[Tutoriel] Formatage d'une chaîne de caractère avec Python3

Ce script peut convertir:

• Une chaîne de caractère en sa représentation hexadécimale
• Hexadécimal en chaîne de caractère
• Une chaîne de caractère en sa représentation binaire
• Binaire en chaîne de caractère
• Binaire en hexadécimal
• Hexadécimal en binaire
• Inverser une chaîne de caractère
• Chaîne de caractère en sa représentation en base64
• Base64 en chaîne de caractère

	#!/usr/bin/python3
	#
	# Some useful methods
	# convert :
	# - String <-> Binary
	# - String <-> Hex
	# - Reverse string (the most pythonic and rapid way using slices)
	# - String <-> base64
	# - Binary <-> Hex
	class ConvertTool:
	def __init__(self):
	pass
	def stringToHex(self, input_str = ""):
	try:
	return ''.join('{0}'.format(hex(ord(char)).replace('0x', "")) for char in input_str)
	except Exception as e:
	print("Error occurred during convertion of {0} into a Hex\nError: {1} ".format(input_str, e))
	return None
	def hexToString(self, input_str = ""):
	try:
	return ''.join('{0}'.format(chr(int(x, 16))) for x in [input_str[i:i+2] for i in range(0, len(input_str), 2)])
	except Exception as e:
	print("Error occurend during the convertion of {0} into a string\nError: {1}".format(input_str, e))
	return None
	def stringToBinary(self, input_str = ""):
	try:
	return ''.join('{0:08b}'.format(ord(char), 'b') for char in input_str )
	except Exception as e:
	print("Error occurred druing the convertion of {0} to Binary\nError: {1}".format(input_str, e))
	return None
	def binaryToString(self, input_str = ""):
	# Convert binary into hex then convert hex into string
	try:
	return self.hexToString(self.binaryToHex(input_str))
	except Exception as e:
	print("Error occurred during the convertion of {0} into a String\nError: {1}".format(input_str, e))
	return None
	def binaryToHex(self, input_str = ""):
	try:
	return "{0:0>4x}".format(int(input_str, 2))
	except Exception as e:
	print("Error occurred during the convertion of {0} into a Hex\nError: {1}".format(input_str, e))
	return None
	def hexToBinary(self, input_str = ""):
	try:
	return '{0:0>4b}'.format(int(input_str, 16))
	except Exception as e:
	print("Error occurred during the convertion of {0} into a Binary\nError: {1}".format(input_str, e))
	return None
	def reverseString(self, input_str = ""):
	try:
	return input_str[::-1]
	except Exception as e:
	print("Error occurred during reversing {0}\nError: {1}".format(input_str, e))
	return None
	def stringToBase64(self, input_str = ""):
	try:
	from base64 import b64encode
	return b64encode(input_str.encode()).decode('utf8')
	except Exception as e:
	print("Error occurred during encoding {0} into base64\nError: {1}".format(input_str, e))
	return None
	def base64ToString(self, input_str = ""):
	try:
	from base64 import b64decode
	return b64decode(input_str.encode()).decode('utf8')
	except Exception as e:
	print("Error occurred during decoding {0} into String\nError: {1}".format(input_str, e))
	return None
	# Test
	if __name__ == '__main__':
	app = ConvertTool()
	print("string -> hex: ", app.stringToHex("ÿÿa"))
	print("hex -> string : ", app.hexToString("6161"))
	print("string -> binary: ", app.stringToBinary("ÿÿa"))
	print("binary -> hex: ", app.binaryToHex("1111111111111111"))
	print("binary -> string: ", app.binaryToString("1111111111111111"))
	print("hex -> binary: ", app.hexToBinary("ffff61"))
	print("reversed string: ", app.reverseString("hello nexus "))
	print("string -> base64: ", app.stringToBase64("chiheb nexus"))
	print("base64 -> string: ", app.base64ToString("Y2hpaGViIG5leHVz"))

view raw convertTool.py hosted with ❤ by GitHub