Module: Yast::NisServerSecurenetsInclude

Defined in:
../../src/include/nis_server/securenets.rb

Instance Method Summary (collapse)

Instance Method Details

- (Object) initialize_nis_server_securenets(include_target)



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# File '../../src/include/nis_server/securenets.rb', line 42

def initialize_nis_server_securenets(include_target)
  Yast.import "UI"

  textdomain "nis_server"

  Yast.import "NisServer"
  Yast.import "Wizard"
  Yast.import "Label"
  Yast.import "Popup"
  Yast.import "IP"
end

- (Object) ItemizeSecurenets(nets)

Creates items for table from var_yp_securenets.scr any agent

Parameters:

  • nets (Array<Hash>)

    list of output from securenets agent
    $[“netmask”: “255.0.0.0”, “network”: “10.0.0.0”]

Returns:

  • a list of items formated for a UI table



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# File '../../src/include/nis_server/securenets.rb', line 58

def ItemizeSecurenets(nets)
  nets = deep_copy(nets)
  not_comment = Builtins.filter(nets) do |e|
    Builtins.haskey(e, "netmask") || Builtins.haskey(e, "network")
  end
  result = []
  i = 0
  Builtins.foreach(not_comment) do |element|
    result = Builtins.add(
      result,
      Item(
        Id(i),
        Ops.get_string(element, "netmask", ""),
        Ops.get_string(element, "network", "")
      )
    )
    i = Ops.add(i, 1)
  end
  deep_copy(result)
end

- (Array) MergeNetsEntries(orig, edit)

Merge edited entries with the original entries with comments

Parameters:

  • orig (Array<Hash>)

    list of original entries (with comments)

  • edit (Array<Yast::Term>)

    list with edited entries (as placed in the table)

Returns:

  • (Array)

    with merged entries



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# File '../../src/include/nis_server/securenets.rb', line 83

def MergeNetsEntries(orig, edit)
  orig = deep_copy(orig)
  edit = deep_copy(edit)
  edit_maps = Builtins.maplist(edit) do |e|
    {
      "netmask" => Ops.get_string(e, 1, ""),
      "network" => Ops.get_string(e, 2, "")
    }
  end


  result = Builtins.filter(orig) do |e|
    Builtins.haskey(e, "hash") || Builtins.haskey(e, "comment") ||
      Builtins.contains(edit_maps, e)
  end
  edit_maps = Builtins.filter(edit_maps) do |e|
    !Builtins.contains(result, e)
  end
  result = Ops.add(result, edit_maps)

  deep_copy(result)
end

- (Object) NetsEditPopup(id, netmask, network)

Popup dialog for editing netmask/network

Parameters:

  • id (Fixnum)

    id of item

  • netmask (String)

    netmask

  • network (String)

    network

Returns:

  • a new item or nil on cancel



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# File '../../src/include/nis_server/securenets.rb', line 111

def NetsEditPopup(id, netmask, network)
  contents = HBox(
    HSpacing(),
    VBox(
      VSpacing(0.3),
      # To translators: popup dialog heading
      Heading(_("Edit netmask and network")),
      VSpacing(0.5),
      # To translators: textentry label
      InputField(Id(:netmask), Opt(:hstretch), _("Net&mask"), netmask),
      VSpacing(0.3),
      # To translators: textentry label
      InputField(Id(:network), Opt(:hstretch), _("Net&work"), network),
      VSpacing(0.5),
      ButtonBox(
        PushButton(Id(:ok), Opt(:default), Label.OKButton),
        PushButton(Id(:cancel), Label.CancelButton)
      ),
      VSpacing(0.3)
    ),
    HSpacing()
  )

  UI.OpenDialog(contents)
  UI.SetFocus(Id(:netmask))

  ui = nil
  error_msg = ""
  begin
    error_msg = ""
    ui = Convert.to_symbol(UI.UserInput)

    if ui == :ok
      netmask = Convert.to_string(UI.QueryWidget(Id(:netmask), :Value))
      network = Convert.to_string(UI.QueryWidget(Id(:network), :Value))
      # explicitly allow 0.0.0.0
      if netmask != "0.0.0.0" && !IP.Check4(netmask)
        # To translators: error message
        error_msg = Ops.add(error_msg, _("Wrong netmask!\n"))
      end
      # To translators: error message
      error_msg = Ops.add(
        error_msg,
        IP.Check4(network) ? "" : _("Wrong network!\n")
      )

      if Ops.greater_than(Builtins.size(error_msg), 0)
        Popup.Error(error_msg)
      end
    end
  end until error_msg == "" && ui == :ok || ui == :cancel

  UI.CloseDialog

  ui == :ok ? Item(Id(id), netmask, network) : nil
end

- (Object) QueryHosts

Securenets dialog

Returns:

  • back,next or `abort



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# File '../../src/include/nis_server/securenets.rb', line 170

def QueryHosts
  # help text 1/4
  helptext = _(
    "<p>Please enter which hosts are allowed to query the NIS server.</p>"
  )
  # help text 2/4
  helptext = Ops.add(
    helptext,
    _(
      "<p>A host address will be allowed if <b>network</b> is equal\nto the  bitwise <i>AND</i> of the host's address and the <b>netmask</b>.</p>"
    )
  )
  # help text 3/4
  helptext = Ops.add(
    helptext,
    _(
      "<p>The entry with <b>netmask</b> <tt>255.0.0.0</tt> and <b>network</b>\n<tt>127.0.0.0</tt> must exist to allow connections from the local host.</p>\n"
    )
  )
  # help text 4/4
  helptext = Ops.add(
    helptext,
    _(
      "<p>Entering <b>netmask</b> <tt>0.0.0.0</tt> and\n<b>network</b> <tt>0.0.0.0</tt> gives access to all hosts.</p>"
    )
  )

  allow_query = ItemizeSecurenets(NisServer.securenets)
  n_items = Builtins.size(allow_query)

  contents = VBox(
    Table(
      Id(:table),
      Opt(:notify, :immediate),
      Header(
        # To translators: table header
        _("Netmask"),
        # To translators: table header
        _("Network")
      ),
      allow_query
    ),
    HBox(
      PushButton(Id(:add), Label.AddButton),
      PushButton(Id(:edit), Label.EditButton),
      PushButton(Id(:delete), Label.DeleteButton),
      HStretch()
    )
  )

  # To translators: dialog label
  Wizard.SetContents(
    _("NIS Server Query Hosts Setup"),
    contents,
    helptext,
    true,
    true
  )
  Wizard.SetNextButton(:next, Label.FinishButton)

  ui = nil
  begin
    anyitems = UI.QueryWidget(Id(:table), :CurrentItem) != nil
    UI.ChangeWidget(Id(:edit), :Enabled, anyitems)
    UI.ChangeWidget(Id(:delete), :Enabled, anyitems)

    # Kludge, because a `Table still does not have a shortcut. #16116
    UI.SetFocus(Id(:table))

    ui = Convert.to_symbol(UI.UserInput)
    ui = :abort if ui == :cancel

    if ui == :delete
      id = Convert.to_integer(UI.QueryWidget(Id(:table), :CurrentItem))
      allow_query = Builtins.filter(allow_query) do |e|
        id != Ops.get_integer(e, [0, 0], -1)
      end
      UI.ChangeWidget(Id(:table), :Items, allow_query)
    elsif ui == :edit
      id = Convert.to_integer(UI.QueryWidget(Id(:table), :CurrentItem))
      item = Builtins.find(allow_query) do |e|
        id == Ops.get_integer(e, [0, 0], -1)
      end
      item = NetsEditPopup(
        id,
        Ops.get_string(item, 1, ""),
        Ops.get_string(item, 2, "")
      )
      if item != nil
        allow_query = Builtins.maplist(allow_query) do |e|
          Ops.get_integer(e, [0, 0], -1) == id ? item : e
        end
        UI.ChangeWidget(Id(:table), :Items, allow_query)
      end
    elsif ui == :add
      new_item = NetsEditPopup(n_items, "", "")
      if new_item != nil
        n_items = Ops.add(n_items, 1)
        allow_query = Builtins.add(allow_query, new_item)
        UI.ChangeWidget(Id(:table), :Items, allow_query)
      end
    end

    ui = :again if ui == :abort && !Popup.ReallyAbort(NisServer.modified)
  end until Builtins.contains([:back, :next, :abort], ui)

  Wizard.RestoreNextButton if ui == :back

  securenets = MergeNetsEntries(NisServer.securenets, allow_query)

  # and finally merge
  if ui == :next &&
      Builtins.sort(securenets) != Builtins.sort(NisServer.securenets)
    NisServer.securenets = deep_copy(securenets)
    NisServer.modified = true
  end
  ui
end