public void CanDeleteFileWithDenyACL()
{
string file = GetFullPath("File with space");
string directory = Path.GetDirectoryName(file);
File.WriteAllText(file, string.Empty);
try
{
FileInfo fi = new FileInfo(file);
FileSecurity accessControl = fi.GetAccessControl(AccessControlSections.All);
accessControl.PurgeAccessRules(WindowsIdentity.GetCurrent().User);
accessControl.AddAccessRule(new FileSystemAccessRule(WindowsIdentity.GetCurrent().User, FileSystemRights.FullControl, AccessControlType.Deny));
fi.SetAccessControl(accessControl);
DirectoryInfo di = new DirectoryInfo(directory);
DirectorySecurity ds = di.GetAccessControl(AccessControlSections.All);
ds.PurgeAccessRules(WindowsIdentity.GetCurrent().User);
ds.AddAccessRule(new FileSystemAccessRule(WindowsIdentity.GetCurrent().User, FileSystemRights.CreateFiles, AccessControlType.Deny));
di.SetAccessControl(ds);
XAssert.IsTrue(File.Exists(file));
FileUtilities.DeleteFile(file);
XAssert.IsFalse(File.Exists(file));
}
finally
{
DirectoryInfo di = new DirectoryInfo(directory);
DirectorySecurity ds = di.GetAccessControl(AccessControlSections.All);
ds.PurgeAccessRules(WindowsIdentity.GetCurrent().User);
ds.AddAccessRule(new FileSystemAccessRule(WindowsIdentity.GetCurrent().User, FileSystemRights.FullControl, AccessControlType.Allow));
di.SetAccessControl(ds);
di.Delete(true);
}
}
public void CanDeleteWithOtherOpenHardlinks()
{
string hardlink1 = Path.Combine(TemporaryDirectory, "hardlink1");
File.WriteAllText(hardlink1, "asdf");
string hardlink2 = Path.Combine(TemporaryDirectory, "hardlink2");
XAssert.IsTrue(CreateHardLinkIfSupported(hardlink2, hardlink1));
// Open a handle to hardlink2 without FileShare Delete mode
using (new FileStream(hardlink2, FileMode.Open, FileAccess.Read, FileShare.Read))
{
BuildXLException exception = null;
try
{
FileUtilities.DeleteFile(hardlink1);
}
catch (BuildXLException ex)
{
exception = ex;
}
// Successfully delete file
XAssert.IsTrue(exception == null);
XAssert.IsFalse(File.Exists(hardlink1));
}
}
public void CanDeleteReadonlyFile()
{
string file = GetFullPath("File");
File.WriteAllText(file, string.Empty);
SetReadonlyFlag(file);
XAssert.IsTrue(File.Exists(file));
FileUtilities.DeleteFile(file);
XAssert.IsFalse(File.Exists(file));
}
public void CanDeleteRunningExecutableLink()
{
string exeLink = GetFullPath("DummyWaiterLink");
XAssert.IsTrue(CreateHardLinkIfSupported(link: exeLink, linkTarget: DummyWaiter.GetDummyWaiterExeLocation()));
using (var waiter = DummyWaiter.RunAndWait())
{
XAssert.IsTrue(File.Exists(exeLink));
FileUtilities.DeleteFile(exeLink);
XAssert.IsFalse(File.Exists(exeLink));
}
}
public void CanDeleteMemoryMappedFile()
{
string file = GetFullPath("File");
string link = GetFullPath("link");
WithNewFileMemoryMapped(
file,
() =>
{
if (!CreateHardLinkIfSupported(link: link, linkTarget: file))
{
return;
}
XAssert.IsTrue(File.Exists(link));
FileUtilities.DeleteFile(link);
XAssert.IsFalse(File.Exists(link));
});
}
public void CanDeleteReadonlyDenyWriteAttribute()
{
string file = GetFullPath("File");
string directory = Path.GetDirectoryName(file);
File.WriteAllText(file, string.Empty);
// Make the file readonly & deny modifying attributes
FileInfo fi = new FileInfo(file);
fi.IsReadOnly = true;
FileSecurity accessControl = fi.GetAccessControl(AccessControlSections.All);
accessControl.AddAccessRule(new FileSystemAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), FileSystemRights.WriteAttributes, AccessControlType.Deny));
fi.SetAccessControl(accessControl);
// see if we can delete it
XAssert.IsTrue(File.Exists(file));
FileUtilities.DeleteFile(file);
XAssert.IsFalse(File.Exists(file));
}
public void MoveTempDeletionCanReplaceRunningExecutable()
{
// Make a copy of DummyWaiter.exe to use as the test subject for deleting a running executable.
// Keep the copy in the same directory as the original since it will need runtime dlls
string dummyWaiterLocation = DummyWaiter.GetDummyWaiterExeLocation();
string exeCopy = dummyWaiterLocation + ".copy.exe";
File.Copy(dummyWaiterLocation, exeCopy);
using (var waiter = DummyWaiter.RunAndWait(exeCopy))
{
BuildXLException caughtException = null;
try
{
FileUtilities.DeleteFile(exeCopy);
}
catch (BuildXLException ex)
{
caughtException = ex;
}
XAssert.IsNotNull(caughtException, "Expected deletion without a tempCleaner to fail");
XAssert.IsTrue(File.Exists(exeCopy));
caughtException = null;
try
{
FileUtilities.DeleteFile(exeCopy, tempDirectoryCleaner: MoveDeleteCleaner);
}
catch (BuildXLException ex)
{
caughtException = ex;
}
XAssert.IsNull(caughtException, "Expected deletion with a MoveDeleteCleaner to succeed");
XAssert.IsFalse(File.Exists(exeCopy));
}
}
