2 // PukiWiki - Yet another WikiWikiWeb clone.
5 // 2002-2016 PukiWiki Development Team
6 // 2001-2002 Originally written by yu-ji
7 // License: GPL v2 or (at your option) any later version
9 // File related functions
12 define('PKWK_MAXSHOW_ALLOWANCE', 10);
13 define('PKWK_MAXSHOW_CACHE', 'recent.dat');
16 define('PKWK_AUTOLINK_REGEX_CACHE', 'autolink.dat');
18 // Get source(wiki text) data of the page
19 // Returns FALSE if error occurerd
20 function get_source($page = NULL, $lock = TRUE, $join = FALSE)
22 //$result = NULL; // File is not found
23 $result = $join ? '' : array();
24 // Compat for "implode('', get_source($file))",
25 // -- this is slower than "get_source($file, TRUE, TRUE)"
26 // Compat for foreach(get_source($file) as $line) {} not to warns
28 $path = get_filename($page);
29 if (file_exists($path)) {
32 $fp = @fopen($path, 'r');
33 if ($fp === FALSE) return FALSE;
39 $size = filesize($path);
40 if ($size === FALSE) {
42 } else if ($size == 0) {
45 $result = fread($fp, $size);
46 if ($result !== FALSE) {
47 // Removing line-feeds
48 $result = str_replace("\r", '', $result);
53 $result = file($path);
54 if ($result !== FALSE) {
55 // Removing line-feeds
56 $result = str_replace("\r", '', $result);
69 // Get last-modified filetime of the page
70 function get_filetime($page)
72 return is_page($page) ? filemtime(get_filename($page)) - LOCALZONE : 0;
75 // Get physical file name of the page
76 function get_filename($page)
78 return DATA_DIR . encode($page) . '.txt';
81 // Put a data(wiki text) into a physical file(diff, backup, text)
82 function page_write($page, $postdata, $notimestamp = FALSE)
84 if (PKWK_READONLY) return; // Do nothing
86 $postdata = make_str_rules($postdata);
87 $text_without_author = remove_author_info($postdata);
88 $postdata = add_author_info($text_without_author);
89 $is_delete = empty($text_without_author);
91 // Do nothing when it has no changes
92 $oldpostdata = is_page($page) ? join('', get_source($page)) : '';
93 $oldtext_without_author = remove_author_info($oldpostdata);
94 if ($text_without_author === $oldtext_without_author) {
95 // Do nothing on updating with unchanged content
98 // Create and write diff
99 $diffdata = do_diff($oldpostdata, $postdata);
100 file_write(DIFF_DIR, $page, $diffdata);
103 make_backup($page, $is_delete, $postdata); // Is $postdata null?
106 file_write(DATA_DIR, $page, $postdata, $notimestamp, $is_delete);
111 // Modify original text with user-defined / system-defined rules
112 function make_str_rules($source)
114 global $str_rules, $fixed_heading_anchor;
116 $lines = explode("\n", $source);
117 $count = count($lines);
122 for ($i = 0; $i < $count; $i++) {
123 $line = & $lines[$i]; // Modify directly
125 // Ignore null string and preformatted texts
126 if ($line == '' || $line{0} == ' ' || $line{0} == "\t") continue;
130 if (! PKWKEXP_DISABLE_MULTILINE_PLUGIN_HACK &&
132 preg_match('/#[^{]*(\{\{+)\s*$/', $line, $matches)) {
133 // Multiline convert plugin start
135 $multiline = strlen($matches[1]); // Set specific number
138 if (! PKWKEXP_DISABLE_MULTILINE_PLUGIN_HACK &&
140 preg_match('/^\}{' . $multiline . '}\s*$/', $line)) {
141 // Multiline convert plugin end
146 if ($modify === FALSE) continue;
148 // Replace with $str_rules
149 foreach ($str_rules as $pattern => $replacement)
150 $line = preg_replace('/' . $pattern . '/', $replacement, $line);
152 // Adding fixed anchor into headings
153 if ($fixed_heading_anchor &&
154 preg_match('/^(\*{1,3}.*?)(?:\[#([A-Za-z][\w-]*)\]\s*)?$/', $line, $matches) &&
155 (! isset($matches[2]) || $matches[2] == '')) {
156 // Generate unique id
157 $anchor = generate_fixed_heading_anchor_id($matches[1]);
158 $line = rtrim($matches[1]) . ' [#' . $anchor . ']';
162 // Multiline part has no stopper
163 if (! PKWKEXP_DISABLE_MULTILINE_PLUGIN_HACK &&
164 $modify === FALSE && $multiline != 0)
165 $lines[] = str_repeat('}', $multiline);
167 return implode("\n", $lines);
170 function add_author_info($wikitext)
172 global $auth_user, $auth_user_fullname, $auth_type, $ldap_user_account;
173 $author = preg_replace('/"/', '', $auth_user);
174 $fullname = $auth_user_fullname;
175 if (!$fullname && $author) {
176 // Fullname is empty, use $author as its fullname
177 $fullname = preg_replace('/^[^:]*:/', '', $author);
179 $displayname = preg_replace('/"/', '', $fullname);
181 switch ($auth_type) {
182 case AUTH_TYPE_BASIC:
183 $user_prefix = AUTH_PROVIDER_USER_PREFIX_DEFAULT;
185 case AUTH_TYPE_EXTERNAL:
186 case AUTH_TYPE_EXTERNAL_REMOTE_USER:
187 case AUTH_TYPE_EXTERNAL_X_FORWARDED_USER:
188 $user_prefix = AUTH_PROVIDER_USER_PREFIX_EXTERNAL;
191 if ($ldap_user_account) {
192 $user_prefix = AUTH_PROVIDER_USER_PREFIX_LDAP;
194 $user_prefix = AUTH_PROVIDER_USER_PREFIX_DEFAULT;
198 $author_text = sprintf('#author("%s","%s","%s")',
199 get_date_atom(UTIME + LOCALZONE),
200 ($author ? $user_prefix . $author : ''),
201 $displayname) . "\n";
202 return $author_text . $wikitext;
205 function remove_author_info($wikitext)
207 return preg_replace('/^\s*#author\([^\n]*(\n|$)/m', '', $wikitext);
210 function get_date_atom($timestamp)
212 // Compatible with DATE_ATOM format
213 // return date(DATE_ATOM, $timestamp);
214 $zmin = abs(LOCALZONE / 60);
215 return date('Y-m-d\TH:i:s', $timestamp) . sprintf('%s%02d:%02d',
216 (LOCALZONE < 0 ? '-' : '+') , $zmin / 60, $zmin % 60);
220 function generate_fixed_heading_anchor_id($seed)
222 // A random alphabetic letter + 7 letters of random strings from md()
223 return chr(mt_rand(ord('a'), ord('z'))) .
224 substr(md5(uniqid(substr($seed, 0, 100), TRUE)),
228 // Read top N lines as an array
229 // (Use PHP file() function if you want to get ALL lines)
230 function file_head($file, $count = 1, $lock = TRUE, $buffer = 8192)
234 $fp = @fopen($file, 'r');
235 if ($fp === FALSE) return FALSE;
236 set_file_buffer($fp, 0);
237 if ($lock) flock($fp, LOCK_SH);
240 while (! feof($fp)) {
241 $line = fgets($fp, $buffer);
242 if ($line != FALSE) $array[] = $line;
243 if (++$index >= $count) break;
245 if ($lock) flock($fp, LOCK_UN);
246 if (! fclose($fp)) return FALSE;
252 function file_write($dir, $page, $str, $notimestamp = FALSE, $is_delete = FALSE)
254 global $_msg_invalidiwn, $notify, $notify_diff_only, $notify_subject;
255 global $whatsdeleted, $maxshow_deleted;
257 if (PKWK_READONLY) return; // Do nothing
258 if ($dir != DATA_DIR && $dir != DIFF_DIR) die('file_write(): Invalid directory');
260 $page = strip_bracket($page);
261 $file = $dir . encode($page) . '.txt';
262 $file_exists = file_exists($file);
267 if ($dir == DATA_DIR && $is_delete) {
269 if (! $file_exists) return; // Ignore null posting for DATA_DIR
271 // Update RecentDeleted (Add the $page)
272 add_recent($page, $whatsdeleted, '', $maxshow_deleted);
277 // Update RecentDeleted, and remove the page from RecentChanges
278 lastmodified_add($whatsdeleted, $page);
280 // Clear is_page() cache
281 is_page($page, TRUE);
285 } else if ($dir == DIFF_DIR && $str === " \n") {
286 return; // Ignore null posting for DIFF_DIR
290 // File replacement (Edit)
292 if (! is_pagename($page))
293 die_message(str_replace('$1', htmlsc($page),
294 str_replace('$2', 'WikiName', $_msg_invalidiwn)));
296 $str = rtrim(preg_replace('/' . "\r" . '/', '', $str)) . "\n";
297 $timestamp = ($file_exists && $notimestamp) ? filemtime($file) : FALSE;
299 $fp = fopen($file, 'a') or die('fopen() failed: ' .
300 htmlsc(basename($dir) . '/' . encode($page) . '.txt') .
302 'Maybe permission is not writable or filename is too long');
303 set_file_buffer($fp, 0);
311 if ($timestamp) pkwk_touch_file($file, $timestamp);
314 if ($dir == DATA_DIR) {
315 // Update RecentChanges (Add or renew the $page)
316 if ($timestamp === FALSE) lastmodified_add($page);
318 // Command execution per update
319 if (defined('PKWK_UPDATE_EXEC') && PKWK_UPDATE_EXEC)
320 system(PKWK_UPDATE_EXEC . ' > /dev/null &');
322 } else if ($dir == DIFF_DIR && $notify) {
323 if ($notify_diff_only) $str = preg_replace('/^[^-+].*\n/m', '', $str);
324 $footer['ACTION'] = 'Page update';
325 $footer['PAGE'] = & $page;
326 $footer['URI'] = get_script_uri() . '?' . pagename_urlencode($page);
327 $footer['USER_AGENT'] = TRUE;
328 $footer['REMOTE_ADDR'] = TRUE;
329 pkwk_mail_notify($notify_subject, $str, $footer) or
330 die('pkwk_mail_notify(): Failed');
333 is_page($page, TRUE); // Clear is_page() cache
336 // Update RecentDeleted
337 function add_recent($page, $recentpage, $subject = '', $limit = 0)
339 if (PKWK_READONLY || $limit == 0 || $page == '' || $recentpage == '' ||
340 check_non_list($page)) return;
343 $lines = $matches = array();
344 foreach (get_source($recentpage) as $line)
345 if (preg_match('/^-(.+) - (\[\[.+\]\])$/', $line, $matches))
346 $lines[$matches[2]] = $line;
348 $_page = '[[' . $page . ']]';
350 // Remove a report about the same page
351 if (isset($lines[$_page])) unset($lines[$_page]);
354 array_unshift($lines, '-' . format_date(UTIME) . ' - ' . $_page .
355 htmlsc($subject) . "\n");
357 // Get latest $limit reports
358 $lines = array_splice($lines, 0, $limit);
361 $fp = fopen(get_filename($recentpage), 'w') or
362 die_message('Cannot write page file ' .
363 htmlsc($recentpage) .
364 '<br />Maybe permission is not writable or filename is too long');
365 set_file_buffer($fp, 0);
368 fputs($fp, '#freeze' . "\n");
369 fputs($fp, '#norelated' . "\n"); // :)
370 fputs($fp, join('', $lines));
375 // Update PKWK_MAXSHOW_CACHE itself (Add or renew about the $page) (Light)
376 // Use without $autolink
377 function lastmodified_add($update = '', $remove = '')
379 global $maxshow, $whatsnew, $autolink;
381 // AutoLink implimentation needs everything, for now
383 put_lastmodified(); // Try to (re)create ALL
387 if (($update == '' || check_non_list($update)) && $remove == '')
390 $file = CACHE_DIR . PKWK_MAXSHOW_CACHE;
391 if (! file_exists($file)) {
392 put_lastmodified(); // Try to (re)create ALL
397 pkwk_touch_file($file);
398 $fp = fopen($file, 'r+') or
399 die_message('Cannot open ' . 'CACHE_DIR/' . PKWK_MAXSHOW_CACHE);
400 set_file_buffer($fp, 0);
403 // Read (keep the order of the lines)
404 $recent_pages = $matches = array();
405 foreach(file_head($file, $maxshow + PKWK_MAXSHOW_ALLOWANCE, FALSE) as $line)
406 if (preg_match('/^([0-9]+)\t(.+)/', $line, $matches))
407 $recent_pages[$matches[2]] = $matches[1];
409 // Remove if it exists inside
410 if (isset($recent_pages[$update])) unset($recent_pages[$update]);
411 if (isset($recent_pages[$remove])) unset($recent_pages[$remove]);
413 // Add to the top: like array_unshift()
415 $recent_pages = array($update => get_filetime($update)) + $recent_pages;
418 $abort = count($recent_pages) < $maxshow;
424 foreach ($recent_pages as $_page=>$time)
425 fputs($fp, $time . "\t" . $_page . "\n");
432 put_lastmodified(); // Try to (re)create ALL
439 // Update the page 'RecentChanges'
441 $recent_pages = array_splice($recent_pages, 0, $maxshow);
442 $file = get_filename($whatsnew);
445 pkwk_touch_file($file);
446 $fp = fopen($file, 'r+') or
447 die_message('Cannot open ' . htmlsc($whatsnew));
448 set_file_buffer($fp, 0);
454 foreach ($recent_pages as $_page=>$time)
455 fputs($fp, '-' . htmlsc(format_date($time)) .
456 ' - ' . '[[' . htmlsc($_page) . ']]' . "\n");
457 fputs($fp, '#norelated' . "\n"); // :)
463 // Re-create PKWK_MAXSHOW_CACHE (Heavy)
464 function put_lastmodified()
466 global $maxshow, $whatsnew, $autolink;
468 if (PKWK_READONLY) return; // Do nothing
470 // Get WHOLE page list
471 $pages = get_existpages();
473 // Check ALL filetime
474 $recent_pages = array();
475 foreach($pages as $page)
476 if ($page !== $whatsnew && ! check_non_list($page))
477 $recent_pages[$page] = get_filetime($page);
479 // Sort decending order of last-modification date
480 arsort($recent_pages, SORT_NUMERIC);
483 // BugTrack2/179: array_splice() will break integer keys in hashtable
484 $count = $maxshow + PKWK_MAXSHOW_ALLOWANCE;
486 foreach($recent_pages as $key=>$value) {
487 unset($recent_pages[$key]);
488 $_recent[$key] = $value;
489 if (--$count < 1) break;
491 $recent_pages = & $_recent;
493 // Re-create PKWK_MAXSHOW_CACHE
494 $file = CACHE_DIR . PKWK_MAXSHOW_CACHE;
495 pkwk_touch_file($file);
496 $fp = fopen($file, 'r+') or
497 die_message('Cannot open' . 'CACHE_DIR/' . PKWK_MAXSHOW_CACHE);
498 set_file_buffer($fp, 0);
502 foreach ($recent_pages as $page=>$time)
503 fputs($fp, $time . "\t" . $page . "\n");
507 // Create RecentChanges
508 $file = get_filename($whatsnew);
509 pkwk_touch_file($file);
510 $fp = fopen($file, 'r+') or
511 die_message('Cannot open ' . htmlsc($whatsnew));
512 set_file_buffer($fp, 0);
516 foreach (array_keys($recent_pages) as $page) {
517 $time = $recent_pages[$page];
518 $s_lastmod = htmlsc(format_date($time));
519 $s_page = htmlsc($page);
520 fputs($fp, '-' . $s_lastmod . ' - [[' . $s_page . ']]' . "\n");
522 fputs($fp, '#norelated' . "\n"); // :)
528 list($pattern, $pattern_a, $forceignorelist) =
529 get_autolink_pattern($pages);
531 $file = CACHE_DIR . PKWK_AUTOLINK_REGEX_CACHE;
532 pkwk_touch_file($file);
533 $fp = fopen($file, 'r+') or
534 die_message('Cannot open ' . 'CACHE_DIR/' . PKWK_AUTOLINK_REGEX_CACHE);
535 set_file_buffer($fp, 0);
539 fputs($fp, $pattern . "\n");
540 fputs($fp, $pattern_a . "\n");
541 fputs($fp, join("\t", $forceignorelist) . "\n");
547 // Get elapsed date of the page
548 function get_pg_passage($page, $sw = TRUE)
550 global $show_passage;
551 if (! $show_passage) return '';
553 $time = get_filetime($page);
554 $pg_passage = ($time != 0) ? get_passage($time) : '';
556 return $sw ? '<small>' . $pg_passage . '</small>' : ' ' . $pg_passage;
559 // Last-Modified header
560 function header_lastmod($page = NULL)
564 if ($lastmod && is_page($page)) {
566 header('Last-Modified: ' .
567 date('D, d M Y H:i:s', get_filetime($page)) . ' GMT');
571 // Get a list of encoded files (must specify a directory and a suffix)
572 function get_existfiles($dir = DATA_DIR, $ext = '.txt')
575 $pattern = '/^(?:[0-9A-F]{2})+' . preg_quote($ext, '/') . '$/';
577 $dp = @opendir($dir) or die_message($dir . ' is not found or not readable.');
578 while (($file = readdir($dp)) !== FALSE) {
579 if (preg_match($pattern, $file)) {
580 $aryret[] = $dir . $file;
588 // Get a page list of this wiki
589 function get_existpages($dir = DATA_DIR, $ext = '.txt')
592 $pattern = '/^((?:[0-9A-F]{2})+)' . preg_quote($ext, '/') . '$/';
594 $dp = @opendir($dir) or die_message($dir . ' is not found or not readable.');
596 while (($file = readdir($dp)) !== FALSE) {
597 if (preg_match($pattern, $file, $matches)) {
598 $aryret[$file] = decode($matches[1]);
606 // Get PageReading(pronounce-annotated) data in an array()
607 function get_readings()
609 global $pagereading_enable, $pagereading_kanji2kana_converter;
610 global $pagereading_kanji2kana_encoding, $pagereading_chasen_path;
611 global $pagereading_kakasi_path, $pagereading_config_page;
612 global $pagereading_config_dict;
614 $pages = get_existpages();
617 foreach ($pages as $page)
618 $readings[$page] = '';
620 $deletedPage = FALSE;
622 foreach (get_source($pagereading_config_page) as $line) {
624 if(preg_match('/^-\[\[([^]]+)\]\]\s+(.+)$/', $line, $matches)) {
625 if(isset($readings[$matches[1]])) {
626 // This page is not clear how to be pronounced
627 $readings[$matches[1]] = $matches[2];
629 // This page seems deleted
635 // If enabled ChaSen/KAKASI execution
636 if($pagereading_enable) {
638 // Check there's non-clear-pronouncing page
639 $unknownPage = FALSE;
640 foreach ($readings as $page => $reading) {
647 // Execute ChaSen/KAKASI, and get annotation
649 switch(strtolower($pagereading_kanji2kana_converter)) {
651 if(! file_exists($pagereading_chasen_path))
652 die_message('ChaSen not found: ' . $pagereading_chasen_path);
654 $tmpfname = tempnam(realpath(CACHE_DIR), 'PageReading');
655 $fp = fopen($tmpfname, 'w') or
656 die_message('Cannot write temporary file "' . $tmpfname . '".' . "\n");
657 foreach ($readings as $page => $reading) {
658 if($reading != '') continue;
659 fputs($fp, mb_convert_encoding($page . "\n",
660 $pagereading_kanji2kana_encoding, SOURCE_ENCODING));
664 $chasen = "$pagereading_chasen_path -F %y $tmpfname";
665 $fp = popen($chasen, 'r');
668 die_message('ChaSen execution failed: ' . $chasen);
670 foreach ($readings as $page => $reading) {
671 if($reading != '') continue;
674 $line = mb_convert_encoding($line, SOURCE_ENCODING,
675 $pagereading_kanji2kana_encoding);
677 $readings[$page] = $line;
682 die_message('Temporary file can not be removed: ' . $tmpfname);
685 case 'kakasi': /*FALLTHROUGH*/
687 if(! file_exists($pagereading_kakasi_path))
688 die_message('KAKASI not found: ' . $pagereading_kakasi_path);
690 $tmpfname = tempnam(realpath(CACHE_DIR), 'PageReading');
691 $fp = fopen($tmpfname, 'w') or
692 die_message('Cannot write temporary file "' . $tmpfname . '".' . "\n");
693 foreach ($readings as $page => $reading) {
694 if($reading != '') continue;
695 fputs($fp, mb_convert_encoding($page . "\n",
696 $pagereading_kanji2kana_encoding, SOURCE_ENCODING));
700 $kakasi = "$pagereading_kakasi_path -kK -HK -JK < $tmpfname";
701 $fp = popen($kakasi, 'r');
704 die_message('KAKASI execution failed: ' . $kakasi);
707 foreach ($readings as $page => $reading) {
708 if($reading != '') continue;
711 $line = mb_convert_encoding($line, SOURCE_ENCODING,
712 $pagereading_kanji2kana_encoding);
714 $readings[$page] = $line;
719 die_message('Temporary file can not be removed: ' . $tmpfname);
723 $patterns = $replacements = $matches = array();
724 foreach (get_source($pagereading_config_dict) as $line) {
726 if(preg_match('|^ /([^/]+)/,\s*(.+)$|', $line, $matches)) {
727 $patterns[] = $matches[1];
728 $replacements[] = $matches[2];
731 foreach ($readings as $page => $reading) {
732 if($reading != '') continue;
734 $readings[$page] = $page;
735 foreach ($patterns as $no => $pattern)
736 $readings[$page] = mb_convert_kana(mb_ereg_replace($pattern,
737 $replacements[$no], $readings[$page]), 'aKCV');
742 die_message('Unknown kanji-kana converter: ' . $pagereading_kanji2kana_converter . '.');
747 if($unknownPage || $deletedPage) {
749 asort($readings, SORT_STRING); // Sort by pronouncing(alphabetical/reading) order
751 foreach ($readings as $page => $reading)
752 $body .= '-[[' . $page . ']] ' . $reading . "\n";
754 page_write($pagereading_config_page, $body);
758 // Pages that are not prounouncing-clear, return pagenames of themselves
759 foreach ($pages as $page) {
760 if($readings[$page] == '')
761 $readings[$page] = $page;
767 // Get a list of related pages of the page
768 function links_get_related($page)
770 global $vars, $related;
771 static $links = array();
773 if (isset($links[$page])) return $links[$page];
775 // If possible, merge related pages generated by make_link()
776 $links[$page] = ($page === $vars['page']) ? $related : array();
778 // Get repated pages from DB
779 $links[$page] += links_get_related_db($vars['page']);
781 return $links[$page];
784 // _If needed_, re-create the file to change/correct ownership into PHP's
785 // NOTE: Not works for Windows
786 function pkwk_chown($filename, $preserve_time = TRUE)
788 static $php_uid; // PHP's UID
790 if (! isset($php_uid)) {
791 if (extension_loaded('posix')) {
792 $php_uid = posix_getuid(); // Unix
794 $php_uid = 0; // Windows
798 // Lock for pkwk_chown()
799 $lockfile = CACHE_DIR . 'pkwk_chown.lock';
800 $flock = fopen($lockfile, 'a') or
801 die('pkwk_chown(): fopen() failed for: CACHEDIR/' .
802 basename(htmlsc($lockfile)));
803 flock($flock, LOCK_EX) or die('pkwk_chown(): flock() failed for lock');
806 $stat = stat($filename) or
807 die('pkwk_chown(): stat() failed for: ' . basename(htmlsc($filename)));
808 if ($stat[4] === $php_uid) {
809 // NOTE: Windows always here
810 $result = TRUE; // Seems the same UID. Nothing to do
812 $tmp = $filename . '.' . getmypid() . '.tmp';
814 // Lock source $filename to avoid file corruption
815 // NOTE: Not 'r+'. Don't check write permission here
816 $ffile = fopen($filename, 'r') or
817 die('pkwk_chown(): fopen() failed for: ' .
818 basename(htmlsc($filename)));
820 // Try to chown by re-creating files
822 // * touch() before copy() is for 'rw-r--r--' instead of 'rwxr-xr-x' (with umask 022).
823 // * (PHP 4 < PHP 4.2.0) touch() with the third argument is not implemented and retuns NULL and Warn.
824 // * @unlink() before rename() is for Windows but here's for Unix only
825 flock($ffile, LOCK_EX) or die('pkwk_chown(): flock() failed');
826 $result = touch($tmp) && copy($filename, $tmp) &&
827 ($preserve_time ? (touch($tmp, $stat[9], $stat[8]) || touch($tmp, $stat[9])) : TRUE) &&
828 rename($tmp, $filename);
829 flock($ffile, LOCK_UN) or die('pkwk_chown(): flock() failed');
831 fclose($ffile) or die('pkwk_chown(): fclose() failed');
833 if ($result === FALSE) @unlink($tmp);
836 // Unlock for pkwk_chown()
837 flock($flock, LOCK_UN) or die('pkwk_chown(): flock() failed for lock');
838 fclose($flock) or die('pkwk_chown(): fclose() failed for lock');
843 // touch() with trying pkwk_chown()
844 function pkwk_touch_file($filename, $time = FALSE, $atime = FALSE)
846 // Is the owner incorrected and unable to correct?
847 if (! file_exists($filename) || pkwk_chown($filename)) {
848 if ($time === FALSE) {
849 $result = touch($filename);
850 } else if ($atime === FALSE) {
851 $result = touch($filename, $time);
853 $result = touch($filename, $time, $atime);
857 die('pkwk_touch_file(): Invalid UID and (not writable for the directory or not a flie): ' .
858 htmlsc(basename($filename)));