validation reporter minidaemon

git-svn-id: file:///svn/unbound/trunk@2362 be551aaa-1e26-0410-a405-d3ace91eadb9

diff --git a/contrib/validation-reporter.sh b/contrib/validation-reporter.sh
new file mode 100755 (executable)
index 0000000..74052b9
--- /dev/null
+++ b/contrib/validation-reporter.sh
@@ -0,0 +1,117 @@
+#!/bin/sh
+# validation reporter - reports validation failures to a collection server.
+# Copyright NLnet Labs, 2010
+# BSD license.
+
+
+###
+# Here is the configuration for the validation reporter
+# it greps the failure lines out of the log and sends them to a server.
+
+# The pidfile for the reporter daemon.
+pidfile="/var/run/validation-reporter.pid"
+
+# The logfile to watch for logged validation failures.
+logfile="/var/log/unbound.log"
+
+# how to notify the upstream 
+# nc is netcat, it sends tcp to given host port.  It makes a tcp connection
+# and writes one log-line to it (grepped from the logfile).
+# the notify command can be: "nc the.server.name.org 1234"
+# the listening daemon could be:  nc -lk 127.0.0.1 1234 >> outputfile &
+notify_cmd="nc localhost 1234"
+
+
+###
+# Below this line is the code for the validation reporter,
+# first the daemon itself, then the controller for the daemon.
+reporter_daemon() {
+       trap "rm -f \"$pidfile\"" EXIT
+       tail -f $logfile | grep "unbound.*info: validation failure" | \
+       while read x; do
+               echo "$x" | $notify_cmd
+       done
+}
+
+
+###
+# controller for daemon.
+start_daemon() {
+       echo "starting reporter"
+       nohup $0 rundaemon </dev/null >/dev/null 2>&1 &
+       echo $! > "$pidfile"
+}
+
+kill_daemon() {
+       echo "stopping reporter"
+       if test -s "$pidfile"; then
+               kill `cat "$pidfile"`
+               # check it is really dead
+               if kill -0 `cat "$pidfile"` >/dev/null 2>&1; then
+                       sleep 1
+                       while kill -0 `cat "$pidfile"` >/dev/null 2>&1; do
+                               kill `cat "$pidfile"` >/dev/null 2>&1
+                               echo "waiting for reporter to stop"
+                               sleep 1
+                       done
+               fi
+       fi
+}
+
+get_status_daemon() {
+       if test -s "$pidfile"; then
+               if kill -0 `cat "$pidfile"`; then
+                       return 0;
+               fi
+       fi
+       return 1;
+}
+
+restart_daemon() {
+       kill_daemon
+       start_daemon
+}
+
+condrestart_daemon() {
+       if get_status_daemon; then
+               echo "reporter ("`cat "$pidfile"`") is running"
+               exit 0
+       fi
+       start_daemon
+       exit 0
+}
+
+status_daemon() {
+       if get_status_daemon; then
+               echo "reporter ("`cat "$pidfile"`") is running"
+               exit 0
+       fi
+       echo "reporter is not running"
+       exit 1
+}
+
+case "$1" in
+       rundaemon)
+               reporter_daemon
+       ;;
+       start)
+               start_daemon
+       ;;
+       stop)
+               kill_daemon
+       ;;
+       restart)
+               restart_daemon
+       ;;
+       condrestart)
+               condrestart_daemon
+       ;;
+       status)
+               status_daemon
+       ;;
+       *)
+               echo "Usage: $0 {start|stop|restart|condrestart|status}"
+               exit 2
+       ;;
+esac
+exit $?