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Class Authenticator

java.lang.Object  |  +--javax.mail.Authenticator

public abstract classAuthenticator

extends java.lang.Object

The class Authenticator represents an object that knows how to obtain authentication for a network connection. Usually, it will do this by prompting the user for information.

Applications use this class by creating a subclass, and registering an instance of that subclass with the session when it is created. When authentication is required, the system will invoke a method on the subclass (like getPasswordAuthentication). The subclass's method can query about the authentication being requested with a number of inherited methods (getRequestingXXX()), and form an appropriate message for the user.

All methods that request authentication have a default implementation that fails.

See Also:

java.net.Authenticator,Session.getInstance(java.util.Properties,javax.mail.Authenticator),Session.getDefaultInstance(java.util.Properties,javax.mail.Authenticator),Session.requestPasswordAuthentication(java.net.InetAddress, int, java.lang.String, java.lang.String, java.lang.String),PasswordAuthentication

Authenticator

publicAuthenticator()

getRequestingSite

protected final java.net.InetAddressgetRequestingSite()

Returns:

the InetAddress of the site requesting authorization, or nullif it's not available.

getRequestingPort

protected final intgetRequestingPort()

Returns:

the port for the requested connection

getRequestingProtocol

protected final java.lang.StringgetRequestingProtocol()

Give the protocol that's requesting the connection. Often this will be based on a URLName.

Returns:

the protcol

See Also:

URLName.getProtocol()

getRequestingPrompt

protected final java.lang.StringgetRequestingPrompt()

Returns:

the prompt string given by the requestor

getDefaultUserName

protected final java.lang.StringgetDefaultUserName()

Returns:

the default user name given by the requestor

getPasswordAuthentication

protectedPasswordAuthenticationgetPasswordAuthentication()

Called when password authentication is needed. Subclasses should override the default implementation, which returns null.

Note that if this method uses a dialog to prompt the user for this information, the dialog needs to block until the user supplies the information. This method can not simply return after showing the dialog.

Returns:

The PasswordAuthentication collected from theuser, or null if none is provided.