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<html lang="en"><head><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><link href="../images/docs-stylesheet.css" rel="stylesheet" type="text/css"><title>Apache Tomcat 8 Configuration Reference (8.5.97) - The Cookie Processor Component</title></head><body><div id="wrapper"><header><div id="header"><div><div><div class="logo noPrint"><a href="https://tomcat.apache.org/"><img alt="Tomcat Home" src="../images/tomcat.png"></a></div><div style="height: 1px;"></div><div class="asfLogo noPrint"><a href="https://www.apache.org/" target="_blank"><img src="../images/asf-logo.svg" alt="The Apache Software Foundation" style="width: 266px; height: 83px;"></a></div><h1>Apache Tomcat 8 Configuration Reference</h1><div class="versionInfo">
Version 8.5.97,
<time datetime="2023-12-07">Dec 7 2023</time></div><div style="height: 1px;"></div><div style="clear: left;"></div></div></div></div></header><div id="middle"><div><div id="mainLeft" class="noprint"><div><nav><div><h2>Links</h2><ul><li><a href="../index.html">Docs Home</a></li><li><a href="index.html">Config Ref. Home</a></li><li><a href="https://cwiki.apache.org/confluence/display/TOMCAT/FAQ">FAQ</a></li><li><a href="#comments_section">User Comments</a></li></ul></div><div><h2>Top Level Elements</h2><ul><li><a href="server.html">Server</a></li><li><a href="service.html">Service</a></li></ul></div><div><h2>Executors</h2><ul><li><a href="executor.html">Executor</a></li></ul></div><div><h2>Connectors</h2><ul><li><a href="http.html">HTTP/1.1</a></li><li><a href="http2.html">HTTP/2</a></li><li><a href="ajp.html">AJP</a></li></ul></div><div><h2>Containers</h2><ul><li><a href="context.html">Context</a></li><li><a href="engine.html">Engine</a></li><li><a href="host.html">Host</a></li><li><a href="cluster.html">Cluster</a></li></ul></div><div><h2>Nested Components</h2><ul><li><a href="cookie-processor.html">CookieProcessor</a></li><li><a href="credentialhandler.html">CredentialHandler</a></li><li><a href="globalresources.html">Global Resources</a></li><li><a href="jar-scanner.html">JarScanner</a></li><li><a href="jar-scan-filter.html">JarScanFilter</a></li><li><a href="listeners.html">Listeners</a></li><li><a href="loader.html">Loader</a></li><li><a href="manager.html">Manager</a></li><li><a href="realm.html">Realm</a></li><li><a href="resources.html">Resources</a></li><li><a href="sessionidgenerator.html">SessionIdGenerator</a></li><li><a href="valve.html">Valve</a></li></ul></div><div><h2>Cluster Elements</h2><ul><li><a href="cluster.html">Cluster</a></li><li><a href="cluster-manager.html">Manager</a></li><li><a href="cluster-channel.html">Channel</a></li><li><a href="cluster-membership.html">Channel/Membership</a></li><li><a href="cluster-sender.html">Channel/Sender</a></li><li><a href="cluster-receiver.html">Channel/Receiver</a></li><li><a href="cluster-interceptor.html">Channel/Interceptor</a></li><li><a href="cluster-valve.html">Valve</a></li><li><a href="cluster-deployer.html">Deployer</a></li><li><a href="cluster-listener.html">ClusterListener</a></li></ul></div><div><h2>web.xml</h2><ul><li><a href="filter.html">Filter</a></li></ul></div><div><h2>Other</h2><ul><li><a href="systemprops.html">System properties</a></li><li><a href="jaspic.html">JASPIC</a></li></ul></div></nav></div></div><div id="mainRight"><div id="content"><h2>The Cookie Processor Component</h2><h3 id="Table_of_Contents">Table of Contents</h3><div class="text">
<ul><li><a href="#Introduction">Introduction</a></li><li><a href="#Attributes">Attributes</a><ol><li><a href="#Common_Attributes">Common Attributes</a></li><li><a href="#Standard_Implementation">Standard Implementation</a></li><li><a href="#Legacy_Cookie_Processor_-_org.apache.tomcat.util.http.LegacyCookieProcessor">Legacy Cookie Processor - org.apache.tomcat.util.http.LegacyCookieProcessor</a></li></ol></li><li><a href="#Nested_Components">Nested Components</a></li><li><a href="#Special_Features">Special Features</a></li></ul>
</div><h3 id="Introduction">Introduction</h3><div class="text">
<p>The <strong>CookieProcessor</strong> element represents the component that
parses received cookie headers into <code>javax.servlet.http.Cookie</code>
objects accessible through <code>HttpServletRequest.getCookies()</code> and
converts <code>javax.servlet.http.Cookie</code> objects added to the response
through <code>HttpServletResponse.addCookie()</code> to the HTTP headers
returned to the client.</p>
<p>A CookieProcessor element MAY be nested inside a
<a href="context.html">Context</a> component. If it is not included, a default
implementation will be created automatically.</p>
</div><h3 id="Attributes">Attributes</h3><div class="text">
<div class="subsection"><h4 id="Common_Attributes">Common Attributes</h4><div class="text">
<p>All implementations of <strong>CookieProcessor</strong> support the
following attributes:</p>
<table class="defaultTable"><tr><th style="width: 15%;">
Attribute
</th><th style="width: 85%;">
Description
</th></tr><tr><td><code class="attributeName">className</code></td><td>
<p>Java class name of the implementation to use. This class must
implement the <code>org.apache.tomcat.util.http.CookieProcessor</code>
interface. If not specified, the standard value (defined below) will be
used.</p>
</td></tr></table>
</div></div>
<div class="subsection"><h4 id="Standard_Implementation">Standard Implementation</h4><div class="text">
<p>The standard implementation of <strong>CookieProcessor</strong> is
<code>org.apache.tomcat.util.http.Rfc6265CookieProcessor</code>.</p>
<p>This cookie processor is based on RFC6265 with the following changes to
support better interoperability:</p>
<ul>
<li>Values 0x80 to 0xFF are permitted in cookie-octet to support the use
of UTF-8 in cookie values as used by HTML 5.</li>
<li>For cookies without a value, the '=' is not required after the name as
some browsers do not sent it.</li>
</ul>
<p>The RFC 6265 cookie processor is generally more lenient than the legacy
cookie parser. In particular:</p>
<ul>
<li>The '<code>=</code>' and '<code>/</code>' characters are always
permitted in a cookie value.</li>
<li>Name only cookies are always permitted.</li>
<li>The cookie header is always preserved.</li>
</ul>
<p>The <strong>RFC 6265 Cookie Processor</strong> supports the following
additional attributes.</p>
<table class="defaultTable"><tr><th style="width: 15%;">
Attribute
</th><th style="width: 85%;">
Description
</th></tr><tr><td><code class="attributeName">sameSiteCookies</code></td><td>
<p>Enables setting same-site cookie attribute.</p>
<p>If value is <code>unset</code> then the same-site cookie attribute
won't be set. This is the default value.</p>
<p>If value is <code>none</code> then the same-site cookie attribute
will be set and the cookie will always be sent in cross-site requests.</p>
<p>If value is <code>lax</code> then the browser only sends the cookie
in same-site requests and cross-site top level GET requests.</p>
<p>If value is <code>strict</code> then the browser prevents sending the
cookie in any cross-site request.</p>
</td></tr></table>
</div></div>
<div class="subsection"><h4 id="Legacy_Cookie_Processor_-_org.apache.tomcat.util.http.LegacyCookieProcessor">Legacy Cookie Processor - org.apache.tomcat.util.http.LegacyCookieProcessor</h4><div class="text">
<p>This is the legacy cookie parser based on RFC6265, RFC2109 and RFC2616.
It implements a strict interpretation of the cookie specifications. Due to
various interoperability issues with browsers not all strict behaviours
are enabled by default and additional options are available to further
relax the behaviour of this cookie processor if required.</p>
<table class="defaultTable"><tr><th style="width: 15%;">
Attribute
</th><th style="width: 85%;">
Description
</th></tr><tr><td><code class="attributeName">allowEqualsInValue</code></td><td>
<p>If this is <code>true</code> Tomcat will allow '<code>=</code>'
characters when parsing unquoted cookie values. If <code>false</code>,
cookie values containing '<code>=</code>' will be terminated when the
'<code>=</code>' is encountered and the remainder of the cookie value
will be dropped.</p>
<p>If not set the specification compliant default value of
<code>false</code> will be used.</p>
</td></tr><tr><td><code class="attributeName">allowHttpSepsInV0</code></td><td>
<p>If this is <code>true</code> Tomcat will allow HTTP separators in
cookie names and values.</p>
<p>If not specified, the default specification compliant value of
<code>false</code> will be used.</p>
</td></tr><tr><td><code class="attributeName">allowNameOnly</code></td><td>
<p>If this is <code>true</code> Tomcat will allow name only cookies
(with or without trailing '<code>=</code>') when parsing cookie headers.
If <code>false</code>, name only cookies will be dropped.</p>
<p>If not set the specification compliant default value of
<code>false</code> will be used.</p>
</td></tr><tr><td><code class="attributeName">alwaysAddExpires</code></td><td>
<p>If this is <code>true</code> Tomcat will always add an expires
parameter to a SetCookie header even for cookies with version greater
than zero. This is to work around a known IE6 and IE7 bug that causes I
to ignore the Max-Age parameter in a SetCookie header.</p>
<p>If <code>org.apache.catalina.STRICT_SERVLET_COMPLIANCE</code> is set
to <code>true</code>, the default of this setting will be
<code>false</code>, else the default value will be <code>true</code>.
</p>
</td></tr><tr><td><code class="attributeName">forwardSlashIsSeparator</code></td><td>
<p>If this is <code>true</code> Tomcat will treat the forward slash
character ('<code>/</code>') as an HTTP separator when processing cookie
headers. If <code>org.apache.catalina.STRICT_SERVLET_COMPLIANCE</code>
is set to <code>true</code>, the default of this setting will be
<code>true</code>, else the default value will be <code>false</code>.
</p>
</td></tr><tr><td><code class="attributeName">sameSiteCookies</code></td><td>
<p>Enables setting same-site cookie attribute.</p>
<p>If value is <code>unset</code> then the same-site cookie attribute
won't be set. This is the default value.</p>
<p>If value is <code>none</code> then the same-site cookie attribute
will be set and the cookie will always be sent in cross-site requests.</p>
<p>If value is <code>lax</code> then the browser only sends the cookie
in same-site requests and cross-site top level GET requests.</p>
<p>If value is <code>strict</code> then the browser prevents sending the
cookie in any cross-site request.</p>
</td></tr></table>
</div></div>
</div><h3 id="Nested_Components">Nested Components</h3><div class="text">
<p>No element may be nested inside a <strong>CookieProcessor</strong>.</p>
</div><h3 id="Special_Features">Special Features</h3><div class="text">
<p>No special features are associated with a <strong>CookieProcessor</strong>
element.</p>
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