// Dick Porter (dick@ximian.com)
//
// (C) Copyright 2003 Ximian, Inc.
+// Copyright (C) 2005 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.IO;
using System.Collections;
+using System.IO;
+using System.Security;
+using System.Security.Permissions;
+using System.Runtime.InteropServices;
+
+namespace System.CodeDom.Compiler {
-namespace System.CodeDom.Compiler
-{
+ [Serializable]
+ [PermissionSet (SecurityAction.LinkDemand, Unrestricted = true)]
public class TempFileCollection:ICollection, IEnumerable, IDisposable
{
Hashtable filehash;
bool keepfiles;
string basepath;
Random rnd;
+ string ownTempDir;
- public TempFileCollection(): this(null, false)
+ public TempFileCollection ()
+ : this (String.Empty, false)
{
}
- public TempFileCollection(string tempDir): this(tempDir, false)
+ public TempFileCollection(string tempDir)
+ : this (tempDir, false)
{
}
public TempFileCollection(string tempDir, bool keepFiles)
{
filehash=new Hashtable();
- tempdir=tempDir;
+ tempdir = (tempDir == null) ? String.Empty : tempDir;
keepfiles=keepFiles;
}
{
get {
if(basepath==null) {
- if (tempdir==null) {
- /* Get the system temp dir */
- MonoIO.GetTempPath(out tempdir);
- }
-
+
if (rnd == null)
rnd = new Random ();
- string random = rnd.Next (10000,99999).ToString ();
- basepath = Path.Combine (tempdir, random);
+ // note: this property *cannot* change TempDir property
+ string temp = tempdir;
+ if (temp.Length == 0)
+ temp = GetOwnTempDir ();
+
+ // Create a temporary file at the target directory. This ensures
+ // that the generated file name is unique.
+ FileStream f = null;
+ do {
+ int num = rnd.Next ();
+ num++;
+ basepath = Path.Combine (temp, num.ToString("x"));
+ string path = basepath + ".tmp";
+
+ try {
+ f = new FileStream (path, FileMode.CreateNew);
+ }
+ catch (System.IO.IOException) {
+ f = null;
+ continue;
+ }
+ catch {
+ // avoid endless loop
+ throw;
+ }
+ } while (f == null);
+
+ f.Close ();
+
+ // and you must have discovery access to the combined path
+ // note: the cache behaviour is tested in the CAS tests
+ if (SecurityManager.SecurityEnabled) {
+ new FileIOPermission (FileIOPermissionAccess.PathDiscovery, basepath).Demand ();
+ }
}
return(basepath);
}
}
+
+ string GetOwnTempDir ()
+ {
+ if (ownTempDir != null)
+ return ownTempDir;
+ // this call ensure the Environment permissions check
+ string basedir = Path.GetTempPath ();
+
+ // Create a subdirectory with the correct user permissions
+ int res = -1;
+ bool win32 = false;
+ switch (Environment.OSVersion.Platform) {
+ case PlatformID.Win32S:
+ case PlatformID.Win32Windows:
+ case PlatformID.Win32NT:
+ case PlatformID.WinCE:
+ win32 = true;
+ res = 0;
+ break;
+ }
+
+ do {
+ int num = rnd.Next ();
+ num++;
+ ownTempDir = Path.Combine (basedir, num.ToString("x"));
+ if (Directory.Exists (ownTempDir))
+ continue;
+ if (win32)
+ Directory.CreateDirectory (ownTempDir);
+ else
+ res = mkdir (ownTempDir, 0x1c0);
+ if (res != 0) {
+ if (!Directory.Exists (ownTempDir))
+ throw new IOException ();
+ // Somebody already created the dir, keep trying
+ }
+ } while (res != 0);
+ return ownTempDir;
+ }
+
+ int ICollection.Count {
+ get {
+ return filehash.Count;
+ }
+ }
+
public int Count
{
get {
public string TempDir
{
get {
- if(tempdir==null) {
- return(String.Empty);
- } else {
- return(tempdir);
- }
+ // note: we only return what we were supplied so there
+ // is no permission protecting this information
+ return tempdir;
}
}
object ICollection.SyncRoot {
get {
- return filehash.SyncRoot;
+ return null;
}
}
public void Delete()
{
- string[] filenames=new string[filehash.Count];
- filehash.Keys.CopyTo(filenames, 0);
+ bool allDeleted = true;
+ string[] filenames = new string[filehash.Count];
+ filehash.Keys.CopyTo (filenames, 0);
foreach(string file in filenames) {
if((bool)filehash[file]==false) {
File.Delete(file);
filehash.Remove(file);
- }
+ } else
+ allDeleted = false;
+ }
+ if (basepath != null) {
+ string tmpFile = basepath + ".tmp";
+ File.Delete (tmpFile);
+ basepath = null;
+ }
+ if (allDeleted && ownTempDir != null) {
+ Directory.Delete (ownTempDir, true);
+ ownTempDir = null;
}
}
+ IEnumerator IEnumerable.GetEnumerator ()
+ {
+ return(filehash.Keys.GetEnumerator());
+ }
+
public IEnumerator GetEnumerator()
{
return(filehash.Keys.GetEnumerator());
protected virtual void Dispose(bool disposing)
{
Delete();
+ if (disposing) {
+ GC.SuppressFinalize (true);
+ }
}
~TempFileCollection()
Dispose(false);
}
+ [DllImport ("libc")] private static extern int mkdir (string olpath, uint mode);
}
}
projects / mono.git / blobdiff