server/lib/plugins/plugin-manager.ts

   1 import express from 'express'
   2 import { createReadStream, createWriteStream } from 'fs'
   3 import { ensureDir, outputFile, readJSON } from 'fs-extra'
   4 import { Server } from 'http'
   5 import { basename, join } from 'path'
   6 import { decachePlugin } from '@server/helpers/decache'
   7 import { ApplicationModel } from '@server/models/application/application'
   8 import { MOAuthTokenUser, MUser } from '@server/types/models'
   9 import { getCompleteLocale } from '@shared/core-utils'
  10 import {
  11   ClientScriptJSON,
  12   PluginPackageJSON,
  13   PluginTranslation,
  14   PluginTranslationPathsJSON,
  15   RegisterServerHookOptions
  16 } from '@shared/models'
  17 import { getHookType, internalRunHook } from '../../../shared/core-utils/plugins/hooks'
  18 import { PluginType } from '../../../shared/models/plugins/plugin.type'
  19 import { ServerHook, ServerHookName } from '../../../shared/models/plugins/server/server-hook.model'
  20 import { isLibraryCodeValid, isPackageJSONValid } from '../../helpers/custom-validators/plugins'
  21 import { logger } from '../../helpers/logger'
  22 import { CONFIG } from '../../initializers/config'
  23 import { PLUGIN_GLOBAL_CSS_PATH } from '../../initializers/constants'
  24 import { PluginModel } from '../../models/server/plugin'
  25 import { PluginLibrary, RegisterServerAuthExternalOptions, RegisterServerAuthPassOptions, RegisterServerOptions } from '../../types/plugins'
  26 import { ClientHtml } from '../client-html'
  27 import { RegisterHelpers } from './register-helpers'
  28 import { installNpmPlugin, installNpmPluginFromDisk, rebuildNativePlugins, removeNpmPlugin } from './yarn'
  29
  30 export interface RegisteredPlugin {
  31   npmName: string
  32   name: string
  33   version: string
  34   description: string
  35   peertubeEngine: string
  36
  37   type: PluginType
  38
  39   path: string
  40
  41   staticDirs: { [name: string]: string }
  42   clientScripts: { [name: string]: ClientScriptJSON }
  43
  44   css: string[]
  45
  46   // Only if this is a plugin
  47   registerHelpers?: RegisterHelpers
  48   unregister?: Function
  49 }
  50
  51 export interface HookInformationValue {
  52   npmName: string
  53   pluginName: string
  54   handler: Function
  55   priority: number
  56 }
  57
  58 type PluginLocalesTranslations = {
  59   [locale: string]: PluginTranslation
  60 }
  61
  62 export class PluginManager implements ServerHook {
  63
  64   private static instance: PluginManager
  65
  66   private registeredPlugins: { [name: string]: RegisteredPlugin } = {}
  67
  68   private hooks: { [name: string]: HookInformationValue[] } = {}
  69   private translations: PluginLocalesTranslations = {}
  70
  71   private server: Server
  72
  73   private constructor () {
  74   }
  75
  76   init (server: Server) {
  77     this.server = server
  78   }
  79
  80   registerWebSocketRouter () {
  81     this.server.on('upgrade', (request, socket, head) => {
  82       // Check if it's a plugin websocket connection
  83       // No need to destroy the stream when we abort the request
  84       // Other handlers in PeerTube will catch this upgrade event too (socket.io, tracker etc)
  85
  86       const url = request.url
  87
  88       const matched = url.match(`/plugins/([^/]+)/([^/]+/)?ws(/.*)`)
  89       if (!matched) return
  90
  91       const npmName = PluginModel.buildNpmName(matched[1], PluginType.PLUGIN)
  92       const subRoute = matched[3]
  93
  94       const result = this.getRegisteredPluginOrTheme(npmName)
  95       if (!result) return
  96
  97       const routes = result.registerHelpers.getWebSocketRoutes()
  98
  99       const wss = routes.find(r => r.route.startsWith(subRoute))
 100       if (!wss) return
 101
 102       try {
 103         wss.handler(request, socket, head)
 104       } catch (err) {
 105         logger.error('Exception in plugin handler ' + npmName, { err })
 106       }
 107     })
 108   }
 109
 110   // ###################### Getters ######################
 111
 112   isRegistered (npmName: string) {
 113     return !!this.getRegisteredPluginOrTheme(npmName)
 114   }
 115
 116   getRegisteredPluginOrTheme (npmName: string) {
 117     return this.registeredPlugins[npmName]
 118   }
 119
 120   getRegisteredPluginByShortName (name: string) {
 121     const npmName = PluginModel.buildNpmName(name, PluginType.PLUGIN)
 122     const registered = this.getRegisteredPluginOrTheme(npmName)
 123
 124     if (!registered || registered.type !== PluginType.PLUGIN) return undefined
 125
 126     return registered
 127   }
 128
 129   getRegisteredThemeByShortName (name: string) {
 130     const npmName = PluginModel.buildNpmName(name, PluginType.THEME)
 131     const registered = this.getRegisteredPluginOrTheme(npmName)
 132
 133     if (!registered || registered.type !== PluginType.THEME) return undefined
 134
 135     return registered
 136   }
 137
 138   getRegisteredPlugins () {
 139     return this.getRegisteredPluginsOrThemes(PluginType.PLUGIN)
 140   }
 141
 142   getRegisteredThemes () {
 143     return this.getRegisteredPluginsOrThemes(PluginType.THEME)
 144   }
 145
 146   getIdAndPassAuths () {
 147     return this.getRegisteredPlugins()
 148       .map(p => ({
 149         npmName: p.npmName,
 150         name: p.name,
 151         version: p.version,
 152         idAndPassAuths: p.registerHelpers.getIdAndPassAuths()
 153       }))
 154       .filter(v => v.idAndPassAuths.length !== 0)
 155   }
 156
 157   getExternalAuths () {
 158     return this.getRegisteredPlugins()
 159       .map(p => ({
 160         npmName: p.npmName,
 161         name: p.name,
 162         version: p.version,
 163         externalAuths: p.registerHelpers.getExternalAuths()
 164       }))
 165       .filter(v => v.externalAuths.length !== 0)
 166   }
 167
 168   getRegisteredSettings (npmName: string) {
 169     const result = this.getRegisteredPluginOrTheme(npmName)
 170     if (!result || result.type !== PluginType.PLUGIN) return []
 171
 172     return result.registerHelpers.getSettings()
 173   }
 174
 175   getRouter (npmName: string) {
 176     const result = this.getRegisteredPluginOrTheme(npmName)
 177     if (!result || result.type !== PluginType.PLUGIN) return null
 178
 179     return result.registerHelpers.getRouter()
 180   }
 181
 182   getTranslations (locale: string) {
 183     return this.translations[locale] || {}
 184   }
 185
 186   async isTokenValid (token: MOAuthTokenUser, type: 'access' | 'refresh') {
 187     const auth = this.getAuth(token.User.pluginAuth, token.authName)
 188     if (!auth) return true
 189
 190     if (auth.hookTokenValidity) {
 191       try {
 192         const { valid } = await auth.hookTokenValidity({ token, type })
 193
 194         if (valid === false) {
 195           logger.info('Rejecting %s token validity from auth %s of plugin %s', type, token.authName, token.User.pluginAuth)
 196         }
 197
 198         return valid
 199       } catch (err) {
 200         logger.warn('Cannot run check token validity from auth %s of plugin %s.', token.authName, token.User.pluginAuth, { err })
 201         return true
 202       }
 203     }
 204
 205     return true
 206   }
 207
 208   // ###################### External events ######################
 209
 210   async onLogout (npmName: string, authName: string, user: MUser, req: express.Request) {
 211     const auth = this.getAuth(npmName, authName)
 212
 213     if (auth?.onLogout) {
 214       logger.info('Running onLogout function from auth %s of plugin %s', authName, npmName)
 215
 216       try {
 217         // Force await, in case or onLogout returns a promise
 218         const result = await auth.onLogout(user, req)
 219
 220         return typeof result === 'string'
 221           ? result
 222           : undefined
 223       } catch (err) {
 224         logger.warn('Cannot run onLogout function from auth %s of plugin %s.', authName, npmName, { err })
 225       }
 226     }
 227
 228     return undefined
 229   }
 230
 231   async onSettingsChanged (name: string, settings: any) {
 232     const registered = this.getRegisteredPluginByShortName(name)
 233     if (!registered) {
 234       logger.error('Cannot find plugin %s to call on settings changed.', name)
 235     }
 236
 237     for (const cb of registered.registerHelpers.getOnSettingsChangedCallbacks()) {
 238       try {
 239         await cb(settings)
 240       } catch (err) {
 241         logger.error('Cannot run on settings changed callback for %s.', registered.npmName, { err })
 242       }
 243     }
 244   }
 245
 246   // ###################### Hooks ######################
 247
 248   async runHook<T> (hookName: ServerHookName, result?: T, params?: any): Promise<T> {
 249     if (!this.hooks[hookName]) return Promise.resolve(result)
 250
 251     const hookType = getHookType(hookName)
 252
 253     for (const hook of this.hooks[hookName]) {
 254       logger.debug('Running hook %s of plugin %s.', hookName, hook.npmName)
 255
 256       result = await internalRunHook({
 257         handler: hook.handler,
 258         hookType,
 259         result,
 260         params,
 261         onError: err => { logger.error('Cannot run hook %s of plugin %s.', hookName, hook.pluginName, { err }) }
 262       })
 263     }
 264
 265     return result
 266   }
 267
 268   // ###################### Registration ######################
 269
 270   async registerPluginsAndThemes () {
 271     await this.resetCSSGlobalFile()
 272
 273     const plugins = await PluginModel.listEnabledPluginsAndThemes()
 274
 275     for (const plugin of plugins) {
 276       try {
 277         await this.registerPluginOrTheme(plugin)
 278       } catch (err) {
 279         // Try to unregister the plugin
 280         try {
 281           await this.unregister(PluginModel.buildNpmName(plugin.name, plugin.type))
 282         } catch {
 283           // we don't care if we cannot unregister it
 284         }
 285
 286         logger.error('Cannot register plugin %s, skipping.', plugin.name, { err })
 287       }
 288     }
 289
 290     this.sortHooksByPriority()
 291   }
 292
 293   // Don't need the plugin type since themes cannot register server code
 294   async unregister (npmName: string) {
 295     logger.info('Unregister plugin %s.', npmName)
 296
 297     const plugin = this.getRegisteredPluginOrTheme(npmName)
 298
 299     if (!plugin) {
 300       throw new Error(`Unknown plugin ${npmName} to unregister`)
 301     }
 302
 303     delete this.registeredPlugins[plugin.npmName]
 304
 305     this.deleteTranslations(plugin.npmName)
 306
 307     if (plugin.type === PluginType.PLUGIN) {
 308       await plugin.unregister()
 309
 310       // Remove hooks of this plugin
 311       for (const key of Object.keys(this.hooks)) {
 312         this.hooks[key] = this.hooks[key].filter(h => h.npmName !== npmName)
 313       }
 314
 315       const store = plugin.registerHelpers
 316       store.reinitVideoConstants(plugin.npmName)
 317       store.reinitTranscodingProfilesAndEncoders(plugin.npmName)
 318
 319       logger.info('Regenerating registered plugin CSS to global file.')
 320       await this.regeneratePluginGlobalCSS()
 321     }
 322
 323     ClientHtml.invalidCache()
 324   }
 325
 326   // ###################### Installation ######################
 327
 328   async install (toInstall: string, version?: string, fromDisk = false) {
 329     let plugin: PluginModel
 330     let npmName: string
 331
 332     logger.info('Installing plugin %s.', toInstall)
 333
 334     try {
 335       fromDisk
 336         ? await installNpmPluginFromDisk(toInstall)
 337         : await installNpmPlugin(toInstall, version)
 338
 339       npmName = fromDisk ? basename(toInstall) : toInstall
 340       const pluginType = PluginModel.getTypeFromNpmName(npmName)
 341       const pluginName = PluginModel.normalizePluginName(npmName)
 342
 343       const packageJSON = await this.getPackageJSON(pluginName, pluginType)
 344
 345       this.sanitizeAndCheckPackageJSONOrThrow(packageJSON, pluginType);
 346
 347       [ plugin ] = await PluginModel.upsert({
 348         name: pluginName,
 349         description: packageJSON.description,
 350         homepage: packageJSON.homepage,
 351         type: pluginType,
 352         version: packageJSON.version,
 353         enabled: true,
 354         uninstalled: false,
 355         peertubeEngine: packageJSON.engine.peertube
 356       }, { returning: true })
 357
 358       logger.info('Successful installation of plugin %s.', toInstall)
 359
 360       await this.registerPluginOrTheme(plugin)
 361     } catch (rootErr) {
 362       logger.error('Cannot install plugin %s, removing it...', toInstall, { err: rootErr })
 363
 364       try {
 365         await this.uninstall(npmName)
 366       } catch (err) {
 367         logger.error('Cannot uninstall plugin %s after failed installation.', toInstall, { err })
 368
 369         try {
 370           await removeNpmPlugin(npmName)
 371         } catch (err) {
 372           logger.error('Cannot remove plugin %s after failed installation.', toInstall, { err })
 373         }
 374       }
 375
 376       throw rootErr
 377     }
 378
 379     return plugin
 380   }
 381
 382   async update (toUpdate: string, fromDisk = false) {
 383     const npmName = fromDisk ? basename(toUpdate) : toUpdate
 384
 385     logger.info('Updating plugin %s.', npmName)
 386
 387     // Use the latest version from DB, to not upgrade to a version that does not support our PeerTube version
 388     let version: string
 389     if (!fromDisk) {
 390       const plugin = await PluginModel.loadByNpmName(toUpdate)
 391       version = plugin.latestVersion
 392     }
 393
 394     // Unregister old hooks
 395     await this.unregister(npmName)
 396
 397     return this.install(toUpdate, version, fromDisk)
 398   }
 399
 400   async uninstall (npmName: string) {
 401     logger.info('Uninstalling plugin %s.', npmName)
 402
 403     try {
 404       await this.unregister(npmName)
 405     } catch (err) {
 406       logger.warn('Cannot unregister plugin %s.', npmName, { err })
 407     }
 408
 409     const plugin = await PluginModel.loadByNpmName(npmName)
 410     if (!plugin || plugin.uninstalled === true) {
 411       logger.error('Cannot uninstall plugin %s: it does not exist or is already uninstalled.', npmName)
 412       return
 413     }
 414
 415     plugin.enabled = false
 416     plugin.uninstalled = true
 417
 418     await plugin.save()
 419
 420     await removeNpmPlugin(npmName)
 421
 422     logger.info('Plugin %s uninstalled.', npmName)
 423   }
 424
 425   async rebuildNativePluginsIfNeeded () {
 426     if (!await ApplicationModel.nodeABIChanged()) return
 427
 428     return rebuildNativePlugins()
 429   }
 430
 431   // ###################### Private register ######################
 432
 433   private async registerPluginOrTheme (plugin: PluginModel) {
 434     const npmName = PluginModel.buildNpmName(plugin.name, plugin.type)
 435
 436     logger.info('Registering plugin or theme %s.', npmName)
 437
 438     const packageJSON = await this.getPackageJSON(plugin.name, plugin.type)
 439     const pluginPath = this.getPluginPath(plugin.name, plugin.type)
 440
 441     this.sanitizeAndCheckPackageJSONOrThrow(packageJSON, plugin.type)
 442
 443     let library: PluginLibrary
 444     let registerHelpers: RegisterHelpers
 445     if (plugin.type === PluginType.PLUGIN) {
 446       const result = await this.registerPlugin(plugin, pluginPath, packageJSON)
 447       library = result.library
 448       registerHelpers = result.registerStore
 449     }
 450
 451     const clientScripts: { [id: string]: ClientScriptJSON } = {}
 452     for (const c of packageJSON.clientScripts) {
 453       clientScripts[c.script] = c
 454     }
 455
 456     this.registeredPlugins[npmName] = {
 457       npmName,
 458       name: plugin.name,
 459       type: plugin.type,
 460       version: plugin.version,
 461       description: plugin.description,
 462       peertubeEngine: plugin.peertubeEngine,
 463       path: pluginPath,
 464       staticDirs: packageJSON.staticDirs,
 465       clientScripts,
 466       css: packageJSON.css,
 467       registerHelpers: registerHelpers || undefined,
 468       unregister: library ? library.unregister : undefined
 469     }
 470
 471     await this.addTranslations(plugin, npmName, packageJSON.translations)
 472
 473     ClientHtml.invalidCache()
 474   }
 475
 476   private async registerPlugin (plugin: PluginModel, pluginPath: string, packageJSON: PluginPackageJSON) {
 477     const npmName = PluginModel.buildNpmName(plugin.name, plugin.type)
 478
 479     // Delete cache if needed
 480     const modulePath = join(pluginPath, packageJSON.library)
 481     decachePlugin(pluginPath, modulePath)
 482     const library: PluginLibrary = require(modulePath)
 483
 484     if (!isLibraryCodeValid(library)) {
 485       throw new Error('Library code is not valid (miss register or unregister function)')
 486     }
 487
 488     const { registerOptions, registerStore } = this.getRegisterHelpers(npmName, plugin)
 489
 490     await ensureDir(registerOptions.peertubeHelpers.plugin.getDataDirectoryPath())
 491
 492     await library.register(registerOptions)
 493
 494     logger.info('Add plugin %s CSS to global file.', npmName)
 495
 496     await this.addCSSToGlobalFile(pluginPath, packageJSON.css)
 497
 498     return { library, registerStore }
 499   }
 500
 501   // ###################### Translations ######################
 502
 503   private async addTranslations (plugin: PluginModel, npmName: string, translationPaths: PluginTranslationPathsJSON) {
 504     for (const locale of Object.keys(translationPaths)) {
 505       const path = translationPaths[locale]
 506       const json = await readJSON(join(this.getPluginPath(plugin.name, plugin.type), path))
 507
 508       const completeLocale = getCompleteLocale(locale)
 509
 510       if (!this.translations[completeLocale]) this.translations[completeLocale] = {}
 511       this.translations[completeLocale][npmName] = json
 512
 513       logger.info('Added locale %s of plugin %s.', completeLocale, npmName)
 514     }
 515   }
 516
 517   private deleteTranslations (npmName: string) {
 518     for (const locale of Object.keys(this.translations)) {
 519       delete this.translations[locale][npmName]
 520
 521       logger.info('Deleted locale %s of plugin %s.', locale, npmName)
 522     }
 523   }
 524
 525   // ###################### CSS ######################
 526
 527   private resetCSSGlobalFile () {
 528     return outputFile(PLUGIN_GLOBAL_CSS_PATH, '')
 529   }
 530
 531   private async addCSSToGlobalFile (pluginPath: string, cssRelativePaths: string[]) {
 532     for (const cssPath of cssRelativePaths) {
 533       await this.concatFiles(join(pluginPath, cssPath), PLUGIN_GLOBAL_CSS_PATH)
 534     }
 535   }
 536
 537   private concatFiles (input: string, output: string) {
 538     return new Promise<void>((res, rej) => {
 539       const inputStream = createReadStream(input)
 540       const outputStream = createWriteStream(output, { flags: 'a' })
 541
 542       inputStream.pipe(outputStream)
 543
 544       inputStream.on('end', () => res())
 545       inputStream.on('error', err => rej(err))
 546     })
 547   }
 548
 549   private async regeneratePluginGlobalCSS () {
 550     await this.resetCSSGlobalFile()
 551
 552     for (const plugin of this.getRegisteredPlugins()) {
 553       await this.addCSSToGlobalFile(plugin.path, plugin.css)
 554     }
 555   }
 556
 557   // ###################### Utils ######################
 558
 559   private sortHooksByPriority () {
 560     for (const hookName of Object.keys(this.hooks)) {
 561       this.hooks[hookName].sort((a, b) => {
 562         return b.priority - a.priority
 563       })
 564     }
 565   }
 566
 567   private getPackageJSON (pluginName: string, pluginType: PluginType) {
 568     const pluginPath = join(this.getPluginPath(pluginName, pluginType), 'package.json')
 569
 570     return readJSON(pluginPath) as Promise<PluginPackageJSON>
 571   }
 572
 573   private getPluginPath (pluginName: string, pluginType: PluginType) {
 574     const npmName = PluginModel.buildNpmName(pluginName, pluginType)
 575
 576     return join(CONFIG.STORAGE.PLUGINS_DIR, 'node_modules', npmName)
 577   }
 578
 579   private getAuth (npmName: string, authName: string) {
 580     const plugin = this.getRegisteredPluginOrTheme(npmName)
 581     if (!plugin || plugin.type !== PluginType.PLUGIN) return null
 582
 583     let auths: (RegisterServerAuthPassOptions | RegisterServerAuthExternalOptions)[] = plugin.registerHelpers.getIdAndPassAuths()
 584     auths = auths.concat(plugin.registerHelpers.getExternalAuths())
 585
 586     return auths.find(a => a.authName === authName)
 587   }
 588
 589   // ###################### Private getters ######################
 590
 591   private getRegisteredPluginsOrThemes (type: PluginType) {
 592     const plugins: RegisteredPlugin[] = []
 593
 594     for (const npmName of Object.keys(this.registeredPlugins)) {
 595       const plugin = this.registeredPlugins[npmName]
 596       if (plugin.type !== type) continue
 597
 598       plugins.push(plugin)
 599     }
 600
 601     return plugins
 602   }
 603
 604   // ###################### Generate register helpers ######################
 605
 606   private getRegisterHelpers (
 607     npmName: string,
 608     plugin: PluginModel
 609   ): { registerStore: RegisterHelpers, registerOptions: RegisterServerOptions } {
 610     const onHookAdded = (options: RegisterServerHookOptions) => {
 611       if (!this.hooks[options.target]) this.hooks[options.target] = []
 612
 613       this.hooks[options.target].push({
 614         npmName,
 615         pluginName: plugin.name,
 616         handler: options.handler,
 617         priority: options.priority || 0
 618       })
 619     }
 620
 621     const registerHelpers = new RegisterHelpers(npmName, plugin, this.server, onHookAdded.bind(this))
 622
 623     return {
 624       registerStore: registerHelpers,
 625       registerOptions: registerHelpers.buildRegisterHelpers()
 626     }
 627   }
 628
 629   private sanitizeAndCheckPackageJSONOrThrow (packageJSON: PluginPackageJSON, pluginType: PluginType) {
 630     if (!packageJSON.staticDirs) packageJSON.staticDirs = {}
 631     if (!packageJSON.css) packageJSON.css = []
 632     if (!packageJSON.clientScripts) packageJSON.clientScripts = []
 633     if (!packageJSON.translations) packageJSON.translations = {}
 634
 635     const { result: packageJSONValid, badFields } = isPackageJSONValid(packageJSON, pluginType)
 636     if (!packageJSONValid) {
 637       const formattedFields = badFields.map(f => `"${f}"`)
 638                                        .join(', ')
 639
 640       throw new Error(`PackageJSON is invalid (invalid fields: ${formattedFields}).`)
 641     }
 642   }
 643
 644   static get Instance () {
 645     return this.instance || (this.instance = new this())
 646   }
 647 }