SkirdaElectronLauncher/app/assets/js/distromanager.js

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const fs = require('fs')
const path = require('path')
const request = require('request')
const ConfigManager = require('./configmanager')
const logger = require('./loggerutil')('%c[DistroManager]', 'color: #a02d2a; font-weight: bold')
/**
* Represents the download information
* for a specific module.
*/
class Artifact {
/**
* Parse a JSON object into an Artifact.
*
* @param {Object} json A JSON object representing an Artifact.
*
* @returns {Artifact} The parsed Artifact.
*/
static fromJSON(json){
return Object.assign(new Artifact(), json)
}
/**
* Get the MD5 hash of the artifact. This value may
* be undefined for artifacts which are not to be
* validated and updated.
*
* @returns {string} The MD5 hash of the Artifact or undefined.
*/
getHash(){
return this.MD5
}
/**
* @returns {number} The download size of the artifact.
*/
getSize(){
return this.size
}
/**
* @returns {string} The download url of the artifact.
*/
getURL(){
return this.url
}
/**
* @returns {string} The artifact's destination path.
*/
getPath(){
return this.path
}
}
exports.Artifact
/**
* Represents a the requirement status
* of a module.
*/
class Required {
/**
* Parse a JSON object into a Required object.
*
* @param {Object} json A JSON object representing a Required object.
*
* @returns {Required} The parsed Required object.
*/
static fromJSON(json){
if(json == null){
return new Required(true, true)
} else {
return new Required(json.value == null ? true : json.value, json.def == null ? true : json.def)
}
}
constructor(value, def){
this.value = value
this.default = def
}
/**
* Get the default value for a required object. If a module
* is not required, this value determines whether or not
* it is enabled by default.
*
* @returns {boolean} The default enabled value.
*/
isDefault(){
return this.default
}
/**
* @returns {boolean} Whether or not the module is required.
*/
isRequired(){
return this.value
}
}
exports.Required
/**
* Represents a module.
*/
class Module {
/**
* Parse a JSON object into a Module.
*
* @param {Object} json A JSON object representing a Module.
* @param {string} serverid The ID of the server to which this module belongs.
*
* @returns {Module} The parsed Module.
*/
static fromJSON(json, serverid){
return new Module(json.id, json.name, json.type, json.required, json.artifact, json.subModules, serverid)
}
/**
* Resolve the default extension for a specific module type.
*
* @param {string} type The type of the module.
*
* @return {string} The default extension for the given type.
*/
static _resolveDefaultExtension(type){
switch (type) {
case exports.Types.Library:
case exports.Types.ForgeHosted:
case exports.Types.LiteLoader:
case exports.Types.ForgeMod:
return 'jar'
case exports.Types.LiteMod:
return 'litemod'
case exports.Types.File:
default:
return 'jar' // There is no default extension really.
}
}
constructor(id, name, type, required, artifact, subModules, serverid) {
this.identifier = id
this.type = type
this._resolveMetaData()
this.name = name
this.required = Required.fromJSON(required)
this.artifact = Artifact.fromJSON(artifact)
this._resolveArtifactPath(artifact.path, serverid)
this._resolveSubModules(subModules, serverid)
}
_resolveMetaData(){
try {
const m0 = this.identifier.split('@')
this.artifactExt = m0[1] || Module._resolveDefaultExtension(this.type)
const m1 = m0[0].split(':')
this.artifactClassifier = m1[3] || undefined
this.artifactVersion = m1[2] || '???'
this.artifactID = m1[1] || '???'
this.artifactGroup = m1[0] || '???'
} catch (err) {
// Improper identifier
logger.error('Improper ID for module', this.identifier, err)
}
}
_resolveArtifactPath(artifactPath, serverid){
const pth = artifactPath == null ? path.join(...this.getGroup().split('.'), this.getID(), this.getVersion(), `${this.getID()}-${this.getVersion()}${this.artifactClassifier != undefined ? `-${this.artifactClassifier}` : ''}.${this.getExtension()}`) : artifactPath
switch (this.type){
case exports.Types.Library:
case exports.Types.ForgeHosted:
case exports.Types.LiteLoader:
this.artifact.path = path.join(ConfigManager.getCommonDirectory(), 'libraries', pth)
break
case exports.Types.ForgeMod:
case exports.Types.LiteMod:
this.artifact.path = path.join(ConfigManager.getCommonDirectory(), 'modstore', pth)
break
case exports.Types.VersionManifest:
this.artifact.path = path.join(ConfigManager.getCommonDirectory(), 'versions', this.getIdentifier(), `${this.getIdentifier()}.json`)
break
case exports.Types.File:
default:
this.artifact.path = path.join(ConfigManager.getInstanceDirectory(), serverid, pth)
break
}
}
_resolveSubModules(json, serverid){
const arr = []
if(json != null){
for(let sm of json){
arr.push(Module.fromJSON(sm, serverid))
}
}
this.subModules = arr.length > 0 ? arr : null
}
/**
* @returns {string} The full, unparsed module identifier.
*/
getIdentifier(){
return this.identifier
}
/**
* @returns {string} The name of the module.
*/
getName(){
return this.name
}
/**
* @returns {Required} The required object declared by this module.
*/
getRequired(){
return this.required
}
/**
* @returns {Artifact} The artifact declared by this module.
*/
getArtifact(){
return this.artifact
}
/**
* @returns {string} The maven identifier of this module's artifact.
*/
getID(){
return this.artifactID
}
/**
* @returns {string} The maven group of this module's artifact.
*/
getGroup(){
return this.artifactGroup
}
/**
* @returns {string} The identifier without he version or extension.
*/
getVersionlessID(){
return this.getGroup() + ':' + this.getID()
}
/**
* @returns {string} The identifier without the extension.
*/
getExtensionlessID(){
return this.getIdentifier().split('@')[0]
}
/**
* @returns {string} The version of this module's artifact.
*/
getVersion(){
return this.artifactVersion
}
/**
* @returns {string} The classifier of this module's artifact
*/
getClassifier(){
return this.artifactClassifier
}
/**
* @returns {string} The extension of this module's artifact.
*/
getExtension(){
return this.artifactExt
}
/**
* @returns {boolean} Whether or not this module has sub modules.
*/
hasSubModules(){
return this.subModules != null
}
/**
* @returns {Array.<Module>} An array of sub modules.
*/
getSubModules(){
return this.subModules
}
/**
* @returns {string} The type of the module.
*/
getType(){
return this.type
}
}
exports.Module
/**
* Represents a server configuration.
*/
class Server {
/**
* Parse a JSON object into a Server.
*
* @param {Object} json A JSON object representing a Server.
*
* @returns {Server} The parsed Server object.
*/
static fromJSON(json){
const mdls = json.modules
json.modules = []
const serv = Object.assign(new Server(), json)
serv._resolveModules(mdls)
return serv
}
_resolveModules(json){
const arr = []
for(let m of json){
arr.push(Module.fromJSON(m, this.getID()))
}
this.modules = arr
}
/**
* @returns {string} The ID of the server.
*/
getID(){
return this.id
}
/**
* @returns {string} The name of the server.
*/
getName(){
return this.name
}
/**
* @returns {string} The description of the server.
*/
getDescription(){
return this.description
}
/**
* @returns {string} The URL of the server's icon.
*/
getIcon(){
return this.icon
}
/**
* @returns {string} The version of the server configuration.
*/
getVersion(){
return this.version
}
/**
* @returns {string} The IP address of the server.
*/
getAddress(){
return this.address
}
/**
* @returns {string} The minecraft version of the server.
*/
getMinecraftVersion(){
return this.minecraftVersion
}
/**
* @returns {boolean} Whether or not this server is the main
* server. The main server is selected by the launcher when
* no valid server is selected.
*/
isMainServer(){
return this.mainServer
}
/**
* @returns {boolean} Whether or not the server is autoconnect.
* by default.
*/
isAutoConnect(){
return this.autoconnect
}
/**
* @returns {Array.<Module>} An array of modules for this server.
*/
getModules(){
return this.modules
}
}
exports.Server
/**
* Represents the Distribution Index.
*/
class DistroIndex {
/**
* Parse a JSON object into a DistroIndex.
*
* @param {Object} json A JSON object representing a DistroIndex.
*
* @returns {DistroIndex} The parsed Server object.
*/
static fromJSON(json){
const servers = json.servers
json.servers = []
const distro = Object.assign(new DistroIndex(), json)
distro._resolveServers(servers)
distro._resolveMainServer()
return distro
}
_resolveServers(json){
const arr = []
for(let s of json){
arr.push(Server.fromJSON(s))
}
this.servers = arr
}
_resolveMainServer(){
for(let serv of this.servers){
if(serv.mainServer){
this.mainServer = serv.id
return
}
}
// If no server declares default_selected, default to the first one declared.
this.mainServer = (this.servers.length > 0) ? this.servers[0].getID() : null
}
/**
* @returns {string} The version of the distribution index.
*/
getVersion(){
return this.version
}
/**
* @returns {string} The URL to the news RSS feed.
*/
getRSS(){
return this.rss
}
/**
* @returns {Array.<Server>} An array of declared server configurations.
*/
getServers(){
return this.servers
}
/**
* Get a server configuration by its ID. If it does not
* exist, null will be returned.
*
* @param {string} id The ID of the server.
*
* @returns {Server} The server configuration with the given ID or null.
*/
getServer(id){
for(let serv of this.servers){
if(serv.id === id){
return serv
}
}
return null
}
/**
* Get the main server.
*
* @returns {Server} The main server.
*/
getMainServer(){
return this.mainServer != null ? this.getServer(this.mainServer) : null
}
}
exports.DistroIndex
exports.Types = {
Library: 'Library',
ForgeHosted: 'ForgeHosted',
Forge: 'Forge', // Unimplemented
LiteLoader: 'LiteLoader',
ForgeMod: 'ForgeMod',
LiteMod: 'LiteMod',
File: 'File',
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VersionManifest: 'VersionManifest'
}
let DEV_MODE = false
const DISTRO_PATH = path.join(ConfigManager.getLauncherDirectory(), 'distribution.json')
const DEV_PATH = path.join(ConfigManager.getLauncherDirectory(), 'dev_distribution.json')
let data = null
/**
* @returns {Promise.<DistroIndex>}
*/
exports.pullRemote = function(){
if(DEV_MODE){
return exports.pullLocal()
}
return new Promise((resolve, reject) => {
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//const distroURL = 'http://mc.westeroscraft.com/WesterosCraftLauncher/distribution.json'
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const distroURL = "https://skirda.gregbrzezinski.com/distr.json"
//const distroURL = 'https://gist.githubusercontent.com/dscalzi/53b1ba7a11d26a5c353f9d5ae484b71b/raw/'
const opts = {
url: distroURL,
timeout: 2500
}
const distroDest = path.join(ConfigManager.getLauncherDirectory(), 'distribution.json')
request(opts, (error, resp, body) => {
if(!error){
try {
data = DistroIndex.fromJSON(JSON.parse(body))
} catch (e) {
reject(e)
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return
}
fs.writeFile(distroDest, body, 'utf-8', (err) => {
if(!err){
resolve(data)
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return
} else {
reject(err)
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return
}
})
} else {
reject(error)
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return
}
})
})
}
/**
* @returns {Promise.<DistroIndex>}
*/
exports.pullLocal = function(){
return new Promise((resolve, reject) => {
fs.readFile(DEV_MODE ? DEV_PATH : DISTRO_PATH, 'utf-8', (err, d) => {
if(!err){
data = DistroIndex.fromJSON(JSON.parse(d))
resolve(data)
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return
} else {
reject(err)
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return
}
})
})
}
exports.setDevMode = function(value){
if(value){
logger.log('Developer mode enabled.')
logger.log('If you don\'t know what that means, revert immediately.')
} else {
logger.log('Developer mode disabled.')
}
DEV_MODE = value
}
exports.isDevMode = function(){
return DEV_MODE
}
/**
* @returns {DistroIndex}
*/
exports.getDistribution = function(){
return data
}