The Base64 class can encode String or ByteArray objects to Base 64 encoding and vice versa.
You can download the latest version of the Base64 class from http://dynamicflash.com/goodies/base64
Before you can use the Base64 class, you need to add the as3base64.swc file to your library path.
If you're using Flex Builder 3, simple copy the file into your libs directory and it'll automatically be imported into your project.
If you're using the Flex SDK command-line compiler you'll need to add the SWC to your library path using the -library-path command-line switch:
mxmlc -library-path+=/path/to/as3base64.swc ...
Flash CS3 isn't smart enough to know what to to with a SWC file, so if you're using Flash CS3 you need to add the src directory to your classpath in your project's Publish Settings.
If you're one of the lucky people using Flash CS4, you just add the SWC to the classpath in your project's Publish Settings.
Encoding from and decoding to String:
import com.dynamicflash.util.Base64;
var source:String = "Hello, world!";
var encoded:String = Base64.encode(source);
trace(encoded)
var decoded:String = Base64.decode(source);
trace(decoded);
Encoding from and decoding to a ByteArray:
import com.dynamicflash.util.Base64;
var obj:Object = {name:"Dynamic Flash", url:"http://dynamicflash.com"};
var source:ByteArray = new ByteArray();
source.writeObject(obj);
var encoded:String = Base64.encodeByteArray(source);
trace(encoded);
var decoded:ByteArray = Base64.decodeToByteArray(encoded);
var obj2:Object = decoded.readObject();
trace(obj2.name + "(" + obj2.url + ")");
You need to make sure that the compc command-line compiler from the Flex SDK is on your path. Then run either build.sh (Mac/Linux) or build.bat (Windows) from a terminal window to rebuild the build/as3base64.swc file.
Repackaged library as a SWC so that you don't have to have my code hanging around in your src folder.
Initial release.
Bug reports should be filed at http://dynamicflash.com/goodies/base64
The base64 class is released under the MIT license.
Copyright (c) 2006 Steve Webster
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