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engine.request(query, request_params)
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# TODO add support of offline engines
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if request_params['url'] is None:
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return False
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# ignoring empty urls
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if not request_params['url']:
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return False
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# send request
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response = send_http_request(engine, request_params, timeout_limit)
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# parse response
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success = None
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if response:
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# parse the response
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response.search_params = request_params
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search_results = engine.response(response)
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# add results
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for result in search_results:
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result['engine'] = engine.name
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result_container.extend(engine.name, search_results)
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success = True
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else:
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success = False
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with threading.RLock():
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# update stats : total time
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engine.stats['engine_time'] += time() - request_params['started']
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engine.stats['engine_time_count'] += 1
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#
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return success
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def search_multiple_requests(requests, result_container, timeout_limit):
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start_time = time()
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search_id = uuid4().__str__()
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for fn, url, request_args, engine_name in requests:
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request_args['timeout'] = timeout_limit
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for engine_name, query, request_params in requests:
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th = threading.Thread(
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target=search_request_wrapper,
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args=(fn, url, engine_name),
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kwargs=request_args,
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target=search_one_request,
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args=(engine_name, query, request_params, result_container, timeout_limit),
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name=search_id,
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)
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th._engine_name = engine_name
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@ -73,7 +154,7 @@ def threaded_requests(requests):
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for th in threading.enumerate():
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if th.name == search_id:
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remaining_time = max(0.0, timeout_limit - (time() - search_start))
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remaining_time = max(0.0, timeout_limit - (time() - start_time))
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th.join(remaining_time)
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if th.isAlive():
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logger.warning('engine timeout: {0}'.format(th._engine_name))
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@ -91,44 +172,6 @@ def default_request_params():
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}
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# create a callback wrapper for the search engine results
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def make_callback(engine_name, callback, params, result_container):
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# creating a callback wrapper for the search engine results
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def process_callback(response, **kwargs):
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# check if redirect comparing to the True value,
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# because resp can be a Mock object, and any attribut name returns something.
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if response.is_redirect is True:
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logger.debug('{0} redirect on: {1}'.format(engine_name, response))
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return
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response.search_params = params
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search_duration = time() - params['started']
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# update stats with current page-load-time
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with threading.RLock():
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engines[engine_name].stats['page_load_time'] += search_duration
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timeout_overhead = 0.2 # seconds
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timeout_limit = engines[engine_name].timeout + timeout_overhead
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if search_duration > timeout_limit:
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with threading.RLock():
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engines[engine_name].stats['errors'] += 1
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return
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# callback
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search_results = callback(response)
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# add results
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for result in search_results:
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result['engine'] = engine_name
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result_container.extend(engine_name, search_results)
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return process_callback
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def get_search_query_from_webapp(preferences, form):
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query = None
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query_engines = []
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@ -255,6 +298,10 @@ class Search(object):
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def search(self):
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global number_of_searches
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# start time
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start_time = time()
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# answeres ?
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answerers_results = ask(self.search_query)
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if answerers_results:
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@ -274,6 +321,9 @@ class Search(object):
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search_query = self.search_query
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# max of all selected engine timeout
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timeout_limit = 0
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# start search-reqest for all selected engines
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for selected_engine in search_query.engines:
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if selected_engine['name'] not in engines:
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@ -303,7 +353,7 @@ class Search(object):
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request_params = default_request_params()
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request_params['headers']['User-Agent'] = user_agent
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request_params['category'] = selected_engine['category']
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request_params['started'] = time()
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request_params['started'] = start_time
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request_params['pageno'] = search_query.pageno
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if hasattr(engine, 'language') and engine.language:
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@ -315,52 +365,16 @@ class Search(object):
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request_params['safesearch'] = search_query.safesearch
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request_params['time_range'] = search_query.time_range
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# update request parameters dependent on
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# search-engine (contained in engines folder)
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engine.request(search_query.query.encode('utf-8'), request_params)
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if request_params['url'] is None:
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# TODO add support of offline engines
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pass
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# create a callback wrapper for the search engine results
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callback = make_callback(
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selected_engine['name'],
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engine.response,
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request_params,
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self.result_container)
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# create dictionary which contain all
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# informations about the request
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request_args = dict(
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headers=request_params['headers'],
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hooks=dict(response=callback),
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cookies=request_params['cookies'],
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timeout=engine.timeout,
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verify=request_params['verify']
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)
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# specific type of request (GET or POST)
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if request_params['method'] == 'GET':
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req = requests_lib.get
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else:
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req = requests_lib.post
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request_args['data'] = request_params['data']
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# ignoring empty urls
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if not request_params['url']:
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continue
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# append request to list
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requests.append((req, request_params['url'],
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request_args,
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selected_engine['name']))
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requests.append((selected_engine['name'], search_query.query.encode('utf-8'), request_params))
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if not requests:
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return self.result_container
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# send all search-request
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threaded_requests(requests)
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start_new_thread(gc.collect, tuple())
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# update timeout_limit
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timeout_limit = max(timeout_limit, engine.timeout)
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if requests:
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# send all search-request
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search_multiple_requests(requests, self.result_container, timeout_limit - (time() - start_time))
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start_new_thread(gc.collect, tuple())
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# return results, suggestions, answers and infoboxes
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return self.result_container
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@ -601,6 +601,8 @@ def preferences():
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if e.timeout > settings['outgoing']['request_timeout']:
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stats[e.name]['warn_timeout'] = True
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# get first element [0], the engine time,
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# and then the second element [1] : the time (the first one is the label)
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for engine_stat in get_engines_stats()[0][1]:
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stats[engine_stat.get('name')]['time'] = round(engine_stat.get('avg'), 3)
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if engine_stat.get('avg') > settings['outgoing']['request_timeout']:
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