/// <summary>
/// Creates a directory query from the <paramref name="connection"/>.
/// </summary>
/// <param name="connection">The connection to the directory.</param>
/// <param name="namingContext">The location of the query.</param>
/// <param name="scope">The scope of the query. Defaults to <see cref="SearchScope.Subtree"/>.</param>
/// <param name="log">The log for query information. Defaults to null.</param>
/// <param name="maxPageSize">The max page size for the directory. Defaults to 500.</param>
/// <param name="withPaging">Indicates if paging should be used. Defaults to true.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="connection"/> is null or <paramref name="namingContext"/> is null, empty, or white space.</exception>
/// <returns></returns>
/// <example>
/// using (var connection = new LdapConnection("localhost"))
/// {
/// List{IDirectoryAttributes} users = connection.AsQueryable("DC=example,DC=com")
/// .Where(da => Filter.Equal(da, "", ""))
/// }
/// </example>
public static IQueryable <IDirectoryAttributes> Query(this LdapConnection connection, string namingContext,
SearchScope scope = SearchScope.Subtree, ILinqToLdapLogger log = null, int maxPageSize = 500, bool withPaging = true)
{
if (connection == null)
{
throw new ArgumentNullException("connection");
}
var provider = new DirectoryQueryProvider(connection, scope, new DynamicObjectMapping(namingContext, null, null), withPaging)
{
Log = log,
MaxPageSize = maxPageSize,
IsDynamic = true
};
var directoryQuery = new DirectoryQuery <IDirectoryAttributes>(provider);
return(directoryQuery);
}
/// <summary>
/// List server information from RootDSE.
/// </summary>
/// <param name="connection">The connection to the directory.</param>
/// <param name="log">The log for query information. Defaults to null.</param>
/// <param name="attributes">
/// Specify specific attributes to load. Some LDAP servers require an explicit request for certain attributes.
/// </param>
/// <returns></returns>
public static IDirectoryAttributes ListServerAttributes(this LdapConnection connection, string[] attributes = null, ILinqToLdapLogger log = null)
{
try
{
if (connection == null)
{
throw new ArgumentNullException("connection");
}
using (var provider = new DirectoryQueryProvider(
connection, SearchScope.Base, new ServerObjectMapping(), false)
{
Log = log, IsDynamic = true
})
{
var directoryQuery = new DirectoryQuery <IDirectoryAttributes>(provider);
var query = directoryQuery
.FilterWith("(objectClass=*)");
if (attributes != null && attributes.Length > 0)
{
query = query.Select(attributes);
}
var results = query.FirstOrDefault();
return(results ?? new DirectoryAttributes());
}
}
catch (Exception ex)
{
if (log != null)
{
log.Error(ex);
}
throw;
}
}
