<?php
// PukiWiki - Yet another WikiWikiWeb clone.
-// $Id: file.php,v 1.11 2005/01/10 04:24:31 henoheno Exp $
+// $Id: file.php,v 1.33 2005/07/31 03:12:06 henoheno Exp $
+// Copyright (C)
+// 2002-2005 PukiWiki Developers Team
+// 2001-2002 Originally written by yu-ji
+// License: GPL v2 or (at your option) any later version
//
// File related functions
// Get source(wiki text) data of the page
function get_source($page = NULL)
{
- // Removing line-feeds: Because file() doesn't remove them.
- return is_page($page) ? str_replace("\r", '', file(get_filename($page))) : array();
+ $array = array();
+
+ if (is_page($page)) {
+ $path = get_filename($page);
+
+ $fp = @fopen($path, 'r');
+ if ($fp == FALSE) return $array;
+ flock($fp, LOCK_SH);
+
+ // Removing line-feeds: Because file() doesn't remove them.
+ $array = str_replace("\r", '', file($path));
+
+ flock($fp, LOCK_UN);
+ @fclose($fp);
+ }
+
+ return $array;
}
// Get last-modified filetime of the page
{
global $trackback;
+ if (PKWK_READONLY) return; // Do nothing
+
$postdata = make_str_rules($postdata);
// Create and write diff
links_update($page);
}
-// User-defined rules (replace the source)
-function make_str_rules($str)
+// Modify ogirinal text with user-defined / system-defined rules
+function make_str_rules($source)
{
global $str_rules, $fixed_heading_anchor;
- $arr = explode("\n", $str);
-
- $retvars = $matches = array();
- foreach ($arr as $str) {
- if ($str != '' && $str{0} != ' ' && $str{0} != "\t") {
- foreach ($str_rules as $rule => $replace)
- $str = preg_replace("/$rule/", $replace, $str);
+ $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}(.(?!\[#[A-Za-z][\w-]+\]))+)$/', $str, $matches))
- {
- // Generate ID:
- // A random alphabetic letter + 7 letters of random strings from md()
- $anchor = chr(mt_rand(ord('a'), ord('z'))) .
- substr(md5(uniqid(substr($matches[1], 0, 100), 1)), mt_rand(0, 24), 7);
- $str = rtrim($matches[1]) . " [#$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 . ']';
}
- $retvars[] = $str;
}
- return join("\n", $retvars);
+ // 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 md()
+ return chr(mt_rand(ord('a'), ord('z'))) .
+ substr(md5(uniqid(substr($seed, 0, 100), TRUE)),
+ mt_rand(0, 24), 7);
}
// Output to a file
function file_write($dir, $page, $str, $notimestamp = FALSE)
{
- global $update_exec;
- global $_msg_invalidiwn;
- global $notify, $notify_diff_only, $notify_to, $notify_subject, $notify_header;
- global $smtp_server, $smtp_auth;
+ global $update_exec, $_msg_invalidiwn, $notify, $notify_diff_only, $notify_subject;
+ global $whatsdeleted, $maxshow_deleted;
+
+ if (PKWK_READONLY) return; // Do nothing
if (! is_pagename($page))
die_message(str_replace('$1', htmlspecialchars($page),
if ($dir == DATA_DIR && $str == '' && file_exists($file)) {
unlink($file);
- put_recentdeleted($page);
+ add_recent($page, $whatsdeleted, '', $maxshow_deleted); // RecentDeleted
}
if ($str != '') {
- $str = preg_replace("/\r/", '', $str);
+ $str = preg_replace('/' . "\r" . '/', '', $str);
$str = rtrim($str) . "\n";
if ($notimestamp && file_exists($file))
$timestamp = filemtime($file) - LOCALZONE;
- $fp = fopen($file, 'w') or
- die_message('Cannot write page file or diff file or other ' .
- htmlspecialchars($page) .
- '<br />Maybe permission is not writable or filename is too long');
+ $fp = fopen($file, 'w') 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($fp, 0);
flock($fp, LOCK_EX);
fputs($fp, $str);
flock($fp, LOCK_UN);
fclose($fp);
- if ($timestamp)
- touch($file, $timestamp + LOCALZONE);
+
+ if ($timestamp) pkwk_touch_file($file, $timestamp + LOCALZONE);
}
// Clear is_page() cache
if ($notify && $dir == DIFF_DIR) {
if ($notify_diff_only) $str = preg_replace('/^[^-+].*\n/m', '', $str);
- $str .= "\n" .
- str_repeat('-', 30) . "\n" .
- 'URI: ' . get_script_uri() . '?' . rawurlencode($page) . "\n" .
- 'REMOTE_ADDR: ' . $_SERVER['REMOTE_ADDR'] . "\n";
- $subject = str_replace('$page', $page, $notify_subject);
- ini_set('SMTP', $smtp_server);
- mb_language(LANG);
+ $footer['ACTION'] = 'Page update';
+ $footer['PAGE'] = & $page;
+ $footer['URI'] = get_script_uri() . '?' . rawurlencode($page);
+ $footer['USER_AGENT'] = TRUE;
+ $footer['REMOTE_ADDR'] = TRUE;
- if ($smtp_auth) pop_before_smtp();
- mb_send_mail($notify_to, $subject, $str, $notify_header);
+ pkwk_mail_notify($notify_subject, $str, $footer) or
+ die('pkwk_mail_notify(): Failed');
}
}
// Update RecentDeleted
-function put_recentdeleted($page)
+function add_recent($page, $recentpage, $subject = '', $limit = 0)
{
- global $whatsdeleted, $maxshow_deleted;
-
- if ($maxshow_deleted == 0) return;
+ if (PKWK_READONLY || $limit == 0 || $page == '' || $recentpage == '') return;
+ // Load
$lines = $matches = array();
- foreach (get_source($whatsdeleted) as $line)
+ foreach (get_source($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[$_page]);
- array_unshift($lines, '-' . format_date(UTIME) . ' - ' . $_page . "\n");
- $lines = array_splice($lines, 0, $maxshow_deleted);
+ // Add
+ array_unshift($lines, '-' . format_date(UTIME) . ' - ' . $_page .
+ htmlspecialchars($subject) . "\n");
+
+ // Get latest $limit reports
+ $lines = array_splice($lines, 0, $limit);
- $fp = fopen(get_filename($whatsdeleted), 'w') or
+ // Update
+ $fp = fopen(get_filename($recentpage), 'w') or
die_message('Cannot write page file ' .
- htmlspecialchars($whatsdeleted) .
+ htmlspecialchars($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, join('', $lines));
+ fputs($fp, '#freeze' . "\n");
fputs($fp, '#norelated' . "\n"); // :)
+ fputs($fp, join('', $lines));
flock($fp, LOCK_UN);
fclose($fp);
}
{
global $maxshow, $whatsnew, $non_list, $autolink;
+ if (PKWK_READONLY) return; // Do nothing
+
$pages = get_existpages();
$recent_pages = array();
$non_list_pattern = '/' . $non_list . '/';
$time = get_filetime($page);
$pg_passage = ($time != 0) ? get_passage($time) : '';
- return $sw ? "<small>$pg_passage</small>" : " $pg_passage";
+ return $sw ? '<small>' . $pg_passage . '</small>' : ' ' . $pg_passage;
}
// Last-Modified header
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(htmlspecialchars($lockfile)));
+ flock($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($filename)));
+ if ($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(htmlspecialchars($filename)));
+
+ // Try to chown by re-creating files
+ // NOTE:
+ // * touch() before copy() is for 'rw-r--r--' instead of 'rwxr-xr-x' (with umask 022).
+ // * (PHP 4 < PHP 4.2.0) touch() with the third argument is not implemented and retuns NULL and Warn.
+ // * @unlink() before rename() is for Windows but here's for Unix only
+ flock($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 $result;
+ } else {
+ die('pkwk_touch_file(): Invalid UID and (not writable for the directory or not a flie): ' .
+ htmlspecialchars(basename($filename)));
+ }
+}
?>
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