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+<?php
+
+/**
+ * Copyright (C) 2008-2012 FluxBB
+ * based on code by Rickard Andersson copyright (C) 2002-2008 PunBB
+ * License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher
+ */
+
+// Make sure no one attempts to run this script "directly"
+if (!defined('PUN'))
+ exit;
+
+// Global variables
+/* regular expression to match nested BBCode LIST tags
+'%
+\[list # match opening bracket and tag name of outermost LIST tag
+(?:=([1a*]))?+ # optional attribute capture in group 1
+\] # closing bracket of outermost opening LIST tag
+( # capture contents of LIST tag in group 2
+ (?: # non capture group for either contents or whole nested LIST
+ [^\[]*+ # unroll the loop! consume everything up to next [ (normal *)
+ (?: # (See "Mastering Regular Expressions" chapter 6 for details)
+ (?! # negative lookahead ensures we are NOT on [LIST*] or [/LIST]
+ \[list # opening LIST tag
+ (?:=[1a*])?+ # with optional attribute
+ \] # closing bracket of opening LIST tag
+ | # or...
+ \[/list\] # a closing LIST tag
+ ) # end negative lookahead assertion (we are not on a LIST tag)
+ \[ # match the [ which is NOT the start of LIST tag (special)
+ [^\[]*+ # consume everything up to next [ (normal *)
+ )*+ # finish up "unrolling the loop" technique (special (normal*))*
+ | # or...
+ (?R) # recursively match a whole nested LIST element
+ )* # as many times as necessary until deepest nested LIST tag grabbed
+) # end capturing contents of LIST tag into group 2
+\[/list\] # match outermost closing LIST tag
+%iex' */
+$re_list = '%\[list(?:=([1a*]))?+\]((?:[^\[]*+(?:(?!\[list(?:=[1a*])?+\]|\[/list\])\[[^\[]*+)*+|(?R))*)\[/list\]%i';
+
+// Here you can add additional smilies if you like (please note that you must escape single quote and backslash)
+$smilies = array(
+ ':)' => 'smile.png',
+ '=)' => 'smile.png',
+ ':|' => 'neutral.png',
+ '=|' => 'neutral.png',
+ ':(' => 'sad.png',
+ '=(' => 'sad.png',
+ ':D' => 'big_smile.png',
+ '=D' => 'big_smile.png',
+ ':o' => 'yikes.png',
+ ':O' => 'yikes.png',
+ ';)' => 'wink.png',
+ ':/' => 'hmm.png',
+ ':P' => 'tongue.png',
+ ':p' => 'tongue.png',
+ ':lol:' => 'lol.png',
+ ':mad:' => 'mad.png',
+ ':rolleyes:' => 'roll.png',
+ ':cool:' => 'cool.png');
+
+//
+// Make sure all BBCodes are lower case and do a little cleanup
+//
+function preparse_bbcode($text, &$errors, $is_signature = false)
+{
+ global $pun_config, $lang_common, $lang_post, $re_list;
+
+ // Remove empty tags
+ while (($new_text = strip_empty_bbcode($text)) !== false)
+ {
+ if ($new_text != $text)
+ {
+ $text = $new_text;
+ if ($new_text == '')
+ {
+ $errors[] = $lang_post['Empty after strip'];
+ return '';
+ }
+ }
+ else
+ break;
+ }
+
+ if ($is_signature)
+ {
+ global $lang_profile;
+
+ if (preg_match('%\[/?(?:quote|code|list|h)\b[^\]]*\]%i', $text))
+ $errors[] = $lang_profile['Signature quote/code/list/h'];
+ }
+
+ // If the message contains a code tag we have to split it up (text within [code][/code] shouldn't be touched)
+ if (strpos($text, '[code]') !== false && strpos($text, '[/code]') !== false)
+ list($inside, $text) = extract_blocks($text, '[code]', '[/code]');
+
+ // Tidy up lists
+ $temp = preg_replace_callback($re_list, create_function('$matches', 'return preparse_list_tag($matches[2], $matches[1]);'), $text);
+
+ // If the regex failed
+ if (is_null($temp))
+ $errors[] = $lang_common['BBCode list size error'];
+ else
+ $text = str_replace('*'."\0".']', '*]', $temp);
+
+ if ($pun_config['o_make_links'] == '1')
+ $text = do_clickable($text);
+
+ $temp_text = false;
+ if (empty($errors))
+ $temp_text = preparse_tags($text, $errors, $is_signature);
+
+ if ($temp_text !== false)
+ $text = $temp_text;
+
+ // If we split up the message before we have to concatenate it together again (code tags)
+ if (isset($inside))
+ {
+ $outside = explode("\1", $text);
+ $text = '';
+
+ $num_tokens = count($outside);
+ for ($i = 0; $i < $num_tokens; ++$i)
+ {
+ $text .= $outside[$i];
+ if (isset($inside[$i]))
+ $text .= '[code]'.$inside[$i].'[/code]';
+ }
+
+ unset($inside);
+ }
+
+ // Remove empty tags
+ while (($new_text = strip_empty_bbcode($text)) !== false)
+ {
+ if ($new_text != $text)
+ {
+ $text = $new_text;
+ if ($new_text == '')
+ {
+ $errors[] = $lang_post['Empty after strip'];
+ break;
+ }
+ }
+ else
+ break;
+ }
+
+ return pun_trim($text);
+}
+
+
+//
+// Strip empty bbcode tags from some text
+//
+function strip_empty_bbcode($text)
+{
+ // If the message contains a code tag we have to split it up (empty tags within [code][/code] are fine)
+ if (strpos($text, '[code]') !== false && strpos($text, '[/code]') !== false)
+ list($inside, $text) = extract_blocks($text, '[code]', '[/code]');
+
+ // Remove empty tags
+ while (!is_null($new_text = preg_replace('%\[(b|u|s|ins|del|em|i|h|colou?r|quote|img|url|email|list|topic|post|forum|user)(?:\=[^\]]*)?\]\s*\[/\1\]%', '', $text)))
+ {
+ if ($new_text != $text)
+ $text = $new_text;
+ else
+ break;
+ }
+
+ // If we split up the message before we have to concatenate it together again (code tags)
+ if (isset($inside))
+ {
+ $parts = explode("\1", $text);
+ $text = '';
+ foreach ($parts as $i => $part)
+ {
+ $text .= $part;
+ if (isset($inside[$i]))
+ $text .= '[code]'.$inside[$i].'[/code]';
+ }
+ }
+
+ // Remove empty code tags
+ while (!is_null($new_text = preg_replace('%\[(code)\]\s*\[/\1\]%', '', $text)))
+ {
+ if ($new_text != $text)
+ $text = $new_text;
+ else
+ break;
+ }
+
+ return $text;
+}
+
+
+//
+// Check the structure of bbcode tags and fix simple mistakes where possible
+//
+function preparse_tags($text, &$errors, $is_signature = false)
+{
+ global $lang_common, $pun_config, $pun_user;
+
+ // 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', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'img', 'list', '*', 'h', 'topic', 'post', 'forum', 'user');
+ // 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
+ $tags_nested = array('quote' => $pun_config['o_quote_depth'], 'list' => 5, '*' => 5);
+ // Tags to ignore the contents of completely (just code)
+ $tags_ignore = array('code');
+ // Tags not allowed
+ $tags_forbidden = array();
+ // 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', 's', 'ins', 'del', 'em', 'color', 'colour', 'h', 'topic', 'post', 'forum', 'user');
+ // Tags we trim interior space
+ $tags_trim = array('img');
+ // Tags we remove quotes from the argument
+ $tags_quotes = array('url', 'email', 'img', 'topic', 'post', 'forum', 'user');
+ // Tags we limit bbcode in
+ $tags_limit_bbcode = array(
+ '*' => array('b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'list', 'img', 'code', 'topic', 'post', 'forum', 'user'),
+ 'list' => array('*'),
+ 'url' => array('img'),
+ 'email' => array('img'),
+ 'topic' => array('img'),
+ 'post' => array('img'),
+ 'forum' => array('img'),
+ 'user' => array('img'),
+ 'img' => array(),
+ 'h' => array('b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'topic', 'post', 'forum', 'user'),
+ );
+ // Tags we can automatically fix bad nesting
+ $tags_fix = array('quote', 'b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'h', 'topic', 'post', 'forum', 'user');
+
+ // Disallow URL tags
+ if ($pun_user['g_post_links'] != '1')
+ $tags_forbidden[] = 'url';
+
+ $split_text = preg_split('%(\[[\*a-zA-Z0-9-/]*?(?:=.*?)?\])%', $text, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
+
+ $open_tags = array('fluxbb-bbcode');
+ $open_args = array('');
+ $opened_tag = 0;
+ $new_text = '';
+ $current_ignore = '';
+ $current_nest = '';
+ $current_depth = array();
+ $limit_bbcode = $tags;
+ $count_ignored = array();
+
+ foreach ($split_text as $current)
+ {
+ if ($current == '')
+ continue;
+
+ // Are we dealing with a tag?
+ if (substr($current, 0, 1) != '[' || substr($current, -1, 1) != ']')
+ {
+ // It's 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);
+ $current = '';
+
+ if (!pun_trim($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))
+ $new_text .= pun_trim($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, $tags))
+ {
+ // It's not a bbcode tag so we put it on the end and continue
+ if (!$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 empty attribute'], $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
+ // We keep a count of ignored bbcodes (code tags) so we can nest them, but
+ // only balanced sets of tags can be nested
+ if ($current_ignore)
+ {
+ // Increase the current ignored tags counter
+ if ('['.$current_ignore.']' == $current)
+ $count_ignored[$current_tag]++;
+
+ // Decrease the current ignored tags counter
+ if ('[/'.$current_ignore.']' == $current)
+ $count_ignored[$current_tag]--;
+
+ if ('[/'.$current_ignore.']' == $current && $count_ignored[$current_tag] == 0)
+ {
+ // We've finished the ignored section
+ $current = '[/'.$current_tag.']';
+ $current_ignore = '';
+ $count_ignored = array();
+ }
+
+ $new_text .= $current;
+
+ continue;
+ }
+
+ // Is the tag forbidden?
+ if (in_array($current_tag, $tags_forbidden))
+ {
+ if (isset($lang_common['BBCode error tag '.$current_tag.' not allowed']))
+ $errors[] = sprintf($lang_common['BBCode error tag '.$current_tag.' not allowed']);
+ else
+ $errors[] = sprintf($lang_common['BBCode error tag not allowed'], $current_tag);
+
+ return false;
+ }
+
+ if ($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 invalid nesting'], $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 no opening tag'], $current_tag);
+ return false;
+ }
+ }
+ else
+ {
+ // Check nesting
+ while (true)
+ {
+ // Nesting is ok
+ if ($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 no closing tag'], $temp_tag);
+ return false;
+ }
+ array_push($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 no opening tag'], $current_tag);
+ return false;
+ }
+ }
+ else if (in_array($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 invalid nesting'], $current_tag, $open_tags[$opened_tag]);
+ return false;
+ }
+
+ if (in_array($current_tag, $tags_ignore))
+ {
+ // It's an ignore tag so we don't need to worry about what's inside it
+ $current_ignore = $current_tag;
+ $count_ignored[$current_tag] = 1;
+ $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 invalid self-nesting'], $current_tag);
+ return false;
+ }
+ else if (in_array($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 no closing tag'], $check);
+ return false;
+ }
+ }
+
+ if ($current_ignore)
+ {
+ // We left an ignore tag open
+ $errors[] = sprintf($lang_common['BBCode error no closing tag'], $current_ignore);
+ return false;
+ }
+
+ return $new_text;
+}
+
+
+//
+// Preparse the contents of [list] bbcode
+//
+function preparse_list_tag($content, $type = '*')
+{
+ global $lang_common, $re_list;
+
+ if (strlen($type) != 1)
+ $type = '*';
+
+ if (strpos($content,'[list') !== false)
+ {
+ $content = preg_replace_callback($re_list, create_function('$matches', 'return preparse_list_tag($matches[2], $matches[1]);'), $content);
+ }
+
+ $items = explode('[*]', str_replace('\"', '"', $content));
+
+ $content = '';
+ foreach ($items as $item)
+ {
+ if (pun_trim($item) != '')
+ $content .= '[*'."\0".']'.str_replace('[/*]', '', pun_trim($item)).'[/*'."\0".']'."\n";
+ }
+
+ return '[list='.$type.']'."\n".$content.'[/list]';
+}
+
+
+//
+// Truncate URL if longer than 55 characters (add http:// or ftp:// if missing)
+//
+function handle_url_tag($url, $link = '', $bbcode = false)
+{
+ $url = pun_trim($url);
+
+ // Deal with [url][img]http://example.com/test.png[/img][/url]
+ if (preg_match('%<img src=\"(.*?)\"%', $url, $matches))
+ return handle_url_tag($matches[1], $url, $bbcode);
+
+ $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 (strpos($url, '/') === 0) // Allow for relative URLs that start with a slash
+ $full_url = get_base_url(true).$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;
+
+ // Ok, not very pretty :-)
+ if ($bbcode)
+ {
+ if ($full_url == $link)
+ return '[url]'.$link.'[/url]';
+ else
+ return '[url='.$full_url.']'.$link.'[/url]';
+ }
+ else
+ {
+ if ($link == '' || $link == $url)
+ {
+ $url = pun_htmlspecialchars_decode($url);
+ $link = utf8_strlen($url) > 55 ? utf8_substr($url, 0 , 39).' … '.utf8_substr($url, -10) : $url;
+ $link = pun_htmlspecialchars($link);
+ }
+ else
+ $link = stripslashes($link);
+
+ return '<a href="'.$full_url.'" rel="nofollow">'.$link.'</a>';
+ }
+}
+
+
+//
+// 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, $pun_user;
+
+ if (is_null($alt))
+ $alt = basename($url);
+
+ $img_tag = '<a href="'.$url.'" rel="nofollow">&lt;'.$lang_common['Image link'].' - '.$alt.'&gt;</a>';
+
+ if ($is_signature && $pun_user['show_img_sig'] != '0')
+ $img_tag = '<img class="sigimage" src="'.$url.'" alt="'.$alt.'" />';
+ else if (!$is_signature && $pun_user['show_img'] != '0')
+ $img_tag = '<span class="postimg"><img src="'.$url.'" alt="'.$alt.'" /></span>';
+
+ return $img_tag;
+}
+
+
+//
+// Parse the contents of [list] bbcode
+//
+function handle_list_tag($content, $type = '*')
+{
+ global $re_list;
+
+ if (strlen($type) != 1)
+ $type = '*';
+
+ if (strpos($content,'[list') !== false)
+ {
+ $content = preg_replace_callback($re_list, create_function('$matches', 'return handle_list_tag($matches[2], $matches[1]);'), $content);
+ }
+
+ $content = preg_replace('#\s*\[\*\](.*?)\[/\*\]\s*#s', '<li><p>$1</p></li>', pun_trim($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, $pun_user, $pun_config, $re_list;
+
+ if (strpos($text, '[quote') !== false)
+ {
+ $text = preg_replace('%\[quote\]\s*%', '</p><div class="quotebox"><blockquote><div><p>', $text);
+ $text = preg_replace_callback('%\[quote=(&quot;|&\#039;|"|\'|)([^\r\n]*?)\\1\]%s', create_function('$matches', 'global $lang_common; return "</p><div class=\"quotebox\"><cite>".str_replace(array(\'[\', \'\\"\'), array(\'&#91;\', \'"\'), $matches[2])." ".$lang_common[\'wrote\']."</cite><blockquote><div><p>";'), $text);
+ $text = preg_replace('%\s*\[\/quote\]%S', '</p></div></blockquote></div><p>', $text);
+ }
+ if (!$is_signature)
+ {
+ $pattern_callback[] = $re_list;
+ $replace_callback[] = 'handle_list_tag($matches[2], $matches[1])';
+ }
+
+ $pattern[] = '%\[b\](.*?)\[/b\]%ms';
+ $pattern[] = '%\[i\](.*?)\[/i\]%ms';
+ $pattern[] = '%\[u\](.*?)\[/u\]%ms';
+ $pattern[] = '%\[s\](.*?)\[/s\]%ms';
+ $pattern[] = '%\[del\](.*?)\[/del\]%ms';
+ $pattern[] = '%\[ins\](.*?)\[/ins\]%ms';
+ $pattern[] = '%\[em\](.*?)\[/em\]%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>$1</strong>';
+ $replace[] = '<em>$1</em>';
+ $replace[] = '<span class="bbu">$1</span>';
+ $replace[] = '<span class="bbs">$1</span>';
+ $replace[] = '<del>$1</del>';
+ $replace[] = '<ins>$1</ins>';
+ $replace[] = '<em>$1</em>';
+ $replace[] = '<span style="color: $1">$2</span>';
+ $replace[] = '</p><h5>$1</h5><p>';
+
+ if (($is_signature && $pun_config['p_sig_img_tag'] == '1') || (!$is_signature && $pun_config['p_message_img_tag'] == '1'))
+ {
+ $pattern_callback[] = '%\[img\]((ht|f)tps?://)([^\s<"]*?)\[/img\]%';
+ $pattern_callback[] = '%\[img=([^\[]*?)\]((ht|f)tps?://)([^\s<"]*?)\[/img\]%';
+ if ($is_signature)
+ {
+ $replace_callback[] = 'handle_img_tag($matches[1].$matches[3], true)';
+ $replace_callback[] = 'handle_img_tag($matches[2].$matches[4], true, $matches[1])';
+ }
+ else
+ {
+ $replace_callback[] = 'handle_img_tag($matches[1].$matches[3], false)';
+ $replace_callback[] = 'handle_img_tag($matches[2].$matches[4], false, $matches[1])';
+ }
+ }
+
+ $pattern_callback[] = '%\[url\]([^\[]*?)\[/url\]%';
+ $pattern_callback[] = '%\[url=([^\[]+?)\](.*?)\[/url\]%';
+ $pattern[] = '%\[email\]([^\[]*?)\[/email\]%';
+ $pattern[] = '%\[email=([^\[]+?)\](.*?)\[/email\]%';
+ $pattern_callback[] = '%\[topic\]([1-9]\d*)\[/topic\]%';
+ $pattern_callback[] = '%\[topic=([1-9]\d*)\](.*?)\[/topic\]%';
+ $pattern_callback[] = '%\[post\]([1-9]\d*)\[/post\]%';
+ $pattern_callback[] = '%\[post=([1-9]\d*)\](.*?)\[/post\]%';
+ $pattern_callback[] = '%\[forum\]([1-9]\d*)\[/forum\]%';
+ $pattern_callback[] = '%\[forum=([1-9]\d*)\](.*?)\[/forum\]%';
+ $pattern_callback[] = '%\[user\]([1-9]\d*)\[/user\]%';
+ $pattern_callback[] = '%\[user=([1-9]\d*)\](.*?)\[/user\]%';
+
+ $replace_callback[] = 'handle_url_tag($matches[1])';
+ $replace_callback[] = 'handle_url_tag($matches[1], $matches[2])';
+ $replace[] = '<a href="mailto:$1">$1</a>';
+ $replace[] = '<a href="mailto:$1">$2</a>';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?id=\'.$matches[1])';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?id=\'.$matches[1], $matches[2])';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?pid=\'.$matches[1].\'#p\'.$matches[1])';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?pid=\'.$matches[1].\'#p\'.$matches[1], $matches[2])';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/viewforum.php?id=\'.$matches[1])';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/viewforum.php?id=\'.$matches[1], $matches[2])';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/profile.php?id=\'.$matches[1])';
+ $replace_callback[] = 'handle_url_tag(\''.get_base_url(true).'/profile.php?id=\'.$matches[1], $matches[2])';
+
+ // This thing takes a while! :)
+ $text = preg_replace($pattern, $replace, $text);
+ $count = count($pattern_callback);
+ for($i = 0 ; $i < $count ; $i++)
+ {
+ $text = preg_replace_callback($pattern_callback[$i], create_function('$matches', 'return '.$replace_callback[$i].';'), $text);
+ }
+ return $text;
+}
+
+
+//
+// Make hyperlinks clickable
+//
+function do_clickable($text)
+{
+ $text = ' '.$text;
+ $text = ucp_preg_replace_callback('%(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(https?|ftp|news){1}://([\p{L}\p{N}\-]+\.([\p{L}\p{N}\-]+\.)*[\p{L}\p{N}]+(:[0-9]+)?(/(?:[^\s\[]*[^\s.,?!\[;:-])?)?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])%ui', 'stripslashes($matches[1].$matches[2].$matches[3].$matches[4]).handle_url_tag($matches[5]."://".$matches[6], $matches[5]."://".$matches[6], true).stripslashes($matches[4].forum_array_key($matches, 10).forum_array_key($matches, 11).forum_array_key($matches, 12))', $text);
+ $text = ucp_preg_replace_callback('%(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(www|ftp)\.(([\p{L}\p{N}\-]+\.)+[\p{L}\p{N}]+(:[0-9]+)?(/(?:[^\s\[]*[^\s.,?!\[;:-])?)?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])%ui','stripslashes($matches[1].$matches[2].$matches[3].$matches[4]).handle_url_tag($matches[5].".".$matches[6], $matches[5].".".$matches[6], true).stripslashes($matches[4].forum_array_key($matches, 10).forum_array_key($matches, 11).forum_array_key($matches, 12))', $text);
+
+ return substr($text, 1);
+}
+
+
+//
+// Return an array key, if it exists, otherwise return an empty string
+//
+function forum_array_key($arr, $key)
+{
+ return isset($arr[$key]) ? $arr[$key] : '';
+}
+
+
+//
+// Convert a series of smilies to images
+//
+function do_smilies($text)
+{
+ global $smilies;
+
+ $text = ' '.$text.' ';
+
+ foreach ($smilies as $smiley_text => $smiley_img)
+ {
+ if (strpos($text, $smiley_text) !== false)
+ $text = ucp_preg_replace('%(?<=[>\s])'.preg_quote($smiley_text, '%').'(?=[^\p{L}\p{N}])%um', '<img src="'.pun_htmlspecialchars(get_base_url(true).'/img/smilies/'.$smiley_img).'" width="15" height="15" alt="'.substr($smiley_img, 0, strrpos($smiley_img, '.')).'" />', $text);
+ }
+
+ return substr($text, 1, -1);
+}
+
+
+//
+// Parse message text
+//
+function parse_message($text, $hide_smilies)
+{
+ global $pun_config, $lang_common, $pun_user;
+
+ if ($pun_config['o_censoring'] == '1')
+ $text = censor_words($text);
+
+ // Convert applicable characters to HTML entities
+ $text = pun_htmlspecialchars($text);
+
+ // 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, $text) = extract_blocks($text, '[code]', '[/code]');
+
+ if ($pun_config['p_message_bbcode'] == '1' && strpos($text, '[') !== false && strpos($text, ']') !== false)
+ $text = do_bbcode($text);
+
+ if ($pun_config['o_smilies'] == '1' && $pun_user['show_smilies'] == '1' && $hide_smilies == '0')
+ $text = do_smilies($text);
+
+ // Deal with newlines, tabs and multiple spaces
+ $pattern = array("\n", "\t", ' ', ' ');
+ $replace = array('<br />', '&#160; &#160; ', '&#160; ', ' &#160;');
+ $text = str_replace($pattern, $replace, $text);
+
+ // If we split up the message before we have to concatenate it together again (code tags)
+ if (isset($inside))
+ {
+ $parts = explode("\1", $text);
+ $text = '';
+ foreach ($parts as $i => $part)
+ {
+ $text .= $part;
+ if (isset($inside[$i]))
+ {
+ $num_lines = (substr_count($inside[$i], "\n"));
+ $text .= '</p><div class="codebox"><pre'.(($num_lines > 28) ? ' class="vscroll"' : '').'><code>'.pun_trim($inside[$i], "\n\r").'</code></pre></div><p>';
+ }
+ }
+ }
+
+ return clean_paragraphs($text);
+}
+
+
+//
+// Clean up paragraphs and line breaks
+//
+function clean_paragraphs($text)
+{
+ // Add paragraph tag around post, but make sure there are no empty paragraphs
+
+ $text = '<p>'.$text.'</p>';
+
+ // Replace any breaks next to paragraphs so our replace below catches them
+ $text = preg_replace('%(</?p>)(?:\s*?<br />){1,2}%i', '$1', $text);
+ $text = preg_replace('%(?:<br />\s*?){1,2}(</?p>)%i', '$1', $text);
+
+ // Remove any empty paragraph tags (inserted via quotes/lists/code/etc) which should be stripped
+ $text = str_replace('<p></p>', '', $text);
+
+ $text = preg_replace('%<br />\s*?<br />%i', '</p><p>', $text);
+
+ $text = str_replace('<p><br />', '<br /><p>', $text);
+ $text = str_replace('<br /></p>', '</p><br />', $text);
+ $text = str_replace('<p></p>', '<br /><br />', $text);
+
+ return $text;
+}
+
+
+//
+// Parse signature text
+//
+function parse_signature($text)
+{
+ global $pun_config, $lang_common, $pun_user;
+
+ if ($pun_config['o_censoring'] == '1')
+ $text = censor_words($text);
+
+ // Convert applicable characters to HTML entities
+ $text = pun_htmlspecialchars($text);
+
+ if ($pun_config['p_sig_bbcode'] == '1' && strpos($text, '[') !== false && strpos($text, ']') !== false)
+ $text = do_bbcode($text, true);
+
+ if ($pun_config['o_smilies_sig'] == '1' && $pun_user['show_smilies'] == '1')
+ $text = do_smilies($text);
+
+
+ // Deal with newlines, tabs and multiple spaces
+ $pattern = array("\n", "\t", ' ', ' ');
+ $replace = array('<br />', '&#160; &#160; ', '&#160; ', ' &#160;');
+ $text = str_replace($pattern, $replace, $text);
+
+ return clean_paragraphs($text);
+}