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acme.sh/deploy/synology_dsm.sh

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#!/bin/bash
################################################################################
# ACME.sh 3rd party deploy plugin for Synology DSM
################################################################################
# Authors: Brian Hartvigsen (creator), https://github.com/tresni
# Martin Arndt (contributor), https://troublezone.net/
# Updated: 2023-07-03
# Issues: https://github.com/acmesh-official/acme.sh/issues/2727
################################################################################
# Usage (shown values are the examples):
# 1. Set required environment variables:
# - use automatically created temp admin user to authenticate
# export SYNO_USE_TEMP_ADMIN=1
# - or provide your own admin user credential to authenticate
# 1. export SYNO_USERNAME="adminUser"
# 2. export SYNO_PASSWORD="adminPassword"
# 2. Set optional environment variables
# - common optional variables
# - export SYNO_SCHEME="http" - defaults to "http"
# - export SYNO_HOSTNAME="localhost" - defaults to "localhost"
# - export SYNO_PORT="5000" - defaults to "5000"
# - export SYNO_CREATE=1 - to allow creating the cert if it doesn't exist
# - export SYNO_CERTIFICATE="" - to replace a specific cert by its
# description
# - temp admin optional variables
# - export SYNO_LOCAL_HOSTNAME=1 - if set to 1, force to treat hostname is
# targeting current local machine (since
# this method only locally supported)
# - exsiting admin 2FA-OTP optional variables
# - export SYNO_OTP_CODE="XXXXXX" - if set, script won't require to
# interactive input the OTP code
# - export SYNO_DEVICE_NAME="CertRenewal" - if set, script won't require to
# interactive input the device name
# - export SYNO_DEVICE_ID="" - (deprecated, auth with OTP code instead)
# required for omitting 2FA-OTP
# 3. Run command:
# acme.sh --deploy --deploy-hook synology_dsm -d example.com
################################################################################
# Dependencies:
# - curl
# - synouser & synogroup (When available and SYNO_USE_TEMP_ADMIN is set)
################################################################################
# Return value:
# 0 means success, otherwise error.
################################################################################
########## Public functions ####################################################
#domain keyfile certfile cafile fullchain
synology_dsm_deploy() {
_cdomain="$1"
_ckey="$2"
_ccert="$3"
_cca="$4"
_debug _cdomain "$_cdomain"
# Get username and password, but don't save until we authenticated successfully
_migratedeployconf SYNO_Username SYNO_USERNAME
_migratedeployconf SYNO_Password SYNO_PASSWORD
_migratedeployconf SYNO_Device_ID SYNO_DEVICE_ID
_migratedeployconf SYNO_Device_Name SYNO_DEVICE_NAME
_getdeployconf SYNO_USERNAME
_getdeployconf SYNO_PASSWORD
_getdeployconf SYNO_DEVICE_ID
_getdeployconf SYNO_DEVICE_NAME
# Prepare to use temp admin if SYNO_USE_TEMP_ADMIN is set
_debug2 SYNO_USE_TEMP_ADMIN "$SYNO_USE_TEMP_ADMIN"
_getdeployconf SYNO_USE_TEMP_ADMIN
_check2cleardeployconfexp SYNO_USE_TEMP_ADMIN
_debug2 SYNO_USE_TEMP_ADMIN "$SYNO_USE_TEMP_ADMIN"
if [ -n "$SYNO_USE_TEMP_ADMIN" ]; then
if ! _exists synouser || ! _exists synogroup; then
_err "Tools are missing for creating temp admin user, please set SYNO_USERNAME and SYNO_PASSWORD instead."
return 1
fi
[ -n "$SYNO_USERNAME" ] || _savedeployconf SYNO_USERNAME ""
[ -n "$SYNO_PASSWORD" ] || _savedeployconf SYNO_PASSWORD ""
_debug "Setting temp admin user credential..."
SYNO_USERNAME=sc-acmesh-tmp
SYNO_PASSWORD=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 16)
# Set 2FA-OTP settings to empty consider they won't be needed.
SYNO_DEVICE_ID=
SYNO_DEVICE_NAME=
SYNO_OTP_CODE=
else
_debug2 SYNO_USERNAME "$SYNO_USERNAME"
_secure_debug2 SYNO_PASSWORD "$SYNO_PASSWORD"
_debug2 SYNO_DEVICE_NAME "$SYNO_DEVICE_NAME"
_secure_debug2 SYNO_DEVICE_ID "$SYNO_DEVICE_ID"
fi
if [ -z "$SYNO_USERNAME" ] || [ -z "$SYNO_PASSWORD" ]; then
_err "You must set either SYNO_USE_TEMP_ADMIN, or set both SYNO_USERNAME and SYNO_PASSWORD."
return 1
fi
# Optional scheme, hostname and port for Synology DSM
_migratedeployconf SYNO_Scheme SYNO_SCHEME
_migratedeployconf SYNO_Hostname SYNO_HOSTNAME
_migratedeployconf SYNO_Port SYNO_PORT
_getdeployconf SYNO_SCHEME
_getdeployconf SYNO_HOSTNAME
_getdeployconf SYNO_PORT
# Default values for scheme, hostname and port
# Defaulting to localhost and http, because it's localhost…
[ -n "$SYNO_SCHEME" ] || SYNO_SCHEME="http"
[ -n "$SYNO_HOSTNAME" ] || SYNO_HOSTNAME="localhost"
[ -n "$SYNO_PORT" ] || SYNO_PORT="5000"
_savedeployconf SYNO_SCHEME "$SYNO_SCHEME"
_savedeployconf SYNO_HOSTNAME "$SYNO_HOSTNAME"
_savedeployconf SYNO_PORT "$SYNO_PORT"
_debug2 SYNO_SCHEME "$SYNO_SCHEME"
_debug2 SYNO_HOSTNAME "$SYNO_HOSTNAME"
_debug2 SYNO_PORT "$SYNO_PORT"
# Get the certificate description, but don't save it until we verify it's real
_migratedeployconf SYNO_Certificate SYNO_CERTIFICATE "base64"
_getdeployconf SYNO_CERTIFICATE
_check2cleardeployconfexp SYNO_CERTIFICATE
_debug SYNO_CERTIFICATE "${SYNO_CERTIFICATE:-}"
# shellcheck disable=SC1003 # We are not trying to escape a single quote
if printf "%s" "$SYNO_CERTIFICATE" | grep '\\'; then
_err "Do not use a backslash (\) in your certificate description"
return 1
fi
_debug "Getting API version..."
_base_url="$SYNO_SCHEME://$SYNO_HOSTNAME:$SYNO_PORT"
_debug _base_url "$_base_url"
response=$(_get "$_base_url/webapi/query.cgi?api=SYNO.API.Info&version=1&method=query&query=SYNO.API.Auth")
api_path=$(echo "$response" | grep "SYNO.API.Auth" | sed -n 's/.*"path" *: *"\([^"]*\)".*/\1/p')
api_version=$(echo "$response" | grep "SYNO.API.Auth" | sed -n 's/.*"maxVersion" *: *\([0-9]*\).*/\1/p')
_debug3 response "$response"
_debug3 api_path "$api_path"
_debug3 api_version "$api_version"
# Login, get the session ID and SynoToken from JSON
_info "Logging into $SYNO_HOSTNAME:$SYNO_PORT..."
encoded_username="$(printf "%s" "$SYNO_USERNAME" | _url_encode)"
encoded_password="$(printf "%s" "$SYNO_PASSWORD" | _url_encode)"
# ## START ## - DEPRECATED, for backward compatibility
_getdeployconf SYNO_TOTP_SECRET
if [ -n "$SYNO_TOTP_SECRET" ]; then
_info "WARNING: Usage of SYNO_TOTP_SECRET is deprecated!"
_info " See synology_dsm.sh script or ACME.sh Wiki page for details:"
_info " https://github.com/acmesh-official/acme.sh/wiki/Synology-NAS-Guide"
if ! _exists oathtool; then
_err "oathtool could not be found, install oathtool to use SYNO_TOTP_SECRET"
return 1
fi
DEPRECATED_otp_code="$(oathtool --base32 --totp "$SYNO_TOTP_SECRET" 2>/dev/null)"
if [ -z "$SYNO_DEVICE_ID" ]; then
_getdeployconf SYNO_DID
[ -n "$SYNO_DID" ] || SYNO_DEVICE_ID="$SYNO_DID"
fi
if [ -n "$SYNO_DEVICE_ID" ]; then
_H1="Cookie: did=$SYNO_DEVICE_ID"
export _H1
_debug3 H1 "${_H1}"
fi
response=$(_post "method=login&account=$encoded_username&passwd=$encoded_password&api=SYNO.API.Auth&version=$api_version&enable_syno_token=yes&otp_code=$DEPRECATED_otp_code&device_name=certrenewal&device_id=$SYNO_DEVICE_ID" "$_base_url/webapi/auth.cgi?enable_syno_token=yes")
_debug3 response "$response"
# ## END ## - DEPRECATED, for backward compatibility
# If SYNO_DEVICE_ID or SYNO_OTP_CODE is set, we treat current account enabled 2FA-OTP.
# Notice that if SYNO_USE_TEMP_ADMIN=1, both variables will be unset
else
if [ -n "$SYNO_DEVICE_ID" ] || [ -n "$SYNO_OTP_CODE" ]; then
response='{"error":{"code":403}}'
# Assume the current account disabled 2FA-OTP, try to log in right away.
else
if [ -n "$SYNO_USE_TEMP_ADMIN" ]; then
_getdeployconf SYNO_LOCAL_HOSTNAME
_debug SYNO_LOCAL_HOSTNAME "${SYNO_LOCAL_HOSTNAME:-}"
if [ "$SYNO_LOCAL_HOSTNAME" != "1" ] && [ "$SYNO_LOCAL_HOSTNAME" == "$SYNO_HOSTNAME" ]; then
if [ "$SYNO_HOSTNAME" != "localhost" ] && [ "$SYNO_HOSTNAME" != "127.0.0.1" ]; then
_err "SYNO_USE_TEMP_ADMIN=1 Only support locally deployment, if you are sure that hostname $SYNO_HOSTNAME is targeting to your **current local machine**, execute 'export SYNO_LOCAL_HOSTNAME=1' then rerun."
return 1
fi
fi
_debug "Creating temp admin user in Synology DSM..."
if synogroup --help | grep -q '\-\-memberadd '; then
_temp_admin_create "$SYNO_USERNAME" "$SYNO_PASSWORD"
synogroup --memberadd administrators "$SYNO_USERNAME" >/dev/null
elif synogroup --help | grep -q '\-\-member '; then
# For supporting DSM 6.x which only has `--member` parameter.
cur_admins=$(synogroup --get administrators | awk -F '[][]' '/Group Members/,0{if(NF>1)printf "%s ", $2}')
if [ -n "$cur_admins" ]; then
_temp_admin_create "$SYNO_USERNAME" "$SYNO_PASSWORD"
_secure_debug3 admin_users "$cur_admins$SYNO_USERNAME"
# shellcheck disable=SC2086
synogroup --member administrators $cur_admins $SYNO_USERNAME >/dev/null
else
_err "Tool synogroup may be broken, please set SYNO_USERNAME and SYNO_PASSWORD instead."
return 1
fi
else
_err "Unsupported synogroup tool detected, please set SYNO_USERNAME and SYNO_PASSWORD instead."
return 1
fi
# havig a workaround to temporary disable enforce 2FA-OTP
otp_enforce_option=$(synogetkeyvalue /etc/synoinfo.conf otp_enforce_option)
if [ -n "$otp_enforce_option" ] && [ "${otp_enforce_option:-"none"}" != "none" ]; then
synosetkeyvalue /etc/synoinfo.conf otp_enforce_option none
_info "Temporary disabled enforce 2FA-OTP to complete authentication."
_info "previous_otp_enforce_option" "$otp_enforce_option"
else
otp_enforce_option=""
fi
fi
response=$(_get "$_base_url/webapi/entry.cgi?api=SYNO.API.Auth&version=$api_version&method=login&format=sid&account=$encoded_username&passwd=$encoded_password&enable_syno_token=yes")
if [ -n "$SYNO_USE_TEMP_ADMIN" ] && [ -n "$otp_enforce_option" ]; then
synosetkeyvalue /etc/synoinfo.conf otp_enforce_option "$otp_enforce_option"
_info "Restored previous enforce 2FA-OTP option."
fi
_debug3 response "$response"
fi
fi
error_code=$(echo "$response" | grep '"error":' | grep -o '"code":[0-9]*' | grep -o '[0-9]*')
_debug2 error_code "$error_code"
# Account has 2FA-OTP enabled, since error 403 reported.
# https://global.download.synology.com/download/Document/Software/DeveloperGuide/Firmware/DSM/All/enu/Synology_DiskStation_Administration_CLI_Guide.pdf
if [ "$error_code" == "403" ]; then
if [ -z "$SYNO_DEVICE_NAME" ]; then
printf "Enter device name or leave empty for default (CertRenewal): "
read -r SYNO_DEVICE_NAME
[ -n "$SYNO_DEVICE_NAME" ] || SYNO_DEVICE_NAME="CertRenewal"
fi
if [ -n "$SYNO_DEVICE_ID" ]; then
# Omit OTP code with SYNO_DEVICE_ID.
response=$(_get "$_base_url/webapi/$api_path?api=SYNO.API.Auth&version=$api_version&method=login&format=sid&account=$encoded_username&passwd=$encoded_password&enable_syno_token=yes&device_name=$SYNO_DEVICE_NAME&device_id=$SYNO_DEVICE_ID")
_secure_debug3 response "$response"
else
# Require the OTP code if still unset.
if [ -z "$SYNO_OTP_CODE" ]; then
printf "Enter OTP code for user '%s': " "$SYNO_USERNAME"
read -r SYNO_OTP_CODE
fi
_secure_debug SYNO_OTP_CODE "${SYNO_OTP_CODE:-}"
if [ -z "$SYNO_OTP_CODE" ]; then
response='{"error":{"code":404}}'
else
response=$(_get "$_base_url/webapi/$api_path?api=SYNO.API.Auth&version=$api_version&method=login&format=sid&account=$encoded_username&passwd=$encoded_password&enable_syno_token=yes&enable_device_token=yes&device_name=$SYNO_DEVICE_NAME&otp_code=$SYNO_OTP_CODE")
_secure_debug3 response "$response"
id_property='device_id'
[ "${api_version}" -gt '6' ] || id_property='did'
SYNO_DEVICE_ID=$(echo "$response" | grep "$id_property" | sed -n 's/.*"'$id_property'" *: *"\([^"]*\).*/\1/p')
_secure_debug2 SYNO_DEVICE_ID "$SYNO_DEVICE_ID"
fi
fi
error_code=$(echo "$response" | grep '"error":' | grep -o '"code":[0-9]*' | grep -o '[0-9]*')
_debug2 error_code "$error_code"
fi
if [ -n "$error_code" ]; then
if [ "$error_code" == "403" ] && [ -n "$SYNO_DEVICE_ID" ]; then
_cleardeployconf SYNO_DEVICE_ID
_err "Failed to authenticate with SYNO_DEVICE_ID (may expired or invalid), please try again in a new terminal window."
elif [ "$error_code" == "404" ]; then
_err "Failed to authenticate with provided 2FA-OTP code, please try again in a new terminal window."
elif [ "$error_code" == "406" ]; then
if [ -n "$SYNO_USE_TEMP_ADMIN" ]; then
_err "SYNO_USE_TEMP_ADMIN=1 is not supported if enforce auth with 2FA-OTP is enabled."
else
_err "Enforce auth with 2FA-OTP enabled, please configure the user to enable 2FA-OTP to continue."
fi
elif [ "$error_code" == "400" ] || [ "$error_code" == "401" ] || [ "$error_code" == "408" ] || [ "$error_code" == "409" ] || [ "$error_code" == "410" ]; then
_err "Failed to authenticate with a non-existent or disabled account, or the account password is incorrect or has expired."
else
_err "Failed to authenticate with error: $error_code."
fi
_temp_admin_cleanup "$SYNO_USE_TEMP_ADMIN" "$SYNO_USERNAME"
return 1
fi
sid=$(echo "$response" | grep "sid" | sed -n 's/.*"sid" *: *"\([^"]*\).*/\1/p')
token=$(echo "$response" | grep "synotoken" | sed -n 's/.*"synotoken" *: *"\([^"]*\).*/\1/p')
_debug "Session ID" "$sid"
_debug SynoToken "$token"
if [ -z "$sid" ] || [ -z "$token" ]; then
# Still can't get necessary info even got no errors, may Synology have API updated?
_err "Unable to authenticate to $_base_url, you may report the full log to the community."
_temp_admin_cleanup "$SYNO_USE_TEMP_ADMIN" "$SYNO_USERNAME"
return 1
fi
_H1="X-SYNO-TOKEN: $token"
export _H1
_debug2 H1 "${_H1}"
# Now that we know the username and password are good, save them if not in temp admin mode.
if [ -n "$SYNO_USE_TEMP_ADMIN" ]; then
_cleardeployconf SYNO_USERNAME
_cleardeployconf SYNO_PASSWORD
_cleardeployconf SYNO_DEVICE_ID
_cleardeployconf SYNO_DEVICE_NAME
_savedeployconf SYNO_USE_TEMP_ADMIN "$SYNO_USE_TEMP_ADMIN"
_savedeployconf SYNO_LOCAL_HOSTNAME "$SYNO_HOSTNAME"
else
_savedeployconf SYNO_USERNAME "$SYNO_USERNAME"
_savedeployconf SYNO_PASSWORD "$SYNO_PASSWORD"
_savedeployconf SYNO_DEVICE_ID "$SYNO_DEVICE_ID"
_savedeployconf SYNO_DEVICE_NAME "$SYNO_DEVICE_NAME"
fi
_info "Getting certificates in Synology DSM..."
response=$(_post "api=SYNO.Core.Certificate.CRT&method=list&version=1&_sid=$sid" "$_base_url/webapi/entry.cgi")
_debug3 response "$response"
escaped_certificate="$(printf "%s" "$SYNO_CERTIFICATE" | sed 's/\([].*^$[]\)/\\\1/g;s/"/\\\\"/g')"
_debug escaped_certificate "$escaped_certificate"
id=$(echo "$response" | sed -n "s/.*\"desc\":\"$escaped_certificate\",\"id\":\"\([^\"]*\).*/\1/p")
_debug2 id "$id"
error_code=$(echo "$response" | grep '"error":' | grep -o '"code":[0-9]*' | grep -o '[0-9]*')
_debug2 error_code "$error_code"
if [ -n "$error_code" ]; then
if [ "$error_code" -eq 105 ]; then
_err "Current user is not administrator and does not have sufficient permission for deploying."
else
_err "Failed to fetch certificate info with error: $error_code, please try again or contact Synology to learn more."
fi
_temp_admin_cleanup "$SYNO_USE_TEMP_ADMIN" "$SYNO_USERNAME"
return 1
fi
_migratedeployconf SYNO_Create SYNO_CREATE
_getdeployconf SYNO_CREATE
_debug2 SYNO_CREATE "$SYNO_CREATE"
if [ -z "$id" ] && [ -z "$SYNO_CREATE" ]; then
_err "Unable to find certificate: $SYNO_CERTIFICATE and $SYNO_CREATE is not set."
_temp_admin_cleanup "$SYNO_USE_TEMP_ADMIN" "$SYNO_USERNAME"
return 1
fi
# We've verified this certificate description is a thing, so save it
_savedeployconf SYNO_CERTIFICATE "$SYNO_CERTIFICATE" "base64"
_info "Generating form POST request..."
nl="\0015\0012"
delim="--------------------------$(_utc_date | tr -d -- '-: ')"
content="--$delim${nl}Content-Disposition: form-data; name=\"key\"; filename=\"$(basename "$_ckey")\"${nl}Content-Type: application/octet-stream${nl}${nl}$(cat "$_ckey")\0012"
content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"cert\"; filename=\"$(basename "$_ccert")\"${nl}Content-Type: application/octet-stream${nl}${nl}$(cat "$_ccert")\0012"
content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"inter_cert\"; filename=\"$(basename "$_cca")\"${nl}Content-Type: application/octet-stream${nl}${nl}$(cat "$_cca")\0012"
content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"id\"${nl}${nl}$id"
content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"desc\"${nl}${nl}${SYNO_CERTIFICATE}"
if echo "$response" | sed -n "s/.*\"desc\":\"$escaped_certificate\",\([^{]*\).*/\1/p" | grep -- 'is_default":true' >/dev/null; then
_debug2 default "This is the default certificate"
content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"as_default\"${nl}${nl}true"
else
_debug2 default "This is NOT the default certificate"
fi
content="$content${nl}--$delim--${nl}"
content="$(printf "%b_" "$content")"
content="${content%_}" # protect trailing \n
_info "Upload certificate to the Synology DSM."
response=$(_post "$content" "$_base_url/webapi/entry.cgi?api=SYNO.Core.Certificate&method=import&version=1&SynoToken=$token&_sid=$sid" "" "POST" "multipart/form-data; boundary=${delim}")
_debug3 response "$response"
if ! echo "$response" | grep '"error":' >/dev/null; then
if echo "$response" | grep '"restart_httpd":true' >/dev/null; then
_info "Restart HTTP services succeeded."
else
_info "Restart HTTP services failed."
fi
_temp_admin_cleanup "$SYNO_USE_TEMP_ADMIN" "$SYNO_USERNAME"
_logout
return 0
else
_temp_admin_cleanup "$SYNO_USE_TEMP_ADMIN" "$SYNO_USERNAME"
_err "Unable to update certificate, got error response: $response."
_logout
return 1
fi
}
#################### Private functions below ##################################
_logout() {
# Logout CERT user only to not occupy a permanent session, e.g. in DSM's "Connected Users" widget (based on previous variables)
response=$(_get "$_base_url/webapi/$api_path?api=SYNO.API.Auth&version=$api_version&method=logout&_sid=$sid")
_debug3 response "$response"
}
_temp_admin_create() {
_username="$1"
_password="$2"
synouser --del "$_username" >/dev/null 2>/dev/null
synouser --add "$_username" "$_password" "" 0 "scruelt@hotmail.com" 0 >/dev/null
}
_temp_admin_cleanup() {
_flag=$1
_username=$2
if [ -n "${_flag}" ]; then
_debug "Cleanuping temp admin info..."
synouser --del "$_username" >/dev/null
fi
}
#_cleardeployconf key
_cleardeployconf() {
_cleardomainconf "SAVED_$1"
}
# key
_check2cleardeployconfexp() {
_key="$1"
_clear_key="CLEAR_$_key"
# Clear saved settings if explicitly requested
if [ -n "$(eval echo \$"$_clear_key")" ]; then
_debug2 "$_key: value cleared from config, exported value will be ignored."
_cleardeployconf "$_key"
eval "$_key"=
export "$_key"=
eval SAVED_"$_key"=
export SAVED_"$_key"=
fi
}