#!/bin/sh

#
# Get authorization bearer from twitter
#

main_js=$(curl -fgs -A '' 'https://twitter.com/' |
   sed -En '/web\/main\.[0-9a-f]+\.js/s/.*href="([^"]+)".*/\1/p')

if [ -z "${main_js}" ]; then
	echo "$(basename $0): main.*.js script not found"
	exit 1
fi

authorization_bearer=$(curl -fgs -A '' "${main_js}" |
    awk '
        /s="Web-12",c=/ {
            if (match($0, /s="Web-12",c="([^"]+)",u=/)) {
                print substr($0, RSTART + 14, RLENGTH - 18)
            }
        }
')

if [ -z "${authorization_bearer}" ]; then
	echo "$(basename $0): could not find authorization bearer"
	exit 1
fi

echo "${authorization_bearer}"