private void Verify_FileSecurity_CreateFile(FileMode mode, FileSystemRights rights, FileShare share, int bufferSize, FileOptions options, FileSecurity expectedSecurity)
{
using var tempRootDir = new TempAclDirectory();
string path = tempRootDir.GenerateSubItemPath();
var fileInfo = new FileInfo(path);
using (FileStream fs = fileInfo.Create(mode, rights, share, bufferSize, options, expectedSecurity))
{
Assert.True(fileInfo.Exists);
tempRootDir.CreatedSubfiles.Add(fileInfo);
var actualFileInfo = new FileInfo(path);
FileSecurity actualSecurity = actualFileInfo.GetAccessControl();
if (expectedSecurity != null)
{
VerifyAccessSecurity(expectedSecurity, actualSecurity);
}
else
{
int count = actualSecurity.GetAccessRules(includeExplicit: true, includeInherited: false, typeof(SecurityIdentifier)).Count;
Assert.Equal(0, count);
}
}
}
public void FileInfo_Create_FileSecurity_DenyAccessRule(FileSystemRights rightsToDeny)
{
var expectedSecurity = new FileSecurity();
var identity = new SecurityIdentifier(WellKnownSidType.BuiltinUsersSid, null);
// Add write deny rule
var denyAccessRule = new FileSystemAccessRule(identity, rightsToDeny, AccessControlType.Deny);
expectedSecurity.AddAccessRule(denyAccessRule);
using var tempRootDir = new TempAclDirectory();
string path = tempRootDir.GenerateSubItemPath();
var fileInfo = new FileInfo(path);
using FileStream stream = fileInfo.Create(
FileMode.CreateNew,
FileSystemRights.Write, // Create expects at least one write right
FileShare.None,
DefaultBufferSize,
FileOptions.None,
expectedSecurity);
Assert.True(fileInfo.Exists);
tempRootDir.CreatedSubfiles.Add(fileInfo);
var actualInfo = new FileInfo(fileInfo.FullName);
FileSecurity actualSecurity = actualInfo.GetAccessControl(AccessControlSections.Access);
VerifyAccessSecurity(expectedSecurity, actualSecurity);
}
public void FileInfo_Create_DirectoryNotFound()
{
using var tempRootDir = new TempAclDirectory();
string path = Path.Combine(tempRootDir.GenerateSubItemPath(), "file.txt");
var info = new FileInfo(path);
var security = new FileSecurity();
Assert.Throws <DirectoryNotFoundException>(() =>
info.Create(FileMode.CreateNew, FileSystemRights.FullControl, FileShare.None, DefaultBufferSize, FileOptions.None, security));
}
public void DirectoryInfo_Create_NotFound_FullControl()
{
using var tempRootDir = new TempAclDirectory();
string dirPath = Path.Combine(tempRootDir.GenerateSubItemPath(), "ParentDoesNotExist");
var dirInfo = new DirectoryInfo(dirPath);
var security = GetDirectorySecurity(FileSystemRights.FullControl);
// Succeeds because it creates the missing parent folder
CreateDirectoryWithSecurity(dirInfo, security);
}
public void DirectoryInfo_Create_NotFound()
{
using var tempRootDir = new TempAclDirectory();
string dirPath = Path.Combine(tempRootDir.GenerateSubItemPath(), "ParentDoesNotExist");
var dirInfo = new DirectoryInfo(dirPath);
var security = new DirectorySecurity();
// Fails because the DirectorySecurity lacks any rights to create parent folder
Assert.Throws <UnauthorizedAccessException>(() => CreateDirectoryWithSecurity(dirInfo, security));
}
private void Verify_DirectorySecurity_CreateDirectory(DirectorySecurity expectedSecurity)
{
using var tempRootDir = new TempAclDirectory();
string path = tempRootDir.GenerateSubItemPath();
DirectoryInfo dirInfo = expectedSecurity.CreateDirectory(path);
Assert.True(dirInfo.Exists);
tempRootDir.CreatedSubdirectories.Add(dirInfo);
var actualDirInfo = new DirectoryInfo(path);
DirectorySecurity actualSecurity = actualDirInfo.GetAccessControl(AccessControlSections.Access);
VerifyAccessSecurity(expectedSecurity, actualSecurity);
}
public void DirectorySecurity_CreateDirectory_DirectoryAlreadyExists()
{
using var tempRootDir = new TempAclDirectory();
string path = tempRootDir.GenerateSubItemPath();
DirectorySecurity expectedSecurity = GetDirectorySecurity(FileSystemRights.FullControl);
DirectoryInfo dirInfo = expectedSecurity.CreateDirectory(path);
Assert.True(dirInfo.Exists);
tempRootDir.CreatedSubdirectories.Add(dirInfo);
var basicSecurity = new DirectorySecurity();
// Already exists, existingDirInfo should have the original security, not the new basic security
DirectoryInfo existingDirInfo = basicSecurity.CreateDirectory(path);
DirectorySecurity actualSecurity = existingDirInfo.GetAccessControl(AccessControlSections.Access);
VerifyAccessSecurity(expectedSecurity, actualSecurity);
}