OctoLauncher 1.3.1
Manifest-based CDN updater and mod manager for the OctoWoW 1.12.1 client: launcher-owned realmlist, torrent-backed content sync with bundled aria2c, antivirus and Defender exclusion handling, hardware-aware render distance, optional client tweaks and mods, and the in-launcher news feed.
This commit is contained in:
OctoWoW
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import os from 'node:os';
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import { spawn } from 'node:child_process';
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import Logger from 'electron-log/main';
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export type DisplayDevice = {
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index: number;
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deviceName: string;
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deviceString: string;
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attached: boolean;
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primary: boolean;
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width: number;
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height: number;
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refresh: number;
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modes: string[];
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};
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const SCRIPT = [
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'$ErrorActionPreference = "Stop"',
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"$ProgressPreference = 'SilentlyContinue'",
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"Add-Type -TypeDefinition @'",
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'using System;',
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'using System.Runtime.InteropServices;',
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'public static class VmmfDisplays {',
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' [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Ansi)]',
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' public struct DISPLAY_DEVICE {',
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' public int cb;',
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' [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public string DeviceName;',
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' [MarshalAs(UnmanagedType.ByValTStr, SizeConst=128)] public string DeviceString;',
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' public int StateFlags;',
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' [MarshalAs(UnmanagedType.ByValTStr, SizeConst=128)] public string DeviceID;',
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' [MarshalAs(UnmanagedType.ByValTStr, SizeConst=128)] public string DeviceKey;',
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' }',
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' [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Ansi)]',
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' public struct DEVMODE {',
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' [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public string dmDeviceName;',
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' public short dmSpecVersion; public short dmDriverVersion; public short dmSize; public short dmDriverExtra;',
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' public int dmFields; public int dmPositionX; public int dmPositionY;',
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' public int dmDisplayOrientation; public int dmDisplayFixedOutput;',
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' public short dmColor; public short dmDuplex; public short dmYResolution; public short dmTTOption; public short dmCollate;',
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' [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public string dmFormName;',
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' public short dmLogPixels; public int dmBitsPerPel; public int dmPelsWidth; public int dmPelsHeight;',
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' public int dmDisplayFlags; public int dmDisplayFrequency;',
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' public int dmICMMethod; public int dmICMIntent; public int dmMediaType; public int dmDitherType;',
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' public int dmReserved1; public int dmReserved2; public int dmPanningWidth; public int dmPanningHeight;',
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' }',
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' [DllImport("user32.dll", EntryPoint="EnumDisplayDevicesA", CharSet=CharSet.Ansi)]',
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' public static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum, ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags);',
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' [DllImport("user32.dll", EntryPoint="EnumDisplaySettingsA", CharSet=CharSet.Ansi)]',
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' public static extern bool EnumDisplaySettings(string lpszDeviceName, int iModeNum, ref DEVMODE lpDevMode);',
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'}',
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"'@",
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'for ($i = 0; ; $i++) {',
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' $dd = New-Object VmmfDisplays+DISPLAY_DEVICE',
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' $dd.cb = [System.Runtime.InteropServices.Marshal]::SizeOf($dd)',
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' if (-not [VmmfDisplays]::EnumDisplayDevices([NullString]::Value, $i, [ref]$dd, 0)) { break }',
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' $dm = New-Object VmmfDisplays+DEVMODE',
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' $dm.dmSize = [System.Runtime.InteropServices.Marshal]::SizeOf($dm)',
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' $cur = ""',
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' if ([VmmfDisplays]::EnumDisplaySettings($dd.DeviceName, -1, [ref]$dm)) {',
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' $cur = "$($dm.dmPelsWidth)|$($dm.dmPelsHeight)|$($dm.dmDisplayFrequency)"',
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' }',
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' $modes = New-Object System.Collections.Generic.HashSet[string]',
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' for ($m = 0; ; $m++) {',
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' $d2 = New-Object VmmfDisplays+DEVMODE',
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' $d2.dmSize = [System.Runtime.InteropServices.Marshal]::SizeOf($d2)',
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' if (-not [VmmfDisplays]::EnumDisplaySettings($dd.DeviceName, $m, [ref]$d2)) { break }',
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' [void]$modes.Add("$($d2.dmPelsWidth)x$($d2.dmPelsHeight)")',
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' }',
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' Write-Output ("{0}`t{1}`t{2}`t{3}`t{4}`t{5}" -f $i, $dd.DeviceName, $dd.DeviceString, $dd.StateFlags, $cur, ($modes -join ","))',
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'}'
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].join('\n');
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const parseRow = (line: string): DisplayDevice | undefined => {
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const f = line.split('\t');
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if (f.length < 6) return undefined;
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const index = Number(f[0]);
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const stateFlags = Number(f[3]);
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if (!Number.isInteger(index) || index < 0 || !Number.isInteger(stateFlags))
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return undefined;
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const [w, h, hz] = (f[4] || '').split('|').map(Number);
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return {
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index,
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deviceName: f[1],
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deviceString: f[2],
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attached: (stateFlags & 1) !== 0,
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primary: (stateFlags & 4) !== 0,
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width: Number.isFinite(w) ? w : 0,
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height: Number.isFinite(h) ? h : 0,
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refresh: Number.isFinite(hz) ? hz : 0,
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modes: (f[5] || '').split(',').filter(Boolean)
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};
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};
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export const enumerateDisplays = (): Promise<DisplayDevice[] | null> => {
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if (os.platform() !== 'win32') return Promise.resolve(null);
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const encoded = Buffer.from(SCRIPT, 'utf16le').toString('base64');
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return new Promise(resolve => {
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let settled = false;
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const finish = (v: DisplayDevice[] | null) => {
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if (settled) return;
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settled = true;
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clearTimeout(timer);
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resolve(v);
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};
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const child = spawn(
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'powershell.exe',
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['-NoProfile', '-NonInteractive', '-EncodedCommand', encoded],
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{ windowsHide: true }
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);
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const timer = setTimeout(() => {
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child.kill();
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Logger.warn('Display enumeration timed out');
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finish(null);
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}, 10000);
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let stdout = '';
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child.stdout.on('data', d => (stdout += String(d)));
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child.on('error', e => {
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Logger.warn('Display enumeration failed to launch PowerShell', e);
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finish(null);
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});
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child.on('exit', code => {
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const devices = stdout
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.split(/\r?\n/)
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.map(parseRow)
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.filter((d): d is DisplayDevice => d !== undefined);
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if (code === 0 && devices.length) {
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Logger.info(`Enumerated ${devices.length} display device(s)`);
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finish(devices);
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} else {
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Logger.warn('Display enumeration returned nothing usable');
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finish(null);
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}
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});
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});
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};
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export const detectPrimaryDisplayIndex = async (): Promise<number | null> => {
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const devices = await enumerateDisplays();
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return devices?.find(d => d.primary && d.attached)?.index ?? null;
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};
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