[rrd-users] Re: rrdcgi - how to access %ENV ??

[Tobias Oetiker]

Today you sent me mail regarding [rrd-users] rrdcgi - how to access %ENV ??:

*> Hi,
*> 
*> I'm considering moving from my hacked perl program to rrdcgi, but I need
*> to restrict certain users to specific interface statistics, so I need 
*> access to the environment of the cgi program, so I can use the 
*> REMOTE_USER env string.
*> 
*> My ideas is if user 'jesper' is allowed to see statistics for a
*> interface, the I'd add a symlink for the corresponding rrd file in a
*> directory like /data/users/jesper/
*> 
*> And then use a DEF like
*> 
*> DEF:ifInOctets=/data/users/<RRD:ENV REMOTE_USER>/<RRD::CV router>.<RRD::CV ifname>.rrd:ifInOctets:MAX
*> 
*> Where <RRD:ENV REMOTE_USER> would be substituted by jesper ...
*> 
*> I cannot use the CGI variables, as I cannot trust them, but the
*> REMOTE_USER, I can trust ...
*> 
*> I've been looking a bit at the code, but as I'm not a C programmer, I
*> think I'm unable to add this functionality to the code, at least without
*> some help ...

adding this will be pretty simple ... there is already SETENV ...
so I will add GETENV ... I put this down ont the todo list ..

cheers
tobi
*> 
*> /Jesper
*> 
*> 

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