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python/路飞项目/3-登录注册/2-多方式登录

2020-03-02

后台

插件
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>: pip install djangorestframework-jwt
urls.py
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path('login/', views.LoginViewSet.as_view({'post': 'login'})),
dev.py
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import datetime
JWT_AUTH = {
'JWT_EXPIRATION_DELTA': datetime.timedelta(days=7),
}
views.py
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from rest_framework.viewsets import ViewSet
from . import serializers, models
from utils.response import APIResponse
class LoginViewSet(ViewSet):
# 局部禁用认证、权限组件
authentication_classes = ()
permission_classes = ()

def login(self, request, *args, **kwargs):
serializer = serializers.LoginSerializer(data=request.data, context={'request': request})
if serializer.is_valid():
token = serializer.context.get('token')

# 原来要一个个拿信息
# username = serializer.context.get('username')
# icon = serializer.context.get('icon')

# 拿到登录用户,直接走序列化过程,将要返回给前台的数据直接序列化好给前台
user = serializer.context.get('user')
result = serializers.LoginSerializer(user, context={'request': request}).data
result['token'] = token # id,username,icon,token
return APIResponse(result=result)
return APIResponse(1, serializer.errors)
serializers.py
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from rest_framework import serializers
from rest_framework import exceptions
from django.conf import settings
from . import models

class LoginSerializer(serializers.ModelSerializer):
# 覆盖,避免login校验username有数据库唯一字段约束的限制
username = serializers.CharField()

class Meta:
model = models.User
# username、password可以通过局部钩子指定详细的校验规则
fields = ('id', 'username', 'password', 'icon')
extra_kwargs = {
'id': {
'read_only': True,
},
'icon': {
'read_only': True,
},
'password': {
'write_only': True,
}
}

def validate(self, attrs):
# 多方式得到user
user = self._get_user(attrs)
# user签发token
token = self._get_token(user)
# token用context属性携带给视图类
self.context['token'] = token

''' 自己将user的信息逐个处理,传给视图
# 前台可能不仅仅只需要登录成功的token,可能还需要用户名、用户头像等
self.context['username'] = user.username

# 通过请求头格式化icon
request = self.context['request']
icon = 'http://%s%s%s' % (request.META['HTTP_HOST'], settings.MEDIA_URL, user.icon)
self.context['icon'] = icon
'''
# 将登录用户对象直接传给视图
self.context['user'] = user

return attrs

def _get_user(self, attrs):
import re
username = attrs.get('username')
if re.match(r'^1[3-9][0-9]{9}$', username):
user = models.User.objects.filter(mobile=username).first()
else:
user = models.User.objects.filter(username=username).first()
if not user:
raise exceptions.ValidationError({'username': 'username error'})

password = attrs.get('password')
if not user.check_password(password):
raise exceptions.ValidationError({'password': 'password error'})

return user

def _get_token(self, user):
from rest_framework_jwt.serializers import jwt_payload_handler, jwt_encode_handler
payload = jwt_payload_handler(user)
token = jwt_encode_handler(payload)
return token

前台

Login.vue
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<template>
<div class="login">
<div class="box">
<i class="el-icon-close" @click="close_login"></i>
<div class="content">
<div class="nav">
<span :class="{active: login_method === 'is_pwd'}"
@click="change_login_method('is_pwd')">密码登录</span>
<span :class="{active: login_method === 'is_sms'}"
@click="change_login_method('is_sms')">短信登录</span>
</div>

<el-form v-if="login_method === 'is_pwd'">
<el-input
placeholder="用户名/手机号/邮箱"
prefix-icon="el-icon-user"
v-model="username"
clearable>
</el-input>
<el-input
placeholder="密码"
prefix-icon="el-icon-key"
v-model="password"
clearable
show-password>
</el-input>
<el-button type="primary" @click="login">登录</el-button>
</el-form>

<el-form v-if="login_method === 'is_sms'">
<el-input
placeholder="手机号"
prefix-icon="el-icon-phone-outline"
v-model="mobile"
clearable
@blur="check_mobile">
</el-input>
<el-input
placeholder="验证码"
prefix-icon="el-icon-chat-line-round"
v-model="sms"
clearable>
<template slot="append">
<span class="sms" @click="send_sms">{{ sms_interval }}</span>
</template>
</el-input>
<el-button type="primary">登录</el-button>
</el-form>

<div class="foot">
<span @click="go_register">立即注册</span>
</div>
</div>
</div>
</div>
</template>

<script>
export default {
name: "Login",
data() {
return {
username: '',
password: '',
mobile: '',
sms: '',
login_method: 'is_pwd',
sms_interval: '获取验证码',
is_send: false,
}
},
methods: {
close_login() {
this.$emit('close')
},
go_register() {
this.$emit('go')
},
change_login_method(method) {
this.login_method = method;
},
check_mobile() {
if (!this.mobile) return;
if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
this.$message({
message: '手机号有误',
type: 'warning',
duration: 1000,
onClose: () => {
this.mobile = '';
}
});
return false;
}
this.is_send = true;
},
send_sms() {

if (!this.is_send) return;
this.is_send = false;
let sms_interval_time = 60;
this.sms_interval = "发送中...";
let timer = setInterval(() => {
if (sms_interval_time <= 1) {
clearInterval(timer);
this.sms_interval = "获取验证码";
this.is_send = true; // 重新回复点击发送功能的条件
} else {
sms_interval_time -= 1;
this.sms_interval = `${sms_interval_time}秒后再发`;
}
}, 1000);
},

login() {
if (!(this.username && this.password)) {
this.$message({
message: '请填好账号密码',
type: 'warning',
duration: 1500
});
return false // 直接结束逻辑
}

this.$axios({
url: this.$settings.base_url + '/user/login/',
method: 'post',
data: {
username: this.username,
password: this.password,
}
}).then(response => {
let username = response.data.result.username;
let token = response.data.result.token;
let user_id = response.data.result.id;
this.$cookies.set('username', username, '7d');
this.$cookies.set('token', token, '7d');
this.$cookies.set('user_id', user_id, '7d');
this.$emit('success', response.data.result);
}).catch(error => {
}).catch(error => {
console.log(error.response.data)
})
}
}
}
</script>

<style scoped>
.login {
width: 100vw;
height: 100vh;
position: fixed;
top: 0;
left: 0;
z-index: 10;
background-color: rgba(0, 0, 0, 0.3);
}

.box {
width: 400px;
height: 420px;
background-color: white;
border-radius: 10px;
position: relative;
top: calc(50vh - 210px);
left: calc(50vw - 200px);
}

.el-icon-close {
position: absolute;
font-weight: bold;
font-size: 20px;
top: 10px;
right: 10px;
cursor: pointer;
}

.el-icon-close:hover {
color: darkred;
}

.content {
position: absolute;
top: 40px;
width: 280px;
left: 60px;
}

.nav {
font-size: 20px;
height: 38px;
border-bottom: 2px solid darkgrey;
}

.nav > span {
margin: 0 20px 0 35px;
color: darkgrey;
user-select: none;
cursor: pointer;
padding-bottom: 10px;
border-bottom: 2px solid darkgrey;
}

.nav > span.active {
color: black;
border-bottom: 3px solid black;
padding-bottom: 9px;
}

.el-input, .el-button {
margin-top: 40px;
}

.el-button {
width: 100%;
font-size: 18px;
}

.foot > span {
float: right;
margin-top: 20px;
color: orange;
cursor: pointer;
}

.sms {
color: orange;
cursor: pointer;
display: inline-block;
width: 70px;
text-align: center;
user-select: none;
}
</style>
Header.vue
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<template>
<div class="header">
<div class="slogan">
<p>老男孩IT教育 | 帮助有志向的年轻人通过努力学习获得体面的工作和生活</p>
</div>
<div class="nav">
<ul class="left-part">
<li class="logo">
<router-link to="/">
<img src="../assets/img/head-logo.svg" alt="">
</router-link>
</li>
<li class="ele">
<span @click="goPage('/free-course')" :class="{active: url_path === '/free-course'}">免费课</span>
</li>
<li class="ele">
<span @click="goPage('/actual-course')" :class="{active: url_path === '/actual-course'}">实战课</span>
</li>
<li class="ele">
<span @click="goPage('/light-course')" :class="{active: url_path === '/light-course'}">轻课</span>
</li>
</ul>

<div class="right-part">
<div v-if="!token">
<span @click="put_login">登录</span>
<span class="line">|</span>
<span @click="put_register">注册</span>
</div>
<div v-else>
<span>{{ username }}</span>
<span class="line">|</span>
<span @click="logout">注销</span>
</div>
</div>
</div>
<Login v-if="is_login" @close="close_login" @go="put_register" @success="success_login" />
<Register v-if="is_register" @close="close_register" @go="put_login" />
</div>
</template>

<script>
import Login from './Login'
import Register from "./Register"

export default {
name: "Header",
data() {
return {
url_path: sessionStorage.url_path || '/',
token: '',
username: '',
user_id: '',
is_login: false,
is_register: false,
}
},
methods: {
goPage(url_path) {
// 已经是当前路由就没有必要重新跳转
if (this.url_path !== url_path) {
this.$router.push(url_path);
}
sessionStorage.url_path = url_path;
},
put_login() {
this.is_login = true;
this.is_register = false;
},
put_register() {
this.is_login = false;
this.is_register = true;
},
close_login() {
this.is_login = false;
},
close_register() {
this.is_register = false;
},
success_login(data) {
this.is_login = false;
this.username = data.username;
this.token = data.token;
this.user_id = data.user_id;
},
logout() {
this.token = '';
this.username = '';
this.user_id = '';
this.$cookies.remove('username');
this.$cookies.remove('token');
this.$cookies.remove('user_id');
}
},
created() {
sessionStorage.url_path = this.$route.path;
this.url_path = this.$route.path;

// 检测cookies,查看登录状态
this.username = this.$cookies.get('username');
this.token = this.$cookies.get('token');
this.user_id = this.$cookies.get('user_id');
},
components: {
Login,
Register,
}
}
</script>

<style scoped>
.header {
background-color: white;
box-shadow: 0 0 5px 0 #aaa;
}

.header:after {
content: "";
display: block;
clear: both;
}

.slogan {
background-color: #eee;
height: 40px;
}

.slogan p {
width: 1200px;
margin: 0 auto;
color: #aaa;
font-size: 13px;
line-height: 40px;
}

.nav {
background-color: white;
user-select: none;
width: 1200px;
margin: 0 auto;

}

.nav ul {
padding: 15px 0;
float: left;
}

.nav ul:after {
clear: both;
content: '';
display: block;
}

.nav ul li {
float: left;
}

.logo {
margin-right: 20px;
}

.ele {
margin: 0 20px;
}

.ele span {
display: block;
font: 15px/36px '微软雅黑';
border-bottom: 2px solid transparent;
cursor: pointer;
}

.ele span:hover {
border-bottom-color: orange;
}

.ele span.active {
color: orange;
border-bottom-color: orange;
}

.right-part {
float: right;
}

.right-part .line {
margin: 0 10px;
}

.right-part span {
line-height: 68px;
cursor: pointer;
}
</style>
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