Save LINE sticker packages by ID; prerequisite: unzip, imagemagick

down_line.sh

#!/bin/bash

ID=$1
ZIP="https://stickershop.line-scdn.net/stickershop/v1/product/${ID}/android/stickers.zip"
ICON="https://stickershop.line-scdn.net/stickershop/v1/product/${ID}/LINEStorePC/main.png"
DIR="${HOME}/line/${ID}"

echo LINE store: https://store.line.me/stickershop/product/${ID}

if [ -d "${DIR}" ]; then
  echo Already downloaded.
  exit 1
fi

mkdir -p "${DIR}"; cd "${DIR}"
curl -sSL "${ZIP}" -o "IP_${ID}.zip"
unzip "IP_${ID}.zip" > /dev/null
rm *key* tab* productInfo.meta
rm "IP_${ID}.zip"

for p in $(ls -A); do
  convert "${p}" -resize 512x512 "${p}" > /dev/null
  if [ $? -ne 0 ]; then
    curl -sSL "https://stickershop.line-scdn.net/stickershop/v1/sticker/${p%.*}/android/sticker.png" -o "${p}"
    convert "${p}" -resize 512x512 "${p}"
  fi
  convert "${p}" -sharpen 0x2 "${p}"
done

curl -sSL "${ICON}" -o cover.png
convert cover.png -resize 100x100! icon.png

echo Done.