SimplePortScan

"""
Python3: Port Scanner Simple
"""

# Bibliotecas
import sys
import socket
from os import system

# Metodo: Lista de portas
def listaPortas():

    listaPortas = [20, 21, 22, 23, 42, 43, 43, 69, 80, 109, 110, 115, 118, 143,
                   156, 220, 389, 443, 465, 513, 514, 530, 547, 587, 636, 873,
                   989, 990, 992, 993, 995, 1433, 1521, 2049, 2081, 2083, 2086,
                   3306, 3389, 5432, 5500, 5800
                   ]

    return listaPortas

# Metodo: Scanner
def scan(dominio, lista):

    # Estrutura de repeticao: Portas
    for i in range(0, len(lista)):

        try:
            # Criando Socket de conexao + Tempo de espera
            conexao = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            conexao.settimeout(0.3)

            # Resposta do servidor (em codigo)
            resposta = conexao.connect_ex((dominio, lista[i]))

            if resposta == 0:
                print(f" # Porta {lista[i]}: aberta")

        except socket.gaierror:
            print("O hostname nao existe")
            sys.exit()

        except socket.error:
            print("Sem conexao com servidor")
            sys.exit()

# Metodo principal
def main():

    # Apresentacao
    system("clear")
    print("\033[01;32m {0} {1} {0} \033[01;37m".format("=-=" * 5, "Port Scanner"))

    # Entrada de dados
    dominio = input("\033[01;33m \n{} \033[01;37m".format(" # Dominio (site.com): "))
    print("")

    # Chamada de metodo
    scan(dominio, listaPortas())

# Programa principal
if __name__ == '__main__':
    main()