<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Version 1.0 (Banshee)
* render.php - handles fetching pages and parsing them into HTML
* Copyright (C) 2006-2007 Dan Fuhry
*
* 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 {
function strToPageID($string)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$k = array_keys($paths->nslist);
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, $ns);
}
function getPage($page_id, $namespace, $wiki = 1, $smilies = true, $filter_links = true, $redir = true, $render = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
dc_here('render: page requested<br />ID/namespace: '."$page_id, $namespace<br />Wiki mode: $wiki<br />Smilies: ".(string)$smilies."<br />Allow redirects: ".(string)$redir);
$perms =& $session;
if ( $page_id != $paths->cpage['urlname_nons'] || $namespace != $paths->namespace )
{
unset($perms);
unset($perms); // PHP <5.1.5 Zend bug
$perms = $session->fetch_page_acl($page_id, $namespace);
}
if(!$perms->get_permissions('read'))
return 'Access denied ('.$paths->nslist[$namespace].$page_id.')';
if($wiki == 0 || $render == false)
{
if(!$perms->get_permissions('view_source'))
{
return 'Access denied ('.$paths->nslist[$namespace].$page_id.')';
}
}
$q = $db->sql_query('SELECT page_text,char_tag FROM '.table_prefix.'page_text WHERE page_id=\''.$db->escape($page_id).'\' AND namespace=\''.$db->escape($namespace).'\';');
if ( !$q )
{
$db->_die('Method called was: RenderMan::getPage(\''.$page_id.'\', \''.$namespace.'\');.');
}
if ( $db->numrows() < 1 )
{
return false;
}
$row = $db->fetchrow();
$db->free_result();
$message = $row['page_text'];
$chartag = $row['char_tag'];
unset($row); // Free some memory
if ( preg_match('#^\#redirect \[\[(.+?)\]\]#', $message, $m) && $redir && !isset($_GET['redirect']) || ( isset($_GET['redirect']) && $_GET['redirect'] != 'no' ) )
{
dc_here('render: looks like a redirect page to me...');
$old = $paths->cpage;
$a = RenderMan::strToPageID($m[1]);
$a[0] = str_replace(' ', '_', $a[0]);
$pageid = str_replace(' ', '_', $paths->nslist[$a[1]] . $a[0]);
$paths->page = $pageid;
$paths->cpage = $paths->pages[$pageid];
//die('<pre>'.print_r($paths->cpage,true).'</pre>');
dc_here('render: wreckin\' $template, and reloading the theme vars to match the new page<br />This might get messy!');
unset($template);
unset($GLOBALS['template']);
$GLOBALS['template'] = new template();
global $template;
$template->template(); // Tear down and rebuild the template parser
$template->load_theme($session->theme, $session->style);
$data = '<div><small>(Redirected from <a href="'.makeUrlNS($old['namespace'], $old['urlname_nons'], 'redirect=no', true).'">'.$old['name'].'</a>)</small></div>'.RenderMan::getPage($a[0], $a[1], $wiki, $smilies, $filter_links, false /* Enforces a maximum of one redirect */);
return $data;
}
else if(preg_match('#^\#redirect \[\[(.+?)\]\]#', $message, $m) && isset($_GET['redirect']) && $_GET['redirect'] == 'no')
{
dc_here('render: looks like a redirect page to me...');
dc_here('render: skipping redirect as requested on URI');
preg_match('#^\#redirect \[\[(.+)\]\]#', $message, $m);
$m[1] = str_replace(' ', '_', $m[1]);
$message = preg_replace('#\#redirect \[\[(.+)\]\]#', '<nowiki><div class="mdg-infobox"><table border="0" width="100%" cellspacing="0" cellpadding="0"><tr><td valign="top"><img alt="Cute wet-floor icon" src="'.scriptPath.'/images/redirector.png" /></td><td valign="top" style="padding-left: 10px;"><b>This page is a <i>redirector</i>.</b><br />This means that this page will not show its own content by default. Instead it will display the contents of the page it redirects to.<br /><br />To create a redirect page, make the <i>first characters</i> in the page content <tt>#redirect [[Page_ID]]</tt>. For more information, see the Enano <a href="http://enanocms.org/Help:Wiki_formatting">Wiki formatting guide</a>.<br /><br />This page redirects to <a href="'.makeUrl($m[1]).'">'.$paths->pages[$m[1]]['name'].'</a>.</td></tr></table></div><br /><hr style="margin-left: 1em; width: 200px;" /></nowiki>', $message);
}
$session->disallow_password_grab();
dc_here('render: alright, got the text, formatting...');
return ($render) ? RenderMan::render($message, $wiki, $smilies, $filter_links) : $message;
}
function getTemplate($id, $parms)
{
global $db, $session, $paths, $template, $plugins; // Common objects
dc_here('render: template requested: '.$id);
if(!isset($paths->pages[$paths->nslist['Template'].$id]))
{
return '[['.$paths->nslist['Template'].$id.']]';
}
if(isset($paths->template_cache[$id]))
{
$text = $paths->template_cache[$id];
}
else
{
$text = RenderMan::getPage($id, 'Template', 0, true, true, 0);
$paths->template_cache[$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);
}
$text = RenderMan::include_templates($text);
return $text;
}
function fetch_template_text($id)
{
global $db, $session, $paths, $template, $plugins; // Common objects
dc_here('render: template raw data requested: '.$id);
if(!isset($paths->pages[$paths->nslist['Template'].$id]))
{
return '[['.$paths->nslist['Template'].$id.']]';
}
if(isset($paths->template_cache[$id]))
{
$text = $paths->template_cache[$id];
}
else
{
$text = RenderMan::getPage($id, 'Template', 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 $text;
}
function render($text, $wiki = 1, $smilies = true, $filter_links = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
if($smilies)
{
$text = RenderMan::smilieyize($text);
}
if($wiki == 1)
{
$text = RenderMan::next_gen_wiki_format($text);
}
elseif($wiki == 2)
{
$text = $template->tplWikiFormat($text);
}
return $text;
}
function PlainTextRender($text, $wiki = 1, $smilies = false, $filter_links = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
if($smilies)
{
$text = RenderMan::smilieyize($text);
}
if($wiki == 1)
{
$text = RenderMan::next_gen_wiki_format($text, true);
}
elseif($wiki == 2)
{
$text = $template->tplWikiFormat($text);
}
return $text;
}
function next_gen_wiki_format($text, $plaintext = false, $filter_links = true, $do_params = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$random_id = md5( time() . mt_rand() );
// Strip out <nowiki> sections and PHP code
$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);
}
$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 = preg_replace('/<noinclude>(.*?)<\/noinclude>/is', '\\1', $text);
if ( $paths->namespace == 'Template' )
{
$text = preg_replace('/<nodisplay>(.*?)<\/nodisplay>/is', '', $text);
}
if ( !$plaintext )
{
// Process images
$text = RenderMan::process_image_tags($text, $taglist);
}
if($do_params)
{
preg_match_all('#\(_([0-9]+)_\)#', $text, $matchlist);
foreach($matchlist[1] as $m)
{
$text = str_replace('(_'.$m.'_)', $paths->getParam((int)$m), $text);
}
}
$text = RenderMan::include_templates($text);
$text = process_tables($text);
$wiki =& Text_Wiki::singleton('Mediawiki');
if($plaintext)
{
$wiki->setRenderConf('Plain', 'wikilink', 'view_url', contentPath);
$result = $wiki->transform($text, 'Plain');
}
else
{
$wiki->setRenderConf('Xhtml', 'wikilink', 'view_url', contentPath);
$wiki->setRenderConf('Xhtml', 'Url', 'css_descr', 'external');
$result = $wiki->transform($text, 'Xhtml');
}
if ( !$plaintext )
{
$result = RenderMan::process_imgtags_stage2($result, $taglist);
}
// Reinsert <nowiki> sections
for($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);
}
return $result;
}
function wikiFormat($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);
$random_id = md5( time() . mt_rand() );
// Strip out <nowiki> sections
$nw = preg_match_all('#<nowiki>(.*?)<\/nowiki>#is', $message, $nowiki);
if(!$plaintext)
{
//return '<pre>'.print_r($nowiki,true).'</pre>';
for($i=0;$i<sizeof($nowiki[1]);$i++)
{
$message = str_replace('<nowiki>'.$nowiki[1][$i].'</nowiki>', '{NOWIKI:'.$random_id.':'.$i.'}', $message);
}
$message = preg_replace('/<noinclude>(.*?)<\/noinclude>/is', '\\1', $message);
//return '<pre>'.htmlspecialchars($message).'</pre>';
$message = RenderMan::process_image_tags($message);
}
if($do_params)
{
preg_match_all('#\(_([0-9]+)_\)#', $message, $matchlist);
foreach($matchlist[1] as $m)
{
$message = str_replace('(_'.$m.'_)', $paths->getParam((int)$m), $message);
}
}
$message = RenderMan::include_templates($message);
// Reinsert <nowiki> sections
for($i=0;$i<$nw;$i++)
{
$message = str_replace('{NOWIKI:'.$random_id.':'.$i.'}', '<nowiki>'.$nowiki[1][$i].'</nowiki>', $message);
}
$message = process_tables($message);
//if($message2 != $message) return '<pre>'.htmlspecialchars($message2).'</pre>';
//$message = str_replace(array('<table>', '</table>'), array('<nowiki><table>', '</table></nowiki>'), $message);
$wiki =& Text_Wiki::singleton('Mediawiki');
if($plaintext)
{
$wiki->setRenderConf('Plain', 'wikilink', 'view_url', contentPath);
$result = $wiki->transform($message, 'Plain');
} else {
$wiki->setRenderConf('Xhtml', 'wikilink', 'view_url', contentPath);
$wiki->setRenderConf('Xhtml', 'Url', 'css_descr', 'external');
$result = $wiki->transform($message, '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></p>", "</table>", $result);
$result = str_replace("</table><br />", "</table>", $result);
$result = preg_replace('/<\/table>$/', "</table><br /><br />", $result);
$result = str_replace('<nowiki>', '<nowiki>', $result);
$result = str_replace('</nowiki>', '</nowiki>', $result);
return $result;
}
function destroy_javascript($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 $message;
}
function strip_php($message)
{
return RenderMan::destroy_javascript($message, true);
}
function sanitize_html($text)
{
$text = htmlspecialchars($text);
$allowed_tags = Array('b', 'i', 'u', 'pre', 'code', 'tt', 'br', 'p', 'nowiki', '!--([^.]+)--');
foreach($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;
}
/* *
* Replaces template inclusions with the templates
* @param string $message The text to format
* @return string
* /
function old_include_templates($message)
{
$random_id = md5( time() . mt_rand() );
preg_match_all('#\{\{(.+?)\}\}#s', $message, $matchlist);
foreach($matchlist[1] as $m)
{
$mn = $m;
// Strip out wikilinks and re-add them after the explosion (because of the "|")
preg_match_all('#\[\[(.+?)\]\]#i', $m, $linklist);
//echo '<pre>'.print_r($linklist, true).'</pre>';
for($i=0;$i<sizeof($linklist[1]);$i++)
{
$mn = str_replace('[['.$linklist[1][$i].']]', '{WIKILINK:'.$random_id.':'.$i.'}', $mn);
}
$ar = explode('|', $mn);
for($j=0;$j<sizeof($ar);$j++)
{
for($i=0;$i<sizeof($linklist[1]);$i++)
{
$ar[$j] = str_replace('{WIKILINK:'.$random_id.':'.$i.'}', '[['.$linklist[1][$i].']]', $ar[$j]);
}
}
$tp = $ar[0];
unset($ar[0]);
$tp = str_replace(' ', '_', $tp);
$message = str_replace('{{'.$m.'}}', RenderMan::getTemplate($tp, $ar), $message);
}
return $message;
}
*/
/**
* Parses a partial template tag in wikitext, and return an array with the parameters.
* @param string The portion of the template tag that contains the parameters. Example:
* <code>
* foo = lorem ipsum
* bar = dolor sit amet
* </code>
* @return array Example:
* [foo] => lorem ipsum
* [bar] => dolor sit amet
*/
function parse_template_vars($input)
{
$input = explode("\n", trim( $input ));
$parms = Array();
$current_line = '';
$current_parm = '';
foreach ( $input as $num => $line )
{
if ( preg_match('/^([ ]*?)([A-z0-9_]+?)([ ]*?)=([ ]*?)(.+?)$/i', $line, $matches) )
{
$parm =& $matches[2];
$text =& $matches[5];
if ( $parm == $current_parm )
{
$current_line .= $text;
}
else
{
// New parameter
if ( $current_parm != '' )
$parms[$current_parm] = $current_line;
$current_line = $text;
$current_parm = $parm;
}
}
else if ( $num == 0 )
{
// Syntax error
return false;
}
else
{
$current_line .= "\n$line";
}
}
if ( !empty($current_parm) && !empty($current_line) )
{
$parms[$current_parm] = $current_line;
}
return $parms;
}
/**
* Processes all template tags within a block of wikitext.
* @param string The text to process
* @return string Formatted text
* @example
* <code>
$text = '{{Template
parm1 = Foo
parm2 = Bar
}}';
$text = include_templates($text);
* </code>
*/
function include_templates($text)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$template_regex = "/\{\{([A-z0-9_-]+?)((\n([ ]*?)[A-z0-9]+([ ]*?)=([ ]*?)(.+?))*)\}\}/is";
if ( $count = preg_match_all($template_regex, $text, $matches) )
{
for ( $i = 0; $i < $count; $i++ )
{
$parmsection = trim($matches[2][$i]);
if ( !empty($parmsection) )
{
$parms = RenderMan::parse_template_vars($parmsection);
foreach ( $parms as $j => $parm )
{
$parms[$j] = $parm;
}
}
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 $strip_all_php - if true, strips all PHP regardless of user permissions. Else, strips PHP only if user level < USER_LEVEL_ADMIN.
*/
function preprocess_text($text, $strip_all_php = true, $sqlescape = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$random_id = md5( time() . mt_rand() );
$can_do_php = ( $session->get_permissions('php_in_pages') && !$strip_all_php );
if ( !$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('~~~~~', date('G:i, j F Y (T)'), $text);
$text = str_replace('~~~~', "[[User:$session->username|$session->username]] ".date('G:i, j F Y (T)'), $text);
$text = str_replace('~~~', "[[User:$session->username|$session->username]] ", $text);
// Reinsert <nowiki> sections
for($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 $text;
}
function smilieyize($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',
':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'
);
/*
$keys = array_keys($smileys);
foreach($keys as $k)
{
$regex1 = '#([\W]+)'.preg_quote($k).'([\s\n\r\.]+)#s';
$regex2 = '\\1<img alt="'.$k.'" title="'.$k.'" src="'.scriptPath.'/images/smilies/'.$smileys[$k].'" style="border: 0;" />\\2';
$text = preg_replace($regex1, $regex2, $text);
}
*/
// Strip out <nowiki> sections
//return '<pre>'.htmlspecialchars($text).'</pre>';
$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);
}
$keys = array_keys($smileys);
foreach($keys as $k)
{
$t = str_hex($k);
$t = explode(' ', $t);
$s = '';
foreach($t as $b)
{
$s.='&#x'.$b.';';
}
$pfx = ( $complete_urls ) ? 'http' . ( isset($_SERVER['HTTPS']) ? 's' : '' ) . '://'.$_SERVER['HTTP_HOST'] : '';
$text = str_replace(' '.$k, ' <nowiki><img title="'.$s.'" alt="'.$s.'" src="'.$pfx.scriptPath.'/images/smilies/'.$smileys[$k].'" style="border: 0;" /></nowiki>', $text);
}
//*/
// Reinsert <nowiki> sections
for($i=0;$i<$nw;$i++)
{
$text = str_replace('{NOWIKI:'.$random_id.':'.$i.'}', '<nowiki>'.$nowiki[1][$i].'</nowiki>', $text);
}
return $text;
}
/*
* **** DEPRECATED ****
* Replaces some critical characters in a string with MySQL-safe equivalents
* @param $text string the text to escape
* @return array key 0 is the escaped text, key 1 is the character tag
* /
function escape_page_text($text)
{
$char_tag = md5(microtime() . mt_rand());
$text = str_replace("'", "{APOS:$char_tag}", $text);
$text = str_replace('"', "{QUOT:$char_tag}", $text);
$text = str_replace("\\", "{SLASH:$char_tag}", $text);
return Array($text, $char_tag);
}
*/
/* **** DEPRECATED ****
* Reverses the result of RenderMan::escape_page_text().
* @param $text string the text to unescape
* @param $char_tag string the character tag
* @return string
* /
function unescape_page_text($text, $char_tag)
{
$text = str_replace("{APOS:$char_tag}", "'", $text);
$text = str_replace("{QUOT:$char_tag}", '"', $text);
$text = str_replace("{SLASH:$char_tag}", "\\", $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 $str2 string the second block of text
* @return string
*/
function diff($str1, $str2)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$str1 = explode("\n", $str1);
$str2 = explode("\n", $str2);
$diff = new Diff($str1, $str2);
$renderer = new TableDiffFormatter();
return '<table class="diff">'.$renderer->format($diff).'</table>';
}
/**
* Changes wikitext image tags to HTML.
* @param string The wikitext to process
* @param array Will be overwritten with the list of HTML tags (the system uses tokens for TextWiki compatibility)
* @return string
*/
function process_image_tags($text, &$taglist)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$s_delim = "\xFF";
$f_delim = "\xFF";
$taglist = array();
// Wicked huh?
$regex = '/\[\[:' . $paths->nslist['File'] . '([\w\s0-9_\(\)!@%\^\+\|\.-]+?)((\|thumb)|(\|([0-9]+)x([0-9]+)))?(\|left|\|right)?(\|(.+))?\]\]/i';
preg_match_all($regex, $text, $matches);
foreach ( $matches[0] as $i => $match )
{
$full_tag =& $matches[0][$i];
$filename =& $matches[1][$i];
$scale_type =& $matches[2][$i];
$width =& $matches[5][$i];
$height =& $matches[6][$i];
$clear =& $matches[7][$i];
$caption =& $matches[8][$i];
if ( !isPage( $paths->nslist['File'] . $filename ) )
{
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;" ';
$img_tag .= '/>';
$complete_tag = '';
if ( !empty($scale_type) )
{
$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;";
$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) )
{
$cap = substr($caption, 1);
$complete_tag .= $mag_button . $cap;
}
$complete_tag .= '</div>';
}
else
{
$complete_tag .= '<a href="' . makeUrlNS('File', $filename) . '" style="display: block;">';
$complete_tag .= $img_tag;
$complete_tag .= '</a>';
}
$complete_tag .= "\n\n";
$taglist[$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, '', $text);
unset($full_tag, $filename, $scale_type, $width, $height, $clear, $caption, $r_width, $r_height);
}
return $text;
}
/**
* Finalizes processing of image tags.
* @param string The preprocessed text
* @param array The list of image tags created by RenderMan::process_image_tags()
*/
function process_imgtags_stage2($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;
}
}
?>