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<div class="subTitle">org.apache.http.impl.auth</div>
<h2 title="Class KerberosScheme" class="title">Class KerberosScheme</h2>
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<li><a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html" title="class in org.apache.http.impl.auth">org.apache.http.impl.auth.AuthSchemeBase</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html" title="class in org.apache.http.impl.auth">org.apache.http.impl.auth.GGSSchemeBase</a></li>
<li>
<ul class="inheritance">
<li>org.apache.http.impl.auth.KerberosScheme</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../org/apache/http/auth/AuthScheme.html" title="interface in org.apache.http.auth">AuthScheme</a>, <a href="../../../../../org/apache/http/auth/ContextAwareAuthScheme.html" title="interface in org.apache.http.auth">ContextAwareAuthScheme</a></dd>
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<pre>public class <span class="strong">KerberosScheme</span>
extends <a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html" title="class in org.apache.http.impl.auth">GGSSchemeBase</a></pre>
<div class="block">KERBEROS authentication scheme.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>4.2</dd></dl>
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<h3>Fields inherited from class&nbsp;org.apache.http.impl.auth.<a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html" title="class in org.apache.http.impl.auth">AuthSchemeBase</a></h3>
<code><a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html#challengeState">challengeState</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#KerberosScheme()">KerberosScheme</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#KerberosScheme(boolean)">KerberosScheme</a></strong>(boolean&nbsp;stripPort)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#KerberosScheme(boolean,%20boolean)">KerberosScheme</a></strong>(boolean&nbsp;stripPort,
boolean&nbsp;useCanonicalHostname)</code>&nbsp;</td>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>org.apache.http.Header</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#authenticate(org.apache.http.auth.Credentials,%20org.apache.http.HttpRequest,%20org.apache.http.protocol.HttpContext)">authenticate</a></strong>(<a href="../../../../../org/apache/http/auth/Credentials.html" title="interface in org.apache.http.auth">Credentials</a>&nbsp;credentials,
org.apache.http.HttpRequest&nbsp;request,
org.apache.http.protocol.HttpContext&nbsp;context)</code>
<div class="block">Produces KERBEROS authorization Header based on token created by
processChallenge.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#generateToken(byte[],%20java.lang.String)">generateToken</a></strong>(byte[]&nbsp;input,
<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;authServer)</code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>protected byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#generateToken(byte[],%20java.lang.String,%20org.apache.http.auth.Credentials)">generateToken</a></strong>(byte[]&nbsp;input,
<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;authServer,
<a href="../../../../../org/apache/http/auth/Credentials.html" title="interface in org.apache.http.auth">Credentials</a>&nbsp;credentials)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#getParameter(java.lang.String)">getParameter</a></strong>(<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
<div class="block">There are no valid parameters for KERBEROS authentication so this
method always returns <code>null</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#getRealm()">getRealm</a></strong>()</code>
<div class="block">The concept of an authentication realm is not supported by the Negotiate
authentication scheme.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#getSchemeName()">getSchemeName</a></strong>()</code>
<div class="block">Returns textual designation of the given authentication scheme.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/http/impl/auth/KerberosScheme.html#isConnectionBased()">isConnectionBased</a></strong>()</code>
<div class="block">Returns <code>true</code>.</div>
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<h3>Methods inherited from class&nbsp;org.apache.http.impl.auth.<a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html" title="class in org.apache.http.impl.auth">GGSSchemeBase</a></h3>
<code><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#authenticate(org.apache.http.auth.Credentials,%20org.apache.http.HttpRequest)">authenticate</a>, <a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#generateGSSToken(byte[],%20org.ietf.jgss.Oid,%20java.lang.String)">generateGSSToken</a>, <a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#generateGSSToken(byte[],%20org.ietf.jgss.Oid,%20java.lang.String,%20org.apache.http.auth.Credentials)">generateGSSToken</a>, <a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#getManager()">getManager</a>, <a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#isComplete()">isComplete</a>, <a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#parseChallenge(org.apache.http.util.CharArrayBuffer,%20int,%20int)">parseChallenge</a></code></li>
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<h3>Methods inherited from class&nbsp;org.apache.http.impl.auth.<a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html" title="class in org.apache.http.impl.auth">AuthSchemeBase</a></h3>
<code><a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html#getChallengeState()">getChallengeState</a>, <a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html#isProxy()">isProxy</a>, <a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html#processChallenge(org.apache.http.Header)">processChallenge</a>, <a href="../../../../../org/apache/http/impl/auth/AuthSchemeBase.html#toString()">toString</a></code></li>
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<h4>KerberosScheme</h4>
<pre>public&nbsp;KerberosScheme(boolean&nbsp;stripPort,
boolean&nbsp;useCanonicalHostname)</pre>
<dl><dt><span class="strong">Since:</span></dt>
<dd>4.4</dd></dl>
</li>
</ul>
<a name="KerberosScheme(boolean)">
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<h4>KerberosScheme</h4>
<pre>public&nbsp;KerberosScheme(boolean&nbsp;stripPort)</pre>
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<h4>KerberosScheme</h4>
<pre>public&nbsp;KerberosScheme()</pre>
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<a name="getSchemeName()">
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<h4>getSchemeName</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getSchemeName()</pre>
<div class="block"><strong>Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/http/auth/AuthScheme.html#getSchemeName()">AuthScheme</a></code></strong></div>
<div class="block">Returns textual designation of the given authentication scheme.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the name of the given authentication scheme</dd></dl>
</li>
</ul>
<a name="authenticate(org.apache.http.auth.Credentials, org.apache.http.HttpRequest, org.apache.http.protocol.HttpContext)">
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<h4>authenticate</h4>
<pre>public&nbsp;org.apache.http.Header&nbsp;authenticate(<a href="../../../../../org/apache/http/auth/Credentials.html" title="interface in org.apache.http.auth">Credentials</a>&nbsp;credentials,
org.apache.http.HttpRequest&nbsp;request,
org.apache.http.protocol.HttpContext&nbsp;context)
throws <a href="../../../../../org/apache/http/auth/AuthenticationException.html" title="class in org.apache.http.auth">AuthenticationException</a></pre>
<div class="block">Produces KERBEROS authorization Header based on token created by
processChallenge.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/http/auth/ContextAwareAuthScheme.html#authenticate(org.apache.http.auth.Credentials,%20org.apache.http.HttpRequest,%20org.apache.http.protocol.HttpContext)">authenticate</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/http/auth/ContextAwareAuthScheme.html" title="interface in org.apache.http.auth">ContextAwareAuthScheme</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#authenticate(org.apache.http.auth.Credentials,%20org.apache.http.HttpRequest,%20org.apache.http.protocol.HttpContext)">authenticate</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html" title="class in org.apache.http.impl.auth">GGSSchemeBase</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>credentials</code> - not used by the KERBEROS scheme.</dd><dd><code>request</code> - The request being authenticated</dd><dd><code>context</code> - HTTP context</dd>
<dt><span class="strong">Returns:</span></dt><dd>KERBEROS authentication Header</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/http/auth/AuthenticationException.html" title="class in org.apache.http.auth">AuthenticationException</a></code> - if authentication string cannot
be generated due to an authentication failure</dd></dl>
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<h4>generateToken</h4>
<pre>protected&nbsp;byte[]&nbsp;generateToken(byte[]&nbsp;input,
<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;authServer)
throws <a href="https://docs.oracle.com/javase/6/docs/api/org/ietf/jgss/GSSException.html?is-external=true" title="class or interface in org.ietf.jgss">GSSException</a></pre>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#generateToken(byte[],%20java.lang.String)">generateToken</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html" title="class in org.apache.http.impl.auth">GGSSchemeBase</a></code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/6/docs/api/org/ietf/jgss/GSSException.html?is-external=true" title="class or interface in org.ietf.jgss">GSSException</a></code></dd></dl>
</li>
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<h4>generateToken</h4>
<pre>protected&nbsp;byte[]&nbsp;generateToken(byte[]&nbsp;input,
<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;authServer,
<a href="../../../../../org/apache/http/auth/Credentials.html" title="interface in org.apache.http.auth">Credentials</a>&nbsp;credentials)
throws <a href="https://docs.oracle.com/javase/6/docs/api/org/ietf/jgss/GSSException.html?is-external=true" title="class or interface in org.ietf.jgss">GSSException</a></pre>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html#generateToken(byte[],%20java.lang.String,%20org.apache.http.auth.Credentials)">generateToken</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/http/impl/auth/GGSSchemeBase.html" title="class in org.apache.http.impl.auth">GGSSchemeBase</a></code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/6/docs/api/org/ietf/jgss/GSSException.html?is-external=true" title="class or interface in org.ietf.jgss">GSSException</a></code></dd></dl>
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<a name="getParameter(java.lang.String)">
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<h4>getParameter</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getParameter(<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</pre>
<div class="block">There are no valid parameters for KERBEROS authentication so this
method always returns <code>null</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - The name of the parameter to be returned</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>null</code></dd></dl>
</li>
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<a name="getRealm()">
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<h4>getRealm</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getRealm()</pre>
<div class="block">The concept of an authentication realm is not supported by the Negotiate
authentication scheme. Always returns <code>null</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>null</code></dd></dl>
</li>
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<h4>isConnectionBased</h4>
<pre>public&nbsp;boolean&nbsp;isConnectionBased()</pre>
<div class="block">Returns <code>true</code>. KERBEROS authentication scheme is connection based.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code>.</dd></dl>
</li>
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