private static LdapConnection Connect([NotNull] IntegrationOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
var ldapConnection = new LdapConnection {
SecureSocketLayer = false
};
ldapConnection.Connect(options.Host, options.Port);
ldapConnection.Bind(options.ProtocolVersion, options.Login, options.Password);
Debug.WriteLine($@"Connected to <{options.Host}:{options.Port}> as <{options.Login}>");
return(ldapConnection);
}
private List <T> RetrievePage([NotNull] LdapConnection ldapConnection, [NotNull] IntegrationOptions options, out LdapControl[] responseControls)
{
if (ldapConnection == null)
{
throw new ArgumentNullException(nameof(ldapConnection));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
var mappedPageResults = new List <T>();
var searchResults = ldapConnection.Search
(
options.SearchBase,
LdapConnection.ScopeSub,
options.Filter,
options.TargetAttributes,
false,
(LdapSearchConstraints)null
);
while (searchResults.HasMore())
{
try
{
var nextEntry = searchResults.Next();
var mappedEntry = _converter.Invoke(nextEntry);
mappedPageResults.Add(mappedEntry);
}
catch (LdapException ex)
{
// you may want to turn referral chasing on
if (ex is LdapReferralException)
{
continue;
}
throw new InvalidOperationException("Failed to proceed to the next search result", ex);
}
}
responseControls = ((LdapSearchResults)searchResults).ResponseControls;
return(mappedPageResults);
}
public List <T> LoadAllPagedResults([NotNull] IntegrationOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
using var ldapConnection = Connect(options);
var searchResult = new List <T>();
var isNextPageAvailable = PrepareForNextPage(ldapConnection, null, options.ResultPageSize, true);
while (isNextPageAvailable)
{
var employeesPage = RetrievePage(ldapConnection, options, out var pageResponseControls);
searchResult.AddRange(employeesPage);
isNextPageAvailable = PrepareForNextPage(ldapConnection, pageResponseControls, options.ResultPageSize, false);
}
return(searchResult);
}