216 lines
6.1 KiB
Perl
216 lines
6.1 KiB
Perl
#!/usr/bin/env perl
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#
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# Perl frontend to SquidAnalyzer.pm.
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#
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use strict;
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use SquidAnalyzer;
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use Getopt::Long qw(:config no_ignore_case bundling);
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use Benchmark;
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use POSIX ":sys_wait_h";
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$| = 1;
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my $DEFAULT_CONFFILE = '/etc/squidanalyzer/squidanalyzer.conf';
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my @logfile = ();
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my $obsolete = 0;
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my $configfile = '';
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my $help = '';
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my $rebuild = '';
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my $preserve = '';
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my $debug = 0;
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my $version = 0;
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my $build_date = '';
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my $pid_dir = '/tmp';
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my $pidfile = 'squid-analyzer.pid';
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my $queue_size = 0;
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my $timezone = '';
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my $no_year_stat = 0;
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my $no_week_stat = 0;
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my $t0 = Benchmark->new;
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# get the command line parameters
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my $result = GetOptions (
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"c|configfile=s" => \$configfile,
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"b|build_date=s" => \$build_date,
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"d|debug!" => \$debug,
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"h|help" => \$help,
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"j|jobs=i" => \$queue_size,
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"l|logfile" => \$obsolete,
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"p|preserve=i" => \$preserve,
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"P|pid_dir=s" => \$pid_dir,
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"r|rebuild!" => \$rebuild,
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"t|timezone=s" => \$timezone,
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"v|version!" => \$version,
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"no-year-stat!" => \$no_year_stat,
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"no-week-stat!" => \$no_week_stat,
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);
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# Show warning for obsolete options
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if ($obsolete) {
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print STDERR "WARNING: use of obsolete -l option, log files must be given at command line arguments.\n"
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}
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# Show version and exit
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if ($version || $debug) {
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print "SquidAnalyzer version $SquidAnalyzer::VERSION\n";
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exit 0 if ($version);
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}
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if ($build_date) {
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$rebuild = 1;
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if ( ($build_date !~ /^\d{4}-\d{2}-\d{2}$/) && ($build_date !~ /^\d{4}-\d{2}$/) && ($build_date !~ /^\d{4}$/) ) {
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die("FATAL: bad syntax for build_date, expecting format: yyyy-mm-dd, yyyy-mm or yyyy\n");
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exit 0;
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}
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}
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# Add multiple log files given from command line
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foreach my $f (@ARGV) {
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push(@logfile, $f) if (-f $f && !-z $f);
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}
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# Set default configuration file
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$configfile ||= $DEFAULT_CONFFILE;
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if ($help) {
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&usage;
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exit;
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}
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# Check if an other process is already running
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if (-e "$pid_dir/$pidfile") {
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die "FATAL: pid file ($pid_dir/$pidfile) exists, an other squid-analalyzer process may still running.\n";
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}
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# Write the pid file
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open(OUT, ">$pid_dir/$pidfile") or die "FATAL: can not write to pid file $pid_dir/$pidfile, $!\n";
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print OUT "$$";
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close(OUT);
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# Clear multiprocess temporary file if any
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unlink("$pid_dir/last_parsed.tmp");
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# Instanciate SquidAnalyzer.pm perl module
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my $sa = new SquidAnalyzer($configfile, join(',', @logfile), $debug, $rebuild, $pid_dir, $pidfile, $timezone);
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$sa->{no_year_stat} = $no_year_stat;
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$sa->{no_week_stat} = $no_week_stat;
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$sa->{queue_size} = $queue_size;
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# Die cleanly on signal
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sub terminate
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{
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# block signal
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local $SIG{TERM} = 'IGNORE';
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local $SIG{INT} = 'IGNORE';
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print("LOG: Received terminating signal.\n");
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$sa->{terminate} = 1;
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# Save last parse line
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$sa->save_current_line();
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# Wait for all child processes to die except for the logger
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my $kid = 0;
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do {
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sleep(1);
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$kid = waitpid(-1, WNOHANG);
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} while ($kid > 0);
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# Removed pid iand temp file
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if (-e "$pid_dir/$pidfile") {
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unlink("$pid_dir/$pidfile") or print("ERROR: Unable to remove pid file $pid_dir/$pidfile, $!\n");
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}
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if (-e "$pid_dir/last_parsed.tmp") {
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unlink("$pid_dir/last_parsed.tmp") or print("ERROR: Unable to remove temp file $pid_dir/last_parsed.tmp, $!\n");
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}
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exit 0;
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}
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# Handle signals to die cleanly
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$SIG{'INT'} = \&terminate;
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$SIG{'TERM'} = \&terminate;
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$SIG{'CHLD'} = 'DEFAULT';
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my $t1;
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# Run parsing only if we have a log file or that we are not in rebuild mode
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if (!$rebuild || ($#{$sa->{LogFile}} >= 0)) {
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$sa->parseFile();
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if ($debug) {
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$t1 = Benchmark->new;
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my $td = timediff($t1, $t0);
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print STDERR "DEBUG: the log statistics gathering took:", timestr($td), "\n";
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}
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}
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# Remove old statistics
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if ($preserve) {
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$sa->{preserve} = $preserve;
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}
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# In rebuild mode history time is not use and we must store the
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# specific rebuild date if any is provided at command line.
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if ($rebuild) {
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$sa->{history_time} = '';
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$sa->{build_date} = $build_date;
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}
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# Generate graphics and html
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$sa->buildHTML();
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if ($debug) {
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my $t2 = Benchmark->new;
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if (defined $t1) {
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my $td = timediff($t2, $t1);
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print STDERR "DEBUG: generating HTML output took:", timestr($td), "\n";
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}
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my $td = timediff($t2, $t0);
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print STDERR "DEBUG: total execution time:", timestr($td), "\n";
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}
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# Remove PID file
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unlink("$pid_dir/$pidfile");
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exit(0);
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sub usage
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{
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print qq{
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Usage: squid-analyzer [ -c squidanalyzer.conf ] [logfile(s)]
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-c | --configfile filename : path to the SquidAnalyzer configuration file.
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By default: $DEFAULT_CONFFILE
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-b | --build_date date : set the date to be rebuilt, format: yyyy-mm-dd
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or yyyy-mm or yyyy. Used with -r or --rebuild.
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-d | --debug : show debug information.
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-h | --help : show this message and exit.
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-j | --jobs number : number of jobs to run at same time. Default is 1,
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run as single process.
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-p | --preserve number : used to set the statistic obsolescence in
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number of month. Older stats will be removed.
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-P | --pid_dir directory : set directory where pid file will be stored.
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Default /tmp/
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-r | --rebuild : use this option to rebuild all html and graphs
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output from all data files.
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-t, --timezone +/-HH : set number of hours from GMT of the timezone.
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Use this to adjust date/time of SquidAnalyzer
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output when it is run on a different timezone
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than the squid server.
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-v | version : show version and exit.
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--no-year-stat : disable years statistics, reports will start
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from month level only.
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--no-week-stat : disable weekly statistics.
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Log files to parse can be given as command line arguments or as a comma separated
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list of file for the LogFile configuration directive. By default SquidAnalyer will
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use file: /var/log/squid/access.log
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};
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exit 0;
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}
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