Nikolay Pronchev
4 months ago
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GPG Key ID: 55C72E05BBD63818
1 changed files with 405 additions and 0 deletions
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#!/usr/bin/env sh |
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|
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# acme.sh DNS API for Timeweb Cloud provider (https://timeweb.cloud). |
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# |
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# Author: https://github.com/nikolaypronchev. |
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# |
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# Prerequisites: |
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# Timeweb Cloud API JWT token. Obtain one from the Timeweb Cloud control panel |
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# ("API and Terraform" section: https://timeweb.cloud/my/api-keys). The JWT token |
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# must be provided to this script in one of two ways: |
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# 1. As the "TW_Token" variable, for example: "export TW_Token=eyJhbG...zUxMiIs"; |
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# 2. As a "TW_Token" config entry in acme.sh account config file |
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# (usually located at ~/.acme.sh/account.conf by default). |
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|
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TW_Api="https://api.timeweb.cloud/api/v1" |
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|
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################ Public functions ################ |
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|
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# Adds an ACME DNS-01 challenge DNS TXT record via the Timeweb Cloud API. |
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# |
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# Param1: The ACME DNS-01 challenge FQDN. |
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# Param2: The value of the ACME DNS-01 challenge TXT record. |
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# |
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# Example: dns_timeweb_add "_acme-challenge.sub.domain.com" "D-52Wm...4uYM" |
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dns_timeweb_add() { |
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_debug "$(__green "Timeweb DNS API"): \"dns_timeweb_add\" started." |
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_timeweb_set_acme_fqdn "$1" || return 1 |
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_timeweb_set_acme_txt "$2" || return 1 |
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_timeweb_check_token || return 1 |
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_timeweb_split_acme_fqdn || return 1 |
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_timeweb_dns_txt_add || return 1 |
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|
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_debug "$(__green "Timeweb DNS API"): \"dns_timeweb_add\" finished." |
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} |
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|
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# Removes a DNS TXT record via the Timeweb Cloud API. |
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# |
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# Param1: The ACME DNS-01 challenge FQDN. |
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# Param2: The value of the ACME DNS-01 challenge TXT record. |
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# |
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# Example: dns_timeweb_rm "_acme-challenge.sub.domain.com" "D-52Wm...4uYM" |
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dns_timeweb_rm() { |
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_debug "$(__green "Timeweb DNS API"): \"dns_timeweb_rm\" started." |
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_timeweb_set_acme_fqdn "$1" || return 1 |
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_timeweb_set_acme_txt "$2" || return 1 |
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_timeweb_check_token || return 1 |
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_timeweb_split_acme_fqdn || return 1 |
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_timeweb_get_dns_txt || return 1 |
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_timeweb_dns_txt_remove || return 1 |
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|
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_debug "$(__green "Timeweb DNS API"): \"dns_timeweb_rm\" finished." |
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} |
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|
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################ Private functions ################ |
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|
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# Checks and sets the ACME DNS-01 challenge FQDN. |
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# |
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# Param1: The ACME DNS-01 challenge FQDN. |
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# |
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# Example: _timeweb_set_acme_fqdn "_acme-challenge.sub.domain.com" |
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# |
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# Sets the "Acme_Fqdn" variable (_acme-challenge.sub.domain.com) |
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_timeweb_set_acme_fqdn() { |
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Acme_Fqdn=$1 |
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_debug "Setting ACME DNS-01 challenge FQDN \"$Acme_Fqdn\"." |
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[ -z "$Acme_Fqdn" ] && { |
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_err "ACME DNS-01 challenge FQDN is empty." |
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return 1 |
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} |
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return 0 |
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} |
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|
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# Checks and sets the value of the ACME DNS-01 challenge TXT record. |
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# |
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# Param1: Value of the ACME DNS-01 challenge TXT record. |
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# |
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# Example: _timeweb_set_acme_txt "D-52Wm...4uYM" |
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# |
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# Sets the "Acme_Txt" variable to the provided value (D-52Wm...4uYM) |
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_timeweb_set_acme_txt() { |
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Acme_Txt=$1 |
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_debug "Setting the value of the ACME DNS-01 challenge TXT record to \"$Acme_Txt\"." |
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[ -z "$Acme_Txt" ] && { |
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_err "ACME DNS-01 challenge TXT record value is empty." |
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return 1 |
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} |
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return 0 |
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} |
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|
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# Checks if the Timeweb Cloud API JWT token is present (refer to the script description). |
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# Adds or updates the token in the acme.sh account configuration. |
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_timeweb_check_token() { |
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_debug "Checking for the presence of the Timeweb Cloud API JWT token." |
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TW_Token="${TW_Token:-$(_readaccountconf_mutable TW_Token)}" |
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[ -z "$TW_Token" ] && { |
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_err "Timeweb Cloud API JWT token was not found." |
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return 1 |
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} |
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_saveaccountconf_mutable TW_Token "$TW_Token" |
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} |
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# Divides the ACME DNS-01 challenge FQDN into its main domain and subdomain components. |
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_timeweb_split_acme_fqdn() { |
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_debug "Trying to divide \"$Acme_Fqdn\" into its main domain and subdomain components." |
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TW_Page_Limit=100 |
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TW_Page_Offset=0 |
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while [ -z "$TW_Domains_Total" ] || |
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[ "$((TW_Domains_Total + TW_Page_Limit))" -gt "$((TW_Page_Offset + TW_Page_Limit))" ]; do |
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_timeweb_list_domains "$TW_Page_Limit" "$TW_Page_Offset" || return 1 |
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# Remove the 'subdomains' subarray to prevent confusion with FQDNs. |
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TW_Domains=$( |
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echo "$TW_Domains" | |
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sed 's/"subdomains":\[[^]]*]//g' |
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) |
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[ -z "$TW_Domains" ] && { |
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_err "Failed to parse the list of domains." |
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return 1 |
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} |
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while |
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TW_Domain=$( |
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echo "$TW_Domains" | |
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sed -n 's/.*{[^{]*"fqdn":"\([^"]*\)"[^}]*}.*/\1/p' |
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) |
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[ -n "$TW_Domain" ] && { |
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_timeweb_is_main_domain "$TW_Domain" && return 0 |
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TW_Domains=$( |
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echo "$TW_Domains" | |
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sed 's/{\([^{]*"fqdn":"'"$TW_Domain"'"[^}]*\)}//' |
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) |
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continue |
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} |
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do :; done |
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TW_Page_Offset=$(_math "$TW_Page_Offset" + "$TW_Page_Limit") |
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done |
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_err "Failed to divide \"$Acme_Fqdn\" into its main domain and subdomain components." |
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return 1 |
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} |
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# Searches for a previously added DNS TXT record. |
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# |
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# Sets the "TW_Dns_Txt_Id" variable. |
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_timeweb_get_dns_txt() { |
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_debug "Trying to locate a DNS TXT record with the value \"$Acme_Txt\"." |
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TW_Page_Limit=100 |
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TW_Page_Offset=0 |
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while [ -z "$TW_Dns_Records_Total" ] || |
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[ "$((TW_Dns_Records_Total + TW_Page_Limit))" -gt "$((TW_Page_Offset + TW_Page_Limit))" ]; do |
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_timeweb_list_dns_records "$TW_Page_Limit" "$TW_Page_Offset" || return 1 |
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while |
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Dns_Record=$( |
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echo "$TW_Dns_Records" | |
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sed -n 's/.*{\([^{]*{[^{]*'"$Acme_Txt"'[^}]*}[^}]*\)}.*/\1/p' |
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) |
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[ -n "$Dns_Record" ] && { |
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_timeweb_is_added_txt "$Dns_Record" && return 0 |
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TW_Dns_Records=$( |
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echo "$TW_Dns_Records" | |
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sed 's/{\([^{]*{[^{]*'"$Acme_Txt"'[^}]*}[^}]*\)}//' |
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) |
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continue |
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} |
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do :; done |
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TW_Page_Offset=$(_math "$TW_Page_Offset" + "$TW_Page_Limit") |
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done |
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_err "DNS TXT record was not found." |
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return 1 |
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} |
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# Lists domains via the Timeweb Cloud API. |
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# |
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# Param 1: Limit for listed domains. |
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# Param 2: Offset for domains list. |
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# |
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# Sets the "TW_Domains" variable. |
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# Sets the "TW_Domains_Total" variable. |
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_timeweb_list_domains() { |
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_debug "Listing domains via Timeweb Cloud API. Limit: $1, offset: $2." |
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export _H1="Authorization: Bearer $TW_Token" |
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if ! TW_Domains=$(_get "$TW_Api/domains?limit=$1&offset=$2"); then |
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_err "The request to the Timeweb Cloud API failed." |
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return 1 |
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fi |
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[ -z "$TW_Domains" ] && { |
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_err "Empty response from the Timeweb Cloud API." |
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return 1 |
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} |
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TW_Domains_Total=$( |
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echo "$TW_Domains" | |
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sed 's/.*"meta":{"total":\([0-9]*\)[^0-9].*/\1/' |
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) |
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[ -z "$TW_Domains_Total" ] && { |
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_err "Failed to extract the total count of domains." |
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return 1 |
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} |
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[ "$TW_Domains_Total" -eq "0" ] && { |
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_err "Domains are missing." |
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return 1 |
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} |
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_debug "Total count of domains in the Timeweb Cloud account: $TW_Domains_Total." |
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} |
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# Lists domain DNS records via the Timeweb Cloud API. |
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# |
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# Param 1: Limit for listed DNS records. |
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# Param 2: Offset for DNS records list. |
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# |
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# Sets the "TW_Dns_Records" variable. |
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# Sets the "TW_Dns_Records_Total" variable. |
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_timeweb_list_dns_records() { |
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_debug "Listing domain DNS records via the Timeweb Cloud API. Limit: $1, offset: $2." |
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export _H1="Authorization: Bearer $TW_Token" |
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if ! TW_Dns_Records=$(_get "$TW_Api/domains/$TW_Main_Domain/dns-records?limit=$1&offset=$2"); then |
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_err "The request to the Timeweb Cloud API failed." |
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return 1 |
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fi |
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[ -z "$TW_Dns_Records" ] && { |
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_err "Empty response from the Timeweb Cloud API." |
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return 1 |
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} |
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TW_Dns_Records_Total=$( |
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echo "$TW_Dns_Records" | |
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sed 's/.*"meta":{"total":\([0-9]*\)[^0-9].*/\1/' |
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) |
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[ -z "$TW_Dns_Records_Total" ] && { |
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_err "Failed to extract the total count of DNS records." |
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return 1 |
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} |
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[ "$TW_Dns_Records_Total" -eq "0" ] && { |
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_err "DNS records are missing." |
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return 1 |
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} |
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_debug "Total count of DNS records: $TW_Dns_Records_Total." |
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} |
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# Verifies whether the domain is the primary domain for the ACME DNS-01 challenge FQDN. |
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# The requirement is that the provided domain is the top-level domain |
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# for the ACME DNS-01 challenge FQDN. |
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# |
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# Param 1: Domain object returned by Timeweb Cloud API. |
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# |
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# Sets the "TW_Main_Domain" variable (e.g. "_acme-challenge.s1.domain.co.uk" → "domain.co.uk"). |
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# Sets the "TW_Subdomains" variable (e.g. "_acme-challenge.s1.domain.co.uk" → "_acme-challenge.s1"). |
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_timeweb_is_main_domain() { |
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_debug "Checking if \"$1\" is the main domain of the ACME DNS-01 challenge FQDN." |
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[ -z "$1" ] && { |
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_debug "Failed to extract FQDN. Skipping domain." |
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return 1 |
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} |
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! echo ".$Acme_Fqdn" | grep -qi "\.$1$" && { |
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_debug "Domain does not match the ACME DNS-01 challenge FQDN. Skipping domain." |
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return 1 |
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} |
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TW_Main_Domain=$1 |
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TW_Subdomains=$( |
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echo "$Acme_Fqdn" | |
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sed "s/\.*.\{${#1}\}$//" |
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) |
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_debug "Matched domain. ACME DNS-01 challenge FQDN split as [$TW_Subdomains].[$TW_Main_Domain]." |
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return 0 |
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} |
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# Verifies whether a DNS record was previously added based on the following criteria: |
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# - The value matches the ACME DNS-01 challenge TXT record value; |
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# - The record type is TXT; |
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# - The subdomain matches the ACME DNS-01 challenge FQDN. |
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# |
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# Param 1: DNS record object returned by Timeweb Cloud API. |
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# |
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# Sets the "TW_Dns_Txt_Id" variable. |
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_timeweb_is_added_txt() { |
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_debug "Checking if \"$1\" is a previously added DNS TXT record." |
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echo "$1" | grep -qv '"type":"TXT"' && { |
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_debug "Not a TXT record. Skipping the record." |
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return 1 |
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} |
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if [ -n "$TW_Subdomains" ]; then |
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echo "$1" | grep -qvi "\"subdomain\":\"$TW_Subdomains\"" && { |
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_debug "Subdomains do not match. Skipping the record." |
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return 1 |
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} |
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else |
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echo "$1" | grep -q '"subdomain\":"..*"' && { |
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_debug "Subdomains do not match. Skipping the record." |
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return 1 |
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} |
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fi |
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TW_Dns_Txt_Id=$( |
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echo "$1" | |
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sed 's/.*"id":\([0-9]*\)[^0-9].*/\1/' |
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) |
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[ -z "$TW_Dns_Txt_Id" ] && { |
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_debug "Failed to extract the DNS record ID. Skipping the record." |
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return 1 |
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} |
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_debug "Matching DNS TXT record ID is \"$TW_Dns_Txt_Id\"." |
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return 0 |
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} |
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# Adds a DNS TXT record via the Timeweb Cloud API. |
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_timeweb_dns_txt_add() { |
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_debug "Adding a new DNS TXT record via the Timeweb Cloud API." |
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export _H1="Authorization: Bearer $TW_Token" |
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export _H2="Content-Type: application/json" |
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|
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if ! TW_Response=$( |
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_post "{ |
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\"subdomain\":\"$TW_Subdomains\", |
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\"type\":\"TXT\", |
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\"value\":\"$Acme_Txt\" |
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}" \ |
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"$TW_Api/domains/$TW_Main_Domain/dns-records" |
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); then |
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_err "The request to the Timeweb Cloud API failed." |
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return 1 |
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fi |
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[ -z "$TW_Response" ] && { |
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_err "An unexpected empty response was received from the Timeweb Cloud API." |
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return 1 |
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} |
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TW_Dns_Txt_Id=$( |
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echo "$TW_Response" | |
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sed 's/.*"id":\([0-9]*\)[^0-9].*/\1/' |
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) |
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[ -z "$TW_Dns_Txt_Id" ] && { |
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_err "Failed to extract the DNS TXT Record ID." |
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return 1 |
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} |
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_debug "DNS TXT record has been added. ID: \"$TW_Dns_Txt_Id\"." |
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} |
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# Removes a DNS record via the Timeweb Cloud API. |
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_timeweb_dns_txt_remove() { |
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_debug "Removing DNS record via the Timeweb Cloud API." |
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|
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export _H1="Authorization: Bearer $TW_Token" |
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if ! TW_Response=$( |
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_post \ |
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"" \ |
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"$TW_Api/domains/$TW_Main_Domain/dns-records/$TW_Dns_Txt_Id" \ |
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"" \ |
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"DELETE" |
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); then |
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_err "The request to the Timeweb Cloud API failed." |
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return 1 |
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fi |
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[ -n "$TW_Response" ] && { |
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_err "Received an unexpected response body from the Timeweb Cloud API." |
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return 1 |
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} |
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|
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_debug "DNS TXT record with ID \"$TW_Dns_Txt_Id\" has been removed." |
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} |
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