Add DNS provider for hosttech (#1447)

README.md

@@ -56,20 +56,20 @@ Detailed documentation is available [here](https://go-acme.github.io/lego/dns).
 | [Dyn](https://go-acme.github.io/lego/dns/dyn/)                                  | [Dynu](https://go-acme.github.io/lego/dns/dynu/)                                | [EasyDNS](https://go-acme.github.io/lego/dns/easydns/)                          | [Exoscale](https://go-acme.github.io/lego/dns/exoscale/)                        |
 | [External program](https://go-acme.github.io/lego/dns/exec/)                    | [freemyip.com](https://go-acme.github.io/lego/dns/freemyip/)                    | [Gandi Live DNS (v5)](https://go-acme.github.io/lego/dns/gandiv5/)              | [Gandi](https://go-acme.github.io/lego/dns/gandi/)                              |
 | [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/)                     | [Hurricane Electric DNS](https://go-acme.github.io/lego/dns/hurricane/)         | [HyperOne](https://go-acme.github.io/lego/dns/hyperone/)                        |
+| [Hosting.de](https://go-acme.github.io/lego/dns/hostingde/)                     | [Hosttech](https://go-acme.github.io/lego/dns/hosttech/)                        | [HTTP request](https://go-acme.github.io/lego/dns/httpreq/)                     | [Hurricane Electric DNS](https://go-acme.github.io/lego/dns/hurricane/)         |
-| [Infoblox](https://go-acme.github.io/lego/dns/infoblox/)                        | [Infomaniak](https://go-acme.github.io/lego/dns/infomaniak/)                    | [Internet Initiative Japan](https://go-acme.github.io/lego/dns/iij/)            | [Internet.bs](https://go-acme.github.io/lego/dns/internetbs/)                   |
+| [HyperOne](https://go-acme.github.io/lego/dns/hyperone/)                        | [Infoblox](https://go-acme.github.io/lego/dns/infoblox/)                        | [Infomaniak](https://go-acme.github.io/lego/dns/infomaniak/)                    | [Internet Initiative Japan](https://go-acme.github.io/lego/dns/iij/)            |
-| [INWX](https://go-acme.github.io/lego/dns/inwx/)                                | [Ionos](https://go-acme.github.io/lego/dns/ionos/)                              | [Joker](https://go-acme.github.io/lego/dns/joker/)                              | [Joohoi's ACME-DNS](https://go-acme.github.io/lego/dns/acme-dns/)               |
+| [Internet.bs](https://go-acme.github.io/lego/dns/internetbs/)                   | [INWX](https://go-acme.github.io/lego/dns/inwx/)                                | [Ionos](https://go-acme.github.io/lego/dns/ionos/)                              | [Joker](https://go-acme.github.io/lego/dns/joker/)                              |
-| [Linode (v4)](https://go-acme.github.io/lego/dns/linode/)                       | [Liquid Web](https://go-acme.github.io/lego/dns/liquidweb/)                     | [Loopia](https://go-acme.github.io/lego/dns/loopia/)                            | [LuaDNS](https://go-acme.github.io/lego/dns/luadns/)                            |
+| [Joohoi's ACME-DNS](https://go-acme.github.io/lego/dns/acme-dns/)               | [Linode (v4)](https://go-acme.github.io/lego/dns/linode/)                       | [Liquid Web](https://go-acme.github.io/lego/dns/liquidweb/)                     | [Loopia](https://go-acme.github.io/lego/dns/loopia/)                            |
-| [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/)                | [Name.com](https://go-acme.github.io/lego/dns/namedotcom/)                      |
+| [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/)                         | [MythicBeasts](https://go-acme.github.io/lego/dns/mythicbeasts/)                |
-| [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/)                            | [Netlify](https://go-acme.github.io/lego/dns/netlify/)                          |
+| [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/)                            |
-| [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/)                        | [Njalla](https://go-acme.github.io/lego/dns/njalla/)                            | [NS1](https://go-acme.github.io/lego/dns/ns1/)                                  | [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/)                   |
+| [Netlify](https://go-acme.github.io/lego/dns/netlify/)                          | [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/)                        | [Njalla](https://go-acme.github.io/lego/dns/njalla/)                            | [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/)                                  | [Porkbun](https://go-acme.github.io/lego/dns/porkbun/)                          | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/)                            |
+| [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/)                                  | [Porkbun](https://go-acme.github.io/lego/dns/porkbun/)                          |
-| [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/)                  |
+| [PowerDNS](https://go-acme.github.io/lego/dns/pdns/)                            | [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/)                          |
-| [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/)                      |
+| [RimuHosting](https://go-acme.github.io/lego/dns/rimuhosting/)                  | [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/)                        |
-| [Simply.com](https://go-acme.github.io/lego/dns/simply/)                        | [Sonic](https://go-acme.github.io/lego/dns/sonic/)                              | [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      | [TransIP](https://go-acme.github.io/lego/dns/transip/)                          |
+| [Servercow](https://go-acme.github.io/lego/dns/servercow/)                      | [Simply.com](https://go-acme.github.io/lego/dns/simply/)                        | [Sonic](https://go-acme.github.io/lego/dns/sonic/)                              | [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      |
-| [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/)                          | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/)                 | [VinylDNS](https://go-acme.github.io/lego/dns/vinyldns/)                        | [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            |
+| [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/)                 | [VinylDNS](https://go-acme.github.io/lego/dns/vinyldns/)                        |
-| [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              | [WEDOS](https://go-acme.github.io/lego/dns/wedos/)                              | [Yandex](https://go-acme.github.io/lego/dns/yandex/)                            | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/)                           |
+| [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            | [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              | [WEDOS](https://go-acme.github.io/lego/dns/wedos/)                              | [Yandex](https://go-acme.github.io/lego/dns/yandex/)                            |
-| [Zonomi](https://go-acme.github.io/lego/dns/zonomi/)                            |                                                                                 |                                                                                 |                                                                                 |
+| [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

@@ -54,6 +54,7 @@ func allDNSCodes() string {
 		"godaddy",
 		"hetzner",
 		"hostingde",
+		"hosttech",
 		"httpreq",
 		"hurricane",
 		"hyperone",
@@ -963,6 +964,27 @@ func displayDNSHelp(name string) error {
 		ew.writeln()
 		ew.writeln(`More information: https://go-acme.github.io/lego/dns/hostingde`)
 
+	case "hosttech":
+		// generated from: providers/dns/hosttech/hosttech.toml
+		ew.writeln(`Configuration for Hosttech.`)
+		ew.writeln(`Code:	'hosttech'`)
+		ew.writeln(`Since:	'v4.5.0'`)
+		ew.writeln()
+
+		ew.writeln(`Credentials:`)
+		ew.writeln(`	- "HOSTTECH_API_KEY":	API login`)
+		ew.writeln(`	- "HOSTTECH_PASSWORD":	API password`)
+		ew.writeln()
+
+		ew.writeln(`Additional Configuration:`)
+		ew.writeln(`	- "HOSTTECH_HTTP_TIMEOUT":	API request timeout`)
+		ew.writeln(`	- "HOSTTECH_POLLING_INTERVAL":	Time between DNS propagation check`)
+		ew.writeln(`	- "HOSTTECH_PROPAGATION_TIMEOUT":	Maximum waiting time for DNS propagation`)
+		ew.writeln(`	- "HOSTTECH_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/hosttech`)
+
 	case "httpreq":
 		// generated from: providers/dns/httpreq/httpreq.toml
 		ew.writeln(`Configuration for HTTP request.`)

docs/content/dns/zz_gen_hosttech.md

@@ -0,0 +1,63 @@
+---
+title: "Hosttech"
+date: 2019-03-03T16:39:46+01:00
+draft: false
+slug: hosttech
+---
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/hosttech/hosttech.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+
+Since: v4.5.0
+
+Configuration for [Hosttech](https://www.hosttech.eu/).
+
+
+<!--more-->
+
+- Code: `hosttech`
+
+Here is an example bash command using the Hosttech provider:
+
+```bash
+HOSTTECH_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxx \
+lego --email myemail@example.com --dns hosttech --domains my.example.org run
+```
+
+
+
+
+## Credentials
+
+| Environment Variable Name | Description |
+|-----------------------|-------------|
+| `HOSTTECH_API_KEY` | API login |
+| `HOSTTECH_PASSWORD` | API password |
+
+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 |
+|--------------------------------|-------------|
+| `HOSTTECH_HTTP_TIMEOUT` | API request timeout |
+| `HOSTTECH_POLLING_INTERVAL` | Time between DNS propagation check |
+| `HOSTTECH_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
+| `HOSTTECH_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://api.ns1.hosttech.eu/api/documentation)
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/hosttech/hosttech.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->

providers/dns/dns_providers.go

@@ -45,6 +45,7 @@ import (
 	"github.com/go-acme/lego/v4/providers/dns/godaddy"
 	"github.com/go-acme/lego/v4/providers/dns/hetzner"
 	"github.com/go-acme/lego/v4/providers/dns/hostingde"
+	"github.com/go-acme/lego/v4/providers/dns/hosttech"
 	"github.com/go-acme/lego/v4/providers/dns/httpreq"
 	"github.com/go-acme/lego/v4/providers/dns/hurricane"
 	"github.com/go-acme/lego/v4/providers/dns/hyperone"
@@ -182,6 +183,8 @@ func NewDNSChallengeProviderByName(name string) (challenge.Provider, error) {
 		return hetzner.NewDNSProvider()
 	case "hostingde":
 		return hostingde.NewDNSProvider()
+	case "hosttech":
+		return hosttech.NewDNSProvider()
 	case "httpreq":
 		return httpreq.NewDNSProvider()
 	case "hurricane":

providers/dns/hosttech/hosttech.go

@@ -0,0 +1,164 @@
+// Package hosttech implements a DNS provider for solving the DNS-01 challenge using hosttech.
+package hosttech
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-acme/lego/v4/challenge/dns01"
+	"github.com/go-acme/lego/v4/platform/config/env"
+	"github.com/go-acme/lego/v4/providers/dns/hosttech/internal"
+)
+
+// Environment variables names.
+const (
+	envNamespace = "HOSTTECH_"
+
+	EnvAPIKey = envNamespace + "API_KEY"
+
+	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 {
+	APIKey             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, 3600),
+		PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, dns01.DefaultPropagationTimeout),
+		PollingInterval:    env.GetOrDefaultSecond(EnvPollingInterval, dns01.DefaultPollingInterval),
+		HTTPClient: &http.Client{
+			Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 30*time.Second),
+		},
+	}
+}
+
+// DNSProvider implements the challenge.Provider interface.
+type DNSProvider struct {
+	config *Config
+	client *internal.Client
+
+	recordIDs   map[string]int
+	recordIDsMu sync.Mutex
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for hosttech.
+// Credentials must be passed in the environment variable: HOSTTECH_API_KEY.
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get(EnvAPIKey)
+	if err != nil {
+		return nil, fmt.Errorf("hosttech: %w", err)
+	}
+
+	config := NewDefaultConfig()
+	config.APIKey = values[EnvAPIKey]
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for hosttech.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("hosttech: the configuration of the DNS provider is nil")
+	}
+
+	if config.APIKey == "" {
+		return nil, errors.New("hosttech: missing credentials")
+	}
+
+	client := internal.NewClient(config.APIKey)
+
+	if config.HTTPClient != nil {
+		client.HTTPClient = config.HTTPClient
+	}
+
+	return &DNSProvider{
+		config:    config,
+		client:    client,
+		recordIDs: map[string]int{},
+	}, 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)
+
+	authZone, err := dns01.FindZoneByFqdn(fqdn)
+	if err != nil {
+		return fmt.Errorf("hosttech: could not determine zone for domain %q: %w", domain, err)
+	}
+
+	zone, err := d.client.GetZone(dns01.UnFqdn(authZone))
+	if err != nil {
+		return fmt.Errorf("hosttech: could not find zone for domain %q (%s): %w", domain, authZone, err)
+	}
+
+	record := internal.Record{
+		Type: "TXT",
+		Name: dns01.UnFqdn(strings.TrimSuffix(fqdn, authZone)),
+		Text: value,
+		TTL:  d.config.TTL,
+	}
+
+	newRecord, err := d.client.AddRecord(strconv.Itoa(zone.ID), record)
+	if err != nil {
+		return fmt.Errorf("hosttech: %w", err)
+	}
+
+	d.recordIDsMu.Lock()
+	d.recordIDs[token] = newRecord.ID
+	d.recordIDsMu.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)
+
+	authZone, err := dns01.FindZoneByFqdn(fqdn)
+	if err != nil {
+		return fmt.Errorf("hosttech: could not determine zone for domain %q: %w", domain, err)
+	}
+
+	zone, err := d.client.GetZone(dns01.UnFqdn(authZone))
+	if err != nil {
+		return fmt.Errorf("hosttech: could not find zone for domain %q (%s): %w", domain, authZone, err)
+	}
+
+	// gets the record's unique ID from when we created it
+	d.recordIDsMu.Lock()
+	recordID, ok := d.recordIDs[token]
+	d.recordIDsMu.Unlock()
+	if !ok {
+		return fmt.Errorf("hosttech: unknown record ID for '%s' '%s'", fqdn, token)
+	}
+
+	err = d.client.DeleteRecord(strconv.Itoa(zone.ID), strconv.Itoa(recordID))
+	if err != nil {
+		return fmt.Errorf("hosttech: %w", err)
+	}
+
+	return nil
+}

providers/dns/hosttech/hosttech.toml

@@ -0,0 +1,23 @@
+Name = "Hosttech"
+Description = ''''''
+URL = "https://www.hosttech.eu/"
+Code = "hosttech"
+Since = "v4.5.0"
+
+Example = '''
+HOSTTECH_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxx \
+lego --email myemail@example.com --dns hosttech --domains my.example.org run
+'''
+
+[Configuration]
+  [Configuration.Credentials]
+    HOSTTECH_API_KEY = "API login"
+    HOSTTECH_PASSWORD = "API password"
+  [Configuration.Additional]
+    HOSTTECH_POLLING_INTERVAL = "Time between DNS propagation check"
+    HOSTTECH_PROPAGATION_TIMEOUT = "Maximum waiting time for DNS propagation"
+    HOSTTECH_TTL = "The TTL of the TXT record used for the DNS challenge"
+    HOSTTECH_HTTP_TIMEOUT = "API request timeout"
+
+[Links]
+  API = "https://api.ns1.hosttech.eu/api/documentation"

providers/dns/hosttech/hosttech_test.go

@@ -0,0 +1,115 @@
+package hosttech
+
+import (
+	"testing"
+	"time"
+
+	"github.com/go-acme/lego/v4/platform/tester"
+	"github.com/stretchr/testify/require"
+)
+
+const envDomain = envNamespace + "DOMAIN"
+
+var envTest = tester.NewEnvTest(EnvAPIKey).WithDomain(envDomain)
+
+func TestNewDNSProvider(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		envVars  map[string]string
+		expected string
+	}{
+		{
+			desc: "success",
+			envVars: map[string]string{
+				EnvAPIKey: "secret",
+			},
+		},
+		{
+			desc:     "missing API key",
+			expected: "hosttech: some credentials information are missing: HOSTTECH_API_KEY",
+		},
+	}
+
+	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 test.expected == "" {
+				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
+		expected string
+	}{
+		{
+			desc:   "success",
+			apiKey: "secret",
+		},
+		{
+			desc:     "missing API key",
+			expected: "hosttech: missing credentials",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			config := NewDefaultConfig()
+			config.APIKey = test.apiKey
+
+			p, err := NewDNSProviderConfig(config)
+
+			if test.expected == "" {
+				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 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)
+
+	time.Sleep(1 * time.Second)
+
+	err = provider.CleanUp(envTest.GetDomain(), "", "123d==")
+	require.NoError(t, err)
+}

providers/dns/hosttech/internal/client.go

@@ -0,0 +1,228 @@
+package internal
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"path"
+	"strconv"
+	"time"
+)
+
+const defaultBaseURL = "https://api.ns1.hosttech.eu/api"
+
+// Client a Hosttech client.
+type Client struct {
+	HTTPClient *http.Client
+	baseURL    *url.URL
+
+	apiKey string
+}
+
+// NewClient creates a new Client.
+func NewClient(apiKey string) *Client {
+	baseURL, _ := url.Parse(defaultBaseURL)
+
+	return &Client{
+		HTTPClient: &http.Client{Timeout: 10 * time.Second},
+		baseURL:    baseURL,
+		apiKey:     apiKey,
+	}
+}
+
+// GetZones Get a list of all zones.
+// https://api.ns1.hosttech.eu/api/documentation/#/Zones/get_api_user_v1_zones
+func (c Client) GetZones(query string, limit, offset int) ([]Zone, error) {
+	endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "user", "v1", "zones"))
+	if err != nil {
+		return nil, fmt.Errorf("parse URL: %w", err)
+	}
+
+	values := endpoint.Query()
+	values.Set("query", query)
+
+	if limit > 0 {
+		values.Set("limit", strconv.Itoa(limit))
+	}
+
+	if offset > 0 {
+		values.Set("offset", strconv.Itoa(offset))
+	}
+
+	endpoint.RawQuery = values.Encode()
+
+	req, err := http.NewRequest(http.MethodGet, endpoint.String(), nil)
+	if err != nil {
+		return nil, fmt.Errorf("create request: %w", err)
+	}
+
+	raw, err := c.do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	var r []Zone
+	err = json.Unmarshal(raw, &r)
+	if err != nil {
+		return nil, fmt.Errorf("unmarshal response data: %s: %w", string(raw), err)
+	}
+
+	return r, nil
+}
+
+// GetZone Get a single zone.
+// https://api.ns1.hosttech.eu/api/documentation/#/Zones/get_api_user_v1_zones__zoneId_
+func (c Client) GetZone(zoneID string) (*Zone, error) {
+	endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "user", "v1", "zones", zoneID))
+	if err != nil {
+		return nil, fmt.Errorf("parse URL: %w", err)
+	}
+
+	req, err := http.NewRequest(http.MethodGet, endpoint.String(), nil)
+	if err != nil {
+		return nil, fmt.Errorf("create request: %w", err)
+	}
+
+	raw, err := c.do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	var r Zone
+	err = json.Unmarshal(raw, &r)
+	if err != nil {
+		return nil, fmt.Errorf("unmarshal response data: %s: %w", string(raw), err)
+	}
+
+	return &r, nil
+}
+
+// GetRecords Returns a list of all records for the given zone.
+// https://api.ns1.hosttech.eu/api/documentation/#/Records/get_api_user_v1_zones__zoneId__records
+func (c Client) GetRecords(zoneID, recordType string) ([]Record, error) {
+	endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "user", "v1", "zones", zoneID, "records"))
+	if err != nil {
+		return nil, fmt.Errorf("parse URL: %w", err)
+	}
+
+	values := endpoint.Query()
+
+	if recordType != "" {
+		values.Set("type", recordType)
+	}
+
+	endpoint.RawQuery = values.Encode()
+
+	req, err := http.NewRequest(http.MethodGet, endpoint.String(), nil)
+	if err != nil {
+		return nil, fmt.Errorf("create request: %w", err)
+	}
+
+	raw, err := c.do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	var r []Record
+	err = json.Unmarshal(raw, &r)
+	if err != nil {
+		return nil, fmt.Errorf("unmarshal response data: %s: %w", string(raw), err)
+	}
+
+	return r, nil
+}
+
+// AddRecord Adds a new record to the zone and returns the newly created record.
+// https://api.ns1.hosttech.eu/api/documentation/#/Records/post_api_user_v1_zones__zoneId__records
+func (c Client) AddRecord(zoneID string, record Record) (*Record, error) {
+	endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "user", "v1", "zones", zoneID, "records"))
+	if err != nil {
+		return nil, fmt.Errorf("parse URL: %w", err)
+	}
+
+	body, err := json.Marshal(record)
+	if err != nil {
+		return nil, fmt.Errorf("marshal request data: %w", err)
+	}
+
+	req, err := http.NewRequest(http.MethodPost, endpoint.String(), bytes.NewReader(body))
+	if err != nil {
+		return nil, fmt.Errorf("create request: %w", err)
+	}
+
+	raw, err := c.do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	var r Record
+	err = json.Unmarshal(raw, &r)
+	if err != nil {
+		return nil, fmt.Errorf("unmarshal response data: %s: %w", string(raw), err)
+	}
+
+	return &r, nil
+}
+
+// DeleteRecord Deletes a single record for the given id.
+// https://api.ns1.hosttech.eu/api/documentation/#/Records/delete_api_user_v1_zones__zoneId__records__recordId_
+func (c Client) DeleteRecord(zoneID, recordID string) error {
+	endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "user", "v1", "zones", zoneID, "records", recordID))
+	if err != nil {
+		return fmt.Errorf("parse URL: %w", err)
+	}
+
+	req, err := http.NewRequest(http.MethodDelete, endpoint.String(), nil)
+	if err != nil {
+		return fmt.Errorf("create request: %w", err)
+	}
+
+	_, err = c.do(req)
+
+	return err
+}
+
+func (c Client) do(req *http.Request) (json.RawMessage, error) {
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.apiKey))
+
+	resp, errD := c.HTTPClient.Do(req)
+	if errD != nil {
+		return nil, fmt.Errorf("send request: %w", errD)
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	switch resp.StatusCode {
+	case http.StatusOK, http.StatusCreated:
+		all, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			return nil, fmt.Errorf("read response: %w", err)
+		}
+
+		var r apiResponse
+		err = json.Unmarshal(all, &r)
+		if err != nil {
+			return nil, fmt.Errorf("unmarshal response: %w", err)
+		}
+
+		return r.Data, nil
+
+	case http.StatusNoContent:
+		return nil, nil
+
+	default:
+		data, _ := ioutil.ReadAll(resp.Body)
+
+		e := APIError{StatusCode: resp.StatusCode}
+		err := json.Unmarshal(data, &e)
+		if err != nil {
+			e.Message = string(data)
+		}
+
+		return nil, e
+	}
+}

providers/dns/hosttech/internal/client_test.go

@@ -0,0 +1,262 @@
+package internal
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const testAPIKey = "secret"
+
+func TestClient_GetZones(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones", testHandler(http.MethodGet, http.StatusOK, "zones.json"))
+
+	zones, err := client.GetZones("", 100, 0)
+	require.NoError(t, err)
+
+	expected := []Zone{
+		{
+			ID:          10,
+			Name:        "user1.ch",
+			Email:       "test@hosttech.ch",
+			TTL:         10800,
+			Nameserver:  "ns1.hosttech.ch",
+			Dnssec:      false,
+			DnssecEmail: "test@hosttech.ch",
+		},
+	}
+
+	assert.Equal(t, expected, zones)
+}
+
+func TestClient_GetZones_error(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones", testHandler(http.MethodGet, http.StatusUnauthorized, "error.json"))
+
+	_, err := client.GetZones("", 100, 0)
+	require.Error(t, err)
+}
+
+func TestClient_GetZone(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123", testHandler(http.MethodGet, http.StatusOK, "zone.json"))
+
+	zone, err := client.GetZone("123")
+	require.NoError(t, err)
+
+	expected := &Zone{
+		ID:          10,
+		Name:        "user1.ch",
+		Email:       "test@hosttech.ch",
+		TTL:         10800,
+		Nameserver:  "ns1.hosttech.ch",
+		Dnssec:      false,
+		DnssecEmail: "test@hosttech.ch",
+	}
+
+	assert.Equal(t, expected, zone)
+}
+
+func TestClient_GetZone_error(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123", testHandler(http.MethodGet, http.StatusUnauthorized, "error.json"))
+
+	_, err := client.GetZone("123")
+	require.Error(t, err)
+}
+
+func TestClient_GetRecords(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123/records", testHandler(http.MethodGet, http.StatusOK, "records.json"))
+
+	records, err := client.GetRecords("123", "TXT")
+	require.NoError(t, err)
+
+	expected := []Record{
+		{
+			ID:      10,
+			Type:    "A",
+			Name:    "www",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      11,
+			Type:    "AAAA",
+			Name:    "www",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      12,
+			Type:    "CAA",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      13,
+			Type:    "CNAME",
+			Name:    "www",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      14,
+			Type:    "MX",
+			Name:    "mail.example.com",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      14,
+			Type:    "NS",
+			Name:    "ns1.example.com",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      15,
+			Type:    "PTR",
+			Name:    "smtp.example.com",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      16,
+			Type:    "SRV",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      17,
+			Type:    "TXT",
+			Text:    "v=spf1 ip4:1.2.3.4/32 -all",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+		{
+			ID:      17,
+			Type:    "TLSA",
+			Text:    "0 0 1 d2abde240d7cd3ee6b4b28c54df034b97983a1d16e8a410e4561cb106618e971",
+			TTL:     3600,
+			Comment: "my first record",
+		},
+	}
+
+	assert.Equal(t, expected, records)
+}
+
+func TestClient_GetRecords_error(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123/records", testHandler(http.MethodGet, http.StatusUnauthorized, "error.json"))
+
+	_, err := client.GetRecords("123", "TXT")
+	require.Error(t, err)
+}
+
+func TestClient_AddRecord(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123/records", testHandler(http.MethodPost, http.StatusCreated, "record.json"))
+
+	record := Record{
+		Type:    "TXT",
+		Name:    "lego",
+		Text:    "content",
+		TTL:     3600,
+		Comment: "example",
+	}
+
+	newRecord, err := client.AddRecord("123", record)
+	require.NoError(t, err)
+
+	expected := &Record{
+		ID:      10,
+		Type:    "TXT",
+		Name:    "lego",
+		Text:    "content",
+		TTL:     3600,
+		Comment: "example",
+	}
+
+	assert.Equal(t, expected, newRecord)
+}
+
+func TestClient_AddRecord_error(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123/records", testHandler(http.MethodPost, http.StatusUnauthorized, "error-details.json"))
+
+	record := Record{
+		Type:    "TXT",
+		Name:    "lego",
+		Text:    "content",
+		TTL:     3600,
+		Comment: "example",
+	}
+
+	_, err := client.AddRecord("123", record)
+	require.Error(t, err)
+}
+
+func TestClient_DeleteRecord(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123/records/6", testHandler(http.MethodDelete, http.StatusUnauthorized, "error.json"))
+
+	err := client.DeleteRecord("123", "6")
+	require.Error(t, err)
+}
+
+func TestClient_DeleteRecord_error(t *testing.T) {
+	client := setupTest(t, "/user/v1/zones/123/records/6", testHandler(http.MethodDelete, http.StatusNoContent, ""))
+
+	err := client.DeleteRecord("123", "6")
+	require.NoError(t, err)
+}
+
+func setupTest(t *testing.T, path string, handler http.Handler) *Client {
+	t.Helper()
+
+	mux := http.NewServeMux()
+	server := httptest.NewServer(mux)
+	t.Cleanup(server.Close)
+
+	mux.Handle(path, handler)
+
+	client := NewClient(testAPIKey)
+	client.baseURL, _ = url.Parse(server.URL)
+
+	return client
+}
+
+func testHandler(method string, statusCode int, filename string) http.HandlerFunc {
+	return func(rw http.ResponseWriter, req *http.Request) {
+		if req.Method != method {
+			http.Error(rw, fmt.Sprintf(`{"message":"unsupported method: %s"}`, req.Method), http.StatusMethodNotAllowed)
+			return
+		}
+
+		if req.Header.Get("Authorization") != "Bearer "+testAPIKey {
+			http.Error(rw, `{"message":"Unauthenticated"}`, http.StatusUnauthorized)
+			return
+		}
+
+		rw.WriteHeader(statusCode)
+
+		if statusCode == http.StatusNoContent {
+			return
+		}
+
+		file, err := os.Open(filepath.Join("fixtures", filename))
+		if err != nil {
+			http.Error(rw, fmt.Sprintf(`{"message":"%v"}`, err), http.StatusInternalServerError)
+			return
+		}
+
+		defer func() { _ = file.Close() }()
+
+		_, err = io.Copy(rw, file)
+		if err != nil {
+			http.Error(rw, fmt.Sprintf(`{"message":"%v"}`, err), http.StatusInternalServerError)
+			return
+		}
+	}
+}

providers/dns/hosttech/internal/fixtures/error-details.json

@@ -0,0 +1,8 @@
+{
+  "message": "The given data was invalid.",
+  "errors": {
+    "type": [
+      "Darf nicht leer sein."
+    ]
+  }
+}

providers/dns/hosttech/internal/fixtures/error.json

@@ -0,0 +1,3 @@
+{
+  "message": "Unauthenticated."
+}

providers/dns/hosttech/internal/fixtures/record.json

@@ -0,0 +1,10 @@
+{
+  "data": {
+    "id": 10,
+    "type": "TXT",
+    "name": "lego",
+    "Text": "content",
+    "ttl": 3600,
+    "comment": "example"
+  }
+}

providers/dns/hosttech/internal/fixtures/records.json

@@ -0,0 +1,90 @@
+{
+  "data": [
+    {
+      "id": 10,
+      "type": "A",
+      "name": "www",
+      "ipv4": "1.2.3.4",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 11,
+      "type": "AAAA",
+      "name": "www",
+      "ipv6": "2001:db8:1234::1",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 12,
+      "type": "CAA",
+      "name": "",
+      "flag": "0",
+      "tag": "issue",
+      "value": "letsencrypt.org",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 13,
+      "type": "CNAME",
+      "name": "www",
+      "cname": "site.example.com",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 14,
+      "type": "MX",
+      "ownername": "",
+      "name": "mail.example.com",
+      "pref": 10,
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 14,
+      "type": "NS",
+      "ownername": "sub",
+      "name": "ns1.example.com",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 15,
+      "type": "PTR",
+      "origin": "4.3.2.1",
+      "name": "smtp.example.com",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 16,
+      "type": "SRV",
+      "service": "_autodiscover._tcp",
+      "priority": 0,
+      "weight": 0,
+      "port": 443,
+      "target": "exchange.example.com",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 17,
+      "type": "TXT",
+      "name": "",
+      "text": "v=spf1 ip4:1.2.3.4/32 -all",
+      "ttl": 3600,
+      "comment": "my first record"
+    },
+    {
+      "id": 17,
+      "type": "TLSA",
+      "name": "",
+      "text": "0 0 1 d2abde240d7cd3ee6b4b28c54df034b97983a1d16e8a410e4561cb106618e971",
+      "ttl": 3600,
+      "comment": "my first record"
+    }
+  ]
+}

providers/dns/hosttech/internal/fixtures/zone.json

@@ -0,0 +1,13 @@
+{
+  "data": {
+    "id": 10,
+    "name": "user1.ch",
+    "email": "test@hosttech.ch",
+    "ttl": 10800,
+    "nameserver": "ns1.hosttech.ch",
+    "dnssec": false,
+    "dnssec_email": "test@hosttech.ch",
+    "ds_records": "[]",
+    "records": "[{'id': 10, 'type': 'A', 'name': 'www', 'ipv4': '1.2.3.4', 'ttl': 3600, 'comment': 'my first record'}]"
+  }
+}

providers/dns/hosttech/internal/fixtures/zones.json

@@ -0,0 +1,13 @@
+{
+  "data": [
+    {
+      "id": 10,
+      "name": "user1.ch",
+      "email": "test@hosttech.ch",
+      "ttl": 10800,
+      "nameserver": "ns1.hosttech.ch",
+      "dnssec": false,
+      "dnssec_email": "test@hosttech.ch"
+    }
+  ]
+}

providers/dns/hosttech/internal/types.go

@@ -0,0 +1,44 @@
+package internal
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type apiResponse struct {
+	Data json.RawMessage `json:"data"`
+}
+
+type APIError struct {
+	Message    string                 `json:"message,omitempty"`
+	Errors     map[string]interface{} `json:"errors,omitempty"`
+	StatusCode int                    `json:"-"`
+}
+
+func (a APIError) Error() string {
+	msg := fmt.Sprintf("%d: %s", a.StatusCode, a.Message)
+	for k, v := range a.Errors {
+		msg += fmt.Sprintf(" %s: %v", k, v)
+	}
+	return msg
+}
+
+type Zone struct {
+	ID          int    `json:"id"`
+	Name        string `json:"name,omitempty"`
+	Email       string `json:"email,omitempty"`
+	TTL         int    `json:"ttl,omitempty"`
+	Nameserver  string `json:"nameserver,omitempty"`
+	Dnssec      bool   `json:"dnssec,omitempty"`
+	DnssecEmail string `json:"dnssec_email,omitempty"`
+}
+
+type Record struct {
+	ID      int    `json:"id,omitempty"`
+	Type    string `json:"type,omitempty"`
+	Name    string `json:"name,omitempty"`
+	Zone    string `json:"zone,omitempty"`
+	Text    string `json:"text,omitempty"`
+	TTL     int    `json:"ttl,omitempty"`
+	Comment string `json:"comment,omitempty"`
+}

providers/dns/internetbs/internetbs_test.go

@@ -67,19 +67,6 @@ func TestNewDNSProvider(t *testing.T) {
 	}
 }
 
-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 TestNewDNSProviderConfig(t *testing.T) {
 	testCases := []struct {
 		desc     string
@@ -128,6 +115,19 @@ func TestNewDNSProviderConfig(t *testing.T) {
 	}
 }
 
+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")