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Author:       Fran鏾is PIETTE
Object:       RobotMail is a demo program for the SMTP and MBX component from
              the ICS package. It's a kind of spam machine...
Creation:     May 21, 1998
Version:      1.10  (Tested with Delphi 3 and 4)
EMail:        francois.piette@pophost.eunet.be    francois.piette@rtfm.be
              http://www.rtfm.be/fpiette
Support:      Use the mailing list twsocket@rtfm.be See website for details.
Legal issues: Copyright (C) 1998 by Fran鏾is PIETTE
              Rue de Grady 24, 4053 Embourg, Belgium. Fax: +32-4-365.74.56
              <francois.piette@pophost.eunet.be>

              This software is provided 'as-is', without any express or
              implied warranty.  In no event will the author be held liable
              for any  damages arising from the use of this software.

              Permission is granted to anyone to use this software for any
              purpose, including commercial applications, and to alter it
              and redistribute it freely, subject to the following
              restrictions:

              1. The origin of this software must not be misrepresented,
                 you must not claim that you wrote the original software.
                 If you use this software in a product, an acknowledgment
                 in the product documentation would be appreciated but is
                 not required.

              2. Altered source versions must be plainly marked as such, and
                 must not be misrepresented as being the original software.

              3. This notice may not be removed or altered from any source
                 distribution.

Updates:
Aug 03, 1998 V1.10 Adapted with new TSmtpCli component


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unit MailRob1;

interface

uses
  WinTypes, WinProcs, Messages, SysUtils, Classes, Graphics, Controls, Forms,
  Dialogs, IniFiles, MbxFile, StdCtrls, ExtCtrls, SmtpProt, DB, DBTables;

const
  RobotMailVersion = 110;

type
  TMailRobForm = class(TForm)
    MbxHandler: TMbxHandler;
    DisplayMemo: TMemo;
    TopPanel: TPanel;
    GetFromMbxButton: TButton;
    EMailMemo: TMemo;
    MiddlePanel: TPanel;
    Label1: TLabel;
    HostEdit: TEdit;
    PortEdit: TEdit;
    FromEdit: TEdit;
    Label2: TLabel;
    Subject: TLabel;
    SubjectEdit: TEdit;
    SignOnEdit: TEdit;
    Label4: TLabel;
    SmtpClient: TSyncSmtpCli;
    MbxFileEdit: TEdit;
    SendButton: TButton;
    SaveToListButton: TButton;
    LstFileEdit: TEdit;
    LoadFromListButton: TButton;
    InfoLabel: TLabel;
    Label3: TLabel;
    MsgFileEdit: TEdit;
    MsgFileLoadButton: TButton;
    SaveMsgFileButton: TButton;
    OpenDialog1: TOpenDialog;
    procedure GetFromMbxButtonClick(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormCreate(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure SendButtonClick(Sender: TObject);
    procedure SmtpClientGetData(Sender: TObject; LineNum: Integer;
      MsgLine: PChar; MaxLen: Integer; var More: Boolean);
    procedure SaveToListButtonClick(Sender: TObject);
    procedure LoadFromListButtonClick(Sender: TObject);
    procedure SmtpClientCommand(Sender: TObject; Msg: String);
    procedure SmtpClientResponse(Sender: TObject; Msg: String);
    procedure MsgFileLoadButtonClick(Sender: TObject);
    procedure SaveMsgFileButtonClick(Sender: TObject);
    procedure MbxFileEditDblClick(Sender: TObject);
    procedure MsgFileEditDblClick(Sender: TObject);
    procedure LstFileEditDblClick(Sender: TObject);
  private
    FIniFileName         : String;
    FInitialized         : Boolean;
    FTxtFileName         : String;
    FMsgLines            : TStrings;
    FNames               : TList;
    FLogFileName         : String;
    FLog                 : TStream;
    FRunning             : Boolean;
    procedure ProcessMsg;
    function  SearchHeader(Key : String) : Integer;
    procedure ClearNames;
    procedure CommitLog;
    procedure CloseLog;
    procedure Log(const Msg : String);
    procedure LoadEMailMessage(FileName : String);
    procedure SaveEMailMessage(FileName : String);
  public
    { D閏larations publiques }
  end;

var
  MailRobForm: TMailRobForm;

implementation

{$R *.DFM}
const
    SectionWindow   = 'Window';
    KeyTop          = 'Top';
    KeyLeft         = 'Left';
    KeyWidth        = 'Width';
    KeyHeight       = 'Height';
    SectionData     = 'Data';
    KeyServer       = 'MailServer';
    KeyPort         = 'SmtpPort';
    KeyFrom         = 'From';
    KeySignOn       = 'SignOn';
    KeyMbxFile      = 'MbxFile';
    KeyLstFile      = 'LstFile';
    KeyMsgFile      = 'MsgFile';

    CrLf : array [0..1] of char = (#13, #10);

{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TMailRobForm.FormCreate(Sender: TObject);
begin
    FMsgLines    := TStringList.Create;
    FNames       := TList.Create;
    FIniFileName := LowerCase(Application.ExeName);
    FIniFileName := Copy(FIniFileName, 1, Length(FIniFileName) - 3) + 'ini';
    FTxtFileName := LowerCase(Application.ExeName);
    FTxtFileName := Copy(FTxtFileName, 1, Length(FTxtFileName) - 3) + 'txt';
    FLogFileName := LowerCase(Application.ExeName);
    FLogFileName := Copy(FLogFileName, 1, Length(FLogFileName) - 3) + 'log';
    CommitLog;
    Log('---- Start ----');
    InfoLabel.Caption := '';
end;


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procedure TMailRobForm.FormShow(Sender: TObject);
var
    IniFile : TIniFile;
begin
    if not FInitialized then begin
        FInitialized := TRUE;
        DisplayMemo.Clear;

        IniFile          := TIniFile.Create(FIniFileName);
        Top              := IniFile.ReadInteger(SectionWindow, KeyTop,    Top);
        Left             := IniFile.ReadInteger(SectionWindow, KeyLeft,   Left);
        Width            := IniFile.ReadInteger(SectionWindow, KeyWidth,  Width);
        Height           := IniFile.ReadInteger(SectionWindow, KeyHeight, Height);
        HostEdit.Text    := IniFile.ReadString(SectionData, KeyServer,  'mail.server.provider');
        PortEdit.Text    := IniFile.ReadString(SectionData, KeyPort,    'smtp');
        FromEdit.Text    := IniFile.ReadString(SectionData, KeyFrom,    'your.email@your.provider');
        SignOnEdit.Text  := IniFile.ReadString(SectionData, KeySignOn,  'Your full name');
        MbxFileEdit.Text := IniFile.ReadString(SectionData, KeyMbxFile, '');
        LstFileEdit.Text := IniFile.ReadString(SectionData, KeyLstFile, 'c:\temp\emails.txt');
        MsgFileEdit.Text := IniFile.ReadString(SectionData, KeyMsgFile, 'c:\temp\emailmsg.txt');
        IniFile.Free;
        LoadEMailMessage(FTxtFileName);
    end;
    CloseLog;
end;


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procedure TMailRobForm.FormClose(Sender: TObject; var Action: TCloseAction);
var
    IniFile : TIniFile;
begin
    Log('Stop');
    IniFile := TIniFile.Create(FIniFileName);
    IniFile.WriteInteger(SectionWindow, KeyTop,       Top);
    IniFile.WriteInteger(SectionWindow, KeyLeft,      Left);
    IniFile.WriteInteger(SectionWindow, KeyWidth,     Width);
    IniFile.WriteInteger(SectionWindow, KeyHeight,    Height);
    IniFile.WriteSTring(SectionData, KeyServer,  HostEdit.Text);
    IniFile.WriteSTring(SectionData, KeyPort,    PortEdit.Text);
    IniFile.WriteSTring(SectionData, KeyFrom,    FromEdit.Text);
    IniFile.WriteSTring(SectionData, KeySignOn,  SignOnEdit.Text);
    IniFile.WriteSTring(SectionData, KeyMbxFile, MbxFileEdit.Text);
    IniFile.WriteSTring(SectionData, KeyLstFile, LstFileEdit.Text);
    IniFile.WriteSTring(SectionData, KeyMsgFile, MsgFileEdit.Text);
    IniFile.Free;
    SaveEMailMessage(FTxtFileName);
    MbxHandler.Active := FALSE;
    FMsgLines.Destroy;
    ClearNames;
    FNames.Destroy;
end;


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procedure TMailRobForm.LoadEMailMessage(FileName : String);
begin
    EMailMemo.Clear;
    SubjectEdit.Text := '';
    try
        EMailMemo.Lines.LoadFromFile(FileName);
        if EMailMemo.Lines.Count > 0 then begin
            SubjectEdit.Text := EMailMemo.Lines[0];
            EMailMemo.Lines.Delete(0);
        end;
    except
        on E:Exception do Log('LoadEMailMessage failed: ' + E.Message);
    end;
end;


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procedure TMailRobForm.SaveEMailMessage(FileName : String);
begin
    EMailMemo.Lines.Insert(0, SubjectEdit.Text);
    EMailMemo.Lines.SaveToFile(FileName);
    EMailMemo.Lines.Delete(0);
end;


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procedure TMailRobForm.CommitLog;
begin
    if Assigned(FLog) then
        FLog.Destroy;
    try
        FLog := TFileStream.Create(FLogFileName, fmOpenReadWrite or fmShareDenyNone);
    except
        on E:EFOpenError do begin
            try
                FLog := TFileStream.Create(FLogFileName, fmCreate);
                FLog.Destroy;
                FLog := TFileStream.Create(FLogFileName, fmOpenReadWrite or fmShareDenyNone);
            except
                DisplayMemo.Lines.Add('Can''t create log file ' + FLogFileName);
                FLog := nil;
            end;
        end;
    end;
end;


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procedure TMailRobForm.CloseLog;
begin
    if Assigned(FLog) then begin
       FLog.Destroy;
       FLog := nil;
    end;
end;


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procedure TMailRobForm.Log(const Msg : String);
var
    Buf : String;
begin
    if not Assigned(FLog) then begin
        CommitLog;
        if not Assigned(FLog) then
            Exit;
    end;
    Buf := FormatDateTime('yyyy/mm/dd hh:nn:ss ', Now);
    FLog.Seek(0, soFromEnd);
    FLog.WriteBuffer(Buf[1], Length(Buf));
    FLog.WriteBuffer(Msg[1], Length(Msg));
    FLog.WriteBuffer(CrLf, 2);
end;


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procedure TMailRobForm.GetFromMbxButtonClick(Sender: TObject);
begin
    if MbxFileEdit.Text = '' then begin
        Application.MessageBox('Please enter the file name in the edit box !',
                               'Warning', MB_OK);        
        Exit;
    end;

    GetFromMbxButton.Enabled := FALSE;
    try
        MbxHandler.FileName := MbxFileEdit.Text;
        MbxHandler.Active   := TRUE;
        ProcessMsg;
    finally
        GetFromMbxButton.Enabled := TRUE;
        MbxHandler.Active := FALSE;
    end;
end;


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function TMailRobForm.SearchHeader(Key : String) : Integer;
var
    Line  : String;
    I, J  : Integer;
begin
    Key    := UpperCase(Key);
    Result := -1;
    I      := 0;
    while I < FMsgLines.Count do begin
        Line := FMsgLines.Strings[I];
        if Length(Line) = 0 then       { End of header }
            Break;
        J := Pos(':', Line);
        if (J > 0) and (UpperCase(Copy(Line, 1, J - 1)) = Key) then begin
            Result := I;
            Break;
        end;
        Inc(I);
    end;
end;


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procedure TMailRobForm.ClearNames;
begin
    while FNames.Count > 0 do begin
        FreeMem(FNames.Items[0], StrLen(PChar(FNames.Items[0])) + 1);
        FNames.Delete(0);
    end;
end;


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function StringCompare(Item1, Item2: Pointer): Integer;
begin
    Result := StrComp(PChar(Item1), PChar(Item2));