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May 14, 2022 00:12
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Get OAuth 2.0 Refresh Tokens
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async def oauth2_authz_code_grant(scope, client_id, client_secret, auth_uri, token_uri, redirect_port=0, timeout=60): | |
code, redirect_uri = await get_authorization_code(scope, client_id, auth_uri, redirect_port, timeout) | |
return get_token(code, redirect_uri, client_id, client_secret, token_uri) | |
async def get_authorization_code(scope, client_id, auth_uri, port=0, timeout=60): | |
from asyncio import start_server, wait_for, Event, TimeoutError | |
from urllib.parse import urlencode, urlparse, parse_qs | |
event = Event() | |
code: str | |
async def handler(reader, writer): | |
nonlocal code | |
data = await reader.readline() | |
data = data.decode() | |
code = parse_qs(urlparse(data.split()[1]).query)["code"][0] | |
writer.write(b"HTTP/1.1 200 OK\nContent-Length: 0\n\n") | |
await writer.drain() | |
writer.close() | |
await writer.wait_closed() | |
event.set() | |
redirect_uri: str | |
async with await start_server(handler, '0.0.0.0', port) as srv: | |
_, port = srv.sockets[0].getsockname() | |
redirect_uri = f"http://localhost:{port}" | |
params = urlencode({ | |
"client_id": client_id, | |
"scope": scope, | |
"response_type": "code", | |
"redirect_uri": redirect_uri | |
}) | |
print(f"{auth_uri}?{params}") | |
try: | |
await wait_for(event.wait(), timeout=timeout) | |
except TimeoutError: | |
print("timeout") | |
code = None | |
print("server closed") | |
return code, redirect_uri | |
def get_token(code, redirect_uri, client_id, client_secret, token_uri): | |
from urllib.parse import urlencode | |
from urllib.request import urlopen, Request | |
from json import loads | |
params = urlencode({ | |
"client_id": client_id, | |
"client_secret": client_secret, | |
"grant_type": "authorization_code", | |
"code": code, | |
"redirect_uri": redirect_uri | |
}) | |
req = Request(token_uri, params.encode('ascii')) | |
with urlopen(req) as res: | |
return loads(res.read()) |
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