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Improve Accept-Language header parsing

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This commit is contained in:
Jimmy 2019-05-26 02:24:12 +00:00
parent 29dea0382d
commit 5cee313096
1 changed files with 18 additions and 10 deletions
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28
lib/wttr_srv.py
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@ -78,24 +78,32 @@ def get_answer_language(request):
try: try:
if language.split(";")[0] == language: if language.split(";")[0] == language:
# no q => q = 1 # no q => q = 1
locale_q_pairs.append((language.strip(), "1")) locale_q_pairs.append((language.strip(), 1))
else: else:
locale = language.split(";")[0].strip() locale = language.split(";")[0].strip()
weight = language.split(";")[1].split("=")[1] weight = float(language.split(";")[1].split("=")[1])
locale_q_pairs.append((locale, weight)) locale_q_pairs.append((locale, weight))
except IndexError: except (IndexError, ValueError):
pass pass
return locale_q_pairs return locale_q_pairs
def _find_supported_language(accepted_languages): def _find_supported_language(accepted_languages):
for lang_tuple in accepted_languages: def supported_langs():
lang = lang_tuple[0] """Yields all pairs in the Accept-Language header
if '-' in lang: supported in SUPPORTED_LANGS or None if 'en' is the preferred"""
lang = lang.split('-', 1)[0] for lang_tuple in accepted_languages:
if lang in SUPPORTED_LANGS: lang = lang_tuple[0]
return lang if '-' in lang:
return None lang = lang.split('-', 1)[0]
if lang in SUPPORTED_LANGS:
yield lang, lang_tuple[1]
elif lang == 'en':
yield None, lang_tuple[1]
try:
return max(supported_langs(), key=lambda lang_tuple:lang_tuple[1])[0]
except ValueError:
return None
lang = None lang = None
hostname = request.headers['Host'] hostname = request.headers['Host']