addsfskey.in 3.3 KB
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#!/usr/bin/perl -wT
#
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# Copyright (c) 2000-2004, 2006 University of Utah and the Flux Group.
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# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
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#
use English;
use Getopt::Std;

#
# Stub. Right now the work is done in php, and all this does is
# invoke the script to fire the entire keys file to ops. I'll leave
# it this way until SFS becomes more central to operations. 
#
sub usage()
{
    print "Usage: addsfskey [-n] <user> <keyfile>\n";
    print "       addsfskey [-i | -w] <user>\n";
    print "Options:\n";
    print " -n      Verify key format only; do not enter into into DB\n";
    print " -w      Generate new sfs_users entry for user\n";
    print " -i      Initialize mode; generate initial key for user\n";
    exit(-1);
}
my $optlist   = "niw";
my $verify    = 0;
my $initmode  = 0;
my $genmode   = 0;
my $nobody    = 0;

#
# Configure variables
#
my $TB		= "@prefix@";
my $TBOPS       = "@TBOPSEMAIL@";
my $TBAUDIT     = "@TBAUDITEMAIL@";
my $SFSUPDATE   = "$TB/sbin/sfskey_update";

# Locals
my $user;
my $keyfile;

#
# Testbed Support libraries
#
use lib "@prefix@/lib";
use libaudit;
use libdb;
use libtestbed;

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#
# Function prototypes
#
sub fatal($);

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my $HOMEDIR	= USERROOT();

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#
# Turn off line buffering on output
#
$| = 1;

#
# Untaint the path
# 
$ENV{'PATH'} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin";
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};

#
# Please do not run it as root. Hard to track what has happened.
# 
if ($UID == 0) {
    die("*** $0:\n".
	"    Please do not run this as root!\n");
}

#
# Parse command arguments. Once we return from getopts, all that should be
# left are the required arguments.
#
%options = ();
if (! getopts($optlist, \%options)) {
    usage();
}
if (defined($options{"n"})) {
    $verify = 1;
}
if (defined($options{"i"})) {
    $initmode = 1;
}
if (defined($options{"w"})) {
    $genmode = 1;
}
if ($verify && $genmode) {
    usage();
}
if ($initmode || $genmode) {
    if (@ARGV != 1) {
	usage();
    }
}
elsif (@ARGV == 2) {
    $keyfile = $ARGV[1];
}
else {
    usage();
}    
$user = $ARGV[0];

#
# Untaint the arguments.
#
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if ($user =~ /^([-\w]+)$/i) {
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    $user = $1;
}
else {
    fatal("Tainted username: $user");
}

#
# If invoked as "nobody" its for a user with no actual account.
# 
if (getpwuid($UID) eq "nobody") {
    if ($initmode || $genmode) {
	fatal("Bad usage as 'nobody'");
    }
    $nobody = 1;
}

#
# Mark user record as modified so nodes are updated.
#
TBNodeUpdateAccountsByUID($user);

#
# This is it for now ...
#
system($SFSUPDATE) == 0
    or fatal("$SFSUPDATE failed!");

exit(0);

sub fatal($) {
    my($mesg) = $_[0];

    die("*** $0:\n".
	"    $mesg\n");
}