v1.0 - Version stable: multi-PC, détection UI-DETR-1, 3 modes exécution
- Frontend v4 accessible sur réseau local (192.168.1.40) - Ports ouverts: 3002 (frontend), 5001 (backend), 5004 (dashboard) - Ollama GPU fonctionnel - Self-healing interactif - Dashboard confiance Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Dom
519
core/security/api_tokens.py
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519
core/security/api_tokens.py
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"""
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API Token Authentication System
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Système d'authentification par tokens avec support des rôles.
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Fiche #23: API Security & Governance
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"""
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import os
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import hmac
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import hashlib
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import secrets
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import logging
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from enum import Enum
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from typing import Dict, Optional, Tuple
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from dataclasses import dataclass
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from datetime import datetime, timedelta
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from ..system.safety_switch import get_safety_switch
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logger = logging.getLogger(__name__)
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class TokenRole(Enum):
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"""Rôles disponibles pour les tokens API."""
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ADMIN = "admin"
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READ_ONLY = "read_only"
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ANON = "anonymous" # Ajout pour les requêtes non authentifiées
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@dataclass
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class TokenInfo:
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"""Informations sur un token validé."""
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role: TokenRole
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user_id: Optional[str] = None
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expires_at: Optional[datetime] = None
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metadata: Optional[Dict] = None
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def __post_init__(self):
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if self.metadata is None:
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self.metadata = {}
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class TokenValidationError(Exception):
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"""Erreur de validation de token."""
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pass
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class TokenManager:
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"""
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Gestionnaire des tokens API avec support RBAC.
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Supporte:
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- Tokens admin et read-only
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- Rétrocompatibilité avec X-Admin-Token
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- Validation sécurisée avec HMAC
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- Expiration des tokens
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"""
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def __init__(self):
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self._load_config()
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self._safety = get_safety_switch()
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def _load_config(self):
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"""Charge la configuration des tokens."""
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# Debug: log environment variables
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admin_token = os.getenv('RPA_TOKEN_ADMIN')
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readonly_token = os.getenv('RPA_TOKEN_READONLY')
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logger.info(f"Loading token config. RPA_TOKEN_ADMIN present: {bool(admin_token)}")
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logger.info(f"Loading token config. RPA_TOKEN_READONLY present: {bool(readonly_token)}")
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if admin_token:
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logger.info(f"RPA_TOKEN_ADMIN value: {admin_token[:8]}...")
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if readonly_token:
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logger.info(f"RPA_TOKEN_READONLY value: {readonly_token[:8]}...")
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# Clé secrète pour signer les tokens
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self.secret_key = os.getenv("TOKEN_SECRET_KEY", "dev-token-secret-change-in-production")
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# Tokens statiques pour rétrocompatibilité
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self.admin_tokens = set()
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if os.getenv("ADMIN_TOKENS"):
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self.admin_tokens = set(os.getenv("ADMIN_TOKENS").split(","))
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# Support rétrocompatibilité X-Admin-Token de fiche #22
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if os.getenv("X_ADMIN_TOKEN"):
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self.admin_tokens.add(os.getenv("X_ADMIN_TOKEN"))
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# Support tokens RPA Vision V3 (Fiche #23)
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if admin_token:
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self.admin_tokens.add(admin_token)
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logger.info(f"Added RPA_TOKEN_ADMIN to admin_tokens")
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# Temporary fix: Add production tokens directly
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prod_admin_token = "73cf0db73f9a5064e79afebba96c85338be65cc2060b9c1d42c3ea5dd7d4e490"
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prod_readonly_token = "7eea1de415cc69c02381ce09ff63aeebf3e1d9b476d54aa6730ba9de849e3dc6"
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self.admin_tokens.add(prod_admin_token)
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logger.info(f"Added hardcoded production admin token")
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self.read_only_tokens = set()
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if os.getenv("READ_ONLY_TOKENS"):
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self.read_only_tokens = set(os.getenv("READ_ONLY_TOKENS").split(","))
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# Support tokens RPA Vision V3 (Fiche #23)
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if readonly_token:
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self.read_only_tokens.add(readonly_token)
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logger.info(f"Added RPA_TOKEN_READONLY to read_only_tokens")
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# Temporary fix: Add production tokens directly
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self.read_only_tokens.add(prod_readonly_token)
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logger.info(f"Added hardcoded production readonly token")
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# Configuration expiration
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self.default_expiry_hours = int(os.getenv("TOKEN_EXPIRY_HOURS", "24"))
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logger.info(f"TokenManager initialized with {len(self.admin_tokens)} admin tokens, "
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f"{len(self.read_only_tokens)} read-only tokens")
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def generate_token(self, role: TokenRole, user_id: Optional[str] = None,
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expires_in_hours: Optional[int] = None) -> str:
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"""
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Génère un nouveau token API signé.
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Args:
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role: Rôle du token
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user_id: ID utilisateur optionnel
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expires_in_hours: Expiration en heures (défaut: 24h)
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Returns:
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Token signé
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"""
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if not self._safety.is_feature_enabled("api_tokens"):
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raise TokenValidationError("Token generation is disabled by safety configuration")
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expires_in = expires_in_hours or self.default_expiry_hours
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expires_at = datetime.utcnow() + timedelta(hours=expires_in)
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# Payload du token
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payload = {
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"role": role.value,
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"user_id": user_id,
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"expires_at": int(expires_at.timestamp()),
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"nonce": secrets.token_hex(8)
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}
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# Créer la signature HMAC
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payload_str = "|".join([
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payload["role"],
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payload["user_id"] or "",
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str(payload["expires_at"]),
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payload["nonce"]
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])
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signature = hmac.new(
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self.secret_key.encode(),
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payload_str.encode(),
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hashlib.sha256
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).hexdigest()
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# Format: role|user_id|expires_at|nonce|signature
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token = f"{payload['role']}|{payload['user_id'] or ''}|{payload['expires_at']}|{payload['nonce']}|{signature}"
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logger.info(f"Generated {role.value} token for user {user_id or 'anonymous'}")
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return token
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def validate_token(self, token: str) -> TokenInfo:
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"""
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Valide un token API.
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Args:
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token: Token à valider
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Returns:
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Informations du token validé
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Raises:
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TokenValidationError: Si le token est invalide
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"""
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if not token:
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raise TokenValidationError("Token is required")
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# Vérifier si les tokens sont désactivés
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if not self._safety.is_feature_enabled("api_tokens"):
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raise TokenValidationError("Token authentication is disabled")
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# Vérifier les tokens statiques d'abord (rétrocompatibilité)
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if token in self.admin_tokens:
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return TokenInfo(role=TokenRole.ADMIN, metadata={"type": "static"})
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if token in self.read_only_tokens:
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return TokenInfo(role=TokenRole.READ_ONLY, metadata={"type": "static"})
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# Valider les tokens signés
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return self._validate_signed_token(token)
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def _validate_signed_token(self, token: str) -> TokenInfo:
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"""Valide un token signé."""
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try:
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parts = token.split("|")
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if len(parts) != 5:
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raise TokenValidationError("Invalid token format")
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role_str, user_id, expires_at_str, nonce, signature = parts
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# Vérifier le rôle
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try:
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role = TokenRole(role_str)
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except ValueError:
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raise TokenValidationError("Invalid token role")
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# Vérifier l'expiration
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expires_at = datetime.fromtimestamp(int(expires_at_str))
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if datetime.utcnow() > expires_at:
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raise TokenValidationError("Token has expired")
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# Vérifier la signature
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payload_str = "|".join([role_str, user_id, expires_at_str, nonce])
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expected_signature = hmac.new(
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self.secret_key.encode(),
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payload_str.encode(),
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hashlib.sha256
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).hexdigest()
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if not hmac.compare_digest(signature, expected_signature):
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raise TokenValidationError("Invalid token signature")
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return TokenInfo(
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role=role,
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user_id=user_id if user_id else None,
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expires_at=expires_at,
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metadata={"type": "signed"}
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)
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except (ValueError, IndexError) as e:
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raise TokenValidationError(f"Token parsing error: {e}")
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def revoke_static_token(self, token: str) -> bool:
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"""
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Révoque un token statique.
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Args:
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token: Token à révoquer
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Returns:
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True si révoqué avec succès
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"""
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revoked = False
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if token in self.admin_tokens:
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self.admin_tokens.remove(token)
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revoked = True
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if token in self.read_only_tokens:
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self.read_only_tokens.remove(token)
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revoked = True
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if revoked:
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logger.warning(f"Static token revoked: {token[:8]}...")
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return revoked
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def get_token_info_safe(self, token: str) -> Dict:
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"""
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Retourne les informations d'un token de manière sécurisée.
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Args:
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token: Token à analyser
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Returns:
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Informations non-sensibles du token
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"""
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try:
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info = self.validate_token(token)
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return {
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"valid": True,
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"role": info.role.value,
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"user_id": info.user_id,
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"expires_at": info.expires_at.isoformat() if info.expires_at else None,
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"type": info.metadata.get("type", "unknown")
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}
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except TokenValidationError as e:
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return {
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"valid": False,
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"error": str(e)
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}
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# Instance globale
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_token_manager = None
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def get_token_manager() -> TokenManager:
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"""Retourne l'instance globale du gestionnaire de tokens."""
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global _token_manager
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# Force recreation to pick up new environment variables
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_token_manager = None
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if _token_manager is None:
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_token_manager = TokenManager()
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return _token_manager
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def validate_token(token: str) -> TokenInfo:
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"""
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Fonction utilitaire pour valider un token.
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Args:
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token: Token à valider
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Returns:
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Informations du token
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"""
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return get_token_manager().validate_token(token)
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def generate_api_token(role: TokenRole, user_id: Optional[str] = None) -> str:
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"""
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Fonction utilitaire pour générer un token.
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Args:
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role: Rôle du token
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user_id: ID utilisateur optionnel
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Returns:
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Token généré
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"""
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return get_token_manager().generate_token(role, user_id)
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def extract_token_from_request(headers: Dict[str, str]) -> Optional[str]:
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"""
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Extrait le token d'une requête HTTP.
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Supporte:
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- Authorization: Bearer <token>
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- X-API-Token: <token>
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- X-Admin-Token: <token> (rétrocompatibilité)
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Args:
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headers: Headers HTTP
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Returns:
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Token extrait ou None
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"""
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# Authorization Bearer
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auth_header = headers.get("Authorization", "")
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if auth_header.startswith("Bearer "):
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return auth_header[7:]
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# X-API-Token
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if "X-API-Token" in headers:
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return headers["X-API-Token"]
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# X-Admin-Token (rétrocompatibilité fiche #22)
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if "X-Admin-Token" in headers:
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return headers["X-Admin-Token"]
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return None
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@dataclass
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class RequestContext:
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"""Context d'une requête avec informations d'authentification."""
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role: Optional[TokenRole] = None
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user_id: Optional[str] = None
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token_valid: bool = False
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error: Optional[str] = None
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def classify_request(
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method: str,
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path: str,
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auth_header: Optional[str] = None,
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x_admin_token: Optional[str] = None,
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cookie_token: Optional[str] = None,
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) -> Tuple[RequestContext, Optional[str]]:
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"""
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Classifie une requête et extrait les informations d'authentification.
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Args:
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method: Méthode HTTP
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path: Chemin de la requête
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auth_header: Header Authorization
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x_admin_token: Header X-Admin-Token
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cookie_token: Token depuis cookie
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Returns:
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Tuple (context, token_used)
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"""
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token_manager = get_token_manager()
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# Extraire le token depuis les différentes sources
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token = None
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token_source = None
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if auth_header and auth_header.startswith("Bearer "):
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token = auth_header[7:]
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token_source = "bearer"
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elif x_admin_token:
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token = x_admin_token
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token_source = "x-admin-token"
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elif cookie_token:
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token = cookie_token
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token_source = "cookie"
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if not token:
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return RequestContext(), None
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try:
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token_info = token_manager.validate_token(token)
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return RequestContext(
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role=token_info.role,
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user_id=token_info.user_id,
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token_valid=True
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), token
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except TokenValidationError as e:
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return RequestContext(
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token_valid=False,
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error=str(e)
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), token
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def auth_required() -> bool:
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"""
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Vérifie si l'authentification est requise globalement.
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En mode développement, l'auth peut être désactivée.
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Returns:
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True si l'auth est requise
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"""
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import os
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# En production, l'auth est toujours requise
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env = os.getenv("ENVIRONMENT", "development").lower()
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if env == "production":
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return True
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# En dev, on peut désactiver l'auth avec RPA_AUTH_DISABLED=1
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auth_disabled = os.getenv("RPA_AUTH_DISABLED", "").lower() in {"1", "true", "yes"}
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return not auth_disabled
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def can_read(role: TokenRole) -> bool:
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"""Vérifie si le rôle peut lire."""
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return role in {TokenRole.ADMIN, TokenRole.READ_ONLY}
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def can_write(role: TokenRole) -> bool:
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"""Vérifie si le rôle peut écrire."""
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return role == TokenRole.ADMIN
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@dataclass
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class RequestContext:
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"""Contexte d'une requête authentifiée."""
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role: TokenRole = TokenRole.ANON
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token_present: bool = False
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token_valid: bool = False
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token_hash: Optional[str] = None
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user_id: Optional[str] = None
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error: Optional[str] = None
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def classify_request_simple(
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headers: Dict[str, str],
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cookies: Dict[str, str],
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query_params: Dict[str, str],
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) -> Tuple[RequestContext, str]:
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"""
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Version simplifiée de classify_request pour les middlewares.
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Returns:
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(RequestContext, source)
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"""
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# Extraire le token de différentes sources
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token = None
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source = "none"
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# 1. Authorization header
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auth_header = headers.get("authorization", "")
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if auth_header.startswith("Bearer "):
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token = auth_header[7:]
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source = "bearer"
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# 2. X-Admin-Token header
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if not token:
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token = headers.get("x-admin-token")
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if token:
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source = "header"
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# 3. Cookie
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if not token:
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token = cookies.get("rpa_token")
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if token:
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source = "cookie"
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# 4. Query parameter
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if not token:
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token = query_params.get("token")
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if token:
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source = "query"
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if not token:
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return RequestContext(token_present=False), source
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# Valider le token
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try:
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token_info = validate_token(token)
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token_hash = hashlib.sha256(token.encode()).hexdigest()[:16]
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return RequestContext(
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role=token_info.role,
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token_present=True,
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token_valid=True,
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token_hash=token_hash,
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||||
user_id=token_info.user_id,
|
||||
), source
|
||||
except TokenValidationError as e:
|
||||
return RequestContext(
|
||||
token_present=True,
|
||||
token_valid=False,
|
||||
error=str(e),
|
||||
), source
|
||||
Reference in New Issue
Block a user