How change read/write permissions on IIS FTP using C#?

Question

I create subfolders with C# under a write only root folder in a number of IIS FTP sites (multiple Servers 2008-2019). When I create the subfolder, it inherits the write-only "FTP Authorization" from it's root. How to I change the newly created subfolder's FTP Authorization to read/write with C#?

Answer 1

Here is how I added the FTP Authorization Rule to the IIS FTP site on a specific path.

            using (ServerManager serverManager = new ServerManager())
            {
                Configuration config = serverManager.GetApplicationHostConfiguration();
                ConfigurationSection authorizationSection = config.GetSection("system.ftpServer/security/authorization", "FTP/LDNClient/Reports/" + itm["ftpClientName"]);
                ConfigurationElementCollection authorizationCollection = authorizationSection.GetCollection();

                ConfigurationElement addElement = authorizationCollection.CreateElement("add");
                addElement["accessType"] = @"Allow";
                addElement["users"] = @"LDNClient";
                addElement["roles"] = @"";
                addElement["permissions"] = @"Read, Write";
                authorizationCollection.Add(addElement);

                serverManager.CommitChanges();
            }

Where "FTP/LDNClient/Reports/" + itm["ftpClientName"] was the path I needed to update.