Download and timestamp all images from a given eBay listing URL

ebaydl.sh

#!/bin/sh
function _ebaydl_find_hashes {
	local URL="$1"
	local DIR="$2"
	local SIZES=(64 500 1600)
	curl --silent "$URL" | grep -E -o "https?://i.ebayimg.com/images/g/[0-9A-Za-z~-]{15,16}/s-l[0-9]{2,}.[a-z]{3,4}" | sort | cut -d"/" -f6 | uniq | while read -r HASH
	do
		echo "$HASH"
		for SIZE in ${SIZES[@]}
		do
			local IMG_URL="https://i.ebayimg.com/images/g/$HASH/s-l$SIZE.jpg"
			wget --quiet --output-document "${DIR}/${HASH}_${SIZE}.jpg" "$IMG_URL"
		done
	done
}

function _ebaydl_stamp {
	local URL="$1"
	local NAME="$2"
	local ID="$3"
	local DIR="$4"
	local DATE=$(date)
	echo "url = $URL\nname = $NAME\nid = $ID\ndate = $DATE" > "$DIR/stamp.txt"
}

function _ebaydl_get_name {
	local URL="$1"
	NAME=$(curl --silent "$URL" | grep -E -o "(<title>).+(<\/title>)")
	NAME=${NAME#"<title>"}			# trim prefix
	NAME=${NAME%" | eBay</title>"}	# trim suffix
	NAME=$(echo $NAME | xargs)		# trim whitespace
	NAME=$(echo $NAME | sed -e 's/\//_/g' | sed -e 's/&amp;/_/g')	# strip symbols
}

function ebaydl {
	URL="$1"
	
	_ebaydl_get_name "$URL"
	echo "name: $NAME"

	ID=$(echo "$URL" | cut -d"/" -f5 | cut -d"?" -f1)
	echo "id: $ID"

	DIR="${NAME}_${ID}"

	mkdir "$DIR"

	_ebaydl_find_hashes "$URL" "$DIR"
	_ebaydl_stamp "$URL" "$NAME" "$ID" "$DIR"
}