New tests.
[mono.git] / mcs / class / corlib / System.IO / FileInfo.cs
index 87a1f94747ab6e242e42da2700018f194ae938b0..004b145290683635b5d46cacbfef7dfc7d9dc8f5 100644 (file)
-//------------------------------------------------------------------------------\r
-// \r
-// System.IO.FileInfo.cs \r
-//\r
-// Copyright (C) 2001 Moonlight Enterprises, All Rights Reserved\r
-// \r
-// Author:         Jim Richardson, develop@wtfo-guru.com\r
-//                 Dan Lewis (dihlewis@yahoo.co.uk)\r
-// Created:        Monday, August 13, 2001 \r
-//\r
-//------------------------------------------------------------------------------\r
-\r
-using System;\r
-\r
-namespace System.IO {\r
-\r
+//------------------------------------------------------------------------------
+// 
+// System.IO.FileInfo.cs 
+//
+// Copyright (C) 2001 Moonlight Enterprises, All Rights Reserved
+// 
+// Author:         Jim Richardson, develop@wtfo-guru.com
+//                 Dan Lewis (dihlewis@yahoo.co.uk)
+// Created:        Monday, August 13, 2001 
+//
+//------------------------------------------------------------------------------
+
+//
+// Copyright (C) 2004, 2006 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System.Runtime.InteropServices;
+using System.Runtime.Serialization;
+using System.Security;
+
+#if !NET_2_1
+using System.Security.AccessControl;
+#endif
+
+namespace System.IO {
+
        [Serializable]
-       public sealed class FileInfo : FileSystemInfo {\r
-       \r
-               public FileInfo (string path) {\r
-                       CheckPath (path);\r
-               \r
-                       OriginalPath = path;\r
-                       FullPath = Path.GetFullPath (path);\r
-               }\r
-\r
-               // public properties\r
-\r
-               public override bool Exists {\r
-                       get {\r
-                               Refresh (false);\r
-\r
-                               if (stat.Attributes == MonoIO.InvalidFileAttributes)\r
-                                       return false;\r
-\r
-                               if ((stat.Attributes & FileAttributes.Directory) != 0)\r
-                                       return false;\r
-\r
-                               return true;\r
-                       }\r
-               }\r
-\r
-               public override string Name {\r
-                       get {\r
-                               return Path.GetFileName (FullPath);\r
-                       }\r
-               }\r
-\r
-               public long Length {\r
-                       get {\r
-                               if (!Exists)\r
-                                       throw new FileNotFoundException ("Could not find file \"" + OriginalPath + "\".");\r
-\r
-                               return stat.Length;\r
-                       }\r
-               }\r
-\r
-               public string DirectoryName {\r
-                       get {\r
-                               return Path.GetDirectoryName (FullPath);\r
-                       }\r
-               }\r
-\r
-               public DirectoryInfo Directory {\r
-                       get {\r
-                               return new DirectoryInfo (DirectoryName);\r
-                       }\r
-               }\r
-\r
-               // streamreader methods\r
-\r
-               public StreamReader OpenText () {\r
-                       return new StreamReader (Open (FileMode.Open, FileAccess.Read));\r
-               }\r
-\r
-               public StreamWriter CreateText () {\r
-                       return new StreamWriter (Open (FileMode.Create, FileAccess.Write));\r
-               }\r
-               \r
-               public StreamWriter AppendText () {\r
-                       return new StreamWriter (Open (FileMode.Append, FileAccess.Write));\r
-               }\r
-\r
-               // filestream methods\r
+       [ComVisible (true)]
+       public sealed class FileInfo : FileSystemInfo
+       {
+               private bool exists;
+
+#if MOONLIGHT
+               internal FileInfo ()
+               {
+               }
+#endif
+               public FileInfo (string fileName)
+               {
+                       if (fileName == null)
+                               throw new ArgumentNullException ("fileName");
+
+                       CheckPath (fileName);
+                       SecurityManager.EnsureElevatedPermissions (); // this is a no-op outside moonlight
+
+                       OriginalPath = fileName;
+                       FullPath = Path.GetFullPath (fileName);
+               }
+
+               private FileInfo (SerializationInfo info, StreamingContext context)
+                       : base (info, context)
+               {
+               }
+
+               internal override void InternalRefresh ()
+               {
+                       exists = File.Exists (FullPath);
+               }
+
+               // public properties
+
+               public override bool Exists {
+                       get {
+                               Refresh (false);
+
+                               if (stat.Attributes == MonoIO.InvalidFileAttributes)
+                                       return false;
+
+                               if ((stat.Attributes & FileAttributes.Directory) != 0)
+                                       return false;
+
+                               return exists;
+                       }
+               }
+
+               public override string Name {
+                       get {
+                               return Path.GetFileName (FullPath);
+                       }
+               }
+
+#if !NET_2_1
+               public bool IsReadOnly {
+                       get {
+                               if (!Exists)
+                                       throw new FileNotFoundException ("Could not find file \"" + OriginalPath + "\".", OriginalPath);
+                                       
+                               return ((stat.Attributes & FileAttributes.ReadOnly) != 0);
+                       }
+                               
+                       set {
+                               if (!Exists)
+                                       throw new FileNotFoundException ("Could not find file \"" + OriginalPath + "\".", OriginalPath);
+                                       
+                               FileAttributes attrs = File.GetAttributes(FullPath);
+
+                               if (value) 
+                                       attrs |= FileAttributes.ReadOnly;
+                               else
+                                       attrs &= ~FileAttributes.ReadOnly;
+
+                               File.SetAttributes(FullPath, attrs);
+                       }
+               }
+
+               [MonoLimitation ("File encryption isn't supported (even on NTFS).")]
+               [ComVisible (false)]
+               public void Encrypt ()
+               {
+                       // MS.NET support this only on NTFS file systems, i.e. it's a file-system (not a framework) feature.
+                       // otherwise it throws a NotSupportedException (or a PlatformNotSupportedException on older OS).
+                       // we throw the same (instead of a NotImplementedException) because most code should already be
+                       // handling this exception to work properly.
+                       throw new NotSupportedException (Locale.GetText ("File encryption isn't supported on any file system."));
+               }
+
+               [MonoLimitation ("File encryption isn't supported (even on NTFS).")]
+               [ComVisible (false)]
+               public void Decrypt ()
+               {
+                       // MS.NET support this only on NTFS file systems, i.e. it's a file-system (not a framework) feature.
+                       // otherwise it throws a NotSupportedException (or a PlatformNotSupportedException on older OS).
+                       // we throw the same (instead of a NotImplementedException) because most code should already be
+                       // handling this exception to work properly.
+                       throw new NotSupportedException (Locale.GetText ("File encryption isn't supported on any file system."));
+               }
+#endif
+
+               public long Length {
+                       get {
+                               if (!Exists)
+                                       throw new FileNotFoundException ("Could not find file \"" + OriginalPath + "\".", OriginalPath);
+
+                               return stat.Length;
+                       }
+               }
+
+               public string DirectoryName {
+                       get {
+                               return Path.GetDirectoryName (FullPath);
+                       }
+               }
+
+               public DirectoryInfo Directory {
+                       get {
+                               return new DirectoryInfo (DirectoryName);
+                       }
+               }
+
+               // streamreader methods
+
+               public StreamReader OpenText ()
+               {
+                       return new StreamReader (Open (FileMode.Open, FileAccess.Read));
+               }
+
+               public StreamWriter CreateText ()
+               {
+                       return new StreamWriter (Open (FileMode.Create, FileAccess.Write));
+               }
+               
+               public StreamWriter AppendText ()
+               {
+                       return new StreamWriter (Open (FileMode.Append, FileAccess.Write));
+               }
+
+               // filestream methods
 
                public FileStream Create ()
                {
                        return File.Create (FullPath);
                }
+
+               public FileStream OpenRead ()
+               {
+                       return Open (FileMode.Open, FileAccess.Read, FileShare.Read);
+               }
+
+               public FileStream OpenWrite ()
+               {
+                       return Open (FileMode.OpenOrCreate, FileAccess.Write);
+               }
+
+               public FileStream Open (FileMode mode)
+               {
+                       return Open (mode, FileAccess.ReadWrite);
+               }
+
+               public FileStream Open (FileMode mode, FileAccess access)
+               {
+                       return Open (mode, access, FileShare.None);
+               }
+
+               public FileStream Open (FileMode mode, FileAccess access, FileShare share)
+               {
+                       return new FileStream (FullPath, mode, access, share);
+               }
+
+               // file methods
+
+               public override void Delete ()
+               {
+                       MonoIOError error;
+
+                       SecurityManager.EnsureElevatedPermissions (); // this is a no-op outside moonlight
+
+                       if (!MonoIO.Exists (FullPath, out error))
+                               // a weird MS.NET behaviour
+                               return;
+
+                       if (MonoIO.ExistsDirectory (FullPath, out error))
+                               throw new UnauthorizedAccessException ("Access to the path \"" + FullPath + "\" is denied.");
+                       if (!MonoIO.DeleteFile (FullPath, out error))
+                               throw MonoIO.GetException (OriginalPath, error);
+               }
+
+               public void MoveTo (string destFileName)
+               {
+                       if (destFileName == null)
+                               throw new ArgumentNullException ("destFileName");
+                       if (destFileName == Name || destFileName == FullName)
+                               return;
+                       if (!File.Exists (FullPath))
+                               throw new FileNotFoundException ();
+
+                       File.Move (FullPath, destFileName);
+                       this.FullPath = Path.GetFullPath (destFileName);
+               }
+
+               public FileInfo CopyTo (string destFileName)
+               {
+                       return CopyTo (destFileName, false);
+               }
+
+               public FileInfo CopyTo (string destFileName, bool overwrite)
+               {
+                       if (destFileName == null)
+                               throw new ArgumentNullException ("destFileName");
+                       if (destFileName.Length == 0)
+                               throw new ArgumentException ("An empty file name is not valid.", "destFileName");
+
+                       string dest = Path.GetFullPath (destFileName);
+
+                       if (overwrite && File.Exists (dest))
+                               File.Delete (dest);
+
+                       File.Copy (FullPath, dest);
+               
+                       return new FileInfo (dest);
+               }
+
+               public override string ToString ()
+               {
+#if NET_2_1
+                       // for Moonlight we *never* return paths, since ToString is not [SecurityCritical] we simply return the Name
+                       return Name;
+#else
+                       return OriginalPath;
+#endif
+               }
+
+#if !NET_2_1
+               public FileSecurity GetAccessControl ()
+               {
+                       throw new NotImplementedException ();
+               }
+               
+               public FileSecurity GetAccessControl (AccessControlSections includeSections)
+               {
+                       throw new NotImplementedException ();
+               }
+
+               [ComVisible (false)]
+               public FileInfo Replace (string destinationFileName,
+                                        string destinationBackupFileName)
+               {
+                       string destinationFullPath = null;
+                       if (!Exists)
+                               throw new FileNotFoundException ();
+                       if (destinationFileName == null)
+                               throw new ArgumentNullException ("destinationFileName");
+                       if (destinationFileName.Length == 0)
+                               throw new ArgumentException ("An empty file name is not valid.", "destinationFileName");
+
+                       destinationFullPath = Path.GetFullPath (destinationFileName);
+
+                       if (!File.Exists (destinationFullPath))
+                               throw new FileNotFoundException ();
+
+                       FileAttributes attrs = File.GetAttributes (destinationFullPath);
+
+                       if ( (attrs & FileAttributes.ReadOnly) == FileAttributes.ReadOnly)
+                                       throw new UnauthorizedAccessException (); 
+
+                       if (destinationBackupFileName != null) {
+                               if (destinationBackupFileName.Length == 0)
+                                       throw new ArgumentException ("An empty file name is not valid.", "destinationBackupFileName");
+                               File.Copy (destinationFullPath, Path.GetFullPath (destinationBackupFileName), true);
+                       }
+                       File.Copy (FullPath, destinationFullPath,true);
+                       File.Delete (FullPath);
+                       return new FileInfo (destinationFullPath);
+               }
                
-               \r
-               public FileStream OpenRead () {\r
-                       return Open (FileMode.Open, FileAccess.Read);\r
-               }\r
-\r
-               public FileStream OpenWrite () {\r
-                       return Open (FileMode.OpenOrCreate, FileAccess.Write);\r
-               }\r
-\r
-               public FileStream Open (FileMode mode) {\r
-                       return Open (mode, FileAccess.ReadWrite);\r
-               }\r
-\r
-               public FileStream Open (FileMode mode, FileAccess access) {\r
-                       return Open (mode, access, FileShare.None);\r
-               }\r
-\r
-               public FileStream Open (FileMode mode, FileAccess access, FileShare share) {\r
-                       return new FileStream (FullPath, mode, access, share);\r
-               }\r
-\r
-               // file methods\r
-\r
-               public override void Delete () {\r
-                       if (!MonoIO.Exists (FullPath))          // a weird MS.NET behaviour\r
-                               return;\r
-               \r
-                       if (!MonoIO.DeleteFile (FullPath))\r
-                               throw MonoIO.GetException (OriginalPath);\r
-               }\r
-               \r
-               public void MoveTo (string dest) {\r
-                       File.Move (FullPath, dest);\r
-               }\r
-\r
-               public FileInfo CopyTo (string path) {\r
-                       return CopyTo (path, false);\r
-               }\r
-\r
-               public FileInfo CopyTo (string path, bool overwrite) {\r
-                       string dest = Path.GetFullPath (path);\r
-                       File.Copy (FullPath, dest);\r
-               \r
-                       return new FileInfo (dest);\r
-               }\r
-\r
-               public override string ToString () {\r
-                       return OriginalPath;\r
-               }\r
-       }\r
-}\r
+               [ComVisible (false)]
+               [MonoLimitation ("We ignore the ignoreMetadataErrors parameter")]
+               public FileInfo Replace (string destinationFileName,
+                                        string destinationBackupFileName,
+                                        bool ignoreMetadataErrors)
+               {
+                       return Replace (destinationFileName, destinationBackupFileName);
+               }
+
+               public void SetAccessControl (FileSecurity fileSecurity)
+               {
+                       throw new NotImplementedException ();
+               }
+#endif
+       }
+}