256 lines
8.9 KiB
Perl
Executable File
256 lines
8.9 KiB
Perl
Executable File
#! /usr/bin/perl -T
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# $Id$
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#
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# This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam)
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# Copyright (C) 2003 Tilo Lutz
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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#
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# LDAP Account Manager daemon to create and delete homedirecotries and quotas
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# At the moment communication is using fifos. Later a network socket will be used.
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use Cwd; # Needed to get the current path.
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use Quota; # Needed to get and set quotas
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use Net::LDAP; # Needed to connect to ldap-server
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use File::NCopy qw(copy); # Needed to copy recursive
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use File::Path; # Nedded to delete recursive and create directories recursive
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$path = cwd; # Path of $lam/lib
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$server; # URL of ldap-server
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$usersuffix; # ldap-suffix of users
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@admins; # list of valid admins
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@quota_usr; # Filesystems with enabled userquotas
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@quota_grp; # Filesystems with enabled userquotas
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$debug=true; # Show debug messages
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$|=1;
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# Check if Fifo was created.
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if (!-e 'lamdaemon.fifo') {
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system ('mkfifo', 'lamdaemon.fifo');
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system ('chmod', '777', 'lamdaemon.fifo');
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}
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sub loadcfg {
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# Get ldap-server from $lam/config/lam.conf
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# Get valid admins from $lam/config/lam.conf
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open ( CONFIG, "< $path/../config/lam.conf" ) or die ('Can\'t open lam.conf.');
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while (<CONFIG>) {
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my @line = split (':', $_);
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$line[0] =~ s/ //g;
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$line[1] =~ s/ //g;
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if ($line[0] eq 'serverURL') { $server=$line[1]; }
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if ($line[0] eq 'usersuffix') { $usersuffix=$line[1]; }
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if ($line[0] eq 'admins') { @admins = split (';', $line[1]); }
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}
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$time_lam = -M "$path/../config/lam.conf";
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}
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sub get_fs { # Load mountpoints from mtab if enabled quotas
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Quota::setmntent();
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my $i=0;
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my @args;
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while (my @temp = Quota::getmntent()) {
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$args[$i][0] = $temp[0];
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$args[$i][1] = $temp[1];
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$args[$i][2] = $temp[2];
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$args[$i][3] = $temp[3];
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$i++;
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}
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Quota::endmntent();
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my $j=0; my $k=0; $i=0;
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while ($args[$i][0]) {
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if ( $args[$i][3] =~ m/usrquota/ ) {
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$quota_usr[$j][0] = $args[$i][0];
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$quota_usr[$j][1] = $args[$i][1];
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$quota_usr[$j][2] = $args[$i][2];
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$quota_usr[$j][3] = $args[$i][3];
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$j++;
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}
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elsif ( $args[$i][3] =~ m/grpquota/ ) {
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$quota_grp[$k][0] = $args[$i][0];
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$quota_grp[$k][1] = $args[$i][1];
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$quota_grp[$k][2] = $args[$i][2];
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$quota_grp[$k][3] = $args[$i][3];
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$k++;
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}
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$i++;
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}
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$time_mtab = -M "/etc/mtab";
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}
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$host="127.0.0.1";
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while (defined (<STDIN>))
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{
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# Reset variables
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$found=false;
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$return='';
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open ( FIFO, '< lamdaemon.fifo' ) or die ('Can\'t open fifo lamdaemon.fifo.'); # Open Fifo
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@vals = split (' ', <FIFO>); # read values from fifo
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# vals = DN, PAssword, user, home, (add|rem),
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# quota, (set|get),(u|g), (mountpoint:blocksoft:blockhard:filesoft:filehard:timelimit)+
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# chown options
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close FIFO; # Close fifo.
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if ($debug==true) { print "@vals\n"; }
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if ( $time_lam != -M "$path/../config/lam.conf" ) { loadcfg(); } #load config at start and if configfile has changed
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if ( $time_mtab != -M "/etc/mtab" ) { get_fs(); } #load config at start and if configfile has changed
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# Check if DN is listed as admin
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foreach my $admin (@admins) {
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if ($admin eq $vals[0]) { $found=true; }
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}
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if ($found==true) {
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# Connect to ldap-server and check if password is valid.
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$ldap = Net::LDAP->new($host) or die ('Can\'t connect to ldapserver.');
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$result = $ldap->bind (dn => $vals[0], password => $vals[1]) ;
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if (!$result->code) { # password is valid
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switch: {
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# Get user information
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my $isrealadmin=false;
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if (($vals[5] eq 'u') || ($vals[3] eq 'home')) {
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@user = getpwnam($vals[2]);
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my $result = $ldap->search ( base=>$userbase, filter=>"uid=$vals[2]", attrs=>['userPassword', 'uidNumber'] );
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my $href = $result->as_struct;
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my @arrayOfDNs = keys %$href; # use DN hashes
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my $valref = $$href{$arrayOfDNs[0]};
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my @arrayOfAttrs = sort keys %$valref; #use Attr hashes
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if (@$valref{$arrayOfAttrs['uidNumber']}!=$user[2]) { # We've found the wrong user with the right usernmae but wron uidnumber
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$isrealadmin=false;
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if ($debug==true) { print "Found user $user[0] but uidNumber from another user. Please check your settings!!!\n"; }
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}
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else {
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my $userPassword = @$valref{$arrayOfAttrs['userPassword']} ; # Read userPassword.
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my $msg = $ldap->modify (dn => $arrayOfDNs[0], add=>{ 'userPassword'=>$userPassword });
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if (!$result->code) { $isrealadmin=true; }
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}
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}
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else {
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# Check if admin is really an admin
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# If he can modify the password from the user he's one
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@user = getgrnam($vals[2]);
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my $result = $ldap->search ( base=>$userbase, filter=>"gid=$vals[2]", attrs=>['userPassword', 'gidNumber'] );
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my $href = $result->as_struct;
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my @arrayOfDNs = keys %$href; # use DN hashes
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my $valref = $$href{$arrayOfDNs[0]};
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my @arrayOfAttrs = sort keys %$valref; #use Attr hashes
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if (@$valref{$arrayOfAttrs['gidNumber']}!=$user[2]) { # We've found the wrong user with the right usernmae but wron uidnumber
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$isrealadmin=false;
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if ($debug==true) { print "Found user $user[0] but uidNumber from another user. Please check your settings!!!\n"; }
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}
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else {
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my $userPassword = @$valref{$arrayOfAttrs['userPassword']} ; # Read userPassword.
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if (!$userPassword) {
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$roremove=true;
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$userPassword = "*"; # Set invalid Password if Password is not set, e.g. groups
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}
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my $msg = $ldap->modify (dn => $arrayOfDNs[0], replace=>{ 'userPassword'=>$userPassword });
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if (!$result->code) {
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$isrealadmin=true;
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if ($toremove==true) {
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$ldap->modify (dn => $arrayOfDNs[0], delete=>'userPassword');
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}
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}
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}
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}
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if ($isrealadmin==true) {
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$vals[3] eq 'home' && do {
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switch2: {
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$vals[4] eq 'add' && do {
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# split homedir to set all directories below the last dir. to 755
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my $path = $user[7];
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$path =~ s,/(?:[^/]*)$,,;
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eval { mkpath ($patch, 0, '755') };
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if ($@) { $return = 0; }
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if ( $return != 0 ) {
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eval { mkpath ($user[7], 0, '700') };# Create Homedirectory
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if ($@) { $return = 0; }
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}
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if ($return != 0 ) {
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$return =copy \1, '/etc/skel/', $user[7]; # Copy /etc/sekl into homedir
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}
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if ($return > 0) {
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system 'chown', '-R', $user[2], $user[3] , $user[7]; # Change owner to new user
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}
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system '/usr/sbin/useradd.local', $user[0]; # run useradd-script
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last switch2;
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};
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$vals[4] eq 'rem' && do {
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eval { rmtree ($user[7], 0, 0) }; # Delete Homedirectory
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if ($@) { $return = 0; }
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if ($return!=0) { system '/usr/sbin/userdel.local', $user[0]; }
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last switch2;
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};
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}
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last switch;
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};
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$vals[3] eq 'quota' && do {
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# Store quota information in array
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@quota_temp1 = split (';', $vals[6]);
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$i=0;
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while ($quota_temp1[$i]) {
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$j=0;
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@temp = split (',', $quota_temp1[$i]);
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while ($temp[$j]) {
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$quota[$i][$j] = $temp[$j];
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$j++;
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}
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$i++;
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}
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if ($vals[5] eq 'u') { $group=false; }
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else { $group=true; }
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switch2: {
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$vals[4] eq 'set' && do {
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$i=0;
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while ($quota_usr[$i][0]) {
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$dev = Quota::getqcarg($quota[$i][0]);
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$return = Quota::setqlim($dev,$user[2],$quota[$i][1],$quota[$i][2],$quota[$i][3],$quota[$i][4],1,$group);
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$i++;
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}
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last switch2;
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};
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$vals[4] eq 'get' && do {
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$i=0;
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while ($quota_usr[$i][0]) {
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if ($vals[2]!='*') {
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@temp = Quota::query($quota_usr[$i][0],$user[2],$group);
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$return = "$quota_usr[$i][1],$temp[0],$temp[1],$temp[2],$temp[3],$temp[4],$temp[5],$temp[6],$temp[7];$return";
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}
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else { $return = "$quota_usr[$i][1],0,0,0,0,0,0,0,0;$return"; }
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$i++;
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}
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last switch2;
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};
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}
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last switch;
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};
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}
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else {
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$return = "Got you, stupid hacker.\n";
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}
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}
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}
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else { $return = "Invalid Password"; }
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$ldap->unbind(); # Clode ldap connection.
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}
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else { $return = "Invalid User"; }
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open ( FIFO, '> lamdaemon.fifo' ) or die ('Can\'t open fifo lamdaemon.fifo.'); # Open Fifo
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print FIFO $return;
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close FIFO; # Close fifo.
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print "$return\n";
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}
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