|
|
# bjy: 导入日志、操作系统和UUID模块
|
|
|
import logging
|
|
|
import os
|
|
|
import uuid
|
|
|
|
|
|
# bjy: 从Django中导入设置、分页器、HTTP响应、快捷函数、静态文件、时区、国际化、CSRF豁免和基于类的视图
|
|
|
from django.conf import settings
|
|
|
from django.contrib.auth.decorators import login_required
|
|
|
from django.core.paginator import Paginator
|
|
|
from django.http import HttpResponse, HttpResponseForbidden, JsonResponse
|
|
|
from django.shortcuts import get_object_or_404
|
|
|
from django.shortcuts import render
|
|
|
from django.templatetags.static import static
|
|
|
from django.utils import timezone
|
|
|
from django.utils.decorators import method_decorator
|
|
|
from django.utils.translation import gettext_lazy as _
|
|
|
from django.views import View
|
|
|
from django.views.decorators.csrf import csrf_exempt
|
|
|
from django.views.generic.detail import DetailView
|
|
|
from django.views.generic.list import ListView
|
|
|
# bjy: 从Haystack中导入搜索视图
|
|
|
from haystack.views import SearchView
|
|
|
|
|
|
# bjy: 从项目中导入博客模型、评论表单、插件管理器和工具函数
|
|
|
from blog.models import Article, Category, LinkShowType, Links, Tag
|
|
|
from comments.forms import CommentForm
|
|
|
from djangoblog.plugin_manage import hooks
|
|
|
from djangoblog.plugin_manage.hook_constants import ARTICLE_CONTENT_HOOK_NAME
|
|
|
from djangoblog.utils import cache, get_blog_setting, get_sha256
|
|
|
|
|
|
# bjy: 获取一个名为__name__的logger实例，用于记录日志
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
|
|
|
# bjy: 定义一个基于类的文章列表视图，作为其他列表视图的基类
|
|
|
class ArticleListView(ListView):
|
|
|
# bjy: 指定渲染的模板文件
|
|
|
template_name = 'blog/article_index.html'
|
|
|
# bjy: 指定在模板中使用的上下文变量名
|
|
|
context_object_name = 'article_list'
|
|
|
# bjy: 页面类型，用于在模板中显示不同的标题
|
|
|
page_type = ''
|
|
|
# bjy: 每页显示的文章数量，从设置中获取
|
|
|
paginate_by = settings.PAGINATE_BY
|
|
|
# bjy: URL中分页参数的名称
|
|
|
page_kwarg = 'page'
|
|
|
# bjy: 友情链接的显示类型，默认为列表页
|
|
|
link_type = LinkShowType.L
|
|
|
|
|
|
# bjy: 获取视图的缓存键（此方法未使用）
|
|
|
def get_view_cache_key(self):
|
|
|
return self.request.get['pages']
|
|
|
|
|
|
# bjy: 属性，用于获取当前页码
|
|
|
@property
|
|
|
def page_number(self):
|
|
|
page_kwarg = self.page_kwarg
|
|
|
# bjy: 从URL参数或GET参数中获取页码，默认为1
|
|
|
page = self.kwargs.get(
|
|
|
page_kwarg) or self.request.GET.get(page_kwarg) or 1
|
|
|
return page
|
|
|
|
|
|
# bjy: 抽象方法，要求子类实现，用于获取queryset的缓存键
|
|
|
def get_queryset_cache_key(self):
|
|
|
"""
|
|
|
子类重写.获得queryset的缓存key
|
|
|
"""
|
|
|
raise NotImplementedError()
|
|
|
|
|
|
# bjy: 抽象方法，要求子类实现，用于获取实际的数据集
|
|
|
def get_queryset_data(self):
|
|
|
"""
|
|
|
子类重写.获取queryset的数据
|
|
|
"""
|
|
|
raise NotImplementedError()
|
|
|
|
|
|
# bjy: 从缓存中获取数据集，如果缓存不存在则查询数据库并存入缓存
|
|
|
def get_queryset_from_cache(self, cache_key):
|
|
|
'''
|
|
|
缓存页面数据
|
|
|
:param cache_key: 缓存key
|
|
|
:return:
|
|
|
'''
|
|
|
value = cache.get(cache_key)
|
|
|
if value:
|
|
|
logger.info('get view cache.key:{key}'.format(key=cache_key))
|
|
|
return value
|
|
|
else:
|
|
|
# bjy: 调用子类实现的get_queryset_data方法获取数据
|
|
|
article_list = self.get_queryset_data()
|
|
|
cache.set(cache_key, article_list)
|
|
|
logger.info('set view cache.key:{key}'.format(key=cache_key))
|
|
|
return article_list
|
|
|
|
|
|
# bjy: 重写父类方法，从缓存中获取queryset
|
|
|
def get_queryset(self):
|
|
|
'''
|
|
|
重写默认，从缓存获取数据
|
|
|
:return:
|
|
|
'''
|
|
|
key = self.get_queryset_cache_key()
|
|
|
value = self.get_queryset_from_cache(key)
|
|
|
return value
|
|
|
|
|
|
# bjy: 重写父类方法，向上下文中添加链接类型
|
|
|
def get_context_data(self, **kwargs):
|
|
|
kwargs['linktype'] = self.link_type
|
|
|
return super(ArticleListView, self).get_context_data(**kwargs)
|
|
|
|
|
|
|
|
|
# bjy: 首页视图，继承自ArticleListView
|
|
|
class IndexView(ArticleListView):
|
|
|
'''
|
|
|
首页
|
|
|
'''
|
|
|
# 友情链接类型
|
|
|
link_type = LinkShowType.I
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，获取首页的文章数据
|
|
|
def get_queryset_data(self):
|
|
|
article_list = Article.objects.filter(type='a', status='p')
|
|
|
return article_list
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，生成首页的缓存键
|
|
|
def get_queryset_cache_key(self):
|
|
|
cache_key = 'index_{page}'.format(page=self.page_number)
|
|
|
return cache_key
|
|
|
|
|
|
|
|
|
# bjy: 文章详情页视图
|
|
|
class ArticleDetailView(DetailView):
|
|
|
'''
|
|
|
文章详情页面
|
|
|
'''
|
|
|
template_name = 'blog/article_detail.html'
|
|
|
model = Article
|
|
|
pk_url_kwarg = 'article_id'
|
|
|
context_object_name = "article"
|
|
|
|
|
|
# bjy: 重写父类方法，向上下文中添加额外的数据
|
|
|
def get_context_data(self, **kwargs):
|
|
|
# bjy: 创建评论表单实例
|
|
|
comment_form = CommentForm()
|
|
|
# bjy: 获取文章的所有评论
|
|
|
article_comments = self.object.comment_list()
|
|
|
# bjy: 筛选出父评论（顶级评论）
|
|
|
parent_comments = article_comments.filter(parent_comment=None)
|
|
|
# bjy: 获取博客设置
|
|
|
blog_setting = get_blog_setting()
|
|
|
# bjy: 对父评论进行分页
|
|
|
paginator = Paginator(parent_comments, blog_setting.article_comment_count)
|
|
|
# bjy: 从GET参数中获取评论页码
|
|
|
page = self.request.GET.get('comment_page', '1')
|
|
|
# bjy: 校验页码是否为有效数字
|
|
|
if not page.isnumeric():
|
|
|
page = 1
|
|
|
else:
|
|
|
page = int(page)
|
|
|
if page < 1:
|
|
|
page = 1
|
|
|
if page > paginator.num_pages:
|
|
|
page = paginator.num_pages
|
|
|
|
|
|
# bjy: 获取当前页的评论对象
|
|
|
p_comments = paginator.page(page)
|
|
|
# bjy: 获取下一页和上一页的页码
|
|
|
next_page = p_comments.next_page_number() if p_comments.has_next() else None
|
|
|
prev_page = p_comments.previous_page_number() if p_comments.has_previous() else None
|
|
|
|
|
|
# bjy: 如果存在下一页，则构建下一页的URL
|
|
|
if next_page:
|
|
|
kwargs[
|
|
|
'comment_next_page_url'] = self.object.get_absolute_url() + f'?comment_page={next_page}#commentlist-container'
|
|
|
# bjy: 如果存在上一页，则构建上一页的URL
|
|
|
if prev_page:
|
|
|
kwargs[
|
|
|
'comment_prev_page_url'] = self.object.get_absolute_url() + f'?comment_page={prev_page}#commentlist-container'
|
|
|
# bjy: 将评论表单和评论数据添加到上下文
|
|
|
kwargs['form'] = comment_form
|
|
|
kwargs['article_comments'] = article_comments
|
|
|
kwargs['p_comments'] = p_comments
|
|
|
kwargs['comment_count'] = len(
|
|
|
article_comments) if article_comments else 0
|
|
|
|
|
|
# bjy: 添加上一篇和下一篇文章
|
|
|
kwargs['next_article'] = self.object.next_article
|
|
|
kwargs['prev_article'] = self.object.prev_article
|
|
|
|
|
|
# bjy: 调用父类方法获取基础上下文
|
|
|
context = super(ArticleDetailView, self).get_context_data(**kwargs)
|
|
|
article = self.object
|
|
|
|
|
|
# bjy: 触发文章详情加载钩子，让插件可以添加额外的上下文数据
|
|
|
from djangoblog.plugin_manage.hook_constants import ARTICLE_DETAIL_LOAD
|
|
|
hooks.run_action(ARTICLE_DETAIL_LOAD, article=article, context=context, request=self.request)
|
|
|
|
|
|
# bjy: Action Hook, 通知插件"文章详情已获取"
|
|
|
hooks.run_action('after_article_body_get', article=article, request=self.request)
|
|
|
return context
|
|
|
|
|
|
|
|
|
# bjy: 分类详情页视图
|
|
|
class CategoryDetailView(ArticleListView):
|
|
|
'''
|
|
|
分类目录列表
|
|
|
'''
|
|
|
page_type = "分类目录归档"
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，获取分类下的文章数据
|
|
|
def get_queryset_data(self):
|
|
|
slug = self.kwargs['category_name']
|
|
|
# bjy: 根据slug获取分类对象，如果不存在则返回404
|
|
|
category = get_object_or_404(Category, slug=slug)
|
|
|
|
|
|
categoryname = category.name
|
|
|
self.categoryname = categoryname
|
|
|
# bjy: 获取该分类及其所有子分类的名称列表
|
|
|
categorynames = list(
|
|
|
map(lambda c: c.name, category.get_sub_categorys()))
|
|
|
# bjy: 筛选出属于这些分类的所有已发布文章
|
|
|
article_list = Article.objects.filter(
|
|
|
category__name__in=categorynames, status='p')
|
|
|
return article_list
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，生成分类页的缓存键
|
|
|
def get_queryset_cache_key(self):
|
|
|
slug = self.kwargs['category_name']
|
|
|
category = get_object_or_404(Category, slug=slug)
|
|
|
categoryname = category.name
|
|
|
self.categoryname = categoryname
|
|
|
cache_key = 'category_list_{categoryname}_{page}'.format(
|
|
|
categoryname=categoryname, page=self.page_number)
|
|
|
return cache_key
|
|
|
|
|
|
# bjy: 重写父类方法，向上下文中添加分类名称
|
|
|
def get_context_data(self, **kwargs):
|
|
|
|
|
|
categoryname = self.categoryname
|
|
|
try:
|
|
|
# bjy: 处理多级分类的情况，只取最后一部分
|
|
|
categoryname = categoryname.split('/')[-1]
|
|
|
except BaseException:
|
|
|
pass
|
|
|
kwargs['page_type'] = CategoryDetailView.page_type
|
|
|
kwargs['tag_name'] = categoryname
|
|
|
return super(CategoryDetailView, self).get_context_data(**kwargs)
|
|
|
|
|
|
|
|
|
# bjy: 作者详情页视图
|
|
|
class AuthorDetailView(ArticleListView):
|
|
|
'''
|
|
|
作者详情页
|
|
|
'''
|
|
|
page_type = '作者文章归档'
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，生成作者页的缓存键
|
|
|
def get_queryset_cache_key(self):
|
|
|
from uuslug import slugify
|
|
|
author_name = slugify(self.kwargs['author_name'])
|
|
|
cache_key = 'author_{author_name}_{page}'.format(
|
|
|
author_name=author_name, page=self.page_number)
|
|
|
return cache_key
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，获取作者的文章数据
|
|
|
def get_queryset_data(self):
|
|
|
author_name = self.kwargs['author_name']
|
|
|
article_list = Article.objects.filter(
|
|
|
author__username=author_name, type='a', status='p')
|
|
|
return article_list
|
|
|
|
|
|
# bjy: 重写父类方法，向上下文中添加作者名称
|
|
|
def get_context_data(self, **kwargs):
|
|
|
author_name = self.kwargs['author_name']
|
|
|
kwargs['page_type'] = AuthorDetailView.page_type
|
|
|
kwargs['tag_name'] = author_name
|
|
|
return super(AuthorDetailView, self).get_context_data(**kwargs)
|
|
|
|
|
|
|
|
|
# bjy: 标签详情页视图
|
|
|
class TagDetailView(ArticleListView):
|
|
|
'''
|
|
|
标签列表页面
|
|
|
'''
|
|
|
page_type = '分类标签归档'
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，获取标签下的文章数据
|
|
|
def get_queryset_data(self):
|
|
|
slug = self.kwargs['tag_name']
|
|
|
tag = get_object_or_404(Tag, slug=slug)
|
|
|
tag_name = tag.name
|
|
|
self.name = tag_name
|
|
|
article_list = Article.objects.filter(
|
|
|
tags__name=tag_name, type='a', status='p')
|
|
|
return article_list
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，生成标签页的缓存键
|
|
|
def get_queryset_cache_key(self):
|
|
|
slug = self.kwargs['tag_name']
|
|
|
tag = get_object_or_404(Tag, slug=slug)
|
|
|
tag_name = tag.name
|
|
|
self.name = tag_name
|
|
|
cache_key = 'tag_{tag_name}_{page}'.format(
|
|
|
tag_name=tag_name, page=self.page_number)
|
|
|
return cache_key
|
|
|
|
|
|
# bjy: 重写父类方法，向上下文中添加标签名称
|
|
|
def get_context_data(self, **kwargs):
|
|
|
# tag_name = self.kwargs['tag_name']
|
|
|
tag_name = self.name
|
|
|
kwargs['page_type'] = TagDetailView.page_type
|
|
|
kwargs['tag_name'] = tag_name
|
|
|
return super(TagDetailView, self).get_context_data(**kwargs)
|
|
|
|
|
|
|
|
|
# bjy: 文章归档页视图
|
|
|
class ArchivesView(ArticleListView):
|
|
|
'''
|
|
|
文章归档页面
|
|
|
'''
|
|
|
page_type = '文章归档'
|
|
|
# bjy: 归档页不分页
|
|
|
paginate_by = None
|
|
|
page_kwarg = None
|
|
|
template_name = 'blog/article_archives.html'
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，获取所有已发布文章
|
|
|
def get_queryset_data(self):
|
|
|
return Article.objects.filter(status='p').all()
|
|
|
|
|
|
# bjy: 实现父类的抽象方法，生成归档页的缓存键
|
|
|
def get_queryset_cache_key(self):
|
|
|
cache_key = 'archives'
|
|
|
return cache_key
|
|
|
|
|
|
|
|
|
# bjy: 友情链接页视图
|
|
|
class LinkListView(ListView):
|
|
|
model = Links
|
|
|
template_name = 'blog/links_list.html'
|
|
|
|
|
|
# bjy: 重写queryset，只获取已启用的链接
|
|
|
def get_queryset(self):
|
|
|
return Links.objects.filter(is_enable=True)
|
|
|
|
|
|
|
|
|
# bjy: 自定义的Elasticsearch搜索视图
|
|
|
class EsSearchView(SearchView):
|
|
|
# bjy: 重写get_context方法，自定义搜索结果的上下文
|
|
|
def get_context(self):
|
|
|
paginator, page = self.build_page()
|
|
|
context = {
|
|
|
"query": self.query,
|
|
|
"form": self.form,
|
|
|
"page": page,
|
|
|
"paginator": paginator,
|
|
|
"suggestion": None,
|
|
|
}
|
|
|
# bjy: 如果启用了拼写建议，则添加到上下文
|
|
|
if hasattr(self.results, "query") and self.results.query.backend.include_spelling:
|
|
|
context["suggestion"] = self.results.query.get_spelling_suggestion()
|
|
|
context.update(self.extra_context())
|
|
|
|
|
|
return context
|
|
|
|
|
|
|
|
|
class LikeArticle(View):
|
|
|
"""
|
|
|
处理文章点赞和取消点赞
|
|
|
"""
|
|
|
|
|
|
@method_decorator(login_required) # 确保只有登录用户才能点赞
|
|
|
def post(self, request):
|
|
|
try:
|
|
|
user = request.user
|
|
|
article_id = request.POST.get('article_id') # 获取文章ID
|
|
|
article = Article.objects.get(id=article_id) # 获取文章对象
|
|
|
|
|
|
# 检查当前用户是否已经为这篇文章点过赞
|
|
|
if article.users_like.filter(id=user.id).exists():
|
|
|
# 如果点过赞，则取消点赞 (从多对多关系中移除)
|
|
|
article.users_like.remove(user)
|
|
|
action_type = 0 # 0代表取消点赞
|
|
|
else:
|
|
|
# 如果没点过赞，则添加点赞 (添加到多对多关系)
|
|
|
article.users_like.add(user)
|
|
|
action_type = 1 # 1代表点赞
|
|
|
|
|
|
# 获取更新后的点赞总数
|
|
|
like_count = article.users_like.count()
|
|
|
|
|
|
# 返回JSON数据给前端
|
|
|
return JsonResponse({
|
|
|
'state': 200,
|
|
|
'type': action_type,
|
|
|
'like_sum': like_count
|
|
|
})
|
|
|
|
|
|
except Article.DoesNotExist:
|
|
|
return JsonResponse({'state': 400, 'data': '文章不存在'})
|
|
|
except Exception as e:
|
|
|
return JsonResponse({'state': 500, 'data': f'服务器错误: {e}'})
|
|
|
|
|
|
# bjy: 文件上传视图，使用csrf_exempt豁免CSRF验证
|
|
|
@csrf_exempt
|
|
|
def fileupload(request):
|
|
|
"""
|
|
|
该方法需自己写调用端来上传图片，该方法仅提供图床功能
|
|
|
:param request:
|
|
|
:return:
|
|
|
"""
|
|
|
if request.method == 'POST':
|
|
|
# bjy: 从GET参数中获取签名
|
|
|
sign = request.GET.get('sign', None)
|
|
|
if not sign:
|
|
|
return HttpResponseForbidden()
|
|
|
# bjy: 验证签名是否正确
|
|
|
if not sign == get_sha256(get_sha256(settings.SECRET_KEY)):
|
|
|
return HttpResponseForbidden()
|
|
|
response = []
|
|
|
# bjy: 遍历所有上传的文件
|
|
|
for filename in request.FILES:
|
|
|
# bjy: 按年/月/日创建目录
|
|
|
timestr = timezone.now().strftime('%Y/%m/%d')
|
|
|
imgextensions = ['jpg', 'png', 'jpeg', 'bmp']
|
|
|
fname = u''.join(str(filename))
|
|
|
# bjy: 判断文件是否为图片
|
|
|
isimage = len([i for i in imgextensions if fname.find(i) >= 0]) > 0
|
|
|
base_dir = os.path.join(settings.STATICFILES, "files" if not isimage else "image", timestr)
|
|
|
# bjy: 如果目录不存在则创建
|
|
|
if not os.path.exists(base_dir):
|
|
|
os.makedirs(base_dir)
|
|
|
# bjy: 生成唯一的文件名并拼接保存路径
|
|
|
savepath = os.path.normpath(os.path.join(base_dir, f"{uuid.uuid4().hex}{os.path.splitext(filename)[-1]}"))
|
|
|
# bjy: 安全检查，防止路径遍历攻击
|
|
|
if not savepath.startswith(base_dir):
|
|
|
return HttpResponse("only for post")
|
|
|
# bjy: 将文件内容写入磁盘
|
|
|
with open(savepath, 'wb+') as wfile:
|
|
|
for chunk in request.FILES[filename].chunks():
|
|
|
wfile.write(chunk)
|
|
|
# bjy: 如果是图片，则进行压缩优化
|
|
|
if isimage:
|
|
|
from PIL import Image
|
|
|
image = Image.open(savepath)
|
|
|
image.save(savepath, quality=20, optimize=True)
|
|
|
# bjy: 生成文件的静态URL
|
|
|
url = static(savepath)
|
|
|
response.append(url)
|
|
|
# bjy: 返回包含所有文件URL的响应
|
|
|
return HttpResponse(response)
|
|
|
|
|
|
else:
|
|
|
# bjy: 非POST请求返回错误信息
|
|
|
return HttpResponse("only for post")
|
|
|
|
|
|
|
|
|
# bjy: 自定义404错误处理视图
|
|
|
def page_not_found_view(
|
|
|
request,
|
|
|
exception,
|
|
|
template_name='blog/error_page.html'):
|
|
|
if exception:
|
|
|
logger.error(exception)
|
|
|
url = request.get_full_path()
|
|
|
return render(request,
|
|
|
template_name,
|
|
|
{'message': _('Sorry, the page you requested is not found, please click the home page to see other?'),
|
|
|
'statuscode': '404'},
|
|
|
status=404)
|
|
|
|
|
|
|
|
|
# bjy: 自定义500服务器错误处理视图
|
|
|
def server_error_view(request, template_name='blog/error_page.html'):
|
|
|
return render(request,
|
|
|
template_name,
|
|
|
{'message': _('Sorry, the server is busy, please click the home page to see other?'),
|
|
|
'statuscode': '500'},
|
|
|
status=500)
|
|
|
|
|
|
|
|
|
# bjy: 自定义403权限拒绝错误处理视图
|
|
|
def permission_denied_view(
|
|
|
request,
|
|
|
exception,
|
|
|
template_name='blog/error_page.html'):
|
|
|
if exception:
|
|
|
logger.error(exception)
|
|
|
return render(
|
|
|
request, template_name, {
|
|
|
'message': _('Sorry, you do not have permission to access this page?'),
|
|
|
'statuscode': '403'}, status=403)
|
|
|
|
|
|
|
|
|
# bjy: 清除缓存的视图
|
|
|
def clean_cache_view(request):
|
|
|
cache.clear()
|
|
|
return HttpResponse('ok')
|
