#!/usr/bin/env bash
set -euo pipefail

echo "host: $(hostname)"
echo "time: $(date -Is)"
echo

echo "Proxy variables:"
env | grep -i proxy || true
echo

urls=(
  "https://public.cancerimagingarchive.net/nbia-download/servlet/DownloadServlet"
  "https://nbia.cancerimagingarchive.net/nbia-download/servlet/DownloadServlet"
  "https://services.cancerimagingarchive.net/nbia-api/services/v1/getCollectionValues"
)

for url in "${urls[@]}"; do
  echo "===== proxy/default: ${url} ====="
  curl -I --connect-timeout 10 --max-time 25 "${url}" 2>&1 | tail -12 || true
  echo

  echo "===== direct/no-proxy: ${url} ====="
  env -u http_proxy -u https_proxy -u HTTP_PROXY -u HTTPS_PROXY -u ALL_PROXY \
    curl -I --connect-timeout 10 --max-time 25 "${url}" 2>&1 | tail -12 || true
  echo

  if [[ -n "${ALL_PROXY:-}" && "${ALL_PROXY}" == socks5://* ]]; then
    socks="${ALL_PROXY#socks5://}"
    echo "===== socks: ${url} via ${socks} ====="
    curl --socks5-hostname "${socks}" -I --connect-timeout 10 --max-time 25 "${url}" 2>&1 | tail -12 || true
    echo
  fi
done