Add support for GCore DNS

Author: James Mills

.gitignore

@@ -16,6 +16,8 @@ _testmain.go
 *.exe~
 *.test
 *.prof
+**/.envrc
+**/.DS_Store
 
 # Tests coverage
 *.out

go.mod

@@ -1,6 +1,8 @@
 module github.com/foxcpp/maddy
 
-go 1.23
+go 1.23.1
+
+toolchain go1.23.5
 
 require (
 	blitiri.com.ar/go/spf v1.5.1
@@ -34,6 +36,7 @@ require (
 	github.com/libdns/cloudflare v0.1.1
 	github.com/libdns/digitalocean v0.0.0-20230728223659-4f9064657aea
 	github.com/libdns/gandi v1.0.3
+	github.com/libdns/gcore v0.0.0-20250127070537-4a9d185c9d20
 	github.com/libdns/googleclouddns v1.1.0
 	github.com/libdns/hetzner v0.0.1
 	github.com/libdns/leaseweb v0.4.0
@@ -64,6 +67,7 @@ require (
 	cloud.google.com/go/compute/metadata v0.6.0 // indirect
 	filippo.io/edwards25519 v1.1.0 // indirect
 	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
+	github.com/G-Core/gcore-dns-sdk-go v0.2.9 // indirect
 	github.com/aws/aws-sdk-go v1.44.40 // indirect
 	github.com/aws/aws-sdk-go-v2 v1.33.0 // indirect
 	github.com/aws/aws-sdk-go-v2/config v1.29.1 // indirect

go.sum

@@ -190,6 +190,8 @@ github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358/go.mod h1:chxPXzS
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/G-Core/gcore-dns-sdk-go v0.2.9 h1:LMMZIRX8y3aJJuAviNSpFmLbovZUw+6Om+8VElp1F90=
+github.com/G-Core/gcore-dns-sdk-go v0.2.9/go.mod h1:35t795gOfzfVanhzkFyUXEzaBuMXwETmJldPpP28MN4=
 github.com/GehirnInc/crypt v0.0.0-20230320061759-8cc1b52080c5 h1:IEjq88XO4PuBDcvmjQJcQGg+w+UaafSy8G5Kcb5tBhI=
 github.com/GehirnInc/crypt v0.0.0-20230320061759-8cc1b52080c5/go.mod h1:exZ0C/1emQJAw5tHOaUDyY1ycttqBAPcxuzf7QbY6ec=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
@@ -521,6 +523,8 @@ github.com/libdns/cloudflare v0.1.1 h1:FVPfWwP8zZCqj268LZjmkDleXlHPlFU9KC4OJ3yn0
 github.com/libdns/cloudflare v0.1.1/go.mod h1:9VK91idpOjg6v7/WbjkEW49bSCxj00ALesIFDhJ8PBU=
 github.com/libdns/digitalocean v0.0.0-20230728223659-4f9064657aea h1:IGlMNZCUp8Ho7NYYorpP5ZJgg2mFXARs6eHs/pSqFkA=
 github.com/libdns/digitalocean v0.0.0-20230728223659-4f9064657aea/go.mod h1:B2TChhOTxvBflpRTHlguXWtwa1Ha5WI6JkB6aCViM+0=
+github.com/libdns/gcore v0.0.0-20250127070537-4a9d185c9d20 h1:bQwFw+C9sX/zYZlV53ey0KnNkxrfWYIFpvptuAVhJ1Y=
+github.com/libdns/gcore v0.0.0-20250127070537-4a9d185c9d20/go.mod h1:JGoT1mbmqQwtYQqN5F/vGc9j4TTTMKw/hDm5vXADHUI=
 github.com/libdns/googleclouddns v1.1.0 h1:murPR1LfTZZObLV2OLxUVmymWH25glkMFKpDjkk2m0E=
 github.com/libdns/googleclouddns v1.1.0/go.mod h1:3tzd056dfqKlf71V8Oy19En4WjJ3ybyuWx6P9bQSCIw=
 github.com/libdns/hetzner v0.0.1 h1:WsmcsOKnfpKmzwhfyqhGQEIlEeEaEUvb7ezoJgBKaqU=

internal/libdns/gcore.go

@@ -0,0 +1,34 @@
+//go:build libdns_gcore || !libdns_separate
+// +build libdns_gcore !libdns_separate
+
+package libdns
+
+import (
+	"fmt"
+
+	"github.com/foxcpp/maddy/framework/config"
+	"github.com/foxcpp/maddy/framework/module"
+	"github.com/libdns/gcore"
+)
+
+func init() {
+	module.Register("libdns.gcore", func(modName, instName string, _, _ []string) (module.Module, error) {
+		p := gcore.Provider{}
+		return &ProviderModule{
+			RecordDeleter:  &p,
+			RecordAppender: &p,
+			setConfig: func(c *config.Map) {
+				c.String("api_key", false, false, "", &p.APIKey)
+			},
+			afterConfig: func() error {
+				if p.APIKey == "" {
+					return fmt.Errorf("libdns.gcore: api_key should be specified")
+				}
+				return nil
+			},
+
+			instName: instName,
+			modName:  modName,
+		}, nil
+	})
+}