Sapienza wireless cpal

Bash script for automatic login to sapienza wireless captive portal

Dependencies

Dependency	Arch	Debian 7 / Ubuntu
GNU bash	bash	bash
curl	curl	curl
iwgetid	wireless_tools	wireless-tools

One shot usage

CPAL_USER="yourusername" CPAL_PASS="yourpassword" swcp-autologin.sh

System wide installation

You can install the script as a system command

sudo cp swcp-autologin.sh /usr/local/bin/swcp-autologin
sudo chmod +x /usr/local/bin/swcp-autologin

Run as daemon

To run swcp-autologin as daemon you need to follow the system wide installation procedure and then choose one of the integration method:

• cron integration
• systemd integration

Cron integration

Thanks to cron it's possible to automatically launch the script at specific time intervals

edit your user crons with crontab -e and add the following line:

* * * * * env CPAL_USER="" CPAL_PASS="" PATH="$PATH:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" swcp-autologin >> /tmp/swcp-autologin.log 2>&1

remember to fill in the CPAL_USER and CPAL_PASS variables

you will find the daemon log at /tmp/swcp-autologin.log

Systemd integration

This installation method provide a configurable timed daemon that will keep you logged in.

Configuration

write your username and password in /etc/swcp-autologin.conf:

CPAL_USER="yourusername"
CPAL_PASS="yourpassword"

It's recommanded to make it readable only:

sudo chmod 660 /etc/swcp-autologin.conf

Systemd files

Now we need to copy systemd files:

sudo cp systemd/swcp-autologin.* /etc/systemd/system/

Usage

# Perform login:
sudo systemctl start swcp-autologin.service

# Start daemon ( this will keep you logged in )
sudo systemctl start swcp-autologin.timer

# Stop daemon
sudo systemctl stop swcp-autologin.timer

# Enable daemon automatic startup:
sudo systemctl enable swcp-autologin.timer

# Disable daemon automatic startup:
sudo systemctl disable swcp-autologin.timer

# Show logs
sudo journalctl -fb -u swcp-autologin