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plugin.js
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plugin.js
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const JSZip = require("jszip");
function registerPlugins(data) {
let functions = [];
let manifest;
for (const k in data.config.plugins) {
//console.log(config[k], k);
if (!data.config.plugins[k].enabled) continue;
try {
let path = global.path.join(eApp.getPath('userData'), "plugins", k);
const fs = new WSC.FileSystem(path); //no point in catching it if we're just going to throw it again.
manifest = JSON.parse(fs.getByPath('/plugin.json').text());
if (!path.endsWith('/')) path+='/';
//console.log(path+manifest.script)
if (validatePluginManifest(manifest) && manifest.id == k) {
functions.push([require(path+manifest.script), manifest.id]);
}
} catch(e) {
console.warn('error registering plugin', e);
}
}
return {
fs,
manifest,
functions: {
onStart: function(s, settings) {
for (let i=0; i<functions.length; i++) {
if (typeof functions[i][0].onStart !== 'function') continue;
functions[i][0].onStart(s, settings[functions[i][1]] || {});
}
},
onRequest: function(req, res, pv, settings) {
let prevented = false;
let prvt = ()=>{prevented=true;}
for (let i=0; i<functions.length; i++) {
if (typeof functions[i][0].onRequest !== 'function') continue;
functions[i][0].onRequest(req, res, settings[functions[i][1]] || {}, prvt);
if (prevented) pv();
}
}
}
};
}
//https://stackoverflow.com/questions/13786160/copy-folder-recursively-in-node-js
function copyFileSync(source, target) {
let targetFile = target;
// If target is a directory, a new file with the same name will be created
if (fs.existsSync(target)) {
if (fs.lstatSync(target).isDirectory()) {
targetFile = path.join(target, path.basename(source));
}
}
const bm = bookmarks.matchAndAccess(source);
fs.writeFileSync(targetFile, fs.readFileSync(source));
bookmarks.release(bm);
}
function copyFolderRecursiveSync(source, targetFolder) {
//console.log('copy', source, targetFolder);
if (!fs.existsSync(targetFolder)) fs.mkdirSync(targetFolder);
if (!fs.lstatSync(source).isDirectory()) return;
let files = fs.readdirSync(source);
for (let i=0; i<files.length; i++) {
let curSource = path.join(source, files[i]);
const bm = bookmarks.matchAndAccess(curSource);
if (fs.lstatSync(curSource).isDirectory()) {
copyFolderRecursiveSync(curSource, path.join(targetFolder, files[i]));
} else {
copyFileSync(curSource, path.join(targetFolder, files[i]));
}
bookmarks.release(bm);
}
}
function deleteFolder(folder) {
if (!fs.lstatSync(folder).isDirectory()) return;
let files = fs.readdirSync(folder);
for (let i=0; i<files.length; i++) {
let curSource = path.join(folder, files[i]);
if (fs.lstatSync(curSource).isDirectory()) deleteFolder(curSource);
try {
fs.unlinkSync(curSource);
} catch(e) {}
}
fs.rmdirSync(folder);
}
function getPluginInfo(id) {
let path = global.path.join(eApp.getPath('userData'), "plugins", id);
let fs = new WSC.FileSystem(path);
let manifest = JSON.parse(fs.getByPath('/plugin.json').text());
if (!(validatePluginManifest(manifest) && manifest.id == id)) throw new Error('Not a valid plugin');
return manifest;
}
function getZipFiles(zip, basePath) {
let rv = [];
for (const file in zip.files) {
if (basePath !== '') {
if (!file.startsWith(basePath)) continue
}
rv.push(file);
}
return rv;
}
async function copyFolderRecursiveSyncFromZip(zip, targetFolder, basePath) {
//console.log('copy', targetFolder);
if (!fs.existsSync(targetFolder)) fs.mkdirSync(targetFolder);
let files = getZipFiles(zip, basePath);
//console.log(basePath, files.length);
for (let i=0; i<files.length; i++) {
if (zip.files[files[i]].dir) continue;
let name = files[i];
if (basePath !== '') {
name = name.replace(basePath, '');
}
if (name === '') continue;
let fileName = path.join(targetFolder, name);
try {
if (!fs.existsSync(path.dirname(fileName))) {
fs.mkdirSync(path.dirname(fileName), {recursive:true});
}
} catch(e) {}
fs.writeFileSync(fileName, await zip.files[files[i]].async("nodebuffer"));
}
}
function importPlugin(path, callback) {
if (!global.fs.existsSync(global.path.join(eApp.getPath('userData'), "plugins"))) {
global.fs.mkdirSync(global.path.join(eApp.getPath('userData'), "plugins"));
}
let fs;
try {
fs = new WSC.FileSystem(path);
const manifest = JSON.parse(fs.getByPath('/plugin.json').text());
if (!validatePluginManifest(manifest)) throw new Error('not a valid plugin');
if (global.fs.existsSync(global.path.join(eApp.getPath('userData'), "plugins", manifest.id))) {
deleteFolder(global.path.join(eApp.getPath('userData'), "plugins", manifest.id));
}
copyFolderRecursiveSync(path, global.path.join(eApp.getPath('userData'), "plugins", manifest.id));
callback(manifest.id);
} catch(e) {
const bm = bookmarks.matchAndAccess(path);
JSZip.loadAsync(global.fs.readFileSync(path)).then(async zip => {
let file = Object.keys(zip.files).filter(fileName => fileName.endsWith('plugin.json')&&!fileName.endsWith('.plugin.json'))[0];
const manifest = JSON.parse(await zip.files[file].async("string"));
if (!validatePluginManifest(manifest)) {
bookmarks.release(bm);
throw new Error('not a valid plugin');
}
if (global.fs.existsSync(global.path.join(eApp.getPath('userData'), "plugins", manifest.id))) {
deleteFolder(global.path.join(eApp.getPath('userData'), "plugins", manifest.id));
}
let basePath = file.includes('/') ? file.substring(0, file.length-file.split('/').pop().length) : '';
await copyFolderRecursiveSyncFromZip(zip, global.path.join(eApp.getPath('userData'), "plugins", manifest.id), basePath);
bookmarks.release(bm);
callback(manifest.id);
});
}
}
async function getPluginManifestFromPath(path) {
let fs;
try {
fs = new WSC.FileSystem(path);
const manifest = JSON.parse(fs.getByPath('/plugin.json').text());
if (!validatePluginManifest(manifest)) throw new Error('not a valid plugin');
return manifest;
} catch(e) {
const bm = bookmarks.matchAndAccess(path);
const zip = await JSZip.loadAsync(global.fs.readFileSync(path))
let file = Object.keys(zip.files).filter(fileName => fileName.endsWith('plugin.json')&&!fileName.endsWith('.plugin.json'))[0];
const manifest = JSON.parse(await zip.files[file].async("string"));
bookmarks.release(bm);
if (!validatePluginManifest(manifest)) throw new Error('not a valid plugin');
return manifest;
}
}
function validatePluginManifest(manifest) {
if (manifest && typeof manifest == "object" && typeof manifest.id == "string" && manifest.id.match(/^[A-Za-z0-9\-_]+$/) && typeof manifest.script == "string" && typeof manifest.name == "string" && manifest.name.length <= 64) {
if (typeof manifest.options == "object") {
if (Array.isArray(manifest.options)) {
function validateOption(option) {
if (option && typeof option == "object" && typeof option.id == "string" && option.id.match(/^[A-Za-z0-9\-_]+$/) && option.id !== "enabled" && typeof option.name == "string" && option.name.length <= 512 && (typeof option.description == "undefined" || typeof option.description == "string")) {
if (option.type == "bool") {
return typeof option.default == "boolean";
} else if (option.type == "string") {
return typeof option.default == "string";
} else if (option.type == "number") {
return typeof option.default == "number" && (typeof option.min == "number" || typeof option.min == "undefined") && (typeof option.max == "number" || typeof option.max == "undefined");
} else if (option.type == "select") {
if (typeof option.choices == "object" && Array.isArray(option.choices) && option.choices.length > 0) {
function validateChoice(choice) {
return choice && typeof choice == "object" && typeof choice.id == "string" && choice.id.match(/^[A-Za-z0-9\-_]+$/) && typeof choice.name == "string" && choice.name.length <= 512;
}
return option.choices.every(validateChoice) && typeof option.default == "string" && option.choices.map(a => a.id).indexOf(option.default) > -1 && option.choices.map(a => a.id).filter((item, i, ar) => ar.indexOf(item) === i).length == option.choices.length;
} else {
return false;
}
} else {
return false;
}
} else {
return false;
}
}
return manifest.options.every(validateOption) && manifest.options.map(a => a.id).filter((item, i, ar) => ar.indexOf(item) === i).length == manifest.options.length;
} else {
return false;
}
} else {
return true;
}
} else {
return false;
}
}
function removePlugin(id) {
if (!fs.existsSync(global.path.join(eApp.getPath('userData'), "plugins", id))) return;
deleteFolder(path.join(eApp.getPath('userData'), "plugins", id));
}
function getInstalledPlugins() {
let data = {};
let files = [];
try {
files = fs.readdirSync(global.path.join(eApp.getPath('userData'), "plugins"), {encoding: 'utf-8'});
} catch(e) {
console.warn(e);
return data;
}
for (let i=0; i<files.length; i++) {
try {
data[files[i]] = getPluginInfo(files[i]);
} catch(e) {
if (e.message === 'Entered path is not directory') continue;
console.warn('Could not import plugin '+files[i], e);
continue;
};
}
return data;
}
module.exports = {registerPlugins, importPlugin, getPluginManifestFromPath, removePlugin, getInstalledPlugins};