How To Decode A String Encoded By C# Convert.ToBase64String In Python 3

The c# server side: [HttpGet('{id}')] public ActionResult Get(int id) { var user = new User { Id = id, Name = $'User{id}' }; using(var ms = new Me

Solution 1:

Finally, i worked it out in the client side by using:

json = await response.json()
bs = json.encode("ascii")
b64 = base64.b64decode(bs)
person = Person.create_from_bytes(b64)
print(f"{person.id} {person.name}")

Solution 2:

I had some time to develop this Solution for Python3.7, considering as example:

'''        Argument =   [110, 13, 46, 136, 95, 66, 92, 132, 109, 217, 58, 112, 43, 8, 145, 
                         42, 233, 98, 40, 139, 165, 228, 52, 9, 89, 175, 146, 103, 227, 238, 233, 190, 
                         78, 175, 242, 224, 202, 138, 248, 103, 114, 98, 199, 252, 80, 86, 61, 174]
            return =    'bg0uiF9CXIRt2TpwKwiRKuliKIul5DQJWa+SZ+Pu6b5Or/Lgyor4Z3Jix/xQVj2u' 
'''

Like this:

import base64
import numpy as np


# Do the same as Convert.ToBase64String() from C#
def ConvertToBase64String(encrypted):
    return (base64.b64encode(textoUnicodeToUtf8Literal(("".join([chr(item) for item in np.array(encrypted, dtype=np.uint8)]))).encode('ISO-8859-1'))).decode()

# Do the oposite of Convert.ToBase64String() from C#
def ConvertToStringBase64(encrypted):
    return np.frombuffer(base64.b64decode(encrypted.encode()), np.uint8)


def textoUnicodeToUtf8Literal(encodando):
    return encodando.replace("\xc2\x80", r'\x80').replace("\xc2\x81", r'\x81').replace("\xc2\x82", r'\x82')\
        .replace("\xc2\x83", r'\x83').replace("\xc2\x84", r'\x84').replace("\xc2\x85", r'\x85')\
        .replace("\xc2\x86", r'\x86').replace("\xc2\x87", r'\x87').replace("\xc2\x88", r'\x88')\
        .replace("\xc2\x89", r'\x89').replace("\xc2\x8a", r'\x8A').replace("\xc2\x8b", r'\x8B')\
        .replace("\xc2\x8c", r'\x8C').replace("\xc2\x8d", r'\x8D').replace("\xc2\x8e", r'\x8E')\
        .replace("\xc2\x8f", r'\x8F').replace("\xc2\x90", r'\x90').replace("\xc2\x91", r'\x91')\
        .replace("\xc2\x92", r'\x92').replace("\xc2\x93", r'\x93').replace("\xc2\x94", r'\x94')\
        .replace("\xc2\x95", r'\x95').replace("\xc2\x96", r'\x96').replace("\xc2\x97", r'\x97')\
        .replace("\xc2\x98", r'\x98').replace("\xc2\x99", r'\x99').replace("\xc2\x9a", r'\x9A')\
        .replace("\xc2\x9b", r'\x9B').replace("\xc2\x9c", r'\x9C').replace("\xc2\x9d", r'\x9D')\
        .replace("\xc2\x9e", r'\x9E').replace("\xc2\x9f", r'\x9F').replace("\xc2\xa0", r'\xA0')\
        .replace("\xc2\xa1", r'\xA1').replace("\xc2\xa2", r'\xA2').replace("\xc2\xa3", r'\xA3')\
        .replace("\xc2\xa4", r'\xA4').replace("\xc2\xa5", r'\xA5').replace("\xc2\xa6", r'\xA6')\
        .replace("\xc2\xa7", r'\xA7').replace("\xc2\xa8", r'\xA8').replace("\xc2\xa9", r'\xA9')\
        .replace("\xc2\xaa", r'\xAA').replace("\xc2\xab", r'\xAB').replace("\xc2\xac", r'\xAC')\
        .replace("\xc2\xad", r'\xAD').replace("\xc2\xae", r'\xAE').replace("\xc2\xaf", r'\xAF')\
        .replace("\xc2\xb0", r'\xB0').replace("\xc2\xb1", r'\xB1').replace("\xc2\xb2", r'\xB2')\
        .replace("\xc2\xb3", r'\xB3').replace("\xc2\xb4", r'\xB4').replace("\xc2\xb5", r'\xB5')\
        .replace("\xc2\xb6", r'\xB6').replace("\xc2\xb7", r'\xB7').replace("\xc2\xb8", r'\xB8')\
        .replace("\xc2\xb9", r'\xB9').replace("\xc2\xba", r'\xBA').replace("\xc2\xbb", r'\xBB')\
        .replace("\xc2\xbc", r'\xBC').replace("\xc2\xbd", r'\xBD').replace("\xc2\xbe", r'\xBE')\
        .replace("\xc2\xbf", r'\xBF').replace("\xc3\x80", r'\xC0').replace("\xc3\x81", r'\xC1')\
        .replace("\xc3\x82", r'\xC2').replace("\xc3\x83", r'\xC3').replace("\xc3\x84", r'\xC4')\
        .replace("\xc3\x85", r'\xC5').replace("\xc3\x86", r'\xC6').replace("\xc3\x87", r'\xC7')\
        .replace("\xc3\x88", r'\xC8').replace("\xc3\x89", r'\xC9').replace("\xc3\x8a", r'\xCA')\
        .replace("\xc3\x8b", r'\xCB').replace("\xc3\x8c", r'\xCC').replace("\xc3\x8d", r'\xCD')\
        .replace("\xc3\x8e", r'\xCE').replace("\xc3\x8f", r'\xCF').replace("\xc3\x90", r'\xD0')\
        .replace("\xc3\x91", r'\xD1').replace("\xc3\x92", r'\xD2').replace("\xc3\x93", r'\xD3')\
        .replace("\xc3\x94", r'\xD4').replace("\xc3\x95", r'\xD5').replace("\xc3\x96", r'\xD6')\
        .replace("\xc3\x97", r'\xD7').replace("\xc3\x98", r'\xD8').replace("\xc3\x99", r'\xD9')\
        .replace("\xc3\x9a", r'\xDA').replace("\xc3\x9b", r'\xDB').replace("\xc3\x9c", r'\xDC')\
        .replace("\xc3\x9d", r'\xDD').replace("\xc3\x9e", r'\xDE').replace("\xc3\x9f", r'\xDF')\
        .replace("\xc3\xa0", r'\xE0').replace("\xc3\xa1", r'\xE1').replace("\xc3\xa2", r'\xE2')\
        .replace("\xc3\xa3", r'\xE3').replace("\xc3\xa4", r'\xE4').replace("\xc3\xa5", r'\xE5')\
        .replace("\xc3\xa6", r'\xE6').replace("\xc3\xa7", r'\xE7').replace("\xc3\xa8", r'\xE8')\
        .replace("\xc3\xa9", r'\xE9').replace("\xc3\xaa", r'\xEA').replace("\xc3\xab", r'\xEB')\
        .replace("\xc3\xac", r'\xEC').replace("\xc3\xad", r'\xED').replace("\xc3\xae", r'\xEE')\
        .replace("\xc3\xaf", r'\xEF').replace("\xc3\xb0", r'\xF0').replace("\xc3\xb1", r'\xF1')\
        .replace("\xc3\xb2", r'\xF2').replace("\xc3\xb3", r'\xF3').replace("\xc3\xb4", r'\xF4')\
        .replace("\xc3\xb5", r'\xF5').replace("\xc3\xb6", r'\xF6').replace("\xc3\xb7", r'\xF7')\
        .replace("\xc3\xb8", r'\xF8').replace("\xc3\xb9", r'\xF9').replace("\xc3\xba", r'\xFA')\
        .replace("\xc3\xbb", r'\xFB').replace("\xc3\xbc", r'\xFC').replace("\xc3\xbd", r'\xFD')\
        .replace("\xc3\xbe", r'\xFE').replace("\xc3\xbf", r'\xFF')