import { PluginModel } from '../../models/server/plugin' import { logger } from '../../helpers/logger' import { basename, join } from 'path' import { CONFIG } from '../../initializers/config' import { isLibraryCodeValid, isPackageJSONValid } from '../../helpers/custom-validators/plugins' import { ClientScript, PluginPackageJson, PluginTranslationPaths as PackagePluginTranslations } from '../../../shared/models/plugins/plugin-package-json.model' import { createReadStream, createWriteStream } from 'fs' import { PLUGIN_GLOBAL_CSS_PATH } from '../../initializers/constants' import { PluginType } from '../../../shared/models/plugins/plugin.type' import { installNpmPlugin, installNpmPluginFromDisk, removeNpmPlugin } from './yarn' import { outputFile, readJSON } from 'fs-extra' import { ServerHook, ServerHookName } from '../../../shared/models/plugins/server-hook.model' import { getHookType, internalRunHook } from '../../../shared/core-utils/plugins/hooks' import { RegisterServerOptions } from '../../typings/plugins/register-server-option.model' import { PluginLibrary } from '../../typings/plugins' import { ClientHtml } from '../client-html' import { PluginTranslation } from '../../../shared/models/plugins/plugin-translation.model' import { RegisterHelpersStore } from './register-helpers-store' import { RegisterServerHookOptions } from '@shared/models/plugins/register-server-hook.model' export interface RegisteredPlugin { npmName: string name: string version: string description: string peertubeEngine: string type: PluginType path: string staticDirs: { [name: string]: string } clientScripts: { [name: string]: ClientScript } css: string[] // Only if this is a plugin unregister?: Function } export interface HookInformationValue { npmName: string pluginName: string handler: Function priority: number } type PluginLocalesTranslations = { [locale: string]: PluginTranslation } export class PluginManager implements ServerHook { private static instance: PluginManager private registeredPlugins: { [name: string]: RegisteredPlugin } = {} private hooks: { [name: string]: HookInformationValue[] } = {} private translations: PluginLocalesTranslations = {} private registerHelpersStore: { [npmName: string]: RegisterHelpersStore } = {} private constructor () { } // ###################### Getters ###################### isRegistered (npmName: string) { return !!this.getRegisteredPluginOrTheme(npmName) } getRegisteredPluginOrTheme (npmName: string) { return this.registeredPlugins[npmName] } getRegisteredPlugin (name: string) { const npmName = PluginModel.buildNpmName(name, PluginType.PLUGIN) const registered = this.getRegisteredPluginOrTheme(npmName) if (!registered || registered.type !== PluginType.PLUGIN) return undefined return registered } getRegisteredTheme (name: string) { const npmName = PluginModel.buildNpmName(name, PluginType.THEME) const registered = this.getRegisteredPluginOrTheme(npmName) if (!registered || registered.type !== PluginType.THEME) return undefined return registered } getRegisteredPlugins () { return this.getRegisteredPluginsOrThemes(PluginType.PLUGIN) } getRegisteredThemes () { return this.getRegisteredPluginsOrThemes(PluginType.THEME) } getRegisteredSettings (npmName: string) { const store = this.registerHelpersStore[npmName] if (store) return store.getSettings() return [] } getRouter (npmName: string) { const store = this.registerHelpersStore[npmName] if (!store) return null return store.getRouter() } getTranslations (locale: string) { return this.translations[locale] || {} } // ###################### Hooks ###################### async runHook (hookName: ServerHookName, result?: T, params?: any): Promise { if (!this.hooks[hookName]) return Promise.resolve(result) const hookType = getHookType(hookName) for (const hook of this.hooks[hookName]) { logger.debug('Running hook %s of plugin %s.', hookName, hook.npmName) result = await internalRunHook(hook.handler, hookType, result, params, err => { logger.error('Cannot run hook %s of plugin %s.', hookName, hook.pluginName, { err }) }) } return result } // ###################### Registration ###################### async registerPluginsAndThemes () { await this.resetCSSGlobalFile() const plugins = await PluginModel.listEnabledPluginsAndThemes() for (const plugin of plugins) { try { await this.registerPluginOrTheme(plugin) } catch (err) { // Try to unregister the plugin try { await this.unregister(PluginModel.buildNpmName(plugin.name, plugin.type)) } catch { // we don't care if we cannot unregister it } logger.error('Cannot register plugin %s, skipping.', plugin.name, { err }) } } this.sortHooksByPriority() } // Don't need the plugin type since themes cannot register server code async unregister (npmName: string) { logger.info('Unregister plugin %s.', npmName) const plugin = this.getRegisteredPluginOrTheme(npmName) if (!plugin) { throw new Error(`Unknown plugin ${npmName} to unregister`) } delete this.registeredPlugins[plugin.npmName] this.deleteTranslations(plugin.npmName) if (plugin.type === PluginType.PLUGIN) { await plugin.unregister() // Remove hooks of this plugin for (const key of Object.keys(this.hooks)) { this.hooks[key] = this.hooks[key].filter(h => h.npmName !== npmName) } const store = this.registerHelpersStore[plugin.npmName] store.reinitVideoConstants(plugin.npmName) delete this.registerHelpersStore[plugin.npmName] logger.info('Regenerating registered plugin CSS to global file.') await this.regeneratePluginGlobalCSS() } } // ###################### Installation ###################### async install (toInstall: string, version?: string, fromDisk = false) { let plugin: PluginModel let npmName: string logger.info('Installing plugin %s.', toInstall) try { fromDisk ? await installNpmPluginFromDisk(toInstall) : await installNpmPlugin(toInstall, version) npmName = fromDisk ? basename(toInstall) : toInstall const pluginType = PluginModel.getTypeFromNpmName(npmName) const pluginName = PluginModel.normalizePluginName(npmName) const packageJSON = await this.getPackageJSON(pluginName, pluginType) this.sanitizeAndCheckPackageJSONOrThrow(packageJSON, pluginType); [ plugin ] = await PluginModel.upsert({ name: pluginName, description: packageJSON.description, homepage: packageJSON.homepage, type: pluginType, version: packageJSON.version, enabled: true, uninstalled: false, peertubeEngine: packageJSON.engine.peertube }, { returning: true }) } catch (err) { logger.error('Cannot install plugin %s, removing it...', toInstall, { err }) try { await removeNpmPlugin(npmName) } catch (err) { logger.error('Cannot remove plugin %s after failed installation.', toInstall, { err }) } throw err } logger.info('Successful installation of plugin %s.', toInstall) await this.registerPluginOrTheme(plugin) return plugin } async update (toUpdate: string, version?: string, fromDisk = false) { const npmName = fromDisk ? basename(toUpdate) : toUpdate logger.info('Updating plugin %s.', npmName) // Unregister old hooks await this.unregister(npmName) return this.install(toUpdate, version, fromDisk) } async uninstall (npmName: string) { logger.info('Uninstalling plugin %s.', npmName) try { await this.unregister(npmName) } catch (err) { logger.warn('Cannot unregister plugin %s.', npmName, { err }) } const plugin = await PluginModel.loadByNpmName(npmName) if (!plugin || plugin.uninstalled === true) { logger.error('Cannot uninstall plugin %s: it does not exist or is already uninstalled.', npmName) return } plugin.enabled = false plugin.uninstalled = true await plugin.save() await removeNpmPlugin(npmName) logger.info('Plugin %s uninstalled.', npmName) } // ###################### Private register ###################### private async registerPluginOrTheme (plugin: PluginModel) { const npmName = PluginModel.buildNpmName(plugin.name, plugin.type) logger.info('Registering plugin or theme %s.', npmName) const packageJSON = await this.getPackageJSON(plugin.name, plugin.type) const pluginPath = this.getPluginPath(plugin.name, plugin.type) this.sanitizeAndCheckPackageJSONOrThrow(packageJSON, plugin.type) let library: PluginLibrary if (plugin.type === PluginType.PLUGIN) { library = await this.registerPlugin(plugin, pluginPath, packageJSON) } const clientScripts: { [id: string]: ClientScript } = {} for (const c of packageJSON.clientScripts) { clientScripts[c.script] = c } this.registeredPlugins[npmName] = { npmName, name: plugin.name, type: plugin.type, version: plugin.version, description: plugin.description, peertubeEngine: plugin.peertubeEngine, path: pluginPath, staticDirs: packageJSON.staticDirs, clientScripts, css: packageJSON.css, unregister: library ? library.unregister : undefined } await this.addTranslations(plugin, npmName, packageJSON.translations) } private async registerPlugin (plugin: PluginModel, pluginPath: string, packageJSON: PluginPackageJson) { const npmName = PluginModel.buildNpmName(plugin.name, plugin.type) // Delete cache if needed const modulePath = join(pluginPath, packageJSON.library) delete require.cache[modulePath] const library: PluginLibrary = require(modulePath) if (!isLibraryCodeValid(library)) { throw new Error('Library code is not valid (miss register or unregister function)') } const registerHelpers = this.getRegisterHelpers(npmName, plugin) library.register(registerHelpers) .catch(err => logger.error('Cannot register plugin %s.', npmName, { err })) logger.info('Add plugin %s CSS to global file.', npmName) await this.addCSSToGlobalFile(pluginPath, packageJSON.css) return library } // ###################### Translations ###################### private async addTranslations (plugin: PluginModel, npmName: string, translationPaths: PackagePluginTranslations) { for (const locale of Object.keys(translationPaths)) { const path = translationPaths[locale] const json = await readJSON(join(this.getPluginPath(plugin.name, plugin.type), path)) if (!this.translations[locale]) this.translations[locale] = {} this.translations[locale][npmName] = json logger.info('Added locale %s of plugin %s.', locale, npmName) } } private deleteTranslations (npmName: string) { for (const locale of Object.keys(this.translations)) { delete this.translations[locale][npmName] logger.info('Deleted locale %s of plugin %s.', locale, npmName) } } // ###################### CSS ###################### private resetCSSGlobalFile () { ClientHtml.invalidCache() return outputFile(PLUGIN_GLOBAL_CSS_PATH, '') } private async addCSSToGlobalFile (pluginPath: string, cssRelativePaths: string[]) { for (const cssPath of cssRelativePaths) { await this.concatFiles(join(pluginPath, cssPath), PLUGIN_GLOBAL_CSS_PATH) } ClientHtml.invalidCache() } private concatFiles (input: string, output: string) { return new Promise((res, rej) => { const inputStream = createReadStream(input) const outputStream = createWriteStream(output, { flags: 'a' }) inputStream.pipe(outputStream) inputStream.on('end', () => res()) inputStream.on('error', err => rej(err)) }) } private async regeneratePluginGlobalCSS () { await this.resetCSSGlobalFile() for (const plugin of this.getRegisteredPlugins()) { await this.addCSSToGlobalFile(plugin.path, plugin.css) } } // ###################### Utils ###################### private sortHooksByPriority () { for (const hookName of Object.keys(this.hooks)) { this.hooks[hookName].sort((a, b) => { return b.priority - a.priority }) } } private getPackageJSON (pluginName: string, pluginType: PluginType) { const pluginPath = join(this.getPluginPath(pluginName, pluginType), 'package.json') return readJSON(pluginPath) as Promise } private getPluginPath (pluginName: string, pluginType: PluginType) { const npmName = PluginModel.buildNpmName(pluginName, pluginType) return join(CONFIG.STORAGE.PLUGINS_DIR, 'node_modules', npmName) } // ###################### Private getters ###################### private getRegisteredPluginsOrThemes (type: PluginType) { const plugins: RegisteredPlugin[] = [] for (const npmName of Object.keys(this.registeredPlugins)) { const plugin = this.registeredPlugins[npmName] if (plugin.type !== type) continue plugins.push(plugin) } return plugins } // ###################### Generate register helpers ###################### private getRegisterHelpers (npmName: string, plugin: PluginModel): RegisterServerOptions { const onHookAdded = (options: RegisterServerHookOptions) => { if (!this.hooks[options.target]) this.hooks[options.target] = [] this.hooks[options.target].push({ npmName: npmName, pluginName: plugin.name, handler: options.handler, priority: options.priority || 0 }) } const registerHelpersStore = new RegisterHelpersStore(npmName, plugin, onHookAdded.bind(this)) this.registerHelpersStore[npmName] = registerHelpersStore return registerHelpersStore.buildRegisterHelpers() } private sanitizeAndCheckPackageJSONOrThrow (packageJSON: PluginPackageJson, pluginType: PluginType) { if (!packageJSON.staticDirs) packageJSON.staticDirs = {} if (!packageJSON.css) packageJSON.css = [] if (!packageJSON.clientScripts) packageJSON.clientScripts = [] if (!packageJSON.translations) packageJSON.translations = {} const { result: packageJSONValid, badFields } = isPackageJSONValid(packageJSON, pluginType) if (!packageJSONValid) { const formattedFields = badFields.map(f => `"${f}"`) .join(', ') throw new Error(`PackageJSON is invalid (invalid fields: ${formattedFields}).`) } } static get Instance () { return this.instance || (this.instance = new this()) } }