login with captcha

groups/forms.py

@@ -1,6 +1,7 @@
 from django import forms
-
+from captcha.fields import CaptchaField
 
 class GroupsForm(forms.Form):
     username = forms.CharField(label="用户名", max_length=128, widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': "Username",'autofocus': ''}))
     password = forms.CharField(label="密码", max_length=256, widget=forms.PasswordInput(attrs={'class': 'form-control','placeholder': "Password"}))
+    captcha = CaptchaField(label='验证码', error_messages={"invalid":"验证码错误"})

groups/templates/groups/login.html

@@ -15,8 +15,10 @@
     <div class="container">
             <div class="col">
               <form class="form-login" action="/groups/login/" method="post">
-                  {% if message %}
-                    <div class="alert alert-warning">{{ message }}</div>
+                  {% if groups_form.captcha.errors %}
+                        <div class="alert alert-warning">{{ groups_form.captcha.error_messages }}</div>
+                  {% elif message %}
+                        <div class="alert alert-warning">{{ message }}</div>
                   {% endif %}
                   {% csrf_token %}
                   <h3 class="text-center">欢迎登录</h3>
@@ -28,6 +30,10 @@
                   {{ groups_form.password.label_tag }}
                   {{ groups_form.password }}
                 </div>
+                  <div class="form-group">
+                    {{ groups_form.captcha.label_tag }}
+                    {{ groups_form.captcha }}
+                  </div>
                 <div>
                    <button type="submit" class="btn btn-primary float-right">登录</button>
                 </div>
@@ -43,3 +49,12 @@
 
   </body>
 </html>
+<script>
+$('.captcha').click(function () {
+
+    $.getJSON("/groups/refresh_captcha/", function (result) {
+        $('.captcha').attr('src', result['image_url']);
+        $('#id_captcha_0').val(result['key'])
+    });
+});
+</script>

groups/urls.py

@@ -1,4 +1,5 @@
 from django.urls import path
+from django.urls import include
 from . import views
 
 urlpatterns = [
@@ -6,5 +7,6 @@ urlpatterns = [
     path('index/', views.index, name='index'),
     path('login/', views.login, name='login'),
     path('logout/', views.logout, name='logout'),
-
+    path('captcha/', include('captcha.urls')),
+    path('refresh_captcha/', views.refresh_captcha),
 ]

groups/views.py

@@ -45,3 +45,14 @@ def logout(request):
         return redirect('/groups/login')
     request.session.flush()
     return redirect('/groups/login')
+
+import json
+from captcha.models import CaptchaStore
+from captcha.helpers import captcha_image_url
+def refresh_captcha(request):
+    hashkey = CaptchaStore.generate_key()
+    image_url = captcha_image_url(hashkey)
+    return HttpResponse(json.dumps({'key': hashkey, 'image_url': image_url}), content_type='application/json')
+
+
+

mysite/settings.py

@@ -39,6 +39,7 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
     'safesite',
     'groups',
+    'captcha',
 ]
 
 MIDDLEWARE = [

safesite/migrations/0268_merge_20191009_0952.py

@@ -0,0 +1,15 @@
+# Generated by Django 2.1.4 on 2019-10-09 09:52
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('safesite', '0265_auto_20190917_1716'),
+        ('safesite', '0267_auto_20190917_1543'),
+        ('safesite', '0265_companyinfo'),
+    ]
+
+    operations = [
+    ]