| Current File : //scripts/upcp |
#!/usr/local/cpanel/3rdparty/bin/perl
# cpanel - scripts/upcp Copyright 2022 cPanel, L.L.C.
# All rights reserved.
# copyright@cpanel.net http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited
package scripts::upcp;
BEGIN {
unshift @INC, q{/usr/local/cpanel};
# if we are being called with a compile check flag ( perl -c ), skip the begin block
# so we don't actually call upcp.static when just checking syntax and such is OK
return if $^C;
# static never gets --use-checked and should pass all the begin block checks
return if $0 =~ /\.static$/;
# let the '--use-check' instance compiled
if ( grep { $_ eq '--use-check' } @ARGV ) {
no warnings;
# dynamic definition of the INIT block
eval "INIT { exit(0); }";
return;
}
system("$0 --use-check >/dev/null 2>&1");
# compilation is ok with '--use-check', we will continue the non static version
return if $? == 0;
my $static = $0 . ".static";
if ( -f $static ) {
print STDERR "We determined that $0 had compilation issues..\n";
print STDERR "Trying to exec $static " . join( ' ', @ARGV ) . "\n";
exec( $^X, $static, @ARGV );
}
}
use cPstrict;
no warnings; ## no critic qw(ProhibitNoWarnings)
use Try::Tiny;
use Cpanel::OS::All (); # PPI USE OK -- make sure Cpanel::OS is embedded
use Cpanel::HiRes ( preload => 'perl' );
use Cpanel::Env ();
use Cpanel::Update::IsCron ();
use Cpanel::Update::Logger ();
use Cpanel::FileUtils::TouchFile ();
use Cpanel::LoadFile ();
use Cpanel::LoadModule ();
use Cpanel::Usage ();
use Cpanel::UPID ();
use IO::Handle ();
use POSIX ();
use Cpanel::Unix::PID::Tiny ();
my $pidfile = '/var/run/upcp.pid';
my $lastlog = '/var/cpanel/updatelogs/last';
my $upcp_disallowed_path = '/root/.upcp_controlc_disallowed';
my $version_upgrade_file = '/usr/local/cpanel/upgrade_in_progress.txt';
our $logger; # Global for logger object.
our $logfile_path;
my $now;
my $forced = 0;
my $fromself = 0;
my $sync_requested = 0;
my $bg = 0;
my $rlimit_max = 1024;
my $from_version;
my $pbar_starting_point;
exit( upcp() || 0 ) unless caller();
sub usage {
print <<EOS;
Usage: scripts/upcp [--bg] [--cron] [--force] [--help] [--log=[path]] [--sync]
Updates cPanel & WHM.
Options:
--bg Runs upcp in the background. Output is only visible in the log.
--cron Follow WHM's Update Preferences (/etc/cpupdate.conf).
--force Force a reinstall even if the system is up to date.
--help Display this documentation.
--log=[path] Overrides the default log file.
--sync Updates the server to the currently-installed version instead of downloading a newer version.
This will also run other maintenance items, such as package updates and repairs.
You cannot use the --sync argument with the --force argument.
EOS
exit 1; ## no critic(Cpanel::NoExitsFromSubroutines) -- /scripts/upcp needs refactor to use Getopt
}
sub upcp { ## no critic(Subroutines::ProhibitExcessComplexity) - preserve original code
Cpanel::Usage::wrap_options( \@ARGV, \&usage, {} ); #display usage information on --help
open( STDERR, ">&STDOUT" ) or die $!;
local $| = 1;
umask(0022);
$now = time();
setupenv();
unset_rlimits();
#############################################################################
# Record the arguments used when started, check for certain flags
my $update_is_available_exit_code = 42;
my @retain_argv = @ARGV;
foreach my $arg (@ARGV) {
if ( $arg =~ m/^--log=(.*)/ ) {
$logfile_path = $1;
}
elsif ( $arg eq '--fromself' ) {
$fromself = 1;
}
elsif ( $arg eq '--force' ) {
$forced = 1;
$ENV{'FORCEDCPUPDATE'} = 1;
}
elsif ( $arg eq '--sync' ) {
$sync_requested = 1;
}
elsif ( $arg eq '--bg' ) {
$bg = 1;
}
}
if ( $sync_requested && $forced ) {
print "FATAL: --force and --sync are mutually exclusive commands.\n";
print " Force is designed to update your installed version, regardless of whether it's already up to date.\n";
print " Sync is designed to update the version already installed, regardless of what is available.\n";
return 1;
}
if ( $> != 0 ) {
die "upcp must be run as root";
}
#############################################################################
# Make sure easyapache isn't already running
my $upid = Cpanel::Unix::PID::Tiny->new();
if ( $upid->is_pidfile_running('/var/run/easyapache.pid') ) {
print "EasyApache is currently running. Please wait for EasyApache to complete before running cPanel Update (upcp).\n";
return 1;
}
#############################################################################
# Make sure we aren't already running && make sure everyone knows we are running
my $curpid = $upid->get_pid_from_pidfile($pidfile) || 0;
if ( $curpid && $curpid != $$ && !$fromself && -e '/var/cpanel/upcpcheck' ) {
my $pidfile_mtime = ( stat($pidfile) )[9];
my $pidfile_age = ( time - $pidfile_mtime );
if ( $pidfile_age > 21600 ) { # Running for > 6 hours
_logger()->warning("previous PID ($curpid) has been running more than 6 hours. Killing processes.");
kill_upcp($curpid); # the pid_file_no_cleanup() will exit if it is still stuck after this
sleep 1; # Give the process group time to die.
}
elsif ( my $logpath = _determine_logfile_path_if_running($curpid) ) {
print _message_about_already_running( $curpid, $logpath ) . "\n";
return 1;
}
}
if ( $curpid && $curpid != $$ && !$upid->is_pidfile_running($pidfile) ) {
print "Stale PID file '$pidfile' (pid=$curpid)\n";
}
if ( !$fromself && !$upid->pid_file_no_cleanup($pidfile) ) {
print "process is already running\n";
return 1;
}
# to indicate re-entry into upcp
$pbar_starting_point = $fromself ? 17 : 0;
# record current version
$from_version = fetch_cpanel_version();
#############################################################################
# Set up the upcp log directory and files
setup_updatelogs();
#############################################################################
# Fork a child to the background. The child does all the heavy lifting and
# logs to a file; the parent just watches, reads, and parses the log file,
# displaying what it gets.
#
# Note that the parent reads the log in proper line-oriented -- and buffered!
# -- fashion. An earlier version of this script did raw sysread() calls here,
# and had to deal with all the mess that that entailed. The current approach
# reaps all the benefits of Perl's and Linux's significant file read
# optimizations without needing to re-invent any of them. The parent loop
# below becomes lean, mean, and even elegant.
#
# Note in particular that we do not need to explicitly deal with an
# end-of-file condition (other than avoiding using undefined data). For
# exiting the read loop we merely need to test that the child has expired,
# which in any case is the only situation that can cause an eof condition for
# us on the file the child is writing.
#
# Note, too, that the open() needs to be inside this loop, in case the child
# has not yet created the file.
if ( !$fromself ) {
# we need to be sure that log an pid are the current one when giving back the end
unlink $lastlog if $bg;
if ( my $updatepid = fork() ) {
$logfile_path ||= _determine_logfile_path_if_running($updatepid);
if ($logger) { # Close if logged about killing stale process.
$logger->{'brief'} = 1; # Don't be chatty about closing
$logger->close_log;
}
if ($bg) {
print _message_about_newly_started( $updatepid, $logfile_path ) . "\n";
my $progress;
select undef, undef, undef, .10;
while ( !-e $lastlog ) {
print '.';
select undef, undef, undef, .25;
$progress = 1;
}
print "\n" if $progress;
}
else {
monitor_upcp($updatepid);
}
return;
}
else {
$logfile_path ||= _determine_logfile_path_if_running($$);
}
}
local $0 = 'cPanel Update (upcp) - Slave';
open( my $RNULL, '<', '/dev/null' ) or die "Cannot open /dev/null: $!";
chdir '/';
_logger(); # Open the log file.
#############################################################################
# Set CPANEL_IS_CRON env var based on detection algorithm
my $cron_reason = set_cron_env();
$logger->info("Detected cron=$ENV{'CPANEL_IS_CRON'} ($cron_reason)");
my $set_cron_method = $ENV{'CPANEL_IS_CRON'} ? 'set_on' : 'set_off';
Cpanel::Update::IsCron->$set_cron_method();
my $openmax = POSIX::sysconf( POSIX::_SC_OPEN_MAX() );
if ( !$openmax ) { $openmax = 64; }
foreach my $i ( 0 .. $openmax ) { POSIX::close($i) unless $i == fileno( $logger->{'fh'} ); }
POSIX::setsid();
open( STDOUT, '>', '/dev/null' ) or warn $!;
open( STDERR, '>', '/dev/null' ) or warn $!;
$logger->update_pbar($pbar_starting_point);
##############################################################################
# Symlink /var/cpanel/updatelogs/last to the current log file
unlink $lastlog;
symlink( $logfile_path, $lastlog ) or $logger->error("Could not symlink $lastlog: $!");
#############################################################################
# now that we have sporked: update our pidfile and ensure it is removed
unlink $pidfile; # so that pid_file() won't see it as running.
if ( !$upid->pid_file($pidfile) ) { # re-verifies (i.e. upcp was not also started after the unlink() and here) and sets up cleanup of $pidfile for sporked proc
$logger->error("Could not update pidfile “$pidfile” with BG process: $!\n");
return 1;
}
# Assuming we didn't get re-executed from a upcp change after updatenow (!$fromself).
# If the file is still there from a failed run, remove it.
unlink($upcp_disallowed_path) if !$fromself && -f $upcp_disallowed_path;
# make sure that the pid file is going to be removed when killed by a signal
$SIG{INT} = $SIG{HUP} = $SIG{TERM} = sub { ## no critic qw(Variables::RequireLocalizedPunctuationVars)
unlink $pidfile;
if ($logger) {
$logger->close_log;
$logger->open_log;
$logger->error("User hit ^C or killed the process ( pid file '$pidfile' removed ).");
$logger->close_log;
}
return;
};
#############################################################################
# Get variables needed for update
my $gotSigALRM = 0;
my $connecttimeout = 30;
my $liveconnect = 0;
my $connectedhost = q{};
my @HOST_IPs = ();
## Case 46528: license checks moved to updatenow and Cpanel::Update::Blocker
$logger->debug("Done getting update config variables..");
$logger->increment_pbar;
#############################################################################
# Run the preupcp hook
if ( -x '/usr/local/cpanel/scripts/preupcp' ) {
$logger->info("Running /usr/local/cpanel/scripts/preupcp");
system '/usr/local/cpanel/scripts/preupcp';
}
if ( -x '/usr/local/cpanel/scripts/hook' ) {
$logger->info("Running Standardized hooks");
system '/usr/local/cpanel/scripts/hook', '--category=System', '--event=upcp', '--stage=pre';
}
$logger->increment_pbar();
#############################################################################
# Check mtime on ourselves before sync
# This is the target for a goto in the case that the remote TIERS file is
# changed sometime during the execution of this upcp run. It prevents the
# need for a new script argument and re-exec.
STARTOVER:
my $updatenow_exit_code;
my $mtime = ( stat('/usr/local/cpanel/scripts/upcp') )[9];
$logger->info( "mtime on upcp is $mtime (" . scalar( localtime($mtime) ) . ")" );
# * If no fromself arg is passed, it's either the first run from crontab or called manually.
# * --force is passed to updatenow, has no bearing on upcp itself.
# * Even if upcp is changed 3 times in a row during an update (fastest builds ever?), we
# would never actually update more than once unless the new upcp script changed the logic below
if ( !$fromself ) {
# run updatenow to sync everything
# updatenow expects --upcp to be passed or will error out
my @updatenow_args = ( '/usr/local/cpanel/scripts/updatenow', '--upcp', "--log=$logfile_path" );
# if --forced was received, pass it on to updatenow
if ($forced) { push( @updatenow_args, '--force' ); }
# if --sync was received, pass it on to updatenow. --force makes --sync meaningless.
if ( !$forced && $sync_requested ) { push( @updatenow_args, '--sync' ); }
# This is the point of no return, we are upgrading
# and its no longer abortable.
# set flag to disallow ^C during updatenow
Cpanel::FileUtils::TouchFile::touchfile($upcp_disallowed_path) or $logger->warn("Failed to create: $upcp_disallowed_path: $!");
# call updatenow, if we get a non-zero status, die.
my $exit_code = system(@updatenow_args);
$logger->increment_pbar(15);
if ( $exit_code != 0 ) {
$updatenow_exit_code = $exit_code;
my $signal = $exit_code % 256;
$exit_code = $exit_code >> 8;
analyze_and_report_error(
#success_msg => undef,
error_msg => "Running `@updatenow_args` failed, exited with code $exit_code (signal = $signal)",
type => 'upcp::UpdateNowFailed',
exit_status => $exit_code,
extra => [
'signal' => $signal,
'updatenow_args' => \@updatenow_args,
],
);
}
# get the new mtime and compare it, if upcp changed, let's run ourselves again.
# this should be a fairly rare occasion.
my $newmtime = ( stat('/usr/local/cpanel/scripts/upcp') )[9];
if ( $newmtime ne $mtime ) {
#----> Run our new self (and never come back).
$logger->info("New upcp detected, restarting ourself");
$logger->close_log();
exec '/usr/local/cpanel/scripts/upcp', @retain_argv, '--fromself', "--log=$logfile_path";
}
}
#############################################################################
# Run the maintenance script
my $last_logfile_position;
my $save_last_logfile_position = sub {
$last_logfile_position = int( qx{wc -l $logfile_path 2>/dev/null} || 0 );
};
$logger->close_log(); # Allow maintenance to write to the log
$save_last_logfile_position->(); # remember how many lines has the logfile before starting the maintenance script
my $exit_status;
my $version_change_happened = -e $version_upgrade_file;
if ($version_change_happened) {
$exit_status = system( '/usr/local/cpanel/scripts/maintenance', '--pre', '--log=' . $logfile_path, '--pbar-start=20', '--pbar-stop=30' );
}
else {
$exit_status = system( '/usr/local/cpanel/scripts/maintenance', '--log=' . $logfile_path, '--pbar-start=20', '--pbar-stop=95' );
}
$logger->open_log(); # Re-open the log now maintenance is done.
analyze_and_report_error(
success_msg => "Pre Maintenance completed successfully",
error_msg => "Pre Maintenance ended, however it did not exit cleanly ($exit_status). Please check the logs for an indication of what happened",
type => 'upcp::MaintenanceFailed',
exit_status => $exit_status,
logfile => $logfile_path,
last_logfile_position => $last_logfile_position,
);
# Run post-sync cleanup only if updatenow did a sync
# Formerly run after layer2 did a sync.
if ($version_change_happened) {
# post_sync pbar range: 30%-55%
$logger->close_log(); # Yield the log to post_sync_cleanup
$save_last_logfile_position->(); # remember how many lines has the logfile before starting the post_sync_cleanup script
my $post_exit_status = system( '/usr/local/cpanel/scripts/post_sync_cleanup', '--log=' . $logfile_path, '--pbar-start=30', '--pbar-stop=55' );
$logger->open_log; # reopen the log to continue writing messages
analyze_and_report_error(
success_msg => "Post-sync cleanup completed successfully",
error_msg => "Post-sync cleanup has ended, however it did not exit cleanly. Please check the logs for an indication of what happened",
type => 'upcp::PostSyncCleanupFailed',
exit_status => $post_exit_status,
logfile => $logfile_path,
last_logfile_position => $last_logfile_position,
);
unlink $version_upgrade_file;
unlink($upcp_disallowed_path) if -f ($upcp_disallowed_path);
# Maintenance pbar range: 55-95%
$logger->close_log(); # Allow maintenance to write to the log
$save_last_logfile_position->(); # remember how many lines has the logfile before starting the maintenance --post
$exit_status = system( '/usr/local/cpanel/scripts/maintenance', '--post', '--log=' . $logfile_path, '--pbar-start=55', '--pbar-stop=95' );
$logger->open_log(); # Re-open the log now maintenance is done.
analyze_and_report_error(
success_msg => "Post Maintenance completed successfully",
error_msg => "Post Maintenance ended, however it did not exit cleanly ($exit_status). Please check the logs for an indication of what happened",
type => 'upcp::MaintenanceFailed',
exit_status => $exit_status,
logfile => $logfile_path,
last_logfile_position => $last_logfile_position,
);
# Check for new version... used when updating to next LTS version
$logger->info("Polling updatenow to see if a newer version is available for upgrade");
$logger->close_log(); # Yield the log to updatenow
my $update_available = system( '/usr/local/cpanel/scripts/updatenow', "--log=$logfile_path", '--checkremoteversion' );
$logger->open_log; # reopen the log to continue writing messages
if ( !$sync_requested && $update_available && ( $update_available >> 8 ) == $update_is_available_exit_code ) {
$logger->info("\n\n/!\\ - Next LTS version available, restarting upcp and updating system. /!\\\n\n");
$fromself = 0;
goto STARTOVER;
}
}
else {
# Perform the return we used to do if updatenow failed:
return ( $updatenow_exit_code >> 8 ) if defined $updatenow_exit_code && $updatenow_exit_code;
unlink($upcp_disallowed_path) if -f ($upcp_disallowed_path);
}
#############################################################################
# Run the post upcp hook
$logger->update_pbar(95);
if ( -x '/usr/local/cpanel/scripts/postupcp' ) {
$logger->info("Running /usr/local/cpanel/scripts/postupcp");
system '/usr/local/cpanel/scripts/postupcp';
}
if ( -x '/usr/local/cpanel/scripts/hook' ) {
$logger->info("Running Standardized hooks");
system '/usr/local/cpanel/scripts/hook', '--category=System', '--event=upcp', '--stage=post';
}
close($RNULL);
#############################################################################
# All done.
#############################################################################
$logger->update_pbar(100);
$logger->info( "\n\n\tcPanel update completed\n\n", 1 );
$logger->info("A log of this update is available at $logfile_path\n\n");
# this happens on exit so it shouldn't be necessary
$logger->info("Removing upcp pidfile");
unlink $pidfile if -f $pidfile || $logger->warn("Could not delete pidfile $pidfile : $!");
my $update_blocks_fname = '/var/cpanel/update_blocks.config';
if ( -s $update_blocks_fname ) {
$logger->warning("NOTE: A system upgrade was not possible due to the following blockers:\n");
if ( open( my $blocks_fh, '<', $update_blocks_fname ) ) {
while ( my $line = readline $blocks_fh ) {
my ( $level, $message ) = split /,/, $line, 2;
# Not using the level in the log, cause the logger can emit additional messages
# on some of the levels used (fatal emits an 'email message', etc)
# Remove URL from log output. Make sure message is defined.
if ($message) {
$message =~ s/<a.*?>//ig;
$message =~ s{</a>}{}ig;
}
$logger->warning( uc("[$level]") . " - $message" );
}
}
else {
$logger->warning("Unable to open blocks file! Please review '/var/cpanel/update_blocks.config' manually.");
}
}
else {
$logger->info("\n\nCompleted all updates\n\n");
}
$logger->close_log();
return 0;
}
#############################################################################
######[ Subroutines ]########################################################
#############################################################################
sub analyze_and_report_error {
my %info = @_;
my $type = $info{type} or die;
my $exit_status = $info{exit_status};
if ( $exit_status == 0 ) {
if ( defined $info{success_msg} ) {
$logger->info( $info{success_msg} );
}
return;
}
my $msg = $info{error_msg} or die;
my @extra;
if ( ref $info{extra} ) {
@extra = @{ $info{extra} };
}
my $logfile_content = Cpanel::LoadFile::loadfile_r($logfile_path);
# add events to the end of the error log
if ( try( sub { Cpanel::LoadModule::load_perl_module("Cpanel::Logs::ErrorEvents") } ) ) {
my ($events) = Cpanel::Logs::ErrorEvents::extract_events_from_log( log => $logfile_content, after_line => $info{last_logfile_position} );
if ( $events && ref $events && scalar @$events ) {
my $events_str = join ', ', map { qq["$_"] } @$events;
$events_str = qq[The following events were logged: ${events_str}.];
$msg =~ s{(Please check)}{${events_str} $1} or $msg .= ' ' . $events_str;
}
}
$logger->error( $msg, 1 );
if ( try( sub { Cpanel::LoadModule::load_perl_module("Cpanel::iContact::Class::$type") } ) ) {
require Cpanel::Notify;
Cpanel::Notify::notification_class(
'class' => $type,
'application' => $type,
'constructor_args' => [
'exit_code' => $exit_status,
'events_after_line' => $info{last_logfile_position},
@extra,
'attach_files' => [ { 'name' => 'update_log.txt', 'content' => $logfile_content, 'number_of_preview_lines' => 25 } ]
]
);
}
elsif (
!try(
sub {
Cpanel::LoadModule::load_perl_module("Cpanel::iContact");
Cpanel::iContact::icontact(
'application' => 'upcp',
'subject' => 'cPanel & WHM update failure (upcp)',
'message' => $msg,
);
}
)
) {
$logger->error('Failed to send contact message');
}
return 1;
}
#############################################################################
sub kill_upcp {
my $pid = shift or die;
my $status = shift || 'hanging';
my $msg = shift || "/usr/local/cpanel/scripts/upcp was running as pid '$pid' for longer than 6 hours. cPanel will kill this process and run a new upcp in its place.";
# Attempt to notify admin of the kill.
if ( try( sub { Cpanel::LoadModule::load_perl_module("Cpanel::iContact::Class::upcp::Killed") } ) ) {
require Cpanel::Notify;
Cpanel::Notify::notification_class(
'class' => 'upcp::Killed',
'application' => 'upcp::Killed',
'constructor_args' => [
'upcp_path' => '/usr/local/cpanel/scripts/upcp',
'pid' => $pid,
'status' => $status,
'attach_files' => [ { 'name' => 'update_log.txt', 'content' => Cpanel::LoadFile::loadfile_r($logfile_path), 'number_of_preview_lines' => 25 } ]
]
);
}
else {
try(
sub {
Cpanel::LoadModule::load_perl_module("Cpanel::iContact");
Cpanel::iContact::icontact(
'application' => 'upcp',
'subject' => "cPanel update $status",
'message' => $msg,
);
}
);
}
print "Sending kill signal to process group for $pid\n";
kill -1, $pid; # Kill the process group
for ( 1 .. 60 ) {
print "Waiting for processes to die\n";
waitpid( $pid, POSIX::WNOHANG() );
last if ( !kill( 0, $pid ) );
sleep 1;
}
if ( kill( 0, $pid ) ) {
print "Could not kill upcp nicely. Doing kill -9 $pid\n";
kill 9, $pid;
}
else {
print "Done!\n";
}
return;
}
#############################################################################
sub setupenv {
Cpanel::Env::clean_env();
delete $ENV{'DOCUMENT_ROOT'};
delete $ENV{'SERVER_SOFTWARE'};
if ( $ENV{'WHM50'} ) {
$ENV{'GATEWAY_INTERFACE'} = 'CGI/1.1';
}
( $ENV{'USER'}, $ENV{'HOME'} ) = ( getpwuid($>) )[ 0, 7 ];
$ENV{'PATH'} .= ':/sbin:/usr/sbin:/usr/bin:/bin:/usr/local/bin';
$ENV{'LANG'} = 'C';
$ENV{'LC_ALL'} = 'C';
}
sub unset_rlimits {
# This is required if upcp started running from a pre-1132
eval {
local $SIG{__DIE__};
require Cpanel::Rlimit;
Cpanel::Rlimit::set_rlimit_to_infinity();
};
# CPANEL-43452: Ensure consistent rlimit value between UI and CLI
eval {
local $SIG{__DIE__};
Cpanel::Rlimit::set_rlimit( $rlimit_max, [qw/NOFILE/] );
};
}
#############################################################################
sub setup_updatelogs {
return if ( -d '/var/cpanel/updatelogs' );
unlink('/var/cpanel/updatelogs');
mkdir( '/var/cpanel/updatelogs', 0700 );
}
sub set_cron_env {
# Do not override the env var if set.
return 'env var CPANEL_IS_CRON was present before this process started.' if ( defined $ENV{'CPANEL_IS_CRON'} );
if ( grep { $_ eq '--cron' } @ARGV ) {
$ENV{'CPANEL_IS_CRON'} = 1;
return 'cron mode set from command line';
}
if ( $ARGV[0] eq 'manual' ) {
$ENV{'CPANEL_IS_CRON'} = 0;
return 'manual flag passed on command line';
}
if ($forced) {
$ENV{'CPANEL_IS_CRON'} = 0;
return '--force passed on command line';
}
if ( -t STDOUT ) {
$ENV{'CPANEL_IS_CRON'} = 0;
return 'Terminal detected';
}
if ( $ENV{'SSH_CLIENT'} ) {
$ENV{'CPANEL_IS_CRON'} = 0;
return 'SSH connection detected';
}
# cron sets TERM=dumb
if ( $ENV{'TERM'} eq 'dumb' ) {
$ENV{'CPANEL_IS_CRON'} = 1;
return 'TERM detected as set to dumb';
}
# Check if parent is whostmgr
if ( readlink( '/proc/' . getppid() . '/exe' ) =~ m/whostmgrd/ ) {
$ENV{'CPANEL_IS_CRON'} = 0;
return 'parent process is whostmgrd';
}
# Default to cron enabled.
$ENV{'CPANEL_IS_CRON'} = 1;
return 'default';
}
#############################################################################
sub fetch_cpanel_version {
my $version;
my $version_file = '/usr/local/cpanel/version';
return if !-f $version_file;
my $fh;
local $/ = undef;
return if !open $fh, '<', $version_file;
$version = <$fh>;
close $fh;
$version =~ s/^\s+|\s+$//gs;
return $version;
}
#############################################################################
sub monitor_upcp {
my $updatepid = shift or die;
$0 = 'cPanel Update (upcp) - Master';
$SIG{INT} = $SIG{TERM} = sub {
print "User hit ^C\n";
if ( -f $upcp_disallowed_path ) {
print "Not allowing upcp slave to be killed during updatenow, just killing monitoring process.\n";
exit;
}
print "killing upcp\n";
kill_upcp( $updatepid, "aborted", "/usr/local/cpanel/scripts/upcp was aborted by the user hitting Ctrl-C." );
exit;
};
$SIG{HUP} = sub {
print "SIGHUP detected; closing monitoring process.\n";
print "The upcp slave has not been affected\n";
exit;
};
# Wait till the file shows up.
until ( -e $logfile_path ) {
select undef, undef, undef, .25; # sleep just a bit
}
# Wait till we're allowed to open it.
my $fh;
until ( defined $fh && fileno $fh ) {
$fh = IO::Handle->new();
if ( !open $fh, '<', $logfile_path ) {
undef $fh;
select undef, undef, undef, .25; # sleep just a bit
next;
}
}
# Read the file until the pid dies.
my $child_done = 0;
while (1) {
# Read all the available lines.
while (1) {
my $line = <$fh>;
last if ( !defined $line || $line eq '' );
print $line;
}
# Once the child is history, we need to do yet one more final read,
# on the off chance (however remote) that she has written one last
# hurrah after we last checked. Hence the following.
last if $child_done; # from prev. pass
$child_done = 1 if -1 == waitpid( $updatepid, 1 ); # and loop back for one more read
select undef, undef, undef, .25; # Yield idle time to the cpu
}
close $fh if $fh;
exit;
}
sub _logger {
return $logger if $logger;
$logger = Cpanel::Update::Logger->new( { 'logfile' => $logfile_path, 'stdout' => 1, 'log_level' => 'info' } );
# do not set the pbar in the constructor to do not display the 0 % in bg mode
$logger->{pbar} = $pbar_starting_point;
return $logger;
}
sub _determine_logfile_path_if_running ($pid) {
my $upid = Cpanel::UPID::get($pid);
return $upid ? "/var/cpanel/updatelogs/update.$upid.log" : undef;
}
#----------------------------------------------------------------------
# HANDLE WITH CARE!! This string is parsed
# in at least one place. (cf. Cpanel::Update::Start)
sub _message_about_newly_started ( $updatepid, $logfile_path ) {
return "upcp is going into background mode (PID $updatepid). You can follow “$logfile_path” to watch its progress.";
}
#----------------------------------------------------------------------
# HANDLE WITH CARE!! This string is parsed
# in at least one place. (cf. Cpanel::Update::Start)
sub _message_about_already_running ( $curpid, $logpath ) {
return "cPanel Update (upcp) is already running. Please wait for the previous upcp (PID $curpid, log file “$logpath”) to complete, then try again. You can use the command 'ps --pid $curpid' to check if the process is running. You may wish to use '--force'.";
}
1;