<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Version 1.1.6 (Caoineag beta 1)
* Copyright (C) 2006-2008 Dan Fuhry
* render.php - handles fetching pages and parsing them into HTML
*
* This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
*/
class RenderMan {
public static function strToPageID($string)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$k = array_keys($paths->nslist);
$proj_alt = 'Project:';
if ( substr($string, 0, (strlen($proj_alt))) == $proj_alt )
{
$ns = 'Project';
$pg = substr($string, strlen($proj_alt), strlen($string));
return Array($pg, $ns);
}
for($i=0;$i<sizeof($paths->nslist);$i++)
{
$ln = strlen($paths->nslist[$k[$i]]);
if(substr($string, 0, $ln) == $paths->nslist[$k[$i]])
{
$ns = $k[$i];
$pg = substr($string, strlen($paths->nslist[$ns]), strlen($string));
}
}
return Array($pg, $ns);
}
public static function getPage($page_id, $namespace, $wiki = 1, $smilies = true, $filter_links = true, $redir = true, $render = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$page = new PageProcessor($page_id, $namespace);
$text = $page->fetch_text();
if ( !$render )
return $text;
$text = self::render($text, $wiki, $smilies, $filter_links);
return $text;
}
public static function getTemplate($id, $parms)
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( !isPage($paths->get_pathskey($id, 'Template')) )
{
return '[['.$paths->nslist['Template'].$id.']]';
}
if(isset($paths->template_cache[$id]))
{
$text = $paths->template_cache[$id];
}
else
{
$page = new PageProcessor($id, 'Template');
$text = $page->fetch_text();
$paths->template_cache[$id] = $text;
}
$text = preg_replace('/<noinclude>(.*?)<\/noinclude>/is', '', $text);
$text = preg_replace('/<nodisplay>(.*?)<\/nodisplay>/is', '\\1', $text);
preg_match_all('#\(_([0-9]+)_\)#', $text, $matchlist);
foreach($matchlist[1] as $m)
{
if(isset($parms[((int)$m)+1]))
{
$p = $parms[((int)$m)+1];
}
else
{
$p = '<b>Notice:</b> RenderMan::getTemplate(): Parameter '.$m.' is not set';
}
$text = str_replace('(_'.$m.'_)', $p, $text);
$text = str_replace('{{' . ( $m + 1 ) . '}}', $p, $text);
}
$text = RenderMan::include_templates($text);
return $text;
}
public static function fetch_template_text($id)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$fetch_ns = 'Template';
if ( !isPage($paths->get_pathskey($id, 'Template')) )
{
// Transclusion of another page
// 1.1.5: Now You, Too, Can Be A Template, Even If You're Just A Plain Old Article! (TM)
$nssep = substr($paths->nslist['Special'], -1);
$nslist = $paths->nslist;
foreach ( $nslist as &$ns )
{
if ( $ns == '' )
$ns = $nssep;
}
$prefixlist = array_flip($nslist);
foreach ( $nslist as &$ns )
{
$ns = preg_quote($ns);
}
$nslist = implode('|', $nslist);
if ( preg_match("/^($nslist)(.*?)$/", $id, $match) )
{
// in practice this should always be true but just to be safe...
if ( isset($prefixlist[$match[1]]) )
{
$new_id = $paths->nslist[ $prefixlist[$match[1]] ] . sanitize_page_id($match[2]);
if ( !isPage($new_id) )
{
return "[[$new_id]]";
}
$fetch_ns = $prefixlist[$match[1]];
$id = sanitize_page_id($match[2]);
}
}
else
{
return '[['.$paths->nslist['Template'].$id.']]';
}
}
if(isset($paths->template_cache[$id]))
{
$text = $paths->template_cache[$id];
}
else
{
$text = RenderMan::getPage($id, $fetch_ns, 0, false, false, false, false);
$paths->template_cache[$id] = $text;
}
if ( is_string($text) )
{
$text = preg_replace('/<noinclude>(.*?)<\/noinclude>/is', '', $text);
$text = preg_replace('/<nodisplay>(.*?)<\/nodisplay>/is', '\\1', $text);
}
return $text;
}
/**
* Renders a glob of text. Note that this is PHP-safe, so if returned text (or rather, "?>" . $returned) has PHP it can be eval'ed.
* @param string Text to render
* @param int Render parameters - see constants.php
* @return string Rendered text
*/
public static function render($text, $flags = RENDER_WIKI_DEFAULT, $smilies = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( !$smilies )
$flags |= RENDER_NOSMILIES;
if ( $flags & ~RENDER_NOSMILIES )
{
$text = RenderMan::smilieyize($text);
}
if ( $flags & RENDER_WIKI_DEFAULT )
{
$text = RenderMan::next_gen_wiki_format($text, $flags);
}
else if ( $flags & RENDER_WIKI_TEMPLATE )
{
$text = $template->tplWikiFormat($text);
}
return $text;
}
private static function next_gen_wiki_format($text, $flags = 0)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
require_once(ENANO_ROOT.'/includes/wikiformat.php');
require_once(ENANO_ROOT.'/includes/wikiengine/Tables.php');
profiler_log("RenderMan: starting wikitext render");
$random_id = md5( time() . mt_rand() );
// Strip out <nowiki> sections and PHP code
$nw = preg_match_all('#<nowiki>(.*?)<\/nowiki>#is', $text, $nowiki);
for($i=0;$i<sizeof($nowiki[1]);$i++)
{
$text = str_replace('<nowiki>'.$nowiki[1][$i].'</nowiki>', '{NOWIKI:'.$random_id.':'.$i.'}', $text);
}
$code = $plugins->setHook('render_wikiformat_veryearly');
foreach ( $code as $cmd )
{
eval($cmd);
}
$php = preg_match_all('#<\?php(.*?)\?>#is', $text, $phpsec);
for($i=0;$i<sizeof($phpsec[1]);$i++)
{
$text = str_replace('<?php'.$phpsec[1][$i].'?>', '{PHP:'.$random_id.':'.$i.'}', $text);
}
$text = preg_replace('/<noinclude>(.*?)<\/noinclude>/is', '\\1', $text);
if ( $paths->namespace == 'Template' )
{
$text = preg_replace('/<nodisplay>(.*?)<\/nodisplay>/is', '', $text);
}
if ( !($flags & RENDER_BLOCKONLY) )
{
preg_match_all('/<lang (?:code|id)="([a-z0-9_-]+)">([\w\W]+?)<\/lang>/', $text, $langmatch);
foreach ( $langmatch[0] as $i => $match )
{
if ( $langmatch[1][$i] == $lang->lang_code )
{
$text = str_replace_once($match, $langmatch[2][$i], $text);
}
else
{
$text = str_replace_once($match, '', $text);
}
}
$code = $plugins->setHook('render_wikiformat_pre');
foreach ( $code as $cmd )
{
eval($cmd);
}
//$template_regex = "/\{\{([^\]]+?)((\n([ ]*?)[A-z0-9]+([ ]*?)=([ ]*?)(.+?))*)\}\}/is";
$template_regex = "/\{\{(.+)((\n|\|[ ]*([A-z0-9]+)[ ]*=[ ]*(.+))*)\}\}/isU";
$i = 0;
while ( preg_match($template_regex, $text) )
{
$i++;
if ( $i == 5 )
break;
$text = RenderMan::include_templates($text);
}
$code = $plugins->setHook('render_wikiformat_posttemplates');
foreach ( $code as $cmd )
{
eval($cmd);
}
// Process images
$text = RenderMan::process_image_tags($text, $taglist);
$text = RenderMan::process_imgtags_stage2($text, $taglist);
}
// Before shipping it out to the renderer, replace spaces in between headings and paragraphs:
$text = preg_replace('/<\/(h[0-9]|div|p)>([\s]+)<(h[0-9]|div|p)( .+?)?>/i', '</\\1><\\3\\4>', $text);
$text = process_tables($text);
if ( !($flags & RENDER_BLOCKONLY) )
$text = RenderMan::parse_internal_links($text);
$wiki = Text_Wiki::singleton('Mediawiki');
$wiki->setRenderConf('Xhtml', 'wikilink', 'view_url', contentPath);
$wiki->setRenderConf('Xhtml', 'Url', 'css_descr', 'external');
if ( $flags & RENDER_BLOCKONLY )
{
$wiki->disableRule('Freelink');
$wiki->disableRule('Url');
$wiki->disableRule('Toc');
$wiki->disableRule('Image');
}
else if ( $flags & RENDER_INLINEONLY )
{
foreach ( array('code', 'html', 'raw', 'include', 'embed', 'horiz', 'break', 'blockquote', 'list', 'newline', 'paragraph', 'revise', 'tighten') as $rule )
{
$wiki->disableRule($rule);
}
}
$result = $wiki->transform($text, 'Xhtml');
// HTML fixes
$result = preg_replace('#<tr>([\s]*?)<\/tr>#is', '', $result);
$result = preg_replace('#<p>([\s]*?)<\/p>#is', '', $result);
$result = preg_replace('#<br />([\s]*?)<table#is', '<table', $result);
$result = str_replace("<pre><code>\n", "<pre><code>", $result);
$result = preg_replace("/<p><table([^>]*?)><\/p>/", "<table\\1>", $result);
$result = str_replace("<br />\n</td>", "\n</td>", $result);
$result = str_replace("<p><tr>", "<tr>", $result);
$result = str_replace("<tr><br />", "<tr>", $result);
$result = str_replace("</tr><br />", "</tr>", $result);
$result = str_replace("</table><br />", "</table>", $result);
$result = preg_replace('/<\/table>$/', "</table><br /><br />", $result);
$result = str_replace("<p></div></p>", "</div>", $result);
$result = str_replace("<p></table></p>", "</table>", $result);
if ( !($flags & RENDER_BLOCKONLY) )
{
$code = $plugins->setHook('render_wikiformat_post');
foreach ( $code as $cmd )
{
eval($cmd);
}
}
// Reinsert <nowiki> sections
for($i=0;$i<$nw;$i++)
{
$result = str_replace('{NOWIKI:'.$random_id.':'.$i.'}', $nowiki[1][$i], $result);
}
// Reinsert PHP
for($i=0;$i<$php;$i++)
{
$result = str_replace('{PHP:'.$random_id.':'.$i.'}', '<?php'.$phpsec[1][$i].'?>', $result);
}
profiler_log("RenderMan: finished wikitext render");
return $result;
}
public static function wikiFormat($message, $filter_links = true, $do_params = false, $plaintext = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
return RenderMan::next_gen_wiki_format($message, $plaintext, $filter_links, $do_params);
}
public static function destroy_javascript($message, $_php = false)
{
$message = preg_replace('#<(script|object|applet|embed|iframe|frame|form|input|select)(.*?)>#is', '<\\1\\2>', $message);
$message = preg_replace('#</(script|object|applet|embed|iframe|frame|form|input|select)(.*?)>#is', '</\\1\\2>', $message);
$message = preg_replace('#(javascript|script|activex|chrome|about|applet):#is', '\\1:', $message);
if ( $_php )
{
// Left in only for compatibility
$message = preg_replace('#<(.*?)>#is', '<\\1>', $message);
$message = preg_replace('#<(.*?)>#is', '<\\1>', $message);
$message = preg_replace('#<(\?|\?php|%)(.*?)(\?|%)>#is', '<\\1\\2\\3>', $message);
// strip <a href="foo" onclick="bar();">-type attacks
$message = preg_replace('#<([a-zA-Z:\-]+) (.*?)on([A-Za-z]*)=(.*?)>#is', '<\\1\\2on\\3=\\4>', $message);
}
return $message;
}
public static function strip_php($message)
{
return RenderMan::destroy_javascript($message, true);
}
public static function sanitize_html($text)
{
$text = htmlspecialchars($text);
$allowed_tags = Array('b', 'i', 'u', 'pre', 'code', 'tt', 'br', 'p', 'nowiki', '!--([\w\W]+)--');
foreach($allowed_tags as $t)
{
$text = preg_replace('#<'.$t.'>(.*?)</'.$t.'>#is', '<'.$t.'>\\1</'.$t.'>', $text);
$text = preg_replace('#<'.$t.' />#is', '<'.$t.' />', $text);
$text = preg_replace('#<'.$t.'>#is', '<'.$t.'>', $text);
}
return $text;
}
/**
* Reverse-renders a blob of text (converts it from XHTML back to wikitext) by using parser hints and educated guesses.
* @param string XHTML
* @return string Wikitext
*/
public static function reverse_render($text)
{
// convert \r\n to \n
$text = str_replace("\r\n", "\n", $text);
// Separate certain block level elements onto their own lines. This tidies up the tag
// soup that TinyMCE sometimes produces.
$block_elements = array('h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p', 'div', 'table', 'ul', 'pre');
$block_elements = implode('|', $block_elements);
$regex = "#(</(?:$block_elements)>)\n?<($block_elements)(>| .+?>)#i";
$text = preg_replace($regex, "$1\n\n<$2$3", $text);
$text = self::reverse_process_parser_hints($text);
$text = self::reverse_process_headings($text);
$text = self::reverse_process_lists($text);
$text = self::reverse_process_tables($text);
// Lastly, strip out paragraph tags.
$text = preg_replace('|^ *<p>(.+?)</p> *$|m', "\\1", $text);
return $text;
}
public static function reverse_process_parser_hints($text)
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( !preg_match_all('|<!--#([a-z0-9_]+)(?: (.+?))?-->([\w\W]*?)<!--#/\\1-->|s', $text, $matches) )
return $text;
foreach ( $matches[0] as $i => $match )
{
$tag =& $matches[1][$i];
$attribs =& $matches[2][$i];
$inner =& $matches[3][$i];
$attribs = self::reverse_process_hint_attribs($attribs);
switch($tag)
{
case 'smiley':
case 'internallink':
case 'imagelink':
if ( isset($attribs['code']) )
{
$text = str_replace($match, $attribs['code'], $text);
}
else if ( isset($attribs['src']) )
{
$text = str_replace($match, $attribs['src'], $text);
}
break;
}
}
return $text;
}
public static function reverse_process_hint_attribs($attribs)
{
$return = array();
if ( !preg_match_all('/([a-z0-9_-]+)="([^"]+?)"/', $attribs, $matches) )
return array();
foreach ( $matches[0] as $i => $match )
{
$name =& $matches[1][$i];
$value =& $matches[2][$i];
$value = base64_decode($value);
$return[$name] = $value;
}
return $return;
}
/**
* Escapes a string so that it's safe to use as an attribute in a parser hint.
* @param string
* @return string
*/
public static function escape_parser_hint_attrib($text)
{
return base64_encode($text);
}
public static function reverse_process_headings($text)
{
if ( !preg_match_all('|^<h([1-6])(?: id="toc[0-9]+")?>(.*?)</h\\1>$|m', $text, $matches) )
return $text;
foreach ( $matches[0] as $i => $match )
{
// generate heading tag
$heading_size = intval($matches[1][$i]);
$eq = '';
for ( $j = 0; $j < $heading_size; $j++ )
$eq .= '=';
$heading =& $matches[2][$i];
$tag = "$eq $heading $eq";
$text = str_replace($match, $tag, $text);
}
return $text;
}
public static function reverse_process_lists($text)
{
if ( !preg_match('!(</?(?:ul|ol|li)>)!', $text) )
return $text;
$split = preg_split('!(</?(?:ul|ol|li)>)!', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
$stack_height = 0;
$current_list = '';
$old_current_list = '';
$spaces = '';
$marker = '*';
$list_id = 0;
$just_terminated = false;
foreach ( $split as $tag )
{
switch($tag)
{
case '<ul>':
case '<ol>':
$stack_height++;
$just_terminated = false;
if ( $stack_height > 1 )
$spaces .= $marker;
$marker = ( $tag == 'ol' ) ? '#' : '*';
if ( $stack_height > 1 )
$current_list .= "\n";
break;
case '</ul>':
case '</ol>':
$stack_height--;
$spaces = substr($spaces, 1);
if ( $stack_height == 0 )
{
// rotate
$text = str_replace_once("{$old_current_list}{$tag}", trim($current_list), $text);
$current_list = '';
$old_current_list = '';
}
$just_terminated = true;
break;
case '<li>':
if ( $stack_height < 1 )
break;
$current_list .= "{$spaces}{$marker} ";
break;
case '</li>':
if ( $stack_height < 1 )
break;
if ( !$just_terminated )
$current_list .= "\n";
$just_terminated = false;
break;
default:
if ( $stack_height > 0 )
{
$current_list .= trim($tag);
}
break;
}
if ( $stack_height > 0 )
{
$old_current_list .= $tag;
}
}
return $text;
}
public static function reverse_process_tables($text)
{
return $text;
}
/**
* Parses internal links (wikilinks) in a block of text.
* @param string Text to process
* @param string Optional. If included will be used as a template instead of using the default syntax.
* @return string
*/
public static function parse_internal_links($text, $tplcode = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( is_string($tplcode) )
{
$parser = $template->makeParserText($tplcode);
}
// stage 1 - links with alternate text
preg_match_all('/\[\[([^\[\]<>\{\}\|]+)\|(.+?)\]\]/', $text, $matches);
foreach ( $matches[0] as $i => $match )
{
list($page_id, $namespace) = RenderMan::strToPageID($matches[1][$i]);
if ( ($pos = strrpos($page_id, '#')) !== false )
{
$hash = substr($page_id, $pos);
$page_id = substr($page_id, 0, $pos);
}
else
{
$hash = '';
}
$pid_clean = $paths->nslist[$namespace] . sanitize_page_id($page_id);
$url = makeUrl($pid_clean, false, true) . $hash;
$inner_text = $matches[2][$i];
$quot = '"';
$exists = ( isPage($pid_clean) ) ? '' : ' class="wikilink-nonexistent"';
if ( $tplcode )
{
$parser->assign_vars(array(
'HREF' => $url,
'FLAGS' => $exists,
'TEXT' => $inner_text
));
$link = $parser->run();
}
else
{
$omatch = self::escape_parser_hint_attrib($match);
$link = "<!--#internallink src=\"$omatch\" --><a href={$quot}{$url}{$quot}{$exists}>{$inner_text}</a><!--#/internallink-->";
}
$text = str_replace($match, $link, $text);
}
// stage 2 - links with no alternate text
preg_match_all('/\[\[([^\[\]<>\{\}\|]+)\]\]/', $text, $matches);
foreach ( $matches[0] as $i => $match )
{
list($page_id, $namespace) = RenderMan::strToPageID($matches[1][$i]);
$pid_clean = $paths->nslist[$namespace] . sanitize_page_id($page_id);
$url = makeUrl($pid_clean, false, true);
$inner_text = ( isPage($pid_clean) ) ? htmlspecialchars(get_page_title($pid_clean)) : htmlspecialchars($matches[1][$i]);
$quot = '"';
$exists = ( isPage($pid_clean) ) ? '' : ' class="wikilink-nonexistent"';
if ( $tplcode )
{
$parser->assign_vars(array(
'HREF' => $url,
'FLAGS' => $exists,
'TEXT' => $inner_text
));
$link = $parser->run();
}
else
{
$omatch = self::escape_parser_hint_attrib($match);
$link = "<!--#internallink src=\"$omatch\" --><a href={$quot}{$url}{$quot}{$exists}>{$inner_text}</a><!--#/internallink-->";
}
$text = str_replace($match, $link, $text);
}
return $text;
}
/**
* Parses a partial template tag in wikitext, and return an array with the parameters.
* @param string The portion of the template tag that contains the parameters.
* @example
* <code>
foo = lorem ipsum
bar = dolor sit amet
* </code>
* @return array Example:
* [foo] => lorem ipsum
* [bar] => dolor sit amet
*/
public static function parse_template_vars($input, $newlinemode = true)
{
$parms = array();
$input = trim($input);
if ( $newlinemode )
{
$result = preg_match_all('/
(?:^|[\s]*)\|? # start of parameter - string start or series of spaces
[ ]*
(?:
([A-z0-9_]+) # variable name
[ ]* = [ ]* # assignment
)? # this is optional - if the parameter name is not given, a numerical index is assigned
(.+) # value
/x', trim($input), $matches);
}
else
{
$result = preg_match_all('/
(?:^|[ ]*)\| # start of parameter - string start or series of spaces
[ ]*
(?:
([A-z0-9_]+) # variable name
[ ]* = [ ]* # assignment
)? # name section is optional - if the parameter name is not given, a numerical index is assigned
([^\|]+|.+?\n[ ]*\|) # value
/x', trim($input), $matches);
}
if ( $result )
{
$pi = 0;
for ( $i = 0; $i < count($matches[0]); $i++ )
{
$matches[1][$i] = trim($matches[1][$i]);
$parmname = !empty($matches[1][$i]) ? $matches[1][$i] : strval(++$pi);
$parms[ $parmname ] = $matches[2][$i];
}
}
return $parms;
}
/**
* Processes all template tags within a block of wikitext.
* Updated in 1.0.2 to also parse template tags in the format of {{Foo |a = b |b = c |c = therefore, a}}
* @param string The text to process
* @return string Formatted text
* @example
* <code>
$text = '{{Template
| parm1 = Foo
| parm2 = Bar
}}';
$text = RenderMan::include_templates($text);
* </code>
*/
public static function include_templates($text)
{
global $db, $session, $paths, $template, $plugins; // Common objects
// $template_regex = "/\{\{([^\]]+?)((\n([ ]*?)[A-z0-9]+([ ]*?)=([ ]*?)(.+?))*)\}\}/is";
// matches:
// 1 - template name
// 2 - parameter section
$template_regex = "/
\{\{ # opening
([^\n\t\a\r]+) # template name
((?:(?:[\s]+\|?)[ ]*(?:[A-z0-9_]+)[ ]*=[ ]*?(?:.+))*) # parameters
\}\} # closing
/isxU";
if ( $count = preg_match_all($template_regex, $text, $matches) )
{
//die('<pre>' . print_r($matches, true) . '</pre>');
for ( $i = 0; $i < $count; $i++ )
{
$matches[1][$i] = sanitize_page_id($matches[1][$i]);
$newlinemode = ( substr($matches[2][$i], 0, 1) == "\n" );
$parmsection = trim($matches[2][$i]);
if ( !empty($parmsection) )
{
$parms = RenderMan::parse_template_vars($parmsection, $newlinemode);
if ( !is_array($parms) )
// Syntax error
$parms = array();
}
else
{
$parms = Array();
}
if ( $tpl_code = RenderMan::fetch_template_text($matches[1][$i]) )
{
$parser = $template->makeParserText($tpl_code);
$parser->assign_vars($parms);
$text = str_replace($matches[0][$i], $parser->run(), $text);
}
}
}
return $text;
}
/**
* Preprocesses an HTML text string prior to being sent to MySQL.
* @param string $text
* @param bool $strip_all_php - if true, strips all PHP regardless of user permissions. Else, strips PHP only if user level < USER_LEVEL_ADMIN.
*/
public static function preprocess_text($text, $strip_all_php = true, $sqlescape = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$random_id = md5( time() . mt_rand() );
$code = $plugins->setHook('render_sanitize_pre');
foreach ( $code as $cmd )
{
eval($cmd);
}
$can_do_php = ( $session->get_permissions('php_in_pages') && !$strip_all_php );
$can_do_html = $session->get_permissions('html_in_pages');
if ( $can_do_html && !$can_do_php )
{
$text = preg_replace('#<(\?|\?php|%)(.*?)(\?|%)>#is', '<\\1\\2\\3>', $text);
}
else if ( !$can_do_html && !$can_do_php )
{
$text = sanitize_html($text, true);
// If we can't do PHP, we can't do Javascript either.
$text = RenderMan::destroy_javascript($text);
}
// Strip out <nowiki> sections and PHP code
$php = preg_match_all('#(<|<)\?php(.*?)\?(>|>)#is', $text, $phpsec);
//die('<pre>'.htmlspecialchars(print_r($phpsec, true))."\n".htmlspecialchars(print_r($text, true)).'</pre>');
for($i=0;$i<sizeof($phpsec[1]);$i++)
{
$text = str_replace($phpsec[0][$i], '{PHP:'.$random_id.':'.$i.'}', $text);
}
$nw = preg_match_all('#<nowiki>(.*?)<\/nowiki>#is', $text, $nowiki);
for($i=0;$i<sizeof($nowiki[1]);$i++)
{
$text = str_replace('<nowiki>'.$nowiki[1][$i].'</nowiki>', '{NOWIKI:'.$random_id.':'.$i.'}', $text);
}
$text = str_replace('~~~~~', enano_date('G:i, j F Y (T)'), $text);
$text = str_replace('~~~~', "[[User:$session->username|$session->username]] ".enano_date('G:i, j F Y (T)'), $text);
$text = str_replace('~~~', "[[User:$session->username|$session->username]] ", $text);
$code = $plugins->setHook('render_sanitize_post');
foreach ( $code as $cmd )
{
eval($cmd);
}
// gently apply some reverse-processing to allow Text_Wiki to do magic with TOCs and stuff
$text = self::reverse_process_headings($text);
// Reinsert <nowiki> sections
for($i=0;$i<$nw;$i++)
{
$text = str_replace('{NOWIKI:'.$random_id.':'.$i.'}', '<nowiki>'.$nowiki[1][$i].'</nowiki>', $text);
}
// Reinsert PHP
for($i=0;$i<$php;$i++)
{
$phsec = ''.$phpsec[1][$i].'?php'.$phpsec[2][$i].'?'.$phpsec[3][$i].'';
if ( $strip_all_php )
$phsec = htmlspecialchars($phsec);
$text = str_replace('{PHP:'.$random_id.':'.$i.'}', $phsec, $text);
}
$text = ( $sqlescape ) ? $db->escape($text) : $text;
return $text;
}
public static function smilieyize($text, $complete_urls = false)
{
$random_id = md5( time() . mt_rand() );
// Smileys array - eventually this will be fetched from the database by
// RenderMan::initSmileys during initialization, but it will all be hardcoded for beta 2
$smileys = Array(
'O:-)' => 'face-angel.png',
'O:)' => 'face-angel.png',
'O=)' => 'face-angel.png',
':-)' => 'face-smile.png',
':)' => 'face-smile.png',
'=)' => 'face-smile-big.png',
':-(' => 'face-sad.png',
':(' => 'face-sad.png',
';(' => 'face-sad.png',
':-O' => 'face-surprise.png',
';-)' => 'face-wink.png',
';)' => 'face-wink.png',
'8-)' => 'face-glasses.png',
'8)' => 'face-glasses.png',
':-D' => 'face-grin.png',
':D' => 'face-grin.png',
'=D' => 'face-grin.png',
':-*' => 'face-kiss.png',
':*' => 'face-kiss.png',
'=*' => 'face-kiss.png',
':\'(' => 'face-crying.png',
':-|' => 'face-plain.png',
':-\\' => 'face-plain.png',
':-/' => 'face-plain.png',
':joke:' => 'face-plain.png',
']:->' => 'face-devil-grin.png',
']:->' => 'face-devil-grin.png',
':kiss:' => 'face-kiss.png',
':-P' => 'face-tongue-out.png',
':P' => 'face-tongue-out.png',
':-p' => 'face-tongue-out.png',
':p' => 'face-tongue-out.png',
':-X' => 'face-sick.png',
':X' => 'face-sick.png',
':sick:' => 'face-sick.png',
':-]' => 'face-oops.png',
':]' => 'face-oops.png',
':oops:' => 'face-oops.png',
':-[' => 'face-embarassed.png',
':[' => 'face-embarassed.png'
);
// Strip out <nowiki> sections
//return '<pre>'.htmlspecialchars($text).'</pre>';
$nw = preg_match_all('#<nowiki>(.*?)<\/nowiki>#is', $text, $nowiki);
for ( $i = 0; $i < count($nowiki[1]); $i++ )
{
$text = str_replace('<nowiki>' . $nowiki[1][$i] . '</nowiki>', '{NOWIKI:'.$random_id.':'.$i.'}', $text);
}
foreach ( $smileys as $smiley => $smiley_path )
{
$hex_smiley = hexencode($smiley, '&#x', ';');
$pfx = ( $complete_urls ) ? get_server_url() : '';
$text = str_replace(' ' . $smiley,
' <!--#smiley code="' . self::escape_parser_hint_attrib($smiley) . '"--><nowiki>
<!-- The above is a reverse-parser hint -->
<img title="' . $hex_smiley . '" alt="' . $hex_smiley . '" src="' . $pfx . scriptPath . '/images/smilies/' . $smiley_path . '"
style="border: 0;" />
</nowiki><!--#/smiley-->', $text);
}
//*/
// Reinsert <nowiki> sections
for ( $i = 0; $i < $nw; $i++ )
{
$text = str_replace('{NOWIKI:'.$random_id.':'.$i.'}', '<nowiki>'.$nowiki[1][$i].'</nowiki>', $text);
}
return $text;
}
/**
* Generates a summary of the differences between two texts, and formats it as XHTML.
* @param $str1 string the first block of text
* @param $str2 string the second block of text
* @return string
*/
public static function diff($str1, $str2)
{
global $db, $session, $paths, $template, $plugins; // Common objects
require_once(ENANO_ROOT.'/includes/diff.php');
$str1 = explode("\n", $str1);
$str2 = explode("\n", $str2);
$diff = new Diff($str1, $str2);
$renderer = new TableDiffFormatter();
return '<table class="diff">'.$renderer->format($diff).'</table>';
}
/**
* Changes wikitext image tags to HTML.
* @param string The wikitext to process
* @param array Will be overwritten with the list of HTML tags (the system uses tokens for TextWiki compatibility)
* @return string
*/
public static function process_image_tags($text, &$taglist)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$s_delim = "\xFF";
$f_delim = "\xFF";
$taglist = array();
// Wicked huh?
$ns_file = str_replace('/', '\\/', preg_quote($paths->nslist['File']));
$regex = '/
\[\[ # starting delimiter
:' . $ns_file . '([\w\s0-9_\(\)!@%\^\+\|\.-]+?\.(?:png|gif|jpg|jpeg)) # image filename
(?:(?:\|(?:.+?))*) # parameters
\]\] # ending delimiter
/ix';
preg_match_all($regex, $text, $matches);
foreach ( $matches[0] as $i => $match )
{
$full_tag =& $matches[0][$i];
$filename =& $matches[1][$i];
// apply recursion (hack? @todo could this be done with (?R) in PCRE?)
$tag_pos = strpos($text, $full_tag);
$tag_end_pos = $tag_pos + strlen($full_tag);
while ( get_char_count($full_tag, ']') < get_char_count($full_tag, '[') && $tag_end_pos < strlen($text) )
{
$full_tag .= substr($text, $tag_end_pos, 1);
$tag_end_pos++;
}
if ( $tag_end_pos > strlen($text) )
{
// discard tag, not closed fully
continue;
}
// init the various image parameters
$width = null;
$height = null;
$scale_type = null;
$raw_display = false;
$clear = null;
$caption = null;
// trim tag and parse particles
$tag_trim = rtrim(ltrim($full_tag, '['), ']');
// trim off the filename from the start of the tag
$filepart_len = 1 + strlen($paths->nslist['File']) + strlen($filename) + 1;
$tag_trim = substr($tag_trim, $filepart_len);
// explode and we should have parameters
$tag_parts = explode('|', $tag_trim);
// for each of the parameters, see if it matches a known option. If so, apply it;
// otherwise, see if a plugin reserved that parameter and if not treat it as the caption
foreach ( $tag_parts as $param )
{
switch($param)
{
case 'left':
case 'right':
$clear = $param;
break;
case 'thumb':
$scale_type = 'thumb';
break;
case 'raw':
$raw_display = true;
break;
default:
// height specification
if ( preg_match('/^([0-9]+)x([0-9]+)$/', $param, $dims) )
{
$width = intval($dims[1]);
$height = intval($dims[2]);
break;
}
// not the height, so see if a plugin took this over
// this hook requires plugins to return true if they modified anything
$code = $plugins->setHook('img_tag_parse_params');
foreach ( $code as $cmd )
{
if ( eval($cmd) )
break 2;
}
// we would have broken out by now if a plugin properly handled this,
// so just set the caption now.
$caption = $param;
break;
}
}
if ( !isPage( $paths->nslist['File'] . $filename ) )
{
$text = str_replace($full_tag, '[[' . $paths->nslist['File'] . $filename . ']]', $text);
continue;
}
if ( $scale_type == 'thumb' )
{
$r_width = 225;
$r_height = 225;
$url = makeUrlNS('Special', 'DownloadFile/' . $filename, 'preview&width=' . $r_width . '&height=' . $r_height, true);
}
else if ( !empty($width) && !empty($height) )
{
$r_width = $width;
$r_height = $height;
$url = makeUrlNS('Special', 'DownloadFile/' . $filename, 'preview&width=' . $r_width . '&height=' . $r_height, true);
}
else
{
$url = makeUrlNS('Special', 'DownloadFile/' . $filename);
}
$img_tag = '<img src="' . $url . '" ';
// if ( isset($r_width) && isset($r_height) && $scale_type != '|thumb' )
// {
// $img_tag .= 'width="' . $r_width . '" height="' . $r_height . '" ';
// }
$img_tag .= 'style="border-width: 0px; /* background-color: white; */" ';
$code = $plugins->setHook('img_tag_parse_img');
foreach ( $code as $cmd )
{
eval($cmd);
}
$img_tag .= '/>';
$s_full_tag = self::escape_parser_hint_attrib($full_tag);
$complete_tag = '<!--#imagelink src="' . $s_full_tag . '" -->';
if ( !empty($scale_type) && !$raw_display )
{
$complete_tag .= '<div class="thumbnail" ';
$clear_text = '';
if ( !empty($clear) )
{
$side = ( $clear == 'left' ) ? 'left' : 'right';
$opposite = ( $clear == 'left' ) ? 'right' : 'left';
$clear_text .= "float: $side; margin-$opposite: 20px; width: {$r_width}px;";
$complete_tag .= 'style="' . $clear_text . '" ';
}
$complete_tag .= '>';
$complete_tag .= '<a href="' . makeUrlNS('File', $filename) . '" style="display: block;">';
$complete_tag .= $img_tag;
$complete_tag .= '</a>';
$mag_button = '<a href="' . makeUrlNS('File', $filename) . '" style="display: block; float: right; clear: right; margin: 0 0 10px 10px;"><img alt="[ + ]" src="' . scriptPath . '/images/thumbnail.png" style="border-width: 0px;" /></a>';
if ( !empty($caption) )
{
$complete_tag .= $mag_button . $caption;
}
$complete_tag .= '</div>';
}
else if ( $raw_display )
{
$complete_tag .= "$img_tag";
$taglist[$i] = $complete_tag;
$repl = "{$s_delim}e_img_{$i}{$f_delim}";
$text = str_replace($full_tag, $repl, $text);
continue;
}
else
{
$complete_tag .= '<a href="' . makeUrlNS('File', $filename) . '" style="display: block;"';
$code = $plugins->setHook('img_tag_parse_link');
foreach ( $code as $cmd )
{
eval($cmd);
}
$complete_tag .= '>';
$complete_tag .= $img_tag;
$complete_tag .= '</a>';
}
$complete_tag .= "<!--#/imagelink-->";
$taglist[$i] = $complete_tag;
/*
$pos = strpos($text, $full_tag);
while(true)
{
$check1 = substr($text, $pos, 3);
$check2 = substr($text, $pos, 1);
if ( $check1 == '<p>' || $pos == 0 || $check2 == "\n" )
{
// die('found at pos '.$pos);
break;
}
$pos--;
}
*/
/*
$repl = "{$s_delim}e_img_{$i}{$f_delim}";
$text = substr($text, 0, $pos) . $repl . substr($text, $pos);
$text = str_replace($full_tag, '', $text);
*/
$text = str_replace_once($full_tag, $complete_tag, $text);
unset($full_tag, $filename, $scale_type, $width, $height, $clear, $caption, $r_width, $r_height);
}
// if ( count($matches[0]) > 0 )
// die('<pre>' . htmlspecialchars($text) . '</pre>');
return $text;
}
/**
* Finalizes processing of image tags.
* @param string The preprocessed text
* @param array The list of image tags created by RenderMan::process_image_tags()
*/
public static function process_imgtags_stage2($text, $taglist)
{
$s_delim = "\xFF";
$f_delim = "\xFF";
foreach ( $taglist as $i => $tag )
{
$repl = "{$s_delim}e_img_{$i}{$f_delim}";
$text = str_replace($repl, $tag, $text);
}
return $text;
}
}
?>