public void actionPerformed(ActionEvent event) {
System.out.println("Sending mail");
/* Check that we have the local mailserver */
if ((serverField.getText()).equals("")) {
System.out.println("Need name of local mailserver!");
return;
}
/* Check that we have the sender and recipient. */
if ((fromField.getText()).equals("")) {
System.out.println("Need sender!");
return;
}
if ((toField.getText()).equals("")) {
System.out.println("Need recipient!");
return;
}
/* Create the message */
Message mailMessage =
new Message(
fromField.getText(),
toField.getText(),
subjectField.getText(),
messageText.getText());
/* Check that the message is valid, i.e., sender and
recipient addresses look ok. */
if (!mailMessage.isValid()) {
return;
}
/* Create the envelope, open the connection and try to send
the message. */
Envelope envelope;
try {
envelope = new Envelope(mailMessage, serverField.getText());
} catch (UnknownHostException e) {
/* If there is an error, do not go further */
return;
}
try {
SMTPConnection connection = new SMTPConnection(envelope);
connection.send(envelope);
connection.close();
} catch (IOException error) {
System.out.println("Sending failed: " + error);
return;
}
System.out.println("Mail sent succesfully!");
}
void start() {
connection.setErrorHandler(
th -> {
log.debug("QUIT failed, ignoring exception", th);
resultHandler.handle(null);
});
connection.write(
"QUIT",
message -> {
log.debug("QUIT result: " + message);
if (!StatusCode.isStatusOk(message)) {
log.warn("quit failed: " + message);
}
resultHandler.handle(null);
});
}