1 files changed, 127 insertions, 0 deletions
diff --git a/examples/network/mail/smtp.cpp b/examples/network/mail/smtp.cpp
new file mode 100644
index 000000000..a0256867b
--- /dev/null
+++ b/examples/network/mail/smtp.cpp
@@ -0,0 +1,127 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for TQt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "smtp.h"
+
+#include <qtextstream.h>
+#include <qsocket.h>
+#include <qdns.h>
+#include <qtimer.h>
+#include <qapplication.h>
+#include <qmessagebox.h>
+#include <qregexp.h>
+
+
+Smtp::Smtp( const TQString &from, const TQString &to,
+	    const TQString &subject,
+	    const TQString &body )
+{
+    socket = new TQSocket( this );
+    connect ( socket, SIGNAL( readyRead() ),
+	      this, SLOT( readyRead() ) );
+    connect ( socket, SIGNAL( connected() ),
+	      this, SLOT( connected() ) );
+
+    mxLookup = new TQDns( to.mid( to.find( '@' )+1 ), TQDns::Mx );
+    connect( mxLookup, SIGNAL(resultsReady()),
+	     this, SLOT(dnsLookupHelper()) );
+
+    message = TQString::fromLatin1( "From: " ) + from +
+	      TQString::fromLatin1( "\nTo: " ) + to +
+	      TQString::fromLatin1( "\nSubject: " ) + subject +
+	      TQString::fromLatin1( "\n\n" ) + body + "\n";
+    message.replace( TQString::fromLatin1( "\n" ),
+		     TQString::fromLatin1( "\r\n" ) );
+    message.replace( TQString::fromLatin1( "\r\n.\r\n" ),
+		     TQString::fromLatin1( "\r\n..\r\n" ) );
+
+    this->from = from;
+    rcpt = to;
+
+    state = Init;
+}
+
+
+Smtp::~Smtp()
+{
+    delete t;
+    delete socket;
+}
+
+
+void Smtp::dnsLookupHelper()
+{
+    TQValueList<TQDns::MailServer> s = mxLookup->mailServers();
+    if ( s.isEmpty() ) {
+	if ( !mxLookup->isWorking() )
+	    emit status( tr( "Error in MX record lookup" ) );
+	return;
+    }
+
+    emit status( tr( "Connecting to %1" ).arg( s.first().name ) );
+
+    socket->connectToHost( s.first().name, 25 );
+    t = new TQTextStream( socket );
+}
+
+
+void Smtp::connected()
+{
+    emit status( tr( "Connected to %1" ).arg( socket->peerName() ) );
+}
+
+void Smtp::readyRead()
+{
+    // SMTP is line-oriented
+    if ( !socket->canReadLine() )
+	return;
+
+    TQString responseLine;
+    do {
+	responseLine = socket->readLine();
+	response += responseLine;
+    } while( socket->canReadLine() && responseLine[3] != ' ' );
+    responseLine.truncate( 3 );
+
+    if ( state == Init && responseLine[0] == '2' ) {
+	// banner was okay, let's go on
+	*t << "HELO there\r\n";
+	state = Mail;
+    } else if ( state == Mail && responseLine[0] == '2' ) {
+	// HELO response was okay (well, it has to be)
+	*t << "MAIL FROM: <" << from << ">\r\n";
+	state = Rcpt;
+    } else if ( state == Rcpt && responseLine[0] == '2' ) {
+	*t << "RCPT TO: <" << rcpt << ">\r\n";
+	state = Data;
+    } else if ( state == Data && responseLine[0] == '2' ) {
+	*t << "DATA\r\n";
+	state = Body;
+    } else if ( state == Body && responseLine[0] == '3' ) {
+	*t << message << ".\r\n";
+	state = Quit;
+    } else if ( state == Quit && responseLine[0] == '2' ) {
+	*t << "TQUIT\r\n";
+	// here, we just close.
+	state = Close;
+	emit status( tr( "Message sent" ) );
+    } else if ( state == Close ) {
+	deleteLater();
+	return;
+    } else {
+	// something broke.
+	TQMessageBox::warning( qApp->activeWindow(),
+			      tr( "TQt Mail Example" ),
+			      tr( "Unexpected reply from SMTP server:\n\n" ) +
+			      response );
+	state = Close;
+    }
+
+    response = "";
+}