<?php
// PukiWiki - Yet another WikiWikiWeb clone.
-// $Id: file.php,v 1.95 2011/01/25 15:01:01 henoheno Exp $
-// Copyright (C)
-// 2002-2006 PukiWiki Developers Team
+// file.php
+// Copyright
+// 2002-2017 PukiWiki Development Team
// 2001-2002 Originally written by yu-ji
// License: GPL v2 or (at your option) any later version
//
// AutoLink
define('PKWK_AUTOLINK_REGEX_CACHE', 'autolink.dat');
-// Get source(wiki text) data of the page
-// Returns FALSE if error occurerd
-function get_source($page = NULL, $lock = TRUE, $join = FALSE)
+/**
+ * Get source(wiki text) data of the page
+ *
+ * @param $page page name
+ * @param $lock lock
+ * @param $join true: return string, false: return array of string
+ * @param $raw true: return file content as-is
+ * @return FALSE if error occurerd
+ */
+function get_source($page = NULL, $lock = TRUE, $join = FALSE, $raw = FALSE)
{
//$result = NULL; // File is not found
$result = $join ? '' : array();
if ($lock) {
$fp = @fopen($path, 'r');
- if ($fp == FALSE) return FALSE;
+ if ($fp === FALSE) return FALSE;
flock($fp, LOCK_SH);
}
$size = filesize($path);
if ($size === FALSE) {
$result = FALSE;
+ } else if ($size == 0) {
+ $result = '';
} else {
$result = fread($fp, $size);
if ($result !== FALSE) {
- // Removing line-feeds
+ if ($raw) {
+ return $result;
+ }
+ // Removing Carriage-Return
$result = str_replace("\r", '', $result);
}
}
// Returns an array
$result = file($path);
if ($result !== FALSE) {
- // Removing line-feeds
+ // Removing Carriage-Return
$result = str_replace("\r", '', $result);
}
}
return is_page($page) ? filemtime(get_filename($page)) - LOCALZONE : 0;
}
+/**
+ * Get last-modified filemtime (plain value) of the page.
+ *
+ * @param $page
+ */
+function get_page_date_atom($page)
+{
+ if (is_page($page)) {
+ return get_date_atom(filemtime(get_filename($page)));
+ }
+ return null;
+}
+
// Get physical file name of the page
function get_filename($page)
{
if (PKWK_READONLY) return; // Do nothing
$postdata = make_str_rules($postdata);
+ $timestamp_to_keep = null;
+ if ($notimestamp) {
+ $timestamp_to_keep = get_filetime($page);
+ }
+ $text_without_author = remove_author_info($postdata);
+ $postdata = add_author_info($text_without_author, $timestamp_to_keep);
+ $is_delete = empty($text_without_author);
- // Create and write diff
+ // Do nothing when it has no changes
$oldpostdata = is_page($page) ? join('', get_source($page)) : '';
+ $oldtext_without_author = remove_author_info($oldpostdata);
+ if (!$is_delete && $text_without_author === $oldtext_without_author) {
+ // Do nothing on updating with unchanged content
+ return;
+ }
+ // Create and write diff
$diffdata = do_diff($oldpostdata, $postdata);
file_write(DIFF_DIR, $page, $diffdata);
// Create backup
- make_backup($page, $postdata == ''); // Is $postdata null?
+ make_backup($page, $is_delete, $postdata); // Is $postdata null?
// Create wiki text
- file_write(DATA_DIR, $page, $postdata, $notimestamp);
+ file_write(DATA_DIR, $page, $postdata, $notimestamp, $is_delete);
links_update($page);
}
return implode("\n", $lines);
}
+/**
+ * Add author plugin text for wiki text body
+ *
+ * @param string $wikitext
+ * @param integer $timestamp_to_keep Set null when not to keep timestamp
+ */
+function add_author_info($wikitext, $timestamp_to_keep)
+{
+ global $auth_user, $auth_user_fullname;
+ $author = preg_replace('/"/', '', $auth_user);
+ $fullname = $auth_user_fullname;
+ if (!$fullname && $author) {
+ // Fullname is empty, use $author as its fullname
+ $fullname = preg_replace('/^[^:]*:/', '', $author);
+ }
+ $datetime_to_keep = '';
+ if (!is_null($timestamp_to_keep)) {
+ $datetime_to_keep .= ';' . get_date_atom($timestamp_to_keep + LOCALZONE);
+ }
+ $displayname = preg_replace('/"/', '', $fullname);
+ $user_prefix = get_auth_user_prefix();
+ $author_text = sprintf('#author("%s","%s","%s")',
+ get_date_atom(UTIME + LOCALZONE) . $datetime_to_keep,
+ ($author ? $user_prefix . $author : ''),
+ $displayname) . "\n";
+ return $author_text . $wikitext;
+}
+
+function remove_author_info($wikitext)
+{
+ return preg_replace('/^\s*#author\([^\n]*(\n|$)/m', '', $wikitext);
+}
+
+/**
+ * Remove author line from wikitext
+ */
+function remove_author_header($wikitext)
+{
+ $start = 0;
+ while (($pos = strpos($wikitext, "\n", $start)) != false) {
+ $line = substr($wikitext, $start, $pos);
+ $m = null;
+ if (preg_match('/^#author\(/', $line, $m)) {
+ // fond #author line, Remove this line only
+ if ($start === 0) {
+ return substr($wikitext, $pos + 1);
+ } else {
+ return substr($wikitext, 0, $start - 1) .
+ substr($wikitext, $pos + 1);
+ }
+ } else if (preg_match('/^#freeze(\W|$)/', $line, $m)) {
+ // Found #freeze still in header
+ } else {
+ // other line, #author not found
+ return $wikitext;
+ }
+ $start = $pos + 1;
+ }
+ return $wikitext;
+}
+
+/**
+ * Get author info from wikitext
+ */
+function get_author_info($wikitext)
+{
+ $start = 0;
+ while (($pos = strpos($wikitext, "\n", $start)) != false) {
+ $line = substr($wikitext, $start, $pos);
+ $m = null;
+ if (preg_match('/^#author\(/', $line, $m)) {
+ return $line;
+ } else if (preg_match('/^#freeze(\W|$)/', $line, $m)) {
+ // Found #freeze still in header
+ } else {
+ // other line, #author not found
+ return null;
+ }
+ $start = $pos + 1;
+ }
+ return null;
+}
+
+/**
+ * Get updated datetime from author
+ */
+function get_update_datetime_from_author($author_line) {
+ $m = null;
+ if (preg_match('/^#author\(\"([^\";]+)(?:;([^\";]+))?/', $author_line, $m)) {
+ if ($m[2]) {
+ return $m[2];
+ } else if ($m[1]) {
+ return $m[1];
+ }
+ }
+ return null;
+}
+
// Generate ID
function generate_fixed_heading_anchor_id($seed)
{
- // A random alphabetic letter + 7 letters of random strings from md()
+ // A random alphabetic letter + 7 letters of random strings from md5()
return chr(mt_rand(ord('a'), ord('z'))) .
substr(md5(uniqid(substr($seed, 0, 100), TRUE)),
mt_rand(0, 24), 7);
}
// Output to a file
-function file_write($dir, $page, $str, $notimestamp = FALSE)
+function file_write($dir, $page, $str, $notimestamp = FALSE, $is_delete = FALSE)
{
global $_msg_invalidiwn, $notify, $notify_diff_only, $notify_subject;
global $whatsdeleted, $maxshow_deleted;
// ----
// Delete?
- if ($dir == DATA_DIR && $str === '') {
+ if ($dir == DATA_DIR && $is_delete) {
// Page deletion
if (! $file_exists) return; // Ignore null posting for DATA_DIR
} else if ($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['PAGE'] = $page;
+ $footer['URI'] = get_page_uri($page, PKWK_URI_ABSOLUTE);
$footer['USER_AGENT'] = TRUE;
$footer['REMOTE_ADDR'] = TRUE;
pkwk_mail_notify($notify_subject, $str, $footer) or
die('pkwk_mail_notify(): Failed');
}
-
+ if ($dir === DIFF_DIR) {
+ pkwk_log_updates($page, $str);
+ }
is_page($page, TRUE); // Clear is_page() cache
}
// Check ALL filetime
$recent_pages = array();
foreach($pages as $page)
- if ($page != $whatsnew && ! check_non_list($page))
+ if ($page !== $whatsnew && ! check_non_list($page))
$recent_pages[$page] = get_filetime($page);
// Sort decending order of last-modification date
}
}
+/**
+ * Get recent files
+ *
+ * @return Array of (file => time)
+ */
+function get_recent_files()
+{
+ $recentfile = CACHE_DIR . PKWK_MAXSHOW_CACHE;
+ $lines = file($recentfile);
+ if (!$lines) return array();
+ $files = array();
+ foreach ($lines as $line) {
+ list ($time, $file) = explode("\t", rtrim($line));
+ $files[$file] = $time;
+ }
+ return $files;
+}
+
+/**
+ * Update RecentChanges page / Invalidate recent.dat
+ */
+function delete_recent_changes_cache() {
+ $file = CACHE_DIR . PKWK_MAXSHOW_CACHE;
+ unlink($file);
+}
+
// Get elapsed date of the page
function get_pg_passage($page, $sw = TRUE)
{
}
}
-// Get a page list of this wiki
-function get_existpages($dir = DATA_DIR, $ext = '.txt')
+// Get a list of encoded files (must specify a directory and a suffix)
+function get_existfiles($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);
- $pattern = '((?:[0-9A-F]{2})+)';
- if ($ext != '') $ext = preg_quote($ext, '/');
- $pattern = '/^' . $pattern . $ext . '$/';
+ return $aryret;
+}
+
+/**
+ * Get/Set pagelist cache enabled for get_existpages()
+ *
+ * @param $newvalue Set true when the system can cache the page list
+ * @return true if can use page list cache
+ */
+function is_pagelist_cache_enabled($newvalue = null)
+{
+ static $cache_enabled = null;
+
+ if (!is_null($newvalue)) {
+ $cache_enabled = $newvalue;
+ return; // Return nothing on setting newvalue call
+ }
+ if (is_null($cache_enabled)) {
+ return false;
+ }
+ return $cache_enabled;
+}
+
+// Get a page list of this wiki
+function get_existpages($dir = DATA_DIR, $ext = '.txt')
+{
+ static $cached_list = null; // Cached wikitext page list
+ $use_cache = false;
- $dp = @opendir($dir) or
- die_message($dir . ' is not found or not readable.');
+ if ($dir === DATA_DIR && $ext === '.txt' && is_pagelist_cache_enabled()) {
+ // Use pagelist cache for "wiki/*.txt" files
+ if (!is_null($cached_list)) {
+ return $cached_list;
+ }
+ $use_cache = true;
+ }
+ $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($dp))
- if (preg_match($pattern, $file, $matches))
+ while (($file = readdir($dp)) !== FALSE) {
+ if (preg_match($pattern, $file, $matches)) {
$aryret[$file] = decode($matches[1]);
+ }
+ }
closedir($dp);
-
+ if ($use_cache) {
+ $cached_list = $aryret;
+ }
return $aryret;
}
return $readings;
}
-// Get a list of encoded files (must specify a directory and a suffix)
-function get_existfiles($dir, $ext)
-{
- $pattern = '/^(?:[0-9A-F]{2})+' . preg_quote($ext, '/') . '$/';
- $aryret = array();
- $dp = @opendir($dir) or die_message($dir . ' is not found or not readable.');
- while ($file = readdir($dp))
- if (preg_match($pattern, $file))
- $aryret[] = $dir . $file;
- closedir($dp);
- return $aryret;
-}
-
// Get a list of related pages of the page
function links_get_related($page)
{
if (isset($links[$page])) return $links[$page];
// If possible, merge related pages generated by make_link()
- $links[$page] = ($page == $vars['page']) ? $related : array();
+ $links[$page] = ($page === $vars['page']) ? $related : array();
// Get repated pages from DB
$links[$page] += links_get_related_db($vars['page']);
htmlsc(basename($filename)));
}
}
-?>
+
+/**
+ * Lock-enabled file_get_contents
+ *
+ * Require: PHP5+
+ */
+function pkwk_file_get_contents($filename) {
+ if (! file_exists($filename)) {
+ return false;
+ }
+ $fp = fopen($filename, 'rb');
+ flock($fp, LOCK_SH);
+ $file = file_get_contents($filename);
+ flock($fp, LOCK_UN);
+ return $file;
+}
+
+/**
+ * Prepare some cache files for convert_html()
+ *
+ * * Make cache/autolink.dat if needed
+ */
+function prepare_display_materials() {
+ global $autolink;
+ if ($autolink) {
+ // Make sure 'cache/autolink.dat'
+ $file = CACHE_DIR . PKWK_AUTOLINK_REGEX_CACHE;
+ if (!file_exists($file)) {
+ // Re-create autolink.dat
+ put_lastmodified();
+ }
+ }
+}
+
+/**
+ * Prepare page related links and references for links_get_related()
+ */
+function prepare_links_related($page) {
+ $enc_name = encode($page);
+ $rel_file = CACHE_DIR . encode($page) . '.rel';
+ $ref_file = CACHE_DIR . encode($page) . '.ref';
+ if (file_exists($rel_file)) return;
+ if (file_exists($ref_file)) return;
+ $pattern = '/^((?:[0-9A-F]{2})+)' . '(\.ref|\.rel)' . '$/';
+
+ $dir = CACHE_DIR;
+ $dp = @opendir($dir) or die_message('CACHE_DIR/'. ' is not found or not readable.');
+ $rel_ref_ready = false;
+ $count = 0;
+ while (($file = readdir($dp)) !== FALSE) {
+ if (preg_match($pattern, $file, $matches)) {
+ if ($count++ > 5) {
+ $rel_ref_ready = true;
+ break;
+ }
+ }
+ }
+ closedir($dp);
+ if (!$rel_ref_ready) {
+ if (count(get_existpages()) < 50) {
+ // Make link files automatically only if page count < 50.
+ // Because large number of update links will cause PHP timeout.
+ links_init();
+ }
+ }
+}
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