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DnsServer: fixed bugs in ANAME resolution. Fixed serve-stale issue by only returning stale answers that have NoError rcode. Minor code refactoring done.

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This commit is contained in:
Shreyas Zare
2020-06-13 15:48:59 +05:30
parent 57a83a3f82
commit bf959c483a
3 changed files with 30 additions and 30 deletions
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44
DnsServerCore/WebService.cs
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@@ -2436,36 +2436,36 @@ namespace DnsServerCore
{
foreach (KeyValuePair<DnsResourceRecordType, List<DnsResourceRecord>> groupedRecords in groupedByTypeRecords.Value)
{
foreach (DnsResourceRecord resourceRecord in groupedRecords.Value)
foreach (DnsResourceRecord record in groupedRecords.Value)
{
jsonWriter.WriteStartObject();
if (authoritativeZoneRecords)
{
jsonWriter.WritePropertyName("disabled");
jsonWriter.WriteValue(resourceRecord.IsDisabled());
jsonWriter.WriteValue(record.IsDisabled());
}
jsonWriter.WritePropertyName("name");
jsonWriter.WriteValue(resourceRecord.Name);
jsonWriter.WriteValue(record.Name);
jsonWriter.WritePropertyName("type");
jsonWriter.WriteValue(resourceRecord.Type.ToString());
jsonWriter.WriteValue(record.Type.ToString());
jsonWriter.WritePropertyName("ttl");
if (authoritativeZoneRecords)
jsonWriter.WriteValue(resourceRecord.TtlValue);
jsonWriter.WriteValue(record.TtlValue);
else
jsonWriter.WriteValue(resourceRecord.TTL);
jsonWriter.WriteValue(record.TTL);
jsonWriter.WritePropertyName("rData");
jsonWriter.WriteStartObject();
switch (resourceRecord.Type)
switch (record.Type)
{
case DnsResourceRecordType.A:
{
DnsARecord rdata = (resourceRecord.RDATA as DnsARecord);
DnsARecord rdata = (record.RDATA as DnsARecord);
if (rdata != null)
{
jsonWriter.WritePropertyName("value");
@@ -2476,7 +2476,7 @@ namespace DnsServerCore
case DnsResourceRecordType.AAAA:
{
DnsAAAARecord rdata = (resourceRecord.RDATA as DnsAAAARecord);
DnsAAAARecord rdata = (record.RDATA as DnsAAAARecord);
if (rdata != null)
{
jsonWriter.WritePropertyName("value");
@@ -2487,7 +2487,7 @@ namespace DnsServerCore
case DnsResourceRecordType.SOA:
{
DnsSOARecord rdata = resourceRecord.RDATA as DnsSOARecord;
DnsSOARecord rdata = record.RDATA as DnsSOARecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("masterNameServer");
@@ -2512,7 +2512,7 @@ namespace DnsServerCore
jsonWriter.WriteValue(rdata.Minimum);
}
IReadOnlyList<DnsResourceRecord> glueRecords = resourceRecord.GetGlueRecords();
IReadOnlyList<DnsResourceRecord> glueRecords = record.GetGlueRecords();
if (glueRecords.Count > 0)
{
string glue = null;
@@ -2533,7 +2533,7 @@ namespace DnsServerCore
case DnsResourceRecordType.PTR:
{
DnsPTRRecord rdata = resourceRecord.RDATA as DnsPTRRecord;
DnsPTRRecord rdata = record.RDATA as DnsPTRRecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("value");
@@ -2544,7 +2544,7 @@ namespace DnsServerCore
case DnsResourceRecordType.MX:
{
DnsMXRecord rdata = resourceRecord.RDATA as DnsMXRecord;
DnsMXRecord rdata = record.RDATA as DnsMXRecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("preference");
@@ -2558,7 +2558,7 @@ namespace DnsServerCore
case DnsResourceRecordType.TXT:
{
DnsTXTRecord rdata = resourceRecord.RDATA as DnsTXTRecord;
DnsTXTRecord rdata = record.RDATA as DnsTXTRecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("value");
@@ -2569,14 +2569,14 @@ namespace DnsServerCore
case DnsResourceRecordType.NS:
{
DnsNSRecord rdata = resourceRecord.RDATA as DnsNSRecord;
DnsNSRecord rdata = record.RDATA as DnsNSRecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("value");
jsonWriter.WriteValue(rdata.NameServer);
}
IReadOnlyList<DnsResourceRecord> glueRecords = resourceRecord.GetGlueRecords();
IReadOnlyList<DnsResourceRecord> glueRecords = record.GetGlueRecords();
if (glueRecords.Count > 0)
{
string glue = null;
@@ -2597,7 +2597,7 @@ namespace DnsServerCore
case DnsResourceRecordType.CNAME:
{
DnsCNAMERecord rdata = resourceRecord.RDATA as DnsCNAMERecord;
DnsCNAMERecord rdata = record.RDATA as DnsCNAMERecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("value");
@@ -2608,7 +2608,7 @@ namespace DnsServerCore
case DnsResourceRecordType.SRV:
{
DnsSRVRecord rdata = resourceRecord.RDATA as DnsSRVRecord;
DnsSRVRecord rdata = record.RDATA as DnsSRVRecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("priority");
@@ -2628,7 +2628,7 @@ namespace DnsServerCore
case DnsResourceRecordType.CAA:
{
DnsCAARecord rdata = resourceRecord.RDATA as DnsCAARecord;
DnsCAARecord rdata = record.RDATA as DnsCAARecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("flags");
@@ -2645,7 +2645,7 @@ namespace DnsServerCore
case DnsResourceRecordType.ANAME:
{
DnsANAMERecord rdata = resourceRecord.RDATA as DnsANAMERecord;
DnsANAMERecord rdata = record.RDATA as DnsANAMERecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("value");
@@ -2656,7 +2656,7 @@ namespace DnsServerCore
case DnsResourceRecordType.FWD:
{
DnsForwarderRecord rdata = resourceRecord.RDATA as DnsForwarderRecord;
DnsForwarderRecord rdata = record.RDATA as DnsForwarderRecord;
if (rdata != null)
{
jsonWriter.WritePropertyName("protocol");
@@ -2674,7 +2674,7 @@ namespace DnsServerCore
using (MemoryStream mS = new MemoryStream())
{
resourceRecord.RDATA.WriteTo(mS, new List<DnsDomainOffset>());
record.RDATA.WriteTo(mS, new List<DnsDomainOffset>());
jsonWriter.WriteValue(Convert.ToBase64String(mS.ToArray()));
}