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#!/usr/bin/perl

# Drakwizard

# Copyright (C) 2002 Arnaud Desmons <adesmons@mandrakesoft.com>
#               2003 Florent Villard <warly@mandrakesoft.com>
#
# 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, 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 MDK::Wizard::Apache;
use strict;

use common;
use MDK::Wizard::Wizcommon;
use MDK::Wizard::Varspaceval;

my $wiz = new MDK::Wizard::Wizcommon;

my $file;
my $root;

my $config;
my $o = { 
    name => N('Web wizard'),
    var => { 
	web_internal => '',
	web_external => '',
	user_mod => '',
	user_dir => '',
	shared_dir => ''
    },
    needed_rpm => [ ( $config->{ver} == 2 ? 'apache2' : 'apache') ]
};

$o->{pages} = { 
	      welcome => {
		  name => N('Web Server Configuration Wizard') . "\n\n" . N('This wizard will help you configuring the Web Server for your network.'),
		  post => sub { $wiz->check_dhcp },
	      no_back => 1,
	      next => 'config'
	  },
	  config => {
	      name => N('Web Server') . "\n\n" . N('Your server can act as a Web Server toward your internal network (intranet) and as a Web Server for the Internet.') . "\n\n" . N('Select the kind of Web service you want to activate:') . "\n\n" . N('Don\'t check any box if you don\'t want to activate your Web Server.'),
	      data => [
		  { label => '' },
		  { text => N('Enable the Web Server for the Intranet'), type => 'bool', val => \$o->{var}{web_internal} },
		  { text => N('Enable the Web Server for the Internet'), type => 'bool', val => \$o->{var}{web_external} },
		  ],
	      next => 'ask_mod'
	  },
	  dhcp_warning => {
	    name => N('Warning.'),
	    data => [ { label => N('You are in dhcp, server may not work with your configuration.') } ],
	    next => 'summary'
	  },
	  ask_mod => {
	      name => N('Modules :') . "\n\n" . N('* User module : allows users to have a directory in their home directories available on your http server via http://www.yourserver.com/~user, you will be asked for the name of this directory afterward.'),
	      pre => sub { $o->{var}{user_mod} = is_last_user_mod()},
	      data => [
		  { label => '' },
		  { text => N('Allows users to get a directory in their homes directories 
available on your http server via http://www.yourserver.com/~user.'), type => 'bool', val => \$o->{var}{user_mod} },
		  ],
	      post => sub { return 'user_dir' if $o->{var}{user_mod} },
	      next => 'ask_dir'
	  },
	  user_dir => {
	      name => N('Type the name of the directory users should create in their homes (whitout ~/) to get it available via http://www.yourserver.com/~user'),
	      pre => sub { $o->{var}{user_dir} ||= 'public_html' },
	      data => [
		  { label => '' },
		  { label => N('user http sub-directory : ~/'), help => N('Type the name of the directory users should create in their homes (whitout ~/) to get it available via http://www.yourserver.com/~user'), val => \$o->{var}{user_dir} },
		  ],
	      next => 'ask_dir'
	  },
	  ask_dir => {
	      name => N('Type the path of the directory you want being the document root.'),
	      pre => sub { $o->{var}{shared_dir} ||= $root },
	      data => [
		  { label => '' },
		  { label => N('Document Root:'),  val => \$o->{var}{shared_dir} },
		  ],
	      post => \&check_dir,
	      next => 'summary'
	  },
	  error_in_dir => {
	    name => N('Error.'),
	    data => [ { label => '' }, 
	              { label => N('The path you entered does not exist.') } ],
	    next => 'ask_dir'
	  },
	  error => {
	    name => N('Error.'),
	    data => [ { label => N('') } ],
	    next => 'config'
	  },
	  summary => {
	    name =>  N('Configuring the Web Server') . "\n\n" . N('The wizard collected the following parameters needed to configure your Web Server') . "\n\n" . N('To accept these values, and configure your server, click the Next button or use the Back button to correct them.'),
	    pre => sub {
		$o->{var}{internal} = $o->{var}{web_internal} ? N("enabled") : N("disabled");
		$o->{var}{external} = $o->{var}{web_external} ? N("enabled") : N("disabled")
	    },
	    data => [
		  { label => N('Intranet web server:'), fixed_val => \$o->{var}{internal} },
		  { label => '' },
		  { label => N('Internet web server:'), fixed_val => \$o->{var}{external} },
		  { label => '' },
		  { label => N('Document root:'), fixed_val => \$o->{var}{shared_dir} },
		  { label => '' },
		  { label => N('User directory:'), fixed_val => \$o->{var}{user_dir} },
	      ],
	    post => \&do_it,
	    next => 'end'
	  },
	  end => { 
	    name => N('Congratulation'),
	    data => [ 
	        { label => '' },
	        { label => N('The wizard successfully configured your Intranet/Internet Web Server') } ], 
	    end => 1,
	    next => 0
      },
};

sub new {
    my ($class, $conf) = @_;
    $config = $conf;
    $file = $config->{ver} == 2 ? "/etc/httpd/conf/httpd2.conf" : "/etc/httpd/conf/httpd.conf";
    if (-f $file) {
	open my $FH, $file or die "$! ($file)";
	while (<$FH>) {
	    if (/^\s*\#?\s*DocumentRoot\s+(.*)/) {
		close($FH);
		$root = $1;
		print "ROOT $root\n";
		last;
	    }
	}
	close($FH);
    } else {
	return (0, N("%s does not exist.", $file))
    }
    bless {
	o   => $o,
    }, $class;
}

sub check_dir {
    -d $o->{var}{shared_dir} or return 'error_in_dir'
}

sub chg_docroot {
    my $old;
    substInFile {
	s|(^\s*\#?\s*DocumentRoot\s*)(\S*).*|$1$o->{var}{shared_dir}| and $old ||=$2;
    } $file;

    substInFile {
	s|^\s*<Directory\s*$old/?>|<Directory $o->{var}{shared_dir}>|;
    } "/etc/httpd/conf/commonhttpd.conf" if $old;

    substInFile {
	s|^\s*<Directory\s*/var/www/html/?>|<Directory $o->{var}{shared_dir}>|;
    } "/etc/httpd/conf/commonhttpd.conf";
}

sub is_user_mod {
    if ($o->{var}{user_mod}) {
	return 1;
    }
    $o->{var}{user_mod} = "disabled";
    0;
}

sub is_last_user_mod {
    my $root = get_user_dir();
    chomp($root);
    !($root eq 'disabled');
}

sub get_user_dir {
    my %conf = Varspaceval->get("/etc/httpd/conf/commonhttpd.conf");    
    $conf{UserDir};
}

sub chg_user_dir {
    my  $root = get_user_dir();
    if ($o->{var}{user_mod}) {
	substInFile {
	    s|(/home/\*/)$root(/?)|$1$o->{var}{user_dir}$2|g;
	} "/etc/httpd/conf/commonhttpd.conf";
	substInFile {
	    s|(\s*)UserDir\s*$root(/?)|$1UserDir $o->{var}{user_dir}$2|g;
	    s|(/home/\*/)$root(/?)|$1$o->{var}{user_dir}$2|g;
	} "/etc/httpd/conf/commonhttpd.conf";
    }
    else {
	substInFile {
	    s|(\s*)UserDir\s*$root(/?)|$1UserDir disabled$2|g;
	} "/etc/httpd/conf/commonhttpd.conf";
    }
}

sub do_it {
    $::DEBUG and return;
    my	$file = "/etc/httpd/conf/commonhttpd.conf";
    my	$that = "localhost";

    if ($o->{var}{web_external} eq "1") {
	$that = "all";
    }
    elsif ($o->{var}{web_internal} eq "1") {
	($that) = $o->itf_get("IPADDR") =~ qr/^(\d{1,3}\.\d{1,3}\.\d{1,3}\.)\d{1,3}$/;
	$that .= " 127.0.0.1";
    }
    cp_af($file, $file.".orig");
    substInFile {    
	if( m /^\s*<Directory.*>/s...m/^\s*<\/Directory>/s ) {
	    { s /^\s*Allow .*$/    Allow from $that\n/s;}
	    ;}
	} $file;
	chg_docroot();
	chg_user_dir();
	system("/etc/rc.d/init.d/httpd restart");
}

1;