Files
mcns/internal/grpcserver/interceptors.go
Kyle Isom f9635578e0 Implement MCNS v1: custom Go DNS server replacing CoreDNS
Replace the CoreDNS precursor with a purpose-built authoritative DNS
server. Zones and records (A, AAAA, CNAME) are stored in SQLite and
managed via synchronized gRPC + REST APIs authenticated through MCIAS.
Non-authoritative queries are forwarded to upstream resolvers with
in-memory caching.

Key components:
- DNS server (miekg/dns) with authoritative zone handling and forwarding
- gRPC + REST management APIs with MCIAS auth (mcdsl integration)
- SQLite storage with CNAME exclusivity enforcement and auto SOA serials
- 30 tests covering database CRUD, DNS resolution, and caching

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 18:37:14 -07:00

46 lines
1.3 KiB
Go

package grpcserver
import (
mcdslgrpc "git.wntrmute.dev/kyle/mcdsl/grpcserver"
)
// methodMap builds the mcdsl grpcserver.MethodMap for MCNS.
//
// Adding a new RPC without adding it to the correct map is a security
// defect — the mcdsl auth interceptor denies unmapped methods by default.
func methodMap() mcdslgrpc.MethodMap {
return mcdslgrpc.MethodMap{
Public: publicMethods(),
AuthRequired: authRequiredMethods(),
AdminRequired: adminRequiredMethods(),
}
}
func publicMethods() map[string]bool {
return map[string]bool{
"/mcns.v1.AdminService/Health": true,
"/mcns.v1.AuthService/Login": true,
}
}
func authRequiredMethods() map[string]bool {
return map[string]bool{
"/mcns.v1.AuthService/Logout": true,
"/mcns.v1.ZoneService/ListZones": true,
"/mcns.v1.ZoneService/GetZone": true,
"/mcns.v1.RecordService/ListRecords": true,
"/mcns.v1.RecordService/GetRecord": true,
}
}
func adminRequiredMethods() map[string]bool {
return map[string]bool{
"/mcns.v1.ZoneService/CreateZone": true,
"/mcns.v1.ZoneService/UpdateZone": true,
"/mcns.v1.ZoneService/DeleteZone": true,
"/mcns.v1.RecordService/CreateRecord": true,
"/mcns.v1.RecordService/UpdateRecord": true,
"/mcns.v1.RecordService/DeleteRecord": true,
}
}