rmitproxy_silent

#!/bin/bash

# =============================================================================
# If the computer is currently connected to RMIT's network then this
# script will set the appropriate proxy environment variables, otherwise
# it just unsets everything
 
# For ubuntu users: edit info in the "Sensitive info" part, then:
#
#   sudo cp ~/dotfiles/scripts/rmitproxy_silent /etc/network/if-up.d/rmitproxy_silent
#   sudo chmod 700 /etc/network/if-up.d/rmitproxy_silent
#
# to execute it every time your computer connects to a network :)

# Inpired by:
# http://askubuntu.com/questions/150210/how-do-i-set-systemwide-proxy-servers-in-xubuntu-lubuntu-or-ubuntu-studio/151047#151047
# =============================================================================

# RMIT's SSID and basic info
ssid=RMITWPA
host=proxy.rmit.edu.vn
port=8080

# Sensitive info - ENTER YOUR INFO HERE
# =====================================
user='enter_your_s_number_here'
pass='your_rmit_account_password'
sudopw='your_sudo_password'
# =====================================

# DON'T TOUCH ANYTHING BELOW unless you know what you're doing!

# Check if this system has git
git --version 2>&1 >/dev/null
git_installed=$?

rmitOn() {

    # Standard environment variables

    http_str=http://$user:$pass@$host:$port
    https_str=https://$user:$pass@$host:$port

    http=( http_proxy HTTP_PROXY FTP_PROXY ftp_proxy )
    for envar in $http
    do
        export $envar=$http_str
    done

    https=( https_proxy HTTPS_PROXY )
    for envar in $https
    do
        export $envar=$https_str
    done

    export no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com"
    export NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com"

    # Gnome proxy settings
    gsettings set org.gnome.system.proxy.http host $host
    gsettings set org.gnome.system.proxy.https host $host
    gsettings set org.gnome.system.proxy mode 'manual'

    # Hardcore stuff ahead - requiring sudo permission
    # =====================================================================

    # /etc/apt/apt.conf - If you ever want to install stuff while at RMIT
    aptconf=`echo -e "Acquire::http::proxy \"$http_str\";\nAcquire::https::proxy \"$https_str\";"`
    # Write apt.conf file content to temporary file then move it to its
    # appropriate location. For some weird reason I can't write directly to
    # a file in /etc/apt/
    echo $aptconf > ~/tmp_apt_conf
    echo $sudopw | sudo -S mv -f ~/tmp_apt_conf /etc/apt/apt.conf || true

    # Git
    if [ $git_installed -eq 0 ]; then
        git config --global http.proxy "$http_str" || true
        git config --global https.proxy "$https_str" || true
        git config --global core.gitproxy '/bin/gitproxy'
    fi

}


rmitOff() {

    envars=( https_proxy HTTPS_PROXY http_proxy HTTP_PROXY FTP_PROXY ftp_proxy all_proxy ALL_PROXY)
    for envar in $envars
    do
        export $envar=""
    done

    # Gnome proxy settings
    gsettings set org.gnome.system.proxy.http host ""
    gsettings set org.gnome.system.proxy.https host ""
    gsettings set org.gnome.system.proxy mode 'none'

    # Hardcore stuff ahead - requiring sudo permission
    # =====================================================================

    # Switch apt conf file
    aptconf=""
    # Write apt.conf file content to temporary file then move it to its
    # appropriate location. For some weird reason I can't write directly to
    # a file in /etc/apt/
    echo $aptconf > ~/tmp_apt_conf
    echo $sudopw | sudo -S mv -f ~/tmp_apt_conf /etc/apt/apt.conf || true

    # Git
    if [ $git_installed -eq 0 ]; then
        git config --global http.proxy "" || true
        git config --global https.proxy "" || true
        git config --global core.gitproxy ''
    fi

}

# If current network SSID is RMIT's then set up the proxy,
# otherwise unset everything
if [ `iwgetid -s | grep $ssid` ]; then
    rmitOn
    echo "Connected to '$ssid'. Proxy settings applied."
else
    rmitOff
    echo "Not on '$ssid'. Proxy settings cleared."
fi