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try:
import urllib.parse as urllib_parse
from base64 import encodebytes
except ImportError:
import urllib as urllib_parse
from base64 import encodestring as encodebytes
class Auth(object):
"""
ABC for Authenticator objects.
"""
def encode_params(self, base_url, method, params):
"""Encodes parameters for a request suitable for including in a URL
or POST body. This method may also add new params to the request
if required by the authentication scheme in use."""
raise NotImplementedError()
def generate_headers(self):
"""Generates headers which should be added to the request if required
by the authentication scheme in use."""
raise NotImplementedError()
class UserPassAuth(Auth):
"""
Basic auth authentication using email/username and
password. Deprecated.
"""
def __init__(self, username, password):
self.username = username
self.password = password
def encode_params(self, base_url, method, params):
# We could consider automatically converting unicode to utf8 strings
# before encoding...
return urllib_parse.urlencode(params)
def generate_headers(self):
return {b"Authorization": b"Basic " + encodebytes(
("%s:%s" %(self.username, self.password))
.encode('utf8')).strip(b'\n')
}
class NoAuth(Auth):
"""
No authentication authenticator.
"""
def __init__(self):
pass
def encode_params(self, base_url, method, params):
return urllib_parse.urlencode(params)
def generate_headers(self):
return {}