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1813 lines (1532 loc) · 51.8 KB
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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
if (!class_exists('bbcode'))
{
include($phpbb_root_path . 'includes/bbcode.' . $phpEx);
}
/**
* BBCODE FIRSTPASS
* BBCODE first pass class (functions for parsing messages for db storage)
*/
class bbcode_firstpass extends bbcode
{
var $message = '';
var $warn_msg = array();
var $parsed_items = array();
/**
* Parse BBCode
*/
function parse_bbcode()
{
if (!$this->bbcodes)
{
$this->bbcode_init();
}
global $user;
$this->bbcode_bitfield = '';
$bitfield = new bitfield();
foreach ($this->bbcodes as $bbcode_name => $bbcode_data)
{
if (isset($bbcode_data['disabled']) && $bbcode_data['disabled'])
{
foreach ($bbcode_data['regexp'] as $regexp => $replacement)
{
if (preg_match($regexp, $this->message))
{
$this->warn_msg[] = sprintf($user->lang['UNAUTHORISED_BBCODE'] , '[' . $bbcode_name . ']');
continue;
}
}
}
else
{
foreach ($bbcode_data['regexp'] as $regexp => $replacement)
{
// The pattern gets compiled and cached by the PCRE extension,
// it should not demand recompilation
if (preg_match($regexp, $this->message))
{
$this->message = preg_replace($regexp, $replacement, $this->message);
$bitfield->set($bbcode_data['bbcode_id']);
}
}
}
}
$this->bbcode_bitfield = $bitfield->get_base64();
}
/**
* Prepare some bbcodes for better parsing
*/
function prepare_bbcodes()
{
// Ok, seems like users instead want the no-parsing of urls, smilies, etc. after and before and within quote tags being tagged as "not a bug".
// Fine by me ;) Will ease our live... but do not come back and cry at us, we won't hear you.
/* Add newline at the end and in front of each quote block to prevent parsing errors (urls, smilies, etc.)
if (strpos($this->message, '[quote') !== false && strpos($this->message, '[/quote]') !== false)
{
$this->message = str_replace("\r\n", "\n", $this->message);
// We strip newlines and spaces after and before quotes in quotes (trimming) and then add exactly one newline
$this->message = preg_replace('#\[quote(=".*?")?\]\s*(.*?)\s*\[/quote\]#siu', '[quote\1]' . "\n" . '\2' ."\n[/quote]", $this->message);
}
*/
// Add other checks which needs to be placed before actually parsing anything (be it bbcodes, smilies, urls...)
}
/**
* Init bbcode data for later parsing
*/
function bbcode_init($allow_custom_bbcode = true)
{
global $phpbb_dispatcher;
static $rowset;
// This array holds all bbcode data. BBCodes will be processed in this
// order, so it is important to keep [code] in first position and
// [quote] in second position.
// To parse multiline URL we enable dotall option setting only for URL text
// but not for link itself, thus [url][/url] is not affected.
$this->bbcodes = array(
'code' => array('bbcode_id' => 8, 'regexp' => array('#\[code(?:=([a-z]+))?\](.+\[/code\])#uise' => "\$this->bbcode_code('\$1', '\$2')")),
'quote' => array('bbcode_id' => 0, 'regexp' => array('#\[quote(?:="(.*?)")?\](.+)\[/quote\]#uise' => "\$this->bbcode_quote('\$0')")),
'attachment' => array('bbcode_id' => 12, 'regexp' => array('#\[attachment=([0-9]+)\](.*?)\[/attachment\]#uise' => "\$this->bbcode_attachment('\$1', '\$2')")),
'b' => array('bbcode_id' => 1, 'regexp' => array('#\[b\](.*?)\[/b\]#uise' => "\$this->bbcode_strong('\$1')")),
'i' => array('bbcode_id' => 2, 'regexp' => array('#\[i\](.*?)\[/i\]#uise' => "\$this->bbcode_italic('\$1')")),
'url' => array('bbcode_id' => 3, 'regexp' => array('#\[url(=(.*))?\](?(1)((?s).*(?-s))|(.*))\[/url\]#uiUe' => "\$this->validate_url('\$2', ('\$3') ? '\$3' : '\$4')")),
'img' => array('bbcode_id' => 4, 'regexp' => array('#\[img\](.*)\[/img\]#uiUe' => "\$this->bbcode_img('\$1')")),
'size' => array('bbcode_id' => 5, 'regexp' => array('#\[size=([\-\+]?\d+)\](.*?)\[/size\]#uise' => "\$this->bbcode_size('\$1', '\$2')")),
'color' => array('bbcode_id' => 6, 'regexp' => array('!\[color=(#[0-9a-f]{3}|#[0-9a-f]{6}|[a-z\-]+)\](.*?)\[/color\]!uise' => "\$this->bbcode_color('\$1', '\$2')")),
'u' => array('bbcode_id' => 7, 'regexp' => array('#\[u\](.*?)\[/u\]#uise' => "\$this->bbcode_underline('\$1')")),
'list' => array('bbcode_id' => 9, 'regexp' => array('#\[list(?:=(?:[a-z0-9]|disc|circle|square))?].*\[/list]#uise' => "\$this->bbcode_parse_list('\$0')")),
'email' => array('bbcode_id' => 10, 'regexp' => array('#\[email=?(.*?)?\](.*?)\[/email\]#uise' => "\$this->validate_email('\$1', '\$2')")),
'flash' => array('bbcode_id' => 11, 'regexp' => array('#\[flash=([0-9]+),([0-9]+)\](.*?)\[/flash\]#uie' => "\$this->bbcode_flash('\$1', '\$2', '\$3')"))
);
// Zero the parsed items array
$this->parsed_items = array();
foreach ($this->bbcodes as $tag => $bbcode_data)
{
$this->parsed_items[$tag] = 0;
}
if (!$allow_custom_bbcode)
{
return;
}
if (!is_array($rowset))
{
global $db;
$rowset = array();
$sql = 'SELECT *
FROM ' . BBCODES_TABLE;
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$rowset[] = $row;
}
$db->sql_freeresult($result);
}
foreach ($rowset as $row)
{
$this->bbcodes[$row['bbcode_tag']] = array(
'bbcode_id' => (int) $row['bbcode_id'],
'regexp' => array($row['first_pass_match'] => str_replace('$uid', $this->bbcode_uid, $row['first_pass_replace']))
);
}
$bbcodes = $this->bbcodes;
/**
* Event to modify the bbcode data for later parsing
*
* @event core.modify_bbcode_init
* @var array bbcodes Array of bbcode data for use in parsing
* @var array rowset Array of bbcode data from the database
* @since 3.1.0-a3
*/
$vars = array('bbcodes', 'rowset');
extract($phpbb_dispatcher->trigger_event('core.modify_bbcode_init', compact($vars)));
$this->bbcodes = $bbcodes;
}
/**
* Making some pre-checks for bbcodes as well as increasing the number of parsed items
*/
function check_bbcode($bbcode, &$in)
{
// when using the /e modifier, preg_replace slashes double-quotes but does not
// seem to slash anything else
$in = str_replace("\r\n", "\n", str_replace('\"', '"', $in));
// Trimming here to make sure no empty bbcodes are parsed accidently
if (trim($in) == '')
{
return false;
}
$this->parsed_items[$bbcode]++;
return true;
}
/**
* Transform some characters in valid bbcodes
*/
function bbcode_specialchars($text)
{
$str_from = array('<', '>', '[', ']', '.', ':');
$str_to = array('<', '>', '[', ']', '.', ':');
return str_replace($str_from, $str_to, $text);
}
/**
* Parse size tag
*/
function bbcode_size($stx, $in)
{
global $user, $config;
if (!$this->check_bbcode('size', $in))
{
return $in;
}
if ($config['max_' . $this->mode . '_font_size'] && $config['max_' . $this->mode . '_font_size'] < $stx)
{
$this->warn_msg[] = $user->lang('MAX_FONT_SIZE_EXCEEDED', (int) $config['max_' . $this->mode . '_font_size']);
return '[size=' . $stx . ']' . $in . '[/size]';
}
// Do not allow size=0
if ($stx <= 0)
{
return '[size=' . $stx . ']' . $in . '[/size]';
}
return '[size=' . $stx . ':' . $this->bbcode_uid . ']' . $in . '[/size:' . $this->bbcode_uid . ']';
}
/**
* Parse color tag
*/
function bbcode_color($stx, $in)
{
if (!$this->check_bbcode('color', $in))
{
return $in;
}
return '[color=' . $stx . ':' . $this->bbcode_uid . ']' . $in . '[/color:' . $this->bbcode_uid . ']';
}
/**
* Parse u tag
*/
function bbcode_underline($in)
{
if (!$this->check_bbcode('u', $in))
{
return $in;
}
return '[u:' . $this->bbcode_uid . ']' . $in . '[/u:' . $this->bbcode_uid . ']';
}
/**
* Parse b tag
*/
function bbcode_strong($in)
{
if (!$this->check_bbcode('b', $in))
{
return $in;
}
return '[b:' . $this->bbcode_uid . ']' . $in . '[/b:' . $this->bbcode_uid . ']';
}
/**
* Parse i tag
*/
function bbcode_italic($in)
{
if (!$this->check_bbcode('i', $in))
{
return $in;
}
return '[i:' . $this->bbcode_uid . ']' . $in . '[/i:' . $this->bbcode_uid . ']';
}
/**
* Parse img tag
*/
function bbcode_img($in)
{
global $user, $config;
if (!$this->check_bbcode('img', $in))
{
return $in;
}
$in = trim($in);
$error = false;
$in = str_replace(' ', '%20', $in);
// Checking urls
if (!preg_match('#^' . get_preg_expression('url') . '$#i', $in) && !preg_match('#^' . get_preg_expression('www_url') . '$#i', $in))
{
return '[img]' . $in . '[/img]';
}
// Try to cope with a common user error... not specifying a protocol but only a subdomain
if (!preg_match('#^[a-z0-9]+://#i', $in))
{
$in = 'http://' . $in;
}
if ($config['max_' . $this->mode . '_img_height'] || $config['max_' . $this->mode . '_img_width'])
{
$stats = @getimagesize(htmlspecialchars_decode($in));
if ($stats === false)
{
$error = true;
$this->warn_msg[] = $user->lang['UNABLE_GET_IMAGE_SIZE'];
}
else
{
if ($config['max_' . $this->mode . '_img_height'] && $config['max_' . $this->mode . '_img_height'] < $stats[1])
{
$error = true;
$this->warn_msg[] = $user->lang('MAX_IMG_HEIGHT_EXCEEDED', (int) $config['max_' . $this->mode . '_img_height']);
}
if ($config['max_' . $this->mode . '_img_width'] && $config['max_' . $this->mode . '_img_width'] < $stats[0])
{
$error = true;
$this->warn_msg[] = $user->lang('MAX_IMG_WIDTH_EXCEEDED', (int) $config['max_' . $this->mode . '_img_width']);
}
}
}
if ($error || $this->path_in_domain($in))
{
return '[img]' . $in . '[/img]';
}
return '[img:' . $this->bbcode_uid . ']' . $this->bbcode_specialchars($in) . '[/img:' . $this->bbcode_uid . ']';
}
/**
* Parse flash tag
*/
function bbcode_flash($width, $height, $in)
{
global $user, $config;
if (!$this->check_bbcode('flash', $in))
{
return $in;
}
$in = trim($in);
$error = false;
// Do not allow 0-sizes generally being entered
if ($width <= 0 || $height <= 0)
{
return '[flash=' . $width . ',' . $height . ']' . $in . '[/flash]';
}
$in = str_replace(' ', '%20', $in);
// Make sure $in is a URL.
if (!preg_match('#^' . get_preg_expression('url') . '$#i', $in) &&
!preg_match('#^' . get_preg_expression('www_url') . '$#i', $in))
{
return '[flash=' . $width . ',' . $height . ']' . $in . '[/flash]';
}
// Apply the same size checks on flash files as on images
if ($config['max_' . $this->mode . '_img_height'] || $config['max_' . $this->mode . '_img_width'])
{
if ($config['max_' . $this->mode . '_img_height'] && $config['max_' . $this->mode . '_img_height'] < $height)
{
$error = true;
$this->warn_msg[] = $user->lang('MAX_FLASH_HEIGHT_EXCEEDED', (int) $config['max_' . $this->mode . '_img_height']);
}
if ($config['max_' . $this->mode . '_img_width'] && $config['max_' . $this->mode . '_img_width'] < $width)
{
$error = true;
$this->warn_msg[] = $user->lang('MAX_FLASH_WIDTH_EXCEEDED', (int) $config['max_' . $this->mode . '_img_width']);
}
}
if ($error || $this->path_in_domain($in))
{
return '[flash=' . $width . ',' . $height . ']' . $in . '[/flash]';
}
return '[flash=' . $width . ',' . $height . ':' . $this->bbcode_uid . ']' . $this->bbcode_specialchars($in) . '[/flash:' . $this->bbcode_uid . ']';
}
/**
* Parse inline attachments [ia]
*/
function bbcode_attachment($stx, $in)
{
if (!$this->check_bbcode('attachment', $in))
{
return $in;
}
return '[attachment=' . $stx . ':' . $this->bbcode_uid . ']<!-- ia' . $stx . ' -->' . trim($in) . '<!-- ia' . $stx . ' -->[/attachment:' . $this->bbcode_uid . ']';
}
/**
* Parse code text from code tag
* @access private
*/
function bbcode_parse_code($stx, &$code)
{
switch (strtolower($stx))
{
case 'php':
$remove_tags = false;
$str_from = array('<', '>', '[', ']', '.', ':', ':');
$str_to = array('<', '>', '[', ']', '.', ':', ':');
$code = str_replace($str_from, $str_to, $code);
if (!preg_match('/\<\?.*?\?\>/is', $code))
{
$remove_tags = true;
$code = "<?php $code ?>";
}
$conf = array('highlight.bg', 'highlight.comment', 'highlight.default', 'highlight.html', 'highlight.keyword', 'highlight.string');
foreach ($conf as $ini_var)
{
@ini_set($ini_var, str_replace('highlight.', 'syntax', $ini_var));
}
// Because highlight_string is specialcharing the text (but we already did this before), we have to reverse this in order to get correct results
$code = htmlspecialchars_decode($code);
$code = highlight_string($code, true);
$str_from = array('<span style="color: ', '<font color="syntax', '</font>', '<code>', '</code>','[', ']', '.', ':');
$str_to = array('<span class="', '<span class="syntax', '</span>', '', '', '[', ']', '.', ':');
if ($remove_tags)
{
$str_from[] = '<span class="syntaxdefault"><?php </span>';
$str_to[] = '';
$str_from[] = '<span class="syntaxdefault"><?php ';
$str_to[] = '<span class="syntaxdefault">';
}
$code = str_replace($str_from, $str_to, $code);
$code = preg_replace('#^(<span class="[a-z_]+">)\n?(.*?)\n?(</span>)$#is', '$1$2$3', $code);
if ($remove_tags)
{
$code = preg_replace('#(<span class="[a-z]+">)?\?>(</span>)#', '$1 $2', $code);
}
$code = preg_replace('#^<span class="[a-z]+"><span class="([a-z]+)">(.*)</span></span>#s', '<span class="$1">$2</span>', $code);
$code = preg_replace('#(?:\s++| )*+</span>$#u', '</span>', $code);
// remove newline at the end
if (!empty($code) && substr($code, -1) == "\n")
{
$code = substr($code, 0, -1);
}
return "[code=$stx:" . $this->bbcode_uid . ']' . $code . '[/code:' . $this->bbcode_uid . ']';
break;
default:
return '[code:' . $this->bbcode_uid . ']' . $this->bbcode_specialchars($code) . '[/code:' . $this->bbcode_uid . ']';
break;
}
}
/**
* Parse code tag
* Expects the argument to start right after the opening [code] tag and to end with [/code]
*/
function bbcode_code($stx, $in)
{
if (!$this->check_bbcode('code', $in))
{
return $in;
}
// We remove the hardcoded elements from the code block here because it is not used in code blocks
// Having it here saves us one preg_replace per message containing [code] blocks
// Additionally, magic url parsing should go after parsing bbcodes, but for safety those are stripped out too...
$htm_match = get_preg_expression('bbcode_htm');
unset($htm_match[4], $htm_match[5]);
$htm_replace = array('\1', '\1', '\2', '\1');
$out = $code_block = '';
$open = 1;
while ($in)
{
// Determine position and tag length of next code block
preg_match('#(.*?)(\[code(?:=([a-z]+))?\])(.+)#is', $in, $buffer);
$pos = (isset($buffer[1])) ? strlen($buffer[1]) : false;
$tag_length = (isset($buffer[2])) ? strlen($buffer[2]) : false;
// Determine position of ending code tag
$pos2 = stripos($in, '[/code]');
// Which is the next block, ending code or code block
if ($pos !== false && $pos < $pos2)
{
// Open new block
if (!$open)
{
$out .= substr($in, 0, $pos);
$in = substr($in, $pos);
$stx = (isset($buffer[3])) ? $buffer[3] : '';
$code_block = '';
}
else
{
// Already opened block, just append to the current block
$code_block .= substr($in, 0, $pos) . ((isset($buffer[2])) ? $buffer[2] : '');
$in = substr($in, $pos);
}
$in = substr($in, $tag_length);
$open++;
}
else
{
// Close the block
if ($open == 1)
{
$code_block .= substr($in, 0, $pos2);
$code_block = preg_replace($htm_match, $htm_replace, $code_block);
// Parse this code block
$out .= $this->bbcode_parse_code($stx, $code_block);
$code_block = '';
$open--;
}
else if ($open)
{
// Close one open tag... add to the current code block
$code_block .= substr($in, 0, $pos2 + 7);
$open--;
}
else
{
// end code without opening code... will be always outside code block
$out .= substr($in, 0, $pos2 + 7);
}
$in = substr($in, $pos2 + 7);
}
}
// if now $code_block has contents we need to parse the remaining code while removing the last closing tag to match up.
if ($code_block)
{
$code_block = substr($code_block, 0, -7);
$code_block = preg_replace($htm_match, $htm_replace, $code_block);
$out .= $this->bbcode_parse_code($stx, $code_block);
}
return $out;
}
/**
* Parse list bbcode
* Expects the argument to start with a tag
*/
function bbcode_parse_list($in)
{
if (!$this->check_bbcode('list', $in))
{
return $in;
}
// $tok holds characters to stop at. Since the string starts with a '[' we'll get everything up to the first ']' which should be the opening [list] tag
$tok = ']';
$out = '[';
// First character is [
$in = substr($in, 1);
$list_end_tags = $item_end_tags = array();
do
{
$pos = strlen($in);
for ($i = 0, $tok_len = strlen($tok); $i < $tok_len; ++$i)
{
$tmp_pos = strpos($in, $tok[$i]);
if ($tmp_pos !== false && $tmp_pos < $pos)
{
$pos = $tmp_pos;
}
}
$buffer = substr($in, 0, $pos);
$tok = $in[$pos];
$in = substr($in, $pos + 1);
if ($tok == ']')
{
// if $tok is ']' the buffer holds a tag
if (strtolower($buffer) == '/list' && sizeof($list_end_tags))
{
// valid [/list] tag, check nesting so that we don't hit false positives
if (sizeof($item_end_tags) && sizeof($item_end_tags) >= sizeof($list_end_tags))
{
// current li tag has not been closed
$out = preg_replace('/\n?\[$/', '[', $out) . array_pop($item_end_tags) . '][';
}
$out .= array_pop($list_end_tags) . ']';
$tok = '[';
}
else if (preg_match('#^list(=[0-9a-z]+)?$#i', $buffer, $m))
{
// sub-list, add a closing tag
if (empty($m[1]) || preg_match('/^=(?:disc|square|circle)$/i', $m[1]))
{
array_push($list_end_tags, '/list:u:' . $this->bbcode_uid);
}
else
{
array_push($list_end_tags, '/list:o:' . $this->bbcode_uid);
}
$out .= 'list' . substr($buffer, 4) . ':' . $this->bbcode_uid . ']';
$tok = '[';
}
else
{
if (($buffer == '*' || substr($buffer, -2) == '[*') && sizeof($list_end_tags))
{
// the buffer holds a bullet tag and we have a [list] tag open
if (sizeof($item_end_tags) >= sizeof($list_end_tags))
{
if (substr($buffer, -2) == '[*')
{
$out .= substr($buffer, 0, -2) . '[';
}
// current li tag has not been closed
if (preg_match('/\n\[$/', $out, $m))
{
$out = preg_replace('/\n\[$/', '[', $out);
$buffer = array_pop($item_end_tags) . "]\n[*:" . $this->bbcode_uid;
}
else
{
$buffer = array_pop($item_end_tags) . '][*:' . $this->bbcode_uid;
}
}
else
{
$buffer = '*:' . $this->bbcode_uid;
}
$item_end_tags[] = '/*:m:' . $this->bbcode_uid;
}
else if ($buffer == '/*')
{
array_pop($item_end_tags);
$buffer = '/*:' . $this->bbcode_uid;
}
$out .= $buffer . $tok;
$tok = '[]';
}
}
else
{
// Not within a tag, just add buffer to the return string
$out .= $buffer . $tok;
$tok = ($tok == '[') ? ']' : '[]';
}
}
while ($in);
// do we have some tags open? close them now
if (sizeof($item_end_tags))
{
$out .= '[' . implode('][', $item_end_tags) . ']';
}
if (sizeof($list_end_tags))
{
$out .= '[' . implode('][', $list_end_tags) . ']';
}
return $out;
}
/**
* Parse quote bbcode
* Expects the argument to start with a tag
*/
function bbcode_quote($in)
{
global $config, $user;
$in = str_replace("\r\n", "\n", str_replace('\"', '"', trim($in)));
if (!$in)
{
return '';
}
// To let the parser not catch tokens within quote_username quotes we encode them before we start this...
$in = preg_replace('#quote="(.*?)"\]#ie', "'quote="' . str_replace(array('[', ']', '\\\"'), array('[', ']', '\"'), '\$1') . '"]'", $in);
$tok = ']';
$out = '[';
$in = substr($in, 1);
$close_tags = $error_ary = array();
$buffer = '';
do
{
$pos = strlen($in);
for ($i = 0, $tok_len = strlen($tok); $i < $tok_len; ++$i)
{
$tmp_pos = strpos($in, $tok[$i]);
if ($tmp_pos !== false && $tmp_pos < $pos)
{
$pos = $tmp_pos;
}
}
$buffer .= substr($in, 0, $pos);
$tok = $in[$pos];
$in = substr($in, $pos + 1);
if ($tok == ']')
{
if (strtolower($buffer) == '/quote' && sizeof($close_tags) && substr($out, -1, 1) == '[')
{
// we have found a closing tag
$out .= array_pop($close_tags) . ']';
$tok = '[';
$buffer = '';
/* Add space at the end of the closing tag if not happened before to allow following urls/smilies to be parsed correctly
* Do not try to think for the user. :/ Do not parse urls/smilies if there is no space - is the same as with other bbcodes too.
* Also, we won't have any spaces within $in anyway, only adding up spaces -> #10982
if (!$in || $in[0] !== ' ')
{
$out .= ' ';
}*/
}
else if (preg_match('#^quote(?:="(.*?)")?$#is', $buffer, $m) && substr($out, -1, 1) == '[')
{
$this->parsed_items['quote']++;
// the buffer holds a valid opening tag
if ($config['max_quote_depth'] && sizeof($close_tags) >= $config['max_quote_depth'])
{
if ($config['max_quote_depth'] == 1)
{
// Depth 1 - no nesting is allowed
$error_ary['quote_depth'] = $user->lang('QUOTE_NO_NESTING');
}
else
{
// There are too many nested quotes
$error_ary['quote_depth'] = $user->lang('QUOTE_DEPTH_EXCEEDED', (int) $config['max_quote_depth']);
}
$out .= $buffer . $tok;
$tok = '[]';
$buffer = '';
continue;
}
array_push($close_tags, '/quote:' . $this->bbcode_uid);
if (isset($m[1]) && $m[1])
{
$username = str_replace(array('[', ']'), array('[', ']'), $m[1]);
$username = preg_replace('#\[(?!b|i|u|color|url|email|/b|/i|/u|/color|/url|/email)#iU', '[$1', $username);
$end_tags = array();
$error = false;
preg_match_all('#\[((?:/)?(?:[a-z]+))#i', $username, $tags);
foreach ($tags[1] as $tag)
{
if ($tag[0] != '/')
{
$end_tags[] = '/' . $tag;
}
else
{
$end_tag = array_pop($end_tags);
$error = ($end_tag != $tag) ? true : false;
}
}
if ($error)
{
$username = $m[1];
}
$out .= 'quote="' . $username . '":' . $this->bbcode_uid . ']';
}
else
{
$out .= 'quote:' . $this->bbcode_uid . ']';
}
$tok = '[';
$buffer = '';
}
else if (preg_match('#^quote="(.*?)#is', $buffer, $m))
{
// the buffer holds an invalid opening tag
$buffer .= ']';
}
else
{
$out .= $buffer . $tok;
$tok = '[]';
$buffer = '';
}
}
else
{
/**
* Old quote code working fine, but having errors listed in bug #3572
*
* $out .= $buffer . $tok;
* $tok = ($tok == '[') ? ']' : '[]';
* $buffer = '';
*/
$out .= $buffer . $tok;
if ($tok == '[')
{
// Search the text for the next tok... if an ending quote comes first, then change tok to []
$pos1 = stripos($in, '[/quote');
// If the token ] comes first, we change it to ]
$pos2 = strpos($in, ']');
// If the token [ comes first, we change it to [
$pos3 = strpos($in, '[');
if ($pos1 !== false && ($pos2 === false || $pos1 < $pos2) && ($pos3 === false || $pos1 < $pos3))
{
$tok = '[]';
}
else if ($pos3 !== false && ($pos2 === false || $pos3 < $pos2))
{
$tok = '[';
}
else
{
$tok = ']';
}
}
else
{
$tok = '[]';
}
$buffer = '';
}
}
while ($in);
$out .= $buffer;
if (sizeof($close_tags))
{
$out .= '[' . implode('][', $close_tags) . ']';
}
foreach ($error_ary as $error_msg)
{
$this->warn_msg[] = $error_msg;
}
return $out;
}
/**
* Validate email
*/
function validate_email($var1, $var2)
{
$var1 = str_replace("\r\n", "\n", str_replace('\"', '"', trim($var1)));
$var2 = str_replace("\r\n", "\n", str_replace('\"', '"', trim($var2)));
$txt = $var2;
$email = ($var1) ? $var1 : $var2;
$validated = true;
if (!preg_match('/^' . get_preg_expression('email') . '$/i', $email))
{
$validated = false;
}
if (!$validated)
{
return '[email' . (($var1) ? "=$var1" : '') . ']' . $var2 . '[/email]';
}
$this->parsed_items['email']++;
if ($var1)
{
$retval = '[email=' . $this->bbcode_specialchars($email) . ':' . $this->bbcode_uid . ']' . $txt . '[/email:' . $this->bbcode_uid . ']';
}
else
{
$retval = '[email:' . $this->bbcode_uid . ']' . $this->bbcode_specialchars($email) . '[/email:' . $this->bbcode_uid . ']';
}
return $retval;
}
/**
* Validate url
*
* @param string $var1 optional url parameter for url bbcode: [url(=$var1)]$var2[/url]
* @param string $var2 url bbcode content: [url(=$var1)]$var2[/url]
*/
function validate_url($var1, $var2)
{
global $config;
$var1 = str_replace("\r\n", "\n", str_replace('\"', '"', trim($var1)));
$var2 = str_replace("\r\n", "\n", str_replace('\"', '"', trim($var2)));
$url = ($var1) ? $var1 : $var2;
if ($var1 && !$var2)
{
$var2 = $var1;
}
if (!$url)
{
return '[url' . (($var1) ? '=' . $var1 : '') . ']' . $var2 . '[/url]';
}
$valid = false;
$url = str_replace(' ', '%20', $url);
// Checking urls
if (preg_match('#^' . get_preg_expression('url') . '$#i', $url) ||
preg_match('#^' . get_preg_expression('www_url') . '$#i', $url) ||
preg_match('#^' . preg_quote(generate_board_url(), '#') . get_preg_expression('relative_url') . '$#i', $url))
{
$valid = true;
}
if ($valid)
{
$this->parsed_items['url']++;
// if there is no scheme, then add http schema
if (!preg_match('#^[a-z][a-z\d+\-.]*:/{2}#i', $url))
{
$url = 'http://' . $url;
}
// Is this a link to somewhere inside this board? If so then remove the session id from the url
if (strpos($url, generate_board_url()) !== false && strpos($url, 'sid=') !== false)
{
$url = preg_replace('/(&|\?)sid=[0-9a-f]{32}&/', '\1', $url);
$url = preg_replace('/(&|\?)sid=[0-9a-f]{32}$/', '', $url);
$url = append_sid($url);
}