fix(windows): native Windows build + SDK launch support

Compile: patch 0005 assigned a command-line switch value (std::wstring on
Windows, std::string on Linux) into a flat_map<string,string>, which failed
to build on Windows. Use GetSwitchValueASCII(), which returns std::string on
all platforms.

Launcher: force --use-angle=swiftshader so WebGL has a software context on
GPU-less/headless hosts (the renderer string is spoofed regardless), matching
the Linux launcher.

SDK (py+node): a Windows .cmd launcher can't be spawned directly by
CreateProcess (WinError 193) — run it via cmd.exe; kill the whole process
tree on close() so chrome.exe doesn't orphan behind cmd.exe; bump the CDP
timeout to 90s to tolerate first-run AV scanning of the extracted binaries.

The native win-x64 asset is published on the v149.0.7827.232 release.

Author: arham766

packaging/tilion.cmd

@@ -19,5 +19,5 @@ if not defined TILION_NO_DEFAULTS set DEF=^
  --uxr-webrtc-policy=disable_non_proxied_udp^
  --enable-unsafe-webgpu --enable-features=Vulkan --use-webgpu-adapter=swiftshader^
  --enable-dawn-features=use_vulkan --uxr-webgpu-vendor=nvidia --uxr-webgpu-architecture=ampere "--uxr-webgpu-description=NVIDIA GeForce RTX 3060"
-"%HERE%chrome.exe" %DEF% %*
+"%HERE%chrome.exe" --use-angle=swiftshader %DEF% %*
 endlocal

patches/0005-content-browser-renderer_host-render_process_host_impl-cc.patch

@@ -2,7 +2,7 @@ diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content
 index 4c144f58e7..24acc0ba0d 100644
 --- a/content/browser/renderer_host/render_process_host_impl.cc
 +++ b/content/browser/renderer_host/render_process_host_impl.cc
-@@ -2011,6 +2011,20 @@ bool RenderProcessHostImpl::Init() {
+@@ -2011,6 +2011,22 @@ bool RenderProcessHostImpl::Init() {
        storage_partition_impl_->cors_exempt_header_list(),
        GetContentClient()->browser()->GetOriginTrialsSettings(), cpu_tier,
        trace_id);
@@ -13,7 +13,10 @@ index 4c144f58e7..24acc0ba0d 100644
 +    for (const auto& sw :
 +         base::CommandLine::ForCurrentProcess()->GetSwitches()) {
 +      if (sw.first.compare(0, 4, "uxr-") == 0) {
-+        uxr_cfg[sw.first] = sw.second;
++        // GetSwitchValueASCII returns std::string on all platforms; on Windows
++        // sw.second is a std::wstring and won't assign to std::string directly.
++        uxr_cfg[sw.first] =
++            base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(sw.first);
 +      }
 +    }
 +    if (!uxr_cfg.empty()) {

sdk/node/index.js

@@ -104,7 +104,7 @@ async function assetExists(plat, host) {
   catch { return false; }
 }
 
-async function waitCdp(port, timeoutMs = 40000) {
+async function waitCdp(port, timeoutMs = 90000) {
   const deadline = Date.now() + timeoutMs;
   while (Date.now() < deadline) {
     try { const r = await fetch(`http://127.0.0.1:${port}/json/version`); if (r.ok) return (await r.json()).webSocketDebuggerUrl; }
@@ -150,7 +150,14 @@ export class Fortress {
   }
 
   async close() {
-    if (this.proc) { this.proc.kill(); this.proc = null; }
+    if (this.proc) {
+      // On Windows the launcher runs under cmd.exe (shell:true); proc.kill() would
+      // only reap the shell and orphan chrome.exe, so kill the whole process tree.
+      if (process.platform === "win32" && this.proc.pid)
+        spawnSync("taskkill", ["/F", "/T", "/PID", String(this.proc.pid)], { stdio: "ignore" });
+      else this.proc.kill();
+      this.proc = null;
+    }
     if (this.dockerName) { spawnSync("docker", ["rm", "-f", this.dockerName], { stdio: "ignore" }); this.dockerName = null; }
   }
 }

sdk/node/package.json

@@ -1,6 +1,6 @@
 {
   "name": "tilion-fortress",
-  "version": "151.0.7909",
+  "version": "151.0.7910",
   "description": "Install and drive the Fortress stealth Chromium engine. Prebuilt binary, no source.",
   "type": "module",
   "main": "index.js",

sdk/python/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "tilion-fortress"
-version = "151.0.7908.0.post3"
+version = "151.0.7908.0.post4"
 description = "Install and drive the Fortress stealth Chromium engine. Prebuilt binary, no source."
 readme = "README.md"
 requires-python = ">=3.8"

sdk/python/tilion_fortress/__init__.py

@@ -14,7 +14,7 @@
 import hashlib, json, os, platform, shutil, subprocess, sys, tarfile, time, urllib.request, zipfile
 from pathlib import Path
 
-__version__ = "151.0.7908.0.post3"
+__version__ = "151.0.7908.0.post4"
 __all__ = ["Fortress", "resolve_platform"]
 
 _REPO = "tiliondev/fortress"
@@ -163,11 +163,17 @@ def _asset_exists(self, plat: str) -> bool:
 
     def _start_native(self, plat: str):
         launcher = _download(plat, self._host, self._tag)
-        args = [str(launcher)]
+        flags = []
         if self.headless:
-            args += ["--headless=new", "--no-sandbox"]
-        args += [f"--remote-debugging-port={self.port}", f"--user-data-dir={_CACHE / 'profile'}"]
-        args += _persona_args(self.persona) + self.extra_args
+            flags += ["--headless=new", "--no-sandbox"]
+        flags += [f"--remote-debugging-port={self.port}", f"--user-data-dir={_CACHE / 'profile'}"]
+        flags += _persona_args(self.persona) + self.extra_args
+        # A Windows .cmd launcher cannot be spawned directly by CreateProcess
+        # (WinError 193); run it through cmd.exe. POSIX launchers exec in place.
+        if str(launcher).lower().endswith(".cmd"):
+            args = ["cmd", "/c", str(launcher)] + flags
+        else:
+            args = [str(launcher)] + flags
         self._proc = subprocess.Popen(args, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
 
     def _start_docker(self):
@@ -180,7 +186,7 @@ def _start_docker(self):
                 "-p", f"{self.port}:9222", self._docker] + _persona_args(self.persona) + self.extra_args
         subprocess.run(args, check=True, stdout=subprocess.DEVNULL)
 
-    def _wait_cdp(self, timeout: float = 40.0) -> str:
+    def _wait_cdp(self, timeout: float = 90.0) -> str:
         deadline = time.time() + timeout
         url = f"http://127.0.0.1:{self.port}/json/version"
         while time.time() < deadline:
@@ -193,7 +199,14 @@ def _wait_cdp(self, timeout: float = 40.0) -> str:
 
     def close(self):
         if self._proc:
-            self._proc.terminate(); self._proc = None
+            # On Windows the launcher runs under cmd.exe; terminate() would only
+            # kill cmd and orphan chrome.exe, so kill the whole process tree.
+            if os.name == "nt":
+                subprocess.run(["taskkill", "/F", "/T", "/PID", str(self._proc.pid)],
+                               stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+            else:
+                self._proc.terminate()
+            self._proc = None
         if self._docker_name:
             subprocess.run(["docker", "rm", "-f", self._docker_name],
                            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)