RegWatch backend : FastAPI + Postgres partagé + Docker/CI homelab

- SECRET_KEY et DATABASE_URL externalisés (Vault -> env), plus de secret en dur
- SQLite -> postgres-shared (psycopg2), schéma créé au boot (entrypoint.sh)
- Dockerfile + docker-compose (Watchtower) + .gitea/workflows/build.yml

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

api/auth.py

@@ -0,0 +1,61 @@
+from datetime import datetime, timedelta, timezone
+from typing import Optional
+import os
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from pydantic import BaseModel
+
+# Secret JWT injecté par l'env (Vault -> .env). Repli dev uniquement ; en prod SECRET_KEY est obligatoire.
+SECRET_KEY = os.getenv("SECRET_KEY", "dev-only-insecure-secret-change-me")
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = int(os.getenv("ACCESS_TOKEN_EXPIRE_MINUTES", "30"))
+
+pwd_context = CryptContext(schemes=["argon2"], deprecated="auto")
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+class TokenData(BaseModel):
+    email: Optional[str] = None
+
+class UserLogin(BaseModel):
+    email: str
+    password: str
+
+class UserCreate(BaseModel):
+    email: str
+    password: str
+    full_name: Optional[str] = None
+
+class UserResponse(BaseModel):
+    id: int
+    email: str
+    full_name: Optional[str] = None
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.now(timezone.utc) + expires_delta
+    else:
+        expire = datetime.now(timezone.utc) + timedelta(minutes=15)
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt
+
+def decode_token(token: str) -> Optional[str]:
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        email: str = payload.get("sub")
+        if email is None:
+            return None
+        return email
+    except JWTError:
+        return None
+

api/main.py

@@ -0,0 +1,141 @@
+from fastapi import FastAPI, Depends, HTTPException, status
+from fastapi.middleware.cors import CORSMiddleware
+from datetime import timedelta
+from database.database import SessionLocal
+from database.models import Document, User
+from api.auth import (
+    UserLogin, UserCreate, Token, UserResponse, get_password_hash, verify_password,
+    create_access_token, decode_token, ACCESS_TOKEN_EXPIRE_MINUTES
+)
+
+app = FastAPI()
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+@app.get("/")
+def root():
+    return {"message": "RegWatch API running"}
+
+@app.post("/test-login")
+def test_login(credentials: UserLogin):
+    return {"received": credentials.dict()}
+
+@app.post("/signup", response_model=UserResponse)
+def signup(user: UserCreate):
+    db = SessionLocal()
+    
+    existing_user = db.query(User).filter(User.email == user.email).first()
+    if existing_user:
+        db.close()
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Email already registered"
+        )
+    
+    hashed_password = get_password_hash(user.password)
+    db_user = User(
+        email=user.email,
+        password=hashed_password,
+        full_name=user.full_name
+    )
+    db.add(db_user)
+    db.commit()
+    db.refresh(db_user)
+    db.close()
+    
+    return UserResponse(
+        id=db_user.id,
+        email=db_user.email,
+        full_name=db_user.full_name
+    )
+
+@app.post("/login", response_model=Token)
+def login(credentials: UserLogin):
+    try:
+        db = SessionLocal()
+        
+        user = db.query(User).filter(User.email == credentials.email).first()
+        db.close()
+        
+        if not user:
+            raise HTTPException(
+                status_code=status.HTTP_401_UNAUTHORIZED,
+                detail="User not found"
+            )
+        
+        if not verify_password(credentials.password, user.password):
+            raise HTTPException(
+                status_code=status.HTTP_401_UNAUTHORIZED,
+                detail="Invalid password"
+            )
+        
+        access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
+        access_token = create_access_token(
+            data={"sub": user.email}, expires_delta=access_token_expires
+        )
+        
+        return Token(access_token=access_token, token_type="bearer")
+    except HTTPException:
+        raise
+    except Exception as e:
+        print(f"ERROR in login: {str(e)}")
+        import traceback
+        traceback.print_exc()
+        raise HTTPException(
+            status_code=500,
+            detail=f"Server error: {str(e)}"
+        )
+
+@app.get("/me", response_model=UserResponse)
+def get_current_user(token: str):
+    email = decode_token(token)
+    if not email:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Invalid token"
+        )
+    
+    db = SessionLocal()
+    user = db.query(User).filter(User.email == email).first()
+    db.close()
+    
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="User not found"
+        )
+    
+    return UserResponse(
+        id=user.id,
+        email=user.email,
+        full_name=user.full_name
+    )
+
+@app.get("/documents")
+def get_documents():
+    db = SessionLocal()
+
+    documents = db.query(Document).all()
+
+    result = []
+
+    for doc in documents:
+        result.append({
+            "id": doc.id,
+            "title": doc.title,
+            "ingredient": doc.ingredient,
+            "source": doc.source,
+            "type": doc.document_type,
+            "date": doc.meeting_date,
+            "pdf_url": doc.pdf_url
+        })
+
+    db.close()
+
+    return result