nutch-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-->

<!-- Creative Commons' Nutch configuration -->

<configuration>

<property>
  <name>http.agent.name</name>
  <value>CreativeCommons</value>
  <description>Our HTTP 'User-Agent' request header.</description>
</property>

<property>
  <name>http.robots.agents</name>
  <value>CreativeCommons,Nutch,*</value>
  <description>The agent strings we'll look for in robots.txt files,
  comma-separated, in decreasing order of precedence.</description>
</property>

<property>
  <name>fetcher.server.delay</name>
  <value>2.0</value>
  <description>We need to be more polite than when crawling an
  intranet that we control.</description>
</property>

<property>
  <name>creativecommons.exclude.unlicensed</name>
  <value>true</value>
  <description>Exclude HTML content which does not contain a CC license.
  </description>
</property>

<property>
  <name>plugin.excludes</name>
  <value>parse-(?!html).*</value>
  <description>Exclude non-HTML content, since we don't know how to
  find a CC license in anything but HTML. 
  </description>
</property>

</configuration>