include dnsimple api

Even though DNSimple is technically covered with lexicon not all
systems can install python pip's easily. For these systems it is useful
to have pure shell script API interactions.

README.md

@@ -292,6 +292,7 @@ You don't have to do anything manually!
 
 1. CloudFlare.com API
 1. DNSPod.cn API
+1. DNSimple API
 1. CloudXNS.com API
 1. GoDaddy.com API
 1. OVH, kimsufi, soyoustart and runabove API

dnsapi/README.md

@@ -468,6 +468,28 @@ acme.sh --issue --dns dns_dynu -d example.com -d www.example.com
 
 The `Dynu_ClientId` and `Dynu_Secret` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
 
+## 25. Use DNSimple API
+
+First you need to login to your DNSimple account and generate a new oauth token.
+
+https://dnsimple.com/a/{your account id}/account/access_tokens
+
+Note that this is an _account_ token and not a user token. The account token is
+needed to infer the `account_id` used in requests. A user token will not be able
+to determine the correct account to use.
+
+```
+export DNSimple_OAUTH_TOKEN="sdfsdfsdfljlbjkljlkjsdfoiwje"
+```
+
+To issue the cert just specify the `dns_dnsimple` API.
+
+```
+acme.sh --issue --dns dns_dnsimple -d example.com
+```
+
+The `DNSimple_OAUTH_TOKEN` will be saved in `~/.acme.sh/account.conf` and will
+be reused when needed.
 
 # Use custom API
 

dnsapi/dns_dnsimple.sh

@@ -0,0 +1,163 @@
+#!/usr/bin/env sh
+
+# DNSimple domain api
+#
+# This is your oauth token which can be acquired on the account page. Please
+# note that this must be an _account_ token and not a _user_ token.
+# https://dnsimple.com/a/<your account id>/account/access_tokens
+# DNSimple_OAUTH_TOKEN="sdfsdfsdfljlbjkljlkjsdfoiwje"
+
+DNSimple_API="https://api.dnsimple.com/v2"
+
+########  Public functions #####################
+
+# Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_dnsimple_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  if [ -z "$DNSimple_OAUTH_TOKEN" ]; then
+    DNSimple_OAUTH_TOKEN=""
+    _err "You have not set the dnsimple oauth token yet."
+    _err "Please visit https://dnsimple.com/user to generate it."
+    return 1
+  fi
+
+  # save the oauth token for later
+  _saveaccountconf DNSimple_OAUTH_TOKEN "$DNSimple_OAUTH_TOKEN"
+
+  _debug "Retrive account ID"
+  if ! _get_account_id; then
+    _err "failed to retrive account id"
+    return 1
+  fi
+  _debug _account_id "$_account_id"
+
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain "$_domain"
+  _debug _sub_domain "$_sub_domain"
+
+  _debug "Getting txt records"
+  _dnsimple_rest GET "$_account_id/zones/$_domain/records?per_page=100"
+
+  if ! _contains "$response" "\"id\":"; then
+    _err "Error"
+    return 1
+  fi
+
+  count=$(printf "%s" "$response" | _egrep_o "\"name\":\"$_sub_domain\"" | wc -l | _egrep_o "[0-9]+")
+  _debug count "$count"
+
+  if [ "$count" = "0" ]; then
+    _info "Adding record"
+    if _dnsimple_rest POST "$_account_id/zones/$_domain/records" "{\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"content\":\"$txtvalue\",\"ttl\":120}"; then
+      if printf -- "%s" "$response" | grep "\"name\":\"$_sub_domain\"" >/dev/null; then
+        _info "Added"
+        return 0
+      else
+        _err "Add txt record error."
+        return 1
+      fi
+    fi
+    _err "Add txt record error."
+  else
+    _info "Updating record"
+    record_id=$(printf "%s" "$response" | _egrep_o "\"id\":[^,]*,\"zone_id\":\"[^,]*\",\"parent_id\":null,\"name\":\"$_sub_domain\"" | cut -d: -f2 | cut -d, -f1)
+    _debug "record_id" "$record_id"
+
+    _dnsimple_rest PATCH "$_account_id/zones/$_domain/records/$record_id" "{\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"content\":\"$txtvalue\",\"ttl\":120}"
+    if [ "$?" = "0" ]; then
+      _info "Updated!"
+      #todo: check if the record takes effect
+      return 0
+    fi
+    _err "Update error"
+    return 1
+  fi
+}
+
+# fulldomain
+dns_dnsimple_rm() {
+  fulldomain=$1
+
+}
+
+####################  Private functions bellow ##################################
+# _acme-challenge.www.domain.com
+# returns
+#   _sub_domain=_acme-challenge.www
+#   _domain=domain.com
+_get_root() {
+  domain=$1
+  i=2
+  p=1
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    if [ -z "$h" ]; then
+      # not valid
+      return 1
+    fi
+
+    if ! _dnsimple_rest GET "$_account_id/zones/$h"; then
+      return 1
+    fi
+
+    if _contains "$response" 'not found'; then
+      _debug "$h not found"
+    else
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      _domain="$h"
+      return 0
+    fi
+    p="$i"
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_get_account_id() {
+  if ! _dnsimple_rest GET "whoami"; then
+    return 1
+  fi
+
+  if _contains "$response" "\"account\":null"; then
+    _err "no account associated with this token"
+    return 1
+  fi
+
+  if _contains "$response" "timeout"; then
+    _err "timeout retrieving account_id"
+    return 1
+  fi
+
+  _account_id=$(printf "%s" "$response" | _egrep_o "\"id\":[^,]*,\"email\":" | cut -d: -f2 | cut -d, -f1)
+  return 0
+}
+
+_dnsimple_rest() {
+  method=$1
+  path="$2"
+  data="$3"
+  request_url="$DNSimple_API/$path"
+  _debug "$path"
+
+  _H1="Accept: application/json"
+  _H2="Authorization: Bearer $DNSimple_OAUTH_TOKEN"
+  if [ "$data" ]; then
+    _H1="Content-Type: application/json"
+    _debug data "$data"
+    response="$(_post "$data" "$request_url" "" "$method")"
+  else
+    response="$(_get "$request_url")"
+  fi
+
+  if [ "$?" != "0" ]; then
+    _err "error $request_url"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}