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(*@\\\0000000601*)
(*@/// 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;
(*@\\\0000000401*)
(*@/// 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;
(*@\\\0000000401*)
(*@/// 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;
(*@\\\0000000401*)
(*@/// procedure t_nntp.GetNextArticle; // NEXT *)
procedure t_nntp.GetNextArticle;
begin
if not f_logged_in then login;
self.SendCommand(''''NEXT'''');
self.response;
GetCurrentArticle;
end;
(*@\\\0000000401*)
(*@/// procedure t_nntp.GetPreviousArticle; // LAST *)
procedure t_nntp.GetPreviousArticle;
begin
if not f_logged_in then login;
self.SendCommand(''''LAST'''');
self.response;
GetCurrentArticle;
end;
(*@\\\0000000401*)
(*@/// 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;
(*@\\\0000000D01*)
(*@/// 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;
(*@\\\0000000301*)
(*@/// 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;
(*@\\\0000000611*)
(*@\\\0000000D01*)
{ 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;
(*@\\\0000000603*)
(*@/// destructor t_mailnews.Destroy; *)
destructor t_mailnews.Destroy;
begin
f_body.Free;
f_add_header.Free;
f_message.Free;
inherited destroy;
end;
(*@\\\0000000503*)
(*@/// 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;
(*@\\\0000000603*)
(*@/// 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;
(*@\\\0000000603*)
(*@/// 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;
(*@\\\0000000B01*)
(*@\\\0000000701*)
(*@/// 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;
(*@\\\0000000601*)
(*@/// destructor t_mail.Destroy; *)
destructor t_mail.Destroy;
begin
f_receipts.Free;
f_cc.free;
f_bcc.free;
inherited destroy;
end;
(*@\\\0000000601*)
(*@/// 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;
(*@\\\0000000603*)
(*@/// 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;
(*@\\\0000000609*)
(*@/// 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;
(*@\\\0000000601*)
(*@/// 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.count-1 do begin
f_message.add(''''To: ''''+f_receipts.strings[i]);
end;
f_smtp.Recipients:=f_receipts;
for i:=0 to f_cc.count-1 do begin
f_message.add(''''CC: ''''+f_cc.strings[i]);
f_smtp.Recipients.add(f_cc.strings[i]);
end;
for i:=0 to f_bcc.count-1 do begin
f_smtp.Recipients.add(f_bcc.strings[i]);
end;
inherited action;
f_smtp.message:=f_message;
f_smtp.action;
f_message.clear;
if clear_sender then
f_smtp.sender:='''''''';
end;
[ORACLE]ORACLE SQL性能优化系列 (八)
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