Package org.apache.commons.net.smtp

Class AuthenticatingSMTPClient

java.lang.Object

org.apache.commons.net.SocketClient

org.apache.commons.net.smtp.SMTP

org.apache.commons.net.smtp.SMTPClient

org.apache.commons.net.smtp.SMTPSClient

org.apache.commons.net.smtp.AuthenticatingSMTPClient

public class AuthenticatingSMTPClient
extends SMTPSClient

An SMTP Client class with authentication support (RFC4954).

Since:

3.0

See Also:

• SMTPClient

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	AuthenticatingSMTPClient.AUTH_METHOD	The enumeration of currently-supported authentication methods.

Field Summary

Fields inherited from class org.apache.commons.net.smtp.SMTP

_commandSupport_, DEFAULT_PORT, encoding

Fields inherited from class org.apache.commons.net.SocketClient

_defaultPort_, _hostname_, _input_, _output_, _serverSocketFactory_, _socket_, _socketFactory_, _timeout_, connectTimeout, NETASCII_EOL, remoteInetSocketAddress

Constructor Summary

Constructors

Constructor	Description
AuthenticatingSMTPClient()	The default AuthenticatingSMTPClient constructor.
AuthenticatingSMTPClient(boolean implicit, SSLContext ctx)	Overloaded constructor that takes the implicit argument, and using SMTPSClient.DEFAULT_PROTOCOL i.e.
AuthenticatingSMTPClient(String protocol)	Overloaded constructor that takes a protocol specification
AuthenticatingSMTPClient(String proto, boolean implicit)	Overloaded constructor that takes a protocol specification and the implicit argument
AuthenticatingSMTPClient(String proto, boolean implicit, String encoding)	Overloaded constructor that takes the protocol specification, the implicit argument and encoding
AuthenticatingSMTPClient(String protocol, String encoding)	Overloaded constructor that takes a protocol specification and encoding

Method Summary

Modifier and Type	Method	Description
boolean	auth(AuthenticatingSMTPClient.AUTH_METHOD method, String user, String password)	Authenticate to the SMTP server by sending the AUTH command with the selected mechanism, using the given user and the given password.
int	ehlo(String hostname)	A convenience method to send the ESMTP EHLO command to the server, receive the reply, and return the reply code.
boolean	elogin()	Login to the ESMTP server by sending the EHLO command with the client hostname as an argument.
boolean	elogin(String hostname)	Login to the ESMTP server by sending the EHLO command with the given hostname as an argument.
int[]	getEnhancedReplyCode()	Returns the integer values of the enhanced reply code of the last SMTP reply.

Methods inherited from class org.apache.commons.net.smtp.SMTPSClient

_connectAction_, execTLS, getEnabledCipherSuites, getEnabledProtocols, getHostnameVerifier, getKeyManager, getTrustManager, isEndpointCheckingEnabled, setEnabledCipherSuites, setEnabledProtocols, setEndpointCheckingEnabled, setHostnameVerifier, setKeyManager, setTrustManager

Methods inherited from class org.apache.commons.net.smtp.SMTPClient

addRecipient, addRecipient, completePendingCommand, listHelp, listHelp, login, login, logout, reset, sendMessageData, sendNoOp, sendShortMessageData, sendSimpleMessage, sendSimpleMessage, setSender, setSender, verify

Methods inherited from class org.apache.commons.net.smtp.SMTP

data, disconnect, expn, getCommandSupport, getReply, getReplyCode, getReplyString, getReplyStrings, helo, help, help, mail, noop, quit, rcpt, removeProtocolCommandistener, rset, saml, send, sendCommand, sendCommand, sendCommand, sendCommand, soml, turn, vrfy

Methods inherited from class org.apache.commons.net.SocketClient

addProtocolCommandListener, applySocketAttributes, checkOpenOutputStream, connect, connect, connect, connect, connect, connect, createCommandSupport, fireCommandSent, fireReplyReceived, getCharset, getCharsetName, getConnectTimeout, getDefaultPort, getDefaultTimeout, getKeepAlive, getLocalAddress, getLocalPort, getProxy, getReceiveBufferSize, getRemoteAddress, getRemoteInetSocketAddress, getRemotePort, getSendBufferSize, getServerSocketFactory, getSoLinger, getSoTimeout, getTcpNoDelay, isAvailable, isConnected, removeProtocolCommandListener, setCharset, setConnectTimeout, setDefaultPort, setDefaultTimeout, setKeepAlive, setProxy, setReceiveBufferSize, setSendBufferSize, setServerSocketFactory, setSocketFactory, setSoLinger, setSoTimeout, setTcpNoDelay, verifyRemote

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AuthenticatingSMTPClient

public AuthenticatingSMTPClient()

The default AuthenticatingSMTPClient constructor. Creates a new Authenticating SMTP Client.

AuthenticatingSMTPClient

public AuthenticatingSMTPClient(boolean implicit,
 SSLContext ctx)

Overloaded constructor that takes the implicit argument, and using SMTPSClient.DEFAULT_PROTOCOL i.e. TLS

Parameters:

implicit - The security mode, true for implicit, false for explicit

ctx - A pre-configured SSL Context.

Since:

3.3

AuthenticatingSMTPClient

public AuthenticatingSMTPClient(String protocol)

Overloaded constructor that takes a protocol specification

Parameters:

protocol - The protocol to use

AuthenticatingSMTPClient

public AuthenticatingSMTPClient(String proto,
 boolean implicit)

Overloaded constructor that takes a protocol specification and the implicit argument

Parameters:

proto - the protocol.

implicit - The security mode, true for implicit, false for explicit

Since:

3.3

AuthenticatingSMTPClient

public AuthenticatingSMTPClient(String proto,
 boolean implicit,
 String encoding)

Overloaded constructor that takes the protocol specification, the implicit argument and encoding

Parameters:

proto - the protocol.

implicit - The security mode, true for implicit, false for explicit

encoding - the encoding

Since:

3.3

AuthenticatingSMTPClient

public AuthenticatingSMTPClient(String protocol,
 String encoding)

Overloaded constructor that takes a protocol specification and encoding

Parameters:

protocol - The protocol to use

encoding - The encoding to use

Since:

3.3

Method Details

auth

public boolean auth(AuthenticatingSMTPClient.AUTH_METHOD method,
 String user,
 String password)
             throws IOException,
NoSuchAlgorithmException,
InvalidKeyException,
InvalidKeySpecException

Authenticate to the SMTP server by sending the AUTH command with the selected mechanism, using the given user and the given password.

Parameters:

method - the method to use, one of the AuthenticatingSMTPClient.AUTH_METHOD enum values

user - the user name. If the method is XOAUTH/XOAUTH2, then this is used as the plain text oauth protocol parameter string which is Base64-encoded for transmission.

password - the password for the username. Ignored for XOAUTH/XOAUTH2.

Returns:

True if successfully completed, false if not.

Throws:

SMTPConnectionClosedException - If the SMTP server prematurely closes the connection as a result of the client being idle or some other reason causing the server to send SMTP reply code 421. This exception may be caught either as an IOException or independently as itself.

IOException - If an I/O error occurs while either sending a command to the server or receiving a reply from the server.

NoSuchAlgorithmException - If the CRAM hash algorithm cannot be instantiated by the Java runtime system.

InvalidKeyException - If the CRAM hash algorithm failed to use the given password.

InvalidKeySpecException - If the CRAM hash algorithm failed to use the given password.

ehlo

public int ehlo(String hostname)
         throws IOException

A convenience method to send the ESMTP EHLO command to the server, receive the reply, and return the reply code.

Parameters:

hostname - The hostname of the sender.

Returns:

The reply code received from the server.

Throws:

SMTPConnectionClosedException - If the SMTP server prematurely closes the connection as a result of the client being idle or some other reason causing the server to send SMTP reply code 421. This exception may be caught either as an IOException or independently as itself.

IOException - If an I/O error occurs while either sending the command or receiving the server reply.

elogin

public boolean elogin()
               throws IOException

Login to the ESMTP server by sending the EHLO command with the client hostname as an argument. Before performing any mail commands, you must first login.

Returns:

True if successfully completed, false if not.

Throws:

SMTPConnectionClosedException - If the SMTP server prematurely closes the connection as a result of the client being idle or some other reason causing the server to send SMTP reply code 421. This exception may be caught either as an IOException or independently as itself.

IOException - If an I/O error occurs while either sending a command to the server or receiving a reply from the server.

elogin

public boolean elogin(String hostname)
               throws IOException

Login to the ESMTP server by sending the EHLO command with the given hostname as an argument. Before performing any mail commands, you must first login.

Parameters:

hostname - The hostname with which to greet the SMTP server.

Returns:

True if successfully completed, false if not.

Throws:

SMTPConnectionClosedException - If the SMTP server prematurely closes the connection as a result of the client being idle or some other reason causing the server to send SMTP reply code 421. This exception may be caught either as an IOException or independently as itself.

IOException - If an I/O error occurs while either sending a command to the server or receiving a reply from the server.

getEnhancedReplyCode

public int[] getEnhancedReplyCode()

Returns the integer values of the enhanced reply code of the last SMTP reply.

Returns:

The integer values of the enhanced reply code of the last SMTP reply. First digit is in the first array element.