Add 'dns_dyn' DNS challenge validation script for Dyn Managed DNS API

dnsapi/README.md

@@ -540,6 +540,39 @@ acme.sh --issue --dns dns_namecom -d example.com -d www.example.com
 
 For issues, please report to https://github.com/raidenii/acme.sh/issues.
 
+## 29. Use Dyn Managed DNS API to automatically issue cert
+
+First, login to your Dyn Managed DNS account: https://portal.dynect.net/login/
+
+It is recommended to add a new user specific for API access.
+
+The minimum "Zones & Records Permissions" required are:
+```
+RecordAdd
+RecordUpdate
+RecordDelete
+RecordGet
+ZoneGet
+ZoneAddNode
+ZoneRemoveNode
+ZonePublish
+```
+
+Pass the API user credentials to the environment:
+```
+export DYN_Customer="customer"
+export DYN_Username="apiuser"
+export DYN_Password="secret"
+```
+
+Ok, let's issue a cert now:
+```
+acme.sh --issue --dns dns_dyn -d example.com -d www.example.com
+```
+
+The `DYN_Customer`, `DYN_Username` and `DYN_Password` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
+
 # Use custom API
 
 If your API is not supported yet, you can write your own DNS API.

dnsapi/dns_dyn.sh

@@ -0,0 +1,340 @@
+#!/usr/bin/env sh
+#
+# Dyn.com Domain API
+#
+# Author: Gerd Naschenweng
+# https://github.com/magicdude4eva
+#
+# Dyn Managed DNS API
+# https://help.dyn.com/dns-api-knowledge-base/
+#
+# It is recommended to add a "Dyn Managed DNS" user specific for API access.
+# The "Zones & Records Permissions" required by this script are:
+# --
+# RecordAdd
+# RecordUpdate
+# RecordDelete
+# RecordGet
+# ZoneGet
+# ZoneAddNode
+# ZoneRemoveNode
+# ZonePublish
+# --
+#
+# Pass credentials before "acme.sh --issue --dns dns_dyn ..."
+# --
+# export DYN_Customer="customer"
+# export DYN_Username="apiuser"
+# export DYN_Password="secret"
+# --
+
+DYN_API="https://api.dynect.net/REST"
+
+#REST_API
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "Challenge-code"
+dns_dyn_add() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  DYN_Customer="${DYN_Customer:-$(_readaccountconf_mutable DYN_Customer)}"
+  DYN_Username="${DYN_Username:-$(_readaccountconf_mutable DYN_Username)}"
+  DYN_Password="${DYN_Password:-$(_readaccountconf_mutable DYN_Password)}"
+  if [ -z "$DYN_Customer" ] || [ -z "$DYN_Username" ] || [ -z "$DYN_Password" ]; then
+    DYN_Customer=""
+    DYN_Username=""
+    DYN_Password=""
+    _err "You must export variables: DYN_Customer, DYN_Username and DYN_Password"
+    return 1
+  fi
+
+  #save the config variables to the account conf file.
+  _saveaccountconf_mutable DYN_Customer "$DYN_Customer"
+  _saveaccountconf_mutable DYN_Username "$DYN_Username"
+  _saveaccountconf_mutable DYN_Password "$DYN_Password"
+
+  if ! _dyn_get_authtoken; then
+    return 1
+  fi
+
+  if [ -z "$_dyn_authtoken" ]; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if ! _dyn_get_zone; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if ! _dyn_add_record; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if ! _dyn_publish_zone; then
+    _dyn_end_session
+    return 1
+  fi
+
+  _dyn_end_session
+
+  return 0
+}
+
+#Usage: fulldomain txtvalue
+#Remove the txt record after validation.
+dns_dyn_rm() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  DYN_Customer="${DYN_Customer:-$(_readaccountconf_mutable DYN_Customer)}"
+  DYN_Username="${DYN_Username:-$(_readaccountconf_mutable DYN_Username)}"
+  DYN_Password="${DYN_Password:-$(_readaccountconf_mutable DYN_Password)}"
+  if [ -z "$DYN_Customer" ] || [ -z "$DYN_Username" ] || [ -z "$DYN_Password" ]; then
+    DYN_Customer=""
+    DYN_Username=""
+    DYN_Password=""
+    _err "You must export variables: DYN_Customer, DYN_Username and DYN_Password"
+    return 1
+  fi
+
+  if ! _dyn_get_authtoken; then
+    return 1
+  fi
+
+  if [ -z "$_dyn_authtoken" ]; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if ! _dyn_get_zone; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if ! _dyn_get_record_id; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if [ -z "$_dyn_record_id" ]; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if ! _dyn_rm_record; then
+    _dyn_end_session
+    return 1
+  fi
+
+  if ! _dyn_publish_zone; then
+    _dyn_end_session
+    return 1
+  fi
+
+  _dyn_end_session
+
+  return 0
+}
+
+####################  Private functions below ##################################
+
+#get Auth-Token
+_dyn_get_authtoken() {
+
+  _info "Start Dyn API Session"
+
+  data="{\"customer_name\":\"$DYN_Customer\", \"user_name\":\"$DYN_Username\", \"password\":\"$DYN_Password\"}"
+  dyn_url="$DYN_API/Session/"
+  method="POST"
+
+  _debug data "$data"
+  _debug dyn_url "$dyn_url"
+
+  export _H1="Content-Type: application/json"
+
+  response="$(_post "$data" "$dyn_url" "" "$method")"
+  sessionstatus="$(printf "%s\n" "$response" | _egrep_o '"status" *: *"[^"]*' | head -n 1 | sed 's#^"status" *: *"##')"
+
+  _debug response "$response"
+  _debug sessionstatus "$sessionstatus"
+
+  if [ "$sessionstatus" = "success" ]; then
+    _dyn_authtoken="$(printf "%s\n" "$response" | _egrep_o '"token" *: *"[^"]*' | head -n 1 | sed 's#^"token" *: *"##')"
+    _info "Token received"
+    _debug _dyn_authtoken "$_dyn_authtoken"
+    return 0
+  fi
+
+  _dyn_authtoken=""
+  _err "get token failed"
+  return 1
+}
+
+#fulldomain=_acme-challenge.www.domain.com
+#returns
+# _dyn_zone=domain.com
+_dyn_get_zone() {
+  i=2
+  while true; do
+    domain="$(printf "%s" "$fulldomain" | cut -d . -f "$i-100")"
+    if [ -z "$domain" ]; then
+      break
+    fi
+
+    dyn_url="$DYN_API/Zone/$domain/"
+
+    export _H1="Auth-Token: $_dyn_authtoken"
+    export _H2="Content-Type: application/json"
+
+    response="$(_get "$dyn_url" "" "")"
+    sessionstatus="$(printf "%s\n" "$response" | _egrep_o '"status" *: *"[^"]*' | head -n 1 | sed 's#^"status" *: *"##')"
+
+    _debug dyn_url "$dyn_url"
+    _debug response "$response"
+    _debug sessionstatus "$sessionstatus"
+
+    if [ "$sessionstatus" = "success" ]; then
+      _dyn_zone="$domain"
+      return 0
+    fi
+    i=$(_math "$i" + 1)
+  done
+
+  _dyn_zone=""
+  _err "get zone failed"
+  return 1
+}
+
+#add TXT record
+_dyn_add_record() {
+
+  _info "Adding TXT record"
+
+  data="{\"rdata\":{\"txtdata\":\"$txtvalue\"},\"ttl\":\"300\"}"
+  dyn_url="$DYN_API/TXTRecord/$_dyn_zone/$fulldomain/"
+  method="POST"
+
+  export _H1="Auth-Token: $_dyn_authtoken"
+  export _H2="Content-Type: application/json"
+
+  response="$(_post "$data" "$dyn_url" "" "$method")"
+  sessionstatus="$(printf "%s\n" "$response" | _egrep_o '"status" *: *"[^"]*' | head -n 1 | sed 's#^"status" *: *"##')"
+
+  _debug response "$response"
+  _debug sessionstatus "$sessionstatus"
+
+  if [ "$sessionstatus" = "success" ]; then
+    _info "TXT Record successfully added"
+    return 0
+  fi
+
+  _err "add TXT record failed"
+  return 1
+}
+
+#publish the zone
+_dyn_publish_zone() {
+
+  _info "Publishing zone"
+
+  data="{\"publish\":\"true\"}"    
+  dyn_url="$DYN_API/Zone/$_dyn_zone/"
+  method="PUT"
+
+  export _H1="Auth-Token: $_dyn_authtoken"
+  export _H2="Content-Type: application/json"
+
+  response="$(_post "$data" "$dyn_url" "" "$method")"
+  sessionstatus="$(printf "%s\n" "$response" | _egrep_o '"status" *: *"[^"]*' | head -n 1 | sed 's#^"status" *: *"##')"
+
+  _debug response "$response"
+  _debug sessionstatus "$sessionstatus"
+
+  if [ "$sessionstatus" = "success" ]; then
+    _info "Zone published"
+    return 0
+  fi
+
+  _err "publish zone failed"
+  return 1
+}
+
+#get record_id of TXT record so we can delete the record
+_dyn_get_record_id() {
+
+  _info "Getting record_id of TXT record"
+
+  dyn_url="$DYN_API/TXTRecord/$_dyn_zone/$fulldomain/"
+
+  export _H1="Auth-Token: $_dyn_authtoken"
+  export _H2="Content-Type: application/json"
+
+  response="$(_get "$dyn_url" "" "")"
+  sessionstatus="$(printf "%s\n" "$response" | _egrep_o '"status" *: *"[^"]*' | head -n 1 | sed 's#^"status" *: *"##')"
+
+  _debug response "$response"
+  _debug sessionstatus "$sessionstatus"
+
+  if [ "$sessionstatus" = "success" ]; then
+    _dyn_record_id="$(printf "%s\n" "$response" | _egrep_o "\"data\" *: *\[\"/REST/TXTRecord/$_dyn_zone/$fulldomain/[^\"]*" | head -n 1 | sed "s#^\"data\" *: *\[\"/REST/TXTRecord/$_dyn_zone/$fulldomain/##")"
+    _debug _dyn_record_id "$_dyn_record_id"
+    return 0
+  fi
+
+  _dyn_record_id=""
+  _err "getting record_id failed"
+  return 1
+}
+
+#delete TXT record
+_dyn_rm_record() {
+
+  _info "Deleting TXT record"
+
+  dyn_url="$DYN_API/TXTRecord/$_dyn_zone/$fulldomain/$_dyn_record_id/"
+  method="DELETE"
+
+  _debug dyn_url "$dyn_url"
+
+  export _H1="Auth-Token: $_dyn_authtoken"
+  export _H2="Content-Type: application/json"
+
+  response="$(_post "" "$dyn_url" "" "$method")"
+  sessionstatus="$(printf "%s\n" "$response" | _egrep_o '"status" *: *"[^"]*' | head -n 1 | sed 's#^"status" *: *"##')"
+
+  _debug response "$response"
+  _debug sessionstatus "$sessionstatus"
+
+  if [ "$sessionstatus" = "success" ]; then
+    _info "TXT record successfully deleted"
+    return 0
+  fi
+
+  _err "delete TXT record failed"
+  return 1
+}
+
+#logout
+_dyn_end_session() {
+
+  _info "End Dyn API Session"
+
+  dyn_url="$DYN_API/Session/"
+  method="DELETE"
+
+  _debug dyn_url "$dyn_url"
+
+  export _H1="Auth-Token: $_dyn_authtoken"
+  export _H2="Content-Type: application/json"
+
+  response="$(_post "" "$dyn_url" "" "$method")"
+
+  _debug response "$response"
+
+  _dyn_authtoken=""
+  return 0
+}
+