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275 lines
13 KiB
275 lines
13 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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# - Create temp admin user automatically:
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# export SYNO_USE_TEMP_ADMIN=1
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# - Or provide your own admin user credential:
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# 1. export SYNO_Username="adminUser"
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# 2. export SYNO_Password="adminPassword"
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# Optional exports (shown values are the defaults):
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# - export SYNO_Certificate="" - to replace a specific certificate via description
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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 certificate if it doesn't exist
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# - export SYNO_Device_Name="CertRenewal" - required if 2FA-OTP enabled
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# - export SYNO_Device_ID="" - required for skipping 2FA-OTP
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# 3. acme.sh --deploy --deploy-hook synology_dsm -d example.com
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################################################################################
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# Dependencies:
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# - jq & curl
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# - synouser & synogroup (When available and SYNO_USE_TEMP_ADMIN 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 & password, but don't save until we authenticated successfully
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_getdeployconf SYNO_USE_TEMP_ADMIN
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_getdeployconf SYNO_Username
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_getdeployconf SYNO_Password
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_getdeployconf SYNO_Create
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_getdeployconf SYNO_DID
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_getdeployconf SYNO_TOTP_SECRET
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_getdeployconf SYNO_Device_Name
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_getdeployconf SYNO_Device_ID
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# Prepare temp admin user info if SYNO_USE_TEMP_ADMIN is set
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if [ -n "${SYNO_USE_TEMP_ADMIN:-}" ]; then
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if ! _exists synouser; then
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if ! _exists synogroup; then
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_err "Tools are missing for creating temp admin user, please set SYNO_Username & SYNO_Password instead."
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return 1
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fi
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fi
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_debug "Setting temp admin user credential..."
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SYNO_Username=sc-acmesh-tmp
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SYNO_Password=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 16)
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# Ignore 2FA-OTP settings which won't be needed.
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SYNO_Device_Name=
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SYNO_Device_ID=
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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_USE_TEMP_ADMIN, or set both SYNO_Username and SYNO_Password."
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return 1
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fi
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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_Create "$SYNO_Create"
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_debug2 SYNO_Device_Name "$SYNO_Device_Name"
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_secure_debug2 SYNO_Device_ID "$SYNO_Device_ID"
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# Optional scheme, hostname & port for Synology DSM
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_getdeployconf SYNO_Scheme
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_getdeployconf SYNO_Hostname
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_getdeployconf SYNO_Port
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# Default values for scheme, hostname & port
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# Defaulting to localhost & http, because it's localhost…
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[ -n "${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_USE_TEMP_ADMIN "$SYNO_USE_TEMP_ADMIN"
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_savedeployconf SYNO_Scheme "$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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_base_url="$SYNO_Scheme://$SYNO_Hostname:$SYNO_Port"
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_debug _base_url "$_base_url"
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_debug "Getting API version"
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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 & 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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otp_code=""
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# START - DEPRECATED, only kept for legacy compatibility reasons
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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 "${SYNO_TOTP_SECRET}" 2>/dev/null)"
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if [ -n "$SYNO_DID" ]; then
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_H1="Cookie: did=$SYNO_DID"
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export _H1
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_debug3 H1 "${_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_DID" "$_base_url/webapi/auth.cgi?enable_syno_token=yes")
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_debug3 response "$response"
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# END - DEPRECATED, only kept for legacy compatibility reasons
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# If SYNO_DeviceDevice_ID & SYNO_Device_Name both empty, just log in normally
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elif [ -z "${SYNO_Device_ID:-}" ] && [ -z "${SYNO_Device_Name:-}" ]; then
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if [ -n "$SYNO_USE_TEMP_ADMIN" ]; then
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_debug "Creating temp admin user in Synology DSM"
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synouser --del "$SYNO_Username" >/dev/null 2>/dev/null
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synouser --add "$SYNO_Username" "$SYNO_Password" "" 0 "" 0 >/dev/null
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synogroup --memberadd administrators "$SYNO_Username" >/dev/null
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fi
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response=$(_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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_debug3 response "$response"
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# Get device ID if still empty first, otherwise log in right away
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# If SYNO_Device_Name is set, we treat that account enabled two-factor authorization, consider SYNO_Device_ID is not set, so it won't be able to login without requiring the OTP code.
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elif [ -n "${SYNO_Device_Name:-}" ] && [ -z "${SYNO_Device_ID:-}" ]; then
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printf "Enter OTP code for user '%s': " "$SYNO_Username"
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read -r otp_code
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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&otp_code=$otp_code&enable_syno_token=yes&enable_device_token=yes&device_name=$SYNO_Device_Name")
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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_Device_ID=$(echo "$response" | grep "$id_property" | sed -n 's/.*"'$id_property'" *: *"\([^"]*\).*/\1/p')
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_secure_debug2 SYNO_Device_ID "$SYNO_Device_ID"
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# Otherwise, if SYNO_Device_ID is set, we can just use it to login.
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else
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if [ -z "${SYNO_Device_Name:-}" ]; then
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printf "Enter device name or leave empty for default (CertRenewal): "
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read -r SYNO_Device_Name
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[ -n "${SYNO_Device_Name}" ] || SYNO_Device_Name="CertRenewal"
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fi
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response=$(_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_Device_Name&device_id=$SYNO_Device_ID")
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_secure_debug3 response "$response"
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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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_err "Unable to authenticate to $_base_url - check your username & password."
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_err "If two-factor authentication is enabled for the user:"
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_err "- set SYNO_Device_Name then input *correct* OTP-code manually"
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_err "- get & set SYNO_Device_ID via your browser cookies"
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_remove_temp_admin "$SYNO_USE_TEMP_ADMIN" "$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 & password are good, save them
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_savedeployconf SYNO_Username "$SYNO_Username"
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_savedeployconf SYNO_Password "$SYNO_Password"
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if [ -z "${SYNO_USE_TEMP_ADMIN:-}" ]; then
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_savedeployconf SYNO_Device_Name "$SYNO_Device_Name"
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_savedeployconf SYNO_Device_ID "$SYNO_Device_ID"
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fi
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_info "Getting certificates in Synology DSM"
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response=$(_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 "$id"
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if [ -z "$id" ] && [ -z "${SYNO_Create:-}" ]; then
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_err "Unable to find certificate: $SYNO_Certificate & \$SYNO_Create is not set"
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_remove_temp_admin "$SYNO_USE_TEMP_ADMIN" "$SYNO_Username"
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return 1
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fi
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# We've verified this certificate description is a thing, so save it
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_savedeployconf SYNO_Certificate "$SYNO_Certificate" "base64"
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_info "Generate 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 "Restarting HTTP services succeeded"
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else
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_info "Restarting HTTP services failed"
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fi
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_remove_temp_admin "$SYNO_USE_TEMP_ADMIN" "$SYNO_Username"
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_logout
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return 0
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else
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_remove_temp_admin "$SYNO_USE_TEMP_ADMIN" "$SYNO_Username"
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_err "Unable to update certificate, error code $response"
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_logout
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return 1
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fi
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}
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#################### Private functions below ##################################
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_logout() {
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# Logout CERT user only to not occupy a permanent session, e.g. in DSM's "Connected Users" widget (based on previous variables)
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response=$(_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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_remove_temp_admin() {
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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 "Removing temp admin user in Synology DSM"
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synouser --del "$username" >/dev/null
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fi
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}
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