/lib/html.php
PHP | 538 lines | 409 code | 72 blank | 57 comment | 70 complexity | 3b3b32de8408e4b329c79884857b5e3c MD5 | raw file
Possible License(s): GPL-2.0
- <?php
- // PukiWiki - Yet another WikiWikiWeb clone.
- // $Id: html.php,v 1.66 2011/01/25 15:01:01 henoheno Exp $
- // Copyright (C)
- // 2002-2007 PukiWiki Developers Team
- // 2001-2002 Originally written by yu-ji
- // License: GPL v2 or (at your option) any later version
- //
- // HTML-publishing related functions
- // Show page-content
- function catbody($title, $page, $body)
- {
- global $script, $vars, $arg, $defaultpage, $whatsnew, $help_page, $hr;
- global $attach_link, $related_link, $function_freeze;
- global $search_word_color, $_msg_word, $foot_explain, $note_hr, $head_tags;
- global $javascript, $nofollow;
- global $_LANG, $_LINK, $_IMAGE;
- global $pkwk_dtd; // XHTML 1.1, XHTML1.0, HTML 4.01 Transitional...
- global $page_title; // Title of this site
- global $do_backup; // Do backup or not
- global $modifier; // Site administrator's web page
- global $modifierlink; // Site administrator's name
- if (! file_exists(SKIN_FILE) || ! is_readable(SKIN_FILE))
- die_message('SKIN_FILE is not found');
- $_LINK = $_IMAGE = array();
- // Add JavaScript header when ...
- if (! PKWK_ALLOW_JAVASCRIPT) unset($javascript);
- $_page = isset($vars['page']) ? $vars['page'] : '';
- $r_page = rawurlencode($_page);
- // Set $_LINK for skin
- $_LINK['add'] = "$script?cmd=add&page=$r_page";
- $_LINK['backup'] = "$script?cmd=backup&page=$r_page";
- $_LINK['copy'] = "$script?plugin=template&refer=$r_page";
- $_LINK['diff'] = "$script?cmd=diff&page=$r_page";
- $_LINK['edit'] = "$script?cmd=edit&page=$r_page";
- $_LINK['filelist'] = "$script?cmd=filelist";
- $_LINK['freeze'] = "$script?cmd=freeze&page=$r_page";
- $_LINK['help'] = "$script?" . rawurlencode($help_page);
- $_LINK['list'] = "$script?cmd=list";
- $_LINK['new'] = "$script?plugin=newpage&refer=$r_page";
- $_LINK['rdf'] = "$script?cmd=rss&ver=1.0";
- $_LINK['recent'] = "$script?" . rawurlencode($whatsnew);
- $_LINK['reload'] = "$script?$r_page";
- $_LINK['rename'] = "$script?plugin=rename&refer=$r_page";
- $_LINK['rss'] = "$script?cmd=rss";
- $_LINK['rss10'] = "$script?cmd=rss&ver=1.0"; // Same as 'rdf'
- $_LINK['rss20'] = "$script?cmd=rss&ver=2.0";
- $_LINK['search'] = "$script?cmd=search";
- $_LINK['top'] = "$script?" . rawurlencode($defaultpage);
- $_LINK['unfreeze'] = "$script?cmd=unfreeze&page=$r_page";
- $_LINK['upload'] = "$script?plugin=attach&pcmd=upload&page=$r_page";
- // Compat: Skins for 1.4.4 and before
- $link_add = & $_LINK['add'];
- $link_new = & $_LINK['new']; // New!
- $link_edit = & $_LINK['edit'];
- $link_diff = & $_LINK['diff'];
- $link_top = & $_LINK['top'];
- $link_list = & $_LINK['list'];
- $link_filelist = & $_LINK['filelist'];
- $link_search = & $_LINK['search'];
- $link_whatsnew = & $_LINK['recent'];
- $link_backup = & $_LINK['backup'];
- $link_help = & $_LINK['help'];
- $link_trackback = ''; // Removed (compat)
- $link_rdf = & $_LINK['rdf']; // New!
- $link_rss = & $_LINK['rss'];
- $link_rss10 = & $_LINK['rss10']; // New!
- $link_rss20 = & $_LINK['rss20']; // New!
- $link_freeze = & $_LINK['freeze'];
- $link_unfreeze = & $_LINK['unfreeze'];
- $link_upload = & $_LINK['upload'];
- $link_template = & $_LINK['copy'];
- $link_refer = ''; // Removed (compat)
- $link_rename = & $_LINK['rename'];
- // Init flags
- $is_page = (is_pagename($_page) && ! arg_check('backup') && ! is_cantedit($_page));
- $is_read = (arg_check('read') && is_page($_page));
- $is_freeze = is_freeze($_page);
- // Last modification date (string) of the page
- $lastmodified = $is_read ? format_date(get_filetime($_page)) .
- ' ' . get_pg_passage($_page, FALSE) : '';
- // List of attached files to the page
- $attaches = ($attach_link && $is_read && exist_plugin_action('attach')) ?
- attach_filelist() : '';
- // List of related pages
- $related = ($related_link && $is_read) ? make_related($_page) : '';
- // List of footnotes
- ksort($foot_explain, SORT_NUMERIC);
- $notes = ! empty($foot_explain) ? $note_hr . join("\n", $foot_explain) : '';
- // Tags will be inserted into <head></head>
- $head_tag = ! empty($head_tags) ? join("\n", $head_tags) ."\n" : '';
- // 1.3.x compat
- // Last modification date (UNIX timestamp) of the page
- $fmt = $is_read ? get_filetime($_page) + LOCALZONE : 0;
- // Search words
- if ($search_word_color && isset($vars['word'])) {
- $body = '<div class="small">' . $_msg_word . htmlsc($vars['word']) .
- '</div>' . $hr . "\n" . $body;
- // BugTrack2/106: Only variables can be passed by reference from PHP 5.0.5
- // with array_splice(), array_flip()
- $words = preg_split('/\s+/', $vars['word'], -1, PREG_SPLIT_NO_EMPTY);
- $words = array_splice($words, 0, 10); // Max: 10 words
- $words = array_flip($words);
- $keys = array();
- foreach ($words as $word=>$id) $keys[$word] = strlen($word);
- arsort($keys, SORT_NUMERIC);
- $keys = get_search_words(array_keys($keys), TRUE);
- $id = 0;
- foreach ($keys as $key=>$pattern) {
- $s_key = htmlsc($key);
- $pattern = '/' .
- '<textarea[^>]*>.*?<\/textarea>' . // Ignore textareas
- '|' . '<[^>]*>' . // Ignore tags
- '|' . '&[^;]+;' . // Ignore entities
- '|' . '(' . $pattern . ')' . // $matches[1]: Regex for a search word
- '/sS';
- $decorate_Nth_word = create_function(
- '$matches',
- 'return (isset($matches[1])) ? ' .
- '\'<strong class="word' .
- $id .
- '">\' . $matches[1] . \'</strong>\' : ' .
- '$matches[0];'
- );
- $body = preg_replace_callback($pattern, $decorate_Nth_word, $body);
- $notes = preg_replace_callback($pattern, $decorate_Nth_word, $notes);
- ++$id;
- }
- }
- // Compat: 'HTML convert time' without time about MenuBar and skin
- $taketime = elapsedtime();
- require(SKIN_FILE);
- }
- // Show 'edit' form
- function edit_form($page, $postdata, $digest = FALSE, $b_template = TRUE)
- {
- global $script, $vars, $rows, $cols, $hr, $function_freeze;
- global $_btn_preview, $_btn_repreview, $_btn_update, $_btn_cancel, $_msg_help;
- global $_btn_template, $_btn_load, $load_template_func;
- global $notimeupdate;
- // Newly generate $digest or not
- if ($digest === FALSE) $digest = md5(get_source($page, TRUE, TRUE));
- $refer = $template = '';
-
- // Add plugin
- $addtag = $add_top = '';
- if(isset($vars['add'])) {
- global $_btn_addtop;
- $addtag = '<input type="hidden" name="add" value="true" />';
- $add_top = isset($vars['add_top']) ? ' checked="checked"' : '';
- $add_top = '<input type="checkbox" name="add_top" ' .
- 'id="_edit_form_add_top" value="true"' . $add_top . ' />' . "\n" .
- ' <label for="_edit_form_add_top">' .
- '<span class="small">' . $_btn_addtop . '</span>' .
- '</label>';
- }
- if($load_template_func && $b_template) {
- $pages = array();
- foreach(get_existpages() as $_page) {
- if (is_cantedit($_page) || check_non_list($_page))
- continue;
- $s_page = htmlsc($_page);
- $pages[$_page] = ' <option value="' . $s_page . '">' .
- $s_page . '</option>';
- }
- ksort($pages, SORT_STRING);
- $s_pages = join("\n", $pages);
- $template = <<<EOD
- <select name="template_page">
- <option value="">-- $_btn_template --</option>
- $s_pages
- </select>
- <input type="submit" name="template" value="$_btn_load" accesskey="r" />
- <br />
- EOD;
- if (isset($vars['refer']) && $vars['refer'] != '')
- $refer = '[[' . strip_bracket($vars['refer']) . ']]' . "\n\n";
- }
- $r_page = rawurlencode($page);
- $s_page = htmlsc($page);
- $s_digest = htmlsc($digest);
- $s_postdata = htmlsc($refer . $postdata);
- $s_original = isset($vars['original']) ? htmlsc($vars['original']) : $s_postdata;
- $b_preview = isset($vars['preview']); // TRUE when preview
- $btn_preview = $b_preview ? $_btn_repreview : $_btn_preview;
- // Checkbox 'do not change timestamp'
- $add_notimestamp = '';
- if ($notimeupdate != 0) {
- global $_btn_notchangetimestamp;
- $checked_time = isset($vars['notimestamp']) ? ' checked="checked"' : '';
- // Only for administrator
- if ($notimeupdate == 2) {
- $add_notimestamp = ' ' .
- '<input type="password" name="pass" size="12" />' . "\n";
- }
- $add_notimestamp = '<input type="checkbox" name="notimestamp" ' .
- 'id="_edit_form_notimestamp" value="true"' . $checked_time . ' />' . "\n" .
- ' ' . '<label for="_edit_form_notimestamp"><span class="small">' .
- $_btn_notchangetimestamp . '</span></label>' . "\n" .
- $add_notimestamp .
- ' ';
- }
- // 'margin-bottom', 'float:left', and 'margin-top'
- // are for layout of 'cancel button'
- $body = <<<EOD
- <div class="edit_form">
- <form action="$script" method="post" style="margin-bottom:0px;">
- $template
- $addtag
- <input type="hidden" name="cmd" value="edit" />
- <input type="hidden" name="page" value="$s_page" />
- <input type="hidden" name="digest" value="$s_digest" />
- <textarea name="msg" rows="$rows" cols="$cols">$s_postdata</textarea>
- <br />
- <div style="float:left;">
- <input type="submit" name="preview" value="$btn_preview" accesskey="p" />
- <input type="submit" name="write" value="$_btn_update" accesskey="s" />
- $add_top
- $add_notimestamp
- </div>
- <textarea name="original" rows="1" cols="1" style="display:none">$s_original</textarea>
- </form>
- <form action="$script" method="post" style="margin-top:0px;">
- <input type="hidden" name="cmd" value="edit" />
- <input type="hidden" name="page" value="$s_page" />
- <input type="submit" name="cancel" value="$_btn_cancel" accesskey="c" />
- </form>
- </div>
- EOD;
- if (isset($vars['help'])) {
- $body .= $hr . catrule();
- } else {
- $body .= '<ul><li><a href="' .
- $script . '?cmd=edit&help=true&page=' . $r_page .
- '">' . $_msg_help . '</a></li></ul>';
- }
- return $body;
- }
- // Related pages
- function make_related($page, $tag = '')
- {
- global $script, $vars, $rule_related_str, $related_str;
- global $_ul_left_margin, $_ul_margin, $_list_pad_str;
- $links = links_get_related($page);
- if ($tag) {
- ksort($links, SORT_STRING); // Page name, alphabetical order
- } else {
- arsort($links, SORT_NUMERIC); // Last modified date, newer
- }
- $_links = array();
- foreach ($links as $page=>$lastmod) {
- if (check_non_list($page)) continue;
- $r_page = rawurlencode($page);
- $s_page = htmlsc($page);
- $passage = get_passage($lastmod);
- $_links[] = $tag ?
- '<a href="' . $script . '?' . $r_page . '" title="' .
- $s_page . ' ' . $passage . '">' . $s_page . '</a>' :
- '<a href="' . $script . '?' . $r_page . '">' .
- $s_page . '</a>' . $passage;
- }
- if (empty($_links)) return ''; // Nothing
- if ($tag == 'p') { // From the line-head
- $margin = $_ul_left_margin + $_ul_margin;
- $style = sprintf($_list_pad_str, 1, $margin, $margin);
- $retval = "\n" . '<ul' . $style . '>' . "\n" .
- '<li>' . join($rule_related_str, $_links) . '</li>' . "\n" .
- '</ul>' . "\n";
- } else if ($tag) {
- $retval = join($rule_related_str, $_links);
- } else {
- $retval = join($related_str, $_links);
- }
- return $retval;
- }
- // User-defined rules (convert without replacing source)
- function make_line_rules($str)
- {
- global $line_rules;
- static $pattern, $replace;
- if (! isset($pattern)) {
- $pattern = array_map(create_function('$a',
- 'return \'/\' . $a . \'/\';'), array_keys($line_rules));
- $replace = array_values($line_rules);
- unset($line_rules);
- }
- return preg_replace($pattern, $replace, $str);
- }
- // Remove all HTML tags(or just anchor tags), and WikiName-speific decorations
- function strip_htmltag($str, $all = TRUE)
- {
- global $_symbol_noexists;
- static $noexists_pattern;
- if (! isset($noexists_pattern))
- $noexists_pattern = '#<span class="noexists">([^<]*)<a[^>]+>' .
- preg_quote($_symbol_noexists, '#') . '</a></span>#';
- // Strip Dagnling-Link decoration (Tags and "$_symbol_noexists")
- $str = preg_replace($noexists_pattern, '$1', $str);
- if ($all) {
- // All other HTML tags
- return preg_replace('#<[^>]+>#', '', $str);
- } else {
- // All other anchor-tags only
- return preg_replace('#<a[^>]+>|</a>#i', '', $str);
- }
- }
- // Remove AutoLink marker with AutLink itself
- function strip_autolink($str)
- {
- return preg_replace('#<!--autolink--><a [^>]+>|</a><!--/autolink-->#', '', $str);
- }
- // Make a backlink. searching-link of the page name, by the page name, for the page name
- function make_search($page)
- {
- global $script;
- $s_page = htmlsc($page);
- $r_page = rawurlencode($page);
- return '<a href="' . $script . '?plugin=related&page=' . $r_page .
- '">' . $s_page . '</a> ';
- }
- // Make heading string (remove heading-related decorations from Wiki text)
- function make_heading(& $str, $strip = TRUE)
- {
- global $NotePattern;
- // Cut fixed-heading anchors
- $id = '';
- $matches = array();
- if (preg_match('/^(\*{0,3})(.*?)\[#([A-Za-z][\w-]+)\](.*?)$/m', $str, $matches)) {
- $str = $matches[2] . $matches[4];
- $id = & $matches[3];
- } else {
- $str = preg_replace('/^\*{0,3}/', '', $str);
- }
- // Cut footnotes and tags
- if ($strip === TRUE)
- $str = strip_htmltag(make_link(preg_replace($NotePattern, '', $str)));
- return $id;
- }
- // Separate a page-name(or URL or null string) and an anchor
- // (last one standing) without sharp
- function anchor_explode($page, $strict_editable = FALSE)
- {
- $pos = strrpos($page, '#');
- if ($pos === FALSE) return array($page, '', FALSE);
- // Ignore the last sharp letter
- if ($pos + 1 == strlen($page)) {
- $pos = strpos(substr($page, $pos + 1), '#');
- if ($pos === FALSE) return array($page, '', FALSE);
- }
- $s_page = substr($page, 0, $pos);
- $anchor = substr($page, $pos + 1);
- if($strict_editable === TRUE && preg_match('/^[a-z][a-f0-9]{7}$/', $anchor)) {
- return array ($s_page, $anchor, TRUE); // Seems fixed-anchor
- } else {
- return array ($s_page, $anchor, FALSE);
- }
- }
- // Check HTTP header()s were sent already, or
- // there're blank lines or something out of php blocks
- function pkwk_headers_sent()
- {
- if (PKWK_OPTIMISE) return;
- $file = $line = '';
- if (version_compare(PHP_VERSION, '4.3.0', '>=')) {
- if (headers_sent($file, $line))
- die('Headers already sent at ' .
- htmlsc($file) .
- ' line ' . $line . '.');
- } else {
- if (headers_sent())
- die('Headers already sent.');
- }
- }
- // Output common HTTP headers
- function pkwk_common_headers()
- {
- if (! PKWK_OPTIMISE) pkwk_headers_sent();
- if(defined('PKWK_ZLIB_LOADABLE_MODULE')) {
- $matches = array();
- if(ini_get('zlib.output_compression') &&
- preg_match('/\b(gzip|deflate)\b/i', $_SERVER['HTTP_ACCEPT_ENCODING'], $matches)) {
- // Bug #29350 output_compression compresses everything _without header_ as loadable module
- // http://bugs.php.net/bug.php?id=29350
- header('Content-Encoding: ' . $matches[1]);
- header('Vary: Accept-Encoding');
- }
- }
- }
- // DTD definitions
- define('PKWK_DTD_XHTML_1_1', 17); // Strict only
- define('PKWK_DTD_XHTML_1_0', 16); // Strict
- define('PKWK_DTD_XHTML_1_0_STRICT', 16);
- define('PKWK_DTD_XHTML_1_0_TRANSITIONAL', 15);
- define('PKWK_DTD_XHTML_1_0_FRAMESET', 14);
- define('PKWK_DTD_HTML_4_01', 3); // Strict
- define('PKWK_DTD_HTML_4_01_STRICT', 3);
- define('PKWK_DTD_HTML_4_01_TRANSITIONAL', 2);
- define('PKWK_DTD_HTML_4_01_FRAMESET', 1);
- define('PKWK_DTD_TYPE_XHTML', 1);
- define('PKWK_DTD_TYPE_HTML', 0);
- // Output HTML DTD, <html> start tag. Return content-type.
- function pkwk_output_dtd($pkwk_dtd = PKWK_DTD_XHTML_1_1, $charset = CONTENT_CHARSET)
- {
- static $called;
- if (isset($called)) die('pkwk_output_dtd() already called. Why?');
- $called = TRUE;
- $type = PKWK_DTD_TYPE_XHTML;
- $option = '';
- switch($pkwk_dtd){
- case PKWK_DTD_XHTML_1_1 :
- $version = '1.1' ;
- $dtd = 'http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd';
- break;
- case PKWK_DTD_XHTML_1_0_STRICT :
- $version = '1.0' ;
- $option = 'Strict';
- $dtd = 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd';
- break;
- case PKWK_DTD_XHTML_1_0_TRANSITIONAL:
- $version = '1.0' ;
- $option = 'Transitional';
- $dtd = 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd';
- break;
- case PKWK_DTD_HTML_4_01_STRICT :
- $type = PKWK_DTD_TYPE_HTML;
- $version = '4.01';
- $dtd = 'http://www.w3.org/TR/html4/strict.dtd';
- break;
- case PKWK_DTD_HTML_4_01_TRANSITIONAL:
- $type = PKWK_DTD_TYPE_HTML;
- $version = '4.01';
- $option = 'Transitional';
- $dtd = 'http://www.w3.org/TR/html4/loose.dtd';
- break;
- default: die('DTD not specified or invalid DTD');
- break;
- }
- $charset = htmlsc($charset);
- // Output XML or not
- if ($type == PKWK_DTD_TYPE_XHTML) echo '<?xml version="1.0" encoding="' . $charset . '" ?>' . "\n";
- // Output doctype
- echo '<!DOCTYPE html PUBLIC "-//W3C//DTD ' .
- ($type == PKWK_DTD_TYPE_XHTML ? 'XHTML' : 'HTML') . ' ' .
- $version .
- ($option != '' ? ' ' . $option : '') .
- '//EN" "' .
- $dtd .
- '">' . "\n";
- // Output <html> start tag
- echo '<html';
- if ($type == PKWK_DTD_TYPE_XHTML) {
- echo ' xmlns="http://www.w3.org/1999/xhtml"'; // dir="ltr" /* LeftToRight */
- echo ' xml:lang="' . LANG . '"';
- if ($version == '1.0') echo ' lang="' . LANG . '"'; // Only XHTML 1.0
- } else {
- echo ' lang="' . LANG . '"'; // HTML
- }
- echo '>' . "\n"; // <html>
- // Return content-type (with MIME type)
- if ($type == PKWK_DTD_TYPE_XHTML) {
- // NOTE: XHTML 1.1 browser will ignore http-equiv
- return '<meta http-equiv="content-type" content="application/xhtml+xml; charset=' . $charset . '" />' . "\n";
- } else {
- return '<meta http-equiv="content-type" content="text/html; charset=' . $charset . '" />' . "\n";
- }
- }
- ?>