Add myaddr dynamic dns provider

README.md

@@ -78,6 +78,7 @@ This readme and the [docs/](docs/) directory are **versioned** to match the prog
   - Linode
   - Loopia
   - LuaDNS
+  - Myaddr
   - Name.com
   - Namecheap
   - Netcup
@@ -243,6 +244,7 @@ Check the documentation for your DNS provider:
 - [Linode](docs/linode.md)
 - [Loopia](docs/loopia.md)
 - [LuaDNS](docs/luadns.md)
+- [Myaddr](docs/myaddr.md)
 - [Name.com](docs/name.com.md)
 - [Namecheap](docs/namecheap.md)
 - [Netcup](docs/netcup.md)

docs/myaddr.md

@@ -0,0 +1,33 @@
+# [Myaddr](https://myaddr.tools/)
+
+## Configuration
+
+### Example
+
+```json
+{
+  "settings": [
+    {
+      "provider": "myaddr",
+      "domain": "your-name.myaddr.tools",
+      "key": "key",
+      "ip_version": "ipv4",
+      "ipv6_suffix": ""
+    }
+  ]
+}
+```
+
+### Compulsory parameters
+
+- `"domain"` - the **single** domain to update; note the `key` below updates all records and subdomains for this domain. It should be `your-name*.myaddr.tools`.
+- `"key"` - the private key corresponding to the domain to update
+
+### Optional parameters
+
+- `"ip_version"` can be `ipv4` (A records), or `ipv6` (AAAA records) or `ipv4 or ipv6` (update one of the two, depending on the public ip found). It defaults to `ipv4 or ipv6`.
+- `"ipv6_suffix"` is the IPv6 interface identifier suffix to use. It can be for example `0:0:0:0:72ad:8fbb:a54e:bedd/64`. If left empty, it defaults to no suffix and the raw public IPv6 address obtained is used in the record updating.
+
+## Domain setup
+
+Claim a subdomain at [myaddr.tools](https://myaddr.tools/)

internal/params/json.go

@@ -12,6 +12,7 @@ import (
 
 	"github.com/qdm12/ddns-updater/internal/models"
 	"github.com/qdm12/ddns-updater/internal/provider"
+	"github.com/qdm12/ddns-updater/internal/provider/constants"
 	"github.com/qdm12/ddns-updater/internal/provider/utils"
 	"github.com/qdm12/ddns-updater/pkg/publicip/ipversion"
 	"golang.org/x/net/publicsuffix"
@@ -145,7 +146,10 @@ func extractAllSettings(jsonBytes []byte) (
 	return allProviders, warnings, nil
 }
 
-var ErrProviderNoLongerSupported = errors.New("provider no longer supported")
+var (
+	ErrProviderNoLongerSupported = errors.New("provider no longer supported")
+	ErrProviderMultipleDomains   = errors.New("provider does not support multiple domains")
+)
 
 func makeSettingsFromObject(common commonSettings, rawSettings json.RawMessage,
 	retroGlobalIPv6Suffix netip.Prefix) (
@@ -178,6 +182,11 @@ func makeSettingsFromObject(common commonSettings, rawSettings json.RawMessage,
 		}
 	}
 
+	if common.Provider == string(constants.Myaddr) && len(owners) > 1 {
+		return nil, nil, fmt.Errorf("%w: %s for parent domain %q",
+			ErrProviderMultipleDomains, common.Provider, domain)
+	}
+
 	if common.IPVersion == "" {
 		common.IPVersion = ipversion.IP4or6.String()
 	}

internal/provider/constants/providers.go

@@ -37,6 +37,7 @@ const (
 	Linode       models.Provider = "linode"
 	Loopia       models.Provider = "loopia"
 	LuaDNS       models.Provider = "luadns"
+	Myaddr       models.Provider = "myaddr"
 	Namecheap    models.Provider = "namecheap"
 	NameCom      models.Provider = "name.com"
 	Netcup       models.Provider = "netcup"
@@ -90,6 +91,7 @@ func ProviderChoices() []models.Provider {
 		Linode,
 		Loopia,
 		LuaDNS,
+		Myaddr,
 		Namecheap,
 		NameCom,
 		Njalla,

internal/provider/provider.go

@@ -43,6 +43,7 @@ import (
 	"github.com/qdm12/ddns-updater/internal/provider/providers/linode"
 	"github.com/qdm12/ddns-updater/internal/provider/providers/loopia"
 	"github.com/qdm12/ddns-updater/internal/provider/providers/luadns"
+	"github.com/qdm12/ddns-updater/internal/provider/providers/myaddr"
 	"github.com/qdm12/ddns-updater/internal/provider/providers/namecheap"
 	"github.com/qdm12/ddns-updater/internal/provider/providers/namecom"
 	"github.com/qdm12/ddns-updater/internal/provider/providers/netcup"
@@ -148,6 +149,8 @@ func New(providerName models.Provider, data json.RawMessage, domain, owner strin
 		return loopia.New(data, domain, owner, ipVersion, ipv6Suffix)
 	case constants.LuaDNS:
 		return luadns.New(data, domain, owner, ipVersion, ipv6Suffix)
+	case constants.Myaddr:
+		return myaddr.New(data, domain, owner, ipVersion, ipv6Suffix)
 	case constants.Namecheap:
 		return namecheap.New(data, domain, owner)
 	case constants.NameCom:

internal/provider/providers/myaddr/provider.go

@@ -0,0 +1,131 @@
+package myaddr
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/netip"
+	"net/url"
+	"strings"
+
+	"github.com/qdm12/ddns-updater/internal/models"
+	"github.com/qdm12/ddns-updater/internal/provider/constants"
+	"github.com/qdm12/ddns-updater/internal/provider/errors"
+	"github.com/qdm12/ddns-updater/internal/provider/headers"
+	"github.com/qdm12/ddns-updater/internal/provider/utils"
+	"github.com/qdm12/ddns-updater/pkg/publicip/ipversion"
+)
+
+type Provider struct {
+	domain     string
+	owner      string
+	ipVersion  ipversion.IPVersion
+	ipv6Suffix netip.Prefix
+	key        string
+}
+
+func New(data json.RawMessage, domain, owner string,
+	ipVersion ipversion.IPVersion, ipv6Suffix netip.Prefix,
+) (*Provider, error) {
+	var providerSpecificSettings struct {
+		Key string `json:"key"`
+	}
+	err := json.Unmarshal(data, &providerSpecificSettings)
+	if err != nil {
+		return nil, fmt.Errorf("json decoding provider specific settings: %w", err)
+	}
+	err = validateSettings(domain, providerSpecificSettings.Key)
+	if err != nil {
+		return nil, fmt.Errorf("validating provider specific settings: %w", err)
+	}
+	return &Provider{
+		domain:     domain,
+		owner:      owner,
+		ipVersion:  ipVersion,
+		ipv6Suffix: ipv6Suffix,
+		key:        providerSpecificSettings.Key,
+	}, nil
+}
+
+func validateSettings(domain, key string) (err error) {
+	err = utils.CheckDomain(domain)
+	if err != nil {
+		return fmt.Errorf("%w: %w", errors.ErrDomainNotValid, err)
+	}
+	if key == "" {
+		return fmt.Errorf("%w", errors.ErrKeyNotSet)
+	}
+	return nil
+}
+
+func (p *Provider) String() string {
+	return utils.ToString(p.Domain(), p.Owner(), constants.Myaddr, p.IPVersion())
+}
+
+func (p *Provider) Domain() string {
+	return p.domain
+}
+
+func (p *Provider) Owner() string {
+	return p.owner
+}
+
+func (p *Provider) BuildDomainName() string {
+	return utils.BuildDomainName(p.owner, p.domain)
+}
+
+func (p *Provider) HTML() models.HTMLRow {
+	return models.HTMLRow{
+		Domain:    fmt.Sprintf("<a href=\"http://%s\">%s</a>", p.BuildDomainName(), p.BuildDomainName()),
+		Owner:     p.Owner(),
+		Provider:  "<a href=\"https://myaddr.tools/\">myaddr</a>",
+		IPVersion: p.IPVersion().String(),
+	}
+}
+
+func (p *Provider) Proxied() bool {
+	return false
+}
+
+func (p *Provider) IPVersion() ipversion.IPVersion {
+	return p.ipVersion
+}
+
+func (p *Provider) IPv6Suffix() netip.Prefix {
+	return p.ipv6Suffix
+}
+
+func (p *Provider) Update(ctx context.Context, client *http.Client, ip netip.Addr) (netip.Addr, error) {
+	u := &url.URL{
+		Scheme: "https",
+		Host:   "myaddr.tools",
+		Path:   "/update",
+	}
+	v := url.Values{}
+	v.Set("key", p.key)
+	v.Set("ip", ip.String())
+	buffer := strings.NewReader(v.Encode())
+	request, err := http.NewRequestWithContext(ctx, http.MethodPost, u.String(), buffer)
+	if err != nil {
+		return netip.Addr{}, fmt.Errorf("creating http request: %w", err)
+	}
+	headers.SetContentType(request, "application/x-www-form-urlencoded")
+	headers.SetUserAgent(request)
+	response, err := client.Do(request)
+	if err != nil {
+		return netip.Addr{}, err
+	}
+	defer response.Body.Close()
+	switch response.StatusCode {
+	case http.StatusOK:
+		return ip, nil
+	case http.StatusBadRequest:
+		return netip.Addr{}, fmt.Errorf("%w: %s", errors.ErrBadRequest, utils.BodyToSingleLine(response.Body))
+	case http.StatusNotFound:
+		return netip.Addr{}, fmt.Errorf("%w: %s", errors.ErrKeyNotValid, utils.BodyToSingleLine(response.Body))
+	default:
+		return netip.Addr{}, fmt.Errorf("%w: %d: %s",
+			errors.ErrHTTPStatusNotValid, response.StatusCode, utils.BodyToSingleLine(response.Body))
+	}
+}