我有一个简单的表单来注册和登录，使用firebase存储和验证。注册用户可以通过Firebase收到确认邮件。但未经验证的用户也可以登录，这里做错了什么。未经认证的用户也可以登录。

登录-page.component.ts

import { Component, OnInit } from '@angular/core'; 
import { FormBuilder, FormGroup, Validators, AbstractControl } from '@angular/forms'; 
import * as firebase from 'firebase'; 

@Component({ 
    selector: 'app-login-page', 
    templateUrl: './login-page.component.html', 
    styleUrls: ['./login-page.component.css'] 
}) 
export class LoginPageComponent implements OnInit { 
    signin:FormGroup; 
    constructor(private fb: FormBuilder) { 
    this.signin = fb.group({ 
     email : [null, Validators.compose([Validators.required, this.nospaceValidator])], 
     password : [null, Validators.required] 
    }); 
    } 

    ngOnInit() { 
    } 

signUp(){ 
    let values = this.signin.value; 
    console.log(values.email,values.password) 
    firebase.auth().createUserWithEmailAndPassword(values.email,values.password) 
    .then(
     function(user){ 
     if(user && user.emailVerified === false){ 
     user.sendEmailVerification() 
     .then(function(){ 
      console.log("email verification sent to user"); 
     }); 
     } 
    } 
    ) 
    .catch(
     function(error) { 
    var errorCode = error.code; 
    var errorMessage = error.message; 
    console.log(errorMessage) 
}); 
} 
signIn(){ 
firebase.auth().onAuthStateChanged(
    function(user) { 
    if (user.emailVerified) { 
    console.log('Email is verified'); 
    } 
    else { 
    console.log('Email is not verified'); 
    } 
}); 
} 
}