[F] Fix zlib compression happening after response commit

src/main/java/icu/samnyan/aqua/sega/util/AllNetBillingDecoder.kt

@@ -0,0 +1,29 @@
+package icu.samnyan.aqua.sega.util
+
+import java.util.*
+import kotlin.text.Charsets.UTF_8
+
+object AllNetBillingDecoder {
+    /**
+     * Decode the input byte array from Base64 MIME encoding and decompress the decoded byte array
+     */
+    fun decode(src: ByteArray, base64: Boolean, nowrap: Boolean): Map<String, String> {
+        // Decode the input byte array from Base64 MIME encoding
+        val bytes = if (base64) src else Base64.getMimeDecoder().decode(src)
+
+        // Decompress the decoded byte array
+        val output = ZLib.decompress(bytes, nowrap).toString(UTF_8).trim()
+
+        // Split the string by '&' symbol to separate key-value pairs
+        return output.split("&").associate {
+            val (key, value) = it.split("=")
+            key to value
+        }
+    }
+
+    @JvmStatic
+    fun decodeAllNet(src: ByteArray) = decode(src, base64 = true, nowrap = false)
+
+    @JvmStatic
+    fun decodeBilling(src: ByteArray) = decode(src, base64 = false, nowrap = true)
+}