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'use strict'
const crypto = require('crypto')
const fs = require('fs')
const path = require('path')
const {merge} = require('lodash')
const deepFreeze = require('deep-freeze')
const {Environment, Permission} = require('./enum')
const logger = require('../logger')
const appRootPath = path.resolve(__dirname, '../../')
const env = process.env.NODE_ENV || Environment.development
const debugConfig = {
debug: (env === Environment.development)
}
// Get version string from package.json
const {version} = require(path.join(appRootPath, 'package.json'))
const packageConfig = {
version: version,
minimumCompatibleVersion: '0.5.0'
}
const configFilePath = path.resolve(appRootPath, process.env.CMD_CONFIG_FILE ||
'config.json')
const fileConfig = fs.existsSync(configFilePath) ? require(configFilePath)[env] : undefined
let config = require('./default')
merge(config, require('./defaultSSL'))
merge(config, require('./oldDefault'))
merge(config, debugConfig)
merge(config, packageConfig)
merge(config, fileConfig)
merge(config, require('./oldEnvironment'))
merge(config, require('./hackmdEnvironment'))
merge(config, require('./environment'))
merge(config, require('./dockerSecret'))
// load LDAP CA
if (config.ldap.tlsca) {
let ca = config.ldap.tlsca.split(',')
let caContent = []
for (let i of ca) {
if (fs.existsSync(i)) {
caContent.push(fs.readFileSync(i, 'utf8'))
}
}
let tlsOptions = {
ca: caContent
}
config.ldap.tlsOptions = config.ldap.tlsOptions ? Object.assign(config.ldap.tlsOptions, tlsOptions) : tlsOptions
}
// Permission
config.permission = Permission
if (!config.allowAnonymous && !config.allowAnonymousEdits) {
delete config.permission.freely
}
if (!(config.defaultPermission in config.permission)) {
config.defaultPermission = config.permission.editable
}
// cache result, cannot change config in runtime!!!
config.isStandardHTTPsPort = (function isStandardHTTPsPort () {
return config.useSSL && config.port === 443
})()
config.isStandardHTTPPort = (function isStandardHTTPPort () {
return !config.useSSL && config.port === 80
})()
// cache serverURL
config.serverURL = (function getserverurl () {
var url = ''
if (config.domain) {
var protocol = config.protocolUseSSL ? 'https://' : 'http://'
url = protocol + config.domain
if (config.urlAddPort) {
if (!config.isStandardHTTPPort || !config.isStandardHTTPsPort) {
url += ':' + config.port
}
}
}
if (config.urlPath) {
url += '/' + config.urlPath
}
return url
})()
config.Environment = Environment
// auth method
config.isFacebookEnable = config.facebook.clientID && config.facebook.clientSecret
config.isGoogleEnable = config.google.clientID && config.google.clientSecret
config.isDropboxEnable = config.dropbox.clientID && config.dropbox.clientSecret
config.isTwitterEnable = config.twitter.consumerKey && config.twitter.consumerSecret
config.isEmailEnable = config.email
config.isOpenIDEnable = config.openID
config.isGitHubEnable = config.github.clientID && config.github.clientSecret
config.isGitLabEnable = config.gitlab.clientID && config.gitlab.clientSecret
config.isMattermostEnable = config.mattermost.clientID && config.mattermost.clientSecret
config.isLDAPEnable = config.ldap.url
config.isSAMLEnable = config.saml.idpSsoUrl
config.isOAuth2Enable = config.oauth2.clientID && config.oauth2.clientSecret
config.isPDFExportEnable = config.allowPDFExport
// Check gitlab api version
if (config.gitlab && config.gitlab.version !== 'v4' && config.gitlab.version !== 'v3') {
logger.warn('config.js contains wrong version (' + config.gitlab.version + ') for gitlab api; it should be \'v3\' or \'v4\'. Defaulting to v4')
config.gitlab.version = 'v4'
}
// Only update i18n files in development setups
config.updateI18nFiles = (env === Environment.development)
// merge legacy values
let keys = Object.keys(config)
const uppercase = /[A-Z]/
for (let i = keys.length; i--;) {
let lowercaseKey = keys[i].toLowerCase()
// if the config contains uppercase letters
// and a lowercase version of this setting exists
// and the config with uppercase is not set
// we set the new config using the old key.
if (uppercase.test(keys[i]) &&
config[lowercaseKey] !== undefined &&
fileConfig[keys[i]] === undefined) {
logger.warn('config.js contains deprecated lowercase setting for ' + keys[i] + '. Please change your config.js file to replace ' + lowercaseKey + ' with ' + keys[i])
config[keys[i]] = config[lowercaseKey]
}
}
// Notify users about the prefix change and inform them they use legacy prefix for environment variables
if (Object.keys(process.env).toString().indexOf('HMD_') !== -1) {
logger.warn('Using legacy HMD prefix for environment variables. Please change your variables in future. For details see: https://github.com/hackmdio/codimd#environment-variables-will-overwrite-other-server-configs')
}
// Generate session secret if it stays on default values
if (config.sessionSecret === 'secret') {
logger.warn('Session secret not set. Using random generated one. Please set `sessionSecret` in your config.js file. All users will be logged out.')
config.sessionSecret = crypto.randomBytes(Math.ceil(config.sessionSecretLen / 2)) // generate crypto graphic random number
.toString('hex') // convert to hexadecimal format
.slice(0, config.sessionSecretLen) // return required number of characters
}
// Validate upload upload providers
if (['filesystem', 's3', 'minio', 'imgur', 'azure'].indexOf(config.imageUploadType) === -1) {
logger.error('"imageuploadtype" is not correctly set. Please use "filesystem", "s3", "minio", "azure" or "imgur". Defaulting to "imgur"')
config.imageUploadType = 'filesystem'
}
// figure out mime types for image uploads
switch (config.imageUploadType) {
case 'imgur':
config.allowedUploadMimeTypes = [
'image/jpeg',
'image/png',
'image/jpg',
'image/gif'
]
break
default:
config.allowedUploadMimeTypes = [
'image/jpeg',
'image/png',
'image/jpg',
'image/gif',
'image/svg+xml'
]
}
// generate correct path
config.sslCAPath.forEach(function (capath, i, array) {
array[i] = path.resolve(appRootPath, capath)
})
config.sslCertPath = path.resolve(appRootPath, config.sslCertPath)
config.sslKeyPath = path.resolve(appRootPath, config.sslKeyPath)
config.dhParamPath = path.resolve(appRootPath, config.dhParamPath)
config.viewPath = path.resolve(appRootPath, config.viewPath)
config.tmpPath = path.resolve(appRootPath, config.tmpPath)
config.defaultNotePath = path.resolve(appRootPath, config.defaultNotePath)
config.docsPath = path.resolve(appRootPath, config.docsPath)
config.uploadsPath = path.resolve(appRootPath, config.uploadsPath)
// make config readonly
config = deepFreeze(config)
module.exports = config
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