global.func.php

来自「Phpcms2008 是一款基于 PHP+Mysql 架构的网站内容管理系统」· PHP 代码 · 共 489 行

<?php
function new_htmlspecialchars($string)
{
	return is_array($string) ? array_map('new_htmlspecialchars', $string) : htmlspecialchars($string, ENT_QUOTES);
}

function new_addslashes($string)
{
	if(!is_array($string)) return addslashes($string);
	foreach($string as $key => $val) $string[$key] = new_addslashes($val);
	return $string;
}

function new_stripslashes($string)
{
	if(!is_array($string)) return stripslashes($string);
	foreach($string as $key => $val) $string[$key] = new_stripslashes($val);
	return $string;
}

function filter_xss($string, $allowedtags = '', $disabledattributes = array('onabort', 'onactivate', 'onafterprint', 'onafterupdate', 'onbeforeactivate', 'onbeforecopy', 'onbeforecut', 'onbeforedeactivate', 'onbeforeeditfocus', 'onbeforepaste', 'onbeforeprint', 'onbeforeunload', 'onbeforeupdate', 'onblur', 'onbounce', 'oncellchange', 'onchange', 'onclick', 'oncontextmenu', 'oncontrolselect', 'oncopy', 'oncut', 'ondataavaible', 'ondatasetchanged', 'ondatasetcomplete', 'ondblclick', 'ondeactivate', 'ondrag', 'ondragdrop', 'ondragend', 'ondragenter', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop', 'onerror', 'onerrorupdate', 'onfilterupdate', 'onfinish', 'onfocus', 'onfocusin', 'onfocusout', 'onhelp', 'onkeydown', 'onkeypress', 'onkeyup', 'onlayoutcomplete', 'onload', 'onlosecapture', 'onmousedown', 'onmouseenter', 'onmouseleave', 'onmousemove', 'onmoveout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onmove', 'onmoveend', 'onmovestart', 'onpaste', 'onpropertychange', 'onreadystatechange', 'onreset', 'onresize', 'onresizeend', 'onresizestart', 'onrowexit', 'onrowsdelete', 'onrowsinserted', 'onscroll', 'onselect', 'onselectionchange', 'onselectstart', 'onstart', 'onstop', 'onsubmit', 'onunload'))
{
	if(is_array($string))
	{
		foreach($string as $key => $val) $string[$key] = filter_xss($val, ALLOWED_HTMLTAGS);
	}
	else
	{
		$string = preg_replace('/\s('.implode('|', $disabledattributes).').*?([\s\>])/', '\\2', preg_replace('/<(.*?)>/ie', "'<'.preg_replace(array('/javascript:[^\"\']*/i', '/(".implode('|', $disabledattributes).")[ \\t\\n]*=[ \\t\\n]*[\"\'][^\"\']*[\"\']/i', '/\s+/'), array('', '', ' '), stripslashes('\\1')) . '>'", strip_tags($string, $allowedtags)));
	}
	return $string;
}

function filter_word($data = '')
{
	global $PHPCMS;
	$filter_word = trim($PHPCMS['filter_word']);
	if(!$filter_word || (!$data && !$_GET && !$_POST)) return false;
	$filter_word = array_filter(array_map('trim', explode("\n", $filter_word)));
    if(!$filter_word) return false;
	$pattern = str_replace('\*', '.*', implode('|', array_map('preg_quote', $filter_word)));
	$data = array2string($_REQUEST);
	if($pattern && preg_match("/($pattern)/", $data, $m))
	{
		$pattern_word = $m[0];
		define('ILLEGAL_WORD', $pattern_word);
		unset($m[0]);
		$word = implode(' ', $m);
		$logdata = array(TIME, IP, $word, $pattern_word);
		$logfile = PHPCMS_ROOT.'data/filterlog/'.date('Ym', TIME).'.csv';
		$fp = fopen($logfile, 'a');
		fputcsv($fp, $logdata);
		fclose($fp);
		return true;
	}
	return false;
}

function format_textarea($string)
{
	return nl2br(str_replace(' ', '&nbsp;', htmlspecialchars($string)));
}

function format_js($string, $isjs = 1)
{
	$string = addslashes(str_replace(array("\r", "\n"), array('', ''), $string));
	return $isjs ? 'document.write("'.$string.'");' : $string;
}

if(!function_exists('file_put_contents'))
{
	define('FILE_APPEND', 8);
	function file_put_contents($file, $data, $append = '')
	{
		$mode = $append == '' ? 'wb' : 'ab';
		$fp = @fopen($file, $mode) or exit("Can not open file $file !");
		flock($fp, LOCK_EX);
		$len = @fwrite($fp, $data);
		flock($fp, LOCK_UN);
		@fclose($fp);
		return $len;
	}
}

if(!function_exists('http_build_query'))
{
    function http_build_query($data, $prefix = null, $sep = '', $key = '')
	{
        $ret = array();
		foreach((array)$data as $k => $v)
		{
			$k = urlencode($k);
			if(is_int($k) && $prefix != null)
			{
				$k = $prefix.$k;
			}
			if(!empty($key)) {
				$k = $key."[".$k."]";
			}
			if(is_array($v) || is_object($v))
			{
				array_push($ret,http_build_query($v,"",$sep,$k));
			}
			else
			{
				array_push($ret,$k."=".urlencode($v));
			}
		}
        if(empty($sep))
		{
            $sep = ini_get("arg_separator.output");
        }
        return implode($sep, $ret);
    }
}

if(!function_exists('image_type_to_extension'))
{
    function image_type_to_extension($type, $dot = true)
    {
        $e = array ( 1 => 'gif', 'jpeg', 'png', 'swf', 'psd', 'bmp' ,'tiff', 'tiff', 'jpc', 'jp2', 'jpf', 'jb2', 'swc', 'aiff', 'wbmp', 'xbm');
        $type = intval($type);
        if (!$type)
		{
            trigger_error( 'File Type is null...', E_USER_NOTICE );
            return null;
        }
        if(!isset($e[$type]))
		{
            trigger_error( 'Image type is wrong...', E_USER_NOTICE );
            return null;
        }
        return ($dot ? '.' : '') . $e[$type];
    }
}

if(!function_exists('array_intersect_key'))
{
	function array_intersect_key($isec, $keys)
	{
		$argc = func_num_args();
		if ($argc > 2)
		{
			for ($i = 1; !empty($isec) && $i < $argc; $i++)
			{
				$arr = func_get_arg($i);
				foreach (array_keys($isec) as $key)
				{
					if (!isset($arr[$key]))
					{
						unset($isec[$key]);
					}
				}
			}
			return $isec;
		}
		else
		{
			$res = array();
			foreach (array_keys($isec) as $key)
			{
				if (isset($keys[$key]))
				{
					$res[$key] = $isec[$key];
				}
			}
			return $res;
		}
	}
}

if(!function_exists('json_encode'))
{
	function json_encode($string)
	{
		require_once 'json.class.php';
		$json = new json();
		return $json->encode($string);
	}
}

if(!function_exists('json_decode'))
{
	function json_decode($string,$type = 1)
	{
		require_once 'json.class.php';
		$json = new json();
		return $json->decode($string,$type);
	}
}

if(!function_exists('iconv'))
{
	function iconv($in_charset, $out_charset, $str)
	{
		if(function_exists('mb_convert_encoding'))
		{
			return mb_convert_encoding($str, $out_charset, $in_charset);
		}
		else
		{

			require_once 'iconv.func.php';
			$in_charset = strtoupper($in_charset);
			$out_charset = strtoupper($out_charset);
			if($in_charset == 'UTF-8' && ($out_charset == 'GBK' || $out_charset == 'GB2312'))
			{
				return utf8_to_gbk($str);
			}
			if(($in_charset == 'GBK' || $in_charset == 'GB2312') && $out_charset == 'UTF-8')
			{
				return gbk_to_utf8($str);
			}
			return $str;
		}
	}
}

function str_charset($in_charset, $out_charset, $str_or_arr)
{
	if(is_array($str_or_arr))
	{
		foreach($str_or_arr as $k=>$v)
		{
			$str_or_arr[$k] = str_charset($in_charset, $out_charset, $v);
		}
	}
	else
	{
		$str_or_arr = iconv($in_charset, $out_charset, $str_or_arr);
	}
	return $str_or_arr;
}

function stripstr($str)
{
	return str_replace(array('..', "\n", "\r"), array('', '', ''), $str);
}

if(!function_exists('fputcsv'))
{
	function fputcsv(&$fp, $array, $delimiter = ',', $enclosure = '"')
	{
		$data = $enclosure.implode($enclosure.$delimiter.$enclosure, $array).$enclosure."\n";
		return fwrite($fp, $data);
	}
}

function random($length, $chars = '0123456789')
{
	$hash = '';
	$max = strlen($chars) - 1;
	for($i = 0; $i < $length; $i++)
	{
		$hash .= $chars[mt_rand(0, $max)];
	}
	return $hash;
}

function set_cookie($var, $value = '', $time = 0)
{
	$time = $time > 0 ? $time : ($value == '' ? PHP_TIME - 3600 : 0);
	$s = $_SERVER['SERVER_PORT'] == '443' ? 1 : 0;
	$var = COOKIE_PRE.$var;
	$_COOKIE[$var] = $value;
	if(is_array($value))
	{
		foreach($value as $k=>$v)
		{
			setcookie($var.'['.$k.']', $v, $time, COOKIE_PATH, COOKIE_DOMAIN, $s);
		}
	}
	else
	{
		setcookie($var, $value, $time, COOKIE_PATH, COOKIE_DOMAIN, $s);
	}
}

function get_cookie($var)
{
	$var = COOKIE_PRE.$var;
	return isset($_COOKIE[$var]) ? $_COOKIE[$var] : false;
}

function content_set($contentid, $field, $data)
{
	return @file_put_contents(content_file($contentid, $field), $data);
}

function content_get($contentid, $field)
{
	return @file_get_contents(content_file($contentid, $field));
}

function content_del($contentid, $field)
{
	return @unlink(content_file($contentid, $field));
}

function content_file($contentid, $field)
{
	$id = str_pad($contentid, 4, '0', STR_PAD_LEFT);
	return CONTENT_ROOT.$field.'/'.substr($id, 0, 2).'/'.substr($id, 2, 2).'/'.$contentid.'.txt';
}

function content_init($field)
{
	@set_time_limit(300);
	@mkdir(CONTENT_ROOT.$field, 0777);
	for($i=1; $i<=9999; $i++)
	{
		$id = str_pad($i, 4, '0', STR_PAD_LEFT);
		$dir1 = CONTENT_ROOT.$field.'/'.substr($id, 0, 2);
		$dir2 = $dir1.'/'.substr($id, 2, 2);
		@mkdir($dir1, 0777);
		@mkdir($dir2, 0777);
	}
	return true;
}

function menu($parentid, $code = '')
{
	global $db, $_userid, $_roleid, $_groupid;
	$code = str_replace('"', '\"', $code);
	$where = $parentid == 99 ? "AND userid=$_userid" : '';
	$menus = $db->select("SELECT * FROM `".DB_PRE."menu` WHERE `parentid`='$parentid' $where ORDER BY `listorder`,`menuid`", 'menuid');
	if($code)
	{
		foreach($menus as $m)
		{
			extract($m);
			if(($roleids && defined('IN_ADMIN') && !check_in($_roleid, $roleids)) || ($groupids && !defined('IN_ADMIN') && !check_in($_groupid, $groupids))) continue;
			eval("\$menu .= \"$code\";");
		}
		$menus = $menu;
	}
	return $menus;
}

function url($url, $isabs = 0)
{
	if(strpos($url, '://') !== FALSE || $url[0] == '?') return $url;
	if($isabs || defined('SHOWJS'))
	{
		$url = strpos($url, PHPCMS_PATH) === 0 ? SITE_URL.substr($url, strlen(PHPCMS_PATH)) : SITE_URL.$url;
	}
	else
	{
		$url = strpos($url, PHPCMS_PATH) === 0 ? $url : PHPCMS_PATH.$url;
	}
	return $url;
}

function is_ie()
{
	$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
	if((strpos($useragent, 'opera') !== false) || (strpos($useragent, 'konqueror') !== false)) return false;
	if(strpos($useragent, 'msie ') !== false) return true;
	return false;
}

function is_websearch()
{
	if(!defined('IS_WEBSEARCH'))
	{
		$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
		$browsers = 'msie|netscape|opera|konqueror|mozilla';
		$spiders = 'bot|spider|google|isaac|surveybot|baiduspider|yahoo|sohu-search|yisou|3721|qihoo|daqi|ia_archiver|p.arthur|fast-webcrawler|java|microsoft-atl-native|turnitinbot|webgather|sleipnir|msn';
		if(preg_match("/($browsers)/", $_SERVER['HTTP_USER_AGENT']))
		{
			define('IS_WEBSEARCH', FALSE);
		}
		elseif(preg_match("/($spiders)/", $_SERVER['HTTP_USER_AGENT']))
		{
			define('IS_WEBSEARCH', TRUE);
		}
		else
		{
			define('IS_WEBSEARCH', FALSE);
		}
	}
	return IS_WEBSEARCH;
}

function is_date($ymd, $sep='-')
{
	if(empty($ymd)) return FALSE;
	list($year, $month, $day) = explode($sep, $ymd);
	return checkdate($month, $day, $year);
}

function is_email($email)
{
	return strlen($email) > 6 && preg_match("/^[\w\-\.]+@[\w\-\.]+(\.\w+)+$/", $email);
}

function str_exists($haystack, $needle)
{
	return !(strpos($haystack, $needle) === FALSE);
}

function file_down($filepath, $filename = '')
{
	if(!$filename) $filename = basename($filepath);
	if(is_ie()) $filename = rawurlencode($filename);
	$filetype = fileext($filename);
	$filesize = sprintf("%u", filesize($filepath));
	if(ob_get_length() !== false) @ob_end_clean();
	header('Pragma: public');
	header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT');
	header('Cache-Control: no-store, no-cache, must-revalidate');
	header('Cache-Control: pre-check=0, post-check=0, max-age=0');
	header('Content-Transfer-Encoding: binary');
	header('Content-Encoding: none');
	header('Content-type: '.$filetype);
	header('Content-Disposition: attachment; filename="'.$filename.'"');
	header('Content-length: '.$filesize);
	readfile($filepath);
	exit;
}

function fileext($filename)
{
	return strtolower(trim(substr(strrchr($filename, '.'), 1, 10)));
}

function implodeids($array, $s = ',')
{
	if(empty($array)) return '';
	return is_array($array) ? implode($s, $array) : $array;
}

function check_submit($var)
{
	if(empty($GLOBALS[$var])) return false;
	if(empty($_SERVER['HTTP_REFERER'])) return true;
	return strpos($_SERVER['HTTP_REFERER'], DOMAIN) === 7;
}

function check_in($id, $ids = '', $s = ',')
{
	if(!$ids) return false;
	$ids = explode($s, $ids);
	return is_array($id) ? array_intersect($id, $ids) : in_array($id, $ids);
}

function ip()
{
	if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown'))
	{
		$ip = getenv('HTTP_CLIENT_IP');
	}
	elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown'))
	{
		$ip = getenv('HTTP_X_FORWARDED_FOR');
	}
	elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown'))
	{
		$ip = getenv('REMOTE_ADDR');
	}
	elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown'))
	{
		$ip = $_SERVER['REMOTE_ADDR'];
	}
	return preg_match("/[\d\.]{7,15}/", $ip, $matches) ? $matches[0] : 'unknown';
}

function ip_banned($ip)
{
	$ips = cache_read('ipbanned.php');
	if(!$ips) return false;
	foreach($ips as $k=>$v)
	{
		if($v < TIME) continue;
		if($ip == $k) return true;
		if(strpos($k, '*'))
		{
			$k = str_replace(array('.', '*'), array('\.', '[0-9]{1,3}'), $k);
		    if(preg_match("/$v/", $ip)) return true;
		}
	}
	return false;
}

function str_cut($string, $length, $dot = '...')
{
	$strlen = strlen($string);
	if($strlen <= $length) return $string;
	$string = str_replace(array('&nbsp;', '&amp;', '&quot;', '&#039;', '&ldquo;', '&rdquo;', '&mdash;', '&lt;', '&gt;', '&middot;', '&hellip;'), array(' ', '&', '"', "'", '鈥