acme.sh/dnsapi/dns_namecheap.sh

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#!/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 #####################
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if [ "$STAGE" -eq 1 ]; then
NAMECHEAP_API="https://api.sandbox.namecheap.com/xml.response"
else
NAMECHEAP_API="https://api.namecheap.com/xml.response"
fi
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#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
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if ! _namecheap_set_publicip; then
return 1
fi
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_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=$2
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if ! _namecheap_set_publicip; then
return 1
fi
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if ! _namecheap_check_config; then
_err "$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 "$i" + 1)
done
return 1
}
_namecheap_set_publicip() {
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if [ -z "$NAMECHEAP_SOURCEIP" ]; then
_err "No Source IP specified for Namecheap API."
_err "Use your public ip address or an url to retrieve it (e.g. https://ipconfig.co/ip) and export it as NAMECHEAP_SOURCEIP"
return 1
else
_saveaccountconf NAMECHEAP_SOURCEIP "$NAMECHEAP_SOURCEIP"
_debug sourceip "$NAMECHEAP_SOURCEIP"
ip=$(echo "$NAMECHEAP_SOURCEIP" | _egrep_o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}')
addr=$(echo "$NAMECHEAP_SOURCEIP" | _egrep_o '(http|https)://.*')
_debug2 ip "$ip"
_debug2 addr "$addr"
if [ -n "$ip" ]; then
_publicip="$ip"
elif [ -n "$addr" ]; then
_publicip=$(_get "$addr")
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else
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_err "No Source IP specified for Namecheap API."
_err "Use your public ip address or an url to retrieve it (e.g. https://ipconfig.co/ip) and export it as NAMECHEAP_SOURCEIP"
return 1
fi
fi
_debug publicip "$_publicip"
return 0
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}
_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=$1
_debug _host "$_host"
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_hostid=$(echo "$_host" | _egrep_o '\sHostId="[^"]*' | cut -d '"' -f 2)
_hostname=$(echo "$_host" | _egrep_o '\sName="[^"]*' | cut -d '"' -f 2)
_hosttype=$(echo "$_host" | _egrep_o '\sType="[^"]*' | cut -d '"' -f 2)
_hostaddress=$(echo "$_host" | _egrep_o '\sAddress="[^"]*' | cut -d '"' -f 2)
_hostmxpref=$(echo "$_host" | _egrep_o '\sMXPref="[^"]*' | cut -d '"' -f 2)
_hostttl=$(echo "$_host" | _egrep_o '\sTTL="[^"]*' | cut -d '"' -f 2)
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_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 "$error"
return 1
fi
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hosts=$(echo "$response" | _egrep_o '<host[^>]*')
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_debug hosts "$hosts"
if [ -z "$hosts" ]; then
_error "Hosts not found"
return 1
fi
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_namecheap_reset_hostList
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while read -r host; do
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if _contains "$host" "<host"; then
_namecheap_parse_host "$host"
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_namecheap_add_host "$_hostname" "$_hosttype" "$_hostaddress" "$_hostmxpref" "$_hostttl"
fi
done <<EOT
echo "$hosts"
EOT
_namecheap_add_host "$subdomain" "TXT" "$txt" 10 120
_debug hostrequestfinal "$_hostrequest"
request="namecheap.domains.dns.setHosts&SLD=${sld}&TLD=${tld}${_hostrequest}"
if ! _namecheap_post "$request"; then
_err "$error"
return 1
fi
return 0
}
_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=$tld"
if ! _namecheap_post "$request"; then
_err "$error"
return 1
fi
hosts=$(echo "$response" | _egrep_o '<host[^>]*')
_debug hosts "$hosts"
if [ -z "$hosts" ]; then
_error "Hosts not found"
return 1
fi
_namecheap_reset_hostList
found=0
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while read -r host; do
if _contains "$host" "<host"; then
_namecheap_parse_host "$host"
if [ "$_hosttype" = "TXT" ] && [ "$_hostname" = "$subdomain" ]; then
#&& [ "$_hostaddress" = "$txt" ]
_debug "TXT entry found"
found=1
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else
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_namecheap_add_host "$_hostname" "$_hosttype" "$_hostaddress" "$_hostmxpref" "$_hostttl"
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fi
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fi
done <<EOT
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echo "$hosts"
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EOT
if [ $found -eq 0 ]; then
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_debug "TXT entry not found"
return 0
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fi
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_debug hostrequestfinal "$_hostrequest"
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request="namecheap.domains.dns.setHosts&SLD=${sld}&TLD=${tld}${_hostrequest}"
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if ! _namecheap_post "$request"; then
_err "$error"
return 1
fi
return 0
}
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_namecheap_reset_hostList() {
_hostindex=0
_hostrequest=""
}
#Usage: _namecheap_add_host HostName RecordType Address MxPref TTL
_namecheap_add_host() {
_hostindex=$(_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")
}