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<?php
/**
* TUrlManager class file
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link https://github.com/pradosoft/prado
* @copyright Copyright © 2005-2016 The PRADO Group
* @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
* @version $Id $
* @package System.Web
*/
/**
* TUrlManager class
*
* TUrlManager is the base class for managing URLs that can be
* recognized by PRADO applications. It provides the default implementation
* for parsing and constructing URLs.
*
* Derived classes may override {@link constructUrl} and {@link parseUrl}
* to provide customized URL schemes.
*
* By default, {@link THttpRequest} uses TUrlManager as its URL manager.
* If you want to use your customized URL manager, load your manager class
* as an application module and set {@link THttpRequest::setUrlManager THttpRequest.UrlManager}
* with the ID of your URL manager module.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id $
* @package System.Web
* @since 3.0.6
*/
class TUrlManager extends TModule
{
/**
* Constructs a URL that can be recognized by PRADO.
*
* This method provides the actual implementation used by {@link THttpRequest::constructUrl}.
* Override this method if you want to provide your own way of URL formatting.
* If you do so, you may also need to override {@link parseUrl} so that the URL can be properly parsed.
*
* The URL is constructed as the following format:
* /entryscript.php?serviceID=serviceParameter&get1=value1&...
* If {@link THttpRequest::setUrlFormat THttpRequest.UrlFormat} is 'Path',
* the following format is used instead:
* /entryscript.php/serviceID/serviceParameter/get1,value1/get2,value2...
* If {@link THttpRequest::setUrlFormat THttpRequest.UrlFormat} is 'HiddenPath',
* then entryscript.php will be hidden and the following format is used instead:
* /serviceID/serviceParameter/get1,value1/get2,value2...
* In order to use the 'HiddenPath' format you need proper url rewrite configuration;
* here's an example for Apache's .htaccess:
* <cdde>
* Options +FollowSymLinks
* RewriteEngine On
* RewriteCond %{REQUEST_FILENAME} !-d
* RewriteCond %{REQUEST_FILENAME} !-f
* RewriteRule ^(.*)$ index.php/$1 [L]
* </code>
* @param string service ID
* @param string service parameter
* @param array GET parameters, null if not provided
* @param boolean whether to encode the ampersand in URL
* @param boolean whether to encode the GET parameters (their names and values)
* @return string URL
* @see parseUrl
*/
public function constructUrl($serviceID,$serviceParam,$getItems,$encodeAmpersand,$encodeGetItems)
{
$url=$serviceID.'='.urlencode($serviceParam);
$amp=$encodeAmpersand?'&':'&';
$request=$this->getRequest();
if(is_array($getItems) || $getItems instanceof Traversable)
{
if($encodeGetItems)
{
foreach($getItems as $name=>$value)
{
if(is_array($value))
{
$name=urlencode($name.'[]');
foreach($value as $v)
$url.=$amp.$name.'='.urlencode($v);
}
else
$url.=$amp.urlencode($name).'='.urlencode($value);
}
}
else
{
foreach($getItems as $name=>$value)
{
if(is_array($value))
{
foreach($value as $v)
$url.=$amp.$name.'[]='.$v;
}
else
$url.=$amp.$name.'='.$value;
}
}
}
switch($request->getUrlFormat())
{
case THttpRequestUrlFormat::Path:
return $request->getApplicationUrl().'/'.strtr($url,array($amp=>'/','?'=>'/','='=>$request->getUrlParamSeparator()));
case THttpRequestUrlFormat::HiddenPath:
return rtrim(dirname($request->getApplicationUrl()), '/').'/'.strtr($url,array($amp=>'/','?'=>'/','='=>$request->getUrlParamSeparator()));
default:
return $request->getApplicationUrl().'?'.$url;
}
}
/**
* Parses the request URL and returns an array of input parameters.
* This method is automatically invoked by {@link THttpRequest} when
* handling a user request.
*
* In general, this method should parse the path info part of the requesting URL
* and generate an array of name-value pairs according to some scheme.
* The current implementation deals with both 'Get' and 'Path' URL formats.
*
* You may override this method to support customized URL format.
* @return array list of input parameters, indexed by parameter names
* @see constructUrl
*/
public function parseUrl()
{
$request=$this->getRequest();
$pathInfo=trim($request->getPathInfo(),'/');
if(($request->getUrlFormat()===THttpRequestUrlFormat::Path ||
$request->getUrlFormat()===THttpRequestUrlFormat::HiddenPath) &&
$pathInfo!=='')
{
$separator=$request->getUrlParamSeparator();
$paths=explode('/',$pathInfo);
$getVariables=array();
foreach($paths as $path)
{
if(($path=trim($path))!=='')
{
if(($pos=strpos($path,$separator))!==false)
{
$name=substr($path,0,$pos);
$value=substr($path,$pos+1);
if(($pos=strpos($name,'[]'))!==false)
$getVariables[substr($name,0,$pos)][]=$value;
else
$getVariables[$name]=$value;
}
else
$getVariables[$path]='';
}
}
return $getVariables;
}
else
return array();
}
}
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