sh_djangoblog APP注释

src/djangoblog/__init__.py

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+"""sh:该配置类通常位于djangoblog/apps.py文件中，可用于定义应用的名称、信号注册、启动时执行的操作等"""
+default_app_config = 'djangoblog.apps.DjangoblogAppConfig'

src/djangoblog/admin_site.py

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+from django.contrib.admin import AdminSite
+from django.contrib.admin.models import LogEntry
+from django.contrib.sites.admin import SiteAdmin
+from django.contrib.sites.models import Site
+
+from accounts.admin import UserAdmin, GroupAdmin
+from blog.admin import PostAdmin, CategoryAdmin
+from blog.models import Post, Category
+from comments.admin import CommentAdmin
+from comments.models import Comment
+from djangoblog.logentryadmin import LogEntryAdmin
+from oauth.admin import OAuthAppAdmin, OAuthUserAdmin
+from oauth.models import OAuthApp, OAuthUser
+from owntracks.admin import DeviceAdmin, LocationAdmin
+from owntracks.models import Device, Location
+from servermanager.admin import ServerAdmin, TaskAdmin
+from servermanager.models import Server, Task
+
+class DjangoBlogAdminSite(AdminSite):
+    """
+    sh:
+    自定义Admin站点类，继承自Django的AdminSite
+    用于定制博客系统的管理后台特性
+    """
+    # 管理后台页面顶部的标题
+    site_header = 'djangoblog administration'
+    # 浏览器标签页显示的标题
+    site_title = 'djangoblog site admin'
+
+    def __init__(self, name='admin'):
+        # 调用父类构造方法初始化
+        super().__init__(name)
+
+    def has_permission(self, request):
+        """
+        重写权限检查方法：仅允许超级用户访问管理后台
+        """
+        return request.user.is_superuser
+
+
+admin_site = DjangoBlogAdminSite(name='admin')
+"""注册博客核心模型及对应的Admin配置"""
+admin_site.register(Article, ArticlelAdmin)
+admin_site.register(Category, CategoryAdmin)
+admin_site.register(Tag, TagAdmin)
+admin_site.register(Links, LinksAdmin)
+admin_site.register(SideBar, SideBarAdmin)
+admin_site.register(BlogSettings, BlogSettingsAdmin)
+"""注册服务器管理相关模型"""
+admin_site.register(commands, CommandsAdmin)
+admin_site.register(EmailSendLog, EmailSendLogAdmin)
+"""注册用户相关模型"""
+admin_site.register(BlogUser, BlogUserAdmin)
+"""注册评论模型"""
+admin_site.register(Comment, CommentAdmin)
+"""注册OAuth相关模型"""
+admin_site.register(OAuthUser, OAuthUserAdmin)
+admin_site.register(OAuthConfig, OAuthConfigAdmin)
+"""注册OwnTracks位置追踪模型"""
+admin_site.register(OwnTrackLog, OwnTrackLogsAdmin)
+"""注册站点和操作日志模型"""
+admin_site.register(Site, SiteAdmin)
+admin_site.register(LogEntry, LogEntryAdmin)

src/djangoblog/apps.py

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+from django.apps import AppConfig
+
+class DjangoblogAppConfig(AppConfig):
+    """
+    sh:
+    博客应用的自定义配置类，用于管理应用的初始化和生命周期
+    继承自Django的AppConfig，可重写方法实现应用启动时的自定义逻辑
+    """
+    """指定模型默认的自增字段类型为BigAutoField（大整数自增字段，支持更大范围的ID"""
+    default_auto_field = 'django.db.models.BigAutoField'
+    """应用的名称（与项目结构中应用的目录名一致）"""
+    name = 'djangoblog'
+
+    def ready(self):
+        """
+        重写AppConfig的ready方法，在应用加载就绪时执行初始化操作
+        该方法会在Django项目启动、应用注册表就绪后被调用
+        """
+        super().ready()
+        """导入并加载插件（插件加载逻辑放在此处，确保应用就绪后再执行）"""
+        from .plugin_manage.loader import load_plugins
+        load_plugins() 

src/djangoblog/blog_signals.py

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+import _thread
+import logging
+
+import django.dispatch
+from django.conf import settings
+from django.contrib.admin.models import LogEntry
+from django.contrib.auth.signals import user_logged_in, user_logged_out
+from django.core.mail import EmailMultiAlternatives
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from comments.models import Comment
+from comments.utils import send_comment_email
+from djangoblog.spider_notify import SpiderNotify
+from djangoblog.utils import cache, expire_view_cache, delete_sidebar_cache, delete_view_cache
+from djangoblog.utils import get_current_site
+from oauth.models import OAuthUser
+
+logger = logging.getLogger(__name__)
+
+oauth_user_login_signal = django.dispatch.Signal(['id'])
+
+send_email_signal = django.dispatch.Signal(
+    ['emailto', 'title', 'content'])
+
+
+@receiver(send_email_signal)
+def send_email_signal_handler(sender, **kwargs):
+    """
+    sh:
+    发送邮件信号的接收器：处理邮件发送逻辑并记录发送日志
+    """
+    """从信号参数中提取邮件信息"""
+    emailto = kwargs['emailto']
+    title = kwargs['title']
+    content = kwargs['content']
+    """创建HTML格式邮件"""
+    msg = EmailMultiAlternatives(
+        title,
+        content,
+        from_email=settings.DEFAULT_FROM_EMAIL,
+        to=emailto)
+    msg.content_subtype = "html"
+    """初始化邮件发送日志记录"""
+    from servermanager.models import EmailSendLog
+    log = EmailSendLog()
+    log.title = title
+    log.content = content
+    log.emailto = ','.join(emailto)
+
+    try:
+        result = msg.send()
+        log.send_result = result > 0
+    except Exception as e:
+        logger.error(f"失败邮箱号: {emailto}, {e}")
+        log.send_result = False
+    log.save()
+
+
+@receiver(oauth_user_login_signal)
+def oauth_user_login_signal_handler(sender, **kwargs):
+    oauth_user_id = kwargs['id']
+    """
+    OAuth用户登录信号的接收器：处理用户头像本地化存储
+    """
+    oauthuser = OAuthUser.objects.get(id=oauth_user_id)
+    site = get_current_site().domain
+    if oauthuser.picture and oauthuser.picture.find(site) == -1:
+        from djangoblog.utils import save_user_avatar
+        oauthuser.picture = save_user_avatar(oauthuser.picture)
+        oauthuser.save()
+
+    delete_sidebar_cache()
+
+
+@receiver(post_save)
+def _notify_baidu_spider(instance, is_update_views):
+    if not settings.TESTING and not is_update_views:
+        try:
+            notify_url = instance.get_full_url()
+            SpiderNotify.baidu_notify([notify_url])
+        except Exception as ex:
+            logger.error("notify spider: %s", ex)
+    return not is_update_views
+
+
+def _handle_comment_cache(instance):
+    path = instance.article.get_absolute_url()
+    site = get_current_site().domain
+    if site.find(':') > 0:
+        site = site[:site.find(':')]
+
+    expire_view_cache(
+        path,
+        servername=site,
+        serverport=80,
+        key_prefix='blogdetail'
+    )
+
+    if cache.get('seo_processor'):
+        cache.delete('seo_processor')
+
+    comment_cache_key = 'article_comments_{id}'.format(id=instance.article.id)
+    cache.delete(comment_cache_key)
+    delete_sidebar_cache()
+    delete_view_cache(prefix='article_comments', keys=[str(instance.article.pk)])
+
+    _thread.start_new_thread(send_comment_email, args=(instance,))
+
+def model_post_save_callback(
+    instance,
+    update_fields,
+    **kwargs
+):
+    clearcache = False
+
+    """跳过LogEntry类型的实例"""
+    if isinstance(instance, LogEntry):
+        return
+
+    """处理百度蜘蛛通知逻辑"""
+    if 'get_full_url' in dir(instance):
+        is_update_views = update_fields == {'views'}
+        clearcache = _notify_baidu_spider(instance, is_update_views) or clearcache
+
+    """处理评论相关逻辑"""
+    if isinstance(instance, Comment) and instance.is_enable:
+        _handle_comment_cache(instance)
+        clearcache = True
+
+    """最终清理缓存"""
+    if clearcache:
+        cache.clear()
+
+
+@receiver(user_logged_in)
+@receiver(user_logged_out)
+def user_auth_callback(sender, request, user, **kwargs):
+    if user and user.username:
+        logger.info(user)
+        delete_sidebar_cache()
+        # cache.clear()

src/djangoblog/elasticsearch_backend.py

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+from django.utils.encoding import force_str
+from elasticsearch_dsl import Q
+from haystack.backends import BaseEngine, BaseSearchBackend, BaseSearchQuery, log_query
+from haystack.forms import ModelSearchForm
+from haystack.models import SearchResult
+from haystack.utils import log as logging
+
+from blog.documents import ArticleDocument, ArticleDocumentManager
+from blog.models import Article
+
+logger = logging.getLogger(__name__)
+
+class ElasticSearchBackend(BaseSearchBackend):
+    """
+    sh:
+    自定义Elasticsearch搜索后端，继承Haystack的BaseSearchBackend
+    实现与Elasticsearch的交互逻辑（数据同步、搜索查询、拼写建议等）
+    """
+    def __init__(self, connection_alias, **connection_options):
+        super(
+            ElasticSearchBackend,
+            self).__init__(
+            connection_alias,
+            **connection_options)
+        self.manager = ArticleDocumentManager()
+        self.include_spelling = True
+
+    def _get_models(self, iterable):
+        """
+        将模型实例列表转换为Elasticsearch文档对象
+        iterable：待转换的模型实例集合（可为空）
+        """
+        models = iterable if iterable and iterable[0] else Article.objects.all()
+        docs = self.manager.convert_to_doc(models)
+        return docs
+
+    def _create(self, models):
+        """创建Elasticsearch索引并批量写入文档"""
+        self.manager.create_index()
+        docs = self._get_models(models)
+        self.manager.rebuild(docs)
+
+    def _delete(self, models):
+        """从Elasticsearch中删除指定模型对应的文档"""
+        for m in models:
+            m.delete()
+        return True
+
+    def _rebuild(self, models):
+        """更新Elasticsearch索引（增量同步文档）"""
+        models = models if models else Article.objects.all()
+        docs = self.manager.convert_to_doc(models)
+        self.manager.update_docs(docs)
+
+    def update(self, index, iterable, commit=True):
+        """Haystack规范方法：更新搜索索引（接收Haystack的索引更新请求）"""
+        models = self._get_models(iterable)
+        self.manager.update_docs(models)
+
+    def remove(self, obj_or_string):
+        """Haystack规范方法：移除索引中指定对象"""
+        models = self._get_models([obj_or_string])
+        self._delete(models)
+
+    def clear(self, models=None, commit=True):
+        """Haystack规范方法：清空索引"""
+        self.remove(None)
+
+    @staticmethod
+    def get_suggestion(query: str) -> str:
+        """获取推荐词, 如果没有找到添加原搜索词"""
+        search = ArticleDocument.search() \
+            .query("match", body=query) \
+            .suggest('suggest_search', query, term={'field': 'body'}) \
+            .execute()
+
+        keywords = []
+        for suggest in search.suggest.suggest_search:
+            if suggest["options"]:
+                keywords.append(suggest["options"][0]["text"])
+            else:
+                keywords.append(suggest["text"])
+
+        return ' '.join(keywords)
+
+    @log_query
+    def search(self, query_string, **kwargs):
+        """
+        核心搜索方法：执行Elasticsearch查询并封装结果
+        query_string：用户输入的搜索关键词
+        kwargs：附加参数（分页偏移量等）
+        """
+        logger.info('search query_string:' + query_string)
+        start_offset = kwargs.get('start_offset')
+        end_offset = kwargs.get('end_offset')
+
+        # 推荐词搜索
+        if getattr(self, "is_suggest", None):
+            suggestion = self.get_suggestion(query_string)
+        else:
+            suggestion = query_string
+
+        q = Q('bool',
+              should=[Q('match', body=suggestion), Q('match', title=suggestion)],
+              minimum_should_match="70%")
+
+        search = ArticleDocument.search() \
+                     .query('bool', filter=[q]) \
+                     .filter('term', status='p') \
+                     .filter('term', type='a') \
+                     .source(False)[start_offset: end_offset]
+
+        results = search.execute()
+        hits = results['hits'].total
+        raw_results = []
+        for raw_result in results['hits']['hits']:
+            app_label = 'blog'
+            model_name = 'Article'
+            additional_fields = {}
+
+            result_class = SearchResult
+
+            result = result_class(
+                app_label,
+                model_name,
+                raw_result['_id'],
+                raw_result['_score'],
+                **additional_fields)
+            raw_results.append(result)
+        facets = {}
+        spelling_suggestion = None if query_string == suggestion else suggestion
+
+        return {
+            'results': raw_results,
+            'hits': hits,
+            'facets': facets,
+            'spelling_suggestion': spelling_suggestion,
+        }
+
+
+class ElasticSearchQuery(BaseSearchQuery):
+    """
+    自定义搜索查询类，继承Haystack的BaseSearchQuery
+    处理查询参数清洗、格式转换、结果计数等逻辑
+    """
+    def _convert_datetime(self, date):
+        if hasattr(date, 'hour'):
+            return force_str(date.strftime('%Y%m%d%H%M%S'))
+        else:
+            return force_str(date.strftime('%Y%m%d000000'))
+
+    def clean(self, query_fragment):
+        """
+        清洗用户输入的搜索关键词
+        处理保留词、特殊字符转义，避免查询语法错误
+        """
+        words = query_fragment.split()
+        cleaned_words = []
+
+        for word in words:
+            if word in self.backend.RESERVED_WORDS:
+                word = word.replace(word, word.lower())
+
+            for char in self.backend.RESERVED_CHARACTERS:
+                if char in word:
+                    word = "'%s'" % word
+                    break
+
+            cleaned_words.append(word)
+
+        return ' '.join(cleaned_words)
+
+    def build_query_fragment(self, field, filter_type, value):
+        """构建查询片段（适配Haystack查询构建逻辑）"""
+        return value.query_string
+
+    def get_count(self):
+        """获取搜索结果总数"""
+        results = self.get_results()
+        return len(results) if results else 0
+
+    def get_spelling_suggestion(self, preferred_query=None):
+        """获取拼写建议（对接后端的关键词推荐功能）"""
+        return self._spelling_suggestion
+
+    def build_params(self, spelling_query=None):
+        """构建查询参数（继承父类逻辑，可自定义扩展）"""
+        kwargs = super(ElasticSearchQuery, self).build_params(spelling_query=spelling_query)
+        return kwargs
+
+
+class ElasticSearchModelSearchForm(ModelSearchForm):
+    """
+    自定义搜索表单，继承Haystack的ModelSearchForm
+    控制是否启用关键词推荐功能
+    """
+    def search(self):
+        self.searchqueryset.query.backend.is_suggest = self.data.get("is_suggest") != "no"
+        sqs = super().search()
+        return sqs
+
+
+class ElasticSearchEngine(BaseEngine):
+    """
+    Haystack搜索引擎入口类，关联自定义的Backend和Query
+    供Django项目配置使用（在settings中指定该引擎）
+    """
+    backend = ElasticSearchBackend
+    query = ElasticSearchQuery

src/djangoblog/feeds.py

@@ -0,0 +1,55 @@
+from django.contrib.auth import get_user_model
+from django.contrib.syndication.views import Feed
+from django.utils import timezone
+from django.utils.feedgenerator import Rss201rev2Feed
+
+from blog.models import Article
+from djangoblog.utils import CommonMarkdown
+
+class DjangoBlogFeed(Feed):
+    """
+    sh:
+    自定义博客RSS订阅源生成类，继承Django的Feed类
+    用于生成符合RSS 2.0规范的博客内容订阅源
+    """
+    feed_type = Rss201rev2Feed
+    description = '大巧无工,重剑无锋.'
+    title = "且听风吟 大巧无工,重剑无锋. "
+    link = "/feed/"
+
+    def author_name(self):
+        """返回订阅源的作者名称（此处取系统中第一个用户的昵称）"""
+        return get_user_model().objects.first().nickname
+
+    def author_link(self):
+        """返回作者的个人主页链接"""
+        return get_user_model().objects.first().get_absolute_url()
+
+    def items(self):
+        """
+        定义RSS源中包含的内容项
+        返回最新发布的5篇文章（类型为'article'，状态为'published'）
+        """
+        return Article.objects.filter(type='a', status='p').order_by('-pub_time')[:5]
+
+    def item_title(self, item):
+        """返回单个内容项（文章）的标题"""
+        return item.title
+
+    def item_description(self, item):
+        """
+        返回单个内容项（文章）的描述
+        将Markdown格式的文章内容转换为HTML格式用于RSS展示
+        """
+        return CommonMarkdown.get_markdown(item.body)
+
+    def feed_copyright(self):
+        """返回RSS源的版权信息，包含当前年份"""
+        now = timezone.now()
+        return "Copyright© {year} 且听风吟".format(year=now.year)
+
+    def item_link(self, item):
+        return item.get_absolute_url()
+
+    def item_guid(self, item):
+        return

src/djangoblog/logentryadmin.py

@@ -0,0 +1,112 @@
+from django.contrib import admin
+from django.contrib.admin.models import DELETION
+from django.contrib.contenttypes.models import ContentType
+from django.urls import reverse, NoReverseMatch
+from django.utils.encoding import force_str
+from django.utils.html import escape
+from django.utils.safestring import mark_safe
+from django.utils.translation import gettext_lazy as _
+
+class LogEntryAdmin(admin.ModelAdmin):
+    """
+    sh:
+    自定义Admin操作日志管理类，继承自ModelAdmin
+    用于在Django Admin后台展示和管理系统操作日志（LogEntry模型）
+    优化日志展示格式，提供关联对象/用户的快速链接，限制操作权限
+    """
+    list_filter = [
+        'content_type'
+    ]
+
+    search_fields = [
+        'object_repr',
+        'change_message'
+    ]
+
+    list_display_links = [
+        'action_time',
+        'get_change_message',
+    ]
+    list_display = [
+        'action_time',
+        'user_link',
+        'content_type',
+        'object_link',
+        'get_change_message',
+    ]
+
+    def has_add_permission(self, request):
+        """禁用添加操作：操作日志为系统自动生成，不允许手动添加"""
+        return False
+
+    def has_change_permission(self, request, obj=None):
+        """
+        限制修改权限：仅超级用户或拥有change_logentry权限的用户可查看
+        且禁止POST请求（防止通过表单提交修改）
+        """
+        return (
+                request.user.is_superuser or
+                request.user.has_perm('admin.change_logentry')
+        ) and request.method != 'POST'
+
+    def has_delete_permission(self, request, obj=None):
+        """禁用删除操作：操作日志需保留，不允许手动删除"""
+        return False
+
+    def object_link(self, obj):
+        """
+        自定义列表字段：操作对象的名称（带跳转链接）
+        非删除操作时，生成对象的Admin编辑页链接；删除操作仅显示对象名称
+        """
+        object_link = escape(obj.object_repr)
+        content_type = obj.content_type
+
+        if obj.action_flag != DELETION and content_type is not None:
+            # try returning an actual link instead of object repr string
+            try:
+                url = reverse(
+                    'admin:{}_{}_change'.format(content_type.app_label,
+                                                content_type.model),
+                    args=[obj.object_id]
+                )
+                object_link = '<a href="{}">{}</a>'.format(url, object_link)
+            except NoReverseMatch:
+                pass
+        return mark_safe(object_link)
+
+    object_link.admin_order_field = 'object_repr'
+    object_link.short_description = _('object')
+
+    def user_link(self, obj):
+        """
+        自定义列表字段：操作用户的名称（带跳转链接）
+        生成用户的Admin编辑页链接，方便快速查看用户信息
+        """
+        content_type = ContentType.objects.get_for_model(type(obj.user))
+        user_link = escape(force_str(obj.user))
+        try:
+            # try returning an actual link instead of object repr string
+            url = reverse(
+                'admin:{}_{}_change'.format(content_type.app_label,
+                                            content_type.model),
+                args=[obj.user.pk]
+            )
+            user_link = '<a href="{}">{}</a>'.format(url, user_link)
+        except NoReverseMatch:
+            pass
+        return mark_safe(user_link)
+
+    user_link.admin_order_field = 'user'
+    user_link.short_description = _('user')
+
+    def get_queryset(self, request):
+        """优化查询性能：预加载content_type关联数据，减少数据库查询次数"""
+        queryset = super(LogEntryAdmin, self).get_queryset(request)
+        return queryset.prefetch_related('content_type')
+
+    def get_actions(self, request):
+        """移除批量删除操作：操作日志不允许批量删除"""
+        actions = super(LogEntryAdmin, self).get_actions(request)
+        if 'delete_selected' in actions:
+            del actions['delete_selected']
+        return actions

src/djangoblog/plugin_manage/base_plugin.py

@@ -0,0 +1,42 @@
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class BasePlugin:
+    # 插件元数据
+    PLUGIN_NAME = None
+    PLUGIN_DESCRIPTION = None
+    PLUGIN_VERSION = None
+
+    def __init__(self):
+        if not all([self.PLUGIN_NAME, self.PLUGIN_DESCRIPTION, self.PLUGIN_VERSION]):
+            raise ValueError("Plugin metadata (PLUGIN_NAME, PLUGIN_DESCRIPTION, PLUGIN_VERSION) must be defined.")
+        self.init_plugin()
+        self.register_hooks()
+
+    def init_plugin(self):
+        """
+        sh:
+        插件初始化逻辑
+        子类可以重写此方法来实现特定的初始化操作
+        """
+        logger.info(f'{self.PLUGIN_NAME} initialized.')
+
+    def register_hooks(self):
+        """
+        注册插件钩子
+        子类可以重写此方法来注册特定的钩子
+        """
+        pass
+
+    def get_plugin_info(self):
+        """
+        获取插件信息
+        :return: 包含插件元数据的字典
+        """
+        return {
+            'name': self.PLUGIN_NAME,
+            'description': self.PLUGIN_DESCRIPTION,
+            'version': self.PLUGIN_VERSION
+        }

src/djangoblog/plugin_manage/hook_constants.py

@@ -0,0 +1,11 @@
+# 常量：文章详情加载事件标识
+ARTICLE_DETAIL_LOAD = 'article_detail_load'
+# 常量：文章创建事件标识
+ARTICLE_CREATE = 'article_create'
+# 常量：文章更新事件标识
+ARTICLE_UPDATE = 'article_update'
+# 常量：文章删除事件标识
+ARTICLE_DELETE = 'article_delete'
+# 常量：文章内容钩子名称（通常用于钩子函数注册，处理文章内容相关逻辑）
+ARTICLE_CONTENT_HOOK_NAME = "the_content"
+

src/djangoblog/plugin_manage/hooks.py

@@ -0,0 +1,45 @@
+import logging
+
+logger = logging.getLogger(__name__)
+
+_hooks = {}
+
+
+def register(hook_name: str, callback: callable):
+    """
+    sh:
+    注册一个钩子回调。
+    """
+    if hook_name not in _hooks:
+        _hooks[hook_name] = []
+    _hooks[hook_name].append(callback)
+    logger.debug(f"Registered hook '{hook_name}' with callback '{callback.__name__}'")
+
+
+def run_action(hook_name: str, *args, **kwargs):
+    """
+    执行一个 Action Hook。
+    它会按顺序执行所有注册到该钩子上的回调函数。
+    """
+    if hook_name in _hooks:
+        logger.debug(f"Running action hook '{hook_name}'")
+        for callback in _hooks[hook_name]:
+            try:
+                callback(*args, **kwargs)
+            except Exception as e:
+                logger.error(f"Error running action hook '{hook_name}' callback '{callback.__name__}': {e}", exc_info=True)
+
+
+def apply_filters(hook_name: str, value, *args, **kwargs):
+    """
+    执行一个 Filter Hook。
+    它会把 value 依次传递给所有注册的回调函数进行处理。
+    """
+    if hook_name in _hooks:
+        logger.debug(f"Applying filter hook '{hook_name}'")
+        for callback in _hooks[hook_name]:
+            try:
+                value = callback(value, *args, **kwargs)
+            except Exception as e:
+                logger.error(f"Error applying filter hook '{hook_name}' callback '{callback.__name__}': {e}", exc_info=True)
+    return value

src/djangoblog/plugin_manage/loader.py

@@ -0,0 +1,27 @@
+import os
+import logging
+from django.conf import settings
+
+logger = logging.getLogger(__name__)
+
+def load_plugins():
+    """
+    sh:
+    动态加载并初始化位于'plugins'目录中的插件。
+    此函数旨在Django应用注册表就绪时被调用（通常在项目启动阶段）。
+
+    加载逻辑说明：
+    1. 遍历配置中激活的插件列表（settings.ACTIVE_PLUGINS）
+    2. 检查插件目录是否存在且包含必要的入口文件（plugin.py）
+    3. 动态导入符合条件的插件并记录加载状态
+    """
+    for plugin_name in settings.ACTIVE_PLUGINS:
+
+        plugin_path = os.path.join(settings.PLUGINS_DIR, plugin_name)
+
+        if os.path.isdir(plugin_path) and os.path.exists(os.path.join(plugin_path, 'plugin.py')):
+            try:
+                __import__(f'plugins.{plugin_name}.plugin')
+                logger.info(f"Successfully loaded plugin: {plugin_name}")
+            except ImportError as e:
+                logger.error(f"Failed to import plugin: {plugin_name}", exc_info=e)

src/djangoblog/settings.py

@@ -0,0 +1,317 @@
+import os
+import sys
+from pathlib import Path
+
+from django.utils.translation import gettext_lazy as _
+
+
+def env_to_bool(env, default):
+    """
+    sh:
+    环境变量转换为布尔值的工具函数
+    env: 环境变量名
+    default: 环境变量不存在时的默认值
+    """
+    str_val = os.environ.get(env)
+    return default if str_val is None else str_val == 'True'
+
+
+"""项目根目录（当前文件所在目录的父级目录)"""
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+SECRET_KEY = os.environ.get(
+    'DJANGO_SECRET_KEY') or 'n9ceqv38)#&mwuat@(mjb_p%em$e8$qyr#fw9ot!=ba6lijx-6'
+
+DEBUG = env_to_bool('DJANGO_DEBUG', True)
+
+TESTING = len(sys.argv) > 1 and sys.argv[1] == 'test'
+
+ALLOWED_HOSTS = ['*', '127.0.0.1', 'example.com']
+
+CSRF_TRUSTED_ORIGINS = ['http://example.com']
+
+
+INSTALLED_APPS = [
+    """Django内置Admin（使用简化配置SimpleAdminConfig）"""
+    'django.contrib.admin.apps.SimpleAdminConfig',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'django.contrib.sites',
+    'django.contrib.sitemaps',
+    'mdeditor',
+    'haystack',
+    'blog',
+    'accounts',
+    'comments',
+    'oauth',
+    'servermanager',
+    'owntracks',
+    'compressor',
+    'djangoblog'
+]
+
+"""中间件配置（请求/响应处理流水线）"""
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.locale.LocaleMiddleware',
+    'django.middleware.gzip.GZipMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'django.middleware.http.ConditionalGetMiddleware',
+    'blog.middleware.OnlineMiddleware'
+]
+
+ROOT_URLCONF = 'djangoblog.urls'
+
+"""模板配置"""
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [os.path.join(BASE_DIR, 'templates')],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+                'blog.context_processors.seo_processor'
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'djangoblog.wsgi.application'
+
+"""数据库配置（MySQL）"""
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.mysql',
+        'NAME': 'djangoblog',
+        'USER': 'root',
+        'PASSWORD': '2315304313',
+        'HOST': '127.0.0.1',
+        'PORT': int(3306),
+        'OPTIONS': {
+            'charset': 'utf8mb4'},
+    }}
+
+"""密码验证规则"""
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+LANGUAGES = (
+    ('en', _('English')),
+    ('zh-hans', _('Simplified Chinese')),
+    ('zh-hant', _('Traditional Chinese')),
+)
+LOCALE_PATHS = (
+    os.path.join(BASE_DIR, 'locale'),
+)
+
+LANGUAGE_CODE = 'zh-hans'
+
+TIME_ZONE = 'Asia/Shanghai'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = False
+
+HAYSTACK_CONNECTIONS = {
+    'default': {
+        'ENGINE': 'djangoblog.whoosh_cn_backend.WhooshEngine',
+        'PATH': os.path.join(os.path.dirname(__file__), 'whoosh_index'),
+    },
+}
+
+HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor'
+
+AUTHENTICATION_BACKENDS = [
+    'accounts.user_login_backend.EmailOrUsernameModelBackend']
+
+STATIC_ROOT = os.path.join(BASE_DIR, 'collectedstatic')
+
+STATIC_URL = '/static/'
+STATICFILES = os.path.join(BASE_DIR, 'static')
+
+AUTH_USER_MODEL = 'accounts.BlogUser'
+LOGIN_URL = '/login/'
+
+TIME_FORMAT = '%Y-%m-%d %H:%M:%S'
+DATE_TIME_FORMAT = '%Y-%m-%d'
+
+
+BOOTSTRAP_COLOR_TYPES = [
+    'default', 'primary', 'success', 'info', 'warning', 'danger'
+]
+
+
+PAGINATE_BY = 10
+
+CACHE_CONTROL_MAX_AGE = 2592000
+
+CACHES = {
+    'default': {
+        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
+        'TIMEOUT': 10800,
+        'LOCATION': 'unique-snowflake',
+    }
+}
+"""使用redis作为缓存"""
+if os.environ.get("DJANGO_REDIS_URL"):
+    CACHES = {
+        'default': {
+            'BACKEND': 'django.core.cache.backends.redis.RedisCache',
+            'LOCATION': f'redis://{os.environ.get("DJANGO_REDIS_URL")}',
+        }
+    }
+
+SITE_ID = 1
+BAIDU_NOTIFY_URL = os.environ.get('DJANGO_BAIDU_NOTIFY_URL') \
+                   or 'http://data.zz.baidu.com/urls?site=https://www.lylinux.net&token=1uAOGrMsUm5syDGn'
+
+
+EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
+EMAIL_USE_TLS = env_to_bool('DJANGO_EMAIL_TLS', False)
+EMAIL_USE_SSL = env_to_bool('DJANGO_EMAIL_SSL', True)
+EMAIL_HOST = os.environ.get('DJANGO_EMAIL_HOST') or 'smtp.mxhichina.com'
+EMAIL_PORT = int(os.environ.get('DJANGO_EMAIL_PORT') or 465)
+EMAIL_HOST_USER = os.environ.get('DJANGO_EMAIL_USER')
+EMAIL_HOST_PASSWORD = os.environ.get('DJANGO_EMAIL_PASSWORD')
+DEFAULT_FROM_EMAIL = EMAIL_HOST_USER
+SERVER_EMAIL = EMAIL_HOST_USER
+
+ADMINS = [('admin', os.environ.get('DJANGO_ADMIN_EMAIL') or 'admin@admin.com')]
+
+WXADMIN = os.environ.get(
+    'DJANGO_WXADMIN_PASSWORD') or '995F03AC401D6CABABAEF756FC4D43C7'
+
+LOG_PATH = os.path.join(BASE_DIR, 'logs')
+if not os.path.exists(LOG_PATH):
+    os.makedirs(LOG_PATH, exist_ok=True)
+
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': False,
+    'root': {
+        'level': 'INFO',
+        'handlers': ['console', 'log_file'],
+    },
+    'formatters': {
+        'verbose': {
+            'format': '[%(asctime)s] %(levelname)s [%(name)s.%(funcName)s:%(lineno)d %(module)s] %(message)s',
+        }
+    },
+    'filters': {
+        'require_debug_false': {
+            '()': 'django.utils.log.RequireDebugFalse',
+        },
+        'require_debug_true': {
+            '()': 'django.utils.log.RequireDebugTrue',
+        },
+    },
+    'handlers': {
+        'log_file': {
+            'level': 'INFO',
+            'class': 'logging.handlers.TimedRotatingFileHandler',
+            'filename': os.path.join(LOG_PATH, 'djangoblog.log'),
+            'when': 'D',
+            'formatter': 'verbose',
+            'interval': 1,
+            'delay': True,
+            'backupCount': 5,
+            'encoding': 'utf-8'
+        },
+        'console': {
+            'level': 'DEBUG',
+            'filters': ['require_debug_true'],
+            'class': 'logging.StreamHandler',
+            'formatter': 'verbose'
+        },
+        'null': {
+            'class': 'logging.NullHandler',
+        },
+        'mail_admins': {
+            'level': 'ERROR',
+            'filters': ['require_debug_false'],
+            'class': 'django.utils.log.AdminEmailHandler'
+        }
+    },
+    'loggers': {
+        'djangoblog': {
+            'handlers': ['log_file', 'console'],
+            'level': 'INFO',
+            'propagate': True,
+        },
+        'django.request': {
+            'handlers': ['mail_admins'],
+            'level': 'ERROR',
+            'propagate': False,
+        }
+    }
+}
+
+STATICFILES_FINDERS = (
+    'django.contrib.staticfiles.finders.FileSystemFinder',
+    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
+    # other
+    'compressor.finders.CompressorFinder',
+)
+COMPRESS_ENABLED = True
+
+
+COMPRESS_CSS_FILTERS = [
+    'compressor.filters.css_default.CssAbsoluteFilter',
+    'compressor.filters.cssmin.CSSMinFilter'
+]
+COMPRESS_JS_FILTERS = [
+    'compressor.filters.jsmin.JSMinFilter'
+]
+
+MEDIA_ROOT = os.path.join(BASE_DIR, 'uploads')
+MEDIA_URL = '/media/'
+X_FRAME_OPTIONS = 'SAMEORIGIN'
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+if os.environ.get('DJANGO_ELASTICSEARCH_HOST'):
+    ELASTICSEARCH_DSL = {
+        'default': {
+            'hosts': os.environ.get('DJANGO_ELASTICSEARCH_HOST')
+        },
+    }
+    HAYSTACK_CONNECTIONS = {
+        'default': {
+            'ENGINE': 'djangoblog.elasticsearch_backend.ElasticSearchEngine',
+        },
+    }
+
+PLUGINS_DIR = BASE_DIR / 'plugins'
+ACTIVE_PLUGINS = [
+    'article_copyright',
+    'reading_time',
+    'external_links',
+    'view_count',
+    'seo_optimizer'
+]

src/djangoblog/sitemap.py

@@ -0,0 +1,84 @@
+from django.contrib.sitemaps import Sitemap
+from django.urls import reverse
+
+from blog.models import Article, Category, Tag
+
+class StaticViewSitemap(Sitemap):
+    """
+    sh:
+    静态页面站点地图类：用于收录网站静态页面（无动态数据的页面）
+    """
+    priority = 0.5
+    changefreq = 'daily'
+
+    def items(self):
+        """返回需要收录的静态页面URL名称（对应urls.py中的name属性）"""
+        return ['blog:index', ]
+
+    def location(self, item):
+        """根据URL名称反向解析出完整URL"""
+        return reverse(item)
+
+
+class ArticleSiteMap(Sitemap):
+    """
+    文章页面站点地图类：收录所有已发布的博客文章
+    """
+    changefreq = "monthly"
+    priority = "0.6"
+
+    def items(self):
+        """返回需要收录的文章：仅筛选状态为已发布（status='p'）的文章"""
+        return Article.objects.filter(status='p')
+
+    def lastmod(self, obj):
+        """返回文章的最后修改时间，帮助搜索引擎识别更新内容"""
+        return obj.last_modify_time
+
+
+class CategorySiteMap(Sitemap):
+    """
+    分类页面站点地图类：收录所有文章分类页面
+    """
+    changefreq = "Weekly"
+    priority = "0.6"
+
+    def items(self):
+        """返回所有分类实例"""
+        return Category.objects.all()
+
+    def lastmod(self, obj):
+        """返回分类的最后修改时间"""
+        return obj.last_modify_time
+
+
+class TagSiteMap(Sitemap):
+    """
+    标签页面站点地图类：收录所有文章标签页面
+    """
+    changefreq = "Weekly"
+    priority = "0.3"
+
+    def items(self):
+        """返回所有标签实例"""
+        return Tag.objects.all()
+
+    def lastmod(self, obj):
+        """返回所有标签实例"""
+        return obj.last_modify_time
+
+
+class UserSiteMap(Sitemap):
+    """
+    用户页面站点地图类：收录所有发布过文章的作者页面
+    """
+    changefreq = "Weekly"
+    priority = "0.3"
+
+    def items(self):
+        """返回所有发布过文章的唯一作者（去重）"""
+        return list({x.author for x in Article.objects.all()})
+
+    def lastmod(self, obj):
+        """返回作者的注册时间（作为页面更新时间）"""
+        return obj.date_joined

src/djangoblog/spider_notify.py

@@ -0,0 +1,35 @@
+import logging
+
+import requests
+from django.conf import settings
+
+logger = logging.getLogger(__name__)
+
+class SpiderNotify():
+    """
+    sh:
+    搜索引擎推送工具类：用于主动向搜索引擎（目前支持百度）提交网站URL
+    实现新内容发布后快速通知搜索引擎抓取，提升收录效率
+    """
+    @staticmethod
+    def baidu_notify(urls):
+        """
+        向百度搜索引擎推送URL（批量）
+        依赖settings中配置的BAIDU_NOTIFY_URL（百度站长平台的推送接口地址）
+        urls: 待推送的URL列表（如['https://example.com/article/1/', ...]）
+        """
+        try:
+            data = '\n'.join(urls)
+            result = requests.post(settings.BAIDU_NOTIFY_URL, data=data)
+            logger.info(result.text)
+        except Exception as e:
+            logger.error(e)
+
+    @staticmethod
+    def notify(url):
+        """
+        通用推送方法（兼容单URL推送场景）
+        内部调用百度推送方法，可扩展支持其他搜索引擎
+        url: 待推送的单个URL或URL列表
+        """
+        SpiderNotify.baidu_notify(url)

src/djangoblog/tests.py

@@ -0,0 +1,41 @@
+from django.test import TestCase
+
+from djangoblog.utils import get_sha256, CommonMarkdown
+
+
+class DjangoBlogTest(TestCase):
+    """
+    sh:
+    项目核心工具类单元测试类：验证工具函数的功能正确性
+    继承Django的TestCase，提供测试环境和断言方法
+    """
+    def setUp(self):
+        """
+        测试前置准备方法：在每个测试方法执行前运行
+        此处原代码抛出未实现异常，实际使用时可添加初始化逻辑（如创建测试数据）
+        """
+        raise NotImplementedError("setUp method is not supported yet")
+
+    def test_utils(self):
+        md5 = get_sha256('test')
+        self.assertIsNotNone(md5)
+        c = CommonMarkdown.get_markdown('''
+        # Title1
+
+        ```python
+        import os
+        ```
+
+        [url](https://www.lylinux.net/)
+
+        [ddd](http://www.baidu.com)
+
+
+        ''')
+        self.assertIsNotNone(c)
+        d = {
+            'd': 'key1',
+            'd2': 'key2'
+        }
+        data = parse_dict_to_url(d)
+        self.assertIsNotNone(data)

src/djangoblog/urls.py

@@ -0,0 +1,53 @@
+from django.conf import settings
+from django.conf.urls.i18n import i18n_patterns
+from django.conf.urls.static import static
+from django.contrib.sitemaps.views import sitemap
+from django.urls import path, include
+from django.urls import re_path
+from haystack.views import search_view_factory
+
+from blog.views import EsSearchView
+from djangoblog.admin_site import admin_site
+from djangoblog.elasticsearch_backend import ElasticSearchModelSearchForm
+from djangoblog.feeds import DjangoBlogFeed
+from djangoblog.sitemap import ArticleSiteMap, CategorySiteMap, StaticViewSitemap, TagSiteMap, UserSiteMap
+
+"""sh:站点地图集合：关联各类型页面的站点地图类"""
+sitemaps = {
+    'blog': ArticleSiteMap,
+    'Category': CategorySiteMap,
+    'Tag': TagSiteMap,
+    'User': UserSiteMap,
+    'static': StaticViewSitemap
+}
+
+"""自定义错误页面视图（覆盖Django默认错误页）"""
+handler404 = 'blog.views.page_not_found_view'
+handler500 = 'blog.views.server_error_view'
+handle403 = 'blog.views.permission_denied_view'
+
+"""基础URL配置（无语言前缀）"""
+urlpatterns = [
+    path('i18n/', include('django.conf.urls.i18n')),
+]
+
+"""多语言URL配置（自动添加语言前缀，如/en/、/zh-hans/）"""
+urlpatterns += i18n_patterns(
+    re_path(r'^admin/', admin_site.urls),
+    re_path(r'', include('blog.urls', namespace='blog')),
+    re_path(r'mdeditor/', include('mdeditor.urls')),
+    re_path(r'', include('comments.urls', namespace='comment')),
+    re_path(r'', include('accounts.urls', namespace='account')),
+    re_path(r'', include('oauth.urls', namespace='oauth')),
+    re_path(r'^sitemap\.xml$', sitemap, {'sitemaps': sitemaps},
+            name='django.contrib.sitemaps.views.sitemap'),
+    re_path(r'^feed/$', DjangoBlogFeed()),
+    re_path(r'^rss/$', DjangoBlogFeed()),
+    re_path('^search', search_view_factory(view_class=EsSearchView, form_class=ElasticSearchModelSearchForm),
+            name='search'),
+    re_path(r'', include('servermanager.urls', namespace='servermanager')),
+    re_path(r'', include('owntracks.urls', namespace='owntracks'))
+    , prefix_default_language=False) + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
+if settings.DEBUG:
+    urlpatterns += static(settings.MEDIA_URL,
+                          document_root=settings.MEDIA_ROOT)

src/djangoblog/utils.py

@@ -0,0 +1,271 @@
+import logging
+import os
+import random
+import string
+import uuid
+from hashlib import sha256
+
+import bleach
+import markdown
+import requests
+from django.conf import settings
+from django.contrib.sites.models import Site
+from django.core.cache import cache
+from django.templatetags.static import static
+
+logger = logging.getLogger(__name__)
+
+
+def get_max_articleid_commentid():
+    """
+    sh:
+    获取当前最大的文章ID和评论ID
+    用于数据统计或初始化场景
+    """
+    from blog.models import Article
+    from comments.models import Comment
+    return (Article.objects.latest().pk, Comment.objects.latest().pk)
+
+
+def get_sha256(str):
+    """
+    对字符串进行SHA256加密
+    :param str: 待加密字符串
+    :return: 加密后的十六进制字符串（64位）
+    """
+    m = sha256(str.encode('utf-8'))
+    return m.hexdigest()
+
+
+def cache_decorator(expiration=3 * 60):
+    """
+    缓存装饰器：为函数添加缓存功能，减少重复计算/数据库查询
+    :param expiration: 缓存过期时间（秒），默认3分钟
+    :return: 装饰器函数
+    """
+    def wrapper(func):
+        def news(*args, **kwargs):
+            try:
+                view = args[0]
+                key = view.get_cache_key()
+            except Exception:
+                key = None
+            if not key:
+                unique_str = repr((func, args, kwargs))
+
+                m = sha256(unique_str.encode('utf-8'))
+                key = m.hexdigest()
+            value = cache.get(key)
+            if value is not None:
+                if str(value) == '__default_cache_value__':
+                    return None
+                else:
+                    return value
+            else:
+                logger.debug(
+                    'cache_decorator set cache:%s key:%s' %
+                    (func.__name__, key))
+                value = func(*args, **kwargs)
+                if value is None:
+                    cache.set(key, '__default_cache_value__', expiration)
+                else:
+                    cache.set(key, value, expiration)
+                return value
+
+        return news
+
+    return wrapper
+
+
+def expire_view_cache(path, servername, serverport, key_prefix=None):
+    '''
+    刷新视图缓存
+    :param path:url路径
+    :param servername:host
+    :param serverport:端口
+    :param key_prefix:前缀
+    :return:是否成功
+    '''
+    from django.http import HttpRequest
+    from django.utils.cache import get_cache_key
+
+    request = HttpRequest()
+    request.META = {'SERVER_NAME': servername, 'SERVER_PORT': serverport}
+    request.path = path
+
+    key = get_cache_key(request, key_prefix=key_prefix, cache=cache)
+    if key:
+        logger.info('expire_view_cache:get key:{path}'.format(path=path))
+        if cache.get(key):
+            cache.delete(key)
+        return True
+    return False
+
+
+@cache_decorator()
+def get_current_site():
+    """获取当前站点信息（从Django的Site模型）"""
+    site = Site.objects.get_current()
+    return site
+
+
+class CommonMarkdown:
+    """Markdown解析工具类：将Markdown文本转为HTML，并支持生成目录"""
+    @staticmethod
+    def _convert_markdown(value):
+        """
+        内部转换方法：使用markdown库解析文本
+        :param value: Markdown格式文本
+        :return: (转换后的HTML内容, 目录HTML)
+        """
+        md = markdown.Markdown(
+            extensions=[
+                'extra',
+                'codehilite',
+                'toc',
+                'tables',
+            ]
+        )
+        body = md.convert(value)
+        toc = md.toc
+        return body, toc
+
+    @staticmethod
+    def get_markdown_with_toc(value):
+        body, toc = CommonMarkdown._convert_markdown(value)
+        return body, toc
+
+    @staticmethod
+    def get_markdown(value):
+        body, _ = CommonMarkdown._convert_markdown(value)
+        return body
+
+
+def send_email(emailto, title, content):
+    """
+    发送邮件（通过信号机制解耦，避免直接依赖邮件发送逻辑）
+    :param emailto: 收件人列表
+    :param title: 邮件标题
+    :param content: 邮件内容（HTML格式）
+    """
+    from djangoblog.blog_signals import send_email_signal
+    send_email_signal.send(
+        send_email.__class__,
+        emailto=emailto,
+        title=title,
+        content=content)
+
+
+def generate_code() -> str:
+    """生成随机数验证码"""
+    return ''.join(random.sample(string.digits, 6))
+
+
+def parse_dict_to_url(dict):
+    """
+    将字典转换为URL查询参数字符串
+    :param dict: 键值对字典（如{'name': 'test', 'age': 18}）
+    :return: URL编码后的参数串（如'name=test&age=18'）
+    """
+    from urllib.parse import quote
+    url = '&'.join(['{}={}'.format(quote(k, safe='/'), quote(v, safe='/'))
+                    for k, v in dict.items()])
+    return url
+
+
+def get_blog_setting():
+    """
+    获取博客系统设置（带缓存）
+    若未初始化设置，自动创建默认配置
+    """
+    value = cache.get('get_blog_setting')
+    if value:
+        return value
+    else:
+        from blog.models import BlogSettings
+        if not BlogSettings.objects.count():
+            setting = BlogSettings()
+            setting.site_name = 'djangoblog'
+            setting.site_description = '基于Django的博客系统'
+            setting.site_seo_description = '基于Django的博客系统'
+            setting.site_keywords = 'Django,Python'
+            setting.article_sub_length = 300
+            setting.sidebar_article_count = 10
+            setting.sidebar_comment_count = 5
+            setting.show_google_adsense = False
+            setting.open_site_comment = True
+            setting.analytics_code = ''
+            setting.beian_code = ''
+            setting.show_gongan_code = False
+            setting.comment_need_review = False
+            setting.save()
+        value = BlogSettings.objects.first()
+        logger.info('set cache get_blog_setting')
+        cache.set('get_blog_setting', value)
+        return value
+
+
+def save_user_avatar(url):
+    """
+    保存用户头像
+    :param url:头像url
+    :return: 本地路径
+    """
+    logger.info(url)
+
+    try:
+        basedir = os.path.join(settings.STATICFILES, 'avatar')
+        rsp = requests.get(url, timeout=2)
+        if rsp.status_code == 200:
+            if not os.path.exists(basedir):
+                os.makedirs(basedir)
+
+            image_extensions = ['.jpg', '.png', 'jpeg', '.gif']
+            isimage = len([i for i in image_extensions if url.endswith(i)]) > 0
+            ext = os.path.splitext(url)[1] if isimage else '.jpg'
+            save_filename = str(uuid.uuid4().hex) + ext
+            logger.info('保存用户头像:' + basedir + save_filename)
+            with open(os.path.join(basedir, save_filename), 'wb+') as file:
+                file.write(rsp.content)
+            return static('avatar/' + save_filename)
+    except Exception as e:
+        logger.error(e)
+        return static('blog/img/avatar.png')
+
+
+def delete_sidebar_cache():
+    """删除侧边栏相关缓存（当数据更新时调用，确保显示最新内容）"""
+    from blog.models import LinkShowType
+    keys = ["sidebar" + x for x in LinkShowType.values]
+    for k in keys:
+        logger.info('delete sidebar key:' + k)
+        cache.delete(k)
+
+
+def delete_view_cache(prefix, keys):
+    """
+    删除模板片段缓存
+    :param prefix: 缓存前缀（与模板中cache标签的前缀一致）
+    :param keys: 缓存键参数（与模板中cache标签的参数一致）
+    """
+    from django.core.cache.utils import make_template_fragment_key
+    key = make_template_fragment_key(prefix, keys)
+    cache.delete(key)
+
+
+def get_resource_url():
+    """获取静态资源基础URL（优先使用配置，否则自动生成）"""
+    if settings.STATIC_URL:
+        return settings.STATIC_URL
+    else:
+        site = get_current_site()
+        return 'http://' + site.domain + '/static/'
+
+
+ALLOWED_TAGS = ['a', 'abbr', 'acronym', 'b', 'blockquote', 'code', 'em', 'i', 'li', 'ol', 'pre', 'strong', 'ul', 'h1',
+                'h2', 'p']
+ALLOWED_ATTRIBUTES = {'a': ['href', 'title'], 'abbr': ['title'], 'acronym': ['title']}
+
+
+def sanitize_html(html):
+    return bleach.clean(html, tags=ALLOWED_TAGS, attributes=ALLOWED_ATTRIBUTES)

src/djangoblog/whoosh_cn_backend.py

@@ -0,0 +1,944 @@
+# encoding: utf-8
+
+from __future__ import absolute_import, division, print_function, unicode_literals
+
+import json
+import os
+import re
+import shutil
+import threading
+import warnings
+
+import six
+from django.conf import settings
+from django.core.exceptions import ImproperlyConfigured
+from datetime import datetime
+from django.utils.encoding import force_str
+from haystack.backends import BaseEngine, BaseSearchBackend, BaseSearchQuery, EmptyResults, log_query
+from haystack.constants import DJANGO_CT, DJANGO_ID, ID
+from haystack.exceptions import MissingDependency, SearchBackendError, SkipDocument
+from haystack.inputs import Clean, Exact, PythonData, Raw
+from haystack.models import SearchResult
+from haystack.utils import get_identifier, get_model_ct
+from haystack.utils import log as logging
+from haystack.utils.app_loading import haystack_get_model
+from jieba.analyse import ChineseAnalyzer
+from whoosh import index
+from whoosh.analysis import StemmingAnalyzer
+from whoosh.fields import BOOLEAN, DATETIME, IDLIST, KEYWORD, NGRAM, NGRAMWORDS, NUMERIC, Schema, TEXT
+from whoosh.fields import ID as WHOOSH_ID
+from whoosh.filedb.filestore import FileStorage, RamStorage
+from whoosh.highlight import ContextFragmenter, HtmlFormatter
+from whoosh.highlight import highlight as whoosh_highlight
+from whoosh.qparser import QueryParser
+from whoosh.searching import ResultsPage
+from whoosh.writing import AsyncWriter
+
+try:
+    import whoosh
+except ImportError:
+    raise MissingDependency(
+        "The 'whoosh' backend requires the installation of 'Whoosh'. Please refer to the documentation.")
+
+if not hasattr(whoosh, '__version__') or whoosh.__version__ < (2, 5, 0):
+    raise MissingDependency(
+        "The 'whoosh' backend requires version 2.5.0 or greater.")
+
+"""日期时间格式正则（用于解析Whoosh返回的日期字符串）"""
+DATETIME_REGEX = re.compile(
+    '^(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2})T(?P<hour>\d{2}):(?P<minute>\d{2}):(?P<second>\d{2})(\.\d{3,6}Z?)?$')
+"""线程本地存储（用于RAM缓存）"""
+LOCALS = threading.local()
+LOCALS.RAM_STORE = None
+
+
+class WhooshHtmlFormatter(HtmlFormatter):
+    """
+    自定义HTML高亮格式化器：简化Whoosh默认格式化器
+    确保与其他搜索后端（Solr、Elasticsearch）的高亮结果格式一致
+    """
+    template = '<%(tag)s>%(t)s</%(tag)s>'
+
+
+class WhooshSearchBackend(BaseSearchBackend):
+
+    RESERVED_WORDS = (
+        'AND',
+        'NOT',
+        'OR',
+        'TO',
+    )
+
+    RESERVED_CHARACTERS = (
+        '\\', '+', '-', '&&', '||', '!', '(', ')', '{', '}',
+        '[', ']', '^', '"', '~', '*', '?', ':', '.',
+    )
+
+    def __init__(self, connection_alias, **connection_options):
+        super(
+            WhooshSearchBackend,
+            self).__init__(
+            connection_alias,
+            **connection_options)
+        self.setup_complete = False
+        self.use_file_storage = True
+        self.post_limit = getattr(
+            connection_options,
+            'POST_LIMIT',
+            128 * 1024 * 1024)
+        self.path = connection_options.get('PATH')
+
+        """若配置为非文件存储，则使用RAM存储"""
+        if connection_options.get('STORAGE', 'file') != 'file':
+            self.use_file_storage = False
+        """文件存储模式下必须指定路径"""
+        if self.use_file_storage and not self.path:
+            raise ImproperlyConfigured(
+                "You must specify a 'PATH' in your settings for connection '%s'." %
+                connection_alias)
+
+        self.log = logging.getLogger('haystack')
+
+    def setup(self):
+        """
+        延迟初始化：在首次使用时创建索引存储和Schema
+        避免项目启动时过早加载资源
+        """
+        from haystack import connections
+        new_index = False
+
+        if self.use_file_storage and not os.path.exists(self.path):
+            os.makedirs(self.path)
+            new_index = True
+
+        if self.use_file_storage and not os.access(self.path, os.W_OK):
+            raise IOError(
+                "The path to your Whoosh index '%s' is not writable for the current user/group." %
+                self.path)
+
+        if self.use_file_storage:
+            self.storage = FileStorage(self.path)
+        else:
+            global LOCALS
+
+            if getattr(LOCALS, 'RAM_STORE', None) is None:
+                LOCALS.RAM_STORE = RamStorage()
+
+            self.storage = LOCALS.RAM_STORE
+
+        self.content_field_name, self.schema = self.build_schema(
+            connections[self.connection_alias].get_unified_index().all_searchfields())
+        self.parser = QueryParser(self.content_field_name, schema=self.schema)
+
+        if new_index is True:
+            self.index = self.storage.create_index(self.schema)
+        else:
+            try:
+                self.index = self.storage.open_index(schema=self.schema)
+            except index.EmptyIndexError:
+                self.index = self.storage.create_index(self.schema)
+
+        self.setup_complete = True
+
+    def _create_field(self, field_class):
+        """根据字段类型创建对应的Whoosh字段"""
+        if field_class.is_multivalued:
+            if field_class.indexed is False:
+                return IDLIST(stored=True, field_boost=field_class.boost)
+            else:
+                return KEYWORD(stored=True, commas=True, scorable=True, field_boost=field_class.boost)
+        elif field_class.field_type in ['date', 'datetime']:
+            return DATETIME(stored=field_class.stored, sortable=True)
+        elif field_class.field_type == 'integer':
+            return NUMERIC(stored=field_class.stored, numtype=int, field_boost=field_class.boost)
+        elif field_class.field_type == 'float':
+            return NUMERIC(stored=field_class.stored, numtype=float, field_boost=field_class.boost)
+        elif field_class.field_type == 'boolean':
+            return BOOLEAN(stored=field_class.stored)
+        elif field_class.field_type == 'ngram':
+            return NGRAM(minsize=3, maxsize=15, stored=field_class.stored, field_boost=field_class.boost)
+        elif field_class.field_type == 'edge_ngram':
+            return NGRAMWORDS(minsize=2, maxsize=15, at='start', stored=field_class.stored,
+                              field_boost=field_class.boost)
+        else:
+            return TEXT(stored=True, analyzer=ChineseAnalyzer(), field_boost=field_class.boost, sortable=True)
+
+    def build_schema(self, fields):
+        """初始化固定字段"""
+        schema_fields = {
+            ID: WHOOSH_ID(stored=True, unique=True),
+            DJANGO_CT: WHOOSH_ID(stored=True),
+            DJANGO_ID: WHOOSH_ID(stored=True),
+        }
+        initial_key_count = len(schema_fields)
+        content_field_name = ''
+
+        """遍历并创建动态字段"""
+        for field_name, field_class in fields.items():
+            field = _create_field(field_class)
+            schema_fields[field_class.index_fieldname] = field
+            if field_class.document is True:
+                content_field_name = field_class.index_fieldname
+                field.spelling = True
+
+        """校验字段数量"""
+        if len(schema_fields) <= initial_key_count:
+            raise SearchBackendError(
+                "No fields were found in any search_indexes. Please correct this before attempting to search."
+            )
+
+        return (content_field_name, Schema(**schema_fields))
+
+    def _process_doc(self, doc):
+        """处理文档字段的编码和boost字段清理"""
+        for key in doc:
+            doc[key] = self._from_python(doc[key])
+        if 'boost' in doc:
+            del doc['boost']
+        return doc
+
+    def _handle_update_error(self, e, obj, index):
+        """处理更新文档时的异常"""
+        if not self.silently_fail:
+            raise
+        self.log.error(
+            u"%s while preparing object for update" % e.__class__.__name__,
+            exc_info=True,
+            extra={
+                "data": {
+                    "index": index,
+                    "object": get_identifier(obj)}})
+
+    def update(self, index, iterable, commit=True):
+        if not self.setup_complete:
+            self.setup()
+
+        self.index = self.index.refresh()
+        writer = AsyncWriter(self.index)
+
+        for obj in iterable:
+            try:
+                doc = index.full_prepare(obj)
+            except SkipDocument:
+                self.log.debug(u"Indexing for object `%s` skipped", obj)
+                continue  # 跳过当前对象，处理下一个
+            # 处理文档格式
+            processed_doc = self._process_doc(doc)
+            # 尝试更新文档
+            try:
+                writer.update_document(**processed_doc)
+            except Exception as e:
+                self._handle_update_error(e, obj, index)
+
+        if len(iterable) > 0:
+            writer.commit()
+
+    def remove(self, obj_or_string, commit=True):
+        if not self.setup_complete:
+            self.setup()
+
+        self.index = self.index.refresh()
+        whoosh_id = get_identifier(obj_or_string)
+
+        try:
+            self.index.delete_by_query(
+                q=self.parser.parse(
+                    u'%s:"%s"' %
+                    (ID, whoosh_id)))
+        except Exception as e:
+            if not self.silently_fail:
+                raise
+
+            self.log.error(
+                "Failed to remove document '%s' from Whoosh: %s",
+                whoosh_id,
+                e,
+                exc_info=True)
+
+    def clear(self, models=None, commit=True):
+        if not self.setup_complete:
+            self.setup()
+
+        self.index = self.index.refresh()
+
+        if models is not None:
+            assert isinstance(models, (list, tuple))
+
+        try:
+            if models is None:
+                self.delete_index()
+            else:
+                models_to_delete = []
+
+                for model in models:
+                    models_to_delete.append(
+                        u"%s:%s" %
+                        (DJANGO_CT, get_model_ct(model)))
+
+                self.index.delete_by_query(
+                    q=self.parser.parse(
+                        u" OR ".join(models_to_delete)))
+        except Exception as e:
+            if not self.silently_fail:
+                raise
+
+            if models is not None:
+                self.log.error(
+                    "Failed to clear Whoosh index of models '%s': %s",
+                    ','.join(models_to_delete),
+                    e,
+                    exc_info=True)
+            else:
+                self.log.error(
+                    "Failed to clear Whoosh index: %s", e, exc_info=True)
+
+    def delete_index(self):
+        if self.use_file_storage and os.path.exists(self.path):
+            shutil.rmtree(self.path)
+        elif not self.use_file_storage:
+            self.storage.clean()
+
+        self.setup()
+
+    def optimize(self):
+        if not self.setup_complete:
+            self.setup()
+
+        self.index = self.index.refresh()
+        self.index.optimize()
+
+    def calculate_page(self, start_offset=0, end_offset=None):
+        if end_offset is not None and end_offset <= 0:
+            end_offset = 1
+
+        page_num = 0
+
+        if end_offset is None:
+            end_offset = 1000000
+
+        if start_offset is None:
+            start_offset = 0
+
+        page_length = end_offset - start_offset
+
+        if page_length and page_length > 0:
+            page_num = int(start_offset / page_length)
+
+        page_num += 1
+        return page_num, page_length
+
+    @log_query
+    def _handle_sorting(self, sort_by):
+        """处理排序逻辑，返回排序字段和是否逆序"""
+        if sort_by is None:
+            return None, False
+
+        reverse_counter = sum(1 for order_by in sort_by if order_by.startswith('-'))
+        if reverse_counter and reverse_counter != len(sort_by):
+            raise SearchBackendError("Whoosh requires all order_by fields to use the same sort direction")
+
+        sort_by_list = [order_by[1:] if order_by.startswith('-') else order_by for order_by in sort_by]
+        reverse = sort_by[0].startswith('-')
+        return sort_by_list[0], reverse
+
+    def _handle_model_filters(self, models, limit_to_registered_models):
+        """处理模型过滤逻辑，返回窄查询集合"""
+        if limit_to_registered_models is None:
+            limit_to_registered_models = getattr(settings, 'HAYSTACK_LIMIT_TO_REGISTERED_MODELS', True)
+
+        model_choices = []
+        if models and len(models):
+            model_choices = sorted(get_model_ct(model) for model in models)
+        elif limit_to_registered_models:
+            model_choices = self.build_models_list()
+
+        narrow_queries = set()
+        if len(model_choices) > 0:
+            narrow_queries.add(' OR '.join(['%s:%s' % (DJANGO_CT, rm) for rm in model_choices]))
+        return narrow_queries
+
+    def _process_narrow_queries(self, narrow_queries):
+        """处理窄查询，返回过滤后的结果集"""
+        if not narrow_queries:
+            return None
+
+        narrow_searcher = self.index.searcher()
+        narrowed_results = None
+        for nq in narrow_queries:
+            recent_narrowed_results = narrow_searcher.search(self.parser.parse(force_str(nq)), limit=None)
+            if len(recent_narrowed_results) <= 0:
+                narrow_searcher.close()
+                return {
+                    'results': [],
+                    'hits': 0,
+                }
+            if narrowed_results:
+                narrowed_results.filter(recent_narrowed_results)
+            else:
+                narrowed_results = recent_narrowed_results
+        return narrowed_results, narrow_searcher
+
+    def _execute_search(self, parsed_query, page_num, page_length, sort_by, reverse, narrowed_results):
+        """执行搜索并处理原始结果"""
+        searcher = self.index.searcher()
+        search_kwargs = {
+            'pagelen': page_length,
+            'sortedby': sort_by,
+            'reverse': reverse,
+        }
+        if narrowed_results is not None:
+            search_kwargs['filter'] = narrowed_results
+
+        try:
+            raw_page = searcher.search_page(parsed_query, page_num, **search_kwargs)
+        except ValueError:
+            if not self.silently_fail:
+                raise
+            searcher.close()
+            return {
+                'results': [],
+                'hits': 0,
+                'spelling_suggestion': None,
+            }
+
+        if raw_page.pagenum < page_num:
+            searcher.close()
+            return {
+                'results': [],
+                'hits': 0,
+                'spelling_suggestion': None,
+            }
+
+        results = self._process_results(
+            raw_page,
+            highlight=highlight,
+            query_string=query_string,
+            spelling_query=spelling_query,
+            result_class=result_class)
+        searcher.close()
+        return results
+
+    def _get_spelling_suggestion(self, query_string):
+        """获取拼写建议"""
+        if not self.include_spelling:
+            return None
+        return self.create_spelling_suggestion(query_string) if query_string else None
+
+    def _return_empty_results(self, query_string):
+        """返回空结果集及拼写建议"""
+        spelling_suggestion = self._get_spelling_suggestion(query_string)
+        return {
+            'results': [],
+            'hits': 0,
+            'spelling_suggestion': spelling_suggestion,
+        }
+
+    def search(
+            self,
+            query_string,
+            sort_by=None,
+            start_offset=0,
+            end_offset=None,
+            fields='',
+            highlight=False,
+            facets=None,
+            date_facets=None,
+            query_facets=None,
+            narrow_queries=None,
+            spelling_query=None,
+            within=None,
+            dwithin=None,
+            distance_point=None,
+            models=None,
+            limit_to_registered_models=None,
+            result_class=None,
+            **kwargs
+    ):
+        if not self.setup_complete:
+            self.setup()
+
+        """处理空查询和短查询"""
+        if len(query_string) == 0 or (len(query_string) <= 1 and query_string != u'*'):
+            return self._return_empty_results(query_string)
+        query_string = force_str(query_string)
+
+        """处理排序"""
+        sort_field, reverse = self._handle_sorting(sort_by)
+
+        """处理分面警告"""
+        for facet_type in [facets, date_facets, query_facets]:
+            if facet_type is not None:
+                warnings.warn(f"Whoosh does not handle {facet_type.__class__.__name__} faceting.", Warning,
+                              stacklevel=2)
+
+        """处理模型过滤和窄查询"""
+        model_narrow_queries = self._handle_model_filters(models, limit_to_registered_models)
+        if narrow_queries is None:
+            narrow_queries = set()
+        narrow_queries.update(model_narrow_queries)
+        narrowed_results, narrow_searcher = self._process_narrow_queries(narrow_queries)
+        if isinstance(narrowed_results, dict):
+            return narrowed_results
+
+        """执行搜索前的空索引校验"""
+        self.index = self.index.refresh()
+        if not self.index.doc_count():
+            return self._return_empty_results(query_string)
+
+        """执行搜索"""
+        searcher = self.index.searcher()
+        parsed_query = self.parser.parse(query_string)
+        if parsed_query is None:
+            searcher.close()
+            return self._return_empty_results(query_string)
+
+        page_num, page_length = self.calculate_page(start_offset, end_offset)
+        results = self._execute_search(parsed_query, page_num, page_length, sort_field, reverse, narrowed_results)
+
+        """关闭窄查询搜索器"""
+        if hasattr(narrow_searcher, 'close'):
+            narrow_searcher.close()
+
+        return results
+
+
+    def more_like_this(
+            self,
+            model_instance,
+            additional_query_string=None,
+            start_offset=0,
+            end_offset=None,
+            models=None,
+            limit_to_registered_models=None,
+            result_class=None,
+            **kwargs):
+        if not self.setup_complete:
+            self.setup()
+
+        field_name = self.content_field_name
+        narrow_queries = set()
+        narrowed_results = None
+        self.index = self.index.refresh()
+
+        if limit_to_registered_models is None:
+            limit_to_registered_models = getattr(
+                settings, 'HAYSTACK_LIMIT_TO_REGISTERED_MODELS', True)
+
+        if models and len(models):
+            model_choices = sorted(get_model_ct(model) for model in models)
+        elif limit_to_registered_models:
+            # Using narrow queries, limit the results to only models handled
+            # with the current routers.
+            model_choices = self.build_models_list()
+        else:
+            model_choices = []
+
+        if len(model_choices) > 0:
+            if narrow_queries is None:
+                narrow_queries = set()
+
+            narrow_queries.add(' OR '.join(
+                ['%s:%s' % (DJANGO_CT, rm) for rm in model_choices]))
+
+        if additional_query_string and additional_query_string != '*':
+            narrow_queries.add(additional_query_string)
+
+        narrow_searcher = None
+
+        if narrow_queries is not None:
+            narrow_searcher = self.index.searcher()
+
+            for nq in narrow_queries:
+                recent_narrowed_results = narrow_searcher.search(
+                    self.parser.parse(force_str(nq)), limit=None)
+
+                if len(recent_narrowed_results) <= 0:
+                    return {
+                        'results': [],
+                        'hits': 0,
+                    }
+
+                if narrowed_results:
+                    narrowed_results.filter(recent_narrowed_results)
+                else:
+                    narrowed_results = recent_narrowed_results
+
+        page_num, page_length = self.calculate_page(start_offset, end_offset)
+
+        self.index = self.index.refresh()
+        raw_results = EmptyResults()
+
+        if self.index.doc_count():
+            query = "%s:%s" % (ID, get_identifier(model_instance))
+            searcher = self.index.searcher()
+            parsed_query = self.parser.parse(query)
+            results = searcher.search(parsed_query)
+
+            if len(results):
+                raw_results = results[0].more_like_this(
+                    field_name, top=end_offset)
+
+            # Handle the case where the results have been narrowed.
+            if narrowed_results is not None and hasattr(raw_results, 'filter'):
+                raw_results.filter(narrowed_results)
+
+        try:
+            raw_page = ResultsPage(raw_results, page_num, page_length)
+        except ValueError:
+            if not self.silently_fail:
+                raise
+
+            return {
+                'results': [],
+                'hits': 0,
+                'spelling_suggestion': None,
+            }
+
+        if raw_page.pagenum < page_num:
+            return {
+                'results': [],
+                'hits': 0,
+                'spelling_suggestion': None,
+            }
+
+        results = self._process_results(raw_page, result_class=result_class)
+        searcher.close()
+
+        if hasattr(narrow_searcher, 'close'):
+            narrow_searcher.close()
+
+        return results
+
+    def _process_results(
+            self,
+            raw_page,
+            highlight=False,
+            query_string='',
+            spelling_query=None,
+            result_class=None):
+        from haystack import connections
+        results = []
+
+        hits = len(raw_page)
+
+        if result_class is None:
+            result_class = SearchResult
+
+        facets = {}
+        spelling_suggestion = None
+        unified_index = connections[self.connection_alias].get_unified_index()
+        indexed_models = unified_index.get_indexed_models()
+
+        for doc_offset, raw_result in enumerate(raw_page):
+            score = raw_page.score(doc_offset) or 0
+            app_label, model_name = raw_result[DJANGO_CT].split('.')
+            additional_fields = {}
+            model = haystack_get_model(app_label, model_name)
+
+            if model and model in indexed_models:
+                for key, value in raw_result.items():
+                    index = unified_index.get_index(model)
+                    string_key = str(key)
+
+                    if string_key in index.fields and hasattr(
+                            index.fields[string_key], 'convert'):
+                        # Special-cased due to the nature of KEYWORD fields.
+                        if index.fields[string_key].is_multivalued:
+                            if value is None or len(value) == 0:
+                                additional_fields[string_key] = []
+                            else:
+                                additional_fields[string_key] = value.split(
+                                    ',')
+                        else:
+                            additional_fields[string_key] = index.fields[string_key].convert(
+                                value)
+                    else:
+                        additional_fields[string_key] = self._to_python(value)
+
+                del (additional_fields[DJANGO_CT])
+                del (additional_fields[DJANGO_ID])
+
+                if highlight:
+                    sa = StemmingAnalyzer()
+                    formatter = WhooshHtmlFormatter('em')
+                    terms = [token.text for token in sa(query_string)]
+
+                    whoosh_result = whoosh_highlight(
+                        additional_fields.get(self.content_field_name),
+                        terms,
+                        sa,
+                        ContextFragmenter(),
+                        formatter
+                    )
+                    additional_fields['highlighted'] = {
+                        self.content_field_name: [whoosh_result],
+                    }
+
+                result = result_class(
+                    app_label,
+                    model_name,
+                    raw_result[DJANGO_ID],
+                    score,
+                    **additional_fields)
+                results.append(result)
+            else:
+                hits -= 1
+
+        if self.include_spelling:
+            if spelling_query:
+                spelling_suggestion = self.create_spelling_suggestion(
+                    spelling_query)
+            else:
+                spelling_suggestion = self.create_spelling_suggestion(
+                    query_string)
+
+        return {
+            'results': results,
+            'hits': hits,
+            'facets': facets,
+            'spelling_suggestion': spelling_suggestion,
+        }
+
+    def create_spelling_suggestion(self, query_string):
+        spelling_suggestion = None
+        reader = self.index.reader()
+        corrector = reader.corrector(self.content_field_name)
+        cleaned_query = force_str(query_string)
+
+        if not query_string:
+            return spelling_suggestion
+
+        # Clean the string.
+        for rev_word in self.RESERVED_WORDS:
+            cleaned_query = cleaned_query.replace(rev_word, '')
+
+        for rev_char in self.RESERVED_CHARACTERS:
+            cleaned_query = cleaned_query.replace(rev_char, '')
+
+        # Break it down.
+        query_words = cleaned_query.split()
+        suggested_words = []
+
+        for word in query_words:
+            suggestions = corrector.suggest(word, limit=1)
+
+            if len(suggestions) > 0:
+                suggested_words.append(suggestions[0])
+
+        spelling_suggestion = ' '.join(suggested_words)
+        return spelling_suggestion
+
+    def _from_python(self, value):
+        if hasattr(value, 'strftime'):
+            if not hasattr(value, 'hour'):
+                value = datetime(value.year, value.month, value.day, 0, 0, 0)
+        elif isinstance(value, bool):
+            if value:
+                value = 'true'
+            else:
+                value = 'false'
+        elif isinstance(value, (list, tuple)):
+            value = u','.join([force_str(v) for v in value])
+        elif isinstance(value, (six.integer_types, float)):
+            # Leave it alone.
+            pass
+        else:
+            value = force_str(value)
+        return value
+
+    def _to_python(self, value):
+        if value == 'true':
+            return True
+        elif value == 'false':
+            return False
+
+        if value and isinstance(value, six.string_types):
+            possible_datetime = DATETIME_REGEX.search(value)
+
+            if possible_datetime:
+                date_values = possible_datetime.groupdict()
+
+                for dk, dv in date_values.items():
+                    date_values[dk] = int(dv)
+
+                return datetime(
+                    date_values['year'],
+                    date_values['month'],
+                    date_values['day'],
+                    date_values['hour'],
+                    date_values['minute'],
+                    date_values['second'])
+
+        try:
+            converted_value = json.loads(value)
+
+            if isinstance(
+                    converted_value,
+                    (list,
+                     tuple,
+                     set,
+                     dict,
+                     six.integer_types,
+                     float,
+                     complex)):
+                return converted_value
+        except (SyntaxError, ValueError):
+            pass
+        except BaseException as e:
+            """对SystemExit、KeyboardInterrupt等系统级异常重新抛出"""
+            if isinstance(e, (SystemExit, KeyboardInterrupt)):
+                raise
+        return value
+
+
+class WhooshSearchQuery(BaseSearchQuery):
+    def _convert_datetime(self, date):
+        if hasattr(date, 'hour'):
+            return force_str(date.strftime('%Y%m%d%H%M%S'))
+        else:
+            return force_str(date.strftime('%Y%m%d000000'))
+
+    def clean(self, query_fragment):
+        words = query_fragment.split()
+        cleaned_words = []
+
+        for word in words:
+            if word in self.backend.RESERVED_WORDS:
+                word = word.replace(word, word.lower())
+
+            for char in self.backend.RESERVED_CHARACTERS:
+                if char in word:
+                    word = "'%s'" % word
+                    break
+
+            cleaned_words.append(word)
+
+        return ' '.join(cleaned_words)
+
+    def build_query_fragment(self, field, filter_type, value):
+        from haystack import connections
+        query_frag = ''
+        is_datetime = False
+
+        if not hasattr(value, 'input_type_name'):
+            if hasattr(value, 'values_list'):
+                value = list(value)
+
+            if hasattr(value, 'strftime'):
+                is_datetime = True
+
+            if isinstance(value, six.string_types) and value != ' ':
+                value = Clean(value)
+            else:
+                value = PythonData(value)
+
+        prepared_value = value.prepare(self)
+
+        if not isinstance(prepared_value, (set, list, tuple)):
+
+            prepared_value = self.backend._from_python(prepared_value)
+
+        if field == 'content':
+            index_fieldname = ''
+        else:
+            index_fieldname = u'%s:' % connections[self._using].get_unified_index(
+            ).get_index_fieldname(field)
+
+        filter_types = {
+            'content': '%s',
+            'contains': '*%s*',
+            'endswith': "*%s",
+            'startswith': "%s*",
+            'exact': '%s',
+            'gt': "{%s to}",
+            'gte': "[%s to]",
+            'lt': "{to %s}",
+            'lte': "[to %s]",
+            'fuzzy': u'%s~',
+        }
+
+        if value.post_process is False:
+            query_frag = prepared_value
+        else:
+            if filter_type in [
+                'content',
+                'contains',
+                'startswith',
+                'endswith',
+                'fuzzy']:
+                if value.input_type_name == 'exact':
+                    query_frag = prepared_value
+                else:
+
+                    terms = []
+
+                    if isinstance(prepared_value, six.string_types):
+                        possible_values = prepared_value.split(' ')
+                    else:
+                        if is_datetime is True:
+                            prepared_value = self._convert_datetime(
+                                prepared_value)
+
+                        possible_values = [prepared_value]
+
+                    for possible_value in possible_values:
+                        terms.append(
+                            filter_types[filter_type] %
+                            self.backend._from_python(possible_value))
+
+                    if len(terms) == 1:
+                        query_frag = terms[0]
+                    else:
+                        query_frag = u"(%s)" % " AND ".join(terms)
+            elif filter_type == 'in':
+                in_options = []
+
+                for possible_value in prepared_value:
+                    is_datetime = False
+
+                    if hasattr(possible_value, 'strftime'):
+                        is_datetime = True
+
+                    pv = self.backend._from_python(possible_value)
+
+                    if is_datetime is True:
+                        pv = self._convert_datetime(pv)
+
+                    if isinstance(pv, six.string_types) and not is_datetime:
+                        in_options.append('"%s"' % pv)
+                    else:
+                        in_options.append('%s' % pv)
+
+                query_frag = "(%s)" % " OR ".join(in_options)
+            elif filter_type == 'range':
+                start = self.backend._from_python(prepared_value[0])
+                end = self.backend._from_python(prepared_value[1])
+
+                if hasattr(prepared_value[0], 'strftime'):
+                    start = self._convert_datetime(start)
+
+                if hasattr(prepared_value[1], 'strftime'):
+                    end = self._convert_datetime(end)
+
+                query_frag = u"[%s to %s]" % (start, end)
+            elif filter_type == 'exact':
+                if value.input_type_name == 'exact':
+                    query_frag = prepared_value
+                else:
+                    prepared_value = Exact(prepared_value).prepare(self)
+                    query_frag = filter_types[filter_type] % prepared_value
+            else:
+                if is_datetime is True:
+                    prepared_value = self._convert_datetime(prepared_value)
+
+                query_frag = filter_types[filter_type] % prepared_value
+
+        if len(query_frag) and not isinstance(value, Raw):
+            if not query_frag.startswith('(') and not query_frag.endswith(')'):
+                query_frag = "(%s)" % query_frag
+
+        return u"%s%s" % (index_fieldname, query_frag)
+
+class WhooshEngine(BaseEngine):
+    backend = WhooshSearchBackend
+    query = WhooshSearchQuery

src/djangoblog/wsgi.py

@@ -0,0 +1,13 @@
+import os
+
+from django.core.wsgi import get_wsgi_application
+"""
+#设置环境变量：指定Django项目的配置文件路径
+#告诉WSGI服务器使用哪个settings.py文件（此处为djangoblog项目的settings）
+"""
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "djangoblog.settings")
+"""
+# 生成WSGI应用实例：Web服务器通过该实例与Django项目交互
+# 该实例封装了Django的请求处理流程，供WSGI服务器调用
+"""
+application = get_wsgi_application()