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372 lines
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<title>AuthScheme (Apache HttpComponents Client 4.5.14 API)</title>
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<!-- ======== START OF CLASS DATA ======== -->
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<div class="header">
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<div class="subTitle">org.apache.http.auth</div>
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<h2 title="Interface AuthScheme" class="title">Interface AuthScheme</h2>
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<dl>
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<dt>All Known Subinterfaces:</dt>
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<dd><a href="../../../../org/apache/http/auth/ContextAwareAuthScheme.html" title="interface in org.apache.http.auth">ContextAwareAuthScheme</a></dd>
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</dl>
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<dl>
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<dt>All Known Implementing Classes:</dt>
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<dd><a href="../../../../org/apache/http/impl/auth/AuthSchemeBase.html" title="class in org.apache.http.impl.auth">AuthSchemeBase</a>, <a href="../../../../org/apache/http/impl/auth/BasicScheme.html" title="class in org.apache.http.impl.auth">BasicScheme</a>, <a href="../../../../org/apache/http/impl/auth/DigestScheme.html" title="class in org.apache.http.impl.auth">DigestScheme</a>, <a href="../../../../org/apache/http/impl/auth/GGSSchemeBase.html" title="class in org.apache.http.impl.auth">GGSSchemeBase</a>, <a href="../../../../org/apache/http/impl/auth/KerberosScheme.html" title="class in org.apache.http.impl.auth">KerberosScheme</a>, <a href="../../../../org/apache/http/impl/auth/NegotiateScheme.html" title="class in org.apache.http.impl.auth">NegotiateScheme</a>, <a href="../../../../org/apache/http/impl/auth/NTLMScheme.html" title="class in org.apache.http.impl.auth">NTLMScheme</a>, <a href="../../../../org/apache/http/impl/auth/RFC2617Scheme.html" title="class in org.apache.http.impl.auth">RFC2617Scheme</a>, <a href="../../../../org/apache/http/impl/auth/SPNegoScheme.html" title="class in org.apache.http.impl.auth">SPNegoScheme</a>, <a href="../../../../org/apache/http/impl/auth/win/WindowsNegotiateScheme.html" title="class in org.apache.http.impl.auth.win">WindowsNegotiateScheme</a></dd>
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</dl>
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<hr>
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<br>
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<pre>public interface <span class="strong">AuthScheme</span></pre>
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<div class="block">This interface represents an abstract challenge-response oriented
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authentication scheme.
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<p>
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An authentication scheme should be able to support the following
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functions:
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<ul>
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<li>Parse and process the challenge sent by the target server
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in response to request for a protected resource
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<li>Provide its textual designation
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<li>Provide its parameters, if available
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<li>Provide the realm this authentication scheme is applicable to,
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if available
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<li>Generate authorization string for the given set of credentials
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and the HTTP request in response to the authorization challenge.
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</ul>
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<p>
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Authentication schemes may be stateful involving a series of
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challenge-response exchanges.
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<p>
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IMPORTANT: implementations of this interface MUST also implement <a href="../../../../org/apache/http/auth/ContextAwareAuthScheme.html" title="interface in org.apache.http.auth"><code>ContextAwareAuthScheme</code></a>
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interface in order to remain API compatible with newer versions of HttpClient.</div>
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<dl><dt><span class="strong">Since:</span></dt>
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<dd>4.0</dd></dl>
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</li>
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<h3>Method Summary</h3>
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<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor">
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<td class="colFirst"><code>org.apache.http.Header</code></td>
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<td class="colLast"><code><strong><a href="../../../../org/apache/http/auth/AuthScheme.html#authenticate(org.apache.http.auth.Credentials,%20org.apache.http.HttpRequest)">authenticate</a></strong>(<a href="../../../../org/apache/http/auth/Credentials.html" title="interface in org.apache.http.auth">Credentials</a> credentials,
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org.apache.http.HttpRequest request)</code>
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<div class="block"><strong>Deprecated.</strong>
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<div class="block"><i>(4.1) Use <a href="../../../../org/apache/http/auth/ContextAwareAuthScheme.html#authenticate(org.apache.http.auth.Credentials,%20org.apache.http.HttpRequest,%20org.apache.http.protocol.HttpContext)"><code>ContextAwareAuthScheme.authenticate(Credentials, HttpRequest, org.apache.http.protocol.HttpContext)</code></a></i></div>
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</div>
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</td>
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</tr>
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<tr class="rowColor">
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<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>
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<td class="colLast"><code><strong><a href="../../../../org/apache/http/auth/AuthScheme.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> name)</code>
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<div class="block">Returns authentication parameter with the given name, if available.</div>
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</td>
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</tr>
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<tr class="altColor">
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<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>
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<td class="colLast"><code><strong><a href="../../../../org/apache/http/auth/AuthScheme.html#getRealm()">getRealm</a></strong>()</code>
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<div class="block">Returns authentication realm.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<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>
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<td class="colLast"><code><strong><a href="../../../../org/apache/http/auth/AuthScheme.html#getSchemeName()">getSchemeName</a></strong>()</code>
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<div class="block">Returns textual designation of the given authentication scheme.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><strong><a href="../../../../org/apache/http/auth/AuthScheme.html#isComplete()">isComplete</a></strong>()</code>
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<div class="block">Authentication process may involve a series of challenge-response exchanges.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><strong><a href="../../../../org/apache/http/auth/AuthScheme.html#isConnectionBased()">isConnectionBased</a></strong>()</code>
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<div class="block">Tests if the authentication scheme is provides authorization on a per
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connection basis instead of usual per request basis</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><strong><a href="../../../../org/apache/http/auth/AuthScheme.html#processChallenge(org.apache.http.Header)">processChallenge</a></strong>(org.apache.http.Header header)</code>
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<div class="block">Processes the given challenge token.</div>
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</td>
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</tr>
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</table>
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</li>
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</ul>
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</li>
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</ul>
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</div>
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<div class="details">
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<ul class="blockList">
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<li class="blockList">
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method_detail">
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<!-- -->
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</a>
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<h3>Method Detail</h3>
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<a name="processChallenge(org.apache.http.Header)">
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<h4>processChallenge</h4>
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<pre>void processChallenge(org.apache.http.Header header)
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throws <a href="../../../../org/apache/http/auth/MalformedChallengeException.html" title="class in org.apache.http.auth">MalformedChallengeException</a></pre>
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<div class="block">Processes the given challenge token. Some authentication schemes
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may involve multiple challenge-response exchanges. Such schemes must be able
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to maintain the state information when dealing with sequential challenges</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>header</code> - the challenge header</dd>
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<dt><span class="strong">Throws:</span></dt>
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<dd><code><a href="../../../../org/apache/http/auth/MalformedChallengeException.html" title="class in org.apache.http.auth">MalformedChallengeException</a></code></dd></dl>
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</li>
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</ul>
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<a name="getSchemeName()">
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<h4>getSchemeName</h4>
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<pre><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> getSchemeName()</pre>
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<div class="block">Returns textual designation of the given authentication scheme.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>the name of the given authentication scheme</dd></dl>
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</li>
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</ul>
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<a name="getParameter(java.lang.String)">
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<h4>getParameter</h4>
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<pre><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> 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> name)</pre>
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<div class="block">Returns authentication parameter with the given name, if available.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - The name of the parameter to be returned</dd>
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<dt><span class="strong">Returns:</span></dt><dd>the parameter with the given name</dd></dl>
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</li>
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</ul>
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<a name="getRealm()">
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<!-- -->
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</a>
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<ul class="blockList">
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<h4>getRealm</h4>
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<pre><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> getRealm()</pre>
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<div class="block">Returns authentication realm. If the concept of an authentication
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realm is not applicable to the given authentication scheme, returns
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<code>null</code>.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>the authentication realm</dd></dl>
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</li>
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</ul>
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<a name="isConnectionBased()">
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</a>
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<ul class="blockList">
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<li class="blockList">
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<h4>isConnectionBased</h4>
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<pre>boolean isConnectionBased()</pre>
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<div class="block">Tests if the authentication scheme is provides authorization on a per
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connection basis instead of usual per request basis</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the scheme is connection based, <code>false</code>
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if the scheme is request based.</dd></dl>
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</li>
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</ul>
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<a name="isComplete()">
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</a>
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<ul class="blockList">
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<h4>isComplete</h4>
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<pre>boolean isComplete()</pre>
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<div class="block">Authentication process may involve a series of challenge-response exchanges.
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This method tests if the authorization process has been completed, either
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successfully or unsuccessfully, that is, all the required authorization
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challenges have been processed in their entirety.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the authentication process has been completed,
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<code>false</code> otherwise.</dd></dl>
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</li>
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</ul>
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<a name="authenticate(org.apache.http.auth.Credentials, org.apache.http.HttpRequest)">
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</a>
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<ul class="blockListLast">
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<h4>authenticate</h4>
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<pre><a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
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org.apache.http.Header authenticate(<a href="../../../../org/apache/http/auth/Credentials.html" title="interface in org.apache.http.auth">Credentials</a> credentials,
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org.apache.http.HttpRequest request)
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throws <a href="../../../../org/apache/http/auth/AuthenticationException.html" title="class in org.apache.http.auth">AuthenticationException</a></pre>
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<div class="block"><span class="strong">Deprecated.</span> <i>(4.1) Use <a href="../../../../org/apache/http/auth/ContextAwareAuthScheme.html#authenticate(org.apache.http.auth.Credentials,%20org.apache.http.HttpRequest,%20org.apache.http.protocol.HttpContext)"><code>ContextAwareAuthScheme.authenticate(Credentials, HttpRequest, org.apache.http.protocol.HttpContext)</code></a></i></div>
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<div class="block">Produces an authorization string for the given set of <a href="../../../../org/apache/http/auth/Credentials.html" title="interface in org.apache.http.auth"><code>Credentials</code></a>.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>credentials</code> - The set of credentials to be used for athentication</dd><dd><code>request</code> - The request being authenticated</dd>
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<dt><span class="strong">Returns:</span></dt><dd>the authorization string</dd>
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<dt><span class="strong">Throws:</span></dt>
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<dd><code><a href="../../../../org/apache/http/auth/AuthenticationException.html" title="class in org.apache.http.auth">AuthenticationException</a></code> - if authorization string cannot
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be generated due to an authentication failure</dd></dl>
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</li>
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</ul>
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</li>
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</ul>
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</li>
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</ul>
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</div>
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</div>
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