Memo an E-Mail versenden.

[bernhard_LA]

Anbei ein Code Ausschnitt aus meinem E MAil Programm, alles mit DELPHI XE2 und INDY 10 ....

Delphi-Quellcode:

unit Unit_simpleEMail;

///
/// ***   very simple e mail client with INDY 10    ****
///
/// by BDLM    :
///
/// version 01 :   can read e mails from the host
/// can write e mails
///
///
///
///
///
///
///
///
///
///
///
///

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants,
  System.Classes, Vcl.Graphics, email_classes,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.Menus, Vcl.ComCtrls,
  IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient,
  IdSMTP,  Idtext, IdGlobalProtocols, IdGlobal,
  IdAttachment, IdMessageParts, IdAttachmentFile,
  IdExplicitTLSClientServerBase, IdMessageClient, IdPOP3, contnrs,
  IdMessage, Vcl.StdCtrls, Vcl.ExtCtrls, inifiles, IdSMTPBase;

type



  TSimpleMailForm = class(TForm)
    MainMenu1: TMainMenu;
    SimpleMailStatusBar: TStatusBar;
    File1: TMenuItem;
    Mail1: TMenuItem;
    SetUp1: TMenuItem;
    Exit1: TMenuItem;
    EmailSettingsMenuItem: TMenuItem;
    MyIndyPOP3: TIdPOP3;
    Connect1: TMenuItem;
    EMails1: TMenuItem;
    Panel1: TPanel;
    Panel2: TPanel;
    EMailInListBox: TListBox;
    Splitter1: TSplitter;
    WriteNewEMail1: TMenuItem;
    Panel3: TPanel;
    MailSubjectLabel: TLabel;
    MailFromLabel: TLabel;
    CCLabel: TLabel;
    BCCLabel: TLabel;
    MailBoxPanel: TPanel;
    Help1: TMenuItem;
    ber1: TMenuItem;
    MyIndySMTP: TIdSMTP;
    MyNewIndyMessage: TIdMessage;
    Benutzerliste1: TMenuItem;
    ffneBenutzerliste1: TMenuItem;
    MyOpenDialog: TOpenDialog;
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    TabSheet2: TTabSheet;
    TabSheet3: TTabSheet;
    MailBodyMemo: TMemo;
    RichEdit1: TRichEdit;
    procedure Exit1Click(Sender: TObject);
    procedure Connect1Click(Sender: TObject);
    procedure EMails1Click(Sender: TObject);
    procedure EmailSettingsMenuItemClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure EMailInListBoxDblClick(Sender: TObject);
    procedure WriteNewEMail1Click(Sender: TObject);
    procedure ber1Click(Sender: TObject);
    procedure Benutzerliste1Click(Sender: TObject);
    procedure ffneBenutzerliste1Click(Sender: TObject);
  private
    { Private-Deklarationen }
    FEMailUserList: TEMailUserList;
    FuserListFile: String;
    Factiveuserindex: Integer;

  public
    { Public-Deklarationen }
    MsgList: TObjectlist;

    Msg_attach : String;

    msg_to : String;

    msg_sub : String;

    msg_Line : string;



    SelectedMailItem: Integer;

    FActiveEMailUser: TEMailUser;

    Attachment: TIdAttachment;

    procedure SetActiveUser(aUserIndex: Integer);

    procedure LoadPostOfficeParameter(aFile: String);

    procedure SetSMTPValues(Sender: TObject);

    procedure SendMail(edfrom, edto, edcc, edBcc, edSubject: string;
      edContent: TStrings);

    procedure AttachFile(aAttachmentFilename: String);

    procedure DisplayMultiPartAlternative(aMsg: TIdMessage; aParentIndex, aLastIndex: Integer);

    procedure DisplayMultiPartMixed(aMsg: TIdMessage; aParentIndex, aLastIndex: Integer);

    procedure DisplayPlainText(Body: TStrings);

    procedure DisplayHTML(Body: TStrings);

    procedure DisplayMsg(aMsg: TIdMessage);

    procedure CommandLineEMail;

  end;

var
  SimpleMailForm: TSimpleMailForm;





implementation

uses Unit_email_write, Unit_email_settings, ABOUT, Unit_emailBenutzerliste;

{$R *.dfm}

procedure TSimpleMailForm.Benutzerliste1Click(Sender: TObject);
begin

     BenutzerListenAnzeigeForm.Benutzerliste := FEMailUserList;

     BenutzerListenAnzeigeForm.Show;
end;

procedure TSimpleMailForm.ber1Click(Sender: TObject);
begin
  AboutBox.Show;
end;

procedure TSimpleMailForm.Connect1Click(Sender: TObject);
begin
  if not MyIndyPOP3.Connected then
  begin
    MyIndyPOP3.Host := EMailSettingsForm.popedHost.Text;
    MyIndyPOP3.Port := StrToInt(EMailSettingsForm.popedPort.Text);
    MyIndyPOP3.UserName := EMailSettingsForm.popedUser.Text;
    MyIndyPOP3.Password := EMailSettingsForm.popedPassword.Text;
    MyIndyPOP3.Connect;
    Connect1.checked := true;
    SimpleMailStatusBar.SimpleText := ' connected to ' +
      EMailSettingsForm.popedHost.Text;
  end
  else
  begin
    MyIndyPOP3.Disconnect;

    Connect1.checked := false;

    SimpleMailStatusBar.SimpleText := ' disconnected from ' +
      EMailSettingsForm.popedHost.Text;
  end;
end;

procedure TSimpleMailForm.EMailInListBoxDblClick(Sender: TObject);
begin

  SelectedMailItem := EMailInListBox.ItemIndex;

  SimpleMailStatusBar.SimpleText := ' MailItem ' + IntToStr(SelectedMailItem);

  MailBodyMemo.Lines.Clear;

  MyIndyPOP3.Retrieve(SelectedMailItem,
    TIdMessage(MsgList.Items[SelectedMailItem - 1]));

  MailSubjectLabel.Caption := 'Subject: ' +
    TIdMessage(MsgList.Items[SelectedMailItem]).Subject;

  MailFromLabel.Caption := 'From   : ' +
    TIdMessage(MsgList.Items[SelectedMailItem]).FromList.EMailAddresses;

  BCCLabel.Caption := 'BCC    : ' + TIdMessage(MsgList.Items[SelectedMailItem])
    .BccList.EMailAddresses;

  CCLabel.Caption := 'CC    : ' + TIdMessage(MsgList.Items[SelectedMailItem])
    .CCList.EMailAddresses;

//  MailBodyMemo.Lines.AddStrings
//     (LinesFromMsg(TIdMessage(MsgList.Items[SelectedMailItem])));

DisplayMsg( TIdMessage(MsgList.Items[SelectedMailItem]));

end;


procedure TSimpleMailForm.DisplayPlainText(Body: TStrings);
begin
  // display plain text as needed...

  MailBodyMemo.Lines.AddStrings(Body);
end;

procedure TSimpleMailForm.DisplayHTML(Body: TStrings);
begin
  // display html as needed...
  RichEdit1.Lines.AddStrings(Body)
end;

procedure TSimpleMailForm.DisplayMultiPartAlternative(aMsg: TIdMessage; aParentIndex, aLastIndex: Integer);
var
  Part: TIdMessagePart;
  i: Integer;
begin
  for i := aLastIndex-1 downto aParentIndex+1 do
  begin
    Part := aMsg.MessageParts.Items[i];
    if (Part.ParentPart = aParentIndex) and (Part is TIdText) then
    begin
      if IsHeaderMediaType(Part.ContentType, 'text/html') then
      begin
        DisplayHTML(TIdText(Part).Body);
        Exit;
      end;
      if IsHeaderMediaType(Part.ContentType, 'text/plain') then
      begin
        DisplayPlainText(TIdText(Part).Body);
        Exit;
      end;
    end;
  end;
  // nothing supported to display...
end;

procedure TSimpleMailForm.DisplayMultiPartMixed(aMsg: TIdMessage; aParentIndex, aLastIndex: Integer);
var
  Part: TIdMessagePart;
  i: Integer;
begin
  for i := aLastIndex-1 downto aParentIndex+1 do
  begin
    Part := aMsg.MessageParts.Items[i];
    if (Part.ParentPart = aParentIndex) and (Part is TIdText) then
    begin
      if IsHeaderMediaType(Part.ContentType, 'multipart/alternative') then
      begin
        DisplayMultiPartAlternative(aMsg, Part.Index, aLastIndex);
        Exit;
      end;
      if IsHeaderMediaType(Part.ContentType, 'text/html') then
      begin
          DisplayHTML(TIdText(Part).body);
        Exit;
      end;
      if IsHeaderMediaType(Part.ContentType, 'text/plain') then
      begin
          DisplayPlainText(TIdText(Part).body);
        Exit;
      end;
      aLastIndex := i;
    end;
    // nothing supported to display...
  end;
end;

procedure TSimpleMailForm.DisplayMsg(aMsg: TIdMessage);
var
  ContentType: string;
begin
  ContentType := ExtractHeaderMediaType(aMsg.ContentType);

  SimpleMailStatusBar.SimpleText := ' content Type= ' + ContentType ;

  case PosInStrArray(ContentType, ['multipart/mixed', 'multipart/alternative', 'text/html', 'text/plain','text'], False) of
    0: begin
      DisplayMultiPartAlternative(aMsg, -1, aMsg.MessageParts.Count);
      Exit;
    end;
    1: begin
      DisplayMultiPartMixed(aMsg, -1, aMsg.MessageParts.Count);
      Exit;
    end;
    2: begin
      DisplayHTML(aMsg.Body);
      Exit;
    end;
    3,4: begin
      DisplayPlainText(aMsg.Body);
      Exit;
    end;
  else
    // nothing supported to display...
  end;
end ;

procedure TSimpleMailForm.EMails1Click(Sender: TObject);
var
  MailCount: Integer;
  i: Integer;
  Msg: TIdMessage;
begin

  MailBoxPanel.Caption := ' MAILBOX  ' + MyIndyPOP3.Host;

   EMailInListBox.Items.Clear;

  if MyIndyPOP3.Connected then
  begin
    MailCount := MyIndyPOP3.CheckMessages;

    SimpleMailStatusBar.SimpleText := 'Mail Box Size ' +
      IntToStr(MyIndyPOP3.RetrieveMailBoxSize) + ' Bytes' + 'Mail Count ' +
      IntToStr(MailCount);

    for i := 1 To MailCount Do
    begin
      Msg := TIdMessage.Create;
      try

        MyIndyPOP3.RetrieveHeader(i, Msg);

        MsgList.Add(Msg);

        EMailInListBox.Items.Add(DateToStr(Msg.Date) + TimeToStr(Msg.Date) +
          ' von ' + Msg.From.Text);
      finally
        ///
      end;
    end;
  end;

end;

procedure TSimpleMailForm.Exit1Click(Sender: TObject);
begin
  close;
end;

procedure TSimpleMailForm.ffneBenutzerliste1Click(Sender: TObject);
begin
   if MyOpenDialog.Execute then
   begin
     if fileexists(FuserListFile) then
  begin

    FuserListFile := MyOpenDialog.FileName;

    FEMailUserList.LoadFromFile(FuserListFile);

    SimpleMailStatusBar.SimpleText := ' load userliste : ' +  FuserListFile  + ' nr of e mail users '  + IntToStr(FEMailUserList.count) ;

  end

   end;
end;

procedure TSimpleMailForm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  MsgList.Free;

  FEMailUserList.Free;
end;

procedure TSimpleMailForm.FormCreate(Sender: TObject);
begin
  MsgList := TObjectlist.Create;

  MailSubjectLabel.Caption := 'Subject: ';

  MailFromLabel.Caption := 'From   : ';

  BCCLabel.Caption := 'BCC : ';

  CCLabel.Caption := 'CC   : ';

  FEMailUserList := TEMailUserList.Create;

end;

procedure TSimpleMailForm.FormShow(Sender: TObject);
var
  aFile: String;
  i: Integer;
begin

  for i := 1 to ParamCount do
  begin

    if ParamStr(i) = 'userfile' then
    begin
      FuserListFile := ParamStr(i + 1);
    end;

    if ParamStr(i) = 'activeuserindex' then
    begin
      Factiveuserindex := StrToInt(ParamStr(i + 1))-1;
    end;

    if ParamStr(i) = 'msg_to' then
    begin
       Msg_To := ParamStr(i + 1);
    end;

    if ParamStr(i) = 'msg_sub' then
    begin
       Msg_sub := ParamStr(i + 1);
    end;

      if ParamStr(i) = 'msg_line' then
    begin
       Msg_line := ParamStr(i + 1);
    end;

    if ParamStr(i) = 'msg_attach' then
    begin
       Msg_attach := ParamStr(i + 1);
    end;

  end;

  ///
  ///
  /// -----------------------------------
  ///
  ///

  if fileexists(FuserListFile) then
  begin

    FEMailUserList.LoadFromFile(FuserListFile);

    SimpleMailStatusBar.SimpleText := ' load userliste : '    + '       nr of e mail users  : '  + IntToStr(FEMailUserList.count)  ;

  end
  else
  begin

  SimpleMailStatusBar.SimpleText := ' userliste not found  !  command line param  :  userfile   '  ;

  end;

  if ((Factiveuserindex > -1) and (Factiveuserindex < FEMailUserList.Count ))
  then
  begin

    SetActiveUser(Factiveuserindex);

  end;


    ///
  ///
  /// -----send a mail and close the program at the end ...----------
  ///
  ///

  if (msg_to <> '')  and (msg_line<> '')  and (msg_sub <>'') then
       begin

       SimpleMailStatusBar.SimpleText := 'sending robot mail .... ';

       CommandLineEMail;

       SimpleMailStatusBar.SimpleText := 'sending robot done .... ';

       Close;

       end;

end;


procedure TSimpleMailForm.CommandLineEMail;
var  MyLines : TStrings;
begin
      MyLines :=TStringList.Create;

       SetSMTPValues(nil);

       AttachFile(msg_attach);

       MyLines.Add(msg_line);

       MyLines.Add('********************************************* ');

       MyLines.Add(' this is an automatic generated e mail ');

       MyLines.Add(' generated with  FREE SOFTWARE simple mail  ' );

       MyLines.Add(' http://sourceforge.net/projects/simpleemail/  ');

       MyLines.Add('********************************************* ');

       SendMail( FActiveEMailUser.UserEMail, msg_to, '','', msg_sub, MyLines );

       MyLines.Free;

       if (Attachment <> nil)  then freeandnil( Attachment );


end;

procedure TSimpleMailForm.SetActiveUser(aUserIndex: Integer);

begin

  FActiveEMailUser := TEMailUser(FEMailUserList.Items[aUserIndex]);

  LoadPostOfficeParameter( FActiveEMailUser.UserSettings);

end;

procedure TSimpleMailForm.LoadPostOfficeParameter(aFile: String);
var
  aIniFile: TIniFile;
begin

  aIniFile := TIniFile.Create(aFile);

  EMailSettingsForm.popedHost.Text := aIniFile.ReadString('POP3', 'Host',
    'pop3.myoffice.org');
  EMailSettingsForm.popedPort.Text := aIniFile.ReadString('POP3',
    'port', '110');
  EMailSettingsForm.popedUser.Text := aIniFile.ReadString('POP3', 'user',
    'error no user name found !');
  EMailSettingsForm.popedPassword.Text := aIniFile.ReadString('POP3',
    'password', 'error no user password found !');

  EMailSettingsForm.smtpedHost.Text := aIniFile.ReadString('smtp', 'Host',
    'pop3.myoffice.org');
  EMailSettingsForm.smtpedUser.Text := aIniFile.ReadString('smtp', 'user',
    'error no user name found !');
  EMailSettingsForm.smtpedPassword.Text := aIniFile.ReadString('smtp',
    'password', 'error no user password found !');

  aIniFile.Free;

end;

procedure TSimpleMailForm.EmailSettingsMenuItemClick(Sender: TObject);
begin

  SimpleMailStatusBar.SimpleText := 'Kontoeinstellungen anzeigen und abändern';

  EMailSettingsForm.EMailUserList := FEMailUserList;

  EMailSettingsForm.Show;
end;

procedure TSimpleMailForm.WriteNewEMail1Click(Sender: TObject);
begin

   SimpleMailStatusBar.SimpleText := 'EMails schreiben';

  WriteEMailForm.Show;
end;

procedure TSimpleMailForm.SetSMTPValues(Sender: TObject);
begin
  // Authentifizierung mit dem smtp server  ---  Server authentication
  MyIndySMTP.AuthType := TIdSMTPAuthenticationType.satDefault;

  // Benutzerdaten für Authentifizierung  --- set Server Username & Password
  MyIndySMTP.UserName := EMailSettingsForm.smtpedUser.Text;
  MyIndySMTP.Password := EMailSettingsForm.smtpedPassword.Text;

  // Server-Daten
  MyIndySMTP.Host := EMailSettingsForm.smtpedHost.Text;
  MyIndySMTP.Port := 25; // confirm this data !
end;

procedure TSimpleMailForm.AttachFile(aAttachmentFilename: String);
begin
  Attachment := TIdAttachmentFile.Create(MyNewIndyMessage.MessageParts,
    aAttachmentFilename);
end;

procedure TSimpleMailForm.SendMail(edfrom, edto, edcc, edBcc, edSubject: string;
  edContent: TStrings);
begin
  MyIndySMTP.Connect;

  try
    MyNewIndyMessage.From.Address := edfrom;
    MyNewIndyMessage.Recipients.EMailAddresses := edto;
    MyNewIndyMessage.CCList.EMailAddresses := edcc;
    MyNewIndyMessage.BccList.EMailAddresses := edBcc;
    MyNewIndyMessage.Subject := edSubject;
    MyNewIndyMessage.Body := edContent;
    MyIndySMTP.Send(MyNewIndyMessage);
  finally
    MyIndySMTP.Disconnect;
  end;
end;



end.