This document is written so to provide a simple demonstration how to write a simple plugin for DnsIPUpdater.

All plugins need to implement the interface IDnsIPPlugin. This interface is found inside DnsIPUpdateBase.dll

Reference to the above assembly in visual studio and create a class. The class name has to be DnsIPPlugin.X, where X is the name of the DNS provider you will be using.
The plugin must implement the following members:
- ProviderName (must be equal to X see above)
- Description (a string description)
- URL (url to dns provider)
- init (called once on init of plugin)
- uninit (called once on uninit of plugin)
- update (called when an update needs to be done)
- UIConfigurationPanel (returns UI Form which can contain additional controls to provide additional configuration *can be null*)


The class must also:
	- provide a static factory method called CreateProvider whose return type is that of IDnsIPPlugin and will return a new instance of the class.
	- have the namespace DnsIPPlugin



Simple Example for DynDns follows:
==================================

using System;
using System.Collections.Generic;
using System.Text;
using DnsIPUpdater;
using System.Net;

namespace DnsIPPlugin
{
    public class DynDns : IDnsIPPlugin
    {
        public DynDns()
        {
        }
        

        public string ProviderName
        {
            get { return "DynDns"; }
        }

        public string Description
        {
            get { return "Updates DynDns.org dynamic ip"; }
        }

        public string URL
        {
            get { return "www.dyndns.org"; }
        }

        public bool init(Pref p)
        {
            return true;
        }

        public bool uninit(Pref p)
        {
            return true;
        }

        public bool update(Pref p, string currentHost)
        {
            /*http://username:password@members.dyndns.org/nic/update?hostname=yourhostname&myip=ipaddress&wildcard=NOCHG&mx=NOCHG&backmx=NOCHG */

            StringBuilder sbdomains = new StringBuilder();
            for (int i = 0; i < p.domains.Count; i++)
            {
                sbdomains.AppendFormat("{0},", p.domains[i]);
            }
            string domains = sbdomains.ToString().Trim(','); //trim trailing ,
                        
            WebClient wc = new WebClient();
            string url;
            string passwrd = Utility.decryptPassword(p.password);

            if (p.remoteip)
            {
                url = string.Format(@"http://{0}:{1}@members.dyndns.org/nic/update?hostname={2}", p.username, passwrd, domains);
            }
            else
            {
                url = string.Format(@"http://{0}:{1}@members.dyndns.org/nic/update?hostname={2}&myip={3}", p.username, passwrd, domains, currentHost);
            }
            string res = wc.DownloadString(url);

            Logger.Log("Result: " + res);

            return true;
        }

        public object UIConfigurationPanel
        {
            get { return null; }
        }


        //Factory Method
        public static IDnsIPPlugin CreateProvider()
        {
            return new DynDns();
        }
    }
}