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#!/usr/bin/env sh
# This script has been created at June 2020, based on knowledge base of wedos.com provider.
# It is intended to allow DNS-01 challenges for acme.sh using wedos's WAPI using XML.
# Author Michal Tuma <mxtuma@gmail.com>
# For issues send me an email
WEDOS_WAPI_ENDPOINT="https://api.wedos.com/wapi/xml"
TESTING_STAGE=
######## Public functions #####################
#Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_wedos_add() {
fulldomain=$1
txtvalue=$2
WEDOS_Username="${WEDOS_Username:-$(_readaccountconf_mutable WEDOS_Username)}"
WEDOS_Wapipass="${WEDOS_Wapipass:-$(_readaccountconf_mutable WEDOS_Wapipass)}"
WEDOS_Authtoken="${WEDOS_Authtoken:-$(_readaccountconf_mutable WEDOS_Authtoken)}"
if [ "${WEDOS_Authtoken}" ]; then
_debug "WEDOS Authtoken was already saved, using saved one"
_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
else
if [ -z "${WEDOS_Username}" ] || [ -z "${WEDOS_Wapipass}" ]; then
WEDOS_Username=""
WEDOS_Wapipass=""
_err "You didn't specify a WEDOS's username and wapi key yet."
_err "Please type: export WEDOS_Username=<your user name to login to wedos web account>"
_err "And: export WEDOS_Wapipass=<your WAPI passwords you setup using wedos web pages>"
_err "After you export those variables, run the script again, the values will be saved for future"
return 1
fi
#build WEDOS_Authtoken
_debug "WEDOS Authtoken were not saved yet, building"
WEDOS_Authtoken=$(printf '%s' "${WEDOS_Wapipass}" | sha1sum | head -c 40)
_debug "WEDOS_Authtoken step 1, WAPI PASS sha1 sum: '${WEDOS_Authtoken}'"
WEDOS_Authtoken="${WEDOS_Username}${WEDOS_Authtoken}"
_debug "WEDOS_Authtoken step 2, username concat with token without hours: '${WEDOS_Authtoken}'"
#save details
_saveaccountconf_mutable WEDOS_Username "${WEDOS_Username}"
_saveaccountconf_mutable WEDOS_Wapipass "${WEDOS_Wapipass}"
_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
fi
if ! _get_root "${fulldomain}"; then
_err "WEDOS Account do not contain primary domain to fullfill add of ${fulldomain}!"
return 1
fi
_debug _sub_domain "${_sub_domain}"
_debug _domain "${_domain}"
if _wapi_row_add "${_domain}" "${_sub_domain}" "${txtvalue}" "300"; then
_info "WEDOS WAPI: dns record added and dns changes were commited"
return 0
else
_err "FAILED TO ADD DNS RECORD OR COMMIT DNS CHANGES"
return 1
fi
}
#fulldomain txtvalue
dns_wedos_rm() {
fulldomain=$1
txtvalue=$2
WEDOS_Username="${WEDOS_Username:-$(_readaccountconf_mutable WEDOS_Username)}"
WEDOS_Wapipass="${WEDOS_Wapipass:-$(_readaccountconf_mutable WEDOS_Wapipass)}"
WEDOS_Authtoken="${WEDOS_Authtoken:-$(_readaccountconf_mutable WEDOS_Authtoken)}"
if [ "${WEDOS_Authtoken}" ]; then
_debug "WEDOS Authtoken was already saved, using saved one"
_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
else
if [ -z "${WEDOS_Username}" ] || [ -z "${WEDOS_Wapipass}" ]; then
WEDOS_Username=""
WEDOS_Wapipass=""
_err "You didn't specify a WEDOS's username and wapi key yet."
_err "Please type: export WEDOS_Username=<your user name to login to wedos web account>"
_err "And: export WEDOS_Wapipass=<your WAPI passwords you setup using wedos web pages>"
_err "After you export those variables, run the script again, the values will be saved for future"
return 1
fi
#build WEDOS_Authtoken
_debug "WEDOS Authtoken were not saved yet, building"
WEDOS_Authtoken=$(printf '%s' "${WEDOS_Wapipass}" | sha1sum | head -c 40)
_debug "WEDOS_Authtoken step 1, WAPI PASS sha1 sum: '${WEDOS_Authtoken}'"
WEDOS_Authtoken="${WEDOS_Username}${WEDOS_Authtoken}"
_debug "WEDOS_Authtoken step 2, username concat with token without hours: '${WEDOS_Authtoken}'"
#save details
_saveaccountconf_mutable WEDOS_Username "${WEDOS_Username}"
_saveaccountconf_mutable WEDOS_Wapipass "${WEDOS_Wapipass}"
_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
fi
if ! _get_root "${fulldomain}"; then
_err "WEDOS Account do not contain primary domain to fullfill add of ${fulldomain}!"
return 1
fi
_debug _sub_domain "${_sub_domain}"
_debug _domain "${_domain}"
if _wapi_find_row "${_domain}" "${_sub_domain}" "${txtvalue}"; then
_info "WEDOS WAPI: dns record found with id '${_row_id}'"
if _wapi_delete_row "${_domain}" "${_row_id}"; then
_info "WEDOS WAPI: dns row were deleted and changes commited!"
return 0
fi
fi
_err "Requested dns row were not found or was imposible to delete it, do it manually"
_err "Delete: ${fulldomain}"
_err "Value: ${txtvalue}"
return 1
}
#################### Private functions below ##################################
# Function _wapi_post(), only takes data, prepares auth token and provide result
# $1 - WAPI command string, like 'dns-domains-list'
# $2 - WAPI data for given command, is not required
# returns WAPI response if request were successfully delivered to WAPI endpoint
_wapi_post() {
command=$1
data=$2
_debug "Command : ${command}"
_debug "Data : ${data}"
if [ -z "${command}" ]; then
_err "No command were provided, implamantation error!"
return 1
fi
# Prepare authentification token
hour=$(date +%H)
token=$(printf '%s' "${WEDOS_Authtoken}${hour}" | sha1sum | head -c 40)
_debug "Authentification token is '${token}'"
# Build xml request
request="request=<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<request>\
<user>${WEDOS_Username}</user>\
<auth>${token}</auth>\
<command>${command}</command>"
if [ -z "${data}" ]; then
echo "" 1>/dev/null
else
request="${request}${data}"
fi
if [ -z "$TESTING_STAGE" ]; then
echo "" 1>/dev/null
else
request="${request}\
<test>1</test>"
fi
request="${request}\
</request>"
_debug "Request to WAPI is: ${request}"
if ! response="$(_post "${request}" "$WEDOS_WAPI_ENDPOINT")"; then
_err "Error contacting WEDOS WAPI with command ${command}"
return 1
fi
_debug "Response : ${response}"
echo "${response}" | grep "<code>1000</code>" 1>/dev/null 2>/dev/null
return "$?"
}
# _get_root() function, for provided full domain, like _acme_challenge.www.example.com verify if WEDOS contains a primary active domain and found what is subdomain
# $1 - full domain to verify, ie _acme_challenge.www.example.com
# build ${_domain} found at WEDOS, like example.com and ${_sub_domain} from provided full domain, like _acme_challenge.www
_get_root() {
domain=$1
if [ -z "${domain}" ]; then
_err "Function _get_root was called without argument, implementation error!"
return 1
fi
_debug "Get root for domain: ${domain}"
_debug "Getting list of domains using WAPI ..."
if ! _wapi_post "dns-domains-list"; then
_err "Error on WAPI request for list of domains, response : ${response}"
return 1
else
_debug "DNS list were successfully retrieved, response : ${response}"
fi
for xml_domain in $(echo "${response}" | tr -d '\012\015' | grep -o -E "<domain>( )*<name>.*</name>( )*<type>primary</type>( )*<status>active</status>" | grep -o -E "<name>.*</name>"); do
_debug "Active and primary XML DOMAIN found: ${xml_domain}"
end_of_name=$((${#xml_domain} - 7))
xml_domain_name=$(echo "${xml_domain}" | cut -c 7-${end_of_name})
_debug "Found primary active domain: ${xml_domain_name}"
regex=".*\\."$(echo "${xml_domain_name}" | sed 's/\./\\./g')
_debug "Regex for matching domain: '${regex}'"
if ! echo "${domain}" | grep -E "${regex}" 1>/dev/null 2>/dev/null; then
_debug "found domain do not match required"
else
end_of_name=$((${#domain} - ${#xml_domain_name} - 1))
_domain=${xml_domain_name}
_sub_domain=$(echo "${domain}" | cut -c -${end_of_name})
_info "Domain '${_domain}' was found at WEDOS account as primary, and subdomain is '${_sub_domain}'!"
return 0
fi
done
return 1
}
# for provided domain, it commites all performed changes
_wapi_dns_commit() {
domain=$1
if [ -z "${domain}" ]; then
_err "Invalid request to commit dns changes, domain is empty, implementation error!"
return 1
fi
data=" <data>\
<name>${domain}</name>\
</data>"
if ! _wapi_post "dns-domain-commit" "${data}"; then
_err "Error on WAPI request to commit DNS changes, response : ${response}"
_err "PLEASE USE WEB ACCESS TO CHECK IF CHANGES ARE REQUIRED TO COMMIT OR ROLLBACKED IMMEDIATELLY!"
return 1
else
_debug "DNS CHANGES COMMITED, response : ${response}"
_info "WEDOS DNS WAPI: Changes were commited to domain '${domain}'"
fi
return 0
}
# add one TXT dns row to a specified fomain
_wapi_row_add() {
domain=$1
sub_domain=$2
value=$3
ttl=$4
if [ -z "${domain}" ] || [ -z "${sub_domain}" ] || [ -z "${value}" ] || [ -z "${ttl}" ]; then
_err "Invalid request to add record, domain: '${domain}', sub_domain: '${sub_domain}', value: '${value}' and ttl: '${ttl}', on of required input were not provided, implementation error!"
return 1
fi
# Prepare data for request to WAPI
data=" <data>\
<domain>${domain}</domain>\
<name>${sub_domain}</name>\
<ttl>${ttl}</ttl>\
<type>TXT</type>\
<rdata>${value}</rdata>\
<auth_comment>Created using WAPI from acme.sh</auth_comment>\
</data>"
_debug "Adding row using WAPI ..."
if ! _wapi_post "dns-row-add" "${data}"; then
_err "Error on WAPI request to add new TXT row, response : ${response}"
return 1
else
_debug "ROW ADDED, response : ${response}"
_info "WEDOS DNS WAPI: Row to domain '${domain}' with name '${sub_domain}' were successfully added with value '${value}' and ttl set to ${ttl}"
fi
# Now we have to commit
_wapi_dns_commit "${domain}"
return "$?"
}
_wapi_find_row() {
domain=$1
sub_domain=$2
value=$3
if [ -z "${domain}" ] || [ -z "${sub_domain}" ] || [ -z "${value}" ]; then
_err "Invalud request to finad a row, domain: '${domain}', sub_domain: '${sub_domain}' and value: '${value}', one of required input were not provided, implementation error!"
return 1
fi
data=" <data>\
<domain>${domain}</domain>\
</data>"
_debug "Searching rows using WAPI ..."
if ! _wapi_post "dns-rows-list" "${data}"; then
_err "Error on WAPI request to list domain rows, response : ${response}"
return 1
fi
_debug "Domain rows found, response : ${response}"
sub_domain_regex=$(echo "${sub_domain}" | sed "s/\./\\\\./g")
_debug "Subdomain regex '${sub_domain_regex}'"
for xml_row in $(echo "${response}" | tr -d '\012\015' | grep -o -E "<row>( )*<ID>[0-9]*</ID>( )*<name>${sub_domain_regex}</name>( )*<ttl>[0-9]*</ttl>( )*<rdtype>TXT</rdtype>( )*<rdata>${value}</rdata>" | grep -o -e "<ID>[0-9]*</ID>"); do
_debug "Found row in DNS with ID : ${xml_row}"
_row_id=$(echo "${xml_row}" | grep -o -E "[0-9]*")
_info "WEDOS API: Found DNS row id ${_row_id} for domain ${domain}"
return 0
done
_info "WEDOS API: No TXT row found for domain '${domain}' with name '${sub_domain}' and value '${value}'"
return 1
}
_wapi_delete_row() {
domain=$1
row_id=$2
if [ -z "${domain}" ] || [ -z "${row_id}" ]; then
_err "Invalid request to delete domain dns row, domain: '${domain}' and row_id: '${row_id}', one of required input were not provided, implementation error!"
return 1
fi
data=" <data>\
<domain>${domain}</domain>
<row_id>${row_id}</row_id>
</data>"
_debug "Deleting dns row using WAPI ..."
if ! _wapi_post "dns-row-delete" "${data}"; then
_err "Error on WAPI request to delete dns row, response: ${response}"
return 1
fi
_debug "DNS row were deleted, response: ${response}"
_info "WEDOS API: Required dns domain row with row_id '${row_id}' were correctly deleted at domain '${domain}'"
# Now we have to commit changes
_wapi_dns_commit "${domain}"
return "$?"
}