import os

from wptserve.utils import isomorphic_decode

from tools.wpt.utils import load_source

here = os.path.dirname(isomorphic_decode(__file__))

def main(request, response):
    response.headers.set(b'Access-Control-Allow-Origin', request.headers.get(b"origin"))
    response.headers.set(b'Access-Control-Allow-Credentials', b'true')
    response.headers.set(b'Access-Control-Allow-Methods', b'GET')
    response.headers.set(b'Access-Control-Allow-Headers', b'authorization, x-user, x-pass')
    response.headers.set(b'Access-Control-Expose-Headers', b'x-challenge, xhr-user, ses-user')
    auth = load_source(u"", os.path.abspath(os.path.join(here, os.pardir, u"authentication.py")))
    if request.method == u"OPTIONS":
        return b""
    else:
        return auth.main(request, response)
