Adding squid monitor that reconfigures filter if squid stops working.

Simple shell script.  Small.  Effective.

1 files changed, 41 insertions, 0 deletions

diff --git a/packages/proxy_monitor.sh b/packages/proxy_monitor.sh
new file mode 100644
index 00000000..519a720c
--- /dev/null
+++ b/packages/proxy_monitor.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+# Squid monitor 1.0
+# Written for pfSense's Squid Package
+# by Scott Ullrich
+#
+# This file is released under the BSD style
+#
+
+set -e
+
+LOOP_SLEEP=5
+
+# Squid monitor 1.0
+while [ /bin/true ]; do
+        if [  ! -f /var/run/squid_alarm ]; then
+                NUM_PROCS=`ps awux | grep "squid -D" | grep -v "grep" | wc -l | awk '{ print $1 }'`
+                if [ $NUM_PROCS -lt 1 ]; then
+                        # squid is down
+                        echo "Squid has exited.  Reconfiguring filter." | \
+                                logger -p daemon.info -i -t Squid_Alarm
+                        echo "Attempting restart..." | logger -p daemon.info -i -t Squid_Alarm
+                        /usr/local/etc/rc.d/squid.sh start
+                        sleep 3
+                        echo "Reconfiguring filter..." | logger -p daemon.info -i -t Squid_Alarm
+                        /etc/rc.filter_configure
+                        touch /var/run/squid_alarm
+                fi
+        fi
+        NUM_PROCS=`ps awux | grep "squid -D" | grep -v "grep" | wc -l | awk '{ print $1 }'`
+        if [ $NUM_PROCS -gt 0 ]; then
+                if [ -f /var/run/squid_alarm ]; then
+                        echo "Squid has resumed. Reconfiguring filter." | \
+                                logger -p daemon.info -i -t Squid_Alarm
+			/etc/rc.filter_configure
+                        rm /var/run/squid_alarm
+                fi
+        fi
+        sleep $LOOP_SLEEP
+done
+