Class: Puppet::FileSystem::Windows

Inherits:
Posix show all
Defined in:
lib/puppet/file_system/windows.rb

Constant Summary collapse

FULL_CONTROL = 
Puppet::Util::Windows::File::FILE_ALL_ACCESS
FILE_READ = 
Puppet::Util::Windows::File::FILE_GENERIC_READ
ACCESS_DENIED =

docs.microsoft.com/en-us/windows/desktop/debug/system-error-codes–0-499-

5
SHARING_VIOLATION = 
32
LOCK_VIOLATION = 
33

Instance Method Summary collapse

Methods inherited from Posix

#binread, #compare_stream

Methods inherited from FileImpl

#assert_path, #basename, #binread, #children, #compare_stream, #dir, #directory?, #each_line, #exclusive_create, #exclusive_open, #executable?, #file?, #mkpath, #path_string, #pathname, #read, #size, #touch, #writable?

Instance Method Details

#chmod(mode, path) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 107

def chmod(mode, path)
  Puppet::Util::Windows::Security.set_mode(mode, path.to_s)
end

#exist?(path) ⇒ Boolean 


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# File 'lib/puppet/file_system/windows.rb', line 35

def exist?(path)
  return Puppet::Util::Windows::File.exist?(path)
end

#expand_path(path, dir_string = nil) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 16

def expand_path(path, dir_string = nil)
  # ensure `nil` values behave like underlying File.expand_path
  string_path = ::File.expand_path(path.nil? ? nil : path_string(path), dir_string)
  # if no tildes, nothing to expand, no need to call Windows API, return original string
  return string_path if !string_path.index('~')

  begin
    # no need to do existence check up front as GetLongPathName implies that check is performed
    # and it should be the exception that files aren't actually present
    string_path = Puppet::Util::Windows::File.get_long_pathname(string_path)
  rescue Puppet::Util::Windows::Error => e
    # preserve original File.expand_path behavior for file / path not found by returning string
    raise if (e.code != Puppet::Util::Windows::File::ERROR_FILE_NOT_FOUND &&
      e.code != Puppet::Util::Windows::File::ERROR_PATH_NOT_FOUND)
  end

  string_path
end

#lstat(path) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 100

def lstat(path)
  if ! Puppet.features.manages_symlinks?
    return Puppet::Util::Windows::File.stat(path)
  end
  Puppet::Util::Windows::File.lstat(path)
end

#open(path, mode, options, &block) ⇒ Object

Raises:

  • (TypeError) 

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# File 'lib/puppet/file_system/windows.rb', line 8

def open(path, mode, options, &block)
  # PUP-6959 mode is explicitly ignored until it can be implemented
  # Ruby on Windows uses mode for setting file attributes like read-only and
  # archived, not for setting permissions like POSIX
  raise TypeError.new('mode must be specified as an Integer') if mode && !mode.is_a?(Numeric)
  ::File.open(path, options, nil, &block)
end

#read_preserve_line_endings(path) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 111

def read_preserve_line_endings(path)
  contents = path.read( :mode => 'rb', :encoding => Encoding::UTF_8)
  contents = path.read( :mode => 'rb', :encoding => Encoding::default_external) unless contents.valid_encoding?
  contents = path.read unless contents.valid_encoding?

  contents
end

#readlink(path) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 65

def readlink(path)
  raise_if_symlinks_unsupported
  Puppet::Util::Windows::File.readlink(path)
end

#replace_file(path, mode = nil) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 124

def replace_file(path, mode = nil)
  if Puppet::FileSystem.directory?(path)
    raise Errno::EISDIR, _("Is a directory: %{directory}") % { directory: path }
  end

  current_sid = Puppet::Util::Windows::SID.name_to_sid(Puppet::Util::Windows::ADSI::User.current_user_name)
  dacl = case mode
         when 0644
           dacl = secure_dacl(current_sid)
           dacl.allow(Puppet::Util::Windows::SID::BuiltinUsers, FILE_READ)
           dacl
         when 0640, 0600
           secure_dacl(current_sid)
         when nil
           get_dacl_from_file(path) || secure_dacl(current_sid)
         else
           raise ArgumentError, "Only modes 0644, 0640 and 0600 are allowed"
         end


  tempfile = Puppet::FileSystem::Uniquefile.new(Puppet::FileSystem.basename_string(path), Puppet::FileSystem.dir_string(path))
  begin
    tempdacl = Puppet::Util::Windows::AccessControlList.new
    tempdacl.allow(current_sid, FULL_CONTROL)
    set_dacl(tempfile.path, tempdacl)

    begin
      yield tempfile
      tempfile.flush
      tempfile.fsync
    ensure
      tempfile.close
    end

    set_dacl(tempfile.path, dacl) if dacl
    File.rename(tempfile.path, Puppet::FileSystem.path_string(path))
  ensure
    tempfile.close!
  end
rescue Puppet::Util::Windows::Error => e
  case e.code
  when ACCESS_DENIED, SHARING_VIOLATION, LOCK_VIOLATION
    raise Errno::EACCES.new(Puppet::FileSystem.path_string(path), e)
  else
    raise SystemCallError.new(e.message)
  end
end

#stat(path) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 96

def stat(path)
  Puppet::Util::Windows::File.stat(path)
end

#symlink(path, dest, options = {}) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 39

def symlink(path, dest, options = {})
  raise_if_symlinks_unsupported

  dest_exists = exist?(dest) # returns false on dangling symlink
  dest_stat = Puppet::Util::Windows::File.stat(dest) if dest_exists

  # silent fail to preserve semantics of original FileUtils
  return 0 if dest_exists && dest_stat.ftype == 'directory'

  if dest_exists && dest_stat.ftype == 'file' && options[:force] != true
    raise(Errno::EEXIST, _("%{dest} already exists and the :force option was not specified") % { dest: dest })
  end

  if options[:noop] != true
    ::File.delete(dest) if dest_exists # can only be file
    Puppet::Util::Windows::File.symlink(path, dest)
  end

  0
end

#symlink?(path) ⇒ Boolean 


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# File 'lib/puppet/file_system/windows.rb', line 60

def symlink?(path)
  return false if ! Puppet.features.manages_symlinks?
  Puppet::Util::Windows::File.symlink?(path)
end

#unlink(*file_names) ⇒ Object 


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# File 'lib/puppet/file_system/windows.rb', line 70

def unlink(*file_names)
  if ! Puppet.features.manages_symlinks?
    return ::File.unlink(*file_names)
  end

  file_names.each do |file_name|
    file_name = file_name.to_s # handle PathName
    stat = Puppet::Util::Windows::File.stat(file_name) rescue nil

    # sigh, Ruby + Windows :(
    if !stat
      ::File.unlink(file_name) rescue Dir.rmdir(file_name)
    elsif stat.ftype == 'directory'
      if Puppet::Util::Windows::File.symlink?(file_name)
        Dir.rmdir(file_name)
      else
        raise Errno::EPERM.new(file_name)
      end
    else
      ::File.unlink(file_name)
    end
  end

  file_names.length
end