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| 1 | +# Copyright 2025 Kencove (https://www.kencove.com/) |
| 2 | +# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). |
| 3 | + |
| 4 | +import logging |
| 5 | +from functools import lru_cache |
| 6 | + |
| 7 | +import jwt |
| 8 | +import requests |
| 9 | +from jwt import PyJWKClient |
| 10 | +from jwt.exceptions import InvalidTokenError, PyJWTError |
| 11 | + |
| 12 | +from odoo import models |
| 13 | +from odoo.http import request |
| 14 | +from odoo.service import security |
| 15 | + |
| 16 | +_logger = logging.getLogger(__name__) |
| 17 | + |
| 18 | + |
| 19 | +@lru_cache(maxsize=16) |
| 20 | +def _get_jwk_client(jwks_url: str) -> PyJWKClient: |
| 21 | + """ |
| 22 | + Cache a PyJWKClient per JWKS URL (per worker). |
| 23 | + PyJWKClient itself caches fetched JWKS keys. |
| 24 | + """ |
| 25 | + return PyJWKClient(jwks_url) |
| 26 | + |
| 27 | + |
| 28 | +class IrHttp(models.AbstractModel): |
| 29 | + _inherit = "ir.http" |
| 30 | + |
| 31 | + @classmethod |
| 32 | + def _authenticate(cls, endpoint): |
| 33 | + # If already authenticated, keep default flow |
| 34 | + if getattr(request, "session", None) and request.session.uid: |
| 35 | + return super()._authenticate(endpoint) |
| 36 | + |
| 37 | + result = cls._try_autologin_from_jwt_cookie() |
| 38 | + |
| 39 | + if not result: |
| 40 | + return super()._authenticate(endpoint) |
| 41 | + |
| 42 | + @classmethod |
| 43 | + def _try_autologin_from_jwt_cookie(cls): |
| 44 | + settings = cls._get_autologin_settings() |
| 45 | + if not settings: |
| 46 | + _logger.debug("JWT autologin disabled: missing config parameters") |
| 47 | + return False |
| 48 | + |
| 49 | + token = cls._get_cookie_token(settings["cookie_name"]) |
| 50 | + if not token: |
| 51 | + _logger.debug( |
| 52 | + "JWT autologin skipped: cookie '%s' not found", |
| 53 | + settings["cookie_name"], |
| 54 | + ) |
| 55 | + return False |
| 56 | + |
| 57 | + claims = cls._verify_jwt_with_pyjwt(token, settings["jwks_url"]) |
| 58 | + if not claims: |
| 59 | + _logger.debug("JWT autologin failed: token verification returned no claims") |
| 60 | + return False |
| 61 | + |
| 62 | + # Optional hardening: accept only access tokens when claim exists |
| 63 | + token_use = claims.get("token_use") |
| 64 | + if token_use and token_use != "access": |
| 65 | + _logger.debug("Skipping autologin: token_use=%s", token_use) |
| 66 | + return False |
| 67 | + |
| 68 | + email = cls._get_email_from_userinfo(settings["userinfo_url"], token) |
| 69 | + if not email: |
| 70 | + _logger.debug("JWT autologin failed: email not found in userinfo response") |
| 71 | + return False |
| 72 | + |
| 73 | + user = cls._find_user_by_email(email) |
| 74 | + if not user: |
| 75 | + _logger.debug( |
| 76 | + "JWT autologin failed: no active user found for email=%s", |
| 77 | + email, |
| 78 | + ) |
| 79 | + return False |
| 80 | + |
| 81 | + cls._force_login(user) |
| 82 | + |
| 83 | + return True |
| 84 | + |
| 85 | + @classmethod |
| 86 | + def _get_autologin_settings(cls): |
| 87 | + icp = request.env["ir.config_parameter"].sudo() |
| 88 | + cookie_name = ( |
| 89 | + icp.get_param("auth_autologin_via_jwt_cookie.jwt_cookie_name") or "" |
| 90 | + ).strip() |
| 91 | + jwks_url = ( |
| 92 | + icp.get_param("auth_autologin_via_jwt_cookie.jwks_url") or "" |
| 93 | + ).strip() |
| 94 | + userinfo_url = ( |
| 95 | + icp.get_param("auth_autologin_via_jwt_cookie.userinfo_url") or "" |
| 96 | + ).strip() |
| 97 | + |
| 98 | + if not (cookie_name and jwks_url and userinfo_url): |
| 99 | + _logger.debug( |
| 100 | + "JWT autologin config incomplete: cookie_name=%s, jwks_url=%s, userinfo_url=%s", |
| 101 | + bool(cookie_name), |
| 102 | + bool(jwks_url), |
| 103 | + bool(userinfo_url), |
| 104 | + ) |
| 105 | + return None |
| 106 | + return { |
| 107 | + "cookie_name": cookie_name, |
| 108 | + "jwks_url": jwks_url, |
| 109 | + "userinfo_url": userinfo_url, |
| 110 | + } |
| 111 | + |
| 112 | + @classmethod |
| 113 | + def _get_cookie_token(cls, cookie_name: str): |
| 114 | + return request.httprequest.cookies.get(cookie_name) |
| 115 | + |
| 116 | + @classmethod |
| 117 | + def _verify_jwt_with_pyjwt(cls, token: str, jwks_url: str): |
| 118 | + """ |
| 119 | + Verify RS256 token using JWKS URL via PyJWKClient (cached). |
| 120 | + Returns claims dict if valid, otherwise None. |
| 121 | + """ |
| 122 | + try: |
| 123 | + header = jwt.get_unverified_header(token) |
| 124 | + except PyJWTError as e: |
| 125 | + _logger.info("Invalid JWT header: %s", e) |
| 126 | + return None |
| 127 | + |
| 128 | + if header.get("alg") != "RS256": |
| 129 | + _logger.info("Skipping autologin: unexpected alg=%s", header.get("alg")) |
| 130 | + return None |
| 131 | + |
| 132 | + if not header.get("kid"): |
| 133 | + _logger.info("Skipping autologin: missing kid") |
| 134 | + return None |
| 135 | + |
| 136 | + try: |
| 137 | + jwk_client = _get_jwk_client(jwks_url) |
| 138 | + signing_key = jwk_client.get_signing_key_from_jwt(token).key |
| 139 | + except (requests.RequestException, PyJWTError) as e: |
| 140 | + _logger.warning("Unable to fetch/resolve JWKS signing key: %s", e) |
| 141 | + return None |
| 142 | + |
| 143 | + try: |
| 144 | + claims = jwt.decode( |
| 145 | + token, |
| 146 | + signing_key, |
| 147 | + algorithms=["RS256"], |
| 148 | + options={ |
| 149 | + "verify_aud": False, |
| 150 | + }, |
| 151 | + ) |
| 152 | + return claims |
| 153 | + except InvalidTokenError as e: |
| 154 | + _logger.info("JWT verification failed: %s", e) |
| 155 | + return None |
| 156 | + |
| 157 | + @classmethod |
| 158 | + def _get_email_from_userinfo(cls, userinfo_url: str, token: str): |
| 159 | + try: |
| 160 | + res = requests.get( |
| 161 | + userinfo_url, |
| 162 | + headers={"Authorization": f"Bearer {token}"}, |
| 163 | + timeout=5, |
| 164 | + ) |
| 165 | + res.raise_for_status() |
| 166 | + except requests.RequestException as e: |
| 167 | + _logger.warning("Userinfo request failed: %s", e) |
| 168 | + return None |
| 169 | + |
| 170 | + try: |
| 171 | + data = res.json() |
| 172 | + except ValueError: |
| 173 | + _logger.info("Userinfo response is not JSON") |
| 174 | + return None |
| 175 | + |
| 176 | + email = (data.get("email") or "").strip() |
| 177 | + return email or None |
| 178 | + |
| 179 | + @classmethod |
| 180 | + def _find_user_by_email(cls, email: str): |
| 181 | + user = ( |
| 182 | + request.env["res.users"] |
| 183 | + .sudo() |
| 184 | + .search( |
| 185 | + ["|", ("login", "=ilike", email), ("email", "=ilike", email)], |
| 186 | + limit=1, |
| 187 | + ) |
| 188 | + ) |
| 189 | + return user if user and user.active else None |
| 190 | + |
| 191 | + @classmethod |
| 192 | + def _force_login(cls, user): |
| 193 | + request.update_env(user=user.id) |
| 194 | + request.session.uid = user.id |
| 195 | + request.session.session_token = security.compute_session_token( |
| 196 | + request.session, request.env |
| 197 | + ) |
| 198 | + |
| 199 | + _logger.info("Auto-authenticated user %s via JWT cookie", user.login) |
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