Delphi 2 - Developers' Solutions/Delphi 2 Developers' Solutions.iso/dds/chap10/howto02/delphi10/cciccinf.pas

Pascal/Delphi Source File | 1996-06-12 | 22.9 KB | 648 lines

unit Cciccinf;

interface

uses
  SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls,
  Forms, Dialogs, StdCtrls, Buttons, ExtCtrls, Grids, Outline, CCWSock;

type
  TCCICInfoDlg = class(TForm)
    Panel1: TPanel;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    Panel4: TPanel;
    ListBox2: TListBox;
    Panel2: TPanel;
    Edit1: TEdit;
    Panel3: TPanel;
    Edit2: TEdit;
    Panel5: TPanel;
    Edit3: TEdit;
    Panel8: TPanel;
    Edit4: TEdit;
    Panel9: TPanel;
    Edit5: TEdit;
    Panel6: TPanel;
    Label1: TLabel;
    Label2: TLabel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    ListBox1: TListBox;
    procedure Button1Click(Sender: TObject);
    procedure ListBox2Click(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure Edit4Exit(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure ListBox1DblClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  CCICInfoDlg: TCCICInfoDlg;
const
  LBClickVector : Integer = 0;
  ActiveMailbox : Integer = 0;

implementation

uses CCICCFrm;

function inet_addr( IPAddressName : PChar ) :
          Unsigned_Long_Integer; far; external 'WINSOCK';
function gethostbyname( TheName : PChar ) :
          PHost_Entry; far; external 'WINSOCK';

{$R *.DFM}
procedure TCCICInfoDlg.Button1Click(Sender: TObject);
var TempSocket : TCCSocket; { Used for IP Address info }
    DataBuffer : array[ 0 .. 256 ] of char;
begin
  case Tag of
    1 : begin  { Get IP Address Mode }
          { Create the dummy socket }
          TempSocket := TCCSocket.Create( Self );
          TempSocket.Parent := Self;
          { Use it to get the info }
          with TempSocket do
          begin
            { Move the IP address into the data buffer }
            StrPCopy( DataBuffer , Edit1.Text );
            { Turn it into a real IP address in binary form }
            Socket_IP_Address.Socket_Address.Full_Internet_Address :=
             inet_addr( DataBuffer );
            { If not found then do remote lookup }
            if Socket_IP_Address.Socket_Address.Full_Internet_Address = INADDR_NONE then
            begin
              { Call blocking function on IP name }
              Socket_Host_Entry := gethostbyname( DataBuffer );
              { If still no good then error out and exit }
              if Socket_Host_Entry = nil then
              begin
                Edit2.Text := 'Could Not Convert Host Name';
                Edit3.Text := '';
              end
              else
              begin
                { Otherwise get the address }
                Socket_IP_Address.Socket_Address :=
                 Socket_Host_Entry^.Host_Address^^;
                Edit2.Text :=
                 IntToStr( Socket_IP_Address.Socket_Address.Net_Byte ) + '.' +
                 IntToStr( Socket_IP_Address.Socket_Address.Host_Byte ) + '.' +
                 IntToStr( Socket_IP_Address.Socket_Address.Local_Host_Byte ) +
                 '.' + IntToStr(
                 Socket_IP_Address.Socket_Address.Local_Machine_Byte );
                Edit3.Text :=
                 IntToStr( Socket_IP_Address.Socket_Address.
                            Full_Internet_Address );
              end;
            end;
          end;
          { Free the dummy socket }
          TempSocket.Free;
        end;
    2 : begin { Anonymous login punch }
          Edit3.Text := 'anonymous';
          CurrentRealPWString := CurrentPassWordString;
          case PasswordControlVector of
            1 : Edit4.Text := CurrentPassWordString;
            2 : Edit4.Text := '**********';
          end;
        end;
    5 : begin { Toggle subscribe/unsubscribe status }
          if Edit3.Text = 'Subscribed' then Edit3.Text := 'UnSubscribed' else
           Edit3.Text := 'Subscribed';
        end;
  end;
end;

procedure TCCICInfoDlg.ListBox2Click(Sender: TObject);
var TheWorkingList  : TList;
    Counter_1       : Integer;
    Finished        : Boolean;
begin
  { Use Tag vector to find out how to interpret a click }
  case Tag of
    2 : begin
          { If nothing in list box then exit }
          if ListBox2.ItemIndex = -1 then exit;
          { Use the data in the Working FTP Site List TList }
          with PConnectionsRecord(
           TheWorkingFTPSL.Items[ ListBox2.ItemIndex ] )^ do
          begin
              Edit1.Text := CProfile;
              Edit2.Text := CIPAddress;
              Edit3.Text := CUserName;
              CurrentRealPWString := CPassword;
              case PasswordControlVector of
                1 : Edit4.Text := CPassword;
                2 : Edit4.Text := '**********';
              end;
              Edit5.Text := CStartDir;
          end;
        end;
    4 : begin
          { If nothing in list box then exit }
          if ListBox2.ItemIndex = -1 then exit;
          { Use the data in the Working FTP Site List TList }
          with PConnectionsRecord(
           TheWorkingNSSL.Items[ ListBox2.ItemIndex ] )^ do
          begin
              Edit1.Text := CProfile;
              Edit2.Text := CIPAddress;
          end;
        end;
    5 : begin
          { If nothing in list box then exit }
          if ListBox2.ItemIndex = -1 then exit;
          { Use the data in the Working FTP Site List TList }
          with PNewsGroupRecord(
           TheWorkingNRCSL.Items[ ListBox2.ItemIndex ] )^ do
          begin
              Edit1.Text := GName;
              Edit2.Text := GRealName;
              if GSubScribed then Edit3.Text := 'Subscribed' else
               Edit3.Text := 'UnSubscribed';
          end;
        end;
  end;
end;

{ This procedure saves the newly modified list of stuff to its base }
procedure TCCICInfoDlg.BitBtn1Click(Sender: TObject);
var Counter_1  : Integer;            { Loop counter        }
    ThePointer : PConnectionsRecord; { Generic TCR Pointer }
    TheNGRecord : PNewsGroupRecord;
begin
  { Use the tag vector to find out what to do }
  case Tag of
    2 : begin { Do FTP Site List }
          { dispose the old FTP site list's pointers }
          for Counter_1 := 0 to TheFTPSiteList.Count - 1 do
          begin
            Dispose( PConnectionsRecord( TheFTPSiteList.Items[ Counter_1 ] ));
          end;
          { Clear the lists }
          TheFTPSiteList.Clear;
          CCInetCCForm.ComboBox1.Clear;
          { Add the new info }
          for Counter_1 := 0 to TheWorkingFTPSL.Count - 1 do
          begin
            { Create a new pointer }
            New( ThePointer );
            { Move the data into it }
            ThePointer^ :=
             PConnectionsRecord( TheWorkingFTPSL.Items[ Counter_1 ] )^;
            { Add the item }
            TheFTPSiteList.Add( ThePointer );
            CCINetCCForm.ComboBox1.Items.Add( PConnectionsRecord(
             TheFTPSiteList.Items[ Counter_1 ] )^.CProfile );
          end;
          CCINetCCForm.ComboBox1.ItemIndex := 0;
        end;
    4 : begin { Do NNTP Site List }
          { dispose the old FTP site list's pointers }
          for Counter_1 := 0 to TheNewsServerList.Count - 1 do
          begin
            Dispose( PConnectionsRecord( TheNewsServerList.Items[ Counter_1 ] ));
          end;
          { Clear the lists }
          TheNewsServerList.Clear;
          CCInetCCForm.ComboBox1.Clear;
          { Add the new info }
          for Counter_1 := 0 to TheWorkingNSSL.Count - 1 do
          begin
            { Create a new pointer }
            New( ThePointer );
            { Move the data into it }
            ThePointer^ :=
             PConnectionsRecord( TheWorkingNSSL.Items[ Counter_1 ] )^;
            { Add the item }
            TheNewsServerList.Add( ThePointer );
            CCINetCCForm.ComboBox1.Items.Add( PConnectionsRecord(
             TheNewsServerList.Items[ Counter_1 ] )^.CProfile );
          end;
          CCINetCCForm.ComboBox1.ItemIndex := 0;
        end;
    5 : begin { Do NNTP Newsgroups List }
          { dispose the old NG list's pointers }
          for Counter_1 := 0 to TheNewsRCList.Count - 1 do
          begin
            Dispose( PNewsGroupRecord( TheNewsRCList.Items[ Counter_1 ] ));
          end;
          { Clear the lists }
          TheNewsRCList.Clear;
          { Add the new info }
          for Counter_1 := 0 to TheWorkingNRCSL.Count - 1 do
          begin
            { Create a new pointer }
            New( TheNGRecord );
            { Move the data into it }
            TheNGRecord^ :=
             PNewsGroupRecord( TheWorkingNRCSL.Items[ Counter_1 ] )^;
            { Add the item }
            TheNewsRCList.Add( TheNGRecord );
          end;
        end;
  end;
  { Leave }
  Close;
end;

{ This method cancels any changes made from entries in current setup & exits}
procedure TCCICInfoDlg.BitBtn2Click(Sender: TObject);
var Counter_1  : Integer;            { Loop counter        }
    ThePointer : PConnectionsRecord; { Generic TCR Pointer }
    TheNGRecord : PNewsGroupRecord;
begin
  { Use Tag vector do decide what to reset }
  case Tag of
    2 : begin { Reset FTP Site list }
          { Dispose of all the old pointers }
          for Counter_1 := 0 to TheWorkingFTPSL.Count - 1 do
          begin
            Dispose( PConnectionsRecord( TheWorkingFTPSL.Items[ Counter_1 ] ));
          end;
          { Clear the working list }
          TheWorkingFTPSL.Clear;
          { Clear the listbox }
          ListBox2.Clear;
          { Then rebuild the working list and display listbox }
          for Counter_1 := 0 to TheFTPSiteList.Count - 1 do
          begin
            { Create the record }
            New( ThePointer );
            { Move data in }
            ThePointer^ :=
             PConnectionsRecord( TheFTPSiteList.Items[ Counter_1 ] )^;
            { Add the pointer to the list }
            TheWorkingFTPSL.Add( ThePointer );
            { Add the profile name to the list }
            ListBox2.Items.Add( PConnectionsRecord(
             TheFTPSiteList.Items[ Counter_1 ] )^.CProfile );
          end;
        end;
    4 : begin { Reset NNTP Site list }
          { Dispose of all the old pointers }
          for Counter_1 := 0 to TheWorkingNSSL.Count - 1 do
          begin
            Dispose( PConnectionsRecord( TheWorkingNSSL.Items[ Counter_1 ] ));
          end;
          { Clear the working list }
          TheWorkingNSSL.Clear;
          { Clear the listbox }
          ListBox2.Clear;
          { Then rebuild the working list and display listbox }
          for Counter_1 := 0 to TheNewsServerList.Count - 1 do
          begin
            { Create the record }
            New( ThePointer );
            { Move data in }
            ThePointer^ :=
             PConnectionsRecord( TheNewsServerList.Items[ Counter_1 ] )^;
            { Add the pointer to the list }
            TheWorkingNSSL.Add( ThePointer );
            { Add the profile name to the list }
            ListBox2.Items.Add( PConnectionsRecord(
             TheNewsServerList.Items[ Counter_1 ] )^.CProfile );
          end;
        end;
    5 : begin { Reset NNTP NG list }
          { Dispose of all the old pointers }
          for Counter_1 := 0 to TheWorkingNRCSL.Count - 1 do
          begin
            Dispose( PNewsGroupRecord( TheWorkingNRCSL.Items[ Counter_1 ] ));
          end;
          { Clear the working list }
          TheWorkingNRCSL.Clear;
          { Clear the listbox }
          ListBox2.Clear;
          { Then rebuild the working list and display listbox }
          for Counter_1 := 0 to TheNewsRCList.Count - 1 do
          begin
            { Create the record }
            New( TheNGRecord );
            { Move data in }
            TheNGRecord^ :=
             PNewsGroupRecord( TheNewsRCList.Items[ Counter_1 ] )^;
            { Add the pointer to the list }
            TheWorkingNRCSL.Add( TheNGRecord );
            { Add the profile name to the list }
            ListBox2.Items.Add( PNewsGroupRecord(
             TheNewsRCList.Items[ Counter_1 ] )^.GName );
          end;
        end;
  end;
  { Leave }
  Close;
end;

procedure TCCICInfoDlg.Edit4Exit(Sender: TObject);
begin
  { Use tag vector to determine action }
  case Tag of
    2 : begin
          { If Edit4 is modified then mangle pw }
          if Edit4.Modified then
          begin
            { Save pw in either case, but mangle if masked }
            case PasswordControlVector of
              1 : CurrentRealPWString := Edit4.Text;
              2 : begin
                    CurrentRealPWString := Edit4.Text;
                    Edit4.Text := '***********';
                  end;
            end;
          end;
        end;
  end;
end;

{ Add button; do various add actions }
procedure TCCICInfoDlg.Button2Click(Sender: TObject);
var ThePointer  : PConnectionsRecord; { PCR Pointer }
    TheNGRecord : PNewsGroupRecord;
    TempList    : TList;
begin
  { Tag vector control as usual }
  case Tag of
    2 : begin { add new FTP site list entry }
          { Creat new PCR pointer }
          New( ThePointer );
          { Add in the data from the text fields }
          with ThePointer^ do
          begin
            CProfile   := Edit1.Text;
            CIPAddress := Edit2.Text;;
            CUserName  := Edit3.Text;
            { Put in the real pw string }
            CPassword  := CurrentRealPWString;
            CStartDir  := Edit5.Text;
          end;
          { Add pointer to working list }
          TheWorkingFTPSL.Add( ThePointer );
          { Add it to the listbox }
          ListBox2.Items.Add( ThePointer^.CProfile );
          { And set the pointer to it }
          ListBox2.ItemIndex := ListBox2.Items.Count - 1;
        end;
    4 : begin { add new NNTP site list entry }
          { Creat new PCR pointer }
          New( ThePointer );
          { Add in the data from the text fields }
          with ThePointer^ do
          begin
            CProfile   := Edit1.Text;
            CIPAddress := Edit2.Text;;
            CUserName  := '';
            CPassword  := '';
            CStartDir  := '';
          end;
          { Add pointer to working list }
          TheWorkingNSSL.Add( ThePointer );
          { Add it to the listbox }
          ListBox2.Items.Add( ThePointer^.CProfile );
          { And set the pointer to it }
          ListBox2.ItemIndex := ListBox2.Items.Count - 1;
        end;
    5 : begin { add new NNTP newsgroup list entry }
          { Creat new PCR pointer }
          New( TheNGRecord );
          TempList := TList.Create;
          { Add in the data from the text fields }
          with TheNGRecord^ do
          begin
            GName     := Edit1.Text;
            GRealName := Edit2.Text;;
            if Edit3.Text = 'UnSubscribed' then GSubscribed := false else
             GSubScribed := true;
            GLowest              := 0;
            GHighest             := 0;
            GTotalNew            := 0;
            GTotalAvailable      := 0;
            GLowestAvailable     := 0;
            GHighestAvailable    := 0;
            GPostable            := true;
            GTotalArticles       := 0;
            GTotalUnReadArticles := 0;
            GIDNumber            := TheWorkingNRCSL.Count + 1;
            GFileName            := 'NL' + IntToStr( WhichServer ) + 'G' +
                                    IntToStr( GIDNumber) + '.NGR';
            GLTag                := Longint( TempList );
          end;
          { Add pointer to working list }
          TheWorkingNRCSL.Add( TheNGRecord );
          { Add it to the listbox }
          ListBox2.Items.Add( TheNGRecord^.GName );
          { And set the pointer to it }
          ListBox2.ItemIndex := ListBox2.Items.Count - 1;
        end;
  end;
end;

{ This is the modify button }
procedure TCCICInfoDlg.Button3Click(Sender: TObject);
begin
  { Use Tag vector as usual }
  case Tag of
    2 : begin
          { if nothing to modify the exit }
          if ListBox2.ItemIndex = -1 then exit;
          { get record of current listbox pointer & put in data }
          with PConnectionsRecord(
           TheWorkingFTPSL.Items[ ListBox2.ItemIndex ] )^ do
          begin
            CProfile   := Edit1.Text;
            CIPAddress := Edit2.Text;;
            CUserName  := Edit3.Text;
            { Put in the real pw string }
            CPassword  := CurrentRealPWString;
            CStartDir  := Edit5.Text;
          end;
          { Make sure the display matches the edit control }
          ListBox2.Items[ ListBox2.ItemIndex ] := Edit1.Text;
        end;
    4 : begin
          { if nothing to modify the exit }
          if ListBox2.ItemIndex = -1 then exit;
          { get record of current listbox pointer & put in data }
          with PConnectionsRecord(
           TheWorkingNSSL.Items[ ListBox2.ItemIndex ] )^ do
          begin
            CProfile   := Edit1.Text;
            CIPAddress := Edit2.Text;
            CUserName  := '';
            CPassword  := '';
            CStartDir  := '';
          end;
          { Make sure the display matches the edit control }
          ListBox2.Items[ ListBox2.ItemIndex ] := Edit1.Text;
        end;
    5 : begin
          { if nothing to modify the exit }
          if ListBox2.ItemIndex = -1 then exit;
          { get record of current listbox pointer & put in data }
          with PNewsGroupRecord(
           TheWorkingNRCSL.Items[ ListBox2.ItemIndex ] )^ do
          begin
            GName     := Edit1.Text;
            GRealName := Edit2.Text;;
            if Edit3.Text = 'UnSubscribed' then GSubscribed := false else
             GSubScribed := true;
          end;
          { Make sure the display matches the edit control }
          ListBox2.Items[ ListBox2.ItemIndex ] := Edit1.Text;
        end;
  end;
end;

{ This is the delete button }
procedure TCCICInfoDlg.Button4Click(Sender: TObject);
var MessageString : String; { String holder }
begin
  { Use tag control vector }
  case Tag of
    2 : begin
          { If nothing to delete then leave }
          if Listbox2.Itemindex = -1 then exit;
          { Set up display }
          MessageString := 'Delete Entry ' + Edit1.Text + '?';
          { Display message box and get result }
          if MessageDlg( MessageString , mtConfirmation , mbYesNoCancel , 0 )
           = mrYes then
          begin
            { if ok delete then remove item from working sl }
            TheWorkingFTPSL.Delete( ListBox2.ItemIndex );
            { delete from listbox }
            ListBox2.Items.Delete( ListBox2.ItemIndex );
            { If nothing left set itemindex and clear edits }
            if ListBox2.Items.Count = 0 then
            begin
              ListBox2.ItemIndex := -1;
              Edit1.Text := '';
              Edit2.Text := '';
              Edit3.Text := '';
              Edit4.Text := '';
              Edit5.Text := '';
            end
            else
            begin
              { Reset listbox pointer }
              ListBox2.ItemIndex  := 0;
              { and reset display to new item }
              with PConnectionsRecord(
               TheWorkingFTPSL.Items[ ListBox2.ItemIndex ] )^ do
              begin
                Edit1.Text := CProfile;
                Edit2.Text := CIPAddress;
                Edit3.Text := CUserName;
                CurrentRealPWString := CPassword;
                case PasswordControlVector of
                  1 : Edit4.Text := CPassword;
                  2 : Edit4.Text := '**********';
                end;
                Edit5.Text := CStartDir;
              end;
            end;
          end;
        end;
    4 : begin
          { If nothing to delete then leave }
          if Listbox2.Itemindex = -1 then exit;
          { Set up display }
          MessageString := 'Delete Entry ' + Edit1.Text + '?';
          { Display message box and get result }
          if MessageDlg( MessageString , mtConfirmation , mbYesNoCancel , 0 )
           = mrYes then
          begin
            { if ok delete then remove item from working sl }
            TheWorkingNSSL.Delete( ListBox2.ItemIndex );
            { delete from listbox }
            ListBox2.Items.Delete( ListBox2.ItemIndex );
            { If nothing left set itemindex and clear edits }
            if ListBox2.Items.Count = 0 then
            begin
              ListBox2.ItemIndex := -1;
              Edit1.Text := '';
              Edit2.Text := '';
              Edit3.Text := '';
              Edit4.Text := '';
              Edit5.Text := '';
            end
            else
            begin
              { Reset listbox pointer }
              ListBox2.ItemIndex  := 0;
              { and reset display to new item }
              with PConnectionsRecord(
               TheWorkingNSSL.Items[ ListBox2.ItemIndex ] )^ do
              begin
                Edit1.Text := CProfile;
                Edit2.Text := CIPAddress;
              end;
            end;
          end;
        end;
    5 : begin
          { If nothing to delete then leave }
          if Listbox2.Itemindex = -1 then exit;
          { Set up display }
          MessageString := 'Delete Entry ' + Edit1.Text + '?';
          { Display message box and get result }
          if MessageDlg( MessageString , mtConfirmation , mbYesNoCancel , 0 )
           = mrYes then
          begin
            { if ok delete then remove item from working sl }
            TheWorkingNRCSL.Delete( ListBox2.ItemIndex );
            { delete from listbox }
            ListBox2.Items.Delete( ListBox2.ItemIndex );
            { If nothing left set itemindex and clear edits }
            if ListBox2.Items.Count = 0 then
            begin
              ListBox2.ItemIndex := -1;
              Edit1.Text := '';
              Edit2.Text := '';
              Edit3.Text := '';
              Edit4.Text := '';
              Edit5.Text := '';
            end
            else
            begin
              { Reset listbox pointer }
              ListBox2.ItemIndex  := 0;
              { and reset display to new item }
              with PNewsGroupRecord(
               TheWorkingNRCSL.Items[ ListBox2.ItemIndex ] )^ do
              begin
                Edit1.Text := GName;
                Edit2.Text := GRealName;
                if not GSubscribed then Edit3.Text := 'UnSubscribed' else
                 Edit3.Text := 'SubScribed';
              end;
            end;
          end;
        end;
  end;
end;

procedure TCCICInfoDlg.ListBox1DblClick(Sender: TObject);
begin
  case Tag of
    5 : begin
          if ListBox1.ItemIndex <> -1 then
           Edit2.Text := ListBox1.Items[ Listbox1.ItemIndex ];
        end;
  end;
end;

end.