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625 lines
17 KiB
JavaScript
625 lines
17 KiB
JavaScript
var fs = require('fs'),
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path = require('path'),
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async = require('async'),
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winston = require('winston'),
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nconf = require('nconf'),
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eventEmitter = require('events').EventEmitter,
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semver = require('semver'),
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db = require('./database'),
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meta = require('./meta'),
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utils = require('./../public/src/utils'),
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pkg = require('../package.json');
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(function(Plugins) {
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Plugins.libraries = {};
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Plugins.loadedHooks = {};
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Plugins.staticDirs = {};
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Plugins.cssFiles = [];
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Plugins.lessFiles = [];
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Plugins.clientScripts = [];
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Plugins.initialized = false;
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// Events
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Plugins.readyEvent = new eventEmitter;
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Plugins.init = function() {
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if (Plugins.initialized) {
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return;
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}
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if (global.env === 'development') {
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winston.info('[plugins] Initializing plugins system');
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}
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Plugins.reload(function(err) {
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if (err) {
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if (global.env === 'development') {
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winston.info('[plugins] NodeBB encountered a problem while loading plugins', err.message);
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}
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return;
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}
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if (global.env === 'development') {
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winston.info('[plugins] Plugins OK');
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}
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Plugins.initialized = true;
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Plugins.readyEvent.emit('ready');
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});
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};
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Plugins.ready = function(callback) {
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if (!Plugins.initialized) {
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Plugins.readyEvent.once('ready', callback);
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} else {
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callback();
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}
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};
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Plugins.reload = function(callback) {
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// Resetting all local plugin data
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Plugins.loadedHooks = {};
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Plugins.staticDirs = {};
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Plugins.cssFiles.length = 0;
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Plugins.lessFiles.length = 0;
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Plugins.clientScripts.length = 0;
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// Read the list of activated plugins and require their libraries
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async.waterfall([
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function(next) {
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db.getSetMembers('plugins:active', next);
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},
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function(plugins, next) {
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if (!plugins || !Array.isArray(plugins)) {
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next();
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}
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plugins.push(meta.config['theme:id']);
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plugins = plugins.filter(function(plugin){
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return plugin && typeof plugin === 'string';
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}).map(function(plugin){
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return path.join(__dirname, '../node_modules/', plugin);
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});
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async.filter(plugins, fs.exists, function(plugins){
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async.each(plugins, Plugins.loadPlugin, next);
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});
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},
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function(next) {
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if (global.env === 'development') winston.info('[plugins] Sorting hooks to fire in priority sequence');
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Object.keys(Plugins.loadedHooks).forEach(function(hook) {
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var hooks = Plugins.loadedHooks[hook];
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hooks = hooks.sort(function(a, b) {
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return a.priority - b.priority;
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});
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});
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next();
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}
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], callback);
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};
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Plugins.loadPlugin = function(pluginPath, callback) {
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fs.readFile(path.join(pluginPath, 'plugin.json'), function(err, data) {
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if (err) {
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return callback(pluginPath.match('nodebb-theme') ? null : err);
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}
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var pluginData = JSON.parse(data),
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libraryPath, staticDir;
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if (pluginData.minver && semver.validRange(pluginData.minver)) {
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if (!semver.gt(pkg.version, pluginData.minver)) {
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// If NodeBB is not new enough to run this plugin
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winston.warn('[plugins/' + pluginData.id + '] This plugin may not be compatible with your version of NodeBB. This may cause unintended behaviour or crashing.');
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}
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}
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async.parallel([
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function(next) {
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if (pluginData.library) {
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libraryPath = path.join(pluginPath, pluginData.library);
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fs.exists(libraryPath, function(exists) {
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if (exists) {
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if (!Plugins.libraries[pluginData.id]) {
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Plugins.libraries[pluginData.id] = require(libraryPath);
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}
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// Register hooks for this plugin
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if (pluginData.hooks && Array.isArray(pluginData.hooks) && pluginData.hooks.length > 0) {
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async.each(pluginData.hooks, function(hook, next) {
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Plugins.registerHook(pluginData.id, hook, next);
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}, next);
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} else {
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next(null);
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}
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} else {
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winston.warn('[plugins.reload] Library not found for plugin: ' + pluginData.id);
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next();
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}
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});
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} else {
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winston.warn('[plugins.reload] Library not found for plugin: ' + pluginData.id);
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next();
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}
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},
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function(next) {
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// Static Directories for Plugins
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var realPath,
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validMappedPath = /^[\w\-_]+$/;
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pluginData.staticDirs = pluginData.staticDirs || {};
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// Deprecated, to be removed v0.5
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if (pluginData.staticDir) {
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winston.warn('[plugins/' + pluginData.id + '] staticDir is deprecated, use staticDirs instead');
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Plugins.staticDirs[pluginData.id] = path.join(pluginPath, pluginData.staticDir);
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}
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for(var key in pluginData.staticDirs) {
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(function(mappedPath) {
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if (pluginData.staticDirs.hasOwnProperty(mappedPath)) {
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if (Plugins.staticDirs[mappedPath]) {
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winston.warn('[plugins/' + pluginData.id + '] Mapped path (' + mappedPath + ') already specified!');
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} else if (!validMappedPath.test(mappedPath)) {
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winston.warn('[plugins/' + pluginData.id + '] Invalid mapped path specified: ' + mappedPath + '. Path must adhere to: ' + validMappedPath.toString());
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} else {
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realPath = pluginData.staticDirs[mappedPath];
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staticDir = path.join(pluginPath, realPath);
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(function(staticDir) {
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fs.exists(staticDir, function(exists) {
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if (exists) {
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Plugins.staticDirs[pluginData.id + '/' + mappedPath] = staticDir;
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} else {
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winston.warn('[plugins/' + pluginData.id + '] Mapped path \'' + mappedPath + ' => ' + staticDir + '\' not found.');
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}
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});
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}(staticDir));
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}
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}
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}(key));
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}
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next();
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},
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function(next) {
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// CSS Files for plugins
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if (pluginData.css && pluginData.css instanceof Array) {
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if (global.env === 'development') {
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winston.info('[plugins] Found ' + pluginData.css.length + ' CSS file(s) for plugin ' + pluginData.id);
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}
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Plugins.cssFiles = Plugins.cssFiles.concat(pluginData.css.map(function(file) {
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if (fs.existsSync(path.join(__dirname, '../node_modules', pluginData.id, file))) {
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return path.join(pluginData.id, file);
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} else {
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// Backwards compatibility with < v0.4.0, remove this for v0.5.0
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if (pluginData.staticDir) {
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return path.join(pluginData.id, pluginData.staticDir, file);
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} else {
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winston.error('[plugins/' + pluginData.id + '] This plugin\'s CSS is incorrectly configured, please contact the plugin author.');
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return null;
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}
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}
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}).filter(function(path) { return path })); // Filter out nulls, remove this for v0.5.0
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}
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next();
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},
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function(next) {
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// LESS files for plugins
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if (pluginData.less && pluginData.less instanceof Array) {
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if (global.env === 'development') {
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winston.info('[plugins] Found ' + pluginData.less.length + ' LESS file(s) for plugin ' + pluginData.id);
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}
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Plugins.lessFiles = Plugins.lessFiles.concat(pluginData.less.map(function(file) {
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return path.join(pluginData.id, file);
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}));
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}
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next();
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},
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function(next) {
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// Client-side scripts
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if (pluginData.scripts && pluginData.scripts instanceof Array) {
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if (global.env === 'development') {
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winston.info('[plugins] Found ' + pluginData.scripts.length + ' js file(s) for plugin ' + pluginData.id);
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}
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Plugins.clientScripts = Plugins.clientScripts.concat(pluginData.scripts.map(function(file) {
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return path.join(__dirname, '../node_modules/', pluginData.id, file);
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}));
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}
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next();
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}
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], function(err) {
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if (!err) {
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if (global.env === 'development') {
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winston.info('[plugins] Loaded plugin: ' + pluginData.id);
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}
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callback();
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} else {
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callback(new Error('Could not load plugin system'));
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}
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});
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});
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};
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Plugins.registerHook = function(id, data, callback) {
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/*
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`data` is an object consisting of (* is required):
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`data.hook`*, the name of the NodeBB hook
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`data.method`*, the method called in that plugin
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`data.callbacked`, whether or not the hook expects a callback (true), or a return (false). Only used for filters. (Default: false)
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`data.priority`, the relative priority of the method when it is eventually called (default: 10)
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*/
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var method;
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if (data.hook && data.method && typeof data.method === 'string' && data.method.length > 0) {
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data.id = id;
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if (!data.priority) data.priority = 10;
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method = data.method.split('.').reduce(function(memo, prop) {
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if (memo !== null && memo[prop]) {
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return memo[prop];
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} else {
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// Couldn't find method by path, aborting
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return null;
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}
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}, Plugins.libraries[data.id]);
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if (method === null) {
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winston.warn('[plugins/' + id + '] Hook method mismatch: ' + data.hook + ' => ' + data.method);
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return callback();
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}
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// Write the actual method reference to the hookObj
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data.method = method;
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Plugins.loadedHooks[data.hook] = Plugins.loadedHooks[data.hook] || [];
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Plugins.loadedHooks[data.hook].push(data);
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callback();
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} else return;
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};
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Plugins.hasListeners = function(hook) {
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return (Plugins.loadedHooks[hook] && Plugins.loadedHooks[hook].length > 0);
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};
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Plugins.fireHook = function(hook) {
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var callback = typeof arguments[arguments.length-1] === "function" ? arguments[arguments.length-1] : null,
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args = arguments.length ? Array.prototype.slice.call(arguments, 1) : [];
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if (callback) {
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args.pop();
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}
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hookList = Plugins.loadedHooks[hook];
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if (hookList && Array.isArray(hookList)) {
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// if (global.env === 'development') winston.info('[plugins] Firing hook: \'' + hook + '\'');
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var hookType = hook.split(':')[0];
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switch (hookType) {
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case 'filter':
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async.reduce(hookList, args, function(value, hookObj, next) {
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if (hookObj.method) {
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if (!hookObj.hasOwnProperty('callbacked') || hookObj.callbacked === true) {
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var value = hookObj.method.apply(Plugins, value.concat(function() {
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next(arguments[0], Array.prototype.slice.call(arguments, 1));
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}));
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if (value !== undefined && value !== callback) {
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winston.warn('[plugins/' + hookObj.id + '] "callbacked" deprecated as of 0.4x. Use asynchronous method instead for hook: ' + hook);
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next(null, [value]);
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}
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} else {
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winston.warn('[plugins/' + hookObj.id + '] "callbacked" deprecated as of 0.4x. Use asynchronous method instead for hook: ' + hook);
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value = hookObj.method.apply(Plugins, value);
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next(null, [value]);
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}
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} else {
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if (global.env === 'development') {
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winston.info('[plugins] Expected method for hook \'' + hook + '\' in plugin \'' + hookObj.id + '\' not found, skipping.');
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}
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next(null, [value]);
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}
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}, function(err, values) {
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if (err) {
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if (global.env === 'development') {
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winston.info('[plugins] Problem executing hook: ' + hook);
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}
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}
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callback.apply(Plugins, [err].concat(values));
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});
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break;
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case 'action':
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async.each(hookList, function(hookObj) {
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if (hookObj.method) {
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hookObj.method.apply(Plugins, args);
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} else {
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if (global.env === 'development') {
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winston.info('[plugins] Expected method \'' + hookObj.method + '\' in plugin \'' + hookObj.id + '\' not found, skipping.');
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}
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}
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});
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break;
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default:
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// Do nothing...
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break;
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}
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} else {
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// Otherwise, this hook contains no methods
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if (callback) {
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callback.apply(this, [null].concat(args));
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}
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return args[0];
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}
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};
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Plugins.isActive = function(id, callback) {
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db.isSetMember('plugins:active', id, callback);
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};
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Plugins.toggleActive = function(id, callback) {
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Plugins.isActive(id, function(err, active) {
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if (err) {
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if (global.env === 'development') {
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winston.info('[plugins] Could not toggle active state on plugin \'' + id + '\'');
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}
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return callback(err);
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}
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db[(active ? 'setRemove' : 'setAdd')]('plugins:active', id, function(err, success) {
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if (err) {
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if (global.env === 'development') {
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winston.info('[plugins] Could not toggle active state on plugin \'' + id + '\'');
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}
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return callback(err);
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}
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meta.restartRequired = true;
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if (active) {
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Plugins.fireHook('action:plugin.deactivate', id);
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}
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// Reload meta data
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Plugins.reload(function() {
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if(!active) {
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Plugins.fireHook('action:plugin.activate', id);
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}
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if (typeof callback === 'function') {
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callback(null, {
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id: id,
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active: !active
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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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Plugins.toggleInstall = function(id, callback) {
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Plugins.isInstalled(id, function(err, installed) {
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if (err) {
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return callback(err);
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}
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var npm = require('npm');
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async.waterfall([
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function(next) {
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Plugins.isActive(id, next);
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},
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function(active, next) {
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if (active) {
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Plugins.toggleActive(id, function(err, status) {
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next(err);
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});
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return;
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}
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next();
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},
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function(next) {
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npm.load({}, next);
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},
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function(res, next) {
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npm.commands[installed ? 'uninstall' : 'install'](installed ? id : [id], next);
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}
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], function(err) {
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callback(err, {
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id: id,
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installed: !installed
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});
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});
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});
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};
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Plugins.getTemplates = function(callback) {
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var templates = {};
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Plugins.showInstalled(function(err, plugins) {
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async.each(plugins, function(plugin, next) {
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if (plugin.templates && plugin.id && plugin.active) {
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var templatesPath = path.join(__dirname, '../node_modules', plugin.id, plugin.templates);
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utils.walk(templatesPath, function(err, pluginTemplates) {
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pluginTemplates.forEach(function(pluginTemplate) {
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templates["/" + pluginTemplate.replace(templatesPath, '').substring(1)] = pluginTemplate;
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});
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next(err);
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});
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} else {
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next(false);
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}
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}, function(err) {
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callback(err, templates);
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});
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});
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};
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Plugins.getAll = function(callback) {
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var request = require('request');
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request('http://npm.aws.af.cm/api/v1/plugins', function(err, res, body) {
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if (err) {
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return callback(err);
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}
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var plugins = [];
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try {
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plugins = JSON.parse(body);
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} catch(err) {
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winston.error('Error parsing plugins : ' + err.message);
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return callback(null, []);
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}
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var pluginMap = {};
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for(var i=0; i<plugins.length; ++i) {
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plugins[i].id = plugins[i].name;
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plugins[i].installed = false;
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plugins[i].active = false;
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pluginMap[plugins[i].name] = plugins[i];
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}
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Plugins.showInstalled(function(err, installedPlugins) {
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if (err) {
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return callback(err);
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}
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async.each(installedPlugins, function(plugin, next) {
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pluginMap[plugin.id] = pluginMap[plugin.id] || {};
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pluginMap[plugin.id].id = pluginMap[plugin.id].id || plugin.id;
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pluginMap[plugin.id].name = pluginMap[plugin.id].name || plugin.id;
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pluginMap[plugin.id].description = plugin.description;
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pluginMap[plugin.id].url = plugin.url;
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pluginMap[plugin.id].installed = true;
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Plugins.isActive(plugin.id, function(err, active) {
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if (err) {
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return next(err);
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}
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pluginMap[plugin.id].active = active;
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next();
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});
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}, function(err) {
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if (err) {
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return callback(err);
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}
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var pluginArray = [];
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for (var key in pluginMap) {
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if (pluginMap.hasOwnProperty(key)) {
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pluginArray.push(pluginMap[key]);
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}
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}
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pluginArray.sort(function(a, b) {
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if(a.installed && !b.installed) {
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return -1;
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} else if(!a.installed && b.installed) {
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return 1;
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}
|
|
return 0;
|
|
});
|
|
|
|
callback(null, pluginArray);
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
Plugins.isInstalled = function(id, callback) {
|
|
var pluginDir = path.join(__dirname, '../node_modules', id);
|
|
|
|
fs.stat(pluginDir, function(err, stats) {
|
|
callback(null, err ? false : stats.isDirectory());
|
|
});
|
|
};
|
|
|
|
Plugins.showInstalled = function(callback) {
|
|
var npmPluginPath = path.join(__dirname, '../node_modules');
|
|
|
|
async.waterfall([
|
|
async.apply(fs.readdir, npmPluginPath),
|
|
|
|
function(dirs, next) {
|
|
dirs = dirs.filter(function(dir){
|
|
return dir.substr(0, 14) === 'nodebb-plugin-' || dir.substr(0, 14) === 'nodebb-widget-';
|
|
}).map(function(dir){
|
|
return path.join(npmPluginPath, dir);
|
|
});
|
|
|
|
async.filter(dirs, function(dir, callback){
|
|
fs.stat(dir, function(err, stats){
|
|
if (err) {
|
|
return callback(false);
|
|
}
|
|
|
|
callback(stats.isDirectory());
|
|
});
|
|
}, function(plugins){
|
|
next(null, plugins);
|
|
});
|
|
},
|
|
|
|
function(files, next) {
|
|
var plugins = [];
|
|
|
|
async.each(files, function(file, next) {
|
|
var configPath;
|
|
|
|
async.waterfall([
|
|
function(next) {
|
|
fs.readFile(path.join(file, 'plugin.json'), next);
|
|
},
|
|
function(configJSON, next) {
|
|
try {
|
|
var config = JSON.parse(configJSON);
|
|
} catch (err) {
|
|
winston.warn("Plugin: " + file + " is corrupted or invalid. Please check plugin.json for errors.");
|
|
return next(err, null);
|
|
}
|
|
|
|
Plugins.isActive(config.id, function(err, active) {
|
|
if (err) {
|
|
next(new Error('no-active-state'));
|
|
}
|
|
|
|
delete config.library;
|
|
delete config.hooks;
|
|
config.active = active;
|
|
config.installed = true;
|
|
|
|
next(null, config);
|
|
});
|
|
}
|
|
], function(err, config) {
|
|
if (err) return next(); // Silently fail
|
|
|
|
plugins.push(config);
|
|
next();
|
|
});
|
|
}, function(err) {
|
|
next(null, plugins);
|
|
});
|
|
}
|
|
], function(err, plugins) {
|
|
callback(err, plugins);
|
|
});
|
|
};
|
|
}(exports));
|