From e075cee1a1f4c85456eb37d4395ceddaefa8d023 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Thu, 23 Feb 2017 15:50:05 +0100
Subject: contrib: add wg-json utility

---
 contrib/examples/json/README  |  8 +++++++
 contrib/examples/json/wg-json | 51 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 contrib/examples/json/README
 create mode 100755 contrib/examples/json/wg-json

diff --git a/contrib/examples/json/README b/contrib/examples/json/README
new file mode 100644
index 0000000..dcd128a
--- /dev/null
+++ b/contrib/examples/json/README
@@ -0,0 +1,8 @@
+wg-json
+=======
+
+This will dump all current WireGuard status as JSON output.
+
+Usage:
+
+    # wg-json
diff --git a/contrib/examples/json/wg-json b/contrib/examples/json/wg-json
new file mode 100755
index 0000000..90544e2
--- /dev/null
+++ b/contrib/examples/json/wg-json
@@ -0,0 +1,51 @@
+#!/bin/bash
+
+# Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+
+exec < <(exec wg show all dump)
+
+printf '{'
+while read -r -d $'\t' device; do
+	if [[ $device != "$last_device" ]]; then
+		[[ -z $last_device ]] && printf '\n' || printf '%s,\n' "$end"
+		last_device="$device"
+		read -r private_key public_key preshared_key listen_port fwmark
+		printf '\t"%s": {' "$device"
+		delim=$'\n'
+		[[ $private_key == "(none)" ]] || { printf '%s\t\t"privateKey": "%s"' "$delim" "$private_key"; delim=$',\n'; }
+		[[ $public_key == "(none)" ]] || { printf '%s\t\t"publicKey": "%s"' "$delim" "$public_key"; delim=$',\n'; }
+		[[ $preshared_key == "(none)" ]] || { printf '%s\t\t"presharedKey": "%s"' "$delim" "$preshared_key"; delim=$',\n'; }
+		[[ $listen_port == "0" ]] || { printf '%s\t\t"listenPort": %u' "$delim" $(( $listen_port )); delim=$',\n'; }
+		[[ $fwmark == "off" ]] || { printf '%s\t\t"fwmark": %u' "$delim" $(( $fwmark )); delim=$',\n'; }
+		printf '%s\t\t"peers": {' "$delim"; end=$'\n\t\t}\n\t}'
+		delim=$'\n'
+	else
+		read -r public_key endpoint allowed_ips latest_handshake transfer_rx transfer_tx persistent_keepalive
+		printf '%s\t\t\t"%s": {' "$delim" "$public_key"
+		delim=$'\n'
+		[[ $endpoint == "(none)" ]] || { printf '%s\t\t\t\t"endpoint": "%s"' "$delim" "$endpoint"; delim=$',\n'; }
+		[[ $latest_handshake == "0" ]] || { printf '%s\t\t\t\t"latestHandshake": %u' "$delim" $(( $latest_handshake )); delim=$',\n'; }
+		[[ $transfer_rx == "0" ]] || { printf '%s\t\t\t\t"transferRx": %u' "$delim" $(( $transfer_rx )); delim=$',\n'; }
+		[[ $transfer_tx == "0" ]] || { printf '%s\t\t\t\t"transferTx": %u' "$delim" $(( $transfer_tx )); delim=$',\n'; }
+		[[ $persistent_keepalive == "off" ]] || { printf '%s\t\t\t\t"persistentKeepalive": %u' "$delim" $(( $persistent_keepalive )); delim=$',\n'; }
+		printf '%s\t\t\t\t"allowedIps": [' "$delim"
+		delim=$'\n'
+		if [[ $allowed_ips != "(none)" ]]; then
+			old_ifs="$IFS"
+			IFS=,
+			for ip in $allowed_ips; do
+				printf '%s\t\t\t\t\t"%s"' "$delim" "$ip"
+				delim=$',\n'
+			done
+			IFS="$old_ifs"
+			delim=$'\n'
+		fi
+		printf '%s\t\t\t\t]' "$delim"
+		printf '\n\t\t\t}'
+		delim=$',\n'
+	fi
+
+
+done
+printf '%s\n' "$end"
+printf '}\n'
-- 
cgit v1.2.3-59-g8ed1b