Example usage for org.apache.commons.net.smtp AuthenticatingSMTPClient sendMessageData

Introduction

In this page you can find the example usage for org.apache.commons.net.smtp AuthenticatingSMTPClient sendMessageData.

Prototype

public Writer sendMessageData() throws IOException 

Source Link

Document

Send the SMTP DATA command in preparation to send an email message.

Usage

From source file:ca.rmen.android.networkmonitor.app.email.Emailer.java

/**
 * Sends an e-mail in UTF-8 encoding.//from  ww  w  .j  av a 2s.c o  m
 *
 * @param protocol    this has been tested with "TLS", "SSL", and null.
 * @param attachments optional attachments to include in the mail.
 * @param debug       if true, details about the smtp commands will be logged to stdout.
 */
static void sendEmail(String protocol, String server, int port, String user, String password, String from,
        String[] recipients, String subject, String body, Set<File> attachments, boolean debug)
        throws Exception {

    // Set up the mail connectivity
    final AuthenticatingSMTPClient client;
    if (protocol == null)
        client = new AuthenticatingSMTPClient();
    else
        client = new AuthenticatingSMTPClient(protocol);

    if (debug)
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

    client.setDefaultTimeout(SMTP_TIMEOUT_MS);
    client.setCharset(Charset.forName(ENCODING));
    client.connect(server, port);
    checkReply(client);
    client.helo("[" + client.getLocalAddress().getHostAddress() + "]");
    checkReply(client);
    if ("TLS".equals(protocol)) {
        if (!client.execTLS()) {
            checkReply(client);
            throw new RuntimeException("Could not start tls");
        }
    }
    client.auth(AuthenticatingSMTPClient.AUTH_METHOD.LOGIN, user, password);
    checkReply(client);

    // Set up the mail participants
    client.setSender(from);
    checkReply(client);
    for (String recipient : recipients) {
        client.addRecipient(recipient);
        checkReply(client);
    }

    // Set up the mail content
    Writer writer = client.sendMessageData();
    SimpleSMTPHeader header = new SimpleSMTPHeader(from, recipients[0], subject);
    for (int i = 1; i < recipients.length; i++)
        header.addCC(recipients[i]);

    // Just plain text mail: no attachments
    if (attachments == null || attachments.isEmpty()) {
        header.addHeaderField("Content-Type", "text/plain; charset=" + ENCODING);
        writer.write(header.toString());
        writer.write(body);
    }
    // Mail with attachments
    else {
        String boundary = UUID.randomUUID().toString().replaceAll("-", "").substring(0, 28);
        header.addHeaderField("Content-Type", "multipart/mixed; boundary=" + boundary);
        writer.write(header.toString());

        // Write the main text message
        writer.write("--" + boundary + "\n");
        writer.write("Content-Type: text/plain; charset=" + ENCODING + "\n\n");
        writer.write(body);
        writer.write("\n");

        // Write the attachments
        appendAttachments(writer, boundary, attachments);
        writer.write("--" + boundary + "--\n\n");
    }

    writer.close();
    if (!client.completePendingCommand()) {
        throw new RuntimeException("Could not send mail");
    }
    client.logout();
    client.disconnect();
}

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From source file:com.ironiacorp.email.CommonsNetEmailDispatcher.java

@Override
public void sendEmails(Email... emails) {
    AuthenticatingSMTPClient client = null;
    boolean result = false;
    int port = connectionType.port;
    if (serverPort != 0) {
        port = serverPort;//w  w w .  ja  va  2s.co m
    }

    try {
        client = new AuthenticatingSMTPClient();

        client.connect(serverName, port);
        if (connectionType == EmailServerConnectionType.SSL
                || connectionType == EmailServerConnectionType.TLS) {
            result = client.execTLS();
            if (result == false) {
                throw new IllegalArgumentException("Cannot start secure connection");
            }
        }

        if (authenticationRequired) {
            result = client.auth(AUTH_METHOD.PLAIN, username, password);
            if (result == false) {
                throw new IllegalArgumentException("Incorrect username or password");
            }
        }

        // After connection attempt, you should check the reply code to verify success.
        int reply = client.getReplyCode();
        if (!SMTPReply.isPositiveCompletion(reply)) {
            client.disconnect();
        }

        for (Email email : emails) {
            SimpleSMTPHeader header;
            Iterator<Recipient> i = email.getRecipients().iterator();
            Writer writer = client.sendMessageData();
            String to = null;

            while (i.hasNext()) {
                Recipient recipient = i.next();
                if (to == null && email.getVisibility(recipient) == Visibility.TO) {
                    to = recipient.getEmail();
                } else {
                    client.addRecipient(recipient.getEmail());
                }
            }

            header = new SimpleSMTPHeader(email.getSender().getEmail(), null, email.getSubject());

            writer.write(header.toString());
            result = client.completePendingCommand();
            if (result == false) {
                throw new IllegalArgumentException("Could not send the email");
            }
            client.reset();
        }
    } catch (Exception e) {
        throw new UnsupportedOperationException("Could not send the email", e);
    } finally {
        if (client != null && client.isConnected()) {
            try {
                client.disconnect();
            } catch (IOException e) {
            }
        }

    }
}

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