Successfully launched vanilla minecraft, however much code cleanup is pending.

.gitignore

@@ -1,4 +1,5 @@
 /node_modules/
 /.vs/
 /.vscode/
-/mcfiles/
+/mcfiles/
+/logs/

app/assets/js/assetdownload.js

@@ -4,6 +4,7 @@ const path = require('path')
 const mkpath = require('mkdirp');
 const async = require('async')
 const crypto = require('crypto')
+const libary = require('./library.js')
 
 function Asset(from, to, size, hash){
     this.from = from
@@ -93,7 +94,7 @@ 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(library.validateRules(lib['rules'])){
             if(lib['natives'] == null){
                 const dlInfo = lib['downloads']
                 const artifact = dlInfo['artifact']
@@ -119,7 +120,7 @@ exports.downloadLibraries = function(versionData, basePath){
                 }
             } else {
                 const natives = lib['natives']
-                const opSys = mojangFriendlyOS()
+                const opSys = library.mojangFriendlyOS()
                 const indexId = natives[opSys]
                 const dlInfo = lib['downloads']
                 const classifiers = dlInfo['classifiers']
@@ -238,41 +239,4 @@ validateLocalIntegrity = function(filePath, algo, hash){
         }
     }
     return false;
-}
-
-validateRules = function(rules){
-    if(rules == null) return true
-
-    let result = true
-    rules.forEach(function(rule){
-        const action = rule['action']
-        const osProp = rule['os']
-        if(action != null){
-            if(osProp != null){
-                 const osName = osProp['name']
-                 const osMoj = mojangFriendlyOS()
-                 if(action === 'allow'){
-                     result = osName === osMoj
-                     return
-                 } else if(action === 'disallow'){
-                     result = osName !== osMoj
-                     return
-                 }
-            }
-        }
-    })
-    return result
-}
-
-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';
-    }
 }

app/assets/js/launchprocess.js

@@ -2,6 +2,10 @@ const mojang = require('mojang')
 const uuidV4 = require('uuid/v4')
 const path = require('path')
 const child_process = require('child_process')
+const library = require('./library.js')
+const fs = require('fs')
+const unzip = require('unzip')
+const mkpath = require('mkdirp');
 
 exports.launchMinecraft = function(versionData, basePath){
     const authPromise = mojang.auth('EMAIL', 'PASS', uuidV4(), {
@@ -11,8 +15,9 @@ exports.launchMinecraft = function(versionData, basePath){
     authPromise.then(function(data){
         const hardcodedargs = ''
         const args = finalizeArguments(versionData, data, basePath)
-        console.log(args)
-        const child = child_process.execFile(basePath)
+        //console.log(args)
+        //TODO make this dynamic
+        const child = child_process.spawn('C:\\Program Files\\Java\\jre1.8.0_131\\bin\\javaw.exe', args)
     })
 }
 
@@ -20,6 +25,15 @@ finalizeArguments = function(versionData, authData, basePath){
     const mcArgs = versionData['minecraftArguments']
     const regex = new RegExp('\\${*(.*)}')
     const argArr = mcArgs.split(' ')
+    argArr.unshift('net.minecraft.client.main.Main')
+    argArr.unshift(classpathArg(versionData, basePath))
+    argArr.unshift('-cp')
+    argArr.unshift('-Djava.library.path=' + path.join(basePath, 'natives'))
+    argArr.unshift('-Xmn128M')
+    argArr.unshift('-XX:-UseAdaptiveSizePolicy')
+    argArr.unshift('-XX:+CMSIncrementalMode')
+    argArr.unshift('-XX:+UseConcMarkSweepGC')
+    argArr.unshift('-Xmx1G')
     for(let i=0; i<argArr.length; i++){
         if(regex.test(argArr[i])){
             const identifier = argArr[i].match(regex)[1]
@@ -28,7 +42,7 @@ finalizeArguments = function(versionData, authData, basePath){
             switch(identifier){
                 case 'auth_player_name':
                     //TODO make this DYNAMIC
-                    newVal = 'NAME'
+                    newVal = 'iPepsiHD'
                     break
                 case 'version_name':
                     newVal = versionData['id']
@@ -44,7 +58,7 @@ finalizeArguments = function(versionData, authData, basePath){
                     break
                 case 'auth_uuid':
                     //TODO make this DYNAMIC
-                    newVal = 'UUID'
+                    newVal = '48f0a3d02ae14ca4aa0011bb8bc4f39e'
                     break
                 case 'auth_access_token':
                     newVal = authData['accessToken']
@@ -60,5 +74,64 @@ finalizeArguments = function(versionData, authData, basePath){
             argArr[i] = newVal
         }
     }
-    return argArr.join(' ')
+
+    return argArr
+}
+
+classpathArg = function(versionData, basePath){
+    const libArr = versionData['libraries']
+    const libPath = path.join(basePath, 'libraries')
+    const nativePath = path.join(basePath, 'natives')
+    //TODO make this dynamic
+    const cpArgs = ['C:\\Users\\Asus\\Desktop\\LauncherElectron\\mcfiles\\versions\\1.11.2\\1.11.2.jar']
+    libArr.forEach(function(lib){
+        if(library.validateRules(lib['rules'])){
+            if(lib['natives'] == null){
+                const dlInfo = lib['downloads']
+                const artifact = dlInfo['artifact']
+                const to = path.join(libPath, artifact['path'])
+                cpArgs.push(to)
+            } else {
+                //Now we need to extract natives.
+                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]
+
+                const to = path.join(libPath, artifact['path'])
+
+                fs.createReadStream(to).pipe(unzip.Parse()).on('entry', function(entry){
+                    const fileName = entry.path
+                    const type = entry.type
+                    const size = entry.size
+
+                    console.log(fileName)
+
+                    let shouldExclude = false
+
+                    exclusionArr.forEach(function(exclusion){
+                        if(exclusion.indexOf(fileName) > -1){
+                            shouldExclude = true
+                        }
+                    })
+
+                    if(shouldExclude){
+                        entry.autodrain()
+                    }
+                    else {
+                        mkpath.sync(path.join(nativePath, fileName, '..'))
+                        entry.pipe(fs.createWriteStream(path.join(nativePath, fileName)))
+                    }
+                })
+
+                cpArgs.push(to)
+            }
+        }
+    })
+
+    return cpArgs.join(';')
 }

app/assets/js/library.js

@@ -0,0 +1,37 @@
+
+exports.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';
+    }
+}
+
+exports.validateRules = function(rules){
+    if(rules == null) return true
+
+    let result = true
+    rules.forEach(function(rule){
+        const action = rule['action']
+        const osProp = rule['os']
+        if(action != null){
+            if(osProp != null){
+                 const osName = osProp['name']
+                 const osMoj = exports.mojangFriendlyOS()
+                 if(action === 'allow'){
+                     result = osName === osMoj
+                     return
+                 } else if(action === 'disallow'){
+                     result = osName !== osMoj
+                     return
+                 }
+            }
+        }
+    })
+    return result
+}

index.js

@@ -18,16 +18,16 @@ function createWindow() {
     win.setMenu(null)
 
     //Code for testing, marked for removal one it's properly implemented.
-    /*const assetdl = require('./app/assets/js/assetdownload.js')
+    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)
-        //require('./app/assets/js/launchprocess.js').launchMinecraft(data, basePath)
-    })*/
+        //assetdl.downloadAssets(data, basePath)
+        //assetdl.downloadClient(data, basePath)
+        //assetdl.downloadLogConfig(data, basePath)
+        //assetdl.downloadLibraries(data, basePath)
+        require('./app/assets/js/launchprocess.js').launchMinecraft(data, basePath)
+    })
 
     win.on('closed', () => {
         win = null

package.json

@@ -21,6 +21,7 @@
     "electron": "^1.6.5",
     "mojang": "^0.4.0",
     "promise": "^7.1.1",
+    "unzip": "^0.1.11",
     "uuid": "^3.0.1"
   }
 }