A simple php class for logging in DirectAdmin panel and calling actions. It can easily extended to what you need, currently I have added only some methods for one of my projects.

Supported actions

login
domain_pointer_add (single domain)
domain_pointer_delete (single and multiple with comma separated domain names)
file_put (create new file or update existing file)
file_get (get contents of existing file)
web_usage_log (get usage log)
web_error_log (get error log)