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View File Name : system_info.pl

use strict;
use warnings;
no warnings 'redefine';
no warnings 'uninitialized';
do 'webmin-lib.pl';
our ($module_var_directory, %gconfig, $hidden_announce_file, $module_name, %text);

our $webmin_announce_url = "https://announce.webmin.com/index.txt";
our $webmin_announce_cache = "$module_var_directory/announce-cache";
our $webmin_announce_cache_time = 24*60*60;

# list_system_info()
# If any, returns announcements to Webmin users
sub list_system_info
{
return ( ) if ($gconfig{'no_announce'});

# Can we use the cache?
my $rawcache = &read_file_contents($webmin_announce_cache);
my $cache = $rawcache ? &unserialise_variable($rawcache) : undef;
my @st = stat($webmin_announce_cache);
my @ann;
if (@st && $st[9] > time() - $webmin_announce_cache_time) {
	# Cache is new enough to use
	@ann = @$cache;
	}
else {
	# Fetch the index of announcements
	my ($host, $port, $page, $ssl) = &parse_http_url($webmin_announce_url);
	return ( ) if (!$host);
	my ($out, $err);
	&http_download($host, $port, $page, \$out, \$err,
		       undef, $ssl, undef, undef, 5);

	if (!$err) {
		# Parse the announcements index file
		$out ||= "";
		foreach my $l (split(/\r?\n/, $out)) {
			$l =~ s/^#.*//;		# Skip comments and spaces
			$l =~ s/^\s+//;
			$l =~ s/\s+$//;
			next if (!$l);
			my ($ahost, $aport, $apage, $assl) =
				&parse_http_url($l, $host, $port, $page, $ssl);
			next if (!$ahost);	# Invalid URL??

			my $afile = &transname();
			&http_download($ahost, $aport, $apage, $afile, \$err,
				       undef, $assl, undef, undef, 5);
			last if ($err);
			my %a = ( 'file' => $l );
			&read_file($afile, \%a);
			&unlink_file($afile);
			push(@ann, \%a);
			}
		}
	if ($err && $cache) {
		# HTTP download failed somewhere, so fall back to the cache
		# and reset it's validity to prevent a failed retry storm
		@ann = @$cache;
		&execute_command("touch ".quotemeta($webmin_announce_cache));
		}
	elsif ($err) {
		# Cannot fetch, and no cache
		return ( );
		}
	else {
		# Write to the cache
		my $fh = "CACHE";
		&open_tempfile($fh, ">$webmin_announce_cache");
		&print_tempfile($fh, &serialise_variable(\@ann));
		&close_tempfile($fh);
		}
	}

# Is Virtualmin or Cloudmin pro installed?
my %vminfo = &get_module_info("virtual-server");
my $vmpro = %vminfo && $vminfo{'version'} !~ /gpl/;
my %cminfo = &get_module_info("server-manager");
my $cmpro = %cminfo && $cminfo{'version'} !~ /gpl/;
my $ver = &get_webmin_version();

# What type of user is this?
my $utype;
if (&foreign_check("virtual-server")) {
	&foreign_require("virtual-server");
	if (&virtual_server::reseller_admin()) {
		$utype = "reseller";
		}
	elsif (&virtual_server::extra_admin()) {
		$utype = "extra";
		}
	elsif (!&virtual_server::master_admin()) {
		$utype = "domain";
		}
	}
if (!$utype && &foreign_check("server-manager")) {
	&foreign_require("server-manager");
	if ($server_manager::access{'owner'}) {
		$utype = "owner";
		}
	}
$utype ||= "master";

# Now we have the announcement hash refs, turn them into messages
my %hide;
&read_file($hidden_announce_file, \%hide);
my @rv;
my $i = 0;
foreach my $a (@ann) {
	# Check if this announcement should be skipped
	next if ($hide{$a->{'file'}});
	next if ($a->{'skip_virtualmin_pro'} && $vmpro);
	next if ($a->{'skip_virtualmin_gpl'} && %vminfo && !$vmpro);
	next if ($a->{'skip_cloudmin_pro'} && $cmpro);
	next if ($a->{'skip_cloudmin_gpl'} && %cminfo && !$cmpro);
	next if ($a->{'skip_pro'} && ($vmpro || $cmpro));
	next if ($a->{'atleast_version'} && &compare_version_numbers($ver, '<', $a->{'atleast_version'}));
	next if ($a->{'atmost_version'} && &compare_version_numbers($ver, '>', $a->{'atmost_version'}));
	next if ($a->{'user_types'} && $a->{'user_types'} !~ /\Q$utype\E/);
	next if ($a->{'beta'} && !$gconfig{'beta_announce'});
	next if ($a->{'depends'} && !&foreign_check($a->{'depends'}));
	next if ($a->{'installed'} &&
		 &foreign_installed($a->{'installed'}, 1) != 2);
	
	(my $id = $a->{'file'}) =~ s/\.//;
	my $info = { 'id' => "announce_".$id,
		     'open' => 1,
		     'desc' => $a->{'title'},
		   };
	my $hide = &ui_link_button(
		&get_webprefix()."/$module_name/hide.cgi?id=".&urlize($a->{'file'}),
		$text{'announce_hide'});
	if ($a->{'type'} eq 'warning') {
		# A warning message
		$info->{'type'} = 'warning';
		$info->{'level'} = $a->{'level'} || 'info';
		$info->{'warning'} = &html_escape($a->{'message'})."<p>\n";
		for(my $b=0; defined($a->{'link'.$b}); $b++) {
			my $link = $a->{'link'.$b};
			$link = &get_webprefix().$link
				if (&get_webprefix() && $link =~ /^\//);
			$info->{'warning'} .= &ui_link_button(
				$link, $a->{'desc'.$b}, "_new")."\n";
			}
		$info->{'warning'} .= $hide;
		}
	elsif ($a->{'type'} eq 'message') {
		# A message possibly with some buttons
		$info->{'type'} = 'html';
		$info->{'level'} = $a->{'level'};
		$info->{'html'} = &html_escape($a->{'message'})."<p>\n";
		for(my $b=0; defined($a->{'link'.$b}); $b++) {
			my $link = $a->{'link'.$b};
			$link = &get_webprefix().$link
				if (&get_webprefix() && $link =~ /^\//);
			$info->{'html'} .= &ui_link_button(
				$link, $a->{'desc'.$b}, "_new")."\n";
			}
		$info->{'html'} .= $hide;
		}
	else {
		# Unknown type??
		next;
		}
	push(@rv, $info);
	}
return @rv;
}