22-注册、登录、验证登录

验证登录

一、验证后端是否登录

1、在项目中的应用层文件夹下，创建一个名为utils的python package包，然后创建名为mixin_utils的py文件，文件的代码是：

from django.contrib.auth.decorators import login_required
from django.utils.decorators import method_decorator

class LoginRequiredMixin(object):
    """
    检查是否登录
    """
    @method_decorator(login_required(login_url="/login/"))
    def dispatch(self,request,*args,**kwargs):
        return super(LoginRequiredMixin, self).dispatch(request,*args,**kwargs)

2、在需要验证的应用view.py的视图层下，先导入验证登录的类，然后继承这个类：

from django.views.generic.base import View


from utils.mixin_utils import LoginRequiredMixin


class UserInfoView(LoginRequiredMixin,View):
    """
    用户个人信息,必须登录才能访问
    """
    def get(self,request):
        return render(request,"usercenter-info.html",{})

3、在应用层下配置好用户信息的url路径：

from django.conf.urls import url,include
from .views import UserInfoView



urlpatterns = [
    #用户信息列表页
    url(r'^info/$', UserInfoView.as_view(), name="user_info"),
]

4、在项目层下配置好路由

from django.conf.urls import url,include



urlpatterns = [
    # 用户信息路由分发
    url(r'^users/', include("users.urls", namespace="users")),
]

二、验证前端是否登录，如果登录根据不同逻辑展现不同信息：

{% if request.user.is_authenticated %}
                <div class="top">
                <div class="wp">
                    <div class="fl"><p>服务电话：<b>33333333</b></p></div><div class="personal">
                            <dl class="user fr">
                                <dd>{{ request.user.nick_name }}<img class="down fr" src="/static/images/top_down.png"/></dd>
                                <dt><img width="20" height="20" src="{{ MEDIA_URL }}{{ request.user.image }}"/></dt>
                            </dl>
                            <div class="userdetail">
                                <dl>
                                    <dt><img width="80" height="80" src="{{ MEDIA_URL }}{{ request.user.image }}"/></dt>
                                    <dd>
                                        <h2>用户名</h2>
                                        <p>{{ request.user.username }}</p>
                                    </dd>
                                </dl>
                                <div class="btn">
                                    <a class="personcenter fl" href="{% url "users:user_info" %}">进入个人中心</a>
                                    <a class="fr" href="/logout/">退出</a>
                                </div>
                            </div>
                    </div>
                </div>
            </div>
                {% else %}
                <div class="top">
                    <div class="wp">
                        <div class="fl"><p>服务电话：<b>33333333</b></p></div>
                    <!--登录后跳转-->

                             <a style="color:white" class="fr registerbtn" href="/register/">注册</a>
                             <a style="color:white" class="fr loginbtn" href="/login/">登录</a>

                    </div>
                </div>
            {% endif %}

三、注册和登录逻辑

1、路由分发

from django.conf.urls import url,include


from users.views import LoginView,RegisterView


urlpatterns = [
　　#登录路由
    url(r'^login/$', LoginView.as_view(),name="login"),
　　#注册路由
    url(r'^register/$', RegisterView.as_view(),name="register"),
]

在应用层users的视图view.py下的视图类：

from utils.email_send import send_register_email

from .models import UserProfile,EmailVerifyRecord

from .forms import LoginForm,RegisterForm



class RegisterView(View):
    def get(self,request):
        register_form = RegisterForm()
        return render(request, "register.html", {"register_form":register_form})
    def post(self,request):
        register_form = RegisterForm(request.POST)
        if register_form.is_valid():
            user_name = request.POST.get("email","")
            pass_word = request.POST.get("password","")
            if UserProfile.objects.get(email=user_name):
                return render(request, "register.html", {"msg": "此账号已经激活！","register_form":register_form})
            user_profile = UserProfile()
            user_profile.is_active = False
            user_profile.username = user_name
            user_profile.email = user_name
            user_profile.password = make_password(pass_word)
            user_profile.save()
            send_register_email(user_name,"register")
            return render(request, "login.html")
        else:
            return render(request, "register.html",{"register_form":register_form})

class LoginView(View):
    def get(self,request):
        return render(request, "login.html", {})
    def post(self,request):
        login_form = LoginForm(request.POST)
        if login_form.is_valid():
            user_name = request.POST.get("username", "")
            pass_word = request.POST.get("password", "")
            # 然后验证账号密码
            user = authenticate(username=user_name, password=pass_word)
            if user is not None:
                if user.is_active:
                    login(request, user)
                    return render(request, "index.html")
                else:
                    return render(request, "login.html",{"msg":"未激活状态！"})
            else:
                return render(request, "login.html", {"msg": "用户名或密码错误！"})
        else:
            return render(request, "login.html", {"login_form":login_form})

前端表单传到后端的字段要和后端匹配：

在应用users下的forms.py文件表单验证代码：

from django import forms
from captcha.fields import CaptchaField

from .models import UserProfile


class LoginForm(forms.Form):
    username = forms.CharField(required=True,min_length=6)
    password = forms.CharField(required=True,min_length=6)


class RegisterForm(forms.Form):
    email = forms.EmailField(required=True)
    password = forms.CharField(required=True,min_length=6)
    captcha = CaptchaField(error_messages={"invalid":u"验证码错误"})

在utils文件下的email_send.py的代码：

from random import Random
from django.core.mail import send_mail

from users.models import EmailVerifyRecord
from MxOnline.settings import EMAIL_FROM

def random_str(randomlength=8):
    str = ""
    chars = "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz0123456789"
    length = len(chars)-1
    random = Random()
    for i in range(randomlength):
        str += chars[random.randint(0,length)]
    return str


def send_register_email(email,send_type="register"):
    email_record = EmailVerifyRecord()
    if send_type == "update_email":
        code = random_str(4)
    else:
        code = random_str(16)
    email_record.code = code
    email_record.email = email
    email_record.send_type = send_type
    email_record.save()

    send_title = ""
    send_body = ""
    if send_type == "register":
        send_title = "慕学在线网注册激活链接"
        send_body = "请点击下面链接激活你的账号：http://127.0.0.1:8000/active/{0}".format(code)

        send_status = send_mail(send_title,send_body,EMAIL_FROM,[email])
        if send_status:
            pass
    elif send_type == "forget":
        send_title = "慕学在线网重置密码链接"
        send_body = "请点击下面链接重置你的密码：http://127.0.0.1:8000/reset/{0}".format(code)

        send_status = send_mail(send_title, send_body, EMAIL_FROM, [email])
        if send_status:
            pass
    elif send_type == "update_email":
        send_title = "慕学在线网邮箱修改链接"
        send_body = "你的邮箱验证码为：{0}".format(code)

        send_status = send_mail(send_title, send_body, EMAIL_FROM, [email])
        if send_status:
            pass

在项目设置文件中的邮箱设置代码：

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = "smtp.163.com"
EMAIL_PORT = 25
EMAIL_HOST_USER = "mxonline123@163.com"
EMAIL_HOST_PASSWORD = "lishuntao110"
EMAIL_USE_TLS = False
EMAIL_FROM = "mxonline123@163.com"