mcs/class/Novell.Directory.Ldap/Novell.Directory.Ldap.Utilclass/RDN.cs

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  23 //
  24 // Novell.Directory.Ldap.Utilclass.RDN.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
  34 namespace Novell.Directory.Ldap.Utilclass
  35 {
  36
  37         /// <summary> A RDN encapsulates a single object's name of a Distinguished Name(DN).
  38         /// The object name represented by this class contains no context.  Thus a
  39         /// Relative Distinguished Name (RDN) could be relative to anywhere in the
  40         /// Directories tree.
  41         ///
  42         /// For example, of following DN, 'cn=admin, ou=marketing, o=corporation', all
  43         /// possible RDNs are 'cn=admin', 'ou=marketing', and 'o=corporation'.
  44         ///
  45         /// Multivalued attributes are encapsulated in this class.  For example the
  46         /// following could be represented by an RDN: 'cn=john + l=US', or
  47         /// 'cn=juan + l=ES'
  48         ///
  49         /// </summary>
  50         /// <seealso cref="DN">
  51         /// </seealso>
  52
  53
  54         public class RDN:System.Object
  55         {
  56                 /// <summary> Returns the actually Raw String before Normalization
  57                 ///
  58                 /// </summary>
  59                 /// <returns> The raw string
  60                 /// </returns>
  61                 virtual protected internal System.String RawValue
  62                 {
  63                         get
  64                         {
  65                                 return rawValue;
  66                         }
  67
  68                 }
  69                 /// <summary> Returns the type of this RDN.  This method assumes that only one value
  70                 /// is used, If multivalues attributes are used only the first Type is
  71                 /// returned.  Use GetTypes.
  72                 /// </summary>
  73                 /// <returns> Type of attribute
  74                 /// </returns>
  75                 virtual public System.String Type
  76                 {
  77                         get
  78                         {
  79                                 return (System.String) types[0];
  80                         }
  81
  82                 }
  83                 /// <summary> Returns all the types for this RDN.</summary>
  84                 /// <returns> list of types
  85                 /// </returns>
  86                 virtual public System.String[] Types
  87                 {
  88                         get
  89                         {
  90                                 System.String[] toReturn = new System.String[types.Count];
  91                                 for (int i = 0; i < types.Count; i++)
  92                                         toReturn[i] = ((System.String) types[i]);
  93                                 return toReturn;
  94                         }
  95
  96                 }
  97                 /// <summary> Returns the values of this RDN.  If multivalues attributes are used only
  98                 /// the first Type is returned.  Use GetTypes.
  99                 ///
 100                 /// </summary>
 101                 /// <returns> Type of attribute
 102                 /// </returns>
 103                 virtual public System.String Value
 104                 {
 105                         get
 106                         {
 107                                 return (System.String) values[0];
 108                         }
 109
 110                 }
 111                 /// <summary> Returns all the types for this RDN.</summary>
 112                 /// <returns> list of types
 113                 /// </returns>
 114                 virtual public System.String[] Values
 115                 {
 116                         get
 117                         {
 118                                 System.String[] toReturn = new System.String[values.Count];
 119                                 for (int i = 0; i < values.Count; i++)
 120                                         toReturn[i] = ((System.String) values[i]);
 121                                 return toReturn;
 122                         }
 123
 124                 }
 125                 /// <summary> Determines if this RDN is multivalued or not</summary>
 126                 /// <returns> true if this RDN is multivalued
 127                 /// </returns>
 128                 virtual public bool Multivalued
 129                 {
 130                         get
 131                         {
 132                                 return (values.Count > 1)?true:false;
 133                         }
 134
 135                 }
 136                 private System.Collections.ArrayList types; //list of Type strings
 137                 private System.Collections.ArrayList values; //list of Value strings
 138                 private System.String rawValue; //the unnormalized value
 139
 140                 /// <summary> Creates an RDN object from the DN component specified in the string RDN
 141                 ///
 142                 /// </summary>
 143                 /// <param name="rdn">the DN component
 144                 /// </param>
 145                 public RDN(System.String rdn)
 146                 {
 147                         rawValue = rdn;
 148                         DN dn = new DN(rdn);
 149                         System.Collections.ArrayList rdns = dn.RDNs;
 150                         //there should only be one rdn
 151                         if (rdns.Count != 1)
 152                                 throw new System.ArgumentException("Invalid RDN: see API " + "documentation");
 153                         RDN thisRDN = (RDN) (rdns[0]);
 154                         this.types = thisRDN.types;
 155                         this.values = thisRDN.values;
 156                         this.rawValue = thisRDN.rawValue;
 157                         return ;
 158                 }
 159
 160                 public RDN()
 161                 {
 162                         types = new System.Collections.ArrayList();
 163                         values = new System.Collections.ArrayList();
 164                         rawValue = "";
 165                         return ;
 166                 }
 167
 168                 /// <summary> Compares the RDN to the rdn passed.  Note: If an there exist any
 169                 /// mulivalues in one RDN they must all be present in the other.
 170                 ///
 171                 /// </summary>
 172                 /// <param name="rdn">the RDN to compare to
 173                 ///
 174                 /// @throws IllegalArgumentException if the application compares a name
 175                 /// with an OID.
 176                 /// </param>
 177                 [CLSCompliantAttribute(false)]
 178                 public virtual bool equals(RDN rdn)
 179                 {
 180                         if (this.values.Count != rdn.values.Count)
 181                         {
 182                                 return false;
 183                         }
 184                         int j, i;
 185                         for (i = 0; i < this.values.Count; i++)
 186                         {
 187                                 //verify that the current value and type exists in the other list
 188                                 j = 0;
 189                                 //May need a more intellegent compare
 190                                 while (j < values.Count && (!((System.String) this.values[i]).ToUpper().Equals(((System.String) rdn.values[j]).ToUpper()) || !equalAttrType((System.String) this.types[i], (System.String) rdn.types[j])))
 191                                 {
 192                                         j++;
 193                                 }
 194                                 if (j >= rdn.values.Count)
 195                                 //couldn't find first value
 196                                         return false;
 197                         }
 198                         return true;
 199                 }
 200
 201                 /// <summary> Internal function used by equal to compare Attribute types.  Because
 202                 /// attribute types could either be an OID or a name.  There needs to be a
 203                 /// Translation mechanism.  This function will absract this functionality.
 204                 ///
 205                 /// Currently if types differ (Oid and number) then UnsupportedOperation is
 206                 /// thrown, either one or the other must used.  In the future an OID to name
 207                 /// translation can be used.
 208                 ///
 209                 ///
 210                 /// </summary>
 211                 private bool equalAttrType(System.String attr1, System.String attr2)
 212                 {
 213                         if (System.Char.IsDigit(attr1[0]) ^ System.Char.IsDigit(attr2[0]))
 214                         //isDigit tests if it is an OID
 215                                 throw new System.ArgumentException("OID numbers are not " + "currently compared to attribute names");
 216
 217                         return attr1.ToUpper().Equals(attr2.ToUpper());
 218                 }
 219
 220                 /// <summary> Adds another value to the RDN.  Only one attribute type is allowed for
 221                 /// the RDN.
 222                 /// </summary>
 223                 /// <param name="attrType">Attribute type, could be an OID or String
 224                 /// </param>
 225                 /// <param name="attrValue">Attribute Value, must be normalized and escaped
 226                 /// </param>
 227                 /// <param name="rawValue">or text before normalization, can be Null
 228                 /// </param>
 229                 public virtual void  add(System.String attrType, System.String attrValue, System.String rawValue)
 230                 {
 231                         types.Add(attrType);
 232                         values.Add(attrValue);
 233                         this.rawValue += rawValue;
 234                 }
 235
 236                 /// <summary> Creates a string that represents this RDN, according to RFC 2253
 237                 ///
 238                 /// </summary>
 239                 /// <returns> An RDN string
 240                 /// </returns>
 241                 public override System.String ToString()
 242                 {
 243                         return toString(false);
 244                 }
 245
 246                 /// <summary> Creates a string that represents this RDN.
 247                 ///
 248                 /// If noTypes is true then Atribute types will be ommited.
 249                 ///
 250                 /// </summary>
 251                 /// <param name="noTypes">true if attribute types will be omitted.
 252                 ///
 253                 /// </param>
 254                 /// <returns> An RDN string
 255                 /// </returns>
 256                 [CLSCompliantAttribute(false)]
 257                 public virtual System.String toString(bool noTypes)
 258                 {
 259                         int length = types.Count;
 260                         System.String toReturn = "";
 261                         if (length < 1)
 262                                 return null;
 263                         if (!noTypes)
 264                         {
 265                                 toReturn = types[0] + "=";
 266                         }
 267                         toReturn += values[0];
 268
 269                         for (int i = 1; i < length; i++)
 270                         {
 271                                 toReturn += "+";
 272                                 if (!noTypes)
 273                                 {
 274                                         toReturn += (types[i] + "=");
 275                                 }
 276                                 toReturn += values[i];
 277                         }
 278                         return toReturn;
 279                 }
 280
 281                 /// <summary> Returns each multivalued name in the current RDN as an array of Strings.
 282                 ///
 283                 /// </summary>
 284                 /// <param name="noTypes">Specifies whether Attribute types are included. The attribute
 285                 /// type names will be ommitted if the parameter noTypes is true.
 286                 ///
 287                 /// </param>
 288                 /// <returns> List of multivalued Attributes
 289                 /// </returns>
 290                 public virtual System.String[] explodeRDN(bool noTypes)
 291                 {
 292                         int length = types.Count;
 293                         if (length < 1)
 294                                 return null;
 295                         System.String[] toReturn = new System.String[types.Count];
 296
 297                         if (!noTypes)
 298                         {
 299                                 toReturn[0] = types[0] + "=";
 300                         }
 301                         toReturn[0] += values[0];
 302
 303                         for (int i = 1; i < length; i++)
 304                         {
 305                                 if (!noTypes)
 306                                 {
 307                                         toReturn[i] += (types[i] + "=");
 308                                 }
 309                                 toReturn[i] += values[i];
 310                         }
 311
 312                         return toReturn;
 313                 }
 314         } //end class RDN
 315 }