/
companion.js
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/
companion.js
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const fs = require('fs')
const express = require('express')
const ms = require('ms')
// @ts-ignore
const Grant = require('grant').express()
const merge = require('lodash.merge')
const cookieParser = require('cookie-parser')
const interceptor = require('express-interceptor')
const { isURL } = require('validator')
const uuid = require('uuid')
const grantConfig = require('./config/grant')()
const providerManager = require('./server/provider')
const controllers = require('./server/controllers')
const s3 = require('./server/controllers/s3')
const getS3Client = require('./server/s3-client')
const url = require('./server/controllers/url')
const emitter = require('./server/emitter')
const redis = require('./server/redis')
const { getURLBuilder } = require('./server/helpers/utils')
const jobs = require('./server/jobs')
const logger = require('./server/logger')
const middlewares = require('./server/middlewares')
const { ProviderApiError, ProviderAuthError } = require('./server/provider/error')
const { getCredentialsOverrideMiddleware } = require('./server/provider/credentials')
// @ts-ignore
const { version } = require('../package.json')
const defaultOptions = {
server: {
protocol: 'http',
path: '',
},
providerOptions: {
s3: {
acl: 'public-read',
endpoint: 'https://{service}.{region}.amazonaws.com',
conditions: [],
useAccelerateEndpoint: false,
getKey: (req, filename) => filename,
expires: ms('5 minutes') / 1000,
},
},
allowLocalUrls: false,
logClientVersion: true,
periodicPingUrls: [],
streamingUpload: false,
}
// make the errors available publicly for custom providers
module.exports.errors = { ProviderApiError, ProviderAuthError }
module.exports.socket = require('./server/socket')
/**
* Entry point into initializing the Companion app.
*
* @param {object} options
* @returns {import('express').Express}
*/
module.exports.app = (options = {}) => {
validateConfig(options)
options = merge({}, defaultOptions, options)
const providers = providerManager.getDefaultProviders()
const searchProviders = providerManager.getSearchProviders()
providerManager.addProviderOptions(options, grantConfig)
const { customProviders } = options
if (customProviders) {
providerManager.addCustomProviders(customProviders, providers, grantConfig)
}
// mask provider secrets from log messages
maskLogger(options)
// create singleton redis client
if (options.redisUrl) {
redis.client(merge({ url: options.redisUrl }, options.redisOptions || {}))
}
emitter(options.multipleInstances && options.redisUrl, options.redisPubSubScope)
const app = express()
if (options.metrics) {
app.use(middlewares.metrics({ path: options.server.path }))
// backward compatibility
// TODO remove in next major semver
if (options.server.path) {
const buildUrl = getURLBuilder(options)
app.get('/metrics', (req, res) => {
process.emitWarning('/metrics is deprecated when specifying a path to companion')
const metricsUrl = buildUrl('/metrics', true)
res.redirect(metricsUrl)
})
}
}
app.use(cookieParser()) // server tokens are added to cookies
app.use(interceptGrantErrorResponse)
// override provider credentials at request time
app.use('/connect/:authProvider/:override?', getCredentialsOverrideMiddleware(providers, options))
app.use(Grant(grantConfig))
app.use((req, res, next) => {
if (options.sendSelfEndpoint) {
const { protocol } = options.server
res.header('i-am', `${protocol}://${options.sendSelfEndpoint}`)
}
next()
})
app.use(middlewares.cors(options))
// add uppy options to the request object so it can be accessed by subsequent handlers.
app.use('*', getOptionsMiddleware(options))
app.use('/s3', s3(options.providerOptions.s3))
app.use('/url', url())
app.post('/:providerName/preauth', middlewares.hasSessionAndProvider, controllers.preauth)
app.get('/:providerName/connect', middlewares.hasSessionAndProvider, controllers.connect)
app.get('/:providerName/redirect', middlewares.hasSessionAndProvider, controllers.redirect)
app.get('/:providerName/callback', middlewares.hasSessionAndProvider, controllers.callback)
app.post('/:providerName/deauthorization/callback', middlewares.hasSessionAndProvider, controllers.deauthorizationCallback)
app.get('/:providerName/logout', middlewares.hasSessionAndProvider, middlewares.gentleVerifyToken, controllers.logout)
app.get('/:providerName/send-token', middlewares.hasSessionAndProvider, middlewares.verifyToken, controllers.sendToken)
app.get('/:providerName/list/:id?', middlewares.hasSessionAndProvider, middlewares.verifyToken, controllers.list)
app.post('/:providerName/get/:id', middlewares.hasSessionAndProvider, middlewares.verifyToken, controllers.get)
app.get('/:providerName/thumbnail/:id', middlewares.hasSessionAndProvider, middlewares.cookieAuthToken, middlewares.verifyToken, controllers.thumbnail)
// @ts-ignore Type instantiation is excessively deep and possibly infinite.
app.get('/search/:searchProviderName/list', middlewares.hasSearchQuery, middlewares.loadSearchProviderToken, controllers.list)
app.post('/search/:searchProviderName/get/:id', middlewares.loadSearchProviderToken, controllers.get)
app.param('providerName', providerManager.getProviderMiddleware(providers, true))
app.param('searchProviderName', providerManager.getProviderMiddleware(searchProviders))
if (app.get('env') !== 'test') {
jobs.startCleanUpJob(options.filePath)
}
const processId = uuid.v4()
jobs.startPeriodicPingJob({
urls: options.periodicPingUrls,
interval: options.periodicPingInterval,
count: options.periodicPingCount,
staticPayload: options.periodicPingStaticPayload,
version,
processId,
})
return app
}
// intercepts grantJS' default response error when something goes
// wrong during oauth process.
const interceptGrantErrorResponse = interceptor((req, res) => {
return {
isInterceptable: () => {
// match grant.js' callback url
return /^\/connect\/\w+\/callback/.test(req.path)
},
intercept: (body, send) => {
const unwantedBody = 'error=Grant%3A%20missing%20session%20or%20misconfigured%20provider'
if (body === unwantedBody) {
logger.error(`grant.js responded with error: ${body}`, 'grant.oauth.error', req.id)
res.set('Content-Type', 'text/plain')
const reqHint = req.id ? `Request ID: ${req.id}` : ''
send([
'Companion was unable to complete the OAuth process :(',
'Error: User session is missing or the Provider was misconfigured',
reqHint,
].join('\n'))
} else {
send(body)
}
},
}
})
/**
*
* @param {object} options
*/
const getOptionsMiddleware = (options) => {
/**
* @param {object} req
* @param {object} res
* @param {Function} next
*/
const middleware = (req, res, next) => {
const versionFromQuery = req.query.uppyVersions ? decodeURIComponent(req.query.uppyVersions) : null
req.companion = {
options,
s3Client: getS3Client(options),
authToken: req.header('uppy-auth-token') || req.query.uppyAuthToken,
clientVersion: req.header('uppy-versions') || versionFromQuery || '1.0.0',
buildURL: getURLBuilder(options),
}
if (options.logClientVersion) {
logger.info(`uppy client version ${req.companion.clientVersion}`, 'companion.client.version')
}
next()
}
return middleware
}
/**
* Informs the logger about all provider secrets that should be masked
* if they are found in a log message
*
* @param {object} companionOptions
*/
const maskLogger = (companionOptions) => {
const secrets = []
const { providerOptions, customProviders } = companionOptions
Object.keys(providerOptions).forEach((provider) => {
if (providerOptions[provider].secret) {
secrets.push(providerOptions[provider].secret)
}
})
if (customProviders) {
Object.keys(customProviders).forEach((provider) => {
if (customProviders[provider].config && customProviders[provider].config.secret) {
secrets.push(customProviders[provider].config.secret)
}
})
}
logger.setMaskables(secrets)
}
/**
* validates that the mandatory companion options are set.
* If it is invalid, it will console an error of unset options and exits the process.
* If it is valid, nothing happens.
*
* @param {object} companionOptions
*/
const validateConfig = (companionOptions) => {
const mandatoryOptions = ['secret', 'filePath', 'server.host']
/** @type {string[]} */
const unspecified = []
mandatoryOptions.forEach((i) => {
const value = i.split('.').reduce((prev, curr) => (prev ? prev[curr] : undefined), companionOptions)
if (!value) unspecified.push(`"${i}"`)
})
// vaidate that all required config is specified
if (unspecified.length) {
const messagePrefix = 'Please specify the following options to use companion:'
throw new Error(`${messagePrefix}\n${unspecified.join(',\n')}`)
}
// validate that specified filePath is writeable/readable.
try {
// @ts-ignore
fs.accessSync(`${companionOptions.filePath}`, fs.R_OK | fs.W_OK) // eslint-disable-line no-bitwise
} catch (err) {
throw new Error(
`No access to "${companionOptions.filePath}". Please ensure the directory exists and with read/write permissions.`,
)
}
const { providerOptions, periodicPingUrls } = companionOptions
if (providerOptions) {
const deprecatedOptions = { microsoft: 'onedrive', google: 'drive' }
Object.keys(deprecatedOptions).forEach((deprected) => {
if (providerOptions[deprected]) {
throw new Error(`The Provider option "${deprected}" is no longer supported. Please use the option "${deprecatedOptions[deprected]}" instead.`)
}
})
}
if (companionOptions.uploadUrls == null || companionOptions.uploadUrls.length === 0) {
logger.warn('Running without uploadUrls specified is a security risk if running in production', 'startup.uploadUrls')
}
if (periodicPingUrls != null && (
!Array.isArray(periodicPingUrls)
|| periodicPingUrls.some((url2) => !isURL(url2, { protocols: ['http', 'https'], require_protocol: true, require_tld: false }))
)) {
throw new TypeError('Invalid periodicPingUrls')
}
}