Jetty/Howto/Configure Form Size

Introduction

Modifying the maximum permissable size of submitted form content.

Form Content Size

Jetty limits the amount of data that can be posted back from a browser or other client to the server. This helps protect the server against denial of service attacks by malicious clients sending huge amounts of data.

Changing for a single webapp

Context files are normally located in <jetty.home>/contexts/ (see ContextDeployer for more details). Context files can be used to configure the size of the maximum form content:

<Configure class="org.eclipse.jetty.webapp.WebAppContext">
 
  <Set name="contextPath">/</Set>
  <Set name="war"><SystemProperty name="jetty.home" default="."/>/webapps/test.war</Set>
 
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
  <!-- Max Form Size                                                   -->
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
  <Set name="maxFormContentSize">200000</Set>
</Configure>

Changing for all apps on a Server

<!--?xml version="1.0"  encoding="ISO-8859-1"?-->
 
 
<configure class="org.eclipse.jetty.server.Server">
      <Call name="setAttribute">
      <Arg>org.eclipse.jetty.server.Request.maxFormContentSize</Arg>
      <Arg>200000</Arg>
    </Call>
 
 
  <set name="maxFormContentSize"></set>
</configure>