// PukiWiki - Yet another WikiWikiWeb clone.
// func.php
// Copyright
-// 2002-2016 PukiWiki Development Team
+// 2002-2021 PukiWiki Development Team
// 2001-2002 Originally written by yu-ji
// License: GPL v2 or (at your option) any later version
//
// General functions
+// URI type enum
+/** Relative path. */
+define('PKWK_URI_RELATIVE', 0);
+/** Root relative URI. */
+define('PKWK_URI_ROOT', 1);
+/** Absolute URI. */
+define('PKWK_URI_ABSOLUTE', 2);
+
+function pkwk_log($message)
+{
+ $log_filepath = 'log/error.log.php';
+ static $dateTimeExists;
+ if (!isset($dateTimeExists)) {
+ $dateTimeExists = class_exists('DateTime');
+ error_log("<?php\n", 3, $log_filepath);
+ }
+ if ($dateTimeExists) {
+ // for PHP5.2+
+ $d = \DateTime::createFromFormat('U.u', sprintf('%6F', microtime(true)));
+ $timestamp = substr($d->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 $InterWikiName;
die('is_freeze(): fopen() failed: ' . htmlsc($page));
flock($fp, LOCK_SH) or die('is_freeze(): flock() failed');
rewind($fp);
- $buffer = fgets($fp, 9);
+ $buffer = fread($fp, 1000);
flock($fp, LOCK_UN) or die('is_freeze(): flock() failed');
fclose($fp) or die('is_freeze(): fclose() failed: ' . htmlsc($page));
-
- $is_freeze[$page] = ($buffer != FALSE && rtrim($buffer, "\r\n") == '#freeze');
+ $is_freeze[$page] = (bool) preg_match('/^#freeze$/m', $buffer);
return $is_freeze[$page];
}
}
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(), $do_escape = FALSE)
{
if (! isset($init)) {
// function: mb_convert_kana() is for Japanese code only
if (LANG == 'ja' && function_exists('mb_convert_kana')) {
- $mb_convert_kana = create_function('$str, $option',
- 'return mb_convert_kana($str, $option, SOURCE_ENCODING);');
+ $mb_convert_kana = '_mb_convert_kana__enable';
} else {
- $mb_convert_kana = create_function('$str, $option',
- 'return $str;');
+ $mb_convert_kana = '_mb_convert_kana__none';
}
if (SOURCE_ENCODING == 'EUC-JP') {
// Perl memo - Correct pattern-matching with EUC-JP
return $regex; // For all words
}
+function get_passage_date_html_span($date_atom)
+{
+ return '<span class="page_passage" data-mtime="' . $date_atom . '"></span>';
+}
+
+function get_passage_mtime_html_span($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 $script, $whatsnew, $non_list, $search_non_list;
+ global $whatsnew, $non_list, $search_non_list;
global $_msg_andresult, $_msg_orresult, $_msg_notfoundresult;
global $search_auth, $show_passage;
if ($search_auth && ! check_readable($page, false, false)) {
unset($pages[$page]);
--$count;
+ continue;
}
// Search for page contents
foreach ($keys as $key) {
- $b_match = preg_match($key, get_source($page, TRUE, TRUE));
+ $body = get_source($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;
$r_word = rawurlencode($word);
$s_word = htmlsc($word);
if (empty($pages))
- return str_replace('$1', $s_word, $_msg_notfoundresult);
+ return str_replace('$1', $s_word, str_replace('$3', $count, $_msg_notfoundresult));
ksort($pages, SORT_STRING);
foreach (array_keys($pages) as $page) {
$r_page = rawurlencode($page);
$s_page = htmlsc($page);
- $passage = $show_passage ? ' ' . get_passage(get_filetime($page)) : '';
- $retval .= ' <li><a href="' . $script . '?cmd=read&page=' .
+ $passage = $show_passage ? ' ' . get_passage_html_span($page) : '';
+ $retval .= ' <li><a href="' . get_base_uri() . '?cmd=read&page=' .
$r_page . '&word=' . $r_word . '">' . $s_page .
'</a>' . $passage . '</li>' . "\n";
}
function _pagename_urlencode_callback($matches)
{
- return rawurlencode($matches[0]);
+ return urlencode($matches[0]);
}
function pagename_urlencode($page)
// Create list of pages
function page_list($pages, $cmd = 'read', $withfilename = FALSE)
{
- global $script, $list_index;
+ 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';
} 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);
- $passage = get_pg_passage($page);
-
$str = ' <li><a href="' . $href . $r_page . '">' .
- $s_page . '</a>' . $passage;
-
+ $s_page . '</a> ' . get_pg_passage($page);
if ($withfilename) {
$s_file = htmlsc($file);
$str .= "\n" . ' <ul><li>' . $s_file . '</li></ul>' .
$head = (preg_match('/^([A-Za-z])/', $page, $matches)) ? strtoupper($matches[1]) :
(preg_match('/^([ -~])/', $page) ? $symbol : $other);
}
-
$list[$head][$page] = $str;
}
- uksort($pages, 'strnatcmp');
+ uksort($list, 'strnatcmp');
$cnt = 0;
$arr_index = array();
$retval .= '<ul>' . "\n";
- foreach ($list as $head=>$pages) {
+ foreach ($list as $head=>$sub_pages) {
if ($head === $symbol) {
$head = $_msg_symbol;
} else if ($head === $other) {
'"><strong>' . $head . '</strong></a>' . "\n" .
' <ul>' . "\n";
}
- ksort($pages, SORT_STRING);
- $retval .= join("\n", $pages);
+ $retval .= join("\n", $sub_pages);
if ($list_index)
$retval .= "\n </ul>\n </li>\n";
}
return $paren ? '(' . $date . ')' : $date;
}
+/**
+ * Format date in DATE_ATOM format.
+ */
+function get_date_atom($timestamp)
+{
+ // Compatible with DATE_ATOM format
+ // return date(DATE_ATOM, $timestamp);
+ $zmin = abs(LOCALZONE / 60);
+ return date('Y-m-d\TH:i:s', $timestamp) . sprintf('%s%02d:%02d',
+ (LOCALZONE < 0 ? '-' : '+') , $zmin / 60, $zmin % 60);
+}
+
// Get short string of the passage, 'N seconds/minutes/hours/days/years ago'
function get_passage($time, $paren = TRUE)
{
}
// Generate AutoLink patterns (thx to hirofummy)
-function get_autolink_pattern(& $pages)
+function get_autolink_pattern($pages, $min_length)
{
- global $WikiName, $autolink, $nowikiname;
+ global $WikiName, $nowikiname;
$config = new Config('AutoLink');
$config->read();
unset($config);
$auto_pages = array_merge($ignorepages, $forceignorepages);
- foreach ($pages as $page)
+ foreach ($pages as $page) {
if (preg_match('/^' . $WikiName . '$/', $page) ?
- $nowikiname : strlen($page) >= $autolink)
+ $nowikiname : strlen($page) >= $min_length) {
$auto_pages[] = $page;
-
+ }
+ }
if (empty($auto_pages)) {
- $result = $result_a = $nowikiname ? '(?!)' : $WikiName;
+ $result = $result_a = '(?!)';
} else {
$auto_pages = array_unique($auto_pages);
sort($auto_pages, SORT_STRING);
return array($result, $result_a, $forceignorepages);
}
-function get_autolink_pattern_sub(& $pages, $start, $end, $pos)
+function get_autolink_pattern_sub($pages, $start, $end, $pos)
{
if ($end == 0) return '(?!)';
return $result;
}
-// Get absolute-URI of this script
-function get_script_uri($init_uri = '')
+// Get AutoAlias value
+function get_autoalias_right_link($alias_name)
{
- global $script_directory_index;
- static $script;
-
- if ($init_uri == '') {
- // Get
- if (isset($script)) return $script;
+ $pairs = get_autoaliases();
+ // A string: Seek the pair
+ if (isset($pairs[$alias_name])) {
+ return $pairs[$alias_name];
+ }
+ return '';
+}
- // Set automatically
- $msg = 'get_script_uri() failed: Please set $script at INI_FILE manually';
+// Load setting pairs from AutoAliasName
+function get_autoaliases()
+{
+ global $aliaspage, $autoalias_max_words;
+ static $pairs;
+ $preg_u = get_preg_u();
+
+ if (! isset($pairs)) {
+ $pairs = array();
+ $pattern = <<<EOD
+\[\[ # open bracket
+((?:(?!\]\]).)+)> # (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' . get_preg_u(), $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;
+}
- $script = (SERVER_PORT == 443 ? 'https://' : 'http://'); // scheme
- $script .= SERVER_NAME; // host
- $script .= (SERVER_PORT == 80 ? '' : ':' . SERVER_PORT); // port
+/**
+ * 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()');
+ }
+}
- // SCRIPT_NAME が'/'で始まっていない場合(cgiなど) REQUEST_URIを使ってみる
- $path = SCRIPT_NAME;
- if ($path{0} != '/') {
- if (! isset($_SERVER['REQUEST_URI']) || $_SERVER['REQUEST_URI']{0} != '/')
- die_message($msg);
+/**
+ * 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);
+}
- // REQUEST_URIをパースし、path部分だけを取り出す
- $parse_url = parse_url($script . $_SERVER['REQUEST_URI']);
- if (! isset($parse_url['path']) || $parse_url['path']{0} != '/')
- die_message($msg);
+// Get absolute-URI of this script
+function get_script_uri()
+{
+ return get_base_uri(PKWK_URI_ABSOLUTE);
+}
- $path = $parse_url['path'];
+/**
+ * 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()');
}
- $script .= $path;
+ }
+ switch ($uri_type) {
+ case PKWK_URI_RELATIVE:
+ return $uri_relative;
+ case PKWK_URI_ROOT:
+ return $uri_root;
+ case PKWK_URI_ABSOLUTE:
+ return $uri_absolute;
+ default:
+ die_message('Invalid uri_type in pkwk_script_uri_base()');
+ }
+}
- if (! is_url($script, TRUE) && php_sapi_name() == 'cgi')
- die_message($msg);
- unset($msg);
+/**
+ * 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 {
- // Set manually
- if (isset($script)) die_message('$script: Already init');
- if (! is_url($init_uri, TRUE)) die_message('$script: Invalid URI');
- $script = $init_uri;
+ return PKWK_URI_RELATIVE;
}
+}
- // Cut filename or not
- if (isset($script_directory_index)) {
- if (! file_exists($script_directory_index))
- die_message('Directory index file not found: ' .
- htmlsc($script_directory_index));
- $matches = array();
- if (preg_match('#^(.+/)' . preg_quote($script_directory_index, '#') . '$#',
- $script, $matches)) $script = $matches[1];
+/**
+ * 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);
+ }
}
+}
- return $script;
+/**
+ * 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 . $uri_elements['path'];
}
// Remove null(\0) bytes from variables
function input_filter($param)
{
static $magic_quotes_gpc = NULL;
- if ($magic_quotes_gpc === NULL)
- $magic_quotes_gpc = get_magic_quotes_gpc();
-
+ if ($magic_quotes_gpc === NULL) {
+ if (function_exists('get_magic_quotes_gpc')) {
+ // No 'get_magic_quotes_gpc' function in PHP8
+ $magic_quotes_gpc = get_magic_quotes_gpc();
+ } else {
+ $magic_quotes_gpc = 0;
+ }
+ }
if (is_array($param)) {
return array_map('input_filter', $param);
} else {
foreach ($matches[1] as $str) {
$len = strlen($str);
- if ($len > 1 && $str{0} == '"' && $str{$len - 1} == '"')
+ if ($len > 1 && $str[0] == '"' && $str[$len - 1] == '"')
$str = str_replace('""', '"', substr($str, 1, -1));
$retval[] = $str;
}
// Implode an array with CSV data format (escape double quotes)
function csv_implode($glue, $pieces)
{
- $_glue = ($glue != '') ? '\\' . $glue{0} : '';
+ $_glue = ($glue != '') ? '\\' . $glue[0] : '';
$arr = array();
foreach ($pieces as $str) {
if (preg_match('/[' . '"' . "\n\r" . $_glue . ']/', $str))
return htmlspecialchars($string, $flags, $charset); // htmlsc()
}
-// Redirect from an old page to new page
+/**
+ * Get JSON string with htmlspecialchars().
+ */
+function htmlsc_json($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 $page_redirect_rules, $vars;
+ global $vars;
if (isset($vars['page'])) {
$page = $vars['page'];
- foreach ($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 . '=>' . $replace);
- }
- header('Location: ' . get_script_uri() . '?' .
- pagename_urlencode($new_page));
- return TRUE;
- }
- }
+ }
+ $new_page = get_pagename_on_redirect($page);
+ if ($new_page != false) {
+ header('Location: ' . get_page_uri($new_page, PKWK_URI_ROOT));
+ return TRUE;
}
return FALSE;
}
+/**
+ * Return 'u' (PCRE_UTF8) if PHP7+ and UTF-8.
+ */
+function get_preg_u() {
+ static $utf8u; // 'u'(PCRE_UTF8) or ''
+ if (! isset($utf8u)) {
+ if (version_compare('7.0.0', PHP_VERSION, '<=')
+ && defined('PKWK_UTF8_ENABLE')) {
+ $utf8u = 'u';
+ } else {
+ $utf8u = '';
+ }
+ }
+ return $utf8u;
+}
//// Compat ////
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