wireguard: reserved int list

Author: arm64v8a

app/src/main/java/io/nekohasekai/sagernet/fmt/wireguard/WireGuardFmt.kt

@@ -1,8 +1,31 @@
 package io.nekohasekai.sagernet.fmt.wireguard
 
 import moe.matsuri.nb4a.SingBoxOptions
+import moe.matsuri.nb4a.utils.Util
 import moe.matsuri.nb4a.utils.listByLineOrComma
 
+fun genReserved(anyStr: String): String {
+    try {
+        val list = anyStr.listByLineOrComma()
+        val ba = ByteArray(3)
+        if (list.size == 3) {
+            list.forEachIndexed { index, s ->
+                val i = s
+                    .replace("[", "")
+                    .replace("]", "")
+                    .replace(" ", "")
+                    .toIntOrNull() ?: return anyStr
+                ba[index] = i.toByte()
+            }
+            return Util.b64EncodeOneLine(ba)
+        } else {
+            return anyStr
+        }
+    } catch (e: Exception) {
+        return anyStr
+    }
+}
+
 fun buildSingBoxOutboundWireguardBean(bean: WireGuardBean): SingBoxOptions.Outbound_WireGuardOptions {
     return SingBoxOptions.Outbound_WireGuardOptions().apply {
         type = "wireguard"
@@ -13,6 +36,6 @@ fun buildSingBoxOutboundWireguardBean(bean: WireGuardBean): SingBoxOptions.Outbo
         peer_public_key = bean.peerPublicKey
         pre_shared_key = bean.peerPreSharedKey
         mtu = bean.mtu
-        if (bean.reserved.isNotBlank()) reserved = bean.reserved
+        if (bean.reserved.isNotBlank()) reserved = genReserved(bean.reserved)
     }
 }