mcs/class/corlib/System.Reflection/AssemblyName.cs

   1 //
   2 // System.Reflection/AssemblyName.cs
   3 //
   4 // Authors:
   5 //      Paolo Molaro (lupus@ximian.com)
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   9 // Portions (C) 2002 Motus Technologies Inc. (http://www.motus.com)
  10 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Configuration.Assemblies;
  33 using System.Globalization;
  34 using System.Runtime.Serialization;
  35 using System.Security;
  36 using System.Security.Cryptography;
  37 using System.Security.Permissions;
  38 using System.Text;
  39 using System.Runtime.InteropServices;
  40 using System.Runtime.CompilerServices;
  41 using System.IO;
  42
  43 using Mono.Security;
  44 using Mono.Security.Cryptography;
  45
  46 namespace System.Reflection {
  47
  48 // References:
  49 // a.   Uniform Resource Identifiers (URI): Generic Syntax
  50 //      http://www.ietf.org/rfc/rfc2396.txt
  51
  52         [ComVisible (true)]
  53         [ComDefaultInterfaceAttribute (typeof (_AssemblyName))]
  54         [Serializable]
  55         [ClassInterfaceAttribute (ClassInterfaceType.None)]
  56         [StructLayout (LayoutKind.Sequential)]
  57 #if MOBILE
  58         public sealed class AssemblyName  : ICloneable, ISerializable, IDeserializationCallback {
  59 #else
  60         public sealed class AssemblyName  : ICloneable, ISerializable, IDeserializationCallback, _AssemblyName {
  61 #endif
  62 #pragma warning disable 169
  63                 #region Synch with object-internals.h
  64                 string name;
  65                 string codebase;
  66                 int major, minor, build, revision;
  67                 CultureInfo cultureinfo;
  68                 AssemblyNameFlags flags;
  69                 AssemblyHashAlgorithm hashalg;
  70                 StrongNameKeyPair keypair;
  71                 byte[] publicKey;
  72                 byte[] keyToken;
  73                 AssemblyVersionCompatibility versioncompat;
  74                 Version version;
  75                 ProcessorArchitecture processor_architecture = ProcessorArchitecture.None;
  76                 #endregion
  77 #pragma warning restore 169
  78
  79                 public AssemblyName ()
  80                 {
  81                         // defaults
  82                         versioncompat = AssemblyVersionCompatibility.SameMachine;
  83                 }
  84
  85                 [MethodImpl (MethodImplOptions.InternalCall)]
  86                 static extern bool ParseName (AssemblyName aname, string assemblyName);
  87
  88                 public AssemblyName (string assemblyName)
  89                 {
  90                         if (assemblyName == null)
  91                                 throw new ArgumentNullException ("assemblyName");
  92                         if (assemblyName.Length < 1)
  93                                 throw new ArgumentException ("assemblyName cannot have zero length.");
  94
  95                         if (!ParseName (this, assemblyName))
  96                                 throw new FileLoadException ("The assembly name is invalid.");
  97                 }
  98
  99                 [MonoLimitation ("Not used, as the values are too limited;  Mono supports more")]
 100                 public ProcessorArchitecture ProcessorArchitecture {
 101                         get {
 102                                 return processor_architecture;
 103                         }
 104                         set {
 105                                 processor_architecture = value;
 106                         }
 107                 }
 108
 109                 internal AssemblyName (SerializationInfo si, StreamingContext sc)
 110                 {
 111                         name = si.GetString ("_Name");
 112                         codebase = si.GetString ("_CodeBase");
 113                         version = (Version)si.GetValue ("_Version", typeof (Version));
 114                         publicKey = (byte[])si.GetValue ("_PublicKey", typeof (byte[]));
 115                         keyToken = (byte[])si.GetValue ("_PublicKeyToken", typeof (byte[]));
 116                         hashalg = (AssemblyHashAlgorithm)si.GetValue ("_HashAlgorithm", typeof (AssemblyHashAlgorithm));
 117                         keypair = (StrongNameKeyPair)si.GetValue ("_StrongNameKeyPair", typeof (StrongNameKeyPair));
 118                         versioncompat = (AssemblyVersionCompatibility)si.GetValue ("_VersionCompatibility", typeof (AssemblyVersionCompatibility));
 119                         flags = (AssemblyNameFlags)si.GetValue ("_Flags", typeof (AssemblyNameFlags));
 120                         int lcid = si.GetInt32 ("_CultureInfo");
 121                         if (lcid != -1) cultureinfo = new CultureInfo (lcid);
 122                 }
 123
 124                 public string Name {
 125                         get { return name; }
 126                         set { name = value; }
 127                 }
 128
 129                 public string CodeBase {
 130                         get { return codebase; }
 131                         set { codebase = value; }
 132                 }
 133
 134                 public string EscapedCodeBase {
 135                         get {
 136                                 if (codebase == null)
 137                                         return null;
 138                                 return Uri.EscapeString (codebase, false, true, true);
 139                         }
 140                 }
 141
 142                 public CultureInfo CultureInfo {
 143                         get { return cultureinfo; }
 144                         set { cultureinfo = value; }
 145                 }
 146
 147                 public AssemblyNameFlags Flags {
 148                         get { return flags; }
 149                         set { flags = value; }
 150                 }
 151
 152                 public string FullName {
 153                         get {
 154                                 if (name == null)
 155                                         return string.Empty;
 156                                 StringBuilder fname = new StringBuilder ();
 157                                 if (Char.IsWhiteSpace (name [0]))
 158                                         fname.Append ("\"" + name + "\"");
 159                                 else
 160                                         fname.Append (name);
 161                                 if (Version != null) {
 162                                         fname.Append (", Version=");
 163                                         fname.Append (Version.ToString ());
 164                                 }
 165                                 if (cultureinfo != null) {
 166                                         fname.Append (", Culture=");
 167                                         if (cultureinfo.LCID == CultureInfo.InvariantCulture.LCID)
 168                                                 fname.Append ("neutral");
 169                                         else
 170                                                 fname.Append (cultureinfo.Name);
 171                                 }
 172                                 byte [] pub_tok = InternalGetPublicKeyToken ();
 173                                 if (pub_tok != null) {
 174                                         if (pub_tok.Length == 0)
 175                                                 fname.Append (", PublicKeyToken=null");
 176                                         else {
 177                                                 fname.Append (", PublicKeyToken=");
 178                                                 for (int i = 0; i < pub_tok.Length; i++)
 179                                                         fname.Append (pub_tok[i].ToString ("x2"));
 180                                         }
 181                                 }
 182
 183                                 if ((Flags & AssemblyNameFlags.Retargetable) != 0)
 184                                         fname.Append (", Retargetable=Yes");
 185
 186                                 return fname.ToString ();
 187                         }
 188                 }
 189
 190                 public AssemblyHashAlgorithm HashAlgorithm {
 191                         get { return hashalg; }
 192                         set { hashalg = value; }
 193                 }
 194
 195                 public StrongNameKeyPair KeyPair {
 196                         get { return keypair; }
 197                         set { keypair = value; }
 198                 }
 199
 200                 public Version Version {
 201                         get {
 202                                 return version;
 203                         }
 204
 205                         set {
 206                                 version = value;
 207                                 if (value == null)
 208                                         major = minor = build = revision = 0;
 209                                 else {
 210                                         major = value.Major;
 211                                         minor = value.Minor;
 212                                         build = value.Build;
 213                                         revision = value.Revision;
 214                                 }
 215                         }
 216                 }
 217
 218                 public AssemblyVersionCompatibility VersionCompatibility {
 219                         get { return versioncompat; }
 220                         set { versioncompat = value; }
 221                 }
 222
 223                 public override string ToString ()
 224                 {
 225                         string name = FullName;
 226                         return (name != null) ? name : base.ToString ();
 227                 }
 228
 229                 public byte[] GetPublicKey()
 230                 {
 231                         return publicKey;
 232                 }
 233
 234                 public byte[] GetPublicKeyToken ()
 235                 {
 236                         if (keyToken != null)
 237                                 return keyToken;
 238                         if (publicKey == null)
 239                                 return null;
 240
 241                                 if (publicKey.Length == 0)
 242                                         return EmptyArray<byte>.Value;
 243
 244                                 if (!IsPublicKeyValid)
 245                                         throw new  SecurityException ("The public key is not valid.");
 246
 247                                 keyToken = ComputePublicKeyToken ();
 248                                 return keyToken;
 249                 }
 250
 251                 private bool IsPublicKeyValid {
 252                         get {
 253                                 // check for ECMA key
 254                                 if (publicKey.Length == 16) {
 255                                         int i = 0;
 256                                         int sum = 0;
 257                                         while (i < publicKey.Length)
 258                                                 sum += publicKey [i++];
 259                                         if (sum == 4)
 260                                                 return true;
 261                                 }
 262
 263                                 switch (publicKey [0]) {
 264                                 case 0x00: // public key inside a header
 265                                         if (publicKey.Length > 12 && publicKey [12] == 0x06) {
 266 #if MOBILE
 267                                                 return true;
 268 #else
 269                                                 try {
 270                                                         CryptoConvert.FromCapiPublicKeyBlob (
 271                                                                 publicKey, 12);
 272                                                         return true;
 273                                                 } catch (CryptographicException) {
 274                                                 }
 275 #endif
 276                                         }
 277                                         break;
 278                                 case 0x06: // public key
 279 #if MOBILE
 280                                         return true;
 281 #else
 282                                         try {
 283                                                 CryptoConvert.FromCapiPublicKeyBlob (publicKey);
 284                                                 return true;
 285                                         } catch (CryptographicException) {
 286                                         }
 287                                         break;
 288 #endif
 289                                 case 0x07: // private key
 290                                         break;
 291                                 }
 292
 293                                 return false;
 294                         }
 295                 }
 296
 297                 private byte [] InternalGetPublicKeyToken ()
 298                 {
 299                         if (keyToken != null)
 300                                 return keyToken;
 301
 302                         if (publicKey == null)
 303                                 return null;
 304
 305                         if (publicKey.Length == 0)
 306                                 return EmptyArray<byte>.Value;
 307
 308                         if (!IsPublicKeyValid)
 309                                 throw new  SecurityException ("The public key is not valid.");
 310
 311                         return ComputePublicKeyToken ();
 312                 }
 313
 314                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 315                 extern unsafe static void get_public_token (byte* token, byte* pubkey, int len);
 316
 317                 private unsafe byte [] ComputePublicKeyToken ()
 318                 {
 319                         byte [] token = new byte [8];
 320                         fixed (byte* pkt = token)
 321                         fixed (byte *pk = publicKey)
 322                                 get_public_token (pkt, pk, publicKey.Length);
 323                         return token;
 324                 }
 325
 326                 public static bool ReferenceMatchesDefinition (AssemblyName reference, AssemblyName definition)
 327                 {
 328                         if (reference == null)
 329                                 throw new ArgumentNullException ("reference");
 330                         if (definition == null)
 331                                 throw new ArgumentNullException ("definition");
 332
 333                         // we only compare the simple assembly name to be consistent with MS .NET,
 334                         // which is the result of a bug in their implementation (see https://connect.microsoft.com/VisualStudio/feedback/details/752902)
 335                         return string.Equals (reference.Name, definition.Name, StringComparison.OrdinalIgnoreCase);
 336                 }
 337
 338                 public void SetPublicKey (byte[] publicKey)
 339                 {
 340                         if (publicKey == null)
 341                                 flags ^= AssemblyNameFlags.PublicKey;
 342                         else
 343                                 flags |= AssemblyNameFlags.PublicKey;
 344                         this.publicKey = publicKey;
 345                 }
 346
 347                 public void SetPublicKeyToken (byte[] publicKeyToken)
 348                 {
 349                         keyToken = publicKeyToken;
 350                 }
 351
 352                 [SecurityPermission (SecurityAction.Demand, SerializationFormatter = true)]
 353                 public void GetObjectData (SerializationInfo info, StreamingContext context)
 354                 {
 355                         if (info == null)
 356                                 throw new ArgumentNullException ("info");
 357
 358                         info.AddValue ("_Name", name);
 359                         info.AddValue ("_PublicKey", publicKey);
 360                         info.AddValue ("_PublicKeyToken", keyToken);
 361                         info.AddValue ("_CultureInfo", cultureinfo != null ? cultureinfo.LCID : -1);
 362                         info.AddValue ("_CodeBase", codebase);
 363                         info.AddValue ("_Version", Version);
 364                         info.AddValue ("_HashAlgorithm", hashalg);
 365                         info.AddValue ("_HashAlgorithmForControl", AssemblyHashAlgorithm.None);
 366                         info.AddValue ("_StrongNameKeyPair", keypair);
 367                         info.AddValue ("_VersionCompatibility", versioncompat);
 368                         info.AddValue ("_Flags", flags);
 369                         info.AddValue ("_HashForControl", null);
 370                 }
 371
 372                 public object Clone()
 373                 {
 374                         AssemblyName an = new AssemblyName ();
 375                         an.name = name;
 376                         an.codebase = codebase;
 377                         an.major = major;
 378                         an.minor = minor;
 379                         an.build = build;
 380                         an.revision = revision;
 381                         an.version = version;
 382                         an.cultureinfo = cultureinfo;
 383                         an.flags = flags;
 384                         an.hashalg = hashalg;
 385                         an.keypair = keypair;
 386                         an.publicKey = publicKey;
 387                         an.keyToken = keyToken;
 388                         an.versioncompat = versioncompat;
 389                         return an;
 390                 }
 391
 392                 public void OnDeserialization (object sender)
 393                 {
 394                         Version = version;
 395                 }
 396
 397                 public static AssemblyName GetAssemblyName (string assemblyFile)
 398                 {
 399                         if (assemblyFile == null)
 400                                 throw new ArgumentNullException ("assemblyFile");
 401
 402                         AssemblyName aname = new AssemblyName ();
 403                         Assembly.InternalGetAssemblyName (Path.GetFullPath (assemblyFile), aname);
 404                         return aname;
 405                 }
 406
 407 #if !MOBILE
 408                 void _AssemblyName.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 409                 {
 410                         throw new NotImplementedException ();
 411                 }
 412
 413                 void _AssemblyName.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 414                 {
 415                         throw new NotImplementedException ();
 416                 }
 417
 418                 void _AssemblyName.GetTypeInfoCount (out uint pcTInfo)
 419                 {
 420                         throw new NotImplementedException ();
 421                 }
 422
 423                 void _AssemblyName.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams,
 424                         IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 425                 {
 426                         throw new NotImplementedException ();
 427                 }
 428 #endif
 429
 430 #if NET_4_5
 431                 public string CultureName {
 432                         get {
 433                                 if (cultureinfo == null)
 434                                         return string.Empty;
 435                                 else if (cultureinfo.LCID == CultureInfo.InvariantCulture.LCID)
 436                                         return "neutral";
 437                                 else
 438                                         return cultureinfo.Name;
 439                         }
 440                 }
 441
 442                 [ComVisibleAttribute(false)]
 443                 public AssemblyContentType ContentType {
 444                         get { return AssemblyContentType.Default; }
 445                         set {
 446                                 if (value != AssemblyContentType.Default)
 447                                         throw new InvalidOperationException ();
 448                         }
 449                 }
 450 #endif
 451         }
 452 }