微博登录

WBLogin.js

const rp = require('request-promise');
const RSAKey = require('./WBPassword');
const Promise = require('promise');


// rp.debug = true;
/**
 * 微博的预先登录，用来获取微博的公钥
 * @param username 用户名
 */
function preLogin(username) {
    const su = new Buffer(username.replace('@', '%40')).toString('base64');
    return rp({
        url: 'https://login.sina.com.cn/sso/prelogin.php?client=ssologin.js(v1.4.18)', method: 'get',
        qs: {
            entry: 'homepage',
            su: su,
            rsakt: 'mod',
            checkpin: 1
        },
        json: true
    })
        .then(function (resp) {
            resp.su = su;
            return resp;
        })
}

const loginWB = function () {
    // 用来保存 cookie 的，登录成功或从 jar 里面获取 cookie
    this.jar = rp.jar();
    this.http = rp.defaults({ jar: this.jar });
}
/**
 * 登录完成后获取用户信息和 cookie
 */
loginWB.prototype.ticket = function (ticket) {
    return this.http({ uri: ticket, resolveWithFullResponse: true });
};
/**
 * 登录微博
 * @param preLoginResult 预先登录的返回值
 * @param password 密码
 */
loginWB.prototype.doLogin = function (preLoginResult, password) {
    const key = new RSAKey();
    key.setPublic(preLoginResult.pubkey, '10001');
    const options = {
        json: true,
        url: 'http://login.sina.com.cn/sso/login.php?client=ssologin.js(v1.4.18)&_=1484102991785',
        method: 'POST',
        gzip: true,
        headers: {
            'Host': 'login.sina.com.cn',
            'Origin': 'http://www.sina.com.cn',
            referer: 'http://login.sina.com.cn/signup/signin.php?entry=sso'
        },
        form: {
            entry: 'weibo',
            gateway: 1,
            from: '',
            savestate: 30,
            useticket: 0,
            pagerefer: '',
            pcid: preLoginResult.pcid,
            door: captcha ? captcha.result : '',
            vsnf: 1,
            su: preLoginResult.su,
            service: 'miniblog',
            servertime: preLoginResult.servertime,
            nonce: preLoginResult.nonce,
            pwencode: 'rsa2',
            rsakv: preLoginResult.rsakv,
            sp: key.encrypt([preLoginResult.servertime, preLoginResult.nonce].join("\t") + "\n" + password),
            sr: '1280*800',
            encoding: 'UTF-8',
            prelt: 46,
            cdult: 3,
            returntype: 'TEXT'
        }
    };
    const self = this;
    return this.http(options)
        .then(function (resp) {
            const code = resp.retcode;
            if (code !== '0') {
                if (code === '4049') {
                    return Promise.reject("需要验证码");
                }
                // 101 用户名错误，2070 验证码不正确
                if (code === '2070') {
                    return Promise.reject("验证码错误");
                }
                return Promise.reject(resp.reason);
            }
            return resp;
        })
        .then(function (resp) {
            const urlList = resp.crossDomainUrlList;
            if (urlList.length > 0) {
                return self.ticket(urlList[0]);
            }
            return Promise.reject("登录失败");
        })
}
loginWB.prototype.login = function (username, password) {
    const self = this;
    return preLogin(username)
        .then(function (res) {
            return self.doLogin(res, password)
        })
        .then(function (res) {
            var body = res.body;
            body = body.replace(/\(|\);/g, '');
            body = JSON.parse(body);
            // console.log('body', self.jar);
            var cookies = self.jar.getCookieString('http://weibo.com');
            cookies += '; ' + self.jar.getCookieString('http://sina.com.cn');
            console.log('cookies', cookies);
            body.cookies = cookies;
            return body
        });
}
new loginWB().login('18574395060', 'cfQJrnJEpDC84kG')
    .done()