İlk commit: Stepstead backend (FastAPI)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

deps.py

@@ -0,0 +1,76 @@
+from typing import Annotated
+
+from fastapi import Depends, Header, HTTPException, status
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from models import Role, User, get_db
+from security import decode_token
+
+# Eski davranışla uyumluluk: bu hesaplar rol atanmasa da tam yetkili.
+LEGACY_ADMIN_EMAILS = {"jts@jts.rocks", "afm@jts.rocks"}
+
+# Panel izin kataloğu (kullanıcı yönetimi UI'ı buradan okur)
+PERMISSIONS = {
+    "upload":   "Dosya yükleme + Asset Takip",
+    "lore":     "Lore notları (görme + ekleme + düzenleme)",
+    "map_view": "Harita editörünü görüntüleme (salt okunur)",
+    "npc":      "NPC listesi (görme + ekleme + düzenleme)",
+    "map_edit": "Harita etiketi ekleme / düzenleme / silme",
+    "chars":    "Karakterler (sınıf + skill tanımları)",
+    "users":    "Kullanıcı ve rol yönetimi",
+}
+
+
+async def get_user_perms(user: User, db: AsyncSession) -> set[str]:
+    if user.email in LEGACY_ADMIN_EMAILS:
+        return {"*"}
+    if not user.role_id:
+        return set()
+    role = (await db.execute(select(Role).where(Role.id == user.role_id))).scalar_one_or_none()
+    return set(role.permissions or []) if role else set()
+
+
+def has_perm(perms: set[str], perm: str) -> bool:
+    return "*" in perms or perm in perms
+
+
+def require_perm(perm: str):
+    async def dep(
+        user: User = Depends(get_current_user),
+        db: AsyncSession = Depends(get_db),
+    ) -> User:
+        perms = await get_user_perms(user, db)
+        if not has_perm(perms, perm):
+            raise HTTPException(status.HTTP_403_FORBIDDEN, "Yetkin yok")
+        return user
+    return dep
+
+
+async def get_current_user(
+    authorization: Annotated[str | None, Header()] = None,
+    db: AsyncSession = Depends(get_db),
+) -> User:
+    if not authorization or not authorization.lower().startswith("bearer "):
+        raise HTTPException(status.HTTP_401_UNAUTHORIZED, "Missing bearer token")
+    token = authorization.split(None, 1)[1].strip()
+    try:
+        payload = decode_token(token)
+    except Exception as e:
+        raise HTTPException(status.HTTP_401_UNAUTHORIZED, f"Invalid token: {e}")
+    user_id = int(payload["sub"])
+    user = (await db.execute(select(User).where(User.id == user_id))).scalar_one_or_none()
+    if not user or not user.is_active:
+        raise HTTPException(status.HTTP_401_UNAUTHORIZED, "User not found or inactive")
+    return user
+
+
+async def require_panel(
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+) -> User:
+    """Herhangi bir panel yetkisi olan (bir rolü/izni bulunan) her yetkili."""
+    perms = await get_user_perms(user, db)
+    if not perms:
+        raise HTTPException(status.HTTP_403_FORBIDDEN, "Panel yetkin yok")
+    return user