mcs/class/Novell.Directory.Ldap/Novell.Directory.Ldap.Controls/LdapSortResponse.cs

   1 /******************************************************************************
   2 * The MIT License
   3 * Copyright (c) 2003 Novell Inc.  www.novell.com
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining  a copy
   6 * of this software and associated documentation files (the Software), to deal
   7 * in the Software without restriction, including  without limitation the rights
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   9 * copies of the Software, and to  permit persons to whom the Software is
  10 * furnished to do so, subject to the following conditions:
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  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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  23 //
  24 // Novell.Directory.Ldap.Controls.LdapSortResponse.cs
  25 //
  26 // Author:
  27 //   Sunil Kumar (Sunilk@novell.com)
  28 //
  29 // (C) 2003 Novell, Inc (http://www.novell.com)
  30 //
  31
  32 using System;
  33 using Novell.Directory.Ldap;
  34 using Novell.Directory.Ldap.Asn1;
  35
  36 namespace Novell.Directory.Ldap.Controls
  37 {
  38
  39         /// <summary>  LdapSortResponse - will be added in newer version of Ldap
  40         /// Controls draft
  41         /// </summary>
  42         public class LdapSortResponse:LdapControl
  43         {
  44                 /// <summary>  If not null, this returns the attribute that caused the sort
  45                 /// operation to fail.
  46                 /// </summary>
  47                 virtual public System.String FailedAttribute
  48                 {
  49                         get
  50                         {
  51                                 return failedAttribute;
  52                         }
  53
  54                 }
  55                 /// <summary> Returns the result code from the sort</summary>
  56                 virtual public int ResultCode
  57                 {
  58                         get
  59                         {
  60                                 return resultCode;
  61                         }
  62
  63                 }
  64
  65                 private System.String failedAttribute;
  66                 private int resultCode;
  67
  68                 /// <summary> This constructor is usually called by the SDK to instantiate an
  69                 /// a LdapControl corresponding to the Server response to a Ldap
  70                 /// Sort Control request.  Application programmers should not have
  71                 /// any reason to call the constructor.  This constructor besides
  72                 /// constructing a LdapControl object parses the contents of the response
  73                 /// control.
  74                 ///
  75                 /// RFC 2891 defines this response control as follows:
  76                 ///
  77                 /// The controlValue is an OCTET STRING, whose
  78                 /// value is the BER encoding of a value of the following SEQUENCE:
  79                 /// SortResult ::= SEQUENCE {
  80                 /// sortResult  ENUMERATED {
  81                 /// success                   (0), -- results are sorted
  82                 /// operationsError           (1), -- server internal failure
  83                 /// timeLimitExceeded         (3), -- timelimit reached before
  84                 /// -- sorting was completed
  85                 /// strongAuthRequired        (8), -- refused to return sorted
  86                 /// -- results via insecure
  87                 /// -- protocol
  88                 /// adminLimitExceeded       (11), -- too many matching entries
  89                 /// -- for the server to sort
  90                 /// noSuchAttribute          (16), -- unrecognized attribute
  91                 /// -- type in sort key
  92                 /// inappropriateMatching    (18), -- unrecognized or
  93                 /// -- inappropriate matching
  94                 /// -- rule in sort key
  95                 /// insufficientAccessRights (50), -- refused to return sorted
  96                 /// -- results to this client
  97                 /// busy                     (51), -- too busy to process
  98                 /// unwillingToPerform       (53), -- unable to sort
  99                 /// other                    (80)
 100                 /// },
 101                 /// attributeType [0] AttributeDescription OPTIONAL }
 102                 ///
 103                 ///
 104                 /// </summary>
 105                 /// <param name="oid">    The OID of the control, as a dotted string.
 106                 ///
 107                 /// </param>
 108                 /// <param name="critical">  True if the Ldap operation should be discarded if
 109                 /// the control is not supported. False if
 110                 /// the operation can be processed without the control.
 111                 ///
 112                 /// </param>
 113                 /// <param name="values">    The control-specific data.
 114                 /// </param>
 115                 [CLSCompliantAttribute(false)]
 116                 public LdapSortResponse(System.String oid, bool critical, sbyte[] values):base(oid, critical, values)
 117                 {
 118
 119                         // Create a decoder object
 120                         LBERDecoder decoder = new LBERDecoder();
 121                         if (decoder == null)
 122                                 throw new System.IO.IOException("Decoding error");
 123
 124                         // We should get back an enumerated type
 125                         Asn1Object asnObj = decoder.decode(values);
 126
 127                         if ((asnObj == null) || (!(asnObj is Asn1Sequence)))
 128                                 throw new System.IO.IOException("Decoding error");
 129
 130
 131                         Asn1Object asn1Enum = ((Asn1Sequence) asnObj).get_Renamed(0);
 132                         if ((asn1Enum != null) && (asn1Enum is Asn1Enumerated))
 133                                 resultCode = ((Asn1Enumerated) asn1Enum).intValue();
 134
 135                         // Second element is the attributeType
 136                         if (((Asn1Sequence) asnObj).size() > 1)
 137                         {
 138                                 Asn1Object asn1String = ((Asn1Sequence) asnObj).get_Renamed(1);
 139                                 if ((asn1String != null) && (asn1String is Asn1OctetString))
 140                                         failedAttribute = ((Asn1OctetString) asn1String).stringValue();
 141                         }
 142                         return ;
 143                 }
 144         }
 145 }