Permissions and access control list

The following example shows you how to find out what the current user may do with a file, who owns it and who has access to it (RFC 3744).

C# example

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Xml.Linq;
using Independentsoft.Webdav;

namespace Sample
{
    class Program
    {
        static async Task Main(string[] args)
        {
            NetworkCredential credential = new NetworkCredential("username", "password");

            using (WebdavClient client = new WebdavClient(credential))
            {
                client.BaseAddress = new Uri("https://myserver/dav/");

                IReadOnlyList<XName> privileges = await client.GetCurrentUserPrivileges("documents/report.pdf");

                if (privileges.Count == 0)
                {
                    Console.WriteLine("The server does not support access control.");
                    return;
                }

                bool canWrite = privileges.Contains(DavPrivilege.Write) || privileges.Contains(DavPrivilege.All);
                Console.WriteLine("May write: " + canWrite);

                Console.WriteLine("Signed in as: " + await client.GetCurrentUserPrincipal(""));
                Console.WriteLine("Owner: " + await client.GetOwner("documents/report.pdf"));

                foreach (AccessControlEntry entry in await client.GetAcl("documents/report.pdf"))
                {
                    Console.WriteLine(entry.Principal + ": grant " + string.Join(", ", entry.Granted.Select(p => p.LocalName)) +
                        (entry.IsProtected ? " (protected)" : ""));
                }
            }
        }
    }
}

VB example

Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Net
Imports System.Threading.Tasks
Imports System.Xml.Linq
Imports Independentsoft.Webdav

Namespace Sample
    Module Program
        Sub Main(args As String())
            RunAsync().GetAwaiter().GetResult()
        End Sub

        Private Async Function RunAsync() As Task
            Dim credential As New NetworkCredential("username", "password")

            Using client As New WebdavClient(credential)
                client.BaseAddress = New Uri("https://myserver/dav/")

                Dim privileges As IReadOnlyList(Of XName) = Await client.GetCurrentUserPrivileges("documents/report.pdf")

                If privileges.Count = 0 Then
                    Console.WriteLine("The server does not support access control.")
                    Return
                End If

                Dim canWrite As Boolean = privileges.Contains(DavPrivilege.Write) OrElse privileges.Contains(DavPrivilege.All)
                Console.WriteLine("May write: " & canWrite)

                Console.WriteLine("Signed in as: " & (Await client.GetCurrentUserPrincipal("")).ToString())
                Console.WriteLine("Owner: " & (Await client.GetOwner("documents/report.pdf"))?.ToString())

                For Each entry As AccessControlEntry In Await client.GetAcl("documents/report.pdf")
                    Console.WriteLine(entry.Principal.ToString() & ": grant " & String.Join(", ", entry.Granted.Select(Function(p) p.LocalName)) &
                        If(entry.IsProtected, " (protected)", ""))
                Next
            End Using
        End Function
    End Module
End Namespace

WebDAV .NET > Tutorial > Permissions and access control list

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