BTW. Remote authentication developer information is available here: http://zendesk.com/api/remote_authentication

EveryDNS will post a PHP script sometime this weekend that we've gotten to work.

One thing that would be nice is if the logout link at the top right, when using Remote Authentication, was a link back to the site or to the remote API with an addition GET parameter so we can know if they want to logout or if we want to direct them back to the site... etc. :-)

Duly noted.

Hi, thought you might be interested in a C# .net2 authentcation script. We have an application that uses asp.net2 standard membership management, we use code behind and I wanted to integrate zendesk into our application without the user having to log in again. We store username and email address when they log in, in a profile, so we just retrieve it from their rather than read ldap. Also demonstrates use of .net cryptography library.

using System.Text
using System.Security.Cryptography 

    protected void Page_Load(object sender, EventArgs e)
    {
        string sFullName = Profile.GetPropertyValue("UserName").ToString();
        string sEmail = Profile.GetPropertyValue("EmailAddress").ToString();
       
        string sToken = "changedtoprotecttheinnocent";
        string sReturnURL = "https://youraccount.zendesk.com/access/remote/";
        string sURL = "";

        string sMessage = "";
        string sDigest = "";

        sMessage = sFullName + sEmail + sToken + Request.QueryString.Get("timestamp");
        sDigest = Md5(sMessage);

        sURL = sReturnURL + "?name=" + Server.UrlEncode(sFullName) +
                "&email=" + Server.UrlEncode(sEmail) +
                "&timestamp=" + Request.QueryString.Get("timestamp") +
                "&hash=" + sDigest;
        Response.Redirect(sURL);
    }
    public string Md5(string strChange)
    {
        //Change the syllable into UTF8 code
        byte[] pass = Encoding.UTF8.GetBytes(strChange);

        MD5 md5 = new MD5CryptoServiceProvider();
        md5.ComputeHash(pass);
        string strPassword = ByteArrayToHexString(md5.Hash);
        return strPassword;
    }
    public static string ByteArrayToHexString(byte[] Bytes)
    {// important bit, you have to change the byte array to hex string or zenddesk will reject
        StringBuilder Result;
        string HexAlphabet = "0123456789abcdef";

        Result = new StringBuilder();

        foreach (byte B in Bytes)
        {
            Result.Append(HexAlphabet[(int)(B >> 4)]);
            Result.Append(HexAlphabet[(int)(B & 0xF)]);
        }
        return Result.ToString();
    }

Hey Phil. Excellent script. Thanks for sharing. 

We will place templates for different sorts of remote authentication integrations here: http://github.com/zendesk/remote-authentication/

Br,

Morten