Connecting to WebDAV Server Using .NET API
Authenticating
The WebDAV client API supports all types of authentication supported by .Net Framework: Basic, Digest, NTLM, Kerberos.
string license = "<?xml version='1.0' encoding='u...
WebDavSession session = new WebDavSession(license);
session.Credentials = new NetworkCredential("User1", "pwd");
IFolder folder = null;
try
{
folder = session.OpenFolder(new Uri("https://server/Products"));
}
catch(UnauthorizedException)
{
Console.WriteLine("Incorrect user name or password.");
}
catch(NotFoundException)
{
Console.WriteLine("Folder not found.");
}
if(folder!=null)
{
Console.WriteLine(folder.LastModified.ToString());
}
To authenticate against Active directory accounts use:
session.Credentials = new NetworkCredential("User1", "pwd", "DOMAIN");
To utilize the user name, password, and domain of the user who is currently logged in or impersonated use:
session.Credentials = CredentialCache.DefaultCredentials;
To build your own custom authentication scheme you must implement IAuthenticationModule Interface and register it with AuthenticationManager.Register method.
Connection Limits
By default every .Net application can open only 2 connections with each domain. To open more connections simultaneously you must increase connection limit:
ServicePointManager.DefaultConnectionLimit = 40;
Connecting Over SSL / HTTPS
If WebDAV server returns incorrect server certificate the API will throw WebDavException with a description “The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.” To avoid this exception and accept non-trusted server certificates set the ServerCertificateValidationCallback in ServicePointManager prior to calling client API methods:
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
...
private static bool ValidateCertificate(
object sender,
X509Certificate certificate,
X509Chain chain,
SslPolicyErrors sslPolicyErrors)
{
Console.WriteLine("Issued by: " + certificate.Issuer);
Console.WriteLine("Issued to: " + certificate.Subject);
Console.WriteLine("Valid until: " + certificate.GetExpirationDateString());
if (sslPolicyErrors == SslPolicyErrors.None)
Console.WriteLine("Valid server certificate");
return true;
}
...
ServicePointManager .ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateCertificate);
WebDavSession session = new WebDavSession(license);
IFolder item = session.OpenFolder(new Uri("https://server:8080/"));
Setting Proxy Connection
WebDavSession session = new WebDavSession(license);
WebProxy proxy = new WebProxy();
proxy.Address = new Uri("http://server1:8888");
proxy.Credentials = new NetworkCredential("User1", "pwd");
session.Proxy = proxy;
IFolder folder = session.OpenFolder(new Uri("http://server2:9876/"));
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