Url.php
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<?php
class LtUrl
{
public $configHandle;
public $routingTable;
public $baseUrl;
public function __construct()
{
if (! $this->configHandle instanceof LtConfig)
{
if (class_exists("LtObjectUtil", false))
{
$this->configHandle = LtObjectUtil::singleton("LtConfig");
}
else
{
$this->configHandle = new LtConfig;
}
}
}
public function init()
{
$this->routingTable = $this->configHandle->get("router.routing_table");
if (empty($this->routingTable))
{
$this->routingTable = array('pattern' => ":module/:action/*",
'default' => array('module' => 'default', 'action' => 'index'),
'reqs' => array('module' => '[a-zA-Z0-9\.\-_]+',
'action' => '[a-zA-Z0-9\.\-_]+'
),
'varprefix' => ':',
'delimiter' => '/',
'postfix' => '',
'protocol' => 'PATH_INFO', // REWRITE STANDARD
);
}
$protocol = strtoupper($this->routingTable['protocol']);
if ('REWRITE' == $protocol)
{
$this->baseUrl = pathinfo($_SERVER['SCRIPT_NAME'], PATHINFO_DIRNAME) . '/';
}
else if ('STANDARD' == $protocol)
{
$this->baseUrl = $_SERVER['PHP_SELF'];
}
else
{
$this->baseUrl = '';
}
}
public function generate($module, $action, $args = array())
{
$args = array_merge(array('module' => $module, 'action' => $action), $args);
$url = '';
// $url = $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://';
// $url .= $_SERVER['HTTP_HOST'];
// $url .= $_SERVER['SERVER_PORT'] == '80' ? '' : ':'.$_SERVER['SERVER_PORT'];
$url .= $this->baseUrl;
$url .= $this->reverseMatchingRoutingTable($args);
return $url;
}
/**
* 将变量反向匹配路由表, 返回匹配后的url
*
* @param array $params
* @return string
*/
public function reverseMatchingRoutingTable($args)
{
$ret = $this->routingTable['pattern'];
$default = $this->routingTable['default'];
$reqs = $this->routingTable['reqs'];
$delimiter = $this->routingTable['delimiter'];
$varprefix = $this->routingTable['varprefix'];
$postfix = $this->routingTable['postfix'];
$protocol = strtoupper($this->routingTable['protocol']);
if ('STANDARD' == $protocol)
{
return '?' . http_build_query($args, '', '&');
}
$pattern = explode($delimiter, trim($this->routingTable['pattern'], $delimiter));
foreach($pattern as $k => $v)
{
if ($v[0] == $varprefix)
{
// 变量
$varname = substr($v, 1);
// 匹配变量
if (isset($args[$varname]))
{
$regex = "/^{$reqs[$varname]}\$/i";
if (preg_match($regex, $args[$varname]))
{
$ret = str_replace($v, $args[$varname], $ret);
unset($args[$varname]);
}
}
else if (isset($default[$varname]))
{
$ret = str_replace($v, $default[$varname], $ret);
}
}
else if ($v[0] == '*')
{
// 通配符
$tmp = '';
foreach($args as $key => $value)
{
if (!isset($default[$key]))
{
$tmp .= $key . $delimiter . rawurlencode($value) . $delimiter;
}
}
$tmp = rtrim($tmp, $delimiter);
$ret = str_replace($v, $tmp, $ret);
$ret = rtrim($ret, $delimiter);
}
else
{
// 静态
}
}
if ('REWRITE' == $protocol)
{
$ret = $ret . $postfix;
}
else if ('PATH_INFO' == $protocol)
{
$ret = $_SERVER['SCRIPT_NAME'] . $delimiter . $ret . $postfix;
}
else
{
$ret = $ret . $postfix;
}
return $ret;
}
}