empty the blacklist

一键清空黑名单

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         empty the blacklist
// @namespace    https://github.com/harryhare/
// @version      0.0.2
// @description  一键清空黑名单
// @author       harryhare
// @license      GPL 3.0
// @icon         https://raw.githubusercontent.com/harryhare/userscript/master/index.png
// @match        https://www.douban.com/contacts/blacklist**
// @grant        none
// ==/UserScript==

let interval = 2000;

function makeRequest(url) {
    return new Promise(function (resolve, reject) {
        let xhr = new XMLHttpRequest();
        console.log(url);
        xhr.open("GET", url);
        xhr.onload = function () {
            if (this.status === 200) {
                resolve(xhr.response);
            } else {
                reject({
                    status: this.status,
                    statusText: xhr.statusText
                });
            }
        };
        xhr.onerror = function () {
            reject({
                status: this.status,
                statusText: xhr.statusText
            });
        };
        xhr.send();
    });
}

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


async function clean_page(e) {
    let url = "https://www.douban.com/contacts/blacklist";
    let response = await makeRequest(url);
    let parser = new window.DOMParser();
    let xmlDoc = parser.parseFromString(response, "text/html");
    let items = xmlDoc.querySelectorAll("a.j.a_confirm_link");
    console.log(items);
    let str = e.target.innerHTML;
    for (let i = 0; i < items.length; i++) {
        let item = items[i];
        let url0 = item.href + "&start=99999";
        await makeRequest(url0);
        e.target.innerHTML = `${str}, 该页已完成 ${i + 1}/${items.length}`;
        await sleep(interval);
    }
    return items.length;
}

async function clean_all(e) {
    let i = 0;
    while (true) {
        i++;
        e.target.innerHTML = `正在清空第 ${i} 页`;
        let n = await clean_page(e);
        if (n && n > 0) {
            console.log(n);
            await sleep(interval);
            continue;
        }
        break;
    }
    e.target.innerHTML = `黑名单已清空`;
    window.location="https://www.douban.com/contacts/blacklist";
}

(function () {
    'use strict';
    let div = document.querySelector("div.aside");
    let p = document.createElement('p');
    let a = document.createElement('a');
    a.onclick = clean_all;
    a.innerHTML = "清空黑名单";
    p.innerHTML = "> ";
    p.append(a);
    div.insertBefore(p, div.querySelector("h2"));
})();