478 lines
13 KiB
Perl
Executable File
478 lines
13 KiB
Perl
Executable File
#! /usr/bin/perl -wT
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#----------------------------------------------------------------------
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# heading : Administration
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# description : View log files
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# navigation : 4000 4400
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#
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# $Id: viewlogfiles,v 1.31 2005/08/25 21:08:41 charlieb Exp $
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#----------------------------------------------------------------------
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# copyright (C) 1999-2007 Mitel Networks Corporation
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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#----------------------------------------------------------------------
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use strict;
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use esmith::FormMagick;
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use esmith::ConfigDB;
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use esmith::cgi;
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use Time::TAI64;
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use File::Basename;
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use HTML::Entities;
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use CGI;
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use constant TRUE => 1;
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use constant FALSE => 0;
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my $viewlogfiles = esmith::ConfigDB->open->get('viewlogfiles');
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my $fm = esmith::FormMagick->new();
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my $q = CGI->new();
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# Save this operation preference for later.
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my $operation = $q->param('operation');
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$viewlogfiles->merge_props('DefaultOperation', $operation)
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if $operation;
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if ($operation and $operation eq 'download')
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{
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perform_download($fm, $q);
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}
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else
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{
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#$fm->debug(1);
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$fm->display();
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}
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=pod
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=head1 NAME
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viewlogfiles -- An interface to system log files, allowing for pattern
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filtering and highlighting.
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=head2 DESCRIPTION
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This screen allows the administrator to flexibly view various system log files.
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=begin testing
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use esmith::FormMagick::Tester;
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use esmith::TestUtils;
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use esmith::ConfigDB;
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use esmith::AccountsDB;
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my $panel = $Original_File;
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my $ua = esmith::FormMagick::Tester->new();
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my $c = esmith::ConfigDB->open();
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my $a = esmith::AccountsDB->open();
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is (mode($panel), '4755', "Check permissions on script");
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ok ($ua->get_panel($panel), "ABOUT TO RUN L10N TESTS");
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is ($ua->{status}, 200, "200 OK");
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ok ($ua->set_language("en-us"), "Set language to English");
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ok ($ua->get_panel($panel), "Get panel");
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is ($ua->{status}, 200, "200 OK");
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like($ua->{content}, qr/View log files/, "Saw translated form title");
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# View the messages log:
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$ua->field("filename" => "messages");
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$ua->field(highlightPattern => "");
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$ua->field(matchPattern => "");
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ok ($ua->click("View log file"), "Click View log file");
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is ($ua->{status}, 200, "200 OK");
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like($ua->{content}, qr/Viewed at/, "Saw validation messages");
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# View the messages log and filter all output:
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ok ($ua->get_panel($panel), "Get panel");
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$ua->field("filename" => "messages");
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$ua->field(highlightPattern => "gibberish-gibberish");
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$ua->field(matchPattern => "gibberish-gibberish");
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ok ($ua->click("View log file"), "Click View log file");
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is ($ua->{status}, 200, "200 OK");
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like($ua->{content}, qr/No matching lines/, "Saw validation messages");
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=end testing
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=cut
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#------------------------------------------------------------
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# subroutine to display initial form
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#------------------------------------------------------------
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our %logfiles = ();
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sub timestamp2local
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{
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$_ = shift;
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if (/^(\@[0-9a-f]{24})(.*)/s)
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{
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return Time::TAI64::tai64nlocal($1) . $2;
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}
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elsif (/^([0-9]{10}\.[0-9]{3})(.*)/s)
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{
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return localtime($1) . $2;
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}
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return $_;
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}
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sub findlogFiles
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{
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my $fm = shift;
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my $q = $fm->{cgi};
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use File::Find;
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sub findlogfiles
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{
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my $path = $File::Find::name;
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if (-f)
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{
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# Remove leading /var/log/messages
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$path =~ s:^/var/log/::;
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# don't bother to collect files known to be non-text
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# or not log files
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foreach (qw(
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lastlog
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btmp$
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wtmp
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lock
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(?<!qpsmtpd/)state
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httpd/ssl_mutex.\d*
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httpd/ssl_scache.pag
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httpd/ssl_scache.dir
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\/config$
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))
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{
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return if $path =~ /$_/;
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}
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my ($file_base, $file_path, $file_type) = fileparse($path);
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if ( $file_base =~ /@.*/ )
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{
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$logfiles{$path} = $file_path . timestamp2local($file_base);
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}
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else
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{
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$logfiles{$path} = $path;
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}
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}
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}
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# Now go and find all the files under /var/log
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find({wanted => \&findlogfiles, no_chdir => 1}, '/var/log');
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return \%logfiles;
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}
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#------------------------------------------------------------
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# subroutine to perform actions and display result
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#------------------------------------------------------------
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sub performAndShowResult ($)
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{
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my $fm = shift;
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my $q = $fm->{cgi};
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#------------------------------------------------------------
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# Verify the arguments and untaint the variables (see Camel
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# book, "Detecting and laundering tainted data", pg. 358)
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#------------------------------------------------------------
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my $filename = $q->param ('filename');
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if ($filename =~ /^([\S\s]+)$/)
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{
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$filename = $1;
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}
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elsif ($filename =~ /^$/)
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{
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$filename = "messages";
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}
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else
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{
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print $fm->localise("FILENAME_ERROR", { filename => "$filename" } );
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return;
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}
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my $matchPattern = $q->param ('matchPattern');
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if ($matchPattern =~ /^(\S+)$/)
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{
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$matchPattern = $1;
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}
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else
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{
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$matchPattern = ".";
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}
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my $highlightPattern = $q->param ('highlightPattern');
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if ($highlightPattern =~ /^(\S+)$/)
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{
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$highlightPattern = $1;
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}
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else
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{
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$highlightPattern = '';
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}
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#------------------------------------------------------------
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# Looks good; go ahead and generate the report.
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#------------------------------------------------------------
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my $fullpath = "/var/log/$filename";
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if (-z $fullpath)
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{
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print $fm->localise("LOG_FILE_EMPTY", { filename => "$filename" } );
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return;
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}
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print "$fullpath: \n";
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print $fm->localise("VIEWING_TIME",
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{ time => $fm->gen_locale_date_string() } );
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unless ( $matchPattern eq '.' )
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{
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print "<p>\n";
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print $fm->localise("MATCH_HEADER", { matchPattern => "$matchPattern" } );
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}
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if ( $highlightPattern )
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{
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print "<p>\n";
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print $fm->localise("HIGHLIGHT_HEADER", { highlightPattern => "$highlightPattern" } );
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}
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if ($filename =~ /\.gz$/)
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{
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my $pid = open(LOGFILE, "-|");
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die "Couldn't fork: $!" unless defined $pid;
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unless ($pid)
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{
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# Child
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exec("/bin/zcat", $fullpath)
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|| die "Can't exec zcat: $!";
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# NOTREACHED
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}
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}
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else
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{
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open(LOGFILE, "$fullpath");
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}
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my $somethingMatched = 0;
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my $fileEmpty = 1;
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print "<PRE>";
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while(<LOGFILE>)
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{
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$fileEmpty = 0;
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next unless /$matchPattern/;
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$somethingMatched = 1;
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$_ = timestamp2local($_);
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$_ = HTML::Entities::encode_entities($_);
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($highlightPattern && /$highlightPattern/)
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? print "<b>$_</b>"
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: print;
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}
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print "</PRE>";
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if ($fileEmpty)
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{
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print "<p>\n";
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print $fm->localise("LOG_FILE_EMPTY");
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}
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else
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{
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unless ($somethingMatched)
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{
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print "<p>\n";
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print $fm->localise("NO_MATCHING_LINES");
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}
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}
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close LOGFILE;
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print $q->table({-width => '100%'},
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$q->Tr($q->th({-class => 'sme-layout'},
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$q->a( { -href => "viewlogfiles?page=0&Next=viewLog" .
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"&filename=$filename&matchPattern=$matchPattern" .
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"&highlightPattern=$highlightPattern" .
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"&operation=view",
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-class => 'button-like'},
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$fm->localise('REFRESH')))));
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return;
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}
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sub print_viewlog_buttons
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{
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my $self = shift;
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my $q = $self->{cgi};
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my $filename = $q->param('filename');
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my $matchPattern = $q->param('matchPattern');
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my $highlightPattern = $q->param('highlightPattern');
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print $q->table({-width => '100%'},
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$q->Tr({-valign => 'center'},
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$q->th({-class => 'sme-layout', -valign => 'center'},
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$q->a( { -href => "viewlogfiles?page=0&Next=viewLog" .
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"&filename=$filename&matchPattern=$matchPattern" .
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"&highlightPattern=$highlightPattern" .
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"&skip_header=1",
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-class => 'button-like'},
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$self->localise('DOWNLOAD')),
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$q->submit( {-value => $self->localise('VIEW') } ))));
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return undef;
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}
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sub perform_download
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{
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my $fm = shift;
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my $q = shift;
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my $filename = $q->param("filename");
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my $fullpath = "/var/log/$filename";
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# Save this information for later.
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my $operation = $q->param('operation');
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$viewlogfiles->merge_props('DefaultOperation', $operation);
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# If the client is on windows, we must handle this a little differently.
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my $win32 = FALSE;
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my $mac = FALSE;
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my $agent = $ENV{HTTP_USER_AGENT} || "";
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if ($agent =~ /win32|windows/i)
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{
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$win32 = TRUE;
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}
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elsif ($agent =~ /mac/i)
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{
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$mac = TRUE;
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}
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# Check for errors first. Once we start sending the file it's too late to
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# report them.
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my $error = "";
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unless (-f $fullpath)
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{
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$error = $fm->localise("ERR_NOEXIST_FILE");
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}
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local *FILE;
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open(FILE, "<$fullpath")
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or $error = $fm->localise("ERR_NOOPEN_FILE");
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# Put other error checking here.
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if ($error)
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{
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# FIXME: Add the header and footer template references here.
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print <<"EOF";
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Content-Type: text/html
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$error
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EOF
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return undef;
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}
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# Fix the filename, as it might have a directory prefixed to it.
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if ($filename =~ m#/#)
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{
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$filename = (split /\//, $filename)[-1];
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}
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# Otherwise, send the file. Start with the headers.
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# Note: The Content-disposition must be attachment, or IE will view the
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# file inline like it's told. It ignores the Content-type, but it likes
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# the Content-disposition (an officially unsupported header) for some
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# reason. Yay Microsoft.
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print <<"EOF";
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Expires: 0
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Content-type: application/octet-stream
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Content-disposition: attachment; filename=$filename
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EOF
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# And send the file.
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my $nl = "\n";
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if ($win32) { $nl = "\r\n" }
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elsif ($mac) { $nl = "\r" }
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while (my $line = <FILE>)
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{
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chomp $line;
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print timestamp2local($line) . $nl;
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}
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close(FILE);
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return undef;
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}
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sub show_operation_widget
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{
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my $self = shift;
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my $q = $self->{cgi};
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my $description = $self->localise('OP_DESC');
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my $label = $self->localise('OP_LABEL');
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my $defaultop = $viewlogfiles->prop('DefaultOperation');
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my $select = '<select name="operation" size="1">' . "\n";
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if ($defaultop eq 'view')
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{
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$select .= '<option value="view" selected>' .
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$self->localise("VIEW") . '</option>' . "\n";
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$select .= '<option value="download">' .
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$self->localise("DOWNLOAD") . '</option>' . "\n";
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}
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else
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{
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$select .= '<option value="view">' .
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$self->localise("VIEW") . '</option>' . "\n";
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$select .= '<option value="download" selected>' .
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$self->localise("DOWNLOAD") . '</option>' . "\n";
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}
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$select .= '</select>' . "\n";
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print $q->Tr($q->td({-colspan => 2}, $description));
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print $q->Tr($q->td({-class => 'sme-noborders-label'}, $label),
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$q->td({-class => 'sme-noborders-content'}, $select));
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return undef;
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}
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__DATA__
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<form title="View log files" header="/etc/e-smith/web/common/head.tmpl" footer="/etc/e-smith/web/common/foot.tmpl">
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<page name="Initial"
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pre-event="print_status_message()">
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<description>FIRSTPAGE_DESC</description>
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<field type="select" id="filename" options="findlogFiles()"
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value="messages">
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<label>LOG_FILE_SELECT_DESC</label>
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</field>
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<field type="text" id="matchPattern">
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<description>FILTER_PATTERN_DESC</description>
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<label>FILTER_PATTERN_LABEL</label>
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</field>
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<field type="text" id="highlightPattern">
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<description>MATCH_PATTERN_DESC</description>
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<label>MATCH_PATTERN_LABEL</label>
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</field>
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<subroutine src="show_operation_widget()" />
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<field type="literal">
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<description>END_DESC</description>
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</field>
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<subroutine src="print_button('NEXT')" />
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</page>
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<page name="viewLog" pre-event="turn_off_buttons()">
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<subroutine src="performAndShowResult()" />
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</page>
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</form>
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