Working on full support for retrieval of vanilla game files (libs, assets, client, etc)

This commit is contained in:
Daniel Scalzi 2017-04-24 18:48:02 -04:00
parent 1e37ee005d
commit a36ca5ba26
3 changed files with 178 additions and 8 deletions

View File

@ -10,29 +10,189 @@ function Asset(from, to, size){
this.size = size
}
exports.getMojangAssets = function(version, basePath){
function AssetIndex(id, sha1, size, url, totalSize){
this.id = id
this.sha1 = sha1
this.size = size
this.url = url
this.totalSize = totalSize
}
function ClientDownload(){
}
function ServerDownload(){
}
function Library(){
}
/**
* This function will download the version index data and read it into a Javascript
* Object. This object will then be returned.
*/
exports.parseVersionData = function(version, basePath){
const name = version + '.json'
const indexURL = 'https://s3.amazonaws.com/Minecraft.Download/indexes/' + name
const baseURL = 'https://s3.amazonaws.com/Minecraft.Download/versions/' + version + '/' + name
const versionPath = path.join(basePath, 'versions', version)
return new Promise(function(fulfill, reject){
request.head(baseURL, function(err, res, body){
console.log('Preparing download of ' + version + ' assets.')
mkpath.sync(versionPath)
const stream = request(baseURL).pipe(fs.createWriteStream(path.join(versionPath, name)))
stream.on('finish', function(){
fulfill(JSON.parse(fs.readFileSync(path.join(versionPath, name))))
})
})
})
}
/**
* Download the client for version. This file is 'client.jar' although
* it must be renamed to '{version}'.jar.
*/
exports.downloadClient = function(versionData, basePath){
const dls = versionData['downloads']
const clientData = dls['client']
const url = clientData['url']
const size = clientData['size']
const version = versionData['id']
const targetPath = path.join(basePath, 'versions', version)
const targetFile = version + '.jar'
request.head(url, function(err, res, body){
console.log('Downloading ' + version + ' client..')
mkpath.sync(targetPath)
const stream = request(url).pipe(fs.createWriteStream(path.join(targetPath, targetFile)))
stream.on('finish', function(){
console.log('Finished downloading ' + version + ' client.')
})
})
}
exports.downloadLogConfig = function(versionData, basePath){
const logging = versionData['logging']
const client = logging['client']
const file = client['file']
const version = versionData['id']
const targetPath = path.join(basePath, 'assets', 'log_configs')
const name = file['id']
const url = file['url']
request.head(url, function(err, res, body){
console.log('Downloading ' + version + ' log config..')
mkpath.sync(targetPath)
const stream = request(url).pipe(fs.createWriteStream(path.join(targetPath, name)))
stream.on('finish', function(){
console.log('Finished downloading ' + version + ' log config..')
})
})
}
exports.downloadLibraries = function(versionData, basePath){
const libArr = versionData['libraries']
const libPath = path.join(basePath, 'libraries')
async.eachLimit(libArr, 1, function(lib, cb){
if(validateRules(lib['rules'])){
if(lib['natives'] == null){
const dlInfo = lib['downloads']
const artifact = dlInfo['artifact']
const libSize = artifact['size']
const to = path.join(libPath, artifact['path'])
const from = artifact['url']
mkpath.sync(path.join(to, ".."))
let req = request(from)
let writeStream = fs.createWriteStream(to)
req.pipe(writeStream)
let acc = 0;
req.on('data', function(chunk){
acc += chunk.length
console.log('Progress', acc/libSize)
})
writeStream.on('close', function(){
cb()
})
} else {
//TODO Perform native extraction.
}
}
}, function(err){
if(err){
console.log('A file failed to process');
} else {
console.log('All files have been processed successfully');
}
})
}
validateRules = function(rules){
if(rules == null) return true;
rules.forEach(function(rule){
const action = rule['action']
if(action != null){
if(action === 'disallow'){
osName = action['os']
if(osName != null){
if(osName === mojangFriendlyOS()){
return false;
}
}
}
}
})
return true;
}
mojangFriendlyOS = function(){
const opSys = process.platform
if (opSys === 'darwin') {
return 'osx'
} else if (opSys === 'win32'){
return 'windows'
} else if (opSys === 'linux'){
return 'linux'
} else {
return 'unknown_os'
}
}
/**
* Given an index url, this function will asynchonously download the
* assets associated with that version.
*/
exports.downloadAssets = function(versionData, basePath){
//Asset index constants.
const assetIndex = versionData['assetIndex']
const indexURL = assetIndex['url']
const datasize = assetIndex['totalSize']
const gameVersion = versionData['id']
const assetVersion = assetIndex['id']
const name = assetVersion + '.json'
//Asset constants
const resourceURL = 'http://resources.download.minecraft.net/'
const localPath = path.join(basePath, 'assets')
const indexPath = path.join(localPath, 'indexes')
const objectPath = path.join(localPath, 'objects')
request.head(indexURL, function (err, res, body) {
console.log('Downloading ' + version + ' asset index.')
console.log('Downloading ' + gameVersion + ' asset index.')
mkpath.sync(indexPath)
const stream = request(indexURL).pipe(fs.createWriteStream(path.join(indexPath, name)))
stream.on('finish', function() {
const data = JSON.parse(fs.readFileSync(path.join(indexPath, name), 'utf-8'))
const assetArr = []
let datasize = 0;
Object.keys(data['objects']).forEach(function(key, index){
const ob = data['objects'][key]
const hash = String(ob['hash'])
const assetName = path.join(hash.substring(0, 2), hash)
const urlName = hash.substring(0, 2) + "/" + hash
const ast = new Asset(resourceURL + urlName, path.join(objectPath, assetName), ob['size'])
datasize += ob['size']
assetArr.push(ast)
})
let acc = 0;

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@ -18,7 +18,15 @@ function createWindow() {
win.setMenu(null)
//Code for testing, marked for removal one it's properly implemented.
//require('./app/assets/js/assetdownload.js').getMojangAssets('1.11', path.join(__dirname, 'mcfiles'))
/*const assetdl = require('./app/assets/js/assetdownload.js')
const basePath = path.join(__dirname, 'mcfiles')
const dataPromise = assetdl.parseVersionData('1.11.2', basePath)
dataPromise.then(function(data){
assetdl.downloadAssets(data, basePath)
assetdl.downloadClient(data, basePath)
assetdl.downloadLogConfig(data, basePath)
assetdl.downloadLibraries(data, basePath)
})*/
win.on('closed', () => {
win = null
@ -26,9 +34,10 @@ function createWindow() {
}
function getPlatformIcon(filename){
if (process.platform === 'darwin') {
const opSys = process.platform
if (opSys === 'darwin') {
filename = filename + '.icns'
} else if (process.platform === 'win32') {
} else if (opSys === 'win32') {
filename = filename + '.ico'
} else {
filename = filename + '.png'

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@ -20,5 +20,6 @@
"async": "^2.3.0",
"electron": "^1.6.5",
"mojang": "^0.4.0",
"promise": "^7.1.1"
}
}