views.py 文件源码

def get_next_page(self):
        if self.next_page is not None:
            next_page = resolve_url(self.next_page)
        elif settings.LOGOUT_REDIRECT_URL:
            next_page = resolve_url(settings.LOGOUT_REDIRECT_URL)
        else:
            next_page = self.next_page

        if (self.redirect_field_name in self.request.POST or
                self.redirect_field_name in self.request.GET):
            next_page = self.request.POST.get(
                self.redirect_field_name,
                self.request.GET.get(self.redirect_field_name)
            )
            url_is_safe = is_safe_url(
                url=next_page,
                allowed_hosts=self.get_success_url_allowed_hosts(),
                require_https=self.request.is_secure(),
            )
            # Security check -- Ensure the user-originating redirection URL is
            # safe.
            if not url_is_safe:
                next_page = self.request.path
        return next_page