comic-dl

#!/bin/bash

TMPDIR=$(mktemp -d -t comic-dl)
q='""'

parseTitle() {
	echo "$1" | perl -pe 's#^.*/Comic/(.*)/Issue.*#$1#'
}

parseIssue() {
	echo "$1" | perl -pe 's#^.*/Issue-(\d+).*#$1#'
}

download() {
    # check for valid arguments
    if [ $# -lt 3 ]; then
        echo "Usage: download url title issue"
        return
    fi
	url="$1"
	title="$2"
	issue=$(printf "%03d" $3)
	page=1
	echo -n "$title #${3}: "
	curl --silent --location -u '${username}:${password}' "${url}" \
	| perl -ne 'if(/lstImages.push\("(.*)"\)/) { print "$1\n" }' \
	| while read url; do
		echo "url=$url"
		pageStr=$(printf "%04d" $page)
		curl --silent "${url//[$'\t\r\n']}" -o "${TMPDIR}/${title}.${issue}.${pageStr}.jpg"
		echo -n "[$page]"
		((page++))
	done
	echo ""
	if [ $page -lt 2 ]; then
		echo "Not enough pages? - $title.$issue $url"
	else
		# don't specify ".jpg" since it might be .png or .gif or whatever
		zip -q "$title.$issue.cbz" "${TMPDIR}/$title.$issue."[0-9][0-9]*.* && rm "${TMPDIR}/$title.$issue."[0-9][0-9]*.*
	fi
}

cleanup() {
	rm -rf "${TMPDIR}"
	echo "## issue interrupt"
	exit 1	
}

RCFILE=~/.comic-dl
if [ ! -r $RCFILE ]; then
	echo -n "Username: ";
	read username
	echo -n "Password: "
	read -s password
	echo "username=$q$username$q; password=$q$password$q" > "$RCFILE"
else
	. $RCFILE
fi

trap 'cleanup' INT

if [ $# = 0 ]; then
    cat <<-EOF

	Usage: comic-dl url
	- url is from https://readcomiconline.li

EOF
	exit 0
fi


for url; do
	title=$(parseTitle "$url")
	issue=$(parseIssue "$url")
	issueString=$(printf "%03d" $issue)
	filename="$title.$issueString.cbz"
	if [ -r "$filename" ]; then
		echo "Skipping $filename (exists)"
	else
		download "$url" "$title" "$issue" && sleep 2
	fi
done

rm -rf "${TMPDIR}"