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qB-WebUI 标记tracker异常

在 qBittorrent WebUI 中添加按钮，用于标记tracker状态出错的种子

// ==UserScript==
// @name            qB-WebUI 标记tracker异常
// @name:en         qB-WebUI tag trackerERR
// @namespace       localhost
// @version         0.1.0
// @author          ColderCoder
// @description     在 qBittorrent WebUI 中添加按钮，用于标记tracker状态出错的种子
// @description:en  add a button in qBittorrent WebUI to tag torrents with tracker error
// @license         MIT
// @run-at          document-end
// @match           http://127.0.0.1:8080/
// @require         https://cdn.bootcdn.net/ajax/libs/jquery/3.6.3/jquery.min.js
// ==/UserScript==

//require qB API v2.3.0 +

const host = window.location.href;
const baseURL = host + 'api/v2/torrents/';

async function getFetch(route) {
    try {
        const response = await fetch(baseURL + route);
        if (!response.ok) {
            throw new Error('Error fetching info!');
        }
        const data = await response.json();
        return data;
    } catch (error) {
        console.error(error);
        return null;
    }
}

async function processTorrents() {
    try {
        const torrentList = await getFetch('info');
        let count = 0;
        const keywords = ['registered', 'deleted']; // Keywords to search for

        for (const torrent of torrentList) {
            const trackers = await getFetch(`trackers?hash=${torrent.hash}`);
            for (let i = 0; i < trackers.length; i++) {
                const tracker = trackers[i];
                if (tracker.status === 4) { //tracker is not working
                    let torrentTags = ['trackerErr'];
                    for (const msg of keywords) {
                        if (tracker.msg.includes(msg)) {
                            count++;
                            console.log(`${count}. ${torrent.name}: ${tracker.msg}`);
                            //replace trackerErr with Unregistered if keyword found
                            torrentTags.splice(torrentTags.indexOf('trackerErr'), 1, 'Unregistered');
                        }
                    }
                    const tags = torrentTags.join(",");

                    //const response = await fetch(`${baseURL}addTags?hashes=${torrent.hash}&tags=${tags}`); //GET method. only for qb version under v4.5.0
                    const url = `${baseURL}addTags`;
                    const data = new URLSearchParams();
                    data.append('hashes', torrent.hash);
                    data.append('tags', tags);
                    fetch(url, {
                        method: 'POST',
                        headers: {
                            'Content-Type': 'application/x-www-form-urlencoded'
                        },
                        body: data
                    })
                        .then(response => {
                        console.log(response);
                    })
                        .catch(error => {
                        console.error('Error:', error);
                    });

                    break;
                }
            }
        }
        console.log('Done.');
    } catch (error) {
        console.error('Error:', error.message);
    }
}


jQuery("#desktopNavbar > ul").append(
    "<li><a class='js-modal'><b> 标记tracker异常 </b></a></li>",
);

jQuery(".js-modal").click(async function () {
    await processTorrents();
});