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Code Issues Releases Wiki Activity

Implement RegexSet to validate a single user-id against multiple wildcards

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This commit is contained in:
Paul Schaub 2022-12-01 15:21:00 +01:00
parent 15142b5775
commit f62a6a30ff
2 changed files with 91 additions and 0 deletions
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40
pgpainless-core/src/main/java/org/pgpainless/algorithm/RegexSet.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.algorithm;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
public final class RegexSet {
private final Set<Regex> regexSet = new HashSet<>();
private RegexSet(Collection<Regex> regexes) {
this.regexSet.addAll(regexes);
}
public static RegexSet matchAnything() {
return new RegexSet(Collections.singleton(Regex.wildcard()));
}
public static RegexSet matchNothing() {
return new RegexSet(Collections.emptySet());
}
public static RegexSet matchSome(Collection<Regex> regexes) {
return new RegexSet(regexes);
}
public boolean matches(String userId) {
for (Regex regex : regexSet) {
if (regex.matches(userId)) {
return true;
}
}
return false;
}
}

51
pgpainless-core/src/test/java/org/pgpainless/algorithm/RegexSetTest.java Normal file
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// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.algorithm;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.util.Arrays;
import org.junit.jupiter.api.Test;
public class RegexSetTest {
@Test
public void matchNothingTest() {
RegexSet set = RegexSet.matchNothing();
assertFalse(set.matches("<alice@pgpainless.org>"));
assertFalse(set.matches("Alice"));
assertFalse(set.matches("Alice <alice@pgpainless.org>"));
assertFalse(set.matches(""));
}
@Test
public void matchAnything() {
RegexSet set = RegexSet.matchAnything();
assertTrue(set.matches("Alice"));
assertTrue(set.matches("<alice@pgpainless.org>"));
assertTrue(set.matches("Alice <alice@pgpainless.org>"));
assertTrue(set.matches("Alice <alice@example.org>"));
assertTrue(set.matches(""));
}
@Test
public void matchSome() {
Regex pgpainless_org = RegexInterpreterFactory.createDefaultMailDomainRegex("pgpainless.org");
Regex example_org = RegexInterpreterFactory.createDefaultMailDomainRegex("example.org");
RegexSet set = RegexSet.matchSome(Arrays.asList(pgpainless_org, example_org));
assertTrue(set.matches("Alice <alice@pgpainless.org>"));
assertTrue(set.matches("<alice@pgpainless.org>"));
assertTrue(set.matches("Bob <bob@example.org>"));
assertTrue(set.matches("<bob@example.org>"));
assertFalse(set.matches("Bob <bob@example.com>"));
assertFalse(set.matches("Alice <alice@PGPainless.org>"));
assertFalse(set.matches("alice@pgpainless.org"));
assertFalse(set.matches("Alice"));
assertFalse(set.matches(""));
}
}