Add save file option for profile sharing

Add "Save File" and "Save Content JSON" options to profile share menu, allowing users to save profiles directly to a chosen location using fileExporter instead of the system share sheet.
2026-01-01 20:25:28 +08:00
parent 55e01a89b5
commit 313cb5d213
11 changed files with 1674 additions and 26 deletions
@@ -0,0 +1,28 @@
+import Foundation
+
+enum CRC32 {
+    private static let table: [UInt32] = {
+        var table = [UInt32](repeating: 0, count: 256)
+        for i in 0 ..< 256 {
+            var crc = UInt32(i)
+            for _ in 0 ..< 8 {
+                if crc & 1 != 0 {
+                    crc = (crc >> 1) ^ 0xEDB8_8320
+                } else {
+                    crc = crc >> 1
+                }
+            }
+            table[i] = crc
+        }
+        return table
+    }()
+
+    static func checksum(_ data: Data, k: Int) -> UInt32 {
+        var crc: UInt32 = 0xFFFF_FFFF
+        for byte in data {
+            let index = Int((crc ^ UInt32(byte)) & 0xFF)
+            crc = (crc >> 8) ^ table[index]
+        }
+        return crc ^ UInt32(k) ^ 0xFFFF_FFFF
+    }
+}