triffid/openrc-init-pia

## openrc-init-pia
#!/sbin/openrc-run

command="/root/bin/pia-wg.sh"

CONFIGDIR="${CONFIGDIR:-/var/cache/pia-wg}"
CONFIG="${CONFIG:-/etc/pia-wg/pia-wg.conf}"

extra_started_commands="reload"

depend() {
	need net sysfs
	after modules ip-rules
	use logger
}

start_pre() {
	if ! [ -e "$CONFIG" ]
	then
		echo "Please generate a config with pia-wg.sh and copy it to $CONFIG"
		return 1
	fi
	if ! [ -w "$CONFIGDIR" ] || ! [ -d "$CONFIGDIR" ]
	then
		echo "$CONFIGDIR is not a writable directory"
		return 1
	fi
	return 0
}

start() {
	(
		export CONFIGDIR="$CONFIGDIR"
		export CONFIG="$CONFIG"
		while "$command" "$@" 2>&1 | tee /var/log/pia-wg.log && [ ${PIPESTATUS[0]} -ne 0 ]
		do
			ewarn "Failed, retrying"
			sleep 1
		done
		einfo "OK"
	);
	return 0
}

reload() {
	start -n
}

restart() {
	stop
	start
}

stop() {
	source "$CONFIG"
	ip link del "${PIA_INTERFACE:-pia}"
}

## pia-check.sh
#!/bin/bash

PIA_CONFIG="$(dirname "$(realpath "$(which "$0")")")/pia-config.sh"

if ! [ -r "$PIA_CONFIG" ]
then
	echo "Can't find pia-config.sh at $PIA_CONFIG - if you've symlinked pia-wg.sh, please also symlink that file"
	EXIT=1
fi

[ -n "$EXIT" ] && exit 1

source "$PIA_CONFIG"

SERVER_VIP="$(jq -r .server_vip "$REMOTEINFO")"

ping -I$PIA_INTERFACE -n -w5 -W0.5 -c5 "$SERVER_VIP"

## pia-config.sh
#!/bin/bash

if [ -t 1 ]
then
	BOLD=$'\e[1m'
	NORMAL=$'\e[0m'
fi
TAB=$'\t'

if [ -z "$CONFIGDIR" ]
then
	if [ $EUID -eq 0 ]
	then
		CONFIGDIR="/var/cache/pia-wg"
	else
		CONFIGDIR="$HOME/.config/pia-wg"
	fi
	mkdir -p "$CONFIGDIR"
fi

if [ -z "$CONFIG" ]
then
	if [ $EUID -eq 0 ]
	then
		CONFIG="/etc/pia-wg/pia-wg.conf"
	else
		CONFIG="$CONFIGDIR/pia-wg.conf"
	fi
fi

if [ -r "$CONFIG" ]
then
	source "$CONFIG"
fi

if [ -z "$CLIENT_PRIVATE_KEY" ]
then
	echo "Generating new private key"
	CLIENT_PRIVATE_KEY="$(wg genkey)"
fi

if [ -z "$CLIENT_PUBLIC_KEY" ]
then
	CLIENT_PUBLIC_KEY=$(wg pubkey <<< "$CLIENT_PRIVATE_KEY")
fi

if [ -z "$CLIENT_PUBLIC_KEY" ]
then
	echo "Failed to generate client public key, check your config!"
	exit 1
fi

if [ -z "$LOC" ]
then
	echo "Setting default location: ${BOLD}any${NORMAL}"
	LOC="."
fi

if [ -z "$PIA_INTERFACE" ]
then
	echo "Setting default wireguard interface name: ${BOLD}pia${NORMAL}"
	PIA_INTERFACE="pia"
fi

if [ -z "$WGCONF" ]
then
	WGCONF="$CONFIGDIR/${PIA_INTERFACE}.conf"
fi

if [ -z "$PIA_CERT" ]
then
	PIA_CERT="$CONFIGDIR/rsa_4096.crt"
fi

if [ -z "$TOKENFILE" ]
then
	TOKENFILE="$CONFIGDIR/token"
fi

if [ -z "$TOK" ] && [ -r "$TOKENFILE" ]
then
	TOK=$(< "$TOKENFILE")
fi

if [ -z "$DATAFILE" ]
then
	DATAFILE="$CONFIGDIR/data.json"
fi

if [ -z "$DATAFILE_NEW" ]
then
	DATAFILE_NEW="$CONFIGDIR/data_new.json"
fi

if [ -z "$REMOTEINFO" ]
then
	REMOTEINFO="$CONFIGDIR/remote.info"
fi

if [ -z "$CONNCACHE" ]
then
	CONNCACHE="$CONFIGDIR/cache.json"
fi

if [ -z "$HARDWARE_ROUTE_TABLE" ]
then
	# 0xca6c
	HARDWARE_ROUTE_TABLE=51820
fi

if [ -z "$VPNONLY_ROUTE_TABLE" ]
then
	# 0xca6d
	VPNONLY_ROUTE_TABLE=51821
fi

if [ -z "$PF_SIGFILE" ]
then
	PF_SIGFILE="$CONFIGDIR/pf-sig"
fi

if [ -z "$PF_BINDFILE" ]
then
	PF_BINDFILE="$CONFIGDIR/pf-bind"
fi

## pia-currentserver.sh
#!/bin/bash

PIA_CONFIG="$(dirname "$(realpath "$(which "$0")")")/pia-config.sh"

if ! [ -r "$PIA_CONFIG" ]
then
	echo "Can't find pia-config.sh at $PIA_CONFIG - if you've symlinked pia-wg.sh, please also symlink that file"
	EXIT=1
fi

[ -n "$EXIT" ] && exit 1

source "$PIA_CONFIG"

SERVER_IP="$(jq -r .server_ip "$REMOTEINFO")"

if [ -r "$CONNCACHE" ]
then
	jq . "$CONNCACHE"
elif [ -z "$(jq '.regions | .[] | select(.servers.wg[0].ip == "'"$SERVER_IP"'")' "$DATAFILE_NEW")" ]
then
	SERVER_IP_S="$(cut -d. -f1-3 <<< $SERVER_IP)"
	jq '.regions | .[] | select(.servers.wg[0].ip | test("^'"$SERVER_IP_S"'"))' "$DATAFILE_NEW"

	echo "Note: Inexact match for $SERVER_IP_S.* ($SERVER_IP not found)" >/dev/stderr
else
	jq '.regions | .[] | select(.servers.wg[0].ip == "'"$SERVER_IP"'")' "$DATAFILE_NEW"
fi

## pia-portforward.sh
#!/bin/bash

PIA_CONFIG="$(dirname "$(realpath "$(which "$0")")")/pia-config.sh"

if ! [ -r "$PIA_CONFIG" ]
then
	echo "Can't find pia-config.sh at $PIA_CONFIG - if you've symlinked pia-wg.sh, please also symlink that file"
	EXIT=1
fi

[ -n "$EXIT" ] && exit 1

source "$PIA_CONFIG"

if [ -r "$CONNCACHE" ]
then
	WG_INFO="$(jq -r . "$CONNCACHE")"
fi

SERVER_IP="$(jq -r .server_ip "$REMOTEINFO")"

if [ -z "$WG_INFO" ]
then
	WG_INFO="$(jq '.regions | .[] | select(.servers.wg[0].ip == "'"$SERVER_IP"'")' "$DATAFILE_NEW")"
fi

if [ -z "$WG_INFO" ]
then
	SERVER_IP_S="$(cut -d. -f1-3 <<< $SERVER_IP)"
	WG_INFO="$(jq '.regions | .[] | select(.servers.wg[0].ip | test("^'"$SERVER_IP_S"'"))' "$DATAFILE_NEW")"
fi

if [ -z "$WG_INFO" ]
then
	echo "Couldn't determine server information even with fuzzy search, is your $DATAFILE_NEW ok?" >/dev/stderr
	exit 1
fi

if [ "$(jq -r .port_forward <<< "$WG_INFO")" != true ]
then
	echo "Current server doesn't support port forwarding:"
	jq . <<< "$WG_INFO"
	exit 1
fi

WG_NAME="$(jq -r .name <<< "$WG_INFO")"
WG_DNS="$(jq -r .dns <<< "$WG_INFO")"

WG_HOST="$(jq -r '.servers.wg[0].ip' <<< "$WG_INFO")"
WG_CN="$(jq -r '.servers.wg[0].cn' <<< "$WG_INFO")"

# sections of the below adapted from Threarah's work at
# https://github.com/thrnz/docker-wireguard-pia/blob/003f79f3b6ba24387e10d7de63ec62e98e6518a5/run#L233-L270 with permission
# Also see https://www.reddit.com/r/PrivateInternetAccess/comments/h9y4da/is_there_any_way_to_generate_wireguard_config/fxhkpjt/

if [ -r "$PF_SIGFILE" ]
then
	PF_SIG="$(< "$PF_SIGFILE")"

	PF_PAYLOAD_RAW=$(jq -r .payload <<< "$PF_SIG")
	PF_PAYLOAD=$(base64 -d <<< "$PF_PAYLOAD_RAW")
	PF_TOKEN_EXPIRY_RAW=$(jq -r .expires_at <<< "$PF_PAYLOAD")
	PF_TOKEN_EXPIRY=$(date --date="$PF_TOKEN_EXPIRY_RAW" +%s)
fi

if [ $(( "$PF_TOKEN_EXPIRY" - $(date -u +%s) )) -le 900 ]
then
	echo "Signature stale, refetching"

	# Very strange - must connect via 10.0/8 private VPN link to the server's public IP - why?
	# I tried SERVER_VIP (10.0/8 private IP) instead of SERVER_IP (public IP) but it won't connect
	# It also won't connect if you try to connect from the internet, hence needing --interface "$PIA_INTERFACE"
	PF_SIG="$(curl --interface "$PIA_INTERFACE" --CAcert "$PIA_CERT" --get --silent --show-error --retry 5 --retry-delay 5 --max-time 15 --data-urlencode token@/dev/fd/3 --resolve "$WG_CN:19999:$SERVER_IP" "https://$WG_CN:19999/getSignature" 3< <(echo -n "$TOK") | tee "$PF_SIGFILE")"

	PF_STATUS="$(jq -r .status <<< "$PF_SIG")"
	if [ "$PF_STATUS" != "OK" ]
	then
		echo "Signature retrieval failed: $PF_STATUS"
		jq . <<< "$PF_SIG"
		exit 1
	fi

	PF_PAYLOAD_RAW=$(jq -r .payload <<< "$PF_SIG")
	PF_PAYLOAD=$(base64 -d <<< "$PF_PAYLOAD_RAW")
	PF_TOKEN_EXPIRY_RAW=$(jq -r .expires_at <<< "$PF_PAYLOAD")
	PF_TOKEN_EXPIRY=$(date +%Y-%m-%dT%H:%M:%S --date="$PF_TOKEN_EXPIRY_RAW" +%s)
fi

PF_GETSIGNATURE=$(jq -r .signature <<< "$PF_SIG")
PF_PORT=$(jq -r .port <<< "$PF_PAYLOAD")

PF_BIND="$(curl --interface "$PIA_INTERFACE" --CAcert "$PIA_CERT" --get --silent --show-error --retry 5 --retry-delay 5 --max-time 15 --data-urlencode payload@/dev/fd/3 --data-urlencode signature@/dev/fd/4 --resolve "$WG_CN:19999:$SERVER_IP" "https://$WG_CN:19999/bindPort" 3< <(echo -n "$PF_PAYLOAD_RAW") 4< <(echo -n "$PF_GETSIGNATURE") )"

PF_STATUS="$(jq -r .status <<< "$PF_BIND")"
if [ "$PF_STATUS" != "OK" ]
then
	echo "Bind failed: $PF_STATUS"
	jq . <<< "$PF_BIND"
	exit 1
fi

( echo -n "PIA Server->Bind: "; jq -r .message <<< "$PF_BIND"; ) > /dev/stderr

echo > /dev/stderr
echo -n "Bound port: " > /dev/stderr
echo "$PF_PORT"
echo > /dev/stderr

###############################################################################
#                                                                             #
# TODO: make this more flexible for others' systems                           #
#                                                                             #
###############################################################################

echo "To test if your port has successfully been forwarded, execute:"
echo "transmission-remote -p "$PF_PORT" -pt"

###############################################################################
#                                                                             #
#                                                                             #
#                                                                             #
###############################################################################

exit 0

## pia-wg.sh
#!/bin/bash

# original script posted by tpretz at https://www.reddit.com/r/PrivateInternetAccess/comments/g08ojr/is_wireguard_available_yet/fnvs20c/
# and at https://gist.github.com/tpretz/5ea1226517d95361f063f621e45de0a6
#
# significantly modified by Triffid_Hunter
#
# Improved with suggestions from Threarah at https://www.reddit.com/r/PrivateInternetAccess/comments/h9y4da/is_there_any_way_to_generate_wireguard_config/fv3cgi9/
#
# After the first run to fetch various data files and an auth token, this script does not require the ability to DNS resolve privateinternetaccess.com

while [ -n "$1" ]
do
	case "$1" in
		"-r")
			shift
			OPT_RECONNECT=1
			;;
		"-c")
			shift
			OPT_CONFIGONLY=1
			;;
		"-h")
			shift
			OPT_SHOWHELP=1
			;;
		*)
			echo "Unrecognized option: $1"
			shift
			OPT_SHOWHELP=1
			;;
	esac
done

if [ -n "$OPT_SHOWHELP" ]
then
	echo
	echo "USAGE: $(basename "$0") [-r] [-c]"
	echo
	echo "    -r  Force reconnection even if a cached link is available"
	echo
	echo "    -c  Config only - generate a WireGuard config but do not apply it to this system"
	echo
	exit 1
fi

if ! which curl &>/dev/null
then
	echo "The 'curl' utility is required"
	echo "    Most package managers should have a 'curl' package available"
	EXIT=1
fi

if ! which jq &>/dev/null
then
	echo "The 'jq' utility is required"
	echo "    Most package managers should have a 'jq' package available"
	EXIT=1
fi

if [ -z "$OPT_CONFIGONLY" ]
then
	if ! which ip &>/dev/null
	then
		echo "The 'ip' utility from iproute2 is needed to apply configs to this machine"
		echo "    Most package managers should have a 'iproute2' package available"
		EXIT2=1
	fi

	if ! which wg &>/dev/null
	then
		echo "The 'wg' utility from wireguard-tools is needed to apply configs to this machine"
		echo "    Most package managers should have a 'wireguard-tools' package available"
		EXIT2=1
	fi
	if [ -n "$EXIT2" ]
	then
		echo
		echo "You can use the -c option if you wish to only generate a config"
	fi
	EXIT="${EXIT}${EXIT2}"
fi

PIA_CONFIG="$(dirname "$(realpath "$(which "$0")")")/pia-config.sh"

if ! [ -r "$PIA_CONFIG" ]
then
	echo "Can't find pia-config.sh at $PIA_CONFIG - if you've symlinked pia-wg.sh, please also symlink that file"
	EXIT=1
fi

[ -n "$EXIT" ] && exit 1

source "$PIA_CONFIG"

# if [ -z "$TOK" ] && ([ -z "$PIA_USERNAME" ] || [ -z "$PASS" ])
if ! [ -r "$CONFIG" ]
then
	echo "Cannot read '$CONFIG', generating a default one"
	if [ -z "$PIA_USERNAME" ]
	then
		read -p "Please enter your privateinternetaccess.com username: " PIA_USERNAME
	fi
	cat <<ENDCONFIG > "$CONFIG"
# your privateinternetaccess.com username (not needed if you already have an auth token)
PIA_USERNAME="$PIA_USERNAME"

# your desired endpoint location
LOC="$LOC"

# the name of the network interface (default: pia)
# PIA_INTERFACE="$PIA_INTERFACE"

# wireguard client-side private key (new key generated every invocation if not specified)
CLIENT_PRIVATE_KEY="$CLIENT_PRIVATE_KEY"

# if PORTFORWARD is set, pia-wg will only connect to port-forward capable servers, and will invoke pia-portforward.sh after connection
# PORTFORWARD="literally anything"

# If you have an existing routing table that only contains routes for hardware interfaces, specify it here
# this will allow pia-wg to hop endpoints without requiring you to disconnect first
# HARDWARE_ROUTE_TABLE="hardlinks"

# If you have daemons that you want to force to only use the VPN and already have a routing table for this purpose, specify it here
# pia-wg will add a default route via the PIA VPN link to that table for you
# VPNONLY_ROUTE_TABLE="vpnonly"
ENDCONFIG
	echo "Config saved"
fi

# fetch data-new.json if missing
if ! [ -r "$DATAFILE_NEW" ]
then
	echo "Fetching new generation server list from PIA"
	curl --max-time 15 'https://serverlist.piaservers.net/vpninfo/servers/new' -o "$DATAFILE_NEW.temp" || exit 1
	if [ "$(jq '.regions | map_values(select(.servers.wg)) | keys' "$DATAFILE_NEW.temp" 2>/dev/null | wc -l)" -le 30 ]
	then
		echo "Bad serverlist retrieved to $DATAFILE_NEW.temp, exiting"
		echo "You can try again if there was a transient error"
		exit 1
	else
		jq -cM '.' "$DATAFILE_NEW.temp" > "$DATAFILE_NEW" 2>/dev/null
	fi
fi

if ! [ -r "$PIA_CERT" ]
then
	echo "Fetching PIA self-signed cert from github"
	curl --max-time 15 'https://raw.githubusercontent.com/pia-foss/desktop/master/daemon/res/ca/rsa_4096.crt' > "$PIA_CERT" || exit 1
fi

if [ -n "$OPT_RECONNECT" ]
then
	rm "$CONNCACHE" "$REMOTEINFO"
fi

if [ -r "$CONNCACHE" ]
then
	WG_NAME="$(jq -r ".name" "$CONNCACHE")"
	WG_DNS="$(jq -r ".dns"  "$CONNCACHE")"

	WG_HOST="$(jq -r ".servers.wg[0].ip"     "$CONNCACHE")"
	WG_CN="$(jq -r ".servers.wg[0].cn"     "$CONNCACHE")"
	WG_PORT="$(jq -r '.groups.wg[0].ports[]' "$DATAFILE_NEW" | sort -r | head -n1)"

	WG_SN="$(cut -d. -f1 <<< "$WG_DNS")"
fi

if [ -z "$WG_HOST" ] || [ -z "$WG_CN" ] || [ -z "$WG_PORT" ]
then
	if [ "$(jq -r ".regions | .[] | select(.id == \"$LOC\")" "$DATAFILE_NEW")" == "" ]
	then
		LOC=$(jq -r '.regions | .[] | select(.id | test("^'"$LOC"'")) '${PORTFORWARD:+'| select(.port_forward) '}'| .id' "$DATAFILE_NEW" | shuf -n 1)
	fi

	if [ "$(jq -r ".regions | .[] | select(.id == \"$LOC\")" "$DATAFILE_NEW")" == "" ]
	then
		echo "Location $LOC not found!"
		echo "Options are:"
	# 	jq '.regions | .[] | .id' "$DATAFILE_NEW" | sort | sed -e 's/^/ * /'
		(
			echo "${BOLD}Location${TAB}Region${TAB}Port Forward${TAB}Geolocated${NORMAL}"
			echo "----------------${TAB}------------------${TAB}------------${TAB}----------"
			jq -r '.regions | .[] | '${PORTFORWARD:+'| select(.port_forward)'}' [.id, .name, .port_forward, .geo] | "'$'\e''[1m\(.[0])'$'\e''[0m\t\(.[1])\t\(.[2])\t\(.[3])"' "$DATAFILE_NEW"
		) | column -t -s "${TAB}"
		echo "${PORTFORWARD:+'Note: only port-forwarding regions displayed'}"
		echo "Please edit $CONFIG and change your desired location, then try again"
		exit 1
	fi

	jq -r ".regions | .[] | select(.id == \"$LOC\")" "$DATAFILE_NEW" > "$CONNCACHE"

	WG_NAME="$(jq -r ".name" "$CONNCACHE")"
	WG_DNS="$(jq -r ".dns"  "$CONNCACHE")"

	WG_HOST="$(jq -r ".servers.wg[0].ip"     "$CONNCACHE")"
	WG_CN="$(jq -r ".servers.wg[0].cn"     "$CONNCACHE")"
	WG_PORT="$(jq -r '.groups.wg[0].ports[]' "$DATAFILE_NEW" | sort -r | head -n1)"

	WG_SN="$(cut -d. -f1 <<< "$WG_DNS")"
fi

if [ -z "$WG_HOST$WG_PORT" ]; then
  echo "no wg region, exiting"
  exit 1
fi

if ! [ -r "$REMOTEINFO" ]
then
	if [ -z "$TOK" ]
	then
		if [ -z "$PIA_UESRNAME" ] || [ -z "$PASS" ]
		then
			echo "A new auth token is required."
		fi
		if [ -z "$PIA_USERNAME" ]
		then
			read -p "Please enter your privateinternetaccess.com username: " PIA_USERNAME
			[ -z "$PIA_USERNAME" ] && exit 1
		fi
		if [ -z "$PASS" ]
		then
			echo "Your password will NOT be saved."
			read -p "Please enter your privateinternetaccess.com password for $PIA_USERNAME: " -s PASS
			[ -z "$PASS" ] && exit 1
		fi
		TOK=$(curl -X POST \
		-H "Content-Type: application/json" \
		-d "{\"username\":\"$PIA_USERNAME\",\"password\":\"$PASS\"}" \
		"https://www.privateinternetaccess.com/api/client/v2/token" | jq -r '.token')

		# echo "got token: $TOK"

		if [ -z "$TOK" ]; then
			echo "Failed to authenticate with privateinternetaccess"
			echo "Check your user/pass and try again"
			exit 1
		fi

		touch "$TOKENFILE"
		chmod 600 "$TOKENFILE"
		echo "$TOK" > "$TOKENFILE"

		echo "Functional DNS is no longer required."
		echo "If you're setting up in a region with heavy internet restrictions, you can disable your alternate VPN or connection method now"
	fi

	echo "Registering public key with ${BOLD}$WG_NAME $WG_HOST${NORMAL}"
	[ "$EUID" -eq 0 ] && [ -z "$OPT_CONFIGONLY" ] && ip rule add to "$WG_HOST" lookup china pref 10

	if ! curl -GsS \
	--max-time 5 \
	--data-urlencode "pubkey=$CLIENT_PUBLIC_KEY" \
	--data-urlencode "pt=$TOK" \
	--cacert "$PIA_CERT" \
	--resolve "$WG_CN:$WG_PORT:$WG_HOST" \
	"https://$WG_CN:$WG_PORT/addKey" > "$REMOTEINFO.temp"
	then
		echo "Registering with $WG_CN failed, trying $WG_DNS"
		# fall back to trying DNS certificate if CN fails
		# /u/dean_oz reported that this works better for them at https://www.reddit.com/r/PrivateInternetAccess/comments/h9y4da/is_there_any_way_to_generate_wireguard_config/fyfqjf7/
		# in testing I find that sometimes one works, sometimes the other works
		if ! curl -GsS \
		--max-time 5 \
		--data-urlencode "pubkey=$CLIENT_PUBLIC_KEY" \
		--data-urlencode "pt=$TOK" \
		--cacert "$PIA_CERT" \
		--resolve "$WG_DNS:$WG_PORT:$WG_HOST" \
		"https://$WG_DNS:$WG_PORT/addKey" > "$REMOTEINFO.temp"
		then
			echo "Failed to register key with $WG_SN ($WG_HOST)"
			if ! [ -e "/sys/class/net/$PIA_INTERFACE" ]
			then
				echo "If you're trying to change hosts because your link has stopped working,"
				echo "  you may need to ${BOLD}ip link del dev $PIA_INTERFACE${NORMAL} and try this script again"
			fi
			exit 1
		fi
	fi

	if [ "$(jq -r .status "$REMOTEINFO.temp")" != "OK" ]
	then
		echo "WG key registration failed - bad token?"
		echo "If you see an auth error, consider deleting $TOKENFILE and getting a new token"
		exit 1
	fi

	mv  "$REMOTEINFO.temp" \
		"$REMOTEINFO"
fi

PEER_IP="$(jq -r .peer_ip "$REMOTEINFO")"
SERVER_PUBLIC_KEY="$(jq -r .server_key  "$REMOTEINFO")"
SERVER_IP="$(jq -r .server_ip "$REMOTEINFO")"
SERVER_PORT="$(jq -r .server_port "$REMOTEINFO")"
SERVER_VIP="$(jq -r .server_vip "$REMOTEINFO")"

if [ -n "$OPT_CONFIGONLY" ]
then
	cat > "$WGCONF" <<ENDWG
	[Interface]
	PrivateKey = $CLIENT_PRIVATE_KEY
	Address    = $PEER_IP
	DNS        = $(jq -r '.dns_servers[0:2]' "$REMOTEINFO" | grep ^\  | cut -d\" -f2 | xargs echo | sed -e 's/ /,/g')

	[Peer]
	PublicKey  = $SERVER_PUBLIC_KEY
	AllowedIPs = 0.0.0.0/0, ::/0
	Endpoint   = $SERVER_IP:$SERVER_PORT
ENDWG

	echo
	echo "$WGCONF generated"
	echo
	if which qrencode &>/dev/null
	then
		qrencode -t ansiutf8 < "$WGCONF"
	fi
	echo
	cat "$WGCONF"
	exit 0
fi

if ! ip route show table $HARDWARE_ROUTE_TABLE 2>/dev/null | grep -q .
then
	ROUTES_ADD=$(
		for IF in $(ip link show | grep -B1 'link/ether' | grep '^[0-9]' | cut -d: -f2)
		do
			ip route show | grep "dev $IF" | sed -e 's/linkdown//' | sed -e "s/^/ip route add table $HARDWARE_ROUTE_TABLE /"
		done
	)
	if [ "$EUID" -eq 0 ]
	then
		echo "Build a routing table with only hardware links to stop wireguard packets going back through the VPN:"
		echo sudo sh '<<<' "$ROUTES_ADD"
		sudo sh <<< "$ROUTES_ADD"
	else
		sh <<< "$ROUTES_ADD"
	fi
	echo "Table $HARDWARE_ROUTE_TABLE (hardware network links) now contains:"
	ip route show table $HARDWARE_ROUTE_TABLE | sed -e "s/^/${TAB}/"
	echo
	echo "${BOLD}*** PLEASE NOTE: if this table isn't updated by your network post-connect hooks, your connection cannot remain up if your network links change${NORMAL}"
fi

# echo "Bringing up wireguard interface $PIA_INTERFACE... "
if [ "$EUID" -eq 0 ]
then
	# scratch current config if any
	# put new settings into existing interface instead of teardown/re-up to prevent leaks
	if ip link list "$PIA_INTERFACE" > /dev/null
	then
		echo "Updating existing interface '$PIA_INTERFACE'"

		OLD_PEER_IP="$(ip -j addr show dev pia | jq -r '.[].addr_info[].local')"
		OLD_KEY="$(echo $(wg showconf "$PIA_INTERFACE" | grep ^PublicKey | cut -d= -f2-))"
		OLD_ENDPOINT="$(wg show "$PIA_INTERFACE" endpoints | grep "$OLD_KEY" | cut "-d${TAB}" -f2 | cut -d: -f1)"

		# Note: unnecessary if Table != off above, but doesn't hurt.
		# ensure we don't get a packet storm loop
		ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10

		if [ "$OLD_KEY" != "$SERVER_PUBLIC_KEY" ]
		then
			echo "    [Change Peer from $OLD_KEY to $SERVER_PUBLIC_KEY]"
			wg set "$PIA_INTERFACE" fwmark 51820 private-key <(echo "$CLIENT_PRIVATE_KEY") peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0" || exit 1
			# remove old key
			wg set "$PIA_INTERFACE" peer "$OLD_KEY" remove
		fi

		if [ "$PEER_IP" != "$OLD_PEER_IP/32" ]
		then
			echo "    [Change $PIA_INTERFACE ipaddr from $OLD_PEER_IP to $PEER_IP]"
			# update link ip address in case
			ip addr replace "$PEER_IP" dev "$PIA_INTERFACE"
			ip addr del "$OLD_PEER_IP/32" dev "$PIA_INTERFACE"

			# remove old route
			ip rule del to "$OLD_PEER_IP" lookup $HARDWARE_ROUTE_TABLE 2>/dev/null
		fi

		# Note: only if Table = off in wireguard config file above
		ip route add default dev "$PIA_INTERFACE"

		# Specific to my setup
		ip route add default table $VPNONLY_ROUTE_TABLE dev "$PIA_INTERFACE"
	else
		echo "Bringing up interface '$PIA_INTERFACE'"

		# Note: unnecessary if Table != off above, but doesn't hurt.
		ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10

		# bring up wireguard interface
		ip link add "$PIA_INTERFACE" type wireguard || exit 1
		ip link set dev "$PIA_INTERFACE" up || exit 1
		wg set "$PIA_INTERFACE" fwmark 51820 private-key <(echo "$CLIENT_PRIVATE_KEY") peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0" || exit 1
		ip addr replace "$PEER_IP" dev "$PIA_INTERFACE" || exit 1

		# Note: only if Table = off in wireguard config file above
		ip route add default dev "$PIA_INTERFACE"

		# Specific to my setup
		ip route add default table $VPNONLY_ROUTE_TABLE dev "$PIA_INTERFACE"

	fi
else
	echo ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10
	sudo ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10

	if ! ip link list "$PIA_INTERFACE" > /dev/null
	then
		echo ip link add "$PIA_INTERFACE" type wireguard
		sudo ip link add "$PIA_INTERFACE" type wireguard
	fi

	echo wg set "$PIA_INTERFACE" fwmark 51820 private-key "$CLIENT_PRIVATE_KEY"         peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0"
	sudo wg set "$PIA_INTERFACE" fwmark 51820 private-key <(echo "$CLIENT_PRIVATE_KEY") peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0"

	echo ip addr replace "$PEER_IP" dev "$PIA_INTERFACE"
	sudo ip addr replace "$PEER_IP" dev "$PIA_INTERFACE"

	if ip link list $PIA_INTERFACE > /dev/null
	then
		OLD_PEER_IP="$(ip -j addr show dev pia | jq '.[].addr_info[].local')"
		OLD_KEY="$(echo $(wg showconf "$PIA_INTERFACE" | grep ^PublicKey | cut -d= -f2))"
		OLD_ENDPOINT="$(wg show "$PIA_INTERFACE" endpoints | grep "$OLD_KEY" | cut "-d${TAB}" -f2 | cut -d: -f1)"

		echo wg set "$PIA_INTERFACE" peer "$OLD_KEY" remove
		sudo wg set "$PIA_INTERFACE" peer "$OLD_KEY" remove
	fi

	echo ip route add default dev "$PIA_INTERFACE"
	sudo ip route add default dev "$PIA_INTERFACE"
fi

echo "PIA Wireguard '$PIA_INTERFACE' configured successfully"

TRIES=0
echo -n "Waiting for connection to stabilise..."
while ! ping -n -c1 -w 5 -s 1280 -I "$PIA_INTERFACE" "$SERVER_VIP" &>/dev/null
do
	echo -n "."
	TRIES=$(( $TRIES + 1 ))
	if [[ $TRIES -ge 20 ]]
	then
		echo "Connection failed to stabilise, try again"
		exit 1
	fi
	sleep 0.5 # so we can catch ctrl+c
done
echo " OK"

if find "$DATAFILE_NEW" -mtime -3 -exec false {} +
then
	echo "PIA endpoint list is stale, Fetching new generation wireguard server list"

	echo curl --max-time 15 --interface "$PIA_INTERFACE" --CAcert "$PIA_CERT" --resolve "$WG_CN:443:10.0.0.1" "https://$WG_CN:443/vpninfo/servers/v4"
	# curl 'https://serverlist.piaservers.net/vpninfo/servers/new' > "$DATAFILE_NEW.temp" || exit 1
	curl --max-time 15 --interface "$PIA_INTERFACE" --CAcert "$PIA_CERT" --resolve "$WG_CN:443:10.0.0.1" "https://$WG_CN:443/vpninfo/servers/v4" > "$DATAFILE_NEW.temp" ||
	curl --max-time 15 'https://serverlist.piaservers.net/vpninfo/servers/new' > "$DATAFILE_NEW.temp" ||
	exit 0

	if [ "$(jq '.regions | map_values(select(.servers.wg)) | keys' "$DATAFILE_NEW.temp" 2>/dev/null | wc -l)" -le 30 ]
	then
		echo "Bad serverlist retrieved to $DATAFILE_NEW.temp, exiting"
		echo "You can try again if there was a transient error"
		exit 1
	else
		jq -cM '.' "$DATAFILE_NEW.temp" > "$DATAFILE_NEW" 2>/dev/null
	fi
fi

if [ -n "$PORTFORWARD" ]
then
	echo "Requesting forwarded port..."
	if which pia-portforward.sh &>/dev/null
	then
		pia-portforward.sh
	else
		if [ -r "${0%/*}/pia-portforward.sh" ]
		then
			"${0%/*}/pia-portforward.sh"
		else
			echo "pia-portforward.sh couldn't be found!"
			exit 1
		fi
	fi
	echo "Note: pia-portforward.sh should be called every ~5 minutes to maintain your forward."
	echo "You could try:"
	echo "    while sleep 5m; do pia-portforward.sh; done"
	echo "or alternately add a cronjob with crontab -e"
fi

exit 0
	#!/sbin/openrc-run

	command="/root/bin/pia-wg.sh"

	CONFIGDIR="${CONFIGDIR:-/var/cache/pia-wg}"
	CONFIG="${CONFIG:-/etc/pia-wg/pia-wg.conf}"

	extra_started_commands="reload"

	depend() {
	need net sysfs
	after modules ip-rules
	use logger
	}

	start_pre() {
	if ! [ -e "$CONFIG" ]
	then
	echo "Please generate a config with pia-wg.sh and copy it to $CONFIG"
	return 1
	fi
	if ! [ -w "$CONFIGDIR" ] \|\| ! [ -d "$CONFIGDIR" ]
	then
	echo "$CONFIGDIR is not a writable directory"
	return 1
	fi
	return 0
	}

	start() {
	(
	export CONFIGDIR="$CONFIGDIR"
	export CONFIG="$CONFIG"
	while "$command" "$@" 2>&1 \| tee /var/log/pia-wg.log && [ ${PIPESTATUS[0]} -ne 0 ]
	do
	ewarn "Failed, retrying"
	sleep 1
	done
	einfo "OK"
	);
	return 0
	}

	reload() {
	start -n
	}

	restart() {
	stop
	start
	}

	stop() {
	source "$CONFIG"
	ip link del "${PIA_INTERFACE:-pia}"
	}
	#!/bin/bash

	PIA_CONFIG="$(dirname "$(realpath "$(which "$0")")")/pia-config.sh"

	if ! [ -r "$PIA_CONFIG" ]
	then
	echo "Can't find pia-config.sh at $PIA_CONFIG - if you've symlinked pia-wg.sh, please also symlink that file"
	EXIT=1
	fi

	[ -n "$EXIT" ] && exit 1

	source "$PIA_CONFIG"

	SERVER_VIP="$(jq -r .server_vip "$REMOTEINFO")"

	ping -I$PIA_INTERFACE -n -w5 -W0.5 -c5 "$SERVER_VIP"
	#!/bin/bash

	if [ -t 1 ]
	then
	BOLD=$'\e[1m'
	NORMAL=$'\e[0m'
	fi
	TAB=$'\t'

	if [ -z "$CONFIGDIR" ]
	then
	if [ $EUID -eq 0 ]
	then
	CONFIGDIR="/var/cache/pia-wg"
	else
	CONFIGDIR="$HOME/.config/pia-wg"
	fi
	mkdir -p "$CONFIGDIR"
	fi

	if [ -z "$CONFIG" ]
	then
	if [ $EUID -eq 0 ]
	then
	CONFIG="/etc/pia-wg/pia-wg.conf"
	else
	CONFIG="$CONFIGDIR/pia-wg.conf"
	fi
	fi

	if [ -r "$CONFIG" ]
	then
	source "$CONFIG"
	fi

	if [ -z "$CLIENT_PRIVATE_KEY" ]
	then
	echo "Generating new private key"
	CLIENT_PRIVATE_KEY="$(wg genkey)"
	fi

	if [ -z "$CLIENT_PUBLIC_KEY" ]
	then
	CLIENT_PUBLIC_KEY=$(wg pubkey <<< "$CLIENT_PRIVATE_KEY")
	fi

	if [ -z "$CLIENT_PUBLIC_KEY" ]
	then
	echo "Failed to generate client public key, check your config!"
	exit 1
	fi

	if [ -z "$LOC" ]
	then
	echo "Setting default location: ${BOLD}any${NORMAL}"
	LOC="."
	fi

	if [ -z "$PIA_INTERFACE" ]
	then
	echo "Setting default wireguard interface name: ${BOLD}pia${NORMAL}"
	PIA_INTERFACE="pia"
	fi

	if [ -z "$WGCONF" ]
	then
	WGCONF="$CONFIGDIR/${PIA_INTERFACE}.conf"
	fi

	if [ -z "$PIA_CERT" ]
	then
	PIA_CERT="$CONFIGDIR/rsa_4096.crt"
	fi

	if [ -z "$TOKENFILE" ]
	then
	TOKENFILE="$CONFIGDIR/token"
	fi

	if [ -z "$TOK" ] && [ -r "$TOKENFILE" ]
	then
	TOK=$(< "$TOKENFILE")
	fi

	if [ -z "$DATAFILE" ]
	then
	DATAFILE="$CONFIGDIR/data.json"
	fi

	if [ -z "$DATAFILE_NEW" ]
	then
	DATAFILE_NEW="$CONFIGDIR/data_new.json"
	fi

	if [ -z "$REMOTEINFO" ]
	then
	REMOTEINFO="$CONFIGDIR/remote.info"
	fi

	if [ -z "$CONNCACHE" ]
	then
	CONNCACHE="$CONFIGDIR/cache.json"
	fi

	if [ -z "$HARDWARE_ROUTE_TABLE" ]
	then
	# 0xca6c
	HARDWARE_ROUTE_TABLE=51820
	fi

	if [ -z "$VPNONLY_ROUTE_TABLE" ]
	then
	# 0xca6d
	VPNONLY_ROUTE_TABLE=51821
	fi

	if [ -z "$PF_SIGFILE" ]
	then
	PF_SIGFILE="$CONFIGDIR/pf-sig"
	fi

	if [ -z "$PF_BINDFILE" ]
	then
	PF_BINDFILE="$CONFIGDIR/pf-bind"
	fi
	#!/bin/bash

	# original script posted by tpretz at https://www.reddit.com/r/PrivateInternetAccess/comments/g08ojr/is_wireguard_available_yet/fnvs20c/
	# and at https://gist.github.com/tpretz/5ea1226517d95361f063f621e45de0a6
	#
	# significantly modified by Triffid_Hunter
	#
	# Improved with suggestions from Threarah at https://www.reddit.com/r/PrivateInternetAccess/comments/h9y4da/is_there_any_way_to_generate_wireguard_config/fv3cgi9/
	#
	# After the first run to fetch various data files and an auth token, this script does not require the ability to DNS resolve privateinternetaccess.com

	while [ -n "$1" ]
	do
	case "$1" in
	"-r")
	shift
	OPT_RECONNECT=1
	;;
	"-c")
	shift
	OPT_CONFIGONLY=1
	;;
	"-h")
	shift
	OPT_SHOWHELP=1
	;;
	*)
	echo "Unrecognized option: $1"
	shift
	OPT_SHOWHELP=1
	;;
	esac
	done

	if [ -n "$OPT_SHOWHELP" ]
	then
	echo
	echo "USAGE: $(basename "$0") [-r] [-c]"
	echo
	echo " -r Force reconnection even if a cached link is available"
	echo
	echo " -c Config only - generate a WireGuard config but do not apply it to this system"
	echo
	exit 1
	fi

	if ! which curl &>/dev/null
	then
	echo "The 'curl' utility is required"
	echo " Most package managers should have a 'curl' package available"
	EXIT=1
	fi

	if ! which jq &>/dev/null
	then
	echo "The 'jq' utility is required"
	echo " Most package managers should have a 'jq' package available"
	EXIT=1
	fi

	if [ -z "$OPT_CONFIGONLY" ]
	then
	if ! which ip &>/dev/null
	then
	echo "The 'ip' utility from iproute2 is needed to apply configs to this machine"
	echo " Most package managers should have a 'iproute2' package available"
	EXIT2=1
	fi

	if ! which wg &>/dev/null
	then
	echo "The 'wg' utility from wireguard-tools is needed to apply configs to this machine"
	echo " Most package managers should have a 'wireguard-tools' package available"
	EXIT2=1
	fi
	if [ -n "$EXIT2" ]
	then
	echo
	echo "You can use the -c option if you wish to only generate a config"
	fi
	EXIT="${EXIT}${EXIT2}"
	fi

	PIA_CONFIG="$(dirname "$(realpath "$(which "$0")")")/pia-config.sh"

	if ! [ -r "$PIA_CONFIG" ]
	then
	echo "Can't find pia-config.sh at $PIA_CONFIG - if you've symlinked pia-wg.sh, please also symlink that file"
	EXIT=1
	fi

	[ -n "$EXIT" ] && exit 1

	source "$PIA_CONFIG"

	# if [ -z "$TOK" ] && ([ -z "$PIA_USERNAME" ] \|\| [ -z "$PASS" ])
	if ! [ -r "$CONFIG" ]
	then
	echo "Cannot read '$CONFIG', generating a default one"
	if [ -z "$PIA_USERNAME" ]
	then
	read -p "Please enter your privateinternetaccess.com username: " PIA_USERNAME
	fi
	cat <<ENDCONFIG > "$CONFIG"
	# your privateinternetaccess.com username (not needed if you already have an auth token)
	PIA_USERNAME="$PIA_USERNAME"

	# your desired endpoint location
	LOC="$LOC"

	# the name of the network interface (default: pia)
	# PIA_INTERFACE="$PIA_INTERFACE"

	# wireguard client-side private key (new key generated every invocation if not specified)
	CLIENT_PRIVATE_KEY="$CLIENT_PRIVATE_KEY"

	# if PORTFORWARD is set, pia-wg will only connect to port-forward capable servers, and will invoke pia-portforward.sh after connection
	# PORTFORWARD="literally anything"

	# If you have an existing routing table that only contains routes for hardware interfaces, specify it here
	# this will allow pia-wg to hop endpoints without requiring you to disconnect first
	# HARDWARE_ROUTE_TABLE="hardlinks"

	# If you have daemons that you want to force to only use the VPN and already have a routing table for this purpose, specify it here
	# pia-wg will add a default route via the PIA VPN link to that table for you
	# VPNONLY_ROUTE_TABLE="vpnonly"
	ENDCONFIG
	echo "Config saved"
	fi

	# fetch data-new.json if missing
	if ! [ -r "$DATAFILE_NEW" ]
	then
	echo "Fetching new generation server list from PIA"
	curl --max-time 15 'https://serverlist.piaservers.net/vpninfo/servers/new' -o "$DATAFILE_NEW.temp" \|\| exit 1
	if [ "$(jq '.regions \| map_values(select(.servers.wg)) \| keys' "$DATAFILE_NEW.temp" 2>/dev/null \| wc -l)" -le 30 ]
	then
	echo "Bad serverlist retrieved to $DATAFILE_NEW.temp, exiting"
	echo "You can try again if there was a transient error"
	exit 1
	else
	jq -cM '.' "$DATAFILE_NEW.temp" > "$DATAFILE_NEW" 2>/dev/null
	fi
	fi

	if ! [ -r "$PIA_CERT" ]
	then
	echo "Fetching PIA self-signed cert from github"
	curl --max-time 15 'https://raw.githubusercontent.com/pia-foss/desktop/master/daemon/res/ca/rsa_4096.crt' > "$PIA_CERT" \|\| exit 1
	fi

	if [ -n "$OPT_RECONNECT" ]
	then
	rm "$CONNCACHE" "$REMOTEINFO"
	fi

	if [ -r "$CONNCACHE" ]
	then
	WG_NAME="$(jq -r ".name" "$CONNCACHE")"
	WG_DNS="$(jq -r ".dns" "$CONNCACHE")"

	WG_HOST="$(jq -r ".servers.wg[0].ip" "$CONNCACHE")"
	WG_CN="$(jq -r ".servers.wg[0].cn" "$CONNCACHE")"
	WG_PORT="$(jq -r '.groups.wg[0].ports[]' "$DATAFILE_NEW" \| sort -r \| head -n1)"

	WG_SN="$(cut -d. -f1 <<< "$WG_DNS")"
	fi

	if [ -z "$WG_HOST" ] \|\| [ -z "$WG_CN" ] \|\| [ -z "$WG_PORT" ]
	then
	if [ "$(jq -r ".regions \| .[] \| select(.id == \"$LOC\")" "$DATAFILE_NEW")" == "" ]
	then
	LOC=$(jq -r '.regions \| .[] \| select(.id \| test("^'"$LOC"'")) '${PORTFORWARD:+'\| select(.port_forward) '}'\| .id' "$DATAFILE_NEW" \| shuf -n 1)
	fi

	if [ "$(jq -r ".regions \| .[] \| select(.id == \"$LOC\")" "$DATAFILE_NEW")" == "" ]
	then
	echo "Location $LOC not found!"
	echo "Options are:"
	# jq '.regions \| .[] \| .id' "$DATAFILE_NEW" \| sort \| sed -e 's/^/ * /'
	(
	echo "${BOLD}Location${TAB}Region${TAB}Port Forward${TAB}Geolocated${NORMAL}"
	echo "----------------${TAB}------------------${TAB}------------${TAB}----------"
	jq -r '.regions \| .[] \| '${PORTFORWARD:+'\| select(.port_forward)'}' [.id, .name, .port_forward, .geo] \| "'$'\e''[1m\(.[0])'$'\e''[0m\t\(.[1])\t\(.[2])\t\(.[3])"' "$DATAFILE_NEW"
	) \| column -t -s "${TAB}"
	echo "${PORTFORWARD:+'Note: only port-forwarding regions displayed'}"
	echo "Please edit $CONFIG and change your desired location, then try again"
	exit 1
	fi

	jq -r ".regions \| .[] \| select(.id == \"$LOC\")" "$DATAFILE_NEW" > "$CONNCACHE"

	WG_NAME="$(jq -r ".name" "$CONNCACHE")"
	WG_DNS="$(jq -r ".dns" "$CONNCACHE")"

	WG_HOST="$(jq -r ".servers.wg[0].ip" "$CONNCACHE")"
	WG_CN="$(jq -r ".servers.wg[0].cn" "$CONNCACHE")"
	WG_PORT="$(jq -r '.groups.wg[0].ports[]' "$DATAFILE_NEW" \| sort -r \| head -n1)"

	WG_SN="$(cut -d. -f1 <<< "$WG_DNS")"
	fi

	if [ -z "$WG_HOST$WG_PORT" ]; then
	echo "no wg region, exiting"
	exit 1
	fi

	if ! [ -r "$REMOTEINFO" ]
	then
	if [ -z "$TOK" ]
	then
	if [ -z "$PIA_UESRNAME" ] \|\| [ -z "$PASS" ]
	then
	echo "A new auth token is required."
	fi
	if [ -z "$PIA_USERNAME" ]
	then
	read -p "Please enter your privateinternetaccess.com username: " PIA_USERNAME
	[ -z "$PIA_USERNAME" ] && exit 1
	fi
	if [ -z "$PASS" ]
	then
	echo "Your password will NOT be saved."
	read -p "Please enter your privateinternetaccess.com password for $PIA_USERNAME: " -s PASS
	[ -z "$PASS" ] && exit 1
	fi
	TOK=$(curl -X POST \
	-H "Content-Type: application/json" \
	-d "{\"username\":\"$PIA_USERNAME\",\"password\":\"$PASS\"}" \
	"https://www.privateinternetaccess.com/api/client/v2/token" \| jq -r '.token')

	# echo "got token: $TOK"

	if [ -z "$TOK" ]; then
	echo "Failed to authenticate with privateinternetaccess"
	echo "Check your user/pass and try again"
	exit 1
	fi

	touch "$TOKENFILE"
	chmod 600 "$TOKENFILE"
	echo "$TOK" > "$TOKENFILE"

	echo "Functional DNS is no longer required."
	echo "If you're setting up in a region with heavy internet restrictions, you can disable your alternate VPN or connection method now"
	fi

	echo "Registering public key with ${BOLD}$WG_NAME $WG_HOST${NORMAL}"
	[ "$EUID" -eq 0 ] && [ -z "$OPT_CONFIGONLY" ] && ip rule add to "$WG_HOST" lookup china pref 10

	if ! curl -GsS \
	--max-time 5 \
	--data-urlencode "pubkey=$CLIENT_PUBLIC_KEY" \
	--data-urlencode "pt=$TOK" \
	--cacert "$PIA_CERT" \
	--resolve "$WG_CN:$WG_PORT:$WG_HOST" \
	"https://$WG_CN:$WG_PORT/addKey" > "$REMOTEINFO.temp"
	then
	echo "Registering with $WG_CN failed, trying $WG_DNS"
	# fall back to trying DNS certificate if CN fails
	# /u/dean_oz reported that this works better for them at https://www.reddit.com/r/PrivateInternetAccess/comments/h9y4da/is_there_any_way_to_generate_wireguard_config/fyfqjf7/
	# in testing I find that sometimes one works, sometimes the other works
	if ! curl -GsS \
	--max-time 5 \
	--data-urlencode "pubkey=$CLIENT_PUBLIC_KEY" \
	--data-urlencode "pt=$TOK" \
	--cacert "$PIA_CERT" \
	--resolve "$WG_DNS:$WG_PORT:$WG_HOST" \
	"https://$WG_DNS:$WG_PORT/addKey" > "$REMOTEINFO.temp"
	then
	echo "Failed to register key with $WG_SN ($WG_HOST)"
	if ! [ -e "/sys/class/net/$PIA_INTERFACE" ]
	then
	echo "If you're trying to change hosts because your link has stopped working,"
	echo " you may need to ${BOLD}ip link del dev $PIA_INTERFACE${NORMAL} and try this script again"
	fi
	exit 1
	fi
	fi

	if [ "$(jq -r .status "$REMOTEINFO.temp")" != "OK" ]
	then
	echo "WG key registration failed - bad token?"
	echo "If you see an auth error, consider deleting $TOKENFILE and getting a new token"
	exit 1
	fi

	mv "$REMOTEINFO.temp" \
	"$REMOTEINFO"
	fi

	PEER_IP="$(jq -r .peer_ip "$REMOTEINFO")"
	SERVER_PUBLIC_KEY="$(jq -r .server_key "$REMOTEINFO")"
	SERVER_IP="$(jq -r .server_ip "$REMOTEINFO")"
	SERVER_PORT="$(jq -r .server_port "$REMOTEINFO")"
	SERVER_VIP="$(jq -r .server_vip "$REMOTEINFO")"

	if [ -n "$OPT_CONFIGONLY" ]
	then
	cat > "$WGCONF" <<ENDWG
	[Interface]
	PrivateKey = $CLIENT_PRIVATE_KEY
	Address = $PEER_IP
	DNS = $(jq -r '.dns_servers[0:2]' "$REMOTEINFO" \| grep ^\ \| cut -d\" -f2 \| xargs echo \| sed -e 's/ /,/g')

	[Peer]
	PublicKey = $SERVER_PUBLIC_KEY
	AllowedIPs = 0.0.0.0/0, ::/0
	Endpoint = $SERVER_IP:$SERVER_PORT
	ENDWG

	echo
	echo "$WGCONF generated"
	echo
	if which qrencode &>/dev/null
	then
	qrencode -t ansiutf8 < "$WGCONF"
	fi
	echo
	cat "$WGCONF"
	exit 0
	fi

	if ! ip route show table $HARDWARE_ROUTE_TABLE 2>/dev/null \| grep -q .
	then
	ROUTES_ADD=$(
	for IF in $(ip link show \| grep -B1 'link/ether' \| grep '^[0-9]' \| cut -d: -f2)
	do
	ip route show \| grep "dev $IF" \| sed -e 's/linkdown//' \| sed -e "s/^/ip route add table $HARDWARE_ROUTE_TABLE /"
	done
	)
	if [ "$EUID" -eq 0 ]
	then
	echo "Build a routing table with only hardware links to stop wireguard packets going back through the VPN:"
	echo sudo sh '<<<' "$ROUTES_ADD"
	sudo sh <<< "$ROUTES_ADD"
	else
	sh <<< "$ROUTES_ADD"
	fi
	echo "Table $HARDWARE_ROUTE_TABLE (hardware network links) now contains:"
	ip route show table $HARDWARE_ROUTE_TABLE \| sed -e "s/^/${TAB}/"
	echo
	echo "${BOLD}*** PLEASE NOTE: if this table isn't updated by your network post-connect hooks, your connection cannot remain up if your network links change${NORMAL}"
	fi

	# echo "Bringing up wireguard interface $PIA_INTERFACE... "
	if [ "$EUID" -eq 0 ]
	then
	# scratch current config if any
	# put new settings into existing interface instead of teardown/re-up to prevent leaks
	if ip link list "$PIA_INTERFACE" > /dev/null
	then
	echo "Updating existing interface '$PIA_INTERFACE'"

	OLD_PEER_IP="$(ip -j addr show dev pia \| jq -r '.[].addr_info[].local')"
	OLD_KEY="$(echo $(wg showconf "$PIA_INTERFACE" \| grep ^PublicKey \| cut -d= -f2-))"
	OLD_ENDPOINT="$(wg show "$PIA_INTERFACE" endpoints \| grep "$OLD_KEY" \| cut "-d${TAB}" -f2 \| cut -d: -f1)"

	# Note: unnecessary if Table != off above, but doesn't hurt.
	# ensure we don't get a packet storm loop
	ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10

	if [ "$OLD_KEY" != "$SERVER_PUBLIC_KEY" ]
	then
	echo " [Change Peer from $OLD_KEY to $SERVER_PUBLIC_KEY]"
	wg set "$PIA_INTERFACE" fwmark 51820 private-key <(echo "$CLIENT_PRIVATE_KEY") peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0" \|\| exit 1
	# remove old key
	wg set "$PIA_INTERFACE" peer "$OLD_KEY" remove
	fi

	if [ "$PEER_IP" != "$OLD_PEER_IP/32" ]
	then
	echo " [Change $PIA_INTERFACE ipaddr from $OLD_PEER_IP to $PEER_IP]"
	# update link ip address in case
	ip addr replace "$PEER_IP" dev "$PIA_INTERFACE"
	ip addr del "$OLD_PEER_IP/32" dev "$PIA_INTERFACE"

	# remove old route
	ip rule del to "$OLD_PEER_IP" lookup $HARDWARE_ROUTE_TABLE 2>/dev/null
	fi

	# Note: only if Table = off in wireguard config file above
	ip route add default dev "$PIA_INTERFACE"

	# Specific to my setup
	ip route add default table $VPNONLY_ROUTE_TABLE dev "$PIA_INTERFACE"
	else
	echo "Bringing up interface '$PIA_INTERFACE'"

	# Note: unnecessary if Table != off above, but doesn't hurt.
	ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10

	# bring up wireguard interface
	ip link add "$PIA_INTERFACE" type wireguard \|\| exit 1
	ip link set dev "$PIA_INTERFACE" up \|\| exit 1
	wg set "$PIA_INTERFACE" fwmark 51820 private-key <(echo "$CLIENT_PRIVATE_KEY") peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0" \|\| exit 1
	ip addr replace "$PEER_IP" dev "$PIA_INTERFACE" \|\| exit 1

	# Note: only if Table = off in wireguard config file above
	ip route add default dev "$PIA_INTERFACE"

	# Specific to my setup
	ip route add default table $VPNONLY_ROUTE_TABLE dev "$PIA_INTERFACE"

	fi
	else
	echo ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10
	sudo ip rule add fwmark 51820 lookup $HARDWARE_ROUTE_TABLE pref 10

	if ! ip link list "$PIA_INTERFACE" > /dev/null
	then
	echo ip link add "$PIA_INTERFACE" type wireguard
	sudo ip link add "$PIA_INTERFACE" type wireguard
	fi

	echo wg set "$PIA_INTERFACE" fwmark 51820 private-key "$CLIENT_PRIVATE_KEY" peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0"
	sudo wg set "$PIA_INTERFACE" fwmark 51820 private-key <(echo "$CLIENT_PRIVATE_KEY") peer "$SERVER_PUBLIC_KEY" endpoint "$SERVER_IP:$SERVER_PORT" allowed-ips "0.0.0.0/0,::/0"

	echo ip addr replace "$PEER_IP" dev "$PIA_INTERFACE"
	sudo ip addr replace "$PEER_IP" dev "$PIA_INTERFACE"

	if ip link list $PIA_INTERFACE > /dev/null
	then
	OLD_PEER_IP="$(ip -j addr show dev pia \| jq '.[].addr_info[].local')"
	OLD_KEY="$(echo $(wg showconf "$PIA_INTERFACE" \| grep ^PublicKey \| cut -d= -f2))"
	OLD_ENDPOINT="$(wg show "$PIA_INTERFACE" endpoints \| grep "$OLD_KEY" \| cut "-d${TAB}" -f2 \| cut -d: -f1)"

	echo wg set "$PIA_INTERFACE" peer "$OLD_KEY" remove
	sudo wg set "$PIA_INTERFACE" peer "$OLD_KEY" remove
	fi

	echo ip route add default dev "$PIA_INTERFACE"
	sudo ip route add default dev "$PIA_INTERFACE"
	fi

	echo "PIA Wireguard '$PIA_INTERFACE' configured successfully"

	TRIES=0
	echo -n "Waiting for connection to stabilise..."
	while ! ping -n -c1 -w 5 -s 1280 -I "$PIA_INTERFACE" "$SERVER_VIP" &>/dev/null
	do
	echo -n "."
	TRIES=$(( $TRIES + 1 ))
	if [[ $TRIES -ge 20 ]]
	then
	echo "Connection failed to stabilise, try again"
	exit 1
	fi
	sleep 0.5 # so we can catch ctrl+c
	done
	echo " OK"

	if find "$DATAFILE_NEW" -mtime -3 -exec false {} +
	then
	echo "PIA endpoint list is stale, Fetching new generation wireguard server list"

	echo curl --max-time 15 --interface "$PIA_INTERFACE" --CAcert "$PIA_CERT" --resolve "$WG_CN:443:10.0.0.1" "https://$WG_CN:443/vpninfo/servers/v4"
	# curl 'https://serverlist.piaservers.net/vpninfo/servers/new' > "$DATAFILE_NEW.temp" \|\| exit 1
	curl --max-time 15 --interface "$PIA_INTERFACE" --CAcert "$PIA_CERT" --resolve "$WG_CN:443:10.0.0.1" "https://$WG_CN:443/vpninfo/servers/v4" > "$DATAFILE_NEW.temp" \|\|
	curl --max-time 15 'https://serverlist.piaservers.net/vpninfo/servers/new' > "$DATAFILE_NEW.temp" \|\|
	exit 0

	if [ "$(jq '.regions \| map_values(select(.servers.wg)) \| keys' "$DATAFILE_NEW.temp" 2>/dev/null \| wc -l)" -le 30 ]
	then
	echo "Bad serverlist retrieved to $DATAFILE_NEW.temp, exiting"
	echo "You can try again if there was a transient error"
	exit 1
	else
	jq -cM '.' "$DATAFILE_NEW.temp" > "$DATAFILE_NEW" 2>/dev/null
	fi
	fi

	if [ -n "$PORTFORWARD" ]
	then
	echo "Requesting forwarded port..."
	if which pia-portforward.sh &>/dev/null
	then
	pia-portforward.sh
	else
	if [ -r "${0%/*}/pia-portforward.sh" ]
	then
	"${0%/*}/pia-portforward.sh"
	else
	echo "pia-portforward.sh couldn't be found!"
	exit 1
	fi
	fi
	echo "Note: pia-portforward.sh should be called every ~5 minutes to maintain your forward."
	echo "You could try:"
	echo " while sleep 5m; do pia-portforward.sh; done"
	echo "or alternately add a cronjob with crontab -e"
	fi

	exit 0