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/*
* Baltisot
* Copyright (C) 1999-2008 Nicolas "Pixel" Noble
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <vector>
#include <TaskMan.h>
#include <MailServer.h>
#include <BRegex.h>
#include <CopyJob.h>
#include <ReadJob.h>
#include <Variables.h>
const timeval timeout = { 8, 0 };
const timeval timeout_sending = { 80, 0 };
class ProcessSMTPRequest : public Task {
public:
ProcessSMTPRequest(const Socket & out) : s(out) {
SetBurst();
}
virtual ~ProcessSMTPRequest() {
}
virtual String GetName() {
return "Processing SMTP request";
}
protected:
virtual int Do() throw (GeneralException);
private:
Socket s;
Buffer b;
Task * c;
String from;
std::vector<String> tos;
};
static Regex single_dot("^\\.$"), dotted_line("^\\..+$");
int ProcessSMTPRequest::Do() {
String l, cmd;
Buffer * out;
if (TaskMan::Event() == Task::EVT_TIMEOUT) {
Suspend(TASK_DONE);
}
RemoveTimeout();
switch (current) {
case 0:
if (!s.IsConnected()) return TASK_DONE;
b << "220 foo.bar Service Ready\r\n";
c = new CopyJob(&b, &s);
WaitFor(c);
current = 1;
WaitFor(timeout);
Suspend(TASK_ON_HOLD);
case 1:
delete c;
b.reset();
c = new ReadJob(&s, &b, any);
WaitFor(c);
current = 2;
WaitFor(timeout);
Suspend(TASK_ON_HOLD);
case 2:
delete c;
current = 1;
b >> l;
l.toupper();
cmd = l.extract(0, 3);
if (cmd == "HELO") {
b << "250 World.\r\n";
} else if (cmd == "MAIL") {
if (l.extract(0, 9) != "MAIL FROM:") {
b << "501 Syntax error.\r\n";
} else {
b << "250 Ok.\r\n";
from = l.extract(10).trim();
}
} else if (cmd == "RCPT") {
if (l.extract(0, 7) != "RCPT TO:") {
b << "501 Syntax error.\r\n";
} else {
b << "250 Ok.\r\n";
tos.push_back(l.extract(8).trim());
}
} else if (cmd == "DATA") {
current = 4;
b << "354 Ok, go ahead.\n";
} else if (cmd == "RSET") {
from = "";
tos.empty();
} else if (cmd == "NOOP") {
b << "250 Zzz.\r\n";
} else if (cmd == "QUIT") {
b << "221 Bye.\r\n";
current = 3;
} else {
b << "502 Unknow command.\r\n";
}
c = new CopyJob(&b, &s);
WaitFor(c);
WaitFor(timeout);
Suspend(TASK_ON_HOLD);
case 3:
delete c;
Suspend(TASK_DONE);
case 4:
delete c;
b.reset();
c = new ReadJob(&s, &b, single_dot);
WaitFor(c);
current = 5;
WaitFor(timeout_sending);
Suspend(TASK_ON_HOLD);
case 5:
delete c;
out = new Buffer();
for (;;) {
b >> l;
if (single_dot.Match(l))
break;
if (dotted_line.Match(l)) {
(*out) << l.extract(1);
} else {
(*out) << l;
}
}
// do something with out
delete out;
b << "250 Ok.\r\n";
c = new CopyJob(&b, &s);
WaitFor(c);
current = 1;
WaitFor(timeout);
Suspend(TASK_ON_HOLD);
}
}
MailServer::MailServer(int _port, const String & _name) throw (GeneralException) : name(_name), localport(_port) {
bool r;
r = Listener.SetLocal("", localport);
if (!r) {
throw GeneralException("Initialisation of the Mini SMTP-Server failed: can't bind");
}
r = Listener.Listen();
if (!r) {
throw GeneralException("Initialisation of the Mini SMTP-Server failed: can't listen");
}
Listener.SetNonBlock();
WaitFor(&Listener, W4_STICKY | W4_READING);
}
MailServer::~MailServer(void) {
Listener.close();
}
int MailServer::Do() throw (GeneralException) {
try {
Socket s = Listener.Accept();
s.SetNonBlock();
new ProcessSMTPRequest(s);
}
catch (GeneralException) {
}
return TASK_ON_HOLD;
}
String MailServer::GetName() {
return String("Mini SMTP-Server '") + name + "'";
}
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