#!/bin/bash

# v0.1  : basic title extract
# v0.2  : added help arguments
# v0.3  : added version arguments
# v0.3.1: change !title to title in version info
# v0.4  : added case insensitive matching
# v0.5  : ignore SSL certificate errors
# v0.6  : switch to curl, add maximum filesize and time limits
# v0.7  : follow HTTP redirects, was broken since switch to curl
# v0.7.1: pretend to be Firefox, some broken websites reject cURL

read url

if [ "$url" == "-h" ] || [ "$url" == "--help" ]
then
  echo "Usage: '!title <url>' where <url> is an http:// or https:// URL"
elif [ "$url" == "-v" ] || [ "$url" == "--version" ]
then
  echo "title version 0.7.1"
else
  curl --location --insecure --silent --max-filesize 1048576 --max-time 10 -A "Mozilla/5.0 (X11; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0" "$url" | sed -n -e 'H;${x;s!.*<head[^>]*>\(.*\)</head>.*!\1!I;tnext};b;:next;s!.*<title>\(.*\)</title>.*!\1!pI'
fi