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408 lines
16 KiB
408 lines
16 KiB
#!/usr/bin/env sh
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# This script has been created at June 2020, based on knowledge base of wedos.com provider.
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# It is intended to allow DNS-01 challenges for acme.sh using wedos's WAPI using XML.
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# See WIKI page how to use it https://github.com/acmesh-official/acme.sh/wiki/dnsapi#117-use-wedos-dns-api
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# Author Michal Tuma <mxtuma@gmail.com>
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# For issues, please perform the action with --debug switch and report to https://github.com/acmesh-official/acme.sh/issues/3166
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# MAIN WAPI ENDPOINT
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WEDOS_WAPI_ENDPOINT="https://api.wedos.com/wapi/xml"
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# WHEN SET TO ANYTHINK, THEN GENERATED XML WAPI REQUEST ADD TESTING SWITCH
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TESTING_STAGE=
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######## Public functions #####################
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# Main implemented function for acme.sh.
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# Function manages provided user informations, parse requested domain and subdomain name and create new TXT row with provided value.
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# WEDOS WAPI Requests usage:
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# - dns-domains-list : to retrieve a list of valid managed domains and check input $fulldomain
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# - dns-row-add : to add new TXT row to a $fulldomain with $txtvalue set
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# - dns-domain-commit : to commit added dns row
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# Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
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dns_wedos_add() {
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fulldomain=$1
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txtvalue=$2
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WEDOS_Username="${WEDOS_Username:-$(_readaccountconf_mutable WEDOS_Username)}"
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WEDOS_Wapipass="${WEDOS_Wapipass:-$(_readaccountconf_mutable WEDOS_Wapipass)}"
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WEDOS_Authtoken="${WEDOS_Authtoken:-$(_readaccountconf_mutable WEDOS_Authtoken)}"
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if [ "${WEDOS_Authtoken}" ]; then
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_debug "WEDOS Authtoken was already saved, using saved one"
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_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
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else
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if [ -z "${WEDOS_Username}" ] || [ -z "${WEDOS_Wapipass}" ]; then
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WEDOS_Username=""
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WEDOS_Wapipass=""
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_err "You didn't specify a WEDOS's username and wapi key yet."
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_err "Please type: export WEDOS_Username=<your user name to login to wedos web account>"
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_err "And: export WEDOS_Wapipass=<your WAPI passwords you setup using wedos web pages>"
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_err "After you export those variables, run the script again, the values will be saved for future"
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return 1
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fi
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#build WEDOS_Authtoken
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_debug "WEDOS Authtoken were not saved yet, building"
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WEDOS_Authtoken=$(printf '%s' "${WEDOS_Wapipass}" | _digest "sha1" "true" | head -c 40)
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_debug "WEDOS_Authtoken step 1, WAPI PASS sha1 sum: '${WEDOS_Authtoken}'"
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WEDOS_Authtoken="${WEDOS_Username}${WEDOS_Authtoken}"
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_debug "WEDOS_Authtoken step 2, username concat with token without hours: '${WEDOS_Authtoken}'"
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#save details
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_saveaccountconf_mutable WEDOS_Username "${WEDOS_Username}"
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_saveaccountconf_mutable WEDOS_Wapipass "${WEDOS_Wapipass}"
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_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
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fi
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if ! _get_root "${fulldomain}"; then
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_err "WEDOS Account do not contain primary domain to fullfill add of ${fulldomain}!"
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return 1
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fi
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_debug _sub_domain "${_sub_domain}"
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_debug _domain "${_domain}"
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if _wapi_row_add "${_domain}" "${_sub_domain}" "${txtvalue}" "300"; then
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_info "WEDOS WAPI: dns record added and dns changes were commited"
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return 0
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else
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_err "FAILED TO ADD DNS RECORD OR COMMIT DNS CHANGES"
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return 1
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fi
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}
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# Main implemented function for acme.sh
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# This function verify provided domain if is managed by stored account, try to find TXT row for the domain and removes it if it is found.
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# WEDOS WAPI Requests used:
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# - dns-domains-list : to verify requested $fulldomain is managed and to parse what is subdomain from it
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# - dns-rows-list : to verify if provided $txtvalue exists as TXT entry
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# - dns-row-delete : to request deletion of TXT value
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# - dns-domain-commit : to commit deletion
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# Usage: rm _acme_challenge.www.domain.org "e89fhwie73869yhe993e27d4hi"
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dns_wedos_rm() {
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fulldomain=$1
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txtvalue=$2
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WEDOS_Username="${WEDOS_Username:-$(_readaccountconf_mutable WEDOS_Username)}"
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WEDOS_Wapipass="${WEDOS_Wapipass:-$(_readaccountconf_mutable WEDOS_Wapipass)}"
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WEDOS_Authtoken="${WEDOS_Authtoken:-$(_readaccountconf_mutable WEDOS_Authtoken)}"
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if [ "${WEDOS_Authtoken}" ]; then
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_debug "WEDOS Authtoken was already saved, using saved one"
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_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
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else
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if [ -z "${WEDOS_Username}" ] || [ -z "${WEDOS_Wapipass}" ]; then
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WEDOS_Username=""
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WEDOS_Wapipass=""
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_err "You didn't specify a WEDOS's username and wapi key yet."
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_err "Please type: export WEDOS_Username=<your user name to login to wedos web account>"
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_err "And: export WEDOS_Wapipass=<your WAPI passwords you setup using wedos web pages>"
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_err "After you export those variables, run the script again, the values will be saved for future"
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return 1
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fi
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#build WEDOS_Authtoken
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_debug "WEDOS Authtoken were not saved yet, building"
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WEDOS_Authtoken=$(printf '%s' "${WEDOS_Wapipass}" | sha1sum | head -c 40)
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_debug "WEDOS_Authtoken step 1, WAPI PASS sha1 sum: '${WEDOS_Authtoken}'"
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WEDOS_Authtoken="${WEDOS_Username}${WEDOS_Authtoken}"
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_debug "WEDOS_Authtoken step 2, username concat with token without hours: '${WEDOS_Authtoken}'"
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#save details
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_saveaccountconf_mutable WEDOS_Username "${WEDOS_Username}"
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_saveaccountconf_mutable WEDOS_Wapipass "${WEDOS_Wapipass}"
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_saveaccountconf_mutable WEDOS_Authtoken "${WEDOS_Authtoken}"
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fi
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if ! _get_root "${fulldomain}"; then
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_err "WEDOS Account do not contain primary domain to fullfill add of ${fulldomain}!"
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return 1
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fi
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_debug _sub_domain "${_sub_domain}"
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_debug _domain "${_domain}"
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if _wapi_find_row "${_domain}" "${_sub_domain}" "${txtvalue}"; then
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_info "WEDOS WAPI: dns record found with id '${_row_id}'"
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if _wapi_delete_row "${_domain}" "${_row_id}"; then
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_info "WEDOS WAPI: dns row were deleted and changes commited!"
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return 0
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fi
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fi
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_err "Requested dns row were not found or was imposible to delete it, do it manually"
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_err "Delete: ${fulldomain}"
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_err "Value: ${txtvalue}"
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return 1
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}
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#################### Private functions below ##################################
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# Function _wapi_post(), only takes data, prepares auth token and provide result
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# $1 - WAPI command string, like 'dns-domains-list'
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# $2 - WAPI data for given command, is not required
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# returns WAPI response if request were successfully delivered to WAPI endpoint
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_wapi_post() {
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command=$1
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data=$2
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_debug "Command : ${command}"
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_debug "Data : ${data}"
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if [ -z "${command}" ]; then
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_err "No command were provided, implamantation error!"
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return 1
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fi
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# Prepare authentification token
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hour=$(TZ='Europe/Prague' date +%H)
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token=$(printf '%s' "${WEDOS_Authtoken}${hour}" | _digest "sha1" "true" | head -c 40)
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_debug "Authentification token is '${token}'"
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# Build xml request
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request="request=<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
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<request>\
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<user>${WEDOS_Username}</user>\
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<auth>${token}</auth>\
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<command>${command}</command>"
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if [ -z "${data}" ]; then
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echo "" 1>/dev/null
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else
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request="${request}${data}"
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fi
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if [ -z "$TESTING_STAGE" ]; then
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echo "" 1>/dev/null
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else
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request="${request}\
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<test>1</test>"
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fi
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request="${request}\
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</request>"
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_debug "Request to WAPI is: ${request}"
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if ! response="$(_post "${request}" "$WEDOS_WAPI_ENDPOINT")"; then
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_err "Error contacting WEDOS WAPI with command ${command}"
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return 1
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fi
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_debug "Response : ${response}"
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_contains "${response}" "<code>1000</code>"
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return "$?"
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}
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# _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
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# $1 - full domain to verify, ie _acme_challenge.www.example.com
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# builds ${_domain} found at WEDOS, like example.com and ${_sub_domain} from provided full domain, like _acme_challenge.www
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_get_root() {
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domain=$1
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if [ -z "${domain}" ]; then
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_err "Function _get_root was called without argument, implementation error!"
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return 1
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fi
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_debug "Get root for domain: ${domain}"
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_debug "Getting list of domains using WAPI ..."
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if ! _wapi_post "dns-domains-list"; then
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_err "Error on WAPI request for list of domains, response : ${response}"
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return 1
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else
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_debug "DNS list were successfully retrieved, response : ${response}"
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fi
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# In for each cycle, try parse the response to find primary active domains
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# For cycle description:
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# 1st tr -d '\011\012\015' = remove all newlines and tab characters - whole XML became single line
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# 2nd sed "s/^.*<data>[ ]*//g" = remove all the xml data from the beggining of the XML - XML now start with the content of <data> element
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# 3rd sed "s/<\/data>.*$//g" = remove all the data after the data xml element - XML now contains only the content of data xml element
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# 4th sed "s/>[ ]*<\([^\/]\)/><\1/g" = remove all spaces between XML tag and XML start tag - XML now contains content of data xml element and is without spaces between end and start xml tags
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# 5th sed "s/<domain>//g" = remove all domain xml start tags - XML now contains only <name>...</name><type>...</type><status>...</status> </domain>(next xml domain)
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# 6th sed "s/[ ]*<\/domain>/\n/g"= replace all "spaces</domain>" by new line - now we create multiple lines each should contain only <name>...</name><type>...</type><status>...</status>
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# 7th sed -n "/<name>\([a-zA-Z0-9_\-\.]\+\)<\/name><type>primary<\/type><status>active<\/status>/p" = remove all non primary or non active domains lines
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# 8th sed "s/<name>\([a-zA-Z0-9_\-\.]\+\)<\/name><type>primary<\/type><status>active<\/status>/\1/g" = substitute for domain names only
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for xml_domain in $(echo "${response}" | tr -d '\011\012\015' | sed "s/^.*<data>[ ]*//g" | sed "s/<\/data>.*$//g" | sed "s/>[ ]*<\([^\/]\)/><\1/g" | sed "s/<domain>//g" | sed "s/[ ]*<\/domain>/\n/g" | sed -n "/<name>\([a-zA-Z0-9_\-\.]\+\)<\/name><type>primary<\/type><status>active<\/status>/p" | sed "s/<name>\([a-zA-Z0-9_\-\.]\+\)<\/name><type>primary<\/type><status>active<\/status>/\1/g"); do
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_debug "Found primary active domain: ${xml_domain}"
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if _endswith "${domain}" "${xml_domain}"; then
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length_difference=$(_math "${#domain} - ${#xml_domain}")
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possible_subdomain=$(echo "${domain}" | cut -c -"${length_difference}")
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if _endswith "${possible_subdomain}" "."; then
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length_difference=$(_math "${length_difference} - 1")
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_domain=${xml_domain}
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_sub_domain=$(echo "${possible_subdomain}" | cut -c -"${length_difference}")
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_info "Domain '${_domain}' was found at WEDOS account as primary, and subdomain is '${_sub_domain}'!"
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return 0
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fi
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fi
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_debug " ... found domain does not match required!"
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done
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return 1
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}
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# for provided domain, it commites all performed changes
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_wapi_dns_commit() {
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domain=$1
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if [ -z "${domain}" ]; then
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_err "Invalid request to commit dns changes, domain is empty, implementation error!"
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return 1
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fi
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data=" <data>\
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<name>${domain}</name>\
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</data>"
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if ! _wapi_post "dns-domain-commit" "${data}"; then
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_err "Error on WAPI request to commit DNS changes, response : ${response}"
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_err "PLEASE USE WEB ACCESS TO CHECK IF CHANGES ARE REQUIRED TO COMMIT OR ROLLBACKED IMMEDIATELLY!"
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return 1
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else
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_debug "DNS CHANGES COMMITED, response : ${response}"
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_info "WEDOS DNS WAPI: Changes were commited to domain '${domain}'"
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fi
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return 0
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}
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# add one TXT dns row to a specified fomain
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_wapi_row_add() {
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domain=$1
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sub_domain=$2
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value=$3
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ttl=$4
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if [ -z "${domain}" ] || [ -z "${sub_domain}" ] || [ -z "${value}" ] || [ -z "${ttl}" ]; then
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_err "Invalid request to add record, domain: '${domain}', sub_domain: '${sub_domain}', value: '${value}' and ttl: '${ttl}', on of required input were not provided, implementation error!"
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return 1
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fi
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# Prepare data for request to WAPI
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data=" <data>\
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<domain>${domain}</domain>\
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<name>${sub_domain}</name>\
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<ttl>${ttl}</ttl>\
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<type>TXT</type>\
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<rdata>${value}</rdata>\
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<auth_comment>Created using WAPI from acme.sh</auth_comment>\
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</data>"
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_debug "Adding row using WAPI ..."
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if ! _wapi_post "dns-row-add" "${data}"; then
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_err "Error on WAPI request to add new TXT row, response : ${response}"
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return 1
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else
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_debug "ROW ADDED, response : ${response}"
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_info "WEDOS DNS WAPI: Row to domain '${domain}' with name '${sub_domain}' were successfully added with value '${value}' and ttl set to ${ttl}"
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fi
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# Now we have to commit
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_wapi_dns_commit "${domain}"
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return "$?"
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}
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_wapi_find_row() {
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domain=$1
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sub_domain=$2
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value=$3
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if [ -z "${domain}" ] || [ -z "${sub_domain}" ] || [ -z "${value}" ]; then
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_err "Invalud request to finad a row, domain: '${domain}', sub_domain: '${sub_domain}' and value: '${value}', one of required input were not provided, implementation error!"
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return 1
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fi
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data=" <data>\
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<domain>${domain}</domain>\
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</data>"
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_debug "Searching rows using WAPI ..."
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if ! _wapi_post "dns-rows-list" "${data}"; then
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_err "Error on WAPI request to list domain rows, response : ${response}"
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return 1
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fi
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_debug "Domain rows found, response : ${response}"
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# Prepare sub domain regex which will be later used for search domain row
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# from _acme_challenge.sub it should be _acme_challenge\.sub
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sub_domain_regex=$(echo "${sub_domain}" | sed "s/\./\\\\./g")
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_debug "Subdomain regex '${sub_domain_regex}'"
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# In for each cycle loops over the domains rows, description:
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# 1st tr -d '\011\012\015' = delete all newlines and tab characters - XML became a single line
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# 2nd sed "s/^.*<data>[ ]*//g" = remove all from the beggining to the start of the content of the data xml element - XML is without unusefull beginning
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# 3rd sed "s/[ ]*<\/data>.*$//g" = remove the end of the xml starting with xml end tag data - XML contains only the content of data xml element and is trimmed
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# 4th sed "s/>[ ]*<\([^\/]\)/><\1/g" = remove all spaces between XML tag and XML start tag - XML now contains content of data xml element and is without spaces between end and start xml tags
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# 5th sed "s/<row>//g" = remove all row xml start tags - XML now contains rows xml element content and its end tag
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# 6th sed "s/[ ]*<\/row>/\n/g" = replace all "spaces</row>" by new line - now we create multiple lines each should contain only single row xml content
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# 7th sed -n "/<name>${sub_domain_regex}<\/name>.*<rdtype>TXT<\/rdtype>/p" = remove all non TXT and non name matching row lines - now we have only xml lines with TXT rows matching requested values
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# 8th sed "s/^<ID>\([0-9]\+\)<\/ID>.*<rdata>\(.*\)<\/rdata>.*$/\1-\2/" = replace the whole lines to ID-value pairs
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# -- now there are only lines with ID-value but value might contain spaces (BAD FOR FOREACH LOOP) or special characters (BAD FOR REGEX MATCHING)
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# 9th grep "${value}" = match only a line containg searched value
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# 10th sed "s/^\([0-9]\+\).*$/\1/" = get only ID from the row
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for xml_row in $(echo "${response}" | tr -d '\011\012\015' | sed "s/^.*<data>[ ]*//g" | sed "s/[ ]*<\/data>.*$//g" | sed "s/>[ ]*<\([^\/]\)/><\1/g" | sed "s/<row>//g" | sed "s/[ ]*<\/row>/\n/g" | sed -n "/<name>${sub_domain_regex}<\/name>.*<rdtype>TXT<\/rdtype>/p" | sed "s/^<ID>\([0-9]\+\)<\/ID>.*<rdata>\(.*\)<\/rdata>.*$/\1-\2/" | grep "${value}" | sed "s/^\([0-9]\+\).*$/\1/"); do
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_row_id="${xml_row}"
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_info "WEDOS API: Found DNS row id ${_row_id} for domain ${domain}"
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return 0
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done
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_info "WEDOS API: No TXT row found for domain '${domain}' with name '${sub_domain}' and value '${value}'"
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return 1
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}
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_wapi_delete_row() {
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domain=$1
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row_id=$2
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if [ -z "${domain}" ] || [ -z "${row_id}" ]; then
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_err "Invalid request to delete domain dns row, domain: '${domain}' and row_id: '${row_id}', one of required input were not provided, implementation error!"
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return 1
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fi
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data=" <data>\
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<domain>${domain}</domain>
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<row_id>${row_id}</row_id>
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</data>"
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_debug "Deleting dns row using WAPI ..."
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if ! _wapi_post "dns-row-delete" "${data}"; then
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_err "Error on WAPI request to delete dns row, response: ${response}"
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return 1
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fi
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_debug "DNS row were deleted, response: ${response}"
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_info "WEDOS API: Required dns domain row with row_id '${row_id}' were correctly deleted at domain '${domain}'"
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# Now we have to commit changes
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_wapi_dns_commit "${domain}"
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return "$?"
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}
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