58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
"""
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This rater evaluates the number of network requests made.
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Currently no score is given. The plan is however to reward site that
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use only few requests.
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The rater uses Chrome performance log messages of type
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'Network.requestWillBeSent'.
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"""
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from rating.abstract_rater import AbstractRater
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class Rater(AbstractRater):
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rating_type = 'number'
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default_value = 0
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depends_on_checks = ['load_in_browser']
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max_score = 1.0
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def __init__(self, check_results):
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super().__init__(check_results)
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def rate(self):
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value = self.default_value
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score = 0
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num_requests_for_urls = []
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for url in self.check_results['load_in_browser']:
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num_requests = 0
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if (self.check_results['load_in_browser'][url]['performance_log'] == [] or
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self.check_results['load_in_browser'][url]['performance_log'] is None):
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continue
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for lentry in self.check_results['load_in_browser'][url]['performance_log']:
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if lentry['message']['method'] == 'Network.requestWillBeSent':
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num_requests += 1
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num_requests_for_urls.append(num_requests)
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# Calculate score based on the largest value found for a URL.
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# See https://github.com/netzbegruenung/green-spider/issues/11#issuecomment-600307544
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# for details.
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if len(num_requests_for_urls) > 0:
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value = max(num_requests_for_urls)
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if value <= 28:
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score = 1.0
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elif value <= 38:
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score = 0.5
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return {
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'type': self.rating_type,
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'value': value,
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'score': score,
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'max_score': self.max_score,
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}
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