From ecbe8fddf4451615d0222422762e812d0f93d7a0 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Mon, 26 Oct 2015 10:44:11 +0100
Subject: [redsocks] Only check if proxy if needed when mode is set to "auto"

---
 .../data/opt/openslx/scripts/systemd-setup_proxy        | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

(limited to 'remote/modules')

diff --git a/remote/modules/redsocks/data/opt/openslx/scripts/systemd-setup_proxy b/remote/modules/redsocks/data/opt/openslx/scripts/systemd-setup_proxy
index 86b19e97..97ef8225 100755
--- a/remote/modules/redsocks/data/opt/openslx/scripts/systemd-setup_proxy
+++ b/remote/modules/redsocks/data/opt/openslx/scripts/systemd-setup_proxy
@@ -16,17 +16,18 @@ PROXY=off
 if [ "$SLX_PROXY_MODE" == "on" ]; then
 	PROXY=on
 elif [ "$SLX_PROXY_MODE" == "auto" -a -n "$SLX_PXE_CLIENT_IP" ]; then
-	[[ "$SLX_PXE_CLIENT_IP" =~ ^10\. ]] && PROXY=on
-	[[ "$SLX_PXE_CLIENT_IP" =~ ^192\.168\. ]] && PROXY=on
-	[[ "$SLX_PXE_CLIENT_IP" =~ ^172\.[123][0-9]\. ]] && PROXY=on
+	# auto detection: check if it is actually needed
+	RET=$(curl -m 2 -s http://www.google.de/ | grep -o google | wc -l)
+	if [ $RET -lt 20 ]; then
+		sleep 4
+		RET=$(curl -m 5 -s http://www.google.de/ | grep -o google | wc -l)
+	fi
+	[ $RET -gt 20 ] && echo "Auto detect: Internet is reachable without proxy." && exit 0
+	PROXY=on
 fi
 
 [ "$PROXY" == "off" ] && echo "Proxy mode not required." && exit 0
-
-# wants a proxy from the config file and the client's ip, check if it is actually needed
-/opt/openslx/bin/ping -w 5 -c 3 www.google.de
-RET=$?
-[ $RET -eq 0 ] && echo "Internet is reachable without proxy." && exit 0
+echo "Setting up transparent proxying via $SLX_PROXY_IP"
 
 sed -i "s/%%PROXY_IP%%/$SLX_PROXY_IP/g;s/%%PROXY_PORT%%/$SLX_PROXY_PORT/g;s/%%PROXY_TYPE%%/$SLX_PROXY_TYPE/g" /etc/redsocks.conf
 
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