Beispiel #1
0
        static void Main(string[] args)
        {
            var item1    = new FileInfo("D:\\file1.txt");
            var item2    = new DirectoryInfo("D:\\test3");
            var account1 = new List <IdentityReference2>()
            {
                (IdentityReference2)@"raandree1\randr_000"
            };

            FileSystemAccessRule2.AddFileSystemAccessRule(item1, account1, FileSystemRights2.FullControl, AccessControlType.Allow, InheritanceFlags.ContainerInherit, PropagationFlags.None);

            return;

            var path    = @"C:\Windows";
            var account = @"raandree1\randr_000";
            var server  = "localhost";

            var sd = Directory.GetAccessControl(path, AccessControlSections.Access);
            var id = new IdentityReference2(account);

            EffectiveAccess.GetEffectiveAccess(new FileInfo(path), id, "localhost");

            var result1 = InvokeCommand("gi2 c:\\windows");

            var result2 = InvokeCommand(@"gi -Path D:\SingleMachine\ | Get-EffectiveAccess")
                          .Select(ace => ace.ImmediateBaseObject)
                          .Cast <FileSystemAccessRule2>().ToList();

            foreach (var ace in result2)
            {
                Console.WriteLine(string.Format("{0};{1}", ace.Account, ace.IsInherited));
            }

            Console.ReadKey();
        }
            public void DeniedRight(FileSystemRights deniedRight)
            {
                AddFileDenyACE(TestFile.FullName, CurrentIdentity, deniedRight);

                var rights = EffectiveAccess.ComputeAccess(TestFile.FullName, CurrentIdentity);

                Assert.False(rights.HasFlag(deniedRight));
            }
Beispiel #3
0
            public void WhenGroupIsDeniedWrite()
            {
                IdentityRights rights = new IdentityRights {
                    Identity = Group, Rights = FileSystemRights.FullControl
                };
                var descriptor = CreateSecurityDescriptor(null, denyRights: new[] { rights });
                var access     = EffectiveAccess.ComputeAccess(descriptor, CurrentIdentity);

                Assert.False(access.HasFlag(ACCESS_MASK.STANDARD_RIGHTS_ALL));
            }
Beispiel #4
0
            public void WhenGroupHasAllStandardRights()
            {
                var rights = new IdentityRights {
                    Identity = Group, Rights = FileSystemRights.FullControl
                };
                var descriptor = CreateSecurityDescriptor(new[] { rights });
                var access     = EffectiveAccess.ComputeAccess(descriptor, CurrentIdentity);

                Assert.True(access.HasFlag(ACCESS_MASK.STANDARD_RIGHTS_ALL));
            }
        public EffectiveAccess GetEffectiveAccess(string path)
        {
            var effectiveAccess = new EffectiveAccess {
                Read = true, Write = true
            };
            bool isDirectory;

            try
            {
                isDirectory = File.GetAttributes(path).HasFlag(FileAttributes.Directory);
            }
            catch (IOException)
            {
                return(new EffectiveAccess {
                    Read = false, Write = false
                });
            }
            catch (UnauthorizedAccessException)
            {
                return(new EffectiveAccess {
                    Read = false, Write = false
                });
            }

            if (isDirectory)
            {
                try
                {
                    Directory.GetFileSystemEntries(path);
                }
                catch (IOException)
                {
                    effectiveAccess.Read = false;
                }
                catch (UnauthorizedAccessException)
                {
                    effectiveAccess.Read = false;
                }

                if (effectiveAccess.Read)
                {
                    // create a FileSecurity object allowing full control so that we can be sure we
                    // have permissions to delete the file
                    var fileSecurity = new FileSecurity();
                    fileSecurity.AddAccessRule(new FileSystemAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), FileSystemRights.FullControl, AccessControlType.Allow));

                    try
                    {
                        // create the file in a using statement to allow the FileStream, which
                        // implements IDisposable, to be closed on completion
                        using (File.Create(path + "\\write-test.shareaudit", 1, FileOptions.DeleteOnClose, fileSecurity))
                        {
                        }
                    }
                    catch (IOException)
                    {
                        effectiveAccess.Write = false;
                    }
                    catch (UnauthorizedAccessException)
                    {
                        effectiveAccess.Write = false;
                    }
                }
            }
            else
            {
                try
                {
                    using (File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
                    {
                    }
                }
                catch (IOException)
                {
                    effectiveAccess.Read = false;
                }
                catch (UnauthorizedAccessException)
                {
                    effectiveAccess.Read = false;
                }

                if (effectiveAccess.Read)
                {
                    try
                    {
                        using (File.Open(path, FileMode.Open, FileAccess.Write, FileShare.ReadWrite))
                        {
                        }
                    }
                    catch (IOException)
                    {
                        effectiveAccess.Write = false;
                    }
                    catch (UnauthorizedAccessException)
                    {
                        effectiveAccess.Write = false;
                    }
                }
            }

            return(effectiveAccess);
        }
            public void FullControlOfOwnedFile()
            {
                var rights = EffectiveAccess.ComputeAccess(TestFile.FullName, CurrentIdentity);

                Assert.True(rights.HasFlag(FileSystemRights.FullControl));
            }
        protected override void ProcessRecord()
        {
            FileSystemInfo item = null;

            foreach (var path in paths)
            {
                EffectiveAccessInfo result = null;

                try
                {
                    item = this.GetFileSystemInfo2(path);
                }
                catch (Exception ex)
                {
                    this.WriteError(new ErrorRecord(ex, "ReadFileError", ErrorCategory.OpenError, path));
                    continue;
                }

                try
                {
                    result = EffectiveAccess.GetEffectiveAccess(item, account, serverName);

                    if (!result.FromRemote)
                    {
                        WriteWarning("The effective rights can only be computed based on group membership on this" +
                                     " computer. For more accurate results, calculate effective access rights on " +
                                     "the target computer");
                    }
                    if (result.OperationFailed && securityPrivilege == null)
                    {
                        var ex = new Exception(string.Format("Could not get effective permissions from machine '{0}' maybe because the 'Security' privilege is not enabled which might be required. Enable the priviliges using 'Enable-Privileges'. The error was '{1}'", serverName, result.AuthzException.Message), result.AuthzException);
                        WriteError(new ErrorRecord(ex, "GetEffectiveAccessError", ErrorCategory.ReadError, item));
                        continue;
                    }
                    else if (result.OperationFailed)
                    {
                        var ex = new Exception(string.Format("Could not get effective permissions from machine '{0}'. The error is '{1}'", serverName, result.AuthzException.Message), result.AuthzException);
                        WriteError(new ErrorRecord(ex, "GetEffectiveAccessError", ErrorCategory.ReadError, item));
                        continue;
                    }

                    if (excludeNoneAccessEntries && result.Ace.AccessRights == FileSystemRights2.None)
                    {
                        continue;
                    }
                }
                //not sure if the following catch block willb be invoked, testing needed.
                catch (UnauthorizedAccessException)
                {
                    try
                    {
                        var ownerInfo     = FileSystemOwner.GetOwner(item);
                        var previousOwner = ownerInfo.Owner;

                        FileSystemOwner.SetOwner(item, System.Security.Principal.WindowsIdentity.GetCurrent().User);

                        //--------------------

                        result = EffectiveAccess.GetEffectiveAccess(item, account, serverName);

                        if (!result.FromRemote)
                        {
                            WriteWarning("The effective rights can only be computed based on group membership on this" +
                                         " computer. For more accurate results, calculate effective access rights on " +
                                         "the target computer");
                        }
                        if (result.OperationFailed && securityPrivilege == null)
                        {
                            var ex = new Exception(string.Format("Could not get effective permissions from machine '{0}' maybe because the 'Security' privilege is not enabled which might be required. Enable the priviliges using 'Enable-Privileges'. The error was '{1}'", serverName, result.AuthzException.Message), result.AuthzException);
                            WriteError(new ErrorRecord(ex, "GetEffectiveAccessError", ErrorCategory.ReadError, item));
                            continue;
                        }
                        else if (result.OperationFailed)
                        {
                            var ex = new Exception(string.Format("Could not get effective permissions from machine '{0}'. The error is '{1}'", serverName, result.AuthzException.Message), result.AuthzException);
                            WriteError(new ErrorRecord(ex, "GetEffectiveAccessError", ErrorCategory.ReadError, item));
                            continue;
                        }

                        if (excludeNoneAccessEntries && result.Ace.AccessRights == FileSystemRights2.None)
                        {
                            continue;
                        }

                        //--------------------

                        FileSystemOwner.SetOwner(item, previousOwner);
                    }
                    catch (Exception ex2)
                    {
                        this.WriteError(new ErrorRecord(ex2, "ReadSecurityError", ErrorCategory.WriteError, path));
                    }
                }
                catch (Exception ex)
                {
                    WriteError(new ErrorRecord(ex, "ReadEffectivePermissionError", ErrorCategory.ReadError, path));
                }
                finally
                {
                    if (result != null)
                    {
                        WriteObject(result.Ace);
                    }
                }
            }
        }