feat: markdown support

ling_chair_http/finally.js

@@ -52,3 +52,36 @@ Stickyfill.add($("*").filter((a, b) => $(b).css('position') === 'sticky'))
 ChatMsgAdapter.initMsgElementEvents()
 
 ChatMsgAdapter.initInputResizer()
+
+const showLinkDialog = (link) => mdui.alert(decodeURI(link) + "<br/>如果你确认此链接是安全的, 那么请<a class=\"mdui-text-color-theme-accent\" href=\"" + link + "\">点我</a>", '链接', () => { }, { confirmText: "关闭" })
+
+const showImageDialog = (link, id, alt) => mdui.alert(`此图片链接来源未知: ${decodeURI(link)}<br/>如果你希望加载, 请<a class="mdui-text-color-theme-accent" mdui-dialog-close onclick="$('#${id}').html('<img src=\\'${link}\\' alt=\\'${decodeURI(alt)}\\'></img>')">点我</a>`, '外部图片', () => { }, { confirmText: "关闭" })
+
+const renderer = {
+    heading(text, level) {
+        return text
+    },
+    paragraph(text) {
+        return text
+    },
+    blockquote(text) {
+        return text
+    },
+    link(href, title, text) {
+        return `<a class="mdui-text-color-theme-accent" onclick="showLinkDialog('${encodeURI(href)}')">${text}</a>`
+    },
+    image(href, title, text) {
+        let h = Hash.sha256(href)
+        if (new URL(href).hostname === new URL(location.href))
+            return `<img src="${encodeURI(href)}" alt="${text}"></img>`
+        else
+            return `<div id="${h}"><a class="mdui-text-color-theme-accent" onclick="showImageDialog('${encodeURI(href)}', '${h}', '${encodeURI(text)}')">[外部图片] ${text}</a></div>`
+    }
+}
+
+marked.use({
+    gfm: true,
+    renderer: renderer,
+})
+
+

ling_chair_http/handler.js

@@ -392,14 +392,14 @@ class ChatMsgAdapter {
      * @param {String} msg
      * @param {String} type 
      * @param {String} 是否加到头部
-     * @param {String or int} 消息id
+     * @param {String || int} 消息id
      * @returns {jQuery} 消息元素
      */
     static async addMsg(name, m, t, re, msgid) {
 
         let nick = await NickCache.getNick(name) // re.data == null ? name : re.data.nick
 
-        let msg = escapeHTML(m)
+        let msg = marked.parse(m)
 
         let temp
         if (name === localStorage.userName)

ling_chair_http/index.html

@@ -25,6 +25,7 @@
   <script src="https://cdn.jsdelivr.net/gh/wilddeer/stickyfill@2.1.0/dist/stickyfill.min.js"></script>
   <script src="https://unpkg.com/jquery@3.7.1/dist/jquery.min.js"></script>
   <script src="https://cdn.jsdelivr.net/npm/clipboard@2.0.11/dist/clipboard.min.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
   <link rel="icon" href="res/icon.ico" />
   <title>铃之椅</title>
 </head>