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#!/usr/bin/env sh
# Here is a script to deploy cert to Synology DSM
#
# it requires the jq and curl are in the $PATH and the following
# environment variables must be set:
#
# SYNO_Username - Synology Username to login (must be an administrator)
# SYNO_Password - Synology Password to login
# SYNO_Certificate - Certificate description to target for replacement
#
# The following environmental variables may be set if you don't like their
# default values:
#
# SYNO_Scheme - defaults to http
# SYNO_Hostname - defaults to localhost
# SYNO_Port - defaults to 5000
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# SYNO_DID - device ID to skip OTP - defaults to empty
#
#returns 0 means success, otherwise error.
######## Public functions #####################
_syno_get_cookie_data() {
grep -i "\W$1=" "$HTTP_HEADER" | grep -i "^Set-Cookie:" | _tail_n 1 | _egrep_o "$1=[^;]*;" | tr -d ';'
}
#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 successfully authenticate
_getdeployconf SYNO_Username
_getdeployconf SYNO_Password
_getdeployconf SYNO_Create
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_getdeployconf SYNO_DID
if [ -z "${SYNO_Username:-}" ] || [ -z "${SYNO_Password:-}" ]; then
_err "SYNO_Username & SYNO_Password must be set"
return 1
fi
_debug2 SYNO_Username "$SYNO_Username"
_secure_debug2 SYNO_Password "$SYNO_Password"
# Optional scheme, hostname, and port for Synology DSM
_getdeployconf SYNO_Scheme
_getdeployconf SYNO_Hostname
_getdeployconf SYNO_Port
# default vaules 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 "$SYNO_Port"
# Get the certificate description, but don't save it until we verfiy it's real
_getdeployconf SYNO_Certificate
_debug SYNO_Certificate "${SYNO_Certificate:-}"
_base_url="$SYNO_Scheme://$SYNO_Hostname:$SYNO_Port"
_debug _base_url "$_base_url"
# Login, get the token from JSON and session id from cookie
_info "Logging into $SYNO_Hostname:$SYNO_Port"
encoded_username="$(printf "%s" "$SYNO_Username" | _url_encode)"
encoded_password="$(printf "%s" "$SYNO_Password" | _url_encode)"
encoded_did="$(printf "%s" "$SYNO_DID" | _url_encode)"
response=$(_post "username=$encoded_username&passwd=$encoded_password&device_id=$encoded_did" "$_base_url/webman/login.cgi?enable_syno_token=yes")
token=$(echo "$response" | grep "SynoToken" | sed -n 's/.*"SynoToken" *: *"\([^"]*\).*/\1/p')
_debug3 response "$response"
_debug token "$token"
if [ -z "$token" ]; then
_err "Unable to authenticate to $SYNO_Hostname:$SYNO_Port using $SYNO_Scheme."
_err "Check your username and password."
return 1
fi
_H1="Cookie: $(_syno_get_cookie_data "id"); $(_syno_get_cookie_data "smid")"
_H2="X-SYNO-TOKEN: $token"
export _H1
export _H2
_debug2 H1 "${_H1}"
_debug2 H2 "${_H2}"
# Now that we know the username and password are good, save them
_savedeployconf SYNO_Username "$SYNO_Username"
_savedeployconf SYNO_Password "$SYNO_Password"
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_savedeployconf SYNO_DID "$SYNO_DID"
_info "Getting certificates in Synology DSM"
response=$(_post "api=SYNO.Core.Certificate.CRT&method=list&version=1" "$_base_url/webapi/entry.cgi")
_debug3 response "$response"
id=$(echo "$response" | sed -n "s/.*\"desc\":\"$SYNO_Certificate\",\"id\":\"\([^\"]*\).*/\1/p")
_debug2 id "$id"
if [ -z "$id" ] && [ -z "${SYNO_Create:-}" ]; then
_err "Unable to find certificate: $SYNO_Certificate and \$SYNO_Create is not set"
return 1
fi
# we've verified this certificate description is a thing, so save it
_savedeployconf SYNO_Certificate "$SYNO_Certificate"
default=false
if echo "$response" | sed -n "s/.*\"desc\":\"$SYNO_Certificate\",\([^{]*\).*/\1/p" | grep -- 'is_default":true' >/dev/null; then
default=true
fi
_debug2 default "$default"
_info "Generate form POST request"
nl="\0015\0012"
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delim="--------------------------$(_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}${SYNO_Certificate}"
content="$content${nl}--$delim${nl}Content-Disposition: form-data; name=\"as_default\"${nl}${nl}${default}"
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=$token" "" "POST" "multipart/form-data; boundary=${delim}")
_debug3 response "$response"
if ! echo "$response" | grep '"error":' >/dev/null; then
if echo "$response" | grep '"restart_httpd":true' >/dev/null; then
_info "http services were restarted"
else
_info "http services were NOT restarted"
fi
return 0
else
_err "Unable to update certificate, error code $response"
return 1
fi
}