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Posted to scm@geronimo.apache.org by ri...@apache.org on 2008/07/03 12:37:56 UTC
svn commit: r673649 [1/3] - in
/geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail:
transport/nntp/ transport/smtp/ util/
Author: rickmcguire
Date: Thu Jul 3 03:37:56 2008
New Revision: 673649
URL: http://svn.apache.org/viewvc?rev=673649&view=rev
Log:
GERONIMO-4174 Restructure the SMTPTransport class to use the comment MailConnection class.
Added:
geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java (with props)
Modified:
geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPConnection.java
geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPTransport.java
geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPReply.java
geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPTransport.java
geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/util/MailConnection.java
Modified: geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPConnection.java
URL: http://svn.apache.org/viewvc/geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPConnection.java?rev=673649&r1=673648&r2=673649&view=diff
==============================================================================
--- geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPConnection.java (original)
+++ geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPConnection.java Thu Jul 3 03:37:56 2008
@@ -50,9 +50,6 @@
/**
* Simple implementation of NNTP transport. Just does plain RFC977-ish delivery.
- * <p/> There is no way to indicate failure for a given recipient (it's possible
- * to have a recipient address rejected). The sun impl throws exceptions even if
- * others successful), but maybe we do a different way... <p/>
*
* @version $Rev$ $Date$
*/
@@ -79,9 +76,6 @@
// the last response line received from the server.
protected NNTPReply lastServerResponse = null;
- // map of server extension arguments
- protected HashMap serverExtensionArgs;
-
// the welcome string from the server.
protected String welcomeString = null;
@@ -318,8 +312,8 @@
* supported.
*/
public String extensionParameter(String name) {
- if (serverExtensionArgs != null) {
- return (String) serverExtensionArgs.get(name);
+ if (capabilities != null) {
+ return (String) capabilities.get(name);
}
return null;
}
Modified: geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPTransport.java
URL: http://svn.apache.org/viewvc/geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPTransport.java?rev=673649&r1=673648&r2=673649&view=diff
==============================================================================
--- geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPTransport.java (original)
+++ geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/nntp/NNTPTransport.java Thu Jul 3 03:37:56 2008
@@ -254,7 +254,7 @@
public void close() throws MessagingException {
// This is done to ensure proper event notification.
super.close();
+ // NB: We reuse the connection if asked to reconnect
connection.close();
- connection = null;
}
}
Added: geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java
URL: http://svn.apache.org/viewvc/geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java?rev=673649&view=auto
==============================================================================
--- geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java (added)
+++ geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java Thu Jul 3 03:37:56 2008
@@ -0,0 +1,1345 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.geronimo.javamail.transport.smtp;
+
+import java.io.BufferedReader;
+import java.io.BufferedOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.io.PrintWriter;
+import java.io.UnsupportedEncodingException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.net.InetAddress;
+import java.net.Socket;
+import java.net.SocketException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.StringTokenizer;
+
+import javax.mail.Address;
+import javax.mail.AuthenticationFailedException;
+import javax.mail.Message;
+import javax.mail.MessagingException;
+import javax.mail.internet.InternetAddress;
+import javax.mail.internet.MimeMessage;
+import javax.mail.internet.MimeMultipart;
+import javax.mail.internet.MimePart;
+import javax.mail.Session;
+
+import org.apache.geronimo.javamail.authentication.ClientAuthenticator;
+import org.apache.geronimo.javamail.authentication.AuthenticatorFactory;
+import org.apache.geronimo.javamail.util.CountingOutputStream;
+import org.apache.geronimo.javamail.util.MailConnection;
+import org.apache.geronimo.javamail.util.MIMEOutputStream;
+import org.apache.geronimo.javamail.util.ProtocolProperties;
+import org.apache.geronimo.mail.util.Base64;
+import org.apache.geronimo.mail.util.XText;
+
+/**
+ * Simple implementation of SMTP transport. Just does plain RFC977-ish delivery.
+ *
+ * @version $Rev$ $Date$
+ */
+public class SMTPConnection extends MailConnection {
+ protected static final String MAIL_SMTP_QUITWAIT = "quitwait";
+ protected static final String MAIL_SMTP_EXTENSION = "mailextension";
+ protected static final String MAIL_SMTP_EHLO = "ehlo";
+ protected static final String MAIL_SMTP_ALLOW8BITMIME = "allow8bitmime";
+ protected static final String MAIL_SMTP_REPORT_SUCCESS = "reportsuccess";
+ protected static final String MAIL_SMTP_STARTTLS_ENABLE = "starttls.enable";
+ protected static final String MAIL_SMTP_AUTH = "auth";
+ protected static final String MAIL_SMTP_FROM = "from";
+ protected static final String MAIL_SMTP_DSN_RET = "dsn.ret";
+ protected static final String MAIL_SMTP_SUBMITTER = "submitter";
+
+ /**
+ * property keys for protocol properties.
+ */
+ protected static final int DEFAULT_NNTP_PORT = 119;
+
+ // the last response line received from the server.
+ protected SMTPReply lastServerResponse = null;
+
+ // input reader wrapped around the socket input stream
+ protected BufferedReader reader;
+ // output writer wrapped around the socket output stream.
+ protected PrintWriter writer;
+
+ // do we report success after completion of each mail send.
+ protected boolean reportSuccess;
+ // does the server support transport level security?
+ protected boolean serverTLS = false;
+ // is TLS enabled on our part?
+ protected boolean useTLS = false;
+ // should we use 8BITMIME encoding if supported by the server?
+ protected boolean use8bit = false;
+
+ /**
+ * Normal constructor for an SMTPConnection() object.
+ *
+ * @param props The property bundle for this protocol instance.
+ */
+ public SMTPConnection(ProtocolProperties props) {
+ super(props);
+
+ // check to see if we need to throw an exception after a send operation.
+ reportSuccess = props.getBooleanProperty(MAIL_SMTP_REPORT_SUCCESS, false);
+ // and also check for TLS enablement.
+ useTLS = props.getBooleanProperty(MAIL_SMTP_STARTTLS_ENABLE, false);
+ // and also check for 8bitmime support
+ use8bit = props.getBooleanProperty(MAIL_SMTP_ALLOW8BITMIME, false);
+ }
+
+
+ /**
+ * Connect to the server and do the initial handshaking.
+ *
+ * @param host The target host name.
+ * @param port The target port
+ * @param username The connection username (can be null)
+ * @param password The authentication password (can be null).
+ *
+ * @return true if we were able to obtain a connection and
+ * authenticate.
+ * @exception MessagingException
+ */
+ public boolean protocolConnect(String host, int port, String username, String password) throws MessagingException {
+
+ // now check to see if we need to authenticate. If we need this, then
+ // we must have a username and
+ // password specified. Failing this may result in a user prompt to
+ // collect the information.
+ boolean mustAuthenticate = props.getBooleanProperty(MAIL_SMTP_AUTH, false);
+
+ // if we need to authenticate, and we don't have both a userid and
+ // password, then we fail this
+ // immediately. The Service.connect() method will try to obtain the user
+ // information and retry the
+ // connection one time.
+ if (mustAuthenticate && (username == null || password == null)) {
+ debugOut("Failing connection for missing authentication information");
+ return false;
+ }
+
+ super.protocolConnect(host, port, username, password);
+
+ try {
+ // create socket and connect to server.
+ getConnection();
+
+ // receive welcoming message
+ if (!getWelcome()) {
+ debugOut("Error getting welcome message");
+ throw new MessagingException("Error in getting welcome msg");
+ }
+
+ // say hello
+ if (!sendHandshake()) {
+ debugOut("Error getting processing handshake message");
+ throw new MessagingException("Error in saying EHLO to server");
+ }
+
+ // authenticate with the server, if necessary
+ if (!processAuthentication()) {
+ debugOut("User authentication failure");
+ throw new AuthenticationFailedException("Error authenticating with server");
+ }
+ } catch (IOException e) {
+ debugOut("I/O exception establishing connection", e);
+ throw new MessagingException("Connection error", e);
+ }
+ debugOut("Successful connection");
+ return true;
+ }
+
+
+ /**
+ * Close the connection. On completion, we'll be disconnected from the
+ * server and unable to send more data.
+ *
+ * @exception MessagingException
+ */
+ public void close() throws MessagingException {
+ // if we're already closed, get outta here.
+ if (socket == null) {
+ return;
+ }
+ try {
+ // say goodbye
+ sendQuit();
+ } finally {
+ // and close up the connection. We do this in a finally block to
+ // make sure the connection
+ // is shut down even if quit gets an error.
+ closeServerConnection();
+ }
+ }
+
+ public String toString() {
+ return "SMTPConnection host: " + serverHost + " port: " + serverPort;
+ }
+
+
+ /**
+ * Set the sender for this mail.
+ *
+ * @param message
+ * The message we're sending.
+ *
+ * @return True if the command was accepted, false otherwise.
+ * @exception MessagingException
+ */
+ protected boolean sendMailFrom(Message message) throws MessagingException {
+
+ // need to sort the from value out from a variety of sources.
+ String from = null;
+
+ // first potential source is from the message itself, if it's an
+ // instance of SMTPMessage.
+ if (message instanceof SMTPMessage) {
+ from = ((SMTPMessage) message).getEnvelopeFrom();
+ }
+
+ // if not available from the message, check the protocol property next
+ if (from == null || from.length() == 0) {
+ // the from value can be set explicitly as a property
+ from = props.getProperty(MAIL_SMTP_FROM);
+ }
+
+ // if not there, see if we have something in the message header.
+ if (from == null || from.length() == 0) {
+ Address[] fromAddresses = message.getFrom();
+
+ // if we have some addresses in the header, then take the first one
+ // as our From: address
+ if (fromAddresses != null && fromAddresses.length > 0) {
+ from = ((InternetAddress) fromAddresses[0]).getAddress();
+ }
+ // get what the InternetAddress class believes to be the local
+ // address.
+ else {
+ InternetAddress local = InternetAddress.getLocalAddress(session);
+ if (local != null) {
+ from = local.getAddress();
+ }
+ }
+ }
+
+ if (from == null || from.length() == 0) {
+ throw new MessagingException("no FROM address");
+ }
+
+ StringBuffer command = new StringBuffer();
+
+ // start building up the command
+ command.append("MAIL FROM: ");
+ command.append(fixEmailAddress(from));
+
+ // If the server supports the 8BITMIME extension, we might need to change the
+ // transfer encoding for the content to allow for direct transmission of the
+ // 8-bit codes.
+ if (supportsExtension("8BITMIME")) {
+ // we only do this if the capability was enabled via a property option or
+ // by explicitly setting the property on the message object.
+ if (use8bit || (message instanceof SMTPMessage && ((SMTPMessage)message).getAllow8bitMIME())) {
+ // make sure we add the BODY= option to the FROM message.
+ command.append(" BODY=8BITMIME");
+
+ // go check the content and see if the can convert the transfer encoding to
+ // allow direct 8-bit transmission.
+ if (convertTransferEncoding((MimeMessage)message)) {
+ // if we changed the encoding on any of the parts, then we
+ // need to save the message again
+ message.saveChanges();
+ }
+ }
+ }
+
+ // some servers ask for a size estimate on the initial send
+ if (supportsExtension("SIZE")) {
+ int estimate = getSizeEstimate(message);
+ if (estimate > 0) {
+ command.append(" SIZE=" + estimate);
+ }
+ }
+
+ // does this server support Delivery Status Notification? Then we may
+ // need to add some extra to the command.
+ if (supportsExtension("DSN")) {
+ String returnNotification = null;
+
+ // the return notification stuff might be set as value on the
+ // message object itself.
+ if (message instanceof SMTPMessage) {
+ // we need to convert the option into a string value.
+ switch (((SMTPMessage) message).getReturnOption()) {
+ case SMTPMessage.RETURN_FULL:
+ returnNotification = "FULL";
+ break;
+
+ case SMTPMessage.RETURN_HDRS:
+ returnNotification = "HDRS";
+ break;
+ }
+ }
+
+ // if not obtained from the message object, it can also be set as a
+ // property.
+ if (returnNotification == null) {
+ // the DSN value is set by yet another property.
+ returnNotification = props.getProperty(MAIL_SMTP_DSN_RET);
+ }
+
+ // if we have a target, add the notification stuff to our FROM
+ // command.
+ if (returnNotification != null) {
+ command.append(" RET=");
+ command.append(returnNotification);
+ }
+ }
+
+ // if this server supports AUTH and we have submitter information, then
+ // we also add the
+ // "AUTH=" keyword to the MAIL FROM command (see RFC 2554).
+
+ if (supportsExtension("AUTH")) {
+ String submitter = null;
+
+ // another option that can be specified on the message object.
+ if (message instanceof SMTPMessage) {
+ submitter = ((SMTPMessage) message).getSubmitter();
+ }
+ // if not part of the object, try for a propery version.
+ if (submitter == null) {
+ // we only send the extra keyword is a submitter is specified.
+ submitter = props.getProperty(MAIL_SMTP_SUBMITTER);
+ }
+ // we have one...add the keyword, plus the submitter info in xtext
+ // format (defined by RFC 1891).
+ if (submitter != null) {
+ command.append(" AUTH=");
+ try {
+ // add this encoded
+ command.append(new String(XText.encode(submitter.getBytes("US-ASCII"))));
+ } catch (UnsupportedEncodingException e) {
+ throw new MessagingException("Invalid submitter value " + submitter);
+ }
+ }
+ }
+
+ String extension = null;
+
+ // now see if we need to add any additional extension info to this
+ // command. The extension is not
+ // checked for validity. That's the reponsibility of the caller.
+ if (message instanceof SMTPMessage) {
+ extension = ((SMTPMessage) message).getMailExtension();
+ }
+ // this can come either from the object or from a set property.
+ if (extension == null) {
+ extension = props.getProperty(MAIL_SMTP_EXTENSION);
+ }
+
+ // have something real to add?
+ if (extension != null && extension.length() != 0) {
+ // tack this on the end with a blank delimiter.
+ command.append(' ');
+ command.append(extension);
+ }
+
+ // and finally send the command
+ SMTPReply line = sendCommand(command.toString());
+
+ // 250 response indicates success.
+ return line.getCode() == SMTPReply.COMMAND_ACCEPTED;
+ }
+
+
+ /**
+ * Check to see if a MIME body part can have its
+ * encoding changed from quoted-printable or base64
+ * encoding to 8bit encoding. In order for this
+ * to work, it must follow the rules laid out in
+ * RFC 2045. To qualify for conversion, the text
+ * must be:
+ *
+ * 1) No more than 998 bytes long
+ * 2) All lines are terminated with CRLF sequences
+ * 3) CR and LF characters only occur in properly
+ * formed line separators
+ * 4) No null characters are allowed.
+ *
+ * The conversion will only be applied to text
+ * elements, and this will recurse through the
+ * different elements of MultiPart content.
+ *
+ * @param bodyPart The bodyPart to convert. Initially, this will be
+ * the message itself.
+ *
+ * @return true if any conversion was performed, false if
+ * nothing was converted.
+ */
+ protected boolean convertTransferEncoding(MimePart bodyPart)
+ {
+ boolean converted = false;
+ try {
+ // if this is a multipart element, apply the conversion rules
+ // to each of the parts.
+ if (bodyPart.isMimeType("multipart/")) {
+ MimeMultipart parts = (MimeMultipart)bodyPart.getContent();
+ for (int i = 0; i < parts.getCount(); i++) {
+ // convert each body part, and accumulate the conversion result
+ converted = converted && convertTransferEncoding((MimePart)parts.getBodyPart(i));
+ }
+ }
+ else {
+ // we only do this if the encoding is quoted-printable or base64
+ String encoding = bodyPart.getEncoding();
+ if (encoding != null) {
+ encoding = encoding.toLowerCase();
+ if (encoding.equals("quoted-printable") || encoding.equals("base64")) {
+ // this requires encoding. Read the actual content to see if
+ // it conforms to the 8bit encoding rules.
+ if (isValid8bit(bodyPart.getInputStream())) {
+ // There's a huge hidden gotcha lurking under the covers here.
+ // If the content just exists as an encoded byte array, then just
+ // switching the transfer encoding will mess things up because the
+ // already encoded data gets transmitted in encoded form, but with
+ // and 8bit encoding style. As a result, it doesn't get unencoded on
+ // the receiving end. This is a nasty problem to debug.
+ //
+ // The solution is to get the content as it's object type, set it back
+ // on the the message in raw form. Requesting the content will apply the
+ // current transfer encoding value to the data. Once we have set the
+ // content value back, we can reset the transfer encoding.
+ bodyPart.setContent(bodyPart.getContent(), bodyPart.getContentType());
+
+ // it's valid, so change the transfer encoding to just
+ // pass the data through.
+ bodyPart.setHeader("Content-Transfer-Encoding", "8bit");
+ converted = true; // we've changed something
+ }
+ }
+ }
+ }
+ } catch (MessagingException e) {
+ } catch (IOException e) {
+ }
+ return converted;
+ }
+
+
+ /**
+ * Get the server's welcome blob from the wire....
+ */
+ protected boolean getWelcome() throws MessagingException {
+ SMTPReply line = getReply();
+ // just return the error status...we don't care about any of the
+ // response information
+ return !line.isError();
+ }
+
+
+ /**
+ * Get an estimate of the transmission size for this
+ * message. This size is the complete message as it is
+ * encoded and transmitted on the DATA command, not counting
+ * the terminating ".CRLF".
+ *
+ * @param msg The message we're sending.
+ *
+ * @return The count of bytes, if it can be calculated.
+ */
+ protected int getSizeEstimate(Message msg) {
+ // now the data... I could look at the type, but
+ try {
+ CountingOutputStream outputStream = new CountingOutputStream();
+
+ // the data content has two requirements we need to meet by
+ // filtering the
+ // output stream. Requirement 1 is to conicalize any line breaks.
+ // All line
+ // breaks will be transformed into properly formed CRLF sequences.
+ //
+ // Requirement 2 is to perform byte-stuff for any line that begins
+ // with a "."
+ // so that data is not confused with the end-of-data marker (a
+ // "\r\n.\r\n" sequence.
+ //
+ // The MIME output stream performs those two functions on behalf of
+ // the content
+ // writer.
+ MIMEOutputStream mimeOut = new MIMEOutputStream(outputStream);
+
+ msg.writeTo(mimeOut);
+
+ // now to finish, we make sure there's a line break at the end.
+ mimeOut.forceTerminatingLineBreak();
+ // and flush the data to send it along
+ mimeOut.flush();
+
+ return outputStream.getCount();
+ } catch (IOException e) {
+ return 0; // can't get an estimate
+ } catch (MessagingException e) {
+ return 0; // can't get an estimate
+ }
+ }
+
+
+ /**
+ * Sends the data in the message down the socket. This presumes the server
+ * is in the right place and ready for getting the DATA message and the data
+ * right place in the sequence
+ */
+ protected void sendData(Message msg) throws MessagingException {
+
+ // send the DATA command
+ SMTPReply line = sendCommand("DATA");
+
+ if (line.isError()) {
+ throw new MessagingException("Error issuing SMTP 'DATA' command: " + line);
+ }
+
+ // now the data... I could look at the type, but
+ try {
+ // the data content has two requirements we need to meet by
+ // filtering the
+ // output stream. Requirement 1 is to conicalize any line breaks.
+ // All line
+ // breaks will be transformed into properly formed CRLF sequences.
+ //
+ // Requirement 2 is to perform byte-stuff for any line that begins
+ // with a "."
+ // so that data is not confused with the end-of-data marker (a
+ // "\r\n.\r\n" sequence.
+ //
+ // The MIME output stream performs those two functions on behalf of
+ // the content
+ // writer.
+ MIMEOutputStream mimeOut = new MIMEOutputStream(outputStream);
+
+ msg.writeTo(mimeOut);
+
+ // now to finish, we send a CRLF sequence, followed by a ".".
+ mimeOut.writeSMTPTerminator();
+ // and flush the data to send it along
+ mimeOut.flush();
+ } catch (IOException e) {
+ throw new MessagingException(e.toString());
+ } catch (MessagingException e) {
+ throw new MessagingException(e.toString());
+ }
+
+ // use a longer time out here to give the server time to process the
+ // data.
+ try {
+ line = new SMTPReply(receiveLine(TIMEOUT * 2));
+ } catch (MalformedSMTPReplyException e) {
+ throw new MessagingException(e.toString());
+ } catch (MessagingException e) {
+ throw new MessagingException(e.toString());
+ }
+
+ if (line.isError()) {
+ throw new MessagingException("Error issuing SMTP 'DATA' command: " + line);
+ }
+ }
+
+ /**
+ * Sends the QUIT message and receieves the response
+ */
+ protected void sendQuit() throws MessagingException {
+ // there's yet another property that controls whether we should wait for
+ // a reply for a QUIT command. If true, we're suppposed to wait for a response
+ // from the QUIT command. Otherwise we just send the QUIT and bail. The default
+ // is "false"
+ if (props.getBooleanProperty(MAIL_SMTP_QUITWAIT, true)) {
+ // handle as a real command...we're going to ignore the response.
+ sendCommand("QUIT");
+ } else {
+ // just send the command without waiting for a response.
+ sendLine("QUIT");
+ }
+ }
+
+ /**
+ * Sets a receiver address for the current message
+ *
+ * @param addr
+ * The target address.
+ * @param dsn
+ * An optional DSN option appended to the RCPT TO command.
+ *
+ * @return The status for this particular send operation.
+ * @exception MessagingException
+ */
+ public SendStatus sendRcptTo(InternetAddress addr, String dsn) throws MessagingException {
+ // compose the command using the fixed up email address. Normally, this
+ // involves adding
+ // "<" and ">" around the address.
+
+ StringBuffer command = new StringBuffer();
+
+ // compose the first part of the command
+ command.append("RCPT TO: ");
+ command.append(fixEmailAddress(addr.getAddress()));
+
+ // if we have DSN information, append it to the command.
+ if (dsn != null) {
+ command.append(" NOTIFY=");
+ command.append(dsn);
+ }
+
+ // get a string version of this command.
+ String commandString = command.toString();
+
+ SMTPReply line = sendCommand(commandString);
+
+ switch (line.getCode()) {
+ // these two are both successful transmissions
+ case SMTPReply.COMMAND_ACCEPTED:
+ case SMTPReply.ADDRESS_NOT_LOCAL:
+ // we get out of here with the status information.
+ return new SendStatus(SendStatus.SUCCESS, addr, commandString, line);
+
+ // these are considered invalid address errors
+ case SMTPReply.PARAMETER_SYNTAX_ERROR:
+ case SMTPReply.INVALID_COMMAND_SEQUENCE:
+ case SMTPReply.MAILBOX_NOT_FOUND:
+ case SMTPReply.INVALID_MAILBOX:
+ case SMTPReply.USER_NOT_LOCAL:
+ // we get out of here with the status information.
+ return new SendStatus(SendStatus.INVALID_ADDRESS, addr, commandString, line);
+
+ // the command was valid, but something went wrong in the server.
+ case SMTPReply.SERVICE_NOT_AVAILABLE:
+ case SMTPReply.MAILBOX_BUSY:
+ case SMTPReply.PROCESSING_ERROR:
+ case SMTPReply.INSUFFICIENT_STORAGE:
+ case SMTPReply.MAILBOX_FULL:
+ // we get out of here with the status information.
+ return new SendStatus(SendStatus.SEND_FAILURE, addr, commandString, line);
+
+ // everything else is considered really bad...
+ default:
+ // we get out of here with the status information.
+ return new SendStatus(SendStatus.GENERAL_ERROR, addr, commandString, line);
+ }
+ }
+
+ /**
+ * Send a command to the server, returning the first response line back as a
+ * reply.
+ *
+ * @param data
+ * The data to send.
+ *
+ * @return A reply object with the reply line.
+ * @exception MessagingException
+ */
+ protected SMTPReply sendCommand(String data) throws MessagingException {
+ sendLine(data);
+ return getReply();
+ }
+
+ /**
+ * Sends a message down the socket and terminates with the appropriate CRLF
+ */
+ protected void sendLine(String data) throws MessagingException {
+ if (socket == null || !socket.isConnected()) {
+ throw new MessagingException("no connection");
+ }
+ try {
+ outputStream.write(data.getBytes());
+ outputStream.write(CR);
+ outputStream.write(LF);
+ outputStream.flush();
+ } catch (IOException e) {
+ throw new MessagingException(e.toString());
+ }
+ }
+
+ /**
+ * Receives one line from the server. A line is a sequence of bytes
+ * terminated by a CRLF
+ *
+ * @return the line from the server as String
+ */
+ protected String receiveLine() throws MessagingException {
+ return receiveLine(TIMEOUT);
+ }
+
+ /**
+ * Get a reply line for an SMTP command.
+ *
+ * @return An SMTP reply object from the stream.
+ */
+ protected SMTPReply getReply() throws MessagingException {
+ try {
+ lastServerResponse = new SMTPReply(receiveLine());
+ // if the first line we receive is a continuation, continue
+ // reading lines until we reach the non-continued one.
+ while (lastServerResponse.isContinued()) {
+ lastServerResponse.addLine(receiveLine());
+ }
+ } catch (MalformedSMTPReplyException e) {
+ throw new MessagingException(e.toString());
+ } catch (MessagingException e) {
+ throw e;
+ }
+ return lastServerResponse;
+ }
+
+ /**
+ * Retrieve the last response received from the SMTP server.
+ *
+ * @return The raw response string (including the error code) returned from
+ * the SMTP server.
+ */
+ public SMTPReply getLastServerResponse() {
+ return lastServerResponse;
+ }
+
+
+ /**
+ * Receives one line from the server. A line is a sequence of bytes
+ * terminated by a CRLF
+ *
+ * @return the line from the server as String
+ */
+ protected String receiveLine(int delayMillis) throws MessagingException {
+ if (socket == null || !socket.isConnected()) {
+ throw new MessagingException("no connection");
+ }
+
+ int timeout = 0;
+
+ try {
+ // for now, read byte for byte, looking for a CRLF
+ timeout = socket.getSoTimeout();
+
+ socket.setSoTimeout(delayMillis);
+
+ StringBuffer buff = new StringBuffer();
+
+ int c;
+ boolean crFound = false, lfFound = false;
+
+ while ((c = inputStream.read()) != -1 && crFound == false && lfFound == false) {
+ // we're looking for a CRLF sequence, so mark each one as seen.
+ // Any other
+ // character gets appended to the end of the buffer.
+ if (c == CR) {
+ crFound = true;
+ } else if (c == LF) {
+ lfFound = true;
+ } else {
+ buff.append((char) c);
+ }
+ }
+
+ String line = buff.toString();
+ return line;
+
+ } catch (SocketException e) {
+ throw new MessagingException(e.toString());
+ } catch (IOException e) {
+ throw new MessagingException(e.toString());
+ } finally {
+ try {
+ socket.setSoTimeout(timeout);
+ } catch (SocketException e) {
+ // ignore - was just trying to do the decent thing...
+ }
+ }
+ }
+
+ /**
+ * Convert an InternetAddress into a form sendable on an SMTP mail command.
+ * InternetAddress.getAddress() generally returns just the address portion
+ * of the full address, minus route address markers. We need to ensure we
+ * have an address with '<' and '>' delimiters.
+ *
+ * @param mail
+ * The mail address returned from InternetAddress.getAddress().
+ *
+ * @return A string formatted for sending.
+ */
+ protected String fixEmailAddress(String mail) {
+ if (mail.charAt(0) == '<') {
+ return mail;
+ }
+ return "<" + mail + ">";
+ }
+
+ /**
+ * Start the handshake process with the server, including setting up and
+ * TLS-level work. At the completion of this task, we should be ready to
+ * authenticate with the server, if needed.
+ */
+ protected boolean sendHandshake() throws MessagingException {
+ // check to see what sort of initial handshake we need to make.
+ boolean useEhlo = props.getBooleanProperty(MAIL_SMTP_EHLO, true);
+ // if we're to use Ehlo, send it and then fall back to just a HELO
+ // message if it fails.
+ if (useEhlo) {
+ if (!sendEhlo()) {
+ sendHelo();
+ }
+ } else {
+ // send the initial hello response.
+ sendHelo();
+ }
+
+ if (useTLS) {
+ // if we've been told to use TLS, and this server doesn't support
+ // it, then this is a failure
+ if (!serverTLS) {
+ throw new MessagingException("Server doesn't support required transport level security");
+ }
+ // if the server supports TLS, then use it for the connection.
+ // on our connection.
+ getConnectedTLSSocket();
+
+ // some servers (gmail is one that I know of) only send a STARTTLS
+ // extension message on the
+ // first EHLO command. Now that we have the TLS handshaking
+ // established, we need to send a
+ // second EHLO message to retrieve the AUTH records from the server.
+ if (!sendEhlo()) {
+ throw new MessagingException("Failure sending EHLO command to SMTP server");
+ }
+ }
+
+ // this worked.
+ return true;
+ }
+
+
+ /**
+ * Switch the connection to using TLS level security, switching to an SSL
+ * socket.
+ */
+ protected void getConnectedTLSSocket() throws MessagingException {
+ debugOut("Attempting to negotiate STARTTLS with server " + serverHost);
+ // tell the server of our intention to start a TLS session
+ SMTPReply line = sendCommand("STARTTLS");
+
+ if (line.getCode() != SMTPReply.SERVICE_READY) {
+ debugOut("STARTTLS command rejected by SMTP server " + serverHost);
+ throw new MessagingException("Unable to make TLS server connection");
+ }
+
+ debugOut("STARTTLS command accepted");
+
+ // the base class handles the socket switch details
+ super.getConnectedTLSSocket();
+ }
+
+
+ /**
+ * Send the EHLO command to the SMTP server.
+ *
+ * @return True if the command was accepted ok, false for any errors.
+ * @exception SMTPTransportException
+ * @exception MalformedSMTPReplyException
+ * @exception MessagingException
+ */
+ protected boolean sendEhlo() throws MessagingException {
+ sendLine("EHLO " + getLocalHost());
+
+ SMTPReply reply = getReply();
+
+ // we get a 250 code back. The first line is just a greeting, and
+ // extensions are identifed on
+ // continuations. If this fails, then we'll try once more with HELO to
+ // establish bona fides.
+ if (reply.getCode() != SMTPReply.COMMAND_ACCEPTED) {
+ return false;
+ }
+
+ // create a fresh mapping and authentications table
+ capabilities = new HashMap();
+ authentications = new ArrayList();
+
+ List lines = reply.getLines();
+ // process all of the continuation lines
+ for (int i = 1; i < lines.size(); i++) {
+ // go process the extention
+ processExtension((String)lines.get(i));
+ }
+ return true;
+ }
+
+ /**
+ * Send the HELO command to the SMTP server.
+ *
+ * @exception MessagingException
+ */
+ protected void sendHelo() throws MessagingException {
+ // create a fresh mapping and authentications table
+ // these will be empty, but it will prevent NPEs
+ capabilities = new HashMap();
+ authentications = new ArrayList();
+
+ sendLine("HELO " + getLocalHost());
+
+ SMTPReply line = getReply();
+
+ // we get a 250 code back. The first line is just a greeting, and
+ // extensions are identifed on
+ // continuations. If this fails, then we'll try once more with HELO to
+ // establish bona fides.
+ if (line.getCode() != SMTPReply.COMMAND_ACCEPTED) {
+ throw new MessagingException("Failure sending HELO command to SMTP server");
+ }
+ }
+
+ /**
+ * Return the current startTLS property.
+ *
+ * @return The current startTLS property.
+ */
+ public boolean getStartTLS() {
+ return useTLS;
+ }
+
+
+ /**
+ * Set a new value for the startTLS property.
+ *
+ * @param start
+ * The new setting.
+ */
+ public void setStartTLS(boolean start) {
+ useTLS = start;
+ }
+
+
+ /**
+ * Process an extension string passed back as the EHLP response.
+ *
+ * @param extension
+ * The string value of the extension (which will be of the form
+ * "NAME arguments").
+ */
+ protected void processExtension(String extension) {
+ debugOut("Processing extension " + extension);
+ String extensionName = extension.toUpperCase();
+ String argument = "";
+
+ int delimiter = extension.indexOf(' ');
+ // if we have a keyword with arguments, parse them out and add to the
+ // argument map.
+ if (delimiter != -1) {
+ extensionName = extension.substring(0, delimiter).toUpperCase();
+ argument = extension.substring(delimiter + 1);
+ }
+
+ // add this to the map so it can be tested later.
+ capabilities.put(extensionName, argument);
+
+ // process a few special ones that don't require extra parsing.
+ // AUTH and AUTH=LOGIN are handled the same
+ if (extensionName.equals("AUTH")) {
+ // if we don't have an argument on AUTH, this means LOGIN.
+ if (argument == null) {
+ authentications.add("LOGIN");
+ } else {
+ // The security mechanisms are blank delimited tokens.
+ StringTokenizer tokenizer = new StringTokenizer(argument);
+
+ while (tokenizer.hasMoreTokens()) {
+ String mechanism = tokenizer.nextToken().toUpperCase();
+ authentications.add(mechanism);
+ }
+ }
+ }
+ // special case for some older servers.
+ else if (extensionName.equals("AUTH=LOGIN")) {
+ authentications.add("LOGIN");
+ }
+ // does this support transport level security?
+ else if (extensionName.equals("STARTTLS")) {
+ // flag this for later
+ serverTLS = true;
+ }
+ }
+
+
+ /**
+ * Retrieve any argument information associated with a extension reported
+ * back by the server on the EHLO command.
+ *
+ * @param name
+ * The name of the target server extension.
+ *
+ * @return Any argument passed on a server extension. Returns null if the
+ * extension did not include an argument or the extension was not
+ * supported.
+ */
+ public String extensionParameter(String name) {
+ if (capabilities != null) {
+ return (String)capabilities.get(name);
+ }
+ return null;
+ }
+
+
+ /**
+ * Tests whether the target server supports a named extension.
+ *
+ * @param name
+ * The target extension name.
+ *
+ * @return true if the target server reported on the EHLO command that is
+ * supports the targer server, false if the extension was not
+ * supported.
+ */
+ public boolean supportsExtension(String name) {
+ // this only returns null if we don't have this extension
+ return extensionParameter(name) != null;
+ }
+
+
+ /**
+ * Authenticate with the server, if necessary (or possible).
+ *
+ * @return true if we are ok to proceed, false for an authentication
+ * failures.
+ */
+ protected boolean processAuthentication() throws MessagingException {
+ // no authentication defined?
+ if (!props.getBooleanProperty(MAIL_SMTP_AUTH, false)) {
+ return true;
+ }
+
+ // we need to authenticate, but we don't have userid/password
+ // information...fail this
+ // immediately.
+ if (username == null || password == null) {
+ return false;
+ }
+
+ // if unable to get an appropriate authenticator, just fail it.
+ ClientAuthenticator authenticator = getSaslAuthenticator();
+ if (authenticator == null) {
+ throw new MessagingException("Unable to obtain SASL authenticator");
+ }
+
+
+ if (debug) {
+ debugOut("Authenticating for user: " + username + " using " + authenticator.getMechanismName());
+ }
+
+ // if the authenticator has some initial data, we compose a command
+ // containing the initial data.
+ if (authenticator.hasInitialResponse()) {
+ StringBuffer command = new StringBuffer();
+ // the auth command initiates the handshaking.
+ command.append("AUTH ");
+ // and tell the server which mechanism we're using.
+ command.append(authenticator.getMechanismName());
+ command.append(" ");
+ // and append the response data
+ command.append(new String(Base64.encode(authenticator.evaluateChallenge(null))));
+ // send the command now
+ sendLine(command.toString());
+ }
+ // we just send an auth command with the command type.
+ else {
+ StringBuffer command = new StringBuffer();
+ // the auth command initiates the handshaking.
+ command.append("AUTH ");
+ // and tell the server which mechanism we're using.
+ command.append(authenticator.getMechanismName());
+ // send the command now
+ sendLine(command.toString());
+ }
+
+ // now process the challenge sequence. We get a 235 response back when
+ // the server accepts the
+ // authentication, and a 334 indicates we have an additional challenge.
+ while (true) {
+ // get the next line, and if it is an error response, return now.
+ SMTPReply line;
+ try {
+ line = new SMTPReply(receiveLine());
+ } catch (MalformedSMTPReplyException e) {
+ throw new MessagingException(e.toString());
+ } catch (MessagingException e) {
+ throw e;
+ }
+
+ // if we get a completion return, we've passed muster, so give an
+ // authentication response.
+ if (line.getCode() == SMTPReply.AUTHENTICATION_COMPLETE) {
+ debugOut("Successful SMTP authentication");
+ return true;
+ }
+ // we have an additional challenge to process.
+ else if (line.getCode() == SMTPReply.AUTHENTICATION_CHALLENGE) {
+ // Does the authenticator think it is finished? We can't answer
+ // an additional challenge,
+ // so fail this.
+ if (authenticator.isComplete()) {
+ return false;
+ }
+
+ // we're passed back a challenge value, Base64 encoded.
+ byte[] challenge = Base64.decode(line.getMessage().getBytes());
+
+ // have the authenticator evaluate and send back the encoded
+ // response.
+ sendLine(new String(Base64.encode(authenticator.evaluateChallenge(challenge))));
+ }
+ // completion or challenge are the only responses we know how to
+ // handle. Anything else must
+ // be a failure.
+ else {
+ if (debug) {
+ debugOut("Authentication failure " + line);
+ }
+ return false;
+ }
+ }
+ }
+
+
+ /**
+ * Attempt to retrieve a SASL authenticator for this
+ * protocol.
+ *
+ * @return A SASL authenticator, or null if a suitable one
+ * was not located.
+ */
+ protected ClientAuthenticator getSaslAuthenticator() {
+ return AuthenticatorFactory.getAuthenticator(props, selectSaslMechanisms(), serverHost, username, password, authid, realm);
+ }
+
+
+ /**
+ * Read the bytes in a stream a test to see if this
+ * conforms to the RFC 2045 rules for 8bit encoding.
+ *
+ * 1) No more than 998 bytes long
+ * 2) All lines are terminated with CRLF sequences
+ * 3) CR and LF characters only occur in properly
+ * formed line separators
+ * 4) No null characters are allowed.
+ *
+ * @param inStream The source input stream.
+ *
+ * @return true if this can be transmitted successfully
+ * using 8bit encoding, false if an alternate encoding
+ * will be required.
+ */
+ protected boolean isValid8bit(InputStream inStream) {
+ try {
+ int ch;
+ int lineLength = 0;
+ while ((ch = inStream.read()) >= 0) {
+ // nulls are decidedly not allowed
+ if (ch == 0) {
+ return false;
+ }
+ // start of a CRLF sequence (potentially)
+ else if (ch == '\r') {
+ // check the next character. There must be one,
+ // and it must be a LF for this to be value
+ ch = inStream.read();
+ if (ch != '\n') {
+ return false;
+ }
+ // reset the line length
+ lineLength = 0;
+ }
+ else {
+ // a normal character
+ lineLength++;
+ // make sure the line is not too long
+ if (lineLength > 998) {
+ return false;
+ }
+ }
+
+ }
+ } catch (IOException e) {
+ return false; // can't read this, don't try passing it
+ }
+ // this converted ok
+ return true;
+ }
+
+
+ /**
+ * Simple holder class for the address/send status duple, as we can have
+ * mixed success for a set of addresses and a message
+ */
+ static public class SendStatus {
+ public final static int SUCCESS = 0;
+
+ public final static int INVALID_ADDRESS = 1;
+
+ public final static int SEND_FAILURE = 2;
+
+ public final static int GENERAL_ERROR = 3;
+
+ // the status type of the send operation.
+ int status;
+
+ // the address associated with this status
+ InternetAddress address;
+
+ // the command string send to the server.
+ String cmd;
+
+ // the reply from the server.
+ SMTPReply reply;
+
+ /**
+ * Constructor for a SendStatus item.
+ *
+ * @param s
+ * The status type.
+ * @param a
+ * The address this is the status for.
+ * @param c
+ * The command string associated with this status.
+ * @param r
+ * The reply information from the server.
+ */
+ public SendStatus(int s, InternetAddress a, String c, SMTPReply r) {
+ this.cmd = c;
+ this.status = s;
+ this.address = a;
+ this.reply = r;
+ }
+
+ /**
+ * Get the status information for this item.
+ *
+ * @return The current status code.
+ */
+ public int getStatus() {
+ return this.status;
+ }
+
+ /**
+ * Retrieve the InternetAddress object associated with this send
+ * operation.
+ *
+ * @return The associated address object.
+ */
+ public InternetAddress getAddress() {
+ return this.address;
+ }
+
+ /**
+ * Retrieve the reply information associated with this send operati
+ *
+ * @return The SMTPReply object received for the operation.
+ */
+ public SMTPReply getReply() {
+ return reply;
+ }
+
+ /**
+ * Get the command string sent for this send operation.
+ *
+ * @return The command string for the MAIL TO command sent to the
+ * server.
+ */
+ public String getCommand() {
+ return cmd;
+ }
+
+ /**
+ * Get an exception object associated with this send operation. There is
+ * a mechanism for reporting send success via a send operation, so this
+ * will be either a success or failure exception.
+ *
+ * @param reportSuccess
+ * Indicates if we want success operations too.
+ *
+ * @return A newly constructed exception object.
+ */
+ public MessagingException getException(boolean reportSuccess) {
+ if (status != SUCCESS) {
+ return new SMTPAddressFailedException(address, cmd, reply.getCode(), reply.getMessage());
+ } else {
+ if (reportSuccess) {
+ return new SMTPAddressSucceededException(address, cmd, reply.getCode(), reply.getMessage());
+ }
+ }
+ return null;
+ }
+ }
+
+
+ /**
+ * Reset the server connection after an error.
+ *
+ * @exception MessagingException
+ */
+ public void resetConnection() throws MessagingException {
+ // we want the caller to retrieve the last response responsbile for
+ // requiring the reset, so save and
+ // restore that info around the reset.
+ SMTPReply last = lastServerResponse;
+
+ // send a reset command.
+ SMTPReply line = sendCommand("RSET");
+
+ // if this did not reset ok, just close the connection
+ if (line.getCode() != SMTPReply.COMMAND_ACCEPTED) {
+ close();
+ }
+ // restore this.
+ lastServerResponse = last;
+ }
+
+
+ /**
+ * Return the current reportSuccess property.
+ *
+ * @return The current reportSuccess property.
+ */
+ public boolean getReportSuccess() {
+ return reportSuccess;
+ }
+
+ /**
+ * Set a new value for the reportSuccess property.
+ *
+ * @param report
+ * The new setting.
+ */
+ public void setReportSuccess(boolean report) {
+ reportSuccess = report;
+ }
+}
+
Propchange: geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java
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Propchange: geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java
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svn:keywords = Date Revision
Propchange: geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPConnection.java
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svn:mime-type = text/plain
Modified: geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPReply.java
URL: http://svn.apache.org/viewvc/geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPReply.java?rev=673649&r1=673648&r2=673649&view=diff
==============================================================================
--- geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPReply.java (original)
+++ geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/transport/smtp/SMTPReply.java Thu Jul 3 03:37:56 2008
@@ -28,6 +28,49 @@
* @version $Rev$ $Date$
*/
class SMTPReply {
+ // SMTP reply codes
+ public static final int SERVICE_READY = 220;
+
+ public static final int SERVICE_CLOSING = 221;
+
+ public static final int AUTHENTICATION_COMPLETE = 235;
+
+ public static final int COMMAND_ACCEPTED = 250;
+
+ public static final int ADDRESS_NOT_LOCAL = 251;
+
+ public static final int AUTHENTICATION_CHALLENGE = 334;
+
+ public static final int START_MAIL_INPUT = 354;
+
+ public static final int SERVICE_NOT_AVAILABLE = 421;
+
+ public static final int MAILBOX_BUSY = 450;
+
+ public static final int PROCESSING_ERROR = 451;
+
+ public static final int INSUFFICIENT_STORAGE = 452;
+
+ public static final int COMMAND_SYNTAX_ERROR = 500;
+
+ public static final int PARAMETER_SYNTAX_ERROR = 501;
+
+ public static final int COMMAND_NOT_IMPLEMENTED = 502;
+
+ public static final int INVALID_COMMAND_SEQUENCE = 503;
+
+ public static final int COMMAND_PARAMETER_NOT_IMPLEMENTED = 504;
+
+ public static final int MAILBOX_NOT_FOUND = 550;
+
+ public static final int USER_NOT_LOCAL = 551;
+
+ public static final int MAILBOX_FULL = 552;
+
+ public static final int INVALID_MAILBOX = 553;
+
+ public static final int TRANSACTION_FAILED = 553;
+
// The original reply string
private final String reply;