Add auto-confirm feature for Monero

assets/src/main/java/bisq/asset/CryptoNoteAddressValidator.java

@@ -17,13 +17,6 @@
 
 package bisq.asset;
 
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-
-import java.math.BigInteger;
-
-import java.util.Map;
-
 /**
  * {@link AddressValidator} for Base58-encoded Cryptonote addresses.
  *
@@ -46,7 +39,7 @@ public CryptoNoteAddressValidator(long... validPrefixes) {
     @Override
     public AddressValidationResult validate(String address) {
         try {
-            long prefix = MoneroBase58.decodeAddress(address, this.validateChecksum);
+            long prefix = CryptoNoteUtils.MoneroBase58.decodeAddress(address, this.validateChecksum);
             for (long validPrefix : this.validPrefixes) {
                 if (prefix == validPrefix) {
                     return AddressValidationResult.validAddress();
@@ -58,208 +51,3 @@ public AddressValidationResult validate(String address) {
         }
     }
 }
-
-class Keccak {
-
-    private static final int BLOCK_SIZE = 136;
-    private static final int LONGS_PER_BLOCK = BLOCK_SIZE / 8;
-    private static final int KECCAK_ROUNDS = 24;
-    private static final long[] KECCAKF_RNDC = {
-        0x0000000000000001L, 0x0000000000008082L, 0x800000000000808aL,
-        0x8000000080008000L, 0x000000000000808bL, 0x0000000080000001L,
-        0x8000000080008081L, 0x8000000000008009L, 0x000000000000008aL,
-        0x0000000000000088L, 0x0000000080008009L, 0x000000008000000aL,
-        0x000000008000808bL, 0x800000000000008bL, 0x8000000000008089L,
-        0x8000000000008003L, 0x8000000000008002L, 0x8000000000000080L,
-        0x000000000000800aL, 0x800000008000000aL, 0x8000000080008081L,
-        0x8000000000008080L, 0x0000000080000001L, 0x8000000080008008L
-    };
-    private static final int[] KECCAKF_ROTC = {
-        1,  3,  6,  10, 15, 21, 28, 36, 45, 55, 2,  14,
-        27, 41, 56, 8,  25, 43, 62, 18, 39, 61, 20, 44
-    };
-    private static final int[] KECCAKF_PILN = {
-        10, 7,  11, 17, 18, 3, 5,  16, 8,  21, 24, 4,
-        15, 23, 19, 13, 12, 2, 20, 14, 22, 9,  6,  1
-    };
-
-    private static long rotateLeft(long value, int shift) {
-        return (value << shift) | (value >>> (64 - shift));
-    }
-
-    private static void keccakf(long[] st, int rounds) {
-        long[] bc = new long[5];
-
-        for (int round = 0; round < rounds; ++round) {
-            for (int i = 0; i < 5; ++i) {
-                bc[i] = st[i] ^ st[i + 5] ^ st[i + 10] ^ st[i + 15] ^ st[i + 20];
-            }
-
-            for (int i = 0; i < 5; i++) {
-                long t = bc[(i + 4) % 5] ^ rotateLeft(bc[(i + 1) % 5], 1);
-                for (int j = 0; j < 25; j += 5) {
-                    st[j + i] ^= t;
-                }
-            }
-
-            long t = st[1];
-            for (int i = 0; i < 24; ++i) {
-                int j = KECCAKF_PILN[i];
-                bc[0] = st[j];
-                st[j] = rotateLeft(t, KECCAKF_ROTC[i]);
-                t = bc[0];
-            }
-
-            for (int j = 0; j < 25; j += 5) {
-                for (int i = 0; i < 5; i++) {
-                    bc[i] = st[j + i];
-                }
-                for (int i = 0; i < 5; i++) {
-                    st[j + i] ^= (~bc[(i + 1) % 5]) & bc[(i + 2) % 5];
-                }
-            }
-
-            st[0] ^= KECCAKF_RNDC[round];
-        }
-    }
-
-    public static ByteBuffer keccak1600(ByteBuffer input) {
-        input.order(ByteOrder.LITTLE_ENDIAN);
-
-        int fullBlocks = input.remaining() / BLOCK_SIZE;
-        long[] st = new long[25];
-        for (int block = 0; block < fullBlocks; ++block) {
-            for (int index = 0; index < LONGS_PER_BLOCK; ++index) {
-                st[index] ^= input.getLong();
-            }
-            keccakf(st, KECCAK_ROUNDS);
-        }
-
-        ByteBuffer lastBlock = ByteBuffer.allocate(144).order(ByteOrder.LITTLE_ENDIAN);
-        lastBlock.put(input);
-        lastBlock.put((byte)1);
-        int paddingOffset = BLOCK_SIZE - 1;
-        lastBlock.put(paddingOffset, (byte)(lastBlock.get(paddingOffset) | 0x80));
-        lastBlock.rewind();
-
-        for (int index = 0; index < LONGS_PER_BLOCK; ++index) {
-            st[index] ^= lastBlock.getLong();
-        }
-
-        keccakf(st, KECCAK_ROUNDS);
-
-        ByteBuffer result = ByteBuffer.allocate(32);
-        result.slice().order(ByteOrder.LITTLE_ENDIAN).asLongBuffer().put(st, 0, 4);
-        return result;
-    }
-}
-
-class MoneroBase58 {
-
-    private static final String ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
-    private static final BigInteger ALPHABET_SIZE = BigInteger.valueOf(ALPHABET.length());
-    private static final int FULL_DECODED_BLOCK_SIZE = 8;
-    private static final int FULL_ENCODED_BLOCK_SIZE = 11;
-    private static final BigInteger UINT64_MAX = new BigInteger("18446744073709551615");
-    private static final Map<Integer, Integer> DECODED_CHUNK_LENGTH = Map.of(   2,  1,
-                                                                                3,  2,
-                                                                                5,  3,
-                                                                                6,  4,
-                                                                                7,  5,
-                                                                                9,  6,
-                                                                                10, 7,
-                                                                                11, 8);
-
-    private static void decodeChunk(String input,
-                                    int inputOffset,
-                                    int inputLength,
-                                    byte[] decoded,
-                                    int decodedOffset,
-                                    int decodedLength) throws Exception {
-
-        BigInteger result = BigInteger.ZERO;
-
-        BigInteger order = BigInteger.ONE;
-        for (int index = inputOffset + inputLength; index != inputOffset; order = order.multiply(ALPHABET_SIZE)) {
-            char character = input.charAt(--index);
-            int digit = ALPHABET.indexOf(character);
-            if (digit == -1) {
-                throw new Exception("invalid character " + character);
-            }
-            result = result.add(order.multiply(BigInteger.valueOf(digit)));
-            if (result.compareTo(UINT64_MAX) > 0) {
-                throw new Exception("64-bit unsigned integer overflow " + result.toString());
-            }
-        }
-
-        BigInteger maxCapacity = BigInteger.ONE.shiftLeft(8 * decodedLength);
-        if (result.compareTo(maxCapacity) >= 0) {
-            throw new Exception("capacity overflow " + result.toString());
-        }
-
-        for (int index = decodedOffset + decodedLength; index != decodedOffset; result = result.shiftRight(8)) {
-            decoded[--index] = result.byteValue();
-        }
-    }
-
-    private static byte[] decode(String input) throws Exception {
-        if (input.length() == 0) {
-            return new byte[0];
-        }
-
-        int chunks = input.length() / FULL_ENCODED_BLOCK_SIZE;
-        int lastEncodedSize = input.length() % FULL_ENCODED_BLOCK_SIZE;
-        int lastChunkSize = lastEncodedSize > 0 ? DECODED_CHUNK_LENGTH.get(lastEncodedSize) : 0;
-
-        byte[] result = new byte[chunks * FULL_DECODED_BLOCK_SIZE + lastChunkSize];
-        int inputOffset = 0;
-        int resultOffset = 0;
-        for (int chunk = 0; chunk < chunks; ++chunk,
-                                            inputOffset += FULL_ENCODED_BLOCK_SIZE,
-                                            resultOffset += FULL_DECODED_BLOCK_SIZE) {
-            decodeChunk(input, inputOffset, FULL_ENCODED_BLOCK_SIZE, result, resultOffset, FULL_DECODED_BLOCK_SIZE);
-        }
-        if (lastChunkSize > 0) {
-            decodeChunk(input, inputOffset, lastEncodedSize, result, resultOffset, lastChunkSize);
-        }
-
-        return result;
-    }
-
-    private static long readVarInt(ByteBuffer buffer) {
-        long result = 0;
-        for (int shift = 0; ; shift += 7) {
-            byte current = buffer.get();
-            result += (current & 0x7fL) << shift;
-            if ((current & 0x80L) == 0) {
-                break;
-            }
-        }
-        return result;
-    }
-
-    public static long decodeAddress(String address, boolean validateChecksum) throws Exception {
-        byte[] decoded = decode(address);
-
-        int checksumSize = 4;
-        if (decoded.length < checksumSize) {
-            throw new Exception("invalid length");
-        }
-
-        ByteBuffer decodedAddress = ByteBuffer.wrap(decoded, 0, decoded.length - checksumSize);
-
-        long prefix = readVarInt(decodedAddress.slice());
-        if (!validateChecksum) {
-            return prefix;
-        }
-
-        ByteBuffer fastHash = Keccak.keccak1600(decodedAddress.slice());
-        int checksum = fastHash.getInt();
-        int expected = ByteBuffer.wrap(decoded, decoded.length - checksumSize, checksumSize).getInt();
-        if (checksum != expected) {
-            throw new Exception(String.format("invalid checksum %08X, expected %08X", checksum, expected));
-        }
-
-        return prefix;
-    }
-}