#!/usr/bin/perl -w

#----------------------------------------------------------------------
# copyright (C) 1999-2005 Mitel Networks Corporation
# copyright (C) 2024 Koozali foundation inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
#
#----------------------------------------------------------------------
package esmith;

use strict;
use Errno;
use File::Find;
use esmith::util;
use esmith::templates;
use esmith::AccountsDB;
use esmith::ConfigDB;
use utf8;
use esmith::util::ldap;

my $conf = esmith::ConfigDB->open_ro
    or die "Could not open Config DB";

my $ldapauth = $conf->get('ldap')->prop('Authentication') || 'disabled';
my $x = 0; # exit value
my $result;

# prepare LDAP bind
my $ldap=esmith::util::ldap->new();

$ENV{'PATH'} = "/bin";

my $event = $ARGV [0];
my $ibayName = $ARGV [1];

die "ibayName argument missing" unless defined ($ibayName);

my $accountdb = esmith::AccountsDB->open_ro();
my $ibay = $accountdb->get($ibayName) or 
	die "Couldn't find $ibayName record in accounts db\n";

die "Account $ibayName is not an ibay account; modify ibay event failed.\n"
    unless ($ibay->prop('type') eq 'ibay');

if ($event eq 'ibay-create')
{
#------------------------------------------------------------
# Check the Unix account.
#------------------------------------------------------------

    #------------------------------------------------------------
    # create unix user and group account, unless we switch to ldap authentication
    #------------------------------------------------------------
    if ($ldapauth ne 'enabled')
    {
        system(
            "/usr/sbin/groupadd",
            "-g",
            $ibay->prop("Gid"),
            $ibayName
        ) == 0 or ( $x = 255, warn "Failed to create (unix) group $ibayName.\n" );

        system(
            "/usr/sbin/useradd",
            "-u",
            $ibay->prop("Uid"),
            "-g",
            $ibay->prop("Gid"),
            "-c",
            $ibay->prop("Name"),
            "-d",
            "/home/e-smith/files/ibays/$ibayName/files",
            "-G",
            "shared,"
            . $ibay->prop("Group"),
            "-M",
            "-s",
            "/bin/false",
            "$ibayName"
        ) == 0 or ( $x = 255, warn "Failed to create (unix) account $ibayName.\n" );
    }

    #------------------------------------------------------------
    # add new ibay group to ldap
    #------------------------------------------------------------
    $result = $ldap->ldapgroup($ibay);
    $result && ( $x = $ldapauth ne 'enabled' ? $x : 255, warn "Failed to create (ldap) group $ibayName.\n" );

    #------------------------------------------------------------
    # add new ibay user to ldap and lock password
    #------------------------------------------------------------
    $result = $ldap->ldapuser($ibay);
    $result && ( $x = $ldapauth ne 'enabled' ? $x : 255, warn "Failed to create (ldap) account $ibayName.\n" );

    #------------------------------------------------------------
    # Loop to add new user to groups  "shared,". $ibay->prop("Group")
    #------------------------------------------------------------
    foreach my $grp ( 'shared', $ibay->prop("Group") )  {
        my @groupMembers = ($ibayName);
        $result = $ldap->ldapaddgroupmembers($grp,\@groupMembers);
        # error code 20 is entry already exits.
        $result &&  ( $result != 20 ) && ( $x = $ldapauth ne 'enabled' ? $x : 255, warn "Failed to add (ldap) account $ibayName to supplementary group $grp.\n" );
    }
    #------------------------------------------------------------
    # Create the ibay files and set the password.
    #------------------------------------------------------------

    system("/bin/cp", "-Rp", "/etc/e-smith/skel/ibay",
	"/home/e-smith/files/ibays/$ibayName") == 0
	    or ( $x = 255, warn "Error copying ibay skeletal files" );

    processTemplate( {
	TEMPLATE_PATH=>"/home/e-smith/files/ibays/html/index.html",
	OUTPUT_FILENAME=>"/home/e-smith/files/ibays/$ibayName/html/index.html",
	MORE_DATA=>{IBAY_NAME=>$ibayName},
		} );

    if ($ldapauth ne 'enabled')
    {
        system("/usr/bin/passwd", "-l", $ibayName) == 0
            or ( $x = 255, warn "Error locking (unix) account $ibayName" );
    }

}
elsif ($event eq 'ibay-modify' and $ibayName ne 'Primary')
{
    #------------------------------------------------------------
    # Modify ibay description in /etc/passwd using "usermod"
    #------------------------------------------------------------
    if ($ldapauth ne 'enabled')
    {
        system("/usr/sbin/usermod", "-c", $ibay->prop("Name"),
        "-G", "shared," . $ibay->prop("Group"), "$ibayName") == 0
            or ( $x = 255, warn "Failed to modify (unix) account $ibayName.\n" );
    }

    #------------------------------------------------------------
    # Modify ibay description in ldap"
    #------------------------------------------------------------
    $result = $ldap->ldapuser($ibay);
    $result && ( $x = $ldapauth ne 'enabled' ? $x : 255, warn "Failed to create (ldap) account $ibayName.\n" );

    #------------------------------------------------------------
    # Loop to add new user to groups  "shared,". $ibay->prop("Group")
    #------------------------------------------------------------
    foreach my $grp ( 'shared', $ibay->prop("Group") )  {
        my @groupMembers = ($ibayName);
        $result = $ldap->ldapaddgroupmembers($grp,\@groupMembers);
        # error code 20 is entry already exits.
        $result &&  ( $result != 20 ) && ( $x = $ldapauth ne 'enabled' ? $x : 255, warn "Failed to add (ldap) account $ibayName to supplementary group $grp.\n" );
    }

}

#------------------------------------------------------------
# Fix permissions on ibay files.
#------------------------------------------------------------

#--------------------------------------------------
# main directory is writeable only by root
#--------------------------------------------------
chdir "/home/e-smith/files/ibays/$ibayName"
   or ( $x = 255, warn "Could not chdir to /home/e-smith/files/ibays/$ibayName" );

esmith::util::chownFile("root", "root", ".");
chmod 0755, ".";

#--------------------------------------------------
# fix ownership of subdirectories
#--------------------------------------------------

#--------------------------------------------------
# Set the group as www if it was admin, since 
# while set as admin, the web server no longer has
# access to the ibay HTML directory, and web pages.
#--------------------------------------------------

my %properties = $ibay->props;
$::group = ($properties{'Group'} eq "admin") ? "www" : $properties {'Group'};

# Make sensible defaults
$::owner = undef;
$::fileperm = 0600;
$::dirperm = 0550;

if ($properties {'UserAccess'} eq 'wr-admin-rd-group')
{
    $::owner = "admin";
    $::fileperm = 0640;
    $::dirperm = 02750;
}
elsif ($properties {'UserAccess'} eq 'wr-group-rd-group')
{
    $::fileperm = 0660;
    $::dirperm = 02770;
}
elsif ($properties {'UserAccess'} eq 'wr-group-rd-everyone')
{
    $::fileperm = 0664;
    $::dirperm = 02775;
}
else
{
    warn("Value of UserAccess bad or unset");
}

sub process
{

    if (-l)
    {
	$File::Find::prune = 1;
    }
    else
    {
	esmith::util::chownFile($::owner, $::group, $_);
	if (-d)
	{
	    chmod $::dirperm, $_;
	}
	elsif (-f)
	{
	    # Preserve execute permissions on files
	    my $experm = (stat($_))[2] & 0111;
	    $experm |= $::fileperm;
	    chmod $experm, $_;
	}
    }
}

find(\&process,  glob("*"));

exit ($x);