Viewing file:  update.cgi (4.1 KB) -rwxr-xr-x
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#!/usr/bin/perl
# update.cgi
# Download and install needed updates on multiple servers
require './cluster-usermin-lib.pl';
&foreign_require("webmin", "webmin-lib.pl");
&ReadParse();
&error_setup($webmin::text{'update_err'});
# Fetch list of updates
($updates, $host, $port, $page, $ssl) = &webmin::fetch_updates(
$in{'source'} == 0 ? $webmin::update_url : $in{'other'});
# Build list of selected hosts, and show them
@servers = &list_servers();
&ui_print_unbuffered_header(undef, $text{'update_title'}, "");
@hosts = &create_on_parse("update_header", undef, undef);
# Setup error handler for down hosts
sub inst_error
{
$inst_error_msg = join("", @_);
}
&remote_error_setup(\&inst_error);
# Run the update, on all hosts in parallel
$p = 0;
foreach $h (@hosts) {
local ($s) = grep { $_->{'id'} == $h->{'id'} } @servers;
$s || &error("Failed to find server for $h->{'id'}");
local ($rh = "READ$p", $wh = "WRITE$p");
pipe($rh, $wh);
select($wh); $| = 1; select(STDOUT);
if (!fork()) {
# Do the install in a subprocess
close($rh);
&remote_foreign_require($s->{'host'}, "webmin",
"webmin-lib.pl");
if ($inst_error_msg) {
# Failed to contact host ..
print $wh &serialise_variable($inst_error_msg);
exit;
}
# Work out which modules are needed
local @rv;
local $bv = &remote_foreign_call(
$s->{'host'}, "webmin",
"get_webmin_base_version");
foreach $u (@$updates) {
local %minfo = &remote_foreign_call(
$s->{'host'}, "webmin",
"get_module_info", $u->[0]);
local %tinfo = %minfo ? () :
&remote_foreign_call(
$s->{'host'}, "webmin",
"get_theme_info", $u->[0]);
local %info = %minfo ? %minfo : %tinfo;
next if (($u->[1] >= $bv + .01 ||
$u->[1] < $bv) &&
(!%info || $info{'longdesc'} || !$in{'third'}));
# Check if update is appropriate
$count++;
if (!%info && !$in{'missing'}) {
push(@rv, &webmin::text('update_mmissing',
"<b>$u->[0]</b>"));
next;
}
if (%info && $info{'version'} >= $u->[1]) {
push(@rv, &webmin::text('update_malready',
"<b>$u->[0]</b>"));
next;
}
local $osinfo = { 'os_support' => $u->[3] };
if (!&check_os_support($osinfo)) {
push(@rv, &webmin::text('update_mos',
"<b>$u->[0]</b>"));
next;
}
if ($in{'show'}) {
# Just send back info
push(@rv, [ 0, @$u ]);
}
else {
# Do the update!
($mhost, $mport, $mpage, $mssl) =
&parse_http_url($u->[2], $host, $port, $page, $ssl);
$mtemp = &remote_foreign_call(
$s->{'host'}, "webmin", "tempname");
local $err;
&remote_foreign_call(
$s->{'host'}, "webmin",
"http_download", $mhost, $mport,
$mpage, $mtemp, \$err, undef, $mssl);
if ($err) {
# Download failed
push(@rv, $err);
}
else {
# Do the install
$irv = &remote_foreign_call(
$s->{'host'}, "webmin",
"install_webmin_module",
$mtemp, 1, 0,
[ $base_remote_user ]);
if (ref($irv)) {
push(@rv, [ 1, @$u ]);
}
else {
push(@rv, $irv);
}
}
}
}
print $wh &serialise_variable(\@rv);
close($wh);
exit;
}
close($wh);
$p++;
}
# Get back all the results
$p = 0;
foreach $h (@hosts) {
local $rh = "READ$p";
local $line = <$rh>;
close($rh);
local $rv = &unserialise_variable($line);
local ($s) = grep { $_->{'id'} == $h->{'id'} } @servers;
local $d = &server_name($s);
print &text('update_onhost', $d),"<br>\n";
if (!$line) {
print &text('update_failed', "Unknown reason"),"<p>\n";
}
elsif (!ref($rv)) {
print &text('update_failed', $rv),"<p>\n";
}
elsif (!@$rv) {
print &text('update_none', $rv),"<p>\n";
}
else {
# Show list of modules
print "<ul>\n";
foreach $u (@$rv) {
if (ref($u)) {
# A module
print &webmin::text($u->[0] ? 'update_mok' : 'update_mshow', "<b>$u->[1]</b>", "<b>$u->[2]</b>"),"<br>\n";
print " $webmin::text{'update_fixes'} : $u->[5]<br>\n";
}
else {
# Some message
print $u,"<br>\n";
}
}
print "</ul><p>\n";
}
$p++;
}
print "<p><b>$text{'upgrade_done'}</b><p>\n";
&remote_finished();
&ui_print_footer("", $text{'index_return'});
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