index.js

var querystring = require('querystring'),
  Oauth = require('oauth');

/*
 * @ NodeWeiboTwitter
 * ----------------------------------
 * - Factory w singleton
 * - var twitter = NodeWeiboTwitter.create("twitter", options); twitter.getTweet()
 */
var NodeWeiboTwitter = {
  TYPE2API: {
    "weibo":   Weibo,
    "twitter": Twitter
  },

  create: function (type, options) {
    var API = this.TYPE2API[type];
    if (!API) {
      throw new TypeError(type + " is not supported");
    }
    if (!options.consumer_key || !options.consumer_secret) {
      throw new TypeError("appKey or appSecret is not set");
    }
    if (!options.access_token_key) {
      throw new TypeError("appKey or appSecret is not set");
    }

    return new API(options);
  }
};

/*
 * @ Weibo
 * ----------------------------------
 * - How to get Weibo access_token - read README
 */
function Weibo(options) {
  this.oauth = new Oauth.OAuth2(
    options.consumer_key,
    options.consumer_secret,
    "https://api.weibo.com/",
    "oauth2/authorize",
    "oauth2/access_token"
  );
  if (!options.access_token_key) {
    throw new TypeError("accessTokenKey is needed for Weibo");
  } else {
    this.accessTokenKey = options.access_token_key;
  }
}

Weibo.prototype = {
  //TODO: As of 2.0, weibo stop supporting get weibo by screenName service, only allow return user's own weibo
  //http://open.weibo.com/wiki/2/statuses/user_timeline
  getWeibo: function (screenName, count, cb) {
    if (!screenName) {
      throw new TypeError("screenName is not set");
    }
    if (!count) {
      count = 10;
    }
    if (!cb) {
      cb = function () {
      };
    }
    var api = "https://api.weibo.com/2/statuses/home_timeline.json?trim_user=true&screen_name=" + screenName + "&count=" + count,
      header = {"User-Agent": "node-weibo-twitter"};
    this.oauth._request("GET", api, header, "", this.accessTokenKey, this._weiboCallbackWrapper(cb));
  },

  postWeibo: function (msg, cb) {
    if (!cb) {
      cb = function () {};
    }
    var api = "https://api.weibo.com/2/statuses/update.json",
      header = {"Content-Type": "application/x-www-form-urlencoded"},
      data = {status: msg};
    data = querystring.stringify(data);
    this.oauth._request(
      "POST",
      api,
      header,
      data,
      this.accessTokenKey,
      this._weiboCallbackWrapper(cb)
    );
  },

  _weiboCallbackWrapper: function (cb) {
    return function (err, data, response) {
      if (err) {
        console.log(err);
        return;
      }
      var result;
      try {
        result = JSON.parse(data);
      } catch (e) {
        console.log(e);
        return;
      }
      cb(null, result, response);
    };
  }
};

/*
 * @ Twitter
 * ----------------------------------
 * - https://dev.twitter.com/docs/api/1.1
 */
function Twitter(options) {
  this.oauth = new Oauth.OAuth(
    "https://api.twitter.com/oauth/request_token",
    "https://api.twitter.com/oauth/access_token",
    options.consumer_key,
    options.consumer_secret,
    '1.0A',
    null,
    'HMAC-SHA1'
  );

  this.accessTokenKey = options.access_token_key;
  this.accessTokenSecret = options.access_token_secret;
}

Twitter.prototype = {
  getTweet: function (screenName, count, cb) {
    if (!count) {
      count = 10;
    }
    var api = "https://api.twitter.com/1.1/statuses/user_timeline.json?trim_user=true&exclude_replies=true&screen_name=" + screenName + "&count=" + count;
    this.oauth.get(
      api,
      this.accessTokenKey,
      this.accessTokenSecret,
      cb
    );
  },

  postTweet: function (msg, cb) {
    var api = "https://api.twitter.com/1.1/statuses/update.json";
    this.oauth.post(
      api,
      this.accessTokenKey,
      this.accessTokenSecret,
      {"status": msg},
      cb
    );
  },

  postDM: function (screenName, msg, cb) {
    if (!screenName) {
      throw new TypeError("screenName is not set");
    }
    var api = "https://api.twitter.com/1.1/direct_messages/new.json";
    this.oauth.post(
      api,
      this.accessTokenKey,
      this.accessTokenSecret,
      {
        "screen_name": screenName,
        "text": msg
      },
      cb
    );
  }
};

module.exports = NodeWeiboTwitter;