A basic c# client for testing webdav endpoints

WebDavClient.linq

void Main()
{
    var usr = @"myDomain\myUser";
    var pwd = Util.GetPassword(usr); //linqpad util library
    var uri = "https://webdavendpoint.example.com/somefolder/";
    var fn = @"c:\temp\filetouploadTestData.txt";
    var rn = "remoteFilenameTestData.txt";
    var wd = new BasicWebDavClient(usr, pwd, uri);
    
    wd.Put(fn, rn);
    wd.PropFind();
    wd.Get(rn, fn + "_downloaded.txt");
}

class BasicWebDavClient 
{
    private readonly string username;
    private readonly string password;
    private readonly string uri;
    public BasicWebDavClient(string username, string password, string uri) 
    {
        this.username = username;
        this.password = password;
        this.uri = uri;
    }
    
    private HttpWebRequest CreateRequest(string requestUri, string method)
    {
        var req = (HttpWebRequest)WebRequest.Create(requestUri);
        req.Credentials = new NetworkCredential(username, password);
        req.PreAuthenticate = true;
        req.Method = method;
        return req;
    }
    
    public void Put(string fn, string name)
    {
        var content = File.ReadAllBytes(fn);
        var target = uri + name;
        var req = CreateRequest(target, "PUT");
        req.Headers.Add("Overwrite", "T"); // T,F :S - https://learn.microsoft.com/en-us/previous-versions/office/developer/exchange-server-2003/aa142944(v=exchg.65)
        req.ContentLength = content.Length;
        //req.SendChunked = true;
        using (var rs = req.GetRequestStream()) 
        {
             rs.Write(content, 0, content.Length);
        }
        using (var resp = (HttpWebResponse)req.GetResponse())
        {
            Console.WriteLine(@"PUT Response: {0}", resp.StatusDescription); // Created if successful, No Content when file already exists?
        }
    }
    
    public void Get(string name, string fn)
    {
        var source = uri + name;
        var req = CreateRequest(source, "GET");
        req.Headers.Add(@"Translate", "F"); // i.e. F = return the raw file from the server; don't try to process it serverside first: https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-wdvse/501879f9-3875-4d7a-ab88-3cecab440034.  Note: Requires SOURCE permission
        using (var resp = (HttpWebResponse)req.GetResponse())
        {
            Console.WriteLine(@"GET Response: {0}", resp.StatusDescription);
            using (var rs = resp.GetResponseStream())
            {
                using (var ms = new MemoryStream())
                {
                    rs.CopyTo(ms);
                    File.WriteAllBytes(fn, ms.ToArray());
                }
            }
        }
    }
    
    // as yet untested
    public void Delete(string name)
    {
        var target = uri + name;
        var req = CreateRequest(target, "DELETE");
        using (var resp = (HttpWebResponse)req.GetResponse())
        {
            Console.WriteLine(@"DELETE Response: {0}", resp.StatusDescription);
        }
    }
    
    public void PropFind()
    {
        var req = CreateRequest(uri, "PROPFIND");
        using (var resp = (HttpWebResponse)req.GetResponse())
        {
            Console.WriteLine(@"PROPFIND Response: {0}", resp.StatusDescription);
            
            var enc = Encoding.GetEncoding(resp.CharacterSet);
            using (var responseStream = resp.GetResponseStream())
            {
                using (var sr = new StreamReader(responseStream, enc))
                {
                    Console.WriteLine("Content: ");
                    var xml = new XmlDocument();
                    xml.LoadXml(sr.ReadToEnd());
                    foreach (XmlNode node in xml.SelectNodes("//*[local-name()='href']"))
                    {
                        Console.WriteLine(" - " + node.InnerText);
                    }
                }
            }
        }
    }
    
    // other webdav methods include MOVE, COPY, MKCOL, etc
    // list of some of these here: https://learn.microsoft.com/en-us/previous-versions/office/developer/exchange-server-2003/aa142917(v=exchg.65)
    
}

Additional Namespace Imports (F4):

• System
• System.IO
• System.Net
• System.Net.Security
• System.Security.Cryptography.X509Certificates
• System.Text