58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
|
"""
|
||
|
|
This rater evaluates the amount of data transferred for a page load.
|
||
|
|
|
||
|
|
Currently no score is given. The plan is however to reward site that
|
||
|
|
cause smaller transfers.
|
||
|
|
|
||
|
|
The rater uses Chrome performance log messages of type
|
||
|
|
'Network.loadingFinished'.
|
||
|
|
"""
|
||
|
|
|
||
|
|
from rating.abstract_rater import AbstractRater
|
||
|
|
|
||
|
|
class Rater(AbstractRater):
|
||
|
|
|
||
|
|
rating_type = 'number'
|
||
|
|
default_value = 0
|
||
|
|
depends_on_checks = ['load_in_browser']
|
||
|
|
max_score = 1.0
|
||
|
|
|
||
|
|
def __init__(self, check_results):
|
||
|
|
super().__init__(check_results)
|
||
|
|
|
||
|
|
def rate(self):
|
||
|
|
value = self.default_value
|
||
|
|
score = 0
|
||
|
|
|
||
|
|
payloads_for_urls = []
|
||
|
|
|
||
|
|
for url in self.check_results['load_in_browser']:
|
||
|
|
payload = 0
|
||
|
|
|
||
|
|
if (self.check_results['load_in_browser'][url]['performance_log'] == [] or
|
||
|
|
self.check_results['load_in_browser'][url]['performance_log'] is None):
|
||
|
|
continue
|
||
|
|
|
||
|
|
for lentry in self.check_results['load_in_browser'][url]['performance_log']:
|
||
|
|
if lentry['message']['method'] == 'Network.loadingFinished':
|
||
|
|
payload += lentry['message']['params']['encodedDataLength']
|
||
|
|
|
||
|
|
payloads_for_urls.append(payload)
|
||
|
|
|
||
|
|
# Calculate score based on the largest value found for a URL.
|
||
|
|
# See https://github.com/netzbegruenung/green-spider/issues/11#issuecomment-600307544
|
||
|
|
# for details.
|
||
|
|
if len(payloads_for_urls) > 0:
|
||
|
|
value = max(payloads_for_urls)
|
||
|
|
if value < 994000:
|
||
|
|
score = 1
|
||
|
|
elif value < 1496000:
|
||
|
|
score = .5
|
||
|
|
|
||
|
|
return {
|
||
|
|
'type': self.rating_type,
|
||
|
|
'value': value,
|
||
|
|
'score': score,
|
||
|
|
'max_score': self.max_score,
|
||
|
|
}
|