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341 lines
7.8 KiB
Perl
341 lines
7.8 KiB
Perl
# Functions for editing the minecraft config
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#
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# XXX java param options
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# XXX plugins?
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# XXX world reset
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BEGIN { push(@INC, ".."); };
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use strict;
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use warnings;
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use WebminCore;
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use Time::Local;
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&init_config();
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our ($module_root_directory, %text, %gconfig, $root_directory, %config,
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$module_name, $remote_user, $base_remote_user, $gpgpath,
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$module_config_directory, @lang_order_list, @root_directories);
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our $history_file = "$module_config_directory/history.txt";
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# check_minecraft_server()
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# Returns an error message if the Minecraft server is not installed
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sub check_minecraft_server
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{
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-d $config{'minecraft_dir'} ||
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return &text('check_edir', $config{'minecraft_dir'});
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my $jar = $config{'minecraft_jar'} ||
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$config{'minecraft_dir'}."/"."minecraft_server.jar";
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-r $jar ||
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return &text('check_ejar', $jar);
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&has_command($config{'java_cmd'}) ||
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return &text('check_ejava', $config{'java_cmd'});
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return undef;
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}
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# is_minecraft_server_running()
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# If the minecraft server is running, return the PID
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sub is_minecraft_server_running
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{
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&foreign_require("proc");
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my @procs = &proc::list_processes();
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my $jar = $config{'minecraft_jar'} ||
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$config{'minecraft_dir'}."/"."minecraft_server.jar";
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my $shortjar = $jar;
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$shortjar =~ s/^.*\///;
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foreach my $p (@procs) {
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if ($p->{'args'} =~ /\Q$config{'java_cmd'}\E.*(\Q$jar\E|\Q$shortjar\E)/) {
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return $p->{'pid'};
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}
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}
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return undef;
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}
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# get_minecraft_config()
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# Parses the config into an array ref of hash refs
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sub get_minecraft_config
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{
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my @rv;
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my $fh = "CONFIG";
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my $lnum = 0;
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&open_readfile($fh, $config{'minecraft_dir'}."/server.properties") ||
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return [ ];
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while(<$fh>) {
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s/\r|\n//g;
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s/#.*$//;
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if (/^([^=]+)=(.*)/) {
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push(@rv, { 'name' => $1,
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'value' => $2,
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'line' => $lnum });
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}
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$lnum++;
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}
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close($fh);
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return \@rv;
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}
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# get_start_command()
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# Returns a command to start the server
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sub get_start_command
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{
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my $jar = $config{'minecraft_jar'} ||
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$config{'minecraft_dir'}."/"."minecraft_server.jar";
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my $ififo = &get_input_fifo();
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my $rv = "(test -e ".$ififo." || mkfifo ".$ififo.") ; ".
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"cd ".$config{'minecraft_dir'}." && ".
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"(tail -f ".$ififo." | ".
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&has_command($config{'java_cmd'})." ".
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$config{'java_args'}." ".
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" -jar ".$jar." nogui ".
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$config{'jar_args'}." ".
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">> server.out 2>&1 )";
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return $rv;
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}
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sub get_output_fifo
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{
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return $config{'minecraft_dir'}."/output.fifo";
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}
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sub get_input_fifo
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{
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return $config{'minecraft_dir'}."/input.fifo";
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}
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# start_minecraft_server()
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# Launch the minecraft server in the background
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sub start_minecraft_server
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{
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my $cmd = &get_start_command();
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&system_logged("$cmd &");
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sleep(1);
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if (!&is_minecraft_server_running()) {
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my $out = &backquote_command(
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"tail -2 ".$config{'minecraft_dir'}."/server.out");
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return $out || "Unknown error - no output produced";
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}
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return undef;
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}
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# stop_minecraft_server()
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# Kill the server, if running
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sub stop_minecraft_server
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{
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my $pid = &is_minecraft_server_running();
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$pid || return "Not running!";
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# Try graceful shutdown
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&send_server_command("stop");
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for(my $i=0; $i<10; $i++) {
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last if (!&is_minecraft_server_running());
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sleep(1);
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}
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# Clean kill
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if (&is_minecraft_server_running()) {
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kill('TERM', $pid);
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for(my $i=0; $i<10; $i++) {
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last if (!&is_minecraft_server_running());
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sleep(1);
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}
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}
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# Fatal kill
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if (&is_minecraft_server_running()) {
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kill('KILL', $pid);
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}
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return undef;
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}
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# send_server_command(command)
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# Just sends a command to the server
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sub send_server_command
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{
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my ($cmd) = @_;
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my $ififo = &get_input_fifo();
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my $fh = "FIFO";
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&open_tempfile($fh, ">$ififo", 1, 1, 1);
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&print_tempfile($fh, $cmd."\n");
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&close_tempfile($fh);
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}
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# execute_minecraft_command(command)
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# Run a command, and return output from the server log
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sub execute_minecraft_command
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{
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my ($cmd) = @_;
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my $logfile = $config{'minecraft_dir'}."/server.log";
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my $fh = "LOG";
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&open_readfile($fh, $logfile);
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seek($fh, 0, 2);
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my $pos = tell($fh);
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&send_server_command($cmd);
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for(my $i=0; $i<100; $i++) {
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select(undef, undef, undef, 0.1);
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my @st = stat($logfile);
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last if ($st[7] > $pos);
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}
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my $out;
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while(<$fh>) {
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$out .= $_;
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}
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close($fh);
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return wantarray ? split(/\r?\n/, $out) : $out;
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}
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# get_command_history()
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# Returns the history of commands run
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sub get_command_history
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{
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my $lref = &read_file_lines($history_file);
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return @$lref;
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}
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# save_command_history(&commands)
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sub save_command_history
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{
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my ($cmds) = @_;
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my $lref = &read_file_lines($history_file);
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@$lref = @$cmds;
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&flush_file_lines($history_file);
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}
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# list_connected_players()
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# Returns a list of players currently online
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sub list_connected_players
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{
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my @out = &execute_minecraft_command("/list");
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my @rv;
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foreach my $l (@out) {
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if ($l =~ /\[INFO\]\s+(\S+)$/) {
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push(@rv, $1);
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}
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}
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return @rv;
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}
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# get_login_logout_times(player)
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# Returns the last login IP, time, X, Y, Z and logout time (if any)
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sub get_login_logout_times
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{
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my ($name) = @_;
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my ($ip, $intime, $xx, $yy, $zz, $outtime);
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my $logfile = $config{'minecraft_dir'}."/server.log";
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my $fh = "TAIL";
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&open_execute_command($fh, "tail -10000 $logfile", 1, 1);
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while(<$fh>) {
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if (/^(\d+)\-(\d+)\-(\d+)\s+(\d+):(\d+):(\d+)\s+\[\S+\]\s+(.*)/) {
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my ($y, $mo, $d, $h, $m, $s, $msg) =($1, $2, $3, $4, $5, $6, $7);
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if ($msg =~ /^\Q$name\E\[.*\/([0-9\.]+):(\d+)\]\s+logged\s+in.*\((\-?[0-9\.]+),\s+(\-?[0-9\.]+),\s+(\-?[0-9\.]+)\)/) {
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# Login message
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$ip = $1;
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($xx, $yy, $zz) = ($3, $4, $5);
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$intime = &parse_log_time($y, $m, $d, $h, $mo, $s);
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}
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elsif ($msg =~ /^\Q$name\E\s+lost/) {
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# Logout message
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$outtime = &parse_log_time($y, $m, $d, $h, $mo, $s);
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}
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}
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}
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close($fh);
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return ( $ip, $intime, $xx, $yy, $zz, $outtime );
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}
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sub parse_log_time
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{
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my ($y, $m, $d, $h, $mo, $s) = @_;
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return timelocal($s, $m, $h, $d, $mo-1, $y-1900);
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}
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# item_chooser_button(fieldname)
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sub item_chooser_button
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{
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my ($field) = @_;
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return "<input type=button onClick='ifield = document.forms[0].$field; chooser = window.open(\"item_chooser.cgi?item=\"+escape(ifield.value), \"chooser\", \"toolbar=no,menubar=no,scrollbars=yes,width=400,height=600\"); chooser.ifield = ifield; window.ifield = ifield' value=\"...\">\n";
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}
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# list_minecraft_items()
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# Returns a list of hash refs with id and name keys
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# CSV generated with :
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# wget -O - http://minecraft-ids.grahamedgecombe.com/ | grep /items/ | perl -ne 's/.*items.([0-9:]+)">([^<]+)<.*/$1,$2/; print ' > items.csv
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sub list_minecraft_items
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{
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my $fh = "ITEMS";
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&open_readfile($fh, "$module_root_directory/items.csv");
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my @rv;
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while(<$fh>) {
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s/\r|\n//g;
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my ($id, $name) = split(/,/, $_);
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push(@rv, { 'id' => $id,
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'name' => $name });
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}
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close($fh);
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return @rv;
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}
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# list_banned_players()
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# Returns a list of players who are banned
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sub list_banned_players
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{
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my @out = &execute_minecraft_command("/banlist");
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my @rv;
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foreach my $l (@out) {
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if ($l =~ /\[INFO\]\s+(\S+)$/) {
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push(@rv, $1);
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}
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}
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return @rv;
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}
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# list_whitelisted_players()
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# Returns a list of players who are whitelisted
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sub list_whitelisted_players
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{
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my @out = &execute_minecraft_command("/whitelist");
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my @rv;
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foreach my $l (@out) {
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if ($l =~ /\[INFO\]\s+(\S+)$/) {
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push(@rv, $1);
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}
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}
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return @rv;
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}
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# list_whitelist_users()
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# Returns a list of usernames on the whitelist
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sub list_whitelist_users
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{
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my $lref = &read_file_lines($config{'minecraft_dir'}.'/white-list.txt', 1);
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return @$lref;
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}
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# save_whitelist_users(&users)
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# Update the usernames on the whitelist
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sub save_whitelist_users
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{
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my ($users) = @_;
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my $lref = &read_file_lines($config{'minecraft_dir'}.'/white-list.txt');
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@$lref = @$users;
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&flush_file_lines($config{'minecraft_dir'}.'/white-list.txt');
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}
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# list_op_users()
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# Returns a list of usernames on the operator list
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sub list_op_users
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{
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my $lref = &read_file_lines($config{'minecraft_dir'}.'/ops.txt', 1);
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return @$lref;
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}
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# save_op_users(&users)
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# Update the usernames on the operator list
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sub save_op_users
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{
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my ($users) = @_;
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my $lref = &read_file_lines($config{'minecraft_dir'}.'/ops.txt');
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@$lref = @$users;
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&flush_file_lines($config{'minecraft_dir'}.'/ops.txt');
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}
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1;
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