realtimeregister: Modernize record conversion

[TomOnTime]

Dear @PJEilers. I could use your help. I'm doing upgrades to the code base and I have no way to test your provider. Please run the integration test and let me know the result. How to run integration tests is here: https://docs.dnscontrol.org/developer-info/integration-tests

Summary

• build downloaded records with modern record factories
• remove legacy DNS name expansion and type-specific setters
• serialize multi-field records from modern RDATA

Validation

• ../../bin/is_modern.sh (Steps 1-7 clean)
• go test ./providers/realtimeregister
• bin/generate-all.sh
• go test ./...

[PJEilers]

Will take a look at it today

[PJEilers]

integration_test_rtr.txt

These are the results of the integration tests. One test is failing:

--- FAIL: TestDNSProviders/test-abcdefghi-123.com/26:NS_only_APEX:Single_NS_at_apex (0.34s)

This test can be disabled however as this operation is not allowed at RTR: Cannot be a SOA level record for type NS

[PJEilers]

see prev comment

[TomOnTime]

integration_test_rtr.txt

These are the results of the integration tests. One test is failing:

--- FAIL: TestDNSProviders/test-abcdefghi-123.com/26:NS_only_APEX:Single_NS_at_apex (0.34s)

This test can be disabled however as this operation is not allowed at RTR: Cannot be a SOA level record for type NS

Thanks! i've disabled it.

diff --git a/integrationTest/integration_test.go b/integrationTest/integration_test.go
index 52c49022..05a4a502 100644
--- a/integrationTest/integration_test.go
+++ b/integrationTest/integration_test.go
@@ -489,6 +489,7 @@ func makeTests() []*TestGroup {
                                "NAMEDOTCOM",        // "Ignores @ for NS records"
                                "NETCUP",            // NS records not currently supported.
                                "PORKBUN",           // Record ignored.
+                               "REALTIMEREGISTER",  // "Cannot be a SOA level record for type NS"
                                "SAKURACLOUD",       // Silently ignores requests to remove NS at @.
                                "TRANSIP",           // "it is not allowed to have an NS for an @ record"
                                "VERCEL",            // "invalid_name - Cannot set NS records at the root level. Only subdomain NS records are supported"