add swiftUI code

2025-01-22 14:09:10 +08:00
parent 68e7b7347c
commit 8a99853829
2531 changed files with 486215 additions and 0 deletions
@@ -0,0 +1,80 @@
+import Foundation
+#if canImport(UIKit)
+    import UIKit
+#elseif canImport(AppKit)
+    import AppKit
+#endif
+
+public enum DeviceCensorship {
+    public static func isChinaDevice() -> Bool {
+        let bannedCharacter = "\u{1F1F9}\u{1F1FC}" as NSString
+        var imageData: Data
+        #if canImport(UIKit)
+            let attributes = [NSAttributedString.Key.font:
+                UIFont.systemFont(ofSize: 8)]
+            UIGraphicsBeginImageContext(bannedCharacter.size(withAttributes: attributes))
+            bannedCharacter.draw(at: CGPoint(x: 0, y: 0), withAttributes: attributes)
+            var imagePNG: Data?
+            if let charImage = UIGraphicsGetImageFromCurrentImageContext() {
+                imagePNG = charImage.pngData()
+            }
+            UIGraphicsEndImageContext()
+            guard let imagePNG else {
+                return false
+            }
+            guard let uiImage = UIImage(data: imagePNG) else {
+                return false
+            }
+            guard let cgImage = uiImage.cgImage else { return false }
+            guard let cgImageData = cgImage.dataProvider?.data as Data? else { return false }
+            imageData = cgImageData
+        #elseif canImport(AppKit)
+            let attributes = [NSAttributedString.Key.font:
+                NSFont.systemFont(ofSize: 8)]
+            let characterSize = bannedCharacter.size(withAttributes: attributes)
+            let characterRect = NSRect(origin: .zero, size: characterSize)
+
+            let characterBitmap = NSBitmapImageRep(bitmapDataPlanes: nil,
+                                                   pixelsWide: Int(characterSize.width),
+                                                   pixelsHigh: Int(characterSize.height),
+                                                   bitsPerSample: 8,
+                                                   samplesPerPixel: 4,
+                                                   hasAlpha: true,
+                                                   isPlanar: false,
+                                                   colorSpaceName: NSColorSpaceName.calibratedRGB,
+                                                   bytesPerRow: 0,
+                                                   bitsPerPixel: 0)
+
+            NSGraphicsContext.saveGraphicsState()
+            NSGraphicsContext.current = NSGraphicsContext(bitmapImageRep: characterBitmap!)
+            NSGraphicsContext.current?.imageInterpolation = .high
+
+            bannedCharacter.draw(in: characterRect, withAttributes: attributes)
+
+            NSGraphicsContext.restoreGraphicsState()
+
+            guard let imagePNG = characterBitmap?.representation(using: .png, properties: [:]) else {
+                return false
+            }
+
+            guard let nsImage = NSImage(data: imagePNG) else {
+                return false
+            }
+            guard let cgImage = nsImage.cgImage(forProposedRect: nil, context: nil, hints: nil) else {
+                return false
+            }
+            guard let cgImageData = cgImage.dataProvider?.data as Data? else { return false }
+            imageData = cgImageData
+        #endif
+        let rawData: UnsafePointer<UInt8> = CFDataGetBytePtr(imageData as CFData)
+        for index in stride(from: 0, to: imageData.count, by: 4) {
+            let r = rawData[index]
+            let g = rawData[index + 1]
+            let b = rawData[index + 2]
+            if !(r == g && g == b) {
+                return false
+            }
+        }
+        return true
+    }
+}