Email notification on download completion

src/smtp.cpp

@@ -0,0 +1,123 @@
+/****************************************************************************
+** $Id: qt/smtp.h   3.3.6   edited Aug 31 2005 $
+**
+** Copyright (C) 1992-2005 Trolltech AS.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+#include "smtp.h"
+#include "preferences.h"
+
+#include <QTextStream>
+#include <QTcpSocket>
+
+Smtp::Smtp(const QString &from, const QString &to, const QString &subject, const QString &body) {
+  socket = new QTcpSocket(this);
+
+  connect( socket, SIGNAL( readyRead() ), this, SLOT( readyRead() ) );
+  message = "To: " + to + "\n";
+  message.append("From: " + from + "\n");
+  message.append("Subject: " + subject + "\n");
+  message.append(body);
+  message.replace( QString::fromLatin1( "\n" ), QString::fromLatin1( "\r\n" ) );
+  message.replace( QString::fromLatin1( "\r\n.\r\n" ),
+                   QString::fromLatin1( "\r\n..\r\n" ) );
+  this->from = from;
+  rcpt = to;
+  state = Init;
+  socket->connectToHost(Preferences::getMailNotificationSMTP(), 25);
+  if(socket->waitForConnected ( 30000 )) {
+    qDebug("connected");
+  } else {
+    t = 0;
+    deleteLater();
+  }
+  t = new QTextStream(socket);
+}
+
+Smtp::~Smtp()
+{
+  if(t)
+    delete t;
+  delete socket;
+}
+
+void Smtp::readyRead()
+{
+
+  qDebug() << "readyRead";
+  // SMTP is line-oriented
+
+  QString responseLine;
+  do
+  {
+    responseLine = socket->readLine();
+    response += responseLine;
+  }
+  while ( socket->canReadLine() && responseLine[3] != ' ' );
+
+  qDebug("Response line: %s", qPrintable(response));
+
+  responseLine.truncate( 3 );
+
+
+  if ( state == Init && responseLine[0] == '2' )
+  {
+    // banner was okay, let's go on
+
+    *t << "HELO there\r\n";
+    t->flush();
+
+    state = Mail;
+  }
+  else if ( state == Mail && responseLine[0] == '2' )
+  {
+    // HELO response was okay (well, it has to be)
+
+    *t << "MAIL FROM: " << from << "\r\n";
+    t->flush();
+    state = Rcpt;
+  }
+  else if ( state == Rcpt && responseLine[0] == '2' )
+  {
+
+    *t << "RCPT TO: " << rcpt << "\r\n"; //r
+    t->flush();
+    state = Data;
+  }
+  else if ( state == Data && responseLine[0] == '2' )
+  {
+
+    *t << "DATA\r\n";
+    t->flush();
+    state = Body;
+  }
+  else if ( state == Body && responseLine[0] == '3' )
+  {
+
+    *t << message << "\r\n.\r\n";
+    t->flush();
+    state = Quit;
+  }
+  else if(state == Quit && responseLine[0] == '2')
+  {
+
+    *t << "QUIT\r\n";
+    t->flush();
+    // here, we just close.
+    state = Close;
+  }
+  else if ( state == Close )
+  {
+    deleteLater();
+    return;
+  }
+  else
+  {
+    // something broke.
+    state = Close;
+  }
+  response = "";
+}