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2 * Licensed to the Apache Software Foundation (ASF) under one *
3 * or more contributor license agreements. See the NOTICE file *
4 * distributed with this work for additional information *
5 * regarding copyright ownership. The ASF licenses this file *
6 * to you under the Apache License, Version 2.0 (the *
7 * "License"); you may not use this file except in compliance *
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10 * http://www.apache.org/licenses/LICENSE-2.0 *
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13 * software distributed under the License is distributed on an *
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
15 * KIND, either express or implied. See the License for the *
16 * specific language governing permissions and limitations *
17 * under the License. *
18 ****************************************************************/
19
20
21 package org.apache.james.jspf.terms;
22
23 import org.apache.james.jspf.core.DNSLookupContinuation;
24 import org.apache.james.jspf.core.SPFSession;
25 import org.apache.james.jspf.core.SPFTermsRegexps;
26 import org.apache.james.jspf.core.exceptions.PermErrorException;
27
28 /**
29 * This Class represent an Unknown Modifier
30 *
31 */
32 public class UnknownModifier implements Modifier, ConfigurationEnabled {
33
34 /**
35 * ABNF: name = ALPHA *( ALPHA / DIGIT / "-" / "_" / "." ) ABNF:
36 * unknown-modifier = name "=" macro-string
37 */
38 public static final String REGEX = "(" + SPFTermsRegexps.ALPHA_PATTERN + "{1}"
39 + "[A-Za-z0-9\\-\\_\\.]*" + ")" + "\\=("
40 + SPFTermsRegexps.MACRO_STRING_REGEX + ")";
41
42 /**
43 * @see org.apache.james.jspf.core.SPFChecker#checkSPF(org.apache.james.jspf.core.SPFSession)
44 */
45 public DNSLookupContinuation checkSPF(SPFSession spfData) throws PermErrorException {
46 return null;
47 }
48
49 /**
50 * @see org.apache.james.jspf.terms.Modifier#enforceSingleInstance()
51 */
52 public boolean enforceSingleInstance() {
53 return false;
54 }
55
56 /**
57 * @see org.apache.james.jspf.terms.ConfigurationEnabled#config(org.apache.james.jspf.terms.Configuration)
58 */
59 public synchronized void config(Configuration params) throws PermErrorException {
60 if (params.groupCount() >= 2 && params.group(1) != null) {
61 String name = params.group(1).toLowerCase();
62 if ("exp".equals(name) || "redirect".equals(name)) {
63 throw new PermErrorException("exp and redirect are not valid names for unknown modifier: this probably means an invalid syntax for exp or redirect fallback to the unkown modifier.");
64 }
65 }
66 }
67
68 }