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* distributed with this work for additional information *
* regarding copyright ownership. The ASF licenses this file *
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* "License"); you may not use this file except in compliance *
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* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
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* software distributed under the License is distributed on an *
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package org.apache.james.jspf.policies;
import org.apache.james.jspf.core.DNSLookupContinuation;
import org.apache.james.jspf.core.SPF1Record;
import org.apache.james.jspf.core.SPF1Utils;
import org.apache.james.jspf.core.SPFChecker;
import org.apache.james.jspf.core.SPFSession;
import org.apache.james.jspf.core.exceptions.NeutralException;
import org.apache.james.jspf.core.exceptions.NoneException;
import org.apache.james.jspf.core.exceptions.PermErrorException;
import org.apache.james.jspf.core.exceptions.TempErrorException;
import org.xbill.DNS.Name;
import org.xbill.DNS.TextParseException;
/**
* Run the checks on the validity of the domain
* This is an override filter to be executed as the first
* so it should be added as the last filter.
*/
public final class InitialChecksPolicy implements SPFChecker {
/**
* @see org.apache.james.jspf.core.SPFChecker#checkSPF(org.apache.james.jspf.core.SPFSession)
*/
public DNSLookupContinuation checkSPF(SPFSession spfData)
throws PermErrorException, TempErrorException, NeutralException,
NoneException {
SPF1Record res = (SPF1Record) spfData.getAttribute(SPF1Utils.ATTRIBUTE_SPF1_RECORD);
if (res == null) {
// Initial checks (spec 4.3)
String currentDomain = spfData.getCurrentDomain();
if (currentDomain != null) {
String[] labels = currentDomain.split("\\.");
for (int i = 0; i < labels.length; i++) {
if (labels[i] != null && labels[i].length() > 63) {
throw new NoneException("Domain "+currentDomain+" is malformed (label longer than 63 characters)");
}
}
}
if (spfData.getSenderDomain().indexOf('.') < 0) {
throw new NoneException("Sender domain "+spfData.getSenderDomain()+" is not an FQDN.");
}
try {
Name.fromString(spfData.getSenderDomain());
} catch (TextParseException e) {
throw new NoneException("Invalid sender domain: "+e.getMessage());
}
}
return null;
}
}
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