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#!/usr/bin/perl
# Create, update or delete a scheduled backup

use strict;
use warnings;
no warnings 'redefine';
no warnings 'uninitialized';
require './backup-config-lib.pl';
our (%in, %text, $cron_cmd, $module_name);
&ReadParse();

# Find the backup job
my ($job, $backup);
if (!$in{'new'}) {
	$backup = &get_backup($in{'id'});
	$job = &find_cron_job($backup);
	}
else {
	$backup = { };
	}

if ($in{'delete'}) {
	# Delete the backup
	&delete_backup($backup);
	if ($job) {
		&lock_file(&cron::cron_file($job));
		&cron::delete_cron_job($job);
		&unlock_file(&cron::cron_file($job));
		}
	}
else {
	# Validate inputs
	&error_setup($text{'save_err'});
	my @mods = split(/\0/, $in{'mods'});
	$backup->{'mods'} = join(" ", @mods);
	$backup->{'dest'} = &parse_backup_destination("dest", \%in);
	&cron::parse_times_input($backup, \%in);
	$backup->{'emode'} = $in{'emode'};
	$backup->{'email'} = $in{'email'};
	$backup->{'pre'} = $in{'pre'};
	$backup->{'post'} = $in{'post'};
	$backup->{'sched'} = $in{'sched'};
	($backup->{'configfile'}, $backup->{'nofiles'}, $backup->{'others'}) =
		&parse_backup_what("what", \%in);
	@mods || ($backup->{'nofiles'} && !$backup->{'configfile'}) ||
		&error($text{'save_emods'});

	# Save or create
	&save_backup($backup);
	if ($job) {
		&lock_file(&cron::cron_file($job));
		&cron::delete_cron_job($job);
		}
	if ($in{'sched'}) {
		&cron::create_wrapper($cron_cmd, $module_name, "backup.pl");
		$job = { 'user' => 'root',
			 'command' => "$cron_cmd $backup->{'id'}",
			 'active' => 1,
			 'mins' => $backup->{'mins'},
			 'hours' => $backup->{'hours'},
			 'days' => $backup->{'days'},
			 'months' => $backup->{'months'},
			 'weekdays' => $backup->{'weekdays'},
			 'special' => $backup->{'special'} };
		&lock_file(&cron::cron_file($job));
		&cron::create_cron_job($job);
		}
	&unlock_file(&cron::cron_file($job)) if ($job);
	}
&webmin_log($in{'new'} ? 'create' : $in{'delete'} ? 'delete' : 'modify',
	    'backup', $backup->{'dest'}, $backup);

if ($in{'run'}) {
	# Execute the backup now
	&ui_print_unbuffered_header(undef, $text{'run_title'}, "");

	# Run the pre-backup command, if any
	my $err;
	if ($backup->{'pre'} =~ /\S/) {
		my $preout = &backquote_command(
			"($backup->{'pre'}) 2>&1 </dev/null");
		print &text('email_pre',
			"<tt>".&html_escape($backup->{'pre'})."</tt>")."<br>\n".
			"<pre>".&html_escape($preout)."</pre>\n";
		if ($?) {
			$err = $text{'email_prefailed'};
			}
		}

	my @mods = split(/\s+/, $backup->{'mods'});
	my $nice = &nice_dest($backup->{'dest'}, 1);
	if (!$err) {
		print &text('run_doing', scalar(@mods),
			    "<tt>$nice</tt>"),"<br>\n";
		my $size;
		$err = &execute_backup(
			\@mods, $backup->{'dest'}, \$size, undef,
			$backup->{'configfile'}, $backup->{'nofiles'},
			[ split(/\t+/, $backup->{'others'}) ]);
		}
	if ($err) {
		print "<pre>$err</pre>";
		print "$text{'run_failed'}<p>\n";
		}
	else {
		print "$text{'run_ok'}<p>\n";
		}

	# Run the post-backup command, if any
	if (!$err && $backup->{'post'} =~ /\S/) {
		my $postout = &backquote_command(
			"($backup->{'post'}) 2>&1 </dev/null");
		print &text('email_post',
		      "<tt>".&html_escape($backup->{'post'})."</tt>")."<br>\n".
		      "<pre>".&html_escape($postout)."</pre>\n";
		}

	&webmin_log("run", "backup", $backup->{'dest'}, $backup);
	&ui_print_footer("edit.cgi?id=$in{'id'}", $text{'edit_return'},
			 "index.cgi?mode=sched", $text{'index_return'});
	}
else {
	&redirect("index.cgi?mode=sched");
	}