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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
import json
import webbrowser
from http.server import BaseHTTPRequestHandler, HTTPServer
from urllib.parse import parse_qs, quote as urlquote, urlparse
import requests
class SimpleOAuthAuthenticator(object):
def __init__(self, server_url, client_id, ports):
self.server_url = server_url
self.client_id = client_id
self.ports = ports
def _get_tokens(self, authorization_code=None, refresh_token=None, grant_type="authorization_code"):
data = {
"grant_type": grant_type,
"state": "random_state_string",
"client_id": self.client_id,
"scopes": "read write",
}
if hasattr(self, 'redirect_uri'):
data["redirect_uri"] = self.redirect_uri
if authorization_code:
data['code'] = authorization_code
if refresh_token:
data['refresh_token'] = refresh_token
response = requests.post(
'%s/o/token/' % self.server_url,
data=data
)
if response.status_code != 200:
print("error retrieving refresh tokens %s" % response.status_code)
print(response.content)
return None, None, None
response_json = json.loads(response.content)
refresh_token = response_json ['refresh_token']
access_token = response_json ['access_token']
return access_token, refresh_token, response_json
def get_new_token(self, register=True, redirect_url=None):
class HTTPServerHandler(BaseHTTPRequestHandler):
html_template = '<html>%(head)s<h1>%(message)s</h1></html>'
def do_GET(self):
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
if 'code' in self.path:
self.auth_code = self.path.split('=')[1]
# Display to the user that they no longer need the browser window
if redirect_url:
redirect_string = (
'<head><meta http-equiv="refresh" content="0;url=%(redirect_url)s"></head>'
'<script> window.location.href="%(redirect_url)s"; </script>' % {'redirect_url': redirect_url}
)
else:
redirect_string = ""
self.wfile.write(bytes(self.html_template % {'head': redirect_string, 'message': 'You may now close this window.'}, 'utf-8'))
qs = parse_qs(urlparse(self.path).query)
self.server.authorization_code = qs['code'][0]
else:
self.wfile.write(bytes(self.html_template % {'head': '', 'message': 'Authorization failed.'}, 'utf-8'))
for port in self.ports:
try:
httpServer = HTTPServer(('localhost', port), HTTPServerHandler)
except OSError:
continue
break
self.redirect_uri = "http://localhost:%s/consumer/exchange/" % port
authorize_url = (
"/o/authorize?client_id=%s&state=random_state_string&response_type=code&"
"redirect_uri=%s" % (self.client_id, self.redirect_uri)
)
if register:
authorize_url = "%s/accounts/register/?next=%s" % (self.server_url, urlquote(authorize_url))
else:
authorize_url = "%s%s" % (self.server_url, authorize_url)
webbrowser.open_new(authorize_url)
httpServer.handle_request()
authorization_code = httpServer.authorization_code
return self._get_tokens(authorization_code=authorization_code)
def get_refreshed_token(self, refresh_token):
return self._get_tokens(refresh_token=refresh_token, grant_type="refresh_token")
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