#!perl -w

###########################################################################
#
# webpage_editcol.pl --
# A component of the Greenstone digital library software
# from the New Zealand Digital Library Project at the 
# University of Waikato, New Zealand.
#
# Copyright (C) 1999 New Zealand Digital Library Project
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
###########################################################################

# This program is a webpage wrapper for saving an edited config file

package webpage_editcol;

use CGI;
use GSDLHOME;
use gflock;

require util;
require webpageutil;

sub parse_cgiargs
{
    # get arguments
    my $cgi = new CGI;
    my %args = ();

    foreach $p ($cgi->param()) 
    { 
	$args{$p} = $cgi->param($p);
    }

    return \%args;
}



sub main
{
    # get arguments
    my $args = parse_cgiargs();

    my $dirname = $args->{'bc1dirname'};
    if (!defined($dirname))
    {
	# directory name derived from the collection name missing
	my $mess = "Directory name for collection missing.";
	&webpageutil::error_location($args,$mess);
	return;
    }

    my $cfg_filename 
	= &util::filename_cat($ENV{'GSDLHOME'},"collect",$dirname,"etc","collect.cfg");

    if (open(CFGOUT,">$cfg_filename"))
    {
	binmode (CFGOUT); # windows
	
	if (&gflock::lock (webpage_editcol::CFGOUT)) {
	    my $cfg_text = $args->{'bc1cfgfile'};
	    print CFGOUT "$cfg_text";
	    &gflock::unlock (webpage_editcol::CFGOUT);
	    close(CFGOUT);
	}
	else
	{
	    # problem locking file
	    my $mess = "Unable to lock configuration file: $cfg_filename";
	    &webpageutil::error_location($args,$mess);
	    return;
	}
    }
    else
    {
	# unable to open configuration file for writing
	my $mess = "Unable to open for writing configuration file: $cfg_filename";
	&webpageutil::error_location($args,$mess);
	return;
    }

    my $mess_url = "$args->{'httpbuild'}&bca=mess&bc1dirname=$dirname";
    print "Location: $mess_url&head=_headdone_&mess=_messdoneeditcol_\n\n";
    return;

}

&main();