Attempt to automate host authentication in PUCRS using curl

authenticate_pucrs.sh

#!/bin/bash

# By Leandro Heck (leoheck@gmail.com)
# Save this script in /usr/bin/authenticate_pucrs

# Usage
# authenticate_pucrs 12981829

# Automating.. 
# echo "minhaSenha" | authenticate_pucrs 12981829

# Automating with crontab
# 0 */6 * * * echo "senha" | authenticate_pucrs 12981829

authenticate_pucrs()
{
	user=$1

	echo -n "password for $user: "
	read -s pass

    if [[ $# != 1 ]]; then
        echo -e "\nUSAGE: $0 <MATRICULA>\n"
        return 1
    fi

	set -x

	curl 'https://gwpolicy02.pucrs.br/Login' \
		--tlsv1.2 --ciphers \
		-v \
		-o /tmp/response \
		-w "\nStatus: %{http_code}\n\n" \
		--compressed \
		-H 'Host: gwpolicy02.pucrs.br' \
		-H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0' \
		-H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' \
		-H 'Accept-Language: en-US,en;q=0.5' \
		-H 'Content-Type: application/x-www-form-urlencoded' \
		-H 'Referer: https://gwpolicy02.pucrs.br/PortalMain' \
		-H 'Cookie: cpnacportal_login_type=password; cpnacportal_username=10084214; NACSID=5cde328e527b64ce23477b2582092642' \
		-H 'Connection: keep-alive' \
		--data realm=passwordRealm \
		--data username="$user" \
		--data password="$password"

	{ set +x; } 2>/dev/null

	cat /tmp/response 2> /dev/null
	rm -rf /tmp/response
}