Add DNS provider for Loopia (#1324)

README.md

@@ -57,14 +57,14 @@ Detailed documentation is available [here](https://go-acme.github.io/lego/dns).
 | [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/)                     | [HyperOne](https://go-acme.github.io/lego/dns/hyperone/)                        |
 | [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/)                                | [Joker](https://go-acme.github.io/lego/dns/joker/)                              |
-| [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/)                     | [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/)                        | [NS1](https://go-acme.github.io/lego/dns/ns1/)                                  | [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/)                   | [Oracle Cloud](https://go-acme.github.io/lego/dns/oraclecloud/)                 |
+| [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/)                   |
-| [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/)                      | [reg.ru](https://go-acme.github.io/lego/dns/regru/)                             |
+| [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/)                      |
-| [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/)                 | [Scaleway](https://go-acme.github.io/lego/dns/scaleway/)                        |
+| [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/)                 |
-| [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/)                      | [TransIP](https://go-acme.github.io/lego/dns/transip/)                          |
+| [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/)                      |
-| [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/)                            | [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              |
+| [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/)                            |
-| [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/)                            |                                                                                 |
+| [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

@@ -60,6 +60,7 @@ func allDNSCodes() string {
 		"lightsail",
 		"linode",
 		"liquidweb",
+		"loopia",
 		"luadns",
 		"mydnsjp",
 		"mythicbeasts",
@@ -1075,6 +1076,27 @@ func displayDNSHelp(name string) error {
 		ew.writeln()
 		ew.writeln(`More information: https://go-acme.github.io/lego/dns/liquidweb`)
 
+	case "loopia":
+		// generated from: providers/dns/loopia/loopia.toml
+		ew.writeln(`Configuration for Loopia.`)
+		ew.writeln(`Code:	'loopia'`)
+		ew.writeln(`Since:	'v4.2.0'`)
+		ew.writeln()
+
+		ew.writeln(`Credentials:`)
+		ew.writeln(`	- "LOOPIA_API_PASSWORD":	API password`)
+		ew.writeln(`	- "LOOPIA_API_USER":	API username`)
+		ew.writeln()
+
+		ew.writeln(`Additional Configuration:`)
+		ew.writeln(`	- "LOOPIA_HTTP_TIMEOUT":	API request timeout`)
+		ew.writeln(`	- "LOOPIA_POLLING_INTERVAL":	Time between DNS propagation check`)
+		ew.writeln(`	- "LOOPIA_PROPAGATION_TIMEOUT":	Maximum waiting time for DNS propagation`)
+		ew.writeln(`	- "LOOPIA_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/loopia`)
+
 	case "luadns":
 		// generated from: providers/dns/luadns/luadns.toml
 		ew.writeln(`Configuration for LuaDNS.`)

docs/content/dns/zz_gen_loopia.md

@@ -0,0 +1,74 @@
+---
+title: "Loopia"
+date: 2019-03-03T16:39:46+01:00
+draft: false
+slug: loopia
+---
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/loopia/loopia.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+
+Since: v4.2.0
+
+Configuration for [Loopia](https://loopia.com).
+
+
+<!--more-->
+
+- Code: `loopia`
+
+Here is an example bash command using the Loopia provider:
+
+```bash
+LOOPIA_API_USER=xxxxxxxx \
+LOOPIA_API_PASSWORD=yyyyyyyy \
+lego --email my@email.com --dns loopia --domains my.domain.com run
+```
+
+
+
+
+## Credentials
+
+| Environment Variable Name | Description |
+|-----------------------|-------------|
+| `LOOPIA_API_PASSWORD` | API password |
+| `LOOPIA_API_USER` | API username |
+
+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 |
+|--------------------------------|-------------|
+| `LOOPIA_HTTP_TIMEOUT` | API request timeout |
+| `LOOPIA_POLLING_INTERVAL` | Time between DNS propagation check |
+| `LOOPIA_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
+| `LOOPIA_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).
+
+### API user
+
+You can [generate a new API user](https://customerzone.loopia.com/api/) from your account page.
+
+It needs to have the following permissions:
+
+* addZoneRecord
+* getZoneRecords
+* removeZoneRecord
+* removeSubdomain
+
+
+
+## More information
+
+- [API documentation](https://www.loopia.com/api)
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/loopia/loopia.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->

go.sum

@@ -1,15 +1,12 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0 h1:ROfEUZz+Gh5pa62DJWXSaonyu3StP6EA6lPEXPI6mCo=
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0 h1:0E3eE8MX426vUOs7aHfI7aN1BrIzzzf4ccKCSfSjGmc=
 cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
 cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
-cloud.google.com/go v0.53.0 h1:MZQCQQaRwOrAcuKjiHWHrgKykt4fZyuwF2dtiG3fGW8=
 cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
 cloud.google.com/go v0.54.0 h1:3ithwDMr7/3vpAMXiH+ZQnYbuIsh+OPhUPMFC9enmn0=
 cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
@@ -74,7 +71,6 @@ github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc h1:biVzkmvwrH8
 github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
 github.com/cenkalti/backoff/v4 v4.0.2 h1:JIufpQLbh4DkbQoii76ItQIUFzevQSqOLZca4eamEDs=
 github.com/cenkalti/backoff/v4 v4.0.2/go.mod h1:eEew/i+1Q6OrCDZh3WiXYv3+nJwBASZ8Bog/87DQnVg=
-github.com/census-instrumentation/opencensus-proto v0.2.0 h1:LzQXZOgg4CQfE6bFvXGM30YZL1WW/M337pXml+GrcZ4=
 github.com/census-instrumentation/opencensus-proto v0.2.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/census-instrumentation/opencensus-proto v0.2.1 h1:glEXhBS5PSLLv4IXzLA5yPRVX4bilULVyxxbrfOtDAk=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
@@ -106,7 +102,6 @@ github.com/exoscale/egoscale v0.23.0 h1:hoUDzrO8yNoobNdnrRvlRFjfg3Ng0vQTrv6bXRJu
 github.com/exoscale/egoscale v0.23.0/go.mod h1:hRo78jkjkCDKpivQdRBEpNYF5+cVpCJCPDg2/r45KaY=
 github.com/fatih/structs v1.1.0 h1:Q7juDM0QtcnhCpeyLGQKyg4TOIghuNXrkL32pHAUMxo=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
-github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-cmd/cmd v1.0.5/go.mod h1:y8q8qlK5wQibcw63djSl/ntiHUHXHGdCkPk0j4QeW4s=
@@ -139,11 +134,8 @@ github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFU
 github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
 github.com/golang/mock v1.4.1/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/golang/protobuf v1.3.4 h1:87PNWwrRvUSnqS4dlcBU/ftvOIBep4sYuBLlh6rX2wk=
 github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
@@ -151,7 +143,6 @@ github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8l
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
@@ -159,7 +150,6 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/martian v2.1.0+incompatible h1:/CP5g8u/VJHijgedC/Legn3BAbAaWPgecwXBIDzw5no=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
@@ -172,7 +162,6 @@ github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
-github.com/gophercloud/gophercloud v0.6.1-0.20191122030953-d8ac278c1c9d h1:r5dcOhiqucDq0XNmvsN+HMB7+o3TrjZlLdNYGFRtM3o=
 github.com/gophercloud/gophercloud v0.6.1-0.20191122030953-d8ac278c1c9d/go.mod h1:ozGNgr9KYOVATV5jsgHl/ceCDXGuguqOZAzoQ/2vcNM=
 github.com/gophercloud/gophercloud v0.7.0 h1:vhmQQEM2SbnGCg2/3EzQnQZ3V7+UCGy9s8exQCprNYg=
 github.com/gophercloud/gophercloud v0.7.0/go.mod h1:gmC5oQqMDOMO1t1gq5DquX/yAU808e/4mzjjDA76+Ss=
@@ -200,11 +189,9 @@ github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpO
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/iij/doapi v0.0.0-20190504054126-0bbf12d6d7df h1:MZf03xP9WdakyXhOWuAD5uPK3wHh96wCsqe3hCMKh8E=
 github.com/iij/doapi v0.0.0-20190504054126-0bbf12d6d7df/go.mod h1:QMZY7/J/KSQEhKWFeDesPjMj+wCHReeknARU3wqlyN4=
-github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af h1:pmfjZENx5imkbgOkpRUYLnmbU7UEFbjtDA2hxJ1ichM=
 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af/go.mod h1:Nht3zPeWKUH0NzdCt2Blrr5ys8VGpn0CEB0cQHVjt7k=
 github.com/jmespath/go-jmespath v0.3.0 h1:OS12ieG61fsCg5+qLJ+SsW9NicxNkg3b25OyT2yCeUc=
 github.com/jmespath/go-jmespath v0.3.0/go.mod h1:9QtRXoHjLGCJ5IBSaohpXITPlowMeeYCZ7fLUTSywik=
-github.com/json-iterator/go v1.1.5 h1:gL2yXlmiIo4+t+y32d4WGwOjKGYcGOuyrg46vadswDE=
 github.com/json-iterator/go v1.1.5/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.7 h1:KfgG9LzI+pYjr4xvmz/5H4FXjokeP+rlHLhv3iH62Fo=
@@ -249,7 +236,6 @@ github.com/mitchellh/mapstructure v1.3.3/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RR
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
@@ -319,7 +305,6 @@ github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6Mwd
 github.com/skratchdot/open-golang v0.0.0-20160302144031-75fb7ed4208c/go.mod h1:sUM3LWHvSMaG192sy56D9F7CNvL7jUJVXoqM1QKLnog=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
-github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a h1:pa8hGb/2YqsZKovtsgrwcDH1RZhVbTKCjLp47XpqCDs=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
 github.com/smartystreets/goconvey v1.6.4 h1:fv0U8FUIMPNf1L9lnHLvLhgicrIVChEkdzIKYqbNC9s=
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
@@ -327,11 +312,8 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -348,9 +330,7 @@ github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:
 github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
-go.opencensus.io v0.21.0 h1:mU6zScU4U1YAFPHEHYk+3JC4SY7JxgkqS10ZOSyksNg=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
-go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.3 h1:8sGtKOrtQqkN1bp2AtX+misvLIlOmsEsNd+9NIcPEm8=
@@ -365,7 +345,6 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190418165655-df01cb2cc480/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 h1:ObdrDkeb4kJdCP557AjRjq69pTHfNouLtWZG7j9rPN8=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191202143827-86a70503ff7e/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
@@ -398,7 +377,6 @@ golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKG
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
-golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -411,10 +389,8 @@ golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c h1:uOCk1iQW6Vc18bnC13MfzScl+wdKBmM9Y9kU7Z83/lw=
 golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
-golang.org/x/net v0.0.0-20190613194153-d28f0bde5980 h1:dfGZHvZk057jK2MCeWus/TowKpJ8y4AmooUzdBSR9GU=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -426,13 +402,11 @@ golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200222125558-5a598a2470a0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200301022130-244492dfa37a h1:GuSPYbZzB5/dcLNCwLQLsg3obCJtX9IJhpXkvY7kzk0=
 golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200822124328-c89045814202 h1:VvcQYSHwXgi7W+TpUR6A9g6Up98WAHf3f/ulnJ62IyA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
-golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d h1:TzXSXBo42m9gQenoE3b9BGiEpg5IG2JkU5FkPIawgtw=
@@ -441,7 +415,6 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e h1:vcxGaoTs7kV8m5Np9uUNQin4BrLOthgV7252N8V+FwY=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -458,14 +431,11 @@ golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b h1:ag/x1USPSsqHud38I9BAC88qdNLDHHtQ4mlgQIZPPNA=
 golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3 h1:4y9KwBHBgBNwDbtu44R5o1fdOCQUEXhbk/P4A9WmJq0=
 golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe h1:6fAMxZRR6sl1Uq8U61gxU+kPTs2tR8uOySCbBP7BN/M=
 golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -476,7 +446,6 @@ golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200212091648-12a6c2dcc1e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 h1:uYVVQ9WP/Ds2ROhcaGPeIdVq0RIXVLwsHlnvJ+cT1So=
 golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd h1:xhmwyvizuTgC2qz7ZlMluP20uW+C3Rm0FD/WLDX8884=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -486,9 +455,7 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZenJ2O330aBsf7JfSUXmQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20191024005414-555d28b269f0 h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e h1:EHBhcS0mlXEAVwNyO2dLfjToGsyY4j24pTs2ScHnX7s=
 golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -525,7 +492,6 @@ golang.org/x/tools v0.0.0-20200204074204-1cc6d1ef6c74/go.mod h1:TB2adYChydJhpapK
 golang.org/x/tools v0.0.0-20200207183749-b753a1ba74fa/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200212150539-ea181f53ac56/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200224181240-023911ca70b2/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20200304193943-95d2e580d8eb h1:iKlO7ROJc6SttHKlxzwGytRtBUqX4VARrNTgP2YLX5M=
 golang.org/x/tools v0.0.0-20200304193943-95d2e580d8eb/go.mod h1:o4KQGtdN14AW+yjsvvwRTJJuXz8XRtIHtEnmAXLyFUw=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -534,23 +500,18 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8T
 google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
-google.golang.org/api v0.8.0 h1:VGGbLNyPF7dvYHhcUGYBBGCRDDK0RRJAI6KCvo0CL+E=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
-google.golang.org/api v0.14.0 h1:uMf5uLi4eQMRrMKhCplNik4U4H8Z6C1br3zOtAa/aDE=
 google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
 google.golang.org/api v0.15.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
-google.golang.org/api v0.17.0 h1:0q95w+VuFtv4PAx4PZVQdBMmYbaCHbnfKaEiDIcVyag=
 google.golang.org/api v0.17.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
 google.golang.org/api v0.18.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
 google.golang.org/api v0.20.0 h1:jz2KixHX7EcCPiQrySzPdnYT7DbINAypCqKZ1Z7GM40=
 google.golang.org/api v0.20.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.5.0 h1:KxkO13IPW4Lslp2bz+KHP2E3gtFlrIGNThxkZQ3g+4c=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.6.1 h1:QzqyMA1tlu6CgqCDUtU9V+ZKhLFT2dkJuANu5QaxI3I=
 google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
 google.golang.org/appengine v1.6.5 h1:tycE03LOZYQNhDpS27tcQdAzLCVMaj7QT2SXxebnpCM=
 google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
@@ -558,20 +519,17 @@ google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoA
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873 h1:nfPFGzJkUDX6uBmpN/pSw7MbOAWegH5QDQuoXFHedLg=
 google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20191115194625-c23dd37a84c9/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
-google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1 h1:aQktFqmDE2yjveXJlVIfslDFmFnUXSqG0i6KRcJAeMc=
 google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200122232147-0452cf42e150/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200204135345-fa8e72b47b90/go.mod h1:GmwEX6Z4W5gMy59cAlVYjN9JhxgbQH6Gn+gFDQe2lzA=
-google.golang.org/genproto v0.0.0-20200212174721-66ed5ce911ce h1:1mbrb1tUU+Zmt5C94IGKADBTJZjZXAd+BubWi7r9EiI=
 google.golang.org/genproto v0.0.0-20200212174721-66ed5ce911ce/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200224152610-e50cd9704f63/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200305110556-506484158171 h1:xes2Q2k+d/+YNXVw0FpZkIDJiaux4OVrRKXRAzH6A0U=
@@ -579,9 +537,7 @@ google.golang.org/genproto v0.0.0-20200305110556-506484158171/go.mod h1:55QSHmfG
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.19.1/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.20.1 h1:Hz2g2wirWK7H0qIIhGIqRGTuMwTE8HEKFnDZZ7lm9NU=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
-google.golang.org/grpc v1.21.1 h1:j6XxA85m/6txkUCHvzlV5f+HBNl/1r5cZ2A/3IEFOO8=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
@@ -590,7 +546,6 @@ google.golang.org/grpc v1.27.1 h1:zvIju4sqAGvwKspUQOhwnpcqSbzi7/H6QomNNjTL4sk=
 google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -599,24 +554,20 @@ gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMy
 gopkg.in/h2non/gock.v1 v1.0.15 h1:SzLqcIlb/fDfg7UvukMpNcWsu7sI5tWwL+KCATZqks0=
 gopkg.in/h2non/gock.v1 v1.0.15/go.mod h1:sX4zAkdYX1TRGJ2JY156cFspQn4yRWn6p9EMdODlynE=
 gopkg.in/ini.v1 v1.42.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/ini.v1 v1.51.1 h1:GyboHr4UqMiLUybYjd22ZjQIKEJEpgtLXtuGbR21Oho=
 gopkg.in/ini.v1 v1.51.1/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.57.0 h1:9unxIsFcTt4I55uWluz+UmL95q4kdJ0buvQ1ZIqVQww=
 gopkg.in/ini.v1 v1.57.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ns1/ns1-go.v2 v2.4.2 h1:H6VnvLez0GjxXsXat6MUFmKuiMFuDaMBdGF9qtkmODo=
 gopkg.in/ns1/ns1-go.v2 v2.4.2/go.mod h1:GMnKY+ZuoJ+lVLL+78uSTjwTz2jMazq6AfGKQOYhsPk=
-gopkg.in/resty.v1 v1.12.0 h1:CuXP0Pjfw9rOuY6EP+UvtNvt5DSqHpIxILZKT/quCZI=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/square/go-jose.v2 v2.5.1 h1:7odma5RETjNHWJnR32wx8t+Io4djHE1PqxCFx3iiZ2w=
 gopkg.in/square/go-jose.v2 v2.5.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

providers/dns/dns_providers.go

@@ -51,6 +51,7 @@ import (
 	"github.com/go-acme/lego/v4/providers/dns/lightsail"
 	"github.com/go-acme/lego/v4/providers/dns/linode"
 	"github.com/go-acme/lego/v4/providers/dns/liquidweb"
+	"github.com/go-acme/lego/v4/providers/dns/loopia"
 	"github.com/go-acme/lego/v4/providers/dns/luadns"
 	"github.com/go-acme/lego/v4/providers/dns/mydnsjp"
 	"github.com/go-acme/lego/v4/providers/dns/mythicbeasts"
@@ -182,6 +183,8 @@ func NewDNSChallengeProviderByName(name string) (challenge.Provider, error) {
 		return liquidweb.NewDNSProvider()
 	case "luadns":
 		return luadns.NewDNSProvider()
+	case "loopia":
+		return loopia.NewDNSProvider()
 	case "manual":
 		return dns01.NewDNSProviderManual()
 	case "mydnsjp":

providers/dns/loopia/internal/client.go

@@ -0,0 +1,187 @@
+package internal
+
+import (
+	"bytes"
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"strings"
+	"time"
+)
+
+// DefaultBaseURL is url to the XML-RPC api.
+const DefaultBaseURL = "https://api.loopia.se/RPCSERV"
+
+// Client the Loopia client.
+type Client struct {
+	APIUser     string
+	APIPassword string
+	BaseURL     string
+	HTTPClient  *http.Client
+}
+
+// NewClient creates a new Loopia Client.
+func NewClient(apiUser, apiPassword string) *Client {
+	return &Client{
+		APIUser:     apiUser,
+		APIPassword: apiPassword,
+		BaseURL:     DefaultBaseURL,
+		HTTPClient:  &http.Client{Timeout: 10 * time.Second},
+	}
+}
+
+// AddTXTRecord adds a TXT record.
+func (c *Client) AddTXTRecord(domain string, subdomain string, ttl int, value string) error {
+	call := &methodCall{
+		MethodName: "addZoneRecord",
+		Params: []param{
+			paramString{Value: c.APIUser},
+			paramString{Value: c.APIPassword},
+			paramString{Value: domain},
+			paramString{Value: subdomain},
+			paramStruct{
+				StructMembers: []structMember{
+					structMemberString{Name: "type", Value: "TXT"},
+					structMemberInt{Name: "ttl", Value: ttl},
+					structMemberInt{Name: "priority", Value: 0},
+					structMemberString{Name: "rdata", Value: value},
+					structMemberInt{Name: "record_id", Value: 0},
+				},
+			},
+		},
+	}
+	resp := &responseString{}
+
+	err := c.rpcCall(call, resp)
+	if err != nil {
+		return err
+	}
+
+	return checkResponse(resp.Value)
+}
+
+// RemoveTXTRecord removes a TXT record.
+func (c *Client) RemoveTXTRecord(domain string, subdomain string, recordID int) error {
+	call := &methodCall{
+		MethodName: "removeZoneRecord",
+		Params: []param{
+			paramString{Value: c.APIUser},
+			paramString{Value: c.APIPassword},
+			paramString{Value: domain},
+			paramString{Value: subdomain},
+			paramInt{Value: recordID},
+		},
+	}
+	resp := &responseString{}
+
+	err := c.rpcCall(call, resp)
+	if err != nil {
+		return err
+	}
+
+	return checkResponse(resp.Value)
+}
+
+// GetTXTRecords gets TXT records.
+func (c *Client) GetTXTRecords(domain string, subdomain string) ([]RecordObj, error) {
+	call := &methodCall{
+		MethodName: "getZoneRecords",
+		Params: []param{
+			paramString{Value: c.APIUser},
+			paramString{Value: c.APIPassword},
+			paramString{Value: domain},
+			paramString{Value: subdomain},
+		},
+	}
+	resp := &recordObjectsResponse{}
+
+	err := c.rpcCall(call, resp)
+
+	return resp.Params, err
+}
+
+// RemoveSubdomain remove a sub-domain.
+func (c *Client) RemoveSubdomain(domain, subdomain string) error {
+	call := &methodCall{
+		MethodName: "removeSubdomain",
+		Params: []param{
+			paramString{Value: c.APIUser},
+			paramString{Value: c.APIPassword},
+			paramString{Value: domain},
+			paramString{Value: subdomain},
+		},
+	}
+	resp := &responseString{}
+
+	err := c.rpcCall(call, resp)
+	if err != nil {
+		return err
+	}
+
+	return checkResponse(resp.Value)
+}
+
+// rpcCall makes an XML-RPC call to Loopia's RPC endpoint
+// by marshaling the data given in the call argument to XML and sending that via HTTP Post to Loopia.
+// The response is then unmarshalled into the resp argument.
+func (c *Client) rpcCall(call *methodCall, resp response) error {
+	body, err := xml.MarshalIndent(call, "", "  ")
+	if err != nil {
+		return fmt.Errorf("error during unmarshalling the request body: %w", err)
+	}
+
+	body = append([]byte(`<?xml version="1.0"?>`+"\n"), body...)
+
+	respBody, err := c.httpPost(c.BaseURL, "text/xml", bytes.NewReader(body))
+	if err != nil {
+		return err
+	}
+
+	err = xml.Unmarshal(respBody, resp)
+	if err != nil {
+		return fmt.Errorf("error during unmarshalling the response body: %w", err)
+	}
+
+	if resp.faultCode() != 0 {
+		return rpcError{
+			faultCode:   resp.faultCode(),
+			faultString: strings.TrimSpace(resp.faultString()),
+		}
+	}
+
+	return nil
+}
+
+func (c *Client) httpPost(url string, bodyType string, body io.Reader) ([]byte, error) {
+	resp, err := c.HTTPClient.Post(url, bodyType, body)
+	if err != nil {
+		return nil, fmt.Errorf("HTTP Post Error: %w", err)
+	}
+
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("HTTP Post Error: %d", resp.StatusCode)
+	}
+
+	b, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("HTTP Post Error: %w", err)
+	}
+
+	return b, nil
+}
+
+func checkResponse(value string) error {
+	switch v := strings.TrimSpace(value); v {
+	case "OK":
+		return nil
+	case "AUTH_ERROR":
+		return errors.New("authentication error")
+	default:
+		return fmt.Errorf("unknown error: %q", v)
+	}
+}

providers/dns/loopia/internal/client_test.go

@@ -0,0 +1,339 @@
+package internal
+
+import (
+	"encoding/xml"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestClient_AddZoneRecord(t *testing.T) {
+	serverResponses := map[string]string{
+		addZoneRecordGoodAuth:       responseOk,
+		addZoneRecordBadAuth:        responseAuthError,
+		addZoneRecordNonValidDomain: responseUnknownError,
+		addZoneRecordEmptyResponse:  "",
+	}
+
+	server := createFakeServer(t, serverResponses)
+
+	testCases := []struct {
+		desc     string
+		password string
+		domain   string
+		err      string
+	}{
+		{
+			desc:     "auth ok",
+			password: "goodpassword",
+			domain:   exampleDomain,
+		},
+		{
+			desc:     "auth error",
+			password: "badpassword",
+			domain:   exampleDomain,
+			err:      "authentication error",
+		},
+		{
+			desc:     "unknown error",
+			password: "goodpassword",
+			domain:   "badexample.com",
+			err:      `unknown error: "UNKNOWN_ERROR"`,
+		},
+		{
+			desc:     "empty response",
+			password: "goodpassword",
+			domain:   "empty.com",
+			err:      "error during unmarshalling the response body: EOF",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			client := NewClient("apiuser", test.password)
+			client.BaseURL = server.URL + "/"
+			client.HTTPClient = server.Client()
+
+			err := client.AddTXTRecord(test.domain, exampleSubDomain, 123, "TXTrecord")
+			if len(test.err) == 0 {
+				require.NoError(t, err)
+			} else {
+				require.Error(t, err)
+				assert.EqualError(t, err, test.err)
+			}
+		})
+	}
+}
+
+func TestClient_RemoveSubdomain(t *testing.T) {
+	serverResponses := map[string]string{
+		removeSubdomainGoodAuth:       responseOk,
+		removeSubdomainBadAuth:        responseAuthError,
+		removeSubdomainNonValidDomain: responseUnknownError,
+		removeSubdomainEmptyResponse:  "",
+	}
+
+	server := createFakeServer(t, serverResponses)
+
+	testCases := []struct {
+		desc     string
+		password string
+		domain   string
+		err      string
+	}{
+		{
+			desc:     "auth ok",
+			password: "goodpassword",
+			domain:   exampleDomain,
+		},
+		{
+			desc:     "auth error",
+			password: "badpassword",
+			domain:   exampleDomain,
+			err:      "authentication error",
+		},
+		{
+			desc:     "unknown error",
+			password: "goodpassword",
+			domain:   "badexample.com",
+			err:      `unknown error: "UNKNOWN_ERROR"`,
+		},
+		{
+			desc:     "empty response",
+			password: "goodpassword",
+			domain:   "empty.com",
+			err:      "error during unmarshalling the response body: EOF",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			client := NewClient("apiuser", test.password)
+			client.BaseURL = server.URL + "/"
+			client.HTTPClient = server.Client()
+
+			err := client.RemoveSubdomain(test.domain, exampleSubDomain)
+			if len(test.err) == 0 {
+				require.NoError(t, err)
+			} else {
+				require.Error(t, err)
+				assert.EqualError(t, err, test.err)
+			}
+		})
+	}
+}
+
+func TestClient_RemoveZoneRecord(t *testing.T) {
+	serverResponses := map[string]string{
+		removeRecordGoodAuth:       responseOk,
+		removeRecordBadAuth:        responseAuthError,
+		removeRecordNonValidDomain: responseUnknownError,
+		removeRecordEmptyResponse:  "",
+	}
+
+	server := createFakeServer(t, serverResponses)
+
+	testCases := []struct {
+		desc     string
+		password string
+		domain   string
+		err      string
+	}{
+		{
+			desc:     "auth ok",
+			password: "goodpassword",
+			domain:   exampleDomain,
+		},
+		{
+			desc:     "auth error",
+			password: "badpassword",
+			domain:   exampleDomain,
+			err:      "authentication error",
+		},
+		{
+			desc:     "uknown error",
+			password: "goodpassword",
+			domain:   "badexample.com",
+			err:      `unknown error: "UNKNOWN_ERROR"`,
+		},
+		{
+			desc:     "empty response",
+			password: "goodpassword",
+			domain:   "empty.com",
+			err:      "error during unmarshalling the response body: EOF",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			client := NewClient("apiuser", test.password)
+			client.BaseURL = server.URL + "/"
+			client.HTTPClient = server.Client()
+
+			err := client.RemoveTXTRecord(test.domain, exampleSubDomain, 12345678)
+			if len(test.err) == 0 {
+				require.NoError(t, err)
+			} else {
+				require.Error(t, err)
+				assert.EqualError(t, err, test.err)
+			}
+		})
+	}
+}
+
+func TestClient_GetZoneRecord(t *testing.T) {
+	serverResponses := map[string]string{
+		getZoneRecords: getZoneRecordsResponse,
+	}
+
+	server := createFakeServer(t, serverResponses)
+
+	client := NewClient("apiuser", "goodpassword")
+	client.BaseURL = server.URL + "/"
+	client.HTTPClient = server.Client()
+
+	recordObjs, err := client.GetTXTRecords(exampleDomain, exampleSubDomain)
+	require.NoError(t, err)
+
+	expected := []RecordObj{
+		{
+			Type:     "TXT",
+			TTL:      300,
+			Priority: 0,
+			Rdata:    exampleRdata,
+			RecordID: 12345678,
+		},
+	}
+	assert.EqualValues(t, expected, recordObjs)
+}
+
+func TestClient_rpcCall_404(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_, err := ioutil.ReadAll(r.Body)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		w.WriteHeader(http.StatusNotFound)
+
+		_, err = fmt.Fprint(w, "<?xml version='1.0' encoding='UTF-8'?>")
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}))
+
+	t.Cleanup(server.Close)
+
+	call := &methodCall{
+		MethodName: "dummyMethod",
+		Params: []param{
+			paramString{Value: "test1"},
+		},
+	}
+
+	client := NewClient("apiuser", "apipassword")
+	client.BaseURL = server.URL + "/"
+	client.HTTPClient = server.Client()
+
+	err := client.rpcCall(call, &responseString{})
+	assert.EqualError(t, err, "HTTP Post Error: 404")
+}
+
+func TestClient_rpcCall_RPCError(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_, err := ioutil.ReadAll(r.Body)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		_, err = fmt.Fprint(w, responseRPCError)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}))
+
+	t.Cleanup(server.Close)
+
+	call := &methodCall{
+		MethodName: "getDomains",
+		Params: []param{
+			paramString{Value: "test1"},
+		},
+	}
+
+	client := NewClient("apiuser", "apipassword")
+	client.BaseURL = server.URL + "/"
+	client.HTTPClient = server.Client()
+
+	err := client.rpcCall(call, &responseString{})
+	assert.EqualError(t, err, "RPC Error: (201) Method signature error: 42")
+}
+
+func TestUnmarshallFaultyRecordObject(t *testing.T) {
+	testCases := []struct {
+		desc string
+		xml  string
+	}{
+		{
+			desc: "faulty name",
+			xml:  "<name>name<name>",
+		},
+		{
+			desc: "faulty string",
+			xml:  "<value><string>foo<string></value>",
+		},
+		{
+			desc: "faulty int",
+			xml:  "<value><int>1<int></value>",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			resp := &RecordObj{}
+
+			err := xml.Unmarshal([]byte(test.xml), resp)
+			require.Error(t, err)
+		})
+	}
+}
+
+func createFakeServer(t *testing.T, serverResponses map[string]string) *httptest.Server {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Header.Get("Content-Type") != "text/xml" {
+			http.Error(w, fmt.Sprintf("invalid content type: %s", r.Header.Get("Content-Type")), http.StatusBadRequest)
+			return
+		}
+
+		req, err := ioutil.ReadAll(r.Body)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		resp, ok := serverResponses[string(req)]
+		if !ok {
+			http.Error(w, "no response for request", http.StatusBadRequest)
+			return
+		}
+
+		_, err = fmt.Fprint(w, resp)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}))
+
+	t.Cleanup(server.Close)
+
+	return server
+}

providers/dns/loopia/internal/mock_test.go

@@ -0,0 +1,660 @@
+package internal
+
+const (
+	exampleDomain    = "example.com"
+	exampleSubDomain = "_acme-challenge"
+	exampleRdata     = "LHDhK3oGRvkiefQnx7OOczTY5Tic_xZ6HcMOc_gmtoM"
+)
+
+// Testdata based on real traffic between an xml-rpc client and the api.
+const responseOk = `<?xml version="1.0" encoding="UTF-8"?>
+		<methodResponse>
+		  <params>
+			<param>
+			  <value>
+				<string>
+				  OK
+				</string>
+			  </value>
+			</param>
+		  </params>
+		</methodResponse>`
+
+const responseAuthError = `<?xml version="1.0" encoding="UTF-8"?>
+		<methodResponse>
+		  <params>
+			<param>
+			  <value>
+				<string>
+				  AUTH_ERROR
+				</string>
+			  </value>
+			</param>
+		  </params>
+		</methodResponse>`
+
+const responseUnknownError = `<?xml version="1.0" encoding="UTF-8"?>
+		<methodResponse>
+		  <params>
+			<param>
+			  <value>
+				<string>
+				  UNKNOWN_ERROR
+				</string>
+			  </value>
+			</param>
+		  </params>
+		</methodResponse>`
+
+const responseRPCError = `<?xml version="1.0" encoding="UTF-8"?>
+<methodResponse>
+  <fault>
+    <value>
+      <struct>
+        <member>
+          <name>
+            faultCode
+          </name>
+          <value>
+            <int>
+              201
+            </int>
+          </value>
+        </member>
+        <member>
+          <name>
+            faultString
+          </name>
+          <value>
+            <string>
+              Method signature error: 42
+            </string>
+          </value>
+        </member>
+      </struct>
+    </value>
+  </fault>
+</methodResponse>`
+
+const addZoneRecordGoodAuth = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>addZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>example.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <struct>
+          <member>
+            <name>type</name>
+            <value>
+              <string>TXT</string>
+            </value>
+          </member>
+          <member>
+            <name>ttl</name>
+            <value>
+              <int>123</int>
+            </value>
+          </member>
+          <member>
+            <name>priority</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+          <member>
+            <name>rdata</name>
+            <value>
+              <string>TXTrecord</string>
+            </value>
+          </member>
+          <member>
+            <name>record_id</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+        </struct>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const addZoneRecordBadAuth = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>addZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>badpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>example.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <struct>
+          <member>
+            <name>type</name>
+            <value>
+              <string>TXT</string>
+            </value>
+          </member>
+          <member>
+            <name>ttl</name>
+            <value>
+              <int>123</int>
+            </value>
+          </member>
+          <member>
+            <name>priority</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+          <member>
+            <name>rdata</name>
+            <value>
+              <string>TXTrecord</string>
+            </value>
+          </member>
+          <member>
+            <name>record_id</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+        </struct>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const addZoneRecordNonValidDomain = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>addZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>badexample.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <struct>
+          <member>
+            <name>type</name>
+            <value>
+              <string>TXT</string>
+            </value>
+          </member>
+          <member>
+            <name>ttl</name>
+            <value>
+              <int>123</int>
+            </value>
+          </member>
+          <member>
+            <name>priority</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+          <member>
+            <name>rdata</name>
+            <value>
+              <string>TXTrecord</string>
+            </value>
+          </member>
+          <member>
+            <name>record_id</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+        </struct>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const addZoneRecordEmptyResponse = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>addZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>empty.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <struct>
+          <member>
+            <name>type</name>
+            <value>
+              <string>TXT</string>
+            </value>
+          </member>
+          <member>
+            <name>ttl</name>
+            <value>
+              <int>123</int>
+            </value>
+          </member>
+          <member>
+            <name>priority</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+          <member>
+            <name>rdata</name>
+            <value>
+              <string>TXTrecord</string>
+            </value>
+          </member>
+          <member>
+            <name>record_id</name>
+            <value>
+              <int>0</int>
+            </value>
+          </member>
+        </struct>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const getZoneRecords = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>getZoneRecords</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>example.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const getZoneRecordsResponse = `<?xml version="1.0" encoding="UTF-8"?>
+<methodResponse>
+  <params>
+    <param>
+      <value>
+        <array>
+          <data>
+            <value>
+              <struct>
+                <member>
+                  <name>
+                    rdata
+                  </name>
+                  <value>
+                    <string>
+                    LHDhK3oGRvkiefQnx7OOczTY5Tic_xZ6HcMOc_gmtoM
+                    </string>
+                  </value>
+                </member>
+                <member>
+                  <name>
+                    record_id
+                  </name>
+                  <value>
+                    <int>
+                      12345678
+                    </int>
+                  </value>
+                </member>
+                <member>
+                  <name>
+                    priority
+                  </name>
+                  <value>
+                    <int>
+                      0
+                    </int>
+                  </value>
+                </member>
+                <member>
+                  <name>
+                    ttl
+                  </name>
+                  <value>
+                    <int>
+                      300
+                    </int>
+                  </value>
+                </member>
+                <member>
+                  <name>
+                    type
+                  </name>
+                  <value>
+                    <string>
+                      TXT
+                    </string>
+                  </value>
+                </member>
+              </struct>
+            </value>
+          </data>
+        </array>
+      </value>
+    </param>
+  </params>
+</methodResponse>`
+
+const removeRecordGoodAuth = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>example.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <int>12345678</int>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const removeRecordBadAuth = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>badpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>example.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <int>12345678</int>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const removeRecordNonValidDomain = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>badexample.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <int>12345678</int>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const removeRecordEmptyResponse = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeZoneRecord</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>empty.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <int>12345678</int>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const removeSubdomainGoodAuth = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeSubdomain</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>example.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const removeSubdomainBadAuth = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeSubdomain</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>badpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>example.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const removeSubdomainNonValidDomain = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeSubdomain</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>badexample.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+  </params>
+</methodCall>`
+
+const removeSubdomainEmptyResponse = `<?xml version="1.0"?>
+<methodCall>
+  <methodName>removeSubdomain</methodName>
+  <params>
+    <param>
+      <value>
+        <string>apiuser</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>goodpassword</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>empty.com</string>
+      </value>
+    </param>
+    <param>
+      <value>
+        <string>_acme-challenge</string>
+      </value>
+    </param>
+  </params>
+</methodCall>`

providers/dns/loopia/internal/types.go

@@ -0,0 +1,173 @@
+package internal
+
+import (
+	"encoding/xml"
+	"fmt"
+	"strings"
+)
+
+// types for XML-RPC method calls and parameters
+
+type param interface {
+	param()
+}
+
+type paramString struct {
+	XMLName xml.Name `xml:"param"`
+	Value   string   `xml:"value>string"`
+}
+
+func (p paramString) param() {}
+
+type paramInt struct {
+	XMLName xml.Name `xml:"param"`
+	Value   int      `xml:"value>int"`
+}
+
+func (p paramInt) param() {}
+
+type paramStruct struct {
+	XMLName       xml.Name       `xml:"param"`
+	StructMembers []structMember `xml:"value>struct>member"`
+}
+
+func (p paramStruct) param() {}
+
+type structMember interface {
+	structMember()
+}
+
+type structMemberString struct {
+	Name  string `xml:"name"`
+	Value string `xml:"value>string"`
+}
+
+func (m structMemberString) structMember() {}
+
+type structMemberInt struct {
+	Name  string `xml:"name"`
+	Value int    `xml:"value>int"`
+}
+
+func (m structMemberInt) structMember() {}
+
+type methodCall struct {
+	XMLName    xml.Name `xml:"methodCall"`
+	MethodName string   `xml:"methodName"`
+	Params     []param  `xml:"params>param"`
+}
+
+// types for XML-RPC responses
+
+type response interface {
+	faultCode() int
+	faultString() string
+}
+
+type responseString struct {
+	responseFault
+	Value string `xml:"params>param>value>string"`
+}
+
+type responseFault struct {
+	FaultCode   int    `xml:"fault>value>struct>member>value>int"`
+	FaultString string `xml:"fault>value>struct>member>value>string"`
+}
+
+func (r responseFault) faultCode() int      { return r.FaultCode }
+func (r responseFault) faultString() string { return r.FaultString }
+
+type rpcError struct {
+	faultCode   int
+	faultString string
+}
+
+func (e rpcError) Error() string {
+	return fmt.Sprintf("RPC Error: (%d) %s", e.faultCode, e.faultString)
+}
+
+type recordObjectsResponse struct {
+	responseFault
+	XMLName xml.Name    `xml:"methodResponse"`
+	Params  []RecordObj `xml:"params>param>value>array>data>value>struct"`
+}
+
+type RecordObj struct {
+	Type     string
+	TTL      int
+	Priority int
+	Rdata    string
+	RecordID int
+}
+
+func (r *RecordObj) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
+	var name string
+	for {
+		t, err := d.Token()
+		if err != nil {
+			return err
+		}
+
+		switch tt := t.(type) {
+		case xml.StartElement:
+			switch tt.Name.Local {
+			case "name": // The name of the record object: <name>
+				var s string
+				if err = d.DecodeElement(&s, &start); err != nil {
+					return err
+				}
+
+				name = strings.TrimSpace(s)
+
+			case "string": // A string value of the record object: <value><string>
+				if err = r.decodeValueString(name, d, start); err != nil {
+					return err
+				}
+
+			case "int": // An int value of the record object: <value><int>
+				if err = r.decodeValueInt(name, d, start); err != nil {
+					return err
+				}
+			}
+		case xml.EndElement:
+			if tt == start.End() {
+				return nil
+			}
+		}
+	}
+}
+
+func (r *RecordObj) decodeValueString(name string, d *xml.Decoder, start xml.StartElement) error {
+	var s string
+	if err := d.DecodeElement(&s, &start); err != nil {
+		return err
+	}
+
+	s = strings.TrimSpace(s)
+	switch name {
+	case "type":
+		r.Type = s
+	case "rdata":
+		r.Rdata = s
+	}
+
+	return nil
+}
+
+func (r *RecordObj) decodeValueInt(name string, d *xml.Decoder, start xml.StartElement) error {
+	var i int
+	if err := d.DecodeElement(&i, &start); err != nil {
+		return err
+	}
+
+	switch name {
+	case "record_id":
+		r.RecordID = i
+	case "ttl":
+		r.TTL = i
+	case "priority":
+		r.Priority = i
+	}
+
+	return nil
+}

providers/dns/loopia/loopia.go

@@ -0,0 +1,192 @@
+// Package loopia implements a DNS provider for solving the DNS-01 challenge using loopia DNS.
+package loopia
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"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/loopia/internal"
+)
+
+const minTTL = 300
+
+// Environment variables names.
+const (
+	envNamespace = "LOOPIA_"
+
+	EnvAPIUser     = envNamespace + "API_USER"
+	EnvAPIPassword = envNamespace + "API_PASSWORD"
+
+	EnvTTL                = envNamespace + "TTL"
+	EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
+	EnvPollingInterval    = envNamespace + "POLLING_INTERVAL"
+	EnvHTTPTimeout        = envNamespace + "HTTP_TIMEOUT"
+)
+
+type dnsClient interface {
+	AddTXTRecord(domain string, subdomain string, ttl int, value string) error
+	RemoveTXTRecord(domain string, subdomain string, recordID int) error
+	GetTXTRecords(domain string, subdomain string) ([]internal.RecordObj, error)
+	RemoveSubdomain(domain, subdomain string) error
+}
+
+// Config is used to configure the creation of the DNSProvider.
+type Config struct {
+	BaseURL            string
+	APIUser            string
+	APIPassword        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{
+		BaseURL:            internal.DefaultBaseURL,
+		TTL:                env.GetOrDefaultInt(EnvTTL, minTTL),
+		PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, 40*time.Minute),
+		PollingInterval:    env.GetOrDefaultSecond(EnvPollingInterval, 60*time.Second),
+		HTTPClient: &http.Client{
+			Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 60*time.Second),
+		},
+	}
+}
+
+// DNSProvider implements the challenge.Provider interface.
+type DNSProvider struct {
+	config *Config
+	client dnsClient
+
+	inProgressInfo map[string]int
+	inProgressMu   sync.Mutex
+
+	findZoneByFqdn func(fqdn string) (string, error)
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for Loopia.
+// Credentials must be passed in the environment variables:
+// LOOPIA_API_USER, LOOPIA_API_PASSWORD.
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get(EnvAPIUser, EnvAPIPassword)
+	if err != nil {
+		return nil, fmt.Errorf("loopia: %w", err)
+	}
+
+	config := NewDefaultConfig()
+	config.APIUser = values[EnvAPIUser]
+	config.APIPassword = values[EnvAPIPassword]
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for Loopia.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("loopia: the configuration of the DNS provider is nil")
+	}
+
+	if config.APIUser == "" || config.APIPassword == "" {
+		return nil, errors.New("loopia: credentials missing")
+	}
+
+	// Min value for TTL is 300
+	if config.TTL < 300 {
+		config.TTL = 300
+	}
+
+	client := internal.NewClient(config.APIUser, config.APIPassword)
+
+	if config.HTTPClient != nil {
+		client.HTTPClient = config.HTTPClient
+	}
+
+	return &DNSProvider{
+		config:         config,
+		client:         client,
+		findZoneByFqdn: dns01.FindZoneByFqdn,
+		inProgressInfo: make(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)
+
+	subdomain, authZone := d.splitDomain(fqdn)
+
+	err := d.client.AddTXTRecord(authZone, subdomain, d.config.TTL, value)
+	if err != nil {
+		return fmt.Errorf("loopia: failed to add TXT record: %w", err)
+	}
+
+	txtRecords, err := d.client.GetTXTRecords(authZone, subdomain)
+	if err != nil {
+		return fmt.Errorf("loopia: failed to get TXT records: %w", err)
+	}
+
+	d.inProgressMu.Lock()
+	defer d.inProgressMu.Unlock()
+
+	for _, r := range txtRecords {
+		if r.Rdata == value {
+			d.inProgressInfo[token] = r.RecordID
+			return nil
+		}
+	}
+
+	return errors.New("loopia: failed to find the stored TXT record")
+}
+
+// CleanUp removes the TXT record matching the specified parameters.
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	fqdn, _ := dns01.GetRecord(domain, keyAuth)
+
+	subdomain, authZone := d.splitDomain(fqdn)
+
+	d.inProgressMu.Lock()
+	defer d.inProgressMu.Unlock()
+
+	err := d.client.RemoveTXTRecord(authZone, subdomain, d.inProgressInfo[token])
+	if err != nil {
+		return fmt.Errorf("loopia: failed to remove TXT record: %w", err)
+	}
+
+	records, err := d.client.GetTXTRecords(authZone, subdomain)
+	if err != nil {
+		return fmt.Errorf("loopia: failed to get TXT records: %w", err)
+	}
+
+	if len(records) > 0 {
+		return nil
+	}
+
+	err = d.client.RemoveSubdomain(authZone, subdomain)
+	if err != nil {
+		return fmt.Errorf("loopia: failed to remove sub-domain: %w", err)
+	}
+
+	return nil
+}
+
+func (d *DNSProvider) splitDomain(fqdn string) (string, string) {
+	authZone, _ := d.findZoneByFqdn(fqdn)
+	authZone = dns01.UnFqdn(authZone)
+
+	subdomain := strings.TrimSuffix(dns01.UnFqdn(fqdn), "."+authZone)
+
+	return subdomain, authZone
+}

providers/dns/loopia/loopia.toml

@@ -0,0 +1,37 @@
+Name = "Loopia"
+Description = ''''''
+URL = "https://loopia.com"
+Code = "loopia"
+Since = "v4.2.0"
+
+Example = '''
+LOOPIA_API_USER=xxxxxxxx \
+LOOPIA_API_PASSWORD=yyyyyyyy \
+lego --email my@email.com --dns loopia --domains my.domain.com run
+'''
+
+Additional = '''
+### API user
+
+You can [generate a new API user](https://customerzone.loopia.com/api/) from your account page.
+
+It needs to have the following permissions:
+
+* addZoneRecord
+* getZoneRecords
+* removeZoneRecord
+* removeSubdomain
+'''
+
+[Configuration]
+  [Configuration.Credentials]
+    LOOPIA_API_USER = "API username"
+    LOOPIA_API_PASSWORD = "API password"
+  [Configuration.Additional]
+    LOOPIA_POLLING_INTERVAL = "Time between DNS propagation check"
+    LOOPIA_PROPAGATION_TIMEOUT = "Maximum waiting time for DNS propagation"
+    LOOPIA_TTL = "The TTL of the TXT record used for the DNS challenge"
+    LOOPIA_HTTP_TIMEOUT = "API request timeout"
+
+[Links]
+  API = "https://www.loopia.com/api"

providers/dns/loopia/loopia_mock_test.go

@@ -0,0 +1,236 @@
+package loopia
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+
+	"github.com/go-acme/lego/v4/providers/dns/loopia/internal"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+const (
+	exampleDomain    = "example.com"
+	exampleSubDomain = "_acme-challenge"
+	exampleRdata     = "LHDhK3oGRvkiefQnx7OOczTY5Tic_xZ6HcMOc_gmtoM"
+)
+
+func TestDNSProvider_Present(t *testing.T) {
+	mockedFindZoneByFqdn := func(fqdn string) (string, error) {
+		return exampleDomain + ".", nil
+	}
+
+	testCases := []struct {
+		desc string
+
+		getTXTRecordsError  error
+		getTXTRecordsReturn []internal.RecordObj
+		addTXTRecordError   error
+		callAddTXTRecord    bool
+		callGetTXTRecords   bool
+
+		expectedError               string
+		expectedInProgressTokenInfo int
+	}{
+		{
+			desc: "Present OK",
+
+			getTXTRecordsReturn: []internal.RecordObj{{Type: "TXT", Rdata: exampleRdata, RecordID: 12345678}},
+			callAddTXTRecord:    true,
+			callGetTXTRecords:   true,
+
+			expectedInProgressTokenInfo: 12345678,
+		},
+		{
+			desc: "AddTXTRecord fails",
+
+			addTXTRecordError: fmt.Errorf("unknown error: 'ADDTXT'"),
+			callAddTXTRecord:  true,
+
+			expectedError: "loopia: failed to add TXT record: unknown error: 'ADDTXT'",
+		},
+		{
+			desc: "GetTXTRecords fails",
+
+			getTXTRecordsError: fmt.Errorf("unknown error: 'GETTXT'"),
+			callAddTXTRecord:   true,
+			callGetTXTRecords:  true,
+
+			expectedError: "loopia: failed to get TXT records: unknown error: 'GETTXT'",
+		},
+		{
+			desc: "Failed to get ID",
+
+			callAddTXTRecord:  true,
+			callGetTXTRecords: true,
+
+			expectedError: "loopia: failed to find the stored TXT record",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			config := NewDefaultConfig()
+			config.APIUser = "apiuser"
+			config.APIPassword = "password"
+
+			client := &mockedClient{}
+
+			provider, err := NewDNSProviderConfig(config)
+			require.NoError(t, err)
+
+			provider.findZoneByFqdn = mockedFindZoneByFqdn
+			provider.client = client
+
+			if test.callAddTXTRecord {
+				client.On("AddTXTRecord", exampleDomain, exampleSubDomain, config.TTL, exampleRdata).Return(test.addTXTRecordError)
+			}
+
+			if test.callGetTXTRecords {
+				client.On("GetTXTRecords", exampleDomain, exampleSubDomain).Return(test.getTXTRecordsReturn, test.getTXTRecordsError)
+			}
+
+			err = provider.Present(exampleDomain, "token", "key")
+
+			client.AssertExpectations(t)
+
+			if test.expectedError == "" {
+				require.NoError(t, err)
+				assert.Equal(t, test.expectedInProgressTokenInfo, provider.inProgressInfo["token"])
+			} else {
+				require.Error(t, err)
+				assert.EqualError(t, err, test.expectedError)
+			}
+		})
+	}
+}
+
+func TestDNSProvider_Cleanup(t *testing.T) {
+	mockedFindZoneByFqdn := func(fqdn string) (string, error) {
+		return "example.com.", nil
+	}
+
+	testCases := []struct {
+		desc string
+
+		getTXTRecordsError   error
+		getTXTRecordsReturn  []internal.RecordObj
+		removeTXTRecordError error
+		removeSubdomainError error
+		callAddTXTRecord     bool
+		callGetTXTRecords    bool
+		callRemoveSubdomain  bool
+
+		expectedError string
+	}{
+		{
+			desc: "Cleanup Ok",
+
+			callAddTXTRecord:    true,
+			callGetTXTRecords:   true,
+			callRemoveSubdomain: true,
+		},
+		{
+			desc: "removeTXTRecord failed",
+
+			removeTXTRecordError: errors.New("authentication error"),
+			callAddTXTRecord:     true,
+
+			expectedError: "loopia: failed to remove TXT record: authentication error",
+		},
+		{
+			desc: "removeSubdomain failed",
+
+			removeSubdomainError: errors.New(`unknown error: "UNKNOWN_ERROR"`),
+			callAddTXTRecord:     true,
+			callGetTXTRecords:    true,
+			callRemoveSubdomain:  true,
+
+			expectedError: `loopia: failed to remove sub-domain: unknown error: "UNKNOWN_ERROR"`,
+		},
+		{
+			desc: "Dont call removeSubdomain when records",
+
+			getTXTRecordsReturn: []internal.RecordObj{{Type: "TXT", Rdata: "LEFTOVER"}},
+			callAddTXTRecord:    true,
+			callGetTXTRecords:   true,
+			callRemoveSubdomain: false,
+		},
+		{
+			desc: "getTXTRecords failed",
+
+			getTXTRecordsError:  errors.New(`unknown error: "UNKNOWN_ERROR"`),
+			callAddTXTRecord:    true,
+			callGetTXTRecords:   true,
+			callRemoveSubdomain: false,
+
+			expectedError: `loopia: failed to get TXT records: unknown error: "UNKNOWN_ERROR"`,
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			config := NewDefaultConfig()
+			config.APIUser = "apiuser"
+			config.APIPassword = "password"
+
+			client := &mockedClient{}
+
+			provider, err := NewDNSProviderConfig(config)
+			require.NoError(t, err)
+
+			provider.findZoneByFqdn = mockedFindZoneByFqdn
+			provider.client = client
+			provider.inProgressInfo["token"] = 12345678
+
+			if test.callAddTXTRecord {
+				client.On("RemoveTXTRecord", "example.com", "_acme-challenge", 12345678).Return(test.removeTXTRecordError)
+			}
+
+			if test.callGetTXTRecords {
+				client.On("GetTXTRecords", "example.com", "_acme-challenge").Return(test.getTXTRecordsReturn, test.getTXTRecordsError)
+			}
+
+			if test.callRemoveSubdomain {
+				client.On("RemoveSubdomain", "example.com", "_acme-challenge").Return(test.removeSubdomainError)
+			}
+
+			err = provider.CleanUp("example.com", "token", "key")
+
+			client.AssertExpectations(t)
+
+			if test.expectedError == "" {
+				require.NoError(t, err)
+			} else {
+				require.Error(t, err)
+				assert.EqualError(t, err, test.expectedError)
+			}
+		})
+	}
+}
+
+type mockedClient struct {
+	mock.Mock
+}
+
+func (c *mockedClient) RemoveTXTRecord(domain string, subdomain string, recordID int) error {
+	args := c.Called(domain, subdomain, recordID)
+	return args.Error(0)
+}
+
+func (c *mockedClient) AddTXTRecord(domain string, subdomain string, ttl int, value string) error {
+	args := c.Called(domain, subdomain, ttl, value)
+	return args.Error(0)
+}
+
+func (c *mockedClient) GetTXTRecords(domain string, subdomain string) ([]internal.RecordObj, error) {
+	args := c.Called(domain, subdomain)
+	return args.Get(0).([]internal.RecordObj), args.Error(1)
+}
+
+func (c *mockedClient) RemoveSubdomain(domain, subdomain string) error {
+	args := c.Called(domain, subdomain)
+	return args.Error(0)
+}

providers/dns/loopia/loopia_test.go

@@ -0,0 +1,214 @@
+package loopia
+
+import (
+	"testing"
+	"time"
+
+	"github.com/go-acme/lego/v4/platform/tester"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const envDomain = envNamespace + "DOMAIN"
+
+var envTest = tester.NewEnvTest(
+	EnvAPIUser,
+	EnvAPIPassword,
+	EnvTTL,
+	EnvPollingInterval,
+	EnvPropagationTimeout,
+	EnvHTTPTimeout).
+	WithDomain(envDomain)
+
+func TestSplitDomain(t *testing.T) {
+	provider := &DNSProvider{
+		findZoneByFqdn: func(fqdn string) (string, error) {
+			return "example.com.", nil
+		},
+	}
+
+	testCases := []struct {
+		desc      string
+		fqdn      string
+		subdomain string
+		domain    string
+	}{
+		{
+			desc:      "single subdomain",
+			fqdn:      "subdomain.example.com",
+			subdomain: "subdomain",
+			domain:    "example.com",
+		},
+		{
+			desc:      "double subdomain",
+			fqdn:      "sub.domain.example.com",
+			subdomain: "sub.domain",
+			domain:    "example.com",
+		},
+		{
+			desc:      "asterisk subdomain",
+			fqdn:      "*.example.com",
+			subdomain: "*",
+			domain:    "example.com",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			subdomain, domain := provider.splitDomain(test.fqdn)
+
+			assert.Equal(t, test.subdomain, subdomain)
+			assert.Equal(t, test.domain, domain)
+		})
+	}
+}
+
+func TestNewDNSProvider(t *testing.T) {
+	testCases := []struct {
+		desc          string
+		envVars       map[string]string
+		expectedError string
+	}{
+		{
+			desc: "success",
+			envVars: map[string]string{
+				EnvAPIUser:     "user",
+				EnvAPIPassword: "secret",
+			},
+		},
+		{
+			desc: "missing API user",
+			envVars: map[string]string{
+				EnvAPIUser:     "",
+				EnvAPIPassword: "secret",
+			},
+			expectedError: "loopia: some credentials information are missing: LOOPIA_API_USER",
+		},
+		{
+			desc: "missing API password",
+			envVars: map[string]string{
+				EnvAPIUser:     "user",
+				EnvAPIPassword: "",
+			},
+			expectedError: "loopia: some credentials information are missing: LOOPIA_API_PASSWORD",
+		},
+		{
+			desc:          "missing credentials",
+			envVars:       map[string]string{},
+			expectedError: "loopia: some credentials information are missing: LOOPIA_API_USER,LOOPIA_API_PASSWORD",
+		},
+	}
+
+	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.expectedError) == 0 {
+				require.NoError(t, err)
+				require.NotNil(t, p)
+			} else {
+				require.Error(t, err)
+				require.EqualError(t, err, test.expectedError)
+			}
+		})
+	}
+}
+
+func TestNewDNSProviderConfig(t *testing.T) {
+	testCases := []struct {
+		desc          string
+		config        *Config
+		expectedTTL   int
+		expectedError string
+	}{
+		{
+			desc: "success",
+			config: &Config{
+				APIUser:     "user",
+				APIPassword: "secret",
+				TTL:         3600,
+			},
+			expectedTTL: 3600,
+		},
+		{
+			desc:          "nil config user",
+			expectedError: "loopia: the configuration of the DNS provider is nil",
+		},
+		{
+			desc: "empty user",
+			config: &Config{
+				APIUser:     "",
+				APIPassword: "secret",
+				TTL:         3600,
+			},
+			expectedError: "loopia: credentials missing",
+		},
+		{
+			desc: "empty password",
+			config: &Config{
+				APIUser:     "user",
+				APIPassword: "",
+				TTL:         3600,
+			},
+			expectedTTL:   3600,
+			expectedError: "loopia: credentials missing",
+		},
+		{
+			desc: "too low TTL",
+			config: &Config{
+				APIUser:     "user",
+				APIPassword: "secret",
+				TTL:         299,
+			},
+			expectedTTL: 300,
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			p, err := NewDNSProviderConfig(test.config)
+
+			if len(test.expectedError) == 0 {
+				require.NoError(t, err)
+				require.NotNil(t, p)
+				assert.Equal(t, test.expectedTTL, p.config.TTL)
+			} else {
+				require.Error(t, err)
+				assert.EqualError(t, err, test.expectedError)
+			}
+		})
+	}
+}
+
+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(2 * time.Second)
+
+	err = provider.CleanUp(envTest.GetDomain(), "", "123d==")
+	require.NoError(t, err)
+}