SkirdaElectronLauncher/app/assets/js/processbuilder.js
Daniel Scalzi aa0e1a20ca
Added initial support of liteloader + optional submodules.
Liteloader is loaded as a library, with special launch conditions being executed when it is enabled. Litemods are constructed into a mod list and passed to liteloader via the --modRepo argument.

The launcher now supports optional submodules. These are parsed recursively, there is no depth limit. Typically the depth will be only 2 as litemods are optional submoduless of liteloader.
2018-06-23 21:03:49 -04:00

446 lines
17 KiB
JavaScript

const AdmZip = require('adm-zip')
const {AssetGuard, Library} = require('./assetguard.js')
const child_process = require('child_process')
const ConfigManager = require('./configmanager.js')
const crypto = require('crypto')
const fs = require('fs')
const mkpath = require('mkdirp')
const os = require('os')
const path = require('path')
const rimraf = require('rimraf')
const {URL} = require('url')
class ProcessBuilder {
constructor(distroServer, versionData, forgeData, authUser){
this.gameDir = path.join(ConfigManager.getInstanceDirectory(), distroServer.id)
this.commonDir = ConfigManager.getCommonDirectory()
this.server = distroServer
this.versionData = versionData
this.forgeData = forgeData
this.authUser = authUser
this.fmlDir = path.join(this.gameDir, 'forgeModList.json')
this.llDir = path.join(this.gameDir, 'liteloaderModList.json')
this.libPath = path.join(this.commonDir, 'libraries')
this.usingLiteLoader = false
this.llPath = null
}
/**
* Convienence method to run the functions typically used to build a process.
*/
build(){
mkpath.sync(this.gameDir)
const tempNativePath = path.join(os.tmpdir(), ConfigManager.getTempNativeFolder(), crypto.pseudoRandomBytes(16).toString('hex'))
process.throwDeprecation = true
this.setupLiteLoader()
const modObj = this.resolveModConfiguration(ConfigManager.getModConfiguration(this.server.id).mods, this.server.modules)
this.constructModList('forge', modObj.fMods, true)
if(this.usingLiteLoader){
this.constructModList('liteloader', modObj.lMods, true)
}
const uberModArr = modObj.fMods.concat(modObj.lMods)
const args = this.constructJVMArguments(uberModArr, tempNativePath)
console.log(args)
const child = child_process.spawn(ConfigManager.getJavaExecutable(), args, {
cwd: this.gameDir,
detached: ConfigManager.getLaunchDetached()
})
if(ConfigManager.getLaunchDetached()){
child.unref()
}
child.stdout.on('data', (data) => {
console.log('Minecraft:', data.toString('utf8'))
})
child.stderr.on('data', (data) => {
console.log('Minecraft:', data.toString('utf8'))
})
child.on('close', (code, signal) => {
console.log('Exited with code', code)
rimraf(tempNativePath, (err) => {
if(err){
console.warn('Error while deleting temp dir', err)
} else {
console.log('Temp dir deleted successfully.')
}
})
})
return child
}
static isModEnabled(modCfg, required = null){
return modCfg != null ? ((typeof modCfg === 'boolean' && modCfg) || (typeof modCfg === 'object' && modCfg.value)) : required != null && required.def != null ? required.def : true
}
static isModOptional(mdl){
mdl.required != null && mdl.required.value != null && mdl.required.value === false
}
setupLiteLoader(){
const mdls = this.server.modules
for(let i=0; i<mdls.length; i++){
if(mdls[i].type === 'liteloader'){
const ll = mdls[i]
if(ProcessBuilder.isModOptional(ll)){
const modCfg = ConfigManager.getModConfiguration(this.server.id).mods
if(ProcessBuilder.isModEnabled(modCfg[AssetGuard._resolveWithoutVersion(ll.id)], ll.required)){
this.usingLiteLoader = true
this.llPath = path.join(this.libPath, ll.artifact.path == null ? AssetGuard._resolvePath(ll.id, ll.artifact.extension) : ll.artifact.path)
}
} else {
this.usingLiteLoader = true
this.llPath = path.join(this.libPath, ll.artifact.path == null ? AssetGuard._resolvePath(ll.id, ll.artifact.extension) : ll.artifact.path)
}
}
}
}
resolveModConfiguration(modCfg, mdls){
let fMods = []
let lMods = []
for(let i=0; i<mdls.length; i++){
const mdl = mdls[i]
if(mdl.type != null && (mdl.type === 'forgemod' || mdl.type === 'litemod' || mdl.type === 'liteloader')){
if(mdl.sub_modules != null){
const v = this.resolveModConfiguration(modCfg[AssetGuard._resolveWithoutVersion(mdl.id)], mdl.sub_modules)
fMods = fMods.concat(v.fMods)
lMods = lMods.concat(v.lMods)
if(mdl.type === 'liteloader'){
continue
}
}
if(ProcessBuilder.isModOptional(mdl)){
if(ProcessBuilder.isModEnabled(modCfg[AssetGuard._resolveWithoutVersion(mdl.id)]), mdl.required){
if(mdl.type === 'forgemod'){
fMods.push(mdl)
} else {
lMods.push(mdl)
}
}
} else {
if(mdl.type === 'forgemod'){
fMods.push(mdl)
} else {
lMods.push(mdl)
}
}
}
}
return {
fMods,
lMods
}
}
constructModList(type, mods, save = false){
const modList = {
repositoryRoot: path.join(this.commonDir, 'modstore')
}
const ids = []
for(let i=0; i<mods.length; ++i){
if(type === 'forge'){
ids.push(mods[i].id)
} else {
ids.push(mods[i].id + '@' + (mods[i].artifact.extension != null ? mods[i].artifact.extension.substring(1) : 'jar'))
}
}
modList.modRef = ids
if(save){
const json = JSON.stringify(modList, null, 4)
fs.writeFileSync(type === 'forge' ? this.fmlDir : this.llDir, json, 'UTF-8')
}
return modList
}
/**
* Construct the argument array that will be passed to the JVM process.
*
* @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
* @param {string} tempNativePath The path to store the native libraries.
* @returns {Array.<string>} An array containing the full JVM arguments for this process.
*/
constructJVMArguments(mods, tempNativePath){
let args = ['-Xmx' + ConfigManager.getMaxRAM(),
'-Xms' + ConfigManager.getMinRAM(),
'-Djava.library.path=' + tempNativePath,
'-cp',
this.classpathArg(mods, tempNativePath).join(process.platform === 'win32' ? ';' : ':'),
this.forgeData.mainClass]
if(process.platform === 'darwin'){
args.unshift('-Xdock:name=WesterosCraft')
args.unshift('-Xdock:icon=' + path.join(__dirname, '..', 'images', 'minecraft.icns'))
}
args.splice(2, 0, ...ConfigManager.getJVMOptions())
args = args.concat(this._resolveForgeArgs())
return args
}
/**
* Resolve the arguments required by forge.
*
* @returns {Array.<string>} An array containing the arguments required by forge.
*/
_resolveForgeArgs(){
const mcArgs = this.forgeData.minecraftArguments.split(' ')
const argDiscovery = /\${*(.*)}/
// Replace the declared variables with their proper values.
for(let i=0; i<mcArgs.length; ++i){
if(argDiscovery.test(mcArgs[i])){
const identifier = mcArgs[i].match(argDiscovery)[1]
let val = null;
switch(identifier){
case 'auth_player_name':
val = this.authUser.displayName
break
case 'version_name':
//val = versionData.id
val = this.server.id
break
case 'game_directory':
val = this.gameDir
break
case 'assets_root':
val = path.join(this.commonDir, 'assets')
break
case 'assets_index_name':
val = this.versionData.assets
break
case 'auth_uuid':
val = this.authUser.uuid
break
case 'auth_access_token':
val = this.authUser.accessToken
break
case 'user_type':
val = 'MOJANG'
break
case 'version_type':
val = this.versionData.type
break
}
if(val != null){
mcArgs[i] = val;
}
}
}
mcArgs.push('--modListFile')
mcArgs.push('absolute:' + this.fmlDir)
if(this.usingLiteLoader){
mcArgs.push('--modRepo')
mcArgs.push(this.llDir)
mcArgs.unshift('com.mumfrey.liteloader.launch.LiteLoaderTweaker')
mcArgs.unshift('--tweakClass')
}
// Prepare game resolution
if(ConfigManager.getFullscreen()){
mcArgs.unshift('--fullscreen')
} else {
mcArgs.unshift(ConfigManager.getGameWidth())
mcArgs.unshift('--width')
mcArgs.unshift(ConfigManager.getGameHeight())
mcArgs.unshift('--height')
}
// Prepare autoconnect
if(ConfigManager.getAutoConnect() && this.server.autoconnect){
const serverURL = new URL('my://' + this.server.server_ip)
mcArgs.unshift(serverURL.hostname)
mcArgs.unshift('--server')
if(serverURL.port){
mcArgs.unshift(serverURL.port)
mcArgs.unshift('--port')
}
}
return mcArgs
}
/**
* Resolve the full classpath argument list for this process. This method will resolve all Mojang-declared
* libraries as well as the libraries declared by the server. Since mods are permitted to declare libraries,
* this method requires all enabled mods as an input
*
* @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
* @param {string} tempNativePath The path to store the native libraries.
* @returns {Array.<string>} An array containing the paths of each library required by this process.
*/
classpathArg(mods, tempNativePath){
let cpArgs = []
// Add the version.jar to the classpath.
const version = this.versionData.id
cpArgs.push(path.join(this.commonDir, 'versions', version, version + '.jar'))
if(this.usingLiteLoader){
cpArgs.push(this.llPath)
}
// Resolve the Mojang declared libraries.
const mojangLibs = this._resolveMojangLibraries(tempNativePath)
cpArgs = cpArgs.concat(mojangLibs)
// Resolve the server declared libraries.
const servLibs = this._resolveServerLibraries(mods)
cpArgs = cpArgs.concat(servLibs)
return cpArgs
}
/**
* Resolve the libraries defined by Mojang's version data. This method will also extract
* native libraries and point to the correct location for its classpath.
*
* TODO - clean up function
*
* @param {string} tempNativePath The path to store the native libraries.
* @returns {Array.<string>} An array containing the paths of each library mojang declares.
*/
_resolveMojangLibraries(tempNativePath){
const libs = []
const libArr = this.versionData.libraries
mkpath.sync(tempNativePath)
for(let i=0; i<libArr.length; i++){
const lib = libArr[i]
if(Library.validateRules(lib.rules)){
if(lib.natives == null){
const dlInfo = lib.downloads
const artifact = dlInfo.artifact
const to = path.join(this.libPath, artifact.path)
libs.push(to)
} else {
// Extract the native library.
const natives = lib.natives
const extractInst = lib.extract
const exclusionArr = extractInst.exclude
const opSys = Library.mojangFriendlyOS()
const indexId = natives[opSys]
const dlInfo = lib.downloads
const classifiers = dlInfo.classifiers
const artifact = classifiers[indexId]
// Location of native zip.
const to = path.join(this.libPath, artifact.path)
let zip = new AdmZip(to)
let zipEntries = zip.getEntries()
// Unzip the native zip.
for(let i=0; i<zipEntries.length; i++){
const fileName = zipEntries[i].entryName
let shouldExclude = false
// Exclude noted files.
exclusionArr.forEach(function(exclusion){
if(fileName.indexOf(exclusion) > -1){
shouldExclude = true
}
})
// Extract the file.
if(!shouldExclude){
fs.writeFile(path.join(tempNativePath, fileName), zipEntries[i].getData(), (err) => {
if(err){
console.error('Error while extracting native library:', err)
}
})
}
}
}
}
}
return libs
}
/**
* Resolve the libraries declared by this server in order to add them to the classpath.
* This method will also check each enabled mod for libraries, as mods are permitted to
* declare libraries.
*
* @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
* @returns {Array.<string>} An array containing the paths of each library this server requires.
*/
_resolveServerLibraries(mods){
const mdles = this.server.modules
let libs = []
// Locate Forge/Libraries
for(let i=0; i<mdles.length; i++){
if(mdles[i].type != null && (mdles[i].type === 'forge-hosted' || mdles[i].type === 'library')){
let lib = mdles[i]
libs.push(path.join(this.libPath, lib.artifact.path == null ? AssetGuard._resolvePath(lib.id, lib.artifact.extension) : lib.artifact.path))
if(lib.sub_modules != null){
const res = this._resolveModuleLibraries(lib)
if(res.length > 0){
libs = libs.concat(res)
}
}
}
}
//Check for any libraries in our mod list.
for(let i=0; i<mods.length; i++){
if(mods.sub_modules != null){
const res = this._resolveModuleLibraries(mods[i])
if(res.length > 0){
libs = libs.concat(res)
}
}
}
return libs
}
/**
* Recursively resolve the path of each library required by this module.
*
* @param {Object} mdle A module object from the server distro index.
* @returns {Array.<string>} An array containing the paths of each library this module requires.
*/
_resolveModuleLibraries(mdle){
if(mdle.sub_modules == null){
return []
}
let libs = []
for(let i=0; i<mdle.sub_modules.length; i++){
const sm = mdle.sub_modules[i]
if(sm.type != null && sm.type == 'library'){
libs.push(path.join(this.libPath, sm.artifact.path == null ? AssetGuard._resolvePath(sm.id, sm.artifact.extension) : sm.artifact.path))
}
// If this module has submodules, we need to resolve the libraries for those.
// To avoid unnecessary recursive calls, base case is checked here.
if(mdle.sub_modules != null){
const res = this._resolveModuleLibraries(sm)
if(res.length > 0){
libs = libs.concat(res)
}
}
}
return libs
}
}
module.exports = ProcessBuilder