Add moneropy local file

base58.py

@@ -0,0 +1,168 @@
+# MoneroPy - A python toolbox for Monero
+# Copyright (C) 2016 The MoneroPy Developers.
+#
+# MoneroPy is released under the BSD 3-Clause license. Use and redistribution of
+# this software is subject to the license terms in the LICENSE file found in the
+# top-level directory of this distribution.
+
+__alphabet = [ord(s) for s in '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz']
+__b58base = 58
+__UINT64MAX = 2**64
+__encodedBlockSizes = [0, 2, 3, 5, 6, 7, 9, 10, 11]
+__fullBlockSize = 8
+__fullEncodedBlockSize = 11
+
+def _hexToBin(hex):
+    if len(hex) % 2 != 0:
+        return "Hex string has invalid length!"
+    return [int(hex[i*2:i*2+2], 16) for i in range(len(hex)//2)]
+
+def _binToHex(bin):
+    return "".join([("0" + hex(int(bin[i])).split('x')[1])[-2:] for i in range(len(bin))])
+
+def _strToBin(a):
+    return [ord(s) for s in a]
+
+def _binToStr(bin):
+    return ''.join([chr(bin[i]) for i in range(len(bin))])
+
+def _uint8be_to_64(data):
+    l_data = len(data)
+
+    if l_data < 1 or l_data > 8:
+        return "Invalid input length"
+
+    res = 0
+    switch = 9 - l_data
+    for i in range(l_data):
+        if switch == 1:
+            res = res << 8 | data[i]
+        elif switch == 2:
+            res = res << 8 | data[i]
+        elif switch == 3:
+            res = res << 8 | data[i]
+        elif switch == 4:
+            res = res << 8 | data[i]
+        elif switch == 5:
+            res = res << 8 | data[i]
+        elif switch == 6:
+            res = res << 8 | data[i]
+        elif switch == 7:
+            res = res << 8 | data[i]
+        elif switch == 8:
+            res = res << 8 | data[i]
+        else:
+            return "Impossible condition"
+    return res
+
+def _uint64_to_8be(num, size):
+    res = [0] * size;
+    if size < 1 or size > 8:
+        return "Invalid input length"
+
+    twopow8 = 2**8
+    for i in range(size-1,-1,-1):
+        res[i] = num % twopow8
+        num = num // twopow8
+
+    return res
+
+def encode_block(data, buf, index):
+    l_data = len(data)
+
+    if l_data < 1 or l_data > __fullEncodedBlockSize:
+        return "Invalid block length: " + str(l_data)
+
+    num = _uint8be_to_64(data)
+    i = __encodedBlockSizes[l_data] - 1
+
+    while num > 0:
+        remainder = num % __b58base
+        num = num // __b58base
+        buf[index+i] = __alphabet[remainder];
+        i -= 1
+
+    return buf
+
+def encode(hex):
+    '''Encode hexadecimal string as base58 (ex: encoding a Monero address).'''
+    data = _hexToBin(hex)
+    l_data = len(data)
+
+    if l_data == 0:
+        return ""
+
+    full_block_count = l_data // __fullBlockSize
+    last_block_size = l_data % __fullBlockSize
+    res_size = full_block_count * __fullEncodedBlockSize + __encodedBlockSizes[last_block_size]
+
+    res = [0] * res_size
+    for i in range(res_size):
+        res[i] = __alphabet[0]
+
+    for i in range(full_block_count):
+        res = encode_block(data[(i*__fullBlockSize):(i*__fullBlockSize+__fullBlockSize)], res, i * __fullEncodedBlockSize)
+
+    if last_block_size > 0:
+        res = encode_block(data[(full_block_count*__fullBlockSize):(full_block_count*__fullBlockSize+last_block_size)], res, full_block_count * __fullEncodedBlockSize)
+
+    return _binToStr(res)
+
+def decode_block(data, buf, index):
+    l_data = len(data)
+
+    if l_data < 1 or l_data > __fullEncodedBlockSize:
+        return "Invalid block length: " + l_data
+
+    res_size = __encodedBlockSizes.index(l_data)
+    if res_size <= 0:
+        return "Invalid block size"
+
+    res_num = 0
+    order = 1
+    for i in range(l_data-1, -1, -1):
+        digit = __alphabet.index(data[i])
+        if digit < 0:
+            return "Invalid symbol"
+
+        product = order * digit + res_num
+        if product > __UINT64MAX:
+            return "Overflow"
+
+        res_num = product
+        order = order * __b58base
+
+    if res_size < __fullBlockSize and 2**(8 * res_size) <= res_num:
+        return "Overflow 2"
+
+    tmp_buf = _uint64_to_8be(res_num, res_size)
+    for i in range(len(tmp_buf)):
+        buf[i+index] = tmp_buf[i]
+
+    return buf
+
+def decode(enc):
+    '''Decode a base58 string (ex: a Monero address) into hexidecimal form.'''
+    enc = _strToBin(enc)
+    l_enc = len(enc)
+
+    if l_enc == 0:
+        return ""
+
+    full_block_count = l_enc // __fullEncodedBlockSize
+    last_block_size = l_enc % __fullEncodedBlockSize
+    last_block_decoded_size = __encodedBlockSizes.index(last_block_size)
+
+    if last_block_decoded_size < 0:
+        return "Invalid encoded length"
+
+    data_size = full_block_count * __fullBlockSize + last_block_decoded_size
+
+    data = [0] * data_size
+    for i in range(full_block_count):
+        data = decode_block(enc[(i*__fullEncodedBlockSize):(i*__fullEncodedBlockSize+__fullEncodedBlockSize)], data, i * __fullBlockSize)
+
+    if last_block_size > 0:
+        data = decode_block(enc[(full_block_count*__fullEncodedBlockSize):(full_block_count*__fullEncodedBlockSize+last_block_size)], data, full_block_count * __fullBlockSize)
+
+    return _binToHex(data)

observer.py

@@ -21,7 +21,7 @@ from io import BytesIO
 import pysodium
 import nacl.encoding
 import nacl.hash
-import moneropy.base58 as b58
+import base58
 import sha3
 import config
 import local_config
@@ -514,7 +514,7 @@ def show_ons(name, more_details=False):
 
                     val = network + val + checksum
 
-                    ons_data[ons_type]['mapping'] = b58.encode(val.hex())
+                    ons_data[ons_type]['mapping'] = base58.encode(val.hex())
                     continue
 
                 if ons_types[ons_type] == 2: