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From git-site-r...@apache.org
Subject [22/46] hbase-site git commit: Published site at edf60b965be903f205ec689b59c55229e0cb1dbf.
Date Tue, 12 Jun 2018 14:50:08 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/78d8c5d7/devapidocs/src-html/org/apache/hadoop/hbase/security/access/ShadedAccessControlUtil.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/security/access/ShadedAccessControlUtil.html b/devapidocs/src-html/org/apache/hadoop/hbase/security/access/ShadedAccessControlUtil.html
index fcf9979..b413e1d 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/security/access/ShadedAccessControlUtil.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/security/access/ShadedAccessControlUtil.html
@@ -282,7 +282,18 @@
 <span class="sourceLineNo">274</span>    }<a name="line.274"></a>
 <span class="sourceLineNo">275</span>    return builder.build();<a name="line.275"></a>
 <span class="sourceLineNo">276</span>  }<a name="line.276"></a>
-<span class="sourceLineNo">277</span>}<a name="line.277"></a>
+<span class="sourceLineNo">277</span><a name="line.277"></a>
+<span class="sourceLineNo">278</span>  /**<a name="line.278"></a>
+<span class="sourceLineNo">279</span>   * Converts a user permission proto to a client user permission object.<a name="line.279"></a>
+<span class="sourceLineNo">280</span>   *<a name="line.280"></a>
+<span class="sourceLineNo">281</span>   * @param proto the protobuf UserPermission<a name="line.281"></a>
+<span class="sourceLineNo">282</span>   * @return the converted UserPermission<a name="line.282"></a>
+<span class="sourceLineNo">283</span>   */<a name="line.283"></a>
+<span class="sourceLineNo">284</span>  public static UserPermission toUserPermission(org.apache.hadoop.hbase.shaded.protobuf.generated.AccessControlProtos.UserPermission proto) {<a name="line.284"></a>
+<span class="sourceLineNo">285</span>    return new UserPermission(proto.getUser().toByteArray(),<a name="line.285"></a>
+<span class="sourceLineNo">286</span>        toTablePermission(proto.getPermission()));<a name="line.286"></a>
+<span class="sourceLineNo">287</span>  }<a name="line.287"></a>
+<span class="sourceLineNo">288</span>}<a name="line.288"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/78d8c5d7/devapidocs/src-html/org/apache/hadoop/hbase/thrift/ThriftHttpServlet.HttpKerberosServerAction.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/thrift/ThriftHttpServlet.HttpKerberosServerAction.html b/devapidocs/src-html/org/apache/hadoop/hbase/thrift/ThriftHttpServlet.HttpKerberosServerAction.html
index b479b6b..c5277a9 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/thrift/ThriftHttpServlet.HttpKerberosServerAction.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/thrift/ThriftHttpServlet.HttpKerberosServerAction.html
@@ -6,7 +6,7 @@
 </head>
 <body>
 <div class="sourceContainer">
-<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
+<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
 <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
 <span class="sourceLineNo">003</span> * or more contributor license agreements.  See the NOTICE file<a name="line.3"></a>
 <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
@@ -26,224 +26,252 @@
 <span class="sourceLineNo">018</span><a name="line.18"></a>
 <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.thrift;<a name="line.19"></a>
 <span class="sourceLineNo">020</span><a name="line.20"></a>
-<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.security.PrivilegedExceptionAction;<a name="line.22"></a>
+<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.thrift.ThriftServerRunner.THRIFT_SPNEGO_KEYTAB_FILE_KEY;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static org.apache.hadoop.hbase.thrift.ThriftServerRunner.THRIFT_SPNEGO_PRINCIPAL_KEY;<a name="line.22"></a>
 <span class="sourceLineNo">023</span><a name="line.23"></a>
-<span class="sourceLineNo">024</span>import javax.servlet.ServletException;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import javax.servlet.http.HttpServletRequest;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import javax.servlet.http.HttpServletResponse;<a name="line.26"></a>
-<span class="sourceLineNo">027</span><a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.conf.Configuration;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.security.SecurityUtil;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.util.Base64;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.security.authorize.AuthorizationException;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.security.authorize.ProxyUsers;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.thrift.TProcessor;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.thrift.protocol.TProtocolFactory;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.thrift.server.TServlet;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.ietf.jgss.GSSContext;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.ietf.jgss.GSSCredential;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.ietf.jgss.GSSException;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.ietf.jgss.GSSManager;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.ietf.jgss.GSSName;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.ietf.jgss.Oid;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.slf4j.Logger;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.slf4j.LoggerFactory;<a name="line.45"></a>
-<span class="sourceLineNo">046</span><a name="line.46"></a>
-<span class="sourceLineNo">047</span>/**<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * Thrift Http Servlet is used for performing Kerberos authentication if security is enabled and<a name="line.48"></a>
-<span class="sourceLineNo">049</span> * also used for setting the user specified in "doAs" parameter.<a name="line.49"></a>
-<span class="sourceLineNo">050</span> */<a name="line.50"></a>
-<span class="sourceLineNo">051</span>@InterfaceAudience.Private<a name="line.51"></a>
-<span class="sourceLineNo">052</span>public class ThriftHttpServlet extends TServlet {<a name="line.52"></a>
-<span class="sourceLineNo">053</span>  private static final long serialVersionUID = 1L;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>  private static final Logger LOG = LoggerFactory.getLogger(ThriftHttpServlet.class.getName());<a name="line.54"></a>
-<span class="sourceLineNo">055</span>  private transient final UserGroupInformation realUser;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>  private transient final Configuration conf;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>  private final boolean securityEnabled;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>  private final boolean doAsEnabled;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>  private transient ThriftServerRunner.HBaseHandler hbaseHandler;<a name="line.59"></a>
-<span class="sourceLineNo">060</span><a name="line.60"></a>
-<span class="sourceLineNo">061</span>  // HTTP Header related constants.<a name="line.61"></a>
-<span class="sourceLineNo">062</span>  public static final String WWW_AUTHENTICATE = "WWW-Authenticate";<a name="line.62"></a>
-<span class="sourceLineNo">063</span>  public static final String AUTHORIZATION = "Authorization";<a name="line.63"></a>
-<span class="sourceLineNo">064</span>  public static final String NEGOTIATE = "Negotiate";<a name="line.64"></a>
-<span class="sourceLineNo">065</span><a name="line.65"></a>
-<span class="sourceLineNo">066</span>  public ThriftHttpServlet(TProcessor processor, TProtocolFactory protocolFactory,<a name="line.66"></a>
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-<span class="sourceLineNo">069</span>    super(processor, protocolFactory);<a name="line.69"></a>
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-<span class="sourceLineNo">074</span>    this.doAsEnabled = doAsEnabled;<a name="line.74"></a>
-<span class="sourceLineNo">075</span>  }<a name="line.75"></a>
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-<span class="sourceLineNo">078</span>  protected void doPost(HttpServletRequest request, HttpServletResponse response)<a name="line.78"></a>
-<span class="sourceLineNo">079</span>      throws ServletException, IOException {<a name="line.79"></a>
-<span class="sourceLineNo">080</span>    String effectiveUser = request.getRemoteUser();<a name="line.80"></a>
-<span class="sourceLineNo">081</span>    if (securityEnabled) {<a name="line.81"></a>
-<span class="sourceLineNo">082</span>      try {<a name="line.82"></a>
-<span class="sourceLineNo">083</span>        // As Thrift HTTP transport doesn't support SPNEGO yet (THRIFT-889),<a name="line.83"></a>
-<span class="sourceLineNo">084</span>        // Kerberos authentication is being done at servlet level.<a name="line.84"></a>
-<span class="sourceLineNo">085</span>        final RemoteUserIdentity identity = doKerberosAuth(request);<a name="line.85"></a>
-<span class="sourceLineNo">086</span>        effectiveUser = identity.principal;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>        // It is standard for client applications expect this header.<a name="line.87"></a>
-<span class="sourceLineNo">088</span>        // Please see http://tools.ietf.org/html/rfc4559 for more details.<a name="line.88"></a>
-<span class="sourceLineNo">089</span>        response.addHeader(WWW_AUTHENTICATE,  NEGOTIATE + " " + identity.outToken);<a name="line.89"></a>
-<span class="sourceLineNo">090</span>      } catch (HttpAuthenticationException e) {<a name="line.90"></a>
-<span class="sourceLineNo">091</span>        LOG.error("Kerberos Authentication failed", e);<a name="line.91"></a>
-<span class="sourceLineNo">092</span>        // Send a 401 to the client<a name="line.92"></a>
-<span class="sourceLineNo">093</span>        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);<a name="line.93"></a>
-<span class="sourceLineNo">094</span>        response.addHeader(WWW_AUTHENTICATE, NEGOTIATE);<a name="line.94"></a>
-<span class="sourceLineNo">095</span>        response.getWriter().println("Authentication Error: " + e.getMessage());<a name="line.95"></a>
-<span class="sourceLineNo">096</span>        return;<a name="line.96"></a>
-<span class="sourceLineNo">097</span>      }<a name="line.97"></a>
-<span class="sourceLineNo">098</span>    }<a name="line.98"></a>
-<span class="sourceLineNo">099</span>    String doAsUserFromQuery = request.getHeader("doAs");<a name="line.99"></a>
-<span class="sourceLineNo">100</span>    if(effectiveUser == null) {<a name="line.100"></a>
-<span class="sourceLineNo">101</span>      effectiveUser = realUser.getShortUserName();<a name="line.101"></a>
-<span class="sourceLineNo">102</span>    }<a name="line.102"></a>
-<span class="sourceLineNo">103</span>    if (doAsUserFromQuery != null) {<a name="line.103"></a>
-<span class="sourceLineNo">104</span>      if (!doAsEnabled) {<a name="line.104"></a>
-<span class="sourceLineNo">105</span>        throw new ServletException("Support for proxyuser is not configured");<a name="line.105"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.security.PrivilegedExceptionAction;<a name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import javax.servlet.ServletException;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import javax.servlet.http.HttpServletRequest;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import javax.servlet.http.HttpServletResponse;<a name="line.29"></a>
+<span class="sourceLineNo">030</span><a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.conf.Configuration;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.security.SecurityUtil;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Base64;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.security.authorize.AuthorizationException;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.security.authorize.ProxyUsers;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.http.HttpHeaders;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.thrift.TProcessor;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.thrift.protocol.TProtocolFactory;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.thrift.server.TServlet;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.ietf.jgss.GSSContext;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.ietf.jgss.GSSCredential;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.ietf.jgss.GSSException;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.ietf.jgss.GSSManager;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.ietf.jgss.GSSName;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.ietf.jgss.Oid;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.slf4j.Logger;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.slf4j.LoggerFactory;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>/**<a name="line.51"></a>
+<span class="sourceLineNo">052</span> * Thrift Http Servlet is used for performing Kerberos authentication if security is enabled and<a name="line.52"></a>
+<span class="sourceLineNo">053</span> * also used for setting the user specified in "doAs" parameter.<a name="line.53"></a>
+<span class="sourceLineNo">054</span> */<a name="line.54"></a>
+<span class="sourceLineNo">055</span>@InterfaceAudience.Private<a name="line.55"></a>
+<span class="sourceLineNo">056</span>public class ThriftHttpServlet extends TServlet {<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  private static final long serialVersionUID = 1L;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>  private static final Logger LOG = LoggerFactory.getLogger(ThriftHttpServlet.class.getName());<a name="line.58"></a>
+<span class="sourceLineNo">059</span>  private final transient UserGroupInformation serviceUGI;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>  private final transient UserGroupInformation httpUGI;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>  private final transient ThriftServerRunner.HBaseHandler hbaseHandler;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>  private final boolean doAsEnabled;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>  private final boolean securityEnabled;<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span>  // HTTP Header related constants.<a name="line.65"></a>
+<span class="sourceLineNo">066</span>  public static final String NEGOTIATE = "Negotiate";<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span>  public ThriftHttpServlet(TProcessor processor, TProtocolFactory protocolFactory,<a name="line.68"></a>
+<span class="sourceLineNo">069</span>      UserGroupInformation serviceUGI, Configuration conf,<a name="line.69"></a>
+<span class="sourceLineNo">070</span>      ThriftServerRunner.HBaseHandler hbaseHandler, boolean securityEnabled, boolean doAsEnabled)<a name="line.70"></a>
+<span class="sourceLineNo">071</span>      throws IOException {<a name="line.71"></a>
+<span class="sourceLineNo">072</span>    super(processor, protocolFactory);<a name="line.72"></a>
+<span class="sourceLineNo">073</span>    this.serviceUGI = serviceUGI;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>    this.hbaseHandler = hbaseHandler;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>    this.securityEnabled = securityEnabled;<a name="line.75"></a>
+<span class="sourceLineNo">076</span>    this.doAsEnabled = doAsEnabled;<a name="line.76"></a>
+<span class="sourceLineNo">077</span><a name="line.77"></a>
+<span class="sourceLineNo">078</span>    if (securityEnabled) {<a name="line.78"></a>
+<span class="sourceLineNo">079</span>      // login the spnego principal<a name="line.79"></a>
+<span class="sourceLineNo">080</span>      UserGroupInformation.setConfiguration(conf);<a name="line.80"></a>
+<span class="sourceLineNo">081</span>      this.httpUGI = UserGroupInformation.loginUserFromKeytabAndReturnUGI(<a name="line.81"></a>
+<span class="sourceLineNo">082</span>          conf.get(THRIFT_SPNEGO_PRINCIPAL_KEY),<a name="line.82"></a>
+<span class="sourceLineNo">083</span>          conf.get(THRIFT_SPNEGO_KEYTAB_FILE_KEY)<a name="line.83"></a>
+<span class="sourceLineNo">084</span>      );<a name="line.84"></a>
+<span class="sourceLineNo">085</span>    } else {<a name="line.85"></a>
+<span class="sourceLineNo">086</span>      this.httpUGI = null;<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    }<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  }<a name="line.88"></a>
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+<span class="sourceLineNo">090</span>  @Override<a name="line.90"></a>
+<span class="sourceLineNo">091</span>  protected void doPost(HttpServletRequest request, HttpServletResponse response)<a name="line.91"></a>
+<span class="sourceLineNo">092</span>      throws ServletException, IOException {<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    String effectiveUser = request.getRemoteUser();<a name="line.93"></a>
+<span class="sourceLineNo">094</span>    if (securityEnabled) {<a name="line.94"></a>
+<span class="sourceLineNo">095</span>      /*<a name="line.95"></a>
+<span class="sourceLineNo">096</span>      Check that the AUTHORIZATION header has any content. If it does not then return a 401<a name="line.96"></a>
+<span class="sourceLineNo">097</span>      requesting AUTHORIZATION header to be sent. This is typical where the first request doesn't<a name="line.97"></a>
+<span class="sourceLineNo">098</span>      send the AUTHORIZATION header initially.<a name="line.98"></a>
+<span class="sourceLineNo">099</span>       */<a name="line.99"></a>
+<span class="sourceLineNo">100</span>      String authHeader = request.getHeader(HttpHeaders.AUTHORIZATION);<a name="line.100"></a>
+<span class="sourceLineNo">101</span>      if (authHeader == null || authHeader.isEmpty()) {<a name="line.101"></a>
+<span class="sourceLineNo">102</span>        // Send a 401 to the client<a name="line.102"></a>
+<span class="sourceLineNo">103</span>        response.addHeader(HttpHeaders.WWW_AUTHENTICATE, NEGOTIATE);<a name="line.103"></a>
+<span class="sourceLineNo">104</span>        response.sendError(HttpServletResponse.SC_UNAUTHORIZED);<a name="line.104"></a>
+<span class="sourceLineNo">105</span>        return;<a name="line.105"></a>
 <span class="sourceLineNo">106</span>      }<a name="line.106"></a>
-<span class="sourceLineNo">107</span>      // The authenticated remote user is attempting to perform 'doAs' proxy user.<a name="line.107"></a>
-<span class="sourceLineNo">108</span>      UserGroupInformation remoteUser = UserGroupInformation.createRemoteUser(effectiveUser);<a name="line.108"></a>
-<span class="sourceLineNo">109</span>      // create and attempt to authorize a proxy user (the client is attempting<a name="line.109"></a>
-<span class="sourceLineNo">110</span>      // to do proxy user)<a name="line.110"></a>
-<span class="sourceLineNo">111</span>      UserGroupInformation ugi = UserGroupInformation.createProxyUser(doAsUserFromQuery,<a name="line.111"></a>
-<span class="sourceLineNo">112</span>          remoteUser);<a name="line.112"></a>
-<span class="sourceLineNo">113</span>      // validate the proxy user authorization<a name="line.113"></a>
-<span class="sourceLineNo">114</span>      try {<a name="line.114"></a>
-<span class="sourceLineNo">115</span>        ProxyUsers.authorize(ugi, request.getRemoteAddr(), conf);<a name="line.115"></a>
-<span class="sourceLineNo">116</span>      } catch (AuthorizationException e) {<a name="line.116"></a>
-<span class="sourceLineNo">117</span>        throw new ServletException(e.getMessage());<a name="line.117"></a>
-<span class="sourceLineNo">118</span>      }<a name="line.118"></a>
-<span class="sourceLineNo">119</span>      effectiveUser = doAsUserFromQuery;<a name="line.119"></a>
-<span class="sourceLineNo">120</span>    }<a name="line.120"></a>
-<span class="sourceLineNo">121</span>    hbaseHandler.setEffectiveUser(effectiveUser);<a name="line.121"></a>
-<span class="sourceLineNo">122</span>    super.doPost(request, response);<a name="line.122"></a>
-<span class="sourceLineNo">123</span>  }<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span>  /**<a name="line.125"></a>
-<span class="sourceLineNo">126</span>   * Do the GSS-API kerberos authentication.<a name="line.126"></a>
-<span class="sourceLineNo">127</span>   * We already have a logged in subject in the form of serviceUGI,<a name="line.127"></a>
-<span class="sourceLineNo">128</span>   * which GSS-API will extract information from.<a name="line.128"></a>
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+<span class="sourceLineNo">229</span>      } catch (GSSException e) {<a name="line.229"></a>
+<span class="sourceLineNo">230</span>        throw new HttpAuthenticationException("Kerberos authentication failed: ", e);<a name="line.230"></a>
+<span class="sourceLineNo">231</span>      } finally {<a name="line.231"></a>
+<span class="sourceLineNo">232</span>        if (gssContext != null) {<a name="line.232"></a>
+<span class="sourceLineNo">233</span>          try {<a name="line.233"></a>
+<span class="sourceLineNo">234</span>            gssContext.dispose();<a name="line.234"></a>
+<span class="sourceLineNo">235</span>          } catch (GSSException e) {<a name="line.235"></a>
+<span class="sourceLineNo">236</span>            LOG.warn("Error while disposing GSS Context", e);<a name="line.236"></a>
+<span class="sourceLineNo">237</span>          }<a name="line.237"></a>
+<span class="sourceLineNo">238</span>        }<a name="line.238"></a>
+<span class="sourceLineNo">239</span>      }<a name="line.239"></a>
+<span class="sourceLineNo">240</span>    }<a name="line.240"></a>
+<span class="sourceLineNo">241</span><a name="line.241"></a>
+<span class="sourceLineNo">242</span>    /**<a name="line.242"></a>
+<span class="sourceLineNo">243</span>     * Returns the base64 encoded auth header payload<a name="line.243"></a>
+<span class="sourceLineNo">244</span>     *<a name="line.244"></a>
+<span class="sourceLineNo">245</span>     * @throws HttpAuthenticationException if a remote or network exception occurs<a name="line.245"></a>
+<span class="sourceLineNo">246</span>     */<a name="line.246"></a>
+<span class="sourceLineNo">247</span>    private String getAuthHeader(HttpServletRequest request)<a name="line.247"></a>
+<span class="sourceLineNo">248</span>        throws HttpAuthenticationException {<a name="line.248"></a>
+<span class="sourceLineNo">249</span>      String authHeader = request.getHeader(HttpHeaders.AUTHORIZATION);<a name="line.249"></a>
+<span class="sourceLineNo">250</span>      // Each http request must have an Authorization header<a name="line.250"></a>
+<span class="sourceLineNo">251</span>      if (authHeader == null || authHeader.isEmpty()) {<a name="line.251"></a>
+<span class="sourceLineNo">252</span>        throw new HttpAuthenticationException("Authorization header received " +<a name="line.252"></a>
+<span class="sourceLineNo">253</span>            "from the client is empty.");<a name="line.253"></a>
+<span class="sourceLineNo">254</span>      }<a name="line.254"></a>
+<span class="sourceLineNo">255</span>      String authHeaderBase64String;<a name="line.255"></a>
+<span class="sourceLineNo">256</span>      int beginIndex = (NEGOTIATE + " ").length();<a name="line.256"></a>
+<span class="sourceLineNo">257</span>      authHeaderBase64String = authHeader.substring(beginIndex);<a name="line.257"></a>
+<span class="sourceLineNo">258</span>      // Authorization header must have a payload<a name="line.258"></a>
+<span class="sourceLineNo">259</span>      if (authHeaderBase64String.isEmpty()) {<a name="line.259"></a>
+<span class="sourceLineNo">260</span>        throw new HttpAuthenticationException("Authorization header received " +<a name="line.260"></a>
+<span class="sourceLineNo">261</span>            "from the client does not contain any data.");<a name="line.261"></a>
+<span class="sourceLineNo">262</span>      }<a name="line.262"></a>
+<span class="sourceLineNo">263</span>      return authHeaderBase64String;<a name="line.263"></a>
+<span class="sourceLineNo">264</span>    }<a name="line.264"></a>
+<span class="sourceLineNo">265</span>  }<a name="line.265"></a>
+<span class="sourceLineNo">266</span>}<a name="line.266"></a>
 
 
 


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