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<?php
/**
* Loads various functions used to parse posts.
*
* @copyright (C) 2008-2016 PunBB, partially based on code (C) 2008-2009 FluxBB.org
* @license http://www.gnu.org/licenses/gpl.html GPL version 2 or higher
* @package PunBB
*/
// Make sure no one attempts to run this script "directly"
if (!defined('FORUM'))
exit;
// Load the IDNA class for international url handling
if (defined('FORUM_SUPPORT_PCRE_UNICODE') && defined('FORUM_ENABLE_IDNA'))
{
require FORUM_ROOT.'include/idna/idna_convert.class.php';
}
// Here you can add additional smilies if you like (please note that you must escape singlequote and backslash)
$smilies = array(':)' => 'smile.png', '=)' => 'smile.png', ':|' => 'neutral.png', '=|' => 'neutral.png', ':(' => 'sad.png', '=(' => 'sad.png', ':D' => 'big_smile.png', '=D' => 'big_smile.png', ':o' => 'yikes.png', ':O' => 'yikes.png', ';)' => 'wink.png', ':/' => 'hmm.png', ':P' => 'tongue.png', ':p' => 'tongue.png', ':lol:' => 'lol.png', ':mad:' => 'mad.png', ':rolleyes:' => 'roll.png', ':cool:' => 'cool.png');
($hook = get_hook('ps_start')) ? eval($hook) : null;
//
// Make sure all BBCodes are lower case and do a little cleanup
//
function preparse_bbcode($text, &$errors, $is_signature = false)
{
global $forum_config;
$return = ($hook = get_hook('ps_preparse_bbcode_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
if ($is_signature)
{
global $lang_profile;
if (preg_match('#\[quote(=(&quot;|"|\'|)(.*)\\1)?\]|\[/quote\]|\[code\]|\[/code\]|\[list(=([1a\*]))?\]|\[/list\]#i', $text))
$errors[] = $lang_profile['Signature quote/code/list'];
}
if ($forum_config['p_sig_bbcode'] == '1' && $is_signature || $forum_config['p_message_bbcode'] == '1' && !$is_signature)
{
// If the message contains a code tag we have to split it up (text within [code][/code] shouldn't be touched)
if (strpos($text, '[code]') !== false && strpos($text, '[/code]') !== false)
{
list($inside, $outside) = split_text($text, '[code]', '[/code]', $errors);
$text = implode("\x1", $outside);
}
// Tidy up lists
$pattern_callback = '%\[list(?:=([1a*]))?+\]((?:(?>.*?(?=\[list(?:=[1a*])?+\]|\[/list\]))|(?R))*)\[/list\]%is';
$replace_callback = 'preparse_list_tag($matches[2], $matches[1], $errors)';
$text = preg_replace_callback($pattern_callback, create_function('$matches', 'return '.$replace_callback.';'), $text);
$text = str_replace('*'."\0".']', '*]', $text);
if ($forum_config['o_make_links'] == '1')
{
$text = do_clickable($text, defined('FORUM_SUPPORT_PCRE_UNICODE'));
}
// If we split up the message before we have to concatenate it together again (code tags)
if (isset($inside))
{
$outside = explode("\x1", $text);
$text = '';
$num_tokens = count($outside);
for ($i = 0; $i < $num_tokens; ++$i)
{
$text .= $outside[$i];
if (isset($inside[$i]))
$text .= '[code]'.$inside[$i].'[/code]';
}
}
$temp_text = false;
if (empty($errors))
$temp_text = preparse_tags($text, $errors, $is_signature);
if ($temp_text !== false)
$text = $temp_text;
// Remove empty tags
while ($new_text = preg_replace('/\[(b|u|i|h|colou?r|quote|code|img|url|email|list)(?:\=[^\]]*)?\]\[\/\1\]/', '', $text))
{
if ($new_text != $text)
$text = $new_text;
else
break;
}
}
$return = ($hook = get_hook('ps_preparse_bbcode_end')) ? eval($hook) : null;
if ($return !== null)
return $return;
return forum_trim($text);
}
//
// Check the structure of bbcode tags and fix simple mistakes where possible
//
function preparse_tags($text, &$errors, $is_signature = false)
{
global $lang_common, $forum_config;
// Start off by making some arrays of bbcode tags and what we need to do with each one
// List of all the tags
$tags = array('quote', 'code', 'b', 'i', 'u', 'color', 'colour', 'url', 'email', 'img', 'list', '*', 'h');
// List of tags that we need to check are open (You could not put b,i,u in here then illegal nesting like [b][i][/b][/i] would be allowed)
$tags_opened = $tags;
// and tags we need to check are closed (the same as above, added it just in case)
$tags_closed = $tags;
// Tags we can nest and the depth they can be nested to (only quotes )
$tags_nested = array('quote' => $forum_config['o_quote_depth'], 'list' => 5, '*' => 5);
// Tags to ignore the contents of completely (just code)
$tags_ignore = array('code');
// Block tags, block tags can only go within another block tag, they cannot be in a normal tag
$tags_block = array('quote', 'code', 'list', 'h', '*');
// Inline tags, we do not allow new lines in these
$tags_inline = array('b', 'i', 'u', 'color', 'colour', 'h');
// Tags we trim interior space
$tags_trim = array('img');
// Tags we remove quotes from the argument
$tags_quotes = array('url', 'email', 'img');
// Tags we limit bbcode in
$tags_limit_bbcode = array(
'*' => array('b', 'i', 'u', 'color', 'colour', 'url', 'email', 'list', 'img'),
'list' => array('*'),
'url' => array('b', 'i', 'u', 'color', 'colour', 'img'),
'email' => array('b', 'i', 'u', 'color', 'colour', 'img'),
'img' => array()
);
// Tags we can automatically fix bad nesting
$tags_fix = array('quote', 'b', 'i', 'u', 'color', 'colour', 'url', 'email', 'h');
$return = ($hook = get_hook('ps_preparse_tags_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
$split_text = preg_split("/(\[[\*a-zA-Z0-9-\/]*?(?:=.*?)?\])/", $text, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
$open_tags = array('post');
$open_args = array('');
$opened_tag = 0;
$new_text = '';
$current_ignore = '';
$current_nest = '';
$current_depth = array();
$limit_bbcode = $tags;
foreach ($split_text as $current)
{
if ($current == '')
continue;
// Are we dealing with a tag?
if (substr($current, 0, 1) != '[' || substr($current, -1, 1) != ']')
{
// Its not a bbcode tag so we put it on the end and continue
// If we are nested too deeply don't add to the end
if ($current_nest)
continue;
$current = str_replace("\r\n", "\n", $current);
$current = str_replace("\r", "\n", $current);
if (in_array($open_tags[$opened_tag], $tags_inline) && strpos($current, "\n") !== false)
{
// Deal with new lines
$split_current = preg_split("/(\n\n+)/", $current, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
$current = '';
if (!forum_trim($split_current[0], "\n")) // the first part is a linebreak so we need to handle any open tags first
array_unshift($split_current, '');
for ($i = 1; $i < count($split_current); $i += 2)
{
$temp_opened = array();
$temp_opened_arg = array();
$temp = $split_current[$i - 1];
while (!empty($open_tags))
{
$temp_tag = array_pop($open_tags);
$temp_arg = array_pop($open_args);
if (in_array($temp_tag , $tags_inline))
{
array_push($temp_opened, $temp_tag);
array_push($temp_opened_arg, $temp_arg);
$temp .= '[/'.$temp_tag.']';
}
else
{
array_push($open_tags, $temp_tag);
array_push($open_args, $temp_arg);
break;
}
}
$current .= $temp.$split_current[$i];
$temp = '';
while (!empty($temp_opened))
{
$temp_tag = array_pop($temp_opened);
$temp_arg = array_pop($temp_opened_arg);
if (empty($temp_arg))
$temp .= '['.$temp_tag.']';
else
$temp .= '['.$temp_tag.'='.$temp_arg.']';
array_push($open_tags, $temp_tag);
array_push($open_args, $temp_arg);
}
$current .= $temp;
}
if (array_key_exists($i - 1, $split_current))
$current .= $split_current[$i - 1];
}
if (in_array($open_tags[$opened_tag], $tags_trim))
$new_text .= forum_trim($current);
else
$new_text .= $current;
continue;
}
// Get the name of the tag
$current_arg = '';
if (strpos($current, '/') === 1)
{
$current_tag = substr($current, 2, -1);
}
else if (strpos($current, '=') === false)
{
$current_tag = substr($current, 1, -1);
}
else
{
$current_tag = substr($current, 1, strpos($current, '=')-1);
$current_arg = substr($current, strpos($current, '=')+1, -1);
}
$current_tag = strtolower($current_tag);
// Is the tag defined?
if (!in_array($current_tag, $tags))
{
// Its not a bbcode tag so we put it on the end and continue
if (!$current_nest)
$new_text .= $current;
continue;
}
// We definitely have a bbcode tag.
// Make the tag string lower case
if ($equalpos = strpos($current,'='))
{
// We have an argument for the tag which we don't want to make lowercase
if (strlen(substr($current, $equalpos)) == 2)
{
// Empty tag argument
$errors[] = sprintf($lang_common['BBCode error 6'], $current_tag);
return false;
}
$current = strtolower(substr($current, 0, $equalpos)).substr($current, $equalpos);
}
else
$current = strtolower($current);
//This is if we are currently in a tag which escapes other bbcode such as code
if ($current_ignore)
{
if ('[/'.$current_ignore.']' == $current)
{
// We've finished the ignored section
$current = '[/'.$current_tag.']';
$current_ignore = '';
}
$new_text .= $current;
continue;
}
if ($current_nest)
{
// We are currently too deeply nested so lets see if we are closing the tag or not.
if ($current_tag != $current_nest)
continue;
if (substr($current, 1, 1) == '/')
$current_depth[$current_nest]--;
else
$current_depth[$current_nest]++;
if ($current_depth[$current_nest] <= $tags_nested[$current_nest])
$current_nest = '';
continue;
}
// Check the current tag is allowed here
if (!in_array($current_tag, $limit_bbcode) && $current_tag != $open_tags[$opened_tag])
{
$errors[] = sprintf($lang_common['BBCode error 3'], $current_tag, $open_tags[$opened_tag]);
return false;
}
if (substr($current, 1, 1) == '/')
{
//This is if we are closing a tag
if ($opened_tag == 0 || !in_array($current_tag, $open_tags))
{
//We tried to close a tag which is not open
if (in_array($current_tag, $tags_opened))
{
$errors[] = sprintf($lang_common['BBCode error 1'], $current_tag);
return false;
}
}
else
{
// Check nesting
while (true)
{
// Nesting is ok
if ($open_tags[$opened_tag] == $current_tag)
{
array_pop($open_tags);
array_pop($open_args);
$opened_tag--;
break;
}
// Nesting isn't ok, try to fix it
if (in_array($open_tags[$opened_tag], $tags_closed) && in_array($current_tag, $tags_closed))
{
if (in_array($current_tag, $open_tags))
{
$temp_opened = array();
$temp_opened_arg = array();
$temp = '';
while (!empty($open_tags))
{
$temp_tag = array_pop($open_tags);
$temp_arg = array_pop($open_args);
if (!in_array($temp_tag, $tags_fix))
{
// We couldn't fix nesting
$errors[] = sprintf($lang_common['BBCode error 5'], $temp_tag);
return false;
}
array_push($temp_opened, $temp_tag);
array_push($temp_opened_arg, $temp_arg);
if ($temp_tag == $current_tag)
break;
else
$temp .= '[/'.$temp_tag.']';
}
$current = $temp.$current;
$temp = '';
array_pop($temp_opened);
array_pop($temp_opened_arg);
while (!empty($temp_opened))
{
$temp_tag = array_pop($temp_opened);
$temp_arg = array_pop($temp_opened_arg);
if (empty($temp_arg))
$temp .= '['.$temp_tag.']';
else
$temp .= '['.$temp_tag.'='.$temp_arg.']';
array_push($open_tags, $temp_tag);
array_push($open_args, $temp_arg);
}
$current .= $temp;
$opened_tag--;
break;
}
else
{
// We couldn't fix nesting
$errors[] = sprintf($lang_common['BBCode error 1'], $current_tag);
return false;
}
}
else if (in_array($open_tags[$opened_tag], $tags_closed))
break;
else
{
array_pop($open_tags);
array_pop($open_args);
$opened_tag--;
}
}
}
if (in_array($current_tag, array_keys($tags_nested)))
{
if (isset($current_depth[$current_tag]))
$current_depth[$current_tag]--;
}
if (in_array($open_tags[$opened_tag], array_keys($tags_limit_bbcode)))
$limit_bbcode = $tags_limit_bbcode[$open_tags[$opened_tag]];
else
$limit_bbcode = $tags;
$new_text .= $current;
continue;
}
else
{
// We are opening a tag
if (in_array($current_tag, array_keys($tags_limit_bbcode)))
$limit_bbcode = $tags_limit_bbcode[$current_tag];
else
$limit_bbcode = $tags;
if (in_array($current_tag, $tags_block) && !in_array($open_tags[$opened_tag], $tags_block) && $opened_tag != 0)
{
// We tried to open a block tag within a non-block tag
$errors[] = sprintf($lang_common['BBCode error 3'], $current_tag, $open_tags[$opened_tag]);
return false;
}
if (in_array($current_tag, $tags_ignore))
{
// Its an ignore tag so we don't need to worry about whats inside it,
$current_ignore = $current_tag;
$new_text .= $current;
continue;
}
// Deal with nested tags
if (in_array($current_tag, $open_tags) && !in_array($current_tag, array_keys($tags_nested)))
{
// We nested a tag we shouldn't
$errors[] = sprintf($lang_common['BBCode error 4'], $current_tag);
return false;
}
else if (in_array($current_tag, array_keys($tags_nested)))
{
// We are allowed to nest this tag
if (isset($current_depth[$current_tag]))
$current_depth[$current_tag]++;
else
$current_depth[$current_tag] = 1;
// See if we are nested too deep
if ($current_depth[$current_tag] > $tags_nested[$current_tag])
{
$current_nest = $current_tag;
continue;
}
}
// Remove quotes from arguments for certain tags
if (strpos($current, '=') !== false && in_array($current_tag, $tags_quotes))
{
$current = preg_replace('#\['.$current_tag.'=("|\'|)(.*?)\\1\]\s*#i', '['.$current_tag.'=$2]', $current);
}
if (in_array($current_tag, array_keys($tags_limit_bbcode)))
$limit_bbcode = $tags_limit_bbcode[$current_tag];
$open_tags[] = $current_tag;
$open_args[] = $current_arg;
$opened_tag++;
$new_text .= $current;
continue;
}
}
// Check we closed all the tags we needed to
foreach ($tags_closed as $check)
{
if (in_array($check, $open_tags))
{
// We left an important tag open
$errors[] = sprintf($lang_common['BBCode error 5'], $check);
return false;
}
}
if ($current_ignore)
{
// We left an ignore tag open
$errors[] = sprintf($lang_common['BBCode error 5'], $current_ignore);
return false;
}
$return = ($hook = get_hook('ps_preparse_tags_end')) ? eval($hook) : null;
if ($return !== null)
return $return;
return $new_text;
}
//
// Preparse the contents of [list] bbcode
//
function preparse_list_tag($content, $type = '*', &$errors)
{
global $lang_common;
if (strlen($type) != 1)
$type = '*';
if (strpos($content,'[list') !== false)
{
$pattern_callback = '%\[list(?:=([1a*]))?+\]((?:(?>.*?(?=\[list(?:=[1a*])?+\]|\[/list\]))|(?R))*)\[/list\]%is';
$replace_callback = 'preparse_list_tag($matches[2], $matches[1], $errors)';
$content = preg_replace_callback($pattern_callback, create_function('$matches', 'return '.$replace_callback.';'), $content);
}
$items = explode('[*]', str_replace('\"', '"', $content));
$content = '';
foreach ($items as $item)
{
if (forum_trim($item) != '')
$content .= '[*'."\0".']'.str_replace('[/*]', '', forum_trim($item)).'[/*'."\0".']'."\n";
}
return '[list='.$type.']'."\n".$content.'[/list]';
}
//
// Split text into chunks ($inside contains all text inside $start and $end, and $outside contains all text outside)
//
function split_text($text, $start, $end, &$errors, $retab = true)
{
global $forum_config, $lang_common;
$tokens = explode($start, $text);
$outside[] = $tokens[0];
$num_tokens = count($tokens);
for ($i = 1; $i < $num_tokens; ++$i)
{
$temp = explode($end, $tokens[$i]);
if (count($temp) != 2)
{
$errors[] = $lang_common['BBCode code problem'];
return array(null, array($text));
}
$inside[] = $temp[0];
$outside[] = $temp[1];
}
if ($forum_config['o_indent_num_spaces'] != 8 && $retab)
{
$spaces = str_repeat(' ', $forum_config['o_indent_num_spaces']);
$inside = str_replace("\t", $spaces, $inside);
}
return array($inside, $outside);
}
//
// Truncate URL if longer than 55 characters (add http:// or ftp:// if missing)
//
function handle_url_tag($url, $link = '', $bbcode = false)
{
$return = ($hook = get_hook('ps_handle_url_tag_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
$full_url = str_replace(array(' ', '\'', '`', '"'), array('%20', '', '', ''), $url);
if (strpos($url, 'www.') === 0) // If it starts with www, we add http://
$full_url = 'http://'.$full_url;
else if (strpos($url, 'ftp.') === 0) // Else if it starts with ftp, we add ftp://
$full_url = 'ftp://'.$full_url;
else if (!preg_match('#^([a-z0-9]{3,6})://#', $url)) // Else if it doesn't start with abcdef://, we add http://
$full_url = 'http://'.$full_url;
if (defined('FORUM_SUPPORT_PCRE_UNICODE') && defined('FORUM_ENABLE_IDNA'))
{
static $idn;
static $cached_encoded_urls = null;
if (is_null($cached_encoded_urls))
$cached_encoded_urls = array();
// Check in cache
$cache_key = md5($full_url);
if (isset($cached_encoded_urls[$cache_key]))
$full_url = $cached_encoded_urls[$cache_key];
else
{
if (!isset($idn))
{
$idn = new idna_convert();
$idn->set_parameter('encoding', 'utf8');
$idn->set_parameter('strict', false);
}
$full_url = $idn->encode($full_url);
$cached_encoded_urls[$cache_key] = $full_url;
}
}
// Ok, not very pretty :-)
if (!$bbcode)
{
if (defined('FORUM_SUPPORT_PCRE_UNICODE') && defined('FORUM_ENABLE_IDNA'))
{
$link_name = ($link == '' || $link == $url) ? $url : $link;
if (preg_match('!^(https?|ftp|news){1}'.preg_quote('://xn--', '!').'!', $link_name))
{
$link = $idn->decode($link_name);
}
}
$link = ($link == '' || $link == $url) ? ((utf8_strlen($url) > 55) ? utf8_substr($url, 0 , 39).''.utf8_substr($url, -10) : $url) : stripslashes($link);
}
$return = ($hook = get_hook('ps_handle_url_tag_end')) ? eval($hook) : null;
if ($return !== null)
return $return;
if ($bbcode)
{
if (defined('FORUM_SUPPORT_PCRE_UNICODE') && defined('FORUM_ENABLE_IDNA'))
{
if (preg_match('!^(https?|ftp|news){1}'.preg_quote('://xn--', '!').'!', $link))
{
$link = $idn->decode($link);
}
}
if ($full_url == $link)
return '[url]'.$link.'[/url]';
else
return '[url='.$full_url.']'.$link.'[/url]';
}
else
return '<a href="'.$full_url.'">'.$link.'</a>';
}
//
// Callback for handle_url_tag
//
function callback_handle_url_nobb($reg)
{
return handle_url_tag($reg[1], (isset($reg[2]) ? $reg[2] : ''), false);
}
//
// Callback for handle_url_tag
//
function callback_handle_url_bb($reg)
{
return handle_url_tag($reg[1], (isset($reg[2]) ? $reg[2] : ''), true);
}
//
// Turns an URL from the [img] tag into an <img> tag or a <a href...> tag
//
function handle_img_tag($url, $is_signature = false, $alt = null)
{
global $lang_common, $forum_user;
$return = ($hook = get_hook('ps_handle_img_tag_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
if ($alt === null)
$alt = $url;
$img_tag = '<a href="'.$url.'">&lt;'.$lang_common['Image link'].'&gt;</a>';
if ($is_signature && $forum_user['show_img_sig'] != '0')
$img_tag = '<img class="sigimage" src="'.$url.'" alt="'.forum_htmlencode($alt).'" />';
else if (!$is_signature && $forum_user['show_img'] != '0')
$img_tag = '<span class="postimg"><img src="'.$url.'" alt="'.forum_htmlencode($alt).'" /></span>';
$return = ($hook = get_hook('ps_handle_img_tag_end')) ? eval($hook) : null;
if ($return !== null)
return $return;
return $img_tag;
}
//
// Parse the contents of [list] bbcode
//
function handle_list_tag($content, $type = '*')
{
if (strlen($type) != 1)
$type = '*';
if (strpos($content,'[list') !== false)
{
$pattern_callback = '%\[list(?:=([1a*]))?+\]((?:(?>.*?(?=\[list(?:=[1a*])?+\]|\[/list\]))|(?R))*)\[/list\]%is';
$replace_callback = 'handle_list_tag($matches[2], $matches[1])';
$content = preg_replace_callback($pattern_callback, create_function('$matches', 'return '.$replace_callback.';'), $content);
}
$content = preg_replace('#\s*\[\*\](.*?)\[/\*\]\s*#s', '<li><p>$1</p></li>', forum_trim($content));
if ($type == '*')
$content = '<ul>'.$content.'</ul>';
else
if ($type == 'a')
$content = '<ol class="alpha">'.$content.'</ol>';
else
$content = '<ol class="decimal">'.$content.'</ol>';
return '</p>'.$content.'<p>';
}
//
// Convert BBCodes to their HTML equivalent
//
function do_bbcode($text, $is_signature = false)
{
global $lang_common, $forum_user, $forum_config;
$return = ($hook = get_hook('ps_do_bbcode_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
if (strpos($text, '[quote') !== false)
{
$text = preg_replace_callback(
'#\[quote=(&\#039;|&quot;|"|\'|)(.*?)\\1\]#',create_function('$matches',
'global $lang_common; return \'</p><div class="quotebox"><cite>\'.str_replace(array(\'[\', \'\"\'), array(\'&#91;\', \'"\'), $matches[2])." ".$lang_common[\'wrote\'].":</cite><blockquote><p>";'),
$text);
$text = preg_replace('#\[quote\]\s*#', '</p><div class="quotebox"><blockquote><p>', $text);
$text = preg_replace('#\s*\[\/quote\]#S', '</p></blockquote></div><p>', $text);
}
if (!$is_signature)
{
$pattern_callback[] = '%\[list(?:=([1a*]))?+\]((?:(?>.*?(?=\[list(?:=[1a*])?+\]|\[/list\]))|(?R))*)\[/list\]%is';
$replace_callback[] = 'handle_list_tag($matches[2], $matches[1])';
}
$pattern[] = '#\[b\](.*?)\[/b\]#ms';
$pattern[] = '#\[i\](.*?)\[/i\]#ms';
$pattern[] = '#\[u\](.*?)\[/u\]#ms';
$pattern[] = '#\[colou?r=([a-zA-Z]{3,20}|\#[0-9a-fA-F]{6}|\#[0-9a-fA-F]{3})](.*?)\[/colou?r\]#ms';
$pattern[] = '#\[h\](.*?)\[/h\]#ms';
$replace[] = '<strong>$matches[1]</strong>';
$replace[] = '<em>$matches[1]</em>';
$replace[] = '<span class=\"bbu\">$matches[1]</span>';
$replace[] = '<span style=\"color: $matches[1]\">$matches[2]</span>';
$replace[] = '</p><h5>$matches[1]</h5><p>';
if (($is_signature && $forum_config['p_sig_img_tag'] == '1') || (!$is_signature && $forum_config['p_message_img_tag'] == '1'))
{
$pattern[] = '#\[img\]((ht|f)tps?://)([^\s<"]*?)\[/img\]#';
$pattern[] = '#\[img=([^\[]*?)\]((ht|f)tps?://)([^\s<"]*?)\[/img\]#';
if ($is_signature)
{
$replace[] = '".handle_img_tag($matches[1].$matches[3], true)."';
$replace[] = '".handle_img_tag($matches[2].$matches[4], true, $matches[1])."';
}
else
{
$replace[] = '".handle_img_tag($matches[1].$matches[3], false)."';
$replace[] = '".handle_img_tag($matches[2].$matches[4], false, $matches[1])."';
}
}
$text = preg_replace_callback('#\[url\]([^\[]*?)\[/url\]#', 'callback_handle_url_nobb', $text);
$text = preg_replace_callback('#\[url=([^\[]+?)\](.*?)\[/url\]#', 'callback_handle_url_nobb', $text);
$pattern[] = '#\[email\]([^\[]*?)\[/email\]#';
$pattern[] = '#\[email=([^\[]+?)\](.*?)\[/email\]#';
$replace[] = '<a href=\"mailto:$matches[1]\">$matches[1]</a>';
$replace[] = '<a href=\"mailto:$matches[1]\">$matches[2]</a>';
$return = ($hook = get_hook('ps_do_bbcode_replace')) ? eval($hook) : null;
if ($return !== null)
return $return;
foreach ($pattern as $key => $cur_pattern) {
$text = preg_replace_callback($cur_pattern, create_function('$matches', 'return "'.$replace[$key].'";'), $text);
}
if (isset($pattern_callback)) {
foreach ($pattern_callback as $key => $cur_callback) {
$text = preg_replace_callback($cur_callback, create_function('$matches', 'return '.$replace_callback[$key].';'), $text);
}
}
$return = ($hook = get_hook('ps_do_bbcode_end')) ? eval($hook) : null;
if ($return !== null)
return $return;
return $text;
}
//
// Make hyperlinks clickable
//
function do_clickable($text, $unicode = FALSE)
{
$text = ' '.$text;
if ($unicode)
{
$text= preg_replace_callback('#(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(https?|ftp|news){1}://([\p{Nd}\p{L}\-]+\.([\p{Nd}\p{L}\-]+\.)*[\p{Nd}\p{L}\-]+(:[0-9]+)?(/[^\s\[]*[^\s.,?!\[;:-]?)?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])#iu', create_function('$matches', 'for($i=1;$i<=12;$i++){ $matches[$i]=isset($matches[$i])?$matches[$i]:\'\';} return stripslashes($matches[1].$matches[2].$matches[3].$matches[4]).handle_url_tag($matches[5].\'://\'.$matches[6], $matches[5].\'://\'.$matches[6], true).stripslashes($matches[4].$matches[10].$matches[11].$matches[12]);'), $text);
$text = preg_replace_callback('#(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(www|ftp)\.(([\p{Nd}\p{L}\-]+\.)*[\p{Nd}\p{L}\-]+(:[0-9]+)?(/[^\s\[]*[^\s.,?!\[;:-])?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])#iu', create_function('$matches', 'for($i=1;$i<=12;$i++){ $matches[$i]=isset($matches[$i])?$matches[$i]:\'\';} return stripslashes($matches[1].$matches[2].$matches[3].$matches[4]).handle_url_tag($matches[5].\'.\'.$matches[6], $matches[5].\'.\'.$matches[6], true).stripslashes($matches[4].$matches[10].$matches[11].$matches[12]);'), $text);
}
else
{
$text = preg_replace_callback('#(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(https?|ftp|news){1}://([\w\-]+\.([\w\-]+\.)*[\w]+(:[0-9]+)?(/[^\s\[]*[^\s.,?!\[;:-]?)?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])#i', create_function('$matches', 'for($i=1;$i<=12;$i++){ $matches[$i]=isset($matches[$i])?$matches[$i]:\'\';} return stripslashes($matches[1].$matches[2].$matches[3].$matches[4]).handle_url_tag($matches[5].\'://\'.$matches[6], $matches[5].\'://\'.$matches[6], true).stripslashes($matches[4].$matches[10].$matches[11].$matches[12]);'), $text);
$text = preg_replace_callback('#(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(www|ftp)\.(([\w\-]+\.)*[\w]+(:[0-9]+)?(/[^\s\[]*[^\s.,?!\[;:-])?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])#i', create_function('$matches', 'for($i=1;$i<=12;$i++){ $matches[$i]=isset($matches[$i])?$matches[$i]:\'\';} return stripslashes($matches[1].$matches[2].$matches[3].$matches[4]).handle_url_tag($matches[5].\'.\'.$matches[6], $matches[5].\'.\'.$matches[6], true).stripslashes($matches[4].$matches[10].$matches[11].$matches[12]);'), $text);
}
return substr($text, 1);
}
//
// Convert a series of smilies to images
//
function do_smilies($text)
{
global $forum_config, $base_url, $smilies;
$return = ($hook = get_hook('ps_do_smilies_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
$text = ' '.$text.' ';
foreach ($smilies as $smiley_text => $smiley_img)
{
if (strpos($text, $smiley_text) !== false)
$text = preg_replace("#(?<=[>\s])".preg_quote($smiley_text, '#')."(?=\W)#m", '<img src="'.$base_url.'/img/smilies/'.$smiley_img.'" width="15" height="15" alt="'.substr($smiley_img, 0, strrpos($smiley_img, '.')).'" />', $text);
}
$return = ($hook = get_hook('ps_do_smilies_end')) ? eval($hook) : null;
return substr($text, 1, -1);
}
//
// Parse message text
//
function parse_message($text, $hide_smilies)
{
global $forum_config, $lang_common, $forum_user;
$return = ($hook = get_hook('ps_parse_message_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
if ($forum_config['o_censoring'] == '1')
$text = censor_words($text);
$return = ($hook = get_hook('ps_parse_message_post_censor')) ? eval($hook) : null;
if ($return !== null)
return $return;
// Convert applicable characters to HTML entities
$text = forum_htmlencode($text);
$return = ($hook = get_hook('ps_parse_message_pre_split')) ? eval($hook) : null;
if ($return !== null)
return $return;
// If the message contains a code tag we have to split it up (text within [code][/code] shouldn't be touched)
if (strpos($text, '[code]') !== false && strpos($text, '[/code]') !== false)
{
list($inside, $outside) = split_text($text, '[code]', '[/code]', $errors);
$text = implode("\x1", $outside);
}
$return = ($hook = get_hook('ps_parse_message_post_split')) ? eval($hook) : null;
if ($return !== null)
return $return;
if ($forum_config['p_message_bbcode'] == '1' && strpos($text, '[') !== false && strpos($text, ']') !== false)
$text = do_bbcode($text);
if ($forum_config['o_smilies'] == '1' && $forum_user['show_smilies'] == '1' && $hide_smilies == '0')
$text = do_smilies($text);
$return = ($hook = get_hook('ps_parse_message_bbcode')) ? eval($hook) : null;
if ($return !== null)
return $return;
// Deal with newlines, tabs and multiple spaces
$pattern = array("\n", "\t", ' ', ' ');
$replace = array('<br />', '&nbsp; &nbsp; ', '&nbsp; ', ' &nbsp;');
$text = str_replace($pattern, $replace, $text);
$return = ($hook = get_hook('ps_parse_message_pre_merge')) ? eval($hook) : null;
if ($return !== null)
return $return;
// If we split up the message before we have to concatenate it together again (code tags)
if (isset($inside))
{
$outside = explode("\x1", $text);
$text = '';
$num_tokens = count($outside);
for ($i = 0; $i < $num_tokens; ++$i)
{
$text .= $outside[$i];
if (isset($inside[$i]))
$text .= '</p><div class="codebox"><pre><code>'.forum_trim($inside[$i], "\n\r").'</code></pre></div><p>';
}
}
$return = ($hook = get_hook('ps_parse_message_post_merge')) ? eval($hook) : null;
if ($return !== null)
return $return;
// Add paragraph tag around post, but make sure there are no empty paragraphs
$text = preg_replace('#<br />\s*?<br />((\s*<br />)*)#i', "</p>$1<p>", $text);
$text = str_replace('<p><br />', '<p>', $text);
$text = str_replace('<p></p>', '', '<p>'.$text.'</p>');
$return = ($hook = get_hook('ps_parse_message_end')) ? eval($hook) : null;
if ($return !== null)
return $return;
return $text;
}
//
// Parse signature text
//
function parse_signature($text)
{
global $forum_config, $lang_common, $forum_user;
$return = ($hook = get_hook('ps_parse_signature_start')) ? eval($hook) : null;
if ($return !== null)
return $return;
if ($forum_config['o_censoring'] == '1')
$text = censor_words($text);
$return = ($hook = get_hook('ps_parse_signature_post_censor')) ? eval($hook) : null;
if ($return !== null)
return $return;
// Convert applicable characters to HTML entities
$text = forum_htmlencode($text);
$return = ($hook = get_hook('ps_parse_signature_pre_bbcode')) ? eval($hook) : null;
if ($return !== null)
return $return;
if ($forum_config['p_sig_bbcode'] == '1' && strpos($text, '[') !== false && strpos($text, ']') !== false)
$text = do_bbcode($text, true);
if ($forum_config['o_smilies_sig'] == '1' && $forum_user['show_smilies'] == '1')
$text = do_smilies($text);
$return = ($hook = get_hook('ps_parse_signature_post_bbcode')) ? eval($hook) : null;
if ($return !== null)
return $return;
// Deal with newlines, tabs and multiple spaces
$pattern = array("\n", "\t", ' ', ' ');
$replace = array('<br />', '&nbsp; &nbsp; ', '&nbsp; ', ' &nbsp;');
$text = str_replace($pattern, $replace, $text);
$return = ($hook = get_hook('ps_parse_signature_end')) ? eval($hook) : null;
if ($return !== null)
return $return;
return $text;
}
define('FORUM_PARSER_LOADED', 1);