lilalo
view l3-agent @ 62:c4bea959dbb1
Beautyfication of l3-agent code. Many lines were erased. Need to be tested
| author | devi |
|---|---|
| date | Thu Jan 26 00:00:53 2006 +0200 (2006-01-26) |
| parents | 93e98a3fa44d |
| children | b7a217f8e963 |
line source
1 #!/usr/bin/perl -w
3 #
4 # (c) Igor Chubin, igor@chub.in, 2004-2006
5 #
8 ## Эта строчка добавлена из блокнота Windows
9 ## Надо отдать должное, он каким-то образом научился понимать кодировку
11 use strict;
12 use POSIX;
13 use Term::VT102;
14 use Text::Iconv;
15 use Time::Local 'timelocal_nocheck';
16 use IO::Socket;
18 use lib "/usr/local/bin";
19 use l3config;
22 our @Command_Lines;
23 our @Command_Lines_Index;
24 our %Diffs;
25 our %Sessions;
27 our %Script_Files; # Информация о позициях в скрипт-файлах,
28 # до которых уже выполнен разбор
29 # и информация о времени модификации файла
30 # $Script_Files{$file}->{size}
31 # $Script_Files{$file}->{tell}
33 our $Killed =0; # В режиме демона -- процесс получил сигнал о завершении
35 sub init_variables;
36 sub main;
38 sub load_diff_files;
39 sub bind_diff;
40 sub extract_commands_from_cline;
41 sub load_command_lines;
42 sub sort_command_lines;
43 sub print_command_lines;
44 sub printq;
46 sub save_cache_stat;
47 sub load_cache_stat;
48 sub print_session;
50 sub load_diff_files
51 {
52 my @pathes = @_;
54 for my $path (@pathes) {
55 my $template = "*.diff";
56 my @files = <$path/$template>;
57 my $i=0;
58 for my $file (@files) {
60 next if defined($Diffs{$file});
62 my %diff;
64 $diff{"path"}=$path;
65 $diff{"uid"}="SET THIS";
67 # Сейчас UID определяется из названия каталога
68 # откуда берутся diff-файлы
69 # Это неправильно
70 #
71 # ВАРИАНТ:
72 # К файлам жураналам должны прилагаться ситемны файлы,
73 # мз которых и будет определяться соответствие
74 # имён пользователей их uid'ам
75 #
76 $diff{"uid"} = 0 if $path =~ m@/root/@;
78 $diff{"bind_to"}="";
79 $diff{"time_range"}=-1;
81 next if not $file=~m@/(D?[0-9][0-9]?[0-9]?)[^/]*?([0-9]*):([0-9]*):?([0-9]*)@;
82 $diff{"day"}=$1 || "";
83 $diff{"hour"}=$2;
84 $diff{"min"}=$3;
85 $diff{"sec"}=$4 || 0;
87 $diff{"index"}=$i;
89 print "diff loaded: $diff{day} $diff{hour}:$diff{min}:$diff{sec}\n";
91 local $/;
92 open (F, "$file")
93 or return "Can't open file $file ($_[0]) for reading";
94 my $text = <F>;
95 if ($Config{"encoding"} && $Config{"encoding"} !~ /^utf-8$/i) {
96 my $converter = Text::Iconv->new($Config{"encoding"}, "utf-8");
97 $text = $converter->convert($text);
98 }
99 close(F);
100 $diff{"text"}=$text;
101 #print "$file loaded ($diff{day})\n";
103 #push @Diffs, \%diff;
104 $Diffs{$file} = \%diff;
105 $i++;
106 }
107 }
108 }
111 sub bind_diff
112 {
113 # my $path = shift;
114 # my $pid = shift;
115 # my $day = shift;
116 # my $lab = shift;
118 print "Trying to bind diff...\n";
120 my $cl = shift;
121 my $hour = $cl->{"hour"};
122 my $min = $cl->{"min"};
123 my $sec = $cl->{"sec"};
125 my $min_dt = 10000;
127 for my $diff_key (keys %Diffs) {
128 my $diff = $Diffs{$diff_key};
129 # Check here date, time and user
130 next if ($diff->{"day"} && $cl->{"day"} && ($cl->{"day"} ne $diff->{"day"}));
131 #next if (!$diff->{"uid"} && $cl->{"euid"} != $diff->{"uid"});
133 my $dt=($diff->{"hour"}-$hour)*3600 +($diff->{"min"}-$min)*60 + ($diff->{"sec"}-$sec);
134 if ($dt >0 && $dt < $min_dt && ($diff->{"time_range"} <0 || $dt < $diff->{"time_range"})) {
135 print "Approppriate diff found: dt=$dt\n";
136 if ($diff->{"bind_to"}) {
137 undef $diff->{"bind_to"}->{"diff"};
138 };
139 $diff->{"time_range"}=$dt;
140 $diff->{"bind_to"}=$cl;
142 $cl->{"diff"} = $diff_key;
143 $min_dt = $dt;
144 }
145 }
146 }
149 sub extract_commands_from_cline
150 # Разобрать командную строку $_[1] и возвратить хэш, содержащий
151 # номер первого появление команды в строке:
152 # команда => первая позиция
153 {
154 my $cline = $_[0];
155 my @lists = split /\;/, $cline;
158 my @commands = ();
159 for my $list (@lists) {
160 push @commands, split /\|/, $list;
161 }
163 my %commands;
164 my %files;
165 my $i=0;
166 for my $command (@commands) {
167 $command =~ /\s*(\S+)\s*(.*)/;
168 if ($1 && $1 eq "sudo" ) {
169 $commands{"$1"}=$i++;
170 $command =~ s/\s*sudo\s+//;
171 }
172 $command =~ /\s*(\S+)\s*(.*)/;
173 if ($1 && !defined $commands{"$1"}) {
174 $commands{"$1"}=$i++;
175 };
176 }
177 return %commands;
178 }
180 sub load_command_lines
181 {
182 my $lab_scripts_path = $_[0];
183 my $lab_scripts_mask = $_[1];
185 my $cline_re_base = qq'
186 (
187 (?:\\^?([0-9]*C?)) # exitcode
188 (?:_([0-9]+)_)? # uid
189 (?:_([0-9]+)_) # pid
190 (...?) # day
191 (.?.?) # lab
192 \\s # space separator
193 ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) # time
194 .\\[50D.\\[K # killing symbols
195 (.*?([\$\#]\\s?)) # prompt
196 (.*) # command line
197 )
198 ';
199 #my $cline_re = qr/$cline_re_base(?:$cline_re_base|$)/x;
200 #my $cline_re = qr/(?:$cline_re_base)*$cline_re_base$/x;
201 my $cline_re = qr/$cline_re_base/sx;
202 my $cline_re1 = qr/$cline_re_base\x0D/sx;
203 my $cline_re2 = qr/$cline_re_base$/sx;
205 my $vt = Term::VT102->new ( 'cols' => $Config{"terminal_width"},
206 'rows' => $Config{"terminal_height"});
207 my $cline_vt = Term::VT102->new ('cols' => $Config{"terminal_width"},
208 'rows' => $Config{"terminal_height"});
210 my $converter = Text::Iconv->new($Config{"encoding"}, "utf-8")
211 if ($Config{"encoding"} && $Config{"encoding"} !~ /^utf-8$/i);
213 print "Loading lm-scripts...\n" if $Config{"verbose"} =~ /y/;
215 my $file;
216 my $skip_info;
218 my $commandlines_loaded =0;
219 my $commandlines_processed =0;
221 my @lab_scripts = <$lab_scripts_path/$lab_scripts_mask>;
222 for $file (@lab_scripts){
224 # Пропускаем файл, если он не изменялся со времени нашего предудущего прохода
225 my $size = (stat($file))[7];
226 next if ($Script_Files{$file} && $Script_Files{$file}->{size} && $Script_Files{$file}->{size} >= $size);
229 my $local_session_id;
230 # Начальное значение идентификатора текущего сеанса определяем из имени скрипта
231 # Впоследствии оно может быть уточнено
232 $file =~ m@.*/([^/]*)\.script$@;
233 $local_session_id = $1;
235 #Если файл только что появился,
236 #пытаемся найти и загрузить информацию о соответствующей ему сессии
237 if (!$Script_Files{$file}) {
238 my $session_file = $file;
239 $session_file =~ s/\.script/.info/;
240 if (open(SESSION, $session_file)) {
241 local $/;
242 my $data = <SESSION>;
243 close(SESSION);
245 for my $session_data ($data =~ m@<session>(.*?)</session>@sg) {
246 my %session;
247 while ($session_data =~ m@<([^>]*?)>(.*?)</\1>@sg) {
248 $session{$1} = $2;
249 }
250 $local_session_id = $session{"local_session_id"} if $session{"local_session_id"};
251 $Sessions{$local_session_id}=\%session;
252 }
254 #Загруженную информацию сразу же отправляем в поток
255 print_session($Config{cache}, $local_session_id);
256 }
257 }
259 open (FILE, "$file");
260 binmode FILE;
262 # Переходим к тому месту, где мы окончили разбор
263 seek (FILE, $Script_Files{$file}->{tell}, 0) if $Script_Files{$file}->{tell};
264 $Script_Files{$file}->{size} = $size;
265 $Script_Files{$file}->{tell} = 0 unless $Script_Files{$file}->{tell};
267 $file =~ m@.*/(.*?)-.*@;
269 my $tty = $1;
270 my $first_pass = 1;
271 my %cl;
272 my $last_output_length=0;
273 while (<FILE>) {
274 $commandlines_processed++;
276 next if s/^Script started on.*?\n//s;
278 if (/[0-9][0-9]:[0-9][0-9]:[0-9][0-9].\[[0-9][0-9]D.\[K/ && m/$cline_re/) {
279 s/.*\x0d(?!\x0a)//;
280 m/$cline_re2/gs;
282 $commandlines_loaded++;
283 $last_output_length=0;
285 # Previous command
286 my %last_cl = %cl;
287 my $err = $2 || "";
289 $cl{"local_session_id"} = $local_session_id;
290 # Parse new command
291 $cl{"uid"} = $3;
292 $cl{"euid"} = $cl{"uid"}; # Если в команде обнаружится sudo, euid поменяем на 0
293 $cl{"pid"} = $4;
294 $cl{"day"} = $5;
295 $cl{"lab"} = $6;
296 $cl{"hour"} = $7;
297 $cl{"min"} = $8;
298 $cl{"sec"} = $9;
299 $cl{"fullprompt"} = $10;
300 $cl{"prompt"} = $11;
301 $cl{"raw_cline"} = $12;
303 {
304 use bytes;
305 $cl{"raw_start"} = tell (FILE) - length($1);
306 $cl{"raw_output_start"} = tell FILE;
307 }
308 $cl{"raw_file"} = $file;
310 $cl{"err"} = 0;
311 $cl{"output"} = "";
312 $cl{"tty"} = $tty;
314 $cline_vt->process($cl{"raw_cline"}."\n");
315 $cl{"cline"} = $cline_vt->row_plaintext (1);
316 $cl{"cline"} =~ s/\s*$//;
317 $cline_vt->reset();
319 my %commands = extract_commands_from_cline($cl{"cline"});
320 $cl{"euid"}=0 if defined $commands{"sudo"};
321 my @comms = sort { $commands{$a} cmp $commands{$b} } keys %commands;
322 $cl{"last_command"} = $comms[$#comms] || "";
324 if (
325 $Config{"suppress_editors"} =~ /^y/i
326 && grep ($_ eq $cl{"last_command"}, @{$Config{"editors"}})
327 || $Config{"suppress_pagers"} =~ /^y/i
328 && grep ($_ eq $cl{"last_command"}, @{$Config{"pagers"}})
329 || $Config{"suppress_terminal"}=~ /^y/i
330 && grep ($_ eq $cl{"last_command"}, @{$Config{"terminal"}})
331 ) {
332 $cl{"suppress_output"} = "1";
333 }
334 else {
335 $cl{"suppress_output"} = "0";
336 }
337 $skip_info = 0;
340 print " ",$cl{"last_command"};
342 # Processing previous command line
343 if ($first_pass) {
344 $first_pass = 0;
345 next;
346 }
348 # Error code
349 $last_cl{"raw_end"} = $cl{"raw_start"};
350 $last_cl{"err"}=$err;
351 $last_cl{"err"}=130 if $err eq "^C";
353 if (grep ($_ eq $last_cl{"last_command"}, @{$Config{"editors"}})) {
354 bind_diff(\%last_cl);
355 }
357 # Output
358 if (!$last_cl{"suppress_output"} || $last_cl{"err"}) {
359 for (my $i=0; $i<$Config{"terminal_height"}; $i++) {
360 my $line= $vt->row_plaintext($i);
361 next if !defined ($line) ; #|| $line =~ /^\s*$/;
362 $line =~ s/\s*$//;
363 $line .= "\n" unless $line =~ /^\s*$/;
364 $last_cl{"output"} .= $line;
365 }
366 }
367 else {
368 $last_cl{"output"}= "";
369 }
371 $vt->reset();
374 # Classifying the command line
377 # Save
378 if (!$Config{"lab"} || $cl{"lab"} eq $Config{"lab"}) {
379 # Changing encoding
380 for (keys %last_cl) {
381 next if /raw/;
382 $last_cl{$_} = $converter->convert($last_cl{$_})
383 if ($Config{"encoding"} &&
384 $Config{"encoding"} !~ /^utf-8$/i);
385 }
386 push @Command_Lines, \%last_cl;
388 # Сохранение позиции в файле, до которой выполнен
389 # успешный разбор
390 $Script_Files{$file}->{tell} = $last_cl{raw_end};
391 }
392 next;
393 }
394 $last_output_length+=length($_);
395 #if (!$cl{"suppress_output"} || $last_output_length < 5000) {
396 if ($last_output_length < 50000) {
397 $vt->process("$_"."\n")
398 }
399 else
400 {
401 if (!$skip_info) {
402 print "($cl{last_command})";
403 $skip_info = 1;
404 }
405 }
406 }
407 close(FILE);
409 }
410 if ($Config{"verbose"} =~ /y/) {
411 print "...finished." ;
412 print "Lines loaded: $commandlines_processed\n";
413 print "Command lines: $commandlines_loaded\n";
414 }
415 }
420 sub sort_command_lines
421 {
422 print "Sorting command lines...\n" if $Config{"verbose"} =~ /y/;
424 # Sort Command_Lines
425 # Write Command_Lines to Command_Lines_Index
427 my @index;
428 for (my $i=0;$i<=$#Command_Lines;$i++) {
429 $index[$i]=$i;
430 }
432 @Command_Lines_Index = sort {
433 $Command_Lines[$index[$a]]->{"day"} cmp $Command_Lines[$index[$b]]->{"day"} ||
434 $Command_Lines[$index[$a]]->{"hour"} <=> $Command_Lines[$index[$b]]->{"hour"} ||
435 $Command_Lines[$index[$a]]->{"min"} <=> $Command_Lines[$index[$b]]->{"min"} ||
436 $Command_Lines[$index[$a]]->{"sec"} <=> $Command_Lines[$index[$b]]->{"sec"}
437 } @index;
439 print "...finished\n" if $Config{"verbose"} =~ /y/;
441 }
443 sub printq
444 {
445 my $TO = shift;
446 my $text = join "", @_;
447 $text =~ s/&/&/g;
448 $text =~ s/</</g;
449 $text =~ s/>/>/g;
450 print $TO $text;
451 }
454 =cut
455 Вывести результат обработки журнала.
456 =cut
458 sub print_command_lines
459 {
460 my $output_filename=$_[0];
461 my $mode = ">";
462 $mode =">>" if $Config{mode} eq "daemon";
463 open(OUT, $mode, $output_filename)
464 or die "Can't open $output_filename for writing\n";
467 my $cl;
468 my $in_range=0;
469 for my $i (@Command_Lines_Index) {
470 $cl = $Command_Lines[$i];
472 if ($Config{"from"} && $cl->{"cline"} =~ /$Config{"signature"}\s*$Config{"from"}/) {
473 $in_range=1;
474 next;
475 }
476 if ($Config{"to"} && $cl->{"cline"} =~ /$Config{"signature"}\s*$Config{"to"}/) {
477 $in_range=0;
478 next;
479 }
480 next if ($Config{"from"} && $Config{"to"} && !$in_range)
481 ||
482 ($Config{"skip_empty"} =~ /^y/i && $cl->{"cline"} =~ /^\s*$/ )
483 ||
484 ($Config{"skip_wrong"} =~ /^y/i && $cl->{"err"} != 0)
485 ||
486 ($Config{"skip_interrupted"} =~ /^y/i && $cl->{"err"} == 130);
488 # Вырезаем из вывода только нужное количество строк
490 my $output="";
491 if ($Config{"head_lines"} || $Config{"tail_lines"}) {
492 # Partialy output
493 my @lines = split '\n', $cl->{"output"};
494 # head
495 my $mark=1;
496 for (my $i=0; $i<= $#lines && $i < $Config{"cache_head_lines"}; $i++) {
497 $output .= $lines[$i]."\n";
498 }
499 # tail
500 my $start=$#lines-$Config{"cache_tail_lines"}+1;
501 if ($start < 0) {
502 $start=0;
503 $mark=0;
504 }
505 if ($start < $Config{"cache_head_lines"}) {
506 $start=$Config{"cache_head_lines"};
507 $mark=0;
508 }
509 $output .= $Config{"skip_text"}."\n" if $mark;
510 for (my $i=$start; $i<= $#lines; $i++) {
511 $output .= $lines[$i]."\n";
512 }
513 }
514 else {
515 # Full output
516 $output .= $cl->{"output"};
517 }
519 # Совместимость с labmaker
521 # Переводим в секунды Эпохи
522 # В labmaker'е данные хранились в неудобной форме: hour, min, sec, day of year
523 # Информация о годе отсутствовала
524 # Её можно внести:
525 # Декабрь 2004 год; остальные -- 2005 год.
527 my $year = 2005;
528 #$year = 2004 if ( $cl->{day} > 330 );
529 $year = $Config{year} if $Config{year};
530 # timelocal( $sec, $min, $hour, $mday,$mon,$year);
531 $cl->{time} = timelocal_nocheck($cl->{sec},$cl->{min},$cl->{hour},$cl->{day},0,$year);
534 # Начинаем вывод команды
535 print OUT "<command>\n";
536 for my $element (qw(
537 local_session_id
538 time
539 raw_start
540 raw_output_start
541 raw_end
542 raw_file
543 tty
544 uid
545 err
546 last_command
547 )) {
548 next unless $cl->{"$element"};
549 print OUT "<$element>".$cl->{$element}."</$element>\n";
550 }
551 for my $element (qw(
552 prompt
553 cline
554 note
555 note_title
556 )) {
557 next unless $cl->{"$element"};
558 print OUT "<$element>";
559 printq(\*OUT,$cl->{"$element"});
560 print OUT "</$element>\n";
561 }
562 print OUT "<output>";
563 printq(\*OUT,$output);
564 print OUT "</output>\n";
565 if ($cl->{"diff"}) {
566 print OUT "<diff>";
567 printq(\*OUT,${$Diffs{$cl->{"diff"}}}{"text"});
568 print OUT "</diff>\n";
569 }
570 print OUT "</command>\n";
572 }
574 close(OUT);
575 }
577 sub print_session
578 {
579 my $output_filename = $_[0];
580 my $local_session_id = $_[1];
581 return if not defined($Sessions{$local_session_id});
583 open(OUT, ">>", $output_filename)
584 or die "Can't open $output_filename for writing\n";
585 print OUT "<session>\n";
586 my %session = %{$Sessions{$local_session_id}};
587 for my $key (keys %session) {
588 print OUT "<$key>".$session{$key}."</$key>\n"
589 }
590 print OUT "</session>\n";
591 close(OUT);
592 }
594 sub send_cache
595 {
596 # Если в кэше что-то накопилось,
597 # попытаемся отправить это на сервер
598 #
599 my $cache_was_sent=0;
601 if (open(CACHE, $Config{cache})) {
602 local $/;
603 my $cache = <CACHE>;
604 close(CACHE);
606 my $socket = IO::Socket::INET->new(
607 PeerAddr => $Config{backend_address},
608 PeerPort => $Config{backend_port},
609 proto => "tcp",
610 Type => SOCK_STREAM
611 );
613 if ($socket) {
614 print $socket $cache;
615 close($socket);
616 $cache_was_sent = 1;
617 }
618 }
619 return $cache_was_sent;
620 }
622 sub save_cache_stat
623 {
624 open (CACHE, ">$Config{cache_stat}");
625 for my $f (keys %Script_Files) {
626 print CACHE "$f\t",$Script_Files{$f}->{size},"\t",$Script_Files{$f}->{tell},"\n";
627 }
628 close(CACHE);
629 }
631 sub load_cache_stat
632 {
633 if (open (CACHE, "$Config{cache_stat}")) {
634 while(<CACHE>) {
635 chomp;
636 my ($f, $size, $tell) = split /\t/;
637 $Script_Files{$f}->{size} = $size;
638 $Script_Files{$f}->{tell} = $tell;
639 }
640 close(CACHE);
641 };
642 }
645 main();
647 sub process_was_killed
648 {
649 $Killed = 1;
650 }
652 sub main
653 {
655 $| = 1;
657 init_variables();
658 init_config();
661 if ($Config{"mode"} ne "daemon") {
663 =cut
664 В нормальном режиме работы нужно
665 считать скрипты, обработать их и записать
666 результат выполнения в результирующий файл.
667 После этого завершить работу.
668 =cut
669 for my $lab_log (split (/\s+/, $Config{"diffs"} || $Config{"input"})) {
670 load_diff_files($lab_log);
671 }
672 load_command_lines($Config{"input"}, $Config{"input_mask"});
673 sort_command_lines;
674 #process_command_lines;
675 print_command_lines($Config{"cache"});
676 }
677 else {
678 if (open(PIDFILE, $Config{agent_pidfile})) {
679 my $pid = <PIDFILE>;
680 close(PIDFILE);
681 if ($^O eq 'linux' && $pid &&(! -e "/proc/$pid" || !`grep $Config{"l3-agent"} /proc/$pid/cmdline && grep "uid:.*\b$<\b" /proc/$pid/status`)) {
682 print "Removing stale pidfile\n";
683 unlink $Config{agent_pidfile}
684 or die "Can't remove stale pidfile ". $Config{agent_pidfile}. " : $!";
685 }
686 elsif ($^O eq 'freebsd' && $pid && `ps axo uid,pid,command | grep '$<\\s*$pid\\s*$Config{"l3-agent"}' 2> /dev/null`) {
687 print "Removing stale pidfile\n";
688 unlink $Config{agent_pidfile}
689 or die "Can't remove stale pidfile ". $Config{agent_pidfile}. " : $!";
690 }
691 elsif ($^O eq 'linux' || $^O eq 'freebsd' ) {
692 print "l3-agent is already running: pid=$pid; pidfile=$Config{agent_pidfile}\n";
693 exit(0);
694 }
695 else {
696 print "Unknown operating system";
697 exit(0);
698 }
699 }
700 if ($Config{detach} =~ /^y/i) {
701 #$Config{verbose} = "no";
702 my $pid = fork;
703 exit if $pid;
704 die "Couldn't fork: $!" unless defined ($pid);
706 open(PIDFILE, ">", $Config{agent_pidfile})
707 or die "Can't open pidfile ". $Config{agent_pidfile}. " for wrting: $!";
708 print PIDFILE $$;
709 close(PIDFILE);
711 for my $handle (*STDIN, *STDOUT, *STDERR) {
712 open ($handle, "+<", "/dev/null")
713 or die "can't reopen $handle to /dev/null: $!"
714 }
716 POSIX::setsid()
717 or die "Can't start a new session: $!";
719 $0 = $Config{"l3-agent"};
721 $SIG{INT} = $SIG{TERM} = $SIG{HUP} = \&process_was_killed;
722 }
723 while (not $Killed) {
724 @Command_Lines = ();
725 @Command_Lines_Index = ();
726 for my $lab_log (split (/\s+/, $Config{"diffs"} || $Config{"input"})) {
727 load_diff_files($lab_log);
728 }
729 load_cache_stat();
730 load_command_lines($Config{"input"}, $Config{"input_mask"});
731 if (@Command_Lines) {
732 sort_command_lines;
733 process_command_lines;
734 print_command_lines($Config{"cache"});
735 }
736 save_cache_stat();
737 if (-e $Config{cache} && (stat($Config{cache}))[7]) {
738 send_cache() && unlink($Config{cache});
739 }
740 sleep($Config{"daemon_sleep_interval"} || 1);
741 }
743 unlink $Config{agent_pidfile};
744 }
746 }
748 sub init_variables
749 {
750 }