DZone Snippets: base64 code

Simple base64 encoder/decoder in command-line with D

kedare (Mathieu Poussin) — Thu, 17 Jul 2008 19:16:35 GMT



import std.base64;

import std.stdio;

import std.array;

void main(string[] args)

 {

	try {

		string action = args[1];

		string source = args[2];

		string dest;

		if(action == "encode") {

			dest = std.base64.encode(source);

		}

		else if(action == "decode") {

			dest = std.base64.decode(source);

		}

		else {

			writeln("Error: Bad Action");

			return 1;

		}

		writeln(dest);

		return 0;

	}

	catch(ArrayBoundsError err) {

		writefln("Error: Missing argument (%s action string)", args[0]);

	}

 }

Usage: b64utils [de/en]code mytext

base64

cdvddt (Raphael Jolivet) — Wed, 30 May 2007 10:31:39 GMT

Simple python script to trnasform std input to base64 encoding



#! /usr/bin/python



import base64

import sys



encoded = base64.b64encode(sys.stdin.read())



print encoded

Using base64 to encode/decode data

korakot (Korakot Chaovavanich) — Thu, 02 Mar 2006 19:28:38 GMT

If you have binary data, you can encode it with
ascii character to store it more safely.
base64 module is an efficient choice to do so.
It uses characters from this set
('=' is used for padding at the end.)



ABCDEFGHIJKLMNOPQRSTUVWXYZ

abcdefghijklmnopqrstuvwxyz

0123456789+/

Here's how to use it.



>>> import base64

>>> base64.encodestring('hello world')

'aGVsbG8gd29ybGQ=\n'

>>> base64.decodestring(_)

'hello world'

>>>

If the text is long, the base64 module will split
the encoded data into multiple lines.
If you don't wan't it to be split. You can use
binascii.b2a_base64 instead of base64.encodestring and
binascii.a2b_base64 instead of base64.decodestring