|
| 1 | +from aiohttp import ClientSession, web |
| 2 | +from threading import Thread |
| 3 | +from secrets import token_urlsafe |
| 4 | +from hashlib import sha256 |
| 5 | +from base64 import urlsafe_b64encode |
| 6 | +from urllib.parse import urlencode, urlparse |
| 7 | +from dremioai.config import settings |
| 8 | +from datetime import datetime, timedelta |
| 9 | +from importlib.resources import files |
| 10 | +import webbrowser |
| 11 | +import asyncio |
| 12 | + |
| 13 | + |
| 14 | +class OAuth2Redirect: |
| 15 | + def __init__( |
| 16 | + self, client_id, code_verifier, code_challenge, token_url, redirect_port |
| 17 | + ): |
| 18 | + self.client_id = client_id |
| 19 | + self.code_verifier = code_verifier |
| 20 | + self.code_challenge = code_challenge |
| 21 | + self.token_url = token_url |
| 22 | + self.redirect_port = redirect_port |
| 23 | + self.stop = asyncio.Event() |
| 24 | + self.token = {} |
| 25 | + |
| 26 | + async def auth_redirect(self, request: web.Request): |
| 27 | + print(f"auth_redirect: {request}") |
| 28 | + redirect_uri = f"http://localhost:{self.redirect_port}" |
| 29 | + params = { |
| 30 | + "client_id": self.client_id, |
| 31 | + "code_verifier": self.code_verifier, |
| 32 | + "code": request.query["code"], |
| 33 | + "grant_type": "authorization_code", |
| 34 | + "redirect_uri": redirect_uri, |
| 35 | + } |
| 36 | + |
| 37 | + async with ClientSession() as session: |
| 38 | + async with session.post(self.token_url, data=params) as response: |
| 39 | + if response.status != 200: |
| 40 | + print(f"Failed to get token: {await response.text()}") |
| 41 | + else: |
| 42 | + self.token = await response.json() |
| 43 | + self.stop.set() |
| 44 | + auth_html = files("dremioai.resources") / "auth_redirect.html" |
| 45 | + return web.Response(text=auth_html.read_text(), content_type="text/html") |
| 46 | + |
| 47 | + @property |
| 48 | + def access_token(self) -> str: |
| 49 | + return self.token.get("access_token") |
| 50 | + |
| 51 | + @property |
| 52 | + def refresh_token(self) -> str: |
| 53 | + return self.token.get("refresh_token") |
| 54 | + |
| 55 | + @property |
| 56 | + def user(self) -> str: |
| 57 | + return self.token.get("dremio_user_identifier") |
| 58 | + |
| 59 | + @property |
| 60 | + def expiry(self) -> int: |
| 61 | + return self.token.get("expires_in") |
| 62 | + |
| 63 | + async def start_server(self): |
| 64 | + app = web.Application() |
| 65 | + app.router.add_get("/", self.auth_redirect) |
| 66 | + runner = web.AppRunner(app) |
| 67 | + await runner.setup() |
| 68 | + site = web.TCPSite(runner, "localhost", self.redirect_port) |
| 69 | + await site.start() |
| 70 | + await self.stop.wait() |
| 71 | + |
| 72 | + def update_settings(self): |
| 73 | + expiry = datetime.now() + timedelta(seconds=self.expiry - 10) |
| 74 | + settings.instance().dremio.pat = self.access_token |
| 75 | + settings.instance().dremio.oauth2 = settings.OAuth2.model_validate( |
| 76 | + { |
| 77 | + "client_id": self.client_id, |
| 78 | + "refresh_token": self.refresh_token, |
| 79 | + "dremio_user_identifier": self.user, |
| 80 | + "expiry": expiry, |
| 81 | + } |
| 82 | + ) |
| 83 | + settings.write_settings() |
| 84 | + |
| 85 | + |
| 86 | +def run_server(oauth: OAuth2Redirect): |
| 87 | + print("Starting server") |
| 88 | + asyncio.run(oauth.start_server()) |
| 89 | + |
| 90 | + |
| 91 | +def get_pkce_pair(length=96): |
| 92 | + length = max(min(length, 128), 43) |
| 93 | + code_verifier = token_urlsafe(length) |
| 94 | + code_challenge = ( |
| 95 | + urlsafe_b64encode(sha256(code_verifier.encode()).digest()).rstrip(b"=").decode() |
| 96 | + ) |
| 97 | + return code_verifier, code_challenge |
| 98 | + |
| 99 | + |
| 100 | +class OAuth2: |
| 101 | + def __init__(self): |
| 102 | + if settings.instance().dremio.oauth2.client_id is None: |
| 103 | + raise RuntimeError("oauth_client_id is not set in the config file") |
| 104 | + |
| 105 | + base = urlparse(settings.instance().dremio.uri) |
| 106 | + if base.netloc.startswith("api."): |
| 107 | + base = base._replace(netloc=f"login.{base.netloc[4:]}") |
| 108 | + url = base.geturl() |
| 109 | + |
| 110 | + self.client_id = settings.instance().dremio.oauth2.client_id |
| 111 | + self.authorize_url = f"{url}/oauth/authorize" |
| 112 | + self.access_token_url = f"{url}/oauth/token" |
| 113 | + self.redirect_port = 8976 |
| 114 | + self.scope = "dremio.all offline_access" |
| 115 | + self.code_verifier, self.code_challenge = get_pkce_pair() |
| 116 | + self.init_params = { |
| 117 | + "client_id": self.client_id, |
| 118 | + "response_type": "code", |
| 119 | + "redirect_uri": f"http://localhost:{self.redirect_port}", |
| 120 | + "scope": self.scope, |
| 121 | + "code_challenge": self.code_challenge, |
| 122 | + "code_challenge_method": "S256", |
| 123 | + } |
| 124 | + print(self.init_params) |
| 125 | + self.oauth_redirect = OAuth2Redirect( |
| 126 | + self.client_id, |
| 127 | + self.code_verifier, |
| 128 | + self.code_challenge, |
| 129 | + self.access_token_url, |
| 130 | + self.redirect_port, |
| 131 | + ) |
| 132 | + |
| 133 | + |
| 134 | +def get_oauth2_tokens() -> OAuth2Redirect: |
| 135 | + # client_id = "311658a1-19ae-4851-b6a6-911c794312e2", |
| 136 | + # client_id = "a3743893-d849-4c8a-893b-533dd457aac4" |
| 137 | + oauth = OAuth2() |
| 138 | + server_thread = Thread( |
| 139 | + target=run_server, |
| 140 | + daemon=True, |
| 141 | + args=(oauth.oauth_redirect,), |
| 142 | + ) |
| 143 | + server_thread.start() |
| 144 | + |
| 145 | + url = f"{oauth.authorize_url}?{urlencode(oauth.init_params)}" |
| 146 | + print(f"Opening browser to {url}") |
| 147 | + webbrowser.open(url) |
| 148 | + server_thread.join() |
| 149 | + print( |
| 150 | + f"Access token: {oauth.oauth_redirect.access_token}\n" |
| 151 | + f"Refresh token: {oauth.oauth_redirect.refresh_token}\n" |
| 152 | + f"Expiry: {oauth.oauth_redirect.expiry}\n" |
| 153 | + ) |
| 154 | + return oauth.oauth_redirect |
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