lilalo
view l3-agent @ 124:d702a44d5d6d
Command structure fields desription have moved to wiki
| author | Igor Chubin <igor@chub.in> |
|---|---|
| date | Fri Jul 04 11:09:56 2008 +0300 (2008-07-04) |
| parents | 42d9af3c851c |
| children | 822b36252d7f |
line source
1 #!/usr/bin/perl -w
3 #
4 # (c) Igor Chubin, igor@chub.in, 2004-2008
5 #
7 use strict;
8 use POSIX;
9 use Term::VT102;
10 use Text::Iconv;
11 use Time::Local 'timelocal_nocheck';
12 use IO::Socket;
14 use lib "/etc/lilalo";
15 use l3config;
17 our @Command_Lines;
18 our @Command_Lines_Index;
19 our %Diffs;
20 our %Sessions;
22 our %Script_Files; # Информация о позициях в скрипт-файлах,
23 # до которых уже выполнен разбор
24 # и информация о времени модификации файла
25 # $Script_Files{$file}->{size}
26 # $Script_Files{$file}->{tell}
28 our $Killed =0; # В режиме демона -- процесс получил сигнал о завершении
30 sub init_variables;
31 sub main;
33 sub load_diff_files;
34 sub bind_diff;
35 sub extract_commands_from_cline;
36 sub load_command_lines;
37 sub sort_command_lines;
38 sub print_command_lines;
39 sub printq;
41 sub save_cache_stat;
42 sub load_cache_stat;
43 sub print_session;
45 sub load_diff_files
46 {
47 my @pathes = @_;
49 for my $path (@pathes) {
50 my $template = "*.diff";
51 my @files = <$path/$template>;
52 my $i=0;
53 for my $file (@files) {
55 next if defined($Diffs{$file});
56 my %diff;
58 # Старый формат имени diff-файла
59 # DEPRECATED
60 if ($file=~m@/(D?[0-9][0-9]?[0-9]?)[^/]*?([0-9]*):([0-9]*):?([0-9]*)@) {
61 $diff{"day"}=$1 || "";
62 $diff{"hour"}=$2;
63 $diff{"min"}=$3;
64 $diff{"sec"}=$4 || 0;
66 $diff{"uid"} = 0 if $path =~ m@/root/@;
68 print "diff loaded: $diff{day} $diff{hour}:$diff{min}:$diff{sec}\n";
70 }
71 # Новый формат имени diff-файла
72 elsif ($file =~ m@.*/([^_]*)_([0-9]+)(.*)@) {
73 $diff{"local_session_id"} = $1;
74 $diff{"time"} = $2;
75 $diff{"filename"} = $3;
76 $diff{"filename"} =~ s@_@/@g;
77 $diff{"filename"} =~ s@//@_@g;
79 print "diff loaded: $diff{filename} (time=$diff{time},session=$diff{local_session_id})\n";
80 }
81 else {
82 next;
83 }
85 # Чтение и изменение кодировки содержимого diff-файла
86 local $/;
87 open (F, "$file")
88 or return "Can't open file $file ($_[0]) for reading";
89 my $text = <F>;
90 if ($Config{"encoding"} && $Config{"encoding"} !~ /^utf-8$/i) {
91 my $converter = Text::Iconv->new($Config{"encoding"}, "utf-8");
92 $text = $converter->convert($text);
93 }
94 close(F);
95 $diff{"text"}=$text;
97 $diff{"path"}=$path;
98 $diff{"bind_to"}="";
99 $diff{"time_range"}=-1;
100 $diff{"index"}=$i;
102 $Diffs{$file} = \%diff;
103 $i++;
104 }
105 }
106 }
109 sub bind_diff
110 {
111 print "Trying to bind diff...\n";
113 my $cl = shift;
114 my $hour = $cl->{"hour"};
115 my $min = $cl->{"min"};
116 my $sec = $cl->{"sec"};
118 my $min_dt = 10000;
120 if (defined($cl->{"diff"})) {
121 print STDERR "Command ".$cl->{time}." is already bound";
122 return;
123 }
125 # Загружаем новые diff-файлы
126 # Это нужно делать непосредственно перед привязкой, поскольку diff'ы могли образоваться только что
127 for my $lab_log (split (/\s+/, $Config{"diffs"} || $Config{"input"})) {
128 load_diff_files($lab_log);
129 }
131 my $diff_to_bind;
132 for my $diff_key (keys %Diffs) {
133 my $diff = $Diffs{$diff_key};
134 next if ($diff->{"local_session_id"}
135 && $cl->{"local_session_id"}
136 && ($cl->{"local_session_id"} ne $diff->{"local_session_id"}));
138 next if ($diff->{"day"} && $cl->{"day"} && ($cl->{"day"} ne $diff->{"day"}));
140 my $dt;
141 if (not $diff->{"time"}) {
142 print STDERR "diff time is 0";
143 print STDERR join(" ", keys(%$diff));
144 print STDERR $diff->{text};
145 }
146 if (not $cl->{"time"}) {
147 print STDERR "cl time is 0";
148 }
149 if ($diff->{"time"} && $cl->{"time"}) {
150 $dt = $diff->{"time"} - $cl->{"time"}
151 }
152 else {
153 $dt=($diff->{"hour"}-$hour)*3600 +($diff->{"min"}-$min)*60 + ($diff->{"sec"}-$sec);
154 }
155 if ($dt >=0 && $dt < $min_dt && !$diff->{"bind_to"}) {
156 $min_dt = $dt;
157 $diff_to_bind = $diff_key;
158 }
159 }
160 if ($diff_to_bind) {
161 print "Approppriate diff found: dt=$min_dt\n";
162 $Diffs{$diff_to_bind}->{"bind_to"}=$cl;
163 $cl->{"diff"} = $diff_to_bind;
164 }
165 else {
166 print STDERR "Diff not found\n";
167 print STDERR "cl{time}",$cl->{time},"\n";
168 }
169 }
172 sub extract_commands_from_cline
173 # Разобрать командную строку $_[1] и возвратить хэш, содержащий
174 # номер первого появление команды в строке:
175 # команда => первая позиция
176 {
177 my $cline = $_[0];
178 my @lists = split /\;/, $cline;
181 my @commands = ();
182 for my $list (@lists) {
183 push @commands, split /\|/, $list;
184 }
186 my %commands;
187 my %files;
188 my $i=0;
189 for my $command (@commands) {
190 $command =~ /\s*(\S+)\s*(.*)/;
191 if ($1 && $1 eq "sudo" ) {
192 $commands{"$1"}=$i++;
193 $command =~ s/\s*sudo\s+//;
194 }
195 $command =~ /\s*(\S+)\s*(.*)/;
196 if ($1 && !defined $commands{"$1"}) {
197 $commands{"$1"}=$i++;
198 };
199 }
200 return %commands;
201 }
203 sub load_command_lines
204 {
205 my $lab_scripts_path = $_[0];
206 my $lab_scripts_mask = $_[1];
208 my $cline_re_base = qq'
209 (
210 (?:\\^?([0-9]*C?)) # exitcode
211 (?:_([0-9]+)_)? # uid
212 (?:_([0-9]+)_) # pid
213 (...?) # day
214 (.?.?) # lab
215 \\s # space separator
216 ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) # time
217 .\\[50D.\\[K # killing symbols
218 (.*?([\$\#]\\s?)) # prompt
219 (.*) # command line
220 )
221 ';
222 my $cline_re = qr/$cline_re_base/sx;
223 my $cline_re2 = qr/$cline_re_base$/sx;
225 my $cline_re_v2_base = qq'
226 (
227 v2[\#] # version
228 ([0-9]+)[\#] # history line number
229 ([0-9]+)[\#] # exitcode
230 ([0-9]+)[\#] # uid
231 ([0-9]+)[\#] # pid
232 ([0-9]+)[\#] # time
233 (.*?)[\#] # pwd
234 .\\[1024D.\\[K # killing symbols
235 (.*?([\$\#]\\s?)) # prompt
236 (.*) # command line
237 )
238 ';
240 my $cline_re_v2 = qr/$cline_re_v2_base/sx;
241 my $cline_re2_v2 = qr/$cline_re_v2_base$/sx;
243 my $cline_re_v3_base = qq'
244 (
245 v3[\#] # version
246 .*
247 )
248 ';
249 my $cline_re_v3 = qr/$cline_re_v3_base/sx;
251 my $cline_re2_v3_base = qq'
252 (
253 v3[\#] # version
254 ([0-9]+)[\#] # history line number
255 ([0-9]+)[\#] # exitcode
256 ([0-9]+)[\#] # uid
257 ([0-9]+)[\#] # pid
258 ([0-9]+)[\#] # time
259 (.*?)[\#] # pwd
260 (.*?)[\#] # nonce
261 (.*?([\$\#]\\s?)) # prompt
262 (.*) # command line
263 )
264 ';
265 my $cline_re2_v3 = qr/$cline_re2_v3_base$/sx;
268 my %vt; # Хэш виртуальных терминалов. По одному на каждый сеанс
269 my $cline_vt = Term::VT102->new (
270 'cols' => $Config{"terminal_width"},
271 'rows' => $Config{"terminal_height"});
273 my $converter = Text::Iconv->new($Config{"encoding"}, "utf-8")
274 if ($Config{"encoding"} && $Config{"encoding"} !~ /^utf-8$/i);
276 print "Parsing lab scripts...\n" if $Config{"verbose"} =~ /y/;
278 my $file;
279 my $skip_info;
281 my $commandlines_loaded =0;
282 my $commandlines_processed =0;
284 my @lab_scripts = <$lab_scripts_path/$lab_scripts_mask>;
285 for $file (@lab_scripts){
287 # Пропускаем файл, если он не изменялся со времени нашего предудущего прохода
288 my $size = (stat($file))[7];
289 next if ($Script_Files{$file} && $Script_Files{$file}->{size} && $Script_Files{$file}->{size} >= $size);
292 my $local_session_id;
293 # Начальное значение идентификатора текущего сеанса определяем из имени скрипта
294 # Впоследствии оно может быть уточнено
295 $file =~ m@.*/([^/]*)\.script$@;
296 $local_session_id = $1;
298 if (not defined($vt{$local_session_id})) {
299 $vt{$local_session_id} = Term::VT102->new (
300 'cols' => $Config{"terminal_width"},
301 'rows' => $Config{"terminal_height"});
302 }
304 #Если файл только что появился,
305 #пытаемся найти и загрузить информацию о соответствующей ему сессии
306 if (!$Script_Files{$file}) {
307 my $session_file = $file;
308 $session_file =~ s/\.script/.info/;
309 if (open(SESSION, $session_file)) {
310 local $/;
311 my $data = <SESSION>;
312 close(SESSION);
314 for my $session_data ($data =~ m@<session>(.*?)</session>@sg) {
315 my %session;
316 while ($session_data =~ m@<([^>]*?)>(.*?)</\1>@sg) {
317 $session{$1} = $2;
318 }
319 $local_session_id = $session{"local_session_id"} if $session{"local_session_id"};
320 $Sessions{$local_session_id}=\%session;
321 }
323 #Загруженную информацию сразу же отправляем в поток
324 print_session($Config{cache}, $local_session_id);
325 }
326 else {
327 die "can't open session file";
328 }
329 }
331 open (FILE, "$file");
332 binmode FILE;
334 # Переходим к тому месту, где мы окончили разбор
335 seek (FILE, $Script_Files{$file}->{tell}, 0) if $Script_Files{$file}->{tell};
336 $Script_Files{$file}->{size} = $size;
337 $Script_Files{$file}->{tell} = 0 unless $Script_Files{$file}->{tell};
339 $file =~ m@.*/(.*?)-.*@;
341 print "\n+- processing file $file\n| "
342 if $Config{"verbose"} =~/y/;
344 my $tty = $1;
345 my %cl;
346 my $last_output_length=0;
347 while (<FILE>) {
348 $commandlines_processed++;
350 next if s/^Script started on.*?\n//s;
352 if (/[0-9][0-9]:[0-9][0-9]:[0-9][0-9].\[[0-9][0-9]D.\[K/ && m/$cline_re/) {
353 s/.*\x0d(?!\x0a)//;
354 m/$cline_re2/gs;
356 $commandlines_loaded++;
357 $last_output_length=0;
359 # Previous command
360 my %last_cl = %cl;
361 my $this_line = $1;
362 my $err = $2 || "";
364 $cl{"local_session_id"} = $local_session_id;
365 # Parse new command
366 $cl{"uid"} = $3;
367 #$cl{"euid"} = $cl{"uid"}; # Если в команде обнаружится sudo, euid поменяем на 0
368 $cl{"pid"} = $4;
369 $cl{"day"} = $5;
370 $cl{"lab"} = $6;
371 $cl{"hour"} = $7;
372 $cl{"min"} = $8;
373 $cl{"sec"} = $9;
374 #$cl{"fullprompt"} = $10;
375 $cl{"prompt"} = $11;
376 $cl{"raw_cline"} = $12;
378 {
379 use bytes;
380 $cl{"raw_start"} = tell (FILE) - length($this_line);
381 $cl{"raw_output_start"} = tell FILE;
382 }
383 $cl{"raw_file"} = $file;
385 $cl{"err"} = 0;
386 $cl{"output"} = "";
387 $cl{"tty"} = $tty;
389 $cline_vt->process($cl{"raw_cline"}."\n");
390 $cl{"cline"} = $cline_vt->row_plaintext (1);
391 $cl{"cline"} =~ s/\s*$//;
392 $cl{"cline"} =~ s/.*?[\#\$]\s*//;
393 $cline_vt->reset();
395 my %commands = extract_commands_from_cline($cl{"cline"});
396 #$cl{"euid"}=0 if defined $commands{"sudo"};
397 my @comms = sort { $commands{$a} cmp $commands{$b} } keys %commands;
398 $cl{"last_command"} = $comms[$#comms] || "";
400 if (
401 $Config{"suppress_editors"} =~ /^y/i
402 && grep ($_ eq $cl{"last_command"}, @{$Config{"editors"}})
403 || $Config{"suppress_pagers"} =~ /^y/i
404 && grep ($_ eq $cl{"last_command"}, @{$Config{"pagers"}})
405 || $Config{"suppress_terminal"}=~ /^y/i
406 && grep ($_ eq $cl{"last_command"}, @{$Config{"terminal"}})
407 ) {
408 $cl{"suppress_output"} = "1";
409 }
410 else {
411 $cl{"suppress_output"} = "0";
412 }
413 $skip_info = 0;
416 print " ",$cl{"last_command"};
418 if (grep ($_ eq $last_cl{"last_command"}, @{$Config{"editors"}})) {
419 bind_diff(\%last_cl);
420 }
422 # Error code
423 $last_cl{"raw_end"} = $cl{"raw_start"};
424 $last_cl{"err"}=$err;
425 $last_cl{"err"}=130 if $err eq "^C";
428 # Output
429 if (!$last_cl{"suppress_output"} || $last_cl{"err"}) {
430 for (my $i=0; $i<$Config{"terminal_height"}; $i++) {
431 my $line= $vt{$local_session_id}->row_plaintext($i);
432 next if !defined ($line) ; #|| $line =~ /^\s*$/;
433 $line =~ s/\s*$//;
434 $line .= "\n" unless $line =~ /^\s*$/;
435 $last_cl{"output"} .= $line;
436 }
437 }
438 else {
439 $last_cl{"output"}= "";
440 }
442 $vt{$local_session_id}->reset();
445 # Save
446 if (!$Config{"lab"} || $cl{"lab"} eq $Config{"lab"}) {
447 # Changing encoding
448 for (keys %last_cl) {
449 next if /raw/;
450 $last_cl{$_} = $converter->convert($last_cl{$_})
451 if ($Config{"encoding"} &&
452 $Config{"encoding"} !~ /^utf-8$/i);
453 }
454 push @Command_Lines, \%last_cl;
456 # Сохранение позиции в файле, до которой выполнен
457 # успешный разбор
458 $Script_Files{$file}->{tell} = $last_cl{raw_end};
459 }
460 next;
461 }
463 elsif (m/$cline_re_v2/ || m/$cline_re_v3/) {
464 # Разбираем командную строку версии 2
465 my $before=$_;
466 s/.*\x0d(?!\x0a)//;
468 my $re;
469 if (m/$cline_re_v2/) {
470 $re=$cline_re2_v2;
471 }
472 else {
473 s/.\[1K.\[10D//gs;
474 $re=$cline_re2_v3;
475 print STDERR "... $_ ...\n";
476 }
477 m/$re/gs;
479 $commandlines_loaded++;
480 $last_output_length=0;
482 # Previous command
483 my %last_cl = %cl;
485 $cl{"local_session_id"} = $local_session_id;
486 # Parse new command
487 my $this_line = $1;
488 $cl{"history"} = $2;
489 my $err = $3;
490 $cl{"uid"} = $4;
491 #$cl{"euid"} = $cl{"uid"}; # Если в команде обнаружится sudo, euid поменяем на 0
492 $cl{"pid"} = $5;
493 $cl{"time"} = $6;
494 $cl{"pwd"} = $7;
495 $cl{"nonce"} = $8;
496 #$cl{"fullprompt"} = $8;
497 $cl{"prompt"} = $10;
498 #$cl{"raw_cline"}= $10;
499 $cl{"raw_cline"}= $before;
501 {
502 use bytes;
503 $cl{"raw_start"} = tell (FILE) - length($before);
504 $cl{"raw_output_start"} = tell FILE;
505 }
506 $cl{"raw_file"} = $file;
508 $cl{"err"} = 0;
509 $cl{"output"} = "";
510 #$cl{"tty"} = $tty;
512 $cline_vt->process($cl{"raw_cline"}."\n");
513 $cl{"cline"} = $cline_vt->row_plaintext (1);
514 $cl{"cline"} =~ s/\s*$//;
515 $cl{"cline"} =~ s/.*?[\#\$]\s*//;
516 $cline_vt->reset();
517 print STDERR "cline=".$cl{"cline"}."<<\n";
519 my %commands = extract_commands_from_cline($cl{"cline"});
520 #$cl{"euid"} = 0 if defined $commands{"sudo"};
521 my @comms = sort { $commands{$a} cmp $commands{$b} } keys %commands;
522 $cl{"last_command"}
523 = $comms[$#comms] || "";
525 print STDERR "last_command=".$cl{"last_command"}."<<\n";
527 if (
528 $Config{"suppress_editors"} =~ /^y/i
529 && grep ($_ eq $cl{"last_command"}, @{$Config{"editors"}})
530 || $Config{"suppress_pagers"} =~ /^y/i
531 && grep ($_ eq $cl{"last_command"}, @{$Config{"pagers"}})
532 || $Config{"suppress_terminal"}=~ /^y/i
533 && grep ($_ eq $cl{"last_command"}, @{$Config{"terminal"}})
534 ) {
535 $cl{"suppress_output"} = "1";
536 }
537 else {
538 $cl{"suppress_output"} = "0";
539 }
540 $skip_info = 0;
542 if ($Config{verbose} =~ /y/i) {
543 print "\n| " if $commandlines_loaded % 5 == 1;
544 print " ",$cl{"last_command"};
545 }
547 if (defined($last_cl{time})
548 && grep ($_ eq $last_cl{"last_command"}, @{$Config{"editors"}})) {
549 bind_diff(\%last_cl);
550 }
552 # Error code
553 $last_cl{"err"}=$err;
554 $last_cl{"raw_end"} = $cl{"raw_start"};
556 # Output
557 if (!$last_cl{"suppress_output"} || $last_cl{"err"}) {
558 for (my $i=0; $i<$Config{"terminal_height"}; $i++) {
559 my $line= $vt{$local_session_id}->row_plaintext($i);
560 next if !defined ($line) ; #|| $line =~ /^\s*$/;
561 $line =~ s/\s*$//;
562 $line .= "\n" unless $line =~ /^\s*$/;
563 $last_cl{"output"} .= $line;
564 }
565 }
566 else {
567 $last_cl{"output"}= "";
568 }
570 $vt{$local_session_id}->reset();
573 # Changing encoding
574 for (keys %last_cl) {
575 next if /raw/;
576 if ($Config{"encoding"} &&
577 $Config{"encoding"} !~ /^utf-8$/i) {
578 $last_cl{$_} = $converter->convert($last_cl{$_})
579 }
580 }
581 if (defined($last_cl{time})) {
582 print STDERR "push id=".$last_cl{time}."\n";
583 push @Command_Lines, \%last_cl;
584 # Сохранение позиции в файле, до которой выполнен
585 # успешный разбор
586 $Script_Files{$file}->{tell} = $last_cl{raw_end};
587 }
588 next;
589 }
591 # Иначе, это строка вывода
593 $last_output_length+=length($_);
594 #if (!$cl{"suppress_output"} || $last_output_length < 5000) {
595 if ($last_output_length < 50000) {
596 $vt{$local_session_id}->process("$_"."\n")
597 }
598 else
599 {
600 if (!$skip_info && defined($cl{last_command})) {
601 print "($cl{last_command})";
602 $skip_info = 1;
603 }
604 }
605 }
606 close(FILE);
608 }
609 if ($Config{"verbose"} =~ /y/) {
610 print "\n`- finished.\n" ;
611 print "Lines loaded: $commandlines_processed\n";
612 print "Command lines: $commandlines_loaded\n";
613 }
614 }
619 sub sort_command_lines
620 {
621 print "Sorting command lines..." if $Config{"verbose"} =~ /y/;
623 # Sort Command_Lines
624 # Write Command_Lines to Command_Lines_Index
626 my @index;
627 for (my $i=0;$i<=$#Command_Lines;$i++) {
628 $index[$i]=$i;
629 }
631 @Command_Lines_Index = sort {
632 defined($Command_Lines[$index[$a]]->{"time"})
633 && defined($Command_Lines[$index[$b]]->{"time"})
634 ? $Command_Lines[$index[$a]]->{"time"} <=> $Command_Lines[$index[$b]]->{"time"}
635 : defined($Command_Lines[$index[$a]]->{"day"})
636 && defined($Command_Lines[$index[$b]]->{"day"})
637 && defined($Command_Lines[$index[$a]]->{"hour"})
638 && defined($Command_Lines[$index[$b]]->{"hour"})
639 && defined($Command_Lines[$index[$a]]->{"min"})
640 && defined($Command_Lines[$index[$b]]->{"min"})
641 && defined($Command_Lines[$index[$a]]->{"sec"})
642 && defined($Command_Lines[$index[$b]]->{"sec"})
643 ? $Command_Lines[$index[$a]]->{"day"} cmp $Command_Lines[$index[$b]]->{"day"}
644 || $Command_Lines[$index[$a]]->{"hour"} <=> $Command_Lines[$index[$b]]->{"hour"}
645 || $Command_Lines[$index[$a]]->{"min"} <=> $Command_Lines[$index[$b]]->{"min"}
646 || $Command_Lines[$index[$a]]->{"sec"} <=> $Command_Lines[$index[$b]]->{"sec"}
647 : 0
648 } @index;
650 print "finished\n" if $Config{"verbose"} =~ /y/;
652 }
654 sub printq
655 {
656 my $TO = shift;
657 my $text = join "", @_;
658 $text =~ s/&/&/g;
659 $text =~ s/</</g;
660 $text =~ s/>/>/g;
661 print $TO $text;
662 }
665 =cut
666 Вывести результат обработки журнала.
667 =cut
669 sub print_command_lines
670 {
671 my $output_filename=$_[0];
672 open(OUT, ">>", $output_filename)
673 or die "Can't open $output_filename for writing\n";
676 my $cl;
677 my $in_range=0;
678 for my $i (@Command_Lines_Index) {
679 $cl = $Command_Lines[$i];
681 if ($Config{"from"} && $cl->{"cline"} =~ /$Config{"signature"}\s*$Config{"from"}/) {
682 $in_range=1;
683 next;
684 }
685 if ($Config{"to"} && $cl->{"cline"} =~ /$Config{"signature"}\s*$Config{"to"}/) {
686 $in_range=0;
687 next;
688 }
689 next if ($Config{"from"} && $Config{"to"} && !$in_range)
690 ||
691 ($Config{"skip_empty"} =~ /^y/i && $cl->{"cline"} =~ /^\s*$/ )
692 ||
693 ($Config{"skip_wrong"} =~ /^y/i && $cl->{"err"} != 0)
694 ||
695 ($Config{"skip_interrupted"} =~ /^y/i && $cl->{"err"} == 130);
697 # Вырезаем из вывода только нужное количество строк
699 my $output="";
701 if (!grep ($_ eq $cl->{"last_command"}, @{$Config{"full_output_commands"}})
702 && ($Config{"head_lines"}
703 || $Config{"tail_lines"})) {
704 # Partialy output
705 my @lines = split '\n', $cl->{"output"};
706 # head
707 my $mark=1;
708 for (my $i=0; $i<= $#lines && $i < $Config{"cache_head_lines"}; $i++) {
709 $output .= $lines[$i]."\n";
710 }
711 # tail
712 my $start=$#lines-$Config{"cache_tail_lines"}+1;
713 if ($start < 0) {
714 $start=0;
715 $mark=0;
716 }
717 if ($start < $Config{"cache_head_lines"}) {
718 $start=$Config{"cache_head_lines"};
719 $mark=0;
720 }
721 $output .= $Config{"skip_text"}."\n" if $mark;
722 for ($i=$start; $i<= $#lines; $i++) {
723 $output .= $lines[$i]."\n";
724 }
725 }
726 else {
727 # Full output
728 $output .= $cl->{"output"};
729 }
731 # Совместимость с labmaker
733 # Переводим в секунды Эпохи
734 # В labmaker'е данные хранились в неудобной форме: hour, min, sec, day of year
735 # Информация о годе отсутствовала
736 # Её можно внести:
737 # Декабрь 2004 год; остальные -- 2005 год.
739 my $year = 2005;
740 #$year = 2004 if ( $cl->{day} > 330 );
741 $year = $Config{year} if $Config{year};
742 # timelocal( $sec, $min, $hour, $mday,$mon,$year);
743 $cl->{time} ||= timelocal_nocheck($cl->{sec},$cl->{min},$cl->{hour},$cl->{day},0,$year);
746 # Начинаем вывод команды
747 print OUT "<command>\n";
748 print OUT "<l3cd>$Config{l3cd}</l3cd>\n" if $Config{"l3cd"};
749 for my $element (qw(
750 local_session_id
751 history
752 uid
753 pid
754 time
755 pwd
756 raw_start
757 raw_output_start
758 raw_end
759 raw_file
760 tty
761 err
762 last_command
763 history
764 nonce
765 )) {
766 next unless defined($cl->{"$element"});
767 print OUT "<$element>".$cl->{$element}."</$element>\n";
768 }
769 for my $element (qw(
770 prompt
771 cline
772 )) {
773 next unless defined($cl->{"$element"});
774 print OUT "<$element>";
775 printq(\*OUT,$cl->{"$element"});
776 print OUT "</$element>\n";
777 }
778 #note
779 #note_title
780 print OUT "<output>";
781 printq(\*OUT,$output);
782 print OUT "</output>\n";
783 if ($cl->{"diff"}) {
784 print OUT "<diff>";
785 printq(\*OUT,${$Diffs{$cl->{"diff"}}}{"text"});
786 print OUT "</diff>\n";
787 }
788 print OUT "</command>\n";
790 }
792 close(OUT);
793 }
795 sub print_session
796 {
797 my $output_filename = $_[0];
798 my $local_session_id = $_[1];
799 return if not defined($Sessions{$local_session_id});
801 print "printing session info. session id = ".$local_session_id."\n"
802 if $Config{verbose} =~ /y/;
804 open(OUT, ">>", $output_filename)
805 or die "Can't open $output_filename for writing\n";
806 print OUT "<session>\n";
807 print OUT "<l3cd>$Config{l3cd}</l3cd>\n" if $Config{"l3cd"};
808 my %session = %{$Sessions{$local_session_id}};
809 for my $key (keys %session) {
810 print OUT "<$key>".$session{$key}."</$key>\n";
811 print " ".$key,"\n";
812 }
813 print OUT "</session>\n";
814 close(OUT);
815 }
817 sub send_cache
818 {
819 # Если в кэше что-то накопилось,
820 # попытаемся отправить это на сервер
821 #
822 my $cache_was_sent=0;
824 if (open(CACHE, $Config{cache})) {
825 local $/;
826 my $cache = <CACHE>;
827 close(CACHE);
829 my $socket = IO::Socket::INET->new(
830 PeerAddr => $Config{backend_address},
831 PeerPort => $Config{backend_port},
832 proto => "tcp",
833 Type => SOCK_STREAM
834 );
836 if ($socket) {
837 print $socket $cache;
838 close($socket);
839 $cache_was_sent = 1;
840 }
841 }
842 return $cache_was_sent;
843 }
845 sub save_cache_stat
846 {
847 open (CACHE, ">$Config{cache_stat}");
848 for my $f (keys %Script_Files) {
849 print CACHE "$f\t",$Script_Files{$f}->{size},"\t",$Script_Files{$f}->{tell},"\n";
850 }
851 close(CACHE);
852 }
854 sub load_cache_stat
855 {
856 if (open (CACHE, "$Config{cache_stat}")) {
857 while(<CACHE>) {
858 chomp;
859 my ($f, $size, $tell) = split /\t/;
860 $Script_Files{$f}->{size} = $size;
861 $Script_Files{$f}->{tell} = $tell;
862 }
863 close(CACHE);
864 };
865 }
868 main();
870 sub process_was_killed
871 {
872 $Killed = 1;
873 }
875 sub reload
876 {
877 init_config;
878 }
880 sub main
881 {
883 $| = 1;
885 init_variables();
886 init_config();
889 if ($Config{"mode"} ne "daemon") {
891 # В нормальном режиме работы нужно
892 # считать скрипты, обработать их и записать
893 # результат выполнения в результирующий файл.
894 # После этого завершить работу.
896 # Очистим кэш-файл, если он существовал
897 if (open (CACHE, ">", $Config{"cache"})) {
898 close(CACHE);
899 };
900 load_command_lines($Config{"input"}, $Config{"input_mask"});
901 sort_command_lines;
902 #process_command_lines;
903 print_command_lines($Config{"cache"});
904 }
905 else {
906 if (open(PIDFILE, $Config{agent_pidfile})) {
907 my $pid = <PIDFILE>;
908 close(PIDFILE);
909 if ($^O eq 'linux' && $pid &&(! -e "/proc/$pid" || !`grep $Config{"l3-agent"} /proc/$pid/cmdline && grep "uid:.*\b$<\b" /proc/$pid/status`)) {
910 print "Removing stale pidfile\n";
911 unlink $Config{agent_pidfile}
912 or die "Can't remove stale pidfile ". $Config{agent_pidfile}. " : $!";
913 }
914 elsif ($^O eq 'freebsd' && defined($pid) && $pid ne "" && not `ps axo uid,pid,command | grep '$< $pid $Config{"l3-agent"}' | grep -v grep 2> /dev/null`) {
915 print "Removing stale pidfile\n";
916 unlink $Config{agent_pidfile}
917 or die "Can't remove stale pidfile ". $Config{agent_pidfile}. " : $!";
918 }
919 elsif ($^O eq 'linux' || $^O eq 'freebsd' ) {
920 print "l3-agent is already running: pid=$pid; pidfile=$Config{agent_pidfile}\n";
921 exit(0);
922 }
923 else {
924 print "Unknown operating system";
925 exit(0);
926 }
927 }
928 if ($Config{detach} =~ /^y/i) {
929 #$Config{verbose} = "no";
930 my $pid = fork;
931 exit if $pid;
932 die "Couldn't fork: $!" unless defined ($pid);
934 open(PIDFILE, ">", $Config{agent_pidfile})
935 or die "Can't open pidfile ". $Config{agent_pidfile}. " for wrting: $!";
936 print PIDFILE $$;
937 close(PIDFILE);
939 for my $handle (*STDIN, *STDOUT, *STDERR) {
940 open ($handle, "+<", "/dev/null")
941 or die "can't reopen $handle to /dev/null: $!"
942 }
944 POSIX::setsid()
945 or die "Can't start a new session: $!";
947 $0 = $Config{"l3-agent"};
949 $SIG{INT} = $SIG{TERM} = \&process_was_killed;
950 $SIG{HUP} = \&reload;
952 }
953 while (not $Killed) {
954 @Command_Lines = ();
955 @Command_Lines_Index = ();
956 load_cache_stat();
957 load_command_lines($Config{"input"}, $Config{"input_mask"});
958 if (@Command_Lines) {
959 sort_command_lines;
960 #process_command_lines;
961 print_command_lines($Config{"cache"});
962 }
963 save_cache_stat();
964 if (-e $Config{cache} && (stat($Config{cache}))[7]) {
965 send_cache() && unlink($Config{cache});
966 }
967 sleep($Config{"daemon_sleep_interval"} || 1);
968 }
970 unlink $Config{agent_pidfile};
971 }
973 }
975 sub init_variables
976 {
977 }