2 // PukiWiki - Yet another WikiWikiWeb clone.
5 // 2002-2022 PukiWiki Development Team
6 // 2001-2002 Originally written by yu-ji
7 // License: GPL v2 or (at your option) any later version
13 define('PKWK_URI_RELATIVE', 0);
14 /** Root relative URI. */
15 define('PKWK_URI_ROOT', 1);
17 define('PKWK_URI_ABSOLUTE', 2);
19 /** New page name - its length is need to be within the soft limit. */
20 define('PKWK_PAGENAME_BYTES_SOFT_LIMIT', 115);
21 /** Page name - its length is need to be within the hard limit. */
22 define('PKWK_PAGENAME_BYTES_HARD_LIMIT', 125);
24 function pkwk_log($message)
26 $log_filepath = 'log/error.log.php';
27 static $dateTimeExists;
28 if (!isset($dateTimeExists)) {
29 $dateTimeExists = class_exists('DateTime');
30 error_log("<?php\n", 3, $log_filepath);
32 if ($dateTimeExists) {
34 $d = \DateTime::createFromFormat('U.u', sprintf('%6F', microtime(true)));
35 $timestamp = substr($d->format('Y-m-d H:i:s.u'), 0, 23);
37 $timestamp = date('Y-m-d H:i:s');
39 error_log($timestamp . ' ' . $message . "\n", 3, $log_filepath);
43 * Get LTSV safe string - Remove tab and newline chars.
45 * @param $s target string
47 function get_ltsv_value($s) {
51 return preg_replace('#[\t\r\n]#', '', $s);
55 * Write update_log on updating contents.
57 * @param $page page name
58 * @param $diff_content diff expression
60 function pkwk_log_updates($page, $diff_content) {
61 global $auth_user, $logging_updates, $logging_updates_log_dir;
62 $log_dir = $logging_updates_log_dir;
64 $ymd = gmdate('Ymd', $timestamp);
65 $difflog_file = $log_dir . '/diff.' . $ymd . '.log';
66 $ltsv_file = $log_dir . '/update.' . $ymd . '.log';
68 'time' => gmdate('Y-m-d H:i:s', $timestamp),
69 'uri' => $_SERVER['REQUEST_URI'],
70 'method' => $_SERVER['REQUEST_METHOD'],
71 'remote_addr' => $_SERVER['REMOTE_ADDR'],
72 'user_agent' => $_SERVER['HTTP_USER_AGENT'],
75 'diff' => $diff_content
77 if (file_exists($log_dir) && defined('JSON_UNESCAPED_UNICODE')) {
79 $line = json_encode($d, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . "\n";
80 file_put_contents($difflog_file, $line, FILE_APPEND | LOCK_EX);
81 $keys = array('time', 'uri', 'method', 'remote_addr', 'user_agent',
84 foreach ($keys as $k) {
85 $ar2[] = $k . ':' . get_ltsv_value($d[$k]);
87 $ltsv = join($ar2, "\t") . "\n";
88 file_put_contents($ltsv_file, $ltsv, FILE_APPEND | LOCK_EX);
93 * ctype_digit that supports PHP4+.
95 * PHP official document says PHP4 has ctype_digit() function.
96 * But sometimes it doen't exists on PHP 4.1.
98 function pkwk_ctype_digit($s) {
99 static $ctype_digit_exists;
100 if (!isset($ctype_digit_exists)) {
101 $ctype_digit_exists = function_exists('ctype_digit');
103 if ($ctype_digit_exists) {
104 return ctype_digit($s);
106 return preg_match('/^[0-9]+$/', $s) ? true : false;
109 function is_interwiki($str)
111 global $InterWikiName;
112 return preg_match('/^' . $InterWikiName . '$/', $str);
115 function is_pagename($str)
119 $is_pagename = (! is_interwiki($str) &&
120 preg_match('/^(?!\/)' . $BracketName . '$(?<!\/$)/', $str) &&
121 ! preg_match('#(^|/)\.{1,2}(/|$)#', $str));
123 if (defined('SOURCE_ENCODING')) {
124 switch(SOURCE_ENCODING){
125 case 'UTF-8': $pattern =
126 '/^(?:[\x00-\x7F]|(?:[\xC0-\xDF][\x80-\xBF])|(?:[\xE0-\xEF][\x80-\xBF][\x80-\xBF]))+$/';
128 case 'EUC-JP': $pattern =
129 '/^(?:[\x00-\x7F]|(?:[\x8E\xA1-\xFE][\xA1-\xFE])|(?:\x8F[\xA1-\xFE][\xA1-\xFE]))+$/';
132 if (isset($pattern) && $pattern != '')
133 $is_pagename = ($is_pagename && preg_match($pattern, $str));
139 function is_url($str, $only_http = FALSE)
141 $scheme = $only_http ? 'https?' : 'https?|ftp|news';
142 return preg_match('/^(' . $scheme . ')(:\/\/[-_.!~*\'()a-zA-Z0-9;\/?:\@&=+\$,%#]*)$/', $str);
145 // If the page exists
146 function is_page($page, $clearcache = FALSE)
148 if ($clearcache) clearstatcache();
149 return file_exists(get_filename($page));
152 function is_pagename_bytes_within_soft_limit($page)
154 return strlen($page) <= PKWK_PAGENAME_BYTES_SOFT_LIMIT;
157 function is_pagename_bytes_within_hard_limit($page)
159 return strlen($page) <= PKWK_PAGENAME_BYTES_SOFT_LIMIT;
162 function page_exists_in_history($page)
164 if (is_page($page)) {
167 $diff_file = DIFF_DIR . encode($page) . '.txt';
168 if (file_exists($diff_file)) {
171 $backup_file = BACKUP_DIR . encode($page) . BACKUP_EXT;
172 if (file_exists($backup_file)) {
178 function is_editable($page)
181 static $is_editable = array();
183 if (! isset($is_editable[$page])) {
184 $is_editable[$page] = (
185 is_pagename($page) &&
186 ! is_freeze($page) &&
187 ! in_array($page, $cantedit)
191 return $is_editable[$page];
194 function is_freeze($page, $clearcache = FALSE)
196 global $function_freeze;
197 static $is_freeze = array();
199 if ($clearcache === TRUE) $is_freeze = array();
200 if (isset($is_freeze[$page])) return $is_freeze[$page];
202 if (! $function_freeze || ! is_page($page)) {
203 $is_freeze[$page] = FALSE;
206 $fp = fopen(get_filename($page), 'rb') or
207 die('is_freeze(): fopen() failed: ' . htmlsc($page));
208 flock($fp, LOCK_SH) or die('is_freeze(): flock() failed');
210 $buffer = fread($fp, 1000);
211 flock($fp, LOCK_UN) or die('is_freeze(): flock() failed');
212 fclose($fp) or die('is_freeze(): fclose() failed: ' . htmlsc($page));
213 $is_freeze[$page] = (bool) preg_match('/^#freeze$/m', $buffer);
214 return $is_freeze[$page];
218 // Handling $non_list
219 // $non_list will be preg_quote($str, '/') later.
220 function check_non_list($page = '')
225 if (! isset($regex)) $regex = '/' . $non_list . '/';
227 return preg_match($regex, $page);
231 function auto_template($page)
233 global $auto_template_func, $auto_template_rules;
235 if (! $auto_template_func) return '';
239 foreach ($auto_template_rules as $rule => $template) {
240 $rule_pattrn = '/' . $rule . '/';
242 if (! preg_match($rule_pattrn, $page, $matches)) continue;
244 $template_page = preg_replace($rule_pattrn, $template, $page);
245 if (! is_page($template_page)) continue;
247 $body = join('', get_source($template_page));
249 // Remove fixed-heading anchors
250 $body = preg_replace('/^(\*{1,3}.*)\[#[A-Za-z][\w-]+\](.*)$/m', '$1$2', $body);
253 $body = preg_replace('/^#freeze\s*$/m', '', $body);
255 $count = count($matches);
256 for ($i = 0; $i < $count; $i++)
257 $body = str_replace('$' . $i, $matches[$i], $body);
264 function _mb_convert_kana__enable($str, $option) {
265 return mb_convert_kana($str, $option, SOURCE_ENCODING);
267 function _mb_convert_kana__none($str, $option) {
271 // Expand all search-words to regexes and push them into an array
272 function get_search_words($words = array(), $do_escape = FALSE)
274 static $init, $mb_convert_kana, $pre, $post, $quote = '/';
276 if (! isset($init)) {
277 // function: mb_convert_kana() is for Japanese code only
278 if (LANG == 'ja' && function_exists('mb_convert_kana')) {
279 $mb_convert_kana = '_mb_convert_kana__enable';
281 $mb_convert_kana = '_mb_convert_kana__none';
283 if (SOURCE_ENCODING == 'EUC-JP') {
284 // Perl memo - Correct pattern-matching with EUC-JP
285 // http://www.din.or.jp/~ohzaki/perl.htm#JP_Match (Japanese)
287 $post = '(?=(?:[\xA1-\xFE][\xA1-\xFE])*' . // JIS X 0208
288 '(?:[\x00-\x7F\x8E\x8F]|\z))'; // ASCII, SS2, SS3, or the last
295 if (! is_array($words)) $words = array($words);
297 // Generate regex for the words
299 foreach ($words as $word) {
301 if ($word == '') continue;
303 // Normalize: ASCII letters = to single-byte. Others = to Zenkaku and Katakana
304 $word_nm = $mb_convert_kana($word, 'aKCV');
305 $nmlen = mb_strlen($word_nm, SOURCE_ENCODING);
307 // Each chars may be served ...
309 for ($pos = 0; $pos < $nmlen; $pos++) {
310 $char = mb_substr($word_nm, $pos, 1, SOURCE_ENCODING);
312 // Just normalized one? (ASCII char or Zenkaku-Katakana?)
313 $or = array(preg_quote($do_escape ? htmlsc($char) : $char, $quote));
314 if (strlen($char) == 1) {
315 // An ASCII (single-byte) character
316 foreach (array(strtoupper($char), strtolower($char)) as $_char) {
317 if ($char != '&') $or[] = preg_quote($_char, $quote); // As-is?
318 $ascii = ord($_char);
319 $or[] = sprintf('&#(?:%d|x%x);', $ascii, $ascii); // As an entity reference?
320 $or[] = preg_quote($mb_convert_kana($_char, 'A'), $quote); // As Zenkaku?
323 // NEVER COME HERE with mb_substr(string, start, length, 'ASCII')
324 // A multi-byte character
325 $or[] = preg_quote($mb_convert_kana($char, 'c'), $quote); // As Hiragana?
326 $or[] = preg_quote($mb_convert_kana($char, 'k'), $quote); // As Hankaku-Katakana?
328 $chars[] = '(?:' . join('|', array_unique($or)) . ')'; // Regex for the character
331 $regex[$word] = $pre . join('', $chars) . $post; // For the word
334 return $regex; // For all words
337 function get_passage_date_html_span($date_atom)
339 return '<span class="page_passage" data-mtime="' . $date_atom . '"></span>';
342 function get_passage_mtime_html_span($mtime)
344 $date_atom = get_date_atom($mtime);
345 return get_passage_date_html_span($date_atom);
349 * Get passage span html
353 function get_passage_html_span($page)
355 $date_atom = get_page_date_atom($page);
356 return get_passage_date_html_span($date_atom);
359 function get_link_passage_class() {
360 return 'link_page_passage';
364 * Get page link general attributes
366 * @return array('data_mtime' => page mtime or null, 'class' => additinal classes)
368 function get_page_link_a_attrs($page)
370 global $show_passage;
372 $pagemtime = get_page_date_atom($page);
374 'data_mtime' => $pagemtime,
375 'class' => get_link_passage_class(),
385 * Get page link general attributes from filetime
387 * @return array('data_mtime' => page mtime or null, 'class' => additinal classes)
389 function get_filetime_a_attrs($filetime)
391 global $show_passage;
393 $pagemtime = get_date_atom($filetime + LOCALZONE);
395 'data_mtime' => $pagemtime,
396 'class' => get_link_passage_class(),
405 // 'Search' main function
406 function do_search($word, $type = 'AND', $non_format = FALSE, $base = '')
408 global $whatsnew, $non_list, $search_non_list;
409 global $_msg_andresult, $_msg_orresult, $_msg_notfoundresult;
410 global $search_auth, $show_passage;
414 $b_type = ($type == 'AND'); // AND:TRUE OR:FALSE
415 $keys = get_search_words(preg_split('/\s+/', $word, -1, PREG_SPLIT_NO_EMPTY));
416 foreach ($keys as $key=>$value)
417 $keys[$key] = '/' . $value . '/S';
419 $pages = get_existpages();
423 $pages = preg_grep('/^' . preg_quote($base, '/') . '/S', $pages);
425 if (! $search_non_list) {
426 $pages = array_diff($pages, preg_grep('/' . $non_list . '/S', $pages));
428 $pages = array_flip($pages);
429 unset($pages[$whatsnew]);
431 $count = count($pages);
432 foreach (array_keys($pages) as $page) {
435 // Search for page name
437 foreach ($keys as $key) {
438 $b_match = preg_match($key, $page);
439 if ($b_type xor $b_match) break; // OR
441 if ($b_match) continue;
444 // Search auth for page contents
445 if ($search_auth && ! check_readable($page, false, false)) {
446 unset($pages[$page]);
451 // Search for page contents
452 foreach ($keys as $key) {
453 $body = get_source($page, TRUE, TRUE, TRUE);
454 $b_match = preg_match($key, remove_author_header($body));
455 if ($b_type xor $b_match) break; // OR
457 if ($b_match) continue;
459 unset($pages[$page]); // Miss
461 if ($non_format) return array_keys($pages);
463 $r_word = rawurlencode($word);
464 $s_word = htmlsc($word);
466 return str_replace('$1', $s_word, str_replace('$3', $count, $_msg_notfoundresult));
468 ksort($pages, SORT_STRING);
470 $retval = '<ul>' . "\n";
471 foreach (array_keys($pages) as $page) {
472 $r_page = rawurlencode($page);
473 $s_page = htmlsc($page);
474 $passage = $show_passage ? ' ' . get_passage_html_span($page) : '';
475 $retval .= ' <li><a href="' . get_base_uri() . '?cmd=read&page=' .
476 $r_page . '&word=' . $r_word . '">' . $s_page .
477 '</a>' . $passage . '</li>' . "\n";
479 $retval .= '</ul>' . "\n";
481 $retval .= str_replace('$1', $s_word, str_replace('$2', count($pages),
482 str_replace('$3', $count, $b_type ? $_msg_andresult : $_msg_orresult)));
487 // Argument check for program
488 function arg_check($str)
491 return isset($vars['cmd']) && (strpos($vars['cmd'], $str) === 0);
494 function _pagename_urlencode_callback($matches)
496 return urlencode($matches[0]);
499 function pagename_urlencode($page)
501 return preg_replace_callback('|[^/:]+|', '_pagename_urlencode_callback', $page);
505 function encode($str)
508 return ($str == '') ? '' : strtoupper(bin2hex($str));
509 // Equal to strtoupper(join('', unpack('H*0', $key)));
510 // But PHP 4.3.10 says 'Warning: unpack(): Type H: outside of string in ...'
514 function decode($str)
516 return pkwk_hex2bin($str);
519 // Inversion of bin2hex()
520 function pkwk_hex2bin($hex_string)
522 // preg_match : Avoid warning : pack(): Type H: illegal hex digit ...
523 // (string) : Always treat as string (not int etc). See BugTrack2/31
524 return preg_match('/^[0-9a-f]+$/i', $hex_string) ?
525 pack('H*', (string)$hex_string) : $hex_string;
528 // Remove [[ ]] (brackets)
529 function strip_bracket($str)
532 if (preg_match('/^\[\[(.*)\]\]$/', $str, $match)) {
539 // Create list of pages
540 function page_list($pages, $cmd = 'read', $withfilename = FALSE)
543 global $_msg_symbol, $_msg_other;
544 global $pagereading_enable;
546 $script = get_base_uri();
548 // ソートキーを決定する。 ' ' < '[a-zA-Z]' < 'zz'という前提。
554 if($pagereading_enable) {
555 mb_regex_encoding(SOURCE_ENCODING);
556 $readings = get_readings($pages);
558 $list = $matches = array();
559 uasort($pages, 'strnatcmp');
560 foreach($pages as $file=>$page) {
561 $s_page = htmlsc($page, ENT_QUOTES);
562 // Shrink URI for read
563 if ($cmd == 'read') {
564 $href = get_page_uri($page);
566 $href = $script . '?cmd=' . $cmd . '&page=' . rawurlencode($page);
568 $str = ' <li><a href="' . $href . '">' .
569 $s_page . '</a> ' . get_pg_passage($page);
571 $s_file = htmlsc($file);
572 $str .= "\n" . ' <ul><li>' . $s_file . '</li></ul>' .
577 // WARNING: Japanese code hard-wired
578 if($pagereading_enable) {
579 if(mb_ereg('^([A-Za-z])', mb_convert_kana($page, 'a'), $matches)) {
580 $head = strtoupper($matches[1]);
581 } elseif (isset($readings[$page]) && mb_ereg('^([ァ-ヶ])', $readings[$page], $matches)) { // here
583 } elseif (mb_ereg('^[ -~]|[^ぁ-ん亜-熙]', $page)) { // and here
589 $head = (preg_match('/^([A-Za-z])/', $page, $matches)) ? strtoupper($matches[1]) :
590 (preg_match('/^([ -~])/', $page) ? $symbol : $other);
592 $list[$head][$page] = $str;
594 uksort($list, 'strnatcmp');
597 $arr_index = array();
598 $retval .= '<ul>' . "\n";
599 foreach ($list as $head=>$sub_pages) {
600 if ($head === $symbol) {
601 $head = $_msg_symbol;
602 } else if ($head === $other) {
608 $arr_index[] = '<a id="top_' . $cnt .
609 '" href="#head_' . $cnt . '"><strong>' .
610 $head . '</strong></a>';
611 $retval .= ' <li><a id="head_' . $cnt . '" href="#top_' . $cnt .
612 '"><strong>' . $head . '</strong></a>' . "\n" .
615 $retval .= join("\n", $sub_pages);
617 $retval .= "\n </ul>\n </li>\n";
619 $retval .= '</ul>' . "\n";
620 if ($list_index && $cnt > 0) {
622 while (! empty($arr_index))
623 $top[] = join(' | ' . "\n", array_splice($arr_index, 0, 16)) . "\n";
625 $retval = '<div id="top" style="text-align:center">' . "\n" .
626 join('<br />', $top) . '</div>' . "\n" . $retval;
631 // Show text formatting rules
636 if (! is_page($rule_page)) {
637 return '<p>Sorry, page \'' . htmlsc($rule_page) .
638 '\' unavailable.</p>';
640 return convert_html(get_source($rule_page));
644 // Show (critical) error message
645 function die_message($msg)
647 $title = $page = 'Runtime error';
649 <h3>Runtime error</h3>
650 <strong>Error message : $msg</strong>
653 pkwk_common_headers();
654 if(defined('SKIN_FILE') && file_exists(SKIN_FILE) && is_readable(SKIN_FILE)) {
655 catbody($title, $page, $body);
658 if(defined('CONTENT_CHARSET')) {
659 $charset = CONTENT_CHARSET;
661 header("Content-Type: text/html; charset=$charset");
666 <meta http-equiv="content-type" content="text/html; charset=$charset">
667 <title>$title</title>
678 function die_invalid_pagename() {
680 $page = 'Error: Invlid page name';
683 <strong>Error message: Invalid page name</strong>
686 pkwk_common_headers();
687 header('HTTP/1.0 400 Bad request');
688 catbody($title, $page, $body);
693 // Have the time (as microtime)
694 function getmicrotime()
696 list($usec, $sec) = explode(' ', microtime());
697 return ((float)$sec + (float)$usec);
700 // Elapsed time by second
701 //define('MUTIME', getmicrotime());
702 function elapsedtime()
704 $at_the_microtime = MUTIME;
705 return sprintf('%01.03f', getmicrotime() - $at_the_microtime);
709 function get_date($format, $timestamp = NULL)
711 $format = preg_replace('/(?<!\\\)T/',
712 preg_replace('/(.)/', '\\\$1', ZONE), $format);
714 $time = ZONETIME + (($timestamp !== NULL) ? $timestamp : UTIME);
716 return date($format, $time);
719 // Format date string
720 function format_date($val, $paren = FALSE)
722 global $date_format, $time_format, $weeklabels;
726 $date = date($date_format, $val) .
727 ' (' . $weeklabels[date('w', $val)] . ') ' .
728 date($time_format, $val);
730 return $paren ? '(' . $date . ')' : $date;
734 * Format date in DATE_ATOM format.
736 function get_date_atom($timestamp)
738 // Compatible with DATE_ATOM format
739 // return date(DATE_ATOM, $timestamp);
740 $zmin = abs(LOCALZONE / 60);
741 return date('Y-m-d\TH:i:s', $timestamp) . sprintf('%s%02d:%02d',
742 (LOCALZONE < 0 ? '-' : '+') , $zmin / 60, $zmin % 60);
745 // Get short string of the passage, 'N seconds/minutes/hours/days/years ago'
746 function get_passage($time, $paren = TRUE)
748 static $units = array('m'=>60, 'h'=>24, 'd'=>1);
750 $time = max(0, (UTIME - $time) / 60); // minutes
752 foreach ($units as $unit=>$card) {
753 if ($time < $card) break;
756 $time = floor($time) . $unit;
758 return $paren ? '(' . $time . ')' : $time;
761 // Hide <input type="(submit|button|image)"...>
762 function drop_submit($str)
764 return preg_replace('/<input([^>]+)type="(submit|button|image)"/i',
765 '<input$1type="hidden"', $str);
768 // Generate AutoLink patterns (thx to hirofummy)
769 function get_autolink_pattern($pages, $min_length)
771 global $WikiName, $nowikiname;
773 $config = new Config('AutoLink');
775 $ignorepages = $config->get('IgnoreList');
776 $forceignorepages = $config->get('ForceIgnoreList');
778 $auto_pages = array_merge($ignorepages, $forceignorepages);
780 foreach ($pages as $page) {
781 if (preg_match('/^' . $WikiName . '$/', $page) ?
782 $nowikiname : strlen($page) >= $min_length) {
783 $auto_pages[] = $page;
786 if (empty($auto_pages)) {
787 $result = $result_a = '(?!)';
789 $auto_pages = array_unique($auto_pages);
790 sort($auto_pages, SORT_STRING);
792 $auto_pages_a = array_values(preg_grep('/^[A-Z]+$/i', $auto_pages));
793 $auto_pages = array_values(array_diff($auto_pages, $auto_pages_a));
795 $result = get_autolink_pattern_sub($auto_pages, 0, count($auto_pages), 0);
796 $result_a = get_autolink_pattern_sub($auto_pages_a, 0, count($auto_pages_a), 0);
798 return array($result, $result_a, $forceignorepages);
801 function get_autolink_pattern_sub($pages, $start, $end, $pos)
803 if ($end == 0) return '(?!)';
806 $count = $i = $j = 0;
807 $x = (mb_strlen($pages[$start]) <= $pos);
810 for ($i = $start; $i < $end; $i = $j) {
811 $char = mb_substr($pages[$i], $pos, 1);
812 for ($j = $i; $j < $end; $j++)
813 if (mb_substr($pages[$j], $pos, 1) != $char) break;
815 if ($i != $start) $result .= '|';
816 if ($i >= ($j - 1)) {
817 $result .= str_replace(' ', '\\ ', preg_quote(mb_substr($pages[$i], $pos), '/'));
819 $result .= str_replace(' ', '\\ ', preg_quote($char, '/')) .
820 get_autolink_pattern_sub($pages, $i, $j, $pos + 1);
824 if ($x || $count > 1) $result = '(?:' . $result . ')';
825 if ($x) $result .= '?';
830 // Get AutoAlias value
831 function get_autoalias_right_link($alias_name)
833 $pairs = get_autoaliases();
834 // A string: Seek the pair
835 if (isset($pairs[$alias_name])) {
836 return $pairs[$alias_name];
841 // Load setting pairs from AutoAliasName
842 function get_autoaliases()
844 global $aliaspage, $autoalias_max_words;
846 $preg_u = get_preg_u();
848 if (! isset($pairs)) {
852 ((?:(?!\]\]).)+)> # (1) alias name
853 ((?:(?!\]\]).)+) # (2) alias link
856 $postdata = join('', get_source($aliaspage));
859 $max = max($autoalias_max_words, 0);
860 if (preg_match_all('/' . $pattern . '/x' . get_preg_u(), $postdata,
861 $matches, PREG_SET_ORDER)) {
862 foreach($matches as $key => $value) {
863 if ($count == $max) break;
864 $name = trim($value[1]);
865 if (! isset($pairs[$name])) {
867 $pairs[$name] = trim($value[2]);
869 unset($matches[$key]);
877 * Get propery URI of this script
879 * @param $uri_type relative or absolute option
880 * PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
882 function get_base_uri($uri_type = PKWK_URI_RELATIVE)
884 $base_type = pkwk_base_uri_type_stack_peek();
885 $type = max($base_type, $uri_type);
887 case PKWK_URI_RELATIVE:
888 return pkwk_script_uri_base(PKWK_URI_RELATIVE);
890 return pkwk_script_uri_base(PKWK_URI_ROOT);
891 case PKWK_URI_ABSOLUTE:
892 return pkwk_script_uri_base(PKWK_URI_ABSOLUTE);
894 die_message('Invalid uri_type in get_base_uri()');
899 * Get URI of the page
901 * @param page page name
902 * @param $uri_type relative or absolute option
903 * PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
905 function get_page_uri($page, $uri_type = PKWK_URI_RELATIVE)
907 global $page_uri_handler, $defaultpage;
908 if ($page === $defaultpage) {
909 return get_base_uri($uri_type);
911 return get_base_uri($uri_type) . $page_uri_handler->get_page_uri_virtual_query($page);
914 // Get absolute-URI of this script
915 function get_script_uri()
917 return get_base_uri(PKWK_URI_ABSOLUTE);
921 * Get or initialize Script URI
923 * @param $uri_type relative or absolute potion
924 * PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
925 * @param $initialize true if you initialize URI
926 * @param $uri_set URI set manually
928 function pkwk_script_uri_base($uri_type, $initialize = null, $uri_set = null)
930 global $script_directory_index;
931 static $initialized = false;
932 static $uri_absolute, $uri_root, $uri_relative;
933 if (! $initialized) {
934 if (isset($initialize) && $initialize) {
935 if (isset($uri_set)) {
936 $uri_absolute = $uri_set;
938 $uri_absolute = guess_script_absolute_uri();
940 // Support $script_directory_index (cut 'index.php')
941 if (isset($script_directory_index)) {
942 $slash_index = '/' . $script_directory_index;
943 $len = strlen($slash_index);
944 if (substr($uri_absolute, -1 * $len) === $slash_index) {
945 $uri_absolute = substr($uri_absolute, 0, strlen($uri_absolute) - $len + 1);
948 $elements = parse_url($uri_absolute);
949 $uri_root = $elements['path'];
950 if (substr($uri_root, -1) === '/') {
951 $uri_relative = './';
953 $pos = mb_strrpos($uri_root, '/');
955 $uri_relative = substr($uri_root, $pos + 1);
957 $uri_relative = $uri_root;
962 die_message('Script URI must be initialized in pkwk_script_uri_base()');
966 case PKWK_URI_RELATIVE:
967 return $uri_relative;
970 case PKWK_URI_ABSOLUTE:
971 return $uri_absolute;
973 die_message('Invalid uri_type in pkwk_script_uri_base()');
978 * Create uri_type context
980 * @param $uri_type relative or absolute option
981 * PKWK_URI_RELATIVE, PKWK_URI_ROOT or PKWK_URI_ABSOLUTE
983 function pkwk_base_uri_type_stack_push($uri_type)
985 _pkwk_base_uri_type_stack(false, true, $uri_type);
989 * Stop current active uri_type context
991 function pkwk_base_uri_type_stack_pop()
993 _pkwk_base_uri_type_stack(false, false);
997 * Get current active uri_type status
999 function pkwk_base_uri_type_stack_peek()
1001 $type = _pkwk_base_uri_type_stack(true, false);
1002 if (is_null($type)) {
1003 return PKWK_URI_RELATIVE;
1004 } elseif ($type === PKWK_URI_ABSOLUTE) {
1005 return PKWK_URI_ABSOLUTE;
1006 } elseif ($type === PKWK_URI_ROOT) {
1007 return PKWK_URI_ROOT;
1009 return PKWK_URI_RELATIVE;
1014 * uri_type context internal function
1016 * @param $peek is peek action or not
1017 * @param $push push(true) or pop(false) on not peeking
1018 * @param $uri_type uri_type on push and non-peeking
1019 * @return $uri_type uri_type for peeking
1021 function _pkwk_base_uri_type_stack($peek, $push, $uri_type = null)
1023 static $uri_types = array();
1025 // Peek: get latest value
1026 if (count($uri_types) === 0) {
1029 return $uri_types[0];
1034 if (count($uri_types) === 0) {
1035 array_unshift($uri_types, $uri_type);
1037 $prev_type = $uri_types[0];
1038 if ($uri_type >= $prev_type) {
1039 array_unshift($uri_types, $uri_type);
1041 array_unshift($uri_types, $prev_type);
1046 return array_shift($uri_types);
1052 * Guess Script Absolute URI.
1054 * SERVER_PORT: $_SERVER['SERVER_PORT'] converted in init.php
1055 * SERVER_NAME: $_SERVER['SERVER_NAME'] converted in init.php
1057 function guess_script_absolute_uri()
1059 $port = SERVER_PORT;
1060 $is_ssl = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on') ||
1061 (isset($_SERVER['REQUEST_SCHEME']) && $_SERVER['REQUEST_SCHEME'] === 'https');
1063 $host = 'https://' . SERVER_NAME .
1064 ($port == 443 ? '' : ':' . $port);
1066 $host = 'http://' . SERVER_NAME .
1067 ($port == 80 ? '' : ':' . $port);
1069 $uri_elements = parse_url($host . $_SERVER['REQUEST_URI']);
1070 return $host . $uri_elements['path'];
1073 // Remove null(\0) bytes from variables
1075 // NOTE: PHP had vulnerabilities that opens "hoge.php" via fopen("hoge.php\0.txt") etc.
1076 // [PHP-users 12736] null byte attack
1077 // http://ns1.php.gr.jp/pipermail/php-users/2003-January/012742.html
1079 // 2003-05-16: magic quotes gpcの復元処理を統合
1080 // 2003-05-21: 連想配列のキーはbinary safe
1082 function input_filter($param)
1084 static $magic_quotes_gpc = NULL;
1085 if ($magic_quotes_gpc === NULL) {
1086 if (function_exists('get_magic_quotes_gpc')) {
1087 // No 'get_magic_quotes_gpc' function in PHP8
1088 $magic_quotes_gpc = get_magic_quotes_gpc();
1090 $magic_quotes_gpc = 0;
1093 if (is_array($param)) {
1094 return array_map('input_filter', $param);
1096 $result = str_replace("\0", '', $param);
1097 if ($magic_quotes_gpc) $result = stripslashes($result);
1102 // Compat for 3rd party plugins. Remove this later
1103 function sanitize($param) {
1104 return input_filter($param);
1107 // Explode Comma-Separated Values to an array
1108 function csv_explode($separator, $string)
1110 $retval = $matches = array();
1112 $_separator = preg_quote($separator, '/');
1113 if (! preg_match_all('/("[^"]*(?:""[^"]*)*"|[^' . $_separator . ']*)' .
1114 $_separator . '/', $string . $separator, $matches))
1117 foreach ($matches[1] as $str) {
1118 $len = strlen($str);
1119 if ($len > 1 && $str[0] == '"' && $str[$len - 1] == '"')
1120 $str = str_replace('""', '"', substr($str, 1, -1));
1126 // Implode an array with CSV data format (escape double quotes)
1127 function csv_implode($glue, $pieces)
1129 $_glue = ($glue != '') ? '\\' . $glue[0] : '';
1131 foreach ($pieces as $str) {
1132 if (preg_match('/[' . '"' . "\n\r" . $_glue . ']/', $str))
1133 $str = '"' . str_replace('"', '""', $str) . '"';
1136 return join($glue, $arr);
1139 // Sugar with default settings
1140 function htmlsc($string = '', $flags = ENT_COMPAT, $charset = CONTENT_CHARSET)
1142 return htmlspecialchars($string, $flags, $charset); // htmlsc()
1146 * Get JSON string with htmlspecialchars().
1148 function htmlsc_json($obj)
1150 // json_encode: PHP 5.2+
1151 // JSON_UNESCAPED_UNICODE: PHP 5.4+
1152 // JSON_UNESCAPED_SLASHES: PHP 5.4+
1153 if (defined('JSON_UNESCAPED_UNICODE')) {
1154 return htmlsc(json_encode($obj,
1155 JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES));
1161 * Get redirect page name on Page Redirect Rules
1163 * This function returns exactly false if it doesn't need redirection.
1164 * So callers need check return value is false or not.
1166 * @param $page page name
1167 * @return new page name or false
1169 function get_pagename_on_redirect($page) {
1170 global $page_redirect_rules;
1171 foreach ($page_redirect_rules as $rule=>$replace) {
1172 if (preg_match($rule, $page)) {
1173 if (is_string($replace)) {
1174 $new_page = preg_replace($rule, $replace, $page);
1175 } elseif (is_object($replace) && is_callable($replace)) {
1176 $new_page = preg_replace_callback($rule, $replace, $page);
1178 die_message('Invalid redirect rule: ' . $rule . '=>' . $replace);
1180 if ($page !== $new_page) {
1189 * Redirect from an old page to new page
1191 * This function returns true when a redirection occurs.
1192 * So callers need check return value is false or true.
1193 * And if it is true, then you have to exit PHP script.
1195 * @return bool Inticates a redirection occurred or not
1197 function manage_page_redirect() {
1199 if (isset($vars['page'])) {
1200 $page = $vars['page'];
1202 $new_page = get_pagename_on_redirect($page);
1203 if ($new_page != false) {
1204 header('Location: ' . get_page_uri($new_page, PKWK_URI_ROOT));
1211 * Return 'u' (PCRE_UTF8) if PHP7+ and UTF-8.
1213 function get_preg_u() {
1214 static $utf8u; // 'u'(PCRE_UTF8) or ''
1215 if (! isset($utf8u)) {
1216 if (version_compare('7.0.0', PHP_VERSION, '<=')
1217 && defined('PKWK_UTF8_ENABLE')) {
1226 // Default Page name - URI mapping handler
1227 class PukiWikiStandardPageURIHandler {
1228 function filter_raw_query_string($query_string) {
1229 return $query_string;
1232 function get_page_uri_virtual_query($page) {
1233 return '?' . pagename_urlencode($page);
1236 function get_page_from_query_string($query_string) {
1237 $param1st = preg_replace("#^([^&]*)&.*$#", "$1", $query_string);
1238 if ($param1st == '') {
1239 return null; // default page
1241 if (strpos($param1st, '=') !== FALSE) {
1242 // Found '/?key=value' (Top page with additional query params)
1243 return null; // default page
1245 $page = urldecode($param1st);
1246 $page2 = input_filter($page);
1247 if ($page !== $page2) {
1248 return FALSE; // Error page
1256 // is_a -- Returns TRUE if the object is of this class or has this class as one of its parents
1258 if (! function_exists('is_a')) {
1260 function is_a($class, $match)
1262 if (empty($class)) return FALSE;
1264 $class = is_object($class) ? get_class($class) : $class;
1265 if (strtolower($class) == strtolower($match)) {
1268 return is_a(get_parent_class($class), $match); // Recurse
1273 // array_fill -- Fill an array with values
1275 if (! function_exists('array_fill')) {
1277 function array_fill($start_index, $num, $value)
1280 while ($num-- > 0) $ret[$start_index++] = $value;
1285 // md5_file -- Calculates the md5 hash of a given filename
1287 if (! function_exists('md5_file')) {
1289 function md5_file($filename)
1291 if (! file_exists($filename)) return FALSE;
1293 $fd = fopen($filename, 'rb');
1294 if ($fd === FALSE ) return FALSE;
1295 $data = fread($fd, filesize($filename));
1301 // sha1 -- Compute SHA-1 hash
1302 // (PHP 4 >= 4.3.0, PHP5)
1303 if (! function_exists('sha1')) {
1304 if (extension_loaded('mhash')) {
1307 return bin2hex(mhash(MHASH_SHA1, $str));