Viewing file:  cluster-webmin-lib.pl (7.03 KB) -rwxr-xr-x
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# cluster-webmin-lib.pl
# Common functions for managing webmin installs across a cluster
BEGIN { push(@INC, ".."); };
use WebminCore;
&init_config();
&foreign_require("servers", "servers-lib.pl");
# list_webmin_hosts()
# Returns a list of all hosts whose webmin modules are being managed
sub list_webmin_hosts
{
local %smap = map { $_->{'id'}, $_ } &list_servers();
local $hdir = "$module_config_directory/hosts";
opendir(DIR, $hdir);
local ($h, @rv);
foreach $h (readdir(DIR)) {
next if ($h eq "." || $h eq ".." || !-d "$hdir/$h");
local %host = ( 'id', $h );
next if (!$smap{$h}); # underlying server was deleted
local $f;
opendir(MDIR, "$hdir/$h");
foreach $f (readdir(MDIR)) {
if ($f =~ /^(\S+)\.mod$/) {
local %mod;
&read_file("$hdir/$h/$f", \%mod);
push(@{$host{'modules'}}, \%mod);
}
elsif ($f =~ /^(\S+)\.theme$/) {
local %theme;
&read_file("$hdir/$h/$f", \%theme);
push(@{$host{'themes'}}, \%theme);
}
elsif ($f =~ /^(\S+)\.user$/) {
local %user;
&read_file("$hdir/$h/$f", \%user);
$user{'modules'} = [ split(/\s+/, $user{'modules'}) ];
$user{'ownmods'} = [ split(/\s+/, $user{'ownmods'}) ];
push(@{$host{'users'}}, \%user);
}
elsif ($f =~ /^(\S+)\.group$/) {
local %group;
&read_file("$hdir/$h/$f", \%group);
$group{'modules'} = [ split(/\s+/, $group{'modules'}) ];
$group{'ownmods'} = [ split(/\s+/, $group{'ownmods'}) ];
$group{'members'} = [ split(/\s+/, $group{'members'}) ];
push(@{$host{'groups'}}, \%group);
}
elsif ($f eq "webmin") {
&read_file("$hdir/$h/$f", \%host);
}
}
closedir(MDIR);
push(@rv, \%host);
}
closedir(DIR);
return @rv;
}
# save_webmin_host(&host)
sub save_webmin_host
{
local $hdir = "$module_config_directory/hosts";
local %oldfile;
mkdir($hdir, 0700);
if (-d "$hdir/$_[0]->{'id'}") {
opendir(DIR, "$hdir/$_[0]->{'id'}");
map { $oldfile{$_}++ } readdir(DIR);
closedir(DIR);
}
else {
mkdir("$hdir/$_[0]->{'id'}", 0700);
}
local $m;
foreach $m (@{$_[0]->{'modules'}}) {
&write_file("$hdir/$_[0]->{'id'}/$m->{'dir'}.mod", $m);
delete($oldfile{"$m->{'dir'}.mod"});
}
foreach $m (@{$_[0]->{'themes'}}) {
&write_file("$hdir/$_[0]->{'id'}/$m->{'dir'}.theme", $m);
delete($oldfile{"$m->{'dir'}.theme"});
}
foreach $m (@{$_[0]->{'users'}}) {
local %u = %$m;
$u{'modules'} = join(" ", @{$u{'modules'}});
$u{'ownmods'} = join(" ", @{$u{'ownmods'}});
&write_file("$hdir/$_[0]->{'id'}/$u{'name'}.user", \%u);
delete($oldfile{"$u{'name'}.user"});
}
foreach $m (@{$_[0]->{'groups'}}) {
local %g = %$m;
$g{'modules'} = join(" ", @{$g{'modules'}});
$g{'ownmods'} = join(" ", @{$g{'ownmods'}});
$g{'members'} = join(" ", @{$g{'members'}});
&write_file("$hdir/$_[0]->{'id'}/$g{'name'}.group", \%g);
delete($oldfile{"$g{'name'}.group"});
}
local %webmin = %{$_[0]};
delete($webmin{'modules'});
delete($webmin{'themes'});
delete($webmin{'users'});
delete($webmin{'groups'});
delete($webmin{'id'});
&write_file("$hdir/$_[0]->{'id'}/webmin", \%webmin);
delete($oldfile{"webmin"});
unlink(map { "$hdir/$_[0]->{'id'}/$_" } keys %oldfile);
}
# delete_webmin_host(&host)
sub delete_webmin_host
{
system("rm -rf '$module_config_directory/hosts/$_[0]->{'id'}'");
}
# list_servers()
# Returns a list of all servers from the webmin servers module that can be
# managed, plus this server
sub list_servers
{
local @servers = &servers::list_servers_sorted();
return ( &servers::this_server(), grep { $_->{'user'} } @servers );
}
# server_name(&server)
sub server_name
{
return $_[0]->{'desc'} ? $_[0]->{'desc'} : $_[0]->{'host'};
}
# all_modules(&hosts)
sub all_modules
{
local (%done, $u, %descc);
local @uniq = grep { !$done{$_->{'dir'}}++ } map { @{$_->{'modules'}} } @{$_[0]};
map { $descc{$_->{'desc'}}++ } @uniq;
foreach $u (@uniq) {
$u->{'desc'} .= " ($u->{'dir'})" if ($descc{$u->{'desc'}} > 1);
}
return sort { $a->{'desc'} cmp $b->{'desc'} } @uniq;
}
# all_themes(&hosts)
sub all_themes
{
local %done;
return sort { $a->{'desc'} cmp $b->{'desc'} }
grep { !$done{$_->{'dir'}}++ }
map { @{$_->{'themes'}} } @{$_[0]};
}
# all_groups(&hosts)
sub all_groups
{
local %done;
return sort { $a->{'name'} cmp $b->{'name'} }
grep { !$done{$_->{'name'}}++ }
map { @{$_->{'groups'}} } @{$_[0]};
}
# all_users(&hosts)
sub all_users
{
local %done;
return sort { $a->{'name'} cmp $b->{'name'} }
grep { !$done{$_->{'name'}}++ }
map { @{$_->{'users'}} } @{$_[0]};
}
# create_on_input(desc, [no-donthave], [no-have], [multiple])
sub create_on_input
{
local @hosts = &list_webmin_hosts();
local @servers = &list_servers();
if ($_[0]) {
print "<tr> <td><b>$_[0]</b></td>\n";
print "<td>\n";
}
if ($_[3]) {
print "<select name=server size=5 multiple>\n";
}
else {
print "<select name=server>\n";
}
print "<option value=-1>$text{'user_all'}\n";
print "<option value=-2>$text{'user_donthave'}\n" if (!$_[1]);
print "<option value=-3>$text{'user_have'}\n" if (!$_[2]);
local @groups = &servers::list_all_groups(\@servers);
local $h;
foreach $h (@hosts) {
local ($s) = grep { $_->{'id'} == $h->{'id'} } @servers;
if ($s) {
print "<option value='$s->{'id'}'>",
$s->{'desc'} ? $s->{'desc'} : $s->{'host'},"\n";
$gothost{$s->{'host'}}++;
}
}
local $g;
foreach $g (@groups) {
local ($found, $m);
foreach $m (@{$g->{'members'}}) {
($found++, last) if ($gothost{$m});
}
print "<option value='group_$g->{'name'}'>",
&text('user_ofgroup', $g->{'name'}),"\n" if ($found);
}
print "</select>\n";
if ($_[0]) {
print "</td> </tr>\n";
}
}
# create_on_parse(prefix, &already, name, [no-print])
sub create_on_parse
{
local @allhosts = &list_webmin_hosts();
local @servers = &list_servers();
local @hosts;
local $server;
foreach $server (split(/\0/, $in{'server'})) {
if ($server == -2) {
# Install on hosts that don't have it
local %already = map { $_->{'id'}, 1 } @{$_[1]};
push(@hosts, grep { !$already{$_->{'id'}} } @allhosts);
print "<b>",&text($_[0].'3', $_[2]),"</b><p>\n" if (!$_[3]);
}
elsif ($server == -3) {
# Install on hosts that do have it
local %already = map { $_->{'id'}, 1 } @{$_[1]};
push(@hosts, grep { $already{$_->{'id'}} } @allhosts);
print "<b>",&text($_[0].'6', $_[2]),"</b><p>\n" if (!$_[3]);
}
elsif ($server =~ /^group_(.*)/) {
# Install on members of some group
local ($group) = grep { $_->{'name'} eq $1 }
&servers::list_all_groups(\@servers);
push(@hosts, grep { local $hid = $_->{'id'};
local ($s) = grep { $_->{'id'} == $hid } @servers;
&indexof($s->{'host'}, @{$group->{'members'}}) >= 0 }
@allhosts);
print "<b>",&text($_[0].'4', $_[2], $group->{'name'}),
"</b><p>\n" if (!$_[3]);
}
elsif ($server != -1) {
# Just install on one host
local ($onehost) = grep { $_->{'id'} == $server }
@allhosts;
push(@hosts, $onehost);
local ($s) = grep { $_->{'id'} == $onehost->{'id'} } @servers;
print "<b>",&text($_[0].'5', $_[2],
&server_name($s)),"</b><p>\n" if (!$_[3]);
}
else {
# Installing on every host
push(@hosts, @allhosts);
print "<b>",&text($_[0], join(" ", @names)),
"</b><p>\n" if (!$_[3]);
}
}
return &unique(@hosts);
}
1;
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