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<?php
/**
*
* @package phpBB3
* @version $Id: functions_content.php 9515 2009-05-13 10:42:44Z acydburn $
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
/**
* gen_sort_selects()
* make_jumpbox()
* bump_topic_allowed()
* get_context()
* 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;
$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}" : '';
}
return;
}
/**
* Generate Jumpbox
*/
function make_jumpbox($action, $forum_id = false, $select_all = false, $acl_list = false, $force_display = false)
{
global $config, $auth, $template, $user, $db;
// We only return if the jumpbox is not forced to be displayed (in case it is needed for functionality)
if (!$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);
$right = $padding = 0;
$padding_store = array('0' => 0);
$display_jumpbox = false;
$iteration = 0;
// Sometimes it could happen that forums will be displayed here not be displayed within the index page
// This is the result of forums not displayed at index, having list permissions and a parent of a forum with no permissions.
// If this happens, the padding could be "broken"
while ($row = $db->sql_fetchrow($result))
{
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, $row['forum_id']))
{
continue;
}
if (!$display_jumpbox)
{
$template->assign_block_vars('jumpbox_forums', array(
'FORUM_ID' => ($select_all) ? 0 : -1,
'FORUM_NAME' => ($select_all) ? $user->lang['ALL_FORUMS'] : $user->lang['SELECT_FORUM'],
'S_FORUM_COUNT' => $iteration)
);
$iteration++;
$display_jumpbox = true;
}
$template->assign_block_vars('jumpbox_forums', 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)
);
for ($i = 0; $i < $padding; $i++)
{
$template->assign_block_vars('jumpbox_forums.level', array());
}
$iteration++;
}
$db->sql_freeresult($result);
unset($padding_store);
$template->assign_vars(array(
'S_DISPLAY_JUMPBOX' => $display_jumpbox,
'S_JUMPBOX_ACTION' => $action)
);
return;
}
/**
* Bump Topic Check - used by posting and viewtopic
*/
function bump_topic_allowed($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 ", ' '));
$word_indizes = array();
if (sizeof($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 (sizeof($word_indizes))
{
$word_indizes = array_unique($word_indizes);
sort($word_indizes);
$wordnum = sizeof($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 $final_text;
}
}
if (!sizeof($words) || !sizeof($word_indizes))
{
return (utf8_strlen($text) >= $length + 3) ? utf8_substr($text, 0, $length) . '...' : $text;
}
}
/**
* Decode text whereby text is coming from the db and expected to be pre-parsed content
* We are placing this outside of the message parser because we are often in need of it...
*/
function decode_message(&$message, $bbcode_uid = '')
{
global $config;
if ($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', '\1', '', '');
$message = preg_replace($match, $replace, $message);
}
/**
* Strips all bbcode from a text and returns the plain content
*/
function strip_bbcode(&$text, $uid = '')
{
if (!$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)
{
static $bbcode;
if (!$text)
{
return '';
}
$text = censor_text($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
{
$bbcode->bbcode($bitfield);
}
$bbcode->bbcode_second_pass($text, $uid);
}
$text = bbcode_nl2br($text);
$text = smiley_text($text, !($flags & OPTION_FLAG_SMILIES));
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 $text to be the value directly from request_var() and in it's non-parsed form
*/
function generate_text_for_storage(&$text, &$uid, &$bitfield, &$flags, $allow_bbcode = false, $allow_urls = false, $allow_smilies = false)
{
global $phpbb_root_path, $phpEx;
$uid = $bitfield = '';
$flags = (($allow_bbcode) ? OPTION_FLAG_BBCODE : 0) + (($allow_smilies) ? OPTION_FLAG_SMILIES : 0) + (($allow_urls) ? OPTION_FLAG_LINKS : 0);
if (!$text)
{
return;
}
if (!class_exists('parse_message'))
{
include($phpbb_root_path . 'includes/message_parser.' . $phpEx);
}
$message_parser = new parse_message($text);
$message_parser->parse($allow_bbcode, $allow_urls, $allow_smilies);
$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;
return;
}
/**
* 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_root_path, $phpEx;
decode_message($text, $uid);
return array(
'allow_bbcode' => ($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;
}
$short_url = (strlen($url) > 55) ? substr($url, 0, 39) . ' ... ' . substr($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 $html;
}
/**
* make_clickable function
*
* Replace magic urls of form http://xxx.xxx., www.xxx. and [email protected].
* Cuts down displayed size of link if over 50 chars, turns absolute links
* into relative versions when the server/script path matches the link
*/
function make_clickable($text, $server_url = false, $class = 'postlink')
{
if ($server_url === false)
{
$server_url = generate_board_url();
}
static $magic_url_match;
static $magic_url_replace;
static $static_class;
if (!is_array($magic_url_match) || $static_class != $class)
{
$static_class = $class;
$class = ($static_class) ? ' class="' . $static_class . '"' : '';
$local_class = ($static_class) ? ' class="' . $static_class . '-local"' : '';
$magic_url_match = $magic_url_replace = array();
// Be sure to not let the matches cross over. ;)
// relative urls for this board
$magic_url_match[] = '#(^|[\n\t (>.])(' . preg_quote($server_url, '#') . ')/(' . get_preg_expression('relative_url_inline') . ')#ie';
$magic_url_replace[] = "make_clickable_callback(MAGIC_URL_LOCAL, '\$1', '\$2', '\$3', '$local_class')";
// matches a xxxx://aaaaa.bbb.cccc. ...
$magic_url_match[] = '#(^|[\n\t (>.])(' . get_preg_expression('url_inline') . ')#ie';
$magic_url_replace[] = "make_clickable_callback(MAGIC_URL_FULL, '\$1', '\$2', '', '$class')";
// matches a "www.xxxx.yyyy[/zzzz]" kinda lazy URL thing
$magic_url_match[] = '#(^|[\n\t (>])(' . get_preg_expression('www_url_inline') . ')#ie';
$magic_url_replace[] = "make_clickable_callback(MAGIC_URL_WWW, '\$1', '\$2', '', '$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[] = '/(^|[\n\t (>])(' . get_preg_expression('email') . ')/ie';
$magic_url_replace[] = "make_clickable_callback(MAGIC_URL_EMAIL, '\$1', '\$2', '', '')";
}
return @preg_replace($magic_url_match, $magic_url_replace, $text);
}
/**
* Censoring
*/
function censor_text($text)
{
static $censors;
// We moved the word censor checks in here because we call this function quite often - and then only need to do the check once
if (!isset($censors) || !is_array($censors))
{
global $config, $user, $auth, $cache;
// We check here if the user is having viewing censors disabled (and also allowed to do so).
if (!$user->optionget('viewcensors') && $config['allow_nocensors'] && $auth->acl_get('u_chgcensors'))
{
$censors = array();
}
else
{
$censors = $cache->obtain_word_list();
}
}
if (sizeof($censors))
{
return preg_replace($censors['match'], $censors['replace'], $text);
}
return $text;
}
/**
* custom version of nl2br which takes custom BBCodes into account
*/
function bbcode_nl2br($text)
{
// custom BBCodes might contain carriage returns so they
// are not converted into <br /> so now revert that
$text = str_replace(array("\n", "\r"), array('<br />', "\n"), $text);
return $text;
}
/**
* Smiley processing
*/
function smiley_text($text, $force_option = false)
{
global $config, $user, $phpbb_root_path;
if ($force_option || !$config['allow_smilies'] || !$user->optionget('viewsmilies'))
{
return preg_replace('#<!\-\- s(.*?) \-\-><img src="\{SMILIES_PATH\}\/.*? \/><!\-\- s\1 \-\->#', '\1', $text);
}
else
{
return preg_replace('#<!\-\- s(.*?) \-\-><img src="\{SMILIES_PATH\}\/(.*?) \/><!\-\- s\1 \-\->#', '<img src="' . $phpbb_root_path . $config['smilies_path'] . '/\2 />', $text);
}
}
/**
* General attachment parsing
*
* @param mixed $forum_id The forum id the attachments are displayed in (false if in private message)
* @param string &$message The post/private message
* @param array &$attachments The attachments to parse for (inline) display. The attachments array will hold templated data after parsing.
* @param array &$update_count The attachment counts to be updated - will be filled
* @param bool $preview If set to true the attachments are parsed for preview. Within preview mode the comments are fetched from the given $attachments array and not fetched from the database.
*/
function parse_attachments($forum_id, &$message, &$attachments, &$update_count, $preview = false)
{
if (!sizeof($attachments))
{
return;
}
global $template, $cache, $user;
global $extensions, $config, $phpbb_root_path, $phpEx;
//
$compiled_attachments = array();
if (!isset($template->filename['attachment_tpl']))
{
$template->set_filenames(array(
'attachment_tpl' => 'attachment.html')
);
}
if (empty($extensions) || !is_array($extensions))
{
$extensions = $cache->obtain_attach_extensions($forum_id);
}
// Look for missing attachment information...
$attach_ids = array();
foreach ($attachments as $pos => $attachment)
{
// If is_orphan is set, we need to retrieve the attachments again...
if (!isset($attachment['extension']) && !isset($attachment['physical_filename']))
{
$attach_ids[(int) $attachment['attach_id']] = $pos;
}
}
// Grab attachments (security precaution)
if (sizeof($attach_ids))
{
global $db;
$new_attachment_data = array();
$sql = 'SELECT *
FROM ' . ATTACHMENTS_TABLE . '
WHERE ' . $db->sql_in_set('attach_id', array_keys($attach_ids));
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
if (!isset($attach_ids[$row['attach_id']]))
{
continue;
}
// If we preview attachments we will set some retrieved values here
if ($preview)
{
$row['attach_comment'] = $attachments[$attach_ids[$row['attach_id']]]['attach_comment'];
}
$new_attachment_data[$attach_ids[$row['attach_id']]] = $row;
}
$db->sql_freeresult($result);
$attachments = $new_attachment_data;
unset($new_attachment_data);
}
// Sort correctly
if ($config['display_order'])
{
// Ascending sort
krsort($attachments);
}
else
{
// Descending sort
ksort($attachments);
}
foreach ($attachments as $attachment)
{
if (!sizeof($attachment))
{
continue;
}
// We need to reset/empty the _file block var, because this function might be called more than once
$template->destroy_block_vars('_file');
$block_array = array();
// Some basics...
$attachment['extension'] = strtolower(trim($attachment['extension']));
$filename = $phpbb_root_path . $config['upload_path'] . '/' . basename($attachment['physical_filename']);
$thumbnail_filename = $phpbb_root_path . $config['upload_path'] . '/thumb_' . basename($attachment['physical_filename']);
$upload_icon = '';
if (isset($extensions[$attachment['extension']]))
{
if ($user->img('icon_topic_attach', '') && !$extensions[$attachment['extension']]['upload_icon'])
{
$upload_icon = $user->img('icon_topic_attach', '');
}
else if ($extensions[$attachment['extension']]['upload_icon'])
{
$upload_icon = '<img src="' . $phpbb_root_path . $config['upload_icons_path'] . '/' . trim($extensions[$attachment['extension']]['upload_icon']) . '" alt="" />';
}
}
$filesize = $attachment['filesize'];
$size_lang = ($filesize >= 1048576) ? $user->lang['MIB'] : (($filesize >= 1024) ? $user->lang['KIB'] : $user->lang['BYTES']);
$filesize = get_formatted_filesize($filesize, false);
$comment = bbcode_nl2br(censor_text($attachment['attach_comment']));
$block_array += array(
'UPLOAD_ICON' => $upload_icon,
'FILESIZE' => $filesize,
'SIZE_LANG' => $size_lang,
'DOWNLOAD_NAME' => basename($attachment['real_filename']),
'COMMENT' => $comment,
);
$denied = false;
if (!extension_allowed($forum_id, $attachment['extension'], $extensions))
{
$denied = true;
$block_array += array(
'S_DENIED' => true,
'DENIED_MESSAGE' => sprintf($user->lang['EXTENSION_DISABLED_AFTER_POSTING'], $attachment['extension'])
);
}
if (!$denied)
{
$l_downloaded_viewed = $download_link = '';
$display_cat = $extensions[$attachment['extension']]['display_cat'];
if ($display_cat == ATTACHMENT_CATEGORY_IMAGE)
{
if ($attachment['thumbnail'])
{
$display_cat = ATTACHMENT_CATEGORY_THUMB;
}
else
{
if ($config['img_display_inlined'])
{
if ($config['img_link_width'] || $config['img_link_height'])
{
$dimension = @getimagesize($filename);
// If the dimensions could not be determined or the image being 0x0 we display it as a link for safety purposes
if ($dimension === false || empty($dimension[0]) || empty($dimension[1]))
{
$display_cat = ATTACHMENT_CATEGORY_NONE;
}
else
{
$display_cat = ($dimension[0] <= $config['img_link_width'] && $dimension[1] <= $config['img_link_height']) ? ATTACHMENT_CATEGORY_IMAGE : ATTACHMENT_CATEGORY_NONE;
}
}
}
else
{
$display_cat = ATTACHMENT_CATEGORY_NONE;
}
}
}
// Make some descisions based on user options being set.
if (($display_cat == ATTACHMENT_CATEGORY_IMAGE || $display_cat == ATTACHMENT_CATEGORY_THUMB) && !$user->optionget('viewimg'))
{
$display_cat = ATTACHMENT_CATEGORY_NONE;
}
if ($display_cat == ATTACHMENT_CATEGORY_FLASH && !$user->optionget('viewflash'))
{
$display_cat = ATTACHMENT_CATEGORY_NONE;
}
$download_link = append_sid("{$phpbb_root_path}download/file.$phpEx", 'id=' . $attachment['attach_id']);
switch ($display_cat)
{
// Images
case ATTACHMENT_CATEGORY_IMAGE:
$l_downloaded_viewed = 'VIEWED_COUNT';
$inline_link = append_sid("{$phpbb_root_path}download/file.$phpEx", 'id=' . $attachment['attach_id']);
$download_link .= '&mode=view';
$block_array += array(
'S_IMAGE' => true,
'U_INLINE_LINK' => $inline_link,
);
$update_count[] = $attachment['attach_id'];
break;
// Images, but display Thumbnail
case ATTACHMENT_CATEGORY_THUMB:
$l_downloaded_viewed = 'VIEWED_COUNT';
$thumbnail_link = append_sid("{$phpbb_root_path}download/file.$phpEx", 'id=' . $attachment['attach_id'] . '&t=1');
$download_link .= '&mode=view';
$block_array += array(
'S_THUMBNAIL' => true,
'THUMB_IMAGE' => $thumbnail_link,
);
$update_count[] = $attachment['attach_id'];
break;
// Windows Media Streams
case ATTACHMENT_CATEGORY_WM:
$l_downloaded_viewed = 'VIEWED_COUNT';
// Giving the filename directly because within the wm object all variables are in local context making it impossible
// to validate against a valid session (all params can differ)
// $download_link = $filename;
$block_array += array(
'U_FORUM' => generate_board_url(),
'ATTACH_ID' => $attachment['attach_id'],
'S_WM_FILE' => true,
);
// Viewed/Heared File ... update the download count
$update_count[] = $attachment['attach_id'];
break;
// Real Media Streams
case ATTACHMENT_CATEGORY_RM:
case ATTACHMENT_CATEGORY_QUICKTIME:
$l_downloaded_viewed = 'VIEWED_COUNT';
$block_array += array(
'S_RM_FILE' => ($display_cat == ATTACHMENT_CATEGORY_RM) ? true : false,
'S_QUICKTIME_FILE' => ($display_cat == ATTACHMENT_CATEGORY_QUICKTIME) ? true : false,
'U_FORUM' => generate_board_url(),
'ATTACH_ID' => $attachment['attach_id'],
);
// Viewed/Heared File ... update the download count
$update_count[] = $attachment['attach_id'];
break;
// Macromedia Flash Files
case ATTACHMENT_CATEGORY_FLASH:
list($width, $height) = @getimagesize($filename);
$l_downloaded_viewed = 'VIEWED_COUNT';
$block_array += array(
'S_FLASH_FILE' => true,
'WIDTH' => $width,
'HEIGHT' => $height,
'U_VIEW_LINK' => $download_link . '&view=1',
);
// Viewed/Heared File ... update the download count
$update_count[] = $attachment['attach_id'];
break;
default:
$l_downloaded_viewed = 'DOWNLOAD_COUNT';
$block_array += array(
'S_FILE' => true,
);
break;
}
$l_download_count = (!isset($attachment['download_count']) || $attachment['download_count'] == 0) ? $user->lang[$l_downloaded_viewed . '_NONE'] : (($attachment['download_count'] == 1) ? sprintf($user->lang[$l_downloaded_viewed], $attachment['download_count']) : sprintf($user->lang[$l_downloaded_viewed . 'S'], $attachment['download_count']));
$block_array += array(
'U_DOWNLOAD_LINK' => $download_link,
'L_DOWNLOAD_COUNT' => $l_download_count
);
}
$template->assign_block_vars('_file', $block_array);
$compiled_attachments[] = $template->assign_display('attachment_tpl');
}
$attachments = $compiled_attachments;
unset($compiled_attachments);
$tpl_size = sizeof($attachments);
$unset_tpl = array();
preg_match_all('#<!\-\- ia([0-9]+) \-\->(.*?)<!\-\- ia\1 \-\->#', $message, $matches, PREG_PATTERN_ORDER);
$replace = array();
foreach ($matches[0] as $num => $capture)
{
// Flip index if we are displaying the reverse way
$index = ($config['display_order']) ? ($tpl_size-($matches[1][$num] + 1)) : $matches[1][$num];
$replace['from'][] = $matches[0][$num];
$replace['to'][] = (isset($attachments[$index])) ? $attachments[$index] : sprintf($user->lang['MISSING_INLINE_ATTACHMENT'], $matches[2][array_search($index, $matches[1])]);
$unset_tpl[] = $index;
}
if (isset($replace['from']))
{
$message = str_replace($replace['from'], $replace['to'], $message);
}
$unset_tpl = array_unique($unset_tpl);
// Needed to let not display the inlined attachments at the end of the post again
foreach ($unset_tpl as $index)
{
unset($attachments[$index]);
}
}
/**
* Check if extension is allowed to be posted.
*
* @param mixed $forum_id The forum id to check or false if private message
* @param string $extension The extension to check, for example zip.
* @param array &$extensions The extension array holding the information from the cache (will be obtained if empty)
*
* @return bool False if the extension is not allowed to be posted, else true.
*/
function extension_allowed($forum_id, $extension, &$extensions)
{
if (empty($extensions))
{
global $cache;
$extensions = $cache->obtain_attach_extensions($forum_id);
}
return (!isset($extensions['_allowed_'][$extension])) ? false : true;
}
/**
* Truncates string while retaining special characters if going over the max length
* The default max length is 60 at the moment
* The maximum storage length is there to fit the string within the given length. The string may be further truncated due to html entities.
* For example: string given is 'a "quote"' (length: 9), would be a stored as 'a "quote"' (length: 19)
*
* @param string $string The text to truncate to the given length. String is specialchared.
* @param int $max_length Maximum length of string (multibyte character count as 1 char / Html entity count as 1 char)
* @param int $max_store_length Maximum character length of string (multibyte character count as 1 char / Html entity count as entity chars).
* @param bool $allow_reply Allow Re: in front of string
* @param string $append String to be appended
*/
function truncate_string($string, $max_length = 60, $max_store_length = 255, $allow_reply = true, $append = '')
{
$chars = array();
$strip_reply = false;
$stripped = false;
if ($allow_reply && strpos($string, 'Re: ') === 0)
{
$strip_reply = true;
$string = substr($string, 4);
}
$_chars = utf8_str_split(htmlspecialchars_decode($string));
$chars = array_map('utf8_htmlspecialchars', $_chars);
// Now check the length ;)
if (sizeof($chars) > $max_length)
{
// Cut off the last elements from the array
$string = implode('', array_slice($chars, 0, $max_length - utf8_strlen($append)));
$stripped = true;
}
// Due to specialchars, we may not be able to store the string...
if (utf8_strlen($string) > $max_store_length)
{
// let's split again, we do not want half-baked strings where entities are split
$_chars = utf8_str_split(htmlspecialchars_decode($string));
$chars = array_map('utf8_htmlspecialchars', $_chars);
do
{
array_pop($chars);
$string = implode('', $chars);
}
while (!empty($chars) && utf8_strlen($string) > $max_store_length);
}
if ($strip_reply)
{
$string = 'Re: ' . $string;
}
if ($append != '' && $stripped)
{
$string = $string . $append;
}
return $string;
}
/**
* Get username details for placing into templates.
* This function caches all modes on first call, except for no_profile and anonymous user - determined by $user_id.
*
* @param string $mode Can be profile (for getting an url to the profile), username (for obtaining the username), colour (for obtaining the user colour), full (for obtaining a html string representing a coloured link to the users profile) or no_profile (the same as full but forcing no profile link)
* @param int $user_id The users id
* @param string $username The users name
* @param string $username_colour The users colour
* @param string $guest_username optional parameter to specify the guest username. It will be used in favor of the GUEST language variable then.
* @param string $custom_profile_url optional parameter to specify a profile url. The user id get appended to this url as &u={user_id}
*
* @return string A string consisting of what is wanted based on $mode.
* @author BartVB, Acyd Burn
*/
function get_username_string($mode, $user_id, $username, $username_colour = '', $guest_username = false, $custom_profile_url = false)
{
static $_profile_cache;
// We cache some common variables we need within this function
if (empty($_profile_cache))
{
global $phpbb_root_path, $phpEx;
$_profile_cache['base_url'] = append_sid("{$phpbb_root_path}memberlist.$phpEx", 'mode=viewprofile&u={USER_ID}');
$_profile_cache['tpl_noprofile'] = '{USERNAME}';
$_profile_cache['tpl_noprofile_colour'] = '<span style="color: {USERNAME_COLOUR};" class="username-coloured">{USERNAME}</span>';
$_profile_cache['tpl_profile'] = '<a href="{PROFILE_URL}">{USERNAME}</a>';
$_profile_cache['tpl_profile_colour'] = '<a href="{PROFILE_URL}" style="color: {USERNAME_COLOUR};" class="username-coloured">{USERNAME}</a>';
}
global $user, $auth;
// This switch makes sure we only run code required for the mode
switch ($mode)
{
case 'full':
case 'no_profile':
case 'colour':
// Build correct username colour
$username_colour = ($username_colour) ? '#' . $username_colour : '';
// Return colour
if ($mode == 'colour')
{
return $username_colour;
}
// no break;
case 'username':
// Build correct username
if ($guest_username === false)
{
$username = ($username) ? $username : $user->lang['GUEST'];
}
else
{
$username = ($user_id && $user_id != ANONYMOUS) ? $username : ((!empty($guest_username)) ? $guest_username : $user->lang['GUEST']);
}
// Return username
if ($mode == 'username')
{
return $username;
}
// no break;
case 'profile':
// Build correct profile url - only show if not anonymous and permission to view profile if registered user
// For anonymous the link leads to a login page.
if ($user_id && $user_id != ANONYMOUS && ($user->data['user_id'] == ANONYMOUS || $auth->acl_get('u_viewprofile')))
{
$profile_url = ($custom_profile_url !== false) ? $custom_profile_url . '&u=' . (int) $user_id : str_replace(array('={USER_ID}', '=%7BUSER_ID%7D'), '=' . (int) $user_id, $_profile_cache['base_url']);
}
else
{
$profile_url = '';
}
// Return profile
if ($mode == 'profile')
{
return $profile_url;
}
// no break;
}
if (($mode == 'full' && !$profile_url) || $mode == 'no_profile')
{
return str_replace(array('{USERNAME_COLOUR}', '{USERNAME}'), array($username_colour, $username), (!$username_colour) ? $_profile_cache['tpl_noprofile'] : $_profile_cache['tpl_noprofile_colour']);
}
return str_replace(array('{PROFILE_URL}', '{USERNAME_COLOUR}', '{USERNAME}'), array($profile_url, $username_colour, $username), (!$username_colour) ? $_profile_cache['tpl_profile'] : $_profile_cache['tpl_profile_colour']);
}
/**
* @package phpBB3
*/
class bitfield
{
var $data;
function bitfield($bitfield = '')
{
$this->data = base64_decode($bitfield);
}
/**
*/
function get($n)
{
// Get the ($n / 8)th char
$byte = $n >> 3;
if (strlen($this->data) >= $byte + 1)
{
$c = $this->data[$byte];
// Lookup the ($n % 8)th bit of the byte
$bit = 7 - ($n & 7);
return (bool) (ord($c) & (1 << $bit));
}
else
{
return false;
}
}
function set($n)
{
$byte = $n >> 3;
$bit = 7 - ($n & 7);
if (strlen($this->data) >= $byte + 1)
{
$this->data[$byte] = $this->data[$byte] | chr(1 << $bit);
}
else
{
$this->data .= str_repeat("\0", $byte - strlen($this->data));
$this->data .= chr(1 << $bit);
}
}
function clear($n)
{
$byte = $n >> 3;
if (strlen($this->data) >= $byte + 1)
{
$bit = 7 - ($n & 7);
$this->data[$byte] = $this->data[$byte] &~ chr(1 << $bit);
}
}
function get_blob()
{
return $this->data;
}
function get_base64()
{
return base64_encode($this->data);
}
function get_bin()
{
$bin = '';
$len = strlen($this->data);
for ($i = 0; $i < $len; ++$i)
{
$bin .= str_pad(decbin(ord($this->data[$i])), 8, '0', STR_PAD_LEFT);
}
return $bin;
}
function get_all_set()
{
return array_keys(array_filter(str_split($this->get_bin())));
}
function merge($bitfield)
{
$this->data = $this->data | $bitfield->get_blob();
}
}
?>
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