From 37313145a7812b1f57bf6f61a82cbcdb28dbd70b Mon Sep 17 00:00:00 2001
From: Jay Shridharani <jshridha@gmail.com>
Date: Mon, 9 Mar 2015 10:40:23 -0400
Subject: [PATCH] Initial commit

---
 .gitignore          |   1 +
 Dockerfile          |  68 +++++++++++++++++++
 apps/checkip.sh     |  25 +++++++
 apps/openvpn.sh     |   6 ++
 config/ca.crt       |  23 +++++++
 config/crl.pem      |  11 +++
 config/openvpn.ovpn |  20 ++++++
 delugevpn.conf      |   5 ++
 nzbget.conf         |   5 ++
 startnzbget.sh      |  19 ++++++
 startvpn.sh         | 162 ++++++++++++++++++++++++++++++++++++++++++++
 11 files changed, 345 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Dockerfile
 create mode 100644 apps/checkip.sh
 create mode 100644 apps/openvpn.sh
 create mode 100644 config/ca.crt
 create mode 100644 config/crl.pem
 create mode 100644 config/openvpn.ovpn
 create mode 100644 delugevpn.conf
 create mode 100644 nzbget.conf
 create mode 100644 startnzbget.sh
 create mode 100644 startvpn.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9c4ec36
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+nzbgetvpn_dockerrun.txt
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..f85a695
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,68 @@
+FROM binhex/arch-base:2015022600
+MAINTAINER binhex
+
+# additional files
+##################
+## NZBGET
+# copy prerun bash shell script (checks for existence of nzbget config)
+ADD startnzbget.sh /home/nobody/start.sh
+
+# add supervisor conf file for app
+ADD nzbget.conf /etc/supervisor/conf.d/nzbget.conf
+
+## openVPN
+# add supervisor conf file for app
+ADD delugevpn.conf /etc/supervisor/conf.d/delugevpn.conf
+
+# add bash script to create tun adapter, setup ip route and create vpn tunnel
+ADD startvpn.sh /root/start.sh
+
+# add bash script to run openvpn
+ADD apps/openvpn.sh /root/openvpn.sh
+
+# add bash script to check tunnel ip is valid
+ADD apps/checkip.sh /home/nobody/checkip.sh
+
+# add pia certificates
+ADD config/ca.crt /home/nobody/ca.crt
+ADD config/crl.pem /home/nobody/crl.pem
+
+# add sample openvpn.ovpn file (based on pia netherlands)
+ADD config/openvpn.ovpn /home/nobody/openvpn.ovpn
+
+# install app
+#############
+
+# install install app using pacman, set perms, cleanup
+RUN pacman -Sy --noconfirm && \
+	pacman -S nzbget --noconfirm && \
+	pacman -S net-tools openvpn unrar unzip p7zip --noconfirm && \
+	chmod +x /root/start.sh /root/openvpn.sh /home/nobody/checkip.sh && \
+	chown -R nobody:users /usr/bin/nzbget /usr/share/nzbget/nzbget.conf /home/nobody/start.sh && \
+	chmod -R 775 /usr/bin/nzbget /usr/share/nzbget/nzbget.conf /home/nobody/start.sh && \
+	yes|pacman -Scc && \	
+	rm -rf /usr/share/locale/* && \
+	rm -rf /usr/share/man/* && \
+#	rm -rf /root/* && \
+	rm -rf /tmp/*
+	
+# docker settings
+#################
+
+# map /config to host defined config path (used to store configuration from app)
+VOLUME /config
+
+# map /data to host defined data path (used to store downloads or use blackhole)
+VOLUME /data
+
+# map /media to host defined media path (used to read/write to media library)
+VOLUME /media
+
+# expose port for http
+EXPOSE 6789
+
+# run supervisor
+################
+
+# run supervisor
+CMD ["supervisord", "-c", "/etc/supervisor.conf", "-n"]
\ No newline at end of file
diff --git a/apps/checkip.sh b/apps/checkip.sh
new file mode 100644
index 0000000..df7dbdb
--- /dev/null
+++ b/apps/checkip.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# create function to check tunnel local ip is valid
+check_valid_ip() {
+
+    IP_ADDRESS="$1"
+	
+    # check if the format looks right
+    echo "$IP_ADDRESS" | egrep -qE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' || return 1
+	
+    # check that each octect is less than or equal to 255
+    echo $IP_ADDRESS | awk -F'.' '$1 <=255 && $2 <= 255 && $3 <=255 && $4 <= 255 {print "Y" } ' | grep -q Y || return 1
+	
+    return 0
+}
+
+# loop and wait until adapter tun0 local ip is valid
+LOCAL_IP=""
+while ! check_valid_ip "$LOCAL_IP"
+do
+	sleep 0.1
+	LOCAL_IP=`ifconfig tun0 2>/dev/null | grep 'inet' | grep -P -o -m 1 '(?<=inet\s)[^\s]+'`
+done
+
+echo "[info] OpenVPN local ip is $LOCAL_IP"
\ No newline at end of file
diff --git a/apps/openvpn.sh b/apps/openvpn.sh
new file mode 100644
index 0000000..f681016
--- /dev/null
+++ b/apps/openvpn.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo "[info] Starting OpenVPN..."
+
+# run openvpn to create tunnel
+/usr/bin/openvpn --cd /config/openvpn --config "$VPN_CONFIG"
\ No newline at end of file
diff --git a/config/ca.crt b/config/ca.crt
new file mode 100644
index 0000000..6cbfe8b
--- /dev/null
+++ b/config/ca.crt
@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/config/crl.pem b/config/crl.pem
new file mode 100644
index 0000000..278adac
--- /dev/null
+++ b/config/crl.pem
@@ -0,0 +1,11 @@
+-----BEGIN X509 CRL-----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+-----END X509 CRL-----
diff --git a/config/openvpn.ovpn b/config/openvpn.ovpn
new file mode 100644
index 0000000..6539ceb
--- /dev/null
+++ b/config/openvpn.ovpn
@@ -0,0 +1,20 @@
+client
+dev tun
+proto udp
+remote nl.privateinternetaccess.com 1194
+ping 600
+ping-restart 1200
+resolv-retry infinite
+nobind
+persist-key
+persist-tun
+ca ca.crt
+tls-client
+remote-cert-tls server
+auth-user-pass credentials.conf
+comp-lzo
+verb 1
+reneg-sec 0
+crl-verify crl.pem
+
+
diff --git a/delugevpn.conf b/delugevpn.conf
new file mode 100644
index 0000000..acc7b52
--- /dev/null
+++ b/delugevpn.conf
@@ -0,0 +1,5 @@
+[program:start]
+autorestart = false
+startsecs = 0
+user = root
+command = /root/start.sh
\ No newline at end of file
diff --git a/nzbget.conf b/nzbget.conf
new file mode 100644
index 0000000..5e7b813
--- /dev/null
+++ b/nzbget.conf
@@ -0,0 +1,5 @@
+[program:nzbget]
+user = nobody
+startsecs = 0
+autorestart = False
+command = /home/nobody/start.sh
\ No newline at end of file
diff --git a/startnzbget.sh b/startnzbget.sh
new file mode 100644
index 0000000..1bed935
--- /dev/null
+++ b/startnzbget.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# check if nzbget.conf exists, if not copy sample config
+if [[ -f /config/nzbget.conf ]]; then
+
+	echo "nzbget.conf exists"
+	
+else
+	
+	# copy to /config
+	cp /usr/share/nzbget/nzbget.conf /config/
+
+	# set maindir to /data folder for downloads
+	sed -i 's/MainDir=~\/downloads/MainDir=\/data/g' /config/nzbget.conf
+	
+fi
+
+#run nzbget specifying config path and daemon flag
+/usr/bin/nzbget -D -c /config/nzbget.conf
\ No newline at end of file
diff --git a/startvpn.sh b/startvpn.sh
new file mode 100644
index 0000000..0882369
--- /dev/null
+++ b/startvpn.sh
@@ -0,0 +1,162 @@
+#!/bin/bash
+
+# create directory
+mkdir -p /config/openvpn
+
+# wildcard search for openvpn config files
+VPN_CONFIG=$(find /config/openvpn -maxdepth 1 -name "*.ovpn" -print)
+	
+# if vpn provider not provided then exit
+if [[ -z "${VPN_PROV}" ]]; then
+	echo "[crit] VPN provider not defined, please specify via env variable VPN_PROV" && exit 1
+
+# if custom|airvpn vpn provider chosen then do not copy base config file
+elif [[ $VPN_PROV == "custom" || $VPN_PROV == "airvpn" ]]; then
+
+	echo "[info] VPN provider defined as $VPN_PROV"
+	if [[ -z "${VPN_CONFIG}" ]]; then
+		echo "[crit] VPN provider defined as $VPN_PROV, no files with an ovpn extension exist in /config/openvpn/ please create and restart delugevpn" && exit 1
+	fi
+
+# if pia vpn provider chosen then copy base config file and pia certs
+elif [[ $VPN_PROV == "pia" ]]; then
+
+	# copy default certs
+	echo "[info] VPN provider defined as $VPN_PROV"	
+	cp -f /home/nobody/ca.crt /config/openvpn/ca.crt
+	cp -f /home/nobody/crl.pem /config/openvpn/crl.pem
+	
+	# if no ovpn files exist then copy base file
+	if [[ -z "${VPN_CONFIG}" ]]; then
+		cp -f "/home/nobody/openvpn.ovpn" "/config/openvpn/openvpn.ovpn"	
+	fi
+	
+	# if remote or port not specified then use netherlands
+	if [[ -z "${VPN_REMOTE}" || -z "${VPN_PORT}" ]]; then
+		echo "[warn] VPN provider remote and/or port not defined, defaulting to Netherlands"
+		sed -i -e "s/remote\s.*/remote nl.privateinternetaccess.com 1194/g" "/config/openvpn/openvpn.ovpn"
+	else
+		echo "[info] VPN provider remote and port defined as $VPN_REMOTE $VPN_PORT"
+		sed -i -e "s/remote\s.*/remote $VPN_REMOTE $VPN_PORT/g" "/config/openvpn/openvpn.ovpn"
+	fi
+	
+	# store credentials in separate file for authentication
+	if ! $(grep -Fxq "auth-user-pass credentials.conf" /config/openvpn/openvpn.ovpn); then
+		sed -i -e 's/auth-user-pass/auth-user-pass credentials.conf/g' /config/openvpn/openvpn.ovpn
+	fi			
+		
+	# write vpn username to file
+	if [[ -z "${VPN_USER}" ]]; then
+		echo "[crit] VPN username not specified" && exit 1
+	else
+		echo "${VPN_USER}" > /config/openvpn/credentials.conf	
+	fi
+
+	# append vpn password to file
+	if [[ -z "${VPN_PASS}" ]]; then
+		echo "[crit] VPN password not specified" && exit 1
+	else
+		echo "${VPN_PASS}" >> /config/openvpn/credentials.conf
+	fi	
+
+# if provider none of the above then exit
+else
+	echo "[crit] VPN Provider unknown, please specify airvpn, pia, or custom" && exit 1
+fi
+
+# customise openvpn.ovpn to ping tunnel every 10 mins
+if ! $(grep -Fxq "ping 600" "$VPN_CONFIG"); then
+	sed -i '/remote\s.*/a ping 600' "$VPN_CONFIG"
+fi
+
+# customise openvpn.ovpn to restart tunnel after 20 mins if no reply from ping
+if ! $(grep -Fxq "ping-restart 1200" "$VPN_CONFIG"); then
+	sed -i '/ping 600/a ping-restart 1200' "$VPN_CONFIG"
+fi
+
+# read port number and protocol from openvpn.ovpn (used to define iptables rule)
+VPN_PORT=$(cat "$VPN_CONFIG" | grep -P -o -m 1 '^remote\s[^\r\n]+' | grep -P -o -m 1 '[\d]+$')
+VPN_PROTOCOL=$(cat "$VPN_CONFIG" | grep -P -o -m 1 '(?<=proto\s)[^\r\n]+')
+	
+# set permissions to user nobody
+chown -R nobody:users /config/openvpn
+chmod -R 775 /config/openvpn
+
+# create the tunnel device
+[ -d /dev/net ] || mkdir -p /dev/net
+[ -c /dev/net/tun ] || mknod /dev/net/tun c 10 200
+
+# get gateway ip for eth0
+DEFAULT_GATEWAY=$(ip route show default | awk '/default/ {print $3}')
+
+# setup route for nzbget webui using set-mark to route traffic for port 6789 to eth0
+echo "6789    webui" >> /etc/iproute2/rt_tables
+ip rule add fwmark 1 table webui
+ip route add default via $DEFAULT_GATEWAY table webui
+	
+echo "[info] ip route"
+ip route
+echo "--------------------"
+
+# set policy to drop for input
+iptables -P INPUT DROP
+
+# accept input to tunnel adapter
+iptables -A INPUT -i tun0 -j ACCEPT
+
+# accept input to vpn gateway
+iptables -A INPUT -p $VPN_PROTOCOL -i eth0 --sport $VPN_PORT -j ACCEPT
+
+# accept input to nzbget webui port 6789
+iptables -A INPUT -p tcp -i eth0 --dport 6789 -j ACCEPT
+iptables -A INPUT -p tcp -i eth0 --sport 6789 -j ACCEPT
+	
+# accept input dns lookup
+iptables -A INPUT -p udp --sport 53 -j ACCEPT
+
+# accept input icmp (ping)
+iptables -A INPUT -p icmp --icmp-type echo-reply -j ACCEPT
+
+# accept input to local loopback
+iptables -A INPUT -i lo -j ACCEPT
+
+# set policy to drop for output
+iptables -P OUTPUT DROP
+
+# accept output to tunnel adapter
+iptables -A OUTPUT -o tun0 -j ACCEPT
+
+# accept output to vpn gateway
+iptables -A OUTPUT -p $VPN_PROTOCOL -o eth0 --dport $VPN_PORT -j ACCEPT
+
+# accept output to nzbget webui port 6789 (used when tunnel down)
+iptables -A OUTPUT -p tcp -o eth0 --dport 6789 -j ACCEPT
+iptables -A OUTPUT -p tcp -o eth0 --sport 6789 -j ACCEPT
+
+# accept output to mzbget webui port 6789 (used when tunnel up)
+iptables -t mangle -A OUTPUT -p tcp --dport 6789 -j MARK --set-mark 1
+iptables -t mangle -A OUTPUT -p tcp --sport 6789 -j MARK --set-mark 1
+
+# accept output dns lookup
+iptables -A OUTPUT -p udp --dport 53 -j ACCEPT
+
+# accept output icmp (ping) 
+iptables -A OUTPUT -p icmp --icmp-type echo-request -j ACCEPT
+
+# accept output to local loopback
+iptables -A OUTPUT -o lo -j ACCEPT
+
+echo "[info] iptables"
+iptables -S
+echo "--------------------"
+
+# add in google public nameservers (isp may block ns lookup when connected to vpn)
+echo 'nameserver 8.8.8.8' > /etc/resolv.conf
+echo 'nameserver 8.8.4.4' >> /etc/resolv.conf
+
+echo "[info] nameservers"
+cat /etc/resolv.conf
+echo "--------------------"
+
+# start openvpn tunnel
+source /root/openvpn.sh
\ No newline at end of file