mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
282 lines
7.1 KiB
JavaScript
282 lines
7.1 KiB
JavaScript
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/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var path = require("path");
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var fs = require("fs-extra");
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var os = require("os");
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var util = require("@node-red/registry/lib/util");
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var api;
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var runtime;
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var settings;
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var exec;
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var log;
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var npmCommand = (process.platform === "win32") ? "npm.cmd" : "npm";
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var moduleProp = {};
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var moduleBase = null;
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var allowInstall = true;
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var allowList = ["*"];
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var denyList = [];
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/**
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* Initialise npm install module.
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* @param {Object} _runtime - runtime object
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*/
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function init(_runtime) {
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runtime = _runtime;
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settings = _runtime.settings;
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exec = _runtime.exec;
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log = _runtime.log;
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moduleProp = {};
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moduleBase = settings.userDir || process.env.NODE_RED_HOME || ".";
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if (settings.hasOwnProperty("externalModules")) {
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var em = settings.externalModules;
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if (em && em.hasOwnProperty("modules")) {
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var mod = em.modules;
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if (mod.hasOwnProperty("allowInstall")) {
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allowInstall = mod.allowInstall;
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}
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if (mod.hasOwnProperty("allowList")) {
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var alist = mod.allowList;
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if (Array.isArray(alist)) {
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allowList = alist;
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}
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else {
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log.warn("unexpected value of externalModule.allowList in settings.js");
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}
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}
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if (mod.hasOwnProperty("denyList")) {
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var dlist = mod.denyList;
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if (Array.isArray(dlist)) {
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denyList = dlist;
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}
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else {
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log.warn("unexpected value of externalModule.denyList in settings.js");
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}
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}
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}
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}
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}
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/**
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* Register dynamic module installation property.
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* @param {string} type - node type
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* @param {string} prop - property name
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*/
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function register(type, prop) {
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if (prop) {
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moduleProp[type] = prop;
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}
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else {
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delete moduleProp[prop]
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}
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}
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/**
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* Get path to install modules
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*/
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function modulePath() { // takes variable length arguments in `arguments`
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var result = moduleBase;
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result = path.join(result, "lib", "node_modules");
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for(var i = 0; i < arguments.length; i++) {
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result = path.join(result, arguments[i]);
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}
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return result;
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}
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/**
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* Decompose NPM module specification string
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* @param {string} module - module specification
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*/
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function moduleName(module) {
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var match = /^([^@]+@.+)/.exec(module);
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if (match) {
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return [match[1], match[2]];
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}
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return [module, undefined];
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}
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/**
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* Get NPM module package info
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* @param {string} name - module name
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* @param {string} name - module version
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*/
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function infoNPM(name, ver) {
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var path = modulePath(name, "package.json");
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try {
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var pkg = require(path);
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return pkg;
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}
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catch (e) {
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}
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return null;
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}
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/**
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* Ensure existance of module installation directory
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*/
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function ensureLibDirectory() {
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var path = modulePath();
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if (!fs.existsSync(path)) {
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fs.mkdirSync(path, {
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recursive: true
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});
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return fs.existsSync(path);
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}
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return true;
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}
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/**
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* Install NPM module
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* @param {string} module - module specification
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*/
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function installNPM(module) {
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var [name, ver] = moduleName(module);
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if (!ensureLibDirectory()) {
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log.warn("failed to install: "+name);
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return;
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}
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var pkg = infoNPM(name, ver);
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if (!pkg) {
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var args = ["install", module];
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var dir = modulePath();
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return exec.run(npmCommand, args, {
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cwd: dir
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}, true).then(result => {
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if (result && (result.code === 0)) {
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log.info("successfully installed: "+name);
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}
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else {
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log.warn("failed to install: "+name);
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}
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}).catch(e => {
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var msg = e.hasOwnProperty("stderr") ? e.stderr : e;
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log.warn("failed to install: "+name);
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});
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}
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else {
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log.info("already installed: "+name);
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}
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return Promise.resolve();
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}
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/**
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* Check allowance of NPM module installation
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* @param {string} name - module specification
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*/
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function isAllowed(name) {
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if (!allowInstall) {
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return false;
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}
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var [module, ver] = moduleName(name);
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var aList = util.parseModuleList(allowList);
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var dList = util.parseModuleList(denyList);
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return util.checkModuleAllowed(module, ver, aList, dList);
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}
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/**
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* Check and install NPM module according to dynamic module specification
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* @param {Object} node - node object
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*/
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function checkInstall(node) {
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var name = null;
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if(moduleProp.hasOwnProperty(node.type)) {
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name = moduleProp[node.type];
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}
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var promises = [];
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if (name && node.hasOwnProperty(name)) {
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var modules = node[name];
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modules.forEach(module => {
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var name = module;
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if ((typeof module === "object") &&
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module &&
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module.hasOwnProperty("name")) {
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name = module.name;
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}
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if (isAllowed(name)) {
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promises.push(installNPM(name));
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}
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else {
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log.info("installation not allowed: "+name);
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}
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});
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}
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return Promise.all(promises);
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}
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/**
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* Load NPM module
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* @param {string} module - module to load
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*/
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function load(module) {
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try {
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var [name, ver] = moduleName(module);
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var path = modulePath(name);
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var npm = require(path);
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return npm;
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}
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catch (e) {
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return null;
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}
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}
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/**
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* Get list of installed modules
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*/
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function listModules() {
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var modPath = modulePath();
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if (!fs.existsSync(modPath)) {
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return [];
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}
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var dir = fs.opendirSync(modPath);
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var modules = [];
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if (dir) {
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var ent = null;
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while (ent = dir.readSync()) {
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var name = ent.name;
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if (ent.isDirectory() &&
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(name[0] !== ".")) {
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var pkgPath = path.join(modPath, name, "package.json");
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if (fs.existsSync(pkgPath)) {
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var pkg = fs.readJSONSync(pkgPath);
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var info = {
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name: pkg.name,
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version: pkg.version
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};
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modules.push(info);
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}
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}
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}
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dir.closeSync();
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}
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return modules;
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}
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api = {
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init: init,
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register: register,
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checkInstall: checkInstall,
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load: load,
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list: listModules
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};
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module.exports = api;
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