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HttpAuthenticator (HttpClient 3.1 API)
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org.apache.commons.httpclient.auth</FONT>
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Class HttpAuthenticator</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.commons.httpclient.auth.HttpAuthenticator</B>
</PRE>
<HR>
<B>Deprecated.</B> <I>no longer used</I>
<P>
<DL>
<DT><PRE>public final class <B>HttpAuthenticator</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL>
</PRE>
<P>
Utility methods for HTTP authorization and authentication. This class
provides utility methods for generating responses to HTTP www and proxy
authentication challenges.
<blockquote>
A client SHOULD assume that all paths at or deeper than the depth of the
last symbolic element in the path field of the Request-URI also are within
the protection space specified by the basic realm value of the current
challenge. A client MAY preemptively send the corresponding Authorization
header with requests for resources in that space without receipt of another
challenge from the server. Similarly, when a client sends a request to a
proxy, it may reuse a userid and password in the Proxy-Authorization header
field without receiving another challenge from the proxy server.
</blockquote>
</p>
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD><a href="mailto:remm@apache.org">Remy Maucherat</a>, Rodney Waldhoff, <a href="mailto:jsdever@apache.org">Jeff Dever</a>, Ortwin Gl?ck, Sean C. Sullivan, <a href="mailto:adrian@ephox.com">Adrian Sutton</a>, <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>, <a href="mailto:oleg@ural.ru">Oleg Kalnichevski</a></DD>
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<!-- =========== FIELD SUMMARY =========== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#PROXY_AUTH">PROXY_AUTH</A></B></CODE>
<BR>
<B>Deprecated.</B> The proxy authenticate challange header.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#PROXY_AUTH_RESP">PROXY_AUTH_RESP</A></B></CODE>
<BR>
<B>Deprecated.</B> The proxy authenticate response header.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#WWW_AUTH">WWW_AUTH</A></B></CODE>
<BR>
<B>Deprecated.</B> The www authenticate challange header.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#WWW_AUTH_RESP">WWW_AUTH_RESP</A></B></CODE>
<BR>
<B>Deprecated.</B> The www authenticate response header.</TD>
</TR>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#HttpAuthenticator()">HttpAuthenticator</A></B>()</CODE>
<BR>
<B>Deprecated.</B> </TD>
</TR>
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<!-- ========== METHOD SUMMARY =========== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#authenticate(org.apache.commons.httpclient.auth.AuthScheme, org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)">authenticate</A></B>(<A HREF="../../../../../org/apache/commons/httpclient/auth/AuthScheme.html" title="interface in org.apache.commons.httpclient.auth">AuthScheme</A> authscheme,
<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)</CODE>
<BR>
<B>Deprecated.</B> <I>use AuthScheme</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#authenticateDefault(org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)">authenticateDefault</A></B>(<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)</CODE>
<BR>
<B>Deprecated.</B> <I>use AuthScheme</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#authenticateProxy(org.apache.commons.httpclient.auth.AuthScheme, org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)">authenticateProxy</A></B>(<A HREF="../../../../../org/apache/commons/httpclient/auth/AuthScheme.html" title="interface in org.apache.commons.httpclient.auth">AuthScheme</A> authscheme,
<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)</CODE>
<BR>
<B>Deprecated.</B> <I>use AuthScheme</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#authenticateProxyDefault(org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)">authenticateProxyDefault</A></B>(<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)</CODE>
<BR>
<B>Deprecated.</B> <I>use AuthScheme</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthScheme.html" title="interface in org.apache.commons.httpclient.auth">AuthScheme</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/commons/httpclient/auth/HttpAuthenticator.html#selectAuthScheme(org.apache.commons.httpclient.Header[])">selectAuthScheme</A></B>(<A HREF="../../../../../org/apache/commons/httpclient/Header.html" title="class in org.apache.commons.httpclient">Header</A>[] challenges)</CODE>
<BR>
<B>Deprecated.</B> <I>Use <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthChallengeParser.html#parseChallenges(org.apache.commons.httpclient.Header[])"><CODE>AuthChallengeParser.parseChallenges(Header[])</CODE></A> and
<A HREF="../../../../../org/apache/commons/httpclient/auth/AuthPolicy.html#getAuthScheme(java.lang.String)"><CODE>AuthPolicy.getAuthScheme(String)</CODE></A></I></TD>
</TR>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
</TR>
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<P>
<!-- ============ FIELD DETAIL =========== -->
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<B>Field Detail</B></FONT></TH>
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</TABLE>
<A NAME="WWW_AUTH"><!-- --></A><H3>
WWW_AUTH</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>WWW_AUTH</B></PRE>
<DL>
<DD><B>Deprecated.</B> <DD>The www authenticate challange header.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.commons.httpclient.auth.HttpAuthenticator.WWW_AUTH">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="WWW_AUTH_RESP"><!-- --></A><H3>
WWW_AUTH_RESP</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>WWW_AUTH_RESP</B></PRE>
<DL>
<DD><B>Deprecated.</B> <DD>The www authenticate response header.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.commons.httpclient.auth.HttpAuthenticator.WWW_AUTH_RESP">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="PROXY_AUTH"><!-- --></A><H3>
PROXY_AUTH</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>PROXY_AUTH</B></PRE>
<DL>
<DD><B>Deprecated.</B> <DD>The proxy authenticate challange header.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.commons.httpclient.auth.HttpAuthenticator.PROXY_AUTH">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="PROXY_AUTH_RESP"><!-- --></A><H3>
PROXY_AUTH_RESP</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>PROXY_AUTH_RESP</B></PRE>
<DL>
<DD><B>Deprecated.</B> <DD>The proxy authenticate response header.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.commons.httpclient.auth.HttpAuthenticator.PROXY_AUTH_RESP">Constant Field Values</A></DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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</TABLE>
<A NAME="HttpAuthenticator()"><!-- --></A><H3>
HttpAuthenticator</H3>
<PRE>
public <B>HttpAuthenticator</B>()</PRE>
<DL>
<DD><B>Deprecated.</B> </DL>
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<A NAME="selectAuthScheme(org.apache.commons.httpclient.Header[])"><!-- --></A><H3>
selectAuthScheme</H3>
<PRE>
public static <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthScheme.html" title="interface in org.apache.commons.httpclient.auth">AuthScheme</A> <B>selectAuthScheme</B>(<A HREF="../../../../../org/apache/commons/httpclient/Header.html" title="class in org.apache.commons.httpclient">Header</A>[] challenges)
throws <A HREF="../../../../../org/apache/commons/httpclient/auth/MalformedChallengeException.html" title="class in org.apache.commons.httpclient.auth">MalformedChallengeException</A></PRE>
<DL>
<DD><B>Deprecated.</B> <I>Use <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthChallengeParser.html#parseChallenges(org.apache.commons.httpclient.Header[])"><CODE>AuthChallengeParser.parseChallenges(Header[])</CODE></A> and
<A HREF="../../../../../org/apache/commons/httpclient/auth/AuthPolicy.html#getAuthScheme(java.lang.String)"><CODE>AuthPolicy.getAuthScheme(String)</CODE></A></I>
<P>
<DD>Chooses the strongest authentication scheme supported from the
array of authentication challenges. Currently only <code>NTLM</code>,
<code>Digest</code>, <code>Basic</code> schemes are recognized.
The <code>NTLM</code> scheme is considered the strongest and is
preferred to all others. The <code>Digest</code> scheme is preferred to
the <code>Basic</code> one which provides no encryption for credentials.
The <code>Basic</code> scheme is used only if it is the only one
supported.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>challenges</CODE> - The array of authentication challenges
<DT><B>Returns:</B><DD>The strongest authentication scheme supported
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/MalformedChallengeException.html" title="class in org.apache.commons.httpclient.auth">MalformedChallengeException</A></CODE> - is thrown if an authentication
challenge is malformed
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/UnsupportedOperationException.html" title="class or interface in java.lang">UnsupportedOperationException</A></CODE> - when none of challenge types
available is supported.</DL>
</DD>
</DL>
<HR>
<A NAME="authenticateDefault(org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)"><!-- --></A><H3>
authenticateDefault</H3>
<PRE>
public static boolean <B>authenticateDefault</B>(<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)
throws <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></PRE>
<DL>
<DD><B>Deprecated.</B> <I>use AuthScheme</I>
<P>
<DD>Attempt to provide default authentication credentials
to the given method in the given context using basic
authentication scheme.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>method</CODE> - the HttpMethod which requires authentication<DD><CODE>conn</CODE> - the connection to a specific host. This parameter
may be <tt>null</tt> if default credentials (not specific
to any particular host) are to be used<DD><CODE>state</CODE> - the HttpState object providing Credentials
<DT><B>Returns:</B><DD>true if the <tt>Authenticate</tt> response header
was added
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/InvalidCredentialsException.html" title="class in org.apache.commons.httpclient.auth">InvalidCredentialsException</A></CODE> - if authentication credentials
are not valid or not applicable for basic scheme
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></CODE> - when a parsing or other error occurs<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/commons/httpclient/HttpState.html#setCredentials(java.lang.String, java.lang.String, org.apache.commons.httpclient.Credentials)"><CODE>HttpState.setCredentials(String,String,Credentials)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="authenticateProxyDefault(org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)"><!-- --></A><H3>
authenticateProxyDefault</H3>
<PRE>
public static boolean <B>authenticateProxyDefault</B>(<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)
throws <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></PRE>
<DL>
<DD><B>Deprecated.</B> <I>use AuthScheme</I>
<P>
<DD>Attempt to provide default proxy authentication credentials
to the given method in the given context using basic
authentication scheme.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>method</CODE> - the HttpMethod which requires authentication<DD><CODE>conn</CODE> - the connection to a specific host. This parameter
may be <tt>null</tt> if default credentials (not specific
to any particular host) are to be used<DD><CODE>state</CODE> - the HttpState object providing Credentials
<DT><B>Returns:</B><DD>true if the <tt>Proxy-Authenticate</tt> response header
was added
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/InvalidCredentialsException.html" title="class in org.apache.commons.httpclient.auth">InvalidCredentialsException</A></CODE> - if authentication credentials
are not valid or not applicable for basic scheme
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></CODE> - when a parsing or other error occurs<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/commons/httpclient/HttpState.html#setCredentials(java.lang.String, java.lang.String, org.apache.commons.httpclient.Credentials)"><CODE>HttpState.setCredentials(String,String,Credentials)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="authenticate(org.apache.commons.httpclient.auth.AuthScheme, org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)"><!-- --></A><H3>
authenticate</H3>
<PRE>
public static boolean <B>authenticate</B>(<A HREF="../../../../../org/apache/commons/httpclient/auth/AuthScheme.html" title="interface in org.apache.commons.httpclient.auth">AuthScheme</A> authscheme,
<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)
throws <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></PRE>
<DL>
<DD><B>Deprecated.</B> <I>use AuthScheme</I>
<P>
<DD>Attempt to provide requisite authentication credentials to the
given method in the given context using the given
authentication scheme.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>authscheme</CODE> - The authentication scheme to be used<DD><CODE>method</CODE> - The HttpMethod which requires authentication<DD><CODE>conn</CODE> - the connection to a specific host. This parameter
may be <tt>null</tt> if default credentials (not specific
to any particular host) are to be used<DD><CODE>state</CODE> - The HttpState object providing Credentials
<DT><B>Returns:</B><DD>true if the <tt>Authenticate</tt> response header was added
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/CredentialsNotAvailableException.html" title="class in org.apache.commons.httpclient.auth">CredentialsNotAvailableException</A></CODE> - if authentication credentials
required to respond to the authentication challenge are not available
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></CODE> - when a parsing or other error occurs<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/commons/httpclient/HttpState.html#setCredentials(java.lang.String, java.lang.String, org.apache.commons.httpclient.Credentials)"><CODE>HttpState.setCredentials(String,String,Credentials)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="authenticateProxy(org.apache.commons.httpclient.auth.AuthScheme, org.apache.commons.httpclient.HttpMethod, org.apache.commons.httpclient.HttpConnection, org.apache.commons.httpclient.HttpState)"><!-- --></A><H3>
authenticateProxy</H3>
<PRE>
public static boolean <B>authenticateProxy</B>(<A HREF="../../../../../org/apache/commons/httpclient/auth/AuthScheme.html" title="interface in org.apache.commons.httpclient.auth">AuthScheme</A> authscheme,
<A HREF="../../../../../org/apache/commons/httpclient/HttpMethod.html" title="interface in org.apache.commons.httpclient">HttpMethod</A> method,
<A HREF="../../../../../org/apache/commons/httpclient/HttpConnection.html" title="class in org.apache.commons.httpclient">HttpConnection</A> conn,
<A HREF="../../../../../org/apache/commons/httpclient/HttpState.html" title="class in org.apache.commons.httpclient">HttpState</A> state)
throws <A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></PRE>
<DL>
<DD><B>Deprecated.</B> <I>use AuthScheme</I>
<P>
<DD>Attempt to provide requisite proxy authentication credentials
to the given method in the given context using
the given authentication scheme.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>authscheme</CODE> - The authentication scheme to be used<DD><CODE>method</CODE> - the HttpMethod which requires authentication<DD><CODE>conn</CODE> - the connection to a specific host. This parameter
may be <tt>null</tt> if default credentials (not specific
to any particular host) are to be used<DD><CODE>state</CODE> - the HttpState object providing Credentials
<DT><B>Returns:</B><DD>true if the <tt>Proxy-Authenticate</tt> response header
was added
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/CredentialsNotAvailableException.html" title="class in org.apache.commons.httpclient.auth">CredentialsNotAvailableException</A></CODE> - if authentication credentials
required to respond to the authentication challenge are not available
<DD><CODE><A HREF="../../../../../org/apache/commons/httpclient/auth/AuthenticationException.html" title="class in org.apache.commons.httpclient.auth">AuthenticationException</A></CODE> - when a parsing or other error occurs<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/commons/httpclient/HttpState.html#setCredentials(java.lang.String, java.lang.String, org.apache.commons.httpclient.Credentials)"><CODE>HttpState.setCredentials(String,String,Credentials)</CODE></A></DL>
</DD>
</DL>
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