Namecheap initial

dnsapi/dns_namecheap.sh

@@ -0,0 +1,233 @@
+#!/usr/bin/env sh
+
+# Namecheap API
+# https://www.namecheap.com/support/api/intro.aspx
+#
+# Requires Namecheap API key set in NAMECHEAP_API_KEY and NAMECHEAP_USERNAME set as environment variable
+#
+########  Public functions #####################
+
+NAMECHEAP_API="https://api.sandbox.namecheap.com/xml.response"
+
+#Usage: dns_namecheap_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_namecheap_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  if ! _namecheap_check_config; then
+     _err "$error"
+     return 1
+  fi
+
+  _namecheap_set_publicip
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+  _debug domain "$_domain"
+  _debug sub_domain "$_sub_domain"
+
+  _set_namecheap_TXT "$_domain" "$_sub_domain" "$txtvalue"
+}
+
+#Usage: fulldomain txtvalue
+#Remove the txt record after validation.
+dns_namecheap_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  _namecheap_set_publicip
+
+  if ! _namecheap_check_config; then
+     _err "$error"
+     return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+  _debug domain "$_domain"
+  _debug sub_domain "$_sub_domain"
+
+  _del_namecheap_TXT "$_domain" "$_sub_domain" "$txtvalue"
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+_get_root() {
+  domain=$1
+
+  if ! _namecheap_post "namecheap.domains.getList"; then
+     _err "$error"
+     return 1
+  fi
+
+  i=2
+  p=1
+
+  while true; do
+    
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    if ! _contains "$response" "$h"; then
+      _debug "$h not found"
+    else
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      _domain="$h"
+      return 0
+    fi
+    p="$i"
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_namecheap_set_publicip() {
+  _publicip="$(_get https://ifconfig.co/ip)"
+}
+
+_namecheap_post() {
+  command=$1
+  data="ApiUser=${NAMECHEAP_USERNAME}&ApiKey=${NAMECHEAP_API_KEY}&ClientIp=${_publicip}&UserName=${NAMECHEAP_USERNAME}&Command=${command}"
+ 
+  response="$(_post "$data" "$NAMECHEAP_API" "" "POST")"
+  _debug2 response "$response"
+
+  if _contains "$response" "Status=\"ERROR\"" >/dev/null; then
+    error=$(echo "$response" | _egrep_o ">.*<\\/Error>" | cut -d '<' -f 1 | tr -d '>')
+    _err "error $error"
+    return 1
+  fi
+
+  return 0
+}
+
+
+_namecheap_parse_host() {
+  _host=$1
+
+#HostID 	UniqueID of the host records
+#Name 	The domain or subdomain for which host record is set
+#Type 	The type of host record that is set
+#Address 	The value that is set for the host record (IP address for A record, URL for URL redirects, etc.)
+#MXPref 	MXPreference number
+#TTL	TTL value for the host record
+
+  _debug _host "$_host"
+
+  _hostid=$(echo "$_host" | _egrep_o 'HostId=".*"' | cut -d '"' -f 2)
+  _hostname=$(echo "$_host" | _egrep_o 'Name=".*"' | cut -d '"' -f 2)
+  _hosttype=$(echo "$_host" | _egrep_o 'Type=".*"' | cut -d '"' -f 2)
+  _hostaddress=$(echo "$_host" | _egrep_o 'Address=".*"' | cut -d '"' -f 2)
+  _hostmxpref=$(echo "$_host" | _egrep_o 'MXPref=".*"' | cut -d '"' -f 2)
+  _hostttl=$(echo "$_host" | _egrep_o 'TTL=".*"' | cut -d '"' -f 2)
+
+  _debug hostid "$_hostid"
+  _debug hostname "$_hostname"
+  _debug hosttype "$_hosttype"
+  _debug hostaddress "$_hostaddress"
+  _debug hostmxpref "$_hostmxpref"
+  _debug hostttl "$_hostttl"
+ 
+}
+
+_namecheap_check_config() {
+
+  if [ -z "$NAMECHEAP_API_KEY" ]; then
+    _err "No API key specified for Namecheap API."
+    _err "Create your key and export it as NAMECHEAP_API_KEY"
+    return 1
+  fi
+
+  if [ -z "$NAMECHEAP_USERNAME" ]; then
+    _err "No username key specified for Namecheap API."
+    _err "Create your key and export it as NAMECHEAP_USERNAME"
+    return 1
+  fi
+
+  _saveaccountconf NAMECHEAP_API_KEY "$NAMECHEAP_API_KEY"
+  _saveaccountconf NAMECHEAP_USERNAME "$NAMECHEAP_USERNAME"
+
+  return 0
+}
+
+_set_namecheap_TXT() {
+  subdomain=$2
+  txt=$3
+  tld=$(echo "$1" | cut -d '.' -f 2)
+  sld=$(echo "$1" | cut -d '.' -f 1)
+  request="namecheap.domains.dns.getHosts&SLD=$sld&TLD=$tld"
+
+  if ! _namecheap_post "$request"; then
+     _err "$error"
+     return 1
+  fi
+
+  hosts=$(echo "$response" | _egrep_o '<host .+ />')
+  _debug hosts "$hosts"
+
+  if [ -z "$hosts" ]; then
+     _error "Hosts not found"
+     return 1
+  fi
+
+  i=0
+  found=0
+
+  while read host; do
+
+    if _contains "$host" "<host"; then
+      i=$(_math "$i" + 1)
+      _namecheap_parse_host "$host"
+
+      if [ "$_hosttype" = "TXT" ] && [ "$_hostname" = "$subdomain" ]; then
+	hostrequest=$(printf '%s&HostName%d=%s&RecordType%d=%s&Address%d=%s&MXPref%d=%s&TTL%d=%s' "$hostrequest" $i "$_hostname" $i "$_hosttype" $i "$txt" $i "$_hostmxpref" $i "$_hostttl")
+        found=1
+      else
+	hostrequest=$(printf '%s&HostName%d=%s&RecordType%d=%s&Address%d=%s&MXPref%d=%s&TTL%d=%s' "$hostrequest" $i "$_hostname" $i "$_hosttype" $i "$_hostaddress" $i "$_hostmxpref" $i "$_hostttl")
+	_debug hostrequest "$hostrequest"
+      fi 
+
+    fi
+
+  done <<EOT
+$(echo -e "$hosts")
+EOT
+
+  if [ $found -eq 0 ]; then
+    i=$(_math "$i" + 1)
+    hostrequest=$(printf '%s&HostName%d=%s&RecordType%d=%s&Address%d=%s&MXPref%d=10&TTL%d=120' "$hostrequest" $i "$subdomain" $i "TXT" $i "$txt" $i $i)
+    _debug "not found"
+  fi
+
+  _debug hostrequestfinal "$hostrequest"
+
+  request="namecheap.domains.dns.setHosts&SLD=${sld}&TLD=${tld}${hostrequest}"
+
+  if ! _namecheap_post "$request"; then
+     _err "$error"
+     return 1
+  fi
+
+  return 0
+}
+