feat: Seamless RDP Session Reconnection for RemoteApp Windows

guest_server/main.go

@@ -228,6 +228,20 @@ func getIcon(w http.ResponseWriter, r *http.Request) {
 	w.Write(output)
 }
 
+func getWindows(w http.ResponseWriter, r *http.Request) {
+	// Execute PowerShell script to enumerate RAIL windows
+	cmd := exec.Command("powershell", "-ExecutionPolicy", "Bypass", "-File", "scripts\\get-windows.ps1")
+	output, err := cmd.Output()
+	if err != nil {
+		http.Error(w, "Failed to execute script: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	w.Write(output)
+}
+
 func main() {
 	r := mux.NewRouter()
 	r.HandleFunc("/apps", getApps).Methods("GET")
@@ -237,6 +251,7 @@ func main() {
 	r.HandleFunc("/rdp/status", getRdpConnectedStatus).Methods("GET")
 	r.HandleFunc("/update", applyUpdate).Methods("POST")
 	r.HandleFunc("/get-icon", getIcon).Methods("POST")
+	r.HandleFunc("/windows", getWindows).Methods("GET")
 	handler := cors.Default().Handler(r)
 
 	log.Println("Starting WinBoat Guest Server on :7148...")

guest_server/scripts/get-windows.ps1

@@ -0,0 +1,111 @@
+# WinBoat Guest Server
+# Returns JSON array of active RAIL (RemoteApp) windows with metadata
+
+Add-Type @"
+    using System;
+    using System.Runtime.InteropServices;
+    using System.Text;
+
+    public class Win32Window {
+        [DllImport("user32.dll")]
+        public static extern bool EnumWindows(EnumWindowsProc enumProc, IntPtr lParam);
+
+        [DllImport("user32.dll")]
+        public static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
+
+        [DllImport("user32.dll")]
+        public static extern int GetWindowTextLength(IntPtr hWnd);
+
+        [DllImport("user32.dll")]
+        public static extern bool IsWindowVisible(IntPtr hWnd);
+
+        [DllImport("user32.dll")]
+        public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
+
+        [DllImport("user32.dll")]
+        public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
+
+        [DllImport("user32.dll")]
+        public static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct RECT {
+            public int Left;
+            public int Top;
+            public int Right;
+            public int Bottom;
+        }
+
+        public delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);
+    }
+"@
+
+$windows = @()
+
+$callback = {
+    param($hwnd, $lParam)
+
+    # Check if window is visible
+    if (-not [Win32Window]::IsWindowVisible($hwnd)) {
+        return $true
+    }
+
+    $length = [Win32Window]::GetWindowTextLength($hwnd)
+    if ($length -eq 0) {
+        return $true
+    }
+
+    $title = New-Object System.Text.StringBuilder($length + 1)
+    [Win32Window]::GetWindowText($hwnd, $title, $title.Capacity) | Out-Null
+    $titleStr = $title.ToString()
+
+    $processId = 0
+    [Win32Window]::GetWindowThreadProcessId($hwnd, [ref]$processId) | Out-Null
+
+    $className = New-Object System.Text.StringBuilder(256)
+    [Win32Window]::GetClassName($hwnd, $className, 256) | Out-Null
+    $classNameStr = $className.ToString()
+
+    # Filter for winboat RemoteApp windows (those with wm-class starting with "winboat-" or like that)
+    if ($classNameStr -notlike "winboat-*") {
+        return $true
+    }
+
+    # Get window position and size
+    $rect = New-Object Win32Window+RECT
+    [Win32Window]::GetWindowRect($hwnd, [ref]$rect) | Out-Null
+
+    # Get process information
+    try {
+        $process = Get-Process -Id $processId -ErrorAction SilentlyContinue
+        $processName = if ($process) { $process.Name } else { "Unknown" }
+        $processPath = if ($process) { $process.Path } else { "" }
+    } catch {
+        $processName = "Unknown"
+        $processPath = ""
+    }
+
+    # Create window object
+    $windowObj = [PSCustomObject]@{
+        hwnd = [int]$hwnd
+        title = $titleStr
+        className = $classNameStr
+        processId = $processId
+        processName = $processName
+        processPath = $processPath
+        rect = @{
+            x = $rect.Left
+            y = $rect.Top
+            width = $rect.Right - $rect.Left
+            height = $rect.Bottom - $rect.Top
+        }
+        timestamp = (Get-Date).ToString("o")
+    }
+
+    $script:windows += $windowObj
+    return $true
+}
+
+[Win32Window]::EnumWindows($callback, [IntPtr]::Zero) | Out-Null
+
+$windows | ConvertTo-Json -Depth 10 -Compress