Download selected files and folders from GitHub repositories.
目前为
// ==UserScript==
// @name GitZip Lite
// @icon https://www.google.com/s2/favicons?sz=64&domain=github.com
// @namespace https://github.com/tizee/tempermonkey-gitzip-lite
// @version 1.3
// @description Download selected files and folders from GitHub repositories.
// @author tizee
// @match https://github.com/*/*
// @require https://cdnjs.cloudflare.com/ajax/libs/jszip/3.7.1/jszip.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js
// @grant GM_xmlhttpRequest
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_addStyle
// @grant GM_registerMenuCommand
// @connect api.github.com
// @run-at document-end
// @license MIT
// ==/UserScript==
(function() {
'use strict';
const itemCollectSelector = "div.js-navigation-item, table tbody tr.react-directory-row > td[class$='cell-large-screen']";
const tokenKey = 'githubApiToken';
const { parseRepoURL, getGitURL, getInfoURL } = {
parseRepoURL: (repoUrl) => { // mock implementation
const repoExp = new RegExp("^https://github.com/([^/]+)/([^/]+)(/(tree|blob)/([^/]+)(/(.*))?)?");
const matches = repoUrl.match(repoExp);
if (!matches || matches.length === 0) return null;
const author = matches[1];
const project = matches[2];
const branch = matches[5];
const type = matches[4];
const path = matches[7] || '';
const rootUrl = branch ?
`https://github.com/${author}/${project}/tree/${branch}` :
`https://github.com/${author}/${project}`;
if (!type && (repoUrl.length - rootUrl.length > 1)) {
return null;
}
return {
author,
project,
branch,
type,
path,
inputUrl: repoUrl,
rootUrl
};
},
getGitURL: (author, project, type, sha) => { // mock implementation
if (type === "blob" || type === "tree") {
const pluralType = type + "s";
return `https://api.github.com/repos/${author}/${project}/git/${pluralType}/${sha}`;
}
return null;
},
getInfoURL: (author, project, path, branch) => { // mock implementation
let url = `https://api.github.com/repos/${author}/${project}/contents/${path}`;
if (branch) {
url += `?ref=${branch}`;
}
return url;
}
};
// --- GitZip Functions ---
function base64toBlob(base64Data, contentType) {
contentType = contentType || '';
const sliceSize = 1024;
const byteCharacters = atob(base64Data);
const bytesLength = byteCharacters.length;
const slicesCount = Math.ceil(bytesLength / sliceSize);
const byteArrays = new Array(slicesCount);
for (let sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
const begin = sliceIndex * sliceSize;
const end = Math.min(begin + sliceSize, bytesLength);
const bytes = new Array(end - begin);
for (let offset = begin, i = 0; offset < end; ++i, ++offset) {
bytes[i] = byteCharacters[offset].charCodeAt(0);
}
byteArrays[sliceIndex] = new Uint8Array(bytes);
}
return new Blob(byteArrays, { type: contentType });
}
function callAjax(url, token){
return new Promise(function(resolve, reject){
GM_xmlhttpRequest({
method: "GET",
url: url,
headers: {
"Authorization": token ? "token " + token : undefined,
"Accept": "application/json"
},
onload: function(response) {
if (response.status >= 200 && response.status < 300) {
try {
const jsonResponse = JSON.parse(response.responseText);
resolve({ response: jsonResponse });
} catch (e) {
console.debug("Error parsing JSON:", e);
reject(e);
}
} else {
console.debug("Request failed with status:", response.status);
reject(response);
}
},
onerror: function(error) {
console.debug("Request failed:", error);
reject(error);
}
});
});
}
// --- End GitZip Functions ---
function addCheckboxes() {
const fileRows = document.querySelectorAll(itemCollectSelector);
fileRows.forEach(row => {
if (row.querySelector('.gitziplite-check-wrap')) return;
// Ensure the row is relatively positioned
row.style.position = 'relative';
const checkboxContainer = document.createElement('div');
checkboxContainer.classList.add('gitziplite-check-wrap');
checkboxContainer.style.position = 'absolute';
checkboxContainer.style.left = '4px';
checkboxContainer.style.top = '50%';
checkboxContainer.style.transform = 'translateY(-50%)';
checkboxContainer.style.display = 'flex';
checkboxContainer.style.alignItems = 'center';
checkboxContainer.style.height = '100%';
checkboxContainer.style.display = 'none';
const checkbox = document.createElement('input');
checkbox.type = 'checkbox';
checkbox.classList.add('gitziplite-checkbox');
checkboxContainer.appendChild(checkbox);
// Find the first element to insert before. Handles both file and directory rows.
const insertBeforeElement = row.firstChild;
if (insertBeforeElement) {
row.insertBefore(checkboxContainer, insertBeforeElement);
} else {
row.appendChild(checkboxContainer); // Fallback if no children exist
}
// Add event listeners for hover
row.addEventListener('mouseenter', () => {
checkboxContainer.style.display = 'flex';
});
row.addEventListener('mouseleave', () => {
if (!checkbox.checked) {
checkboxContainer.style.display = 'none';
}
});
row.addEventListener('dblclick', () => {
console.debug("double click", row, checkbox);
if (checkbox.checked) {
checkboxContainer.style.display = 'none';
} else {
checkboxContainer.style.display = 'flex';
}
checkbox.checked = !checkbox.checked;
checkbox.dispatchEvent(new Event('change'));
});
// Add event listener for checkbox change
checkbox.addEventListener('change', () => {
let link;
if (row.tagName === 'TD') {
link = row.querySelector('a[href]');
} else {
link = row.querySelector('a[href]');
}
if (link) {
const title = link.textContent.trim();
const message = checkbox.checked ? `Selected: ${title}` : `Unselected: ${title}`;
logMessage(message);
}
});
});
}
let logWindow;
let logToggleButton;
// Define default button styles
const defaultButtonStyle = `
border: 1px solid #ccc;
padding: 0.3rem 0.6rem;
cursor: pointer;
margin-bottom: 0.5rem;
`;
function createDownloadButton() {
// Main container
const mainContainer = document.createElement('div');
mainContainer.style.position = 'fixed';
mainContainer.style.bottom = '1rem';
mainContainer.style.right = '1rem';
mainContainer.style.zIndex = '1000';
// Log Window
logWindow = document.createElement('textarea');
logWindow.setAttribute('aria-label', 'Log Window');
logWindow.style.width = '100%';
logWindow.style.height = '10rem';
logWindow.style.marginBottom = '0.5rem';
logWindow.style.resize = 'none';
logWindow.style.overflow = 'auto';
logWindow.readOnly = true;
logWindow.hidden = true;
logWindow.style.border = '1px solid #ccc';
logWindow.style.padding = '0.2rem';
// Log Toggle Button
logToggleButton = document.createElement('button');
logToggleButton.textContent = 'Show Log';
logToggleButton.style.cssText = defaultButtonStyle;
logToggleButton.addEventListener('click', () => {
logWindow.hidden = !logWindow.hidden;
logToggleButton.textContent = logWindow.hidden ? 'Show Log' : 'Hide Log';
});
// Download Button
const downloadButton = document.createElement('button');
downloadButton.textContent = 'Download Selected';
downloadButton.style.cssText = defaultButtonStyle;
downloadButton.addEventListener('click', downloadSelected);
// Assemble the UI
const form = document.createElement('div');
form.style.display = 'flex';
form.style.flexDirection = 'column';
form.style.gap = '0.5rem';
form.appendChild(logToggleButton);
form.appendChild(logWindow);
form.appendChild(downloadButton);
mainContainer.appendChild(form);
document.body.appendChild(mainContainer);
}
function logMessage(message) {
logWindow.value += message + '\n';
logWindow.scrollTop = logWindow.scrollHeight; // Auto-scroll to bottom
}
/**
* Collects selected files and folders from the DOM.
* @returns {{files: [], folders: []}} - An object containing arrays of selected files and folders.
*/
function collectSelectedItems() {
const selectedFiles = [];
const selectedFolders = [];
const checkboxes = document.querySelectorAll('.gitziplite-checkbox:checked');
checkboxes.forEach(checkbox => {
const row = checkbox.parentNode.parentNode; // Direct parent access
if (!row) {
console.warn("Could not find a parent row for a selected checkbox.");
return; // Skip to the next checkbox
}
console.debug(row);
let link;
if (row.tagName === 'TD') {
link = row.querySelector('a[href]');
} else {
link = row.querySelector('a[href]');
}
if (link) {
const href = link.href;
const title = link.textContent.trim();
const resolved = parseRepoURL(href);
if (resolved && resolved.type === 'blob') {
selectedFiles.push({ href: href, title: title });
} else if (resolved && resolved.type === 'tree') {
selectedFolders.push({ href: href, title: title });
}
}
});
return { files: selectedFiles, folders: selectedFolders };
}
/**
* Zips the given contents and triggers a download.
* @param {Array<{path: string, content: string}>} allContents - Array of file contents to zip.
* @param {object} resolvedUrl - Parsed URL information of the repository.
*/
function zipAndDownload(allContents, resolvedUrl) {
if (allContents.length === 1) {
// If only one file is selected, download it directly
const singleItem = allContents[0];
const blob = base64toBlob(singleItem.content, '');
saveAs(blob, singleItem.path);
} else {
// If multiple files are selected, zip them
try {
const currDate = new Date();
const dateWithOffset = new Date(currDate.getTime() - currDate.getTimezoneOffset() * 60000);
window.JSZip.defaults.date = dateWithOffset;
const zip = new window.JSZip();
allContents.forEach(item => {
zip.file(item.path, item.content, { createFolders: true, base64: true });
});
zip.generateAsync({ type: "blob" })
.then(content => {
saveAs(content, [resolvedUrl.project].concat(resolvedUrl.path.split('/')).join('-') + ".zip");
});
} catch (error) {
console.debug("Error zipping files:", error);
logMessage("Error zipping files.");
}
}
}
async function downloadSelected() {
const { files: selectedFiles, folders: selectedFolders } = collectSelectedItems();
if (selectedFiles.length === 0 && selectedFolders.length === 0) {
logMessage('No files or folders selected.');
return;
}
const resolvedUrl = parseRepoURL(window.location.href);
if (!resolvedUrl) {
logMessage("Could not resolve repository URL.");
return;
}
const githubToken = GM_getValue(tokenKey);
if (!githubToken) {
logMessage("GitHub API token is not set. Please set it in the Tampermonkey dashboard.");
return;
}
const allContents = [];
async function processFolder(folder, pathPrefix = "") {
logMessage(`Processing folder: ${folder.title}`);
const folderResolvedUrl = parseRepoURL(folder.href);
const apiUrl = getInfoURL(folderResolvedUrl.author, folderResolvedUrl.project, folderResolvedUrl.path, folderResolvedUrl.branch);
try {
const xmlResponse = await callAjax(apiUrl, githubToken);
const folderContents = xmlResponse.response;
for (const item of folderContents) {
const itemPath = pathPrefix + "/" + item.name;
if (item.type === 'file') {
logMessage(`Processing file: ${itemPath}`);
const fileInfoUrl = getInfoURL(folderResolvedUrl.author, folderResolvedUrl.project, folderResolvedUrl.path + "/" + item.name, folderResolvedUrl.branch);
const fileXmlResponse = await callAjax(fileInfoUrl, githubToken);
const fileContent = fileXmlResponse.response;
allContents.push({
path: itemPath,
content: fileContent.content
});
} else if (item.type === 'dir') {
await processFolder({ href: folder.href + "/" + item.name, title: item.name }, itemPath);
}
}
} catch (error) {
console.debug("Error fetching folder:", folder.title, error);
logMessage(`Error fetching folder: ${folder.title}`);
}
}
for (const folder of selectedFolders) {
await processFolder(folder, folder.title);
}
for (const file of selectedFiles) {
logMessage(`Processing file: ${file.title}`);
const fileResolvedUrl = parseRepoURL(file.href);
const infoUrl = getInfoURL(fileResolvedUrl.author, fileResolvedUrl.project, fileResolvedUrl.path, fileResolvedUrl.branch);
try {
const xmlResponse = await callAjax(infoUrl, githubToken);
const fileContent = xmlResponse.response;
allContents.push({
path: file.title,
content: fileContent.content
});
} catch (error) {
console.debug("Error fetching file:", file.title, error);
logMessage(`Error fetching file: ${file.title}`);
return;
}
}
zipAndDownload(allContents, resolvedUrl);
logMessage("Download complete.");
}
// Register menu command for setting token
GM_registerMenuCommand('Set GitHub API Token', () => {
const token = prompt('Enter your GitHub API token:');
if (token) {
GM_setValue(tokenKey, token);
alert('Token saved successfully!');
}
});
function onDomLoaded() {
addCheckboxes();
createDownloadButton();
}
function onUrlChange() {
addCheckboxes();
}
// Initialize
onDomLoaded();
// Observe GitHub repository page URL changes (e.g., navigating into a new directory)
const observer = new MutationObserver(onUrlChange);
observer.observe(document.body, { childList: true, subtree: true });
})();
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