authenticator.html

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<A NAME="Authenticator()"><!-- --></A><H3>
Authenticator</H3>
<PRE>
public <B>Authenticator</B>()</PRE>
<DL>
</DL>

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<A NAME="setDefault(java.net.Authenticator)"><!-- --></A><H3>
setDefault</H3>
<PRE>
public static void <B>setDefault</B>(<A HREF="../../java/net/Authenticator.html">Authenticator</A>&nbsp;a)</PRE>
<DL>
<DD>Sets the authenticator that will be used by the networking code
 when a proxy or an HTTP server asks for authenticator.
 If an Authenticator has already been established
 as the current authenticator, no action will be taken.
 If the argument is <code>null</code> and no
 authenticator has been established, then no action is taken
 and the method simply returns.
 <p>
 First, if there is a security manager, its <code>checkPermission</code> 
 method is called with a 
 <code>NetPermission("setDefaultAuthenticator")</code> permission.
 This may result in a java.lang.SecurityException. 
 <p>
 Typically, this method will be called exactly once, at system startup.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>a</CODE> - The authenticator<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/SecurityException.html">SecurityException</A></CODE> - if a security manager exists and its 
        <code>checkPermission</code> method doesn't allow 
        setting the default authenticator.<DT><B>See Also: </B><DD><A HREF="../../java/lang/SecurityManager.html#checkPermission(java.security.Permission)"><CODE>SecurityManager.checkPermission(java.security.Permission)</CODE></A>, 
<A HREF="../../java/net/NetPermission.html"><CODE>NetPermission</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="requestPasswordAuthentication(java.net.InetAddress, int, java.lang.String, java.lang.String, java.lang.String)"><!-- --></A><H3>
requestPasswordAuthentication</H3>
<PRE>
public static <A HREF="../../java/net/PasswordAuthentication.html">PasswordAuthentication</A> <B>requestPasswordAuthentication</B>(<A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;addr,
                                                                   int&nbsp;port,
                                                                   <A HREF="../../java/lang/String.html">String</A>&nbsp;protocol,
                                                                   <A HREF="../../java/lang/String.html">String</A>&nbsp;prompt,
                                                                   <A HREF="../../java/lang/String.html">String</A>&nbsp;scheme)</PRE>
<DL>
<DD>Ask the authenticator that has been registered with the system
 for a password.
 <p>
 First, if there is a security manager, its <code>checkPermission</code> 
 method is called with a 
 <code>NetPermission("requestPasswordAuthentication")</code> permission.
 This may result in a java.lang.SecurityException.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>addr</CODE> - The InetAddress of the site requesting authorization,
             or null if not known.<DD><CODE>port</CODE> - the port for the requested connection<DD><CODE>protocol</CODE> - The protocol that's requesting the connection
          (<CODE>java.net.Authenticator#getProtocol()</CODE>)<DD><CODE>prompt</CODE> - A prompt string for the user<DD><CODE>scheme</CODE> - The authentication scheme<DT><B>Returns:</B><DD>The username/password, or null if one can't be gotten.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/SecurityException.html">SecurityException</A></CODE> - if a security manager exists and its 
        <code>checkPermission</code> method doesn't allow 
        the password authentication request.<DT><B>See Also: </B><DD><A HREF="../../java/lang/SecurityManager.html#checkPermission(java.security.Permission)"><CODE>SecurityManager.checkPermission(java.security.Permission)</CODE></A>, 
<A HREF="../../java/net/NetPermission.html"><CODE>NetPermission</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getRequestingSite()"><!-- --></A><H3>
getRequestingSite</H3>
<PRE>
protected final <A HREF="../../java/net/InetAddress.html">InetAddress</A> <B>getRequestingSite</B>()</PRE>
<DL>
<DD>Gets the <code>InetAddress</code> of the
 site requesting authorization, or <code>null</code>
 if not available.<DD><DL>
<DT><B>Returns:</B><DD>the InetAddress of the site requesting authorization, or null
		if it's not available.</DL>
</DD>
</DL>
<HR>

<A NAME="getRequestingPort()"><!-- --></A><H3>
getRequestingPort</H3>
<PRE>
protected final int <B>getRequestingPort</B>()</PRE>
<DL>
<DD>Gets the port number for the requested connection.<DD><DL>
<DT><B>Returns:</B><DD>an <code>int</code> indicating the 
 port for the requested connection.</DL>
</DD>
</DL>
<HR>

<A NAME="getRequestingProtocol()"><!-- --></A><H3>
getRequestingProtocol</H3>
<PRE>
protected final <A HREF="../../java/lang/String.html">String</A> <B>getRequestingProtocol</B>()</PRE>
<DL>
<DD>Give the protocol that's requesting the connection.  Often this
 will be based on a URL, but in a future SDK it could be, for
 example, "SOCKS" for a password-protected SOCKS5 firewall.<DD><DL>
<DT><B>Returns:</B><DD>the protcol, optionally followed by "/version", where
		version is a version number.<DT><B>See Also: </B><DD><A HREF="../../java/net/URL.html#getProtocol()"><CODE>URL.getProtocol()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getRequestingPrompt()"><!-- --></A><H3>
getRequestingPrompt</H3>
<PRE>
protected final <A HREF="../../java/lang/String.html">String</A> <B>getRequestingPrompt</B>()</PRE>
<DL>
<DD>Gets the prompt string given by the requestor.<DD><DL>
<DT><B>Returns:</B><DD>the prompt string given by the requestor (realm for
		http requests)</DL>
</DD>
</DL>
<HR>

<A NAME="getRequestingScheme()"><!-- --></A><H3>
getRequestingScheme</H3>
<PRE>
protected final <A HREF="../../java/lang/String.html">String</A> <B>getRequestingScheme</B>()</PRE>
<DL>
<DD>Gets the scheme of the requestor (the HTTP scheme
 for an HTTP firewall, for example).<DD><DL>
<DT><B>Returns:</B><DD>the scheme of the requestor</DL>
</DD>
</DL>
<HR>

<A NAME="getPasswordAuthentication()"><!-- --></A><H3>
getPasswordAuthentication</H3>
<PRE>
protected <A HREF="../../java/net/PasswordAuthentication.html">PasswordAuthentication</A> <B>getPasswordAuthentication</B>()</PRE>
<DL>
<DD>Called when password authorization is needed.  Subclasses should
 override the default implementation, which returns null.<DD><DL>
<DT><B>Returns:</B><DD>The PasswordAuthentication collected from the
		user, or null if none is provided.</DL>
</DD>
</DL>
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