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// SPDX-License-Identifier: BSD-3-Clause
package org.xbill.DNS;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.nio.file.Paths;
import java.time.Instant;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.junit.jupiter.api.Test;
import org.xbill.DNS.DNSSEC.DNSSECException;
class MasterTest {
/**
* Parse the <a href="https://www.internic.net/domain/root.zone">root zone file</a> to validate
* that we understand all record types.
*/
@Test
void testRootZoneFile() throws IOException, DNSSECException {
List<Record> records = new ArrayList<>(26000);
Map<String, RRset> rrSets = new HashMap<>(13000);
try (Master master = new Master(MasterTest.class.getResourceAsStream("/root.zone"))) {
Record r;
while ((r = master.nextRecord()) != null) {
records.add(r);
String key =
r.getName()
+ "/"
+ (r.getType() == Type.RRSIG ? ((RRSIGRecord) r).getTypeCovered() : r.getType());
RRset set = rrSets.computeIfAbsent(key, n -> new RRset());
set.addRR(r);
assertFalse(r.getClass().isInstance(EmptyRecord.class), "EmptyRecord type check");
assertNotEquals(Integer.toString(r.getType()), Type.string(r.getType()));
}
}
assertEquals(25097, records.size());
// Test the signatures
DNSKEYRecord[] keys =
records.stream()
.filter(r -> r.getName().equals(Name.root) && r.getType() == Type.DNSKEY)
.map(r -> (DNSKEYRecord) r)
.toArray(DNSKEYRecord[]::new);
for (RRset set : rrSets.values()) {
for (RRSIGRecord sig : set.sigs()) {
int verifyCount = 0;
for (DNSKEYRecord key : keys) {
if (key.getFootprint() == sig.getFootprint()) {
DNSSEC.verify(set, sig, key, Instant.parse("2023-11-05T19:50:00Z"));
verifyCount++;
}
}
assertEquals(set.sigs().size(), verifyCount);
}
}
}
@Test
void nextRecord() throws IOException {
Name exampleComName = Name.fromConstantString("example.com.");
try (Master master = new Master(MasterTest.class.getResourceAsStream("/zonefileEx1"))) {
master.expandGenerate(false);
Record rr = master.nextRecord();
assertEquals(Type.SOA, rr.getType());
rr = master.nextRecord();
assertEquals(Type.NS, rr.getType());
rr = master.nextRecord();
assertEquals(Type.MX, rr.getType());
rr = master.nextRecord();
// test special '@' resolves name correctly
assertEquals(exampleComName, rr.getName());
rr = master.nextRecord();
// test relative host become absolute
assertEquals(Name.fromConstantString("mail3.example.com."), rr.getAdditionalName());
rr = master.nextRecord();
assertEquals(Type.A, rr.getType());
rr = master.nextRecord();
assertEquals(Type.AAAA, rr.getType());
rr = master.nextRecord();
assertEquals(Type.CNAME, rr.getType());
rr = master.nextRecord();
assertNull(rr);
// $GENERATE directive is last in zonefile
assertTrue(master.generators().hasNext());
}
}
@Test
void includeDirective() throws IOException, URISyntaxException {
try (Master master =
new Master(
Paths.get(MasterTest.class.getResource("/zonefileIncludeDirective").toURI())
.toString())) {
Record rr = master.nextRecord();
assertEquals(Type.SOA, rr.getType());
}
}
@Test
void includeDirectiveComment() throws IOException, URISyntaxException {
try (Master master =
new Master(
Paths.get(MasterTest.class.getResource("/zonefileIncludeDirectiveComment").toURI())
.toString())) {
Record rr = master.nextRecord();
assertEquals(Type.SOA, rr.getType());
}
}
@Test
void relativeIncludeDirectiveViaStream() throws IOException {
try (InputStream is = MasterTest.class.getResourceAsStream("/zonefileIncludeDirective");
Master m = new Master(is)) {
assertThrows(TextParseException.class, m::nextRecord);
}
}
@Test
void includeDirectiveDisabled() throws IOException {
try (InputStream is = MasterTest.class.getResourceAsStream("/zonefileIncludeDirective");
Master m = new Master(is)) {
m.disableIncludes();
assertNull(m.nextRecord());
}
}
@Test
void includeDirectiveDisabledStrict() throws IOException {
try (InputStream is = MasterTest.class.getResourceAsStream("/zonefileIncludeDirective");
Master m = new Master(is)) {
m.disableIncludes(true);
assertThrows(TextParseException.class, m::nextRecord);
}
}
@Test
void includeDirectiveDisabledComment() throws IOException {
try (InputStream is = MasterTest.class.getResourceAsStream("/zonefileIncludeDirectiveComment");
Master m = new Master(is)) {
m.disableIncludes();
assertNull(m.nextRecord());
}
}
@Test
void expandGenerated() throws IOException {
try (Master master = new Master(MasterTest.class.getResourceAsStream("/zonefileEx1"))) {
master.expandGenerate(true);
// until we get to the generator directive, it's empty
assertFalse(master.generators().hasNext());
Record rr = skipTo(master, Type.PTR);
assertTrue(master.generators().hasNext());
assertEquals(Type.PTR, rr.getType());
assertEquals(
Name.fromConstantString("host-1.dsl.example.com."), ((PTRRecord) rr).getTarget());
}
}
@Test
void invalidGenRange() {
try (Master master = new Master(new ByteArrayInputStream("$GENERATE 3-1".getBytes()))) {
TextParseException thrown = assertThrows(TextParseException.class, master::nextRecord);
assertTrue(thrown.getMessage().contains("Invalid $GENERATE range specifier: 3-1"));
}
}
@Test
void invalidGenType() {
try (Master master =
new Master(
new ByteArrayInputStream(
"$TTL 1h\n$GENERATE 1-3 example.com. MX 10 mail.example.com.".getBytes()))) {
TextParseException thrown = assertThrows(TextParseException.class, master::nextRecord);
assertTrue(thrown.getMessage().contains("$GENERATE does not support MX records"));
}
}
@Test
void invalidGenerateRangeSpecifier() {
try (Master master = new Master(new ByteArrayInputStream("$GENERATE 1to20".getBytes()))) {
TextParseException thrown = assertThrows(TextParseException.class, master::nextRecord);
assertTrue(thrown.getMessage().contains("Invalid $GENERATE range specifier"));
}
}
@Test
void invalidDirective() {
try (Master master = new Master(new ByteArrayInputStream("$INVALID".getBytes()))) {
TextParseException thrown = assertThrows(TextParseException.class, master::nextRecord);
assertTrue(thrown.getMessage().contains("Invalid directive: $INVALID"));
}
}
@Test
void missingTTL() {
try (Master master = new Master(new ByteArrayInputStream("example.com. IN NS ns".getBytes()))) {
TextParseException thrown = assertThrows(TextParseException.class, master::nextRecord);
assertTrue(thrown.getMessage().contains("missing TTL"));
}
}
@Test
void invalidType() {
try (Master master =
new Master(new ByteArrayInputStream("example.com. IN INVALID".getBytes()))) {
TextParseException thrown = assertThrows(TextParseException.class, master::nextRecord);
assertTrue(thrown.getMessage().contains("Invalid type"));
}
}
@Test
void noOwner() {
try (Master master = new Master(new ByteArrayInputStream(" \n ^".getBytes()))) {
TextParseException thrown = assertThrows(TextParseException.class, master::nextRecord);
assertTrue(thrown.getMessage().contains("no owner"));
}
}
@Test
void invalidOriginNotAbsolute_ctorInputStream() {
RelativeNameException thrown =
assertThrows(
RelativeNameException.class,
() -> new Master((InputStream) null, Name.fromConstantString("notabsolute")));
assertTrue(thrown.getMessage().contains("'notabsolute' is not an absolute name"));
}
@Test
void invalidOriginNotAbsolute_ctorString() {
RelativeNameException thrown =
assertThrows(
RelativeNameException.class,
() -> new Master("zonefileEx1", Name.fromConstantString("notabsolute")));
assertTrue(thrown.getMessage().contains("'notabsolute' is not an absolute name"));
}
private Record skipTo(Master master, int type) throws IOException {
Record r;
do {
r = master.nextRecord();
} while (r != null && r.getType() != type);
return r;
}
}