/// <summary> Encode an array of LdapModifications to ASN.1.
///
/// </summary>
/// <param name="mods">an array of LdapModification objects
///
/// </param>
/// <returns> an Asn1SequenceOf object containing the modifications.
/// </returns>
static private Asn1SequenceOf encodeModifications(LdapModification[] mods)
{
// Convert Java-API LdapModification[] to RFC2251 SEQUENCE OF SEQUENCE
Asn1SequenceOf rfcMods = new Asn1SequenceOf(mods.Length);
for (int i = 0; i < mods.Length; i++)
{
LdapAttribute attr = mods[i].Attribute;
// place modification attribute values in Asn1SetOf
Asn1SetOf vals = new Asn1SetOf(attr.size());
if (attr.size() > 0)
{
System.Collections.IEnumerator attrEnum = attr.ByteValues;
while (attrEnum.MoveNext())
{
vals.add(new RfcAttributeValue((sbyte[])attrEnum.Current));
}
}
// create SEQUENCE containing mod operation and attr type and vals
Asn1Sequence rfcMod = new Asn1Sequence(2);
rfcMod.add(new Asn1Enumerated(mods[i].Op));
rfcMod.add(new RfcAttributeTypeAndValues(new RfcAttributeDescription(attr.Name), vals));
// place SEQUENCE into SEQUENCE OF
rfcMods.add(rfcMod);
}
return(rfcMods);
}
/// <summary> Build the attribuite list from an LdapEntry.
///
/// </summary>
/// <param name="entry">The LdapEntry associated with this add request.
/// </param>
private static RfcAttributeList makeRfcAttrList(LdapEntry entry)
{
// convert Java-API LdapEntry to RFC2251 AttributeList
LdapAttributeSet attrSet = entry.getAttributeSet();
RfcAttributeList attrList = new RfcAttributeList(attrSet.Count);
IEnumerator itr = attrSet.GetEnumerator();
while (itr.MoveNext())
{
LdapAttribute attr = (LdapAttribute)itr.Current;
Asn1SetOf vals = new Asn1SetOf(attr.size());
IEnumerator attrEnum = attr.ByteValues;
while (attrEnum.MoveNext())
{
vals.add(new RfcAttributeValue((sbyte[])attrEnum.Current));
}
attrList.add(new RfcAttributeTypeAndValues(new RfcAttributeDescription(attr.Name), vals));
}
return(attrList);
}
/// <summary> Asynchronously compares an attribute value with one in the directory,
/// using the specified queue and contraints.
///
/// Please note that a successful completion of this command results in
/// one of two status codes: LdapException.COMPARE_TRUE if the entry
/// has the value, and LdapException.COMPARE_FALSE if the entry
/// does not have the value or the attribute.
///
/// </summary>
/// <param name="dn"> The distinguished name of the entry containing an
/// attribute to compare.
///
/// </param>
/// <param name="attr"> An attribute to compare.
///
/// </param>
/// <param name="queue"> Handler for messages returned from a server in
/// response to this request. If it is null, a
/// queue object is created internally.
///
/// </param>
/// <param name="cons"> Constraints specific to the operation.
///
/// </param>
/// <exception> LdapException A general exception which includes an error
/// message and an Ldap error code.
///
/// </exception>
/// <seealso cref="LdapException.COMPARE_TRUE">
/// </seealso>
/// <seealso cref="LdapException.COMPARE_FALSE">
/// </seealso>
public virtual LdapResponseQueue Compare(System.String dn, LdapAttribute attr, LdapResponseQueue queue, LdapConstraints cons)
{
if (attr.size() != 1)
{
throw new System.ArgumentException("compare: Exactly one value " + "must be present in the LdapAttribute");
}
if ((System.Object) dn == null)
{
// Invalid parameter
throw new System.ArgumentException("compare: DN cannot be null");
}
if (cons == null)
cons = defSearchCons;
LdapMessage msg = new LdapCompareRequest(dn, attr.Name, attr.ByteValue, cons.getControls());
return SendRequestToServer(msg, cons.TimeLimit, queue, null);
}
static bool IsAttributeEmpty(LdapAttribute attribute)
{
if (attribute == null)
return true;
if (attribute.size() == 0)
return true;
if (attribute.StringValue == null || attribute.StringValue == "")
return true;
return false;
}