From 46b3a9158c80ab5f1c76437ed1fb9fad2c13e96a Mon Sep 17 00:00:00 2001
From: LLeny <5269958+LLeny@users.noreply.github.com>
Date: Sun, 21 Oct 2018 18:17:23 +0800
Subject: [PATCH] Fixes Neilpang/acme.sh#1888

---
 dnsapi/dns_namecheap.sh | 64 +++++++++++++++++++++++++++++++++++------
 1 file changed, 56 insertions(+), 8 deletions(-)

diff --git a/dnsapi/dns_namecheap.sh b/dnsapi/dns_namecheap.sh
index 7089c2d0..a6651be6 100755
--- a/dnsapi/dns_namecheap.sh
+++ b/dnsapi/dns_namecheap.sh
@@ -199,9 +199,12 @@ _namecheap_check_config() {
 _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_set_tld_sld "$1"; then
+    return 1
+  fi
+
+  request="namecheap.domains.dns.getHosts&SLD=${_sld}&TLD=${_tld}"
 
   if ! _namecheap_post "$request"; then
     _err "$error"
@@ -231,7 +234,7 @@ EOT
 
   _debug hostrequestfinal "$_hostrequest"
 
-  request="namecheap.domains.dns.setHosts&SLD=${sld}&TLD=${tld}${_hostrequest}"
+  request="namecheap.domains.dns.setHosts&SLD=${_sld}&TLD=${_tld}${_hostrequest}"
 
   if ! _namecheap_post "$request"; then
     _err "$error"
@@ -244,9 +247,12 @@ EOT
 _del_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_set_tld_sld "$1"; then
+    return 1
+  fi
+
+  request="namecheap.domains.dns.getHosts&SLD=${_sld}&TLD=${_tld}"
 
   if ! _namecheap_post "$request"; then
     _err "$error"
@@ -286,7 +292,7 @@ EOT
 
   _debug hostrequestfinal "$_hostrequest"
 
-  request="namecheap.domains.dns.setHosts&SLD=${sld}&TLD=${tld}${_hostrequest}"
+  request="namecheap.domains.dns.setHosts&SLD=${_sld}&TLD=${_tld}${_hostrequest}"
 
   if ! _namecheap_post "$request"; then
     _err "$error"
@@ -306,3 +312,45 @@ _namecheap_add_host() {
   _hostindex=$(_math "$_hostindex" + 1)
   _hostrequest=$(printf '%s&HostName%d=%s&RecordType%d=%s&Address%d=%s&MXPref%d=%d&TTL%d=%d' "$_hostrequest" "$_hostindex" "$1" "$_hostindex" "$2" "$_hostindex" "$3" "$_hostindex" "$4" "$_hostindex" "$5")
 }
+
+_namecheap_set_tld_sld() {
+  domain=$1
+  _tld=""
+  _sld=""
+
+  i=2
+
+  while true; do
+
+    _tld=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug tld "$_tld"
+
+    if [ -z "$_tld" ]; then
+      _debug "invalid tld"
+      return 1
+    fi
+
+    j=$(_math "$i" - 1)
+
+    _sld=$(printf "%s" "$domain" | cut -d . -f 1-"$j")
+    _debug sld "$_sld"
+
+    if [ -z "$_sld" ]; then
+      _debug "invalid sld"
+      return 1
+    fi
+
+    request="namecheap.domains.dns.getHosts&SLD=$_sld&TLD=$_tld"
+
+    if ! _namecheap_post "$request"; then
+      _debug "sld($_sld)/tld($_tld) not found"
+    else
+      _debug "sld($_sld)/tld($_tld) found"
+      return 0
+    fi
+
+    i=$(_math "$i" + 1)
+
+  done
+
+}