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import os
from bs4 import BeautifulSoup
from django.http import HttpResponse
from django.conf import settings
from google.cloud import translate_v2 as translate
cred_path = os.path.join(settings.BASE_DIR, 'credentials-translate.json')
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = cred_path
class TranslationMiddleware:
def __init__(self, get_response):
self.get_response = get_response
self.CACHE_TTL = 60 * 60
def __call__(self, request):
response = self.get_response(request)
lang_cookie = request.COOKIES.get('lang', '')
if lang_cookie != 'ja':
return response
content_type = response.get('Content-Type', '').lower()
if 'text' not in content_type:
return response
HTML_content =response.content.decode('utf-8')
# add no translate class to the 'highlight' class
soup = BeautifulSoup(HTML_content, 'html.parser')
for tag in soup.find_all(class_='highlight'):
tag['class'].append('notranslate')
HTML_content = str(soup)
HTML_content = HTML_content.replace(
"That Computer Scientist",
"ザットコンピュータサイエンティスト"
)
translate_client = translate.Client()
target_language = 'ja'
translated_content = translate_client.translate(
HTML_content,
target_language=target_language,
)['translatedText']
return HttpResponse(translated_content)
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