public void ParseTest()
{
const string str = @"
; zone fragment example.com
; mail servers in the same zone
; will support incoming email with addresses of the format
; [email protected]
$TTL 2d ; zone default = 2 days or 172800 seconds
$ORIGIN example.com.
sil.example.com. IN SSHFP 2 1 450c7d19d5da9a3a5b7c18992d1fbde15d8dad34";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(1, zone.Records.Count);
Assert.IsAssignableFrom <SSHFPResourceRecord>(zone.Records.First());
var record = (SSHFPResourceRecord)zone.Records.First();
Assert.AreEqual("sil.example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.SSHFP, record.Type);
Assert.AreEqual(2, record.AlgorithmNumber);
Assert.AreEqual(1, record.FingerprintType);
Assert.AreEqual("450c7d19d5da9a3a5b7c18992d1fbde15d8dad34", record.Fingerprint);
}
public void MxRecordParseTest()
{
const string str = @"
; zone fragment example.com
; mail servers in the same zone
; will support incoming email with addresses of the format
; [email protected]
$TTL 2d ; zone default = 2 days or 172800 seconds
$ORIGIN example.com.
@ IN MX 10 mail.foo.com.
@ IN MX 20 mail2.foo.com.";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(2, zone.Records.Count);
Assert.IsAssignableFrom <MxResourceRecord>(zone.Records.First());
var record = (MxResourceRecord)zone.Records.First();
Assert.AreEqual("example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.MX, record.Type);
Assert.AreEqual(10, record.Preference);
Assert.AreEqual("mail.foo.com", record.Exchange);
}
public void ParseTest()
{
const string str = @"
; zone fragment example.com
; mail servers in the same zone
; will support incoming email with addresses of the format
; [email protected]
$TTL 2d ; zone default = 2 days or 172800 seconds
$ORIGIN example.com.
example.com. IN CAA 0 iodef ""mailto: [email protected]""
IN CAA 0 issue ""letsencrypt.org""";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(2, zone.Records.Count);
Assert.IsAssignableFrom <CAAResourceRecord>(zone.Records.First());
var record = (CAAResourceRecord)zone.Records.First();
Assert.AreEqual("example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.CAA, record.Type);
Assert.AreEqual(0, record.Flag);
Assert.AreEqual("iodef", record.Tag);
Assert.AreEqual("mailto: [email protected]", record.Value);
}
public void SoaRecordParseTest()
{
const string str = @"
$TTL 1h ; default expiration time of all resource records without their own TTL value
example.com. IN SOA ns.example.com. hostmaster.example.com. (
2003080800 ; sn = serial number
172800 ; ref = refresh = 2d
900 ; ret = update retry = 15m
1209600 ; ex = expiry = 2w
3600 ; nx = nxdomain ttl = 1h
)";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(1, zone.Records.Count);
Assert.IsAssignableFrom <SoaResourceRecord>(zone.Records.First());
var record = (SoaResourceRecord)zone.Records.First();
Assert.AreEqual("example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.SOA, record.Type);
Assert.AreEqual("ns.example.com", record.NameServer);
Assert.AreEqual("2003080800", record.SerialNumber);
Assert.AreEqual(TimeSpan.FromDays(2), record.Refresh);
Assert.AreEqual(TimeSpan.FromMinutes(15), record.Retry);
Assert.AreEqual(TimeSpan.FromDays(14), record.Expiry);
Assert.AreEqual(TimeSpan.FromHours(1), record.Minimum);
}
public void EmptyLabelParseTest()
{
const string str = @"
$TTL 2h
@ IN SOA ns.host.com. ns2.host.com. (
2018042701 ; serial
2h ; refresh
15m ; update retry
2w ; expiry
2h ; minimum
)
NS ns.host.com.
NS ns2.host.com.
MX 20 mail.host.com.
; IN TXT ""v = spf1 + mx + include:host.com? all""
A 10.0.0.1";
var zone = DnsZoneFile.Parse(str, "example.com");
foreach (ResourceRecord rr in zone.Records)
{
if (rr.Name.Substring(0, 1) == ".")
{
throw new Exception("Empty label");
}
}
}
public void ParseTest()
{
const string str = @"
$ORIGIN example.com. ; designates the start of this zone file in the namespace
$TTL 1h ; default expiration time of all resource records without their own TTL value
example.com. IN SOA ns.example.com. username.example.com. ( 2007120710 1d 2h 4w 1h )
example.com. IN NS ns ; ns.example.com is a nameserver for example.com
example.com. IN NS ns.somewhere.example. ; ns.somewhere.example is a backup nameserver for example.com
example.com. IN MX 10 mail.example.com. ; mail.example.com is the mailserver for example.com
@ IN MX 20 mail2.example.com. ; equivalent to above line, ""@"" represents zone origin
@ IN MX 50 mail3 ; equivalent to above line, but using a relative host name
example.com. IN A 192.0.2.1 ; IPv4 address for example.com
IN AAAA 2001:db8:10::1 ; IPv6 address for example.com
ns IN A 192.0.2.2 ; IPv4 address for ns.example.com
IN AAAA 2001:db8:10::2 ; IPv6 address for ns.example.com
www IN CNAME example.com. ; www.example.com is an alias for example.com
wwwtest IN CNAME www ; wwwtest.example.com is another alias for www.example.com
mail IN A 192.0.2.3 ; IPv4 address for mail.example.com
mail2 IN A 192.0.2.4 ; IPv4 address for mail2.example.com
mail3 IN A 192.0.2.5 ; IPv4 address for mail3.example.com";
try {
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(1, zone.Records.OfType <SoaResourceRecord>().Count());
Assert.AreEqual(2, zone.Records.OfType <NsResourceRecord>().Count());
Assert.AreEqual(3, zone.Records.OfType <MxResourceRecord>().Count());
Assert.AreEqual(5, zone.Records.OfType <AResourceRecord>().Count());
Assert.AreEqual(2, zone.Records.OfType <CNameResourceRecord>().Count());
} catch (TokenException exc) {
Console.WriteLine(exc.Token.Position.GetLine());
throw;
}
}
public void ParseTest()
{
const string str = @"
; zone fragment example.com
; mail servers in the same zone
; will support incoming email with addresses of the format
; [email protected]
$TTL 2d ; zone default = 2 days or 172800 seconds
$ORIGIN example.com.
_443._tcp.keyserver.example.com. IN TLSA 3 1 1 e677073271638e936eb3846c7aacfd3d387b831aa953b7486dc8f6227798f70b";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(1, zone.Records.Count);
Assert.IsAssignableFrom <TLSAResourceRecord>(zone.Records.First());
var record = (TLSAResourceRecord)zone.Records.First();
Assert.AreEqual("_443._tcp.keyserver.example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.TLSA, record.Type);
Assert.AreEqual(3, record.CertificateUsage);
Assert.AreEqual(1, record.Selector);
Assert.AreEqual(1, record.MatchingType);
Assert.AreEqual("e677073271638e936eb3846c7aacfd3d387b831aa953b7486dc8f6227798f70b", record.CertificateAssociationData);
}
public void AaaaRecordParseTest()
{
const string str = @"
; zone fragment for example.com
$TTL 2d ; zone default = 2 days or 172800 seconds
$ORIGIN example.com.
joe IN AAAA 2001:db8::3 ; joe & www = same ip
www IN AAAA 2001:db8::3
; functionally the same as the record above
www.example.com. AAAA 2001:db8::3
fred 3600 IN AAAA 2001:db8::4 ; ttl =3600 overrides $TTL default
ftp IN AAAA 2001:db8::5 ; round robin with next
IN AAAA 2001:db8::6
mail IN AAAA 2001:db8::7 ; mail = round robin
mail IN AAAA 2001:db8::32
mail IN AAAA 2001:db8::33
squat IN AAAA 2001:db8:0:0:1::13 ; address in another subnet";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(10, zone.Records.Count);
Assert.IsAssignableFrom <AaaaResourceRecord>(zone.Records.First());
var record = (AaaaResourceRecord)zone.Records.First();
Assert.AreEqual("joe.example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.AAAA, record.Type);
Assert.AreEqual(IPAddress.Parse("2001:db8::3"), record.Address);
}
public void TxtRecordParseTest()
{
const string str = @"
$ORIGIN example.com.
; multiple quotes strings on a single line
; generates a single text string of
; Located in a black hole somewhere
$TTL 1h ; default expiration time of all resource records without their own TTL value
joe IN TXT ""Located in a black hole"" "" somewhere""
; multiple quoted strings on multiple lines
joe IN TXT (""Located in a black hole""
"" somewhere over the rainbow"")
; generates a single text string of
; Located in a black hole somewhere over the rainbow";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(2, zone.Records.Count);
Assert.IsAssignableFrom <TxtResourceRecord>(zone.Records.First());
var record = (TxtResourceRecord)zone.Records.First();
Assert.AreEqual("joe.example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.TXT, record.Type);
Assert.AreEqual("Located in a black hole somewhere", record.Content);
}
public void SrvRecordParseTest()
{
const string str = @"
$ORIGIN example.com.
$TTL 2d ; 172800 secs
; foobar - use old-slow-box or new-fast-box if either is
; available, make three quarters of the logins go to
; new-fast-box.
_foobar._tcp SRV 0 1 9 old-slow-box.example.com.
SRV 0 3 9 new-fast-box.example.com.
; if neither old-slow-box or new-fast-box is up, switch to
; using the sysdmin's box and the server
SRV 1 0 9 sysadmins-box.example.com.
SRV 1 0 9 server.example.com.
*._tcp SRV 0 0 0 .
*._udp SRV 0 0 0 .";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(6, zone.Records.Count);
Assert.IsAssignableFrom <SrvResourceRecord>(zone.Records.First());
var record = (SrvResourceRecord)zone.Records.First();
Assert.AreEqual("_foobar._tcp.example.com", record.Name);
Assert.AreEqual(null, record.Class);
Assert.AreEqual(ResourceRecordType.SRV, record.Type);
Assert.AreEqual(0, record.Priority);
}
public void MissingOriginTest()
{
const string str = @"
; A Records
@ 600 IN A 184.168.221.14
sub 600 IN A 184.168.221.15
";
Assert.Throws <TokenException>(() => DnsZoneFile.Parse(str));
}
public void IncludeTest()
{
var embedded = new EmbeddedDnsSource(GetType().Assembly, GetType().Namespace + ".Samples", "root_com.zone");
var zone = DnsZoneFile.Parse(embedded);
Assert.AreEqual(2, zone.Records.Count);
var rootA = zone.Single <AResourceRecord>("root.com");
Assert.AreEqual(IPAddress.Parse("192.168.0.1"), rootA.Address);
var wwwA = zone.Single <AResourceRecord>("www.root.com");
Assert.AreEqual(IPAddress.Parse("192.168.0.2"), wwwA.Address);
}
public void EmptyTest()
{
const string str = @"
;just single comment
;white space and comments
";
try {
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(0, zone.Records.Count);
} catch (TokenException exc) {
Console.WriteLine(exc.Token.Position.GetLine());
throw;
}
}
public void ExplicitOriginTest()
{
const string str = @"
; A Records
@ 600 IN A 184.168.221.14
sub 600 IN A 184.168.221.15
";
var zone = DnsZoneFile.Parse(str, "test.com");
Assert.AreEqual(2, zone.Records.Count);
Assert.IsAssignableFrom <AResourceRecord>(zone.Records.First());
var rootRecord = (AResourceRecord)zone.Records.First();
Assert.AreEqual("test.com", rootRecord.Name);
var subRecord = (AResourceRecord)zone.Records.Last();
Assert.AreEqual("sub.test.com", subRecord.Name);
}
public void CNameRecordParseTest()
{
const string str = @"
; zone fragment for example.com
$TTL 2d ; zone default = 2 days or 172800 seconds
$ORIGIN example.com.
www IN CNAME server1
ftp IN CNAME server1";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(2, zone.Records.Count);
Assert.IsAssignableFrom <CNameResourceRecord>(zone.Records.First());
var record = (CNameResourceRecord)zone.Records.First();
Assert.AreEqual("www.example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.CNAME, record.Type);
Assert.AreEqual("server1.example.com", record.CanonicalName);
}
public void ARecordParseTest()
{
const string str = @"
; zone file snippet
$ORIGIN example.com.
$TTL 2d ; 172800 secs
alice IN A 192.168.2.1 ; real host name
ns1 IN A 192.168.2.1 ; service name
alice IN A 192.168.2.1 ; host name (same IPv4)";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(3, zone.Records.Count);
Assert.IsAssignableFrom <AResourceRecord>(zone.Records.First());
var record = (AResourceRecord)zone.Records.First();
Assert.AreEqual("alice.example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.A, record.Type);
Assert.AreEqual(IPAddress.Parse("192.168.2.1"), record.Address);
}
public void PtrRecordParseTest()
{
const string str = @"
$TTL 2d ; 172800 secs
$ORIGIN 23.168.192.IN-ADDR.ARPA.
2 IN PTR joe.example.com. ; FDQN
15 IN PTR www.example.com.
17 IN PTR bill.example.com.
74 IN PTR fred.example.com.";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(4, zone.Records.Count);
Assert.IsAssignableFrom <PtrResourceRecord>(zone.Records.First());
var record = (PtrResourceRecord)zone.Records.First();
Assert.AreEqual("2.23.168.192.IN-ADDR.ARPA", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.PTR, record.Type);
Assert.AreEqual("joe.example.com", record.HostName);
}
public void NsRecordParseTest()
{
const string str = @"
; zone fragment example.com
; mail servers in the same zone
; will support incoming email with addresses of the format
; [email protected]
$TTL 2d ; zone default = 2 days or 172800 seconds
$ORIGIN example.com.
@ IN NS ns1.example.net.
@ IN NS ns1.example.org.";
var zone = DnsZoneFile.Parse(str);
Assert.AreEqual(2, zone.Records.Count);
Assert.IsAssignableFrom <NsResourceRecord>(zone.Records.First());
var record = (NsResourceRecord)zone.Records.First();
Assert.AreEqual("example.com", record.Name);
Assert.AreEqual("IN", record.Class);
Assert.AreEqual(ResourceRecordType.NS, record.Type);
Assert.AreEqual("ns1.example.net", record.NameServer);
}
