FP 20211102

#passgen.py - a random password generator
import random

#random.randint(1, 44) #38, 1, 44
#random.random() #[0, 1000[ 999-0+1
#pseudo-random

"""
we want to control:
- the length of the password (the #symbols)
-- random length
-- ask the user
- support capital letters A-Z
- support small letters a-z
- support decimal degital 0-9
- support "special symbols", e.g. "*", ".",...
"""
#4 sequences / collections : list, tuple, dict, set
DEFAULT_SPECIAL_SYMBOLS = ["*", "-", "/", "~", "@", "ç", "?"]
DEFAULT_PASS_LENGTH = 8
DEFAULT_B_CAPITAL_L = True
DEFAULT_B_SMALL_L = True
DEFAULT_B_DIGITS = True
DEFAULT_B_SPECIALS = True

TOOL_AZ = 1
TOOL_az = 2
TOOL_D = 3
TOOL_SS = 4
def randomPassword(
    piPassyLength = DEFAULT_PASS_LENGTH, #how many symbols?
    pbCapitalLetters = DEFAULT_B_CAPITAL_L, #True to accept AZ
    pbSmallLetters = DEFAULT_B_SMALL_L, #True to accept az
    pbDigits = DEFAULT_B_DIGITS, #True to accept 0-9
    pbSpecials = DEFAULT_B_SPECIALS, #True to accept ????
    pListSS = DEFAULT_SPECIAL_SYMBOLS
):
    bPasswordReady = False
    strPassword = ""
    while (not bPasswordReady):
        iRandomTool = random.randint(1, 4) #pick a random tool
        iRandomSymbol = None
        if (iRandomTool==TOOL_AZ):
            iRandomSymbol = randomAZ()
        elif (iRandomTool==TOOL_az):
            iRandomSymbol = random_az()
        elif (iRandomTool==TOOL_D):
            iRandomSymbol = randomDigit()
        elif (iRandomTool==TOOL_SS):
            iRandomSymbol = randomSpecialSymbol(pListSS)

        strPassword+=iRandomSymbol
        bPasswordReady = len(strPassword)>=piPassyLength
    #while
    return strPassword
#def randomPassword

def randomSymbolBetween(pStrLeft, pStrRight):
    iCodeLeft = ord(pStrLeft)
    iCodeRight = ord(pStrRight)
    iRandomCode = random.randint(iCodeLeft, iCodeRight)
    strRandomSymbol = chr(iRandomCode)
    return strRandomSymbol
#def randomSymbolBetween

def randomAZ():
    return randomSymbolBetween('A', 'Z')

def random_az():
    return randomSymbolBetween('a', 'z')

def randomDigit():
    return randomSymbolBetween('0', '9')

def randomSpecialSymbol(
    pListSpecialSymbols = DEFAULT_SPECIAL_SYMBOLS
):
    iHowManyElements = len(pListSpecialSymbols) #e.g. 7
    #["coisa1"@0, "coisa2"@1, ...,  "coisa7"@6]
    iRandomListAddress = random.randint(0, iHowManyElements-1)
    strRandomSymbol = pListSpecialSymbols[iRandomListAddress]
    return strRandomSymbol
#def randomSpecialSymbol

#alias (singular) aliases (plural)
def digitoAoCalhas():
    return randomDigit()
#def digitoAoCalhas

for x in range(100):
    #print(randomSpecialSymbol([":", "%"]))
    #print(randomSpecialSymbol())
    print(randomPassword())