Class: Yast::CWMFirewallInterfacesClass

Inherits:
Module
  • Object
show all
Defined in:
../../src/modules/CWMFirewallInterfaces.rb

Instance Method Summary (collapse)

Instance Method Details

- (Object) CheckPossbilityToChangeFirewall(new_status)

Checks whether it is possible to change the firewall status



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 598

def CheckPossbilityToChangeFirewall(new_status)
  # Reset buggy ifaces
  @buggy_ifaces = []

  # User want's to disable the service in firewall
  # that works always
  return true if new_status == false

  # 'any' in 'EXT'
  # interfaces are mentioned in some zone or they are covered by the special string
  # enable-on-all or disable-on-all will work
  return true if SuSEFirewall.IsAnyNetworkInterfaceSupported

  # every network interface must have its zone assigned
  all_ok = true
  all_ifaces = SuSEFirewall.GetAllKnownInterfaces
  Builtins.foreach(SuSEFirewall.GetAllKnownInterfaces) do |one_interface|
    if Ops.get(one_interface, "zone") == nil ||
        Ops.get(one_interface, "zone", "") == ""
      Builtins.y2warning(
        "Cannot enable service because interface %1 is not mentioned anywhere...",
        Ops.get(one_interface, "id", "ID")
      )
      @buggy_ifaces = Builtins.add(
        @buggy_ifaces,
        Ops.get(one_interface, "id", "interface")
      )
      all_ok = false
    end
  end
  if all_ok
    return true
  else
    ifaces_list = Builtins.mergestring(@buggy_ifaces, "\n")
    # yes-no popup
    if Popup.YesNo(
        Builtins.sformat(
          _(
            "Because of SuSE Firewall settings, the port\n" +
              "on the following interfaces cannot be opened:\n" +
              "%1\n" +
              "\n" +
              "Continue?"
          ),
          ifaces_list
        )
      )
      # all known ifaces are buggy
      if Builtins.size(@buggy_ifaces) == Builtins.size(all_ifaces)
        return false
      else
        # at least one iface isn't buggy
        return true
      end
    else
      # cancel
      @buggy_ifaces = deep_copy(@all_interfaces)
      return false
    end
  end

  false
end

- (Hash) CreateInterfacesWidget(settings)

Get the widget description map <pre>

Behavior manipulating functions (mandatory) - "get_allowed_interfaces" : list<string>() -- function that returns the list of allowed network interfaces - "set_allowed_interfaces" : void (list<string>) -- function that sets the list of allowed interfaces

Additional settings: - "help" : string -- help to the whole widget. If not specified, generic help is used (button labels are patched correctly) </pre>

Parameters:

  • settings (Hash{String => Object})

    a map of all parameters needed to create the widget properly

Returns:

  • (Hash)

    the widget description map



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 713

def CreateInterfacesWidget(settings)
  settings = deep_copy(settings)
  widget = HBox(
    HSpacing(1),
    VBox(
      HSpacing(48),
      VSpacing(1),
      ReplacePoint(
        Id("_cwm_interface_list_rp"),
        MultiSelectionBox(
          Id("_cwm_interface_list"),
          # translators: selection box title
          _("Network &Interfaces with Open Port in Firewall"),
          []
        )
      ),
      VSpacing(1),
      HBox(
        HStretch(),
        HWeight(
          1,
          PushButton(
            Id("_cwm_interface_select_all"),
            # push button to select all network intefaces for firewall
            _("Select &All")
          )
        ),
        HWeight(
          1,
          PushButton(
            Id("_cwm_interface_select_none"),
            # push button to deselect all network intefaces for firewall
            _("Select &None")
          )
        ),
        HStretch()
      ),
      VSpacing(1)
    ),
    HSpacing(1)
  )

  help = "" # TODO

  if Builtins.haskey(settings, "help")
    help = Ops.get_string(settings, "help", "")
  end

  ret = Convert.convert(
    Builtins.union(
      settings,
      {
        "widget"            => :custom,
        "custom_widget"     => widget,
        "help"              => help,
        "init"              => fun_ref(
          method(:InterfacesInitWrapper),
          "void (string)"
        ),
        "store"             => fun_ref(
          method(:InterfacesStoreWrapper),
          "void (string, map)"
        ),
        "handle"            => fun_ref(
          method(:InterfacesHandleWrapper),
          "symbol (string, map)"
        ),
        "validate_type"     => :function,
        "validate_function" => fun_ref(
          method(:InterfacesValidateWrapper),
          "boolean (string, map)"
        )
      }
    ),
    :from => "map",
    :to   => "map <string, any>"
  )

  deep_copy(ret)
end

- (Hash) CreateOpenFirewallWidget(settings)

Get the widget description map of the firewall enablement widget <pre>

  • “services” : list<string> – services identifications for the Firewall.ycp module

  • “display_details” : boolean – true if the details button should be displayed

  • “firewall_details_handler” : symbol () – function to handle the firewall details button. If returns something else than nil, dialog is exited with the returned symbol as value for wizard sequencer. If not specified, but "display_details" is true, common popup is used.

  • “open_firewall_checkbox” : string – label of the check box

  • “firewall_details_button” : string – label of the push button for changing firewall details

  • “help” : string – help to the widget. If not specified, generic help is used </pre>

Parameters:

  • settings (Hash{String => Object})

    a map of all parameters needed to create the widget properly

Returns:

  • (Hash)

    the widget description map



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 1053

def CreateOpenFirewallWidget(settings)
  settings = deep_copy(settings)
  help = ""
  # check box

  open_firewall_checkbox = Ops.get_locale(
    settings,
    "open_firewall_checkbox",
    _("Open Port in &Firewall")
  )
  # push button

  firewall_details_button = Ops.get_locale(
    settings,
    "firewall_details_button",
    _("Firewall &Details...")
  )

  display_firewall_details = Builtins.haskey(
    settings,
    "firewall_details_handler"
  ) ||
    Ops.get_boolean(settings, "display_details", false)
  if Builtins.haskey(settings, "help")
    help = Ops.get_string(settings, "help", "")
  else
    help = OpenFirewallHelp(display_firewall_details)
  end

  firewall_settings = CheckBox(
    Id("_cwm_open_firewall"),
    Opt(:notify),
    open_firewall_checkbox
  )
  if display_firewall_details
    firewall_settings = HBox(
      firewall_settings,
      HSpacing(2),
      PushButton(Id("_cwm_firewall_details"), firewall_details_button)
    )
  end
  firewall_settings = VBox(
    Frame(
      _("Firewall Settings"),
      VBox(
        Left(firewall_settings),
        Left(
          ReplacePoint(
            Id(:_cwm_firewall_status_rp),
            # label text
            Label(_("Firewall is open"))
          )
        )
      )
    )
  )

  if !Builtins.haskey(settings, "services")
    firewall_settings = VBox()
    help = ""
    Builtins.y2error("Firewall services not specified")
  end

  ret = Convert.convert(
    Builtins.union(
      {
        "widget"        => :custom,
        "custom_widget" => firewall_settings,
        "help"          => help,
        "init"          => fun_ref(
          method(:OpenFirewallInitWrapper),
          "void (string)"
        ),
        "store"         => fun_ref(
          method(:OpenFirewallStoreWrapper),
          "void (string, map)"
        ),
        "handle"        => fun_ref(
          method(:OpenFirewallHandleWrapper),
          "symbol (string, map)"
        ),
        "handle_events" => ["_cwm_firewall_details", "_cwm_open_firewall"]
      },
      settings
    ),
    :from => "map",
    :to   => "map <string, any>"
  )

  deep_copy(ret)
end

- (Object) DisableOpenFirewallWidget

Disable the whole firewal widget

Parameters:

  • key

    strnig the widget key



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 974

def DisableOpenFirewallWidget
  return if !UI.WidgetExists(Id("_cwm_open_firewall"))
  return if !UI.WidgetExists(Id("_cwm_firewall_details"))
  UI.ChangeWidget(Id("_cwm_open_firewall"), :Enabled, false)
  UI.ChangeWidget(Id("_cwm_firewall_details"), :Enabled, false)

  nil
end

- (Symbol) DisplayDetailsPopup(settings)

Display the firewall interfaces selection as a popup

Returns:

  • (Symbol)

    return value of the dialog



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 796

def DisplayDetailsPopup(settings)
  settings = deep_copy(settings)
  # FIXME breaks help if run in dialog with Tab!!!!!!
  # settings stack must be created in CWM::Run
  w = CWM.CreateWidgets(
    ["firewall_ifaces"],
    { "firewall_ifaces" => CreateInterfacesWidget(settings) }
  )
  help = CWM.MergeHelps(w)
  contents = VBox(
    "firewall_ifaces",
    ButtonBox(
      PushButton(Id(:ok), Opt(:okButton, :key_F10), Label.OKButton),
      PushButton(
        Id(:cancel),
        Opt(:cancelButton, :key_F9),
        Label.CancelButton
      )
    )
  )
  contents = CWM.PrepareDialog(contents, w)
  UI.OpenDialog(contents)
  ret = CWM.Run(w, {})
  UI.CloseDialog
  ret
end

- (Object) DisplayFirewallDetailsPopupHandler(widget)

Display popup with firewall settings details



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 273

def DisplayFirewallDetailsPopupHandler(widget)
  widget = deep_copy(widget)
  common_details_handler = Convert.convert(
    Ops.get(widget, "common_details_handler"),
    :from => "any",
    :to   => "void (map <string, any>)"
  )
  common_details_handler.call(widget) if common_details_handler != nil

  nil
end

- (Object) EnableOpenFirewallWidget

Enable the whole firewal widget

Parameters:

  • key

    strnig the widget key



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 963

def EnableOpenFirewallWidget
  return if !UI.WidgetExists(Id("_cwm_open_firewall"))
  return if !UI.WidgetExists(Id("_cwm_firewall_details"))
  UI.ChangeWidget(Id("_cwm_open_firewall"), :Enabled, true)
  EnableOrDisableFirewallDetails()

  nil
end

- (Object) EnableOrDisableFirewallDetails

Enable or disable the firewall details widget according to the status of "open firewall" checkbox



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 89

def EnableOrDisableFirewallDetails
  return if !UI.WidgetExists(Id("_cwm_open_firewall"))
  return if !UI.WidgetExists(Id("_cwm_firewall_details"))
  enabled = Convert.to_boolean(
    UI.QueryWidget(Id("_cwm_open_firewall"), :Value)
  )
  enabled = false if enabled == nil
  enabled = false if Builtins.size(@all_interfaces) == 0

  UI.ChangeWidget(Id("_cwm_firewall_details"), :Enabled, enabled)

  nil
end

- (Object) InitAllInterfacesList

Initialize the list of all known interfaces



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 140

def InitAllInterfacesList
  # Do not read NetworkInterfaces when they are already read
  if !Mode.config && !Mode.installation && !Mode.update
    Builtins.y2milestone("Reading NetworkInterfaces...")
    NetworkInterfaces.Read
  end
  @all_interfaces = String.NonEmpty(NetworkInterfaces.List(""))
  @all_interfaces = Builtins.filter(@all_interfaces) { |i| i != "lo" }
  if !Mode.config
    @interface_items = Builtins.maplist(@all_interfaces) do |i|
      label = NetworkInterfaces.GetValue(i, "BOOTPROTO")
      ipaddr = NetworkInterfaces.GetValue(i, "IPADDR")
      # BNC #483455: Interface zone name
      zone = SuSEFirewall.GetZoneOfInterface(i)
      if zone != nil && zone != ""
        zone = SuSEFirewall.GetZoneFullName(zone)
      else
        zone = _("Interface is not assigned to any zone")
      end
      if label == "static" || label == "" || label == nil
        label = ipaddr
      else
        label = Builtins.toupper(label)
        if ipaddr != nil && ipaddr != ""
          label = Builtins.sformat("%1/%2", label, ipaddr)
        end
      end
      if label == nil || label == ""
        label = i
      else
        label = Builtins.sformat("%1 (%2 / %3)", i, label, zone)
      end
      Item(Id(i), label)
    end
  else
    @interface_items = Builtins.maplist(@all_interfaces) do |i|
      Item(Id(i), i)
    end
  end

  @any_iface_supported = SuSEFirewall.IsAnyNetworkInterfaceSupported

  nil
end

- (Object) InitAllowedInterfaces(services)

Initialize the list of allowed interfaces Changes the internal variables

Parameters:

  • services (Array<String>)

    a list of services



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 292

def InitAllowedInterfaces(services)
  services = deep_copy(services)
  service_status = {}


  ifaces_info = SuSEFirewall.GetServicesInZones(services)
  Builtins.foreach(ifaces_info) { |s, status| Builtins.foreach(status) do |iface, en|
    Ops.set(
      service_status,
      iface,
      Ops.get(service_status, iface, true) && en
    )
  end }
  service_status = Builtins.filter(service_status) { |iface, en| en == true }
  Builtins.y2milestone("Status: %1", service_status)
  @allowed_interfaces = Builtins.maplist(service_status) do |iface, en|
    iface
  end

  # Checking whether the string 'any' is in the 'EXT' zone
  # If it is, checking the status of services for this zone
  # If it is enabled, adding it these interfaces into the list of allowed interfaces
  #                   and setting this zone to enabled
  if SuSEFirewall.IsAnyNetworkInterfaceSupported
    interfaces_supported_by_any = SuSEFirewall.InterfacesSupportedByAnyFeature(
      SuSEFirewall.special_all_interface_zone
    )
    if Ops.greater_than(Builtins.size(interfaces_supported_by_any), 0)
      Builtins.foreach(services) do |service|
        Ops.set(
          service_status,
          SuSEFirewall.special_all_interface_zone,
          SuSEFirewall.IsServiceSupportedInZone(
            service,
            SuSEFirewall.special_all_interface_zone
          ) &&
            Ops.get(
              service_status,
              SuSEFirewall.special_all_interface_zone,
              true
            )
        )
      end
      if Ops.get(
          service_status,
          SuSEFirewall.special_all_interface_zone,
          false
        )
        @allowed_interfaces = Convert.convert(
          Builtins.union(@allowed_interfaces, interfaces_supported_by_any),
          :from => "list",
          :to   => "list <string>"
        )
      end
    end
  end

  # Check the INT zone, it's not protected by default
  # See bnc #382686
  internal_interfaces = SuSEFirewall.GetInterfacesInZone("INT")
  if Ops.greater_than(Builtins.size(internal_interfaces), 0) &&
      SuSEFirewall.GetProtectFromInternalZone == false
    Builtins.y2milestone(
      "Unprotected internal interfaces: %1",
      internal_interfaces
    )
    @allowed_interfaces = Convert.convert(
      Builtins.union(@allowed_interfaces, internal_interfaces),
      :from => "list",
      :to   => "list <string>"
    )
  else
    Builtins.y2milestone(
      "Internal zone is protected or there are no interfaces in it"
    )
  end

  @configuration_changed = false

  nil
end

- (Symbol) InterfacesHandle(widget, key, event)

Handle function of the widget

Parameters:

  • widget (Hash{String => Object})

    a widget description map

  • key (String)

    strnig the widget key

  • event (Hash)

    map event to be handled

Returns:

  • (Symbol)

    for wizard sequencer or nil



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 437

def InterfacesHandle(widget, key, event)
  widget = deep_copy(widget)
  event = deep_copy(event)
  event_id = Ops.get(event, "ID")
  if event_id == "_cwm_interface_select_all"
    UI.ChangeWidget(
      Id("_cwm_interface_list"),
      :SelectedItems,
      @all_interfaces
    )
    return nil
  end
  if event_id == "_cwm_interface_select_none"
    UI.ChangeWidget(Id("_cwm_interface_list"), :SelectedItems, [])
    return nil
  end
  nil
end

- (Symbol) InterfacesHandleWrapper(key, event)

Handle function of the widget

Parameters:

  • key (String)

    strnig the widget key

  • event (Hash)

    map event to be handled

Returns:

  • (Symbol)

    for wizard sequencer or nil



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 674

def InterfacesHandleWrapper(key, event)
  event = deep_copy(event)
  InterfacesHandle(CWM.GetProcessedWidget, key, event)
end

- (Object) InterfacesInit(widget, key)

Init function of the widget

Parameters:

  • widget (Hash{String => Object})

    a widget description map

  • key (String)

    strnig the widget key



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 409

def InterfacesInit(widget, key)
  widget = deep_copy(widget)
  # set the list of ifaces
  InitAllInterfacesList() if @all_interfaces == nil
  UI.ReplaceWidget(
    Id("_cwm_interface_list_rp"),
    MultiSelectionBox(
      Id("_cwm_interface_list"),
      # transaltors: selection box title
      _("&Network Interfaces with Open Port in Firewall"),
      @interface_items
    )
  )
  # mark open ifaces as open
  UI.ChangeWidget(
    Id("_cwm_interface_list"),
    :SelectedItems,
    @allowed_interfaces
  )

  nil
end

- (Object) InterfacesInitWrapper(key)

Init function of the widget

Parameters:

  • key (String)

    strnig the widget key



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 664

def InterfacesInitWrapper(key)
  InterfacesInit(CWM.GetProcessedWidget, key)

  nil
end

- (Object) InterfacesStore(widget, key, event)

Store function of the widget

Parameters:

  • widget (Hash{String => Object})

    a widget description map

  • key (String)

    strnig the widget key

  • event (Hash)

    map that caused widget data storing



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 460

def InterfacesStore(widget, key, event)
  widget = deep_copy(widget)
  event = deep_copy(event)
  @allowed_interfaces = Convert.convert(
    UI.QueryWidget(Id("_cwm_interface_list"), :SelectedItems),
    :from => "any",
    :to   => "list <string>"
  )
  @allowed_interfaces = Selected2Opened(@allowed_interfaces, false)
  @configuration_changed = true

  nil
end

- (Object) InterfacesStoreWrapper(key, event)

Store function of the widget

Parameters:

  • key (String)

    strnig the widget key

  • event (Hash)

    map that caused widget data storing



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 682

def InterfacesStoreWrapper(key, event)
  event = deep_copy(event)
  InterfacesStore(CWM.GetProcessedWidget, key, event)

  nil
end

- (Object) InterfacesValidate(widget, key, event)

Validate function of the widget

Parameters:

  • widget (Hash{String => Object})

    a widget description map

  • key (String)

    strnig the widget key

  • event (Hash)

    map event that caused the validation

Returns:

  • true if validation succeeded, false otherwise



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 479

def InterfacesValidate(widget, key, event)
  widget = deep_copy(widget)
  event = deep_copy(event)
  ifaces = Convert.convert(
    UI.QueryWidget(Id("_cwm_interface_list"), :SelectedItems),
    :from => "any",
    :to   => "list <string>"
  )
  ifaces = Builtins.toset(ifaces)
  Builtins.y2milestone("Selected ifaces: %1", ifaces)

  # Check the INT zone, it's not protected by default
  # See bnc #382686
  internal_interfaces = SuSEFirewall.GetInterfacesInZone("INT")

  if Ops.greater_than(Builtins.size(internal_interfaces), 0) &&
      SuSEFirewall.GetProtectFromInternalZone == false
    int_not_selected = []
    Builtins.foreach(internal_interfaces) do |one_internal|
      if !Builtins.contains(ifaces, one_internal)
        int_not_selected = Builtins.add(int_not_selected, one_internal)
      end
    end

    if Ops.greater_than(Builtins.size(int_not_selected), 0)
      Builtins.y2warning(
        "Unprotected internal interfaces not selected: %1",
        int_not_selected
      )

      Report.Message(
        Builtins.sformat(
          _(
            "These network interfaces assigned to internal network cannot be deselected:\n%1\n"
          ),
          Builtins.mergestring(int_not_selected, "\n")
        )
      )

      ifaces = Convert.convert(
        Builtins.union(ifaces, int_not_selected),
        :from => "list",
        :to   => "list <string>"
      )
      Builtins.y2milestone("Selected interfaces: %1", ifaces)
      UI.ChangeWidget(Id("_cwm_interface_list"), :SelectedItems, ifaces)
      return false
    end
  end

  if Builtins.size(ifaces) == 0
    # question popup
    if !Popup.YesNo(
        _(
          "No interface is selected. Service will not\n" +
            "be available for other computers.\n" +
            "\n" +
            "Continue?"
        )
      )
      return false
    end
  end

  firewall_ifaces = Builtins.toset(Selected2Opened(ifaces, false))
  Builtins.y2milestone("firewall_ifaces: %1", firewall_ifaces)

  added_ifaces = Builtins.filter(firewall_ifaces) do |i|
    !Builtins.contains(ifaces, i)
  end
  Builtins.y2milestone("added_ifaces: %1", added_ifaces)

  removed_ifaces = Builtins.filter(ifaces) do |i|
    !Builtins.contains(firewall_ifaces, i)
  end
  Builtins.y2milestone("removed_ifaces: %1", removed_ifaces)

  # to hide that special string
  if Ops.greater_than(Builtins.size(added_ifaces), 0)
    ifaces_list = Builtins.mergestring(added_ifaces, "\n")
    if !Popup.YesNo(
        Builtins.sformat(
          # yes-no popup
          _(
            "Because of SuSE Firewall settings, the port\n" +
              "on the following interfaces will additionally be open:\n" +
              "%1\n" +
              "\n" +
              "Continue?"
          ),
          ifaces_list
        )
      )
      return false
    end
  end
  # to hide that special string
  if Ops.greater_than(Builtins.size(removed_ifaces), 0)
    ifaces_list = Builtins.mergestring(removed_ifaces, "\n")
    if !Popup.YesNo(
        Builtins.sformat(
          # yes-no popup
          _(
            "Because of SuSE Firewall settings, the port\n" +
              "on the following interfaces cannot be opened:\n" +
              "%1\n" +
              "\n" +
              "Continue?"
          ),
          ifaces_list
        )
      )
      return false
    end
  end
  true
end

- (Object) InterfacesValidateWrapper(key, event)

Validate function of the widget

Parameters:

  • key (String)

    strnig the widget key

  • event (Hash)

    map event that caused the validation

Returns:

  • true if validation succeeded, false otherwise



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 693

def InterfacesValidateWrapper(key, event)
  event = deep_copy(event)
  InterfacesValidate(CWM.GetProcessedWidget, key, event)
end

- (Object) main



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 46

def main
  Yast.import "UI"
  textdomain "base"



  Yast.import "CWM"
  Yast.import "Label"
  Yast.import "Mode"
  Yast.import "NetworkInterfaces"
  Yast.import "Popup"
  Yast.import "SuSEFirewall"
  Yast.import "Report"
  Yast.import "Stage"
  Yast.import "String"

  # used only for (Mode::installation() || Mode::update())
  Yast.import "SuSEFirewallProposal"

  # private variables

  # List of all interfaces relevant for firewall settings
  @all_interfaces = nil

  # List of all items of interfaces to the selection box
  @interface_items = nil

  # List of interfaces that are allowed
  @allowed_interfaces = nil

  # Information if configuration was changed by user
  @configuration_changed = false

  # `Any`-feature is supported in the firewall configuration
  @any_iface_supported = nil

  @buggy_ifaces = []
end

- (Boolean) Modified

Check if settings were modified by the user

Returns:

  • (Boolean)

    true if settings were modified



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 1147

def Modified
  SuSEFirewall.GetModified
end

- (Object) OpenFirewallHandle(widget, key, event)

Handle the immediate start and stop of the service

Parameters:

  • widget (Hash{String => Object})

    a map describing the widget

  • key (String)

    strnig the widget key

  • event_id

    any the ID of the occurred event

Returns:

  • always nil



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 872

def OpenFirewallHandle(widget, key, event)
  widget = deep_copy(widget)
  event = deep_copy(event)
  event_id = Ops.get(event, "ID")
  if event_id == "_cwm_firewall_details"
    handle_firewall_details = Convert.convert(
      Ops.get(widget, "firewall_details_handler"),
      :from => "any",
      :to   => "symbol ()"
    )
    Builtins.y2milestone("FD: %1", handle_firewall_details)
    ret = nil
    Builtins.y2milestone("RT: %1", ret)
    if handle_firewall_details != nil
      ret = handle_firewall_details.call
    else
      w = Builtins.filter(widget) { |k, v| "services" == k }
      DisplayDetailsPopup(w)
    end
    UpdateFirewallStatus()
    EnableOrDisableFirewallDetails()
    return ret
  end
  if event_id == "_cwm_open_firewall"
    value = Convert.to_boolean(
      UI.QueryWidget(Id("_cwm_open_firewall"), :Value)
    )
    Builtins.y2milestone("OF: %1", value)
    if value
      @allowed_interfaces = deep_copy(@all_interfaces)
    else
      @allowed_interfaces = []
    end

    @buggy_ifaces = []
    # Checks whether it's possible to enable or disable the service for all interfaces
    # opens a popup message when needed
    if !CheckPossbilityToChangeFirewall(value)
      # change the checkbox state back
      UI.ChangeWidget(Id("_cwm_open_firewall"), :Value, !value)
    end
    # Filtering out buggy ifaces
    Builtins.foreach(@buggy_ifaces) do |one_iface|
      @allowed_interfaces = Builtins.filter(@allowed_interfaces) do |one_allowed|
        one_allowed != one_iface
      end
    end

    UpdateFirewallStatus()
    EnableOrDisableFirewallDetails()
    @configuration_changed = true
  end
  nil
end

- (Object) OpenFirewallHandleWrapper(key, event)

Handle the immediate start and stop of the service

Parameters:

  • key (String)

    strnig the widget key

  • event_id

    any the ID of the occurred event

Returns:

  • always nil



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 949

def OpenFirewallHandleWrapper(key, event)
  event = deep_copy(event)
  OpenFirewallHandle(CWM.GetProcessedWidget, key, event)
end

- (String) OpenFirewallHelp(restart_displayed)

Get the help text to the firewall opening widget

Parameters:

  • restart_displayed (Boolean)

    shold be true if “Save and restart” is displayed

Returns:

  • (String)

    help text



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 1023

def OpenFirewallHelp(restart_displayed)
  Builtins.sformat(
    OpenFirewallHelpTemplate(restart_displayed),
    # part of help text - check box label, NO SHORTCUT!!!
    _("Open Port in Firewall"),
    # part of help text - push button label, NO SHORTCUT!!!
    _("Firewall Details")
  )
end

- (String) OpenFirewallHelpTemplate(restart_displayed)

Get the template for the help text to the firewall opening widget

Parameters:

  • restart_displayed (Boolean)

    shold be true if “Save and restart” is displayed

Returns:

  • (String)

    help text template with %1 and %2 placeholders



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 993

def OpenFirewallHelpTemplate(restart_displayed)
  # help text for firewall settings widget 1/3,
  # %1 is check box label, eg. "Open Port in Firewall" (without quotes)
  help = _(
    "<p><b><big>Firewall Settings</big></b><br>\n" +
      "To open the firewall to allow access to the service from remote computers,\n" +
      "set <b>%1</b>.<br>"
  )
  if restart_displayed
    # help text for firewall port openning widget 2/3, optional
    # %1 is push button label, eg. "Firewall &Details" (without quotes)
    # note: %2 is correct, do not replace with %1!!!
    help = Ops.add(
      help,
      _(
        "To select interfaces on which to open the port,\nclick <b>%2</b>.<br>"
      )
    )
  end
  # help text for firewall settings widget 3/3,
  help = Ops.add(
    help,
    _("This option is available only if the firewall\nis enabled.</p>")
  )
  help
end

- (Object) OpenFirewallInit(widget, key)

Initialize the open firewall widget

Parameters:

  • widget (Hash{String => Object})

    a map describing the whole widget



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 828

def OpenFirewallInit(widget, key)
  widget = deep_copy(widget)
  if !UI.WidgetExists(Id("_cwm_open_firewall"))
    Builtins.y2error("Firewall widget doesn't exist")
    return
  end
  services = Ops.get_list(widget, "services", [])
  InitAllInterfacesList()
  InitAllowedInterfaces(services)
  open_firewall = Ops.greater_than(Builtins.size(@allowed_interfaces), 0)
  firewall_enabled = SuSEFirewall.GetEnableService &&
    Ops.greater_than(Builtins.size(@all_interfaces), 0)
  if !firewall_enabled
    open_firewall = false
    UI.ChangeWidget(Id("_cwm_open_firewall"), :Enabled, false)
  end
  UI.ChangeWidget(Id("_cwm_open_firewall"), :Value, open_firewall)
  UpdateFirewallStatus()
  EnableOrDisableFirewallDetails()

  nil
end

- (Object) OpenFirewallInitWrapper(key)

Init function of the widget

Parameters:

  • key (String)

    strnig the widget key



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 929

def OpenFirewallInitWrapper(key)
  OpenFirewallInit(CWM.GetProcessedWidget, key)

  nil
end

- (Boolean) OpenFirewallModified(key)

Check if the widget was modified

Parameters:

  • key (String)

    strnig the widget key

Returns:

  • (Boolean)

    true if widget was modified



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 957

def OpenFirewallModified(key)
  @configuration_changed
end

- (Object) OpenFirewallStore(widget, key, event)

Store function of the widget

Parameters:

  • key (String)

    strnig the widget key

  • event (Hash)

    map that caused widget data storing



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 854

def OpenFirewallStore(widget, key, event)
  widget = deep_copy(widget)
  event = deep_copy(event)
  if !UI.WidgetExists(Id("_cwm_open_firewall"))
    Builtins.y2error("Widget _cwm_open_firewall does not exist")
    return
  end
  services = Ops.get_list(widget, "services", [])
  StoreAllowedInterfaces(services)

  nil
end

- (Object) OpenFirewallStoreWrapper(key, event)

Store function of the widget

Parameters:

  • key (String)

    strnig the widget key

  • event (Hash)

    map that caused widget data storing



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 938

def OpenFirewallStoreWrapper(key, event)
  event = deep_copy(event)
  OpenFirewallStore(CWM.GetProcessedWidget, key, event)

  nil
end

- (Boolean) OpenFirewallWidgetExists

Check whether the whole firewall widget ( open port checkbox and fw details button) exists

Returns:

  • (Boolean)

    true if both widgets exist



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 986

def OpenFirewallWidgetExists
  UI.WidgetExists(Id("_cwm_open_firewall")) &&
    UI.WidgetExists(Id("_cwm_firewall_details"))
end

- (Object) Selected2Opened(ifaces, nm_ifaces_have_to_be_selected)

Get the list of all interfaces that will be selected

Parameters:

  • ifaces (Array<String>)

    a list of interfaces selected by the user

  • nm_ifaces_have_to_be_selected (Boolean)

    defines whether also NetworkManager have to be selected too

Returns:

  • a list of interfaces that will be opened



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 220

def Selected2Opened(ifaces, nm_ifaces_have_to_be_selected)
  ifaces = deep_copy(ifaces)
  Builtins.y2milestone("Selected ifaces: %1", ifaces)
  groups = Builtins.maplist(ifaces) do |i|
    SuSEFirewall.GetZoneOfInterface(i)
  end

  # string 'any' is in the EXT zone
  # all interfaces without zone assigned are covered by this case
  # so, check also the EXT zone
  if SuSEFirewall.IsAnyNetworkInterfaceSupported
    groups = Builtins.add(groups, SuSEFirewall.special_all_interface_zone)
  end

  groups = String.NonEmpty(Builtins.toset(groups))
  groups = Builtins.filter(groups) { |g| g != nil }
  iface_groups = Builtins.maplist(groups) do |g|
    ifaces_also_supported_by_any = SuSEFirewall.GetInterfacesInZoneSupportingAnyFeature(
      g
    )
    # If all interfaces in EXT zone are covered by the special 'any' string
    # and none of these interfaces are selected to be open, we can remove all of them
    # disable the service in whole EXT zone
    if g == SuSEFirewall.special_all_interface_zone
      ifaces_left_explicitely = Builtins.filter(
        ifaces_also_supported_by_any
      ) do |iface|
        Builtins.contains(ifaces, iface)
      end
      Builtins.y2milestone(
        "Ifaces left in zone: %1",
        ifaces_left_explicitely
      )
      # there are no interfaces left that would be explicitely mentioned in the EXT zone
      if ifaces_left_explicitely == []
        next [] 
        # Hmm, some interfaces left
      else
        next deep_copy(ifaces_also_supported_by_any)
      end 
      # Just report all interfaces mentioned in zone
    else
      next deep_copy(ifaces_also_supported_by_any)
    end
  end
  Builtins.y2milestone("Ifaces touched: %1", iface_groups)
  new_ifaces = Builtins.toset(Builtins.flatten(iface_groups))
  new_ifaces = Builtins.filter(new_ifaces) { |i| i != nil }

  Builtins.toset(new_ifaces)
end

- (Object) SetFirewallLabel(status)

Set the firewall status label

Parameters:

  • status (Symbol)

    symbol one of off,closed, open_all,custom, `not_installed



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 105

def SetFirewallLabel(status)
  label = ""
  if status == :not_installed
    # bnc #429861
    if Stage.initial
      # label
      label = _(
        "Firewall cannot be adjusted during first stage installation."
      )
    else
      # label
      label = _("Firewall package is not installed.")
    end
  elsif status == :off
    # label
    label = _("Firewall is disabled")
  elsif status == :closed
    # label
    label = _("Firewall port is closed")
  elsif status == :open_all
    # label
    label = _("Firewall port is open on all interfaces")
  elsif status == :custom
    # label
    label = _("Firewall port is open on selected interfaces")
  elsif status == :no_ifaces
    # label
    label = _("No network interfaces are configured")
  end
  UI.ReplaceWidget(Id(:_cwm_firewall_status_rp), Label(label))

  nil
end

- (Object) StoreAllowedInterfaces(services)

Store the list of allowed interfaces Users the internal variables

Parameters:

  • services (Array<String>)

    a list of services



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 377

def StoreAllowedInterfaces(services)
  services = deep_copy(services)
  # do not save anything if configuration didn't change
  return if !@configuration_changed
  forbidden_interfaces = Builtins.filter(@all_interfaces) do |i|
    !Builtins.contains(@allowed_interfaces, i)
  end

  # If configuring firewall in any type of installation
  # proposal must be set to 'modified'
  if Mode.installation || Mode.update
    Builtins.y2milestone("Firewall proposal modified by user")
    SuSEFirewallProposal.SetChangedByUser(true)
  end

  interfaces_supported_by_any = SuSEFirewall.InterfacesSupportedByAnyFeature(
    SuSEFirewall.special_all_interface_zone
  )

  if Ops.greater_than(Builtins.size(forbidden_interfaces), 0)
    SuSEFirewall.SetServices(services, forbidden_interfaces, false)
  end
  if Ops.greater_than(Builtins.size(@allowed_interfaces), 0)
    SuSEFirewall.SetServices(services, @allowed_interfaces, true)
  end

  nil
end

- (Object) UpdateFirewallStatus

Update the firewall status label according to the current status



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# File '../../src/modules/CWMFirewallInterfaces.rb', line 186

def UpdateFirewallStatus
  InitAllInterfacesList() if @all_interfaces == nil
  status = :custom

  # bnc #429861
  if Stage.initial || !SuSEFirewall.SuSEFirewallIsInstalled
    status = :not_installed
  elsif !SuSEFirewall.GetEnableService
    status = :off
  elsif Builtins.size(@all_interfaces) == 0
    status = :no_ifaces
  elsif Builtins.size(@all_interfaces) == Builtins.size(@allowed_interfaces)
    status = :open_all
  elsif Builtins.size(@allowed_interfaces) == 0
    status = :closed
  end

  Builtins.y2milestone(
    "Status: %1, All: %2, Allowed: %3",
    status,
    @all_interfaces,
    @allowed_interfaces
  )
  SetFirewallLabel(status)
  open = status == :open_all || status == :custom
  UI.ChangeWidget(Id("_cwm_open_firewall"), :Value, open)

  nil
end