fib-session

Session middleware for fibjs

Install

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npm install fib-session [--save]

Test

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npm run ci

Creating a cookie-based session middleware

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var Session = require('fib-session')
var session = new Session(conn, opts);

var srv = new http.Server(8000, [
    session.cookie_filter, // use session ID via cookie
    {
        // routers
        '^/foo$': (r) => {
            var v = r.session.v;
        },
        ...
    }
]);

Creating a api session middleware

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var Session = require('fib-session')
var session = new Session(conn, opts);

var srv = new http.Server(8000, [
    session.api_filter, // use api session filter
    {
        // routers
        '^/foo$': (r) => {
            var v = r.session.v;
        },
        '^/get-token$': session.api_token
    }
]);

Both kv options and sesion options are in the same object.

kv-store options

session options

• session cache is used to keep session consistency among http requires.

• the timeout of session cache must be larger than its delay

• The client-side has only the session ID. The session is operated on the server-side.

Methods

session.setup()

setup the backend database.

v = session.cookie_filter

returns a cookie-based session filter.

session.api_filter

returns a header-based session filter.

session.api_token

returns an api handler that gets a new session ID.

JSON Web Token(JWT)

options

• see fib-jws https://github.com/fibjs/fib-jws
• set session_jwt_algo and session_jwt_key to enable JWT

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  // session_jwt_algo is encryption algorithms in fib-jws
  // session_jwt_key is to verify the signature. 
  var session = new Session(conn, { session_jwt_algo: 'HS256',  session_jwt_key: verify_key })
  

  Methods

  session.setTokenCookie

• set the JSON Web Token in cookie
• sign_key for signature, may be different from session_jwt_key, depending on the algorithm.
• according to JSON Web Token specification, one user session can only be called setTokenCookie once for set user session info. The second will throw an exception: new Error('Can't modify the JSON Web Token')
• default value r.session={}

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  // sign user info: { id: 12345, name: "Frank" }, and set the cookie
  // r is request
  session.setTokenCookie(r, { id: 12345, name: "Frank" }, sign_key)
  

  session.getToken

• get token for api filter mode, see session.api_filter

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  session.getToken ({ id: 12345, name: "Frank" }, sign_key)