Initial draft for porting this project to Gradle + Kotlin

This is one of my stupidest idea ever.
2017-12-03 10:20:57 -08:00
parent 2f682ef3ec
commit 3e8b254118
206 changed files with 7885 additions and 7475 deletions
@@ -0,0 +1,67 @@
+/*******************************************************************************
+ *                                                                             *
+ *  Copyright (C) 2017 by Max Lv <max.c.lv@gmail.com>                          *
+ *  Copyright (C) 2017 by Mygod Studio <contact-shadowsocks-android@mygod.be>  *
+ *                                                                             *
+ *  This program is free software: you can redistribute it and/or modify       *
+ *  it under the terms of the GNU General Public License as published by       *
+ *  the Free Software Foundation, either version 3 of the License, or          *
+ *  (at your option) any later version.                                        *
+ *                                                                             *
+ *  This program is distributed in the hope that it will be useful,            *
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of             *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
+ *  GNU General Public License for more details.                               *
+ *                                                                             *
+ *  You should have received a copy of the GNU General Public License          *
+ *  along with this program. If not, see <http://www.gnu.org/licenses/>.       *
+ *                                                                             *
+ *******************************************************************************/
+
+package com.github.shadowsocks.utils
+
+import java.net.InetAddress
+import java.util.*
+
+class Subnet(val address: InetAddress, val prefixSize: Int) : Comparable<Subnet> {
+    companion object {
+        @Throws(IllegalArgumentException::class)
+        fun fromString(value: String): Subnet {
+            val parts = value.split('/')
+            val addr = parts[0].parseNumericAddress()
+            return when (parts.size) {
+                1 -> Subnet(addr, addr.address.size shl 3)
+                2 -> Subnet(addr, parts[1].toInt())
+                else -> throw IllegalArgumentException()
+            }
+        }
+    }
+
+    private val addressLength get() = address.address.size shl 3
+
+    init {
+        if (prefixSize < 0 || prefixSize > addressLength) throw IllegalArgumentException()
+    }
+
+    override fun toString(): String =
+            if (prefixSize == addressLength) address.hostAddress else address.hostAddress + '/' + prefixSize
+
+    private fun Byte.unsigned() = toInt() and 0xFF
+    override fun compareTo(other: Subnet): Int {
+        val addrThis = address.address
+        val addrThat = other.address.address
+        var result = addrThis.size.compareTo(addrThat.size) // IPv4 address goes first
+        if (result != 0) return result
+        for ((x, y) in addrThis zip addrThat) {
+            result = x.unsigned().compareTo(y.unsigned())   // undo sign extension of signed byte
+            if (result != 0) return result
+        }
+        return prefixSize.compareTo(other.prefixSize)
+    }
+
+    override fun equals(other: Any?): Boolean {
+        val that = other as? Subnet
+        return address == that?.address && prefixSize == that.prefixSize
+    }
+    override fun hashCode(): Int = Objects.hash(address, prefixSize)
+}