lmaertin/syno-photos-downloader.sh Secret

## syno-photos-downloader.sh
#!/usr/bin/bash

#Script to download photos from a public shared album in Synology Photos
#
#Setup:
#0) sudo apt install jq
#1) Share an album as "Anyone with link can view" in Synology Photos
#2) Copy AlbumId (end of the Link)
#3) Add host and album Id below
#4) run manually or via cronjob
#
# Example for cronjob:
# 1) run crontab -e
# 2) add this line :
#    #download new photos every day at 0.00h
#    0 0  *   *   *    /home/pi/syno-photos-downloader/syno-photos-downloader.sh
# 3) Save and close
#
# Note curl is set to silent mode, but still shows errors
#
# based on:
# https://daanmiddendorp.com/tech/2022/02/14/new-destination-for-my-broken-kindle.html
# https://github.com/landgenoot/kindle-synology-photos-photoframe/blob/main/src/refresh.sh

HOST="https://TODO:TODO"
ALBUMID="TODO"

EXPORTDIR="photos"

#variable to cache photo filenames in album
PHOTONAMES=""

#create output dir if not existing
mkdir -p ${EXPORTDIR}

link=${HOST}'/mo/sharing/'${ALBUMID}
cookie=$(curl -sS -k "${link}" -i | grep sharing_sid)
cookie="${cookie#*:}"
cookie="${cookie%;*}"
base_url="${link%/*}"
album_code="${link##*/}"

album=$(curl -sS -k "${base_url}/webapi/entry.cgi?" -X POST \
-H "x-syno-sharing: ${album_code}" \
-H "Cookie: ${cookie}" \
-d 'offset=0&limit=1000&api="SYNO.Foto.Browse.Item"&method="list"&version=1 -b cookies.txt')

#number of photos in album
length=$(($(echo "${album}" | jq -r '.data[] | length ')-1))

#get all images (if not existing)
#echo -ne "Downlading $((${length}+1)) photos: "
for ((i=0;i<=length;i++)); do
	#show progress
	#echo -ne "$((${i}+1)) "
	id=$(echo "${album}" | jq -r ".data[] | .[${i}] | .id ")

	#cache filename
	PHOTONAMES="${PHOTONAMES}${id}\|"

	#download photo if not yet existing in export dir
	if [ ! -f "${EXPORTDIR}/${id}.jpg" ]; then
		#curl -sS -k "${base_url}/webapi/entry.cgi/20210807_144336.jpg" -G
		echo "Downloading new photo ${id}.jpg..."
		curl -sS -k "${base_url}/webapi/entry.cgi/20210807_144336.jpg" -G \
		-H "Cookie: ${cookie}" \
		-d "id=${id}" -d "cache_key=\"35336_1628372812\"&type=\"unit\"&size=\"xl\"&passphrase=\"${album_code}\"&api=\"SYNO.Foto.Thumbnail\"&method=\"get\"&version=1&_sharing_id=\"${album_code}\"" \
		-o "${EXPORTDIR}/${id}.jpg"
	fi
done

#delete orphaned photos, i.e., no longer in album
len=${#PHOTONAMES}
if [ ${len} -gt 2 ]
then
	#remove \| at the end of the string
	PHOTONAMES=${PHOTONAMES::len-2}

	cd ${EXPORTDIR}
	#get inversed list of photos in folder but NOT in PHOTONAMES
	PHOTONAMESORPHANED=$(ls | grep -v "${PHOTONAMES}")
	if [ ${#PHOTONAMESORPHANED} -gt 0 ]
	then
		echo "Remove orphaned photos:"
		echo "${PHOTONAMESORPHANED}"
		#rm -r ${PHOTONAMESORPHANED}
		rm -r `ls | grep -v "${PHOTONAMES}"`
	fi
	cd ..
fi

echo "Photo download done."
	#!/usr/bin/bash

	#Script to download photos from a public shared album in Synology Photos
	#
	#Setup:
	#0) sudo apt install jq
	#1) Share an album as "Anyone with link can view" in Synology Photos
	#2) Copy AlbumId (end of the Link)
	#3) Add host and album Id below
	#4) run manually or via cronjob
	#
	# Example for cronjob:
	# 1) run crontab -e
	# 2) add this line :
	# #download new photos every day at 0.00h
	# 0 0 * * * /home/pi/syno-photos-downloader/syno-photos-downloader.sh
	# 3) Save and close
	#
	# Note curl is set to silent mode, but still shows errors
	#
	# based on:
	# https://daanmiddendorp.com/tech/2022/02/14/new-destination-for-my-broken-kindle.html
	# https://github.com/landgenoot/kindle-synology-photos-photoframe/blob/main/src/refresh.sh

	HOST="https://TODO:TODO"
	ALBUMID="TODO"

	EXPORTDIR="photos"

	#variable to cache photo filenames in album
	PHOTONAMES=""

	#create output dir if not existing
	mkdir -p ${EXPORTDIR}

	link=${HOST}'/mo/sharing/'${ALBUMID}
	cookie=$(curl -sS -k "${link}" -i \| grep sharing_sid)
	cookie="${cookie#*:}"
	cookie="${cookie%;*}"
	base_url="${link%/*}"
	album_code="${link##*/}"

	album=$(curl -sS -k "${base_url}/webapi/entry.cgi?" -X POST \
	-H "x-syno-sharing: ${album_code}" \
	-H "Cookie: ${cookie}" \
	-d 'offset=0&limit=1000&api="SYNO.Foto.Browse.Item"&method="list"&version=1 -b cookies.txt')

	#number of photos in album
	length=$(($(echo "${album}" \| jq -r '.data[] \| length ')-1))

	#get all images (if not existing)
	#echo -ne "Downlading $((${length}+1)) photos: "
	for ((i=0;i<=length;i++)); do
	#show progress
	#echo -ne "$((${i}+1)) "
	id=$(echo "${album}" \| jq -r ".data[] \| .[${i}] \| .id ")

	#cache filename
	PHOTONAMES="${PHOTONAMES}${id}\\|"

	#download photo if not yet existing in export dir
	if [ ! -f "${EXPORTDIR}/${id}.jpg" ]; then
	#curl -sS -k "${base_url}/webapi/entry.cgi/20210807_144336.jpg" -G
	echo "Downloading new photo ${id}.jpg..."
	curl -sS -k "${base_url}/webapi/entry.cgi/20210807_144336.jpg" -G \
	-H "Cookie: ${cookie}" \
	-d "id=${id}" -d "cache_key=\"35336_1628372812\"&type=\"unit\"&size=\"xl\"&passphrase=\"${album_code}\"&api=\"SYNO.Foto.Thumbnail\"&method=\"get\"&version=1&_sharing_id=\"${album_code}\"" \
	-o "${EXPORTDIR}/${id}.jpg"
	fi
	done

	#delete orphaned photos, i.e., no longer in album
	len=${#PHOTONAMES}
	if [ ${len} -gt 2 ]
	then
	#remove \\| at the end of the string
	PHOTONAMES=${PHOTONAMES::len-2}

	cd ${EXPORTDIR}
	#get inversed list of photos in folder but NOT in PHOTONAMES
	PHOTONAMESORPHANED=$(ls \| grep -v "${PHOTONAMES}")
	if [ ${#PHOTONAMESORPHANED} -gt 0 ]
	then
	echo "Remove orphaned photos:"
	echo "${PHOTONAMESORPHANED}"
	#rm -r ${PHOTONAMESORPHANED}
	rm -r `ls \| grep -v "${PHOTONAMES}"`
	fi
	cd ..
	fi

	echo "Photo download done."