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