Add DNS provider for LuaDNS (#1135)

README.md

@@ -56,13 +56,14 @@ Detailed documentation is available [here](https://go-acme.github.io/lego/dns).
 | [Glesys](https://go-acme.github.io/lego/dns/glesys/)                            | [Go Daddy](https://go-acme.github.io/lego/dns/godaddy/)                         | [Google Cloud](https://go-acme.github.io/lego/dns/gcloud/)                      | [Hetzner](https://go-acme.github.io/lego/dns/hetzner/)                          |
 | [Hosting.de](https://go-acme.github.io/lego/dns/hostingde/)                     | [HTTP request](https://go-acme.github.io/lego/dns/httpreq/)                     | [Internet Initiative Japan](https://go-acme.github.io/lego/dns/iij/)            | [INWX](https://go-acme.github.io/lego/dns/inwx/)                                |
 | [Joker](https://go-acme.github.io/lego/dns/joker/)                              | [Joohoi's ACME-DNS](https://go-acme.github.io/lego/dns/acme-dns/)               | [Linode (deprecated)](https://go-acme.github.io/lego/dns/linode/)               | [Linode (v4)](https://go-acme.github.io/lego/dns/linodev4/)                     |
-| [Liquid Web](https://go-acme.github.io/lego/dns/liquidweb/)                     | [Manual](https://go-acme.github.io/lego/dns/manual/)                            | [MyDNS.jp](https://go-acme.github.io/lego/dns/mydnsjp/)                         | [MythicBeasts](https://go-acme.github.io/lego/dns/mythicbeasts/)                |
+| [Liquid Web](https://go-acme.github.io/lego/dns/liquidweb/)                     | [LuaDNS](https://go-acme.github.io/lego/dns/luadns/)                            | [Manual](https://go-acme.github.io/lego/dns/manual/)                            | [MyDNS.jp](https://go-acme.github.io/lego/dns/mydnsjp/)                         |
-| [Name.com](https://go-acme.github.io/lego/dns/namedotcom/)                      | [Namecheap](https://go-acme.github.io/lego/dns/namecheap/)                      | [Namesilo](https://go-acme.github.io/lego/dns/namesilo/)                        | [Netcup](https://go-acme.github.io/lego/dns/netcup/)                            |
+| [MythicBeasts](https://go-acme.github.io/lego/dns/mythicbeasts/)                | [Name.com](https://go-acme.github.io/lego/dns/namedotcom/)                      | [Namecheap](https://go-acme.github.io/lego/dns/namecheap/)                      | [Namesilo](https://go-acme.github.io/lego/dns/namesilo/)                        |
-| [Netlify](https://go-acme.github.io/lego/dns/netlify/)                          | [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/)                        | [NS1](https://go-acme.github.io/lego/dns/ns1/)                                  | [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/)                   |
+| [Netcup](https://go-acme.github.io/lego/dns/netcup/)                            | [Netlify](https://go-acme.github.io/lego/dns/netlify/)                          | [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/)                        | [NS1](https://go-acme.github.io/lego/dns/ns1/)                                  |
-| [Oracle Cloud](https://go-acme.github.io/lego/dns/oraclecloud/)                 | [OVH](https://go-acme.github.io/lego/dns/ovh/)                                  | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/)                            | [Rackspace](https://go-acme.github.io/lego/dns/rackspace/)                      |
+| [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/)                   | [Oracle Cloud](https://go-acme.github.io/lego/dns/oraclecloud/)                 | [OVH](https://go-acme.github.io/lego/dns/ovh/)                                  | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/)                            |
-| [reg.ru](https://go-acme.github.io/lego/dns/regru/)                             | [RFC2136](https://go-acme.github.io/lego/dns/rfc2136/)                          | [RimuHosting](https://go-acme.github.io/lego/dns/rimuhosting/)                  | [Sakura Cloud](https://go-acme.github.io/lego/dns/sakuracloud/)                 |
+| [Rackspace](https://go-acme.github.io/lego/dns/rackspace/)                      | [reg.ru](https://go-acme.github.io/lego/dns/regru/)                             | [RFC2136](https://go-acme.github.io/lego/dns/rfc2136/)                          | [RimuHosting](https://go-acme.github.io/lego/dns/rimuhosting/)                  |
-| [Scaleway](https://go-acme.github.io/lego/dns/scaleway/)                        | [Selectel](https://go-acme.github.io/lego/dns/selectel/)                        | [Servercow](https://go-acme.github.io/lego/dns/servercow/)                      | [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      |
+| [Sakura Cloud](https://go-acme.github.io/lego/dns/sakuracloud/)                 | [Scaleway](https://go-acme.github.io/lego/dns/scaleway/)                        | [Selectel](https://go-acme.github.io/lego/dns/selectel/)                        | [Servercow](https://go-acme.github.io/lego/dns/servercow/)                      |
-| [TransIP](https://go-acme.github.io/lego/dns/transip/)                          | [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/)                          | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/)                 | [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            |
+| [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      | [TransIP](https://go-acme.github.io/lego/dns/transip/)                          | [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/)                          | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/)                 |
-| [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              | [Yandex](https://go-acme.github.io/lego/dns/yandex/)                            | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/)                           | [Zonomi](https://go-acme.github.io/lego/dns/zonomi/)                            |
+| [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            | [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              | [Yandex](https://go-acme.github.io/lego/dns/yandex/)                            | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/)                           |
+| [Zonomi](https://go-acme.github.io/lego/dns/zonomi/)                            |                                                                                 |                                                                                 |                                                                                 |
 
 <!-- END DNS PROVIDERS LIST -->

cmd/zz_gen_cmd_dnshelp.go

@@ -58,6 +58,7 @@ func allDNSCodes() string {
 		"linode",
 		"linodev4",
 		"liquidweb",
+		"luadns",
 		"mydnsjp",
 		"mythicbeasts",
 		"namecheap",
@@ -1027,6 +1028,28 @@ func displayDNSHelp(name string) error {
 		ew.writeln()
 		ew.writeln(`More information: https://go-acme.github.io/lego/dns/liquidweb`)
 
+	case "luadns":
+		// generated from: providers/dns/luadns/luadns.toml
+		ew.writeln(`Configuration for LuaDNS.`)
+		ew.writeln(`Code:	'luadns'`)
+		ew.writeln(`Since:	'v3.7.0'`)
+		ew.writeln()
+
+		ew.writeln(`Credentials:`)
+		ew.writeln(`	- "LUADNS_API_TOKEN":	API token`)
+		ew.writeln(`	- "LUADNS_API_USERNAME":	Username (your email)`)
+		ew.writeln()
+
+		ew.writeln(`Additional Configuration:`)
+		ew.writeln(`	- "LUADNS_HTTP_TIMEOUT":	API request timeout`)
+		ew.writeln(`	- "LUADNS_POLLING_INTERVAL":	Time between DNS propagation check`)
+		ew.writeln(`	- "LUADNS_PROPAGATION_TIMEOUT":	Maximum waiting time for DNS propagation`)
+		ew.writeln(`	- "LUADNS_SEQUENCE_INTERVAL":	Interval between iteration`)
+		ew.writeln(`	- "LUADNS_TTL":	The TTL of the TXT record used for the DNS challenge`)
+
+		ew.writeln()
+		ew.writeln(`More information: https://go-acme.github.io/lego/dns/luadns`)
+
 	case "mydnsjp":
 		// generated from: providers/dns/mydnsjp/mydnsjp.toml
 		ew.writeln(`Configuration for MyDNS.jp.`)

docs/content/dns/zz_gen_luadns.md

@@ -0,0 +1,65 @@
+---
+title: "LuaDNS"
+date: 2019-03-03T16:39:46+01:00
+draft: false
+slug: luadns
+---
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/luadns/luadns.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+
+Since: v3.7.0
+
+Configuration for [LuaDNS](https://luadns.com).
+
+
+<!--more-->
+
+- Code: `luadns`
+
+Here is an example bash command using the LuaDNS provider:
+
+```bash
+LUADNS_API_USERNAME=youremail \
+LUADNS_API_TOKEN=xxxxxxxx \
+lego --dns luadns --email me@example.com --domains test.example.com run
+```
+
+
+
+
+## Credentials
+
+| Environment Variable Name | Description |
+|-----------------------|-------------|
+| `LUADNS_API_TOKEN` | API token |
+| `LUADNS_API_USERNAME` | Username (your email) |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here](/lego/dns/#configuration-and-credentials).
+
+
+## Additional Configuration
+
+| Environment Variable Name | Description |
+|--------------------------------|-------------|
+| `LUADNS_HTTP_TIMEOUT` | API request timeout |
+| `LUADNS_POLLING_INTERVAL` | Time between DNS propagation check |
+| `LUADNS_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
+| `LUADNS_SEQUENCE_INTERVAL` | Interval between iteration |
+| `LUADNS_TTL` | The TTL of the TXT record used for the DNS challenge |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here](/lego/dns/#configuration-and-credentials).
+
+
+
+
+## More information
+
+- [API documentation](https://luadns.com/api.html)
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/luadns/luadns.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->

providers/dns/dns_providers.go

@@ -49,6 +49,7 @@ import (
 	"github.com/go-acme/lego/v3/providers/dns/linode"
 	"github.com/go-acme/lego/v3/providers/dns/linodev4"
 	"github.com/go-acme/lego/v3/providers/dns/liquidweb"
+	"github.com/go-acme/lego/v3/providers/dns/luadns"
 	"github.com/go-acme/lego/v3/providers/dns/mydnsjp"
 	"github.com/go-acme/lego/v3/providers/dns/mythicbeasts"
 	"github.com/go-acme/lego/v3/providers/dns/namecheap"
@@ -173,6 +174,8 @@ func NewDNSChallengeProviderByName(name string) (challenge.Provider, error) {
 		return linodev4.NewDNSProvider()
 	case "liquidweb":
 		return liquidweb.NewDNSProvider()
+	case "luadns":
+		return luadns.NewDNSProvider()
 	case "manual":
 		return dns01.NewDNSProviderManual()
 	case "mydnsjp":

providers/dns/luadns/internal/client.go

@@ -0,0 +1,150 @@
+package internal
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+)
+
+// defaultBaseURL represents the API endpoint to call.
+const defaultBaseURL = "https://api.luadns.com"
+
+// Client Lua DNS API client.
+type Client struct {
+	HTTPClient *http.Client
+	BaseURL    string
+
+	apiUsername string
+	apiToken    string
+}
+
+// NewClient creates a new Client.
+func NewClient(apiUsername, apiToken string) *Client {
+	return &Client{
+		HTTPClient:  http.DefaultClient,
+		BaseURL:     defaultBaseURL,
+		apiUsername: apiUsername,
+		apiToken:    apiToken,
+	}
+}
+
+// ListZones gets all the hosted zones.
+// https://luadns.com/api.html#list-zones
+func (d *Client) ListZones() ([]DNSZone, error) {
+	resp, err := d.do(http.MethodGet, "/v1/zones", nil)
+	if err != nil {
+		return nil, err
+	}
+
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		bodyBytes, _ := ioutil.ReadAll(resp.Body)
+
+		var errResp errorResponse
+		err = json.Unmarshal(bodyBytes, &errResp)
+		if err == nil {
+			return nil, fmt.Errorf("api call error: Status=%v: %w", resp.StatusCode, errResp)
+		}
+
+		return nil, fmt.Errorf("api call error: Status=%d: %s", resp.StatusCode, string(bodyBytes))
+	}
+
+	var zones []DNSZone
+	err = json.NewDecoder(resp.Body).Decode(&zones)
+	if err != nil {
+		return nil, fmt.Errorf("failed to unmarshal response body: %w", err)
+	}
+
+	return zones, nil
+}
+
+// CreateRecord creates a new record in a zone.
+// https://luadns.com/api.html#create-a-record
+func (d *Client) CreateRecord(zone DNSZone, newRecord DNSRecord) (*DNSRecord, error) {
+	body, err := json.Marshal(newRecord)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal request body: %w", err)
+	}
+
+	resource := fmt.Sprintf("/v1/zones/%d/records", zone.ID)
+
+	resp, err := d.do(http.MethodPost, resource, bytes.NewReader(body))
+	if err != nil {
+		return nil, err
+	}
+
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		bodyBytes, _ := ioutil.ReadAll(resp.Body)
+
+		var errResp errorResponse
+		err = json.Unmarshal(bodyBytes, &errResp)
+		if err == nil {
+			return nil, fmt.Errorf("could not create record %v: Status=%d: %w",
+				string(body), resp.StatusCode, errResp)
+		}
+
+		return nil, fmt.Errorf("could not create record %v: Status=%d: %s",
+			string(body), resp.StatusCode, string(bodyBytes))
+	}
+
+	var record *DNSRecord
+	err = json.NewDecoder(resp.Body).Decode(&record)
+	if err != nil {
+		return nil, fmt.Errorf("failed to unmarshal response body: %w", err)
+	}
+
+	return record, nil
+}
+
+// DeleteRecord deletes a record.
+// https://luadns.com/api.html#delete-a-record
+func (d *Client) DeleteRecord(record *DNSRecord) error {
+	body, err := json.Marshal(record)
+	if err != nil {
+		return fmt.Errorf("failed to marshal request body: %w", err)
+	}
+
+	resource := fmt.Sprintf("/v1/zones/%d/records/%d", record.ZoneID, record.ID)
+
+	resp, err := d.do(http.MethodDelete, resource, bytes.NewReader(body))
+	if err != nil {
+		return err
+	}
+
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		bodyBytes, _ := ioutil.ReadAll(resp.Body)
+
+		var errResp errorResponse
+		err = json.Unmarshal(bodyBytes, &errResp)
+		if err == nil {
+			return fmt.Errorf("could not delete record %v: Status=%d: %w",
+				string(body), resp.StatusCode, errResp)
+		}
+
+		return fmt.Errorf("could not delete record %v: Status=%d: %s",
+			string(body), resp.StatusCode, string(bodyBytes))
+	}
+
+	return nil
+}
+
+func (d *Client) do(method, uri string, body io.Reader) (*http.Response, error) {
+	req, err := http.NewRequest(method, fmt.Sprintf("%s%s", d.BaseURL, uri), body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.Header.Set("Accept", "application/json")
+	req.Header.Set("Content-Type", "application/json")
+	req.SetBasicAuth(d.apiUsername, d.apiToken)
+
+	return d.HTTPClient.Do(req)
+}

providers/dns/luadns/internal/client_test.go

@@ -0,0 +1,180 @@
+package internal
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestClient_ListZones(t *testing.T) {
+	mux := http.NewServeMux()
+	server := httptest.NewServer(mux)
+	t.Cleanup(server.Close)
+
+	client := NewClient("me", "secretA")
+	client.BaseURL = server.URL
+
+	mux.HandleFunc("/v1/zones", func(rw http.ResponseWriter, req *http.Request) {
+		if req.Method != http.MethodGet {
+			http.Error(rw, fmt.Sprintf("invalid method: %s", req.Method), http.StatusMethodNotAllowed)
+			return
+		}
+
+		auth := req.Header.Get("Authorization")
+		if auth != "Basic bWU6c2VjcmV0QQ==" {
+			http.Error(rw, fmt.Sprintf("invalid authentication: %s", auth), http.StatusUnauthorized)
+		}
+
+		file, err := os.Open("./fixtures/list_zones.json")
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer func() { _ = file.Close() }()
+
+		_, err = io.Copy(rw, file)
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	})
+
+	zones, err := client.ListZones()
+	require.NoError(t, err)
+
+	expected := []DNSZone{
+		{
+			ID:             1,
+			Name:           "example.com",
+			Synced:         false,
+			QueriesCount:   0,
+			RecordsCount:   3,
+			AliasesCount:   0,
+			RedirectsCount: 0,
+			ForwardsCount:  0,
+			TemplateID:     0,
+		},
+		{
+			ID:             2,
+			Name:           "example.net",
+			Synced:         false,
+			QueriesCount:   0,
+			RecordsCount:   3,
+			AliasesCount:   0,
+			RedirectsCount: 0,
+			ForwardsCount:  0,
+			TemplateID:     0,
+		},
+	}
+
+	assert.Equal(t, expected, zones)
+}
+
+func TestClient_CreateRecord(t *testing.T) {
+	mux := http.NewServeMux()
+	server := httptest.NewServer(mux)
+	t.Cleanup(server.Close)
+
+	client := NewClient("me", "secretB")
+	client.BaseURL = server.URL
+
+	mux.HandleFunc("/v1/zones/1/records", func(rw http.ResponseWriter, req *http.Request) {
+		if req.Method != http.MethodPost {
+			http.Error(rw, fmt.Sprintf("invalid method: %s", req.Method), http.StatusMethodNotAllowed)
+			return
+		}
+
+		auth := req.Header.Get("Authorization")
+		if auth != "Basic bWU6c2VjcmV0Qg==" {
+			http.Error(rw, fmt.Sprintf("invalid authentication: %s", auth), http.StatusUnauthorized)
+		}
+
+		file, err := os.Open("./fixtures/create_record.json")
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer func() { _ = file.Close() }()
+
+		_, err = io.Copy(rw, file)
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	})
+
+	zone := DNSZone{ID: 1}
+
+	record := DNSRecord{
+		Name:    "example.com.",
+		Type:    "MX",
+		Content: "10 mail.example.com.",
+		TTL:     300,
+	}
+
+	newRecord, err := client.CreateRecord(zone, record)
+	require.NoError(t, err)
+
+	expected := &DNSRecord{
+		ID:      100,
+		Name:    "example.com.",
+		Type:    "MX",
+		Content: "10 mail.example.com.",
+		TTL:     300,
+		ZoneID:  1,
+	}
+
+	assert.Equal(t, expected, newRecord)
+}
+
+func TestClient_DeleteRecord(t *testing.T) {
+	mux := http.NewServeMux()
+	server := httptest.NewServer(mux)
+	t.Cleanup(server.Close)
+
+	client := NewClient("me", "secretC")
+	client.BaseURL = server.URL
+
+	mux.HandleFunc("/v1/zones/1/records/2", func(rw http.ResponseWriter, req *http.Request) {
+		if req.Method != http.MethodDelete {
+			http.Error(rw, fmt.Sprintf("invalid method: %s", req.Method), http.StatusMethodNotAllowed)
+			return
+		}
+
+		auth := req.Header.Get("Authorization")
+		if auth != "Basic bWU6c2VjcmV0Qw==" {
+			http.Error(rw, fmt.Sprintf("invalid authentication: %s", auth), http.StatusUnauthorized)
+		}
+
+		file, err := os.Open("./fixtures/delete_record.json")
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer func() { _ = file.Close() }()
+
+		_, err = io.Copy(rw, file)
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	})
+
+	record := &DNSRecord{
+		ID:      2,
+		Name:    "example.com.",
+		Type:    "MX",
+		Content: "10 mail.example.com.",
+		TTL:     300,
+		ZoneID:  1,
+	}
+
+	err := client.DeleteRecord(record)
+	require.NoError(t, err)
+}

providers/dns/luadns/internal/fixtures/create_record.json

@@ -0,0 +1,10 @@
+{
+  "id": 100,
+  "name": "example.com.",
+  "type": "MX",
+  "content": "10 mail.example.com.",
+  "ttl": 300,
+  "zone_id": 1,
+  "created_at": "2015-01-17T14:04:35.251785849Z",
+  "updated_at": "2015-01-17T14:04:35.251785972Z"
+}

providers/dns/luadns/internal/fixtures/delete_record.json

@@ -0,0 +1,10 @@
+{
+  "id": 100,
+  "name": "example.com.",
+  "type": "MX",
+  "content": "10 mail.example.com.",
+  "ttl": 300,
+  "zone_id": 1,
+  "created_at": "2015-01-17T14:04:35.251785849Z",
+  "updated_at": "2015-01-17T14:04:35.251785972Z"
+}

providers/dns/luadns/internal/fixtures/list_zones.json

@@ -0,0 +1,24 @@
+[
+  {
+    "id": 1,
+    "name": "example.com",
+    "synced": false,
+    "queries_count": 0,
+    "records_count": 3,
+    "aliases_count": 0,
+    "redirects_count": 0,
+    "forwards_count": 0,
+    "template_id": 0
+  },
+  {
+    "id": 2,
+    "name": "example.net",
+    "synced": false,
+    "queries_count": 0,
+    "records_count": 3,
+    "aliases_count": 0,
+    "redirects_count": 0,
+    "forwards_count": 0,
+    "template_id": 0
+  }
+]

providers/dns/luadns/internal/model.go

@@ -0,0 +1,36 @@
+package internal
+
+import "fmt"
+
+type errorResponse struct {
+	Status    string `json:"status"`
+	RequestID string `json:"request_id"`
+	Message   string `json:"message"`
+}
+
+func (e errorResponse) Error() string {
+	return fmt.Sprintf("status=%s, message=%s", e.Status, e.Message)
+}
+
+// DNSZone a DNS zone.
+type DNSZone struct {
+	ID             int    `json:"id"`
+	Name           string `json:"name,omitempty"`
+	Synced         bool   `json:"synced,omitempty"`
+	QueriesCount   int    `json:"queries_count,omitempty"`
+	RecordsCount   int    `json:"records_count,omitempty"`
+	AliasesCount   int    `json:"aliases_count,omitempty"`
+	RedirectsCount int    `json:"redirects_count,omitempty"`
+	ForwardsCount  int    `json:"forwards_count,omitempty"`
+	TemplateID     int    `json:"template_id,omitempty"`
+}
+
+// DNSRecord a DNS record.
+type DNSRecord struct {
+	ID      int    `json:"id,omitempty"`
+	Name    string `json:"name,omitempty"`
+	Type    string `json:"type,omitempty"`
+	Content string `json:"content,omitempty"`
+	TTL     int    `json:"ttl,omitempty"`
+	ZoneID  int    `json:"zone_id,omitempty"`
+}

providers/dns/luadns/luadns.go

@@ -0,0 +1,184 @@
+// Package luadns implements a DNS provider for solving the DNS-01 challenge using LuaDNS.
+package luadns
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-acme/lego/v3/challenge/dns01"
+	"github.com/go-acme/lego/v3/platform/config/env"
+	"github.com/go-acme/lego/v3/providers/dns/luadns/internal"
+)
+
+const minTTL = 300
+
+// Environment variables names.
+const (
+	envNamespace = "LUADNS_"
+
+	EnvAPIUsername = envNamespace + "API_USERNAME"
+	EnvAPIToken    = envNamespace + "API_TOKEN"
+
+	EnvTTL                = envNamespace + "TTL"
+	EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
+	EnvPollingInterval    = envNamespace + "POLLING_INTERVAL"
+	EnvHTTPTimeout        = envNamespace + "HTTP_TIMEOUT"
+)
+
+// Config is used to configure the creation of the DNSProvider.
+type Config struct {
+	APIUsername        string
+	APIToken           string
+	PropagationTimeout time.Duration
+	PollingInterval    time.Duration
+	TTL                int
+	HTTPClient         *http.Client
+}
+
+// NewDefaultConfig returns a default configuration for the DNSProvider.
+func NewDefaultConfig() *Config {
+	return &Config{
+		TTL:                env.GetOrDefaultInt(EnvTTL, minTTL),
+		PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, 120*time.Second),
+		PollingInterval:    env.GetOrDefaultSecond(EnvPollingInterval, 2*time.Second),
+		HTTPClient: &http.Client{
+			Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 30*time.Second),
+		},
+	}
+}
+
+// DNSProvider implements the challenge.Provider interface.
+type DNSProvider struct {
+	config *Config
+	client *internal.Client
+
+	recordsMu sync.Mutex
+	records   map[string]*internal.DNSRecord
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for LuaDNS.
+// Credentials must be passed in the environment variables:
+// LUADNS_API_USERNAME and LUADNS_API_TOKEN.
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get(EnvAPIUsername, EnvAPIToken)
+	if err != nil {
+		return nil, fmt.Errorf("luadns: %w", err)
+	}
+
+	config := NewDefaultConfig()
+	config.APIUsername = values[EnvAPIUsername]
+	config.APIToken = values[EnvAPIToken]
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for LuaDNS.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("luadns: the configuration of the DNS provider is nil")
+	}
+
+	if config.APIUsername == "" || config.APIToken == "" {
+		return nil, errors.New("luadns: credentials missing")
+	}
+
+	if config.TTL < minTTL {
+		return nil, fmt.Errorf("luadns: invalid TTL, TTL (%d) must be greater than %d", config.TTL, minTTL)
+	}
+
+	client := internal.NewClient(config.APIUsername, config.APIToken)
+
+	if config.HTTPClient != nil {
+		client.HTTPClient = config.HTTPClient
+	}
+
+	return &DNSProvider{
+		config:    config,
+		client:    client,
+		recordsMu: sync.Mutex{},
+		records:   make(map[string]*internal.DNSRecord),
+	}, nil
+}
+
+// Timeout returns the timeout and interval to use when checking for DNS propagation.
+// Adjusting here to cope with spikes in propagation times.
+func (d *DNSProvider) Timeout() (timeout, interval time.Duration) {
+	return d.config.PropagationTimeout, d.config.PollingInterval
+}
+
+// Present creates a TXT record using the specified parameters.
+func (d *DNSProvider) Present(domain, token, keyAuth string) error {
+	fqdn, value := dns01.GetRecord(domain, keyAuth)
+
+	zones, err := d.client.ListZones()
+	if err != nil {
+		return fmt.Errorf("luadns: failed to get zones: %w", err)
+	}
+
+	zone := findZone(zones, domain)
+	if zone == nil {
+		return fmt.Errorf("luadns: no matching zone found for domain %s", domain)
+	}
+
+	newRecord := internal.DNSRecord{
+		Name:    fqdn,
+		Type:    "TXT",
+		Content: value,
+		TTL:     d.config.TTL,
+	}
+
+	record, err := d.client.CreateRecord(*zone, newRecord)
+	if err != nil {
+		return fmt.Errorf("luadns: failed to create record: %w", err)
+	}
+
+	d.recordsMu.Lock()
+	d.records[token] = record
+	d.recordsMu.Unlock()
+
+	return nil
+}
+
+// CleanUp removes the TXT record matching the specified parameters.
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	fqdn, _ := dns01.GetRecord(domain, keyAuth)
+
+	d.recordsMu.Lock()
+	record, ok := d.records[token]
+	d.recordsMu.Unlock()
+
+	if !ok {
+		return fmt.Errorf("luadns: unknown record ID for '%s'", fqdn)
+	}
+
+	err := d.client.DeleteRecord(record)
+	if err != nil {
+		return fmt.Errorf("luadns: failed to delete record: %w", err)
+	}
+
+	// Delete record from map
+	d.recordsMu.Lock()
+	delete(d.records, token)
+	d.recordsMu.Unlock()
+
+	return nil
+}
+
+func findZone(zones []internal.DNSZone, domain string) *internal.DNSZone {
+	var result *internal.DNSZone
+
+	for _, zone := range zones {
+		zone := zone
+		if zone.Name != "" && strings.HasSuffix(domain, zone.Name) {
+			if result == nil || len(zone.Name) > len(result.Name) {
+				result = &zone
+			}
+		}
+	}
+
+	return result
+}

providers/dns/luadns/luadns.toml

@@ -0,0 +1,25 @@
+Name = "LuaDNS"
+Description = ''''''
+URL = "https://luadns.com"
+Code = "luadns"
+Since = "v3.7.0"
+
+Example = '''
+LUADNS_API_USERNAME=youremail \
+LUADNS_API_TOKEN=xxxxxxxx \
+lego --dns luadns --email me@example.com --domains test.example.com run
+'''
+
+[Configuration]
+  [Configuration.Credentials]
+    LUADNS_API_USERNAME = "Username (your email)"
+    LUADNS_API_TOKEN = "API token"
+  [Configuration.Additional]
+    LUADNS_POLLING_INTERVAL = "Time between DNS propagation check"
+    LUADNS_PROPAGATION_TIMEOUT = "Maximum waiting time for DNS propagation"
+    LUADNS_TTL = "The TTL of the TXT record used for the DNS challenge"
+    LUADNS_HTTP_TIMEOUT = "API request timeout"
+    LUADNS_SEQUENCE_INTERVAL = "Interval between iteration"
+
+[Links]
+  API = "https://luadns.com/api.html"

providers/dns/luadns/luadns_test.go

@@ -0,0 +1,221 @@
+package luadns
+
+import (
+	"testing"
+
+	"github.com/go-acme/lego/v3/platform/tester"
+	"github.com/go-acme/lego/v3/providers/dns/luadns/internal"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const envDomain = envNamespace + "DOMAIN"
+
+var envTest = tester.NewEnvTest(
+	EnvAPIUsername,
+	EnvAPIToken).
+	WithDomain(envDomain)
+
+func TestNewDNSProvider(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		envVars  map[string]string
+		expected string
+	}{
+		{
+			desc: "success",
+			envVars: map[string]string{
+				EnvAPIUsername: "123",
+				EnvAPIToken:    "456",
+			},
+		},
+		{
+			desc: "missing credentials",
+			envVars: map[string]string{
+				EnvAPIUsername: "",
+				EnvAPIToken:    "",
+			},
+			expected: "luadns: some credentials information are missing: LUADNS_API_USERNAME,LUADNS_API_TOKEN",
+		},
+		{
+			desc: "missing username",
+			envVars: map[string]string{
+				EnvAPIUsername: "",
+				EnvAPIToken:    "456",
+			},
+			expected: "luadns: some credentials information are missing: LUADNS_API_USERNAME",
+		},
+		{
+			desc: "missing api token",
+			envVars: map[string]string{
+				EnvAPIUsername: "123",
+				EnvAPIToken:    "",
+			},
+			expected: "luadns: some credentials information are missing: LUADNS_API_TOKEN",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			defer envTest.RestoreEnv()
+			envTest.ClearEnv()
+
+			envTest.Apply(test.envVars)
+
+			p, err := NewDNSProvider()
+
+			if len(test.expected) == 0 {
+				require.NoError(t, err)
+				require.NotNil(t, p)
+				require.NotNil(t, p.config)
+				require.NotNil(t, p.client)
+			} else {
+				require.EqualError(t, err, test.expected)
+			}
+		})
+	}
+}
+
+func TestNewDNSProviderConfig(t *testing.T) {
+	testCases := []struct {
+		desc      string
+		apiKey    string
+		apiSecret string
+		tll       int
+		expected  string
+	}{
+		{
+			desc:      "success",
+			apiKey:    "123",
+			apiSecret: "456",
+			tll:       minTTL,
+		},
+		{
+			desc:     "missing credentials",
+			tll:      minTTL,
+			expected: "luadns: credentials missing",
+		},
+		{
+			desc:      "missing username",
+			apiSecret: "456",
+			tll:       minTTL,
+			expected:  "luadns: credentials missing",
+		},
+		{
+			desc:     "missing api token",
+			apiKey:   "123",
+			tll:      minTTL,
+			expected: "luadns: credentials missing",
+		},
+		{
+			desc:      "invalid TTL",
+			apiKey:    "123",
+			apiSecret: "456",
+			tll:       30,
+			expected:  "luadns: invalid TTL, TTL (30) must be greater than 300",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			config := NewDefaultConfig()
+			config.APIUsername = test.apiKey
+			config.APIToken = test.apiSecret
+			config.TTL = test.tll
+
+			p, err := NewDNSProviderConfig(config)
+
+			if len(test.expected) == 0 {
+				require.NoError(t, err)
+				require.NotNil(t, p)
+				require.NotNil(t, p.config)
+				require.NotNil(t, p.client)
+			} else {
+				require.EqualError(t, err, test.expected)
+			}
+		})
+	}
+}
+
+func TestDNSProvider_findZone(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		domain   string
+		zones    []internal.DNSZone
+		expected *internal.DNSZone
+	}{
+		{
+			desc:   "simple domain",
+			domain: "example.org",
+			zones: []internal.DNSZone{
+				{Name: "example.org"},
+				{Name: "example.com"},
+			},
+			expected: &internal.DNSZone{Name: "example.org"},
+		},
+		{
+			desc:   "sub domain",
+			domain: "aaa.example.org",
+			zones: []internal.DNSZone{
+				{Name: "example.org"},
+				{Name: "aaa.example.org"},
+				{Name: "bbb.example.org"},
+				{Name: "example.com"},
+			},
+			expected: &internal.DNSZone{Name: "aaa.example.org"},
+		},
+		{
+			desc:   "empty zone name",
+			domain: "example.org",
+			zones: []internal.DNSZone{
+				{},
+			},
+		},
+		{
+			desc:   "not found",
+			domain: "example.org",
+			zones: []internal.DNSZone{
+				{Name: "example.net"},
+				{Name: "aaa.example.net"},
+				{Name: "bbb.example.net"},
+				{Name: "example.com"},
+			},
+		},
+	}
+
+	for _, test := range testCases {
+		test := test
+		t.Run(test.desc, func(t *testing.T) {
+			t.Parallel()
+
+			zone := findZone(test.zones, test.domain)
+			assert.Equal(t, test.expected, zone)
+		})
+	}
+}
+
+func TestLivePresent(t *testing.T) {
+	if !envTest.IsLiveTest() {
+		t.Skip("skipping live test")
+	}
+
+	envTest.RestoreEnv()
+	provider, err := NewDNSProvider()
+	require.NoError(t, err)
+
+	err = provider.Present(envTest.GetDomain(), "", "123d==")
+	require.NoError(t, err)
+}
+
+func TestLiveCleanUp(t *testing.T) {
+	if !envTest.IsLiveTest() {
+		t.Skip("skipping live test")
+	}
+
+	envTest.RestoreEnv()
+	provider, err := NewDNSProvider()
+	require.NoError(t, err)
+
+	err = provider.CleanUp(envTest.GetDomain(), "", "123d==")
+	require.NoError(t, err)
+}