CC98 Tools - Topic Preview

CC98 tools for previewing topic.

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey,才能安装此脚本。

您需要先安装用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name         CC98 Tools - Topic Preview
// @version      1.0.1
// @description  CC98 tools for previewing topic.
// @icon         https://www.cc98.org/static/98icon.ico

// @author       ml98
// @namespace    https://www.cc98.org/user/name/ml98
// @license      MIT

// @match        https://www.cc98.org/*
// @match        https://www-cc98-org-s.webvpn.zju.edu.cn:8001/*
// @grant        none
// ==/UserScript==

/* eslint-env jquery */

(async function () {
    if (typeof $ === 'undefined') {
        return;
    }

    const boardsInfo = JSON.parse(localStorage.boardsInfo?.slice(4) || "[]");
    const boards = Object.fromEntries(
        boardsInfo
        .map((i) => i.boards)
        .flat()
        .map((i) => [i.id, i.name])
    );

    init();

    function init() {
        const fragment = html(`
<div id="topic-preview-container" class="hide">
  <style></style>
  <header id="topic-preview-header">
    <a id="topic-preview-title" target="_blank"></a>
    <a id="topic-preview-board" target="_blank"></a>
  </header>
  <div id="topic-preview-body"></div>
  <footer id="topic-preview-footer">
    <button id="topic-preview-more" class="ant-btn ant-btn-primary">more</button>
  </footer>
</div>
`);
        document.documentElement.append(fragment);
        const container = document.querySelector("#topic-preview-container");
        const button = container.querySelector("#topic-preview-more");
        $(button).on("click", more);

        let timer1_id = 0;
        let timer2_id = 0;
        let timer3_id = 0;
        $(document.body)
            .on("mouseenter", "a", function (e) {
            if (this.href?.match(/topic\/\d+/)) {
                clearTimeout(timer2_id);
                clearTimeout(timer3_id);
                timer1_id = setTimeout(() => {
                    container.classList.remove("hide");
                    const topicId = this.href.match(/topic\/(\d+)/)[1];
                    preview(topicId);
                }, 1000);
            }
        })
            .on("mouseleave", "a", function (e) {
            if (this.href?.match(/topic\/\d+/)) {
                clearTimeout(timer1_id);
                timer2_id = setTimeout(() => {
                    container.classList.add("hide");
                }, 1500);
            }
        });

        $(container)
            .on("mouseenter", function (e) {
            clearTimeout(timer2_id);
            clearTimeout(timer3_id);
        })
            .on("mouseleave", function (e) {
            timer3_id = setTimeout(() => {
                container.classList.add("hide");
            }, 1500);
        });

        if(true) {
            container.querySelector("style").innerHTML = `
.focus-topic-title {
  width: fit-content;
  min-width: 1em;
}

/* container */
#topic-preview-container {
  /*
  left: 20%;
  right: 20%;
  top: 5%;
  bottom: 15%;
  border-radius: 12px;
  transform: translateY(0%);
  transition: 0.25s ease;
  */
  left: 55%;
  right: 0%;
  top: 0%;
  bottom: 0%;
  border-radius: 12px 0 0 12px;
  transform: translateX(0%);
  transition: 0.25s ease;

  position: fixed;
  z-index: 10000000;
  background: white;
  padding: 20px;
  box-shadow: 0px 0px 12px 2px #0008;
  display: flex;
  flex-direction: column;
}

#topic-preview-container.hide {
  /*
  transform: translateY(-110%);
  */
  transform: translateX(110%);
}

/* header */
#topic-preview-header {
  display: flex;
  margin-bottom: 10px;
  font-size: 1.25rem;
}
#topic-preview-title {
  flex: 1;
}
#topic-preview-board {
  margin-left: 10px;
  display: flex;
  align-items: center;
}

/* body */
#topic-preview-body {
  margin-bottom: 10px;
  flex: 1;
  overflow: auto;
  overscroll-behavior: none;
}

.topic-preview-post {
  margin: 10px;
  border-bottom: 3px dashed #0004;
}
.topic-preview-postInfo {
  display: flex;
  font-size: large;
  margin-bottom: 10px;
}
.topic-preview-userName {
  flex: 1;
  margin-left: 0.5em;
}

.topic-preview-content {
  display: block;
  line-height: normal;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}
.topic-preview-content * {
  max-width: 100%;
}
.topic-preview-content img {
  margin-top: 10px;
  margin-bottom: 10px;
  border-radius: 4px;
  box-shadow: 0 0 5px 0px #0008;
}
.topic-preview-content img.topic-preview-emoji {
  display: inline-block;
  box-shadow: none;
}
.topic-preview-content blockquote {
  padding-left: 1em;
  max-height: 20em;
  overflow: auto;
}
.topic-preview-content>blockquote>blockquote>blockquote>blockquote {
  visibility: hidden;
  height: 2rem;
}
.topic-preview-content>blockquote>blockquote>blockquote>blockquote:before {
  visibility: visible;
  content: '...';
}
.topic-preview-content iframe {
  border: none;
}
.topic-preview-awards {
  font-size: 0.5rem;
  text-align: center;
}

.topic-preview-like {
  display: flex;
  justify-content: flex-end;
}
.topic-preview-like > div {
  margin: 10px;
}

/* footer */
#topic-preview-footer {
  margin: auto;
}

/* webkit-scrollbar */
#topic-preview-body::-webkit-scrollbar
{
  width: auto;
  height: auto;
}
#topic-preview-body::-webkit-scrollbar-track
{
  background-color: #0001;
}
#topic-preview-body::-webkit-scrollbar-thumb
{
  background-color: #8888;
  border-radius: 100vw;
  border: 5px solid #0000;
  background-clip: content-box;
}
#topic-preview-body::-webkit-scrollbar-thumb:hover
{
  background-color: #888;
}
#topic-preview-body::-webkit-scrollbar-thumb:active
{
  background-color: #666;
}
`;
        }
    }

    async function preview(topicId) {
        const container = document.querySelector("#topic-preview-container");
        if (topicId == container.topicId) {
            return;
        }
        container.topicId = topicId;
        container.page = 0;
        const postContainer = container.querySelector("#topic-preview-body");
        const title = container.querySelector("#topic-preview-title");
        const board = container.querySelector("#topic-preview-board");

        postContainer.innerHTML = "";
        title.textContent = "";
        board.textContent = "";

        const topic = await getTopic(topicId);
        const posts = await getTopic(topicId, 0);

        title.href = "/topic/" + topicId;
        title.textContent = topic.title;
        board.href = "/board/" + topic.boardId;
        board.textContent = boards[topic.boardId];

        // console.log(posts.length);
        if (posts.length == 10) {
            container.page++;
        }
        for (const post of posts) {
            postContainer.append(parsePost(post));
        }
    }

    async function more() {
        const container = document.querySelector("#topic-preview-container");
        const postContainer = container.querySelector("#topic-preview-body");
        const posts = await getTopic(container.topicId, container.page);
        // console.log(container.page, posts.length);
        if (posts.length == 10) {
            container.page++;
        }
        while (postContainer.children.length % 10) {
            postContainer.removeChild(postContainer.lastChild);
        }
        for (const post of posts) {
            postContainer.append(parsePost(post));
        }
    }

    function parsePost(post) {
        const userName =
              (post.isAnonymous
               ? "匿名" + post.userName.toUpperCase()
               : post.userName) + (post.isLZ ? " (LZ)" : "");
        const page = Math.floor((post.floor - 1) / 10) + 1, floor = post.floor % 10;
        const content = parseUbb(post.content) + parseAwards(post.awards);
        const firstTime = parseTime(post.time);
        const lastTime = parseTime(post.lastUpdateTime);
        const time = firstTime + (lastTime ? " | " + lastTime : "");
        return html(`
<div class="topic-preview-post">
  <div class="topic-preview-postInfo">
    <div class="topic-preview-floor">
      <a href="/topic/${post.topicId}/${page}#${floor}" target="_blank">#${post.floor}</a>
    </div>
    <div class="topic-preview-userName">
      ${post.isAnonymous
                    ? `${userName}`
                    : `<a href="/user/id/${post.userId}" target="_blank">${userName}</a>`
                    }
    </div>
    <div class="topic-preview-time">${time}</div>
  </div>
  <article class="topic-preview-content">${content}</article>
  <div class="topic-preview-like">
    <div><i title="赞" class="fa fa-thumbs-o-up"></i> ${post.likeCount}</div>
    <div><i title="踩" class="fa fa-thumbs-o-down"></i> ${post.dislikeCount}</div>
  </div>
</div>
`);
    }

    function parseTime(time) {
        if (!time) {
            return "";
        }
        const t = new Date(time), now = new Date();
        return t.toLocaleDateString() == now.toLocaleDateString() ?
            t.toLocaleTimeString() : t.toLocaleString();
    }

    function parseUbb(text) {
        if (!text) {
            return "";
        }
        const emoji_base = '<img class="topic-preview-emoji" src="/static/images';
        return text
            .replace(/\[ac(\d+)\]/gi, emoji_base + '/ac-dark/$1.png">')
            .replace(/\[a:(\d+)\]/gi, emoji_base + '/mahjong/animal2017/$1.png">')
            .replace(/\[c:(018|049|096)\]/gi, emoji_base + '/mahjong/carton2017/$1.gif">')
            .replace(/\[c:(\d+)\]/gi, emoji_base + '/mahjong/carton2017/$1.png">')
            .replace(/\[f:(004|009|056|061|062|087|115|120|137|168|169|175|206)\]/gi,
                     emoji_base + '/mahjong/face2017/$1.gif">')
            .replace(/\[f:(\d+)\]/gi, emoji_base + '/mahjong/face2017/$1.png">')
            .replace(/\[(ms|tb)(\d+)\]/gi, emoji_base + '/$1/$1$2.png">')
            .replace(/\[cc98(1[5-9]|2\d|3[067])\]/gi, emoji_base + '/cc98/cc98$1.png">')
            .replace(/\[(em|cc98)(\d+)\]/gi, emoji_base + '/$1/$1$2.gif">')
            .replace(/\[img(=\d)?\](.+?)\[\/img\]/gi, '<img src="$2">')
            .replace(/\[url\](.+?)\[\/url\]/gi, '<a href="$1" target="_blank">$1</a>')
            .replace(/\[url=([^\]]+?)\]\[\/url\]/gi, '<a href="$1" target="_blank">$1</a>')
            .replace(/\[url=([^\]]+?)\](.+?)\[\/url\]/gi, '<a href="$1" target="_blank">$2</a>')
            .replace(/\[video\](.+?)\[\/video\]/gi, '<video controls src="$1"></video>')
            .replace(/\[audio\](.+?)\[\/audio\]/gi, '<audio controls src="$1"></audio>')
            .replace(/\[upload(=[^\]]+?)?\](.+?)\[\/upload\]/gi, '<a href="$2" target="_blank">$2</a>')
            .replace(/\[bili(=\d+)?\](https:\/\/www.bilibili.com\/video\/)?(BV.+?)\[\/bili\]/gi,
                     '<iframe width="640" height="480" allowfullscreen ' +
                     'src="https://player.bilibili.com/player.html?bvid=$3&page$1"></iframe>')
            .replace(/\[size=(\d)\]/gi, '<span style="font-size:calc($1rem/3);">')
            .replace(/\[color=([^\]]+?)\]/gi, '<span style="color:$1;">')
            .replace(/\[font=([^\]]+?)\]/gi, '<span style=\'font-family:$1;\'>')
            .replace(/\[align=(left|center|right)\]/gi, '<span style="text-align:$1;display:block;">')
            .replace(/\[(left|center|right)\]/gi, '<span style="text-align:$1;display:block;">')
            .replace(/\[\/(size|color|font|align|left|center|right)\]/gi, '</span>')
            .replace(/\[(\/?)(u|b|i|del|code|table|thead|tbody|th|tr|td)\]/gi, '<$1$2>')
            .replace(/\[line\]/gi, '<br>')
            .replace(/\[(\/?)noubb\]/gi, '<$1code>')
            .replace(/\[(\/?)quotex?\]/gi, '<$1blockquote>');
    }

    function parseAwards(awards) {
        if (!awards?.length) {
            return "";
        }
        return `<br>
<table class="topic-preview-awards">
  <thead>
    <tr>
      <th>用户</th>
      <th>时间</th>
      <th>操作</th>
      <th>理由</th>
    </tr>
  </thead>
  <tbody>${awards.map(award=>`
    <tr>
      <td>${award.operatorName}</td>
      <td>${award.time.replace('T', ' ').split('.')[0]}</td>
      <td>${award.content}</td>
      <td>${award.reason}</td>
    </tr>`).join('')}
  </tbody>
</table>`;
    }

    async function cc98fetch(url, data) {
        await sleep(500);
        try {
            const resp = await fetch("https://api-v2.cc98.org" + url, {
                ...data,
                headers: {
                    authorization: localStorage.accessToken?.slice(4) || "",
                },
            });
            const json = await resp.json();
            return json;
        }
        catch {
            return {};
        }
    }

    async function getTopic(topicId, page) {
        if (page === undefined) {
            return await cc98fetch(`/topic/${topicId}`);
        }
        return await cc98fetch(`/topic/${topicId}/post?from=${page * 10}&size=10`);
    }

    async function sleep(ms) {
        return new Promise((r) => setTimeout(r, ms));
    }

    function html(s) {
        const t = document.createElement("template");
        t.innerHTML = s.trim();
        return sanitize(t.content);
    }

    function sanitize(fragment) {
        fragment.querySelectorAll("script").forEach((node) => node.remove());
        fragment.querySelectorAll("*").forEach(function (node) {
            node.getAttributeNames()
                .filter((attr) => attr.startsWith("on"))
                .forEach((attr) => node.removeAttribute(attr));
        });
        return fragment;
    }
})();