acme.sh/dnsapi/dns_yc.sh
Sergey Ponomarev 6b7b5caf54 DNS provider API: structured description
Instead of using comments declare info in a special variable.
Then the variable can be used to print the DNS API provider usage.
The usage can be parsed on UI and show all needed inputs for options.

The info is stored in plain string that it's both human-readable and easy to parse:

    dns_example_info='API name
     An extended description.
     Multiline.
    Domains: list of alternative domains to find
    Site: the dns provider website e.g. example.com
    Docs: Link to ACME.sh wiki for the provider
    Options:
     VARIABLE1 Title for the option1.
     VARIABLE2 Title for the option2. Default "default value".
     VARIABLE3 Title for the option3. Description to show on UI. Optional.
    Issues: Link to a support ticket on https://github.com/acmesh-official/acme.sh
    Author: First Lastname <authoremail@example.com>, Another Author <https://github.com/example>;
    '

Here:
VARIABLE1 will be required.
VARIABLE2 will be required too but will be populated with a "default value".
VARIABLE3 is optional and can be empty.

A DNS provider may have alternative options like CloudFlare may use API KEY or API Token.
You can use a second section OptionsAlt: section.

Some providers may have alternative names or domains e.g. Aliyun and AlibabaCloud.
Add them to Domains: section.

Signed-off-by: Sergey Ponomarev <stokito@gmail.com>
2024-05-18 12:06:41 +03:00

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#!/usr/bin/env sh
# shellcheck disable=SC2034
dns_yc_info='Yandex Cloud DNS
Site: Cloud.Yandex.com
Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi2#dns_yc
Options:
YC_Zone_ID DNS Zone ID
YC_Folder_ID YC Folder ID
YC_SA_ID Service Account ID
YC_SA_Key_ID Service Account IAM Key ID
YC_SA_Key_File_Path Private key file path. Optional.
YC_SA_Key_File_PEM_b64 Base64 content of private key file. Use instead of Path to private key file. Optional.
Issues: github.com/acmesh-official/acme.sh/issues/4210
'
YC_Api="https://dns.api.cloud.yandex.net/dns/v1"
######## Public functions #####################
#Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_yc_add() {
fulldomain="$(echo "$1". | _lower_case)" # Add dot at end of domain name
txtvalue=$2
YC_SA_Key_File_PEM_b64="${YC_SA_Key_File_PEM_b64:-$(_readaccountconf_mutable YC_SA_Key_File_PEM_b64)}"
YC_SA_Key_File_Path="${YC_SA_Key_File_Path:-$(_readaccountconf_mutable YC_SA_Key_File_Path)}"
if [ "$YC_SA_Key_File_PEM_b64" ]; then
echo "$YC_SA_Key_File_PEM_b64" | _dbase64 >private.key
YC_SA_Key_File="private.key"
_savedomainconf YC_SA_Key_File_PEM_b64 "$YC_SA_Key_File_PEM_b64"
else
YC_SA_Key_File="$YC_SA_Key_File_Path"
_savedomainconf YC_SA_Key_File_Path "$YC_SA_Key_File_Path"
fi
YC_Zone_ID="${YC_Zone_ID:-$(_readaccountconf_mutable YC_Zone_ID)}"
YC_Folder_ID="${YC_Folder_ID:-$(_readaccountconf_mutable YC_Folder_ID)}"
YC_SA_ID="${YC_SA_ID:-$(_readaccountconf_mutable YC_SA_ID)}"
YC_SA_Key_ID="${YC_SA_Key_ID:-$(_readaccountconf_mutable YC_SA_Key_ID)}"
if [ "$YC_SA_ID" ] && [ "$YC_SA_Key_ID" ] && [ "$YC_SA_Key_File" ]; then
if [ -f "$YC_SA_Key_File" ]; then
if _isRSA "$YC_SA_Key_File" >/dev/null 2>&1; then
if [ "$YC_Zone_ID" ]; then
_savedomainconf YC_Zone_ID "$YC_Zone_ID"
_savedomainconf YC_SA_ID "$YC_SA_ID"
_savedomainconf YC_SA_Key_ID "$YC_SA_Key_ID"
elif [ "$YC_Folder_ID" ]; then
_savedomainconf YC_Folder_ID "$YC_Folder_ID"
_saveaccountconf_mutable YC_SA_ID "$YC_SA_ID"
_saveaccountconf_mutable YC_SA_Key_ID "$YC_SA_Key_ID"
_clearaccountconf_mutable YC_Zone_ID
_clearaccountconf YC_Zone_ID
else
_err "You didn't specify a Yandex Cloud Zone ID or Folder ID yet."
return 1
fi
else
_err "YC_SA_Key_File not a RSA file(_isRSA function return false)."
return 1
fi
else
_err "YC_SA_Key_File not found in path $YC_SA_Key_File."
return 1
fi
else
_clearaccountconf YC_Zone_ID
_clearaccountconf YC_Folder_ID
_clearaccountconf YC_SA_ID
_clearaccountconf YC_SA_Key_ID
_clearaccountconf YC_SA_Key_File_PEM_b64
_clearaccountconf YC_SA_Key_File_Path
_err "You didn't specify a YC_SA_ID or YC_SA_Key_ID or YC_SA_Key_File."
return 1
fi
_debug "First detect the root zone"
if ! _get_root "$fulldomain"; then
_err "invalid domain"
return 1
fi
_debug _domain_id "$_domain_id"
_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"
_debug "Getting txt records"
if ! _yc_rest GET "zones/${_domain_id}:getRecordSet?type=TXT&name=$_sub_domain"; then
_err "Error: $response"
return 1
fi
_info "Adding record"
if _yc_rest POST "zones/$_domain_id:upsertRecordSets" "{\"merges\": [ { \"name\":\"$_sub_domain\",\"type\":\"TXT\",\"ttl\":\"120\",\"data\":[\"$txtvalue\"]}]}"; then
if _contains "$response" "\"done\": true"; then
_info "Added, OK"
return 0
else
_err "Add txt record error."
return 1
fi
fi
_err "Add txt record error."
return 1
}
#fulldomain txtvalue
dns_yc_rm() {
fulldomain="$(echo "$1". | _lower_case)" # Add dot at end of domain name
txtvalue=$2
YC_Zone_ID="${YC_Zone_ID:-$(_readaccountconf_mutable YC_Zone_ID)}"
YC_Folder_ID="${YC_Folder_ID:-$(_readaccountconf_mutable YC_Folder_ID)}"
YC_SA_ID="${YC_SA_ID:-$(_readaccountconf_mutable YC_SA_ID)}"
YC_SA_Key_ID="${YC_SA_Key_ID:-$(_readaccountconf_mutable YC_SA_Key_ID)}"
_debug "First detect the root zone"
if ! _get_root "$fulldomain"; then
_err "invalid domain"
return 1
fi
_debug _domain_id "$_domain_id"
_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"
_debug "Getting txt records"
if _yc_rest GET "zones/${_domain_id}:getRecordSet?type=TXT&name=$_sub_domain"; then
exists_txtvalue=$(echo "$response" | _normalizeJson | _egrep_o "\"data\".*\][^,]*" | _egrep_o "[^:]*$")
_debug exists_txtvalue "$exists_txtvalue"
else
_err "Error: $response"
return 1
fi
if _yc_rest POST "zones/$_domain_id:updateRecordSets" "{\"deletions\": [ { \"name\":\"$_sub_domain\",\"type\":\"TXT\",\"ttl\":\"120\",\"data\":$exists_txtvalue}]}"; then
if _contains "$response" "\"done\": true"; then
_info "Delete, OK"
return 0
else
_err "Delete record error."
return 1
fi
fi
_err "Delete record error."
return 1
}
#################### Private functions below ##################################
#_acme-challenge.www.domain.com
#returns
# _sub_domain=_acme-challenge.www
# _domain=domain.com
# _domain_id=sdjkglgdfewsdfg
_get_root() {
domain=$1
i=1
p=1
# Use Zone ID directly if provided
if [ "$YC_Zone_ID" ]; then
if ! _yc_rest GET "zones/$YC_Zone_ID"; then
return 1
else
if echo "$response" | tr -d " " | _egrep_o "\"id\":\"$YC_Zone_ID\"" >/dev/null; then
_domain=$(echo "$response" | _egrep_o "\"zone\": *\"[^\"]*\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
if [ "$_domain" ]; then
_cutlength=$((${#domain} - ${#_domain}))
_sub_domain=$(printf "%s" "$domain" | cut -c "1-$_cutlength")
_domain_id=$YC_Zone_ID
return 0
else
return 1
fi
else
return 1
fi
fi
fi
while true; do
h=$(printf "%s" "$domain" | cut -d . -f $i-100)
_debug h "$h"
if [ -z "$h" ]; then
#not valid
return 1
fi
if [ "$YC_Folder_ID" ]; then
if ! _yc_rest GET "zones?folderId=$YC_Folder_ID"; then
return 1
fi
else
echo "You didn't specify a Yandex Cloud Folder ID."
return 1
fi
if _contains "$response" "\"zone\": \"$h\""; then
_domain_id=$(echo "$response" | _normalizeJson | _egrep_o "[^{]*\"zone\":\"$h\"[^}]*" | _egrep_o "\"id\"[^,]*" | _egrep_o "[^:]*$" | tr -d '"')
_debug _domain_id "$_domain_id"
if [ "$_domain_id" ]; then
_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
_domain=$h
return 0
fi
return 1
fi
p=$i
i=$(_math "$i" + 1)
done
return 1
}
_yc_rest() {
m=$1
ep="$2"
data="$3"
_debug "$ep"
if [ ! "$YC_Token" ]; then
_debug "Login"
_yc_login
else
_debug "Token already exists. Skip Login."
fi
token_trimmed=$(echo "$YC_Token" | tr -d '"')
export _H1="Content-Type: application/json"
export _H2="Authorization: Bearer $token_trimmed"
if [ "$m" != "GET" ]; then
_debug data "$data"
response="$(_post "$data" "$YC_Api/$ep" "" "$m")"
else
response="$(_get "$YC_Api/$ep")"
fi
if [ "$?" != "0" ]; then
_err "error $ep"
return 1
fi
_debug2 response "$response"
return 0
}
_yc_login() {
header=$(echo "{\"typ\":\"JWT\",\"alg\":\"PS256\",\"kid\":\"$YC_SA_Key_ID\"}" | _normalizeJson | _base64 | _url_replace)
_debug header "$header"
_current_timestamp=$(_time)
_expire_timestamp=$(_math "$_current_timestamp" + 1200) # 20 minutes
payload=$(echo "{\"iss\":\"$YC_SA_ID\",\"aud\":\"https://iam.api.cloud.yandex.net/iam/v1/tokens\",\"iat\":$_current_timestamp,\"exp\":$_expire_timestamp}" | _normalizeJson | _base64 | _url_replace)
_debug payload "$payload"
#signature=$(printf "%s.%s" "$header" "$payload" | ${ACME_OPENSSL_BIN:-openssl} dgst -sign "$YC_SA_Key_File -sha256 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:-1" | _base64 | _url_replace )
_signature=$(printf "%s.%s" "$header" "$payload" | _sign "$YC_SA_Key_File" "sha256 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:-1" | _url_replace)
_debug2 _signature "$_signature"
rm -rf "$YC_SA_Key_File"
_jwt=$(printf "{\"jwt\": \"%s.%s.%s\"}" "$header" "$payload" "$_signature")
_debug2 _jwt "$_jwt"
export _H1="Content-Type: application/json"
_iam_response="$(_post "$_jwt" "https://iam.api.cloud.yandex.net/iam/v1/tokens" "" "POST")"
_debug3 _iam_response "$(echo "$_iam_response" | _normalizeJson)"
YC_Token="$(echo "$_iam_response" | _normalizeJson | _egrep_o "\"iamToken\"[^,]*" | _egrep_o "[^:]*$" | tr -d '"')"
_debug3 YC_Token
return 0
}