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1785 lines (1542 loc) · 50.6 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;
}
/**
* gen_sort_selects()
* make_jumpbox()
* bump_topic_allowed()
* get_context()
* phpbb_clean_search_string()
* decode_message()
* strip_bbcode()
* generate_text_for_display()
* generate_text_for_storage()
* generate_text_for_edit()
* make_clickable_callback()
* make_clickable()
* censor_text()
* bbcode_nl2br()
* smiley_text()
* parse_attachments()
* extension_allowed()
* truncate_string()
* get_username_string()
* class bitfield
*/
/**
* Generate sort selection fields
*/
function gen_sort_selects(&$limit_days, &$sort_by_text, &$sort_days, &$sort_key, &$sort_dir, &$s_limit_days, &$s_sort_key, &$s_sort_dir, &$u_sort_param, $def_st = false, $def_sk = false, $def_sd = false)
{
global $user, $phpbb_dispatcher;
$sort_dir_text = array('a' => $user->lang['ASCENDING'], 'd' => $user->lang['DESCENDING']);
$sorts = array(
'st' => array(
'key' => 'sort_days',
'default' => $def_st,
'options' => $limit_days,
'output' => &$s_limit_days,
),
'sk' => array(
'key' => 'sort_key',
'default' => $def_sk,
'options' => $sort_by_text,
'output' => &$s_sort_key,
),
'sd' => array(
'key' => 'sort_dir',
'default' => $def_sd,
'options' => $sort_dir_text,
'output' => &$s_sort_dir,
),
);
$u_sort_param = '';
foreach ($sorts as $name => $sort_ary)
{
$key = $sort_ary['key'];
$selected = ${$sort_ary['key']};
// Check if the key is selectable. If not, we reset to the default or first key found.
// This ensures the values are always valid. We also set $sort_dir/sort_key/etc. to the
// correct value, else the protection is void. ;)
if (!isset($sort_ary['options'][$selected]))
{
if ($sort_ary['default'] !== false)
{
$selected = ${$key} = $sort_ary['default'];
}
else
{
@reset($sort_ary['options']);
$selected = ${$key} = key($sort_ary['options']);
}
}
$sort_ary['output'] = '<select name="' . $name . '" id="' . $name . '">';
foreach ($sort_ary['options'] as $option => $text)
{
$sort_ary['output'] .= '<option value="' . $option . '"' . (($selected == $option) ? ' selected="selected"' : '') . '>' . $text . '</option>';
}
$sort_ary['output'] .= '</select>';
$u_sort_param .= ($selected !== $sort_ary['default']) ? ((strlen($u_sort_param)) ? '&' : '') . "{$name}={$selected}" : '';
}
/**
* Run code before generated sort selects are returned
*
* @event core.gen_sort_selects_after
* @var int limit_days Days limit
* @var array sort_by_text Sort by text options
* @var int sort_days Sort by days flag
* @var string sort_key Sort key
* @var string sort_dir Sort dir
* @var string s_limit_days String of days limit
* @var string s_sort_key String of sort key
* @var string s_sort_dir String of sort dir
* @var string u_sort_param Sort URL params
* @var bool def_st Default sort days
* @var bool def_sk Default sort key
* @var bool def_sd Default sort dir
* @var array sorts Sorts
* @since 3.1.9-RC1
*/
$vars = array(
'limit_days',
'sort_by_text',
'sort_days',
'sort_key',
'sort_dir',
's_limit_days',
's_sort_key',
's_sort_dir',
'u_sort_param',
'def_st',
'def_sk',
'def_sd',
'sorts',
);
extract($phpbb_dispatcher->trigger_event('core.gen_sort_selects_after', compact($vars)));
return;
}
/**
* Generate Jumpbox
*/
function make_jumpbox($action, $forum_id = false, $select_all = false, $acl_list = false, $force_display = false)
{
global $config, $auth, $template, $user, $db, $phpbb_path_helper, $phpbb_dispatcher;
// We only return if the jumpbox is not forced to be displayed (in case it is needed for functionality)
if (!$config['load_jumpbox'] && $force_display === false)
{
return;
}
$sql = 'SELECT forum_id, forum_name, parent_id, forum_type, left_id, right_id
FROM ' . FORUMS_TABLE . '
ORDER BY left_id ASC';
$result = $db->sql_query($sql, 600);
$rowset = array();
while ($row = $db->sql_fetchrow($result))
{
$rowset[(int) $row['forum_id']] = $row;
}
$db->sql_freeresult($result);
$right = $padding = 0;
$padding_store = array('0' => 0);
$display_jumpbox = false;
$iteration = 0;
/**
* Modify the jumpbox forum list data
*
* @event core.make_jumpbox_modify_forum_list
* @var array rowset Array with the forums list data
* @since 3.1.10-RC1
*/
$vars = array('rowset');
extract($phpbb_dispatcher->trigger_event('core.make_jumpbox_modify_forum_list', compact($vars)));
// Sometimes it could happen that forums will be displayed here not be displayed within the index page
// This is the result of forums not displayed at index, having list permissions and a parent of a forum with no permissions.
// If this happens, the padding could be "broken"
foreach ($rowset as $row)
{
if ($row['left_id'] < $right)
{
$padding++;
$padding_store[$row['parent_id']] = $padding;
}
else if ($row['left_id'] > $right + 1)
{
// Ok, if the $padding_store for this parent is empty there is something wrong. For now we will skip over it.
// @todo digging deep to find out "how" this can happen.
$padding = (isset($padding_store[$row['parent_id']])) ? $padding_store[$row['parent_id']] : $padding;
}
$right = $row['right_id'];
if ($row['forum_type'] == FORUM_CAT && ($row['left_id'] + 1 == $row['right_id']))
{
// Non-postable forum with no subforums, don't display
continue;
}
if (!$auth->acl_get('f_list', $row['forum_id']))
{
// if the user does not have permissions to list this forum skip
continue;
}
if ($acl_list && !$auth->acl_gets($acl_list, $row['forum_id']))
{
continue;
}
$tpl_ary = array();
if (!$display_jumpbox)
{
$tpl_ary[] = array(
'FORUM_ID' => ($select_all) ? 0 : -1,
'FORUM_NAME' => ($select_all) ? $user->lang['ALL_FORUMS'] : $user->lang['SELECT_FORUM'],
'S_FORUM_COUNT' => $iteration,
'LINK' => $phpbb_path_helper->append_url_params($action, array('f' => $forum_id)),
);
$iteration++;
$display_jumpbox = true;
}
$tpl_ary[] = array(
'FORUM_ID' => $row['forum_id'],
'FORUM_NAME' => $row['forum_name'],
'SELECTED' => ($row['forum_id'] == $forum_id) ? ' selected="selected"' : '',
'S_FORUM_COUNT' => $iteration,
'S_IS_CAT' => ($row['forum_type'] == FORUM_CAT) ? true : false,
'S_IS_LINK' => ($row['forum_type'] == FORUM_LINK) ? true : false,
'S_IS_POST' => ($row['forum_type'] == FORUM_POST) ? true : false,
'LINK' => $phpbb_path_helper->append_url_params($action, array('f' => $row['forum_id'])),
);
/**
* Modify the jumpbox before it is assigned to the template
*
* @event core.make_jumpbox_modify_tpl_ary
* @var array row The data of the forum
* @var array tpl_ary Template data of the forum
* @since 3.1.10-RC1
*/
$vars = array(
'row',
'tpl_ary',
);
extract($phpbb_dispatcher->trigger_event('core.make_jumpbox_modify_tpl_ary', compact($vars)));
$template->assign_block_vars_array('jumpbox_forums', $tpl_ary);
unset($tpl_ary);
for ($i = 0; $i < $padding; $i++)
{
$template->assign_block_vars('jumpbox_forums.level', array());
}
$iteration++;
}
unset($padding_store, $rowset);
$url_parts = $phpbb_path_helper->get_url_parts($action);
$template->assign_vars(array(
'S_DISPLAY_JUMPBOX' => $display_jumpbox,
'S_JUMPBOX_ACTION' => $action,
'HIDDEN_FIELDS_FOR_JUMPBOX' => build_hidden_fields($url_parts['params']),
));
return;
}
/**
* Bump Topic Check - used by posting and viewtopic
*/
function bump_topic_allowed($forum_id, $topic_bumped, $last_post_time, $topic_poster, $last_topic_poster)
{
global $config, $auth, $user;
// Check permission and make sure the last post was not already bumped
if (!$auth->acl_get('f_bump', $forum_id) || $topic_bumped)
{
return false;
}
// Check bump time range, is the user really allowed to bump the topic at this time?
$bump_time = ($config['bump_type'] == 'm') ? $config['bump_interval'] * 60 : (($config['bump_type'] == 'h') ? $config['bump_interval'] * 3600 : $config['bump_interval'] * 86400);
// Check bump time
if ($last_post_time + $bump_time > time())
{
return false;
}
// Check bumper, only topic poster and last poster are allowed to bump
if ($topic_poster != $user->data['user_id'] && $last_topic_poster != $user->data['user_id'])
{
return false;
}
// A bump time of 0 will completely disable the bump feature... not intended but might be useful.
return $bump_time;
}
/**
* Generates a text with approx. the specified length which contains the specified words and their context
*
* @param string $text The full text from which context shall be extracted
* @param string $words An array of words which should be contained in the result, has to be a valid part of a PCRE pattern (escape with preg_quote!)
* @param int $length The desired length of the resulting text, however the result might be shorter or longer than this value
*
* @return string Context of the specified words separated by "..."
*/
function get_context($text, $words, $length = 400)
{
// first replace all whitespaces with single spaces
$text = preg_replace('/ +/', ' ', strtr($text, "\t\n\r\x0C ", ' '));
// we need to turn the entities back into their original form, to not cut the message in between them
$entities = array('<', '>', '[', ']', '.', ':', ':');
$characters = array('<', '>', '[', ']', '.', ':', ':');
$text = str_replace($entities, $characters, $text);
$word_indizes = array();
if (count($words))
{
$match = '';
// find the starting indizes of all words
foreach ($words as $word)
{
if ($word)
{
if (preg_match('#(?:[^\w]|^)(' . $word . ')(?:[^\w]|$)#i', $text, $match))
{
if (empty($match[1]))
{
continue;
}
$pos = utf8_strpos($text, $match[1]);
if ($pos !== false)
{
$word_indizes[] = $pos;
}
}
}
}
unset($match);
if (count($word_indizes))
{
$word_indizes = array_unique($word_indizes);
sort($word_indizes);
$wordnum = count($word_indizes);
// number of characters on the right and left side of each word
$sequence_length = (int) ($length / (2 * $wordnum)) - 2;
$final_text = '';
$word = $j = 0;
$final_text_index = -1;
// cycle through every character in the original text
for ($i = $word_indizes[$word], $n = utf8_strlen($text); $i < $n; $i++)
{
// if the current position is the start of one of the words then append $sequence_length characters to the final text
if (isset($word_indizes[$word]) && ($i == $word_indizes[$word]))
{
if ($final_text_index < $i - $sequence_length - 1)
{
$final_text .= '... ' . preg_replace('#^([^ ]*)#', '', utf8_substr($text, $i - $sequence_length, $sequence_length));
}
else
{
// if the final text is already nearer to the current word than $sequence_length we only append the text
// from its current index on and distribute the unused length to all other sequenes
$sequence_length += (int) (($final_text_index - $i + $sequence_length + 1) / (2 * $wordnum));
$final_text .= utf8_substr($text, $final_text_index + 1, $i - $final_text_index - 1);
}
$final_text_index = $i - 1;
// add the following characters to the final text (see below)
$word++;
$j = 1;
}
if ($j > 0)
{
// add the character to the final text and increment the sequence counter
$final_text .= utf8_substr($text, $i, 1);
$final_text_index++;
$j++;
// if this is a whitespace then check whether we are done with this sequence
if (utf8_substr($text, $i, 1) == ' ')
{
// only check whether we have to exit the context generation completely if we haven't already reached the end anyway
if ($i + 4 < $n)
{
if (($j > $sequence_length && $word >= $wordnum) || utf8_strlen($final_text) > $length)
{
$final_text .= ' ...';
break;
}
}
else
{
// make sure the text really reaches the end
$j -= 4;
}
// stop context generation and wait for the next word
if ($j > $sequence_length)
{
$j = 0;
}
}
}
}
return str_replace($characters, $entities, $final_text);
}
}
if (!count($words) || !count($word_indizes))
{
return str_replace($characters, $entities, ((utf8_strlen($text) >= $length + 3) ? utf8_substr($text, 0, $length) . '...' : $text));
}
}
/**
* Cleans a search string by removing single wildcards from it and replacing multiple spaces with a single one.
*
* @param string $search_string The full search string which should be cleaned.
*
* @return string The cleaned search string without any wildcards and multiple spaces.
*/
function phpbb_clean_search_string($search_string)
{
// This regular expressions matches every single wildcard.
// That means one after a whitespace or the beginning of the string or one before a whitespace or the end of the string.
$search_string = preg_replace('#(?<=^|\s)\*+(?=\s|$)#', '', $search_string);
$search_string = trim($search_string);
$search_string = preg_replace(array('#\s+#u', '#\*+#u'), array(' ', '*'), $search_string);
return $search_string;
}
/**
* Decode text whereby text is coming from the db and expected to be pre-parsed content
* We are placing this outside of the message parser because we are often in need of it...
*
* NOTE: special chars are kept encoded
*
* @param string &$message Original message, passed by reference
* @param string $bbcode_uid BBCode UID
* @return null
*/
function decode_message(&$message, $bbcode_uid = '')
{
global $phpbb_container, $phpbb_dispatcher;
/**
* Use this event to modify the message before it is decoded
*
* @event core.decode_message_before
* @var string message_text The message content
* @var string bbcode_uid The message BBCode UID
* @since 3.1.9-RC1
*/
$message_text = $message;
$vars = array('message_text', 'bbcode_uid');
extract($phpbb_dispatcher->trigger_event('core.decode_message_before', compact($vars)));
$message = $message_text;
if (preg_match('#^<[rt][ >]#', $message))
{
$message = htmlspecialchars($phpbb_container->get('text_formatter.utils')->unparse($message), ENT_COMPAT);
}
else
{
if ($bbcode_uid)
{
$match = array('<br />', "[/*:m:$bbcode_uid]", ":u:$bbcode_uid", ":o:$bbcode_uid", ":$bbcode_uid");
$replace = array("\n", '', '', '', '');
}
else
{
$match = array('<br />');
$replace = array("\n");
}
$message = str_replace($match, $replace, $message);
$match = get_preg_expression('bbcode_htm');
$replace = array('\1', '\1', '\2', '\2', '\1', '', '');
$message = preg_replace($match, $replace, $message);
}
/**
* Use this event to modify the message after it is decoded
*
* @event core.decode_message_after
* @var string message_text The message content
* @var string bbcode_uid The message BBCode UID
* @since 3.1.9-RC1
*/
$message_text = $message;
$vars = array('message_text', 'bbcode_uid');
extract($phpbb_dispatcher->trigger_event('core.decode_message_after', compact($vars)));
$message = $message_text;
}
/**
* Strips all bbcode from a text in place
*/
function strip_bbcode(&$text, $uid = '')
{
global $phpbb_container;
if (preg_match('#^<[rt][ >]#', $text))
{
$text = $phpbb_container->get('text_formatter.utils')->clean_formatting($text);
}
else
{
if (!$uid)
{
$uid = '[0-9a-z]{5,}';
}
$text = preg_replace("#\[\/?[a-z0-9\*\+\-]+(?:=(?:".*"|[^\]]*))?(?::[a-z])?(\:$uid)\]#", ' ', $text);
$match = get_preg_expression('bbcode_htm');
$replace = array('\1', '\1', '\2', '\1', '', '');
$text = preg_replace($match, $replace, $text);
}
}
/**
* For display of custom parsed text on user-facing pages
* Expects $text to be the value directly from the database (stored value)
*/
function generate_text_for_display($text, $uid, $bitfield, $flags, $censor_text = true)
{
static $bbcode;
global $auth, $config, $user;
global $phpbb_dispatcher, $phpbb_container;
if ($text === '')
{
return '';
}
/**
* Use this event to modify the text before it is parsed
*
* @event core.modify_text_for_display_before
* @var string text The text to parse
* @var string uid The BBCode UID
* @var string bitfield The BBCode Bitfield
* @var int flags The BBCode Flags
* @var bool censor_text Whether or not to apply word censors
* @since 3.1.0-a1
*/
$vars = array('text', 'uid', 'bitfield', 'flags', 'censor_text');
extract($phpbb_dispatcher->trigger_event('core.modify_text_for_display_before', compact($vars)));
if (preg_match('#^<[rt][ >]#', $text))
{
$renderer = $phpbb_container->get('text_formatter.renderer');
// Temporarily switch off viewcensors if applicable
$old_censor = $renderer->get_viewcensors();
// Check here if the user is having viewing censors disabled (and also allowed to do so).
if (!$user->optionget('viewcensors') && $config['allow_nocensors'] && $auth->acl_get('u_chgcensors'))
{
$censor_text = false;
}
if ($old_censor !== $censor_text)
{
$renderer->set_viewcensors($censor_text);
}
$text = $renderer->render($text);
// Restore the previous value
if ($old_censor !== $censor_text)
{
$renderer->set_viewcensors($old_censor);
}
}
else
{
if ($censor_text)
{
$text = censor_text($text);
}
// Parse bbcode if bbcode uid stored and bbcode enabled
if ($uid && ($flags & OPTION_FLAG_BBCODE))
{
if (!class_exists('bbcode'))
{
global $phpbb_root_path, $phpEx;
include($phpbb_root_path . 'includes/bbcode.' . $phpEx);
}
if (empty($bbcode))
{
$bbcode = new bbcode($bitfield);
}
else
{
$bbcode->bbcode_set_bitfield($bitfield);
}
$bbcode->bbcode_second_pass($text, $uid);
}
$text = bbcode_nl2br($text);
$text = smiley_text($text, !($flags & OPTION_FLAG_SMILIES));
}
/**
* Use this event to modify the text after it is parsed
*
* @event core.modify_text_for_display_after
* @var string text The text to parse
* @var string uid The BBCode UID
* @var string bitfield The BBCode Bitfield
* @var int flags The BBCode Flags
* @since 3.1.0-a1
*/
$vars = array('text', 'uid', 'bitfield', 'flags');
extract($phpbb_dispatcher->trigger_event('core.modify_text_for_display_after', compact($vars)));
return $text;
}
/**
* For parsing custom parsed text to be stored within the database.
* This function additionally returns the uid and bitfield that needs to be stored.
* Expects $text to be the value directly from $request->variable() and in it's non-parsed form
*
* @param string $text The text to be replaced with the parsed one
* @param string $uid The BBCode uid for this parse
* @param string $bitfield The BBCode bitfield for this parse
* @param int $flags The allow_bbcode, allow_urls and allow_smilies compiled into a single integer.
* @param bool $allow_bbcode If BBCode is allowed (i.e. if BBCode is parsed)
* @param bool $allow_urls If urls is allowed
* @param bool $allow_smilies If smilies are allowed
* @param bool $allow_img_bbcode
* @param bool $allow_flash_bbcode
* @param bool $allow_quote_bbcode
* @param bool $allow_url_bbcode
* @param string $mode Mode to parse text as, e.g. post or sig
*
* @return array An array of string with the errors that occurred while parsing
*/
function generate_text_for_storage(&$text, &$uid, &$bitfield, &$flags, $allow_bbcode = false, $allow_urls = false, $allow_smilies = false, $allow_img_bbcode = true, $allow_flash_bbcode = true, $allow_quote_bbcode = true, $allow_url_bbcode = true, $mode = 'post')
{
global $phpbb_root_path, $phpEx, $phpbb_dispatcher;
/**
* Use this event to modify the text before it is prepared for storage
*
* @event core.modify_text_for_storage_before
* @var string text The text to parse
* @var string uid The BBCode UID
* @var string bitfield The BBCode Bitfield
* @var int flags The BBCode Flags
* @var bool allow_bbcode Whether or not to parse BBCode
* @var bool allow_urls Whether or not to parse URLs
* @var bool allow_smilies Whether or not to parse Smilies
* @var bool allow_img_bbcode Whether or not to parse the [img] BBCode
* @var bool allow_flash_bbcode Whether or not to parse the [flash] BBCode
* @var bool allow_quote_bbcode Whether or not to parse the [quote] BBCode
* @var bool allow_url_bbcode Whether or not to parse the [url] BBCode
* @var string mode Mode to parse text as, e.g. post or sig
* @since 3.1.0-a1
* @changed 3.2.0-a1 Added mode
*/
$vars = array(
'text',
'uid',
'bitfield',
'flags',
'allow_bbcode',
'allow_urls',
'allow_smilies',
'allow_img_bbcode',
'allow_flash_bbcode',
'allow_quote_bbcode',
'allow_url_bbcode',
'mode',
);
extract($phpbb_dispatcher->trigger_event('core.modify_text_for_storage_before', compact($vars)));
$uid = $bitfield = '';
$flags = (($allow_bbcode) ? OPTION_FLAG_BBCODE : 0) + (($allow_smilies) ? OPTION_FLAG_SMILIES : 0) + (($allow_urls) ? OPTION_FLAG_LINKS : 0);
if (!class_exists('parse_message'))
{
include($phpbb_root_path . 'includes/message_parser.' . $phpEx);
}
$message_parser = new parse_message($text);
$message_parser->parse($allow_bbcode, $allow_urls, $allow_smilies, $allow_img_bbcode, $allow_flash_bbcode, $allow_quote_bbcode, $allow_url_bbcode, true, $mode);
$text = $message_parser->message;
$uid = $message_parser->bbcode_uid;
// If the bbcode_bitfield is empty, there is no need for the uid to be stored.
if (!$message_parser->bbcode_bitfield)
{
$uid = '';
}
$bitfield = $message_parser->bbcode_bitfield;
/**
* Use this event to modify the text after it is prepared for storage
*
* @event core.modify_text_for_storage_after
* @var string text The text to parse
* @var string uid The BBCode UID
* @var string bitfield The BBCode Bitfield
* @var int flags The BBCode Flags
* @var string message_parser The message_parser object
* @since 3.1.0-a1
* @changed 3.1.11-RC1 Added message_parser to vars
*/
$vars = array('text', 'uid', 'bitfield', 'flags', 'message_parser');
extract($phpbb_dispatcher->trigger_event('core.modify_text_for_storage_after', compact($vars)));
return $message_parser->warn_msg;
}
/**
* For decoding custom parsed text for edits as well as extracting the flags
* Expects $text to be the value directly from the database (pre-parsed content)
*/
function generate_text_for_edit($text, $uid, $flags)
{
global $phpbb_dispatcher;
/**
* Use this event to modify the text before it is decoded for editing
*
* @event core.modify_text_for_edit_before
* @var string text The text to parse
* @var string uid The BBCode UID
* @var int flags The BBCode Flags
* @since 3.1.0-a1
*/
$vars = array('text', 'uid', 'flags');
extract($phpbb_dispatcher->trigger_event('core.modify_text_for_edit_before', compact($vars)));
decode_message($text, $uid);
/**
* Use this event to modify the text after it is decoded for editing
*
* @event core.modify_text_for_edit_after
* @var string text The text to parse
* @var int flags The BBCode Flags
* @since 3.1.0-a1
*/
$vars = array('text', 'flags');
extract($phpbb_dispatcher->trigger_event('core.modify_text_for_edit_after', compact($vars)));
return array(
'allow_bbcode' => ($flags & OPTION_FLAG_BBCODE) ? 1 : 0,
'allow_smilies' => ($flags & OPTION_FLAG_SMILIES) ? 1 : 0,
'allow_urls' => ($flags & OPTION_FLAG_LINKS) ? 1 : 0,
'text' => $text
);
}
/**
* A subroutine of make_clickable used with preg_replace
* It places correct HTML around an url, shortens the displayed text
* and makes sure no entities are inside URLs
*/
function make_clickable_callback($type, $whitespace, $url, $relative_url, $class)
{
$orig_url = $url;
$orig_relative = $relative_url;
$append = '';
$url = htmlspecialchars_decode($url);
$relative_url = htmlspecialchars_decode($relative_url);
// make sure no HTML entities were matched
$chars = array('<', '>', '"');
$split = false;
foreach ($chars as $char)
{
$next_split = strpos($url, $char);
if ($next_split !== false)
{
$split = ($split !== false) ? min($split, $next_split) : $next_split;
}
}
if ($split !== false)
{
// an HTML entity was found, so the URL has to end before it
$append = substr($url, $split) . $relative_url;
$url = substr($url, 0, $split);
$relative_url = '';
}
else if ($relative_url)
{
// same for $relative_url
$split = false;
foreach ($chars as $char)
{
$next_split = strpos($relative_url, $char);
if ($next_split !== false)
{
$split = ($split !== false) ? min($split, $next_split) : $next_split;
}
}
if ($split !== false)
{
$append = substr($relative_url, $split);
$relative_url = substr($relative_url, 0, $split);
}
}
// if the last character of the url is a punctuation mark, exclude it from the url
$last_char = ($relative_url) ? $relative_url[strlen($relative_url) - 1] : $url[strlen($url) - 1];
switch ($last_char)
{
case '.':
case '?':
case '!':
case ':':
case ',':
$append = $last_char;
if ($relative_url)
{
$relative_url = substr($relative_url, 0, -1);
}
else
{
$url = substr($url, 0, -1);
}
break;
// set last_char to empty here, so the variable can be used later to
// check whether a character was removed
default:
$last_char = '';
break;
}
$short_url = (utf8_strlen($url) > 55) ? utf8_substr($url, 0, 39) . ' ... ' . utf8_substr($url, -10) : $url;
switch ($type)
{
case MAGIC_URL_LOCAL:
$tag = 'l';
$relative_url = preg_replace('/[&?]sid=[0-9a-f]{32}$/', '', preg_replace('/([&?])sid=[0-9a-f]{32}&/', '$1', $relative_url));
$url = $url . '/' . $relative_url;
$text = $relative_url;
// this url goes to http://domain.tld/path/to/board/ which
// would result in an empty link if treated as local so
// don't touch it and let MAGIC_URL_FULL take care of it.
if (!$relative_url)
{
return $whitespace . $orig_url . '/' . $orig_relative; // slash is taken away by relative url pattern
}
break;
case MAGIC_URL_FULL:
$tag = 'm';
$text = $short_url;
break;
case MAGIC_URL_WWW:
$tag = 'w';
$url = 'http://' . $url;
$text = $short_url;
break;
case MAGIC_URL_EMAIL:
$tag = 'e';
$text = $short_url;
$url = 'mailto:' . $url;
break;
}
$url = htmlspecialchars($url);
$text = htmlspecialchars($text);
$append = htmlspecialchars($append);
$html = "$whitespace<!-- $tag --><a$class href=\"$url\">$text</a><!-- $tag -->$append";
return $html;
}
/**
* make_clickable function
*
* Replace magic urls of form http://xxx.xxx., www.xxx. and xxx@xxx.xxx.
* Cuts down displayed size of link if over 50 chars, turns absolute links
* into relative versions when the server/script path matches the link
*/
function make_clickable($text, $server_url = false, $class = 'postlink')
{
if ($server_url === false)
{
$server_url = generate_board_url();
}
static $static_class;
static $magic_url_match_args;
if (!isset($magic_url_match_args[$server_url]) || $static_class != $class)
{
$static_class = $class;
$class = ($static_class) ? ' class="' . $static_class . '"' : '';
$local_class = ($static_class) ? ' class="' . $static_class . '-local"' : '';
if (!is_array($magic_url_match_args))
{
$magic_url_match_args = array();
}
// relative urls for this board
$magic_url_match_args[$server_url][] = array(
'#(^|[\n\t (>.])(' . preg_quote($server_url, '#') . ')/(' . get_preg_expression('relative_url_inline') . ')#iu',
MAGIC_URL_LOCAL,
$local_class,
);
// matches a xxxx://aaaaa.bbb.cccc. ...
$magic_url_match_args[$server_url][] = array(
'#(^|[\n\t (>.])(' . get_preg_expression('url_inline') . ')#iu',
MAGIC_URL_FULL,
$class,
);
// matches a "www.xxxx.yyyy[/zzzz]" kinda lazy URL thing
$magic_url_match_args[$server_url][] = array(
'#(^|[\n\t (>])(' . get_preg_expression('www_url_inline') . ')#iu',
MAGIC_URL_WWW,
$class,
);
// matches an email@domain type address at the start of a line, or after a space or after what might be a BBCode.
$magic_url_match_args[$server_url][] = array(
'/(^|[\n\t (>])(' . get_preg_expression('email') . ')/iu',
MAGIC_URL_EMAIL,
'',
);
}
foreach ($magic_url_match_args[$server_url] as $magic_args)
{
if (preg_match($magic_args[0], $text, $matches))
{
$text = preg_replace_callback($magic_args[0], function($matches) use ($magic_args)
{
$relative_url = isset($matches[3]) ? $matches[3] : '';
return make_clickable_callback($magic_args[1], $matches[1], $matches[2], $relative_url, $magic_args[2]);
}, $text);
}
}
return $text;
}
/**
* Censoring
*/
function censor_text($text)
{
static $censors;