JWT

Author: saya-ashen

server/__pycache__/main.cpython-312.pyc

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+import os
+from datetime import datetime, timedelta
+from typing import Annotated, Union
+
+from fastapi import Depends, FastAPI, HTTPException, UploadFile, status
+from fastapi.responses import FileResponse
+from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from pydantic import BaseModel
+
+# to get a string like this run:
+# openssl rand -hex 32
+SECRET_KEY = "09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7"
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = 30
+
+fake_users_db = {
+    "johndoe": {
+        "username": "johndoe",
+        "full_name": "John Doe",
+        "email": "johndoe@example.com",
+        "hashed_password": "$2b$12$EixZaYVK1fsbw1ZfbX3OXePaWxn96p36WQoeG6Lruj3vjPGga31lW",
+        "disabled": False,
+    }
+}
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+class TokenData(BaseModel):
+    username: Union[str, None] = None
+
+
+class User(BaseModel):
+    username: str
+    email: Union[str, None] = None
+    full_name: Union[str, None] = None
+    disabled: Union[bool, None] = None
+
+
+class UserInDB(User):
+    hashed_password: str
+
+
+class FileInfo(BaseModel):
+    name: str
+    size: int
+    type: str
+    MD5: str
+
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
+
+# 定义文件系统根目录
+root = "./root"
+
+app = FastAPI()
+
+
+def verify_password(plain_password, hashed_password):
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password):
+    return pwd_context.hash(password)
+
+
+def get_user(db, username: str):
+    if username in db:
+        user_dict = db[username]
+        return UserInDB(**user_dict)
+
+
+def authenticate_user(fake_db, username: str, password: str):
+    user = get_user(fake_db, username)
+    if not user:
+        return False
+    if not verify_password(password, user.hashed_password):
+        return False
+    return user
+
+
+def create_access_token(data: dict, expires_delta: Union[timedelta, None] = None):
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(minutes=15)
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt
+
+
+async def get_current_user(token: str = Depends(oauth2_scheme)):
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        username: str = payload.get("sub")
+        if username is None:
+            raise credentials_exception
+        token_data = TokenData(username=username)
+    except JWTError:
+        raise credentials_exception
+    user = get_user(fake_users_db, username=token_data.username)
+    if user is None:
+        raise credentials_exception
+    return user
+
+
+async def get_current_active_user(current_user: User = Depends(get_current_user)):
+    if current_user.disabled:
+        raise HTTPException(status_code=400, detail="Inactive user")
+    return current_user
+
+
+@app.post("/token", response_model=Token)
+async def login_for_access_token(form_data: OAuth2PasswordRequestForm = Depends()):
+    user = authenticate_user(fake_users_db, form_data.username, form_data.password)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+    access_token_expires = timedelta(minutes=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"}
+
+
+@app.get("/users/me/", response_model=User)
+async def read_users_me(current_user: User = Depends(get_current_active_user)):
+    return current_user
+
+
+@app.get("/users/me/items/")
+async def read_own_items(current_user: User = Depends(get_current_active_user)):
+    return [{"item_id": "Foo", "owner": current_user.username}]
+
+
+@app.get("/")
+def read_root():
+    return {"Hello": "World"}
+
+
+@app.post("/api/mkdir/{path:path}")
+def mkdir(path: str):
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+    os.mkdir(f"{root}/{path}")
+    return {"path": path}
+
+
+@app.post("/api/move/{path:path}")
+def move(path: str):
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+    os.mkdir(f"{root}/{path}")
+    return {"path": path}
+
+
+@app.post("/api/copy/{path:path}")
+def copy(path: str):
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+    os.mkdir(f"{root}/{path}")
+    return {"path": path}
+
+
+@app.post("/api/delete/{path:path}")
+def delete(path: str):
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+    os.mkdir(f"{root}/{path}")
+    return {"path": path}
+
+
+@app.post("/api/rename/{path:path}")
+def rename(path: str):
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+    os.mkdir(f"{root}/{path}")
+    return {"path": path}
+
+
+# 上传文件之前先发送json数据，包括文件名，文件大小，文件类型，文件路径等信息
+@app.post("/api/preupload/{path:path}")
+def preupload(fileinfo: FileInfo, path: str):
+    # 判断磁盘空间是否足够，如果不够则返回错误信息
+    # 判断文件是否已经存在，如果存在则返回错误信息
+
+    return {"path": path}
+
+
+# 上传文件，实现断点续传功能？
+@app.post("/api/upload/{path:path}")
+async def create_upload_file(file: UploadFile, path: str):
+    contents = await file.read()
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+
+    with open(f"{root}/{path}/{file.filename}", "wb") as f:
+        f.write(contents)
+    return {"filename": file.filename}
+
+
+@app.get("/api/list/{path:path}")
+async def list(path: str, token: Annotated[str, Depends(oauth2_scheme)]):
+    print("token", token)
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+    return os.listdir(f"{root}/{path}")
+
+
+@app.get("/api/download/{path:path}")
+async def download(path: str):
+    if not os.path.exists(f"{root}/{path}"):
+        return {"error": "path not exists"}
+    return FileResponse(f"{root}/{path}")

server/main.py

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+# 实现用户登录等功能