plurk_lib

An unofficial library for Plurk

此腳本不應該直接安裝,它是一個供其他腳本使用的函式庫。欲使用本函式庫,請在腳本 metadata 寫上: // @require https://update.gf.qytechs.cn/scripts/432792/972862/plurk_lib.js

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         plurk_lib
// @description  An unofficial library for Plurk
// @version      0.1.1
// @license      MIT
// @namespace    https://github.com/stdai1016
// @include      https://www.plurk.com/*
// @exclude      https://www.plurk.com/_*
// ==/UserScript==

/* jshint esversion: 6 */

const plurklib = (function () { // eslint-disable-line
  'use strict';
  /* class */

  class PlurkRecord {
    constructor (target, type = null) {
      this.target = target;
      this.type = type;
      this.plurks = [];
    }
  }

  class PlurkObserver {
    /**
     *  @param {Function} callback
     */
    constructor (callback) {
      this._observe = false;
      this._mo_tl = new MutationObserver(function (mrs) {
        const records = [];
        mrs.forEach(mr => {
          const pr = new PlurkRecord(mr.target, 'plurk');
          mr.addedNodes.forEach(node => {
            const plurk = Plurk.analysisElement(node);
            if (plurk) pr.plurks.push(plurk);
          });
          if (pr.plurks.length) records.push(pr);
        });
        callback(records);
      });
      this._mo_resp = new MutationObserver(function (mrs) {
        const records = [];
        mrs.forEach(mr => {
          const pr = new PlurkRecord(mr.target, 'plurk');
          mr.addedNodes.forEach(node => {
            const plurk = Plurk.analysisElement(node);
            if (plurk) pr.plurks.push(plurk);
          });
          if (pr.plurks.length) records.push(pr);
        });
        callback(records);
      });
    }

    observe (options = { plurk: false }) {
      if (options?.plurk) {
        this._observe = true;
        getElementAsync('#timeline_cnt .block_cnt', document) // timeline
          .then(tl => this._mo_tl.observe(tl, { childList: true }), e => {});
        getElementAsync('#cbox_response .list', document) // pop window
          .then(list => this._mo_resp.observe(list, { childList: true }));
        getElementAsync('#form_holder .list', document) // resp in timeline
          .then(list => this._mo_resp.observe(list, { childList: true }));
        // resp in article
        getElementAsync('#plurk_responses .list', document).then(
          list => this._mo_resp.observe(list, { childList: true }),
          e => {}
        );
      }
      if (!this._observe) throw Error();
    }

    disconnect () {
      this._mo_tl.disconnect();
      this._mo_resp.disconnect();
    }
  }

  class Plurk {
    /**
     * @param {object} pdata
     */
    constructor (pdata, target) {
      Plurk.ATTRIBUTES.forEach(a => { this[a] = pdata[a]; });
      this.target = target;
    }

    get isMute () { return this.is_unread === 2; }

    get isResponse () { return this.id !== this.plurk_id; }

    get isReplurk () {
      return !this.isResponse && this.user_id !== this.owner_id;
    }

    /**
     *  @param {HTMLElement} node
     *  @returns {Plurk}
     */
    static analysisElement (node) {
      if (!node.classList.contains('plurk')) return null;
      return new Plurk(analysisElement(node), node);
    }
  }

  /* eslint-disable no-multi-spaces */
  /** attributes for plurk | response */
  Plurk.ATTRIBUTES = [
    'owner_id',         // posted by
    'plurk_id',         // the plurk | the plurk that the response belongs to
    'user_id',          // which timeline does this Plurk belong to | unused
    'replurker_id',     // replurked by | unused
    'id',               // plurk id | response id
    'qualifier',        // qualifier
    'content',          // HTMLElement if exist
    // 'content_raw',
    // 'lang',
    'posted',           // the date this plurk was posted
    'last_edited',      // the last date this plurk was edited

    'plurk_type',       // 0: public, 1: private, 4: anonymous | unused
    // 'limited_to',
    // 'excluded',
    // 'publish_to_followers',
    // 'no_comments',
    'porn',             // has 'porn' tag | unused
    'anonymous',        // is anonymous

    'is_unread',        // 0: read, 1: unread, 2: muted  | unused
    // 'has_gift',      // current user sent a gift?
    'coins',            // number of users sent gift
    'favorite',         // favorited by current user
    'favorite_count',   // number of users favorite it
    // 'favorers',      // favorers
    'replurked',        // replurked by current user
    'replurkers_count', // number of users replurked it
    // 'replurkers',    // replurkers
    'replurkable',      // replurkable
    // 'responded',     // responded by current user
    'response_count'    // number of responses | unused
    // 'responses_seen',
    // 'bookmark',
    // 'mentioned'      // current user is mentioned
  ];
  /* eslist-enable */

  function getElementAsync (selectors, target, timeout = 100) {
    return new Promise((resolve, reject) => {
      const i = setTimeout(function () {
        stop();
        const el = target.querySelector(selectors);
        if (el) resolve(el);
        else reject(Error(`get "${selectors}" timeout`));
      }, timeout);
      const mo = new MutationObserver(r => r.forEach(mu => {
        const el = mu.target.querySelector(selectors);
        if (el) { stop(); resolve(el); }
      }));
      mo.observe(target, { childList: true, subtree: true });
      function stop () { clearTimeout(i); mo.disconnect(); }
    });
  }

  /**
   *  @param {HTMLElement} node
   *  @returns {object}
   */
  function analysisElement (node) {
    const user = node.querySelector('.td_qual a.name') ||
                 node.querySelector('.user a.name');
    const posted = node.querySelector('.posted');
    const isResponse = node.classList.contains('response');
    const isReplurk = !isResponse && user.dataset.uid !== node.dataset.uid;
    return {
      owner_id: parseInt(node.dataset.uid || user.dataset.uid),
      plurk_id: parseInt(node.dataset.pid),
      user_id: getPageUserData()?.id || parseInt(user.dataset.uid),
      posted: posted ? new Date(posted.dataset.posted) : null,
      replurker_id: isReplurk ? parseInt(user.dataset.uid) : null,
      id: parseInt(node.id.substr(1) || node.dataset.rid || node.dataset.pid),
      qualifier: (function () {
        const qualifier = node.querySelector('.text_holder .qualifier') ||
                          node.querySelector('.qualifier');
        for (const c of qualifier?.classList || []) {
          if (!c.startsWith('q_') || c === 'q_replurks') continue;
          return c.substr(2);
        }
        return ':';
      })(),
      content: node.querySelector('.text_holder .text_holder') ||
               node.querySelector('.text_holder'),
      // content_raw,
      // lang,
      response_count: parseInt(node.dataset.respcount) || 0,
      // responses_seen,
      // limited_to,
      // excluded,
      // no_comments,
      plurk_type: (function () {
        if (node.dataset.uid === '99999') return 4;
        if (node.querySelector('.private')) return 1;
        return 0;
      })(),
      is_unread: (function () {
        if (node.classList.contains('mute')) return 2;
        if (node.classList.contains('new')) return 1;
        return 0;
      })(),
      last_edited: posted?.dataset.edited
        ? new Date(posted.dataset.edited)
        : null,
      porn: node.classList.contains('porn'),
      // publish_to_followers,
      coins: parseInt(node.querySelector('a.gift')?.innerText) || 0,
      // has_gift,
      replurked: node.classList.contains('replurk'),
      // replurkers,
      replurkers_count:
        parseInt(node.querySelector('a.replurk')?.innerText) || 0,
      replurkable: node.querySelector('a.replurk') !== null,
      // favorers,
      favorite_count: parseInt(node.querySelector('a.like')?.innerText) || 0,
      anonymous: node.dataset.uid === '99999',
      // responded,
      favorite: node.classList.contains('favorite')
      // bookmark,
      // mentioned
    };
  }

  const _GLOBAL = (function () {
    function cp (o) {
      const n = {};
      for (const k in o) {
        if (o[k] instanceof Date) n[k] = new Date(o[k]);
        else if (typeof o[k] !== 'object') n[k] = o[k];
        else n[k] = cp(o[k]);
      }
      return n;
    }
    if (typeof unsafeWindow === 'undefined') {
      if (window.GLOBAL) return cp(window.GLOBAL);// eslint-disable-line
    // eslint-disable-next-line
    } else if (unsafeWindow.GLOBAL) return cp(unsafeWindow.GLOBAL);
    for (const scr of document.querySelectorAll('script')) {
      try {
        const text = scr.textContent
          .replace(/new Date\("([\w ,:]+)"\)/g, '"new Date(\\"$1\\")"');
        const i = text.indexOf('var GLOBAL = {');
        return (function dd (o) {
          for (const k in o) {
            if (typeof o[k] === 'object') dd(o[k]);
            else if (typeof o[k] === 'string' && o[k].startsWith('new Date')) {
              const m = o[k].match(/new Date\("([\w ,:]+)"\)/);
              o[k] = m ? new Date(m[1]) : null;
            }
          }
          return o;
        })(JSON.parse(text.substring(i + 13, text.indexOf('\n', i))));
      } catch {}
    }
  })();

  /**
   *  @returns {object}
   */
  function getUserData () { return _GLOBAL?.session_user; }

  /**
   *  @returns {object}
   */
  function getPageUserData () { return _GLOBAL?.page_user; }

  /* ## API */
  /**
   *  @param {string} path
   *  @param {object} options
   *  @returns {Promise<any>}
   */
  async function callApi (path, options = null) {
    options = options || {};
    let body = '';
    for (const k in options) {
      body += `&${encodeURIComponent(k)}=${encodeURIComponent(options[k])}`;
    }
    body = body.substr(1);
    const init = { method: 'POST', credentials: 'same-origin' };
    if (body.length) {
      init.body = body;
      init.headers = { 'content-type': 'application/x-www-form-urlencoded' };
    }
    path = path.startsWith('/') ? path : '/' + path;
    const resp = await fetch(`https://www.plurk.com${path}`, init);
    if (!resp.ok) {
      throw Error(`${resp.status} ${resp.statusText}: ${await resp.text()}`);
    }
    return resp.json();
  }

  /* ### Notifications */
  /**
   *  @param {number} limit
   *  @param {string|number|Date} offset
   *  @returns {Promise<object>}
   */
  async function getNotificationsMixed2 (limit = 20, offset = null) {
    const options = { limit: limit };
    if (offset) options.offset = (new Date(offset)).toISOString();
    return callApi('/Notifications/getMixed2', options);
  }

  /* ### Responses */
  async function getResponses (plurkId, from = 0) {
    return callApi('/Responses/get',
      { plurk_id: plurkId, from_response_id: from });
  }
  /* ### Users */
  async function fetchUserAliases () {
    return callApi('/Users/fetchUserAliases');
  }
  /**
   *  @param {number|string} userIdOrNickName
   *  @returns {Promise<object>}
   */
  async function fetchUserInfo (userIdOrNickName) {
    let id = null;
    if (/^\d+$/.test(`${userIdOrNickName}`)) id = `${userIdOrNickName}`;
    else {
      const resp = await fetch(`https://www.plurk.com/${userIdOrNickName}`);
      const html = resp.ok ? (await resp.text()) : '';
      const doc = (new DOMParser()).parseFromString(html, 'text/html');
      for (const scr of doc.head.querySelectorAll('script:not([src])')) {
        const i = scr.textContent.indexOf('"page_user"');
        if (i < 0) continue;
        const text = scr.textContent.substr(i, 128);
        id = text.match(/"id" *: *(\d+) *,/)?.[1];
        if (id) break;
      }
    }
    return callApi('/Users/fetchUserInfo', { user_id: id });
  }

  /**
   *  @param {number} userId
   *  @returns {Promise<string[]>}
   */
  async function getCustomCss (userId = null) {
    userId = userId || getPageUserData().id;
    const url = `https://www.plurk.com/Users/getCustomCss?user_id=${userId}`;
    const rules = await (await fetch(url)).text();
    return rules.split(/\r?\n/);
  }

  return {
    Plurk: Plurk,
    PlurkRecord: PlurkRecord,
    PlurkObserver: PlurkObserver,
    getUserData: getUserData,
    getPageUserData: getPageUserData,
    callApi: callApi,
    getNotificationsMixed2: getNotificationsMixed2,
    fetchUserAliases: fetchUserAliases,
    fetchUserInfo: fetchUserInfo,
    getResponses: getResponses,
    getCustomCss: getCustomCss
  };
})();