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Difference between revisions of "Jetty/Howto/Configure Form Size"
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{{Jetty Howto | {{Jetty Howto | ||
| − | |introduction = | + | |introduction = Jetty limits the amount of data that can post 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. The default maximum size Jetty permits is 200000 bytes. You can change this default for a particular webapp, for all webapps on a particular Server instance, or all webapps within the same JVM. |
| − | == Form | + | == Changing the Maximum Form Size for a Single Webapp == |
| − | + | The method to invoke is: | |
| + | <source lang="java"> | ||
| + | ContextHandler.setMaxFormContentSize(int maxSize); | ||
| + | </source> | ||
| − | + | You can do this either in a [[Jetty/Feature/ContextDeployer|context XML deployment descriptor]] external to the webapp, or in a [[Jetty/Reference/jetty-web.xml|<tt>jetty-web.xml</tt> file]] in the webapp's <tt>WEB-INF</tt> directory. | |
| − | + | In either case the syntax of the XML file is the same: | |
<source lang="xml"> | <source lang="xml"> | ||
<Configure class="org.eclipse.jetty.webapp.WebAppContext"> | <Configure class="org.eclipse.jetty.webapp.WebAppContext"> | ||
| − | |||
| − | |||
| − | |||
| − | |||
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --> | <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --> | ||
<!-- Max Form Size --> | <!-- Max Form Size --> | ||
| Line 25: | Line 24: | ||
</source> | </source> | ||
| − | == Changing for | + | == Changing the Maximum Form Size for All Apps on a Server == |
| + | |||
| + | Set an attribute on the Server instance for which you want to modify the maximum form content size: | ||
<source lang="xml"> | <source lang="xml"> | ||
| − | |||
| − | |||
| − | |||
<configure class="org.eclipse.jetty.server.Server"> | <configure class="org.eclipse.jetty.server.Server"> | ||
<Call name="setAttribute"> | <Call name="setAttribute"> | ||
| Line 36: | Line 34: | ||
<Arg>200000</Arg> | <Arg>200000</Arg> | ||
</Call> | </Call> | ||
| + | </configure> | ||
| + | </source> | ||
| + | == Changing the Maximum Form Size for All Apps in the JVM== | ||
| − | + | Use the system property "org.eclipse.jetty.server.Request.maxFormContentSize". | |
| − | + | ||
| − | + | ||
| category = [[category:Jetty Howto]] | | category = [[category:Jetty Howto]] | ||
}} | }} | ||
Revision as of 14:49, 18 August 2011
Contents
Introduction
Jetty limits the amount of data that can post 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. The default maximum size Jetty permits is 200000 bytes. You can change this default for a particular webapp, for all webapps on a particular Server instance, or all webapps within the same JVM.
Changing the Maximum Form Size for a Single Webapp
The method to invoke is:
ContextHandler.setMaxFormContentSize(int maxSize);
You can do this either in a context XML deployment descriptor external to the webapp, or in a jetty-web.xml file in the webapp's WEB-INF directory.
In either case the syntax of the XML file is the same:
<Configure class="org.eclipse.jetty.webapp.WebAppContext"> <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --> <!-- Max Form Size --> <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --> <Set name="maxFormContentSize">200000</Set> </Configure>
Changing the Maximum Form Size for All Apps on a Server
Set an attribute on the Server instance for which you want to modify the maximum form content size:
<configure class="org.eclipse.jetty.server.Server"> <Call name="setAttribute"> <Arg>org.eclipse.jetty.server.Request.maxFormContentSize</Arg> <Arg>200000</Arg> </Call> </configure>
Changing the Maximum Form Size for All Apps in the JVM
Use the system property "org.eclipse.jetty.server.Request.maxFormContentSize".