introduce docker and launch script (#4)

* Introduce docker and launch script
* warn if unbound not found
* output only on connect
* show new routes

Dockerfile

@@ -0,0 +1,22 @@
+FROM alpine:3.8
+
+WORKDIR /
+
+RUN apk add -U openssl openssl-dev bash curl tar wget nano build-base ca-certificates automake gcc abuild binutils \
+ && apk add python openssh-client libtool intltool autoconf libxml2-dev krb5-dev lz4 lz4-dev linux-headers py2-lxml py2-requests	git \
+ && rm -rf /var/cache/apk/*
+
+RUN git clone https://github.com/dlenski/openconnect.git
+RUN mkdir -p /usr/local/sbin
+RUN wget http://git.infradead.org/users/dwmw2/vpnc-scripts.git/blob_plain/HEAD:/vpnc-script -O /usr/local/sbin/vpnc-script
+ADD vpnc-script-os /usr/local/sbin/vpnc-script
+RUN chmod +x /usr/local/sbin/vpnc-script
+
+WORKDIR /openconnect
+
+RUN ./autogen.sh
+RUN ./configure --with-vpnc-script=/usr/local/bin/vpnc-script
+RUN make check
+RUN make
+
+CMD ["/openconnect/gp-okta/gp-okta.py", "/openconnect/gp-okta/gp-okta.conf"]

README.md

@@ -23,6 +23,20 @@ is also required.
    ./gp-okta.py gp-okta.conf
 ```
 
+## docker
+
+Build image
+```
+docker build -t openconnect .
+```
+Fill gp-okta.conf with information you want to provide
+
+launch docker with:
+```
+sh launch.sh
+```
+it will ask for username/password/second auth if not filled in gp-okta.conf
+
 ## configuration
 
 Configuration file should be self-explanatory. Options can be overridden with

launch.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+
+conf_username=`grep username gp-okta.conf | awk -F \= '{print $2}' | tr -d " "`
+conf_password=`grep password gp-okta.conf | awk -F \= '{print $2}' | tr -d " "`
+totp_okta=`grep totp.okta gp-okta.conf | awk -F \= '{print $2}' | tr -d " "`
+totp_google=`grep totp.google gp-okta.conf | awk -F \= '{print $2}' | tr -d " "`
+
+haystack="okta google"
+
+if [[ -z "${totp_okta}" && -z "${totp_google}" ]]; then
+    read -p "Enter Second auth numbers (okta or google), (prepend with needed provider e.g okta_1234): " totp
+    if [[ "${totp}" ]]; then
+        totp_choice=`echo ${totp} | awk  -F _ '{ print $1 }'`
+        totp_numbers=`echo ${totp} | awk  -F _ '{ print $2 }'`
+        if [[ -n "echo $haystack|grep $totp_choice" ]]; then
+            echo "${totp_choice}"
+            if [[ "${totp_numbers}" && ${totp_choice} ]]; then
+                sed -i "s/totp.${totp_choice}.*/totp.${totp_choice} = ${totp_numbers}/g" gp-okta.conf
+            fi
+        else
+            echo "Unsupported second auth choosed"
+            exit 1
+        fi
+
+    else
+        echo "Something failed with parsing second auth"
+        exit 1
+    fi
+
+fi
+
+### detect where username is filled in
+if [[ "${conf_username}" ]]; then
+    GP_USERNAME=${conf_username}
+fi
+
+if [[ -z "${conf_username}" && -z "${GP_USERNAME}" ]]; then
+    read -p "Enter Okta username: " GP_USERNAME
+fi
+
+### detect where password is filled in
+if [[ "${conf_password}" ]]; then
+    GP_PASSWORD=${conf_password}
+fi
+
+if [[ -z "${conf_password}" && -z "${GP_PASSWORD}" ]]; then
+    read -s -p "Enter Okta password: " GP_PASSWORD
+fi
+
+echo
+
+
+docker run \
+    -d \
+    --rm \
+    --privileged \
+    --net=host \
+    --cap-add=NET_ADMIN \
+    --device /dev/net/tun \
+    -e GP_PASSWORD=${GP_PASSWORD} \
+    -e GP_USERNAME=${GP_USERNAME} \
+    -v /etc/resolv.conf:/etc/resolv.conf \
+    -v ${PWD}:/openconnect/gp-okta \
+    openconnect

vpnc-script-wrapper.sh

@@ -23,15 +23,16 @@ _split() {
 }
 
 _get_unbound() {
-        command -v /usr/local/sbin/unbound-control >/dev/null 2>&1 \
+	command -v /usr/local/sbin/unbound-control >/dev/null 2>&1 \
-		&& echo "/usr/local/sbin/unbound-control" && return 0
+	&& echo "/usr/local/sbin/unbound-control" && return 0
-        command -v unbound-control >/dev/null 2>&1 \
+	command -v unbound-control >/dev/null 2>&1 \
-		&& echo "unbound-control"  && return 0
+	&& echo "unbound-control"  && return 0
-        return 1
+	return 1
 }
 
 output_routes()
 {
+	[ X"${reason}" != X"connect" ] && return
 	if [ -n "${CISCO_SPLIT_INC}" ]; then
 		_i=0
 		while [ ${_i} -lt ${CISCO_SPLIT_INC} ] ; do
@@ -57,6 +58,9 @@ adjust_routes()
 		export CISCO_SPLIT_INC_${_i}_ADDR="${_addr}"
 		export CISCO_SPLIT_INC_${_i}_MASK="${_mask}"
 		export CISCO_SPLIT_INC_${_i}_MASKLEN="${_masklen}"
+		if [ X"${reason}" = X"connect" ]; then
+			echo "new.route: ${_addr}/${_masklen}"
+		fi
 		_i=$(expr ${_i} + 1)
 	done
 	export CISCO_SPLIT_INC=${_i}
@@ -65,6 +69,7 @@ adjust_routes()
 
 output_dns()
 {
+	[ X"${reason}" != X"connect" ] && return
 	echo "orig.dns: ${INTERNAL_IP4_DNS}"
 	echo "orig.domain: ${CISCO_DEF_DOMAIN}"
 }
@@ -72,10 +77,11 @@ output_dns()
 adjust_dns()
 {
 	_dns="${INTERNAL_IP4_DNS}"
+	[ -z "${_dns}" ] && return
+	_unbound=$(_get_unbound) || \
+		{ echo "warn: unbound not found" >&2 && return; }
 	unset CISCO_DEF_DOMAIN
 	unset INTERNAL_IP4_DNS
-	[ -z "${_dns}" ] && return
-	_unbound=$(_get_unbound) || { echo "err: unbound not found" >&2 && exit 1; }
 	IFS=$NLIFS
 	for _line in ${_DOMAINS}; do
 		_split "${_line}" ' ' _domain _insecure _
@@ -104,4 +110,3 @@ output_dns
 adjust_dns
 
 ${_VPNC_SCRIPT} $@
-