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