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author | Angelo Naselli <anaselli@linux.it> | 2014-03-08 18:07:49 +0100 |
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committer | Angelo Naselli <anaselli@linux.it> | 2014-03-08 18:07:49 +0100 |
commit | b7a2fb5401c2fb44574b78598e7eefbfe6645119 (patch) | |
tree | 2cc03d911d9b02a6d7939216016ada8ebaaede98 /lib/AdminPanel/Module | |
parent | 036d607b90e6727ffc08026a120e2693ba7ef87f (diff) | |
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Added new logviewer based on systemd journal
Diffstat (limited to 'lib/AdminPanel/Module')
-rw-r--r-- | lib/AdminPanel/Module/LogViewer.pm | 537 |
1 files changed, 537 insertions, 0 deletions
diff --git a/lib/AdminPanel/Module/LogViewer.pm b/lib/AdminPanel/Module/LogViewer.pm new file mode 100644 index 00000000..dacb98fe --- /dev/null +++ b/lib/AdminPanel/Module/LogViewer.pm @@ -0,0 +1,537 @@ +# vim: set et ts=4 sw=4: +package AdminPanel::Module::LogViewer; +#============================================================= -*-perl-*- + +=head1 NAME + +AdminPanel::Module::LogViewer - Log viewer + +=head1 SYNOPSIS + + my $logViewer = AdminPanel::Module::LogViewer->new(); + $logViewer->start(); + +=head1 DESCRIPTION + +Log viewer is a backend to journalctl, it can also load a custom +file. + + +=head1 SUPPORT + +You can find documentation for this module with the perldoc command: + +perldoc AdminPanel::Module::::LogViewer + +=head1 AUTHOR + +Angelo Naselli <anaselli@linux.it> + +=head1 COPYRIGHT and LICENSE + +Copyright (C) 2014, Angelo Naselli. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License version 2, as +published by the Free Software Foundation. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + +=head1 FUNCTIONS + +=cut + +use strict; +use open OUT => ':utf8'; + +use AdminPanel::Shared; +use AdminPanel::Shared::Locales; +use AdminPanel::Shared::Services qw (services); +use AdminPanel::Shared::JournalCtl; + + +use POSIX qw/strftime floor/; +use Date::Simple (); +use File::HomeDir qw(home); + +use Moose; +use yui; + +extends qw( AdminPanel::Module ); + +### TODO icon +has '+icon' => ( + default => "/usr/share/mcc/themes/default/logdrake-mdk.png", +); + +# has '+name' => ( +# default => undef, +# ); + +has 'loc' => ( + is => 'rw', + init_arg => undef, + builder => '_localeInitialize' +); + +sub _localeInitialize { + my $self = shift(); + + # TODO fix domain binding for translation + $self->loc(AdminPanel::Shared::Locales->new(domain_name => 'libDrakX-standalone') ); + # TODO if we want to give the opportunity to test locally add dir_name => 'path' +} + +=head1 VERSION + +Version 1.0.0 + +=cut + +our $VERSION = '1.0.0'; + + +my %prior = ('emerg' => 0, + 'alert' => 1, + 'crit' => 2, + 'err' => 3, + 'warning' => 4, + 'notice' => 5, + 'info' => 6, + 'debug' => 7); + + +#============================================================= + +=head2 BUILD + +=head3 INPUT + + $self: this object + +=head3 DESCRIPTION + + The BUILD method is called after a Moose object is created, + in this methods Services loads all the service information. + +=cut + +#============================================================= +sub BUILD { + my $self = shift; + + if (! $self->name) { + $self->name ($self->loc->N("Log viewer")); + } +} + + +#============================================================= + +=head2 start + +=head3 INPUT + + $self: this object + +=head3 DESCRIPTION + + This method extends Module::start and is invoked to + start adminService + +=cut + +#============================================================= +sub start { + my $self = shift; + + $self->_logViewerPanel(); +}; + + + + + +sub _logViewerPanel { + my $self = shift; + + if(!$self->_warn_about_user_mode()) { + return 0; + } + + my $appTitle = yui::YUI::app()->applicationTitle(); + + ## set new title to get it in dialog + yui::YUI::app()->setApplicationTitle($self->name); + ## set icon if not already set by external launcher + yui::YUI::app()->setApplicationIcon($self->icon); + + my $factory = yui::YUI::widgetFactory; + my $optFactory = yui::YUI::optionalWidgetFactory; + + # Create Dialog + my $dialog = $factory->createMainDialog; + + # Start Dialog layout: + my $vbox = $factory->createVBox( $dialog ); + $vbox->setWeight($yui::YD_HORIZ, 7); + my $align = $factory->createAlignment($vbox, $yui::YAlignCenter, $yui::YAlignUnchanged); + $factory->createLabel( $align, $self->loc->N("A tool to monitor your logs"), 1, 0 ); + + #### matching + my $hbox = $factory->createHBox($vbox); + my $matchingInputField = $factory->createInputField($hbox, $self->loc->N("Matching")); + $factory->createHSpacing($hbox, 1); + + #### not matching + my $notMatchingInputField = $factory->createInputField($hbox, $self->loc->N("but not matching")); + $matchingInputField->setWeight($yui::YD_HORIZ, 1); + $notMatchingInputField->setWeight($yui::YD_HORIZ, 1); + + $hbox = $factory->createHBox($vbox); + my $frame = $factory->createFrame($hbox, $self->loc->N("Options")); + $frame->setStretchable($yui::YD_HORIZ, 1); + + #### search + my $searchButton = $factory->createPushButton($hbox, $self->loc->N("search")); + #$searchButton->setStretchable($yui::YD_HORIZ, 0); + + $frame->setWeight($yui::YD_HORIZ, 2); + #$searchButton->setWeight($yui::YD_HORIZ, 1); + + + $hbox = $factory->createHBox($frame); +# $align = $factory->createLeft($hbox); + + $frame = $factory->createFrame($hbox, ""); + $frame->setWeight($yui::YD_HORIZ, 1); + + my $vbox1 = $factory->createVBox( $frame ); + + #### units + my $unitsFrame = $factory->createCheckBoxFrame($vbox1, $self->loc->N("Select a unit"), 1); + $unitsFrame->setNotify(1); + my $units = $factory->createComboBox ( $unitsFrame, "" ); + my $itemCollection = new yui::YItemCollection; + + yui::YUI::app()->busyCursor(); + my ($l, $active_services) = AdminPanel::Shared::Services::services(); + + foreach (@{$active_services}) { + my $serviceName = $_; + my $item = new yui::YItem($serviceName); + $itemCollection->push($item); + $item->DISOWN(); + } + $units->addItems($itemCollection); + yui::YUI::app()->normalCursor(); + + $factory->createVSpacing($vbox1, 1); + #### lastBoot + my $lastBoot = $factory->createCheckBox( $vbox1, $self->loc->N("Last boot") , 1 ); + $lastBoot->setNotify(1); + + $frame = $factory->createFrame($hbox, $self->loc->N("Calendar")); + $frame->setWeight($yui::YD_HORIZ, 1); + $vbox1 = $factory->createVBox( $frame ); + #### since and until + my $sinceDate; + my $sinceFrame = $factory->createCheckBoxFrame($vbox1, $self->loc->N("Since"), 1); + $sinceFrame->setNotify(1); + my $untilDate; + $factory->createVSpacing($vbox1, 1); + my $untilFrame = $factory->createCheckBoxFrame($vbox1, $self->loc->N("Until"), 1); + $untilFrame->setNotify(1); + if ($optFactory->hasDateField()) { + $sinceDate = $optFactory->createDateField($sinceFrame, ""); + my $day = strftime "%F", localtime; + $sinceDate->setValue($day); + $untilDate = $optFactory->createDateField($untilFrame, ""); + $untilDate->setValue($day); + } + else { + $sinceFrame->enable(0); + $untilFrame->enable(0); + } + + $frame = $factory->createFrame($hbox, $self->loc->N("Priority")); + $frame->setWeight($yui::YD_HORIZ, 1); + $vbox1 = $factory->createVBox( $frame ); + #### priority + # From + my $priorityFromFrame = $factory->createCheckBoxFrame($vbox1, $self->loc->N("From"), 1); + $priorityFromFrame->setNotify(1); + my $priorityFrom = $factory->createComboBox ( $priorityFromFrame, "" ); + $itemCollection->clear(); + + my @pr = ('emerg', 'alert', 'crit', 'err', + 'warning', 'notice', 'info', 'debug'); + foreach (@pr) { + my $item = new yui::YItem($_); + if ( $_ eq 'emerg' ) { + $item->setSelected(1); + } + $itemCollection->push($item); + $item->DISOWN(); + } + $priorityFrom->addItems($itemCollection); + + $factory->createVSpacing($vbox1, 1); + # To + my $priorityToFrame = $factory->createCheckBoxFrame($vbox1, $self->loc->N("To"), 1); + $priorityToFrame->setNotify(1); + my $priorityTo = $factory->createComboBox ( $priorityToFrame, "" ); + $itemCollection->clear(); + + foreach (@pr) { + my $item = new yui::YItem($_); + if ( $_ eq 'debug' ) { + $item->setSelected(1); + } + $itemCollection->push($item); + $item->DISOWN(); + } + $priorityTo->addItems($itemCollection); + + #### create log view object + my $logView = $factory->createLogView($vbox, $self->loc->N("Log content"), 10, 0); + + + ### NOTE CheckBoxFrame doesn't honoured his costructor checked value for his children + $unitsFrame->setValue(0); + $sinceFrame->setValue(0); + $untilFrame->setValue(0); + $priorityFromFrame->setValue(0); + $priorityToFrame->setValue(0); + + # buttons on the last line + $align = $factory->createRight($vbox); + $hbox = $factory->createHBox($align); + my $aboutButton = $factory->createPushButton($hbox, $self->loc->N("About") ); + $align = $factory->createRight($hbox); + $hbox = $factory->createHBox($align); + my $saveButton = $factory->createPushButton($hbox, $self->loc->N("Save")); + my $quitButton = $factory->createPushButton($hbox, $self->loc->N("Quit")); + + # End Dialof layout + + while(1) { + my $event = $dialog->waitForEvent(); + my $eventType = $event->eventType(); + + #event type checking + if ($eventType == $yui::YEvent::CancelEvent) { + last; + } + elsif ($eventType == $yui::YEvent::WidgetEvent) { + # widget selected + my $widget = $event->widget(); + if ($widget == $quitButton) { + last; + } + elsif($widget == $aboutButton) { + my $license = $self->loc->N($AdminPanel::Shared::License); + + AdminPanel::Shared::AboutDialog({ name => $self->name, + version => $self->VERSION, + copyright => $self->loc->N("Copyright (C) %s Mageia community", '2014'), + license => $license, + comments => $self->loc->N("Log viewer is a systemd journal viewer."), + website => 'http://www.mageia.org', + website_label => $self->loc->N("Mageia"), + authors => "Angelo Naselli <anaselli\@linux.it>\nMatteo Pasotti <matteo.pasotti\@gmail.com>", + translator_credits => + #-PO: put here name(s) and email(s) of translator(s) (eg: "John Smith <jsmith@nowhere.com>") + $self->loc->N("_: Translator(s) name(s) & email(s)\n")} + ); + } + elsif($widget == $saveButton) { + if ($logView->lines()) { + $self->_save($logView); + } + else { + AdminPanel::Shared::warningMsgBox($self->loc->N("Empty log found")); + } + } + elsif ($widget == $searchButton) { + yui::YUI::app()->busyCursor(); + $dialog->startMultipleChanges(); + $logView->clearText(); + my %log_opts; + if ($lastBoot->isChecked()) { + $log_opts{this_boot} = 1; + } + if ($unitsFrame->value()) { + $log_opts{unit} = $units->value(); + } + if ($sinceFrame->value()) { + $log_opts{since} = $sinceDate->value(); + } + if ($untilFrame->value()) { + $log_opts{until} = $untilDate->value(); +# TODO check date until > date since + } + if ($priorityFromFrame->value() || $priorityToFrame->value()) { + my $prio = $priorityFrom->value(); + $prio .= "..".$priorityTo->value() if ($priorityToFrame->value()); + $log_opts{priority} = $prio; +# TODO enabling right using checkBoxes + } + my $log = $self->_search(\%log_opts); +print " log lines: ". scalar (@{$log}) ."\n"; +# TODO check on log line number what to do if too big? and adding a progress bar? + $self->_parse_content({'matching' => $matchingInputField->value(), + 'noMatching' => $notMatchingInputField->value(), + 'log' => $log, + 'logView' => $logView, + } + ); + $dialog->recalcLayout(); + $dialog->doneMultipleChanges(); + yui::YUI::app()->normalCursor(); + } + elsif ($widget == $lastBoot) { + yui::YUI::ui()->blockEvents(); + if ($lastBoot->isChecked()) { + #last boot overrrides until and since + $sinceFrame->setValue(0); + $untilFrame->setValue(0); + } + yui::YUI::ui()->unblockEvents(); + } + elsif ($widget == $sinceFrame) { + yui::YUI::ui()->blockEvents(); + if ($sinceFrame->value()) { + #disabling last boot that overrrides until and since + $lastBoot->setValue(0); + } + yui::YUI::ui()->unblockEvents(); + } + elsif ($widget == $untilFrame) { + yui::YUI::ui()->blockEvents(); + if ($untilFrame->value()) { + #disabling last boot that overrrides until and since + $lastBoot->setValue(0); + } + yui::YUI::ui()->unblockEvents(); + } + + } + } + $dialog->destroy(); + + #restore old application title + yui::YUI::app()->setApplicationTitle($appTitle) if $appTitle; +} + + + +sub _warn_about_user_mode { + my $self = shift; + + my $title = $self->loc->N("Running in user mode"); + my $msg = $self->loc->N("You are launching this program as a normal user.\n". + "You will not be able to read system logs which you do not have rights to,\n". + "but you may still browse all the others."); + + # $EUID: effective user identifier + if(($> != 0) and (!ask_YesOrNo($title, $msg))) { + # TODO add Privileges? + return 0; + } + + return 1; +} + + +## Save as +# +# $logView: log Widget +# +## +sub _save { + my ($self, $logView) = @_; + + yui::YUI::app()->busyCursor(); + + my $outFile = yui::YUI::app()->askForSaveFileName(home(), "*", $self->loc->N("Save as..")); + if ($outFile) { + open(OF, ">".$outFile); + print OF $logView->logText(); + close OF; + } + + yui::YUI::app()->normalCursor(); +} + +## Search call back +sub _search { + my ($self, $log_opts) = @_; + +$DB::single = 1; + my $log = AdminPanel::Shared::JournalCtl->new(%{$log_opts}); + my $all = $log->getLog(); + +print " _search \n"; + return $all; +} + +## _parse_content +# +# $info : HASH cotaining +# +# matching: string to match +# notMatching: string to skip +# log: ARRAY REF to log content +# logViewer: logViewer Widget +# +## +sub _parse_content { + my ($self, $info) = @_; + + $DB::single = 1; + + my $ey = ""; + my $en = ""; + + if( exists($info->{'matching'} ) ){ + $ey = $info->{'matching'}; + } + if( exists($info->{'noMatching'} ) ){ + $en = $info->{'noMatching'}; + } + + $ey =~ s/ OR /|/ if ($ey); + $ey =~ s/^\*$// if ($ey); + $en =~ s/^\*$/.*/ if ($en); + + my $test; + + if ($en && !$ey) { + $test = sub { $_[0] !~ /$en/ }; + } + elsif ($ey && !$en) { + $test = sub { $_[0] =~ /$ey/ }; + } + elsif ($ey && $en) { + $test = sub { $_[0] =~ /$ey/ && $_[0] !~ /$en/ }; + } + else { + $test = sub { $_[0] }; + } + + foreach (@{$info->{log}}) { + $info->{logView}->appendLines($_) if $test->($_); + } + +} + + +1 |