Sanic十五：Sanic + pyjwt 实现token验证

 

安装pyjwt：pip install pyjwt

 

pyjwt的使用，主要是一个加密，一个解密

 

token校验代码

 

在视图中使用

 

1、登录，获取token

 

2、用token请求需校验token的接口

 

auth：

from functools import wraps

import jwt
from sanic import text


def check_token(request):
    """ 校验token是否有效 """
    try:
        jwt.decode(request.headers.get('token'), request.app.config.SECRET, algorithms=["HS256"])
    except jwt.exceptions.InvalidTokenError:
        return False
    else:
        return True


def login_required(wrapped):
    """ token校验装饰器 """

    def decorator(f):
        @wraps(f)
        async def decorated_function(request, *args, **kwargs):
            is_authenticated = check_token(request)

            if is_authenticated:
                response = await f(request, *args, **kwargs)
                return response
            else:
                return text("token无效", 401)

        return decorated_function

    return decorator(wrapped)

 

main：

import jwt
from sanic import Sanic, text

from auth import login_required

app = Sanic("AuthApp")
app.config.SECRET = "KEEP_IT_SECRET_KEEP_IT_SAFE"


@app.post("/login")
async def login(request):
    token = jwt.encode(request.json, request.app.config.SECRET)
    return text(token)


@app.get("/secret")
@login_required
async def secret(request):
    return text("已登录，可继续操作")


if __name__ == '__main__':
    import uvicorn

    uvicorn.run('main:app', host='0.0.0.0', port=8000, debug=True)

 

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