reorganization

blueprints/users/oidc_service.py

@@ -0,0 +1,81 @@
+"""
+OIDC User Management Service
+"""
+
+from typing import Dict, Any, Optional
+from uuid import uuid4
+from .models import User
+
+
+class OIDCUserService:
+    """Service for managing OIDC user authentication and provisioning"""
+
+    @staticmethod
+    async def get_or_create_user_from_oidc(claims: Dict[str, Any]) -> User:
+        """
+        Get existing user by OIDC subject, or create new user from OIDC claims
+
+        Args:
+            claims: Decoded OIDC ID token claims
+
+        Returns:
+            User object (existing or newly created)
+        """
+        oidc_subject = claims.get("sub")
+        if not oidc_subject:
+            raise ValueError("No 'sub' claim in ID token")
+
+        # Try to find existing user by OIDC subject
+        user = await User.filter(oidc_subject=oidc_subject).first()
+
+        if user:
+            # Update user info from latest claims (optional)
+            user.email = claims.get("email", user.email)
+            user.username = (
+                claims.get("preferred_username") or claims.get("name") or user.username
+            )
+            # Update LDAP groups from claims
+            user.ldap_groups = claims.get("groups", [])
+            await user.save()
+            return user
+
+        # Check if user exists by email (migration case)
+        email = claims.get("email")
+        if email:
+            user = await User.filter(email=email, auth_provider="local").first()
+            if user:
+                # Migrate existing local user to OIDC
+                user.oidc_subject = oidc_subject
+                user.auth_provider = "oidc"
+                user.password = None  # Clear password
+                user.ldap_groups = claims.get("groups", [])
+                await user.save()
+                return user
+
+        # Create new user from OIDC claims
+        username = (
+            claims.get("preferred_username")
+            or claims.get("name")
+            or claims.get("email", "").split("@")[0]
+            or f"user_{oidc_subject[:8]}"
+        )
+
+        # Extract LDAP groups from claims
+        groups = claims.get("groups", [])
+
+        user = await User.create(
+            id=uuid4(),
+            username=username,
+            email=email or f"{oidc_subject}@oidc.local",  # Fallback if no email claim
+            oidc_subject=oidc_subject,
+            auth_provider="oidc",
+            password=None,
+            ldap_groups=groups,
+        )
+
+        return user
+
+    @staticmethod
+    async def find_user_by_oidc_subject(oidc_subject: str) -> Optional[User]:
+        """Find user by OIDC subject ID"""
+        return await User.filter(oidc_subject=oidc_subject).first()