server/lib/plugins/plugin-manager.ts

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