added pingbot to mobots

mobots/ping.conf.sample

@@ -0,0 +1,12 @@
+# a whitespace seperated list of ip addresses or fqdnames
+dest="192.168.1.13 somemachine.example.com"
+
+# jabber configuration
+user="jid"
+server="jabber-server"
+#port=""    ## if you want to use a special port (default: 5222)
+pass="jabber-password"
+res="pingbot"
+watchdogs="someuser@jabber.example.com anotheruser@example.com"    ## whitespace seperated list of JIDs
+
+

mobots/ping.sh

@@ -0,0 +1,84 @@
+## ##    ##    ##    ##    ##    ##    ## ##
+##                                        ##
+##           jabber ping bot              ##
+##                                        ##
+##                 v0.1                   ##
+##                                        ##
+##     author: david@socialnerds.org      ##
+##                                        ##
+## ##    ##    ##    ##    ##    ##    ## ##
+
+
+## timestamp for logfile
+timestamp=$(date '+%d %B %Y %H:%M')
+echo "info: starting jabber ping bot $timestamp"
+
+
+## check if sendxmpp is installed
+if [ $(aptitude search sendxmpp | awk '{print $1}') = "i" ]; then
+    echo "info: sendxmpp found"
+else
+    if [ $(whoami) = "root" ]; then
+        apt-get install sendxmpp
+    else
+        echo "error: permission denied"
+        echo "info: install sendxmpp or run this scrip as superuser"
+        exit 1
+    fi
+fi
+
+
+## set and load configfile
+if [ -z $1 ]; then
+    configfile="/etc/mobots/ping.conf"
+    if [ -f $configfile ]; then
+        source $configfile
+    else
+        echo "error: no config file $configfile" 
+        exit 1
+    fi
+else
+    configfile=$1
+    if [ -f $configfile ]; then
+        source $configfile
+    else
+        echo "error: no config file $configfile" 
+        exit 1
+    fi
+fi
+
+
+## check sendxmpp config
+if [ -f ~/.sendxmpprc ]; then
+    echo "info: jabber config found in ~/.sendxmpprc"
+else
+
+    if [ -z $port ]; then
+        port="5222"
+    else
+        echo "info: using port $port"
+    fi
+
+    echo "$user@$server:$port $pass" > ~/.sendxmpprc
+    chmod 600 ~/.sendxmpprc
+    echo "info: created sendxmpp config in ~/.sendxmpprc"
+fi
+
+## run the actual ping
+set -- $dest
+
+for var in "$@"
+do
+    data=$(ping -c 05 $var | grep transmitted | awk '{print $4}')
+    if [ $data -lt 4 ]; then
+        echo "alert: $var is unreachable"
+        echo "alert: $var is unreachable" | sendxmpp -r $res $watchdogs
+    else
+        echo "info: $var is reachable"
+    fi
+done
+
+
+## the end
+exit 0
+