TCP/IP(九)
(*@\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:=NIL;
f_newsgroups:=TStringList.Create;
end;
(*@\000000501*)
(*@/// destructor t_news.Destroy; *)
destructor t_news.Destroy;
begin
f_newsgroups.Free;
inherited destroy;
end;
(*@\00000030F*)(*@/// 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;
(*@\000000603*)(*@/// 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;
(*@\*)
(*@\000000401*)(*@/// 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;
(*@\000000617*)
(*@/// 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;
(*@\000000701*)
(*@/// 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;
(*@\00000041A*)
(*@\*)
(*@/// 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;
(*@\00000040F*)
(*@/// 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;
(*@\000000701*)(*@/// 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;
(*@\00000060C*)
(*@/// 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;
(*@\000000301*)
(*@/// 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;
(*@\00000031E*)
(*@/// function t_mime.GetNumberOfAttachments: integer; *)
function t_mime.GetNumberOfAttachments: integer;
begin
result:=f_attachment.count;
end;
(*@\000000317*)(*@/// 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
补充：软件开发 , Delphi ,
