passport-weixin
General-purpose weixin authentication strategy for Passport.
This module lets you authenticate using weixin in your Node.js applications. By plugging into Passport, weixin authentication can be easily and unobtrusively integrated into any application or framework that supports Connect-style middleware, including Express.
Note that this strategy provides generic weixin support. In many cases, a provider-specific strategy can be used instead, which cuts down on unnecessary configuration, and accommodates any provider-specific quirks.
Developers who need to implement authentication against an weixin provider that is not already supported are encouraged to sub-class this strategy. If you choose to open source the new provider-specific strategy, please add it to the list so other people can find it.
Install
$ npm install passport-weixin
Usage
Configure Strategy
The weixin authentication strategy authenticates users using a third-party
account and weixin tokens. The provider's weixin endpoints, as well as
the client identifer and secret, are specified as options. The strategy
requires a verify callback, which receives an access token and profile,
and calls done providing a user.
var wechatOAuth =require('wechat').OAuth; var oauth=new wechatOAuth(exports.appId, exports.appSecret, getOAuthToken, saveOAuthToken); var _oauthtoken; function saveOAuthToken(openid, token, callback) { _oauthtoken=token; callback(null, _accesstoken); }; function getOAuthToken(openid, callback) { callback(null, _oauthtoken); };
passport.use('weixin', new WeixinStrategy({callbackURL:authCallbackUrl, appId:appId, appSecret:appSecret}, function(accessToken, refreshToken, result, profile, done) {//result:{access_token, expires_in, openid, scope} result.create_at=new Date().getTime(); saveOAuthToken(result, function(err) { if (err) return done(err); oauth.getUser(result.openid, function(err, weixinUser) { done(null, weixinUser); }); }); } ));
Authenticate Requests
Use passport.authenticate(), specifying the 'weixin' strategy, to
authenticate requests.
For example, as route middleware in an Express application:
app.get('/tasks', ensureAuthenticated, getSameUI); ensureAuthenticated=function(req, res, next) { if (req.isAuthenticated()) { return next(); } console.log('user ensureAuthenticated by '+req.url); req.session = req.session || {}; req.session.authPreUrl=req.url; req.session.authState = crypto.createHash('sha1').update(-(new Date())+'').digest('hex'); passport.authenticate('weixin', { scope:'snsapi_userinfo', state: req.session.authState })(req, res, next); };
app.get('/oauth2/weixin', oauth2CallbackWeixin); oauth2CallbackWeixin=function(req, res, next) { if(req.session && req.session.authState && req.session.authState===req.query.state) { passport.authenticate('weixin', {successRedirect:req.session.authPreUrl})(req, res, next); } else { return next(new Error('user Auth State Mismatch')); } };
Related Modules
- passport-oauth1 — OAuth 1.0 authentication strategy
- passport-http-bearer — Bearer token authentication strategy for APIs
- OAuth2orize — OAuth 2.0 authorization server toolkit
Tests
$ npm install
$ npm test
Credits
License
Copyright (c) 2011-2014 Ming Xu