豆瓣图片下载

Greasy Fork is available in English.
豆瓣图片下载

全部图片页添加下载按钮；图片页添加下载按钮；图片页显示原图
当前为 2022-08-11 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         豆瓣图片下载
// @namespace    http://tampermonkey.net/
// @version      1.03
// @description  全部图片页添加下载按钮；图片页添加下载按钮；图片页显示原图
// @author       backrock12
// @match        *.douban.com/*
// @icon         https://www.google.com/s2/favicons?domain=douban.com
// @require      http://libs.baidu.com/jquery/2.0.0/jquery.min.js
// @grant       GM_download
// @grant       GM_xmlhttpRequest
// @license MIT
// ==/UserScript==

(function () {
  "use strict";

  //自动下载
  const isauto = true;

  const prefixs = ["r", "raw", "l", "large"];

  function replacefun(prefix) {
    return `$1${prefix}$3`;
  }
  const pic_regex =
    /^(https:\/\/img\d\.doubanio\.com\/p?view\/(event_poster|subject|note|status|group|group_topic|photo|richtext)\/).+(\/public\/.+\..+)$/;

  async function gethtml(url) {
    return new Promise((resolve, reject) => {
      GM_xmlhttpRequest({
        url: url,
        method: "GET",
        onload: function (response) {
          resolve(response.responseText);
        },
      });
    });
  }

  function subject_button() {
    if (/movie\.douban\.com\/subject/.test(location.href)) {
      const h1_id = "div.mod div > h2";
      const a_id = "div.mod div  h2   span a";
      const doc_id = ".poster-col3  li  div  a  img";

      add_down(h1_id, a_id, doc_id);

      const h1_id2 = "div.mod:nth-child(2) > div > h2";
      const a_id2 = " div.mod:nth-child(2) > div h2 span a ";
      const doc_id2 = ".poster-col3  li  div  a  img";

      add_down(h1_id2, a_id2, doc_id2);

      const h1_id3 = "div.mod:nth-child(3) > div > h2 ";
      const a_id3 = " div.mod:nth-child(3) > div h2 span a ";
      const doc_id3 = ".poster-col3  li  div  a  img";
      add_down(h1_id3, a_id3, doc_id3);
    }
  }

  function add_down(h1_id, a_id, doc_id) {
    const h1 = document.querySelector(h1_id);
    const a = document.querySelector(a_id);
    const url = a.href;

    let title = "";
    const titleobj = document.querySelector("#content > h1");
    if (titleobj) title = titleobj.innerText.replace("的全部图片", "");

    const ce = document.createElement("button");
    ce.id = "CDownBtn";
    ce.textContent = "全部下载";
    ce.className = "btn btn-md btn-default";
    ce.onclick = function () {
      down_all(url);
    };
    h1.append(ce);

    async function down_all(aurl) {
      let index = 0;
      let url_list = [];
      let isloop = true;
      while (isloop) {
        const url = `${aurl}&start=${index * 30}&sortby=like&size=a&subtype=a`;
        console.log(url);
        const htmltext = await gethtml(url);

        let doc = $("<html></html>");
        doc.html(htmltext);
        const tlist = doc.find(doc_id);
        if (tlist.length == 0) {
          isloop = false;
        }

        for (let i = 0; i < tlist.length; i++) {
          const url = tlist[i].src.replace(pic_regex, replacefun(prefixs[0]));
          url_list.push(url);
        }

        index++;
      }

      console.log(url_list);
      let oknum = 0;
      let errornum = 0;

      for (let i = 0; i < url_list.length; i++) {
        const url = url_list[i];
        const name = title + "_" + url.substring(url.lastIndexOf("/") + 1); //.replace(".", "_");
        GM_download({
          url: url,
          name: name,
          onerror: (error) => {
            errornum++;
            console.log(url);
            console.log(error);
          },
          onload: () => {
            oknum++;
          },
        });
      }

      const time = url_list.length > 20 ? 2000 : 1000;

      const IntervalId = setInterval(() => {
        if (url_list.length == oknum + errornum) {
          const msg = `下载完成，共${url_list.length}个文件，成功${oknum}，失败${errornum}`;
          alert(msg);
          clearInterval(IntervalId);
        }
      }, time);
    }
  }

  function pic_button() {
    if (/movie\.douban\.com\/photos\/photo/.test(location.href)) {
      const pic = document.querySelector(".mainphoto img");
      const h1 = document.querySelector("#content > h1");
      let url = pic.src;
      const name = url.substring(url.lastIndexOf("/") + 1).replace(".", "_");

      console.log(url);

      const ce = document.createElement("button");
      ce.id = "CDownBtn";
      ce.textContent = "全部下载";
      ce.className = "btn btn-md btn-default";
      ce.onclick = function () {
        GM_download(url, name);
        ce.style.backgroundColor = "#87CEFA";
      };
      h1.append(ce);
      if (isauto) ce.click();
    }
  }

  function bigpic() {
    if (/all_photos/.test(location.href)) return;

    const imgs = document.querySelectorAll("img");
    let tindex = 0;
    imgs.forEach((img) => {
      if (img.src && pic_regex.test(img.src)) {
        let index = 0;
        img.src = img.src.replace(pic_regex, replacefun(prefixs[tindex]));
        img.onerror = (e) => {
          if (tindex != index) {
            index = 0;
          } else {
            index += 1;
            tindex = index;
          }
          if (index >= prefixs.length) return;
          img.src = img.src.replace(pic_regex, replacefun(prefixs[index]));
        };
      }
    });
  }

  function start() {
      if (/douban\.com\/game/.test(location.href))return;
    bigpic();
    pic_button();
    subject_button();
  }

  setTimeout(start, 300);
  // Your code here...
})();