feat(bin): add xtrellis/bin/test-gateway-io.sh

script for testing mix-net data in/out by means of the gateway

cmd/xtrellis/bin/test-gateway-io.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+# Test transmission of data streams through mix-net by means of gateway proxy i/o
+
+# Example coordinated local mix-net invocation before running this:
+# ./xtrellis coordinator --messagesize 120 --numlayers 5 --numusers 3 --roundinterval 1 --gatewayenable --debug
+
+set -e
+
+# bytes of data to send through the mix-net (default 10K)
+DATA_SIZE=${1:-10240}
+
+cd /tmp
+rm -f data.{in,out}
+
+# random -> file
+cat /dev/urandom | head -c ${DATA_SIZE} > data.in
+# dd if=/dev/urandom of=data.in bs=1024 count=10 &>/dev/null
+
+# file -> gateway -> [mix-net]
+cat data.in | nc -q 1 localhost 9000
+
+# [mix-net] -> gateway -> file
+wget -O data.out -q http://localhost:9900 || echo "not found"
+
+# compare data input to output
+if diff -q data.in data.out &>/dev/null; then
+  echo "Success!"
+else
+  echo "Fail!"
+fi