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file.php
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file.php
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<?php
// PukiWiki - Yet another WikiWikiWeb clone.
// $Id: file.php,v 1.95 2011/01/25 15:01:01 henoheno Exp $
// Copyright (C)
// 2002-2007 PukiWiki Developers Team
// 2001-2002 Originally written by yu-ji
// License: GPL v2 or (at your option) any later version
//
// File related functions
// RecentChanges
define('PKWK_MAXSHOW_ALLOWANCE', 10);
define('PKWK_MAXSHOW_CACHE', 'recent.dat');
// XHTML entities
define('PKWK_ENTITIES_REGEX_CACHE', 'entities.dat');
// AutoLink
define('PKWK_AUTOLINK_REGEX_CACHE', 'autolink.dat');
// AutoAlias
define('PKWK_AUTOALIAS_REGEX_CACHE', 'autoalias.dat');
// Get source(wiki text) data of the page
// Returns FALSE if error occurerd
function get_source($page = NULL, $lock = TRUE, $join = FALSE)
{
//$result = NULL; // File is not found
$result = $join ? '' : array();
// Compat for "implode('', get_source($file))",
// -- this is slower than "get_source($file, TRUE, TRUE)"
// Compat for foreach(get_source($file) as $line) {} not to warns
$path = get_filename($page);
if (file_exists($path)) {
if ($lock || $join) {
$fp = @fopen($path, 'r');
if ($fp === FALSE) return FALSE;
}
if ($lock) flock($fp, LOCK_SH);
if ($join) {
$size = filesize($path);
if ($size === FALSE) {
$result = FALSE;
} else if ($size == 0) {
$result = '';
} else {
$result = fread($fp, $size); // Returns a value
}
} else {
$result = file($path); // Returns an array
}
if ($lock) flock($fp, LOCK_UN);
if ($lock || $join) {
@fclose($fp);
}
if ($result !== FALSE) {
// Removing line-feeds
$result = str_replace("\r", '', $result);
}
}
return $result;
}
// Get last-modified filetime of the page
function get_filetime($page)
{
return is_page($page) ? filemtime(get_filename($page)) - LOCALZONE : 0;
}
// Get physical file name of the page
function get_filename($page)
{
return DATA_DIR . encode($page) . '.txt';
}
// Put a data(wiki text) into a physical file(diff, backup, text)
function page_write($page, $postdata, $notimestamp = FALSE)
{
global $autoalias, $aliaspage;
if (PKWK_READONLY) return; // Do nothing
$postdata = make_str_rules($postdata);
// Create and write diff
$oldpostdata = is_page($page) ? get_source($page, TRUE, TRUE) : '';
$diffdata = do_diff($oldpostdata, $postdata);
file_write(DIFF_DIR, $page, $diffdata);
unset($oldpostdata, $diffdata);
// Create backup
make_backup($page, $postdata == ''); // Is $postdata null?
// Create wiki text
file_write(DATA_DIR, $page, $postdata, $notimestamp);
links_update($page);
// Update autoalias.dat (AutoAliasName)
if ($autoalias && $page === $aliaspage) {
$aliases = get_autoaliases();
if (empty($aliases)) {
// Remove
@unlink(CACHE_DIR . PKWK_AUTOALIAS_REGEX_CACHE);
} else {
// Create or Update
autolink_pattern_write(CACHE_DIR . PKWK_AUTOALIAS_REGEX_CACHE,
get_autolink_pattern(array_keys($aliases), $autoalias));
}
}
}
// Modify original text with user-defined / system-defined rules
function make_str_rules($source)
{
global $str_rules, $fixed_heading_anchor;
$lines = explode("\n", $source);
$count = count($lines);
$modify = TRUE;
$multiline = 0;
$matches = array();
for ($i = 0; $i < $count; $i++) {
$line = & $lines[$i]; // Modify directly
// Ignore null string and preformatted texts
if ($line == '' || $line{0} == ' ' || $line{0} == "\t") continue;
// Modify this line?
if ($modify) {
if (! PKWKEXP_DISABLE_MULTILINE_PLUGIN_HACK &&
$multiline == 0 &&
preg_match('/#[^{]*(\{\{+)\s*$/', $line, $matches)) {
// Multiline convert plugin start
$modify = FALSE;
$multiline = strlen($matches[1]); // Set specific number
}
} else {
if (! PKWKEXP_DISABLE_MULTILINE_PLUGIN_HACK &&
$multiline != 0 &&
preg_match('/^\}{' . $multiline . '}\s*$/', $line)) {
// Multiline convert plugin end
$modify = TRUE;
$multiline = 0;
}
}
if ($modify === FALSE) continue;
// Replace with $str_rules
foreach ($str_rules as $pattern => $replacement)
$line = preg_replace('/' . $pattern . '/', $replacement, $line);
// Adding fixed anchor into headings
if ($fixed_heading_anchor &&
preg_match('/^(\*{1,3}.*?)(?:\[#([A-Za-z][\w-]*)\]\s*)?$/', $line, $matches) &&
(! isset($matches[2]) || $matches[2] == '')) {
// Generate unique id
$anchor = generate_fixed_heading_anchor_id($matches[1]);
$line = rtrim($matches[1]) . ' [#' . $anchor . ']';
}
}
// Multiline part has no stopper
if (! PKWKEXP_DISABLE_MULTILINE_PLUGIN_HACK &&
$modify === FALSE && $multiline != 0)
$lines[] = str_repeat('}', $multiline);
return implode("\n", $lines);
}
// Generate ID
function generate_fixed_heading_anchor_id($seed)
{
// A random alphabetic letter + 7 letters of random strings from md5()
return chr(mt_rand(ord('a'), ord('z'))) .
substr(md5(uniqid(substr($seed, 0, 100), TRUE)),
mt_rand(0, 24), 7);
}
// Read top N lines as an array
// (Use PHP file() function if you want to get ALL lines)
function file_head($file, $count = 1, $lock = TRUE, $buffer = NULL)
{
$array = array();
$fp = @fopen($file, 'r');
if ($fp === FALSE) return FALSE;
set_file_buffer($fp, 0);
if ($lock) flock($fp, LOCK_SH);
rewind($fp);
$index = 0;
if ($buffer === NULL) {
while (! feof($fp)) {
$line = fgets($fp);
if ($line != FALSE) $array[] = $line;
if (++$index >= $count) break;
}
} else {
$buffer = max(16, intval($buffer));
while (! feof($fp)) {
$line = fgets($fp, $buffer);
if ($line != FALSE) $array[] = $line;
if (++$index >= $count) break;
}
}
if ($lock) flock($fp, LOCK_UN);
if (! fclose($fp)) return FALSE;
return $array;
}
// Output to a file
function file_write($dir, $page, $str, $notimestamp = FALSE)
{
global $_msg_invalidiwn, $notify, $notify_diff_only, $notify_subject;
global $whatsdeleted, $maxshow_deleted;
if (PKWK_READONLY) return; // Do nothing
if ($dir != DATA_DIR && $dir != DIFF_DIR) die('file_write(): Invalid directory');
$page = strip_bracket($page);
$file = $dir . encode($page) . '.txt';
$file_exists = file_exists($file);
// ----
// Delete?
if ($dir == DATA_DIR && $str === '') {
// Page deletion
if (! $file_exists) return; // Ignore null posting for DATA_DIR
// Update RecentDeleted (Add the $page)
add_recent($page, $whatsdeleted, '', $maxshow_deleted);
// Remove the page
unlink($file);
// Update RecentDeleted, and remove the page from RecentChanges
lastmodified_add($whatsdeleted, $page);
// Clear is_page() cache
is_page($page, TRUE);
return;
} else if ($dir == DIFF_DIR && $str === " \n") {
return; // Ignore null posting for DIFF_DIR
}
// ----
// File replacement (Edit)
if (! is_pagename($page))
die_message(str_replace('$1', htmlsc($page),
str_replace('$2', 'WikiName', $_msg_invalidiwn)));
$str = rtrim(preg_replace('/' . "\r" . '/', '', $str)) . "\n";
$timestamp = ($file_exists && $notimestamp) ? filemtime($file) : FALSE;
$fp = fopen($file, 'a') or die('fopen() failed: ' .
htmlsc(basename($dir) . '/' . encode($page) . '.txt') .
'<br />' . "\n" .
'Maybe permission is not writable or filename is too long');
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
ftruncate($fp, 0);
rewind($fp);
fputs($fp, $str);
flock($fp, LOCK_UN);
fclose($fp);
if ($timestamp) pkwk_touch_file($file, $timestamp);
// Optional actions
if ($dir == DATA_DIR) {
// Update RecentChanges (Add or renew the $page)
if ($timestamp === FALSE) lastmodified_add($page);
// Command execution per update
if (defined('PKWK_UPDATE_EXEC') && PKWK_UPDATE_EXEC)
system(PKWK_UPDATE_EXEC . ' > /dev/null &');
} else if ($dir == DIFF_DIR && $notify) {
if ($notify_diff_only) $str = preg_replace('/^[^-+].*\n/m', '', $str);
$summary = array();
$summary['ACTION'] = 'Page update';
$summary['PAGE'] = & $page;
$summary['URI'] = get_script_uri() . '?' . rawurlencode($page);
$summary['USER_AGENT'] = TRUE;
$summary['REMOTE_ADDR'] = TRUE;
pkwk_mail_notify($notify_subject, $str, $summary) or
die('pkwk_mail_notify(): Failed');
}
is_page($page, TRUE); // Clear is_page() cache
}
// Update RecentDeleted
function add_recent($page, $recentpage, $subject = '', $limit = 0)
{
if (PKWK_READONLY || $limit == 0 || $page == '' || $recentpage == '' ||
check_non_list($page)) return;
// Load
$lines = $matches = array();
foreach (get_source($recentpage) as $line) {
if (preg_match('/^-(.+) - (\[\[.+\]\])$/', $line, $matches)) {
$lines[$matches[2]] = $line;
}
}
$_page = '[[' . $page . ']]';
// Remove a report about the same page
if (isset($lines[$_page])) unset($lines[$_page]);
// Add
array_unshift($lines, '-' . format_date(UTIME) . ' - ' . $_page .
htmlsc($subject) . "\n");
// Get latest $limit reports
$lines = array_splice($lines, 0, $limit);
// Update
$fp = fopen(get_filename($recentpage), 'w') or
die_message('Cannot write page file ' .
htmlsc($recentpage) .
'<br />Maybe permission is not writable or filename is too long');
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
rewind($fp);
fputs($fp, '#norelated' . "\n"); // :)
fputs($fp, join('', $lines));
flock($fp, LOCK_UN);
fclose($fp);
}
// Update PKWK_MAXSHOW_CACHE itself (Add or renew about the $page) (Light)
// Use without $autolink
function lastmodified_add($update = '', $remove = '')
{
global $maxshow, $whatsnew, $autolink;
// AutoLink implimentation needs everything, for now
if ($autolink) {
put_lastmodified(); // Try to (re)create ALL
return;
}
if (($update == '' || check_non_list($update)) && $remove == '')
return; // No need
$file = CACHE_DIR . PKWK_MAXSHOW_CACHE;
if (! file_exists($file)) {
put_lastmodified(); // Try to (re)create ALL
return;
}
// Open
pkwk_touch_file($file);
$fp = fopen($file, 'r+') or
die_message('Cannot open ' . 'CACHE_DIR/' . PKWK_MAXSHOW_CACHE);
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
// Read (keep the order of the lines)
$recent_pages = $matches = array();
foreach(file_head($file, $maxshow + PKWK_MAXSHOW_ALLOWANCE, FALSE) as $line) {
if (preg_match('/^([0-9]+)\t(.+)/', $line, $matches)) {
$recent_pages[$matches[2]] = $matches[1];
}
}
// Remove if it exists inside
if (isset($recent_pages[$update])) unset($recent_pages[$update]);
if (isset($recent_pages[$remove])) unset($recent_pages[$remove]);
// Add to the top: like array_unshift()
if ($update != '')
$recent_pages = array($update => get_filetime($update)) + $recent_pages;
// Check
$abort = count($recent_pages) < $maxshow;
if (! $abort) {
// Write
ftruncate($fp, 0);
rewind($fp);
foreach ($recent_pages as $_page=>$time)
fputs($fp, $time . "\t" . $_page . "\n");
}
flock($fp, LOCK_UN);
fclose($fp);
if ($abort) {
put_lastmodified(); // Try to (re)create ALL
return;
}
// ----
// Update the page 'RecentChanges'
$recent_pages = array_splice($recent_pages, 0, $maxshow);
$file = get_filename($whatsnew);
// Open
pkwk_touch_file($file);
$fp = fopen($file, 'r+') or
die_message('Cannot open ' . htmlsc($whatsnew));
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
// Recreate
ftruncate($fp, 0);
rewind($fp);
foreach ($recent_pages as $_page=>$time)
fputs($fp, '-' . htmlsc(format_date($time)) .
' - ' . '[[' . htmlsc($_page) . ']]' . "\n");
fputs($fp, '#norelated' . "\n"); // :)
flock($fp, LOCK_UN);
fclose($fp);
}
// Re-create PKWK_MAXSHOW_CACHE (Heavy)
function put_lastmodified()
{
global $maxshow, $whatsnew, $autolink;
if (PKWK_READONLY) return; // Do nothing
// Get WHOLE page list
$pages = get_existpages();
// Check ALL filetime
$recent_pages = array();
foreach($pages as $page)
if ($page !== $whatsnew && ! check_non_list($page))
$recent_pages[$page] = get_filetime($page);
// Sort decending order of last-modification date
arsort($recent_pages, SORT_NUMERIC);
// Cut unused lines
// BugTrack2/179: array_splice() will break integer keys in hashtable
$count = $maxshow + PKWK_MAXSHOW_ALLOWANCE;
$_recent = array();
foreach($recent_pages as $key=>$value) {
unset($recent_pages[$key]);
$_recent[$key] = $value;
if (--$count < 1) break;
}
$recent_pages = & $_recent;
// Re-create PKWK_MAXSHOW_CACHE
$file = CACHE_DIR . PKWK_MAXSHOW_CACHE;
pkwk_touch_file($file);
$fp = fopen($file, 'r+') or
die_message('Cannot open' . 'CACHE_DIR/' . PKWK_MAXSHOW_CACHE);
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
ftruncate($fp, 0);
rewind($fp);
foreach ($recent_pages as $page=>$time)
fputs($fp, $time . "\t" . $page . "\n");
flock($fp, LOCK_UN);
fclose($fp);
// Create RecentChanges
$file = get_filename($whatsnew);
pkwk_touch_file($file);
$fp = fopen($file, 'r+') or
die_message('Cannot open ' . htmlsc($whatsnew));
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
ftruncate($fp, 0);
rewind($fp);
foreach (array_keys($recent_pages) as $page) {
$time = $recent_pages[$page];
$s_lastmod = htmlsc(format_date($time));
$s_page = htmlsc($page);
fputs($fp, '-' . $s_lastmod . ' - [[' . $s_page . ']]' . "\n");
}
fputs($fp, '#norelated' . "\n"); // :)
flock($fp, LOCK_UN);
fclose($fp);
// For AutoLink
if ($autolink){
autolink_pattern_write(CACHE_DIR . PKWK_AUTOLINK_REGEX_CACHE,
get_autolink_pattern($pages, $autolink));
}
}
// update autolink data
function autolink_pattern_write($filename, $autolink_pattern)
{
list($pattern, $pattern_a, $forceignorelist) = $autolink_pattern;
$fp = fopen($filename, 'w') or
die_message('Cannot open ' . $filename);
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
rewind($fp);
fputs($fp, $pattern . "\n");
fputs($fp, $pattern_a . "\n");
fputs($fp, join("\t", $forceignorelist) . "\n");
flock($fp, LOCK_UN);
fclose($fp);
}
// Get elapsed date of the page
function get_pg_passage($page, $sw = TRUE)
{
global $show_passage;
if (! $show_passage) return '';
$time = get_filetime($page);
$pg_passage = ($time != 0) ? get_passage($time) : '';
return $sw ? '<small>' . $pg_passage . '</small>' : ' ' . $pg_passage;
}
// Last-Modified header
function header_lastmod($page = NULL)
{
global $lastmod;
if ($lastmod && is_page($page)) {
pkwk_headers_sent();
header('Last-Modified: ' .
date('D, d M Y H:i:s', get_filetime($page)) . ' GMT');
}
}
// Get a list of encoded files (must specify a directory and a suffix)
function get_existfiles($dir = DATA_DIR, $ext = '.txt')
{
$aryret = array();
$pattern = '/^(?:[0-9A-F]{2})+' . preg_quote($ext, '/') . '$/';
$dp = @opendir($dir) or die_message($dir . ' is not found or not readable.');
while (($file = readdir($dp)) !== FALSE) {
if (preg_match($pattern, $file)) {
$aryret[] = $dir . $file;
}
}
closedir($dp);
return $aryret;
}
// Get a page list of this wiki
function get_existpages($dir = DATA_DIR, $ext = '.txt')
{
$aryret = array();
$pattern = '/^((?:[0-9A-F]{2})+)' . preg_quote($ext, '/') . '$/';
$dp = @opendir($dir) or die_message($dir . ' is not found or not readable.');
$matches = array();
while (($file = readdir($dp)) !== FALSE) {
if (preg_match($pattern, $file, $matches)) {
$aryret[$file] = decode($matches[1]);
}
}
closedir($dp);
return $aryret;
}
// Get PageReading(pronounce-annotated) data in an array()
function get_readings()
{
global $pagereading_enable, $pagereading_kanji2kana_converter;
global $pagereading_kanji2kana_encoding, $pagereading_chasen_path;
global $pagereading_kakasi_path, $pagereading_config_page;
global $pagereading_config_dict;
$pages = get_existpages();
$readings = array();
foreach ($pages as $page)
$readings[$page] = '';
$deletedPage = FALSE;
$matches = array();
foreach (get_source($pagereading_config_page) as $line) {
$line = chop($line);
if(preg_match('/^-\[\[([^]]+)\]\]\s+(.+)$/', $line, $matches)) {
if(isset($readings[$matches[1]])) {
// This page is not clear how to be pronounced
$readings[$matches[1]] = $matches[2];
} else {
// This page seems deleted
$deletedPage = TRUE;
}
}
}
// If enabled ChaSen/KAKASI execution
if($pagereading_enable) {
// Check there's non-clear-pronouncing page
$unknownPage = FALSE;
foreach ($readings as $page => $reading) {
if($reading == '') {
$unknownPage = TRUE;
break;
}
}
// Execute ChaSen/KAKASI, and get annotation
if($unknownPage) {
switch(strtolower($pagereading_kanji2kana_converter)) {
case 'chasen':
if(! file_exists($pagereading_chasen_path))
die_message('ChaSen not found: ' . $pagereading_chasen_path);
$tmpfname = tempnam(realpath(CACHE_DIR), 'PageReading');
$fp = fopen($tmpfname, 'w') or
die_message('Cannot write temporary file "' . $tmpfname . '".' . "\n");
foreach ($readings as $page => $reading) {
if($reading != '') continue;
fputs($fp, mb_convert_encoding($page . "\n",
$pagereading_kanji2kana_encoding, SOURCE_ENCODING));
}
fclose($fp);
$chasen = "$pagereading_chasen_path -F %y $tmpfname";
$fp = popen($chasen, 'r');
if($fp === FALSE) {
unlink($tmpfname);
die_message('ChaSen execution failed: ' . $chasen);
}
foreach ($readings as $page => $reading) {
if($reading != '') continue;
$line = fgets($fp);
$line = mb_convert_encoding($line, SOURCE_ENCODING,
$pagereading_kanji2kana_encoding);
$line = chop($line);
$readings[$page] = $line;
}
pclose($fp);
unlink($tmpfname) or
die_message('Temporary file can not be removed: ' . $tmpfname);
break;
case 'kakasi': /*FALLTHROUGH*/
case 'kakashi':
if(! file_exists($pagereading_kakasi_path))
die_message('KAKASI not found: ' . $pagereading_kakasi_path);
$tmpfname = tempnam(realpath(CACHE_DIR), 'PageReading');
$fp = fopen($tmpfname, 'w') or
die_message('Cannot write temporary file "' . $tmpfname . '".' . "\n");
foreach ($readings as $page => $reading) {
if($reading != '') continue;
fputs($fp, mb_convert_encoding($page . "\n",
$pagereading_kanji2kana_encoding, SOURCE_ENCODING));
}
fclose($fp);
$kakasi = "$pagereading_kakasi_path -kK -HK -JK < $tmpfname";
$fp = popen($kakasi, 'r');
if($fp === FALSE) {
unlink($tmpfname);
die_message('KAKASI execution failed: ' . $kakasi);
}
foreach ($readings as $page => $reading) {
if($reading != '') continue;
$line = fgets($fp);
$line = mb_convert_encoding($line, SOURCE_ENCODING,
$pagereading_kanji2kana_encoding);
$line = chop($line);
$readings[$page] = $line;
}
pclose($fp);
unlink($tmpfname) or
die_message('Temporary file can not be removed: ' . $tmpfname);
break;
case 'none':
$patterns = $replacements = $matches = array();
foreach (get_source($pagereading_config_dict) as $line) {
$line = chop($line);
if(preg_match('|^ /([^/]+)/,\s*(.+)$|', $line, $matches)) {
$patterns[] = $matches[1];
$replacements[] = $matches[2];
}
}
foreach ($readings as $page => $reading) {
if($reading != '') continue;
$readings[$page] = $page;
foreach ($patterns as $no => $pattern)
$readings[$page] = mb_convert_kana(mb_ereg_replace($pattern,
$replacements[$no], $readings[$page]), 'aKCV');
}
break;
default:
die_message('Unknown kanji-kana converter: ' . $pagereading_kanji2kana_converter . '.');
break;
}
}
if($unknownPage || $deletedPage) {
asort($readings, SORT_STRING); // Sort by pronouncing(alphabetical/reading) order
$body = '';
foreach ($readings as $page => $reading)
$body .= '-[[' . $page . ']] ' . $reading . "\n";
page_write($pagereading_config_page, $body);
}
}
// Pages that are not prounouncing-clear, return pagenames of themselves
foreach ($pages as $page) {
if($readings[$page] == '')
$readings[$page] = $page;
}
return $readings;
}
// Get a list of related pages of the page
function links_get_related($page)
{
global $vars, $related;
static $links = array();
if (isset($links[$page])) return $links[$page];
// If possible, merge related pages generated by make_link()
$links[$page] = ($page === $vars['page']) ? $related : array();
// Get repated pages from DB
$links[$page] += links_get_related_db($vars['page']);
return $links[$page];
}
// _If needed_, re-create the file to change/correct ownership into PHP's
// NOTE: Not works for Windows
function pkwk_chown($filename, $preserve_time = TRUE)
{
static $php_uid; // PHP's UID
if (! isset($php_uid)) {
if (extension_loaded('posix')) {
$php_uid = posix_getuid(); // Unix
} else {
$php_uid = 0; // Windows
}
}
// Lock for pkwk_chown()
$lockfile = CACHE_DIR . 'pkwk_chown.lock';
$flock = fopen($lockfile, 'a') or
die('pkwk_chown(): fopen() failed for: CACHEDIR/' .
basename(htmlsc($lockfile)));
flock($flock, LOCK_EX) or die('pkwk_chown(): flock() failed for lock');
// Check owner
$stat = stat($filename) or
die('pkwk_chown(): stat() failed for: ' . basename(htmlsc($filename)));
if ($stat[4] === $php_uid) {
// NOTE: Windows always here
$result = TRUE; // Seems the same UID. Nothing to do
} else {
$tmp = $filename . '.' . getmypid() . '.tmp';
// Lock source $filename to avoid file corruption
// NOTE: Not 'r+'. Don't check write permission here
$ffile = fopen($filename, 'r') or
die('pkwk_chown(): fopen() failed for: ' .
basename(htmlsc($filename)));
// Try to chown by re-creating files
// NOTE:
// * touch() before copy() is for 'rw-r--r--' instead of 'rwxr-xr-x' (with umask 022).
// * (PHP 4 < PHP 4.2.0) touch() with the third argument is not implemented and retuns NULL and Warn.
// * @unlink() before rename() is for Windows but here's for Unix only
flock($ffile, LOCK_EX) or die('pkwk_chown(): flock() failed');
$result = touch($tmp) && copy($filename, $tmp) &&
($preserve_time ? (touch($tmp, $stat[9], $stat[8]) || touch($tmp, $stat[9])) : TRUE) &&
rename($tmp, $filename);
flock($ffile, LOCK_UN) or die('pkwk_chown(): flock() failed');
fclose($ffile) or die('pkwk_chown(): fclose() failed');
if ($result === FALSE) @unlink($tmp);
}
// Unlock for pkwk_chown()
flock($flock, LOCK_UN) or die('pkwk_chown(): flock() failed for lock');
fclose($flock) or die('pkwk_chown(): fclose() failed for lock');
return $result;
}
// touch() with trying pkwk_chown()
function pkwk_touch_file($filename, $time = FALSE, $atime = FALSE)
{
// Is the owner incorrected and unable to correct?
if (! file_exists($filename) || pkwk_chown($filename)) {
if ($time === FALSE) {
$result = touch($filename);
} else if ($atime === FALSE) {
$result = touch($filename, $time);
} else {
$result = touch($filename, $time, $atime);
}
return $result;
} else {
die('pkwk_touch_file(): Invalid UID and (not writable for the directory or not a flie): ' .
htmlsc(basename($filename)));
}
}
?>