A script for download manga from submanga.online

manga.sh

# manga.sh
# A script for download manga from submanga.online
# By: @yonaikerlol

if [ -z "$1" ]; then
	echo "[Error] Required a manga"
	exit 1
fi

if ! command -v curl &> /dev/null; then
	echo "[Error] Curl is required"
	echo -e "\tInstall it with: 'apt-get install curl'"
	exit 1
fi

manga="${1}"
url="https://submanga.online/manga/${manga}"

echo "Extracting '${manga}'..."

chapters=$(curl -Ls "${url}" | grep -Eo "${url}/[0-9]{1,}" | sort -u | wc -l)
echo -e "\tChapters: ${chapters}"
for (( i=1; i <= chapters; i++ )); do mkdir -p "${manga}/${i}"; done

for (( chapter=1; chapter <= chapters; chapter++ )); do
	echo -e "\n\tExtracting chapter '${chapter}'..."

	pages=$(curl -Ls "${url}/${chapter}" | grep -Eo "https://submanga.online/uploads/manga/${manga}/chapters/${chapter}/[0-9]{1,}.jpg" | sort -u | wc -l)

	echo -e "\t\tPages: ${pages}"

	files=()
	for (( page=1; page <= pages; page++ )); do
		if [ $page -lt 10 ]; then
			{
				curl -Lsf "https://submanga.online/uploads/manga/${manga}/chapters/${chapter}/0${page}.jpg" -o "${manga}/${chapter}/0${page}.jpg"
			} || {
				curl -Ls "https://submanga.online/uploads/manga/${manga}/chapters/${chapter}/${page}.jpg" -o "${manga}/${chapter}/0${page}.jpg"
			}
			
			files+=("${manga}/${chapter}/0${page}.jpg")
		else
			curl -Ls "https://submanga.online/uploads/manga/${manga}/chapters/${chapter}/${page}.jpg" -o "${manga}/${chapter}/${page}.jpg"
			
			files+=("${manga}/${chapter}/${page}.jpg")
		fi
	done

	if command -v jpegoptim &> /dev/null; then
		jpegoptim -q ${files[*]}
	fi
    
    if command -v convert &> /dev/null; then
        convert -quiet ${files[*]} "${manga}/${chapter}.pdf"
        rm -rf "${manga}/${chapter}"
    fi
done