TCP/IP(八)
(*@\000000601*)
(*@/// procedure t_nntp.GetArticleNr(index:integer); // ARTICLE *)
procedure t_nntp.GetArticleNr(index:integer);
begin
if not f_logged_in then login;
self.SendCommand(ARTICLE +inttostr(index));
self.response;
f_news.clear;
GetArticleInternally;
end;
(*@\000000401*)
(*@/// procedure t_nntp.SetCurrentArticle(index:integer); // STAT *)
procedure t_nntp.SetCurrentArticle(index:integer);
begin
if not f_logged_in then login;
self.SendCommand(STAT +inttostr(index));
self.response;
end;
(*@\000000401*)
(*@/// procedure t_nntp.GetCurrentArticle; // HEAD and BODY *)
procedure t_nntp.GetCurrentArticle;
begin
if not f_logged_in then login;
f_news.clear;
self.SendCommand(HEAD);
GetArticleInternally;
f_news.add();
self.SendCommand(BODY);
GetArticleInternally;
end;
(*@\000000401*)
(*@/// procedure t_nntp.GetNextArticle; // NEXT *)
procedure t_nntp.GetNextArticle;
begin
if not f_logged_in then login;
self.SendCommand(NEXT);
self.response;
GetCurrentArticle;
end;
(*@\000000401*)
(*@/// procedure t_nntp.GetPreviousArticle; // LAST *)
procedure t_nntp.GetPreviousArticle;
begin
if not f_logged_in then login;
self.SendCommand(LAST);
self.response;
GetCurrentArticle;
end;
(*@\000000401*)(*@/// procedure t_nntp.response; *)
procedure t_nntp.response;
var
s: string;
begin
s:=self.read_line(f_socket);
if assigned(f_tracer) then
f_tracer(s,tt_proto_get);
try
f_status_nr:=strtoint(copy(s,1,3));
except
f_status_nr:=999;
end;
f_status_txt:=copy(s,5,length(s));
if f_status_nr>=400 then
raise EProtocolError.Create(NNTP,f_status_txt,f_status_nr);
end;
(*@\000000D01*)
(*@/// procedure t_nntp.GetArticle(group:string; index:integer); *)
procedure t_nntp.GetArticle(const group:string; index:integer);
begin
self.SendCommand(GROUP +group);
self.response;
GetArticleNr(index);
end;
(*@\000000301*)
(*@/// procedure t_nntp.GetArticleInternally; *)
procedure t_nntp.GetArticleInternally;
var
s: string;
begin
while true do begin
s:=read_line(f_socket);
if s<>. then
f_news.add(s)
else
BREAK;
end;
end;
(*@\000000611*)
(*@\000000D01*){ Mail and News text components }
(*@/// class t_mailnews(tcomponent) *)
(*@/// constructor t_mailnews.Create(Aowner:TComponent); *)
constructor t_mailnews.Create(Aowner:TComponent);
begin
inherited create(AOwner);
f_body:=TStringList.Create;
f_add_header:=TStringList.Create;
f_message:=TStringList.Create;
end;
(*@\000000603*)
(*@/// destructor t_mailnews.Destroy; *)
destructor t_mailnews.Destroy;
begin
f_body.Free;
f_add_header.Free;
f_message.Free;
inherited destroy;
end;
(*@\000000503*)(*@/// procedure t_mailnews.SetBody(Value: TStringList); *)
procedure t_mailnews.SetBody(Value: TStringList);
begin
if value=NIL then
f_body.clear
else
f_body.assign(value);
end;
(*@\000000603*)
(*@/// procedure t_mailnews.SetHeader(Value: TStringList); *)
procedure t_mailnews.SetHeader(Value: TStringList);
begin
if value=NIL then
f_add_header.clear
else
f_add_header.assign(value);
end;
(*@\000000603*)(*@/// procedure t_mailnews.action; *)
procedure t_mailnews.action;
begin
f_message.insert(0,From: +f_from); (* normally the first *)
if f_sender<> then f_message.add(Sender: +f_sender);
f_message.insert(1,Message-ID: <+inttostr(round((now-encodedate(1970,1,1))*86400))+@
+my_hostname+>);
f_message.insert(2,Date: +internet_date(now));
f_message.insert(3,Subject: +f_subject);
if f_references<> then f_message.add(References: +f_references);
if f_replyto<> then f_message.add(Reply-To: +f_replyto);
f_message.addstrings(f_add_header);
f_message.add(); (* An empty line to separate header from body *)
f_message.addstrings(f_body);
end;
(*@\000000B01*)
(*@\000000701*)
(*@/// class t_mail(t_mailnews) *)
(*@/// constructor t_mail.Create(Aowner:TComponent); *)
constructor t_mail.Create(Aowner:TComponent);
begin
inherited create(AOwner);
f_smtp:=NIL;
f_receipts:=TStringList.Create;
f_cc:=TStringList.Create;
f_bcc:=TStringList.Create;
end;
(*@\000000601*)
(*@/// destructor t_mail.Destroy; *)
destructor t_mail.Destroy;
begin
f_receipts.Free;
f_cc.free;
f_bcc.free;
inherited destroy;
end;
(*@\000000601*)(*@/// procedure t_mail.SetRecipients(Value: TStringList); *)
procedure t_mail.SetRecipients(Value: TStringList);
begin
if value=NIL then
f_receipts.clear
else
f_receipts.assign(value);
end;
(*@\000000603*)
(*@/// procedure t_mail.SetCC(Value: TStringList); *)
procedure t_mail.SetCC(Value: TStringList);
begin
if value=NIL then
f_cc.clear
else
f_cc.assign(value);
end;
(*@\000000609*)
(*@/// procedure t_mail.SetBCC(Value: TStringList); *)
procedure t_mail.SetBCC(Value: TStringList);
begin
if value=NIL then
f_bcc.clear
else
f_bcc.assign(value);
end;
(*@\000000601*)(*@/// procedure t_mail.action; *)
procedure t_mail.action;
var
i: integer;
clear_sender: boolean;
begin
if (f_smtp=NIL) or (f_receipts=NIL) or (f_receipts.count=0)
or (f_from=) then EXIT;
clear_sender:=(f_smtp.Sender=);
if clear_sender then begin
if f_sender<> then
f_smtp.sender:=f_sender
else
f_smtp.sender:=f_from;
end;if f_disclose_receipts then
f_message.add(To: disclosed recipients list)
else
for i:=0 to f_receipts.
补充：软件开发 , Delphi ,
