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winsock login

Posted on 2006-07-24
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hello,
I would like to test my email that I made in php with mydomain.com
and I just need a very little tool using winsock to connect
to mydomain.com and login using email@mydomain.com and pasword123..
how can I do this ?
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Question by:aplelois
2 Comments
 
LVL 12

Expert Comment

by:Ivanov_G
ID: 17169990
You can use INDY components. They have POP3/IMAP clients. Demos available at: http://www.indyproject.org/Sockets/Demos/index.en.aspx

If you want to use Sockets, you must have implementations of POP3/IMAP protocol. You have to perform the following:

1) Connect "mydomain.com" on port 110 (for POP3)
2) Send "USER username"
3) Send "PASS password"
4) Send "STAT" for mailbox status
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Accepted Solution

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TheRealLoki earned 2000 total points
ID: 17173209
here's a TClientSocket demo I made for you
It's pretty basic, but should give you a good idea how to do what you want

Drop a TClientSocket, a TListbox, a TMemo, and a TButton on the form
then connect the button up to the Button1 "OnClick" event below
and connect the ClientSocket's "OnConnect", "OnDisconnect" and "OnRead" events to the socket events below also

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ScktComp; // <-- this unit is required for the TClientSocket

const
    stage_none = 0;
    stage_connected = 1;
    stage_sentuser = 2;
    stage_sentpass = 3;
    stage_sentstat = 4;
    stage_sentlist = 5;
type
  TForm1 = class(TForm)
    ClientSocket1: TClientSocket;
    Button1: TButton;
    Memo1: TMemo;
    ListBox1: TListBox;
    procedure Button1Click(Sender: TObject);
    procedure ClientSocket1Read(Sender: TObject; Socket: TCustomWinSocket);
    procedure ClientSocket1Connect(Sender: TObject; Socket: TCustomWinSocket);
    procedure ClientSocket1Disconnect(Sender: TObject; Socket: TCustomWinSocket);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
    begin
        ClientSocket1.Tag := stage_none;
        ClientSocket1.Host := 'pop3.mydomain.com';
        ClientSocket1.Port := 110;
        ClientSocket1.Open;
    end;

procedure TForm1.ClientSocket1Read(Sender: TObject; Socket: TCustomWinSocket);
    var
        i: integer;
        s: string;
        sl: tstringlist;
    begin
        s := socket.ReceiveText;
        if s = '' then exit;
        memo1.lines.add(s);
        case ClientSocket1.Tag of
            stage_connected:
                begin
                    if pos('+OK', S) = 1 then
                    begin
                        ClientSocket1.Tag := stage_sentuser;
                        Socket.SendText('USER email@mydomain.com' +#13#10)
                    end
                    else
                    begin
                        memo1.lines.add('disconnecting due to logon error');
                        ClientSocket1.Close;
                    end;
                end;
            stage_sentuser:
                begin
                    if pos('+OK', S) = 1 then
                    begin
                        ClientSocket1.Tag := stage_sentpass;
                        Socket.SendText('PASS password123' +#13#10);
                    end
                    else
                    begin
                        memo1.lines.add('disconnecting due to logon error');
                        ClientSocket1.Close;
                    end;
                end;
            stage_sentpass:
                begin
                    if pos('+OK', S) = 1 then
                    begin
                        ClientSocket1.Tag := stage_sentstat;
                        Socket.SendText('STAT' +#13#10);
                    end
                    else
                    begin
                        memo1.lines.add('disconnecting due to logon error');
                        ClientSocket1.Close;
                    end;
                end;
            stage_sentstat:
                begin
                    if pos('+OK', S) = 1 then
                    begin
                        ClientSocket1.Tag := stage_sentlist;
                        Socket.SendText('LIST' +#13#10);
                    end
                    else
                    begin
                        memo1.lines.add('disconnecting due to STAT error');
                        ClientSocket1.Close;
                    end;
                end;
            stage_sentlist:
                begin
                    sl := tstringlist.create;
                    try
                        sl.Text := s;
                        for i := 0 to pred(sl.count) do
                        begin
                            if pos('.', SL[i]) = 1 then
                            begin
                                memo1.lines.add('finished LIST, so closing now');
                                ClientSocket1.Close;
                            end // otherwise we just display the list until we get the dot line
                            else if pos('+OK', SL[i]) <> 1 then
                              listbox1.items.add(SL[i]);
// if we wanted to do anything with the list, we could do it here...for now i'll just stick it in a listbox

                        end;
                    finally
                        sl.clear;
                        sl.free;
                    end;
                end;
            end;
    end;

procedure TForm1.ClientSocket1Connect(Sender: TObject; Socket: TCustomWinSocket);
    begin
        ClientSocket1.Tag := stage_connected;
        memo1.lines.add('connected');
    end;

procedure TForm1.ClientSocket1Disconnect(Sender: TObject; Socket: TCustomWinSocket);
    begin
        ClientSocket1.Tag := stage_none;
        memo1.lines.add('disconnected');
    end;

end.

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