format('Y-m-d H:i:s.u'), 0, 23);
} else {
$timestamp = date('Y-m-d H:i:s');
}
error_log($timestamp . ' ' . $message . "\n", 3, $log_filepath);
}
/*
* Get LTSV safe string - Remove tab and newline chars.
*
* @param $s target string
*/
function get_ltsv_value($s) {
if (!$s) {
return '';
}
return preg_replace('#[\t\r\n]#', '', $s);
}
/**
* Write update_log on updating contents.
*
* @param $page page name
* @param $diff_content diff expression
*/
function pkwk_log_updates($page, $diff_content) {
global $auth_user, $logging_updates, $logging_updates_log_dir;
$log_dir = $logging_updates_log_dir;
$timestamp = time();
$ymd = gmdate('Ymd', $timestamp);
$difflog_file = $log_dir . '/diff.' . $ymd . '.log';
$ltsv_file = $log_dir . '/update.' . $ymd . '.log';
$d = array(
'time' => gmdate('Y-m-d H:i:s', $timestamp),
'uri' => $_SERVER['REQUEST_URI'],
'method' => $_SERVER['REQUEST_METHOD'],
'remote_addr' => $_SERVER['REMOTE_ADDR'],
'user_agent' => $_SERVER['HTTP_USER_AGENT'],
'page' => $page,
'user' => $auth_user,
'diff' => $diff_content
);
if (file_exists($log_dir) && defined('JSON_UNESCAPED_UNICODE')) {
// require: PHP5.4+
$line = json_encode($d, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . "\n";
file_put_contents($difflog_file, $line, FILE_APPEND | LOCK_EX);
$keys = array('time', 'uri', 'method', 'remote_addr', 'user_agent',
'page', 'user');
$ar2 = array();
foreach ($keys as $k) {
$ar2[] = $k . ':' . get_ltsv_value($d[$k]);
}
$ltsv = join($ar2, "\t") . "\n";
file_put_contents($ltsv_file, $ltsv, FILE_APPEND | LOCK_EX);
}
}
/**
* ctype_digit that supports PHP4+.
*
* PHP official document says PHP4 has ctype_digit() function.
* But sometimes it doen't exists on PHP 4.1.
*/
function pkwk_ctype_digit($s) {
static $ctype_digit_exists;
if (!isset($ctype_digit_exists)) {
$ctype_digit_exists = function_exists('ctype_digit');
}
if ($ctype_digit_exists) {
return ctype_digit($s);
}
return preg_match('/^[0-9]+$/', $s) ? true : false;
}
function is_interwiki($str)
{
global $InterWikiName;
return preg_match('/^' . $InterWikiName . '$/', $str);
}
function is_pagename($str)
{
global $BracketName;
$is_pagename = (! is_interwiki($str) &&
preg_match('/^(?!\/)' . $BracketName . '$(? $template) {
$rule_pattrn = '/' . $rule . '/';
if (! preg_match($rule_pattrn, $page, $matches)) continue;
$template_page = preg_replace($rule_pattrn, $template, $page);
if (! is_page($template_page)) continue;
$body = join('', get_source($template_page));
// Remove fixed-heading anchors
$body = preg_replace('/^(\*{1,3}.*)\[#[A-Za-z][\w-]+\](.*)$/m', '$1$2', $body);
// Remove '#freeze'
$body = preg_replace('/^#freeze\s*$/m', '', $body);
$count = count($matches);
for ($i = 0; $i < $count; $i++)
$body = str_replace('$' . $i, $matches[$i], $body);
break;
}
return $body;
}
function _mb_convert_kana__enable($str, $option) {
return mb_convert_kana($str, $option, SOURCE_ENCODING);
}
function _mb_convert_kana__none($str, $option) {
return $str;
}
// Expand all search-words to regexes and push them into an array
function get_search_words($words = array(), $do_escape = FALSE)
{
static $init, $mb_convert_kana, $pre, $post, $quote = '/';
if (! isset($init)) {
// function: mb_convert_kana() is for Japanese code only
if (LANG == 'ja' && function_exists('mb_convert_kana')) {
$mb_convert_kana = '_mb_convert_kana__enable';
} else {
$mb_convert_kana = '_mb_convert_kana__none';
}
if (SOURCE_ENCODING == 'EUC-JP') {
// Perl memo - Correct pattern-matching with EUC-JP
// http://www.din.or.jp/~ohzaki/perl.htm#JP_Match (Japanese)
$pre = '(?';
}
function get_passage_mtime_html_span($mtime)
{
$date_atom = get_date_atom($mtime);
return get_passage_date_html_span($date_atom);
}
/**
* Get passage span html
*
* @param $page
*/
function get_passage_html_span($page)
{
$date_atom = get_page_date_atom($page);
return get_passage_date_html_span($date_atom);
}
function get_link_passage_class() {
return 'link_page_passage';
}
/**
* Get page link general attributes
* @param $page
* @return array('data_mtime' => page mtime or null, 'class' => additinal classes)
*/
function get_page_link_a_attrs($page)
{
global $show_passage;
if ($show_passage) {
$pagemtime = get_page_date_atom($page);
return array(
'data_mtime' => $pagemtime,
'class' => get_link_passage_class(),
);
}
return array(
'data_mtime' => '',
'class' => ''
);
}
/**
* Get page link general attributes from filetime
* @param $filetime
* @return array('data_mtime' => page mtime or null, 'class' => additinal classes)
*/
function get_filetime_a_attrs($filetime)
{
global $show_passage;
if ($show_passage) {
$pagemtime = get_date_atom($filetime + LOCALZONE);
return array(
'data_mtime' => $pagemtime,
'class' => get_link_passage_class(),
);
}
return array(
'data_mtime' => '',
'class' => ''
);
}
// 'Search' main function
function do_search($word, $type = 'AND', $non_format = FALSE, $base = '')
{
global $whatsnew, $non_list, $search_non_list;
global $_msg_andresult, $_msg_orresult, $_msg_notfoundresult;
global $search_auth, $show_passage;
$retval = array();
$b_type = ($type == 'AND'); // AND:TRUE OR:FALSE
$keys = get_search_words(preg_split('/\s+/', $word, -1, PREG_SPLIT_NO_EMPTY));
foreach ($keys as $key=>$value)
$keys[$key] = '/' . $value . '/S';
$pages = get_existpages();
// Avoid
if ($base != '') {
$pages = preg_grep('/^' . preg_quote($base, '/') . '/S', $pages);
}
if (! $search_non_list) {
$pages = array_diff($pages, preg_grep('/' . $non_list . '/S', $pages));
}
$pages = array_flip($pages);
unset($pages[$whatsnew]);
$count = count($pages);
foreach (array_keys($pages) as $page) {
$b_match = FALSE;
// Search for page name
if (! $non_format) {
foreach ($keys as $key) {
$b_match = preg_match($key, $page);
if ($b_type xor $b_match) break; // OR
}
if ($b_match) continue;
}
// Search auth for page contents
if ($search_auth && ! check_readable($page, false, false)) {
unset($pages[$page]);
--$count;
continue;
}
// Search for page contents
foreach ($keys as $key) {
$body = get_source($page, TRUE, TRUE, TRUE);
$b_match = preg_match($key, remove_author_header($body));
if ($b_type xor $b_match) break; // OR
}
if ($b_match) continue;
unset($pages[$page]); // Miss
}
if ($non_format) return array_keys($pages);
$r_word = rawurlencode($word);
$s_word = htmlsc($word);
if (empty($pages))
return str_replace('$1', $s_word, str_replace('$3', $count, $_msg_notfoundresult));
ksort($pages, SORT_STRING);
$retval = '
' . "\n";
foreach (array_keys($pages) as $page) {
$r_page = rawurlencode($page);
$s_page = htmlsc($page);
$passage = $show_passage ? ' ' . get_passage_html_span($page) : '';
$retval .= ' - ' . $s_page .
'' . $passage . '
' . "\n";
}
$retval .= '
' . "\n";
$retval .= str_replace('$1', $s_word, str_replace('$2', count($pages),
str_replace('$3', $count, $b_type ? $_msg_andresult : $_msg_orresult)));
return $retval;
}
// Argument check for program
function arg_check($str)
{
global $vars;
return isset($vars['cmd']) && (strpos($vars['cmd'], $str) === 0);
}
function _pagename_urlencode_callback($matches)
{
return urlencode($matches[0]);
}
function pagename_urlencode($page)
{
return preg_replace_callback('|[^/:]+|', '_pagename_urlencode_callback', $page);
}
// Encode page-name
function encode($str)
{
$str = strval($str);
return ($str == '') ? '' : strtoupper(bin2hex($str));
// Equal to strtoupper(join('', unpack('H*0', $key)));
// But PHP 4.3.10 says 'Warning: unpack(): Type H: outside of string in ...'
}
// Decode page name
function decode($str)
{
return pkwk_hex2bin($str);
}
// Inversion of bin2hex()
function pkwk_hex2bin($hex_string)
{
// preg_match : Avoid warning : pack(): Type H: illegal hex digit ...
// (string) : Always treat as string (not int etc). See BugTrack2/31
return preg_match('/^[0-9a-f]+$/i', $hex_string) ?
pack('H*', (string)$hex_string) : $hex_string;
}
// Remove [[ ]] (brackets)
function strip_bracket($str)
{
$match = array();
if (preg_match('/^\[\[(.*)\]\]$/', $str, $match)) {
return $match[1];
} else {
return $str;
}
}
// Create list of pages
function page_list($pages, $cmd = 'read', $withfilename = FALSE)
{
global $list_index;
global $_msg_symbol, $_msg_other;
global $pagereading_enable;
$script = get_base_uri();
// ソートキーを決定する。 ' ' < '[a-zA-Z]' < 'zz'という前提。
$symbol = ' ';
$other = 'zz';
$retval = '';
if($pagereading_enable) {
mb_regex_encoding(SOURCE_ENCODING);
$readings = get_readings($pages);
}
$list = $matches = array();
// Shrink URI for read
if ($cmd == 'read') {
$href = $script . '?';
} else {
$href = $script . '?cmd=' . $cmd . '&page=';
}
uasort($pages, 'strnatcmp');
foreach($pages as $file=>$page) {
$r_page = pagename_urlencode($page);
$s_page = htmlsc($page, ENT_QUOTES);
$str = ' ' .
$s_page . ' ' . get_pg_passage($page);
if ($withfilename) {
$s_file = htmlsc($file);
$str .= "\n" . ' ' .
"\n" . ' ';
}
$str .= '';
// WARNING: Japanese code hard-wired
if($pagereading_enable) {
if(mb_ereg('^([A-Za-z])', mb_convert_kana($page, 'a'), $matches)) {
$head = strtoupper($matches[1]);
} elseif (isset($readings[$page]) && mb_ereg('^([ァ-ヶ])', $readings[$page], $matches)) { // here
$head = $matches[1];
} elseif (mb_ereg('^[ -~]|[^ぁ-ん亜-熙]', $page)) { // and here
$head = $symbol;
} else {
$head = $other;
}
} else {
$head = (preg_match('/^([A-Za-z])/', $page, $matches)) ? strtoupper($matches[1]) :
(preg_match('/^([ -~])/', $page) ? $symbol : $other);
}
$list[$head][$page] = $str;
}
uksort($list, 'strnatcmp');
$cnt = 0;
$arr_index = array();
$retval .= '' . "\n";
foreach ($list as $head=>$sub_pages) {
if ($head === $symbol) {
$head = $_msg_symbol;
} else if ($head === $other) {
$head = $_msg_other;
}
if ($list_index) {
++$cnt;
$arr_index[] = '' .
$head . '';
$retval .= ' - ' . $head . '' . "\n" .
'
' . "\n";
}
$retval .= join("\n", $sub_pages);
if ($list_index)
$retval .= "\n
\n \n";
}
$retval .= '
' . "\n";
if ($list_index && $cnt > 0) {
$top = array();
while (! empty($arr_index))
$top[] = join(' | ' . "\n", array_splice($arr_index, 0, 16)) . "\n";
$retval = '' . "\n" .
join('
', $top) . '
' . "\n" . $retval;
}
return $retval;
}
// Show text formatting rules
function catrule()
{
global $rule_page;
if (! is_page($rule_page)) {
return 'Sorry, page \'' . htmlsc($rule_page) .
'\' unavailable.
';
} else {
return convert_html(get_source($rule_page));
}
}
// Show (critical) error message
function die_message($msg)
{
$title = $page = 'Runtime error';
$body = <<Runtime error
Error message : $msg
EOD;
pkwk_common_headers();
if(defined('SKIN_FILE') && file_exists(SKIN_FILE) && is_readable(SKIN_FILE)) {
catbody($title, $page, $body);
} else {
$charset = 'utf-8';
if(defined('CONTENT_CHARSET')) {
$charset = CONTENT_CHARSET;
}
header("Content-Type: text/html; charset=$charset");
print <<
$title
$body
EOD;
}
exit;
}
// Have the time (as microtime)
function getmicrotime()
{
list($usec, $sec) = explode(' ', microtime());
return ((float)$sec + (float)$usec);
}
// Elapsed time by second
//define('MUTIME', getmicrotime());
function elapsedtime()
{
$at_the_microtime = MUTIME;
return sprintf('%01.03f', getmicrotime() - $at_the_microtime);
}
// Get the date
function get_date($format, $timestamp = NULL)
{
$format = preg_replace('/(?60, 'h'=>24, 'd'=>1);
$time = max(0, (UTIME - $time) / 60); // minutes
foreach ($units as $unit=>$card) {
if ($time < $card) break;
$time /= $card;
}
$time = floor($time) . $unit;
return $paren ? '(' . $time . ')' : $time;
}
// Hide
function drop_submit($str)
{
return preg_replace('/]+)type="(submit|button|image)"/i',
'read();
$ignorepages = $config->get('IgnoreList');
$forceignorepages = $config->get('ForceIgnoreList');
unset($config);
$auto_pages = array_merge($ignorepages, $forceignorepages);
foreach ($pages as $page) {
if (preg_match('/^' . $WikiName . '$/', $page) ?
$nowikiname : strlen($page) >= $min_length) {
$auto_pages[] = $page;
}
}
if (empty($auto_pages)) {
$result = $result_a = '(?!)';
} else {
$auto_pages = array_unique($auto_pages);
sort($auto_pages, SORT_STRING);
$auto_pages_a = array_values(preg_grep('/^[A-Z]+$/i', $auto_pages));
$auto_pages = array_values(array_diff($auto_pages, $auto_pages_a));
$result = get_autolink_pattern_sub($auto_pages, 0, count($auto_pages), 0);
$result_a = get_autolink_pattern_sub($auto_pages_a, 0, count($auto_pages_a), 0);
}
return array($result, $result_a, $forceignorepages);
}
function get_autolink_pattern_sub($pages, $start, $end, $pos)
{
if ($end == 0) return '(?!)';
$result = '';
$count = $i = $j = 0;
$x = (mb_strlen($pages[$start]) <= $pos);
if ($x) ++$start;
for ($i = $start; $i < $end; $i = $j) {
$char = mb_substr($pages[$i], $pos, 1);
for ($j = $i; $j < $end; $j++)
if (mb_substr($pages[$j], $pos, 1) != $char) break;
if ($i != $start) $result .= '|';
if ($i >= ($j - 1)) {
$result .= str_replace(' ', '\\ ', preg_quote(mb_substr($pages[$i], $pos), '/'));
} else {
$result .= str_replace(' ', '\\ ', preg_quote($char, '/')) .
get_autolink_pattern_sub($pages, $i, $j, $pos + 1);
}
++$count;
}
if ($x || $count > 1) $result = '(?:' . $result . ')';
if ($x) $result .= '?';
return $result;
}
// Get AutoAlias value
function get_autoalias_right_link($alias_name)
{
$pairs = get_autoaliases();
// A string: Seek the pair
if (isset($pairs[$alias_name])) {
return $pairs[$alias_name];
}
return '';
}
// Load setting pairs from AutoAliasName
function get_autoaliases()
{
global $aliaspage, $autoalias_max_words;
static $pairs;
if (! isset($pairs)) {
$pairs = array();
$pattern = << # (1) alias name
((?:(?!\]\]).)+) # (2) alias link
\]\] # close bracket
EOD;
$postdata = join('', get_source($aliaspage));
$matches = array();
$count = 0;
$max = max($autoalias_max_words, 0);
if (preg_match_all('/' . $pattern . '/x', $postdata, $matches, PREG_SET_ORDER)) {
foreach($matches as $key => $value) {
if ($count == $max) break;
$name = trim($value[1]);
if (! isset($pairs[$name])) {
++$count;
$pairs[$name] = trim($value[2]);
}
unset($matches[$key]);
}
}
}
return $pairs;
}
/**
* Get propery URI of this script
*
* @param $uri_type relative or absolute option
* PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
*/
function get_base_uri($uri_type = PKWK_URI_RELATIVE)
{
$base_type = pkwk_base_uri_type_stack_peek();
$type = max($base_type, $uri_type);
switch ($type) {
case PKWK_URI_RELATIVE:
return pkwk_script_uri_base(PKWK_URI_RELATIVE);
case PKWK_URI_ROOT:
return pkwk_script_uri_base(PKWK_URI_ROOT);
case PKWK_URI_ABSOLUTE:
return pkwk_script_uri_base(PKWK_URI_ABSOLUTE);
default:
die_message('Invalid uri_type in get_base_uri()');
}
}
/**
* Get URI of the page
*
* @param page page name
* @param $uri_type relative or absolute option
* PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
*/
function get_page_uri($page, $uri_type = PKWK_URI_RELATIVE)
{
global $defaultpage;
if ($page === $defaultpage) {
return get_base_uri($uri_type);
}
return get_base_uri($uri_type) . '?' . pagename_urlencode($page);
}
// Get absolute-URI of this script
function get_script_uri()
{
return get_base_uri(PKWK_URI_ABSOLUTE);
}
/**
* Get or initialize Script URI
*
* @param $uri_type relative or absolute potion
* PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
* @param $initialize true if you initialize URI
* @param $uri_set URI set manually
*/
function pkwk_script_uri_base($uri_type, $initialize = null, $uri_set = null)
{
global $script_directory_index;
static $initialized = false;
static $uri_absolute, $uri_root, $uri_relative;
if (! $initialized) {
if (isset($initialize) && $initialize) {
if (isset($uri_set)) {
$uri_absolute = $uri_set;
} else {
$uri_absolute = guess_script_absolute_uri();
}
// Support $script_directory_index (cut 'index.php')
if (isset($script_directory_index)) {
$slash_index = '/' . $script_directory_index;
$len = strlen($slash_index);
if (substr($uri_absolute, -1 * $len) === $slash_index) {
$uri_absolute = substr($uri_absolute, 0, strlen($uri_absolute) - $len + 1);
}
}
$elements = parse_url($uri_absolute);
$uri_root = $elements['path'];
if (substr($uri_root, -1) === '/') {
$uri_relative = './';
} else {
$pos = mb_strrpos($uri_root, '/');
if ($pos >= 0) {
$uri_relative = substr($uri_root, $pos + 1);
} else {
$uri_relative = $uri_root;
}
}
$initialized = true;
} else {
die_message('Script URI must be initialized in pkwk_script_uri_base()');
}
}
switch ($uri_type) {
case PKWK_URI_RELATIVE:
return $uri_relative;
case PKWK_URI_ROOT:
return $uri_root;
case PKWK_URI_ABSOLUTE:
return $uri_absolute;
default:
die_message('Invalid uri_type in pkwk_script_uri_base()');
}
}
/**
* Create uri_type context
*
* @param $uri_type relative or absolute option
* PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
*/
function pkwk_base_uri_type_stack_push($uri_type)
{
_pkwk_base_uri_type_stack(false, true, $uri_type);
}
/**
* Stop current active uri_type context
*/
function pkwk_base_uri_type_stack_pop()
{
_pkwk_base_uri_type_stack(false, false);
}
/**
* Get current active uri_type status
*/
function pkwk_base_uri_type_stack_peek()
{
$type = _pkwk_base_uri_type_stack(true, false);
if (is_null($type)) {
return PKWK_URI_RELATIVE;
} elseif ($type === PKWK_URI_ABSOLUTE) {
return PKWK_URI_ABSOLUTE;
} elseif ($type === PKWK_URI_ROOT) {
return PKWK_URI_ROOT;
} else {
return PKWK_URI_RELATIVE;
}
}
/**
* uri_type context internal function
*
* @param $peek is peek action or not
* @param $push push(true) or pop(false) on not peeking
* @param $uri_type uri_type on push and non-peeking
* @return $uri_type uri_type for peeking
*/
function _pkwk_base_uri_type_stack($peek, $push, $uri_type = null)
{
static $uri_types = array();
if ($peek) {
// Peek: get latest value
if (count($uri_types) === 0) {
return null;
} else {
return $uri_types[0];
}
} else {
if ($push) {
// Push $uri_type
if (count($uri_types) === 0) {
array_unshift($uri_types, $uri_type);
} else {
$prev_type = $uri_types[0];
if ($uri_type >= $prev_type) {
array_unshift($uri_types, $uri_type);
} else {
array_unshift($uri_types, $prev_type);
}
}
} else {
// Pop $uri_type
return array_shift($uri_types);
}
}
}
/**
* Guess Script Absolute URI.
*
* SERVER_PORT: $_SERVER['SERVER_PORT'] converted in init.php
* SERVER_NAME: $_SERVER['SERVER_NAME'] converted in init.php
*/
function guess_script_absolute_uri()
{
$port = SERVER_PORT;
$is_ssl = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on') ||
(isset($_SERVER['REQUEST_SCHEME']) && $_SERVER['REQUEST_SCHEME'] === 'https');
if ($is_ssl) {
$host = 'https://' . SERVER_NAME .
($port == 443 ? '' : ':' . $port);
} else {
$host = 'http://' . SERVER_NAME .
($port == 80 ? '' : ':' . $port);
}
$uri_elements = parse_url($host . $_SERVER['REQUEST_URI']);
return $host . $uri_elements['path'];
}
// Remove null(\0) bytes from variables
//
// NOTE: PHP had vulnerabilities that opens "hoge.php" via fopen("hoge.php\0.txt") etc.
// [PHP-users 12736] null byte attack
// http://ns1.php.gr.jp/pipermail/php-users/2003-January/012742.html
//
// 2003-05-16: magic quotes gpcの復元処理を統合
// 2003-05-21: 連想配列のキーはbinary safe
//
function input_filter($param)
{
static $magic_quotes_gpc = NULL;
if ($magic_quotes_gpc === NULL)
$magic_quotes_gpc = get_magic_quotes_gpc();
if (is_array($param)) {
return array_map('input_filter', $param);
} else {
$result = str_replace("\0", '', $param);
if ($magic_quotes_gpc) $result = stripslashes($result);
return $result;
}
}
// Compat for 3rd party plugins. Remove this later
function sanitize($param) {
return input_filter($param);
}
// Explode Comma-Separated Values to an array
function csv_explode($separator, $string)
{
$retval = $matches = array();
$_separator = preg_quote($separator, '/');
if (! preg_match_all('/("[^"]*(?:""[^"]*)*"|[^' . $_separator . ']*)' .
$_separator . '/', $string . $separator, $matches))
return array();
foreach ($matches[1] as $str) {
$len = strlen($str);
if ($len > 1 && $str{0} == '"' && $str{$len - 1} == '"')
$str = str_replace('""', '"', substr($str, 1, -1));
$retval[] = $str;
}
return $retval;
}
// Implode an array with CSV data format (escape double quotes)
function csv_implode($glue, $pieces)
{
$_glue = ($glue != '') ? '\\' . $glue{0} : '';
$arr = array();
foreach ($pieces as $str) {
if (preg_match('/[' . '"' . "\n\r" . $_glue . ']/', $str))
$str = '"' . str_replace('"', '""', $str) . '"';
$arr[] = $str;
}
return join($glue, $arr);
}
// Sugar with default settings
function htmlsc($string = '', $flags = ENT_COMPAT, $charset = CONTENT_CHARSET)
{
return htmlspecialchars($string, $flags, $charset); // htmlsc()
}
/**
* Get JSON string with htmlspecialchars().
*/
function htmlsc_json($obj)
{
// json_encode: PHP 5.2+
// JSON_UNESCAPED_UNICODE: PHP 5.4+
// JSON_UNESCAPED_SLASHES: PHP 5.4+
if (defined('JSON_UNESCAPED_UNICODE')) {
return htmlsc(json_encode($obj,
JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES));
}
return '';
}
/**
* Get redirect page name on Page Redirect Rules
*
* This function returns exactly false if it doesn't need redirection.
* So callers need check return value is false or not.
*
* @param $page page name
* @return new page name or false
*/
function get_pagename_on_redirect($page) {
global $page_redirect_rules;
foreach ($page_redirect_rules as $rule=>$replace) {
if (preg_match($rule, $page)) {
if (is_string($replace)) {
$new_page = preg_replace($rule, $replace, $page);
} elseif (is_object($replace) && is_callable($replace)) {
$new_page = preg_replace_callback($rule, $replace, $page);
} else {
die_message('Invalid redirect rule: ' . $rule . '=>' . $replace);
}
if ($page !== $new_page) {
return $new_page;
}
}
}
return false;
}
/**
* Redirect from an old page to new page
*
* This function returns true when a redirection occurs.
* So callers need check return value is false or true.
* And if it is true, then you have to exit PHP script.
*
* @return bool Inticates a redirection occurred or not
*/
function manage_page_redirect() {
global $vars;
if (isset($vars['page'])) {
$page = $vars['page'];
}
$new_page = get_pagename_on_redirect($page);
if ($new_page != false) {
header('Location: ' . get_page_uri($new_page, PKWK_URI_ROOT));
return TRUE;
}
return FALSE;
}
//// Compat ////
// is_a -- Returns TRUE if the object is of this class or has this class as one of its parents
// (PHP 4 >= 4.2.0)
if (! function_exists('is_a')) {
function is_a($class, $match)
{
if (empty($class)) return FALSE;
$class = is_object($class) ? get_class($class) : $class;
if (strtolower($class) == strtolower($match)) {
return TRUE;
} else {
return is_a(get_parent_class($class), $match); // Recurse
}
}
}
// array_fill -- Fill an array with values
// (PHP 4 >= 4.2.0)
if (! function_exists('array_fill')) {
function array_fill($start_index, $num, $value)
{
$ret = array();
while ($num-- > 0) $ret[$start_index++] = $value;
return $ret;
}
}
// md5_file -- Calculates the md5 hash of a given filename
// (PHP 4 >= 4.2.0)
if (! function_exists('md5_file')) {
function md5_file($filename)
{
if (! file_exists($filename)) return FALSE;
$fd = fopen($filename, 'rb');
if ($fd === FALSE ) return FALSE;
$data = fread($fd, filesize($filename));
fclose($fd);
return md5($data);
}
}
// sha1 -- Compute SHA-1 hash
// (PHP 4 >= 4.3.0, PHP5)
if (! function_exists('sha1')) {
if (extension_loaded('mhash')) {
function sha1($str)
{
return bin2hex(mhash(MHASH_SHA1, $str));
}
}
}