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Util.pm
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# ===============================================================================================================
# SrvrPowerCtrl - a plugin for SqueezeCenter 7.3.x / Squeezebox Server 7.4.x
# Allows shutdown/restart/suspend/hibernation of your Squeezebox Server
# hardware via SBS's web interface, your Squeezebox's IR remote
# or via a SBC / Touch / SqueezePlay.
#
# Version 20160501.151506
#
# Copyright (C) 2008, 2009 Gordon Harris
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License,
# version 2, which should be included with this software.
#
# Based on Adrian C's (aka tenwiseman) Server Power Control plugin:
# http://adrianonline.wordpress.com/
# http://forums.slimdevices.com/showthread.php?t=32674
# Copyright AdrianOnline.Net Feb 2007. Initially modeled on Max Spicer's Max2.pm
#
# Also includes code from PeterW's AllQuiet plugin: http://www.tux.org/~peterw/slim/slim7/AllQuiet/
# AllQuiet copyright (c) 2007 by Peter Watkins ([email protected])
#
#
# See a duscussion of this plugin at http://forums.slimdevices.com/showthread.php?t=48521
#
# ===============================================================================================================
#
# Util.pm -- Misc routines..
#
package Plugins::SrvrPowerCtrl::Util;
use base qw(Slim::Plugin::Base);
use strict;
use Slim::Utils::OSDetect;
use Slim::Utils::Strings qw(string);
use Time::Zone;
use File::Spec::Functions qw(:ALL);
use Cwd 'abs_path';
#use Cwd qw(abs_path);
use Scalar::Util qw(blessed);
use Socket;
#use Archive::Zip qw( :ERROR_CODES :CONSTANTS );
#$x = "blip";
#Global Variables..
use vars qw(%g);
*g = \%Plugins::SrvrPowerCtrl::Settings::g;
#sub max ($$) { $_[$_[0] < $_[1]] }
#
#sub min ($$) { $_[$_[0] > $_[1]] }
# 7.0 == SqueezeCenter
# 7.4 == Squeezebox Server
# 7.7 == Logitech Media Server
sub SrvrPowerCtrlStats {
return sprintf(string('PLUGIN_SRVRPOWERCTRL_BASIC_SETTINGS_HEADER_STATS'),
$g{nAppVersion},
GetSCInitials(),
$::VERSION,
$g{szOS},
$g{szDistro},
$g{szSCUser},
($g{prefs}->{bNoShowMac} ? ' ' : $g{szServerMAC}));
}
#sub IsNull {
# if (!defined( @_) || ! @_ ) {
# return 1;
# }
# return 0;
#}
sub IsNumeric {
my ($num) = @_;
#$g{log}->is_debug && $g{log}->debug("Testing $num");
if (!defined($num)) {
return 0;
} elsif ($num =~ /^-?\d/) {
return 1;
}
return 0;
}
sub IsValidClient {
my $client = shift || return 0;
if (eval{$client->id()}) {
return 1;
}
return 0;
}
sub ClientAttribute {
my ($client, $attr) = @_;
if ( !defined($client) || !defined($attr) ) {
return "no $attr";
}
return ( eval {$client->$attr()} || "no $attr" );
}
sub ClientSpec {
my $client = shift;
return ( "Client is a: modelName: [" . ClientAttribute($client, 'modelName') . "] model: [" . ClientAttribute($client, 'model') . "] deviceid: [" . ClientAttribute($client, 'deviceid') . "] name: [" . ClientAttribute($client, 'name') . "] id: [" . ClientAttribute($client, 'id') . "]");
}
sub IsVFDClient {
my $client = shift || return 0;
if ( ClientAttribute($client, 'model') =~ m/^(slimp3|boom|squeezebox|squeezebox2|squeezebox3|transporter)$/ ) {
return 1;
}
return 0;
}
sub IsSPClient {
my $client = shift || return 0;
if ( ClientAttribute($client, 'model') =~ m/^(fab4|baby)$/ ) {
return 1;
}
return 0;
}
sub GetPluginPath {
my $fullname = File::Spec->rel2abs( __FILE__ );
my ($volume, $path, $file) = File::Spec->splitpath($fullname);
#Another aproach to resolve symlinks..
my $absolute_path = $volume ? $volume . $path : $path;
$path = abs_path($absolute_path);
return $path;
}
sub GetFileOwner {
my $szFilename = shift;
my $uid = (stat "$szFilename" )[4];
my $user = (getpwuid ($uid))[0];
return $user;
}
sub GetSCName {
if (Slim::Utils::Versions::compareVersions($::VERSION, '7.4') < 0) {
return string('SQUEEZECENTER');
}
return string('SQUEEZEBOX_SERVER');
}
sub GetSCInitials {
##returns: 1 if $left > $right, 0 if $left == $right, -1 if $left < $right
#if (Slim::Utils::Versions::compareVersions("$::VERSION", '10.0') >= 0) {
# return 'UEML';
#} elsif (Slim::Utils::Versions::compareVersions("$::VERSION", '7.7') >= 0) {
# return 'LMS';
#} elsif (Slim::Utils::Versions::compareVersions("$::VERSION", '7.4') >= 0) {
# return 'SBS';
#}
#return 'SC';
my $nVer = GetSCVersion();
if ( $nVer >= 10 ) {
return 'UEML';
} elsif ( $nVer >= 7.7 ) {
return 'LMS';
} elsif ( $nVer >= 7.4 ) {
return 'SBS';
} else {
return 'SC';
}
}
sub GetSCUser {
my $szSCUser = Slim::Utils::OSDetect::getOS()->{osDetails}->{uid};
return $szSCUser;
}
#Get the SqueezeCenter Version, change it from 7.3.4 form into 7.34 and make it numeric..
#LIMITATION: this would see 7.4.1 as equal to 7.4.10
sub GetSCVersion {
my $nSCVersion = $::VERSION;
my $nPos = index($nSCVersion, '.');
if ($nPos > 0) {
$nPos++;
my $szMinor = substr($nSCVersion, $nPos);
$szMinor =~ s/\.//g;
$nSCVersion = substr($nSCVersion, 0, $nPos) . $szMinor;
}
$nSCVersion = $nSCVersion * 1;
return $nSCVersion;
}
sub GetOSDistro {
my $szDistro = Slim::Utils::OSDetect::getOS()->{osDetails}->{osName};
#$g{log}->is_debug && $g{log}->debug ("Raw distro name == $szDistro");
# clean up the name, removing version info..
# e.g. on OS X, osName == MacOSX10.6.1(10B504)
# Remove digits..
$szDistro =~ s/\d//g;
# Remove periods..
$szDistro =~ s/\.//g;
# Remove anything within parenthises
$szDistro =~ s/\(.*\)//g;
# Remove trailing whitespace and anything after that..
#$szDistro =~ s/(^\S*)\s.*$/\1/g;
$szDistro =~ s/\s//g;
#$g{log}->is_debug && $g{log}->debug ("Clean distro name == $szDistro");
# from svn 28890 7.4 trunk, OSX.pm:
#$szDistro =~ s/ \(\w+?\)$//;
return $szDistro;
}
# Adapted from python code at from: http://code.activestate.com/recipes/439094/
sub IOCTLGetMacAddress {
my $interface = shift || "eth0";
socket(my $socket, AF_INET, SOCK_DGRAM, 0);
my $buf = pack("a256", $interface);
# SIOCGIFHWADDR == 0x8927
ioctl($socket, 0x8927, $buf);
close($socket);
my $macstr = sprintf("%s%s:%s%s:%s%s:%s%s:%s%s:%s%s",split('',uc unpack("H12",substr($buf, 18, 6))));
return $macstr;
}
my $max_addrs = 30;
# Adapted from http://www.perlmonks.org/?node_id=53660
sub IOCTLGetInterfaces {
my %interfaces;
socket(my $socket, AF_INET, SOCK_DGRAM, 0); # or die "socket: $!";
{
my $ifreqpack = 'a16a16';
my $buf = pack($ifreqpack, '', '') x $max_addrs;
my $ifconf = pack('iP', length($buf), $buf);
#SIOCGIFCONF == 0x8912
ioctl($socket, 0x8912, $ifconf);
my $len = unpack('iP', $ifconf);
substr($buf, $len) = '';
%interfaces = unpack("($ifreqpack)*", $buf);
unless (keys(%interfaces) < $max_addrs) {
# Buffer was too small
$max_addrs += 10;
redo;
}
}
close($socket);
for my $addr (values %interfaces) {
$addr = inet_ntoa((sockaddr_in($addr))[1]);
}
my @nics;
my $interfaceMAC;
while( my ($interfaceName, $interfaceIP) = each %interfaces ) {
#truncate the interface name..
substr($interfaceName, index($interfaceName, chr(0))) = '';
$interfaceMAC = IOCTLGetMacAddress ($interfaceName);
push ( @nics, {
interfaceName => $interfaceName,
interfaceMAC => $interfaceMAC,
interfaceIP => $interfaceIP,
});
}
return @nics;
}
sub GetServerMacAddress {
#If TinySC, don't make a system call..
if ( defined( &Slim::Utils::OSDetect::isSqueezeOS ) && Slim::Utils::OSDetect::isSqueezeOS() ) {
my $my_ip = Slim::Utils::Network::serverAddr();
my @interfaces = IOCTLGetInterfaces();
foreach my $interface (@interfaces) {
if ( $my_ip eq $interface->{interfaceIP} ) {
return $interface->{interfaceMAC};
}
}
return 'UNKNOWN';
}
my $serverMAC;
if ($^O =~ /^m?s?win/i) { ## Windows?
$serverMAC = `ipconfig /all`;
} else { ## Everything else..
$serverMAC = `ifconfig -a`;
#$serverMAC = IOCTLGetMacAddress();
}
if ( $serverMAC =~ /((?:[0-9a-f]{2}[:-]){5}[0-9a-f]{2})/i ) {
$serverMAC = $1;
$serverMAC =~ s/\-/\:/g ; ## Windows ipconfig formats MAC as aa-bb-cc-dd-ee-ff
return $serverMAC;
}
return 'UNKNOWN';
}
sub ListOurLogEntries {
my $bAddBR = shift || 0;
my $szServerLogFile = Slim::Utils::Log::serverLogFile();
#my $szLogEntry;
my $szLogEntries = '';
if (! -e $szServerLogFile || !open(SERVERLOG, "<$szServerLogFile")) {
return 0;
}
while (<SERVERLOG>) {
#$szLogEntry = $_;
#if ($szLogEntry =~ m/(^.*SrvrPowerCtrl.*$)/) {
if ($_ =~ m/(^.*SrvrPowerCtrl.*$)/) {
$szLogEntries .= $1 . ($bAddBR ? '<br>' : "\n");
}
}
close(SERVERLOG);
return $szLogEntries;
}
sub ArchivePrefsAndLog {
my $szArchiveFile = shift;
my $szPrefsFile;
my $szSrvrLogFile;
my $szLogFile;
my $szZipFile;
if ($g{szOS} eq 'win') {
$szPrefsFile = Slim::Utils::OSDetect::dirsFor('log') . "\\srvrpowerctrl_tmp.prefs";
$szSrvrLogFile = Slim::Utils::OSDetect::dirsFor('log') . "\\srvrpowerctrl_tmp.log";
$szLogFile = Slim::Utils::OSDetect::dirsFor('log') . "\\srvrpowerctrl.log";
$szZipFile = Slim::Utils::OSDetect::dirsFor('log') . "\\srvrpowerctrl_tmp.zip";
} else {
$szPrefsFile = Slim::Utils::OSDetect::dirsFor('log') . "srvrpowerctrl_tmp.prefs";
$szSrvrLogFile = Slim::Utils::OSDetect::dirsFor('log') . "srvrpowerctrl_tmp.log";
$szLogFile = Slim::Utils::OSDetect::dirsFor('log') . "srvrpowerctrl.log";
$szZipFile = Slim::Utils::OSDetect::dirsFor('log') . "srvrpowerctrl_tmp.zip";
}
#$szPrefsFile = '/tmp/srvrpowerctrl_tmp.prefs';
#$szLogFile = '/tmp/srvrpowerctrl_tmp.log';
#$szZipFile = '/tmp/srvrpowerctrl_tmp.zip';
if (defined($szArchiveFile)) {
$szZipFile = $szArchiveFile;
}
if (open(PREFSDUMP, ">$szPrefsFile")) {
print PREFSDUMP Plugins::SrvrPowerCtrl::Settings::ListPrefs();
close(PREFSDUMP);
} else {
$g{log}->error("Could not create prefsdump $szPrefsFile");
}
if (open(LOGDUMP, ">$szSrvrLogFile")) {
print LOGDUMP ListOurLogEntries();
close(LOGDUMP);
} else {
$g{log}->error("Could not create logdump $szLogFile");
}
my $zip;
my $file_member;
eval {
require Archive::Zip;
import Archive::Zip qw( :ERROR_CODES :CONSTANTS );
#use Archive::Zip qw( :ERROR_CODES :CONSTANTS );
$zip = Archive::Zip->new();
};
$zip = Archive::Zip->new();
#if (!defined $zip) {
# $g{log}->error("error loading Archive::Zip $@");
# return 0;
#}
if ( -e $szPrefsFile ) {
$file_member = $zip->addFile( $szPrefsFile, 'srvrpowerctrl.prefs' );
}
if ( -e $szSrvrLogFile ) {
$file_member = $zip->addFile( $szSrvrLogFile, 'server.log' );
}
if ( -e $szLogFile ) {
$file_member = $zip->addFile( $szLogFile, 'srvrpowerctrl.log' );
}
unless ( $zip->writeToFileNamed($szZipFile) == 0 ) {
$g{log}->error("Could not create archive $szZipFile");
$szZipFile = undef;
}
unlink($szPrefsFile);
unlink($szSrvrLogFile);
if ( defined($szZipFile) && -e $szZipFile ) {
$g{log}->info("Created prefs and log archive $szZipFile");
}
return $szZipFile;
}
sub AnyPlayersBusy {
for my $client (Slim::Player::Client::clients()) {
# Add lastActivityTime check from Michael Herger's tweaks to PreventStandby
# Note that non-playing "activity" flags the player as busy only for the watchdog timer interval..i.e. 60 seconds...NOT for the full grace interval.
if ( $client->isUpgrading() || $client->isPlaying() || (Time::HiRes::time() - $client->lastActivityTime <= $g{nWatchdogTimerInterval}) ) {
#if ( $client->isUpgrading() || $client->isPlaying() ) {
$g{log}->is_debug && $g{log}->debug("Player " . $client->name() . " is busy..");
return 1;
}
}
return 0;
}
sub AnyPlayersPlaying {
my @clients;
my $curclient;
@clients = Slim::Player::Client::clients();
foreach $curclient (@clients) {
#$g{log}->is_debug && $g{log}->debug ($curclient->modelName() . ": " . $curclient->name() . " playmode is \[" . ClientAttribute($curclient, 'playmode') . "\]");
if (Slim::Player::Source::playmode($curclient) eq 'play') {
return 1;
}
}
return 0;
}
sub AnyPlayersUpdating {
my @clients;
my $curclient;
@clients = Slim::Player::Client::clients();
foreach $curclient (@clients) {
#Just block on isUpgrading, not on needsUpgrade..
if ( $curclient->isUpgrading() ) {
$g{log}->info ($curclient->modelName() . ": " . $curclient->name() . " needsUpgrade() is \[" . $curclient->needsUpgrade() . "\]");
return 1;
}
}
return 0;
}
sub DisplayPlayerMessage {
my ($client, $message, $duration, $skipclient, $jivemessage, $bShouldBlock) = @_;
my @clients;
my $curclient;
my $numclients;
my $jive_duration;
if (!defined($duration)) {
$duration = $g{prefs}->nRegretDelay;
} elsif (!$duration || !$message || !length($message)) {
return;
}
#jive duration is in milliseconds, not seconds..
$jive_duration = $duration * 1000;
if (IsValidClient($client)) {
push(@clients, $client);
} else {
@clients = Slim::Player::Client::clients();
}
$numclients = @clients;
#fixup the message..change underscores to spaces..
$message =~ s/_/ /sig;
#$g{log}->is_debug && $g{log}->debug( "Displaying message \[" . (defined($jivemessage) ? $jivemessage : $message) . "\] on " . $numclients . " clients for " . $duration . " seconds.");
foreach $curclient (@clients) {
#Don't display a message here..
if ( IsValidClient($skipclient) && ( ClientAttribute($skipclient, 'id') eq $curclient->id() ) ) {
#$g{log}->is_debug && $g{log}->debug( "Not displaying message on " . $curclient->modelName() . ": " . $curclient->name() );
next;
}
#Don't bother trying to disply the message on a SBR..
if ($curclient->deviceid eq 7) {
#$g{log}->is_debug && $g{log}->debug("Skipping display on " . $curclient->modelName() . ": " . $curclient->name() );
next;
}
#$g{log}->is_debug && $g{log}->debug("Displaying message: [" . (defined($jivemessage) ? $jivemessage : $message) . "] on " . $curclient->modelName() . ":" . $curclient->model() . ": " . $curclient->name() );
my $hDisp;
##Change the font on the BOOM:
if ($curclient->deviceid == 10) {
$hDisp = {
'line' => [ string('PLUGIN_SRVRPOWERCTRL_MODULE_NAME'), $message ],
'fonts' => { 'graphic-160x32' => { 'line' => [ 'standard_n.1', 'standard_n.2' ] }, },
};
} else {
$hDisp = {
'line1' => string('PLUGIN_SRVRPOWERCTRL_MODULE_NAME'),
'line2' => $message,
};
}
#Display for any controlling SBC, touch, etc..
$hDisp->{jive} = {
'type' => 'popupInfo',
'text' => [ (defined($jivemessage) ? $jivemessage : $message) ],
'duration' => $jive_duration,
};
$curclient->showBriefly(
$hDisp,
$duration,
0, # line2 is single line
#(!$bShouldBlock ? 0 : 1), # block updates
!!$bShouldBlock+0, # block updates
1, # scroll to end
(!IsValidClient($client) && Plugins::SrvrPowerCtrl::Watchdog::IsInEOD() ? 'powerOff' : 'idle')); # Don't make this bright at night!
}
}
sub UnBlockPlayerMessage {
my ($client, $message, $duration) = @_;
my @clients;
my $curclient;
#$g{log}->is_debug && $g{log}->debug( (IsValidClient($client) ? $client->name() : "All Clients") . ": " . ($message ? $message : "no message.") );
#if (!IsNull($client)) {
if (IsValidClient($client)) {
push(@clients, $client);
} else {
@clients = Slim::Player::Client::clients();
}
foreach $curclient (@clients) {
$curclient->unblock();
$curclient->showBriefly( { 'jive' => { 'text' => [ " " ], 'duration' => 100} },{'duration' => 10, 'block' => 0, } );
}
if (defined($message)) {
$g{log}->is_debug && $g{log}->debug($message);
DisplayPlayerMessage($client, $message, $duration);
}
}
sub PowerOffPlayer {
my ($client) = @_;
my @clients;
my $curclient;
if (IsValidClient($client)) {
push(@clients, $client);
} else {
@clients = Slim::Player::Client::clients();
}
foreach $curclient (@clients) {
if ( $curclient->canPowerOff() && $curclient->power() ) {
$g{log}->is_debug && $g{log}->debug( "Powering off " . $curclient->modelName() . ": " . $curclient->name());
$curclient->execute(['power', '0']);
}
}
}
sub RestartSC {
$g{log}->is_debug && $g{log}->debug("Attempting SC7.4 style service restart..");
Slim::Control::Request::executeRequest(undef, ['restartserver']);
}
sub GetWhenShouldRun {
my @aTime;
my $szTime;
@aTime = localtime(time());
#forward 2 minutes..at on linux seems to need this..
if ($aTime[0] >= 30) {
$aTime[1] += 2;
} else {
#forward 1 minute..
$aTime[1] += 1;
}
#we don't need no stinking seconds..
$aTime[0] = 0;
#fixup minutes..
if ($aTime[1] >= 60) {
if ($aTime[2] >= 23) {
$aTime[2] = 0;
}
$aTime[1] -= 60;
}
$szTime = sprintf("%02d:%02d", $aTime[2], $aTime[1]);
return $szTime;
}
# Quasi-printf processing of format placeholders in a command string..
# Substitution works as follows:
#
# %% becomes %
# %d beccomes unix epoch time (UTC)
# %l becomes unix epoch time + localtime offset
# %s becomes localtime 'YY-MM-DD HH:MM:SS'
# %f becomes localtime 'short-date', usu 'MM-DD-YY'
# %t becomes localtime 'HH:MM:SS'
# {+/-nnnn} is used as a offset correction to the supplied time..
sub FormatCommand {
my ($szCommand, $nTime, $nCorrection) = @_;
if ( ! defined($szCommand) || ! length($szCommand) ) {
return "";
}
if (!defined($nTime)) {
$nTime = time();
}
if (!defined($nCorrection)) {
$nCorrection = 0;
#Anything within curly braces is interpreted as a request to correct the time, e.g. '{-120}' == subtract two minutes..
if ( $szCommand =~ /\{(.+)\}/ ) {
$nCorrection = $1;
$szCommand =~ s/\{(.+)\}//g; #remove the correction string..
$g{log}->is_debug && $g{log}->debug("Command $szCommand contained a correction value of $nCorrection..");
}
}
$nTime += $nCorrection;
my $nTimeLocal = $nTime + tz_local_offset($nTime);
my $szDate = Slim::Utils::DateTime::shortDateF($nTime);
my $szTime = Slim::Utils::DateTime::timeF($nTime, "%H:%M:%S");
my $szDateTime = Slim::Utils::DateTime::timeF($nTime, "%Y-%m-%d %H:%M:%S");
#make % replacements
#$g{log}->is_debug && $g{log}->debug("Before command: $szCommand");
$szCommand =~ s/%%/¶/g;
$szCommand =~ s/%d/$nTime/g; # time as unix epoch
$szCommand =~ s/%l/$nTimeLocal/g; # local unix epoch
$szCommand =~ s/%s/$szDateTime/g; # YY-MM-DD HH:MM:SS
$szCommand =~ s/%f/$szDate/g; # Localtime short-date format, usu MM-DD-YY
$szCommand =~ s/%t/$szTime/g; # Localtime HH:MM:SS
$szCommand =~ s/¶/%/g;
#$g{log}->is_debug && $g{log}->debug("After command: $szCommand");
return $szCommand;
}
# From Peter Watkin's KidsPlay plugin: parseFields()
# sub to handle quoted fields, e.g. 'playlist play "/path/with some spaces/playlist.m3u"'
# sub to handle quoted fields, e.g. 'playlist play "/path/with some spaces/playlist.m3u"'
sub parseFields($) {
my $line = shift;
# certain characters should be escaped with a \ :
# \ ; " [ ] { }
# if the \ char is followed by any other char,
# \ and the char following are interpreted as 2 chars
my $specialC = "\\;\"\[\]\{\}";
$line =~ s/^\s*//;
$line =~ s/\s*$//;
my @cooked = ();
my $in = 0;
my $quoted = 0;
my $escaped = 0;
my $i = 0;
my $word = '';
#my $iswindows = $^O =~ /^m?s?win/i;
while ($i < length($line) ) {
my $c = substr($line,$i++,1);
$escaped = 0;
#if ( $c eq "\\" && !$iswindows ) {
if ( $c eq "\\" ) {
$escaped = 1;
if ($i < (length($line) -1)) {
my $c2 = substr($line,$i++,1);
if (index($specialC,$c2) > -1) {
$c = $c2;
} else {
--$i;
$escaped = 0;
}
} else {
# just a \
}
}
if ( $in ) {
if ( $escaped ) {
$word .= $c;
} else {
# end of this word?
if ( ($quoted && ($c eq '"')) || ((!$quoted) && ($c =~ /\s/)) ) {
push @cooked, $word;
$word = '';
$in = 0;
$quoted = 0;
} else {
# build & keep moving
$word .= $c;
}
}
} else {
# look for delim
if ( $c eq '"' ) {
$quoted = 1;
$in = 1;
} elsif ( $c !~ /\s/ ) {
$quoted = 0;
$in = 1;
$word .= $c;
}
}
}
if ( $in ) { push @cooked, $word; }
return @cooked;
}
#also Peter Watkin's code..
sub splitLines($$) {
my $macro = shift;
my $delim = shift;
my @ms;
my $line = '';
my $i = 0;
while ($i < length($macro) ) {
my $c = substr($macro,$i,1);
if ( $c eq "\\" ) {
if ($i < (length($macro) -1)) {
$c .= substr($macro,++$i,1);
} else {
# invalid escape!
$c = '';
}
} else {
if ($c eq $delim) {
push @ms, $line;
$line = '';
$c = '';
}
}
$line .= $c;
++$i;
}
if ($line ne '') {
push @ms, $line;
}
return @ms;
}
#Function "Slim::Control::Request::executeRequest" accepts the usual parameters
#of client, command array and callback params, and returns the request object.
#my $request = Slim::Control::Request::executeRequest($client, ['stop']);
sub CLIExecCmd {
my ($callingclient, $command, $time) = @_;
my @commands;
my $cmd;
my $res;
my @results;
if (! $command =~ m/^cli\:\/\//i ) {
return -1;
}
#strip off the 'cli://'
$command = substr($command,6);
#allow multi-command cli requests using && as a separator..
@commands = split('&&', $command );
foreach $cmd (@commands) {
#strip leading whitespace..
$cmd =~ s/^\s// ;
# parse the command
my ($client, $arrayRef) = Slim::Control::Stdio::string_to_array($cmd);
if (!defined $arrayRef) {
next;
}
if (IsValidClient($client)) {
$g{log}->info( ClientAttribute($client, 'name') . ' requesting command: ' . ClientAttribute($client, 'id') . " @{$arrayRef}" );
$res = Slim::Control::Request::executeRequest($client, $arrayRef);
} else {
$g{log}->info( ClientAttribute($callingclient, 'name') . ' requesting command: ' . ClientAttribute($callingclient, 'id') . " @{$arrayRef}" );
$res = Slim::Control::Request::executeRequest($callingclient, $arrayRef);
}
#don't dump huge results!
$g{log}->is_debug && $g{log}->debug('results == ' . ($res->{_results}->{count} < 100 ? Data::Dump::dump($res->{_results}) : $res->{_results}));
push(@results, $res);
}
return @results;
}
sub SystemExecCmd {
my ($client, $command, $time) = @_;
my @commands;
my $cmd;
my @cmd_args;
my $res;
my @results = ();
if (!$command) {
return -1;
}
@commands = splitLines($command,";");
$g{log}->is_debug && $g{log}->debug( scalar(@commands) . " commands: $command");
foreach $cmd (@commands) {
$cmd =~ s/^\s*//;
$cmd =~ s/\s*$//;
$cmd = FormatCommand( $cmd, $time );
if ( $cmd =~ m/^\s*cli\:\/\//i ) {
$res = CLIExecCmd($client, $cmd, $time);
} else {
@cmd_args = parseFields($cmd);
#make this log entry look less ominous..
$g{log}->info( (IsValidClient($client) ? ClientAttribute($client, 'modelName') . ': ' . ClientAttribute($client, 'name') . ' via ' : '') . 'SrvrPowerCtrl executing command: ' . "@cmd_args" );
$res = system @cmd_args[0..$#cmd_args];
if ( $res == -1 ) {
$g{log}->error("Command: \"@cmd_args\" failed to execute: $!");
}
$res = $res >> 8;
#$res = "We are not doing this!";
#sudo return values:
#
#Upon successful execution of a program, the exit status from sudo will simply be
#the exit status of the program that was executed.
#
#Otherwise, sudo quits with an exit value of 1 if there is a configuration/permission
#problem or if sudo cannot execute the given command. In the latter case the error string is printed to stderr.
#$res == 1 may indicate a sudo permissions problem...not sure about return values from cmd.exe..
$g{log}->is_debug && $g{log}->debug("Command: \"@cmd_args\" returned $res");
push(@results, $res);
}
}
return @results;
}
sub ScheduleCommand {
my ($client, $item, $nAdditionalDelay) = @_;
if (!defined($nAdditionalDelay)) {
$nAdditionalDelay = 0;
}
#Find the next alarm and program the RTC to wake up the server at the appropriate time.
if ($item->{'setrtcwakeup'}) {
Plugins::SrvrPowerCtrl::Alarms::SetRTCWakeup();
}
#Do we want to call Slim::Utils::Timers::pendingTimers() here to see if there is anything to wait for?
#cue up our action command to execute in the future..
return Slim::Utils::Timers::setTimer(undef, time() + $item->{'cmdwait'} + $nAdditionalDelay,
sub {
my $res;
my $command;
my $cmdargs;
my @cmd;
#We're the timer action...clear the timer ID since it's fired..and the saved pending action..
$g{tPendingActionTimer} = 0;
$g{hPreviousAction} = $g{hPendingAction};
$g{hPendingAction}->{isSleepDefered} = 0;
$g{hPendingAction} = { };
$command = $item->{command};
# execute the coderef (if any) to get args for the cmd..
if ( defined($item->{getcommandargcoderef}) ) {
#execute the coderef..
$cmdargs = &{$item->{getcommandargcoderef}}($client, $item);
if ( defined($cmdargs) ) {
if ( (IsNumeric($cmdargs)) && ($cmdargs == -1) ) {
#fail mode..
my $failmsg = sprintf( string('PLUGIN_SRVRPOWERCTRL_FAILURE_MSG'), ucfirst( lc($item->{action}) ) );
$g{log}->error("$item->{action} $item->{getcommandargcoderef} failed!");
UnBlockPlayerMessage(undef, $failmsg);
return;
} else {
#anything else returned is a cmdline arg for our script..
$command = $item->{command} . ' ' . $cmdargs;
}
} else {
#the coderef returned undef..
$command = $item->{command};
}
}
#if the command is a coderef rather than a script or system command name, execute it..
if (ref($item->{command}) eq 'CODE') {
$g{log}->is_debug && $g{log}->debug("Command is a coderef!");
#execute the coderef..
$cmdargs = &{$item->{command}}($client, $item);
#else the command is a system command or script..
} else {
SystemExecCmd($client, $command);
}
if ($item->{'stopsc'}) {
if (IsValidClient($client)) {
#from SqueezeTray.pl
$client->execute(['stopserver']);
} else {
main::stopServer();
}
}
if (!$item->{dispblock}) {
UnBlockPlayerMessage();
}
}, );
}
sub TestCoderefFail {
my ($client, $item) = @_;