[Update] 用户登录失败次数提示

apps/authentication/forms.py

@@ -5,6 +5,8 @@ from django import forms
 from django.contrib.auth.forms import AuthenticationForm
 from django.utils.translation import gettext_lazy as _
 from captcha.fields import CaptchaField
+from django.conf import settings
+from users.utils import get_login_failed_count
 
 
 class UserLoginForm(AuthenticationForm):
@@ -16,10 +18,18 @@ class UserLoginForm(AuthenticationForm):
 
     error_messages = {
         'invalid_login': _(
-            "Please enter a correct username and password. Note that both "
-            "fields may be case-sensitive."
+            "The username or password you entered is incorrect, "
+            "please enter it again."
         ),
         'inactive': _("This account is inactive."),
+        'limit_login': _(
+            "You can also try {times_try} times "
+            "(The account will be temporarily locked for {block_time} minutes)"
+        ),
+        'block_login': _(
+            "The account has been locked "
+            "(please contact admin to unlock it or try again after {} minutes)"
+        )
     }
 
     def confirm_login_allowed(self, user):
@@ -28,6 +38,25 @@ class UserLoginForm(AuthenticationForm):
                 self.error_messages['inactive'],
                 code='inactive',)
 
+    def get_limit_login_error_message(self, username, ip):
+        times_up = settings.SECURITY_LOGIN_LIMIT_COUNT
+        times_failed = get_login_failed_count(username, ip)
+        times_try = int(times_up) - int(times_failed)
+        block_time = settings.SECURITY_LOGIN_LIMIT_TIME
+        if times_try <= 0:
+            error_message = self.error_messages['block_login']
+            error_message = error_message.format(block_time)
+        else:
+            error_message = self.error_messages['limit_login']
+            error_message = error_message.format(
+                times_try=times_try, block_time=block_time,
+            )
+        return error_message
+
+    def add_limit_login_error(self, username, ip):
+        error = self.get_limit_login_error_message(username, ip)
+        self.add_error('password', error)
+
 
 class UserLoginCaptchaForm(UserLoginForm):
     captcha = CaptchaField()

apps/authentication/templates/authentication/login.html

@@ -58,6 +58,7 @@
                             {% else %}
                                 <p class="red-fonts">{{ form.non_field_errors.as_text }}</p>
                             {% endif %}
+                            <p class="red-fonts">{{ form.errors.password.as_text }}</p>
                         {% endif %}
 
                         <div class="form-group">
@@ -78,10 +79,11 @@
                         {% endif %}
 
                         <div class="text-muted text-center">
-                        <div>
-                            <a href="{% url 'users:forgot-password' %}">
-                                <small>{% trans 'Forgot password' %}?</small>
-                            </a>
+                            <div>
+                                <a href="{% url 'users:forgot-password' %}">
+                                    <small>{% trans 'Forgot password' %}?</small>
+                                </a>
+                            </div>
                         </div>
 
                         {% if AUTH_OPENID %}

apps/authentication/templates/authentication/new_login.html

@@ -72,9 +72,10 @@
                             <div class="contact-form col-md-10" style="margin-top: 10px;height: 35px">
                                 <form id="contact-form" action="" method="post" role="form" novalidate="novalidate">
                                     {% csrf_token %}
-                                    <div style="height: 45px;color: red;line-height: 17px;">
+                                    <div style="height: 70px;color: red;line-height: 17px;">
                                         {% if block_login %}
                                             <p class="red-fonts">{% trans 'Log in frequently and try again later' %}</p>
+                                            <p class="red-fonts">{{ form.errors.password.as_text }}</p>
                                         {% elif password_expired %}
                                             <p class="red-fonts">{% trans 'The user password has expired' %}</p>
                                         {% elif form.errors %}
@@ -83,6 +84,7 @@
                                             {% else %}
                                                 <p class="red-fonts">{{ form.non_field_errors.as_text }}</p>
                                             {% endif %}
+                                            <p class="red-fonts">{{ form.errors.password.as_text }}</p>
                                         {% endif %}
                                     </div>
 

apps/authentication/views/login.py

@@ -100,6 +100,7 @@ class UserLoginView(FormView):
         # limit user login failed count
         ip = get_request_ip(self.request)
         increase_login_failed_count(username, ip)
+        form.add_limit_login_error(username, ip)
         # show captcha
         cache.set(self.key_prefix_captcha.format(ip), 1, 3600)
         self.send_auth_signal(success=False, username=username, reason=reason)

apps/users/utils.py

@@ -299,6 +299,12 @@ def increase_login_failed_count(username, ip):
     cache.set(key_limit, count, int(limit_time)*60)
 
 
+def get_login_failed_count(username, ip):
+    key_limit = key_prefix_limit.format(username, ip)
+    count = cache.get(key_limit, 0)
+    return count
+
+
 def clean_failed_count(username, ip):
     key_limit = key_prefix_limit.format(username, ip)
     key_block = key_prefix_block.format(username)
@@ -307,9 +313,8 @@ def clean_failed_count(username, ip):
 
 
 def is_block_login(username, ip):
-    key_limit = key_prefix_limit.format(username, ip)
+    count = get_login_failed_count(username, ip)
     key_block = key_prefix_block.format(username)
-    count = cache.get(key_limit, 0)
 
     limit_count = settings.SECURITY_LOGIN_LIMIT_COUNT
     limit_time = settings.SECURITY_LOGIN_LIMIT_TIME