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import smtplib
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from django.conf import settings
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from django.core.exceptions import PermissionDenied
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from django.core.mail import send_mass_mail, send_mail
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from django.http import HttpResponseBadRequest, HttpResponse
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from django.shortcuts import *
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from django.utils.html import strip_tags
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from django.views.generic import View
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def get_page_list(paginator, page):
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"""
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分页逻辑
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if 页数>=10:
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当前页<=5时，起始页为1
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当前页>(总页数-5)时，起始页为(总页数-9)
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其他情况 起始页为(当前页-5)
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"""
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page_list = []
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if paginator.num_pages > 10:
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if page.number <= 5:
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start_page = 1
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elif page.number > paginator.num_pages - 5:
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start_page = paginator.num_pages - 9
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else:
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start_page = page.number - 5
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for i in range(start_page, start_page + 10):
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page_list.append(i)
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else:
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for i in range(1, paginator.num_pages + 1):
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page_list.append(i)
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return page_list
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def ajax_required(f):
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"""Not a mixin, but a nice decorator to validate than a request is AJAX"""
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def wrap(request, *args, **kwargs):
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if not request.is_ajax():
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return HttpResponseBadRequest()
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return f(request, *args, **kwargs)
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wrap.__doc__ = f.__doc__
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wrap.__name__ = f.__name__
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return wrap
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def send_html_email(subject, html_message, to_list):
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plain_message = strip_tags(html_message)
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from_email = settings.EMAIL_HOST_USER
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send_mail(subject, plain_message, from_email, to_list, html_message=html_message)
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def send_email(subject, content, to_list):
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"""
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Example:
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subject = 'test subject'
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content = 'hello, this is content'
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to_list = ['abc@qq.com','abcd@163.com']
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send_email(subject, content, to_list)
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"""
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try:
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message = (subject, content, settings.EMAIL_HOST_USER, to_list)
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# do not forget set password
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print("--> is sending email")
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send_mass_mail((message,))
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except smtplib.SMTPException :
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print("--> send fail")
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return HttpResponse("fail")
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else:
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print("--> send success")
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return HttpResponse("success")
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class AuthorRequiredMixin(View):
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def dispatch(self, request, *args, **kwargs):
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obj = self.get_object()
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if obj != self.request.user:
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raise PermissionDenied
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return super().dispatch(request, *args, **kwargs)
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class AdminUserRequiredMixin(View):
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"""
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管理员拦截器
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"""
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def dispatch(self, request, *args, **kwargs):
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if not self.request.user.is_staff:
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return redirect('myadmin:login')
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return super().dispatch(request, *args, **kwargs)
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class SuperUserRequiredMixin(View):
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"""
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超级用户拦截器
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"""
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def dispatch(self, request, *args, **kwargs):
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if not self.request.user.is_superuser:
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return HttpResponse('无权限')
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return super().dispatch(request, *args, **kwargs)
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