Online / Offline Status Notification System via push

sullrich · Nov 7, 2006, 2:15 AM

Technically you could call php from your bash script and echo out the values after parsing but this is going to be SLLLOOOW.

alexus · Nov 7, 2006, 2:20 AM

well besides slow it will eat extra ~15% of CPU, for wrap that is not an option. And in combination to the fact that the script does HTTP request to the external server I definettly dont want to call PHP XML parser… in my case I will have to call it min 2 times and the 3rd will be external HTTP request.

Well lets see what i end up with. Im sure linux/bsd shuld have ability to read xml files.

jeroen234 · Nov 7, 2006, 11:00 PM

lets take a look at it from a difrent side and use the pfsense rules file and get there the lan and wan from


 #!/bin/sh
lan=`awk '/lan = "\{ /{ print $0 }' /tmp/rules.debug | sed -e 's/lan = "{ //' | sed -e 's/ }"//'`
wan=`awk '/wan = "\{ /{ print $0 }' /tmp/rules.debug | sed -e 's/wan = "{ //' | sed -e 's/ }"//'`
echo "lan interface=" $lan
echo "wan interface=" $wan

alexus · Nov 7, 2006, 11:28 PM

nice that screept does work.. i was doing almost the same w/ xml just now… but as I see in that example it uses temp dir? is that dor will be included in future releases? is that dir exist in mono, and finally what rules does it refering to? firewall rules? what if NAT is disabled?
Tnx

jeroen234 · Nov 7, 2006, 11:32 PM

i have made that script on a running pfsense embedded 1.01 soekris
/tmp/rules.debug is the running firewall config of pfsense
mono will have it to i think
nat on or off will not chance the lan of wan interface on the firewall

alexus · Nov 7, 2006, 11:51 PM

ok if that folder is permament and present on both mono and pfSense I will use it …
Less hedeach reading XML file for me..

Tnx

alexus · Nov 8, 2006, 1:16 AM

Ok, operational script partd is done! Now time to build user enterface. PHP time :-) well almowst php + DNS, I hate my DNS…

alexus · Nov 9, 2006, 1:41 AM

Ok, good part of Webinterface is done now.
One problem, I was trying to use fetch instead of wget (as sudgested earlier) but a) I cant make it to work b) it doesnt work as spider

So, is it posible to install WGET to the system and include it in the distribution?

sullrich · Nov 9, 2006, 2:27 AM

What doesn't work with fetch?

alexus · Nov 9, 2006, 2:30 AM

everithing, I tryed all posible syntax and never got it to work …

Can you give me a sample code on using fatch to open lets say http://example.com and do not download any info?

sullrich · Nov 9, 2006, 2:31 AM

What do you mean "do not download any info?"

Do you mean quiet?

alexus · Nov 9, 2006, 2:32 AM

Spider mode = no downloads
quite mode = no output

Technicaly i need them both

sullrich · Nov 9, 2006, 2:33 AM

Quiet and no downloads? Sorry but I dont follow you. The point of fetch and wget is to download/fetch a page.

alexus · Nov 9, 2006, 2:38 AM

who cares about original point :-P
i used wget yo open the remote webpage and transfer variables to remote server via HTTP POST -this is called -spider in wget

wger –spider -q "http://ecample.com?cmd=Hello2%World"

This will send Hello World to remote webserver. and at the same time will not download or save anything. Well some times i can run as spider but not in quite mode so i can see if the requested page returns me an error. This technique is used by google and paypal

sullrich · Nov 9, 2006, 2:40 AM

fetch -o - "http://blah.url.com/test.php?testing=test&propermodulation=true" >/dev/null

alexus · Nov 9, 2006, 2:51 AM

Ok good seams to work :-) Tnx
Now I have to join the GUI with the script and set DNS and i'm done on the client side ;D

alexus · Nov 9, 2006, 4:13 AM

I jaws was trying to use my GUI to modify crontabfile but no luck… i went to actual file and found out this message:

DO NOT EDIT THIS FILE - edit the master and reinstall.

(/tmp/crontab.lfJ3UAOksN installed on Thu Nov 9 04:03:50 2006)

(Cron version – $FreeBSD: src/usr.sbin/cron/crontab/crontab.c,v 1.22 2004/09/14 19:01:19 dds Exp $)

*/60 * * * * sh /usr/local/StatusNotifier/server_status.sh >/dev/null 2>&1

The cron that is there is the one that i installed but I want to let my GUI to be able to edit cron job, but as file says I cant edit it? :o as i would normally do under linux. So how can I edit cron file with out reinstalling it? I dont think I can reinstalll it via script, one way or another its alternating and saving the file content.

Well maybe i missing something? Any ideas?

sullrich · Nov 9, 2006, 4:35 AM

Edit /etc/crontab

killall -HUP cron

alexus · Nov 10, 2006, 2:39 AM

ok Clinent Side is 98% Done, Server side is 30% Done

sullrich · Nov 10, 2006, 3:18 AM

I still have no idea what your working on but good luck. ;)

One bit about that fetch command… Do check the shell return code. fetch will fail if a problem occurred.

I apologize if you are already doing so.