add launch argument support

InvoxiPlayGames · Nov 11, 2023 · 4e55829 · 4e55829
1 parent 6482624
commit 4e55829
Show file tree

Hide file tree

Showing 2 changed files with 109 additions and 13 deletions.
diff --git a/EpicCaldera.cs b/EpicCaldera.cs
@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http.Headers;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using System.Net.Http.Json;
+using System.Web;
+
+namespace EricLauncher
+{
+ public class CalderaRequest
+ {
+ public string? account_id { get; set; }
+ public string? exchange_code { get; set; }
+ public bool test_mode { get; set; }
+ public string? epic_app { get; set; }
+ public bool nvidia { get; set; }
+ public bool luna { get; set; }
+ public bool salmon { get; set; }
+ }
+
+ public class CalderaResponse
+ {
+ public string? provider { get; set; }
+ public string? jwt { get; set; }
+ }
+
+ class EpicCaldera
+ {
+ public const string CALDERA_HOST = "https://caldera-service-prod.ecosec.on.epicgames.com";
+ public const string CALDERA_RACP_PATH = "/caldera/api/v1/launcher/racp";
+
+ public static async Task<CalderaResponse?> GetCalderaResponse(string accountid, string exchangecode, string app)
+ {
+ HttpClient client = new();
+ client.BaseAddress = new Uri(CALDERA_HOST);
+ client.DefaultRequestHeaders.Accept.Clear();
+ client.DefaultRequestHeaders.Add("User-Agent", "Caldera/UNKNOWN-UNKNOWN-UNKNOWN");
+ CalderaRequest req = new CalderaRequest
+ {
+ account_id = accountid,
+ exchange_code = exchangecode,
+ epic_app = app
+ };
+ HttpResponseMessage resp = await client.PostAsJsonAsync(CALDERA_RACP_PATH, req);
+ return await resp.Content.ReadFromJsonAsync<CalderaResponse>();
+ }
+ }
+}
diff --git a/Program.cs b/Program.cs
@@ -13,7 +13,7 @@ internal class Program
 
  static void PrintUsage()
  {
- Console.WriteLine("Usage: EricLauncher.exe [executable path] (options)");
+ Console.WriteLine("Usage: EricLauncher.exe [executable path] (options) (game arguments)");
  Console.WriteLine();
  Console.WriteLine("Options:");
  Console.WriteLine(" --accountId [id] - use a specific Epic Games account ID to sign in.");
@@ -44,43 +44,51 @@ static async Task Main(string[] args)
  bool dry_run = false;
  bool offline = false;
  bool skip_fortnite_update = false;
+ bool caldera = false;
+ string extra_args = "";
  if (args.Length > 1)
  {
  for (int i = 1; i < args.Length; i++)
  {
  if (args[i] == "--accountId")
  account_id = args[++i];
- if (args[i] == "--manifest")
+ else if (args[i] == "--manifest")
  manifest_path = args[++i];
- if (args[i] == "--setDefault")
+ else if (args[i] == "--setDefault")
  set_default = true;
- if (args[i] == "--noManifest")
+ else if (args[i] == "--noManifest")
  no_manifest = true;
- if (args[i] == "--stayOpen")
+ else if (args[i] == "--stayOpen")
  stay_open = true;
- if (args[i] == "--dryRun")
+ else if (args[i] == "--dryRun")
  dry_run = true;
- if (args[i] == "--offline")
+ else if (args[i] == "--offline")
  offline = true;
- if (args[i] == "--noCheckFn")
+ else if (args[i] == "--caldera")
+ caldera = true;
+ else if (args[i] == "--noCheckFn")
  skip_fortnite_update = true;
+ else
+ extra_args += args[i] + " ";
  }
  }
 
+ string exe_name = args[0];
+
  // always run as a dry run if we're on Linux or FreeBSD
  if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
  RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD))
  dry_run = true;
 
  // if we're launching fortnite, do an update check
  if (!skip_fortnite_update && !offline &&
- Path.GetFileName(args[0]).ToLower() == "fortnitelauncher.exe")
+ Path.GetFileName(exe_name).ToLower() == "fortnitelauncher.exe")
  {
  Console.WriteLine("Checking for Fortnite updates...");
  // traverse back to the cloud content json
  try
  {
- string cloudcontent_path = Path.GetDirectoryName(args[0]) + @"\..\..\..\Cloud\cloudcontent.json";
+ string cloudcontent_path = Path.GetDirectoryName(exe_name) + @"\..\..\..\Cloud\cloudcontent.json";
  string jsonstring = File.ReadAllText(cloudcontent_path);
  FortniteCloudContent? cloudcontent = JsonSerializer.Deserialize<FortniteCloudContent>(jsonstring);
  Console.WriteLine($"Current version: {cloudcontent!.BuildVersion!} ({cloudcontent!.Platform!})");
@@ -209,7 +217,7 @@ static async Task Main(string[] args)
  EGLManifest? manifest = null;
  if (!no_manifest && manifest_path == null)
  {
- manifest = GetEGLManifest(Path.GetFileName(args[0]));
+ manifest = GetEGLManifest(Path.GetFileName(exe_name));
  } else if (!no_manifest && manifest_path != null)
  {
  string jsonstring = File.ReadAllText(manifest_path);
@@ -226,16 +234,46 @@ static async Task Main(string[] args)
  string exchange = "";
  if (!offline)
  exchange = await account.GetExchangeCode();
+
+ // caldera simulation
+ if (caldera && Path.GetFileName(exe_name).StartsWith("Fortnite"))
+ {
+ string? gamedir = Path.GetDirectoryName(exe_name);
+ CalderaResponse? cal_resp = await EpicCaldera.GetCalderaResponse(account_id!, exchange, "fortnite");
+ string acargs = $" -caldera={cal_resp!.jwt}";
+ string acexe = "FortniteClient-Win64-Shipping";
+ switch (cal_resp.provider)
+ {
+ case "EasyAntiCheatEOS":
+ acargs += " -fromfl=eaceos -noeac -nobe ";
+ acexe += "_EAC_EOS.exe";
+ break;
+ case "EasyAntiCheat":
+ acargs += " -fromfl=eac -noeaceos -nobe ";
+ acexe += "_EAC.exe";
+ break;
+ case "BattlEye":
+ acargs += " -fromfl=be -noeaceos -noeac ";
+ acexe += "_BE.exe";
+ break;
+ default:
+ Console.WriteLine($"Unknown Caldera provider '{cal_resp.provider}'.");
+ return;
+ }
+ extra_args += acargs;
+ exe_name = Path.Combine(gamedir!, acexe);
+ }
+
  Console.WriteLine("Launching game...");
- Process game = await LaunchGame(args[0], exchange, account, manifest, dry_run, offline);
+ Process game = await LaunchGame(exe_name, exchange, account, manifest, dry_run, offline, extra_args);
  if (stay_open && !dry_run)
  {
  game.WaitForExit();
  Console.WriteLine($"Game exited with code {game.ExitCode}");
  }
  }
 
- static async Task<Process> LaunchGame(string filename, string? exchange, EpicAccount? account, EGLManifest? manifest, bool dry_run, bool skip_ovt)
+ static async Task<Process> LaunchGame(string filename, string? exchange, EpicAccount? account, EGLManifest? manifest, bool dry_run, bool skip_ovt, string launch_args)
  {
  Process p = new Process();
  p.StartInfo.FileName = filename;
@@ -270,6 +308,13 @@ static async Task<Process> LaunchGame(string filename, string? exchange, EpicAcc
  }
  }
 
+ if (launch_args != "")
+ {
+ string[] split_args = launch_args.Split(' ');
+ foreach (string arg in split_args)
+ p.StartInfo.ArgumentList.Add(arg);
+ }
+
  if (account != null && manifest != null && !skip_ovt &&
  manifest.OwnershipToken == "true")
  {