[RADIATOR] Executing an external script from Radiator

Tue Jun 28 06:04:54 CDT 2011

You're not iterating over stdin.

Try something like:

martin at apollo:~$ cat test.sh
#!/bin/bash

#iterate over stdin and pull out the relevant fields.
while read LINE
do
        if [[ $LINE =~ User-Name ]]; then
                USERNAME=$( echo $LINE | awk -F'= ' '{print $2}')
        fi
        if [[ $LINE =~ User-Password ]]; then
                PASSWORD=$( echo $LINE | awk -F'= ' '{print $2}')
        fi
done

echo username is $USERNAME
echo password is $PASSWORD

martin at apollo:~$ echo -e "User-Name = \"Fred\"\nUser-Password =
\"supersecret\"" | ./test.sh
username is "Fred"
password is "supersecret"

On 28/06/11 10:00, M P wrote:
> 
> Hello all,
> 
> If you have noticed, I am trying to get the values of the User-Name and User-Password attributes in my BASH script that is being executed by the Command parameter inside my <AuthBy EXTERNAL> clause. In my test, I can only get the value of the User-Name attribute but not with the User-Password attribute as it appears blank. If I can pass the value of the User-Password attribute to the $PASSWORD variable, I will be able to compare it with the return value when I do the wget command.
> 
> Please advice on how am I able to proceed from here.
> 
> Regards,
> 
> MP
> 
> 
> From: antmtp at hotmail.com
> To: radiator at open.com.au
> Date: Tue, 28 Jun 2011 14:50:51 +0800
> Subject: Re: [RADIATOR] Executing an external script from Radiator
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  Hello all,
>  
> How am I able to read the value of the User-Password attribute and pass it to a variable from an (AuthBy) EXTERNAL BASH script? Also, how am I able to send back the result to the user either successful (Access-Accept) or failed (Access-Reject)?
>  
> Below is a snippet of my Radiator configuration:
>  
> - - - < s n i p > - - -
> <Realm DEFAULT>
>     <AuthBy EXTERNAL>
>         DecryptPassword
>         Command /usr/local/sbin/testauth.sh
>         Fork
>         RejectEmptyPassword
>     </AuthBy>
>         AcctLogFileName %L/accounting/detail-%Y%m%d.log
> </Realm>
> - - - < s n i p > - - -
>  
> Below is my BASH script:
>  
> - - - < s n 
>  i p > - - -
> #!/bin/bash
> USERNAME=$(grep -i User-Name | awk -F'61|@' '{print $2}')
> PASSWORD=$(grep -i User-Password | awk -F'= ' '{print $2}')
> HOST=192.168.1.101
> HTTP_PORT=80
> URL="http://$HOST/credentials.php?command=password_retrieve&phonenumber=$USERNAME"
> RETVAL=0
> set -x
> function die()
> {
>     echo -e "$@" >> /var/log/messages
>     exit 1
> }
> if echo "" | telnet $HOST $HTTP_PORT 2>&1 | grep -i Connected ; then
>     if [ $PASSWORD == $(wget -c -O - $URL | cut -d\| -f 1) ] ; then
>     #    Make an Access-Accept reply to the user.
>     else
>     #    Make an Access-Reject reply to the user.
>     fi
> else
>     die "ERROR: The $HOST is dow
>  n or unreachable on $(date)."
> fi
> exit ${RETVAL}
> - - - < s n i p > - - -
>  
> Lastly, I am getting the below line in my radiusd.log file:
>  
> Tue Jun 28 13:53:01 2011 476732: ERR: Bad attribute=value pair: Connected to 192.168.1.201.
>  
> Please advice. Thank you in advance.
>  
> Regards,
>  
> MP 
> From: antmtp at hotmail.com
> To: radiator at open.com.au
> Date: Wed, 22 Jun 2011 13:50:30 +0800
> Subject: Re: [RADIATOR] Executing an external script from Radiator
> 
> 
> 
> 
> 
> 
> 
> 
> Hello all,
>  
> Thank you for all who responded to my e-mail.
>  
> Now, I have a problem though. First, I am just going to write the script in BASH as I don't know Perl. Second, there is no database here to verify the User-Name and User-Password. Everytime there is an Access-Request that is received by the Radiator, it should execute the BASH script to (maybe) wget or curl with an input parameter of the User-Name from an HTTP or HTTPS URL and will receive the output with the User-Name and User-Password to verify and then reply back with an Access-Accept. If during the wget or curl from the URL and the output is other than what I expect (the User-Name and User-Password), then Radiator should respond with an Access-Reject.
>  
> [NAS Client] <---> (RADIUS TRaffic) <---> [Radiator] <---> (Execute Script) <---> (HTTP/HTTPS Traffic) <---> [HTTP Server]
>  
> Please ad
>  vice. Thank you in advance.
>  
> From: antmtp at hotmail.com
> To: radiator at open.com.au
> Date: Tue, 21 Jun 2011 14:34:37 +0800
> Subject: [RADIATOR] Executing an external script from Radiator
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> Hello all,
>  
> How am I going to execute an external script when Radiator receives an Access-Request? This script will actually do an HTTP API request from an external HTTP server to get the userid then once the script have it on the same server as where the Radiator is running, Radiator will now respond an Access-Accept.
>  
> Please advice. Thank you in advance.
>  		 	   		  
> 
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> 
> 
> 
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-- 
Martin Burton
Senior Systems Administrator               \\\|||///
Special Projects Team                     \\  ^ ^  //
Wellcome Trust Sanger Institute            (  6 6  )
-----------------------------------------oOOo-(_)-oOOo---
t: +44 (0)1223 496945             http://www.sanger.ac.uk

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