/lib/func.php
PHP | 921 lines | 677 code | 126 blank | 118 comment | 148 complexity | 37a3d1de271f4715567014db8a19b81b MD5 | raw file
Possible License(s): GPL-2.0
- <?php
- // PukiWiki - Yet another WikiWikiWeb clone.
- // $Id: func.php,v 1.104 2011/01/25 15:01:01 henoheno Exp $
- // Copyright (C)
- // 2002-2007,2009-2010 PukiWiki Developers Team
- // 2001-2002 Originally written by yu-ji
- // License: GPL v2 or (at your option) any later version
- //
- // General functions
- function is_interwiki($str)
- {
- global $InterWikiName;
- return preg_match('/^' . $InterWikiName . '$/', $str);
- }
- function is_pagename($str)
- {
- global $BracketName;
- $is_pagename = (! is_interwiki($str) &&
- preg_match('/^(?!\/)' . $BracketName . '$(?<!\/$)/', $str) &&
- ! preg_match('#(^|/)\.{1,2}(/|$)#', $str));
- if (defined('SOURCE_ENCODING')) {
- switch(SOURCE_ENCODING){
- case 'UTF-8': $pattern =
- '/^(?:[\x00-\x7F]|(?:[\xC0-\xDF][\x80-\xBF])|(?:[\xE0-\xEF][\x80-\xBF][\x80-\xBF]))+$/';
- break;
- case 'EUC-JP': $pattern =
- '/^(?:[\x00-\x7F]|(?:[\x8E\xA1-\xFE][\xA1-\xFE])|(?:\x8F[\xA1-\xFE][\xA1-\xFE]))+$/';
- break;
- }
- if (isset($pattern) && $pattern != '')
- $is_pagename = ($is_pagename && preg_match($pattern, $str));
- }
- return $is_pagename;
- }
- function is_url($str, $only_http = FALSE)
- {
- $scheme = $only_http ? 'https?' : 'https?|ftp|news';
- return preg_match('/^(' . $scheme . ')(:\/\/[-_.!~*\'()a-zA-Z0-9;\/?:\@&=+\$,%#]*)$/', $str);
- }
- // If the page exists
- function is_page($page, $clearcache = FALSE)
- {
- if ($clearcache) clearstatcache();
- return file_exists(get_filename($page));
- }
- // Handling $cantedit
- function is_cantedit($page)
- {
- global $cantedit;
- static $is_cantedit;
- if (! isset($is_cantedit)) {
- foreach($cantedit as $key) {
- $is_cantedit[$key] = TRUE;
- }
- }
- return isset($is_cantedit[$page]);
- }
- function is_editable($page)
- {
- static $is_editable = array();
- if (! isset($is_editable[$page])) {
- $is_editable[$page] = (
- is_pagename($page) &&
- ! is_freeze($page) &&
- ! is_cantedit($page)
- );
- }
- return $is_editable[$page];
- }
- function is_freeze($page, $clearcache = FALSE)
- {
- global $function_freeze;
- static $is_freeze = array();
- if ($clearcache === TRUE) $is_freeze = array();
- if (isset($is_freeze[$page])) return $is_freeze[$page];
- if (! $function_freeze || ! is_page($page)) {
- $is_freeze[$page] = FALSE;
- return FALSE;
- } else {
- $fp = fopen(get_filename($page), 'rb') or
- die('is_freeze(): fopen() failed: ' . htmlsc($page));
- flock($fp, LOCK_SH) or die('is_freeze(): flock() failed');
- rewind($fp);
- $buffer = fgets($fp, 9);
- 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');
- return $is_freeze[$page];
- }
- }
- // Handling $non_list
- // $non_list will be preg_quote($str, '/') later.
- function check_non_list($page = '')
- {
- global $non_list;
- static $regex;
- if (! isset($regex)) $regex = '/' . $non_list . '/';
- return preg_match($regex, $page);
- }
- // Auto template
- function auto_template($page)
- {
- global $auto_template_func, $auto_template_rules;
- if (! $auto_template_func) return '';
- $body = '';
- $matches = array();
- foreach ($auto_template_rules as $rule => $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;
- $body = get_source($template_page, TRUE, TRUE);
- // 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 $body;
- }
- // Expand all search-words to regexes and push them into an array
- function get_search_words($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')) {
- $mb_convert_kana = create_function('$str, $option',
- 'return mb_convert_kana($str, $option, SOURCE_ENCODING);');
- } else {
- $mb_convert_kana = create_function('$str, $option',
- 'return $str;');
- }
- 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 = '(?<!\x8F)';
- $post = '(?=(?:[\xA1-\xFE][\xA1-\xFE])*' . // JIS X 0208
- '(?:[\x00-\x7F\x8E\x8F]|\z))'; // ASCII, SS2, SS3, or the last
- } else {
- $pre = $post = '';
- }
- $init = TRUE;
- }
- if (! is_array($words)) $words = array($words);
- // Generate regex for the words
- $regex = array();
- foreach ($words as $word) {
- $word = trim($word);
- if ($word == '') continue;
- // Normalize: ASCII letters = to single-byte. Others = to Zenkaku and Katakana
- $word_nm = $mb_convert_kana($word, 'aKCV');
- $nmlen = mb_strlen($word_nm, SOURCE_ENCODING);
- // Each chars may be served ...
- $chars = array();
- for ($pos = 0; $pos < $nmlen; $pos++) {
- $char = mb_substr($word_nm, $pos, 1, SOURCE_ENCODING);
- // Just normalized one? (ASCII char or Zenkaku-Katakana?)
- $or = array(preg_quote($do_escape ? htmlsc($char) : $char, $quote));
- if (strlen($char) == 1) {
- // An ASCII (single-byte) character
- foreach (array(strtoupper($char), strtolower($char)) as $_char) {
- if ($char != '&') $or[] = preg_quote($_char, $quote); // As-is?
- $ascii = ord($_char);
- $or[] = sprintf('&#(?:%d|x%x);', $ascii, $ascii); // As an entity reference?
- $or[] = preg_quote($mb_convert_kana($_char, 'A'), $quote); // As Zenkaku?
- }
- } else {
- // NEVER COME HERE with mb_substr(string, start, length, 'ASCII')
- // A multi-byte character
- $or[] = preg_quote($mb_convert_kana($char, 'c'), $quote); // As Hiragana?
- $or[] = preg_quote($mb_convert_kana($char, 'k'), $quote); // As Hankaku-Katakana?
- }
- $chars[] = '(?:' . join('|', array_unique($or)) . ')'; // Regex for the character
- }
- $regex[$word] = $pre . join('', $chars) . $post; // For the word
- }
- return $regex; // For all words
- }
- // 'Search' main function
- function do_search($word, $type = 'AND', $non_format = FALSE, $base = '')
- {
- global $script, $whatsnew, $non_list, $search_non_list;
- global $_msg_andresult, $_msg_orresult, $_msg_notfoundresult;
- global $search_auth, $show_passage, $search_word_color;
- $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]);
- --$count;
- }
- // Search for page contents
- foreach ($keys as $key) {
- $b_match = preg_match($key, get_source($page, TRUE, TRUE));
- if ($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, $_msg_notfoundresult);
- ksort($pages, SORT_STRING);
- $retval = '<ul>' . "\n";
- foreach (array_keys($pages) as $page) {
- $r_page = rawurlencode($page);
- $s_page = htmlsc($page);
- $passage = $show_passage ? ' ' . get_passage(get_filetime($page)) : '';
- if ($search_word_color) {
- $uri = $script . '?' . 'cmd=read&page=' . $r_page . '&word=' . $r_word;
- } else {
- $uri = $script . '?' . $r_page;
- }
- $retval .= ' <li><a href="' . $uri . '">' . $s_page . '</a>' . $passage . '</li>' . "\n";
- }
- $retval .= '</ul>' . "\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'], $str) === 0);
- }
- // Encode page-name
- function encode($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 hex2bin_impl($str);
- }
- // Inversion of bin2hex()
- function hex2bin_impl($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 $str;
- }
- }
- // Generate sorted "list of pages" XHTML, with page-reading hints
- function page_list($pages = array('pagename.txt' => 'pagename'), $cmd = 'read', $withfilename = FALSE)
- {
- global $pagereading_enable, $list_index, $_msg_symbol, $_msg_other;
- // Sentinel: symbolic-chars < alphabetic-chars < another(multibyte)-chars
- // = ' ' < '[a-zA-Z]' < 'zz'
- $sentinel_symbol = ' ';
- $sentinel_another = 'zz';
- $href = get_script_uri() . '?' . ($cmd == 'read' ? '' : 'cmd=' . rawurlencode($cmd) . '&page=');
- $array = $matches = array();
- if ($pagereading_enable) {
- mb_regex_encoding(SOURCE_ENCODING);
- $readings = get_readings($pages);
- }
- foreach($pages as $file => $page) {
- // Get the initial letter of the page name
- if ($pagereading_enable) {
- // WARNING: Japanese code hard-wired
- if(mb_ereg('^([A-Za-z])', mb_convert_kana($page, 'a'), $matches)) {
- $initial = & $matches[1];
- } elseif (isset($readings[$page]) && mb_ereg('^([ァ-ヶ])', $readings[$page], $matches)) { // here
- $initial = & $matches[1];
- } elseif (mb_ereg('^[ -~]|[^ぁ-ん亜-熙]', $page)) { // and here
- $initial = & $sentinel_symbol;
- } else {
- $initial = & $sentinel_another;
- }
- } else {
- if (preg_match('/^([A-Za-z])/', $page, $matches)) {
- $initial = & $matches[1];
- } elseif (preg_match('/^([ -~])/', $page)) {
- $initial = & $sentinel_symbol;
- } else {
- $initial = & $sentinel_another;
- }
- }
- $str = ' <li>' .
- '<a href="' . $href . rawurlencode($page) . '">' .
- htmlsc($page, ENT_QUOTES) .
- '</a>' .
- get_pg_passage($page);
- if ($withfilename) {
- $str .= "\n" .
- ' <ul><li>' . htmlsc($file) . '</li></ul>' . "\n" .
- ' ';
- }
- $str .= '</li>';
- $array[$initial][$page] = $str;
- }
- unset($pages);
- ksort($array, SORT_STRING);
- if ($list_index) {
- $s_msg_symbol = htmlsc($_msg_symbol);
- $s_msg_another = htmlsc($_msg_other);
- }
- $cnt = 0;
- $retval = $contents = array();
- $retval[] = '<ul>';
- foreach ($array as $_initial => $pages) {
- ksort($pages, SORT_STRING);
- if ($list_index) {
- ++$cnt;
- if ($_initial == $sentinel_symbol) {
- $_initial = & $s_msg_symbol;
- } else if ($_initial == $sentinel_another) {
- $_initial = & $s_msg_another;
- }
- $retval[] = ' <li><a id="head_' . $cnt .
- '" href="#top_' . $cnt .
- '"><strong>' . $_initial . '</strong></a>';
- $retval[] = ' <ul>';
- $contents[] = '<a id="top_' . $cnt .
- '" href="#head_' . $cnt . '"><strong>' .
- $_initial . '</strong></a>';
- }
- $retval[] = join("\n", $pages);
- if ($list_index) {
- $retval[] = ' </ul>';
- $retval[] = ' </li>';
- }
- }
- $retval[] = '</ul>';
- unset($array);
- // Insert a table of contents
- if ($list_index && $cnt) {
- // Breaks in every N characters
- $N = 16;
- $tmp = array();
- while (! empty($contents)) {
- $tmp[] = join(' | ' . "\n", array_splice($contents, 0, $N));
- }
- $contents = & $tmp;
- array_unshift(
- $retval,
- '<div id="top" style="text-align:center">',
- join("\n" . '<br />' . "\n", $contents),
- '</div>');
- }
- return implode("\n", $retval) . "\n";
- }
- // Show text formatting rules
- function catrule()
- {
- global $rule_page;
- if (! is_page($rule_page)) {
- return '<p>Sorry, page \'' . htmlsc($rule_page) .
- '\' unavailable.</p>';
- } else {
- return convert_html(get_source($rule_page));
- }
- }
- // Show (critical) error message
- function die_message($msg)
- {
- $title = $page = 'Runtime error';
- $body = <<<EOD
- <h3>Runtime error</h3>
- <strong>Error message : $msg</strong>
- EOD;
- pkwk_common_headers();
- if(defined('SKIN_FILE') && file_exists(SKIN_FILE) && is_readable(SKIN_FILE)) {
- catbody($title, $page, $body);
- } else {
- header('Content-Type: text/html; charset=euc-jp');
- print <<<EOD
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <head>
- <title>$title</title>
- <meta http-equiv="content-type" content="text/html; charset=euc-jp">
- </head>
- <body>
- $body
- </body>
- </html>
- EOD;
- }
- exit;
- }
- // Have the time (as microtime)
- function getmicrotime()
- {
- list($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('/(?<!\\\)T/',
- preg_replace('/(.)/', '\\\$1', ZONE), $format);
- $time = ZONETIME + (($timestamp !== NULL) ? $timestamp : UTIME);
- return date($format, $time);
- }
- // Format date string
- function format_date($val, $paren = FALSE)
- {
- global $date_format, $time_format, $weeklabels;
- $val += ZONETIME;
- $date = date($date_format, $val) .
- ' (' . $weeklabels[date('w', $val)] . ') ' .
- date($time_format, $val);
- return $paren ? '(' . $date . ')' : $date;
- }
- // Get short string of the passage, 'N seconds/minutes/hours/days/years ago'
- function get_passage($time, $paren = TRUE)
- {
- static $units = array('m'=>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 . ')' : $time;
- }
- // Hide <input type="(submit|button|image)"...>
- function drop_submit($str)
- {
- return preg_replace('/<input([^>]+)type="(submit|button|image)"/i',
- '<input$1type="hidden"', $str);
- }
- // Generate AutoLink patterns (thx to hirofummy)
- function get_autolink_pattern(& $pages, $min_len = -1)
- {
- global $WikiName, $autolink, $nowikiname;
- $config = new Config('AutoLink');
- $config->read();
- $ignorepages = $config->get('IgnoreList');
- $forceignorepages = $config->get('ForceIgnoreList');
- unset($config);
- $auto_pages = array_merge($ignorepages, $forceignorepages);
- if ($min_len == -1) {
- $min_len = $autolink; // set $autolink, when omitted.
- }
- foreach ($pages as $page)
- if (preg_match('/^' . $WikiName . '$/', $page) ?
- $nowikiname : strlen($page) >= $min_len)
- $auto_pages[] = $page;
- if (empty($auto_pages)) {
- $result = $result_a = $nowikiname ? '(?!)' : $WikiName;
- } 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));
- $result = generate_trie_regex($auto_pages);
- $result_a = generate_trie_regex($auto_pages_a);
- }
- return array($result, $result_a, $forceignorepages);
- }
- // preg_quote(), and also escape PCRE_EXTENDED-related chars
- // REFERENCE: http://www.php.net/manual/en/reference.pcre.pattern.modifiers.php
- // NOTE: Some special whitespace characters may warned by PCRE_EXTRA,
- // because of mismatch-possibility between PCRE_EXTENDED and '[:space:]#'.
- function preg_quote_extended($string, $delimiter = NULL)
- {
- // Escape some more chars
- $regex_from = '/([[:space:]#])/';
- $regex_to = '\\\\$1';
- if (is_string($delimiter) && preg_match($regex_from, $delimiter)) {
- $delimiter = NULL;
- }
- return preg_replace($regex_from, $regex_to, preg_quote($string, $delimiter));
- }
- // Generate one compact regex for quick reTRIEval,
- // that just matches with all $array-values.
- //
- // USAGE (PHP >= 4.4.0, PHP >= 5.0.2):
- // $array = array(7 => 'fooa', 5 => 'foob');
- // $array = array_unique($array);
- // sort($array, SORT_LOCALE_STRING); // Keys will be replaced
- // echo generate_trie_regex($array); // 'foo(?:a|b)'
- //
- // USAGE (PHP >= 5.2.9):
- // $array = array(7 => 'fooa', 5 => 'foob');
- // $array = array_unique($array, SORT_LOCALE_STRING);
- // $array = array_values($array);
- // echo generate_trie_regex($array); // 'foo(?:a|b)'
- //
- // ARGUMENTS:
- // $array : A _sorted_string_ array
- // * array_keys($array) MUST BE _continuous_integers_started_with_0_.
- // * Type of all $array-values MUST BE string.
- // $_offset : (int) internal use. $array[$_offset ] is the first value to check
- // $_sentry : (int) internal use. $array[$_sentry - 1] is the last value to check
- // $_pos : (int) internal use. Position of the letter to start checking. (0 = the first letter)
- //
- // REFERENCE: http://en.wikipedia.org/wiki/Trie
- //
- function generate_trie_regex($array, $_offset = 0, $_sentry = NULL, $_pos = 0)
- {
- if (empty($array)) return '(?!)'; // Match with nothing
- if ($_sentry === NULL) $_sentry = count($array);
- // Question mark: array('', 'something') => '(?:something)?'
- $skip = ($_pos >= mb_strlen($array[$_offset]));
- if ($skip) ++$_offset;
- // Generate regex for each value
- $regex = array();
- $index = $_offset;
- $multi = FALSE;
- while ($index < $_sentry) {
- if ($index != $_offset) {
- $multi = TRUE;
- $regex[] = '|'; // OR
- }
- // Get one character from left side of the value
- $char = mb_substr($array[$index], $_pos, 1);
- // How many continuous keys have the same letter
- // at the same position?
- for ($i = $index + 1; $i < $_sentry; $i++) {
- if (mb_substr($array[$i], $_pos, 1) != $char) break;
- }
- if ($index < ($i - 1)) {
- // Some more keys found
- // Recurse
- $regex[] = preg_quote_extended($char, '/');
- $regex[] = generate_trie_regex($array, $index, $i, $_pos + 1);
- } else {
- // Not found
- $regex[] = preg_quote_extended(mb_substr($array[$index], $_pos), '/');
- }
- $index = $i;
- }
- if ($skip || $multi) {
- array_unshift($regex, '(?:');
- $regex[] = ')';
- }
- if ($skip) $regex[] = '?'; // Match for $pages[$_offset - 1]
- return implode('', $regex);
- }
- // Compat
- function get_autolink_pattern_sub($pages, $_start, $_end, $_pos)
- {
- return generate_trie_regex($pages, $_start, $_end, $_pos);
- }
- // Load/get setting pairs from AutoAliasName
- function get_autoaliases($word = '')
- {
- global $aliaspage, $autoalias_max_words;
- static $pairs;
- if (! isset($pairs)) {
- $pairs = array();
- $pattern = <<<EOD
- \[\[ # open bracket
- ((?:(?!\]\]).)+)> # (1) alias name
- ((?:(?!\]\]).)+) # (2) alias link
- \]\] # close bracket
- EOD;
- $postdata = get_source($aliaspage, TRUE, TRUE);
- $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[$key]);
- }
- }
- }
- if ($word === '') {
- // An array(): All pairs
- return $pairs;
- } else {
- // A string: Seek the pair
- if (isset($pairs[$word])) {
- return $pairs[$word];
- } else {
- return '';
- }
- }
- }
- // Get absolute-URI of this script
- function get_script_uri($init_uri = '')
- {
- global $script_directory_index;
- static $script;
- if ($init_uri == '') {
- // Get
- if (isset($script)) return $script;
- // Set automatically
- $msg = 'get_script_uri() failed: Please set $script at INI_FILE manually';
- $script = (SERVER_PORT == 443 ? 'https://' : 'http://'); // scheme
- $script .= SERVER_NAME; // host
- $script .= (SERVER_PORT == 80 ? '' : ':' . SERVER_PORT); // port
- // 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);
- // 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);
- $path = $parse_url['path'];
- }
- $script .= $path;
- if (! is_url($script, TRUE) && php_sapi_name() == 'cgi')
- die_message($msg);
- unset($msg);
- } else {
- // Set manually
- if (isset($script)) die_message('$script: Already init');
- if (! is_url($init_uri, TRUE)) die_message('$script: Invalid URI');
- $script = $init_uri;
- }
- // Cut filename or not
- if (isset($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];
- }
- return $script;
- }
- // Remove null(\0) bytes from variables
- //
- // NOTE: PHP had vulnerabilities that opens "hoge.php" via fopen("hoge.php\0.txt") etc.
- // [PHP-users 12736] null byte attack
- // http://ns1.php.gr.jp/pipermail/php-users/2003-January/012742.html
- //
- // 2003-05-16: magic quotes gpcの復元処理を統合
- // 2003-05-21: 連想配列のキーはbinary safe
- //
- function input_filter($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 (ereg('[' . $_glue . '"' . "\n\r" . ']', $str))
- $str = '"' . str_replace('"', '""', $str) . '"';
- $arr[] = $str;
- }
- return join($glue, $arr);
- }
- // Sugar with default settings
- function htmlsc($string = '', $flags = ENT_QUOTES, $charset = CONTENT_CHARSET)
- {
- return htmlspecialchars($string, $flags, $charset); // htmlsc()
- }
- //// Compat ////
- // is_a -- Returns TRUE if the object is of this class or has this class as one of its parents
- // (PHP 4 >= 4.2.0, PHP 5)
- if (! function_exists('is_a')) {
- function is_a($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), $match); // Recurse
- }
- }
- }
- // array_fill -- Fill an array with values
- // (PHP 4 >= 4.2.0, PHP 5)
- if (! function_exists('array_fill')) {
- function array_fill($start_index, $num, $value)
- {
- $ret = array();
- while ($num-- > 0) $ret[$start_index++] = $value;
- return $ret;
- }
- }
- // md5_file -- Calculates the md5 hash of a given filename
- // (PHP 4 >= 4.2.0, PHP 5)
- if (! function_exists('md5_file')) {
- function md5_file($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($data);
- }
- }
- // sha1 -- Compute SHA-1 hash
- // (PHP 4 >= 4.3.0, PHP 5)
- if (! function_exists('sha1')) {
- if (extension_loaded('mhash')) {
- function sha1($str)
- {
- return bin2hex(mhash(MHASH_SHA1, $str));
- }
- }
- }
- ?>