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Proxy socks tester issue

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# 1  
Old 07-24-2014
Proxy socks tester issue
I have a list of ip socks / port(eg: 192.168.0.1 80). I would like to write a bash to test automatically these addresses in a loop with firefox. The problem is that firefox process stays alive even when firefox does not work because of wrong network settings. So I want to kill the process when the browser does not work. I was thinking of the condition:
Code:
timeout 10s watch -n 1 'netstat -a | grep "ESTA http"'

If such command return true, break and exit, otherwise kill firefox and continue.
I dont know how to traduce an output command in a boolean condition. If (output commnand) or if !(output command)
Here is what my script looks like:

#1. read the list
Code:
sort -R list | while read -r IP PORT           
do

#2.clean firefox user preference
Code:
grep -v "network.proxy.\(socks\|socks_port\|type\)" prefs.js  > temp && mv temp prefs.js

#3. set user preference with the current ip/port in the list
Code:
cat <<EOT >> prefs.js
user_pref("network.proxy.socks", "$IP");
user_pref("network.proxy.socks_port", $PORT);
user_pref("network.proxy.type", 1);
EOT

#4.launch firefox
Code:
firefox;

#5 is it working?
Code:
timeout 10s watch -n 1 'netstat -a | grep "ESTA http"'&;

#6 from there I don't how to traduce in bash the following:
Code:
if (output of #5) 
    break;

if !(output of #5) kill $(ps aux | grep 'firefox' | awk '{print $2}')

done;

exit;

thanx guys !

---------- Post updated at 11:24 AM ---------- Previous update was at 08:22 AM ----------

actually, there should be IFS=' '; before the while loop.
I have improved a little bit; the only thing is that it does not break where I want it to break:
Code:
#!/bin/bash

IFS=' ';
sort -R sokslist | while read -r IP PORT           
do

grep -v "network.proxy.\(socks\|socks_port\|type\)" prefs.js  > temp && mv temp prefs.js

cat <<EOT >> prefs.js
user_pref("network.proxy.socks", "$IP");
user_pref("network.proxy.socks_port", $PORT);
user_pref("network.proxy.type", 1);
EOT

firefox;

timeout 10s watch -n 1 'netstat -a | grep "http    ESTA"' |  break; 

#it should break there, but it does not 


kill $(ps aux | grep 'firefox' | awk '{print $2}');

done;

exit

Last edited by rbatte1; 07-24-2014 at 09:43 AM.. Reason: Converted ICODE tags to CODE tags
# 2  
Old 07-24-2014
firefox is a way over-complex program for a simple IP/port testing tool.

Can't you just use nc -z like this:

Code:
sort -R list | while read -r IP PORT
do
   if nc -z $IP $PORT
   then
       echo "$IP:$PORT tested OK"
   else
       echo "$IP:$PORT FAILED"
   fi
done

or, as you appear to be using the bash shell, you could use the bash built-in /dev/tcp

Code:
sort -R list | while read -r IP PORT
do
   if 2>/dev/null >/dev/tcp/$IP/$PORT
   then
       echo "$IP:$PORT tested OK"
   else
       echo "$IP:$PORT FAILED"
   fi
done

Last edited by Chubler_XL; 07-24-2014 at 08:48 PM..
# 3  
Old 07-25-2014
Quote:
Originally Posted by arpagon
. . .
timeout 10s watch -n 1 'netstat -a | grep "http ESTA"' | break;

#it should break there, but it does not

[/CODE]
Don't use a pipe before the break, but either && or || , depending on which condition you need.
# 4  
Old 07-25-2014
Eh, thanx a bunch for your posts guys indeed !
Chubler, my list was built with nc (sometimes, connection is ok with nc but not with firefox)
My script is running now (I sent the post from a proxy ;-D):
Code:
IFS=' ';
sort -R sokslist | while read -r IP PORT           
do

grep -v "network.proxy.\(socks\|socks_port\|type\)" prefs.js  > temp && mv temp prefs.js

cat <<EOT >> prefs.js
user_pref("network.proxy.socks", "$IP");
user_pref("network.proxy.socks_port", $PORT);
user_pref("network.proxy.type", 1);
EOT

firefox &timeout 10s netstat -a | grep -q ESTA 

if [ $? -eq 0 ] 
    then break 
fi

pkill firefox;

done;

exit;

I think I will let netstat running a longer time to catch an ESTABLISHED.
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