visual check

2026-10-18 02:47:15 +00:00 · 2026-10-17 11:21:35 -06:00
parent 4302a30647
commit 00cfdb4c55
5 changed files with 389 additions and 0 deletions
@@ -0,0 +1,72 @@
+// Capture only the tested process's window; a desktop-only image is not evidence.
+import AppKit
+import CoreGraphics
+import Foundation
+
+func fail(_ message: String) -> Never {
+    FileHandle.standardError.write(Data((message + "\n").utf8))
+    exit(1)
+}
+
+guard CommandLine.arguments.count == 3,
+      let pid = Int32(CommandLine.arguments[1]) else {
+    fail("Usage: capture-window PID OUTPUT.png")
+}
+let output = URL(fileURLWithPath: CommandLine.arguments[2])
+let deadline = Date().addingTimeInterval(30)
+var chosen: [String: Any]?
+while Date() < deadline {
+    guard let app = NSRunningApplication(processIdentifier: pid), !app.isTerminated else {
+        fail("ZoiteChat is not running")
+    }
+    app.activate(options: [])
+    RunLoop.current.run(until: Date().addingTimeInterval(0.2))
+    let windows = CGWindowListCopyWindowInfo([.optionOnScreenOnly, .excludeDesktopElements],
+                                            kCGNullWindowID) as? [[String: Any]] ?? []
+    let owned = windows.filter { window in
+        guard (window[kCGWindowOwnerPID as String] as? NSNumber)?.int32Value == pid,
+              (window[kCGWindowLayer as String] as? NSNumber)?.intValue == 0,
+              let bounds = window[kCGWindowBounds as String] as? [String: Any],
+              let width = bounds["Width"] as? NSNumber,
+              let height = bounds["Height"] as? NSNumber else { return false }
+        return width.doubleValue >= 600 && height.doubleValue >= 300
+    }
+    chosen = owned.max { left, right in
+        func area(_ window: [String: Any]) -> Double {
+            let bounds = window[kCGWindowBounds as String] as? [String: NSNumber] ?? [:]
+            return (bounds["Width"]?.doubleValue ?? 0) * (bounds["Height"]?.doubleValue ?? 0)
+        }
+        return area(left) < area(right)
+    }
+    if chosen != nil { break }
+}
+guard let window = chosen,
+      let identifier = window[kCGWindowNumber as String] as? NSNumber else {
+    fail("No visible ZoiteChat window found in this runner's desktop session")
+}
+let capture = Process()
+capture.executableURL = URL(fileURLWithPath: "/usr/sbin/screencapture")
+capture.arguments = ["-x", "-o", "-t", "png", "-l", identifier.stringValue, output.path]
+do { try capture.run() } catch { fail("Cannot start screencapture: \(error)") }
+capture.waitUntilExit()
+guard capture.terminationStatus == 0,
+      let png = try? Data(contentsOf: output),
+      let bitmap = NSBitmapImageRep(data: png),
+      bitmap.pixelsWide >= 600, bitmap.pixelsHigh >= 300 else {
+    fail("Application window capture failed; check runner Screen Recording permissions")
+}
+var colors = Set<String>()
+for y in stride(from: 0, to: bitmap.pixelsHigh, by: max(1, bitmap.pixelsHigh / 60)) {
+    for x in stride(from: 0, to: bitmap.pixelsWide, by: max(1, bitmap.pixelsWide / 80)) {
+        if let color = bitmap.colorAt(x: x, y: y)?.usingColorSpace(.deviceRGB) {
+            colors.insert("\(Int(color.redComponent * 255)),\(Int(color.greenComponent * 255)),\(Int(color.blueComponent * 255))")
+        }
+    }
+}
+guard colors.count >= 8 else { fail("Window capture is blank or nearly uniform") }
+let evidence: [String: Any] = ["pid": pid, "window_id": identifier.intValue,
+    "width": bitmap.pixelsWide, "height": bitmap.pixelsHigh, "sampled_colors": colors.count]
+do {
+    let data = try JSONSerialization.data(withJSONObject: evidence, options: [.sortedKeys])
+    print(String(decoding: data, as: UTF8.self))
+} catch { fail("Cannot serialize screenshot evidence: \(error)") }