def generate_feed_token(cls, feed_pk, user_pk):
user_secret_key, created_unused = FeedSecretKey.objects.get_or_create(feed_id=feed_pk)
secret_key = user_secret_key.secret_key.encode('utf-8')
checksum = generate_random_from_vschar_set(length=10)
return encrypt_cbc(int_to_base36(int(feed_pk)) + "." + int_to_base36(int(user_pk)) + '.'
+ '.' + checksum,
SOCIAL_SETTINGS.FEED_TOKEN_SECRET_KEY) + '.' + encrypt_cbc(checksum, secret_key)
def _generate_access_token(cls, client_pk, user_pk, scope, expires_in, is_refreshable):
user_secret_key, created_unused = UserClientSecretKey.objects.get_or_create_safe(user_id=user_pk,
client=Client(pk=client_pk))
secret_key = user_secret_key.secret_key.encode('utf-8')
expire = CurrentTimestamp(expires_in)()
checksum = generate_random_from_vschar_set(length=10)
scope_str = cls.scope_to_str(scope)
info = scope_str + "." + int_to_base36(int(is_refreshable))
access_token = int_to_base36(expire) + "." + \
encrypt_cbc(int_to_base36(client_pk) + "." + int_to_base36(user_pk) + '.' + \
int_to_base36(expire) + '.' + info + '.' + checksum, OAUTH2_SETTINGS.ACCESS_TOKEN_SECRET_KEY) \
+ '.' + encrypt_cbc(checksum, secret_key)
if is_refreshable:
refresh_token = encrypt_cbc(checksum + "." + generate_random_from_vschar_set(length=2),
secret_key)
else:
refresh_token = None
ret = OAuth2Credential(access_token=access_token, refresh_token=refresh_token, user_secret_key=secret_key,
expires_in=expires_in)
cls.store_credential(ret, client_pk, user_pk, scope, expire, is_refreshable)
return ret
def generate_code(cls, client, scope, user):
checksum = generate_random_from_vschar_set(length=3)
info = int_to_base36(client.pk) + "." + cls.scope_to_str(scope) + "." + int_to_base36(user.pk) + "." \
+ int_to_base36(CurrentTimestamp(OAUTH2_SETTINGS.CODE_EXPIRATION)()) + '.' + checksum
return encrypt_cbc(info, OAUTH2_SETTINGS.CODE_SECRET_KEY)
