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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.eclipse.jetty.proxy</a></div>
<h2 title="Class AbstractProxyServlet" class="title">Class AbstractProxyServlet</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>javax.servlet.GenericServlet</li>
<li>
<ul class="inheritance">
<li>javax.servlet.http.HttpServlet</li>
<li>
<ul class="inheritance">
<li>org.eclipse.jetty.proxy.AbstractProxyServlet</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code>java.io.Serializable</code>, <code>javax.servlet.Servlet</code>, <code>javax.servlet.ServletConfig</code></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="AsyncMiddleManServlet.html" title="class in org.eclipse.jetty.proxy">AsyncMiddleManServlet</a></code>, <code><a href="ProxyServlet.html" title="class in org.eclipse.jetty.proxy">ProxyServlet</a></code></dd>
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<pre>public abstract class <span class="typeNameLabel">AbstractProxyServlet</span>
extends javax.servlet.http.HttpServlet</pre>
<div class="block"><p>Abstract base class for proxy servlets.</p>
<p>Forwards requests to another server either as a standard web reverse
proxy or as a transparent reverse proxy (as defined by RFC 7230).</p>
<p>To facilitate JMX monitoring, the <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a> instance is set
as ServletContext attribute, prefixed with this servlet's name and
exposed by the mechanism provided by
<code>ServletContext.setAttribute(String, Object)</code>.</p>
<p>The following init parameters may be used to configure the servlet:</p>
<ul>
<li>preserveHost - the host header specified by the client is forwarded to the server</li>
<li>hostHeader - forces the host header to a particular value</li>
<li>viaHost - the name to use in the Via header: Via: http/1.1 &lt;viaHost&gt;</li>
<li>whiteList - comma-separated list of allowed proxy hosts</li>
<li>blackList - comma-separated list of forbidden proxy hosts</li>
</ul>
<p>In addition, see <a href="#createHttpClient()"><code>createHttpClient()</code></a> for init parameters
used to configure the <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a> instance.</p>
<p>NOTE: By default the Host header sent to the server by this proxy
servlet is the server's host name. However, this breaks redirects.
Set <code>preserveHost</code> to <code>true</code> to make redirects working,
although this may break server's virtual host selection.</p>
<p>The default behavior of not preserving the Host header mimics
the default behavior of Apache httpd and Nginx, which both have
a way to be configured to preserve the Host header.</p></div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../serialized-form.html#org.eclipse.jetty.proxy.AbstractProxyServlet">Serialized Form</a></dd>
</dl>
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<td class="colFirst"><code>protected static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="AbstractProxyServlet.TransparentDelegate.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet.TransparentDelegate</a></span></code></th>
<td class="colLast">
<div class="block">Utility class that implement transparent proxy functionalities.</div>
</td>
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<th class="colSecond" scope="col">Field</th>
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<td class="colFirst"><code>protected <a href="../util/log/Logger.html" title="interface in org.eclipse.jetty.util.log">Logger</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#_log">_log</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>protected static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CLIENT_REQUEST_ATTRIBUTE">CLIENT_REQUEST_ATTRIBUTE</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected static java.util.Set&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#HOP_HEADERS">HOP_HEADERS</a></span></code></th>
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<th class="colFirst" scope="col">Constructor</th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">AbstractProxyServlet</a></span>()</code></th>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addProxyHeaders(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">addProxyHeaders</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addViaHeader(org.eclipse.jetty.client.api.Request)">addViaHeader</a></span>&#8203;(<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addXForwardedHeaders(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">addXForwardedHeaders</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clientRequestStatus(java.lang.Throwable)">clientRequestStatus</a></span>&#8203;(java.lang.Throwable&nbsp;failure)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#copyRequestHeaders(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">copyRequestHeaders</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client">HttpClient</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createHttpClient()">createHttpClient</a></span>()</code></th>
<td class="colLast">
<div class="block">Creates a <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a> instance, configured with init parameters of this servlet.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>protected <a href="../util/log/Logger.html" title="interface in org.eclipse.jetty.util.log">Logger</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createLogger()">createLogger</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#destroy()">destroy</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#expects100Continue(javax.servlet.http.HttpServletRequest)">expects100Continue</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;request)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>protected java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#filterServerResponseHeader(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Response,java.lang.String,java.lang.String)">filterServerResponseHeader</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse,
java.lang.String&nbsp;headerName,
java.lang.String&nbsp;headerValue)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>protected java.util.Set&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#findConnectionHeaders(javax.servlet.http.HttpServletRequest)">findConnectionHeaders</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>java.util.Set&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBlackListHosts()">getBlackListHosts</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHostHeader()">getHostHeader</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>protected <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client">HttpClient</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHttpClient()">getHttpClient</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>protected int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRequestId(javax.servlet.http.HttpServletRequest)">getRequestId</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTimeout()">getTimeout</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getViaHost()">getViaHost</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>java.util.Set&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getWhiteListHosts()">getWhiteListHosts</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasContent(javax.servlet.http.HttpServletRequest)">hasContent</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#init()">init</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>protected <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client">HttpClient</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#newHttpClient()">newHttpClient</a></span>()</code></th>
<td class="colLast">
<div class="block">The servlet init parameter 'selectors' can be set for the number of
selector threads to be used by the HttpClient.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>protected abstract <a href="../client/api/Response.CompleteListener.html" title="interface in org.eclipse.jetty.client.api">Response.CompleteListener</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#newProxyResponseListener(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)">newProxyResponseListener</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onClientRequestFailure(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request,javax.servlet.http.HttpServletResponse,java.lang.Throwable)">onClientRequestFailure</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
java.lang.Throwable&nbsp;failure)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onContinue(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">onContinue</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onProxyResponseFailure(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response,java.lang.Throwable)">onProxyResponseFailure</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse,
java.lang.Throwable&nbsp;failure)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onProxyResponseSuccess(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response)">onProxyResponseSuccess</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onProxyRewriteFailed(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)">onProxyRewriteFailed</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse)</code></th>
<td class="colLast">
<div class="block">Callback method invoked when the URI rewrite performed
in <a href="#rewriteTarget(javax.servlet.http.HttpServletRequest)"><code>rewriteTarget(HttpServletRequest)</code></a> returns null
indicating that no rewrite can be performed.</div>
</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onServerResponseHeaders(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response)">onServerResponseHeaders</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>protected int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#proxyResponseStatus(java.lang.Throwable)">proxyResponseStatus</a></span>&#8203;(java.lang.Throwable&nbsp;failure)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code>protected java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rewriteTarget(javax.servlet.http.HttpServletRequest)">rewriteTarget</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#sendProxyRequest(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Request)">sendProxyRequest</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#sendProxyResponseError(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,int)">sendProxyResponseError</a></span>&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
int&nbsp;status)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setTimeout(long)">setTimeout</a></span>&#8203;(long&nbsp;timeout)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateDestination(java.lang.String,int)">validateDestination</a></span>&#8203;(java.lang.String&nbsp;host,
int&nbsp;port)</code></th>
<td class="colLast">
<div class="block">Checks the given <code>host</code> and <code>port</code> against whitelist and blacklist.</div>
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</tr>
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<h3>Methods inherited from class&nbsp;javax.servlet.http.HttpServlet</h3>
<code>doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service</code></li>
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<h3>Methods inherited from class&nbsp;javax.servlet.GenericServlet</h3>
<code>getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log</code></li>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
</ul>
</li>
</ul>
</section>
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<a id="CLIENT_REQUEST_ATTRIBUTE">
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<h4>CLIENT_REQUEST_ATTRIBUTE</h4>
<pre>protected static final&nbsp;java.lang.String CLIENT_REQUEST_ATTRIBUTE</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.eclipse.jetty.proxy.AbstractProxyServlet.CLIENT_REQUEST_ATTRIBUTE">Constant Field Values</a></dd>
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<h4>HOP_HEADERS</h4>
<pre>protected static final&nbsp;java.util.Set&lt;java.lang.String&gt; HOP_HEADERS</pre>
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<pre>protected&nbsp;<a href="../util/log/Logger.html" title="interface in org.eclipse.jetty.util.log">Logger</a> _log</pre>
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<h4>AbstractProxyServlet</h4>
<pre>public&nbsp;AbstractProxyServlet()</pre>
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<h4>init</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;init()
throws javax.servlet.ServletException</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>init</code>&nbsp;in class&nbsp;<code>javax.servlet.GenericServlet</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>javax.servlet.ServletException</code></dd>
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<h4>destroy</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;destroy()</pre>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>destroy</code>&nbsp;in interface&nbsp;<code>javax.servlet.Servlet</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>destroy</code>&nbsp;in class&nbsp;<code>javax.servlet.GenericServlet</code></dd>
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<h4>getHostHeader</h4>
<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;getHostHeader()</pre>
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<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;getViaHost()</pre>
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<pre class="methodSignature">public&nbsp;long&nbsp;getTimeout()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;setTimeout&#8203;(long&nbsp;timeout)</pre>
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<pre class="methodSignature">public&nbsp;java.util.Set&lt;java.lang.String&gt;&nbsp;getWhiteListHosts()</pre>
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<pre class="methodSignature">public&nbsp;java.util.Set&lt;java.lang.String&gt;&nbsp;getBlackListHosts()</pre>
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<a id="createLogger()">
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<pre class="methodSignature">protected&nbsp;<a href="../util/log/Logger.html" title="interface in org.eclipse.jetty.util.log">Logger</a>&nbsp;createLogger()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a logger instance with a name derived from this servlet's name.</dd>
</dl>
</li>
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<a id="createHttpClient()">
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<h4>createHttpClient</h4>
<pre class="methodSignature">protected&nbsp;<a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client">HttpClient</a>&nbsp;createHttpClient()
throws javax.servlet.ServletException</pre>
<div class="block"><p>Creates a <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a> instance, configured with init parameters of this servlet.</p>
<p>The init parameters used to configure the <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a> instance are:</p>
<table>
<caption>Init Parameters</caption>
<thead>
<tr>
<th>init-param</th>
<th>default</th>
<th>description</th>
</tr>
</thead>
<tbody>
<tr>
<td>maxThreads</td>
<td>256</td>
<td>The max number of threads of HttpClient's Executor. If not set, or set to the value of "-", then the
Jetty server thread pool will be used.</td>
</tr>
<tr>
<td>maxConnections</td>
<td>32768</td>
<td>The max number of connections per destination, see <a href="../client/HttpClient.html#setMaxConnectionsPerDestination(int)"><code>HttpClient.setMaxConnectionsPerDestination(int)</code></a></td>
</tr>
<tr>
<td>idleTimeout</td>
<td>30000</td>
<td>The idle timeout in milliseconds, see <a href="../client/HttpClient.html#setIdleTimeout(long)"><code>HttpClient.setIdleTimeout(long)</code></a></td>
</tr>
<tr>
<td>timeout</td>
<td>60000</td>
<td>The total timeout in milliseconds, see <a href="../client/api/Request.html#timeout(long,java.util.concurrent.TimeUnit)"><code>Request.timeout(long, java.util.concurrent.TimeUnit)</code></a></td>
</tr>
<tr>
<td>requestBufferSize</td>
<td>HttpClient's default</td>
<td>The request buffer size, see <a href="../client/HttpClient.html#setRequestBufferSize(int)"><code>HttpClient.setRequestBufferSize(int)</code></a></td>
</tr>
<tr>
<td>responseBufferSize</td>
<td>HttpClient's default</td>
<td>The response buffer size, see <a href="../client/HttpClient.html#setResponseBufferSize(int)"><code>HttpClient.setResponseBufferSize(int)</code></a></td>
</tr>
<tr>
<td>selectors</td>
<td>cores / 2</td>
<td>The number of NIO selectors used by <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a></td>
</tr>
</tbody>
</table></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a> configured from the <code>servlet configuration</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>javax.servlet.ServletException</code> - if the <a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client"><code>HttpClient</code></a> cannot be created</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="#newHttpClient()"><code>newHttpClient()</code></a></dd>
</dl>
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<a id="newHttpClient()">
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<h4>newHttpClient</h4>
<pre class="methodSignature">protected&nbsp;<a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client">HttpClient</a>&nbsp;newHttpClient()</pre>
<div class="block">The servlet init parameter 'selectors' can be set for the number of
selector threads to be used by the HttpClient.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new HttpClient instance</dd>
</dl>
</li>
</ul>
<a id="getHttpClient()">
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<h4>getHttpClient</h4>
<pre class="methodSignature">protected&nbsp;<a href="../client/HttpClient.html" title="class in org.eclipse.jetty.client">HttpClient</a>&nbsp;getHttpClient()</pre>
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<h4>validateDestination</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;validateDestination&#8203;(java.lang.String&nbsp;host,
int&nbsp;port)</pre>
<div class="block">Checks the given <code>host</code> and <code>port</code> against whitelist and blacklist.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>host</code> - the host to check</dd>
<dd><code>port</code> - the port to check</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if it is allowed to be proxy to the given host and port</dd>
</dl>
</li>
</ul>
<a id="rewriteTarget(javax.servlet.http.HttpServletRequest)">
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</a>
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<h4>rewriteTarget</h4>
<pre class="methodSignature">protected&nbsp;java.lang.String&nbsp;rewriteTarget&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</pre>
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<h4>onProxyRewriteFailed</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;onProxyRewriteFailed&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse)</pre>
<div class="block"><p>Callback method invoked when the URI rewrite performed
in <a href="#rewriteTarget(javax.servlet.http.HttpServletRequest)"><code>rewriteTarget(HttpServletRequest)</code></a> returns null
indicating that no rewrite can be performed.</p>
<p>It is possible to use blocking API in this method,
like <code>HttpServletResponse.sendError(int)</code>.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>clientRequest</code> - the client request</dd>
<dd><code>proxyResponse</code> - the client response</dd>
</dl>
</li>
</ul>
<a id="hasContent(javax.servlet.http.HttpServletRequest)">
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<h4>hasContent</h4>
<pre class="methodSignature">protected&nbsp;boolean&nbsp;hasContent&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</pre>
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<a id="expects100Continue(javax.servlet.http.HttpServletRequest)">
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<pre class="methodSignature">protected&nbsp;boolean&nbsp;expects100Continue&#8203;(javax.servlet.http.HttpServletRequest&nbsp;request)</pre>
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<h4>copyRequestHeaders</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;copyRequestHeaders&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
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<h4>findConnectionHeaders</h4>
<pre class="methodSignature">protected&nbsp;java.util.Set&lt;java.lang.String&gt;&nbsp;findConnectionHeaders&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</pre>
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<h4>addProxyHeaders</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;addProxyHeaders&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</pre>
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<a id="addViaHeader(org.eclipse.jetty.client.api.Request)">
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<h4>addViaHeader</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;addViaHeader&#8203;(<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</pre>
</li>
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<h4>addXForwardedHeaders</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;addXForwardedHeaders&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</pre>
</li>
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<a id="sendProxyRequest(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Request)">
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<h4>sendProxyRequest</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;sendProxyRequest&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</pre>
</li>
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<a id="newProxyResponseListener(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)">
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<h4>newProxyResponseListener</h4>
<pre class="methodSignature">protected abstract&nbsp;<a href="../client/api/Response.CompleteListener.html" title="interface in org.eclipse.jetty.client.api">Response.CompleteListener</a>&nbsp;newProxyResponseListener&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse)</pre>
</li>
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<a id="onClientRequestFailure(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request,javax.servlet.http.HttpServletResponse,java.lang.Throwable)">
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<h4>onClientRequestFailure</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;onClientRequestFailure&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
java.lang.Throwable&nbsp;failure)</pre>
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<a id="clientRequestStatus(java.lang.Throwable)">
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<h4>clientRequestStatus</h4>
<pre class="methodSignature">protected&nbsp;int&nbsp;clientRequestStatus&#8203;(java.lang.Throwable&nbsp;failure)</pre>
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<a id="onServerResponseHeaders(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response)">
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<h4>onServerResponseHeaders</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;onServerResponseHeaders&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse)</pre>
</li>
</ul>
<a id="filterServerResponseHeader(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Response,java.lang.String,java.lang.String)">
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<ul class="blockList">
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<h4>filterServerResponseHeader</h4>
<pre class="methodSignature">protected&nbsp;java.lang.String&nbsp;filterServerResponseHeader&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse,
java.lang.String&nbsp;headerName,
java.lang.String&nbsp;headerValue)</pre>
</li>
</ul>
<a id="onProxyResponseSuccess(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response)">
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<h4>onProxyResponseSuccess</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;onProxyResponseSuccess&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse)</pre>
</li>
</ul>
<a id="onProxyResponseFailure(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response,java.lang.Throwable)">
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<pre class="methodSignature">protected&nbsp;void&nbsp;onProxyResponseFailure&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse,
java.lang.Throwable&nbsp;failure)</pre>
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<pre class="methodSignature">protected&nbsp;int&nbsp;proxyResponseStatus&#8203;(java.lang.Throwable&nbsp;failure)</pre>
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<a id="getRequestId(javax.servlet.http.HttpServletRequest)">
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<h4>getRequestId</h4>
<pre class="methodSignature">protected&nbsp;int&nbsp;getRequestId&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest)</pre>
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<pre class="methodSignature">protected&nbsp;void&nbsp;sendProxyResponseError&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
javax.servlet.http.HttpServletResponse&nbsp;proxyResponse,
int&nbsp;status)</pre>
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<a id="onContinue(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">
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<h4>onContinue</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;onContinue&#8203;(javax.servlet.http.HttpServletRequest&nbsp;clientRequest,
<a href="../client/api/Request.html" title="interface in org.eclipse.jetty.client.api">Request</a>&nbsp;proxyRequest)</pre>
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