201 lines
7.1 KiB
C#
201 lines
7.1 KiB
C#
/******************************************************************************
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* The MIT License
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* Copyright (c) 2003 Novell Inc. www.novell.com
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the Software), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*******************************************************************************/
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//
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// Novell.Directory.Ldap.Controls.LdapVirtualListResponse.cs
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//
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// Author:
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// Sunil Kumar (Sunilk@novell.com)
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//
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// (C) 2003 Novell, Inc (http://www.novell.com)
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//
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using System;
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using Novell.Directory.Ldap;
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using Novell.Directory.Ldap.Asn1;
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namespace Novell.Directory.Ldap.Controls
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{
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/// <summary>
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/// LdapVirtualListResponse is a Server Control returned by the server in
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/// response to a virtual list search request.
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/// </summary>
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/// <summary>
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/// In response to a VLV Search request the server returns an error code
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/// and if the search was successful returns the following information:
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/// <li> an index into the search results from where the returned list begins</li>
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/// <li> an estimate of the total number of elements in the search result</li>
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/// <li> an optional context field to be returned to the server with
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/// subsequent VLV request.</li>
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///
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/// </summary>
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public class LdapVirtualListResponse:LdapControl
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{
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/// <summary> Returns the size of the virtual search results list. This integer as
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/// the servers current estimate of what the search result size.
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/// </summary>
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virtual public int ContentCount
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{
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get
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{
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return m_ContentCount;
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}
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}
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/// <summary> Returns the index of the first entry in the returned list. The server uses
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/// the clients request information in conjunction with its current search result
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/// list to estimate what list of entries the client is requesting. This integer
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/// is the index into the search results that is returned to the client.
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/// </summary>
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virtual public int FirstPosition
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{
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get
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{
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return m_firstPosition;
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}
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}
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/// <summary> Returns the result code for the virtual list search request.</summary>
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virtual public int ResultCode
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{
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get
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{
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return m_resultCode;
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}
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}
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/// <summary> Returns the cookie used by some servers to optimize the processing of
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/// virtual list requests. Subsequent VLV requests to the same server
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/// should return this String to the server.
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/// </summary>
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virtual public System.String Context
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{
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get
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{
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return m_context;
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}
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}
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/* The parsed fields are stored in these private variables */
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private int m_firstPosition;
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private int m_ContentCount;
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private int m_resultCode;
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/* The context field if one was returned by the server */
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private System.String m_context = null;
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/// <summary> This constructor is usually called by the SDK to instantiate an
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/// a LdapControl corresponding to the Server response to a Ldap
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/// VLV Control request. Application programmers should not have
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/// any reason to call the constructor. This constructor besides
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/// constructing a LdapVirtualListResponse control object also
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/// parses the contents of the response into local variables.
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///
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/// RFC 2891 defines this response control as follows:
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///
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/// The controlValue is an OCTET STRING, whose value is the BER
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/// encoding of a value of the following ASN.1:
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///
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/// VirtualListViewResponse ::= SEQUENCE {
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/// targetPosition INTEGER (0 .. maxInt),
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/// contentCount INTEGER (0 .. maxInt),
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/// virtualListViewResult ENUMERATED {
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/// success (0),
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/// operationsError (1),
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/// unwillingToPerform (53),
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/// insufficientAccessRights (50),
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/// busy (51),
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/// timeLimitExceeded (3),
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/// adminLimitExceeded (11),
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/// sortControlMissing (60),
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/// offsetRangeError (61),
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/// other (80) },
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/// contextID OCTET STRING OPTIONAL }
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///
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///
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/// </summary>
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/// <param name="oid"> The OID of the control, as a dotted string.
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///
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/// </param>
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/// <param name="critical"> True if the Ldap operation should be discarded if
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/// the control is not supported. False if
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/// the operation can be processed without the control.
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///
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/// </param>
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/// <param name="values"> The control-specific data.
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/// </param>
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[CLSCompliantAttribute(false)]
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public LdapVirtualListResponse(System.String oid, bool critical, sbyte[] values):base(oid, critical, values)
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{
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/* Create a decoder object */
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LBERDecoder decoder = new LBERDecoder();
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if (decoder == null)
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throw new System.IO.IOException("Decoding error");
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/* We should get back an ASN.1 Sequence object */
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Asn1Object asnObj = decoder.decode(values);
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if ((asnObj == null) || (!(asnObj is Asn1Sequence)))
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throw new System.IO.IOException("Decoding error");
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/* Else we got back a ASN.1 sequence - print it if running debug code */
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/* Get the 1st element which should be an integer containing the
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* targetPosition (firstPosition)
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*/
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Asn1Object asn1firstPosition = ((Asn1Sequence) asnObj).get_Renamed(0);
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if ((asn1firstPosition != null) && (asn1firstPosition is Asn1Integer))
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m_firstPosition = ((Asn1Integer) asn1firstPosition).intValue();
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else
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throw new System.IO.IOException("Decoding error");
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/* Get the 2nd element which should be an integer containing the
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* current estimate of the contentCount
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*/
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Asn1Object asn1ContentCount = ((Asn1Sequence) asnObj).get_Renamed(1);
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if ((asn1ContentCount != null) && (asn1ContentCount is Asn1Integer))
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m_ContentCount = ((Asn1Integer) asn1ContentCount).intValue();
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else
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throw new System.IO.IOException("Decoding error");
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/* The 3rd element is an enum containing the errorcode */
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Asn1Object asn1Enum = ((Asn1Sequence) asnObj).get_Renamed(2);
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if ((asn1Enum != null) && (asn1Enum is Asn1Enumerated))
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m_resultCode = ((Asn1Enumerated) asn1Enum).intValue();
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else
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throw new System.IO.IOException("Decoding error");
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/* Optional 4th element could be the context string that the server
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* wants the client to send back with each subsequent VLV request
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*/
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if (((Asn1Sequence) asnObj).size() > 3)
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{
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Asn1Object asn1String = ((Asn1Sequence) asnObj).get_Renamed(3);
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if ((asn1String != null) && (asn1String is Asn1OctetString))
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m_context = ((Asn1OctetString) asn1String).stringValue();
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}
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return ;
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}
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}
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}
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