Implement Revolut refresh token retrieval

This commit is contained in:
Mark Veidemanis 2021-12-24 17:26:54 +00:00
parent ff91b0ac81
commit 9ba5721872
Signed by: m
GPG Key ID: 5ACFCEED46C0904F
1 changed files with 56 additions and 4 deletions

View File

@ -5,6 +5,9 @@ from twisted.logger import Logger
from json import dumps
from json.decoder import JSONDecodeError
import requests
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.backends import default_backend
import jwt
# Project imports
from settings import settings
@ -15,9 +18,59 @@ class Revolut(object):
Class to handle Revolut API calls.
"""
def __init__(self):
def __init__(self, irc):
self.log = Logger("revolut")
self.token = None
self.irc = irc
def setup_auth(self):
self.create_new_jwt()
self.get_access_token()
def create_new_jwt(self):
payload = {
"iss": settings.Revolut.Domain,
"sub": settings.Revolut.ClientID,
"aud": "https://revolut.com",
"exp": int(settings.Revolut.Expiry),
}
with open(settings.Revolut.PrivateKey, "rb") as f:
pem_bytes = f.read()
# payload = {jwt_header, jwt_body}
private_key = serialization.load_pem_private_key(pem_bytes, password=None, backend=default_backend())
encoded = jwt.encode(payload, private_key, algorithm="RS256")
settings.Revolut.JWT = encoded
settings.write()
def get_access_token(self):
headers = {"Content-Type": "application/x-www-form-urlencoded"}
data = {
"grant_type": "authorization_code",
"code": settings.Revolut.AuthCode,
"client_id": settings.Revolut.ClientID,
"client_assertion_type": "urn:ietf:params:oauth:client-assertion-type:jwt-bearer",
"client_assertion": settings.Revolut.JWT,
}
r = requests.post(f"{settings.Revolut.Base}/auth/token", data=data, headers=headers)
try:
parsed = r.json()
except JSONDecodeError:
return False
if r.status_code == 200:
try:
settings.Revolut.RefreshToken = parsed["refresh_token"]
settings.Revolut.SetupToken = "0"
settings.write()
self.log.info("Refreshed refresh token: {refresh_token}", refresh_token=settings.Revolut.RefreshToken)
self.token = parsed["access_token"]
self.log.info("Refreshed access token: {access_token}", access_token=self.token)
except KeyError:
self.log.error(f"Token authorization didn't contain refresh or access token: {parsed}", parsed=parsed)
return False
else:
self.log.error(f"Cannot refresh token: {parsed}", parsed=parsed)
return False
def get_new_token(self):
headers = {"Content-Type": "application/x-www-form-urlencoded"}
@ -36,9 +89,8 @@ class Revolut(object):
if r.status_code == 200:
if "access_token" in parsed.keys():
self.token = parsed["access_token"]
if len(self.token) == len(settings.Revolut.RefreshToken):
self.log.info("Refreshed access token: {access_token}", access_token=self.token)
return True
self.log.info("Refreshed access token: {access_token}", access_token=self.token)
return True
else:
self.log.error(f"Token refresh didn't contain access token: {parsed}", parsed=parsed)
return False