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修改了上一个版本的一些错误，第一次提交
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joyqi
2013-07-17 13:13:57 +08:00
commit 55379c90df
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var/Typecho/Request.php
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<?php
/**
* Typecho Blog Platform
*
* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
* @license GNU General Public License 2.0
* @version $Id$
*/
/**
* 服务器请求处理类
*
* TODO getSiteUrl
* @package Request
*/
class Typecho_Request
{
/**
* 内部参数
*
* @access private
* @var array
*/
private $_params = array();
/**
* 路径信息
*
* @access private
* @var string
*/
private $_pathInfo = NULL;
/**
* 服务端参数
*
* @access private
* @var array
*/
private $_server = array();
/**
* 客户端ip地址
*
* @access private
* @var string
*/
private $_ip = NULL;
/**
* 客户端字符串
*
* @access private
* @var string
*/
private $_agent = NULL;
/**
* 来源页
*
* @access private
* @var string
*/
private $_referer = NULL;
/**
* 单例句柄
*
* @access private
* @var Typecho_Request
*/
private static $_instance = NULL;
/**
* 当前过滤器
*
* @access private
* @var array
*/
private $_filter = array();
/**
* 支持的过滤器列表
*
* @access private
* @var string
*/
private static $_supportFilters = array(
'int' => 'intval',
'integer' => 'intval',
'search' => array('Typecho_Common', 'filterSearchQuery'),
'xss' => array('Typecho_Common', 'removeXSS'),
'url' => array('Typecho_Common', 'safeUrl')
);
/**
* 获取单例句柄
*
* @access public
* @return Typecho_Request
*/
public static function getInstance()
{
if (NULL === self::$_instance) {
self::$_instance = new Typecho_Request();
}
return self::$_instance;
}
/**
* 应用过滤器
*
* @access private
* @param mixed $value
* @return void
*/
private function _applyFilter($value)
{
if ($this->_filter) {
foreach ($this->_filter as $filter) {
$value = is_array($value) ? array_map($filter, $value) :
call_user_func($filter, $value);
}
}
$this->_filter = array();
return $value;
}
/**
* 设置过滤器
*
* @access public
* @param mixed $filter 过滤器名称
* @return Typecho_Widget_Request
*/
public function filter()
{
$filters = func_get_args();
foreach ($filters as $filter) {
$this->_filter[] = is_string($filter) && isset(self::$_supportFilters[$filter])
? self::$_supportFilters[$filter] : $filter;
}
return $this;
}
/**
* 获取实际传递参数(magic)
*
* @access public
* @param string $key 指定参数
* @return void
*/
public function __get($key)
{
return $this->get($key);
}
/**
* 判断参数是否存在
*
* @access public
* @param string $key 指定参数
* @return void
*/
public function __isset($key)
{
return isset($_GET[$key])
|| isset($_POST[$key])
|| isset($_COOKIE[$key])
|| $this->isSetParam($key);
}
/**
* 获取实际传递参数
*
* @access public
* @param string $key 指定参数
* @param mixed $default 默认参数 (default: NULL)
* @return void
*/
public function get($key, $default = NULL)
{
$value = $default;
switch (true) {
case isset($this->_params[$key]):
$value = $this->_params[$key];
break;
case isset($_GET[$key]):
$value = $_GET[$key];
break;
case isset($_POST[$key]):
$value = $_POST[$key];
break;
case isset($_COOKIE[$key]):
$value = $_COOKIE[$key];
break;
default:
$value = $default;
break;
}
$value = is_array($value) || strlen($value) > 0 ? $value : $default;
return $this->_filter ? $this->_applyFilter($value) : $value;
}
/**
* 从参数列表指定的值中获取http传递参数
*
* @access public
* @param mixed $parameter 指定的参数
* @return array
*/
public function from($params)
{
$result = array();
$args = is_array($params) ? $params : func_get_args();
foreach ($args as $arg) {
$result[$arg] = $this->get($arg);
}
return $result;
}
/**
* 获取指定的http传递参数
*
* @access public
* @param string $key 指定的参数
* @param mixed $default 默认的参数
* @return mixed
*/
public function getParam($key, $default = NULL)
{
$value = isset($this->_params[$key]) ? $this->_params[$key] : $default;
$value = is_array($value) || strlen($value) > 0 ? $value : $default;
return $this->_filter ? $this->_applyFilter($value) : $value;
}
/**
* 设置http传递参数
*
* @access public
* @param string $name 指定的参数
* @param mixed $value 参数值
* @return void
*/
public function setParam($name, $value)
{
$this->_params[$name] = $value;
}
/**
* 删除参数
*
* @access public
* @param string $name 指定的参数
* @return void
*/
public function unSetParam($name)
{
unset($this->_params[$name]);
}
/**
* 参数是否存在
*
* @access public
* @param string $key 指定的参数
* @return boolean
*/
public function isSetParam($key)
{
return isset($this->_params[$key]);
}
/**
* 设置多个参数
*
* @access public
* @param mixed $params 参数列表
* @return void
*/
public function setParams($params)
{
//处理字符串
if (!is_array($params)) {
parse_str($params, $out);
$params = $out;
}
$this->_params = array_merge($this->_params, $params);
}
/**
* 根据当前uri构造指定参数的uri
*
* @access public
* @param mixed $parameter 指定的参数
* @return string
*/
public function makeUriByRequest($parameter = NULL)
{
/** 初始化地址 */
$scheme = $this->isSecure() ? 'https' : 'http';
$requestUri = strtolower($scheme) . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
$parts = parse_url($requestUri);
/** 初始化参数 */
if (is_string($parameter)) {
parse_str($parameter, $args);
} else if (is_array($parameter)) {
$args = $parameter;
} else {
return $requestUri;
}
/** 构造query */
if (isset($parts['query'])) {
parse_str($parts['query'], $currentArgs);
$args = array_merge($currentArgs, $args);
}
$parts['query'] = http_build_query($args);
/** Typecho_Common */
require_once 'Typecho/Common.php';
/** 返回地址 */
return Typecho_Common::buildUrl($parts);
}
/**
* 获取当前pathinfo
*
* @access public
* @param string $inputEncoding 输入编码
* @param string $outputEncoding 输出编码
* @return string
*/
public function getPathInfo($inputEncoding = NULL, $outputEncoding = NULL)
{
/** 缓存信息 */
if (NULL !== $this->_pathInfo) {
return $this->_pathInfo;
}
//参考Zend Framework对pahtinfo的处理, 更好的兼容性
$pathInfo = NULL;
//处理requestUri
$requestUri = NULL;
if (isset($_SERVER['HTTP_X_REWRITE_URL'])) { // check this first so IIS will catch
$requestUri = $_SERVER['HTTP_X_REWRITE_URL'];
} elseif (
// IIS7 with URL Rewrite: make sure we get the unencoded url (double slash problem)
isset($_SERVER['IIS_WasUrlRewritten'])
&& $_SERVER['IIS_WasUrlRewritten'] == '1'
&& isset($_SERVER['UNENCODED_URL'])
&& $_SERVER['UNENCODED_URL'] != ''
) {
$requestUri = $_SERVER['UNENCODED_URL'];
} elseif (isset($_SERVER['REQUEST_URI'])) {
$requestUri = $_SERVER['REQUEST_URI'];
if (isset($_SERVER['HTTP_HOST']) && strstr($requestUri, $_SERVER['HTTP_HOST'])) {
$parts = @parse_url($requestUri);
if (false !== $parts) {
$requestUri = (empty($parts['path']) ? '' : $parts['path'])
. ((empty($parts['query'])) ? '' : '?' . $parts['query']);
}
}
} elseif (isset($_SERVER['ORIG_PATH_INFO'])) { // IIS 5.0, PHP as CGI
$requestUri = $_SERVER['ORIG_PATH_INFO'];
if (!empty($_SERVER['QUERY_STRING'])) {
$requestUri .= '?' . $_SERVER['QUERY_STRING'];
}
} else {
return $this->_pathInfo = '/';
}
//处理baseUrl
$filename = (isset($_SERVER['SCRIPT_FILENAME'])) ? basename($_SERVER['SCRIPT_FILENAME']) : '';
if (isset($_SERVER['SCRIPT_NAME']) && basename($_SERVER['SCRIPT_NAME']) === $filename) {
$baseUrl = $_SERVER['SCRIPT_NAME'];
} elseif (isset($_SERVER['PHP_SELF']) && basename($_SERVER['PHP_SELF']) === $filename) {
$baseUrl = $_SERVER['PHP_SELF'];
} elseif (isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $filename) {
$baseUrl = $_SERVER['ORIG_SCRIPT_NAME']; // 1and1 shared hosting compatibility
} else {
// Backtrack up the script_filename to find the portion matching
// php_self
$path = isset($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : '';
$file = isset($_SERVER['SCRIPT_FILENAME']) ? $_SERVER['SCRIPT_FILENAME'] : '';
$segs = explode('/', trim($file, '/'));
$segs = array_reverse($segs);
$index = 0;
$last = count($segs);
$baseUrl = '';
do {
$seg = $segs[$index];
$baseUrl = '/' . $seg . $baseUrl;
++$index;
} while (($last > $index) && (false !== ($pos = strpos($path, $baseUrl))) && (0 != $pos));
}
// Does the baseUrl have anything in common with the request_uri?
$finalBaseUrl = NULL;
if (0 === strpos($requestUri, $baseUrl)) {
// full $baseUrl matches
$finalBaseUrl = $baseUrl;
} else if (0 === strpos($requestUri, dirname($baseUrl))) {
// directory portion of $baseUrl matches
$finalBaseUrl = rtrim(dirname($baseUrl), '/');
} else if (!strpos($requestUri, basename($baseUrl))) {
// no match whatsoever; set it blank
$finalBaseUrl = '';
} else if ((strlen($requestUri) >= strlen($baseUrl))
&& ((false !== ($pos = strpos($requestUri, $baseUrl))) && ($pos !== 0)))
{
// If using mod_rewrite or ISAPI_Rewrite strip the script filename
// out of baseUrl. $pos !== 0 makes sure it is not matching a value
// from PATH_INFO or QUERY_STRING
$baseUrl = substr($requestUri, 0, $pos + strlen($baseUrl));
}
$finalBaseUrl = (NULL === $finalBaseUrl) ? rtrim($baseUrl, '/') : $finalBaseUrl;
// Remove the query string from REQUEST_URI
if ($pos = strpos($requestUri, '?')) {
$requestUri = substr($requestUri, 0, $pos);
}
if ((NULL !== $finalBaseUrl)
&& (false === ($pathInfo = substr($requestUri, strlen($finalBaseUrl)))))
{
// If substr() returns false then PATH_INFO is set to an empty string
$pathInfo = '/';
} elseif (NULL === $finalBaseUrl) {
$pathInfo = $requestUri;
}
if (!empty($pathInfo)) {
//针对iis的utf8编码做强制转换
//参考http://docs.moodle.org/ja/%E5%A4%9A%E8%A8%80%E8%AA%9E%E5%AF%BE%E5%BF%9C%EF%BC%9A%E3%82%B5%E3%83%BC%E3%83%90%E3%81%AE%E8%A8%AD%E5%AE%9A
if (!empty($inputEncoding) && !empty($outputEncoding) &&
(stripos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false
|| stripos($_SERVER['SERVER_SOFTWARE'], 'ExpressionDevServer') !== false)) {
if (function_exists('mb_convert_encoding')) {
$pathInfo = mb_convert_encoding($pathInfo, $outputEncoding, $inputEncoding);
} else if (function_exists('iconv')) {
$pathInfo = iconv($pathInfoEncoding, $outputEncoding, $pathInfo);
}
}
} else {
$pathInfo = '/';
}
// fix issue 456
return ($this->_pathInfo = '/' . ltrim(urldecode($pathInfo), '/'));
}
/**
* 设置服务端参数
*
* @access public
* @param string $name 参数名称
* @param mixed $value 参数值
* @return void
*/
public function setServer($name, $value = NULL)
{
if (NULL == $value) {
if (isset($_SERVER[$name])) {
$value = $_SERVER[$name];
} else if (isset($_ENV[$name])) {
$value = $_ENV[$name];
}
}
$this->_server[$name] = $value;
}
/**
* 获取环境变量
*
* @access public
* @param string $name 获取环境变量名
* @return string
*/
public function getServer($name)
{
if (!isset($this->_server[$name])) {
$this->setServer($name);
}
return $this->_server[$name];
}
/**
* 设置ip地址
*
* @access public
* @param unknown $ip
* @return unknown
*/
public function setIp($ip = NULL)
{
switch (true) {
case NULL !== $this->getServer('HTTP_X_FORWARDED_FOR'):
list($this->_ip) = array_map('trim', explode(',', $this->getServer('HTTP_X_FORWARDED_FOR')));
return;
case NULL !== $this->getServer('HTTP_CLIENT_IP'):
$this->_ip = $this->getServer('HTTP_CLIENT_IP');
return;
case NULL !== $this->getServer('REMOTE_ADDR'):
$this->_ip = $this->getServer('REMOTE_ADDR');
return;
default:
break;
}
$this->_ip = 'unknown';
}
/**
* 获取ip地址
*
* @access public
* @return string
*/
public function getIp()
{
if (NULL === $this->_ip) {
$this->setIp();
}
return $this->_ip;
}
/**
* 设置客户端
*
* @access public
* @param string $agent 客户端字符串
* @return void
*/
public function setAgent($agent = NULL)
{
$this->_agent = (NULL === $agent) ? $this->getServer('HTTP_USER_AGENT') : $agent;
}
/**
* 获取客户端
*
* @access public
* @return void
*/
public function getAgent()
{
if (NULL === $this->_agent) {
$this->setAgent();
}
return $this->_agent;
}
/**
* 设置来源页
*
* @access public
* @param string $referer 客户端字符串
* @return void
*/
public function setReferer($referer = NULL)
{
$this->_referer = (NULL === $referer) ? $this->getServer('HTTP_REFERER') : $referer;
}
/**
* 获取客户端
*
* @access public
* @return void
*/
public function getReferer()
{
if (NULL === $this->_referer) {
$this->setReferer();
}
return $this->_referer;
}
/**
* 判断是否为get方法
*
* @access public
* @return boolean
*/
public function isGet()
{
return 'GET' == $this->getServer('REQUEST_METHOD');
}
/**
* 判断是否为post方法
*
* @access public
* @return boolean
*/
public function isPost()
{
return 'POST' == $this->getServer('REQUEST_METHOD');
}
/**
* 判断是否为put方法
*
* @access public
* @return boolean
*/
public function isPut()
{
return 'PUT' == $this->getServer('REQUEST_METHOD');
}
/**
* 判断是否为https
*
* @access public
* @return boolean
*/
public function isSecure()
{
return 'on' == $this->getServer('HTTPS') || 443 == $this->getServer('SERVER_PORT');
}
/**
* 判断是否为ajax
*
* @access public
* @return boolean
*/
public function isAjax()
{
return 'XMLHttpRequest' == $this->getServer('HTTP_X_REQUESTED_WITH');
}
/**
* 判断是否为flash
*
* @access public
* @return boolean
*/
public function isFlash()
{
return 'Shockwave Flash' == $this->getServer('USER_AGENT');
}
/**
* 判断输入是否满足要求
*
* @access public
* @param mixed $query 条件
* @return boolean
*/
public function is($query)
{
$validated = false;
/** 解析串 */
if (is_string($query)) {
parse_str($query, $params);
} else if (is_array($query)) {
$params = $query;
}
/** 验证串 */
if ($params) {
$validated = true;
foreach ($params as $key => $val) {
if (empty($val)) {
$validated = $this->__isSet($key);
} else {
$validated = ($this->get($key) == $val);
}
if (!$validated) {
break;
}
}
}
return $validated;
}
}