Added support for debbuging browser-based proxies

Can now use vnc to connect to a running firefox browser in the
container.

Dockerfile

@@ -1,5 +1,11 @@
 FROM golang:1.11
-RUN apt-get update && apt-get install -y git libx11-dev tor net-tools sudo
+RUN apt-get update && apt-get install -y git libx11-dev tor net-tools sudo gdb strace x11vnc xvfb less apt-transport-https
+## Setting up coffeescript for snowflake proxy
+RUN echo "deb https://deb.nodesource.com/node_12.x stretch main\ndeb-src https://deb.nodesource.com/node_12.x stretch main" | tee /etc/apt/sources.list.d/nodesource.list
+RUN curl -sL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -
+RUN apt-get update && apt-get install -y nodejs firefox-esr
+RUN npm install -g coffeescript
+##
 RUN apt-get clean
 RUN useradd -ms /bin/bash snowflake
 RUN adduser snowflake sudo

README.md

@@ -20,3 +20,10 @@ Inside the snowbox container, execute ```./script.sh --build``` to build and run
 
 ### Attaching additional terminals to the test environment
 Open a new terminal and execute ```./snowbox_run --attach```. Excluding the --attach argument will prompt the script to attempt an attachment if the container is already running.
+
+### Running a browser-based proxy
+To run and debug a browser-based proxy, you can connect to the docker container using VNC. On your host machine, run the following command:
+```vncviewer localhost```
+A window showing a running firefox session should appear. You can then navigate to
+```file:/go/src/snowflake.git/proxy/build/embed.html```
+to run the proxy.

script.sh

@@ -25,6 +25,10 @@ done
 # we manually copy files locally (avoiding go install so we don't have to recompile everytime)
 
 if [ "$build" -ne "0" ]; then
+    #kill broker, proxy, client processes
+    pkill -f broker
+    pkill -f client
+
     cd snowflake.git/broker
 
     go get -d -v
@@ -37,6 +41,11 @@ if [ "$build" -ne "0" ]; then
     cd ../client
     go get -d -v
     go build -v
+
+    cd ../proxy
+    cake build
+    #need to point to our localhost broker instead
+    sed -i 's/snowflake-broker.bamsoftware.com/localhost:8080/' build/snowflake.js
 
     cd /go/src
 fi
@@ -49,8 +58,8 @@ if [ "$client" -eq "0" ]; then
 
     cd /go/bin
 
-    nohup broker -addr ":8080" -disable-tls > broker.log 2> broker.err &
-    nohup proxy-go -broker "http://localhost:8080" > proxy.log 2> proxy.err &
+    broker -addr ":8080" -disable-tls > broker.log 2> broker.err &
+    proxy-go -broker "http://localhost:8080" > proxy.log 2> proxy.err &
 else
     cd /go/bin
 
@@ -68,6 +77,12 @@ else
     sed -i -e "/^-url http:\/\/localhost:8080\//a -log snowflake_client-$count.log" torrc-$count
     echo "SOCKSPort $(($count+9050))" >> torrc-$count
 
-    nohup tor -f torrc-$count > client-$count.log 2> client-$count.err &
+    tor -f torrc-$count > client-$count.log 2> client-$count.err &
 fi
 
+# Start X and firefox for proxy
+/usr/bin/Xvfb :1 -screen 0 1024x768x24 >/dev/null 2>&1 &
+sleep 2
+/usr/bin/x11vnc -display :1.0 >/dev/null 2>&1 &
+
+DISPLAY=:1 firefox &

snowbox_run

@@ -26,7 +26,7 @@ if [ "$attach" -eq "0" ]; then
     if [ $? -ne 0 ]; then
         printf 'Container already exists. Trying to attach...\n'
     else 
-        docker run --name snow_test -p 8080:8080 -it  -v ${SNOWFLAKE_REPO}:/go/src/snowflake.git snowbox /bin/bash
+        docker run --name snow_test -p 8080:8080 -p 6060:6060 -p 5900:5900 -it  -v ${SNOWFLAKE_REPO}:/go/src/snowflake.git --net=vnc --cap-add=SYS_PTRACE --security-opt seccomp=unconfined snowbox /bin/bash
         exit
     fi
 fi