[Feature] 添加功能，密码过期间隔时间配置，检测用户密码过期 (#2043)

* [Update] user model 添加date_password_last_updated字段, 并在用户详情/个人信息页进行展示、重置密码/修改密码时进行更新；安全设置添加密码过期时间配置项;

* [Update] 修改依赖，deb_requirements 删除 gcc automake

* [Update] 添加定时任务: 检测用户密码是否过期

* [Update] 登录页面添加检测用户密码是否过期，并给出过期提示，拒绝登录

* [update] 用户密码过期时间5天以内，每天发送重置密码邮件

* [Update] api 登录认证，添加密码过期检测

* [Update] 添加提示用户密码即将过期信息

* [Update] 修改小细节

* [Update] User model 添加密码即将过期/已过期 property属性

* [Update] 修改用户api auth检测用户密码过期逻辑

* [Update] 添加翻译，用户密码过期

* [Update] 用户密码即将过期，发送密码过期提醒邮件

* [Update] 修改检测用户密码过期任务，修改interval为crontab

* [Update] 修改翻译小细节

* [Update] 修改翻译小细节

* [Bugfix] 修复在用户更新页面修改密码时, 不更新最后密码修改时间的bug

* [Update] 修复小细节

* [Update] 修改系统设置成功提示翻译信息

apps/users/utils.py

@@ -16,6 +16,7 @@ from django.contrib.auth.mixins import UserPassesTestMixin
 from django.contrib.auth import authenticate
 from django.utils.translation import ugettext as _
 from django.core.cache import cache
+from datetime import datetime
 
 from common.tasks import send_mail_async
 from common.utils import reverse, get_object_or_none
@@ -109,6 +110,44 @@ def send_reset_password_mail(user):
     send_mail_async.delay(subject, message, recipient_list, html_message=message)
 
 
+def send_password_expiration_reminder_mail(user):
+    subject = _('Security notice')
+    recipient_list = [user.email]
+    message = _("""
+    Hello %(name)s:
+    </br>
+    Your password will expire in %(date_password_expired)s,
+    </br>
+    For your account security, please click on the link below to update your password in time
+    </br>
+    <a href="%(update_password_url)s">Click here update password</a>
+    </br>
+    If your password has expired, please click 
+    <a href="%(forget_password_url)s?email=%(email)s">Password expired</a> 
+    to apply for a password reset email.
+
+    </br>
+    ---
+
+    </br>
+    <a href="%(login_url)s">Login direct</a>
+
+    </br>
+    """) % {
+        'name': user.name,
+        'date_password_expired': datetime.fromtimestamp(datetime.timestamp(
+            user.date_password_expired)).strftime('%Y-%m-%d %H:%M'),
+        'update_password_url': reverse('users:user-password-update', external=True),
+        'forget_password_url': reverse('users:forgot-password', external=True),
+        'email': user.email,
+        'login_url': reverse('users:login', external=True),
+    }
+    if settings.DEBUG:
+        logger.debug(message)
+
+    send_mail_async.delay(subject, message, recipient_list, html_message=message)
+
+
 def send_reset_ssh_key_mail(user):
     subject = _('SSH Key Reset')
     recipient_list = [user.email]