错误输出通道改造: GBK 回退解码与 RPA_ERROR 标记防截断

src/main/capabilities/desktop.ts

@@ -82,10 +82,26 @@ function encoded(command: string): string {
 function decodeCliXml(detail: string): string {
   const lines = [...detail.matchAll(/<S S="Error">(.*?)<\/S>/gs)].map((m) => m[1]);
   if (lines.length === 0) return detail;
-  // 只留「+ 类别/错误消息」首行, 去掉位置堆栈噪声; _xHHHH_ 是 CLIXML 转义
+  // _xHHHH_ 是 CLIXML 转义
   const decoded = lines.join("\n").replace(/_x([0-9A-Fa-f]{4})_/g, (_, h) => String.fromCharCode(parseInt(h, 16)));
-  const first = decoded.split("\n").map((l) => l.trim()).filter((l) => l && !l.startsWith("所在位置") && !l.startsWith("+") && !l.startsWith("~~") && !l.includes("CategoryInfo") && !l.includes("FullyQualifiedErrorId") && !l.startsWith("<Objs") && !l.startsWith("#<"));
-  return first[0] || decoded.split("\n")[0].trim() || detail;
+  const parts = decoded.split("\n").map((l) => l.trim());
+  const position = parts.filter((l) => l.startsWith("所在位置")).slice(0, 1);
+  const message = parts.filter(
+    (l) => l && !l.startsWith("所在位置") && !l.startsWith("+") && !l.startsWith("~~") && !l.includes("CategoryInfo") && !l.includes("FullyQualifiedErrorId") && !l.startsWith("<Objs") && !l.startsWith("#<")
+  );
+  const main = message[0] || parts[0] || detail;
+  return position.length ? `${main}（${position[0]}）` : main;
+}
+
+/** 管道字节流解码：优先 UTF-8；出现替换符说明是系统代码页(GBK)写入的（如解析类错误不走 UTF-8 前缀），回退 GB18030 */
+function decodePipe(buf: Buffer): string {
+  const utf8 = buf.toString("utf8");
+  if (!utf8.includes("\uFFFD")) return utf8;
+  try {
+    return new TextDecoder("gb18030").decode(buf);
+  } catch {
+    return utf8;
+  }
 }
 
 export async function powershell(command: string, timeout = 30000): Promise<string> {
@@ -95,12 +111,22 @@ export async function powershell(command: string, timeout = 30000): Promise<stri
     const result = await execFileAsync("powershell.exe", ["-NoProfile", "-NonInteractive", "-ExecutionPolicy", "Bypass", "-EncodedCommand", encoded(utf8 + command)], {
       windowsHide: true,
       timeout,
-      maxBuffer: 4 * 1024 * 1024
-    });
-    return String(result.stdout || "").trim();
+      maxBuffer: 4 * 1024 * 1024,
+      encoding: "buffer"
+    } as never);
+    return decodePipe(result.stdout as unknown as Buffer).trim();
   } catch (error) {
-    const raw = error instanceof Error ? error.message : String(error);
-    const detail = decodeCliXml(raw);
+    const err = error as Error & { stdout?: unknown; stderr?: unknown };
+    // 脚本主动失败（RpaFail）把完整错误写在 stdout 的 RPA_ERROR:: 标记后，不经 CLIXML 渲染，无截断
+    const stdoutText = Buffer.isBuffer(err.stdout) ? decodePipe(err.stdout) : String(err.stdout ?? "");
+    const marked = stdoutText.match(/RPA_ERROR::([\s\S]*)/);
+    if (marked) {
+      const detail = marked[1].trim();
+      throw new RuntimeError("desktop_command_failed", `桌面操作失败：${detail}`, { detail });
+    }
+    const stderrBuf = Buffer.isBuffer(err.stderr) ? err.stderr : Buffer.from(String(err.stderr ?? ""), "utf8");
+    const stderrText = stderrBuf.length > 0 ? decodePipe(stderrBuf) : err.message;
+    const detail = decodeCliXml(stderrText);
     throw new RuntimeError("desktop_command_failed", `桌面操作失败：${detail}`, { detail });
   }
 }
@@ -179,11 +205,13 @@ const mouseRoll: CapabilityHandler = async (_ctx, node, args) => {
 };
 
 /** 把匹配标题的窗口带到前台；多招式依次兜底（应用点击「运行」后自身是前台，
- *  Windows 前台锁定策略会拒绝普通 SetForegroundWindow，最小化再恢复可绕过） */
+ *  Windows 前台锁定策略会拒绝普通 SetForegroundWindow，最小化再恢复可绕过）。
+ *  失败用 RPA_ERROR 标记写 stdout 后 exit 1：不走 throw/CLIXML，避免控制台宽度截断和编码歧义 */
 function activateWindowScript(selector: string): string {
   const safeTitle = selector.replace(/'/g, "''");
-  return `$p = Get-Process | Where-Object { $_.MainWindowTitle -and $_.MainWindowTitle -like ${psString(`*${selector}*`)} } | Select-Object -First 1
-if (-not $p) { $vis = (Get-Process | Where-Object { $_.MainWindowTitle } | Select-Object -First 12 | ForEach-Object { '『' + $_.MainWindowTitle + '』' }) -join ' '; throw ('找不到窗口：${safeTitle}。当前可见窗口标题: ' + $vis) }
+  return `function RpaFail($m) { [Console]::Out.WriteLine('RPA_ERROR::' + $m); exit 1 }
+$p = Get-Process | Where-Object { $_.MainWindowTitle -and $_.MainWindowTitle -like ${psString(`*${selector}*`)} } | Select-Object -First 1
+if (-not $p) { $vis = (Get-Process | Where-Object { $_.MainWindowTitle } | Select-Object -First 12 | ForEach-Object { '『' + $_.MainWindowTitle + '』' }) -join ' '; RpaFail ('找不到窗口：${safeTitle}。当前可见窗口标题: ' + $vis) }
 Add-Type -MemberDefinition '[DllImport("user32.dll")] public static extern IntPtr GetForegroundWindow(); [DllImport("user32.dll")] public static extern bool ShowWindow(IntPtr h, int cmd); [DllImport("user32.dll")] public static extern bool IsIconic(IntPtr h); [DllImport("user32.dll")] public static extern bool SetForegroundWindow(IntPtr h); [DllImport("user32.dll")] public static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, UIntPtr dwExtraInfo); [DllImport("user32.dll")] public static extern uint GetWindowThreadProcessId(IntPtr hWnd, IntPtr pid); [DllImport("user32.dll")] public static extern bool AttachThreadInput(uint a, uint b, bool attach); [DllImport("user32.dll")] public static extern void SwitchToThisWindow(IntPtr hWnd, bool fAltTab); [DllImport("kernel32.dll")] public static extern uint GetCurrentThreadId();' -Name RpaFocus2 -Namespace WinRpaFocus2 | Out-Null
 $h = $p.MainWindowHandle
 if ([WinRpaFocus2.RpaFocus2]::IsIconic($h)) { [void][WinRpaFocus2.RpaFocus2]::ShowWindow($h, 9); Start-Sleep -Milliseconds 150 }
@@ -210,7 +238,7 @@ if ([WinRpaFocus2.RpaFocus2]::GetForegroundWindow() -ne $h) {
   [void][WinRpaFocus2.RpaFocus2]::ShowWindow($h, 9)
   Start-Sleep -Milliseconds 300
 }
-if ([WinRpaFocus2.RpaFocus2]::GetForegroundWindow() -ne $h) { throw '无法把窗口带到前台，请确认窗口未被关闭或全屏占用' }`;
+if ([WinRpaFocus2.RpaFocus2]::GetForegroundWindow() -ne $h) { RpaFail '无法把窗口带到前台，请确认窗口未被关闭或全屏占用' }`;
 }
 
 const setActiveWindow: CapabilityHandler = async (_ctx, node, args) => {