init commit

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

qwen3-tts-backend/api/auth.py

@@ -0,0 +1,107 @@
+from datetime import timedelta
+from typing import Annotated
+from fastapi import APIRouter, Depends, HTTPException, status, Request
+from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
+from sqlalchemy.orm import Session
+from slowapi import Limiter
+from slowapi.util import get_remote_address
+
+from config import settings
+from core.security import (
+    get_password_hash,
+    verify_password,
+    create_access_token,
+    decode_access_token
+)
+from db.database import get_db
+from db.crud import get_user_by_username, get_user_by_email, create_user
+from schemas.user import User, UserCreate, Token
+
+router = APIRouter(prefix="/auth", tags=["authentication"])
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/auth/token")
+
+limiter = Limiter(key_func=get_remote_address)
+
+async def get_current_user(
+    token: Annotated[str, Depends(oauth2_scheme)],
+    db: Session = Depends(get_db)
+) -> User:
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+
+    username = decode_access_token(token)
+    if username is None:
+        raise credentials_exception
+
+    user = get_user_by_username(db, username=username)
+    if user is None:
+        raise credentials_exception
+
+    return user
+
+@router.post("/register", response_model=User, status_code=status.HTTP_201_CREATED)
+@limiter.limit("5/minute")
+async def register(request: Request, user_data: UserCreate, db: Session = Depends(get_db)):
+    existing_user = get_user_by_username(db, username=user_data.username)
+    if existing_user:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Username already registered"
+        )
+
+    existing_email = get_user_by_email(db, email=user_data.email)
+    if existing_email:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Email already registered"
+        )
+
+    hashed_password = get_password_hash(user_data.password)
+    user = create_user(
+        db,
+        username=user_data.username,
+        email=user_data.email,
+        hashed_password=hashed_password
+    )
+
+    return user
+
+@router.post("/token", response_model=Token)
+@limiter.limit("5/minute")
+async def login(
+    request: Request,
+    form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
+    db: Session = Depends(get_db)
+):
+    user = get_user_by_username(db, username=form_data.username)
+    if not user or not verify_password(form_data.password, user.hashed_password):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    if not user.is_active:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Inactive user"
+        )
+
+    access_token_expires = timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    access_token = create_access_token(
+        data={"sub": user.username}, expires_delta=access_token_expires
+    )
+
+    return {"access_token": access_token, "token_type": "bearer"}
+
+@router.get("/me", response_model=User)
+@limiter.limit("30/minute")
+async def get_current_user_info(
+    request: Request,
+    current_user: Annotated[User, Depends(get_current_user)]
+):
+    return current_user