<?php
// PukiWiki - Yet another WikiWikiWeb clone.
-// $Id: file.php,v 1.38 2005/08/01 15:38:26 henoheno Exp $
+// $Id: file.php,v 1.95 2011/01/25 15:01:01 henoheno Exp $
// Copyright (C)
-// 2002-2005 PukiWiki Developers Team
+// 2002-2006 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');
+
+// AutoLink
+define('PKWK_AUTOLINK_REGEX_CACHE', 'autolink.dat');
+
// Get source(wiki text) data of the page
-function get_source($page = NULL, $lock = TRUE)
+function get_source($page = NULL, $lock = TRUE, $join = FALSE)
{
- $array = array();
+ $result = $join ? '' : array();
if (is_page($page)) {
$path = get_filename($page);
if ($lock) {
$fp = @fopen($path, 'r');
- if ($fp == FALSE) return $array;
+ if ($fp == FALSE) return $result;
flock($fp, LOCK_SH);
}
- // Removing line-feeds: Because file() doesn't remove them.
- $array = str_replace("\r", '', file($path));
+ if ($join) {
+ // Returns a value
+ $size = filesize($path);
+ if ($size > 0) {
+ $result = str_replace("\r", '', fread($fp, filesize($path)));
+ } else {
+ $result = '';
+ }
+ } else {
+ // Returns an array
+ // Removing line-feeds: Because file() doesn't remove them.
+ $result = str_replace("\r", '', file($path));
+ }
if ($lock) {
flock($fp, LOCK_UN);
}
}
- return $array;
+ return $result;
}
// Get last-modified filetime of the page
// Put a data(wiki text) into a physical file(diff, backup, text)
function page_write($page, $postdata, $notimestamp = FALSE)
{
- global $trackback;
-
if (PKWK_READONLY) return; // Do nothing
$postdata = make_str_rules($postdata);
// Create wiki text
file_write(DATA_DIR, $page, $postdata, $notimestamp);
- if ($trackback) {
- // TrackBack Ping
- $_diff = explode("\n", $diffdata);
- $plus = join("\n", preg_replace('/^\+/', '', preg_grep('/^\+/', $_diff)));
- $minus = join("\n", preg_replace('/^-/', '', preg_grep('/^-/', $_diff)));
- tb_send($page, $plus, $minus);
- }
-
links_update($page);
}
-// Modify ogirinal text with user-defined / system-defined rules
+// Modify original text with user-defined / system-defined rules
function make_str_rules($source)
{
global $str_rules, $fixed_heading_anchor;
mt_rand(0, 24), 7);
}
+// Read top N lines as an array
+// (Use PHP file() function if you want to get ALL lines)
+function file_head($file, $count = 1, $lock = TRUE, $buffer = 8192)
+{
+ $array = array();
+
+ $fp = @fopen($file, 'r');
+ if ($fp === FALSE) return FALSE;
+ set_file_buffer($fp, 0);
+ if ($lock) flock($fp, LOCK_SH);
+ rewind($fp);
+ $index = 0;
+ while (! feof($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 $update_exec, $_msg_invalidiwn, $notify, $notify_diff_only, $notify_subject;
+ global $_msg_invalidiwn, $notify, $notify_diff_only, $notify_subject;
global $whatsdeleted, $maxshow_deleted;
if (PKWK_READONLY) return; // Do nothing
+ if ($dir != DATA_DIR && $dir != DIFF_DIR) die('file_write(): Invalid directory');
- if (! is_pagename($page))
- die_message(str_replace('$1', htmlspecialchars($page),
- str_replace('$2', 'WikiName', $_msg_invalidiwn)));
+ $page = strip_bracket($page);
+ $file = $dir . encode($page) . '.txt';
+ $file_exists = file_exists($file);
- $page = strip_bracket($page);
- $file = $dir . encode($page) . '.txt';
- $timestamp = FALSE;
+ // ----
+ // Delete?
- if ($str === '') {
- if ($dir == DATA_DIR && file_exists($file)) {
- // File deletion
- unlink($file);
- add_recent($page, $whatsdeleted, '', $maxshow_deleted); // RecentDeleted
- }
- } else {
- // File replacement (Edit)
- $str = rtrim(preg_replace('/' . "\r" . '/', '', $str)) . "\n";
-
- if ($notimestamp && file_exists($file))
- $timestamp = filemtime($file) - LOCALZONE;
+ if ($dir == DATA_DIR && $str === '') {
+ // Page deletion
+ if (! $file_exists) return; // Ignore null posting for DATA_DIR
- $fp = fopen($file, 'a') or die('fopen() failed: ' .
- htmlspecialchars(basename($dir) . '/' . encode($page) . '.txt') .
- '<br />' . "\n" .
- 'Maybe permission is not writable or filename is too long');
- set_file_buffer($fp, 0);
+ // Update RecentDeleted (Add the $page)
+ add_recent($page, $whatsdeleted, '', $maxshow_deleted);
- flock($fp, LOCK_EX);
+ // Remove the page
+ unlink($file);
- // Write
- ftruncate($fp, 0);
- rewind($fp);
- fputs($fp, $str);
+ // Update RecentDeleted, and remove the page from RecentChanges
+ lastmodified_add($whatsdeleted, $page);
- flock($fp, LOCK_UN);
+ // Clear is_page() cache
+ is_page($page, TRUE);
- fclose($fp);
+ return;
- if ($timestamp) pkwk_touch_file($file, $timestamp + LOCALZONE);
+ } else if ($dir == DIFF_DIR && $str === " \n") {
+ return; // Ignore null posting for DIFF_DIR
}
- // Clear is_page() cache
- is_page($page, TRUE);
+ // ----
+ // File replacement (Edit)
- if (! $timestamp && $dir == DATA_DIR)
- put_lastmodified();
+ if (! is_pagename($page))
+ die_message(str_replace('$1', htmlsc($page),
+ str_replace('$2', 'WikiName', $_msg_invalidiwn)));
- // Execute $update_exec here
- if ($update_exec && $dir == DATA_DIR)
- system($update_exec . ' > /dev/null &');
+ $str = rtrim(preg_replace('/' . "\r" . '/', '', $str)) . "\n";
+ $timestamp = ($file_exists && $notimestamp) ? filemtime($file) : FALSE;
- if ($notify && $dir == DIFF_DIR) {
- if ($notify_diff_only) $str = preg_replace('/^[^-+].*\n/m', '', $str);
+ $fp = fopen($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);
$footer['ACTION'] = 'Page update';
$footer['PAGE'] = & $page;
$footer['URI'] = get_script_uri() . '?' . rawurlencode($page);
$footer['USER_AGENT'] = TRUE;
$footer['REMOTE_ADDR'] = TRUE;
-
pkwk_mail_notify($notify_subject, $str, $footer) or
die('pkwk_mail_notify(): Failed');
}
+
+ is_page($page, TRUE); // Clear is_page() cache
}
// Update RecentDeleted
function add_recent($page, $recentpage, $subject = '', $limit = 0)
{
- if (PKWK_READONLY || $limit == 0 || $page == '' || $recentpage == '') return;
+ if (PKWK_READONLY || $limit == 0 || $page == '' || $recentpage == '' ||
+ check_non_list($page)) return;
// Load
$lines = $matches = array();
// Add
array_unshift($lines, '-' . format_date(UTIME) . ' - ' . $_page .
- htmlspecialchars($subject) . "\n");
+ 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 ' .
- htmlspecialchars($recentpage) .
+ htmlsc($recentpage) .
'<br />Maybe permission is not writable or filename is too long');
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
fclose($fp);
}
-// Update RecentChanges
+// 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, $non_list, $autolink;
+ global $maxshow, $whatsnew, $autolink;
if (PKWK_READONLY) return; // Do nothing
+ // Get WHOLE page list
$pages = get_existpages();
+
+ // Check ALL filetime
$recent_pages = array();
- $non_list_pattern = '/' . $non_list . '/';
foreach($pages as $page)
- if ($page != $whatsnew && ! preg_match($non_list_pattern, $page))
+ if ($page != $whatsnew && ! check_non_list($page))
$recent_pages[$page] = get_filetime($page);
// Sort decending order of last-modification date
arsort($recent_pages, SORT_NUMERIC);
- // Create recent.dat (for recent.inc.php)
- $fp = fopen(CACHE_DIR . 'recent.dat', 'w') or
- die_message('Cannot write cache file ' .
- CACHE_DIR . 'recent.dat' .
- '<br />Maybe permission is not writable or filename is too long');
+ // 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" . $page . "\n");
fclose($fp);
// Create RecentChanges
- $fp = fopen(get_filename($whatsnew), 'w') or
- die_message('Cannot write page file ' .
- htmlspecialchars($whatsnew) .
- '<br />Maybe permission is not writable or filename is too long');
-
+ $file = get_filename($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($fp);
- foreach (array_splice(array_keys($recent_pages), 0, $maxshow) as $page) {
+ foreach (array_keys($recent_pages) as $page) {
$time = $recent_pages[$page];
- $s_lastmod = htmlspecialchars(format_date($time));
- $s_page = htmlspecialchars($page);
+ $s_lastmod = htmlsc(format_date($time));
+ $s_page = htmlsc($page);
fputs($fp, '-' . $s_lastmod . ' - [[' . $s_page . ']]' . "\n");
}
fputs($fp, '#norelated' . "\n"); // :)
list($pattern, $pattern_a, $forceignorelist) =
get_autolink_pattern($pages);
- $fp = fopen(CACHE_DIR . 'autolink.dat', 'w') or
- die_message('Cannot write autolink file ' .
- CACHE_DIR . '/autolink.dat' .
- '<br />Maybe permission is not writable');
+ $file = CACHE_DIR . PKWK_AUTOLINK_REGEX_CACHE;
+ pkwk_touch_file($file);
+ $fp = fopen($file, 'r+') or
+ die_message('Cannot open ' . 'CACHE_DIR/' . PKWK_AUTOLINK_REGEX_CACHE);
set_file_buffer($fp, 0);
flock($fp, LOCK_EX);
+ ftruncate($fp, 0);
rewind($fp);
fputs($fp, $pattern . "\n");
fputs($fp, $pattern_a . "\n");
}
}
-// Get elapsed date of the pate
+// Get elapsed date of the page
function get_pg_passage($page, $sw = TRUE)
{
global $show_passage;
if(! file_exists($pagereading_chasen_path))
die_message('ChaSen not found: ' . $pagereading_chasen_path);
- $tmpfname = tempnam(CACHE_DIR, 'PageReading');
+ $tmpfname = tempnam(realpath(CACHE_DIR), 'PageReading');
$fp = fopen($tmpfname, 'w') or
die_message('Cannot write temporary file "' . $tmpfname . '".' . "\n");
foreach ($readings as $page => $reading) {
if(! file_exists($pagereading_kakasi_path))
die_message('KAKASI not found: ' . $pagereading_kakasi_path);
- $tmpfname = tempnam(CACHE_DIR, 'PageReading');
+ $tmpfname = tempnam(realpath(CACHE_DIR), 'PageReading');
$fp = fopen($tmpfname, 'w') or
die_message('Cannot write temporary file "' . $tmpfname . '".' . "\n");
foreach ($readings as $page => $reading) {
if($unknownPage || $deletedPage) {
- asort($readings); // Sort by pronouncing(alphabetical/reading) order
+ asort($readings, SORT_STRING); // Sort by pronouncing(alphabetical/reading) order
$body = '';
foreach ($readings as $page => $reading)
$body .= '-[[' . $page . ']] ' . $reading . "\n";
$lockfile = CACHE_DIR . 'pkwk_chown.lock';
$flock = fopen($lockfile, 'a') or
die('pkwk_chown(): fopen() failed for: CACHEDIR/' .
- basename(htmlspecialchars($lockfile)));
+ basename(htmlsc($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(htmlspecialchars($filename)));
+ die('pkwk_chown(): stat() failed for: ' . basename(htmlsc($filename)));
if ($stat[4] === $php_uid) {
// NOTE: Windows always here
$result = TRUE; // Seems the same UID. Nothing to do
// NOTE: Not 'r+'. Don't check write permission here
$ffile = fopen($filename, 'r') or
die('pkwk_chown(): fopen() failed for: ' .
- basename(htmlspecialchars($filename)));
+ basename(htmlsc($filename)));
// Try to chown by re-creating files
// NOTE:
return $result;
} else {
die('pkwk_touch_file(): Invalid UID and (not writable for the directory or not a flie): ' .
- htmlspecialchars(basename($filename)));
+ htmlsc(basename($filename)));
}
}
?>