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cluster-webmin-lib.pl
# 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'}) ]; $user{'olds'} = [ split(/\s+/, $user{'olds'}) ]; push(@{$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'}}); $u{'olds'} = join(" ", @{$u{'olds'}}); &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]->{'id'} == 0 ? &get_system_hostname() : $_[0]->{'host'}). ($_[0]->{'desc'} ? " (".$_[0]->{'desc'}.")" : ""); } # 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'}} } @{$_[0]}; } # create_on_input(desc, [no-donthave], [no-have], [multiple], [colspan]) sub create_on_input { local @hosts = &list_webmin_hosts(); local @servers = &list_servers(); if ($_[0]) { print "<tr> <td><b>$_[0]</b></td>\n"; my $colspan = "colspan=$_[4]" if ($_[4]); print "<td $colspan>\n"; } if ($_[3]) { print "<select name=server size=5 multiple>\n"; } else { print "<select name=server>\n"; } print "<option value=-1>$text{'user_all'}</option>\n"; print "<option value=-2>$text{'user_donthave'}</option>\n" if (!$_[1]); print "<option value=-3>$text{'user_have'}</option>\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'},"</option>\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', $g->{'name'}),"</option>\n" if ($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;