PeerTube/server/lib/plugins/plugin-manager.ts

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import express from 'express'
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import { createReadStream, createWriteStream } from 'fs'
import { ensureDir, outputFile, readJSON } from 'fs-extra'
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import { basename, join } from 'path'
import { decachePlugin } from '@server/helpers/decache'
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import { MOAuthTokenUser, MUser } from '@server/types/models'
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import { getCompleteLocale } from '@shared/core-utils'
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import {
ClientScriptJSON,
PluginPackageJSON,
PluginTranslation,
PluginTranslationPathsJSON,
RegisterServerHookOptions
} from '@shared/models'
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import { getHookType, internalRunHook } from '../../../shared/core-utils/plugins/hooks'
import { PluginType } from '../../../shared/models/plugins/plugin.type'
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import { ServerHook, ServerHookName } from '../../../shared/models/plugins/server/server-hook.model'
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import { isLibraryCodeValid, isPackageJSONValid } from '../../helpers/custom-validators/plugins'
import { logger } from '../../helpers/logger'
import { CONFIG } from '../../initializers/config'
import { PLUGIN_GLOBAL_CSS_PATH } from '../../initializers/constants'
import { PluginModel } from '../../models/server/plugin'
import { PluginLibrary, RegisterServerAuthExternalOptions, RegisterServerAuthPassOptions, RegisterServerOptions } from '../../types/plugins'
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import { ClientHtml } from '../client-html'
import { RegisterHelpers } from './register-helpers'
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import { installNpmPlugin, installNpmPluginFromDisk, removeNpmPlugin } from './yarn'
export interface RegisteredPlugin {
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npmName: string
name: string
version: string
description: string
peertubeEngine: string
type: PluginType
path: string
staticDirs: { [name: string]: string }
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clientScripts: { [name: string]: ClientScriptJSON }
css: string[]
// Only if this is a plugin
registerHelpers?: RegisterHelpers
unregister?: Function
}
export interface HookInformationValue {
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npmName: string
pluginName: string
handler: Function
priority: number
}
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type PluginLocalesTranslations = {
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[locale: string]: PluginTranslation
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}
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export class PluginManager implements ServerHook {
private static instance: PluginManager
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private registeredPlugins: { [name: string]: RegisteredPlugin } = {}
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private hooks: { [name: string]: HookInformationValue[] } = {}
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private translations: PluginLocalesTranslations = {}
private constructor () {
}
// ###################### Getters ######################
isRegistered (npmName: string) {
return !!this.getRegisteredPluginOrTheme(npmName)
}
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getRegisteredPluginOrTheme (npmName: string) {
return this.registeredPlugins[npmName]
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}
getRegisteredPluginByShortName (name: string) {
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const npmName = PluginModel.buildNpmName(name, PluginType.PLUGIN)
const registered = this.getRegisteredPluginOrTheme(npmName)
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if (!registered || registered.type !== PluginType.PLUGIN) return undefined
return registered
}
getRegisteredThemeByShortName (name: string) {
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const npmName = PluginModel.buildNpmName(name, PluginType.THEME)
const registered = this.getRegisteredPluginOrTheme(npmName)
if (!registered || registered.type !== PluginType.THEME) return undefined
return registered
}
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getRegisteredPlugins () {
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return this.getRegisteredPluginsOrThemes(PluginType.PLUGIN)
}
getRegisteredThemes () {
return this.getRegisteredPluginsOrThemes(PluginType.THEME)
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}
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getIdAndPassAuths () {
return this.getRegisteredPlugins()
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.map(p => ({
npmName: p.npmName,
name: p.name,
version: p.version,
idAndPassAuths: p.registerHelpers.getIdAndPassAuths()
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}))
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.filter(v => v.idAndPassAuths.length !== 0)
}
getExternalAuths () {
return this.getRegisteredPlugins()
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.map(p => ({
npmName: p.npmName,
name: p.name,
version: p.version,
externalAuths: p.registerHelpers.getExternalAuths()
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}))
.filter(v => v.externalAuths.length !== 0)
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}
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getRegisteredSettings (npmName: string) {
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const result = this.getRegisteredPluginOrTheme(npmName)
if (!result || result.type !== PluginType.PLUGIN) return []
return result.registerHelpers.getSettings()
}
getRouter (npmName: string) {
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const result = this.getRegisteredPluginOrTheme(npmName)
if (!result || result.type !== PluginType.PLUGIN) return null
return result.registerHelpers.getRouter()
}
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getTranslations (locale: string) {
return this.translations[locale] || {}
}
async isTokenValid (token: MOAuthTokenUser, type: 'access' | 'refresh') {
const auth = this.getAuth(token.User.pluginAuth, token.authName)
if (!auth) return true
if (auth.hookTokenValidity) {
try {
const { valid } = await auth.hookTokenValidity({ token, type })
if (valid === false) {
logger.info('Rejecting %s token validity from auth %s of plugin %s', type, token.authName, token.User.pluginAuth)
}
return valid
} catch (err) {
logger.warn('Cannot run check token validity from auth %s of plugin %s.', token.authName, token.User.pluginAuth, { err })
return true
}
}
return true
}
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// ###################### External events ######################
async onLogout (npmName: string, authName: string, user: MUser, req: express.Request) {
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const auth = this.getAuth(npmName, authName)
if (auth?.onLogout) {
logger.info('Running onLogout function from auth %s of plugin %s', authName, npmName)
try {
// Force await, in case or onLogout returns a promise
const result = await auth.onLogout(user, req)
return typeof result === 'string'
? result
: undefined
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} catch (err) {
logger.warn('Cannot run onLogout function from auth %s of plugin %s.', authName, npmName, { err })
}
}
return undefined
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}
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async onSettingsChanged (name: string, settings: any) {
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const registered = this.getRegisteredPluginByShortName(name)
if (!registered) {
logger.error('Cannot find plugin %s to call on settings changed.', name)
}
for (const cb of registered.registerHelpers.getOnSettingsChangedCallbacks()) {
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try {
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await cb(settings)
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} catch (err) {
logger.error('Cannot run on settings changed callback for %s.', registered.npmName, { err })
}
}
}
// ###################### Hooks ######################
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async runHook<T> (hookName: ServerHookName, result?: T, params?: any): Promise<T> {
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if (!this.hooks[hookName]) return Promise.resolve(result)
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const hookType = getHookType(hookName)
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for (const hook of this.hooks[hookName]) {
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logger.debug('Running hook %s of plugin %s.', hookName, hook.npmName)
result = await internalRunHook(hook.handler, hookType, result, params, err => {
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logger.error('Cannot run hook %s of plugin %s.', hookName, hook.pluginName, { err })
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})
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}
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) {
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// 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()
}
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// 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) {
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throw new Error(`Unknown plugin ${npmName} to unregister`)
}
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delete this.registeredPlugins[plugin.npmName]
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this.deleteTranslations(plugin.npmName)
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if (plugin.type === PluginType.PLUGIN) {
await plugin.unregister()
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// Remove hooks of this plugin
for (const key of Object.keys(this.hooks)) {
this.hooks[key] = this.hooks[key].filter(h => h.npmName !== npmName)
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}
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const store = plugin.registerHelpers
store.reinitVideoConstants(plugin.npmName)
store.reinitTranscodingProfilesAndEncoders(plugin.npmName)
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logger.info('Regenerating registered plugin CSS to global file.')
await this.regeneratePluginGlobalCSS()
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}
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ClientHtml.invalidCache()
}
// ###################### Installation ######################
async install (toInstall: string, version?: string, fromDisk = false) {
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let plugin: PluginModel
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let npmName: string
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logger.info('Installing plugin %s.', toInstall)
try {
fromDisk
? await installNpmPluginFromDisk(toInstall)
: await installNpmPlugin(toInstall, version)
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npmName = fromDisk ? basename(toInstall) : toInstall
const pluginType = PluginModel.getTypeFromNpmName(npmName)
const pluginName = PluginModel.normalizePluginName(npmName)
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const packageJSON = await this.getPackageJSON(pluginName, pluginType)
this.sanitizeAndCheckPackageJSONOrThrow(packageJSON, pluginType);
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[ plugin ] = await PluginModel.upsert({
name: pluginName,
description: packageJSON.description,
homepage: packageJSON.homepage,
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type: pluginType,
version: packageJSON.version,
enabled: true,
uninstalled: false,
peertubeEngine: packageJSON.engine.peertube
}, { returning: true })
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logger.info('Successful installation of plugin %s.', toInstall)
await this.registerPluginOrTheme(plugin)
} catch (rootErr) {
logger.error('Cannot install plugin %s, removing it...', toInstall, { err: rootErr })
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try {
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await this.uninstall(npmName)
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} catch (err) {
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logger.error('Cannot uninstall plugin %s after failed installation.', toInstall, { err })
try {
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await removeNpmPlugin(npmName)
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} catch (err) {
logger.error('Cannot remove plugin %s after failed installation.', toInstall, { err })
}
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}
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throw rootErr
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}
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return plugin
}
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async update (toUpdate: string, fromDisk = false) {
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const npmName = fromDisk ? basename(toUpdate) : toUpdate
logger.info('Updating plugin %s.', npmName)
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// Use the latest version from DB, to not upgrade to a version that does not support our PeerTube version
let version: string
if (!fromDisk) {
const plugin = await PluginModel.loadByNpmName(toUpdate)
version = plugin.latestVersion
}
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// Unregister old hooks
await this.unregister(npmName)
return this.install(toUpdate, version, fromDisk)
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}
async uninstall (npmName: string) {
logger.info('Uninstalling plugin %s.', npmName)
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try {
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await this.unregister(npmName)
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} catch (err) {
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logger.warn('Cannot unregister plugin %s.', npmName, { err })
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}
const plugin = await PluginModel.loadByNpmName(npmName)
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if (!plugin || plugin.uninstalled === true) {
logger.error('Cannot uninstall plugin %s: it does not exist or is already uninstalled.', npmName)
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return
}
plugin.enabled = false
plugin.uninstalled = true
await plugin.save()
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await removeNpmPlugin(npmName)
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logger.info('Plugin %s uninstalled.', npmName)
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}
// ###################### Private register ######################
private async registerPluginOrTheme (plugin: PluginModel) {
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const npmName = PluginModel.buildNpmName(plugin.name, plugin.type)
logger.info('Registering plugin or theme %s.', npmName)
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const packageJSON = await this.getPackageJSON(plugin.name, plugin.type)
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const pluginPath = this.getPluginPath(plugin.name, plugin.type)
this.sanitizeAndCheckPackageJSONOrThrow(packageJSON, plugin.type)
let library: PluginLibrary
let registerHelpers: RegisterHelpers
if (plugin.type === PluginType.PLUGIN) {
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const result = await this.registerPlugin(plugin, pluginPath, packageJSON)
library = result.library
registerHelpers = result.registerStore
}
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const clientScripts: { [id: string]: ClientScriptJSON } = {}
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for (const c of packageJSON.clientScripts) {
clientScripts[c.script] = c
}
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this.registeredPlugins[npmName] = {
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npmName,
name: plugin.name,
type: plugin.type,
version: plugin.version,
description: plugin.description,
peertubeEngine: plugin.peertubeEngine,
path: pluginPath,
staticDirs: packageJSON.staticDirs,
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clientScripts,
css: packageJSON.css,
registerHelpers: registerHelpers || undefined,
unregister: library ? library.unregister : undefined
}
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await this.addTranslations(plugin, npmName, packageJSON.translations)
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ClientHtml.invalidCache()
}
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private async registerPlugin (plugin: PluginModel, pluginPath: string, packageJSON: PluginPackageJSON) {
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const npmName = PluginModel.buildNpmName(plugin.name, plugin.type)
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// Delete cache if needed
const modulePath = join(pluginPath, packageJSON.library)
decachePlugin(pluginPath, modulePath)
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const library: PluginLibrary = require(modulePath)
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if (!isLibraryCodeValid(library)) {
throw new Error('Library code is not valid (miss register or unregister function)')
}
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const { registerOptions, registerStore } = this.getRegisterHelpers(npmName, plugin)
await ensureDir(registerOptions.peertubeHelpers.plugin.getDataDirectoryPath())
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await library.register(registerOptions)
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logger.info('Add plugin %s CSS to global file.', npmName)
await this.addCSSToGlobalFile(pluginPath, packageJSON.css)
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return { library, registerStore }
}
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// ###################### Translations ######################
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private async addTranslations (plugin: PluginModel, npmName: string, translationPaths: PluginTranslationPathsJSON) {
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for (const locale of Object.keys(translationPaths)) {
const path = translationPaths[locale]
const json = await readJSON(join(this.getPluginPath(plugin.name, plugin.type), path))
const completeLocale = getCompleteLocale(locale)
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if (!this.translations[completeLocale]) this.translations[completeLocale] = {}
this.translations[completeLocale][npmName] = json
logger.info('Added locale %s of plugin %s.', completeLocale, npmName)
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}
}
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 ######################
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private resetCSSGlobalFile () {
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)
}
}
private concatFiles (input: string, output: string) {
return new Promise<void>((res, rej) => {
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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()
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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
})
}
}
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private getPackageJSON (pluginName: string, pluginType: PluginType) {
const pluginPath = join(this.getPluginPath(pluginName, pluginType), 'package.json')
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return readJSON(pluginPath) as Promise<PluginPackageJSON>
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}
private getPluginPath (pluginName: string, pluginType: PluginType) {
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const npmName = PluginModel.buildNpmName(pluginName, pluginType)
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return join(CONFIG.STORAGE.PLUGINS_DIR, 'node_modules', npmName)
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}
private getAuth (npmName: string, authName: string) {
const plugin = this.getRegisteredPluginOrTheme(npmName)
if (!plugin || plugin.type !== PluginType.PLUGIN) return null
let auths: (RegisterServerAuthPassOptions | RegisterServerAuthExternalOptions)[] = plugin.registerHelpers.getIdAndPassAuths()
auths = auths.concat(plugin.registerHelpers.getExternalAuths())
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return auths.find(a => a.authName === authName)
}
// ###################### Private getters ######################
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private getRegisteredPluginsOrThemes (type: PluginType) {
const plugins: RegisteredPlugin[] = []
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for (const npmName of Object.keys(this.registeredPlugins)) {
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const plugin = this.registeredPlugins[npmName]
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if (plugin.type !== type) continue
plugins.push(plugin)
}
return plugins
}
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// ###################### Generate register helpers ######################
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private getRegisterHelpers (
npmName: string,
plugin: PluginModel
): { registerStore: RegisterHelpers, registerOptions: RegisterServerOptions } {
const onHookAdded = (options: RegisterServerHookOptions) => {
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if (!this.hooks[options.target]) this.hooks[options.target] = []
this.hooks[options.target].push({
npmName: npmName,
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pluginName: plugin.name,
handler: options.handler,
priority: options.priority || 0
})
}
const registerHelpers = new RegisterHelpers(npmName, plugin, onHookAdded.bind(this))
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return {
registerStore: registerHelpers,
registerOptions: registerHelpers.buildRegisterHelpers()
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}
}
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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}"`)
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.join(', ')
throw new Error(`PackageJSON is invalid (invalid fields: ${formattedFields}).`)
}
}
static get Instance () {
return this.instance || (this.instance = new this())
}
}