!/bin/bash -e

POW_BITS="${POW_BITS:-26}" MAX_PDF_SIZE_IN_MIB="${MAX_PDF_SIZE_IN_MIB:-4}"

POW_CHALLENGE="$(tr -dc A-Za-z0-9 /dev/null | head -c 16)"

cat banner

if [[ "$POW_BITS" -gt 0 ]]; then echo "Proof of Work: send me output of hashcash -qmb$POW_BITS $POW_CHALLENGE" read -r token hashcash -ycb"$POW_BITS" -r "$POW_CHALLENGE" "$token" fi

CONN_ENV="$(mktemp -d -t challenv-XXXXXXXXXX)" trap 'rm -rf -- "$CONN_ENV"' EXIT

echo "Send me your pdf (max size: $MAX_PDF_SIZE_IN_MIB MiB), end with EOF." (ulimit -f $(($MAX_PDF_SIZE_IN_MIB1024)) && cat > "$CONN_ENV/input.pdf") echo "OK. $(wc -c < "$CONN_ENV/input.pdf") bytes read." echo "Waiting for an available worker..." if sem --ungroup --fg --id pdf2html -j400% " echo Running...; echo podman run --log-level error --secret flag --rm -a stdout -a stderr --ulimit fsize=$((41024*1024)) \ --timeout 60 --memory 2g -v $CONN_ENV:/io -w /io hsogroupie/pdftohtml input.pdf output 2>&1"; then echo "Here is your PDF rendered in HTML, as a tarball:" tar --sort=name --mtime=@0 --owner=0 --group=0 --numeric-owner -cf - -C "$CONN_ENV" output | head -c 1M elif [[ ! $? -eq 1 ]]; then echo "Something wrong: $?" fi