TCP/IP(九)

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TCP/IP(九)

来源: 作者: 时间:2016-01-23 10:15 【

(*@\000000B01*)(*@\000000801*)(*@/// class t_news(t_mailnews) *)(*@/// constructor t_news.Create(Aowner:TComponent); *)constructor t_news.Create(Aowner:TComponent);begin inherited create(AOwner); f_nntp

(*@\\0000000B01*)
(*@\\0000000801*)
(*@/// class t_news(t_mailnews) *)
(*@/// constructor t_news.Create(Aowner:TComponent); *)
constructor t_news.Create(Aowner:TComponent);
begin
  inherited create(AOwner);
  f_nntp:=NIL;
  f_newsgroups:=TStringList.Create;
  end;
(*@\\0000000501*)
(*@/// destructor t_news.Destroy; *)
destructor t_news.Destroy;
begin
  f_newsgroups.Free;
  inherited destroy;
  end;
(*@\\000000030F*)

(*@/// procedure t_news.SetNewsgroups(Value: TStringList); *)
procedure t_news.SetNewsgroups(Value: TStringList);
begin
  if value=NIL then
    f_newsgroups.clear
  else
    f_newsgroups.assign(value);
  end;
(*@\\0000000603*)

(*@/// procedure t_news.action; *)
procedure t_news.action;
var
  s:string;
  i:integer;
begin
  if (f_nntp=NIL) or (f_newsgroups=NIL) or (f_newsgroups.count=0)
    or (f_newsgroups.count>10)  (* no spamming, please *)
    or (f_from=) then  EXIT;
  s:=Newsgroups: ;
  i:=0;
  while true do begin
    s:=s+f_newsgroups.strings[i];
    inc(i);
    if i<f_newsgroups.count then
      s:=s+,;
    f_message.add(s);
    if i>=f_newsgroups.count then  BREAK;
    s:=  ;
    end;
  if f_organization<> then  f_message.add(f_organization);
  inherited action;
  f_nntp.login;
  f_nntp.news:=f_message;
  f_nntp.PostArticle;
  f_nntp.logout;
  f_message.clear;
  end;
(*@\*)
(*@\\0000000401*)

(*@/// class t_attachment(TObject) *)
(*@/// constructor t_attachment.Create; *)
constructor t_attachment.Create;
begin
  inherited create;
  f_text:=TStringlist.create;
  f_data:=TMemoryStream.Create;
  f_encoding:=ec_none;
  end;
(*@\\0000000617*)
(*@/// destructor t_attachment.Destroy; *)
destructor t_attachment.Destroy;
begin
  f_text.free;
  f_data.free;
  inherited destroy;
  end;
(*@\*)

(*@/// procedure t_attachment.SetText(value:TStringList); *)
procedure t_attachment.SetText(value:TStringList);
begin
  if value=NIL then
    f_text.clear
  else begin
    f_text.assign(value);
    f_text.SaveToStream(TMemoryStream(f_data));
    end;
  end;
(*@\\0000000701*)
(*@/// procedure t_attachment.SetData(value:TStream); *)
procedure t_attachment.SetData(value:TStream);
begin
  if value=NIL then
    TMemoryStream(f_data).clear
  else begin
    f_text.clear;
    TMemoryStream(f_data).LoadFromStream(value);
    end;
  end;
(*@\\000000041A*)
(*@\*)
(*@/// class t_mime(TComponent) *)
(*@/// constructor t_mime.Create(Aowner:TComponent); *)
constructor t_mime.Create(Aowner:TComponent);
begin
  inherited Create(AOwner);
  f_attachment:=TList.Create;
  end;
(*@\\000000040F*)
(*@/// destructor t_mime.Destroy; *)
destructor t_mime.Destroy;
begin
  if f_attachment<>NIL then begin
    try
      RemoveAllAttachments;
    except
      end;
    end;
  f_attachment.free;
  inherited Destroy;
  end;
(*@\\0000000701*)

(*@/// function t_mime.AttachFile(const filename:string):integer; *)
function t_mime.AttachFile(const filename:string):integer;
var
  t: t_attachment;
  data: TFileStream;
begin
  t:=t_attachment.Create;
  t.kind:=application/octet-stream;
  t.encoding:=ec_base64;
  data:=NIL;
  try
    data:=TFileStream.Create(filename,fmOpenRead);
    t.data:=data;
    data.free;
  except
    data.free;
    t.free;
    raise;
    end;
  t.disposition:=attachment; filename="+filename_of(filename)+";
  result:=f_attachment.add(t);
  end;
(*@\*)
(*@/// function t_mime.AttachText(text: TStringList):integer; *)
function t_mime.AttachText(text: TStringList):integer;
var
  t: t_attachment;
begin
  t:=t_attachment.Create;
  t.kind:=text/plain;
  t.encoding:=ec_quotedprintable;
  t.text:=text;
  t.disposition:=;
  result:=f_attachment.add(t);
  end;
(*@\\000000060C*)
(*@/// procedure t_mime.RemoveAttachment(index: integer); *)
procedure t_mime.RemoveAttachment(index: integer);
begin
  if (index>=0) and (f_attachment.count>index) then begin
    TObject(f_attachment[index]).free;
    f_attachment.delete(index);
    end;
  end;
(*@\\0000000301*)
(*@/// procedure t_mime.RemoveAllAttachments; *)
procedure t_mime.RemoveAllAttachments;
begin
  while f_attachment.count>0 do begin
    TObject(f_attachment[0]).free;
    f_attachment.delete(0);
    end;
  end;
(*@\\000000031E*)
(*@/// function t_mime.GetNumberOfAttachments: integer; *)
function t_mime.GetNumberOfAttachments: integer;
begin
  result:=f_attachment.count;
  end;
(*@\\0000000317*)

(*@/// procedure t_mime.action; *)
procedure t_mime.action;
var
  data, encoded: TStringList;
  i,j,p: integer;
  attach: t_attachment;
begin
  if f_mail=NIL then EXIT;
  boundary:=inttostr(round((now-encodedate(1970,1,1))*86400))+inttohex(my_ip_address,8)+==;
  data:=NIL;
  p:=-1;
  try
    data:=TStringList.Create;
    f_mail.Header.add(MIME-Version: 1.0);
    f_mail.Header.add(Content-Type: multipart/mixed; boundary="+boundary+");
    f_mail.Header.add(Content-Transfer-Encoding: 7bit);
    data.assign(f_mail.Body);
    if data.count>0 then begin
      f_mail.Body.clear;
      p:=AttachText(data);
      end;
    for i:=0 to f_attachment.count-1 do begin
      attach:=t_attachment(f_attachment[i]);
      f_mail.Body.Add();
      f_mail.Body.Add(--+boundary);
      f_mail.Body.Add(Content-Type: +attach.kind);
      if attach.disposition<> then
        f_mail.Body.Add(Content-Disposition: +attach.disposition);
      case attach.encoding of
        ec_base64:          f_mail.Body.Add(Content-Transfer-Encoding: base64);
        ec_quotedprintable: f_mail.Body.Add(Content-Transfer-Encoding: quoted-printable);
        end;
      f_mail.Body.Add();
      case attach.encoding of
(*@///         ec_base64: *)
ec_base64: begin
  encoded:=encode_base64(attach.data);
  f_mail.Body.AddSt

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