Site updated: 2023-08-04 19:30:28

2023/07/05/trace-of-line-01/index.html

@@ -24,7 +24,7 @@
 <meta property="og:description" content="不存在的历史，勾起了石月仙的注意，随着找寻真相的深入，一个隐瞒了全世界的阴谋浮出水面。而对于人类，阴谋何来，何从，何去？「第三次科技革命后，人类进入信息时代，信息化开始影响人类的历史进程……」「为什么初中高中上过的还要再上一遍啊？我都快烦死了。」石月仙在心中自言自语道，眼睛无神地看着教授在全息屏上指指点点。">
 <meta property="og:locale" content="zh_CN">
 <meta property="article:published_time" content="2023-07-05T14:20:06.000Z">
-<meta property="article:modified_time" content="2023-08-04T11:27:23.912Z">
+<meta property="article:modified_time" content="2023-08-04T11:30:10.657Z">
 <meta property="article:author" content="cxzlw">
 <meta property="article:tag" content="飞石">
 <meta property="article:tag" content="小说">

2023/07/05/zhihu-aac-old/index.html

@@ -25,7 +25,7 @@
 <meta property="og:locale" content="zh_CN">
 <meta property="og:image" content="https://blog.cxzlw.top/img/image.png">
 <meta property="article:published_time" content="2023-07-04T17:49:31.000Z">
-<meta property="article:modified_time" content="2023-08-04T11:27:23.916Z">
+<meta property="article:modified_time" content="2023-08-04T11:30:10.657Z">
 <meta property="article:author" content="cxzlw">
 <meta property="article:tag" content="cxzlw">
 <meta property="article:tag" content="知乎">

2023/07/06/zerotier-planet-convert/index.html

@@ -24,7 +24,7 @@
 <meta property="og:description" content="由于国内特殊的网络原因，Zerotier 官方提供的 Planet 用户体验不佳。为此，不少人选择自建私有 Moon，甚至私有 Planet 服务器。然而，正如官方文档所说，使用私有 Planet 服务器会使你的节点无法找到其他的标准节点。本文试图提出一种方案在使用私有 Planet 服务器的同时与标准节点通信。">
 <meta property="og:locale" content="zh_CN">
 <meta property="article:published_time" content="2023-07-06T04:37:41.000Z">
-<meta property="article:modified_time" content="2023-08-04T11:27:23.912Z">
+<meta property="article:modified_time" content="2023-08-04T11:30:10.657Z">
 <meta property="article:author" content="cxzlw">
 <meta property="article:tag" content="Zerotier">
 <meta property="article:tag" content="自建Planet">

2023/07/10/trace-of-line-02/index.html

@@ -24,7 +24,7 @@
 <meta property="og:description" content="不存在的历史，勾起了石月仙的注意，随着找寻真相的深入，一个隐瞒了全世界的阴谋浮出水面。而对于人类，阴谋何来，何从，何去？「你家里关于知识大革命真实历史的藏书消失了，不仅如此，你对于知识大革命原有的记忆也消失了。这说明什么？」「说明有人想彻底地掩埋真相？」">
 <meta property="og:locale" content="zh_CN">
 <meta property="article:published_time" content="2023-07-10T15:01:06.000Z">
-<meta property="article:modified_time" content="2023-08-04T11:27:23.912Z">
+<meta property="article:modified_time" content="2023-08-04T11:30:10.657Z">
 <meta property="article:author" content="cxzlw">
 <meta property="article:tag" content="飞石">
 <meta property="article:tag" content="小说">

2023/08/04/permission-system-design-share/index.html

@@ -16,15 +16,15 @@
   <meta name="author" content="cxzlw">
   <meta name="keywords" content="创新者老王,创新者.老王,博客,技术博客,老王,创新者,Earthno1,FatalError">
 
-    <meta name="description" content="最近在参与某 OJ 的开发，过程中我们需要一个权限系统。作为一个热爱 MC 的开发者，我很喜欢 luckperms 的设计，于是这个小东西就出来了。在这里给大家分享我们的权限系统设计。 为什么不使用现成的库？ 如上文所说，我很喜欢 luckperms 的 Group，Node，Route 我们希望整个项目使用 PonyORM 我们希望这个库最好不要与某个 Web Framework 强关联，例如现">
+    <meta name="description" content="最近在参与某 OJ 的开发，过程中我们需要一个权限系统。作为一个热爱 MC 的开发者，我很喜欢 luckperms 的设计，于是这个小东西就出来了。在这里给大家分享我们的权限系统设计。">
 <meta property="og:type" content="article">
 <meta property="og:title" content="分享一个权限系统的设计">
 <meta property="og:url" content="https://blog.cxzlw.top/2023/08/04/permission-system-design-share/index.html">
 <meta property="og:site_name" content="创新者.老王的博客">
-<meta property="og:description" content="最近在参与某 OJ 的开发，过程中我们需要一个权限系统。作为一个热爱 MC 的开发者，我很喜欢 luckperms 的设计，于是这个小东西就出来了。在这里给大家分享我们的权限系统设计。 为什么不使用现成的库？ 如上文所说，我很喜欢 luckperms 的 Group，Node，Route 我们希望整个项目使用 PonyORM 我们希望这个库最好不要与某个 Web Framework 强关联，例如现">
+<meta property="og:description" content="最近在参与某 OJ 的开发，过程中我们需要一个权限系统。作为一个热爱 MC 的开发者，我很喜欢 luckperms 的设计，于是这个小东西就出来了。在这里给大家分享我们的权限系统设计。">
 <meta property="og:locale" content="zh_CN">
 <meta property="article:published_time" content="2023-08-04T07:32:59.000Z">
-<meta property="article:modified_time" content="2023-08-04T11:27:23.912Z">
+<meta property="article:modified_time" content="2023-08-04T11:30:10.657Z">
 <meta property="article:author" content="cxzlw">
 <meta property="article:tag" content="创新者老王">
 <meta property="article:tag" content="创新者.老王">
@@ -246,7 +246,7 @@
       <span class="post-meta mr-2">
         <i class="iconfont icon-chart"></i>
 
-          4.6k 字
+          3.8k 字
 
       </span>
 
@@ -257,7 +257,7 @@
 
 
 
-          39 分钟
+          32 分钟
 
       </span>
 
@@ -347,7 +347,7 @@ <h3 id="models-user-py"><a href="#models-user-py" class="headerlink" title="mode
 
 <h3 id="models-permission-group-py"><a href="#models-permission-group-py" class="headerlink" title="models&#x2F;permission_group.py"></a>models&#x2F;permission_group.py</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br></pre></td><td class="code"><pre><code class="hljs python"><span class="hljs-keyword">from</span> pony.orm <span class="hljs-keyword">import</span> Required, <span class="hljs-type">Set</span>, db_session<br><br><span class="hljs-keyword">from</span> .db <span class="hljs-keyword">import</span> db<br><br><br><span class="hljs-keyword">class</span> <span class="hljs-title class_">PermissionGroup</span>(db.Entity):<br>    name = Required(<span class="hljs-built_in">str</span>, unique=<span class="hljs-literal">True</span>)<br>    weight = Required(<span class="hljs-built_in">int</span>)<br>    nodes = <span class="hljs-type">Set</span>(<span class="hljs-string">&quot;PermissionNode&quot;</span>)<br>    members = <span class="hljs-type">Set</span>(<span class="hljs-string">&quot;User&quot;</span>)<br>    parents = <span class="hljs-type">Set</span>(<span class="hljs-string">&quot;PermissionGroup&quot;</span>, reverse=<span class="hljs-string">&quot;childs&quot;</span>)<br>    childs = <span class="hljs-type">Set</span>(<span class="hljs-string">&quot;PermissionGroup&quot;</span>, reverse=<span class="hljs-string">&quot;parents&quot;</span>)<br><br><span class="hljs-meta">    @classmethod</span><br><span class="hljs-meta">    @db_session</span><br>    <span class="hljs-keyword">def</span> <span class="hljs-title function_">instance</span>(<span class="hljs-params">cls, name, weight=<span class="hljs-literal">None</span></span>):<br>        <span class="hljs-string">&quot;&quot;&quot;</span><br><span class="hljs-string">        Return an PermissionGroup instance.</span><br><span class="hljs-string"></span><br><span class="hljs-string">        If a PermissionGroup with the name exists, it will directly return the group,</span><br><span class="hljs-string">            with new weight value. It is noticeable that, if weight is not given, it won&#x27;t be changed.</span><br><span class="hljs-string"></span><br><span class="hljs-string">        Or, it will create a new PermissionGroup with the given name and weight value.</span><br><span class="hljs-string">            Notice that if the weight is not given here, an ValueError will be thrown.</span><br><span class="hljs-string"></span><br><span class="hljs-string">        &quot;&quot;&quot;</span><br>        result = cls.get(name=name)<br>        <span class="hljs-keyword">if</span> result <span class="hljs-keyword">is</span> <span class="hljs-literal">None</span>:<br>            <span class="hljs-keyword">if</span> weight <span class="hljs-keyword">is</span> <span class="hljs-literal">None</span>:<br>                <span class="hljs-keyword">raise</span> ValueError<br>            <span class="hljs-keyword">return</span> cls(name=name, weight=weight)<br>        <span class="hljs-keyword">if</span> weight <span class="hljs-keyword">is</span> <span class="hljs-keyword">not</span> <span class="hljs-literal">None</span>:<br>            result.weight = weight<br>        <span class="hljs-keyword">return</span> result<br><br></code></pre></td></tr></table></figure>
 
-<h3 id="models-permission-node-py"><a href="#models-permission-node-py" class="headerlink" title="models&#x2F;permission_node.py"></a>models&#x2F;permission_node.py</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br></pre></td><td class="code"><pre><code class="hljs python"><span class="hljs-keyword">from</span> pony.orm <span class="hljs-keyword">import</span> Required, db_session<br><br><span class="hljs-keyword">from</span> .db <span class="hljs-keyword">import</span> db<br><span class="hljs-keyword">from</span> .permission_group <span class="hljs-keyword">import</span> PermissionGroup<br><br><br><span class="hljs-keyword">class</span> <span class="hljs-title class_">PermissionNode</span>(db.Entity):<br>    permission = Required(<span class="hljs-built_in">str</span>)<br>    value = Required(<span class="hljs-built_in">bool</span>)<br>    owner = Required(PermissionGroup)<br><br><span class="hljs-meta">    @classmethod</span><br><span class="hljs-meta">    @db_session</span><br>    <span class="hljs-keyword">def</span> <span class="hljs-title function_">instance</span>(<span class="hljs-params">cls, permission, value=<span class="hljs-literal">None</span>, owner=<span class="hljs-literal">None</span></span>):<br>        <span class="hljs-string">&quot;&quot;&quot;</span><br><span class="hljs-string">        Return an PermissionNode instance.</span><br><span class="hljs-string"></span><br><span class="hljs-string">        If a PermissionNode with the permission exists, it will directly return the</span><br><span class="hljs-string">            node, with new weight and owner value. It is noticeable that, if value</span><br><span class="hljs-string">            or owner are not given, it won&#x27;t be changed.</span><br><span class="hljs-string"></span><br><span class="hljs-string">        Or, it will create a new PermissionNode with the given permission, value, and</span><br><span class="hljs-string">            owner value. Notice that if the weight or owner are not given here, an</span><br><span class="hljs-string">            ValueError will be thrown.</span><br><span class="hljs-string"></span><br><span class="hljs-string">        &quot;&quot;&quot;</span><br>        result = cls.get(permission=permission)<br>        <span class="hljs-keyword">if</span> result <span class="hljs-keyword">is</span> <span class="hljs-literal">None</span>:<br>            <span class="hljs-keyword">if</span> value <span class="hljs-keyword">is</span> <span class="hljs-literal">None</span>:<br>                <span class="hljs-keyword">raise</span> ValueError<br>            <span class="hljs-keyword">if</span> owner <span class="hljs-keyword">is</span> <span class="hljs-literal">None</span>:<br>                <span class="hljs-keyword">raise</span> ValueError<br>            <span class="hljs-keyword">return</span> cls(permission=permission, value=value, owner=owner)<br>        <span class="hljs-keyword">if</span> value <span class="hljs-keyword">is</span> <span class="hljs-keyword">not</span> <span class="hljs-literal">None</span>:<br>            result.value = value<br>        <span class="hljs-keyword">if</span> owner <span class="hljs-keyword">is</span> <span class="hljs-keyword">not</span> <span class="hljs-literal">None</span>:<br>            result.owner = owner<br>        <span class="hljs-keyword">return</span> result<br><br></code></pre></td></tr></table></figure>
+<h3 id="models-permission-node-py"><a href="#models-permission-node-py" class="headerlink" title="models&#x2F;permission_node.py"></a>models&#x2F;permission_node.py</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><code class="hljs python"><span class="hljs-keyword">from</span> pony.orm <span class="hljs-keyword">import</span> Required, db_session<br><br><span class="hljs-keyword">from</span> .db <span class="hljs-keyword">import</span> db<br><span class="hljs-keyword">from</span> .permission_group <span class="hljs-keyword">import</span> PermissionGroup<br><br><br><span class="hljs-keyword">class</span> <span class="hljs-title class_">PermissionNode</span>(db.Entity):<br>    permission = Required(<span class="hljs-built_in">str</span>)<br>    value = Required(<span class="hljs-built_in">bool</span>)<br>    owner = Required(PermissionGroup)<br><br></code></pre></td></tr></table></figure>
 
 <h3 id="permission-init-py"><a href="#permission-init-py" class="headerlink" title="permission&#x2F;__init__.py"></a>permission&#x2F;__init__.py</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><code class="hljs python"><span class="hljs-keyword">from</span> queue <span class="hljs-keyword">import</span> Queue<br><br><span class="hljs-keyword">from</span> models <span class="hljs-keyword">import</span> User<br><span class="hljs-keyword">from</span> pony.orm <span class="hljs-keyword">import</span> select<br><br><br><span class="hljs-keyword">def</span> <span class="hljs-title function_">check_permission</span>(<span class="hljs-params">user: User, permission</span>):<br>    queue = Queue()<br>    weight = <span class="hljs-built_in">float</span>(<span class="hljs-string">&quot;-inf&quot;</span>)<br>    value = <span class="hljs-literal">False</span><br>    <span class="hljs-keyword">for</span> group <span class="hljs-keyword">in</span> user.permission_groups:<br>        queue.put(group)<br>    <span class="hljs-keyword">while</span> <span class="hljs-keyword">not</span> queue.empty():<br>        group = queue.get()<br>        <span class="hljs-keyword">for</span> g <span class="hljs-keyword">in</span> group.parents:<br>            queue.put(g)<br>        <span class="hljs-keyword">if</span> group.weight &lt; weight:<br>            <span class="hljs-keyword">continue</span><br>        values = select(node.value <span class="hljs-keyword">for</span> node <span class="hljs-keyword">in</span> group.nodes <span class="hljs-keyword">if</span> node.permission == permission)<br>        <span class="hljs-keyword">for</span> v <span class="hljs-keyword">in</span> values:<br>            value = v<br>            weight = group.weight<br>    <span class="hljs-keyword">return</span> value<br><br></code></pre></td></tr></table></figure>
 

2023/08/04/test-latex/index.html

@@ -24,7 +24,7 @@
 <meta property="og:description" content="$$E&#x3D;mc^2$$">
 <meta property="og:locale" content="zh_CN">
 <meta property="article:published_time" content="2023-08-04T06:35:08.000Z">
-<meta property="article:modified_time" content="2023-08-04T11:27:23.912Z">
+<meta property="article:modified_time" content="2023-08-04T11:30:10.657Z">
 <meta property="article:author" content="cxzlw">
 <meta property="article:tag" content="创新者老王">
 <meta property="article:tag" content="创新者.老王">

about/index.html

@@ -24,7 +24,7 @@
 <meta property="og:description" content="欢迎来到我的博客">
 <meta property="og:locale" content="zh_CN">
 <meta property="article:published_time" content="2023-07-02T17:01:41.000Z">
-<meta property="article:modified_time" content="2023-08-04T11:27:23.916Z">
+<meta property="article:modified_time" content="2023-08-04T11:30:10.657Z">
 <meta property="article:author" content="cxzlw">
 <meta property="article:tag" content="创新者老王">
 <meta property="article:tag" content="创新者.老王">