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| <div class="subTitle">org.apache.hadoop.security.authentication.server</div> |
| <h2 title="Interface AuthenticationHandler" class="title">Interface AuthenticationHandler</h2> |
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| <div class="description"> |
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| <dl> |
| <dt>All Known Subinterfaces:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/security/authentication/server/CompositeAuthenticationHandler.html" title="interface in org.apache.hadoop.security.authentication.server">CompositeAuthenticationHandler</a></dd> |
| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/security/authentication/server/AltKerberosAuthenticationHandler.html" title="class in org.apache.hadoop.security.authentication.server">AltKerberosAuthenticationHandler</a>, <a href="../../../../../../org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.html" title="class in org.apache.hadoop.security.authentication.server">JWTRedirectAuthenticationHandler</a>, <a href="../../../../../../org/apache/hadoop/security/authentication/server/KerberosAuthenticationHandler.html" title="class in org.apache.hadoop.security.authentication.server">KerberosAuthenticationHandler</a>, <a href="../../../../../../org/apache/hadoop/security/authentication/server/LdapAuthenticationHandler.html" title="class in org.apache.hadoop.security.authentication.server">LdapAuthenticationHandler</a>, <a href="../../../../../../org/apache/hadoop/security/authentication/server/MultiSchemeAuthenticationHandler.html" title="class in org.apache.hadoop.security.authentication.server">MultiSchemeAuthenticationHandler</a>, <a href="../../../../../../org/apache/hadoop/security/authentication/server/PseudoAuthenticationHandler.html" title="class in org.apache.hadoop.security.authentication.server">PseudoAuthenticationHandler</a></dd> |
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| <hr> |
| <br> |
| <pre>public interface <span class="typeNameLabel">AuthenticationHandler</span></pre> |
| <div class="block">Interface for server authentication mechanisms. |
| The <a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationFilter.html" title="class in org.apache.hadoop.security.authentication.server"><code>AuthenticationFilter</code></a> manages the lifecycle of the authentication handler. |
| Implementations must be thread-safe as one instance is initialized and used for all requests.</div> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
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| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationHandler.html#WWW_AUTHENTICATE">WWW_AUTHENTICATE</a></span></code> </td> |
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| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationToken.html" title="class in org.apache.hadoop.security.authentication.server">AuthenticationToken</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationHandler.html#authenticate-javax.servlet.http.HttpServletRequest-javax.servlet.http.HttpServletResponse-">authenticate</a></span>(javax.servlet.http.HttpServletRequest request, |
| javax.servlet.http.HttpServletResponse response)</code> |
| <div class="block">Performs an authentication step for the given HTTP client request.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationHandler.html#destroy--">destroy</a></span>()</code> |
| <div class="block">Destroys the authentication handler instance.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationHandler.html#getType--">getType</a></span>()</code> |
| <div class="block">Returns the authentication type of the authentication handler.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationHandler.html#init-java.util.Properties-">init</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> config)</code> |
| <div class="block">Initializes the authentication handler instance.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationHandler.html#managementOperation-org.apache.hadoop.security.authentication.server.AuthenticationToken-javax.servlet.http.HttpServletRequest-javax.servlet.http.HttpServletResponse-">managementOperation</a></span>(<a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationToken.html" title="class in org.apache.hadoop.security.authentication.server">AuthenticationToken</a> token, |
| javax.servlet.http.HttpServletRequest request, |
| javax.servlet.http.HttpServletResponse response)</code> |
| <div class="block">Performs an authentication management operation.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| </a> |
| <h3>Field Detail</h3> |
| <a name="WWW_AUTHENTICATE"> |
| <!-- --> |
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| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>WWW_AUTHENTICATE</h4> |
| <pre>static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> WWW_AUTHENTICATE</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.security.authentication.server.AuthenticationHandler.WWW_AUTHENTICATE">Constant Field Values</a></dd> |
| </dl> |
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| <h3>Method Detail</h3> |
| <a name="getType--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getType</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getType()</pre> |
| <div class="block">Returns the authentication type of the authentication handler. |
| This should be a name that uniquely identifies the authentication type. |
| For example 'simple' or 'kerberos'.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the authentication type of the authentication handler.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="init-java.util.Properties-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>init</h4> |
| <pre>void init(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a> config) |
| throws javax.servlet.ServletException</pre> |
| <div class="block">Initializes the authentication handler instance. |
| <p> |
| This method is invoked by the <a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationFilter.html#init-javax.servlet.FilterConfig-"><code>AuthenticationFilter.init(javax.servlet.FilterConfig)</code></a> method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>config</code> - configuration properties to initialize the handler.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>javax.servlet.ServletException</code> - thrown if the handler could not be initialized.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="destroy--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>destroy</h4> |
| <pre>void destroy()</pre> |
| <div class="block">Destroys the authentication handler instance. |
| <p> |
| This method is invoked by the <a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationFilter.html#destroy--"><code>AuthenticationFilter.destroy()</code></a> method.</div> |
| </li> |
| </ul> |
| <a name="managementOperation-org.apache.hadoop.security.authentication.server.AuthenticationToken-javax.servlet.http.HttpServletRequest-javax.servlet.http.HttpServletResponse-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>managementOperation</h4> |
| <pre>boolean managementOperation(<a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationToken.html" title="class in org.apache.hadoop.security.authentication.server">AuthenticationToken</a> token, |
| javax.servlet.http.HttpServletRequest request, |
| javax.servlet.http.HttpServletResponse response) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a>, |
| <a href="../../../../../../org/apache/hadoop/security/authentication/client/AuthenticationException.html" title="class in org.apache.hadoop.security.authentication.client">AuthenticationException</a></pre> |
| <div class="block">Performs an authentication management operation. |
| <p> |
| This is useful for handling operations like get/renew/cancel |
| delegation tokens which are being handled as operations of the |
| service end-point. |
| <p> |
| If the method returns <code>TRUE</code> the request will continue normal |
| processing, this means the method has not produced any HTTP response. |
| <p> |
| If the method returns <code>FALSE</code> the request will end, this means |
| the method has produced the corresponding HTTP response.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>token</code> - the authentication token if any, otherwise <code>NULL</code>.</dd> |
| <dd><code>request</code> - the HTTP client request.</dd> |
| <dd><code>response</code> - the HTTP client response.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>TRUE</code> if the request should be processed as a regular |
| request, |
| <code>FALSE</code> otherwise.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - thrown if an IO error occurred.</dd> |
| <dd><code><a href="../../../../../../org/apache/hadoop/security/authentication/client/AuthenticationException.html" title="class in org.apache.hadoop.security.authentication.client">AuthenticationException</a></code> - thrown if an Authentication error occurred.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="authenticate-javax.servlet.http.HttpServletRequest-javax.servlet.http.HttpServletResponse-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>authenticate</h4> |
| <pre><a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationToken.html" title="class in org.apache.hadoop.security.authentication.server">AuthenticationToken</a> authenticate(javax.servlet.http.HttpServletRequest request, |
| javax.servlet.http.HttpServletResponse response) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a>, |
| <a href="../../../../../../org/apache/hadoop/security/authentication/client/AuthenticationException.html" title="class in org.apache.hadoop.security.authentication.client">AuthenticationException</a></pre> |
| <div class="block">Performs an authentication step for the given HTTP client request. |
| <p> |
| This method is invoked by the <a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationFilter.html" title="class in org.apache.hadoop.security.authentication.server"><code>AuthenticationFilter</code></a> only if the HTTP client request is |
| not yet authenticated. |
| <p> |
| Depending upon the authentication mechanism being implemented, a particular HTTP client may |
| end up making a sequence of invocations before authentication is successfully established (this is |
| the case of Kerberos SPNEGO). |
| <p> |
| This method must return an <a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationToken.html" title="class in org.apache.hadoop.security.authentication.server"><code>AuthenticationToken</code></a> only if the the HTTP client request has |
| been successfully and fully authenticated. |
| <p> |
| If the HTTP client request has not been completely authenticated, this method must take over |
| the corresponding HTTP response and it must return <code>null</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>request</code> - the HTTP client request.</dd> |
| <dd><code>response</code> - the HTTP client response.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an <a href="../../../../../../org/apache/hadoop/security/authentication/server/AuthenticationToken.html" title="class in org.apache.hadoop.security.authentication.server"><code>AuthenticationToken</code></a> if the HTTP client request has been authenticated, |
| <code>null</code> otherwise (in this case it must take care of the response).</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - thrown if an IO error occurred.</dd> |
| <dd><code><a href="../../../../../../org/apache/hadoop/security/authentication/client/AuthenticationException.html" title="class in org.apache.hadoop.security.authentication.client">AuthenticationException</a></code> - thrown if an Authentication error occurred.</dd> |
| </dl> |
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