Add support PowerDNS API (#322)

* Add support PowerDNS API

* Small fixes

README.md

@@ -241,7 +241,8 @@ You don't have do anything manually!
 4. Godaddy.com API
 5. OVH, kimsufi, soyoustart and runabove API
 6. AWS Route 53, see: https://github.com/Neilpang/acme.sh/issues/65
-7. lexicon dns api: https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api
+7. PowerDNS API, see: https://doc.powerdns.com/md/httpapi/README/
+8. lexicon dns api: https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api
    (DigitalOcean, DNSimple, DnsMadeEasy, DNSPark, EasyDNS, Namesilo, NS1, PointHQ, Rage4 and Vultr etc.)
 
 ##### More APIs are coming soon...

acme.sh

@@ -3173,6 +3173,13 @@ _initconf() {
 #
 #GD_Secret=\"sADDsdasdfsdfdssdgdsf\"
 
+#######################
+#PowerDNS:
+#PDNS_Url=\"http://ns.example.com:8081\"
+#PDNS_ServerId=\"localhost\"
+#PDNS_Token=\"0123456789ABCDEF\"
+#PDNS_Ttl=60
+
     " > $ACCOUNT_CONF_PATH
   fi
 }

dnsapi/README.md

@@ -66,7 +66,7 @@ The `CX_Key` and `CX_Secret`  will be saved in `~/.acme.sh/account.conf`, when n
 
 ## Use Godaddy.com domain api to automatically issue cert
 
-We support Godaddy integeration.
+We support Godaddy integration.
 
 First you need to login to your Godaddy account to get your api key and api secret.
 
@@ -89,6 +89,29 @@ acme.sh   --issue   --dns dns_gd   -d aa.com  -d www.aa.com
 
 The `GD_Key` and `GD_Secret`  will be saved in `~/.acme.sh/account.conf`, when next time you use cloudflare api, it will reuse this key.
 
+## Use PowerDNS embedded api to automatically issue cert
+
+We support PowerDNS embedded API integration.
+
+First you need to enable api and set your api-token in PowerDNS configuration.
+
+https://doc.powerdns.com/md/httpapi/README/
+
+```
+export PDNS_Url="http://ns.example.com:8081"
+export PDNS_ServerId="localhost"
+export PDNS_Token="0123456789ABCDEF"
+export PDNS_Ttl=60
+
+```
+
+Ok, let's issue cert now:
+```
+acme.sh   --issue   --dns dns_pdns   -d aa.com  -d www.aa.com
+```
+
+The `PDNS_Url`, `PDNS_ServerId`, `PDNS_Token` and `PDNS_Ttl` will be saved in `~/.acme.sh/account.conf`.
+
 ## Use OVH/kimsufi/soyoustart/runabove API
 
 https://github.com/Neilpang/acme.sh/wiki/How-to-use-OVH-domain-api
@@ -109,8 +132,6 @@ acme.sh  --issue  --dns  dns_myapi  -d aa.com  -d www.aa.com
 
 For more details, please check our sample script: [dns_myapi.sh](dns_myapi.sh)
 
-
-
 # Use lexicon dns api
 
 https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api

dnsapi/dns_pdns.sh

@@ -0,0 +1,127 @@
+#!/usr/bin/env sh
+
+#PowerDNS Emdedded API
+#https://doc.powerdns.com/md/httpapi/api_spec/
+#
+#PDNS_Url="http://ns.example.com:8081"
+#PDNS_ServerId="localhost"
+#PDNS_Token="0123456789ABCDEF"
+#PDNS_Ttl=60
+
+########  Public functions #####################
+#Usage: add _acme-challenge.www.domain.com "123456789ABCDEF0000000000000000000000000000000000000"
+dns_pdns_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  if [ -z "$PDNS_Url" ] ; then
+    _err "You don't specify PowerDNS address."
+    _err "Please set PDNS_Url and try again."
+    return 1
+  fi
+
+  if [ -z "$PDNS_ServerId" ] ; then
+    _err "You don't specify PowerDNS server id."
+    _err "Please set you PDNS_ServerId and try again."
+    return 1
+  fi
+
+  if [ -z "$PDNS_Token" ] ; then
+    _err "You don't specify PowerDNS token."
+    _err "Please create you PDNS_Token and try again."
+    return 1
+  fi
+
+  if [ -z "$PDNS_Ttl" ] ; then
+    PDNS_Ttl=60
+  fi
+
+  #save the api addr and key to the account conf file.
+  _saveaccountconf PDNS_Url "$PDNS_Url"
+  _saveaccountconf PDNS_ServerId "$PDNS_ServerId"
+  _saveaccountconf PDNS_Token "$PDNS_Token"
+
+  _debug "First detect the root zone"
+  if ! _get_root $fulldomain ; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain "$_domain"
+
+  if ! set_record "$_domain" "$fulldomain" "$txtvalue" ; then
+    return 1
+  fi
+
+  return 0
+}
+
+set_record() {
+  _info "Adding record"
+  root=$1
+  full=$2
+  txtvalue=$3
+
+  if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root." "{\"rrsets\": [{\"name\": \"$full.\", \"changetype\": \"REPLACE\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [{\"name\": \"$full.\", \"type\": \"TXT\", \"content\": \"\\\"$txtvalue\\\"\", \"disabled\": false, \"ttl\": $PDNS_Ttl}]}]}" ; then
+    _err "Set txt record error."
+    return 1
+  fi
+  if ! _pdns_rest "PUT" "/api/v1/servers/$PDNS_ServerId/zones/$root./notify" ; then
+    _err "Notify servers error."
+    return 1
+  fi
+  return 0
+}
+
+####################  Private functions bellow ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _domain=domain.com
+_get_root() {
+  domain=$1
+  i=1
+  p=1
+
+  if _pdns_rest "GET" "/api/v1/servers/$PDNS_ServerId/zones" ; then
+    _zones_response=$response
+  fi
+
+  while [ '1' ] ; do
+    h=$(printf $domain | cut -d . -f $i-100)
+    if [ -z "$h" ] ; then
+      return 1
+    fi
+
+    if printf "$_zones_response" | grep "\"name\": \"$h.\"" >/dev/null ; then
+      _domain=$h
+      return 0
+    fi
+
+    p=$i
+    i=$(expr $i + 1)
+  done
+  _debug "$domain not found"
+  return 1
+}
+
+_pdns_rest() {
+  method=$1
+  ep=$2
+  data=$3
+
+  _H1="X-API-Key: $PDNS_Token"
+
+  if [ ! "$method" = "GET" ] ; then
+    _debug data "$data"
+    response="$(_post "$data" "$PDNS_Url$ep" "" "$method")"
+  else
+    response="$(_get "$PDNS_Url$ep")"
+  fi
+
+  if [ "$?" != "0" ] ; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+
+  return 0
+}