pia

#!/bin/bash

# Private Internet Access
function install_pia {
	# Variables
	NAME="Private Internet Access"
	TARBALL=pia-v75-installer-linux
	VERSION=v75
	CHECKSUM=4948b4a7f8d6454ac3bada85e37883a3b775a45f7da8e83a2c17042053c62b4b
	# Start
	echo_message header 'Begin '$NAME' installation'
	# Download
	echo_message info 'Downloading tarball for version '$VERSION'...'
	curl -O https://installers.privateinternetaccess.com/download/${TARBALL}.tar.gz
	# Verify download via sha256sum
	echo_message info 'Verifying download using SHA-256...'
	sha256sum ${TARBALL}.tar.gz | grep $CHECKSUM &> /dev/null
	EXITSTATUS=$?
	if [ $EXITSTATUS = 1 ]; then
		# If checksum fails
		echo_message error 'Error: checksums do not match. Aborting...'
		whiptail --title "Error" --msgbox "Verification of $NAME download failed." 8 56
		rm ${TARBALL}*.tar.gz
		thirdparty
	else
		# If checksum succeeds
		echo_message success "Checksums look good. Proceeding"
		# Unpack tarball
		echo_message info 'Unpacking '$NAME' archive...'
		tar -xzf $TARBALL*.tar.gz
		# Run install script
		echo_message info 'Running install script...'
		./${TARBALL}.sh
		# Cleanup and finish
		rm ${TARBALL}*.tar.gz
		rm ${TARBALL}*.sh
		echo_message success "Installation of '$TARBALL' complete."
		whiptail --title "Finished" --msgbox "Installation of $NAME complete." 8 56
		thirdparty
	fi
}