Pastebin... or is it?

local tArgs = { ... }
if #tArgs < 2 then
    return
end

local function get(paste)
    local response = http.get("http://pastebin.com/raw.php?i="..textutils.urlEncode( paste ))
    if response then
        local sResponse = response.readAll()
        response.close()
        return sResponse
    else
        printError( "Failed." )
    end
end

local sCommand = tArgs[1]
if sCommand == "put" then
    local sFile = tArgs[2]
    local sPath = shell.resolve( sFile )
    if not fs.exists( sPath ) or fs.isDir( sPath ) then
        print( "No such file" )
        return
    end

    local sName = fs.getName( sPath )
    local file = fs.open( sPath, "r" )
    local sText = file.readAll()
    file.close()

    local key = "0ec2eb25b6166c0c27a394ae118ad829"
    local response = http.post(
        "http://pastebin.com/api/api_post.php",
        "api_option=paste&"..
        "api_dev_key="..key.."&"..
        "api_paste_format=lua&"..
        "api_paste_name="..textutils.urlEncode(sName).."&"..
        "api_paste_code="..textutils.urlEncode(sText)
    )

    if response then

        local sResponse = response.readAll()
        response.close()

        local sCode = string.match( sResponse, "[^/]+$" )
    else
        print( "Failed." )
    end

elseif sCommand == "get" then
    if #tArgs < 3 then
        printUsage()
        return
    end

    local sCode = tArgs[2]
    local sFile = tArgs[3]
    local sPath = shell.resolve( sFile )
    if fs.exists( sPath ) then
        return
    end

    local res = get(sCode)
    if res then
        local file = fs.open( sPath, "w" )
        file.write( res )
        file.close()

    end
elseif sCommand == "run" then
    local sCode = tArgs[2]

    local res = get(sCode)
    if res then
        local func, err = loadstring(res)
        if not func then
            printError( err )
            return
        end
        setfenv(func, getfenv())
        local success, msg = pcall(func, unpack(tArgs, 3))
        if not success then
            printError( msg )
        end
    end
else
    printUsage()
    return
end