crack.src

// command: crack

// --- Globals ---------------------------------------
NEWLINE = char(10)

crypto = null

// --- Global Functions ------------------------------
// Home dir of active user
get_user_home = function()
	if active_user == "root" then return "/root"
	return "/home/" + active_user
end function

// Get hash cache
get_hashes_file = function()
	config_dir = get_user_home + "/Config"
	computer = get_shell.host_computer
	hashes_file = computer.File(config_dir + "/Hashes.txt")
	if hashes_file == null then
		computer.touch(config_dir, "Hashes.txt")
		hashes_file = computer.File(config_dir + "/Hashes.txt")
		hashes_file.chmod("o-rwx")
		hashes_file.chmod("g-rwx")
		if active_user == "root" then hashes_file.chmod("u-rwx")
	end if
    return hashes_file
end function

get_cached_hash_value = function(hash)
    hashes_file = get_hashes_file
    lines = hashes_file.get_content.split("\n")
    for line in lines
        line_parts = line.split("=")
        if line_parts[0] == hash then return line_parts[1]
    end for
    return null
end function

save_hash_to_cache = function(hash, hash_value)
    hashes_file = get_hashes_file
    hash_line = hash + "=" + hash_value
    hashes_file_content = hashes_file.get_content
    if hashes_file_content != "" then hashes_file_content = hashes_file_content + NEWLINE
    hashes_file.set_content(hashes_file_content + hash_line)
end function

get_crypto = function()
	if globals.crypto == null then
		crypto = include_lib("/lib/crypto.so")
		if not crypto then crypto = include_lib(current_path + "/crypto.so")
		if not crypto then 
			exit("<color=#FF0000>Error: Can't find crypto library in the /lib path or the current folder</color>")
		end if
		globals.crypto = crypto
	end if
	return globals.crypto
end function

crack = function(hash)
    if hash.indexOf(":") != null then hash = hash.split(":")[1]
    result = get_cached_hash_value(hash)
    if result == null then 
        result = get_crypto.decipher(hash)
        save_hash_to_cache(hash, result)
    end if
    return result
end function

crack_file = function(file)
	contents = file.get_content
	print
	print("<b>" + file.name + "contents:</b>")
	lines = contents.split("\n")
	i = 0
	for line in lines
		if line.trim == "" then continue
		print(" <b>[" + i + "]</b> " + line)
		i = i + 1
	end for
	print
	choice = 0
	if lines.len > 1 then choice = user_input("<b>Decipher which line?</b> ").to_int
	if choice != null then
		line_tokens = lines[choice].split(":")
		user = line_tokens[0]
		password = crack(line_tokens[1])
		print("<b>User:</b> " + user)
		print("<b>Password:</b> " + password)
	end if
end function

// --- MAIN ------------------------------------------
path = params[0]
if path[0] != "/" then path = current_path + "/" + path
file = get_shell.host_computer.File(path)
if file != null then 
	crack_file(file)
else
	print("<b>Value:</b> " + crack(params[0]))
end if