diff options
Diffstat (limited to 'Duplicati/Library/Common/IO/SystemIOWindows.cs')
| -rw-r--r-- | Duplicati/Library/Common/IO/SystemIOWindows.cs | 167 |
1 files changed, 92 insertions, 75 deletions
diff --git a/Duplicati/Library/Common/IO/SystemIOWindows.cs b/Duplicati/Library/Common/IO/SystemIOWindows.cs index 52f316576..adf797d2a 100644 --- a/Duplicati/Library/Common/IO/SystemIOWindows.cs +++ b/Duplicati/Library/Common/IO/SystemIOWindows.cs @@ -29,20 +29,24 @@ namespace Duplicati.Library.Common.IO {
public struct SystemIOWindows : ISystemIO
{
- private const string UNCPREFIX = PathInternalWindows.ExtendedDevicePathPrefix;
- private const string UNCPREFIX_SERVER = PathInternalWindows.UncExtendedPathPrefix;
- private const string PATHPREFIX_SERVER = PathInternalWindows.UncPathPrefix;
- private const string PATHPREFIX_SERVER_ALT = @"//";
+ // Based on the constant names used in
+ // https://github.com/dotnet/runtime/blob/v5.0.12/src/libraries/Common/src/System/IO/PathInternal.Windows.cs
+ private const string ExtendedDevicePathPrefix = @"\\?\";
+ private const string UncPathPrefix = @"\\";
+ private const string AltUncPathPrefix = @"//";
+ private const string UncExtendedPathPrefix = @"\\?\UNC\";
+
private static readonly string DIRSEP = Util.DirectorySeparatorString;
/// <summary>
- /// Prefix path with one of the UNC prefixes, but only if it's a fully
- /// qualified path with no relative components (i.e., with no "." or
- /// ".." as part of the path).
+ /// Prefix path with one of the extended device path prefixes
+ /// (@"\\?\" or @"\\?\UNC\") but only if it's a fully qualified
+ /// path with no relative components (i.e., with no "." or ".."
+ /// as part of the path).
/// </summary>
- public static string PrefixWithUNC(string path)
+ public static string AddExtendedDevicePathPrefix(string path)
{
- if (IsPrefixedWithUNC(path))
+ if (IsPrefixedWithExtendedDevicePathPrefix(path))
{
// For example: \\?\C:\Temp\foo.txt or \\?\UNC\example.com\share\foo.txt
return path;
@@ -50,36 +54,44 @@ namespace Duplicati.Library.Common.IO else
{
var hasRelativePathComponents = HasRelativePathComponents(path);
- if (IsPrefixedWithBasicUNC(path) && !hasRelativePathComponents)
+ if (IsPrefixedWithUncPathPrefix(path) && !hasRelativePathComponents)
{
// For example: \\example.com\share\foo.txt or //example.com/share/foo.txt
- return UNCPREFIX_SERVER + ConvertSlashes(path.Substring(PATHPREFIX_SERVER.Length));
+ return UncExtendedPathPrefix + ConvertSlashes(path.Substring(UncPathPrefix.Length));
}
else if (DotNetRuntimePathWindows.IsPathFullyQualified(path) && !hasRelativePathComponents)
{
// For example: C:\Temp\foo.txt or C:/Temp/foo.txt
- return UNCPREFIX + ConvertSlashes(path);
+ return ExtendedDevicePathPrefix + ConvertSlashes(path);
}
else
{
// A relative path or a fully qualified path with relative
- // path components so the UNC prefix cannot be applied.
+ // path components so the extended device path prefixes
+ // cannot be applied.
+ //
// For example: foo.txt or C:\Temp\..\foo.txt
return path;
}
}
}
-
- private static bool IsPrefixedWithBasicUNC(string path)
+
+ /// <summary>
+ /// Returns true if prefixed with @"\\" or @"//".
+ /// </summary>
+ private static bool IsPrefixedWithUncPathPrefix(string path)
{
- return path.StartsWith(PATHPREFIX_SERVER, StringComparison.Ordinal) ||
- path.StartsWith(PATHPREFIX_SERVER_ALT, StringComparison.Ordinal);
+ return path.StartsWith(UncPathPrefix, StringComparison.Ordinal) ||
+ path.StartsWith(AltUncPathPrefix, StringComparison.Ordinal);
}
- private static bool IsPrefixedWithUNC(string path)
+ /// <summary>
+ /// Returns true if prefixed with @"\\?\UNC\" or @"\\?\".
+ /// </summary>
+ private static bool IsPrefixedWithExtendedDevicePathPrefix(string path)
{
- return path.StartsWith(UNCPREFIX_SERVER, StringComparison.Ordinal) ||
- path.StartsWith(UNCPREFIX, StringComparison.Ordinal);
+ return path.StartsWith(UncExtendedPathPrefix, StringComparison.Ordinal) ||
+ path.StartsWith(ExtendedDevicePathPrefix, StringComparison.Ordinal);
}
private static string[] relativePathComponents = new[] { ".", ".." };
@@ -108,17 +120,22 @@ namespace Duplicati.Library.Common.IO }
}
- public static string StripUNCPrefix(string path)
+ /// <summary>
+ /// Removes either of the extended device path prefixes
+ /// (@"\\?\" or @"\\?\UNC\") if <paramref name="path"/> is prefixed
+ /// with one of them.
+ /// </summary>
+ public static string RemoveExtendedDevicePathPrefix(string path)
{
- if (path.StartsWith(UNCPREFIX_SERVER, StringComparison.Ordinal))
+ if (path.StartsWith(UncExtendedPathPrefix, StringComparison.Ordinal))
{
// @"\\?\UNC\example.com\share\file.txt" to @"\\example.com\share\file.txt"
- return PATHPREFIX_SERVER + path.Substring(UNCPREFIX_SERVER.Length);
+ return UncPathPrefix + path.Substring(UncExtendedPathPrefix.Length);
}
- else if (path.StartsWith(UNCPREFIX, StringComparison.Ordinal))
+ else if (path.StartsWith(ExtendedDevicePathPrefix, StringComparison.Ordinal))
{
// @"\\?\C:\file.txt" to @"C:\file.txt"
- return path.Substring(UNCPREFIX.Length);
+ return path.Substring(ExtendedDevicePathPrefix.Length);
}
else
{
@@ -216,100 +233,100 @@ namespace Duplicati.Library.Common.IO private System.Security.AccessControl.FileSystemSecurity GetAccessControlDir(string path)
{
- return System.IO.Directory.GetAccessControl(PrefixWithUNC(path));
+ return System.IO.Directory.GetAccessControl(AddExtendedDevicePathPrefix(path));
}
private System.Security.AccessControl.FileSystemSecurity GetAccessControlFile(string path)
{
- return System.IO.File.GetAccessControl(PrefixWithUNC(path));
+ return System.IO.File.GetAccessControl(AddExtendedDevicePathPrefix(path));
}
private void SetAccessControlFile(string path, FileSecurity rules)
{
- System.IO.File.SetAccessControl(PrefixWithUNC(path), rules);
+ System.IO.File.SetAccessControl(AddExtendedDevicePathPrefix(path), rules);
}
private void SetAccessControlDir(string path, DirectorySecurity rules)
{
- System.IO.Directory.SetAccessControl(PrefixWithUNC(path), rules);
+ System.IO.Directory.SetAccessControl(AddExtendedDevicePathPrefix(path), rules);
}
#region ISystemIO implementation
public void DirectoryCreate(string path)
{
- System.IO.Directory.CreateDirectory(PrefixWithUNC(path));
+ System.IO.Directory.CreateDirectory(AddExtendedDevicePathPrefix(path));
}
public void DirectoryDelete(string path, bool recursive)
{
- System.IO.Directory.Delete(PrefixWithUNC(path), recursive);
+ System.IO.Directory.Delete(AddExtendedDevicePathPrefix(path), recursive);
}
public bool DirectoryExists(string path)
{
- return System.IO.Directory.Exists(PrefixWithUNC(path));
+ return System.IO.Directory.Exists(AddExtendedDevicePathPrefix(path));
}
public void DirectoryMove(string sourceDirName, string destDirName)
{
- System.IO.Directory.Move(PrefixWithUNC(sourceDirName), PrefixWithUNC(destDirName));
+ System.IO.Directory.Move(AddExtendedDevicePathPrefix(sourceDirName), AddExtendedDevicePathPrefix(destDirName));
}
public void FileDelete(string path)
{
- System.IO.File.Delete(PrefixWithUNC(path));
+ System.IO.File.Delete(AddExtendedDevicePathPrefix(path));
}
public void FileSetLastWriteTimeUtc(string path, DateTime time)
{
- System.IO.File.SetLastWriteTimeUtc(PrefixWithUNC(path), time);
+ System.IO.File.SetLastWriteTimeUtc(AddExtendedDevicePathPrefix(path), time);
}
public void FileSetCreationTimeUtc(string path, DateTime time)
{
- System.IO.File.SetCreationTimeUtc(PrefixWithUNC(path), time);
+ System.IO.File.SetCreationTimeUtc(AddExtendedDevicePathPrefix(path), time);
}
public DateTime FileGetLastWriteTimeUtc(string path)
{
- return System.IO.File.GetLastWriteTimeUtc(PrefixWithUNC(path));
+ return System.IO.File.GetLastWriteTimeUtc(AddExtendedDevicePathPrefix(path));
}
public DateTime FileGetCreationTimeUtc(string path)
{
- return System.IO.File.GetCreationTimeUtc(PrefixWithUNC(path));
+ return System.IO.File.GetCreationTimeUtc(AddExtendedDevicePathPrefix(path));
}
public bool FileExists(string path)
{
- return System.IO.File.Exists(PrefixWithUNC(path));
+ return System.IO.File.Exists(AddExtendedDevicePathPrefix(path));
}
public System.IO.FileStream FileOpenRead(string path)
{
- return System.IO.File.Open(PrefixWithUNC(path), System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.ReadWrite);
+ return System.IO.File.Open(AddExtendedDevicePathPrefix(path), System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.ReadWrite);
}
public System.IO.FileStream FileOpenWrite(string path)
{
return !FileExists(path)
? FileCreate(path)
- : System.IO.File.OpenWrite(PrefixWithUNC(path));
+ : System.IO.File.OpenWrite(AddExtendedDevicePathPrefix(path));
}
public System.IO.FileStream FileCreate(string path)
{
- return System.IO.File.Create(PrefixWithUNC(path));
+ return System.IO.File.Create(AddExtendedDevicePathPrefix(path));
}
public System.IO.FileAttributes GetFileAttributes(string path)
{
- return System.IO.File.GetAttributes(PrefixWithUNC(path));
+ return System.IO.File.GetAttributes(AddExtendedDevicePathPrefix(path));
}
public void SetFileAttributes(string path, System.IO.FileAttributes attributes)
{
- System.IO.File.SetAttributes(PrefixWithUNC(path), attributes);
+ System.IO.File.SetAttributes(AddExtendedDevicePathPrefix(path), attributes);
}
/// <summary>
@@ -321,7 +338,7 @@ namespace Duplicati.Library.Common.IO {
try
{
- return AlphaFS.File.GetLinkTargetInfo(PrefixWithUNC(file)).PrintName;
+ return AlphaFS.File.GetLinkTargetInfo(AddExtendedDevicePathPrefix(file)).PrintName;
}
catch (AlphaFS.NotAReparsePointException) { }
catch (AlphaFS.UnrecognizedReparsePointException) { }
@@ -334,132 +351,132 @@ namespace Duplicati.Library.Common.IO public IEnumerable<string> EnumerateFileSystemEntries(string path)
{
- return System.IO.Directory.EnumerateFileSystemEntries(PrefixWithUNC(path)).Select(StripUNCPrefix);
+ return System.IO.Directory.EnumerateFileSystemEntries(AddExtendedDevicePathPrefix(path)).Select(RemoveExtendedDevicePathPrefix);
}
public IEnumerable<string> EnumerateFiles(string path)
{
- return System.IO.Directory.EnumerateFiles(PrefixWithUNC(path)).Select(StripUNCPrefix);
+ return System.IO.Directory.EnumerateFiles(AddExtendedDevicePathPrefix(path)).Select(RemoveExtendedDevicePathPrefix);
}
public IEnumerable<string> EnumerateFiles(string path, string searchPattern, SearchOption searchOption)
{
- return System.IO.Directory.EnumerateFiles(PrefixWithUNC(path), searchPattern, searchOption).Select(StripUNCPrefix);
+ return System.IO.Directory.EnumerateFiles(AddExtendedDevicePathPrefix(path), searchPattern, searchOption).Select(RemoveExtendedDevicePathPrefix);
}
public string PathGetFileName(string path)
{
- return StripUNCPrefix(System.IO.Path.GetFileName(PrefixWithUNC(path)));
+ return RemoveExtendedDevicePathPrefix(System.IO.Path.GetFileName(AddExtendedDevicePathPrefix(path)));
}
public string PathGetDirectoryName(string path)
{
- return StripUNCPrefix(System.IO.Path.GetDirectoryName(PrefixWithUNC(path)));
+ return RemoveExtendedDevicePathPrefix(System.IO.Path.GetDirectoryName(AddExtendedDevicePathPrefix(path)));
}
public string PathGetExtension(string path)
{
- return StripUNCPrefix(System.IO.Path.GetExtension(PrefixWithUNC(path)));
+ return RemoveExtendedDevicePathPrefix(System.IO.Path.GetExtension(AddExtendedDevicePathPrefix(path)));
}
public string PathChangeExtension(string path, string extension)
{
- return StripUNCPrefix(System.IO.Path.ChangeExtension(PrefixWithUNC(path), extension));
+ return RemoveExtendedDevicePathPrefix(System.IO.Path.ChangeExtension(AddExtendedDevicePathPrefix(path), extension));
}
public void DirectorySetLastWriteTimeUtc(string path, DateTime time)
{
- System.IO.Directory.SetLastWriteTimeUtc(PrefixWithUNC(path), time);
+ System.IO.Directory.SetLastWriteTimeUtc(AddExtendedDevicePathPrefix(path), time);
}
public void DirectorySetCreationTimeUtc(string path, DateTime time)
{
- System.IO.Directory.SetCreationTimeUtc(PrefixWithUNC(path), time);
+ System.IO.Directory.SetCreationTimeUtc(AddExtendedDevicePathPrefix(path), time);
}
public void FileMove(string source, string target)
{
- System.IO.File.Move(PrefixWithUNC(source), PrefixWithUNC(target));
+ System.IO.File.Move(AddExtendedDevicePathPrefix(source), AddExtendedDevicePathPrefix(target));
}
public long FileLength(string path)
{
- return new System.IO.FileInfo(PrefixWithUNC(path)).Length;
+ return new System.IO.FileInfo(AddExtendedDevicePathPrefix(path)).Length;
}
public string GetPathRoot(string path)
{
- if (IsPrefixedWithUNC(path))
+ if (IsPrefixedWithExtendedDevicePathPrefix(path))
{
return Path.GetPathRoot(path);
}
else
{
- return StripUNCPrefix(Path.GetPathRoot(PrefixWithUNC(path)));
+ return RemoveExtendedDevicePathPrefix(Path.GetPathRoot(AddExtendedDevicePathPrefix(path)));
}
}
public string[] GetDirectories(string path)
{
- if (IsPrefixedWithUNC(path))
+ if (IsPrefixedWithExtendedDevicePathPrefix(path))
{
return Directory.GetDirectories(path);
}
else
{
- return Directory.GetDirectories(PrefixWithUNC(path)).Select(StripUNCPrefix).ToArray();
+ return Directory.GetDirectories(AddExtendedDevicePathPrefix(path)).Select(RemoveExtendedDevicePathPrefix).ToArray();
}
}
public string[] GetFiles(string path)
{
- if (IsPrefixedWithUNC(path))
+ if (IsPrefixedWithExtendedDevicePathPrefix(path))
{
return Directory.GetFiles(path);
}
else
{
- return Directory.GetFiles(PrefixWithUNC(path)).Select(StripUNCPrefix).ToArray();
+ return Directory.GetFiles(AddExtendedDevicePathPrefix(path)).Select(RemoveExtendedDevicePathPrefix).ToArray();
}
}
public string[] GetFiles(string path, string searchPattern)
{
- if (IsPrefixedWithUNC(path))
+ if (IsPrefixedWithExtendedDevicePathPrefix(path))
{
return Directory.GetFiles(path, searchPattern);
}
else
{
- return Directory.GetFiles(PrefixWithUNC(path), searchPattern).Select(StripUNCPrefix).ToArray();
+ return Directory.GetFiles(AddExtendedDevicePathPrefix(path), searchPattern).Select(RemoveExtendedDevicePathPrefix).ToArray();
}
}
public DateTime GetCreationTimeUtc(string path)
{
- return Directory.GetCreationTimeUtc(PrefixWithUNC(path));
+ return Directory.GetCreationTimeUtc(AddExtendedDevicePathPrefix(path));
}
public DateTime GetLastWriteTimeUtc(string path)
{
- return Directory.GetLastWriteTimeUtc(PrefixWithUNC(path));
+ return Directory.GetLastWriteTimeUtc(AddExtendedDevicePathPrefix(path));
}
public IEnumerable<string> EnumerateDirectories(string path)
{
- if (IsPrefixedWithUNC(path))
+ if (IsPrefixedWithExtendedDevicePathPrefix(path))
{
return Directory.EnumerateDirectories(path);
}
else
{
- return Directory.EnumerateDirectories(PrefixWithUNC(path)).Select(StripUNCPrefix);
+ return Directory.EnumerateDirectories(AddExtendedDevicePathPrefix(path)).Select(RemoveExtendedDevicePathPrefix);
}
}
public void FileCopy(string source, string target, bool overwrite)
{
- File.Copy(PrefixWithUNC(source), PrefixWithUNC(target), overwrite);
+ File.Copy(AddExtendedDevicePathPrefix(source), AddExtendedDevicePathPrefix(target), overwrite);
}
public string PathGetFullPath(string path)
@@ -469,19 +486,19 @@ namespace Duplicati.Library.Common.IO // 2. If path is not already prefixed with \\?\, the return value should also not be prefixed
// 3. If path is relative or has relative components, that should be resolved by calling Path.GetFullPath()
// 4. If path is not relative and has no relative components, prefix with \\?\ to prevent normalization from munging "problematic Windows paths"
- if (IsPrefixedWithUNC(path))
+ if (IsPrefixedWithExtendedDevicePathPrefix(path))
{
return path;
}
else
{
- return StripUNCPrefix(Path.GetFullPath(PrefixWithUNC(path)));
+ return RemoveExtendedDevicePathPrefix(Path.GetFullPath(AddExtendedDevicePathPrefix(path)));
}
}
public IFileEntry DirectoryEntry(string path)
{
- var dInfo = new DirectoryInfo(PrefixWithUNC(path));
+ var dInfo = new DirectoryInfo(AddExtendedDevicePathPrefix(path));
return new FileEntry(dInfo.Name, 0, dInfo.LastAccessTime, dInfo.LastWriteTime)
{
IsFolder = true
@@ -490,7 +507,7 @@ namespace Duplicati.Library.Common.IO public IFileEntry FileEntry(string path)
{
- var fileInfo = new FileInfo(PrefixWithUNC(path));
+ var fileInfo = new FileInfo(AddExtendedDevicePathPrefix(path));
return new FileEntry(fileInfo.Name, fileInfo.Length, fileInfo.LastAccessTime, fileInfo.LastWriteTime);
}
@@ -582,11 +599,11 @@ namespace Duplicati.Library.Common.IO if (asDir)
{
- Alphaleonis.Win32.Filesystem.Directory.CreateSymbolicLink(PrefixWithUNC(symlinkfile), target, AlphaFS.PathFormat.LongFullPath);
+ Alphaleonis.Win32.Filesystem.Directory.CreateSymbolicLink(AddExtendedDevicePathPrefix(symlinkfile), target, AlphaFS.PathFormat.LongFullPath);
}
else
{
- Alphaleonis.Win32.Filesystem.File.CreateSymbolicLink(PrefixWithUNC(symlinkfile), target, AlphaFS.PathFormat.LongFullPath);
+ Alphaleonis.Win32.Filesystem.File.CreateSymbolicLink(AddExtendedDevicePathPrefix(symlinkfile), target, AlphaFS.PathFormat.LongFullPath);
}
//Sadly we do not get a notification if the creation fails :(
|