protocol.js

export const guacutils = {
	decode: (string) => {
        let pos = -1;
        let sections = [];

        for(;;) {
            let len = string.indexOf('.', pos + 1);

            if(len === -1)
                break;

            pos = parseInt(string.slice(pos + 1, len)) + len + 1;

            // don't allow funky protocol length
            if(pos > string.length)
                return [];

            sections.push(string.slice(len + 1, pos));


            const sep = string.slice(pos, pos + 1);

            if(sep === ',')
                continue;
            else if(sep === ';')
                break;
            else
                // Invalid data.
                return [];
        }

        return sections;
    },

    encode: (string) => {
        let command = '';

        for(var i = 0; i < string.length; i++) {
            let current = string[i];
            command += current.toString().length + '.' + current;
            command += ( i < string.length - 1 ? ',' : ';');
        }
        return command;
    }
};