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Commit | Line | Data |
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e143e9d8 DM |
1 | package PVE::Tools; |
2 | ||
3 | use strict; | |
4 | use POSIX; | |
5 | use IO::Socket::INET; | |
6 | use IO::Select; | |
7 | use File::Basename; | |
8 | use File::Path qw(make_path); | |
9 | use IO::File; | |
10 | use IPC::Open3; | |
11 | use Fcntl qw(:DEFAULT :flock); | |
12 | use base 'Exporter'; | |
13 | use URI::Escape; | |
14 | use Encode; | |
a413a515 | 15 | use Digest::SHA1; |
e38bcd35 | 16 | use Text::ParseWords; |
7514b23a | 17 | use String::ShellQuote; |
e143e9d8 DM |
18 | |
19 | our @EXPORT_OK = qw( | |
20 | lock_file | |
21 | run_command | |
22 | file_set_contents | |
23 | file_get_contents | |
24 | file_read_firstline | |
25 | split_list | |
26 | template_replace | |
27 | safe_print | |
28 | trim | |
29 | extract_param | |
30 | ); | |
31 | ||
32 | my $pvelogdir = "/var/log/pve"; | |
33 | my $pvetaskdir = "$pvelogdir/tasks"; | |
34 | ||
35 | mkdir $pvelogdir; | |
36 | mkdir $pvetaskdir; | |
37 | ||
0f0990f1 DM |
38 | sub run_with_timeout { |
39 | my ($timeout, $code, @param) = @_; | |
e143e9d8 | 40 | |
0f0990f1 | 41 | die "got timeout\n" if $timeout <= 0; |
e143e9d8 | 42 | |
0f0990f1 DM |
43 | my $prev_alarm; |
44 | ||
45 | my $sigcount = 0; | |
e143e9d8 DM |
46 | |
47 | my $res; | |
48 | ||
0f0990f1 | 49 | local $SIG{ALRM} = sub { $sigcount++; }; # catch alarm outside eval |
e143e9d8 DM |
50 | |
51 | eval { | |
0f0990f1 DM |
52 | local $SIG{ALRM} = sub { $sigcount++; die "got timeout\n"; }; |
53 | local $SIG{PIPE} = sub { $sigcount++; die "broken pipe\n" }; | |
54 | local $SIG{__DIE__}; # see SA bug 4631 | |
e143e9d8 | 55 | |
0f0990f1 | 56 | $prev_alarm = alarm($timeout); |
e143e9d8 | 57 | |
0f0990f1 DM |
58 | $res = &$code(@param); |
59 | ||
60 | alarm(0); # avoid race conditions | |
61 | }; | |
62 | ||
63 | my $err = $@; | |
64 | ||
65 | alarm($prev_alarm) if defined($prev_alarm); | |
66 | ||
67 | die "unknown error" if $sigcount && !$err; # seems to happen sometimes | |
68 | ||
69 | die $err if $err; | |
70 | ||
71 | return $res; | |
72 | } | |
e143e9d8 | 73 | |
0f0990f1 DM |
74 | # flock: we use one file handle per process, so lock file |
75 | # can be called multiple times and succeeds for the same process. | |
76 | ||
77 | my $lock_handles = {}; | |
78 | ||
79 | sub lock_file { | |
80 | my ($filename, $timeout, $code, @param) = @_; | |
81 | ||
82 | $timeout = 10 if !$timeout; | |
83 | ||
84 | my $lock_func = sub { | |
e143e9d8 DM |
85 | if (!$lock_handles->{$$}->{$filename}) { |
86 | $lock_handles->{$$}->{$filename} = new IO::File (">>$filename") || | |
0f0990f1 | 87 | die "can't open file - $!\n"; |
e143e9d8 DM |
88 | } |
89 | ||
90 | if (!flock ($lock_handles->{$$}->{$filename}, LOCK_EX|LOCK_NB)) { | |
91 | print STDERR "trying to aquire lock..."; | |
92 | if (!flock ($lock_handles->{$$}->{$filename}, LOCK_EX)) { | |
93 | print STDERR " failed\n"; | |
0f0990f1 | 94 | die "can't aquire lock - $!\n"; |
e143e9d8 DM |
95 | } |
96 | print STDERR " OK\n"; | |
97 | } | |
e143e9d8 DM |
98 | }; |
99 | ||
0f0990f1 | 100 | my $res; |
e143e9d8 | 101 | |
0f0990f1 DM |
102 | eval { run_with_timeout($timeout, $lock_func); }; |
103 | my $err = $@; | |
104 | if ($err) { | |
105 | $err = "can't lock file '$filename' - $err"; | |
106 | } else { | |
107 | eval { $res = &$code(@param) }; | |
108 | $err = $@; | |
109 | } | |
e143e9d8 DM |
110 | |
111 | if ($lock_handles->{$$}->{$filename}) { | |
112 | my $fh = $lock_handles->{$$}->{$filename}; | |
113 | $lock_handles->{$$}->{$filename} = undef; | |
114 | close ($fh); | |
115 | } | |
116 | ||
117 | if ($err) { | |
118 | $@ = $err; | |
119 | return undef; | |
120 | } | |
121 | ||
122 | $@ = undef; | |
123 | ||
124 | return $res; | |
125 | } | |
126 | ||
127 | sub file_set_contents { | |
128 | my ($filename, $data, $perm) = @_; | |
129 | ||
130 | $perm = 0644 if !defined($perm); | |
131 | ||
132 | my $tmpname = "$filename.tmp.$$"; | |
133 | ||
134 | eval { | |
135 | my $fh = IO::File->new($tmpname, O_WRONLY|O_CREAT, $perm); | |
136 | die "unable to open file '$tmpname' - $!\n" if !$fh; | |
137 | die "unable to write '$tmpname' - $!\n" unless print $fh $data; | |
138 | die "closing file '$tmpname' failed - $!\n" unless close $fh; | |
139 | }; | |
140 | my $err = $@; | |
141 | ||
142 | if ($err) { | |
143 | unlink $tmpname; | |
144 | die $err; | |
145 | } | |
146 | ||
147 | if (!rename($tmpname, $filename)) { | |
148 | my $msg = "close (rename) atomic file '$filename' failed: $!\n"; | |
149 | unlink $tmpname; | |
150 | die $msg; | |
151 | } | |
152 | } | |
153 | ||
154 | sub file_get_contents { | |
155 | my ($filename, $max) = @_; | |
156 | ||
157 | my $fh = IO::File->new($filename, "r") || | |
158 | die "can't open '$filename' - $!\n"; | |
159 | ||
160 | my $content = safe_read_from($fh, $max); | |
161 | ||
162 | close $fh; | |
163 | ||
164 | return $content; | |
165 | } | |
166 | ||
167 | sub file_read_firstline { | |
168 | my ($filename) = @_; | |
169 | ||
170 | my $fh = IO::File->new ($filename, "r"); | |
171 | return undef if !$fh; | |
172 | my $res = <$fh>; | |
173 | chomp $res; | |
174 | $fh->close; | |
175 | return $res; | |
176 | } | |
177 | ||
178 | sub safe_read_from { | |
179 | my ($fh, $max, $oneline) = @_; | |
180 | ||
181 | $max = 32768 if !$max; | |
182 | ||
183 | my $br = 0; | |
184 | my $input = ''; | |
185 | my $count; | |
186 | while ($count = sysread($fh, $input, 8192, $br)) { | |
187 | $br += $count; | |
188 | die "input too long - aborting\n" if $br > $max; | |
189 | if ($oneline && $input =~ m/^(.*)\n/) { | |
190 | $input = $1; | |
191 | last; | |
192 | } | |
193 | } | |
194 | die "unable to read input - $!\n" if !defined($count); | |
195 | ||
196 | return $input; | |
197 | } | |
198 | ||
199 | sub run_command { | |
200 | my ($cmd, %param) = @_; | |
201 | ||
202 | my $old_umask; | |
203 | ||
204 | $cmd = [ $cmd ] if !ref($cmd); | |
205 | ||
65e1d3fc | 206 | my $cmdstr = cmd2string($cmd); |
e143e9d8 DM |
207 | |
208 | my $errmsg; | |
209 | my $laststderr; | |
210 | my $timeout; | |
211 | my $oldtimeout; | |
212 | my $pid; | |
213 | ||
4630cb95 DM |
214 | my $outfunc; |
215 | my $errfunc; | |
216 | my $logfunc; | |
217 | my $input; | |
218 | my $output; | |
219 | ||
e143e9d8 | 220 | eval { |
e143e9d8 DM |
221 | |
222 | foreach my $p (keys %param) { | |
223 | if ($p eq 'timeout') { | |
224 | $timeout = $param{$p}; | |
225 | } elsif ($p eq 'umask') { | |
226 | umask($param{$p}); | |
227 | } elsif ($p eq 'errmsg') { | |
228 | $errmsg = $param{$p}; | |
e143e9d8 DM |
229 | } elsif ($p eq 'input') { |
230 | $input = $param{$p}; | |
1c50a24a DM |
231 | } elsif ($p eq 'output') { |
232 | $output = $param{$p}; | |
e143e9d8 DM |
233 | } elsif ($p eq 'outfunc') { |
234 | $outfunc = $param{$p}; | |
235 | } elsif ($p eq 'errfunc') { | |
236 | $errfunc = $param{$p}; | |
776fbfa8 DM |
237 | } elsif ($p eq 'logfunc') { |
238 | $logfunc = $param{$p}; | |
e143e9d8 DM |
239 | } else { |
240 | die "got unknown parameter '$p' for run_command\n"; | |
241 | } | |
242 | } | |
243 | ||
4630cb95 DM |
244 | if ($errmsg) { |
245 | my $origerrfunc = $errfunc; | |
246 | $errfunc = sub { | |
247 | if ($laststderr) { | |
248 | if ($origerrfunc) { | |
249 | &$origerrfunc("$laststderr\n"); | |
250 | } else { | |
251 | print STDERR "$laststderr\n" if $laststderr; | |
252 | } | |
253 | } | |
254 | $laststderr = shift; | |
255 | }; | |
256 | } | |
257 | ||
1c50a24a DM |
258 | my $reader = $output && $output =~ m/^>&/ ? $output : IO::File->new(); |
259 | my $writer = $input && $input =~ m/^<&/ ? $input : IO::File->new(); | |
260 | my $error = IO::File->new(); | |
261 | ||
e143e9d8 DM |
262 | # try to avoid locale related issues/warnings |
263 | my $lang = $param{lang} || 'C'; | |
264 | ||
265 | my $orig_pid = $$; | |
266 | ||
267 | eval { | |
329351e2 | 268 | local $ENV{LC_ALL} = $lang; |
e143e9d8 DM |
269 | |
270 | # suppress LVM warnings like: "File descriptor 3 left open"; | |
271 | local $ENV{LVM_SUPPRESS_FD_WARNINGS} = "1"; | |
272 | ||
273 | $pid = open3($writer, $reader, $error, @$cmd) || die $!; | |
f38995ab DM |
274 | |
275 | # if we pipe fron STDIN, open3 closes STDIN, so we we | |
276 | # a perl warning "Filehandle STDIN reopened as GENXYZ .. " | |
277 | # as soon as we open a new file. | |
278 | # to avoid that we open /dev/null | |
279 | if (!ref($writer) && !defined(fileno(STDIN))) { | |
280 | POSIX::close(0); | |
281 | open(STDIN, "</dev/null"); | |
282 | } | |
e143e9d8 DM |
283 | }; |
284 | ||
285 | my $err = $@; | |
286 | ||
287 | # catch exec errors | |
288 | if ($orig_pid != $$) { | |
289 | warn "ERROR: $err"; | |
290 | POSIX::_exit (1); | |
291 | kill ('KILL', $$); | |
292 | } | |
293 | ||
294 | die $err if $err; | |
295 | ||
296 | local $SIG{ALRM} = sub { die "got timeout\n"; } if $timeout; | |
297 | $oldtimeout = alarm($timeout) if $timeout; | |
298 | ||
f38995ab DM |
299 | if (ref($writer)) { |
300 | print $writer $input if defined $input; | |
301 | close $writer; | |
302 | } | |
e143e9d8 DM |
303 | |
304 | my $select = new IO::Select; | |
f38995ab | 305 | $select->add($reader) if ref($reader); |
e143e9d8 DM |
306 | $select->add($error); |
307 | ||
308 | my $outlog = ''; | |
309 | my $errlog = ''; | |
310 | ||
311 | my $starttime = time(); | |
312 | ||
313 | while ($select->count) { | |
314 | my @handles = $select->can_read(1); | |
315 | ||
316 | foreach my $h (@handles) { | |
317 | my $buf = ''; | |
318 | my $count = sysread ($h, $buf, 4096); | |
319 | if (!defined ($count)) { | |
320 | my $err = $!; | |
321 | kill (9, $pid); | |
322 | waitpid ($pid, 0); | |
323 | die $err; | |
324 | } | |
325 | $select->remove ($h) if !$count; | |
326 | if ($h eq $reader) { | |
776fbfa8 | 327 | if ($outfunc || $logfunc) { |
e143e9d8 DM |
328 | eval { |
329 | $outlog .= $buf; | |
330 | while ($outlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
331 | my $line = $1; | |
776fbfa8 DM |
332 | &$outfunc($line) if $outfunc; |
333 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
334 | } |
335 | }; | |
336 | my $err = $@; | |
337 | if ($err) { | |
338 | kill (9, $pid); | |
339 | waitpid ($pid, 0); | |
340 | die $err; | |
341 | } | |
342 | } else { | |
343 | print $buf; | |
344 | *STDOUT->flush(); | |
345 | } | |
346 | } elsif ($h eq $error) { | |
776fbfa8 | 347 | if ($errfunc || $logfunc) { |
e143e9d8 DM |
348 | eval { |
349 | $errlog .= $buf; | |
350 | while ($errlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) { | |
351 | my $line = $1; | |
776fbfa8 DM |
352 | &$errfunc($line) if $errfunc; |
353 | &$logfunc($line) if $logfunc; | |
e143e9d8 DM |
354 | } |
355 | }; | |
356 | my $err = $@; | |
357 | if ($err) { | |
358 | kill (9, $pid); | |
359 | waitpid ($pid, 0); | |
360 | die $err; | |
361 | } | |
362 | } else { | |
363 | print STDERR $buf; | |
364 | *STDERR->flush(); | |
365 | } | |
366 | } | |
367 | } | |
368 | } | |
369 | ||
370 | &$outfunc($outlog) if $outfunc && $outlog; | |
776fbfa8 DM |
371 | &$logfunc($outlog) if $logfunc && $outlog; |
372 | ||
e143e9d8 | 373 | &$errfunc($errlog) if $errfunc && $errlog; |
776fbfa8 | 374 | &$logfunc($errlog) if $logfunc && $errlog; |
e143e9d8 DM |
375 | |
376 | waitpid ($pid, 0); | |
377 | ||
378 | if ($? == -1) { | |
379 | die "failed to execute\n"; | |
380 | } elsif (my $sig = ($? & 127)) { | |
381 | die "got signal $sig\n"; | |
382 | } elsif (my $ec = ($? >> 8)) { | |
1c50a24a DM |
383 | if (!($ec == 24 && ($cmdstr =~ m|^(\S+/)?rsync\s|))) { |
384 | if ($errmsg && $laststderr) { | |
385 | my $lerr = $laststderr; | |
386 | $laststderr = undef; | |
387 | die "$lerr\n"; | |
388 | } | |
389 | die "exit code $ec\n"; | |
e143e9d8 | 390 | } |
e143e9d8 DM |
391 | } |
392 | ||
393 | alarm(0); | |
394 | }; | |
395 | ||
396 | my $err = $@; | |
397 | ||
398 | alarm(0); | |
399 | ||
4630cb95 DM |
400 | if ($errmsg && $laststderr) { |
401 | &$errfunc(undef); # flush laststderr | |
402 | } | |
e143e9d8 DM |
403 | |
404 | umask ($old_umask) if defined($old_umask); | |
405 | ||
406 | alarm($oldtimeout) if $oldtimeout; | |
407 | ||
408 | if ($err) { | |
409 | if ($pid && ($err eq "got timeout\n")) { | |
410 | kill (9, $pid); | |
411 | waitpid ($pid, 0); | |
412 | die "command '$cmdstr' failed: $err"; | |
413 | } | |
414 | ||
415 | if ($errmsg) { | |
416 | die "$errmsg: $err"; | |
417 | } else { | |
418 | die "command '$cmdstr' failed: $err"; | |
419 | } | |
420 | } | |
1c50a24a DM |
421 | |
422 | return undef; | |
e143e9d8 DM |
423 | } |
424 | ||
425 | sub split_list { | |
426 | my $listtxt = shift || ''; | |
427 | ||
d2b0374d DM |
428 | return split (/\0/, $listtxt) if $listtxt =~ m/\0/; |
429 | ||
430 | $listtxt =~ s/[,;]/ /g; | |
e143e9d8 DM |
431 | $listtxt =~ s/^\s+//; |
432 | ||
433 | my @data = split (/\s+/, $listtxt); | |
434 | ||
435 | return @data; | |
436 | } | |
437 | ||
438 | sub trim { | |
439 | my $txt = shift; | |
440 | ||
441 | return $txt if !defined($txt); | |
442 | ||
443 | $txt =~ s/^\s+//; | |
444 | $txt =~ s/\s+$//; | |
445 | ||
446 | return $txt; | |
447 | } | |
448 | ||
449 | # simple uri templates like "/vms/{vmid}" | |
450 | sub template_replace { | |
451 | my ($tmpl, $data) = @_; | |
452 | ||
453 | my $res = ''; | |
454 | while ($tmpl =~ m/([^{]+)?({([^}]+)})?/g) { | |
455 | $res .= $1 if $1; | |
456 | $res .= ($data->{$3} || '-') if $2; | |
457 | } | |
458 | return $res; | |
459 | } | |
460 | ||
461 | sub safe_print { | |
462 | my ($filename, $fh, $data) = @_; | |
463 | ||
464 | return if !$data; | |
465 | ||
466 | my $res = print $fh $data; | |
467 | ||
468 | die "write to '$filename' failed\n" if !$res; | |
469 | } | |
470 | ||
471 | sub debmirrors { | |
472 | ||
473 | return { | |
474 | 'at' => 'ftp.at.debian.org', | |
475 | 'au' => 'ftp.au.debian.org', | |
476 | 'be' => 'ftp.be.debian.org', | |
477 | 'bg' => 'ftp.bg.debian.org', | |
478 | 'br' => 'ftp.br.debian.org', | |
479 | 'ca' => 'ftp.ca.debian.org', | |
480 | 'ch' => 'ftp.ch.debian.org', | |
481 | 'cl' => 'ftp.cl.debian.org', | |
482 | 'cz' => 'ftp.cz.debian.org', | |
483 | 'de' => 'ftp.de.debian.org', | |
484 | 'dk' => 'ftp.dk.debian.org', | |
485 | 'ee' => 'ftp.ee.debian.org', | |
486 | 'es' => 'ftp.es.debian.org', | |
487 | 'fi' => 'ftp.fi.debian.org', | |
488 | 'fr' => 'ftp.fr.debian.org', | |
489 | 'gr' => 'ftp.gr.debian.org', | |
490 | 'hk' => 'ftp.hk.debian.org', | |
491 | 'hr' => 'ftp.hr.debian.org', | |
492 | 'hu' => 'ftp.hu.debian.org', | |
493 | 'ie' => 'ftp.ie.debian.org', | |
494 | 'is' => 'ftp.is.debian.org', | |
495 | 'it' => 'ftp.it.debian.org', | |
496 | 'jp' => 'ftp.jp.debian.org', | |
497 | 'kr' => 'ftp.kr.debian.org', | |
498 | 'mx' => 'ftp.mx.debian.org', | |
499 | 'nl' => 'ftp.nl.debian.org', | |
500 | 'no' => 'ftp.no.debian.org', | |
501 | 'nz' => 'ftp.nz.debian.org', | |
502 | 'pl' => 'ftp.pl.debian.org', | |
503 | 'pt' => 'ftp.pt.debian.org', | |
504 | 'ro' => 'ftp.ro.debian.org', | |
505 | 'ru' => 'ftp.ru.debian.org', | |
506 | 'se' => 'ftp.se.debian.org', | |
507 | 'si' => 'ftp.si.debian.org', | |
508 | 'sk' => 'ftp.sk.debian.org', | |
509 | 'tr' => 'ftp.tr.debian.org', | |
510 | 'tw' => 'ftp.tw.debian.org', | |
511 | 'gb' => 'ftp.uk.debian.org', | |
512 | 'us' => 'ftp.us.debian.org', | |
513 | }; | |
514 | } | |
515 | ||
516 | sub kvmkeymaps { | |
517 | return { | |
518 | 'dk' => ['Danish', 'da', 'qwerty/dk-latin1.kmap.gz', 'dk', 'nodeadkeys'], | |
519 | 'de' => ['German', 'de', 'qwertz/de-latin1-nodeadkeys.kmap.gz', 'de', 'nodeadkeys' ], | |
520 | 'de-ch' => ['Swiss-German', 'de-ch', 'qwertz/sg-latin1.kmap.gz', 'ch', 'de_nodeadkeys' ], | |
521 | 'en-gb' => ['United Kingdom', 'en-gb', 'qwerty/uk.kmap.gz' , 'gb', 'intl' ], | |
522 | 'en-us' => ['U.S. English', 'en-us', 'qwerty/us-latin1.kmap.gz', 'us', 'intl' ], | |
523 | 'es' => ['Spanish', 'es', 'qwerty/es.kmap.gz', 'es', 'nodeadkeys'], | |
524 | #'et' => [], # Ethopia or Estonia ?? | |
525 | 'fi' => ['Finnish', 'fi', 'qwerty/fi-latin1.kmap.gz', 'fi', 'nodeadkeys'], | |
526 | #'fo' => ['Faroe Islands', 'fo', ???, 'fo', 'nodeadkeys'], | |
527 | 'fr' => ['French', 'fr', 'azerty/fr-latin1.kmap.gz', 'fr', 'nodeadkeys'], | |
528 | 'fr-be' => ['Belgium-French', 'fr-be', 'azerty/be2-latin1.kmap.gz', 'be', 'nodeadkeys'], | |
529 | 'fr-ca' => ['Canada-French', 'fr-ca', 'qwerty/cf.kmap.gz', 'ca', 'fr-legacy'], | |
530 | 'fr-ch' => ['Swiss-French', 'fr-ch', 'qwertz/fr_CH-latin1.kmap.gz', 'ch', 'fr_nodeadkeys'], | |
531 | #'hr' => ['Croatia', 'hr', 'qwertz/croat.kmap.gz', 'hr', ??], # latin2? | |
532 | 'hu' => ['Hungarian', 'hu', 'qwertz/hu.kmap.gz', 'hu', undef], | |
533 | 'is' => ['Icelandic', 'is', 'qwerty/is-latin1.kmap.gz', 'is', 'nodeadkeys'], | |
534 | 'it' => ['Italian', 'it', 'qwerty/it2.kmap.gz', 'it', 'nodeadkeys'], | |
535 | 'jp' => ['Japanese', 'ja', 'qwerty/jp106.kmap.gz', 'jp', undef], | |
536 | 'lt' => ['Lithuanian', 'lt', 'qwerty/lt.kmap.gz', 'lt', 'std'], | |
537 | #'lv' => ['Latvian', 'lv', 'qwerty/lv-latin4.kmap.gz', 'lv', ??], # latin4 or latin7? | |
538 | 'mk' => ['Macedonian', 'mk', 'qwerty/mk.kmap.gz', 'mk', 'nodeadkeys'], | |
539 | 'nl' => ['Dutch', 'nl', 'qwerty/nl.kmap.gz', 'nl', undef], | |
540 | #'nl-be' => ['Belgium-Dutch', 'nl-be', ?, ?, ?], | |
541 | 'no' => ['Norwegian', 'no', 'qwerty/no-latin1.kmap.gz', 'no', 'nodeadkeys'], | |
542 | 'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef], | |
543 | 'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'], | |
544 | 'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'], | |
545 | #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # dont know? | |
546 | 'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef], | |
547 | #'sv' => [], Swedish ? | |
548 | #'th' => [], | |
549 | #'tr' => [], | |
550 | }; | |
551 | } | |
552 | ||
553 | sub extract_param { | |
554 | my ($param, $key) = @_; | |
555 | ||
556 | my $res = $param->{$key}; | |
557 | delete $param->{$key}; | |
558 | ||
559 | return $res; | |
560 | } | |
561 | ||
562 | sub next_vnc_port { | |
563 | ||
564 | for (my $p = 5900; $p < 6000; $p++) { | |
565 | ||
566 | my $sock = IO::Socket::INET->new (Listen => 5, | |
567 | LocalAddr => 'localhost', | |
568 | LocalPort => $p, | |
569 | ReuseAddr => 1, | |
570 | Proto => 0); | |
571 | ||
572 | if ($sock) { | |
573 | close ($sock); | |
574 | return $p; | |
575 | } | |
576 | } | |
577 | ||
578 | die "unable to find free vnc port"; | |
579 | }; | |
580 | ||
581 | # NOTE: NFS syscall can't be interrupted, so alarm does | |
582 | # not work to provide timeouts. | |
583 | # from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation" | |
584 | # So the spawn external 'df' process instead of using | |
585 | # Filesys::Df (which uses statfs syscall) | |
586 | sub df { | |
587 | my ($path, $timeout) = @_; | |
588 | ||
589 | my $cmd = [ 'df', '-P', '-B', '1', $path]; | |
590 | ||
591 | my $res = { | |
592 | total => 0, | |
593 | used => 0, | |
594 | avail => 0, | |
595 | }; | |
596 | ||
597 | my $parser = sub { | |
598 | my $line = shift; | |
599 | if (my ($fsid, $total, $used, $avail) = $line =~ | |
600 | m/^(\S+.*)\s+(\d+)\s+(\d+)\s+(\d+)\s+\d+%\s.*$/) { | |
601 | $res = { | |
602 | total => $total, | |
603 | used => $used, | |
604 | avail => $avail, | |
605 | }; | |
606 | } | |
607 | }; | |
608 | eval { run_command($cmd, timeout => $timeout, outfunc => $parser); }; | |
609 | warn $@ if $@; | |
610 | ||
611 | return $res; | |
612 | } | |
613 | ||
614 | # UPID helper | |
615 | # We use this to uniquely identify a process. | |
616 | # An 'Unique Process ID' has the following format: | |
617 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" | |
618 | ||
619 | sub upid_encode { | |
620 | my $d = shift; | |
621 | ||
622 | return sprintf("UPID:%s:%08X:%08X:%08X:%s:%s:%s:", $d->{node}, $d->{pid}, | |
623 | $d->{pstart}, $d->{starttime}, $d->{type}, $d->{id}, | |
624 | $d->{user}); | |
625 | } | |
626 | ||
627 | sub upid_decode { | |
628 | my ($upid, $noerr) = @_; | |
629 | ||
630 | my $res; | |
631 | my $filename; | |
632 | ||
633 | # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user" | |
634 | if ($upid =~ m/^UPID:([A-Za-z][[:alnum:]\-]*[[:alnum:]]+):([0-9A-Fa-f]{8}):([0-9A-Fa-f]{8}):([0-9A-Fa-f]{8}):([^:\s]+):([^:\s]*):([^:\s]+):$/) { | |
635 | $res->{node} = $1; | |
636 | $res->{pid} = hex($2); | |
637 | $res->{pstart} = hex($3); | |
638 | $res->{starttime} = hex($4); | |
639 | $res->{type} = $5; | |
640 | $res->{id} = $6; | |
641 | $res->{user} = $7; | |
642 | ||
643 | my $subdir = substr($4, 7, 8); | |
644 | $filename = "$pvetaskdir/$subdir/$upid"; | |
645 | ||
646 | } else { | |
647 | return undef if $noerr; | |
648 | die "unable to parse worker upid '$upid'\n"; | |
649 | } | |
650 | ||
651 | return wantarray ? ($res, $filename) : $res; | |
652 | } | |
653 | ||
654 | sub upid_open { | |
655 | my ($upid) = @_; | |
656 | ||
657 | my ($task, $filename) = upid_decode($upid); | |
658 | ||
659 | my $dirname = dirname($filename); | |
660 | make_path($dirname); | |
661 | ||
662 | my $wwwid = getpwnam('www-data') || | |
663 | die "getpwnam failed"; | |
664 | ||
665 | my $perm = 0640; | |
666 | ||
667 | my $outfh = IO::File->new ($filename, O_WRONLY|O_CREAT|O_EXCL, $perm) || | |
668 | die "unable to create output file '$filename' - $!\n"; | |
2b8e0f12 | 669 | chown $wwwid, -1, $outfh; |
e143e9d8 DM |
670 | |
671 | return $outfh; | |
672 | }; | |
673 | ||
674 | sub upid_read_status { | |
675 | my ($upid) = @_; | |
676 | ||
677 | my ($task, $filename) = upid_decode($upid); | |
678 | my $fh = IO::File->new($filename, "r"); | |
679 | return "unable to open file - $!" if !$fh; | |
680 | my $maxlen = 1024; | |
681 | sysseek($fh, -$maxlen, 2); | |
682 | my $readbuf = ''; | |
683 | my $br = sysread($fh, $readbuf, $maxlen); | |
684 | close($fh); | |
685 | if ($br) { | |
686 | return "unable to extract last line" | |
687 | if $readbuf !~ m/\n?(.+)$/; | |
688 | my $line = $1; | |
689 | if ($line =~ m/^TASK OK$/) { | |
690 | return 'OK'; | |
691 | } elsif ($line =~ m/^TASK ERROR: (.+)$/) { | |
692 | return $1; | |
693 | } else { | |
694 | return "unexpected status"; | |
695 | } | |
696 | } | |
697 | return "unable to read tail (got $br bytes)"; | |
698 | } | |
699 | ||
700 | # useful functions to store comments in config files | |
701 | sub encode_text { | |
702 | my ($text) = @_; | |
703 | ||
704 | # all control and hi-bit characters, and ':' | |
705 | my $unsafe = "^\x20-\x39\x3b-\x7e"; | |
706 | return uri_escape(Encode::encode("utf8", $text), $unsafe); | |
707 | } | |
708 | ||
709 | sub decode_text { | |
710 | my ($data) = @_; | |
711 | ||
712 | return Encode::decode("utf8", uri_unescape($data)); | |
713 | } | |
714 | ||
a413a515 DM |
715 | sub random_ether_addr { |
716 | ||
717 | my $rand = Digest::SHA1::sha1_hex(rand(), time()); | |
718 | ||
719 | my $mac = ''; | |
720 | for (my $i = 0; $i < 6; $i++) { | |
721 | my $ss = hex(substr($rand, $i*2, 2)); | |
722 | if (!$i) { | |
723 | $ss &= 0xfe; # clear multicast | |
724 | $ss |= 2; # set local id | |
725 | } | |
726 | $ss = sprintf("%02X", $ss); | |
727 | ||
728 | if (!$i) { | |
729 | $mac .= "$ss"; | |
730 | } else { | |
731 | $mac .= ":$ss"; | |
732 | } | |
733 | } | |
734 | ||
735 | return $mac; | |
736 | } | |
e143e9d8 | 737 | |
762e3223 DM |
738 | sub shellquote { |
739 | my $str = shift; | |
740 | ||
7514b23a | 741 | return String::ShellQuote::shell_quote($str); |
762e3223 DM |
742 | } |
743 | ||
65e1d3fc DM |
744 | sub cmd2string { |
745 | my ($cmd) = @_; | |
746 | ||
747 | die "no arguments" if !$cmd; | |
748 | ||
749 | return $cmd if !ref($cmd); | |
750 | ||
751 | my @qa = (); | |
752 | foreach my $arg (@$cmd) { push @qa, shellquote($arg); } | |
753 | ||
754 | return join (' ', @qa); | |
755 | } | |
756 | ||
e38bcd35 | 757 | # split an shell argument string into an array, |
f9125663 DM |
758 | sub split_args { |
759 | my ($str) = @_; | |
760 | ||
e38bcd35 | 761 | return $str ? [ Text::ParseWords::shellwords($str) ] : []; |
f9125663 DM |
762 | } |
763 | ||
804b1041 DM |
764 | sub dump_logfile { |
765 | my ($filename, $start, $limit) = @_; | |
766 | ||
767 | my $lines = []; | |
768 | my $count = 0; | |
769 | ||
770 | my $fh = IO::File->new($filename, "r"); | |
771 | if (!$fh) { | |
772 | $count++; | |
773 | push @$lines, { n => $count, t => "unable to open file - $!"}; | |
774 | return ($count, $lines); | |
775 | } | |
776 | ||
777 | $start = 0 if !$start; | |
778 | $limit = 50 if !$limit; | |
779 | ||
780 | my $line; | |
781 | while (defined($line = <$fh>)) { | |
782 | next if $count++ < $start; | |
783 | next if $limit <= 0; | |
784 | chomp $line; | |
785 | push @$lines, { n => $count, t => $line}; | |
786 | $limit--; | |
787 | } | |
788 | ||
789 | close($fh); | |
790 | ||
791 | # HACK: ExtJS store.guaranteeRange() does not like empty array | |
792 | # so we add a line | |
793 | if (!$count) { | |
794 | $count++; | |
795 | push @$lines, { n => $count, t => "no content"}; | |
796 | } | |
797 | ||
798 | return ($count, $lines); | |
799 | } | |
800 | ||
e143e9d8 | 801 | 1; |