GMTI-Gazelle Music Tracker Importer

Just a simple script to import torrent metadata from other Gazelle sites when uploading. To use it you need to paste the permalink in the import field (on the upload page).
目前為 2019-03-21 提交的版本，檢視最新版本。
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// ==UserScript==
// @name    GMTI-Gazelle Music Tracker Importer
// @description    Just a simple script to import torrent metadata from other Gazelle sites when uploading. To use it you need to paste the permalink in the import field (on the upload page).
// @version  1.0.0
// @namespace      gmti
// @grant GM_xmlhttpRequest
// @include http*://*dicmusic.club/upload.php*
// @include http*://*orpheus.network/upload.php*

// ==/UserScript==

// Licensed under the Open Software License version 3.0
// Copy of the license can be found at: https://opensource.org/licenses/OSL-3.0

"use strict";

function decodeEntities(encodedString) {
  let textArea = document.createElement('textarea');
  textArea.innerHTML = encodedString;
  return textArea.value;
}

function parseHtml(html, ...selectors) {
  let formData = new FormData();
  formData.append("html", html);
  let options = {
    method: "POST",
    body: formData
  };

  let req = new Request("upload.php?action=parse_html", options);
  fetch(req).then(async (rsp) => {
    let text = await rsp.text();
    for (let selector of selectors) {
      let el = document.querySelector(selector);
      if (el !== null) {
        el.value = text;
      }
    }
  });
}

function applyJson(data) {
  let group = data['response']['group'];
  group["name"] = decodeEntities(group["name"]);
  group["recordLabel"] = decodeEntities(group["recordLabel"]);
  let torrent = data['response']['torrent'];
  let mapping = {
    title: 'name',
    year: 'year',
    image: 'wikiImage'
  };

  unsafeWindow.FillInFields(mapping, group);
  unsafeWindow.ParseMusicJson(group, torrent);

  if (group["tags"]) {
    document.querySelector("#tags").value = group["tags"].join(",");
  }

  if (group["wikiBody"]) {
    parseHtml(group["wikiBody"], "#desc", "#album_desc");

  }

  if (torrent["description"]) {
    parseHtml(torrent["description"], "#release_desc");
  }
}

function loadJson(url) {
  GM_xmlhttpRequest({
    method: "GET",
    url: url,
    onload: (response) => {
      let data = JSON.parse(response.responseText);
      console.log(data);
      applyJson(data);
    }
  });
}

function rewriteUrl(url) {
  return url.replace(/(.*)torrents.php\?torrentid=(\d+)/g, "$1ajax.php?action=torrent&id=$2");
}

let importRow = document.createElement("tr");

let textColumn = document.createElement("td");
let text = document.createTextNode("Import（其他PT站点PL链接）:")
textColumn.append(text);
textColumn.classList.add("label");
importRow.append(textColumn);

let input = document.createElement("input");
let inputColumn = document.createElement("td");
let importButton = document.createElement("input");
input.setAttribute("id", "import_input");
input.setAttribute("type", "text");
input.setAttribute("size", "40");
importButton.setAttribute("type", "button");
importButton.setAttribute("value", "Import（导入）!");
inputColumn.append(input);
importRow.append(inputColumn);
inputColumn.append(importButton);

let musicbrainzRow = document.querySelector("#musicbrainz_tr");
musicbrainzRow.parentNode.insertBefore(importRow, musicbrainzRow);

importButton.addEventListener("click", (e) => {
  loadJson(rewriteUrl(input.value));
})