lbry-sdk/lbrynet/daemon/auth/client.py

136 lines
4.1 KiB
Python

import os
import json
import aiohttp
import logging
from urllib.parse import urlparse
from lbrynet import conf
from lbrynet.daemon.auth.util import load_api_keys, APIKey, API_KEY_NAME, get_auth_message
log = logging.getLogger(__name__)
USER_AGENT = "AuthServiceProxy/0.1"
TWISTED_SESSION = "TWISTED_SESSION"
LBRY_SECRET = "LBRY_SECRET"
HTTP_TIMEOUT = 30
SCHEME = "http"
class JSONRPCException(Exception):
def __init__(self, rpc_error):
super().__init__()
self.error = rpc_error
class UnAuthAPIClient:
def __init__(self, host, port, session):
self.host = host
self.port = port
self.session = session
self.scheme = SCHEME
def __getattr__(self, method):
async def f(*args, **kwargs):
return await self.call(method, [args, kwargs])
return f
@classmethod
async def from_url(cls, url):
url_fragment = urlparse(url)
host = url_fragment.hostname
port = url_fragment.port
session = aiohttp.ClientSession()
return cls(host, port, session)
async def call(self, method, params=None):
message = {'method': method, 'params': params}
async with self.session.get('{}://{}:{}'.format(self.scheme, self.host, self.port), json=message) as resp:
return await resp.json()
class AuthAPIClient:
def __init__(self, key, session, cookies, url, login_url):
self.session = session
self.__api_key = key
self.__login_url = login_url
self.__id_count = 0
self.__url = url
self.__cookies = cookies
def __getattr__(self, name):
if name.startswith('__') and name.endswith('__'):
raise AttributeError(name)
def f(*args, **kwargs):
return self.call(name, [args, kwargs])
return f
async def call(self, method, params=None):
params = params or {}
self.__id_count += 1
pre_auth_post_data = {
'version': '2',
'method': method,
'params': params,
'id': self.__id_count
}
to_auth = get_auth_message(pre_auth_post_data)
auth_msg = self.__api_key.get_hmac(to_auth).decode()
pre_auth_post_data.update({'hmac': auth_msg})
post_data = json.dumps(pre_auth_post_data)
headers = {
'Host': self.__url.hostname,
'User-Agent': USER_AGENT,
'Content-type': 'application/json'
}
async with self.session.post(self.__login_url, data=post_data, headers=headers) as resp:
if resp is None:
raise JSONRPCException({'code': -342, 'message': 'missing HTTP response from server'})
resp.raise_for_status()
next_secret = resp.headers.get(LBRY_SECRET, False)
if next_secret:
self.__api_key.secret = next_secret
return await resp.json()
@classmethod
async def get_client(cls, key_name=None):
api_key_name = key_name or API_KEY_NAME
pw_path = os.path.join(conf.settings['data_dir'], ".api_keys")
keys = load_api_keys(pw_path)
api_key = keys.get(api_key_name, False)
login_url = "http://{}:{}@{}:{}".format(api_key_name, api_key.secret, conf.settings['api_host'],
conf.settings['api_port'])
url = urlparse(login_url)
headers = {
'Host': url.hostname,
'User-Agent': USER_AGENT,
'Content-type': 'application/json'
}
session = aiohttp.ClientSession()
async with session.post(login_url, headers=headers) as r:
cookies = r.cookies
uid = cookies.get(TWISTED_SESSION).value
api_key = APIKey.new(seed=uid.encode())
return cls(api_key, session, cookies, url, login_url)
class LBRYAPIClient:
@staticmethod
def get_client(conf_path=None):
conf.conf_file = conf_path
if not conf.settings:
conf.initialize_settings()
return AuthAPIClient.get_client() if conf.settings['use_auth_http'] else \
UnAuthAPIClient.from_url(conf.settings.get_api_connection_string())