dc/src/pages/login/index.js

import React from 'react'
import { login } from '@/apis'
import router from 'umi/router'

function getQueryString(name) {
  const reg = new RegExp(`(^|&)${name}=([^&]*)(&|$)`);
  const r = window.location.search.substr(1).match(reg);
  if (r != null) return unescape(r[2]); return '';
}

class LoginPage extends React.PureComponent {
  toLoginPage () {
    window.location.href = `https://login.weipaitang.com/wechatLogin?loginUrl=${window.locationn.host}/login`
  }

  async doLogin (token) {
    const redirect = getQueryString('redirect');
    const { code } = await login({ token, redirect, domain: window.location.hostname })
    if (code === 0) {
      router.push('/')
    } else {
      this.toLoginPage()
    }
  }

  async componentDidMount () {
    const token = this.props.location.query.token
    if (token) {
      await this.doLogin(token)
    } else {
      this.toLoginPage()
    }
  }

  render () {
    return <div></div>
  }
}

export default LoginPage