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<?php
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/**
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* TUrlManager class file
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.pradosoft.com/
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* @copyright Copyright © 2005-2008 PradoSoft
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* @license http://www.pradosoft.com/license/
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* @version $Id $
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* @package System.Web
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*/
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/**
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* TUrlManager class
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*
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* TUrlManager is the base class for managing URLs that can be
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* recognized by PRADO applications. It provides the default implementation
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* for parsing and constructing URLs.
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*
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* Derived classes may override {@link constructUrl} and {@link parseUrl}
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* to provide customized URL schemes.
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*
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* By default, {@link THttpRequest} uses TUrlManager as its URL manager.
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* If you want to use your customized URL manager, load your manager class
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* as an application module and set {@link THttpRequest::setUrlManager THttpRequest.UrlManager}
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* with the ID of your URL manager module.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @version $Id $
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* @package System.Web
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* @since 3.0.6
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*/
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class TUrlManager extends TModule
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{
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/**
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* Constructs a URL that can be recognized by PRADO.
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*
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* This method provides the actual implementation used by {@link THttpRequest::constructUrl}.
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* Override this method if you want to provide your own way of URL formatting.
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* If you do so, you may also need to override {@link parseUrl} so that the URL can be properly parsed.
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*
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* The URL is constructed as the following format:
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* /entryscript.php?serviceID=serviceParameter&get1=value1&...
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* If {@link THttpRequest::setUrlFormat THttpRequest.UrlFormat} is 'Path',
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* the following format is used instead:
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* /entryscript.php/serviceID/serviceParameter/get1,value1/get2,value2...
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* @param string service ID
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* @param string service parameter
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* @param array GET parameters, null if not provided
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* @param boolean whether to encode the ampersand in URL
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* @param boolean whether to encode the GET parameters (their names and values)
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* @return string URL
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* @see parseUrl
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*/
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public function constructUrl($serviceID,$serviceParam,$getItems,$encodeAmpersand,$encodeGetItems)
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{
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$url=$serviceID.'='.urlencode($serviceParam);
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$amp=$encodeAmpersand?'&':'&';
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$request=$this->getRequest();
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if(is_array($getItems) || $getItems instanceof Traversable)
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{
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if($encodeGetItems)
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{
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foreach($getItems as $name=>$value)
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{
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if(is_array($value))
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{
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$name=urlencode($name.'[]');
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foreach($value as $v)
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$url.=$amp.$name.'='.urlencode($v);
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}
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else
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$url.=$amp.urlencode($name).'='.urlencode($value);
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}
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}
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else
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{
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foreach($getItems as $name=>$value)
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{
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if(is_array($value))
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{
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foreach($value as $v)
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$url.=$amp.$name.'[]='.$v;
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}
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else
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$url.=$amp.$name.'='.$value;
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}
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}
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}
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if($request->getUrlFormat()===THttpRequestUrlFormat::Path)
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return $request->getApplicationUrl().'/'.strtr($url,array($amp=>'/','?'=>'/','='=>$request->getUrlParamSeparator()));
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else
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return $request->getApplicationUrl().'?'.$url;
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}
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/**
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* Parses the request URL and returns an array of input parameters.
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* This method is automatically invoked by {@link THttpRequest} when
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* handling a user request.
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*
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* In general, this method should parse the path info part of the requesting URL
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* and generate an array of name-value pairs according to some scheme.
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* The current implementation deals with both 'Get' and 'Path' URL formats.
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*
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* You may override this method to support customized URL format.
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* @return array list of input parameters, indexed by parameter names
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* @see constructUrl
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*/
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public function parseUrl()
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{
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$request=$this->getRequest();
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$pathInfo=trim($request->getPathInfo(),'/');
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if($request->getUrlFormat()===THttpRequestUrlFormat::Path && $pathInfo!=='')
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{
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$separator=$request->getUrlParamSeparator();
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$paths=explode('/',$pathInfo);
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$getVariables=array();
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foreach($paths as $path)
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{
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if(($path=trim($path))!=='')
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{
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if(($pos=strpos($path,$separator))!==false)
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{
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$name=substr($path,0,$pos);
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$value=substr($path,$pos+1);
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if(($pos=strpos($name,'[]'))!==false)
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$getVariables[substr($name,0,$pos)][]=$value;
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else
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$getVariables[$name]=$value;
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}
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else
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$getVariables[$path]='';
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}
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}
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return $getVariables;
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}
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else
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return array();
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}
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}
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