#!/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/$api_path?enable_syno_token=yes") _debug3 response "$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 "$_base_url/webapi/$api_path?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 }