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Elsensee/functions.php

Created July 28, 2013 13:17
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Proposed patch for ticket 9576...
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functions.php
<?php
/**
*
* @package phpBB3
* @version $Id$
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
// Common global functions
/**
* set_var
*
* Set variable, used by {@link request_var the request_var function}
*
* @access private
*/
function set_var(&$result, $var, $type, $multibyte = false)
{
settype($var, $type);
$result = $var;
if ($type == 'string')
{
$result = trim(htmlspecialchars(str_replace(array("\r\n", "\r", "\0"), array("\n", "\n", ''), $result), ENT_COMPAT, 'UTF-8'));
if (!empty($result))
{
// Make sure multibyte characters are wellformed
if ($multibyte)
{
if (!preg_match('/^./u', $result))
{
$result = '';
}
}
else
{
// no multibyte, allow only ASCII (0-127)
$result = preg_replace('/[\x80-\xFF]/', '?', $result);
}
}
$result = (STRIP) ? stripslashes($result) : $result;
}
}
/**
* request_var
*
* Used to get passed variable
*/
function request_var($var_name, $default, $multibyte = false, $cookie = false)
{
if (!$cookie && isset($_COOKIE[$var_name]))
{
if (!isset($_GET[$var_name]) && !isset($_POST[$var_name]))
{
return (is_array($default)) ? array() : $default;
}
$_REQUEST[$var_name] = isset($_POST[$var_name]) ? $_POST[$var_name] : $_GET[$var_name];
}
$super_global = ($cookie) ? '_COOKIE' : '_REQUEST';
if (!isset($GLOBALS[$super_global][$var_name]) || is_array($GLOBALS[$super_global][$var_name]) != is_array($default))
{
return (is_array($default)) ? array() : $default;
}
$var = $GLOBALS[$super_global][$var_name];
if (!is_array($default))
{
$type = gettype($default);
}
else
{
list($key_type, $type) = each($default);
$type = gettype($type);
$key_type = gettype($key_type);
if ($type == 'array')
{
reset($default);
$default = current($default);
list($sub_key_type, $sub_type) = each($default);
$sub_type = gettype($sub_type);
$sub_type = ($sub_type == 'array') ? 'NULL' : $sub_type;
$sub_key_type = gettype($sub_key_type);
}
}
if (is_array($var))
{
$_var = $var;
$var = array();
foreach ($_var as $k => $v)
{
set_var($k, $k, $key_type);
if ($type == 'array' && is_array($v))
{
foreach ($v as $_k => $_v)
{
if (is_array($_v))
{
$_v = null;
}
set_var($_k, $_k, $sub_key_type, $multibyte);
set_var($var[$k][$_k], $_v, $sub_type, $multibyte);
}
}
else
{
if ($type == 'array' || is_array($v))
{
$v = null;
}
set_var($var[$k], $v, $type, $multibyte);
}
}
}
else
{
set_var($var, $var, $type, $multibyte);
}
return $var;
}
/**
* Sets a configuration option's value.
*
* Please note that this function does not update the is_dynamic value for
* an already existing config option.
*
* @param string $config_name The configuration option's name
* @param string $config_value New configuration value
* @param bool $is_dynamic Whether this variable should be cached (false) or
* if it changes too frequently (true) to be
* efficiently cached.
*
* @return null
*/
function set_config($config_name, $config_value, $is_dynamic = false)
{
global $db, $cache, $config;
$sql = 'UPDATE ' . CONFIG_TABLE . "
SET config_value = '" . $db->sql_escape($config_value) . "'
WHERE config_name = '" . $db->sql_escape($config_name) . "'";
$db->sql_query($sql);
if (!$db->sql_affectedrows() && !isset($config[$config_name]))
{
$sql = 'INSERT INTO ' . CONFIG_TABLE . ' ' . $db->sql_build_array('INSERT', array(
'config_name' => $config_name,
'config_value' => $config_value,
'is_dynamic' => ($is_dynamic) ? 1 : 0));
$db->sql_query($sql);
}
$config[$config_name] = $config_value;
if (!$is_dynamic)
{
$cache->destroy('config');
}
}
/**
* Increments an integer config value directly in the database.
*
* @param string $config_name The configuration option's name
* @param int $increment Amount to increment by
* @param bool $is_dynamic Whether this variable should be cached (false) or
* if it changes too frequently (true) to be
* efficiently cached.
*
* @return null
*/
function set_config_count($config_name, $increment, $is_dynamic = false)
{
global $db, $cache;
switch ($db->sql_layer)
{
case 'firebird':
// Precision must be from 1 to 18
$sql_update = 'CAST(CAST(config_value as DECIMAL(18, 0)) + ' . (int) $increment . ' as VARCHAR(255))';
break;
case 'postgres':
// Need to cast to text first for PostgreSQL 7.x
$sql_update = 'CAST(CAST(config_value::text as DECIMAL(255, 0)) + ' . (int) $increment . ' as VARCHAR(255))';
break;
// MySQL, SQlite, mssql, mssql_odbc, oracle
default:
$sql_update = 'config_value + ' . (int) $increment;
break;
}
$db->sql_query('UPDATE ' . CONFIG_TABLE . ' SET config_value = ' . $sql_update . " WHERE config_name = '" . $db->sql_escape($config_name) . "'");
if (!$is_dynamic)
{
$cache->destroy('config');
}
}
/**
* Generates an alphanumeric random string of given length
*
* @return string
*/
function gen_rand_string($num_chars = 8)
{
// [a, z] + [0, 9] = 36
return substr(strtoupper(base_convert(unique_id(), 16, 36)), 0, $num_chars);
}
/**
* Generates a user-friendly alphanumeric random string of given length
* We remove 0 and O so users cannot confuse those in passwords etc.
*
* @return string
*/
function gen_rand_string_friendly($num_chars = 8)
{
$rand_str = unique_id();
// Remove Z and Y from the base_convert(), replace 0 with Z and O with Y
// [a, z] + [0, 9] - {z, y} = [a, z] + [0, 9] - {0, o} = 34
$rand_str = str_replace(array('0', 'O'), array('Z', 'Y'), strtoupper(base_convert($rand_str, 16, 34)));
return substr($rand_str, 0, $num_chars);
}
/**
* Return unique id
* @param string $extra additional entropy
*/
function unique_id($extra = 'c')
{
static $dss_seeded = false;
global $config;
$val = $config['rand_seed'] . microtime();
$val = md5($val);
$config['rand_seed'] = md5($config['rand_seed'] . $val . $extra);
if ($dss_seeded !== true && ($config['rand_seed_last_update'] < time() - rand(1,10)))
{
set_config('rand_seed_last_update', time(), true);
set_config('rand_seed', $config['rand_seed'], true);
$dss_seeded = true;
}
return substr($val, 4, 16);
}
/**
* Wrapper for mt_rand() which allows swapping $min and $max parameters.
*
* PHP does not allow us to swap the order of the arguments for mt_rand() anymore.
* (since PHP 5.3.4, see http://bugs.php.net/46587)
*
* @param int $min Lowest value to be returned
* @param int $max Highest value to be returned
*
* @return int Random integer between $min and $max (or $max and $min)
*/
function phpbb_mt_rand($min, $max)
{
return ($min > $max) ? mt_rand($max, $min) : mt_rand($min, $max);
}
/**
* Wrapper for getdate() which returns the equivalent array for UTC timestamps.
*
* @param int $time Unix timestamp (optional)
*
* @return array Returns an associative array of information related to the timestamp.
* See http://www.php.net/manual/en/function.getdate.php
*/
function phpbb_gmgetdate($time = false)
{
if ($time === false)
{
$time = time();
}
// getdate() interprets timestamps in local time.
// What follows uses the fact that getdate() and
// date('Z') balance each other out.
return getdate($time - date('Z'));
}
/**
* Return formatted string for filesizes
*
* @param mixed $value filesize in bytes
* (non-negative number; int, float or string)
* @param bool $string_only true if language string should be returned
* @param array $allowed_units only allow these units (data array indexes)
*
* @return mixed data array if $string_only is false
* @author bantu
*/
function get_formatted_filesize($value, $string_only = true, $allowed_units = false)
{
global $user;
$available_units = array(
'tb' => array(
'min' => 1099511627776, // pow(2, 40)
'index' => 4,
'si_unit' => 'TB',
'iec_unit' => 'TIB',
),
'gb' => array(
'min' => 1073741824, // pow(2, 30)
'index' => 3,
'si_unit' => 'GB',
'iec_unit' => 'GIB',
),
'mb' => array(
'min' => 1048576, // pow(2, 20)
'index' => 2,
'si_unit' => 'MB',
'iec_unit' => 'MIB',
),
'kb' => array(
'min' => 1024, // pow(2, 10)
'index' => 1,
'si_unit' => 'KB',
'iec_unit' => 'KIB',
),
'b' => array(
'min' => 0,
'index' => 0,
'si_unit' => 'BYTES', // Language index
'iec_unit' => 'BYTES', // Language index
),
);
foreach ($available_units as $si_identifier => $unit_info)
{
if (!empty($allowed_units) && $si_identifier != 'b' && !in_array($si_identifier, $allowed_units))
{
continue;
}
if ($value >= $unit_info['min'])
{
$unit_info['si_identifier'] = $si_identifier;
break;
}
}
unset($available_units);
for ($i = 0; $i < $unit_info['index']; $i++)
{
$value /= 1024;
}
$value = round($value, 2);
// Lookup units in language dictionary
$unit_info['si_unit'] = (isset($user->lang[$unit_info['si_unit']])) ? $user->lang[$unit_info['si_unit']] : $unit_info['si_unit'];
$unit_info['iec_unit'] = (isset($user->lang[$unit_info['iec_unit']])) ? $user->lang[$unit_info['iec_unit']] : $unit_info['iec_unit'];
// Default to IEC
$unit_info['unit'] = $unit_info['iec_unit'];
if (!$string_only)
{
$unit_info['value'] = $value;
return $unit_info;
}
return $value . ' ' . $unit_info['unit'];
}
/**
* Determine whether we are approaching the maximum execution time. Should be called once
* at the beginning of the script in which it's used.
* @return bool Either true if the maximum execution time is nearly reached, or false
* if some time is still left.
*/
function still_on_time($extra_time = 15)
{
static $max_execution_time, $start_time;
$time = explode(' ', microtime());
$current_time = $time[0] + $time[1];
if (empty($max_execution_time))
{
$max_execution_time = (function_exists('ini_get')) ? (int) @ini_get('max_execution_time') : (int) @get_cfg_var('max_execution_time');
// If zero, then set to something higher to not let the user catch the ten seconds barrier.
if ($max_execution_time === 0)
{
$max_execution_time = 50 + $extra_time;
}
$max_execution_time = min(max(10, ($max_execution_time - $extra_time)), 50);
// For debugging purposes
// $max_execution_time = 10;
global $starttime;
$start_time = (empty($starttime)) ? $current_time : $starttime;
}
return (ceil($current_time - $start_time) < $max_execution_time) ? true : false;
}
/**
*
* @version Version 0.1 / slightly modified for phpBB 3.0.x (using $H$ as hash type identifier)
*
* Portable PHP password hashing framework.
*
* Written by Solar Designer <solar at openwall.com> in 2004-2006 and placed in
* the public domain.
*
* There's absolutely no warranty.
*
* The homepage URL for this framework is:
*
* http://www.openwall.com/phpass/
*
* Please be sure to update the Version line if you edit this file in any way.
* It is suggested that you leave the main version number intact, but indicate
* your project name (after the slash) and add your own revision information.
*
* Please do not change the "private" password hashing method implemented in
* here, thereby making your hashes incompatible. However, if you must, please
* change the hash type identifier (the "$P$") to something different.
*
* Obviously, since this code is in the public domain, the above are not
* requirements (there can be none), but merely suggestions.
*
*
* Hash the password
*/
function phpbb_hash($password)
{
$itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
$random_state = unique_id();
$random = '';
$count = 6;
if (($fh = @fopen('/dev/urandom', 'rb')))
{
$random = fread($fh, $count);
fclose($fh);
}
if (strlen($random) < $count)
{
$random = '';
for ($i = 0; $i < $count; $i += 16)
{
$random_state = md5(unique_id() . $random_state);
$random .= pack('H*', md5($random_state));
}
$random = substr($random, 0, $count);
}
$hash = _hash_crypt_private($password, _hash_gensalt_private($random, $itoa64), $itoa64);
if (strlen($hash) == 34)
{
return $hash;
}
return md5($password);
}
/**
* Check for correct password
*
* @param string $password The password in plain text
* @param string $hash The stored password hash
*
* @return bool Returns true if the password is correct, false if not.
*/
function phpbb_check_hash($password, $hash)
{
$itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
if (strlen($hash) == 34)
{
return (_hash_crypt_private($password, $hash, $itoa64) === $hash) ? true : false;
}
return (md5($password) === $hash) ? true : false;
}
/**
* Generate salt for hash generation
*/
function _hash_gensalt_private($input, &$itoa64, $iteration_count_log2 = 6)
{
if ($iteration_count_log2 < 4 || $iteration_count_log2 > 31)
{
$iteration_count_log2 = 8;
}
$output = '$H$';
$output .= $itoa64[min($iteration_count_log2 + ((PHP_VERSION >= 5) ? 5 : 3), 30)];
$output .= _hash_encode64($input, 6, $itoa64);
return $output;
}
/**
* Encode hash
*/
function _hash_encode64($input, $count, &$itoa64)
{
$output = '';
$i = 0;
do
{
$value = ord($input[$i++]);
$output .= $itoa64[$value & 0x3f];
if ($i < $count)
{
$value |= ord($input[$i]) << 8;
}
$output .= $itoa64[($value >> 6) & 0x3f];
if ($i++ >= $count)
{
break;
}
if ($i < $count)
{
$value |= ord($input[$i]) << 16;
}
$output .= $itoa64[($value >> 12) & 0x3f];
if ($i++ >= $count)
{
break;
}
$output .= $itoa64[($value >> 18) & 0x3f];
}
while ($i < $count);
return $output;
}
/**
* The crypt function/replacement
*/
function _hash_crypt_private($password, $setting, &$itoa64)
{
$output = '*';
// Check for correct hash
if (substr($setting, 0, 3) != '$H$' && substr($setting, 0, 3) != '$P$')
{
return $output;
}
$count_log2 = strpos($itoa64, $setting[3]);
if ($count_log2 < 7 || $count_log2 > 30)
{
return $output;
}
$count = 1 << $count_log2;
$salt = substr($setting, 4, 8);
if (strlen($salt) != 8)
{
return $output;
}
/**
* We're kind of forced to use MD5 here since it's the only
* cryptographic primitive available in all versions of PHP
* currently in use. To implement our own low-level crypto
* in PHP would result in much worse performance and
* consequently in lower iteration counts and hashes that are
* quicker to crack (by non-PHP code).
*/
if (PHP_VERSION >= 5)
{
$hash = md5($salt . $password, true);
do
{
$hash = md5($hash . $password, true);
}
while (--$count);
}
else
{
$hash = pack('H*', md5($salt . $password));
do
{
$hash = pack('H*', md5($hash . $password));
}
while (--$count);
}
$output = substr($setting, 0, 12);
$output .= _hash_encode64($hash, 16, $itoa64);
return $output;
}
/**
* Hashes an email address to a big integer
*
* @param string $email Email address
*
* @return string Unsigned Big Integer
*/
function phpbb_email_hash($email)
{
return sprintf('%u', crc32(strtolower($email))) . strlen($email);
}
/**
* Wrapper for version_compare() that allows using uppercase A and B
* for alpha and beta releases.
*
* See http://www.php.net/manual/en/function.version-compare.php
*
* @param string $version1 First version number
* @param string $version2 Second version number
* @param string $operator Comparison operator (optional)
*
* @return mixed Boolean (true, false) if comparison operator is specified.
* Integer (-1, 0, 1) otherwise.
*/
function phpbb_version_compare($version1, $version2, $operator = null)
{
$version1 = strtolower($version1);
$version2 = strtolower($version2);
if (is_null($operator))
{
return version_compare($version1, $version2);
}
else
{
return version_compare($version1, $version2, $operator);
}
}
/**
* Global function for chmodding directories and files for internal use
*
* This function determines owner and group whom the file belongs to and user and group of PHP and then set safest possible file permissions.
* The function determines owner and group from common.php file and sets the same to the provided file.
* The function uses bit fields to build the permissions.
* The function sets the appropiate execute bit on directories.
*
* Supported constants representing bit fields are:
*
* CHMOD_ALL - all permissions (7)
* CHMOD_READ - read permission (4)
* CHMOD_WRITE - write permission (2)
* CHMOD_EXECUTE - execute permission (1)
*
* NOTE: The function uses POSIX extension and fileowner()/filegroup() functions. If any of them is disabled, this function tries to build proper permissions, by calling is_readable() and is_writable() functions.
*
* @param string $filename The file/directory to be chmodded
* @param int $perms Permissions to set
*
* @return bool true on success, otherwise false
* @author faw, phpBB Group
*/
function phpbb_chmod($filename, $perms = CHMOD_READ)
{
static $_chmod_info;
// Return if the file no longer exists.
if (!file_exists($filename))
{
return false;
}
// Determine some common vars
if (empty($_chmod_info))
{
if (!function_exists('fileowner') || !function_exists('filegroup'))
{
// No need to further determine owner/group - it is unknown
$_chmod_info['process'] = false;
}
else
{
global $phpbb_root_path, $phpEx;
// Determine owner/group of common.php file and the filename we want to change here
$common_php_owner = @fileowner($phpbb_root_path . 'common.' . $phpEx);
$common_php_group = @filegroup($phpbb_root_path . 'common.' . $phpEx);
// And the owner and the groups PHP is running under.
$php_uid = (function_exists('posix_getuid')) ? @posix_getuid() : false;
$php_gids = (function_exists('posix_getgroups')) ? @posix_getgroups() : false;
// If we are unable to get owner/group, then do not try to set them by guessing
if (!$php_uid || empty($php_gids) || !$common_php_owner || !$common_php_group)
{
$_chmod_info['process'] = false;
}
else
{
$_chmod_info = array(
'process' => true,
'common_owner' => $common_php_owner,
'common_group' => $common_php_group,
'php_uid' => $php_uid,
'php_gids' => $php_gids,
);
}
}
}
if ($_chmod_info['process'])
{
$file_uid = @fileowner($filename);
$file_gid = @filegroup($filename);
// Change owner
if (@chown($filename, $_chmod_info['common_owner']))
{
clearstatcache();
$file_uid = @fileowner($filename);
}
// Change group
if (@chgrp($filename, $_chmod_info['common_group']))
{
clearstatcache();
$file_gid = @filegroup($filename);
}
// If the file_uid/gid now match the one from common.php we can process further, else we are not able to change something
if ($file_uid != $_chmod_info['common_owner'] || $file_gid != $_chmod_info['common_group'])
{
$_chmod_info['process'] = false;
}
}
// Still able to process?
if ($_chmod_info['process'])
{
if ($file_uid == $_chmod_info['php_uid'])
{
$php = 'owner';
}
else if (in_array($file_gid, $_chmod_info['php_gids']))
{
$php = 'group';
}
else
{
// Since we are setting the everyone bit anyway, no need to do expensive operations
$_chmod_info['process'] = false;
}
}
// We are not able to determine or change something
if (!$_chmod_info['process'])
{
$php = 'other';
}
// Owner always has read/write permission
$owner = CHMOD_READ | CHMOD_WRITE;
if (is_dir($filename))
{
$owner |= CHMOD_EXECUTE;
// Only add execute bit to the permission if the dir needs to be readable
if ($perms & CHMOD_READ)
{
$perms |= CHMOD_EXECUTE;
}
}
switch ($php)
{
case 'owner':
$result = @chmod($filename, ($owner << 6) + (0 << 3) + (0 << 0));
clearstatcache();
if (is_readable($filename) && phpbb_is_writable($filename))
{
break;
}
case 'group':
$result = @chmod($filename, ($owner << 6) + ($perms << 3) + (0 << 0));
clearstatcache();
if ((!($perms & CHMOD_READ) || is_readable($filename)) && (!($perms & CHMOD_WRITE) || phpbb_is_writable($filename)))
{
break;
}
case 'other':
$result = @chmod($filename, ($owner << 6) + ($perms << 3) + ($perms << 0));
clearstatcache();
if ((!($perms & CHMOD_READ) || is_readable($filename)) && (!($perms & CHMOD_WRITE) || phpbb_is_writable($filename)))
{
break;
}
default:
return false;
break;
}
return $result;
}
/**
* Test if a file/directory is writable
*
* This function calls the native is_writable() when not running under
* Windows and it is not disabled.
*
* @param string $file Path to perform write test on
* @return bool True when the path is writable, otherwise false.
*/
function phpbb_is_writable($file)
{
if (strtolower(substr(PHP_OS, 0, 3)) === 'win' || !function_exists('is_writable'))
{
if (file_exists($file))
{
// Canonicalise path to absolute path
$file = phpbb_realpath($file);
if (is_dir($file))
{
// Test directory by creating a file inside the directory
$result = @tempnam($file, 'i_w');
if (is_string($result) && file_exists($result))
{
unlink($result);
// Ensure the file is actually in the directory (returned realpathed)
return (strpos($result, $file) === 0) ? true : false;
}
}
else
{
$handle = @fopen($file, 'r+');
if (is_resource($handle))
{
fclose($handle);
return true;
}
}
}
else
{
// file does not exist test if we can write to the directory
$dir = dirname($file);
if (file_exists($dir) && is_dir($dir) && phpbb_is_writable($dir))
{
return true;
}
}
return false;
}
else
{
return is_writable($file);
}
}
// Compatibility functions
if (!function_exists('array_combine'))
{
/**
* A wrapper for the PHP5 function array_combine()
* @param array $keys contains keys for the resulting array
* @param array $values contains values for the resulting array
*
* @return Returns an array by using the values from the keys array as keys and the
* values from the values array as the corresponding values. Returns false if the
* number of elements for each array isn't equal or if the arrays are empty.
*/
function array_combine($keys, $values)
{
$keys = array_values($keys);
$values = array_values($values);
$n = sizeof($keys);
$m = sizeof($values);
if (!$n || !$m || ($n != $m))
{
return false;
}
$combined = array();
for ($i = 0; $i < $n; $i++)
{
$combined[$keys[$i]] = $values[$i];
}
return $combined;
}
}
if (!function_exists('str_split'))
{
/**
* A wrapper for the PHP5 function str_split()
* @param array $string contains the string to be converted
* @param array $split_length contains the length of each chunk
*
* @return Converts a string to an array. If the optional split_length parameter is specified,
* the returned array will be broken down into chunks with each being split_length in length,
* otherwise each chunk will be one character in length. FALSE is returned if split_length is
* less than 1. If the split_length length exceeds the length of string, the entire string is
* returned as the first (and only) array element.
*/
function str_split($string, $split_length = 1)
{
if ($split_length < 1)
{
return false;
}
else if ($split_length >= strlen($string))
{
return array($string);
}
else
{
preg_match_all('#.{1,' . $split_length . '}#s', $string, $matches);
return $matches[0];
}
}
}
if (!function_exists('stripos'))
{
/**
* A wrapper for the PHP5 function stripos
* Find position of first occurrence of a case-insensitive string
*
* @param string $haystack is the string to search in
* @param string $needle is the string to search for
*
* @return mixed Returns the numeric position of the first occurrence of needle in the haystack string. Unlike strpos(), stripos() is case-insensitive.
* Note that the needle may be a string of one or more characters.
* If needle is not found, stripos() will return boolean FALSE.
*/
function stripos($haystack, $needle)
{
if (preg_match('#' . preg_quote($needle, '#') . '#i', $haystack, $m))
{
return strpos($haystack, $m[0]);
}
return false;
}
}
/**
* Checks if a path ($path) is absolute or relative
*
* @param string $path Path to check absoluteness of
* @return boolean
*/
function is_absolute($path)
{
return (isset($path[0]) && $path[0] == '/' || preg_match('#^[a-z]:[/\\\]#i', $path)) ? true : false;
}
/**
* @author Chris Smith <[email protected]>
* @copyright 2006 Project Minerva Team
* @param string $path The path which we should attempt to resolve.
* @return mixed
*/
function phpbb_own_realpath($path)
{
// Now to perform funky shizzle
// Switch to use UNIX slashes
$path = str_replace(DIRECTORY_SEPARATOR, '/', $path);
$path_prefix = '';
// Determine what sort of path we have
if (is_absolute($path))
{
$absolute = true;
if ($path[0] == '/')
{
// Absolute path, *NIX style
$path_prefix = '';
}
else
{
// Absolute path, Windows style
// Remove the drive letter and colon
$path_prefix = $path[0] . ':';
$path = substr($path, 2);
}
}
else
{
// Relative Path
// Prepend the current working directory
if (function_exists('getcwd'))
{
// This is the best method, hopefully it is enabled!
$path = str_replace(DIRECTORY_SEPARATOR, '/', getcwd()) . '/' . $path;
$absolute = true;
if (preg_match('#^[a-z]:#i', $path))
{
$path_prefix = $path[0] . ':';
$path = substr($path, 2);
}
else
{
$path_prefix = '';
}
}
else if (isset($_SERVER['SCRIPT_FILENAME']) && !empty($_SERVER['SCRIPT_FILENAME']))
{
// Warning: If chdir() has been used this will lie!
// Warning: This has some problems sometime (CLI can create them easily)
$path = str_replace(DIRECTORY_SEPARATOR, '/', dirname($_SERVER['SCRIPT_FILENAME'])) . '/' . $path;
$absolute = true;
$path_prefix = '';
}
else
{
// We have no way of getting the absolute path, just run on using relative ones.
$absolute = false;
$path_prefix = '.';
}
}
// Remove any repeated slashes
$path = preg_replace('#/{2,}#', '/', $path);
// Remove the slashes from the start and end of the path
$path = trim($path, '/');
// Break the string into little bits for us to nibble on
$bits = explode('/', $path);
// Remove any . in the path, renumber array for the loop below
$bits = array_values(array_diff($bits, array('.')));
// Lets get looping, run over and resolve any .. (up directory)
for ($i = 0, $max = sizeof($bits); $i < $max; $i++)
{
// @todo Optimise
if ($bits[$i] == '..' )
{
if (isset($bits[$i - 1]))
{
if ($bits[$i - 1] != '..')
{
// We found a .. and we are able to traverse upwards, lets do it!
unset($bits[$i]);
unset($bits[$i - 1]);
$i -= 2;
$max -= 2;
$bits = array_values($bits);
}
}
else if ($absolute) // ie. !isset($bits[$i - 1]) && $absolute
{
// We have an absolute path trying to descend above the root of the filesystem
// ... Error!
return false;
}
}
}
// Prepend the path prefix
array_unshift($bits, $path_prefix);
$resolved = '';
$max = sizeof($bits) - 1;
// Check if we are able to resolve symlinks, Windows cannot.
$symlink_resolve = (function_exists('readlink')) ? true : false;
foreach ($bits as $i => $bit)
{
if (@is_dir("$resolved/$bit") || ($i == $max && @is_file("$resolved/$bit")))
{
// Path Exists
if ($symlink_resolve && is_link("$resolved/$bit") && ($link = readlink("$resolved/$bit")))
{
// Resolved a symlink.
$resolved = $link . (($i == $max) ? '' : '/');
continue;
}
}
else
{
// Something doesn't exist here!
// This is correct realpath() behaviour but sadly open_basedir and safe_mode make this problematic
// return false;
}
$resolved .= $bit . (($i == $max) ? '' : '/');
}
// @todo If the file exists fine and open_basedir only has one path we should be able to prepend it
// because we must be inside that basedir, the question is where...
// @internal The slash in is_dir() gets around an open_basedir restriction
if (!@file_exists($resolved) || (!@is_dir($resolved . '/') && !is_file($resolved)))
{
return false;
}
// Put the slashes back to the native operating systems slashes
$resolved = str_replace('/', DIRECTORY_SEPARATOR, $resolved);
// Check for DIRECTORY_SEPARATOR at the end (and remove it!)
if (substr($resolved, -1) == DIRECTORY_SEPARATOR)
{
return substr($resolved, 0, -1);
}
return $resolved; // We got here, in the end!
}
if (!function_exists('realpath'))
{
/**
* A wrapper for realpath
* @ignore
*/
function phpbb_realpath($path)
{
return phpbb_own_realpath($path);
}
}
else
{
/**
* A wrapper for realpath
*/
function phpbb_realpath($path)
{
$realpath = realpath($path);
// Strangely there are provider not disabling realpath but returning strange values. :o
// We at least try to cope with them.
if ($realpath === $path || $realpath === false)
{
return phpbb_own_realpath($path);
}
// Check for DIRECTORY_SEPARATOR at the end (and remove it!)
if (substr($realpath, -1) == DIRECTORY_SEPARATOR)
{
$realpath = substr($realpath, 0, -1);
}
return $realpath;
}
}
/**
* Eliminates useless . and .. components from specified path.
*
* @param string $path Path to clean
* @return string Cleaned path
*/
function phpbb_clean_path($path)
{
$exploded = explode('/', $path);
$filtered = array();
foreach ($exploded as $part)
{
if ($part === '.' && !empty($filtered))
{
continue;
}
if ($part === '..' && !empty($filtered) && $filtered[sizeof($filtered) - 1] !== '..')
{
array_pop($filtered);
}
else
{
$filtered[] = $part;
}
}
$path = implode('/', $filtered);
return $path;
}
if (!function_exists('htmlspecialchars_decode'))
{
/**
* A wrapper for htmlspecialchars_decode
* @ignore
*/
function htmlspecialchars_decode($string, $quote_style = ENT_COMPAT)
{
return strtr($string, array_flip(get_html_translation_table(HTML_SPECIALCHARS, $quote_style)));
}
}
// functions used for building option fields
/**
* Pick a language, any language ...
*/
function language_select($default = '')
{
global $db;
$sql = 'SELECT lang_iso, lang_local_name
FROM ' . LANG_TABLE . '
ORDER BY lang_english_name';
$result = $db->sql_query($sql);
$lang_options = '';
while ($row = $db->sql_fetchrow($result))
{
$selected = ($row['lang_iso'] == $default) ? ' selected="selected"' : '';
$lang_options .= '<option value="' . $row['lang_iso'] . '"' . $selected . '>' . $row['lang_local_name'] . '</option>';
}
$db->sql_freeresult($result);
return $lang_options;
}
/**
* Pick a template/theme combo,
*/
function style_select($default = '', $all = false)
{
global $db;
$sql_where = (!$all) ? 'WHERE style_active = 1 ' : '';
$sql = 'SELECT style_id, style_name
FROM ' . STYLES_TABLE . "
$sql_where
ORDER BY style_name";
$result = $db->sql_query($sql);
$style_options = '';
while ($row = $db->sql_fetchrow($result))
{
$selected = ($row['style_id'] == $default) ? ' selected="selected"' : '';
$style_options .= '<option value="' . $row['style_id'] . '"' . $selected . '>' . $row['style_name'] . '</option>';
}
$db->sql_freeresult($result);
return $style_options;
}
/**
* Pick a timezone
*/
function tz_select($default = '', $truncate = false)
{
global $user;
$tz_select = '';
foreach ($user->lang['tz_zones'] as $offset => $zone)
{
if ($truncate)
{
$zone_trunc = truncate_string($zone, 50, 255, false, '...');
}
else
{
$zone_trunc = $zone;
}
if (is_numeric($offset))
{
$selected = ($offset == $default) ? ' selected="selected"' : '';
$tz_select .= '<option title="' . $zone . '" value="' . $offset . '"' . $selected . '>' . $zone_trunc . '</option>';
}
}
return $tz_select;
}
// Functions handling topic/post tracking/marking
/**
* Marks a topic/forum as read
* Marks a topic as posted to
*
* @param int $user_id can only be used with $mode == 'post'
*/
function markread($mode, $forum_id = false, $topic_id = false, $post_time = 0, $user_id = 0)
{
global $db, $user, $config;
if ($mode == 'all')
{
if ($forum_id === false || !sizeof($forum_id))
{
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
// Mark all forums read (index page)
$db->sql_query('DELETE FROM ' . TOPICS_TRACK_TABLE . " WHERE user_id = {$user->data['user_id']}");
$db->sql_query('DELETE FROM ' . FORUMS_TRACK_TABLE . " WHERE user_id = {$user->data['user_id']}");
$db->sql_query('UPDATE ' . USERS_TABLE . ' SET user_lastmark = ' . time() . " WHERE user_id = {$user->data['user_id']}");
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
$tracking_topics = (isset($_COOKIE[$config['cookie_name'] . '_track'])) ? ((STRIP) ? stripslashes($_COOKIE[$config['cookie_name'] . '_track']) : $_COOKIE[$config['cookie_name'] . '_track']) : '';
$tracking_topics = ($tracking_topics) ? tracking_unserialize($tracking_topics) : array();
unset($tracking_topics['tf']);
unset($tracking_topics['t']);
unset($tracking_topics['f']);
$tracking_topics['l'] = base_convert(time() - $config['board_startdate'], 10, 36);
$user->set_cookie('track', tracking_serialize($tracking_topics), time() + 31536000);
$_COOKIE[$config['cookie_name'] . '_track'] = (STRIP) ? addslashes(tracking_serialize($tracking_topics)) : tracking_serialize($tracking_topics);
unset($tracking_topics);
if ($user->data['is_registered'])
{
$db->sql_query('UPDATE ' . USERS_TABLE . ' SET user_lastmark = ' . time() . " WHERE user_id = {$user->data['user_id']}");
}
}
}
return;
}
else if ($mode == 'topics')
{
// Mark all topics in forums read
if (!is_array($forum_id))
{
$forum_id = array($forum_id);
}
// Add 0 to forums array to mark global announcements correctly
// $forum_id[] = 0;
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
$sql = 'DELETE FROM ' . TOPICS_TRACK_TABLE . "
WHERE user_id = {$user->data['user_id']}
AND " . $db->sql_in_set('forum_id', $forum_id);
$db->sql_query($sql);
$sql = 'SELECT forum_id
FROM ' . FORUMS_TRACK_TABLE . "
WHERE user_id = {$user->data['user_id']}
AND " . $db->sql_in_set('forum_id', $forum_id);
$result = $db->sql_query($sql);
$sql_update = array();
while ($row = $db->sql_fetchrow($result))
{
$sql_update[] = (int) $row['forum_id'];
}
$db->sql_freeresult($result);
if (sizeof($sql_update))
{
$sql = 'UPDATE ' . FORUMS_TRACK_TABLE . '
SET mark_time = ' . time() . "
WHERE user_id = {$user->data['user_id']}
AND " . $db->sql_in_set('forum_id', $sql_update);
$db->sql_query($sql);
}
if ($sql_insert = array_diff($forum_id, $sql_update))
{
$sql_ary = array();
foreach ($sql_insert as $f_id)
{
$sql_ary[] = array(
'user_id' => (int) $user->data['user_id'],
'forum_id' => (int) $f_id,
'mark_time' => time()
);
}
$db->sql_multi_insert(FORUMS_TRACK_TABLE, $sql_ary);
}
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
$tracking = (isset($_COOKIE[$config['cookie_name'] . '_track'])) ? ((STRIP) ? stripslashes($_COOKIE[$config['cookie_name'] . '_track']) : $_COOKIE[$config['cookie_name'] . '_track']) : '';
$tracking = ($tracking) ? tracking_unserialize($tracking) : array();
foreach ($forum_id as $f_id)
{
$topic_ids36 = (isset($tracking['tf'][$f_id])) ? $tracking['tf'][$f_id] : array();
if (isset($tracking['tf'][$f_id]))
{
unset($tracking['tf'][$f_id]);
}
foreach ($topic_ids36 as $topic_id36)
{
unset($tracking['t'][$topic_id36]);
}
if (isset($tracking['f'][$f_id]))
{
unset($tracking['f'][$f_id]);
}
$tracking['f'][$f_id] = base_convert(time() - $config['board_startdate'], 10, 36);
}
if (isset($tracking['tf']) && empty($tracking['tf']))
{
unset($tracking['tf']);
}
$user->set_cookie('track', tracking_serialize($tracking), time() + 31536000);
$_COOKIE[$config['cookie_name'] . '_track'] = (STRIP) ? addslashes(tracking_serialize($tracking)) : tracking_serialize($tracking);
unset($tracking);
}
return;
}
else if ($mode == 'topic')
{
if ($topic_id === false || $forum_id === false)
{
return;
}
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
$sql = 'UPDATE ' . TOPICS_TRACK_TABLE . '
SET mark_time = ' . (($post_time) ? $post_time : time()) . "
WHERE user_id = {$user->data['user_id']}
AND topic_id = $topic_id";
$db->sql_query($sql);
// insert row
if (!$db->sql_affectedrows())
{
$db->sql_return_on_error(true);
$sql_ary = array(
'user_id' => (int) $user->data['user_id'],
'topic_id' => (int) $topic_id,
'forum_id' => (int) $forum_id,
'mark_time' => ($post_time) ? (int) $post_time : time(),
);
$db->sql_query('INSERT INTO ' . TOPICS_TRACK_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary));
$db->sql_return_on_error(false);
}
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
$tracking = (isset($_COOKIE[$config['cookie_name'] . '_track'])) ? ((STRIP) ? stripslashes($_COOKIE[$config['cookie_name'] . '_track']) : $_COOKIE[$config['cookie_name'] . '_track']) : '';
$tracking = ($tracking) ? tracking_unserialize($tracking) : array();
$topic_id36 = base_convert($topic_id, 10, 36);
if (!isset($tracking['t'][$topic_id36]))
{
$tracking['tf'][$forum_id][$topic_id36] = true;
}
$post_time = ($post_time) ? $post_time : time();
$tracking['t'][$topic_id36] = base_convert($post_time - $config['board_startdate'], 10, 36);
// If the cookie grows larger than 10000 characters we will remove the smallest value
// This can result in old topics being unread - but most of the time it should be accurate...
if (isset($_COOKIE[$config['cookie_name'] . '_track']) && strlen($_COOKIE[$config['cookie_name'] . '_track']) > 10000)
{
//echo 'Cookie grown too large' . print_r($tracking, true);
// We get the ten most minimum stored time offsets and its associated topic ids
$time_keys = array();
for ($i = 0; $i < 10 && sizeof($tracking['t']); $i++)
{
$min_value = min($tracking['t']);
$m_tkey = array_search($min_value, $tracking['t']);
unset($tracking['t'][$m_tkey]);
$time_keys[$m_tkey] = $min_value;
}
// Now remove the topic ids from the array...
foreach ($tracking['tf'] as $f_id => $topic_id_ary)
{
foreach ($time_keys as $m_tkey => $min_value)
{
if (isset($topic_id_ary[$m_tkey]))
{
$tracking['f'][$f_id] = $min_value;
unset($tracking['tf'][$f_id][$m_tkey]);
}
}
}
if ($user->data['is_registered'])
{
$user->data['user_lastmark'] = intval(base_convert(max($time_keys) + $config['board_startdate'], 36, 10));
$db->sql_query('UPDATE ' . USERS_TABLE . ' SET user_lastmark = ' . $user->data['user_lastmark'] . " WHERE user_id = {$user->data['user_id']}");
}
else
{
$tracking['l'] = max($time_keys);
}
}
$user->set_cookie('track', tracking_serialize($tracking), time() + 31536000);
$_COOKIE[$config['cookie_name'] . '_track'] = (STRIP) ? addslashes(tracking_serialize($tracking)) : tracking_serialize($tracking);
}
return;
}
else if ($mode == 'post')
{
if ($topic_id === false)
{
return;
}
$use_user_id = (!$user_id) ? $user->data['user_id'] : $user_id;
if ($config['load_db_track'] && $use_user_id != ANONYMOUS)
{
$db->sql_return_on_error(true);
$sql_ary = array(
'user_id' => (int) $use_user_id,
'topic_id' => (int) $topic_id,
'topic_posted' => 1
);
$db->sql_query('INSERT INTO ' . TOPICS_POSTED_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary));
$db->sql_return_on_error(false);
}
return;
}
}
/**
* Get topic tracking info by using already fetched info
*/
function get_topic_tracking($forum_id, $topic_ids, &$rowset, $forum_mark_time, $global_announce_list = false)
{
global $config, $user;
$last_read = array();
if (!is_array($topic_ids))
{
$topic_ids = array($topic_ids);
}
foreach ($topic_ids as $topic_id)
{
if (!empty($rowset[$topic_id]['mark_time']))
{
$last_read[$topic_id] = $rowset[$topic_id]['mark_time'];
}
}
$topic_ids = array_diff($topic_ids, array_keys($last_read));
if (sizeof($topic_ids))
{
$mark_time = array();
// Get global announcement info
if ($global_announce_list && sizeof($global_announce_list))
{
if (!isset($forum_mark_time[0]))
{
global $db;
$sql = 'SELECT mark_time
FROM ' . FORUMS_TRACK_TABLE . "
WHERE user_id = {$user->data['user_id']}
AND forum_id = 0";
$result = $db->sql_query($sql);
$row = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
if ($row)
{
$mark_time[0] = $row['mark_time'];
}
}
else
{
if ($forum_mark_time[0] !== false)
{
$mark_time[0] = $forum_mark_time[0];
}
}
}
if (!empty($forum_mark_time[$forum_id]) && $forum_mark_time[$forum_id] !== false)
{
$mark_time[$forum_id] = $forum_mark_time[$forum_id];
}
$user_lastmark = (isset($mark_time[$forum_id])) ? $mark_time[$forum_id] : $user->data['user_lastmark'];
foreach ($topic_ids as $topic_id)
{
if ($global_announce_list && isset($global_announce_list[$topic_id]))
{
$last_read[$topic_id] = (isset($mark_time[0])) ? $mark_time[0] : $user_lastmark;
}
else
{
$last_read[$topic_id] = $user_lastmark;
}
}
}
return $last_read;
}
/**
* Get topic tracking info from db (for cookie based tracking only this function is used)
*/
function get_complete_topic_tracking($forum_id, $topic_ids, $global_announce_list = false)
{
global $config, $user;
$last_read = array();
if (!is_array($topic_ids))
{
$topic_ids = array($topic_ids);
}
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
global $db;
$sql = 'SELECT topic_id, mark_time
FROM ' . TOPICS_TRACK_TABLE . "
WHERE user_id = {$user->data['user_id']}
AND " . $db->sql_in_set('topic_id', $topic_ids);
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$last_read[$row['topic_id']] = $row['mark_time'];
}
$db->sql_freeresult($result);
$topic_ids = array_diff($topic_ids, array_keys($last_read));
if (sizeof($topic_ids))
{
$sql = 'SELECT forum_id, mark_time
FROM ' . FORUMS_TRACK_TABLE . "
WHERE user_id = {$user->data['user_id']}
AND forum_id " .
(($global_announce_list && sizeof($global_announce_list)) ? "IN (0, $forum_id)" : "= $forum_id");
$result = $db->sql_query($sql);
$mark_time = array();
while ($row = $db->sql_fetchrow($result))
{
$mark_time[$row['forum_id']] = $row['mark_time'];
}
$db->sql_freeresult($result);
$user_lastmark = (isset($mark_time[$forum_id])) ? $mark_time[$forum_id] : $user->data['user_lastmark'];
foreach ($topic_ids as $topic_id)
{
if ($global_announce_list && isset($global_announce_list[$topic_id]))
{
$last_read[$topic_id] = (isset($mark_time[0])) ? $mark_time[0] : $user_lastmark;
}
else
{
$last_read[$topic_id] = $user_lastmark;
}
}
}
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
global $tracking_topics;
if (!isset($tracking_topics) || !sizeof($tracking_topics))
{
$tracking_topics = (isset($_COOKIE[$config['cookie_name'] . '_track'])) ? ((STRIP) ? stripslashes($_COOKIE[$config['cookie_name'] . '_track']) : $_COOKIE[$config['cookie_name'] . '_track']) : '';
$tracking_topics = ($tracking_topics) ? tracking_unserialize($tracking_topics) : array();
}
if (!$user->data['is_registered'])
{
$user_lastmark = (isset($tracking_topics['l'])) ? base_convert($tracking_topics['l'], 36, 10) + $config['board_startdate'] : 0;
}
else
{
$user_lastmark = $user->data['user_lastmark'];
}
foreach ($topic_ids as $topic_id)
{
$topic_id36 = base_convert($topic_id, 10, 36);
if (isset($tracking_topics['t'][$topic_id36]))
{
$last_read[$topic_id] = base_convert($tracking_topics['t'][$topic_id36], 36, 10) + $config['board_startdate'];
}
}
$topic_ids = array_diff($topic_ids, array_keys($last_read));
if (sizeof($topic_ids))
{
$mark_time = array();
if ($global_announce_list && sizeof($global_announce_list))
{
if (isset($tracking_topics['f'][0]))
{
$mark_time[0] = base_convert($tracking_topics['f'][0], 36, 10) + $config['board_startdate'];
}
}
if (isset($tracking_topics['f'][$forum_id]))
{
$mark_time[$forum_id] = base_convert($tracking_topics['f'][$forum_id], 36, 10) + $config['board_startdate'];
}
$user_lastmark = (isset($mark_time[$forum_id])) ? $mark_time[$forum_id] : $user_lastmark;
foreach ($topic_ids as $topic_id)
{
if ($global_announce_list && isset($global_announce_list[$topic_id]))
{
$last_read[$topic_id] = (isset($mark_time[0])) ? $mark_time[0] : $user_lastmark;
}
else
{
$last_read[$topic_id] = $user_lastmark;
}
}
}
}
return $last_read;
}
/**
* Get list of unread topics
*
* @param int $user_id User ID (or false for current user)
* @param string $sql_extra Extra WHERE SQL statement
* @param string $sql_sort ORDER BY SQL sorting statement
* @param string $sql_limit Limits the size of unread topics list, 0 for unlimited query
* @param string $sql_limit_offset Sets the offset of the first row to search, 0 to search from the start
*
* @return array[int][int] Topic ids as keys, mark_time of topic as value
*/
function get_unread_topics($user_id = false, $sql_extra = '', $sql_sort = '', $sql_limit = 1001, $sql_limit_offset = 0)
{
global $config, $db, $user;
$user_id = ($user_id === false) ? (int) $user->data['user_id'] : (int) $user_id;
// Data array we're going to return
$unread_topics = array();
if (empty($sql_sort))
{
$sql_sort = 'ORDER BY t.topic_last_post_time DESC';
}
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
// Get list of the unread topics
$last_mark = (int) $user->data['user_lastmark'];
$sql_array = array(
'SELECT' => 't.topic_id, t.topic_last_post_time, tt.mark_time as topic_mark_time, ft.mark_time as forum_mark_time',
'FROM' => array(TOPICS_TABLE => 't'),
'LEFT_JOIN' => array(
array(
'FROM' => array(TOPICS_TRACK_TABLE => 'tt'),
'ON' => "tt.user_id = $user_id AND t.topic_id = tt.topic_id",
),
array(
'FROM' => array(FORUMS_TRACK_TABLE => 'ft'),
'ON' => "ft.user_id = $user_id AND t.forum_id = ft.forum_id",
),
),
'WHERE' => "
t.topic_last_post_time > $last_mark AND
(
(tt.mark_time IS NOT NULL AND t.topic_last_post_time > tt.mark_time) OR
(tt.mark_time IS NULL AND ft.mark_time IS NOT NULL AND t.topic_last_post_time > ft.mark_time) OR
(tt.mark_time IS NULL AND ft.mark_time IS NULL)
)
$sql_extra
$sql_sort",
);
$sql = $db->sql_build_query('SELECT', $sql_array);
$result = $db->sql_query_limit($sql, $sql_limit, $sql_limit_offset);
while ($row = $db->sql_fetchrow($result))
{
$topic_id = (int) $row['topic_id'];
$unread_topics[$topic_id] = ($row['topic_mark_time']) ? (int) $row['topic_mark_time'] : (($row['forum_mark_time']) ? (int) $row['forum_mark_time'] : $last_mark);
}
$db->sql_freeresult($result);
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
global $tracking_topics;
if (empty($tracking_topics))
{
$tracking_topics = request_var($config['cookie_name'] . '_track', '', false, true);
$tracking_topics = ($tracking_topics) ? tracking_unserialize($tracking_topics) : array();
}
if (!$user->data['is_registered'])
{
$user_lastmark = (isset($tracking_topics['l'])) ? base_convert($tracking_topics['l'], 36, 10) + $config['board_startdate'] : 0;
}
else
{
$user_lastmark = (int) $user->data['user_lastmark'];
}
$sql = 'SELECT t.topic_id, t.forum_id, t.topic_last_post_time
FROM ' . TOPICS_TABLE . ' t
WHERE t.topic_last_post_time > ' . $user_lastmark . "
$sql_extra
$sql_sort";
$result = $db->sql_query_limit($sql, $sql_limit, $sql_limit_offset);
while ($row = $db->sql_fetchrow($result))
{
$forum_id = (int) $row['forum_id'];
$topic_id = (int) $row['topic_id'];
$topic_id36 = base_convert($topic_id, 10, 36);
if (isset($tracking_topics['t'][$topic_id36]))
{
$last_read = base_convert($tracking_topics['t'][$topic_id36], 36, 10) + $config['board_startdate'];
if ($row['topic_last_post_time'] > $last_read)
{
$unread_topics[$topic_id] = $last_read;
}
}
else if (isset($tracking_topics['f'][$forum_id]))
{
$mark_time = base_convert($tracking_topics['f'][$forum_id], 36, 10) + $config['board_startdate'];
if ($row['topic_last_post_time'] > $mark_time)
{
$unread_topics[$topic_id] = $mark_time;
}
}
else
{
$unread_topics[$topic_id] = $user_lastmark;
}
}
$db->sql_freeresult($result);
}
return $unread_topics;
}
/**
* Check for read forums and update topic tracking info accordingly
*
* @param int $forum_id the forum id to check
* @param int $forum_last_post_time the forums last post time
* @param int $f_mark_time the forums last mark time if user is registered and load_db_lastread enabled
* @param int $mark_time_forum false if the mark time needs to be obtained, else the last users forum mark time
*
* @return true if complete forum got marked read, else false.
*/
function update_forum_tracking_info($forum_id, $forum_last_post_time, $f_mark_time = false, $mark_time_forum = false)
{
global $db, $tracking_topics, $user, $config, $auth;
// Determine the users last forum mark time if not given.
if ($mark_time_forum === false)
{
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
$mark_time_forum = (!empty($f_mark_time)) ? $f_mark_time : $user->data['user_lastmark'];
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
$tracking_topics = (isset($_COOKIE[$config['cookie_name'] . '_track'])) ? ((STRIP) ? stripslashes($_COOKIE[$config['cookie_name'] . '_track']) : $_COOKIE[$config['cookie_name'] . '_track']) : '';
$tracking_topics = ($tracking_topics) ? tracking_unserialize($tracking_topics) : array();
if (!$user->data['is_registered'])
{
$user->data['user_lastmark'] = (isset($tracking_topics['l'])) ? (int) (base_convert($tracking_topics['l'], 36, 10) + $config['board_startdate']) : 0;
}
$mark_time_forum = (isset($tracking_topics['f'][$forum_id])) ? (int) (base_convert($tracking_topics['f'][$forum_id], 36, 10) + $config['board_startdate']) : $user->data['user_lastmark'];
}
}
// Handle update of unapproved topics info.
// Only update for moderators having m_approve permission for the forum.
$sql_update_unapproved = ($auth->acl_get('m_approve', $forum_id)) ? '': 'AND t.topic_approved = 1';
// Check the forum for any left unread topics.
// If there are none, we mark the forum as read.
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
if ($mark_time_forum >= $forum_last_post_time)
{
// We do not need to mark read, this happened before. Therefore setting this to true
$row = true;
}
else
{
$sql = 'SELECT t.forum_id
FROM ' . TOPICS_TABLE . ' t
LEFT JOIN ' . TOPICS_TRACK_TABLE . ' tt
ON (tt.topic_id = t.topic_id
AND tt.user_id = ' . $user->data['user_id'] . ')
WHERE t.forum_id = ' . $forum_id . '
AND t.topic_last_post_time > ' . $mark_time_forum . '
AND t.topic_moved_id = 0 ' .
$sql_update_unapproved . '
AND (tt.topic_id IS NULL
OR tt.mark_time < t.topic_last_post_time)';
$result = $db->sql_query_limit($sql, 1);
$row = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
}
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
// Get information from cookie
$row = false;
if (!isset($tracking_topics['tf'][$forum_id]))
{
// We do not need to mark read, this happened before. Therefore setting this to true
$row = true;
}
else
{
$sql = 'SELECT t.topic_id
FROM ' . TOPICS_TABLE . ' t
WHERE t.forum_id = ' . $forum_id . '
AND t.topic_last_post_time > ' . $mark_time_forum . '
AND t.topic_moved_id = 0 ' .
$sql_update_unapproved;
$result = $db->sql_query($sql);
$check_forum = $tracking_topics['tf'][$forum_id];
$unread = false;
while ($row = $db->sql_fetchrow($result))
{
if (!isset($check_forum[base_convert($row['topic_id'], 10, 36)]))
{
$unread = true;
break;
}
}
$db->sql_freeresult($result);
$row = $unread;
}
}
else
{
$row = true;
}
if (!$row)
{
markread('topics', $forum_id);
return true;
}
return false;
}
/**
* Transform an array into a serialized format
*/
function tracking_serialize($input)
{
$out = '';
foreach ($input as $key => $value)
{
if (is_array($value))
{
$out .= $key . ':(' . tracking_serialize($value) . ');';
}
else
{
$out .= $key . ':' . $value . ';';
}
}
return $out;
}
/**
* Transform a serialized array into an actual array
*/
function tracking_unserialize($string, $max_depth = 3)
{
$n = strlen($string);
if ($n > 10010)
{
die('Invalid data supplied');
}
$data = $stack = array();
$key = '';
$mode = 0;
$level = &$data;
for ($i = 0; $i < $n; ++$i)
{
switch ($mode)
{
case 0:
switch ($string[$i])
{
case ':':
$level[$key] = 0;
$mode = 1;
break;
case ')':
unset($level);
$level = array_pop($stack);
$mode = 3;
break;
default:
$key .= $string[$i];
}
break;
case 1:
switch ($string[$i])
{
case '(':
if (sizeof($stack) >= $max_depth)
{
die('Invalid data supplied');
}
$stack[] = &$level;
$level[$key] = array();
$level = &$level[$key];
$key = '';
$mode = 0;
break;
default:
$level[$key] = $string[$i];
$mode = 2;
break;
}
break;
case 2:
switch ($string[$i])
{
case ')':
unset($level);
$level = array_pop($stack);
$mode = 3;
break;
case ';':
$key = '';
$mode = 0;
break;
default:
$level[$key] .= $string[$i];
break;
}
break;
case 3:
switch ($string[$i])
{
case ')':
unset($level);
$level = array_pop($stack);
break;
case ';':
$key = '';
$mode = 0;
break;
default:
die('Invalid data supplied');
break;
}
break;
}
}
if (sizeof($stack) != 0 || ($mode != 0 && $mode != 3))
{
die('Invalid data supplied');
}
return $level;
}
// Pagination functions
/**
* Pagination routine, generates page number sequence
* tpl_prefix is for using different pagination blocks at one page
*/
function generate_pagination($base_url, $num_items, $per_page, $start_item, $add_prevnext_text = false, $tpl_prefix = '')
{
global $template, $user;
// Make sure $per_page is a valid value
$per_page = ($per_page <= 0) ? 1 : $per_page;
$seperator = '<span class="page-sep">' . $user->lang['COMMA_SEPARATOR'] . '</span>';
$total_pages = ceil($num_items / $per_page);
if ($total_pages == 1 || !$num_items)
{
return false;
}
$on_page = floor($start_item / $per_page) + 1;
$url_delim = (strpos($base_url, '?') === false) ? '?' : ((strpos($base_url, '?') === strlen($base_url) - 1) ? '' : '&amp;');
$page_string = ($on_page == 1) ? '<strong>1</strong>' : '<a href="' . $base_url . '">1</a>';
if ($total_pages > 5)
{
$start_cnt = min(max(1, $on_page - 4), $total_pages - 5);
$end_cnt = max(min($total_pages, $on_page + 4), 6);
$page_string .= ($start_cnt > 1) ? '<span class="page-dots"> ... </span>' : $seperator;
for ($i = $start_cnt + 1; $i < $end_cnt; $i++)
{
$page_string .= ($i == $on_page) ? '<strong>' . $i . '</strong>' : '<a href="' . $base_url . "{$url_delim}start=" . (($i - 1) * $per_page) . '">' . $i . '</a>';
if ($i < $end_cnt - 1)
{
$page_string .= $seperator;
}
}
$page_string .= ($end_cnt < $total_pages) ? '<span class="page-dots"> ... </span>' : $seperator;
}
else
{
$page_string .= $seperator;
for ($i = 2; $i < $total_pages; $i++)
{
$page_string .= ($i == $on_page) ? '<strong>' . $i . '</strong>' : '<a href="' . $base_url . "{$url_delim}start=" . (($i - 1) * $per_page) . '">' . $i . '</a>';
if ($i < $total_pages)
{
$page_string .= $seperator;
}
}
}
$page_string .= ($on_page == $total_pages) ? '<strong>' . $total_pages . '</strong>' : '<a href="' . $base_url . "{$url_delim}start=" . (($total_pages - 1) * $per_page) . '">' . $total_pages . '</a>';
if ($add_prevnext_text)
{
if ($on_page != 1)
{
$page_string = '<a href="' . $base_url . "{$url_delim}start=" . (($on_page - 2) * $per_page) . '">' . $user->lang['PREVIOUS'] . '</a>&nbsp;&nbsp;' . $page_string;
}
if ($on_page != $total_pages)
{
$page_string .= '&nbsp;&nbsp;<a href="' . $base_url . "{$url_delim}start=" . ($on_page * $per_page) . '">' . $user->lang['NEXT'] . '</a>';
}
}
$template->assign_vars(array(
$tpl_prefix . 'BASE_URL' => $base_url,
'A_' . $tpl_prefix . 'BASE_URL' => addslashes($base_url),
$tpl_prefix . 'PER_PAGE' => $per_page,
$tpl_prefix . 'PREVIOUS_PAGE' => ($on_page == 1) ? '' : $base_url . "{$url_delim}start=" . (($on_page - 2) * $per_page),
$tpl_prefix . 'NEXT_PAGE' => ($on_page == $total_pages) ? '' : $base_url . "{$url_delim}start=" . ($on_page * $per_page),
$tpl_prefix . 'TOTAL_PAGES' => $total_pages,
));
return $page_string;
}
/**
* Return current page (pagination)
*/
function on_page($num_items, $per_page, $start)
{
global $template, $user;
// Make sure $per_page is a valid value
$per_page = ($per_page <= 0) ? 1 : $per_page;
$on_page = floor($start / $per_page) + 1;
$template->assign_vars(array(
'ON_PAGE' => $on_page)
);
return sprintf($user->lang['PAGE_OF'], $on_page, max(ceil($num_items / $per_page), 1));
}
// Server functions (building urls, redirecting...)
/**
* Append session id to url.
* This function supports hooks.
*
* @param string $url The url the session id needs to be appended to (can have params)
* @param mixed $params String or array of additional url parameters
* @param bool $is_amp Is url using &amp; (true) or & (false)
* @param string $session_id Possibility to use a custom session id instead of the global one
*
* Examples:
* <code>
* append_sid("{$phpbb_root_path}viewtopic.$phpEx?t=1&amp;f=2");
* append_sid("{$phpbb_root_path}viewtopic.$phpEx", 't=1&amp;f=2');
* append_sid("{$phpbb_root_path}viewtopic.$phpEx", 't=1&f=2', false);
* append_sid("{$phpbb_root_path}viewtopic.$phpEx", array('t' => 1, 'f' => 2));
* </code>
*
*/
function append_sid($url, $params = false, $is_amp = true, $session_id = false)
{
global $_SID, $_EXTRA_URL, $phpbb_hook;
if ($params === '' || (is_array($params) && empty($params)))
{
// Do not append the ? if the param-list is empty anyway.
$params = false;
}
// Developers using the hook function need to globalise the $_SID and $_EXTRA_URL on their own and also handle it appropriately.
// They could mimic most of what is within this function
if (!empty($phpbb_hook) && $phpbb_hook->call_hook(__FUNCTION__, $url, $params, $is_amp, $session_id))
{
if ($phpbb_hook->hook_return(__FUNCTION__))
{
return $phpbb_hook->hook_return_result(__FUNCTION__);
}
}
$params_is_array = is_array($params);
// Get anchor
$anchor = '';
if (strpos($url, '#') !== false)
{
list($url, $anchor) = explode('#', $url, 2);
$anchor = '#' . $anchor;
}
else if (!$params_is_array && strpos($params, '#') !== false)
{
list($params, $anchor) = explode('#', $params, 2);
$anchor = '#' . $anchor;
}
// Handle really simple cases quickly
if ($_SID == '' && $session_id === false && empty($_EXTRA_URL) && !$params_is_array && !$anchor)
{
if ($params === false)
{
return $url;
}
$url_delim = (strpos($url, '?') === false) ? '?' : (($is_amp) ? '&amp;' : '&');
return $url . ($params !== false ? $url_delim. $params : '');
}
// Assign sid if session id is not specified
if ($session_id === false)
{
$session_id = $_SID;
}
$amp_delim = ($is_amp) ? '&amp;' : '&';
$url_delim = (strpos($url, '?') === false) ? '?' : $amp_delim;
// Appending custom url parameter?
$append_url = (!empty($_EXTRA_URL)) ? implode($amp_delim, $_EXTRA_URL) : '';
// Use the short variant if possible ;)
if ($params === false)
{
// Append session id
if (!$session_id)
{
return $url . (($append_url) ? $url_delim . $append_url : '') . $anchor;
}
else
{
return $url . (($append_url) ? $url_delim . $append_url . $amp_delim : $url_delim) . 'sid=' . $session_id . $anchor;
}
}
// Build string if parameters are specified as array
if (is_array($params))
{
$output = array();
foreach ($params as $key => $item)
{
if ($item === NULL)
{
continue;
}
if ($key == '#')
{
$anchor = '#' . $item;
continue;
}
$output[] = $key . '=' . $item;
}
$params = implode($amp_delim, $output);
}
// Append session id and parameters (even if they are empty)
// If parameters are empty, the developer can still append his/her parameters without caring about the delimiter
return $url . (($append_url) ? $url_delim . $append_url . $amp_delim : $url_delim) . $params . ((!$session_id) ? '' : $amp_delim . 'sid=' . $session_id) . $anchor;
}
/**
* Generate board url (example: http://www.example.com/phpBB)
*
* @param bool $without_script_path if set to true the script path gets not appended (example: http://www.example.com)
*
* @return string the generated board url
*/
function generate_board_url($without_script_path = false)
{
global $config, $user;
$server_name = $user->host;
$server_port = (!empty($_SERVER['SERVER_PORT'])) ? (int) $_SERVER['SERVER_PORT'] : (int) getenv('SERVER_PORT');
// Forcing server vars is the only way to specify/override the protocol
if ($config['force_server_vars'] || !$server_name)
{
$server_protocol = ($config['server_protocol']) ? $config['server_protocol'] : (($config['cookie_secure']) ? 'https://' : 'http://');
$server_name = $config['server_name'];
$server_port = (int) $config['server_port'];
$script_path = $config['script_path'];
$url = $server_protocol . $server_name;
$cookie_secure = $config['cookie_secure'];
}
else
{
// Do not rely on cookie_secure, users seem to think that it means a secured cookie instead of an encrypted connection
$cookie_secure = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 1 : 0;
$url = (($cookie_secure) ? 'https://' : 'http://') . $server_name;
$script_path = $user->page['root_script_path'];
}
if ($server_port && (($cookie_secure && $server_port <> 443) || (!$cookie_secure && $server_port <> 80)))
{
// HTTP HOST can carry a port number (we fetch $user->host, but for old versions this may be true)
if (strpos($server_name, ':') === false)
{
$url .= ':' . $server_port;
}
}
if (!$without_script_path)
{
$url .= $script_path;
}
// Strip / from the end
if (substr($url, -1, 1) == '/')
{
$url = substr($url, 0, -1);
}
return $url;
}
/**
* Redirects the user to another page then exits the script nicely
* This function is intended for urls within the board. It's not meant to redirect to cross-domains.
*
* @param string $url The url to redirect to
* @param bool $return If true, do not redirect but return the sanitized URL. Default is no return.
* @param bool $disable_cd_check If true, redirect() will redirect to an external domain. If false, the redirect point to the boards url if it does not match the current domain. Default is false.
*/
function redirect($url, $return = false, $disable_cd_check = false)
{
global $db, $cache, $config, $user, $phpbb_root_path;
$failover_flag = false;
if (empty($user->lang))
{
$user->add_lang('common');
}
if (!$return)
{
garbage_collection();
}
// Make sure no &amp;'s are in, this will break the redirect
$url = str_replace('&amp;', '&', $url);
// Determine which type of redirect we need to handle...
$url_parts = @parse_url($url);
if ($url_parts === false)
{
// Malformed url, redirect to current page...
$url = generate_board_url() . '/' . $user->page['page'];
}
else if (!empty($url_parts['scheme']) && !empty($url_parts['host']))
{
// Attention: only able to redirect within the same domain if $disable_cd_check is false (yourdomain.com -> www.yourdomain.com will not work)
if (!$disable_cd_check && $url_parts['host'] !== $user->host)
{
$url = generate_board_url();
}
}
else if ($url[0] == '/')
{
// Absolute uri, prepend direct url...
$url = generate_board_url(true) . $url;
}
else
{
// Relative uri
$pathinfo = pathinfo($url);
if (!$disable_cd_check && !file_exists($pathinfo['dirname'] . '/'))
{
$url = str_replace('../', '', $url);
$pathinfo = pathinfo($url);
if (!file_exists($pathinfo['dirname'] . '/'))
{
// fallback to "last known user page"
// at least this way we know the user does not leave the phpBB root
$url = generate_board_url() . '/' . $user->page['page'];
$failover_flag = true;
}
}
if (!$failover_flag)
{
// Is the uri pointing to the current directory?
if ($pathinfo['dirname'] == '.')
{
$url = str_replace('./', '', $url);
// Strip / from the beginning
if ($url && substr($url, 0, 1) == '/')
{
$url = substr($url, 1);
}
if ($user->page['page_dir'])
{
$url = generate_board_url() . '/' . $user->page['page_dir'] . '/' . $url;
}
else
{
$url = generate_board_url() . '/' . $url;
}
}
else
{
// Used ./ before, but $phpbb_root_path is working better with urls within another root path
$root_dirs = explode('/', str_replace('\\', '/', phpbb_realpath($phpbb_root_path)));
$page_dirs = explode('/', str_replace('\\', '/', phpbb_realpath($pathinfo['dirname'])));
$intersection = array_intersect_assoc($root_dirs, $page_dirs);
$root_dirs = array_diff_assoc($root_dirs, $intersection);
$page_dirs = array_diff_assoc($page_dirs, $intersection);
$dir = str_repeat('../', sizeof($root_dirs)) . implode('/', $page_dirs);
// Strip / from the end
if ($dir && substr($dir, -1, 1) == '/')
{
$dir = substr($dir, 0, -1);
}
// Strip / from the beginning
if ($dir && substr($dir, 0, 1) == '/')
{
$dir = substr($dir, 1);
}
$url = str_replace($pathinfo['dirname'] . '/', '', $url);
// Strip / from the beginning
if (substr($url, 0, 1) == '/')
{
$url = substr($url, 1);
}
$url = (!empty($dir) ? $dir . '/' : '') . $url;
$url = generate_board_url() . '/' . $url;
}
}
}
// Make sure no linebreaks are there... to prevent http response splitting for PHP < 4.4.2
if (strpos(urldecode($url), "\n") !== false || strpos(urldecode($url), "\r") !== false || strpos($url, ';') !== false)
{
trigger_error('Tried to redirect to potentially insecure url.', E_USER_ERROR);
}
// Now, also check the protocol and for a valid url the last time...
$allowed_protocols = array('http', 'https', 'ftp', 'ftps');
$url_parts = parse_url($url);
if ($url_parts === false || empty($url_parts['scheme']) || !in_array($url_parts['scheme'], $allowed_protocols))
{
trigger_error('Tried to redirect to potentially insecure url.', E_USER_ERROR);
}
if ($return)
{
return $url;
}
// Redirect via an HTML form for PITA webservers
if (@preg_match('#Microsoft|WebSTAR|Xitami#', getenv('SERVER_SOFTWARE')))
{
header('Refresh: 0; URL=' . $url);
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
echo '<html xmlns="http://www.w3.org/1999/xhtml" dir="' . $user->lang['DIRECTION'] . '" lang="' . $user->lang['USER_LANG'] . '" xml:lang="' . $user->lang['USER_LANG'] . '">';
echo '<head>';
echo '<meta http-equiv="content-type" content="text/html; charset=utf-8" />';
echo '<meta http-equiv="refresh" content="0; url=' . str_replace('&', '&amp;', $url) . '" />';
echo '<title>' . $user->lang['REDIRECT'] . '</title>';
echo '</head>';
echo '<body>';
echo '<div style="text-align: center;">' . sprintf($user->lang['URL_REDIRECT'], '<a href="' . str_replace('&', '&amp;', $url) . '">', '</a>') . '</div>';
echo '</body>';
echo '</html>';
exit;
}
// Behave as per HTTP/1.1 spec for others
header('Location: ' . $url);
exit;
}
/**
* Re-Apply session id after page reloads
*/
function reapply_sid($url)
{
global $phpEx, $phpbb_root_path;
if ($url === "index.$phpEx")
{
return append_sid("index.$phpEx");
}
else if ($url === "{$phpbb_root_path}index.$phpEx")
{
return append_sid("{$phpbb_root_path}index.$phpEx");
}
// Remove previously added sid
if (strpos($url, 'sid=') !== false)
{
// All kind of links
$url = preg_replace('/(\?)?(&amp;|&)?sid=[a-z0-9]+/', '', $url);
// if the sid was the first param, make the old second as first ones
$url = preg_replace("/$phpEx(&amp;|&)+?/", "$phpEx?", $url);
}
return append_sid($url);
}
/**
* Returns url from the session/current page with an re-appended SID with optionally stripping vars from the url
*/
function build_url($strip_vars = false)
{
global $user, $phpbb_root_path;
// Append SID
$redirect = append_sid($user->page['page'], false, false);
// Add delimiter if not there...
if (strpos($redirect, '?') === false)
{
$redirect .= '?';
}
// Strip vars...
if ($strip_vars !== false && strpos($redirect, '?') !== false)
{
if (!is_array($strip_vars))
{
$strip_vars = array($strip_vars);
}
$query = $_query = array();
$args = substr($redirect, strpos($redirect, '?') + 1);
$args = ($args) ? explode('&', $args) : array();
$redirect = substr($redirect, 0, strpos($redirect, '?'));
foreach ($args as $argument)
{
$arguments = explode('=', $argument);
$key = $arguments[0];
unset($arguments[0]);
if ($key === '')
{
continue;
}
$query[$key] = implode('=', $arguments);
}
// Strip the vars off
foreach ($strip_vars as $strip)
{
if (isset($query[$strip]))
{
unset($query[$strip]);
}
}
// Glue the remaining parts together... already urlencoded
foreach ($query as $key => $value)
{
$_query[] = $key . '=' . $value;
}
$query = implode('&', $_query);
$redirect .= ($query) ? '?' . $query : '';
}
// We need to be cautious here.
// On some situations, the redirect path is an absolute URL, sometimes a relative path
// For a relative path, let's prefix it with $phpbb_root_path to point to the correct location,
// else we use the URL directly.
$url_parts = @parse_url($redirect);
// URL
if ($url_parts !== false && !empty($url_parts['scheme']) && !empty($url_parts['host']))
{
return str_replace('&', '&amp;', $redirect);
}
return $phpbb_root_path . str_replace('&', '&amp;', $redirect);
}
/**
* Meta refresh assignment
* Adds META template variable with meta http tag.
*
* @param int $time Time in seconds for meta refresh tag
* @param string $url URL to redirect to. The url will go through redirect() first before the template variable is assigned
* @param bool $disable_cd_check If true, meta_refresh() will redirect to an external domain. If false, the redirect point to the boards url if it does not match the current domain. Default is false.
*/
function meta_refresh($time, $url, $disable_cd_check = false)
{
global $template;
$url = redirect($url, true, $disable_cd_check);
$url = str_replace('&', '&amp;', $url);
// For XHTML compatibility we change back & to &amp;
$template->assign_vars(array(
'META' => '<meta http-equiv="refresh" content="' . $time . '; url=' . $url . '" />')
);
return $url;
}
/**
* Outputs correct status line header.
*
* Depending on php sapi one of the two following forms is used:
*
* Status: 404 Not Found
*
* HTTP/1.x 404 Not Found
*
* HTTP version is taken from HTTP_VERSION environment variable,
* and defaults to 1.0.
*
* Sample usage:
*
* send_status_line(404, 'Not Found');
*
* @param int $code HTTP status code
* @param string $message Message for the status code
* @return null
*/
function send_status_line($code, $message)
{
if (substr(strtolower(@php_sapi_name()), 0, 3) === 'cgi')
{
// in theory, we shouldn't need that due to php doing it. Reality offers a differing opinion, though
header("Status: $code $message", true, $code);
}
else
{
if (!empty($_SERVER['SERVER_PROTOCOL']))
{
$version = $_SERVER['SERVER_PROTOCOL'];
}
else
{
$version = 'HTTP/1.0';
}
header("$version $code $message", true, $code);
}
}
//Form validation
/**
* Add a secret hash for use in links/GET requests
* @param string $link_name The name of the link; has to match the name used in check_link_hash, otherwise no restrictions apply
* @return string the hash
*/
function generate_link_hash($link_name)
{
global $user;
if (!isset($user->data["hash_$link_name"]))
{
$user->data["hash_$link_name"] = substr(sha1($user->data['user_form_salt'] . $link_name), 0, 8);
}
return $user->data["hash_$link_name"];
}
/**
* checks a link hash - for GET requests
* @param string $token the submitted token
* @param string $link_name The name of the link
* @return boolean true if all is fine
*/
function check_link_hash($token, $link_name)
{
return $token === generate_link_hash($link_name);
}
/**
* Add a secret token to the form (requires the S_FORM_TOKEN template variable)
* @param string $form_name The name of the form; has to match the name used in check_form_key, otherwise no restrictions apply
*/
function add_form_key($form_name)
{
global $config, $template, $user;
$now = time();
$token_sid = ($user->data['user_id'] == ANONYMOUS && !empty($config['form_token_sid_guests'])) ? $user->session_id : '';
$token = sha1($now . $user->data['user_form_salt'] . $form_name . $token_sid);
$s_fields = build_hidden_fields(array(
'creation_time' => $now,
'form_token' => $token,
));
$template->assign_vars(array(
'S_FORM_TOKEN' => $s_fields,
));
}
/**
* Check the form key. Required for all altering actions not secured by confirm_box
* @param string $form_name The name of the form; has to match the name used in add_form_key, otherwise no restrictions apply
* @param int $timespan The maximum acceptable age for a submitted form in seconds. Defaults to the config setting.
* @param string $return_page The address for the return link
* @param bool $trigger If true, the function will triger an error when encountering an invalid form
*/
function check_form_key($form_name, $timespan = false, $return_page = '', $trigger = false)
{
global $config, $user;
if ($timespan === false)
{
// we enforce a minimum value of half a minute here.
$timespan = ($config['form_token_lifetime'] == -1) ? -1 : max(30, $config['form_token_lifetime']);
}
if (isset($_POST['creation_time']) && isset($_POST['form_token']))
{
$creation_time = abs(request_var('creation_time', 0));
$token = request_var('form_token', '');
$diff = time() - $creation_time;
// If creation_time and the time() now is zero we can assume it was not a human doing this (the check for if ($diff)...
if (defined('DEBUG_TEST') || $diff && ($diff <= $timespan || $timespan === -1))
{
$token_sid = ($user->data['user_id'] == ANONYMOUS && !empty($config['form_token_sid_guests'])) ? $user->session_id : '';
$key = sha1($creation_time . $user->data['user_form_salt'] . $form_name . $token_sid);
if ($key === $token)
{
return true;
}
}
}
if ($trigger)
{
trigger_error($user->lang['FORM_INVALID'] . $return_page);
}
return false;
}
// Message/Login boxes
/**
* Build Confirm box
* @param boolean $check True for checking if confirmed (without any additional parameters) and false for displaying the confirm box
* @param string $title Title/Message used for confirm box.
* message text is _CONFIRM appended to title.
* If title cannot be found in user->lang a default one is displayed
* If title_CONFIRM cannot be found in user->lang the text given is used.
* @param string $hidden Hidden variables
* @param string $html_body Template used for confirm box
* @param string $u_action Custom form action
*/
function confirm_box($check, $title = '', $hidden = '', $html_body = 'confirm_body.html', $u_action = '')
{
global $user, $template, $db;
global $phpEx, $phpbb_root_path;
if (isset($_POST['cancel']))
{
return false;
}
$confirm = false;
if (isset($_POST['confirm']))
{
// language frontier
if ($_POST['confirm'] === $user->lang['YES'])
{
$confirm = true;
}
}
if ($check && $confirm)
{
$user_id = request_var('confirm_uid', 0);
$session_id = request_var('sess', '');
$confirm_key = request_var('confirm_key', '');
if ($user_id != $user->data['user_id'] || $session_id != $user->session_id || !$confirm_key || !$user->data['user_last_confirm_key'] || $confirm_key != $user->data['user_last_confirm_key'])
{
return false;
}
// Reset user_last_confirm_key
$sql = 'UPDATE ' . USERS_TABLE . " SET user_last_confirm_key = ''
WHERE user_id = " . $user->data['user_id'];
$db->sql_query($sql);
return true;
}
else if ($check)
{
return false;
}
$s_hidden_fields = build_hidden_fields(array(
'confirm_uid' => $user->data['user_id'],
'sess' => $user->session_id,
'sid' => $user->session_id,
));
// generate activation key
$confirm_key = gen_rand_string(10);
if (defined('IN_ADMIN') && isset($user->data['session_admin']) && $user->data['session_admin'])
{
adm_page_header((!isset($user->lang[$title])) ? $user->lang['CONFIRM'] : $user->lang[$title]);
}
else
{
page_header(((!isset($user->lang[$title])) ? $user->lang['CONFIRM'] : $user->lang[$title]), false);
}
$template->set_filenames(array(
'body' => $html_body)
);
// If activation key already exist, we better do not re-use the key (something very strange is going on...)
if (request_var('confirm_key', ''))
{
// This should not occur, therefore we cancel the operation to safe the user
return false;
}
// re-add sid / transform & to &amp; for user->page (user->page is always using &)
$use_page = ($u_action) ? $phpbb_root_path . $u_action : $phpbb_root_path . str_replace('&', '&amp;', $user->page['page']);
$u_action = reapply_sid($use_page);
$u_action .= ((strpos($u_action, '?') === false) ? '?' : '&amp;') . 'confirm_key=' . $confirm_key;
$template->assign_vars(array(
'MESSAGE_TITLE' => (!isset($user->lang[$title])) ? $user->lang['CONFIRM'] : $user->lang[$title],
'MESSAGE_TEXT' => (!isset($user->lang[$title . '_CONFIRM'])) ? $title : $user->lang[$title . '_CONFIRM'],
'YES_VALUE' => $user->lang['YES'],
'S_CONFIRM_ACTION' => $u_action,
'S_HIDDEN_FIELDS' => $hidden . $s_hidden_fields)
);
$sql = 'UPDATE ' . USERS_TABLE . " SET user_last_confirm_key = '" . $db->sql_escape($confirm_key) . "'
WHERE user_id = " . $user->data['user_id'];
$db->sql_query($sql);
if (defined('IN_ADMIN') && isset($user->data['session_admin']) && $user->data['session_admin'])
{
adm_page_footer();
}
else
{
page_footer();
}
}
/**
* Generate login box or verify password
*/
function login_box($redirect = '', $l_explain = '', $l_success = '', $admin = false, $s_display = true)
{
global $db, $user, $template, $auth, $phpEx, $phpbb_root_path, $config;
if (!class_exists('phpbb_captcha_factory'))
{
include($phpbb_root_path . 'includes/captcha/captcha_factory.' . $phpEx);
}
$err = '';
// Make sure user->setup() has been called
if (empty($user->lang))
{
$user->setup();
}
// Print out error if user tries to authenticate as an administrator without having the privileges...
if ($admin && !$auth->acl_get('a_'))
{
// Not authd
// anonymous/inactive users are never able to go to the ACP even if they have the relevant permissions
if ($user->data['is_registered'])
{
add_log('admin', 'LOG_ADMIN_AUTH_FAIL');
}
trigger_error('NO_AUTH_ADMIN');
}
if (isset($_POST['login']))
{
// Get credential
if ($admin)
{
$credential = request_var('credential', '');
if (strspn($credential, 'abcdef0123456789') !== strlen($credential) || strlen($credential) != 32)
{
if ($user->data['is_registered'])
{
add_log('admin', 'LOG_ADMIN_AUTH_FAIL');
}
trigger_error('NO_AUTH_ADMIN');
}
$password = request_var('password_' . $credential, '', true);
}
else
{
$password = request_var('password', '', true);
}
$username = request_var('username', '', true);
$autologin = (!empty($_POST['autologin'])) ? true : false;
$viewonline = (!empty($_POST['viewonline'])) ? 0 : 1;
$admin = ($admin) ? 1 : 0;
$viewonline = ($admin) ? $user->data['session_viewonline'] : $viewonline;
// Check if the supplied username is equal to the one stored within the database if re-authenticating
if ($admin && utf8_clean_string($username) != utf8_clean_string($user->data['username']))
{
// We log the attempt to use a different username...
add_log('admin', 'LOG_ADMIN_AUTH_FAIL');
trigger_error('NO_AUTH_ADMIN_USER_DIFFER');
}
// If authentication is successful we redirect user to previous page
$result = $auth->login($username, $password, $autologin, $viewonline, $admin);
// If admin authentication and login, we will log if it was a success or not...
// We also break the operation on the first non-success login - it could be argued that the user already knows
if ($admin)
{
if ($result['status'] == LOGIN_SUCCESS)
{
add_log('admin', 'LOG_ADMIN_AUTH_SUCCESS');
}
else
{
// Only log the failed attempt if a real user tried to.
// anonymous/inactive users are never able to go to the ACP even if they have the relevant permissions
if ($user->data['is_registered'])
{
add_log('admin', 'LOG_ADMIN_AUTH_FAIL');
}
}
}
// The result parameter is always an array, holding the relevant information...
if ($result['status'] == LOGIN_SUCCESS)
{
$redirect = request_var('redirect', "{$phpbb_root_path}index.$phpEx");
$message = ($l_success) ? $l_success : $user->lang['LOGIN_REDIRECT'];
$l_redirect = ($admin) ? $user->lang['PROCEED_TO_ACP'] : (($redirect === "{$phpbb_root_path}index.$phpEx" || $redirect === "index.$phpEx") ? $user->lang['RETURN_INDEX'] : $user->lang['RETURN_PAGE']);
// append/replace SID (may change during the session for AOL users)
$redirect = reapply_sid($redirect);
// Special case... the user is effectively banned, but we allow founders to login
if (defined('IN_CHECK_BAN') && $result['user_row']['user_type'] != USER_FOUNDER)
{
return;
}
$redirect = meta_refresh(3, $redirect);
trigger_error($message . '<br /><br />' . sprintf($l_redirect, '<a href="' . $redirect . '">', '</a>'));
}
// Something failed, determine what...
if ($result['status'] == LOGIN_BREAK)
{
trigger_error($result['error_msg']);
}
// Special cases... determine
switch ($result['status'])
{
case LOGIN_ERROR_ATTEMPTS:
$captcha = phpbb_captcha_factory::get_instance($config['captcha_plugin']);
$captcha->init(CONFIRM_LOGIN);
// $captcha->reset();
$template->assign_vars(array(
'CAPTCHA_TEMPLATE' => $captcha->get_template(),
));
$err = $user->lang[$result['error_msg']];
break;
case LOGIN_ERROR_PASSWORD_CONVERT:
$err = sprintf(
$user->lang[$result['error_msg']],
($config['email_enable']) ? '<a href="' . append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=sendpassword') . '">' : '',
($config['email_enable']) ? '</a>' : '',
($config['board_contact']) ? '<a href="mailto:' . htmlspecialchars($config['board_contact']) . '">' : '',
($config['board_contact']) ? '</a>' : ''
);
break;
// Username, password, etc...
default:
$err = $user->lang[$result['error_msg']];
// Assign admin contact to some error messages
if ($result['error_msg'] == 'LOGIN_ERROR_USERNAME' || $result['error_msg'] == 'LOGIN_ERROR_PASSWORD')
{
$err = (!$config['board_contact']) ? sprintf($user->lang[$result['error_msg']], '', '') : sprintf($user->lang[$result['error_msg']], '<a href="mailto:' . htmlspecialchars($config['board_contact']) . '">', '</a>');
}
break;
}
}
// Assign credential for username/password pair
$credential = ($admin) ? md5(unique_id()) : false;
$s_hidden_fields = array(
'sid' => $user->session_id,
);
if ($redirect)
{
$s_hidden_fields['redirect'] = $redirect;
}
if ($admin)
{
$s_hidden_fields['credential'] = $credential;
}
$s_hidden_fields = build_hidden_fields($s_hidden_fields);
$template->assign_vars(array(
'LOGIN_ERROR' => $err,
'LOGIN_EXPLAIN' => $l_explain,
'U_SEND_PASSWORD' => ($config['email_enable']) ? append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=sendpassword') : '',
'U_RESEND_ACTIVATION' => ($config['require_activation'] == USER_ACTIVATION_SELF && $config['email_enable']) ? append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=resend_act') : '',
'U_TERMS_USE' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=terms'),
'U_PRIVACY' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=privacy'),
'S_DISPLAY_FULL_LOGIN' => ($s_display) ? true : false,
'S_HIDDEN_FIELDS' => $s_hidden_fields,
'S_ADMIN_AUTH' => $admin,
'USERNAME' => ($admin) ? $user->data['username'] : '',
'USERNAME_CREDENTIAL' => 'username',
'PASSWORD_CREDENTIAL' => ($admin) ? 'password_' . $credential : 'password',
));
page_header($user->lang['LOGIN'], false);
$template->set_filenames(array(
'body' => 'login_body.html')
);
make_jumpbox(append_sid("{$phpbb_root_path}viewforum.$phpEx"));
page_footer();
}
/**
* Generate forum login box
*/
function login_forum_box($forum_data)
{
global $db, $config, $user, $template, $phpEx;
$password = request_var('password', '', true);
$sql = 'SELECT forum_id
FROM ' . FORUMS_ACCESS_TABLE . '
WHERE forum_id = ' . $forum_data['forum_id'] . '
AND user_id = ' . $user->data['user_id'] . "
AND session_id = '" . $db->sql_escape($user->session_id) . "'";
$result = $db->sql_query($sql);
$row = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
if ($row)
{
return true;
}
if ($password)
{
// Remove expired authorised sessions
$sql = 'SELECT f.session_id
FROM ' . FORUMS_ACCESS_TABLE . ' f
LEFT JOIN ' . SESSIONS_TABLE . ' s ON (f.session_id = s.session_id)
WHERE s.session_id IS NULL';
$result = $db->sql_query($sql);
if ($row = $db->sql_fetchrow($result))
{
$sql_in = array();
do
{
$sql_in[] = (string) $row['session_id'];
}
while ($row = $db->sql_fetchrow($result));
// Remove expired sessions
$sql = 'DELETE FROM ' . FORUMS_ACCESS_TABLE . '
WHERE ' . $db->sql_in_set('session_id', $sql_in);
$db->sql_query($sql);
}
$db->sql_freeresult($result);
if (phpbb_check_hash($password, $forum_data['forum_password']))
{
$sql_ary = array(
'forum_id' => (int) $forum_data['forum_id'],
'user_id' => (int) $user->data['user_id'],
'session_id' => (string) $user->session_id,
);
$db->sql_query('INSERT INTO ' . FORUMS_ACCESS_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary));
return true;
}
$template->assign_var('LOGIN_ERROR', $user->lang['WRONG_PASSWORD']);
}
page_header($user->lang['LOGIN'], false);
$template->assign_vars(array(
'FORUM_NAME' => isset($forum_data['forum_name']) ? $forum_data['forum_name'] : '',
'S_LOGIN_ACTION' => build_url(array('f')),
'S_HIDDEN_FIELDS' => build_hidden_fields(array('f' => $forum_data['forum_id'])))
);
$template->set_filenames(array(
'body' => 'login_forum.html')
);
page_footer();
}
// Little helpers
/**
* Little helper for the build_hidden_fields function
*/
function _build_hidden_fields($key, $value, $specialchar, $stripslashes)
{
$hidden_fields = '';
if (!is_array($value))
{
$value = ($stripslashes) ? stripslashes($value) : $value;
$value = ($specialchar) ? htmlspecialchars($value, ENT_COMPAT, 'UTF-8') : $value;
$hidden_fields .= '<input type="hidden" name="' . $key . '" value="' . $value . '" />' . "\n";
}
else
{
foreach ($value as $_key => $_value)
{
$_key = ($stripslashes) ? stripslashes($_key) : $_key;
$_key = ($specialchar) ? htmlspecialchars($_key, ENT_COMPAT, 'UTF-8') : $_key;
$hidden_fields .= _build_hidden_fields($key . '[' . $_key . ']', $_value, $specialchar, $stripslashes);
}
}
return $hidden_fields;
}
/**
* Build simple hidden fields from array
*
* @param array $field_ary an array of values to build the hidden field from
* @param bool $specialchar if true, keys and values get specialchared
* @param bool $stripslashes if true, keys and values get stripslashed
*
* @return string the hidden fields
*/
function build_hidden_fields($field_ary, $specialchar = false, $stripslashes = false)
{
$s_hidden_fields = '';
foreach ($field_ary as $name => $vars)
{
$name = ($stripslashes) ? stripslashes($name) : $name;
$name = ($specialchar) ? htmlspecialchars($name, ENT_COMPAT, 'UTF-8') : $name;
$s_hidden_fields .= _build_hidden_fields($name, $vars, $specialchar, $stripslashes);
}
return $s_hidden_fields;
}
/**
* Parse cfg file
*/
function parse_cfg_file($filename, $lines = false)
{
$parsed_items = array();
if ($lines === false)
{
$lines = file($filename);
}
foreach ($lines as $line)
{
$line = trim($line);
if (!$line || $line[0] == '#' || ($delim_pos = strpos($line, '=')) === false)
{
continue;
}
// Determine first occurrence, since in values the equal sign is allowed
$key = strtolower(trim(substr($line, 0, $delim_pos)));
$value = trim(substr($line, $delim_pos + 1));
if (in_array($value, array('off', 'false', '0')))
{
$value = false;
}
else if (in_array($value, array('on', 'true', '1')))
{
$value = true;
}
else if (!trim($value))
{
$value = '';
}
else if (($value[0] == "'" && $value[sizeof($value) - 1] == "'") || ($value[0] == '"' && $value[sizeof($value) - 1] == '"'))
{
$value = substr($value, 1, sizeof($value)-2);
}
$parsed_items[$key] = $value;
}
if (isset($parsed_items['inherit_from']) && isset($parsed_items['name']) && $parsed_items['inherit_from'] == $parsed_items['name'])
{
unset($parsed_items['inherit_from']);
}
return $parsed_items;
}
/**
* Add log event
*/
function add_log()
{
global $db, $user;
// In phpBB 3.1.x i want to have logging in a class to be able to control it
// For now, we need a quite hakish approach to circumvent logging for some actions
// @todo implement cleanly
if (!empty($GLOBALS['skip_add_log']))
{
return false;
}
$args = func_get_args();
$mode = array_shift($args);
$reportee_id = ($mode == 'user') ? intval(array_shift($args)) : '';
$forum_id = ($mode == 'mod') ? intval(array_shift($args)) : '';
$topic_id = ($mode == 'mod') ? intval(array_shift($args)) : '';
$action = array_shift($args);
$data = (!sizeof($args)) ? '' : serialize($args);
$sql_ary = array(
'user_id' => (empty($user->data)) ? ANONYMOUS : $user->data['user_id'],
'log_ip' => $user->ip,
'log_time' => time(),
'log_operation' => $action,
'log_data' => $data,
);
switch ($mode)
{
case 'admin':
$sql_ary['log_type'] = LOG_ADMIN;
break;
case 'mod':
$sql_ary += array(
'log_type' => LOG_MOD,
'forum_id' => $forum_id,
'topic_id' => $topic_id
);
break;
case 'user':
$sql_ary += array(
'log_type' => LOG_USERS,
'reportee_id' => $reportee_id
);
break;
case 'critical':
$sql_ary['log_type'] = LOG_CRITICAL;
break;
default:
return false;
}
$db->sql_query('INSERT INTO ' . LOG_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary));
return $db->sql_nextid();
}
/**
* Return a nicely formatted backtrace.
*
* Turns the array returned by debug_backtrace() into HTML markup.
* Also filters out absolute paths to phpBB root.
*
* @return string HTML markup
*/
function get_backtrace()
{
$output = '<div style="font-family: monospace;">';
$backtrace = debug_backtrace();
// We skip the first one, because it only shows this file/function
unset($backtrace[0]);
foreach ($backtrace as $trace)
{
// Strip the current directory from path
$trace['file'] = (empty($trace['file'])) ? '(not given by php)' : htmlspecialchars(phpbb_filter_root_path($trace['file']));
$trace['line'] = (empty($trace['line'])) ? '(not given by php)' : $trace['line'];
// Only show function arguments for include etc.
// Other parameters may contain sensible information
$argument = '';
if (!empty($trace['args'][0]) && in_array($trace['function'], array('include', 'require', 'include_once', 'require_once')))
{
$argument = htmlspecialchars(phpbb_filter_root_path($trace['args'][0]));
}
$trace['class'] = (!isset($trace['class'])) ? '' : $trace['class'];
$trace['type'] = (!isset($trace['type'])) ? '' : $trace['type'];
$output .= '<br />';
$output .= '<b>FILE:</b> ' . $trace['file'] . '<br />';
$output .= '<b>LINE:</b> ' . ((!empty($trace['line'])) ? $trace['line'] : '') . '<br />';
$output .= '<b>CALL:</b> ' . htmlspecialchars($trace['class'] . $trace['type'] . $trace['function']);
$output .= '(' . (($argument !== '') ? "'$argument'" : '') . ')<br />';
}
$output .= '</div>';
return $output;
}
/**
* This function returns a regular expression pattern for commonly used expressions
* Use with / as delimiter for email mode and # for url modes
* mode can be: email|bbcode_htm|url|url_inline|www_url|www_url_inline|relative_url|relative_url_inline|ipv4|ipv6
*/
function get_preg_expression($mode)
{
switch ($mode)
{
case 'email':
// Regex written by James Watts and Francisco Jose Martin Moreno
// http://fightingforalostcause.net/misc/2006/compare-email-regex.php
return '([\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+\.)*(?:[\w\!\#$\%\'\*\+\-\/\=\?\^\`{\|\}\~]|&amp;)+@((((([a-z0-9]{1}[a-z0-9\-]{0,62}[a-z0-9]{1})|[a-z])\.)+[a-z]{2,63})|(\d{1,3}\.){3}\d{1,3}(\:\d{1,5})?)';
break;
case 'bbcode_htm':
return array(
'#<!\-\- e \-\-><a href="mailto:(.*?)">.*?</a><!\-\- e \-\->#',
'#<!\-\- l \-\-><a (?:class="[\w-]+" )?href="(.*?)(?:(&amp;|\?)sid=[0-9a-f]{32})?">.*?</a><!\-\- l \-\->#',
'#<!\-\- ([mw]) \-\-><a (?:class="[\w-]+" )?href="(.*?)">.*?</a><!\-\- \1 \-\->#',
'#<!\-\- s(.*?) \-\-><img src="\{SMILIES_PATH\}\/.*? \/><!\-\- s\1 \-\->#',
'#<!\-\- .*? \-\->#s',
'#<.*?>#s',
);
break;
// Whoa these look impressive!
// The code to generate the following two regular expressions which match valid IPv4/IPv6 addresses
// can be found in the develop directory
case 'ipv4':
return '#^(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$#';
break;
case 'ipv6':
return '#^(?:(?:(?:[\dA-F]{1,4}:){6}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:::(?:[\dA-F]{1,4}:){0,5}(?:[\dA-F]{1,4}(?::[\dA-F]{1,4})?|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:):(?:[\dA-F]{1,4}:){4}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,2}:(?:[\dA-F]{1,4}:){3}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,3}:(?:[\dA-F]{1,4}:){2}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,4}:(?:[\dA-F]{1,4}:)(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,5}:(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,6}:[\dA-F]{1,4})|(?:(?:[\dA-F]{1,4}:){1,7}:)|(?:::))$#i';
break;
case 'url':
case 'url_inline':
$inline = ($mode == 'url') ? ')' : '';
$scheme = ($mode == 'url') ? '[a-z\d+\-.]' : '[a-z\d+]'; // avoid automatic parsing of "word" in "last word.http://..."
// generated with regex generation file in the develop folder
return "[a-z]$scheme*:/{2}(?:(?:[a-z0-9\-._~!$&'($inline*+,;=:@|]+|%[\dA-F]{2})+|[0-9.]+|\[[a-z0-9.]+:[a-z0-9.]+:[a-z0-9.:]+\])(?::\d*)?(?:/(?:[a-z0-9\-._~!$&'($inline*+,;=:@|]+|%[\dA-F]{2})*)*(?:\?(?:[a-z0-9\-._~!$&'($inline*+,;=:@/?|]+|%[\dA-F]{2})*)?(?:\#(?:[a-z0-9\-._~!$&'($inline*+,;=:@/?|]+|%[\dA-F]{2})*)?";
break;
case 'www_url':
case 'www_url_inline':
$inline = ($mode == 'www_url') ? ')' : '';
return "www\.(?:[a-z0-9\-._~!$&'($inline*+,;=:@|]+|%[\dA-F]{2})+(?::\d*)?(?:/(?:[a-z0-9\-._~!$&'($inline*+,;=:@|]+|%[\dA-F]{2})*)*(?:\?(?:[a-z0-9\-._~!$&'($inline*+,;=:@/?|]+|%[\dA-F]{2})*)?(?:\#(?:[a-z0-9\-._~!$&'($inline*+,;=:@/?|]+|%[\dA-F]{2})*)?";
break;
case 'relative_url':
case 'relative_url_inline':
$inline = ($mode == 'relative_url') ? ')' : '';
return "(?:[a-z0-9\-._~!$&'($inline*+,;=:@|]+|%[\dA-F]{2})*(?:/(?:[a-z0-9\-._~!$&'($inline*+,;=:@|]+|%[\dA-F]{2})*)*(?:\?(?:[a-z0-9\-._~!$&'($inline*+,;=:@/?|]+|%[\dA-F]{2})*)?(?:\#(?:[a-z0-9\-._~!$&'($inline*+,;=:@/?|]+|%[\dA-F]{2})*)?";
break;
case 'table_prefix':
return '#^[a-zA-Z][a-zA-Z0-9_]*$#';
break;
}
return '';
}
/**
* Generate regexp for naughty words censoring
* Depends on whether installed PHP version supports unicode properties
*
* @param string $word word template to be replaced
* @param bool $use_unicode whether or not to take advantage of PCRE supporting unicode
*
* @return string $preg_expr regex to use with word censor
*/
function get_censor_preg_expression($word, $use_unicode = true)
{
static $unicode_support = null;
// Check whether PHP version supports unicode properties
if (is_null($unicode_support))
{
$unicode_support = ((version_compare(PHP_VERSION, '5.1.0', '>=') || (version_compare(PHP_VERSION, '5.0.0-dev', '<=') && version_compare(PHP_VERSION, '4.4.0', '>='))) && @preg_match('/\p{L}/u', 'a') !== false) ? true : false;
}
// Unescape the asterisk to simplify further conversions
$word = str_replace('\*', '*', preg_quote($word, '#'));
if ($use_unicode && $unicode_support)
{
// Replace asterisk(s) inside the pattern, at the start and at the end of it with regexes
$word = preg_replace(array('#(?<=[\p{Nd}\p{L}_])\*+(?=[\p{Nd}\p{L}_])#iu', '#^\*+#', '#\*+$#'), array('([\x20]*?|[\p{Nd}\p{L}_-]*?)', '[\p{Nd}\p{L}_-]*?', '[\p{Nd}\p{L}_-]*?'), $word);
// Generate the final substitution
$preg_expr = '#(?<![\p{Nd}\p{L}_-])(' . $word . ')(?![\p{Nd}\p{L}_-])#iu';
}
else
{
// Replace the asterisk inside the pattern, at the start and at the end of it with regexes
$word = preg_replace(array('#(?<=\S)\*+(?=\S)#iu', '#^\*+#', '#\*+$#'), array('(\x20*?\S*?)', '\S*?', '\S*?'), $word);
// Generate the final substitution
$preg_expr = '#(?<!\S)(' . $word . ')(?!\S)#iu';
}
return $preg_expr;
}
/**
* Returns the first block of the specified IPv6 address and as many additional
* ones as specified in the length paramater.
* If length is zero, then an empty string is returned.
* If length is greater than 3 the complete IP will be returned
*/
function short_ipv6($ip, $length)
{
if ($length < 1)
{
return '';
}
// extend IPv6 addresses
$blocks = substr_count($ip, ':') + 1;
if ($blocks < 9)
{
$ip = str_replace('::', ':' . str_repeat('0000:', 9 - $blocks), $ip);
}
if ($ip[0] == ':')
{
$ip = '0000' . $ip;
}
if ($length < 4)
{
$ip = implode(':', array_slice(explode(':', $ip), 0, 1 + $length));
}
return $ip;
}
/**
* Wrapper for php's checkdnsrr function.
*
* @param string $host Fully-Qualified Domain Name
* @param string $type Resource record type to lookup
* Supported types are: MX (default), A, AAAA, NS, TXT, CNAME
* Other types may work or may not work
*
* @return mixed true if entry found,
* false if entry not found,
* null if this function is not supported by this environment
*
* Since null can also be returned, you probably want to compare the result
* with === true or === false,
*
* @author bantu
*/
function phpbb_checkdnsrr($host, $type = 'MX')
{
// The dot indicates to search the DNS root (helps those having DNS prefixes on the same domain)
if (substr($host, -1) == '.')
{
$host_fqdn = $host;
$host = substr($host, 0, -1);
}
else
{
$host_fqdn = $host . '.';
}
// $host has format some.host.example.com
// $host_fqdn has format some.host.example.com.
// If we're looking for an A record we can use gethostbyname()
if ($type == 'A' && function_exists('gethostbyname'))
{
return (@gethostbyname($host_fqdn) == $host_fqdn) ? false : true;
}
// checkdnsrr() is available on Windows since PHP 5.3,
// but until 5.3.3 it only works for MX records
// See: http://bugs.php.net/bug.php?id=51844
// Call checkdnsrr() if
// we're looking for an MX record or
// we're not on Windows or
// we're running a PHP version where #51844 has been fixed
// checkdnsrr() supports AAAA since 5.0.0
// checkdnsrr() supports TXT since 5.2.4
if (
($type == 'MX' || DIRECTORY_SEPARATOR != '\\' || version_compare(PHP_VERSION, '5.3.3', '>=')) &&
($type != 'AAAA' || version_compare(PHP_VERSION, '5.0.0', '>=')) &&
($type != 'TXT' || version_compare(PHP_VERSION, '5.2.4', '>=')) &&
function_exists('checkdnsrr')
)
{
return checkdnsrr($host_fqdn, $type);
}
// dns_get_record() is available since PHP 5; since PHP 5.3 also on Windows,
// but on Windows it does not work reliable for AAAA records before PHP 5.3.1
// Call dns_get_record() if
// we're not looking for an AAAA record or
// we're not on Windows or
// we're running a PHP version where AAAA lookups work reliable
if (
($type != 'AAAA' || DIRECTORY_SEPARATOR != '\\' || version_compare(PHP_VERSION, '5.3.1', '>=')) &&
function_exists('dns_get_record')
)
{
// dns_get_record() expects an integer as second parameter
// We have to convert the string $type to the corresponding integer constant.
$type_constant = 'DNS_' . $type;
$type_param = (defined($type_constant)) ? constant($type_constant) : DNS_ANY;
// dns_get_record() might throw E_WARNING and return false for records that do not exist
$resultset = @dns_get_record($host_fqdn, $type_param);
if (empty($resultset) || !is_array($resultset))
{
return false;
}
else if ($type_param == DNS_ANY)
{
// $resultset is a non-empty array
return true;
}
foreach ($resultset as $result)
{
if (
isset($result['host']) && $result['host'] == $host &&
isset($result['type']) && $result['type'] == $type
)
{
return true;
}
}
return false;
}
// If we're on Windows we can still try to call nslookup via exec() as a last resort
if (DIRECTORY_SEPARATOR == '\\' && function_exists('exec'))
{
@exec('nslookup -type=' . escapeshellarg($type) . ' ' . escapeshellarg($host_fqdn), $output);
// If output is empty, the nslookup failed
if (empty($output))
{
return NULL;
}
foreach ($output as $line)
{
$line = trim($line);
if (empty($line))
{
continue;
}
// Squash tabs and multiple whitespaces to a single whitespace.
$line = preg_replace('/\s+/', ' ', $line);
switch ($type)
{
case 'MX':
if (stripos($line, "$host MX") === 0)
{
return true;
}
break;
case 'NS':
if (stripos($line, "$host nameserver") === 0)
{
return true;
}
break;
case 'TXT':
if (stripos($line, "$host text") === 0)
{
return true;
}
break;
case 'CNAME':
if (stripos($line, "$host canonical name") === 0)
{
return true;
}
break;
default:
case 'AAAA':
// AAAA records returned by nslookup on Windows XP/2003 have this format.
// Later Windows versions use the A record format below for AAAA records.
if (stripos($line, "$host AAAA IPv6 address") === 0)
{
return true;
}
// No break
case 'A':
if (!empty($host_matches))
{
// Second line
if (stripos($line, "Address: ") === 0)
{
return true;
}
else
{
$host_matches = false;
}
}
else if (stripos($line, "Name: $host") === 0)
{
// First line
$host_matches = true;
}
break;
}
}
return false;
}
return NULL;
}
// Handler, header and footer
/**
* Error and message handler, call with trigger_error if reqd
*/
function msg_handler($errno, $msg_text, $errfile, $errline)
{
global $cache, $db, $auth, $template, $config, $user;
global $phpEx, $phpbb_root_path, $msg_title, $msg_long_text;
// Do not display notices if we suppress them via @
if (error_reporting() == 0 && $errno != E_USER_ERROR && $errno != E_USER_WARNING && $errno != E_USER_NOTICE)
{
return;
}
// Message handler is stripping text. In case we need it, we are possible to define long text...
if (isset($msg_long_text) && $msg_long_text && !$msg_text)
{
$msg_text = $msg_long_text;
}
if (!defined('E_DEPRECATED'))
{
define('E_DEPRECATED', 8192);
}
switch ($errno)
{
case E_NOTICE:
case E_WARNING:
// Check the error reporting level and return if the error level does not match
// If DEBUG is defined the default level is E_ALL
if (($errno & ((defined('DEBUG')) ? E_ALL : error_reporting())) == 0)
{
return;
}
if (strpos($errfile, 'cache') === false && strpos($errfile, 'template.') === false)
{
$errfile = phpbb_filter_root_path($errfile);
$msg_text = phpbb_filter_root_path($msg_text);
$error_name = ($errno === E_WARNING) ? 'PHP Warning' : 'PHP Notice';
echo '<b>[phpBB Debug] ' . $error_name . '</b>: in file <b>' . $errfile . '</b> on line <b>' . $errline . '</b>: <b>' . $msg_text . '</b><br />' . "\n";
// we are writing an image - the user won't see the debug, so let's place it in the log
if (defined('IMAGE_OUTPUT') || defined('IN_CRON'))
{
add_log('critical', 'LOG_IMAGE_GENERATION_ERROR', $errfile, $errline, $msg_text);
}
// echo '<br /><br />BACKTRACE<br />' . get_backtrace() . '<br />' . "\n";
}
return;
break;
case E_USER_ERROR:
if (!empty($user) && !empty($user->lang))
{
$msg_text = (!empty($user->lang[$msg_text])) ? $user->lang[$msg_text] : $msg_text;
$msg_title = (!isset($msg_title)) ? $user->lang['GENERAL_ERROR'] : ((!empty($user->lang[$msg_title])) ? $user->lang[$msg_title] : $msg_title);
$l_return_index = sprintf($user->lang['RETURN_INDEX'], '<a href="' . $phpbb_root_path . '">', '</a>');
$l_notify = '';
if (!empty($config['board_contact']))
{
$l_notify = '<p>' . sprintf($user->lang['NOTIFY_ADMIN_EMAIL'], $config['board_contact']) . '</p>';
}
}
else
{
$msg_title = 'General Error';
$l_return_index = '<a href="' . $phpbb_root_path . '">Return to index page</a>';
$l_notify = '';
if (!empty($config['board_contact']))
{
$l_notify = '<p>Please notify the board administrator or webmaster: <a href="mailto:' . $config['board_contact'] . '">' . $config['board_contact'] . '</a></p>';
}
}
$log_text = $msg_text;
$backtrace = get_backtrace();
if ($backtrace)
{
$log_text .= '<br /><br />BACKTRACE<br />' . $backtrace;
}
if (defined('IN_INSTALL') || defined('DEBUG_EXTRA') || isset($auth) && $auth->acl_get('a_'))
{
$msg_text = $log_text;
}
if ((defined('DEBUG') || defined('IN_CRON') || defined('IMAGE_OUTPUT')) && isset($db))
{
// let's avoid loops
$db->sql_return_on_error(true);
add_log('critical', 'LOG_GENERAL_ERROR', $msg_title, $log_text);
$db->sql_return_on_error(false);
}
// Do not send 200 OK, but service unavailable on errors
send_status_line(503, 'Service Unavailable');
garbage_collection();
// Try to not call the adm page data...
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
echo '<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">';
echo '<head>';
echo '<meta http-equiv="content-type" content="text/html; charset=utf-8" />';
echo '<title>' . $msg_title . '</title>';
echo '<style type="text/css">' . "\n" . '/* <![CDATA[ */' . "\n";
echo '* { margin: 0; padding: 0; } html { font-size: 100%; height: 100%; margin-bottom: 1px; background-color: #E4EDF0; } body { font-family: "Lucida Grande", Verdana, Helvetica, Arial, sans-serif; color: #536482; background: #E4EDF0; font-size: 62.5%; margin: 0; } ';
echo 'a:link, a:active, a:visited { color: #006699; text-decoration: none; } a:hover { color: #DD6900; text-decoration: underline; } ';
echo '#wrap { padding: 0 20px 15px 20px; min-width: 615px; } #page-header { text-align: right; height: 40px; } #page-footer { clear: both; font-size: 1em; text-align: center; } ';
echo '.panel { margin: 4px 0; background-color: #FFFFFF; border: solid 1px #A9B8C2; } ';
echo '#errorpage #page-header a { font-weight: bold; line-height: 6em; } #errorpage #content { padding: 10px; } #errorpage #content h1 { line-height: 1.2em; margin-bottom: 0; color: #DF075C; } ';
echo '#errorpage #content div { margin-top: 20px; margin-bottom: 5px; border-bottom: 1px solid #CCCCCC; padding-bottom: 5px; color: #333333; font: bold 1.2em "Lucida Grande", Arial, Helvetica, sans-serif; text-decoration: none; line-height: 120%; text-align: left; } ';
echo "\n" . '/* ]]> */' . "\n";
echo '</style>';
echo '</head>';
echo '<body id="errorpage">';
echo '<div id="wrap">';
echo ' <div id="page-header">';
echo ' ' . $l_return_index;
echo ' </div>';
echo ' <div id="acp">';
echo ' <div class="panel">';
echo ' <div id="content">';
echo ' <h1>' . $msg_title . '</h1>';
echo ' <div>' . $msg_text . '</div>';
echo $l_notify;
echo ' </div>';
echo ' </div>';
echo ' </div>';
echo ' <div id="page-footer">';
echo ' Powered by <a href="https://www.phpbb.com/">phpBB</a>&reg; Forum Software &copy; phpBB Group';
echo ' </div>';
echo '</div>';
echo '</body>';
echo '</html>';
exit_handler();
// On a fatal error (and E_USER_ERROR *is* fatal) we never want other scripts to continue and force an exit here.
exit;
break;
case E_USER_WARNING:
case E_USER_NOTICE:
define('IN_ERROR_HANDLER', true);
if (empty($user->data))
{
$user->session_begin();
}
// We re-init the auth array to get correct results on login/logout
$auth->acl($user->data);
if (empty($user->lang))
{
$user->setup();
}
if ($msg_text == 'ERROR_NO_ATTACHMENT' || $msg_text == 'NO_FORUM' || $msg_text == 'NO_TOPIC' || $msg_text == 'NO_USER')
{
send_status_line(404, 'Not Found');
}
$msg_text = (!empty($user->lang[$msg_text])) ? $user->lang[$msg_text] : $msg_text;
$msg_title = (!isset($msg_title)) ? $user->lang['INFORMATION'] : ((!empty($user->lang[$msg_title])) ? $user->lang[$msg_title] : $msg_title);
if (!defined('HEADER_INC'))
{
if (defined('IN_ADMIN') && isset($user->data['session_admin']) && $user->data['session_admin'])
{
adm_page_header($msg_title);
}
else
{
page_header($msg_title, false);
}
}
$template->set_filenames(array(
'body' => 'message_body.html')
);
$template->assign_vars(array(
'MESSAGE_TITLE' => $msg_title,
'MESSAGE_TEXT' => $msg_text,
'S_USER_WARNING' => ($errno == E_USER_WARNING) ? true : false,
'S_USER_NOTICE' => ($errno == E_USER_NOTICE) ? true : false)
);
// We do not want the cron script to be called on error messages
define('IN_CRON', true);
if (defined('IN_ADMIN') && isset($user->data['session_admin']) && $user->data['session_admin'])
{
adm_page_footer();
}
else
{
page_footer();
}
exit_handler();
break;
// PHP4 compatibility
case E_DEPRECATED:
return true;
break;
}
// If we notice an error not handled here we pass this back to PHP by returning false
// This may not work for all php versions
return false;
}
/**
* Removes absolute path to phpBB root directory from error messages
* and converts backslashes to forward slashes.
*
* @param string $errfile Absolute file path
* (e.g. /var/www/phpbb3/phpBB/includes/functions.php)
* Please note that if $errfile is outside of the phpBB root,
* the root path will not be found and can not be filtered.
* @return string Relative file path
* (e.g. /includes/functions.php)
*/
function phpbb_filter_root_path($errfile)
{
static $root_path;
if (empty($root_path))
{
$root_path = phpbb_realpath(dirname(__FILE__) . '/../');
}
return str_replace(array($root_path, '\\'), array('[ROOT]', '/'), $errfile);
}
/**
* Queries the session table to get information about online guests
* @param int $item_id Limits the search to the item with this id
* @param string $item The name of the item which is stored in the session table as session_{$item}_id
* @return int The number of active distinct guest sessions
*/
function obtain_guest_count($item_id = 0, $item = 'forum')
{
global $db, $config;
if ($item_id)
{
$reading_sql = ' AND s.session_' . $item . '_id = ' . (int) $item_id;
}
else
{
$reading_sql = '';
}
$time = (time() - (intval($config['load_online_time']) * 60));
// Get number of online guests
if ($db->sql_layer === 'sqlite')
{
$sql = 'SELECT COUNT(session_ip) as num_guests
FROM (
SELECT DISTINCT s.session_ip
FROM ' . SESSIONS_TABLE . ' s
WHERE s.session_user_id = ' . ANONYMOUS . '
AND s.session_time >= ' . ($time - ((int) ($time % 60))) .
$reading_sql .
')';
}
else
{
$sql = 'SELECT COUNT(DISTINCT s.session_ip) as num_guests
FROM ' . SESSIONS_TABLE . ' s
WHERE s.session_user_id = ' . ANONYMOUS . '
AND s.session_time >= ' . ($time - ((int) ($time % 60))) .
$reading_sql;
}
$result = $db->sql_query($sql);
$guests_online = (int) $db->sql_fetchfield('num_guests');
$db->sql_freeresult($result);
return $guests_online;
}
/**
* Queries the session table to get information about online users
* @param int $item_id Limits the search to the item with this id
* @param string $item The name of the item which is stored in the session table as session_{$item}_id
* @return array An array containing the ids of online, hidden and visible users, as well as statistical info
*/
function obtain_users_online($item_id = 0, $item = 'forum')
{
global $db, $config, $user;
$reading_sql = '';
if ($item_id !== 0)
{
$reading_sql = ' AND s.session_' . $item . '_id = ' . (int) $item_id;
}
$online_users = array(
'online_users' => array(),
'hidden_users' => array(),
'total_online' => 0,
'visible_online' => 0,
'hidden_online' => 0,
'guests_online' => 0,
);
if ($config['load_online_guests'])
{
$online_users['guests_online'] = obtain_guest_count($item_id, $item);
}
// a little discrete magic to cache this for 30 seconds
$time = (time() - (intval($config['load_online_time']) * 60));
$sql = 'SELECT s.session_user_id, s.session_ip, s.session_viewonline
FROM ' . SESSIONS_TABLE . ' s
WHERE s.session_time >= ' . ($time - ((int) ($time % 30))) .
$reading_sql .
' AND s.session_user_id <> ' . ANONYMOUS;
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
// Skip multiple sessions for one user
if (!isset($online_users['online_users'][$row['session_user_id']]))
{
$online_users['online_users'][$row['session_user_id']] = (int) $row['session_user_id'];
if ($row['session_viewonline'])
{
$online_users['visible_online']++;
}
else
{
$online_users['hidden_users'][$row['session_user_id']] = (int) $row['session_user_id'];
$online_users['hidden_online']++;
}
}
}
$online_users['total_online'] = $online_users['guests_online'] + $online_users['visible_online'] + $online_users['hidden_online'];
$db->sql_freeresult($result);
return $online_users;
}
/**
* Uses the result of obtain_users_online to generate a localized, readable representation.
* @param mixed $online_users result of obtain_users_online - array with user_id lists for total, hidden and visible users, and statistics
* @param int $item_id Indicate that the data is limited to one item and not global
* @param string $item The name of the item which is stored in the session table as session_{$item}_id
* @return array An array containing the string for output to the template
*/
function obtain_users_online_string($online_users, $item_id = 0, $item = 'forum')
{
global $config, $db, $user, $auth;
$user_online_link = $online_userlist = '';
// Need caps version of $item for language-strings
$item_caps = strtoupper($item);
if (sizeof($online_users['online_users']))
{
$sql = 'SELECT username, username_clean, user_id, user_type, user_allow_viewonline, user_colour
FROM ' . USERS_TABLE . '
WHERE ' . $db->sql_in_set('user_id', $online_users['online_users']) . '
ORDER BY username_clean ASC';
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
// User is logged in and therefore not a guest
if ($row['user_id'] != ANONYMOUS)
{
if (isset($online_users['hidden_users'][$row['user_id']]))
{
$row['username'] = '<em>' . $row['username'] . '</em>';
}
if (!isset($online_users['hidden_users'][$row['user_id']]) || $auth->acl_get('u_viewonline'))
{
$user_online_link = get_username_string(($row['user_type'] <> USER_IGNORE) ? 'full' : 'no_profile', $row['user_id'], $row['username'], $row['user_colour']);
$online_userlist .= ($online_userlist != '') ? ', ' . $user_online_link : $user_online_link;
}
}
}
$db->sql_freeresult($result);
}
if (!$online_userlist)
{
$online_userlist = $user->lang['NO_ONLINE_USERS'];
}
if ($item_id === 0)
{
$online_userlist = $user->lang['REGISTERED_USERS'] . ' ' . $online_userlist;
}
else if ($config['load_online_guests'])
{
$l_online = ($online_users['guests_online'] === 1) ? $user->lang['BROWSING_' . $item_caps . '_GUEST'] : $user->lang['BROWSING_' . $item_caps . '_GUESTS'];
$online_userlist = sprintf($l_online, $online_userlist, $online_users['guests_online']);
}
else
{
$online_userlist = sprintf($user->lang['BROWSING_' . $item_caps], $online_userlist);
}
// Build online listing
$vars_online = array(
'ONLINE' => array('total_online', 'l_t_user_s', 0),
'REG' => array('visible_online', 'l_r_user_s', !$config['load_online_guests']),
'HIDDEN' => array('hidden_online', 'l_h_user_s', $config['load_online_guests']),
'GUEST' => array('guests_online', 'l_g_user_s', 0)
);
foreach ($vars_online as $l_prefix => $var_ary)
{
if ($var_ary[2])
{
$l_suffix = '_AND';
}
else
{
$l_suffix = '';
}
switch ($online_users[$var_ary[0]])
{
case 0:
${$var_ary[1]} = $user->lang[$l_prefix . '_USERS_ZERO_TOTAL' . $l_suffix];
break;
case 1:
${$var_ary[1]} = $user->lang[$l_prefix . '_USER_TOTAL' . $l_suffix];
break;
default:
${$var_ary[1]} = $user->lang[$l_prefix . '_USERS_TOTAL' . $l_suffix];
break;
}
}
unset($vars_online);
$l_online_users = sprintf($l_t_user_s, $online_users['total_online']);
$l_online_users .= sprintf($l_r_user_s, $online_users['visible_online']);
$l_online_users .= sprintf($l_h_user_s, $online_users['hidden_online']);
if ($config['load_online_guests'])
{
$l_online_users .= sprintf($l_g_user_s, $online_users['guests_online']);
}
return array(
'online_userlist' => $online_userlist,
'l_online_users' => $l_online_users,
);
}
/**
* Get option bitfield from custom data
*
* @param int $bit The bit/value to get
* @param int $data Current bitfield to check
* @return bool Returns true if value of constant is set in bitfield, else false
*/
function phpbb_optionget($bit, $data)
{
return ($data & 1 << (int) $bit) ? true : false;
}
/**
* Set option bitfield
*
* @param int $bit The bit/value to set/unset
* @param bool $set True if option should be set, false if option should be unset.
* @param int $data Current bitfield to change
*
* @return int The new bitfield
*/
function phpbb_optionset($bit, $set, $data)
{
if ($set && !($data & 1 << $bit))
{
$data += 1 << $bit;
}
else if (!$set && ($data & 1 << $bit))
{
$data -= 1 << $bit;
}
return $data;
}
/**
* Login using http authenticate.
*
* @param array $param Parameter array, see $param_defaults array.
*
* @return null
*/
function phpbb_http_login($param)
{
global $auth, $user;
global $config;
$param_defaults = array(
'auth_message' => '',
'autologin' => false,
'viewonline' => true,
'admin' => false,
);
// Overwrite default values with passed values
$param = array_merge($param_defaults, $param);
// User is already logged in
// We will not overwrite his session
if (!empty($user->data['is_registered']))
{
return;
}
// $_SERVER keys to check
$username_keys = array(
'PHP_AUTH_USER',
'Authorization',
'REMOTE_USER', 'REDIRECT_REMOTE_USER',
'HTTP_AUTHORIZATION', 'REDIRECT_HTTP_AUTHORIZATION',
'REMOTE_AUTHORIZATION', 'REDIRECT_REMOTE_AUTHORIZATION',
'AUTH_USER',
);
$password_keys = array(
'PHP_AUTH_PW',
'REMOTE_PASSWORD',
'AUTH_PASSWORD',
);
$username = null;
foreach ($username_keys as $k)
{
if (isset($_SERVER[$k]))
{
$username = $_SERVER[$k];
break;
}
}
$password = null;
foreach ($password_keys as $k)
{
if (isset($_SERVER[$k]))
{
$password = $_SERVER[$k];
break;
}
}
// Decode encoded information (IIS, CGI, FastCGI etc.)
if (!is_null($username) && is_null($password) && strpos($username, 'Basic ') === 0)
{
list($username, $password) = explode(':', base64_decode(substr($username, 6)), 2);
}
if (!is_null($username) && !is_null($password))
{
set_var($username, $username, 'string', true);
set_var($password, $password, 'string', true);
$auth_result = $auth->login($username, $password, $param['autologin'], $param['viewonline'], $param['admin']);
if ($auth_result['status'] == LOGIN_SUCCESS)
{
return;
}
else if ($auth_result['status'] == LOGIN_ERROR_ATTEMPTS)
{
send_status_line(401, 'Unauthorized');
trigger_error('NOT_AUTHORISED');
}
}
// Prepend sitename to auth_message
$param['auth_message'] = ($param['auth_message'] === '') ? $config['sitename'] : $config['sitename'] . ' - ' . $param['auth_message'];
// We should probably filter out non-ASCII characters - RFC2616
$param['auth_message'] = preg_replace('/[\x80-\xFF]/', '?', $param['auth_message']);
header('WWW-Authenticate: Basic realm="' . $param['auth_message'] . '"');
send_status_line(401, 'Unauthorized');
trigger_error('NOT_AUTHORISED');
}
/**
* Generate page header
*/
function page_header($page_title = '', $display_online_list = true, $item_id = 0, $item = 'forum')
{
global $db, $config, $template, $SID, $_SID, $_EXTRA_URL, $user, $auth, $phpEx, $phpbb_root_path;
if (defined('HEADER_INC'))
{
return;
}
define('HEADER_INC', true);
// gzip_compression
if ($config['gzip_compress'])
{
// to avoid partially compressed output resulting in blank pages in
// the browser or error messages, compression is disabled in a few cases:
//
// 1) if headers have already been sent, this indicates plaintext output
// has been started so further content must not be compressed
// 2) the length of the current output buffer is non-zero. This means
// there is already some uncompressed content in this output buffer
// so further output must not be compressed
// 3) if more than one level of output buffering is used because we
// cannot test all output buffer level content lengths. One level
// could be caused by php.ini output_buffering. Anything
// beyond that is manual, so the code wrapping phpBB in output buffering
// can easily compress the output itself.
//
if (@extension_loaded('zlib') && !headers_sent() && ob_get_level() <= 1 && ob_get_length() == 0)
{
ob_start('ob_gzhandler');
}
}
// Generate logged in/logged out status
$login_logout_redirect = false;
if ($user->data['user_id'] != ANONYMOUS)
{
if ($user->page['page_name'] == 'viewtopic.php' || $user->page['page_name'] == 'viewforum.php')
{
$login_logout_redirect = true;
}
$u_login_logout = append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=logout' . (($login_logout_redirect) ? '&amp;redirect=' . urlencode($user->page['page']) : ''), true, $user->session_id);
$l_login_logout = sprintf($user->lang['LOGOUT_USER'], $user->data['username']);
}
else
{
if ($user->page['page_name'] == 'viewtopic.php' || $user->page['page_name'] == 'viewforum.php')
{
$login_logout_redirect = true;
}
$u_login_logout = append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=login' . (($login_logout_redirect) ? '&amp;redirect=' . urlencode($user->page['page']) : ''));
$l_login_logout = $user->lang['LOGIN'];
}
// Last visit date/time
$s_last_visit = ($user->data['user_id'] != ANONYMOUS) ? $user->format_date($user->data['session_last_visit']) : '';
// Get users online list ... if required
$l_online_users = $online_userlist = $l_online_record = $l_online_time = '';
if ($config['load_online'] && $config['load_online_time'] && $display_online_list)
{
/**
* Load online data:
* For obtaining another session column use $item and $item_id in the function-parameter, whereby the column is session_{$item}_id.
*/
$item_id = max($item_id, 0);
$online_users = obtain_users_online($item_id, $item);
$user_online_strings = obtain_users_online_string($online_users, $item_id, $item);
$l_online_users = $user_online_strings['l_online_users'];
$online_userlist = $user_online_strings['online_userlist'];
$total_online_users = $online_users['total_online'];
if ($total_online_users > $config['record_online_users'])
{
set_config('record_online_users', $total_online_users, true);
set_config('record_online_date', time(), true);
}
$l_online_record = sprintf($user->lang['RECORD_ONLINE_USERS'], $config['record_online_users'], $user->format_date($config['record_online_date'], false, true));
$l_online_time = ($config['load_online_time'] == 1) ? 'VIEW_ONLINE_TIME' : 'VIEW_ONLINE_TIMES';
$l_online_time = sprintf($user->lang[$l_online_time], $config['load_online_time']);
}
$l_privmsgs_text = $l_privmsgs_text_unread = '';
$s_privmsg_new = false;
// Obtain number of new private messages if user is logged in
if (!empty($user->data['is_registered']))
{
if ($user->data['user_new_privmsg'])
{
$l_message_new = ($user->data['user_new_privmsg'] == 1) ? $user->lang['NEW_PM'] : $user->lang['NEW_PMS'];
$l_privmsgs_text = sprintf($l_message_new, $user->data['user_new_privmsg']);
if (!$user->data['user_last_privmsg'] || $user->data['user_last_privmsg'] > $user->data['session_last_visit'])
{
$sql = 'UPDATE ' . USERS_TABLE . '
SET user_last_privmsg = ' . $user->data['session_last_visit'] . '
WHERE user_id = ' . $user->data['user_id'];
$db->sql_query($sql);
$s_privmsg_new = true;
}
else
{
$s_privmsg_new = false;
}
}
else
{
$l_privmsgs_text = $user->lang['NO_NEW_PM'];
$s_privmsg_new = false;
}
$l_privmsgs_text_unread = '';
if ($user->data['user_unread_privmsg'] && $user->data['user_unread_privmsg'] != $user->data['user_new_privmsg'])
{
$l_message_unread = ($user->data['user_unread_privmsg'] == 1) ? $user->lang['UNREAD_PM'] : $user->lang['UNREAD_PMS'];
$l_privmsgs_text_unread = sprintf($l_message_unread, $user->data['user_unread_privmsg']);
}
}
$forum_id = request_var('f', 0);
$topic_id = request_var('t', 0);
$s_feed_news = false;
// Get option for news
if ($config['feed_enable'])
{
$sql = 'SELECT forum_id
FROM ' . FORUMS_TABLE . '
WHERE ' . $db->sql_bit_and('forum_options', FORUM_OPTION_FEED_NEWS, '<> 0');
$result = $db->sql_query_limit($sql, 1, 0, 600);
$s_feed_news = (int) $db->sql_fetchfield('forum_id');
$db->sql_freeresult($result);
}
// Determine board url - we may need it later
$board_url = generate_board_url() . '/';
$web_path = (defined('PHPBB_USE_BOARD_URL_PATH') && PHPBB_USE_BOARD_URL_PATH) ? $board_url : $phpbb_root_path;
// Which timezone?
$tz = ($user->data['user_id'] != ANONYMOUS) ? strval(doubleval($user->data['user_timezone'])) : strval(doubleval($config['board_timezone']));
// Send a proper content-language to the output
$user_lang = $user->lang['USER_LANG'];
if (strpos($user_lang, '-x-') !== false)
{
$user_lang = substr($user_lang, 0, strpos($user_lang, '-x-'));
}
$s_search_hidden_fields = array();
if ($_SID)
{
$s_search_hidden_fields['sid'] = $_SID;
}
if (!empty($_EXTRA_URL))
{
foreach ($_EXTRA_URL as $url_param)
{
$url_param = explode('=', $url_param, 2);
$s_search_hidden_fields[$url_param[0]] = $url_param[1];
}
}
// The following assigns all _common_ variables that may be used at any point in a template.
$template->assign_vars(array(
'SITENAME' => $config['sitename'],
'SITE_DESCRIPTION' => $config['site_desc'],
'PAGE_TITLE' => $page_title,
'SCRIPT_NAME' => str_replace('.' . $phpEx, '', $user->page['page_name']),
'LAST_VISIT_DATE' => sprintf($user->lang['YOU_LAST_VISIT'], $s_last_visit),
'LAST_VISIT_YOU' => $s_last_visit,
'CURRENT_TIME' => sprintf($user->lang['CURRENT_TIME'], $user->format_date(time(), false, true)),
'TOTAL_USERS_ONLINE' => $l_online_users,
'LOGGED_IN_USER_LIST' => $online_userlist,
'RECORD_USERS' => $l_online_record,
'PRIVATE_MESSAGE_INFO' => $l_privmsgs_text,
'PRIVATE_MESSAGE_INFO_UNREAD' => $l_privmsgs_text_unread,
'S_USER_NEW_PRIVMSG' => $user->data['user_new_privmsg'],
'S_USER_UNREAD_PRIVMSG' => $user->data['user_unread_privmsg'],
'S_USER_NEW' => $user->data['user_new'],
'SID' => $SID,
'_SID' => $_SID,
'SESSION_ID' => $user->session_id,
'ROOT_PATH' => $phpbb_root_path,
'BOARD_URL' => $board_url,
'L_LOGIN_LOGOUT' => $l_login_logout,
'L_INDEX' => $user->lang['FORUM_INDEX'],
'L_ONLINE_EXPLAIN' => $l_online_time,
'U_PRIVATEMSGS' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'i=pm&amp;folder=inbox'),
'U_RETURN_INBOX' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'i=pm&amp;folder=inbox'),
'U_POPUP_PM' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'i=pm&amp;mode=popup'),
'UA_POPUP_PM' => addslashes(append_sid("{$phpbb_root_path}ucp.$phpEx", 'i=pm&amp;mode=popup')),
'U_MEMBERLIST' => append_sid("{$phpbb_root_path}memberlist.$phpEx"),
'U_VIEWONLINE' => ($auth->acl_gets('u_viewprofile', 'a_user', 'a_useradd', 'a_userdel')) ? append_sid("{$phpbb_root_path}viewonline.$phpEx") : '',
'U_LOGIN_LOGOUT' => $u_login_logout,
'U_INDEX' => append_sid("{$phpbb_root_path}index.$phpEx"),
'U_SEARCH' => append_sid("{$phpbb_root_path}search.$phpEx"),
'U_REGISTER' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=register'),
'U_PROFILE' => append_sid("{$phpbb_root_path}ucp.$phpEx"),
'U_MODCP' => append_sid("{$phpbb_root_path}mcp.$phpEx", false, true, $user->session_id),
'U_FAQ' => append_sid("{$phpbb_root_path}faq.$phpEx"),
'U_SEARCH_SELF' => append_sid("{$phpbb_root_path}search.$phpEx", 'search_id=egosearch'),
'U_SEARCH_NEW' => append_sid("{$phpbb_root_path}search.$phpEx", 'search_id=newposts'),
'U_SEARCH_UNANSWERED' => append_sid("{$phpbb_root_path}search.$phpEx", 'search_id=unanswered'),
'U_SEARCH_UNREAD' => append_sid("{$phpbb_root_path}search.$phpEx", 'search_id=unreadposts'),
'U_SEARCH_ACTIVE_TOPICS'=> append_sid("{$phpbb_root_path}search.$phpEx", 'search_id=active_topics'),
'U_DELETE_COOKIES' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=delete_cookies'),
'U_TEAM' => ($user->data['user_id'] != ANONYMOUS && !$auth->acl_get('u_viewprofile')) ? '' : append_sid("{$phpbb_root_path}memberlist.$phpEx", 'mode=leaders'),
'U_TERMS_USE' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=terms'),
'U_PRIVACY' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=privacy'),
'U_RESTORE_PERMISSIONS' => ($user->data['user_perm_from'] && $auth->acl_get('a_switchperm')) ? append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=restore_perm') : '',
'U_FEED' => generate_board_url() . "/feed.$phpEx",
'S_USER_LOGGED_IN' => ($user->data['user_id'] != ANONYMOUS) ? true : false,
'S_AUTOLOGIN_ENABLED' => ($config['allow_autologin']) ? true : false,
'S_BOARD_DISABLED' => ($config['board_disable']) ? true : false,
'S_REGISTERED_USER' => (!empty($user->data['is_registered'])) ? true : false,
'S_IS_BOT' => (!empty($user->data['is_bot'])) ? true : false,
'S_USER_PM_POPUP' => $user->optionget('popuppm'),
'S_USER_LANG' => $user_lang,
'S_USER_BROWSER' => (isset($user->data['session_browser'])) ? $user->data['session_browser'] : $user->lang['UNKNOWN_BROWSER'],
'S_USERNAME' => $user->data['username'],
'S_CONTENT_DIRECTION' => $user->lang['DIRECTION'],
'S_CONTENT_FLOW_BEGIN' => ($user->lang['DIRECTION'] == 'ltr') ? 'left' : 'right',
'S_CONTENT_FLOW_END' => ($user->lang['DIRECTION'] == 'ltr') ? 'right' : 'left',
'S_CONTENT_ENCODING' => 'UTF-8',
'S_TIMEZONE' => ($user->data['user_dst'] || ($user->data['user_id'] == ANONYMOUS && $config['board_dst'])) ? sprintf($user->lang['ALL_TIMES'], $user->lang['tz'][$tz], $user->lang['tz']['dst']) : sprintf($user->lang['ALL_TIMES'], $user->lang['tz'][$tz], ''),
'S_DISPLAY_ONLINE_LIST' => ($l_online_time) ? 1 : 0,
'S_DISPLAY_SEARCH' => (!$config['load_search']) ? 0 : (isset($auth) ? ($auth->acl_get('u_search') && $auth->acl_getf_global('f_search')) : 1),
'S_DISPLAY_PM' => ($config['allow_privmsg'] && !empty($user->data['is_registered']) && ($auth->acl_get('u_readpm') || $auth->acl_get('u_sendpm'))) ? true : false,
'S_DISPLAY_MEMBERLIST' => (isset($auth)) ? $auth->acl_get('u_viewprofile') : 0,
'S_NEW_PM' => ($s_privmsg_new) ? 1 : 0,
'S_REGISTER_ENABLED' => ($config['require_activation'] != USER_ACTIVATION_DISABLE) ? true : false,
'S_FORUM_ID' => $forum_id,
'S_TOPIC_ID' => $topic_id,
'S_LOGIN_ACTION' => ((!defined('ADMIN_START')) ? append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=login') : append_sid("index.$phpEx", false, true, $user->session_id)),
'S_LOGIN_REDIRECT' => build_hidden_fields(array('redirect' => build_url())),
'S_ENABLE_FEEDS' => ($config['feed_enable']) ? true : false,
'S_ENABLE_FEEDS_OVERALL' => ($config['feed_overall']) ? true : false,
'S_ENABLE_FEEDS_FORUMS' => ($config['feed_overall_forums']) ? true : false,
'S_ENABLE_FEEDS_TOPICS' => ($config['feed_topics_new']) ? true : false,
'S_ENABLE_FEEDS_TOPICS_ACTIVE' => ($config['feed_topics_active']) ? true : false,
'S_ENABLE_FEEDS_NEWS' => ($s_feed_news) ? true : false,
'S_LOAD_UNREADS' => ($config['load_unreads_search'] && ($config['load_anon_lastread'] || $user->data['is_registered'])) ? true : false,
'S_SEARCH_HIDDEN_FIELDS' => build_hidden_fields($s_search_hidden_fields),
'T_THEME_PATH' => "{$web_path}styles/" . rawurlencode($user->theme['theme_path']) . '/theme',
'T_TEMPLATE_PATH' => "{$web_path}styles/" . rawurlencode($user->theme['template_path']) . '/template',
'T_SUPER_TEMPLATE_PATH' => (isset($user->theme['template_inherit_path']) && $user->theme['template_inherit_path']) ? "{$web_path}styles/" . rawurlencode($user->theme['template_inherit_path']) . '/template' : "{$web_path}styles/" . rawurlencode($user->theme['template_path']) . '/template',
'T_IMAGESET_PATH' => "{$web_path}styles/" . rawurlencode($user->theme['imageset_path']) . '/imageset',
'T_IMAGESET_LANG_PATH' => "{$web_path}styles/" . rawurlencode($user->theme['imageset_path']) . '/imageset/' . $user->lang_name,
'T_IMAGES_PATH' => "{$web_path}images/",
'T_SMILIES_PATH' => "{$web_path}{$config['smilies_path']}/",
'T_AVATAR_PATH' => "{$web_path}{$config['avatar_path']}/",
'T_AVATAR_GALLERY_PATH' => "{$web_path}{$config['avatar_gallery_path']}/",
'T_ICONS_PATH' => "{$web_path}{$config['icons_path']}/",
'T_RANKS_PATH' => "{$web_path}{$config['ranks_path']}/",
'T_UPLOAD_PATH' => "{$web_path}{$config['upload_path']}/",
'T_STYLESHEET_LINK' => (!$user->theme['theme_storedb']) ? "{$web_path}styles/" . rawurlencode($user->theme['theme_path']) . '/theme/stylesheet.css' : append_sid("{$phpbb_root_path}style.$phpEx", 'id=' . $user->theme['style_id'] . '&amp;lang=' . $user->lang_name),
'T_STYLESHEET_NAME' => $user->theme['theme_name'],
'T_THEME_NAME' => rawurlencode($user->theme['theme_path']),
'T_TEMPLATE_NAME' => rawurlencode($user->theme['template_path']),
'T_SUPER_TEMPLATE_NAME' => rawurlencode((isset($user->theme['template_inherit_path']) && $user->theme['template_inherit_path']) ? $user->theme['template_inherit_path'] : $user->theme['template_path']),
'T_IMAGESET_NAME' => rawurlencode($user->theme['imageset_path']),
'T_IMAGESET_LANG_NAME' => $user->data['user_lang'],
'T_IMAGES' => 'images',
'T_SMILIES' => $config['smilies_path'],
'T_AVATAR' => $config['avatar_path'],
'T_AVATAR_GALLERY' => $config['avatar_gallery_path'],
'T_ICONS' => $config['icons_path'],
'T_RANKS' => $config['ranks_path'],
'T_UPLOAD' => $config['upload_path'],
'SITE_LOGO_IMG' => $user->img('site_logo'),
'A_COOKIE_SETTINGS' => addslashes('; path=' . $config['cookie_path'] . ((!$config['cookie_domain'] || $config['cookie_domain'] == 'localhost' || $config['cookie_domain'] == '127.0.0.1') ? '' : '; domain=' . $config['cookie_domain']) . ((!$config['cookie_secure']) ? '' : '; secure')),
));
// application/xhtml+xml not used because of IE
header('Content-type: text/html; charset=UTF-8');
header('Cache-Control: private, no-cache="set-cookie"');
header('Expires: 0');
header('Pragma: no-cache');
if (!empty($user->data['is_bot']))
{
// Let reverse proxies know we detected a bot.
header('X-PHPBB-IS-BOT: yes');
}
return;
}
/**
* Generate page footer
*/
function page_footer($run_cron = true)
{
global $db, $config, $template, $user, $auth, $cache, $starttime, $phpbb_root_path, $phpEx;
// Output page creation time
if (defined('DEBUG'))
{
$mtime = explode(' ', microtime());
$totaltime = $mtime[0] + $mtime[1] - $starttime;
if (!empty($_REQUEST['explain']) && $auth->acl_get('a_') && defined('DEBUG_EXTRA') && method_exists($db, 'sql_report'))
{
$db->sql_report('display');
}
$debug_output = sprintf('Time : %.3fs | ' . $db->sql_num_queries() . ' Queries | GZIP : ' . (($config['gzip_compress'] && @extension_loaded('zlib')) ? 'On' : 'Off') . (($user->load) ? ' | Load : ' . $user->load : ''), $totaltime);
if ($auth->acl_get('a_') && defined('DEBUG_EXTRA'))
{
if (function_exists('memory_get_usage'))
{
if ($memory_usage = memory_get_usage())
{
global $base_memory_usage;
$memory_usage -= $base_memory_usage;
$memory_usage = get_formatted_filesize($memory_usage);
$debug_output .= ' | Memory Usage: ' . $memory_usage;
}
}
$debug_output .= ' | <a href="' . build_url() . '&amp;explain=1">Explain</a>';
}
}
$template->assign_vars(array(
'DEBUG_OUTPUT' => (defined('DEBUG')) ? $debug_output : '',
'TRANSLATION_INFO' => (!empty($user->lang['TRANSLATION_INFO'])) ? $user->lang['TRANSLATION_INFO'] : '',
'CREDIT_LINE' => $user->lang('POWERED_BY', '<a href="https://www.phpbb.com/">phpBB</a>&reg; Forum Software &copy; phpBB Group'),
'U_ACP' => ($auth->acl_get('a_') && !empty($user->data['is_registered'])) ? append_sid("{$phpbb_root_path}adm/index.$phpEx", false, true, $user->session_id) : '')
);
// Call cron-type script
$call_cron = false;
if (!defined('IN_CRON') && $run_cron && !$config['board_disable'] && !$user->data['is_bot'])
{
$call_cron = true;
$time_now = (!empty($user->time_now) && is_int($user->time_now)) ? $user->time_now : time();
// Any old lock present?
if (!empty($config['cron_lock']))
{
$cron_time = explode(' ', $config['cron_lock']);
// If 1 hour lock is present we do not call cron.php
if ($cron_time[0] + 3600 >= $time_now)
{
$call_cron = false;
}
}
}
// Call cron job?
if ($call_cron)
{
$cron_type = '';
if ($time_now - $config['queue_interval'] > $config['last_queue_run'] && !defined('IN_ADMIN') && file_exists($phpbb_root_path . 'cache/queue.' . $phpEx))
{
// Process email queue
$cron_type = 'queue';
}
else if (method_exists($cache, 'tidy') && $time_now - $config['cache_gc'] > $config['cache_last_gc'])
{
// Tidy the cache
$cron_type = 'tidy_cache';
}
else if ($config['warnings_expire_days'] && ($time_now - $config['warnings_gc'] > $config['warnings_last_gc']))
{
$cron_type = 'tidy_warnings';
}
else if ($time_now - $config['database_gc'] > $config['database_last_gc'])
{
// Tidy the database
$cron_type = 'tidy_database';
}
else if ($time_now - $config['search_gc'] > $config['search_last_gc'])
{
// Tidy the search
$cron_type = 'tidy_search';
}
else if ($time_now - $config['session_gc'] > $config['session_last_gc'])
{
$cron_type = 'tidy_sessions';
}
if ($cron_type)
{
$template->assign_var('RUN_CRON_TASK', '<img src="' . append_sid($phpbb_root_path . 'cron.' . $phpEx, 'cron_type=' . $cron_type) . '" width="1" height="1" alt="cron" />');
}
}
$template->display('body');
garbage_collection();
exit_handler();
}
/**
* Closing the cache object and the database
* Cool function name, eh? We might want to add operations to it later
*/
function garbage_collection()
{
global $cache, $db;
// Unload cache, must be done before the DB connection if closed
if (!empty($cache))
{
$cache->unload();
}
// Close our DB connection.
if (!empty($db))
{
$db->sql_close();
}
}
/**
* Handler for exit calls in phpBB.
* This function supports hooks.
*
* Note: This function is called after the template has been outputted.
*/
function exit_handler()
{
global $phpbb_hook, $config;
if (!empty($phpbb_hook) && $phpbb_hook->call_hook(__FUNCTION__))
{
if ($phpbb_hook->hook_return(__FUNCTION__))
{
return $phpbb_hook->hook_return_result(__FUNCTION__);
}
}
// As a pre-caution... some setups display a blank page if the flush() is not there.
(ob_get_level() > 0) ? @ob_flush() : @flush();
exit;
}
/**
* Handler for init calls in phpBB. This function is called in user::setup();
* This function supports hooks.
*/
function phpbb_user_session_handler()
{
global $phpbb_hook;
if (!empty($phpbb_hook) && $phpbb_hook->call_hook(__FUNCTION__))
{
if ($phpbb_hook->hook_return(__FUNCTION__))
{
return $phpbb_hook->hook_return_result(__FUNCTION__);
}
}
return;
}
?>
Raw
ucp.php
<?php
/**
*
* @package ucp
* @version $Id$
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* @ignore
*/
define('IN_PHPBB', true);
$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
require($phpbb_root_path . 'common.' . $phpEx);
require($phpbb_root_path . 'includes/functions_user.' . $phpEx);
require($phpbb_root_path . 'includes/functions_module.' . $phpEx);
// Basic parameter data
$id = request_var('i', '');
$mode = request_var('mode', '');
if (in_array($mode, array('login', 'logout', 'confirm', 'sendpassword', 'activate')))
{
define('IN_LOGIN', true);
}
// Start session management
$user->session_begin();
$auth->acl($user->data);
$user->setup('ucp');
// Setting a variable to let the style designer know where he is...
$template->assign_var('S_IN_UCP', true);
$module = new p_master();
$default = false;
// Basic "global" modes
switch ($mode)
{
case 'activate':
$module->load('ucp', 'activate');
$module->display($user->lang['UCP_ACTIVATE']);
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
break;
case 'resend_act':
$module->load('ucp', 'resend');
$module->display($user->lang['UCP_RESEND']);
break;
case 'sendpassword':
$module->load('ucp', 'remind');
$module->display($user->lang['UCP_REMIND']);
break;
case 'register':
if ($user->data['is_registered'] || isset($_REQUEST['not_agreed']))
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
$module->load('ucp', 'register');
$module->display($user->lang['REGISTER']);
break;
case 'confirm':
$module->load('ucp', 'confirm');
break;
case 'login':
if ($user->data['is_registered'])
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
login_box(request_var('redirect', "index.$phpEx"));
break;
case 'logout':
if ($user->data['user_id'] != ANONYMOUS && isset($_GET['sid']) && !is_array($_GET['sid']) && $_GET['sid'] === $user->session_id)
{
$user->session_kill();
$user->session_begin();
$message = $user->lang['LOGOUT_REDIRECT'];
}
else
{
$message = ($user->data['user_id'] == ANONYMOUS) ? $user->lang['LOGOUT_REDIRECT'] : $user->lang['LOGOUT_FAILED'];
}
$l_redirect = (isset($_GET['redirect'])) ? $user->lang['RETURN_PAGE'] : $user->lang['RETURN_INDEX'];
$redirect = append_sid($phpbb_root_path . request_var('redirect', 'index.' . $phpEx));
meta_refresh(3, $redirect);
$message = $message . '<br /><br />' . sprintf($l_redirect, '<a href="' . $redirect . '">', '</a> ');
trigger_error($message);
break;
case 'terms':
case 'privacy':
$message = ($mode == 'terms') ? 'TERMS_OF_USE_CONTENT' : 'PRIVACY_POLICY';
$title = ($mode == 'terms') ? 'TERMS_USE' : 'PRIVACY';
if (empty($user->lang[$message]))
{
if ($user->data['is_registered'])
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
login_box();
}
$template->set_filenames(array(
'body' => 'ucp_agreement.html')
);
// Disable online list
page_header($user->lang[$title], false);
$template->assign_vars(array(
'S_AGREEMENT' => true,
'AGREEMENT_TITLE' => $user->lang[$title],
'AGREEMENT_TEXT' => sprintf($user->lang[$message], $config['sitename'], generate_board_url()),
'U_BACK' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=login'),
'L_BACK' => $user->lang['BACK_TO_LOGIN'],
));
page_footer();
break;
case 'delete_cookies':
// Delete Cookies with dynamic names (do NOT delete poll cookies)
if (confirm_box(true))
{
$set_time = time() - 31536000;
foreach ($_COOKIE as $cookie_name => $cookie_data)
{
// Only delete board cookies, no other ones...
if (strpos($cookie_name, $config['cookie_name'] . '_') !== 0)
{
continue;
}
$cookie_name = str_replace($config['cookie_name'] . '_', '', $cookie_name);
// Polls are stored as {cookie_name}_poll_{topic_id}, cookie_name_ got removed, therefore checking for poll_
if (strpos($cookie_name, 'poll_') !== 0)
{
$user->set_cookie($cookie_name, '', $set_time);
}
}
$user->set_cookie('track', '', $set_time);
$user->set_cookie('u', '', $set_time);
$user->set_cookie('k', '', $set_time);
$user->set_cookie('sid', '', $set_time);
// We destroy the session here, the user will be logged out nevertheless
$user->session_kill();
$user->session_begin();
meta_refresh(3, append_sid("{$phpbb_root_path}index.$phpEx"));
$message = $user->lang['COOKIES_DELETED'] . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a>');
trigger_error($message);
}
else
{
confirm_box(false, 'DELETE_COOKIES', '');
}
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
break;
case 'switch_perm':
$user_id = request_var('u', 0);
$sql = 'SELECT *
FROM ' . USERS_TABLE . '
WHERE user_id = ' . (int) $user_id;
$result = $db->sql_query($sql);
$user_row = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
if (!$auth->acl_get('a_switchperm') || !$user_row || $user_id == $user->data['user_id'] || !check_link_hash(request_var('hash', ''), 'switchperm'))
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
include($phpbb_root_path . 'includes/acp/auth.' . $phpEx);
$auth_admin = new auth_admin();
if (!$auth_admin->ghost_permissions($user_id, $user->data['user_id']))
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
add_log('admin', 'LOG_ACL_TRANSFER_PERMISSIONS', $user_row['username']);
$message = sprintf($user->lang['PERMISSIONS_TRANSFERRED'], $user_row['username']) . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a>');
trigger_error($message);
break;
case 'restore_perm':
if (!$user->data['user_perm_from'] || !$auth->acl_get('a_switchperm'))
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
$auth->acl_cache($user->data);
$sql = 'SELECT username
FROM ' . USERS_TABLE . '
WHERE user_id = ' . $user->data['user_perm_from'];
$result = $db->sql_query($sql);
$username = $db->sql_fetchfield('username');
$db->sql_freeresult($result);
add_log('admin', 'LOG_ACL_RESTORE_PERMISSIONS', $username);
$message = $user->lang['PERMISSIONS_RESTORED'] . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a>');
trigger_error($message);
break;
default:
$default = true;
break;
}
// We use this approach because it does not impose large code changes
if (!$default)
{
return true;
}
// Only registered users can go beyond this point
if (!$user->data['is_registered'])
{
if ($user->data['is_bot'])
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
if ($id == 'pm' && $mode == 'view' && isset($_GET['p']))
{
$redirect_url = append_sid("{$phpbb_root_path}ucp.$phpEx?i=pm&p=" . request_var('p', 0));
login_box($redirect_url, $user->lang['LOGIN_EXPLAIN_UCP']);
}
login_box('', $user->lang['LOGIN_EXPLAIN_UCP']);
}
// Instantiate module system and generate list of available modules
$module->list_modules('ucp');
// Check if the zebra module is set
if ($module->is_active('zebra', 'friends'))
{
// Output listing of friends online
$update_time = $config['load_online_time'] * 60;
$sql = $db->sql_build_query('SELECT_DISTINCT', array(
'SELECT' => 'u.user_id, u.username, u.username_clean, u.user_colour, MAX(s.session_time) as online_time, MIN(s.session_viewonline) AS viewonline',
'FROM' => array(
USERS_TABLE => 'u',
ZEBRA_TABLE => 'z'
),
'LEFT_JOIN' => array(
array(
'FROM' => array(SESSIONS_TABLE => 's'),
'ON' => 's.session_user_id = z.zebra_id'
)
),
'WHERE' => 'z.user_id = ' . $user->data['user_id'] . '
AND z.friend = 1
AND u.user_id = z.zebra_id',
'GROUP_BY' => 'z.zebra_id, u.user_id, u.username_clean, u.user_colour, u.username',
'ORDER_BY' => 'u.username_clean ASC',
));
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$which = (time() - $update_time < $row['online_time'] && ($row['viewonline'] || $auth->acl_get('u_viewonline'))) ? 'online' : 'offline';
$template->assign_block_vars("friends_{$which}", array(
'USER_ID' => $row['user_id'],
'U_PROFILE' => get_username_string('profile', $row['user_id'], $row['username'], $row['user_colour']),
'USER_COLOUR' => get_username_string('colour', $row['user_id'], $row['username'], $row['user_colour']),
'USERNAME' => get_username_string('username', $row['user_id'], $row['username'], $row['user_colour']),
'USERNAME_FULL' => get_username_string('full', $row['user_id'], $row['username'], $row['user_colour']))
);
}
$db->sql_freeresult($result);
}
// Do not display subscribed topics/forums if not allowed
if (!$config['allow_topic_notify'] && !$config['allow_forum_notify'])
{
$module->set_display('main', 'subscribed', false);
}
// Select the active module
$module->set_active($id, $mode);
// Load and execute the relevant module
$module->load_active();
// Assign data to the template engine for the list of modules
$module->assign_tpl_vars(append_sid("{$phpbb_root_path}ucp.$phpEx"));
// Generate the page, do not display/query online list
$module->display($module->get_page_title(), false);
/**
* Function for assigning a template var if the zebra module got included
*/
function _module_zebra($mode, &$module_row)
{
global $template;
$template->assign_var('S_ZEBRA_ENABLED', true);
if ($mode == 'friends')
{
$template->assign_var('S_ZEBRA_FRIENDS_ENABLED', true);
}
if ($mode == 'foes')
{
$template->assign_var('S_ZEBRA_FOES_ENABLED', true);
}
}
?>
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