lib/AkResponse.php

   1 <?php
   2 /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
   3
   4 // +----------------------------------------------------------------------+
   5 // | Akelos Framework - http://www.akelos.org                             |
   6 // +----------------------------------------------------------------------+
   7 // | Copyright (c) 2002-2006, Akelos Media, S.L.  & Bermi Ferrer Martinez |
   8 // | Released under the GNU Lesser General Public License, see LICENSE.txt|
   9 // +----------------------------------------------------------------------+
  10
  11 if(!class_exists('AkResponse')){
  12
  13 /**
  14  * @package ActionController
  15  * @subpackage Response
  16  * @author Bermi Ferrer <bermi a.t akelos c.om>
  17  * @copyright Copyright (c) 2002-2006, Akelos Media, S.L. http://www.akelos.org
  18  * @license GNU Lesser General Public License <http://www.gnu.org/copyleft/lesser.html>
  19  */
  20 class AkResponse extends AkObject
  21 {
  22     var $_resutl_stack = array();
  23     var $_headers = array();
  24     var $_headers_sent = array();
  25     var $body = '';
  26     var $__Logger;
  27
  28     function set($data, $id = null)
  29     {
  30         if(isset($id)){
  31             $this->_resutl_stack[$id] = $data;
  32         }else{
  33             $this->_resutl_stack[] = $data;
  34         }
  35     }
  36
  37     function &get($id)
  38     {
  39         if(isset($this->_resutl_stack[$id])){
  40             return $this->_resutl_stack[$id];
  41         }
  42         return false;
  43     }
  44
  45     function getAll()
  46     {
  47         return $this->_resutl_stack;
  48     }
  49
  50     function addHeader()
  51     {
  52         $args = func_get_args();
  53         if(!empty($args[1])){
  54             $this->_headers[$args[0]] = $args[1];
  55         }elseif (!empty($args[0]) && is_array($args[0])){
  56             $this->_headers = array_merge($this->_headers,$args[0]);
  57         }elseif (!empty($args[0])){
  58             $this->_headers[] = $args[0];
  59         }
  60     }
  61
  62     function outputResults()
  63     {
  64         $this->sendHeaders();
  65         if(is_object($this->body) && method_exists($this->body,'stream')){
  66             AK_LOG_EVENTS && !empty($this->_Logger) ? $this->_Logger->message("Sending response as stream") : null;
  67             $this->body->stream();
  68         }else{
  69             AK_LOG_EVENTS && !empty($this->_Logger) ? $this->_Logger->message("Sending response") : null;
  70             echo $this->body;
  71         }
  72     }
  73
  74     function sendHeaders($terminate_if_redirected = true)
  75     {
  76         /**
  77          * Fix a problem with IE 6.0 on opening downloaded files:
  78          * If Cache-Control: IE removes the file it just downloaded from
  79          * its cache immediately
  80          * after it displays the "open/save" dialog, which means that if you
  81          * hit "open" the file isn't there anymore when the application that
  82          * is called for handling the download is run, so let's workaround that
  83          */
  84         if(isset($this->_headers['Cache-Control']) && $this->_headers['Cache-Control'] == 'no-cache'){
  85             $this->_headers['Cache-Control'] = 'private';
  86         }
  87         if(!empty($this->_headers['Status'])){
  88             $status = $this->_getStatusHeader($this->_headers['Status']);
  89             array_unshift($this->_headers,  $status ? $status : (strstr('HTTP/1.1 '.$this->_headers['Status'],'HTTP') ? $this->_headers['Status'] : 'HTTP/1.1 '.$this->_headers['Status']));
  90             unset($this->_headers['Status']);
  91         }
  92
  93         if(!empty($this->_headers) && is_array($this->_headers)){
  94             $this->addHeader('Connection: close');
  95             foreach ($this->_headers as $k=>$v){
  96                 $header = trim((!is_numeric($k) ? $k.': ' : '').$v);
  97                 $this->_headers_sent[] = $header;
  98                 if(strtolower(substr($header,0,9)) == 'location:'){
  99                     $_redirected = true;
 100                     if(AK_DESKTOP){
 101                         $javascript_redirection = '<title>'.Ak::t('Loading...').'</title><script type="text/javascript">location = "'.substr($header,9).'";</script>';
 102                         continue;
 103                     }
 104                 }
 105                 if(strtolower(substr($header,0,13)) == 'content-type:'){
 106                     $_has_content_type = true;
 107                 }
 108                 AK_LOG_EVENTS && !empty($this->_Logger) ? $this->_Logger->message("Sending header:  $header") : null;
 109                 header($header);
 110             }
 111         }
 112
 113         if(empty($_has_content_type) && defined('AK_CHARSET') && (empty($_redirected) || (!empty($_redirected) && !empty($javascript_redirection)))){
 114             header('Content-Type: text/html; charset='.AK_CHARSET);
 115             $this->_headers_sent[] = 'Content-Type: text/html; charset='.AK_CHARSET;
 116         }
 117
 118         if(!empty($javascript_redirection)){
 119             echo $javascript_redirection;
 120         }
 121
 122         $terminate_if_redirected ? (!empty($_redirected) ? exit() : null) : null;
 123     }
 124
 125     function deleteHeader($header)
 126     {
 127         unset($this->_headers[$header]);
 128     }
 129
 130     /**
 131     * Redirects to given $url, after turning off $this->autoRender.
 132     *
 133     * @param unknown_type $url
 134     */
 135     function redirect ($url)
 136     {
 137         $this->autoRender = false;
 138         if(!empty($this->_headers['Status']) && substr($this->_headers['Status'],0,3) != '301'){
 139             $this->_headers['Status'] = 302;
 140         }
 141         $this->addHeader('Location', $url);
 142         $this->sendHeaders();
 143     }
 144
 145
 146     function _getStatusHeader($status_code)
 147     {
 148         $status_codes = array (
 149         100 => "HTTP/1.1 100 Continue",
 150         101 => "HTTP/1.1 101 Switching Protocols",
 151         200 => "HTTP/1.1 200 OK",
 152         201 => "HTTP/1.1 201 Created",
 153         202 => "HTTP/1.1 202 Accepted",
 154         203 => "HTTP/1.1 203 Non-Authoritative Information",
 155         204 => "HTTP/1.1 204 No Content",
 156         205 => "HTTP/1.1 205 Reset Content",
 157         206 => "HTTP/1.1 206 Partial Content",
 158         300 => "HTTP/1.1 300 Multiple Choices",
 159         301 => "HTTP/1.1 301 Moved Permanently",
 160         302 => "HTTP/1.1 302 Found",
 161         303 => "HTTP/1.1 303 See Other",
 162         304 => "HTTP/1.1 304 Not Modified",
 163         305 => "HTTP/1.1 305 Use Proxy",
 164         307 => "HTTP/1.1 307 Temporary Redirect",
 165         400 => "HTTP/1.1 400 Bad Request",
 166         401 => "HTTP/1.1 401 Unauthorized",
 167         402 => "HTTP/1.1 402 Payment Required",
 168         403 => "HTTP/1.1 403 Forbidden",
 169         404 => "HTTP/1.1 404 Not Found",
 170         405 => "HTTP/1.1 405 Method Not Allowed",
 171         406 => "HTTP/1.1 406 Not Acceptable",
 172         407 => "HTTP/1.1 407 Proxy Authentication Required",
 173         408 => "HTTP/1.1 408 Request Time-out",
 174         409 => "HTTP/1.1 409 Conflict",
 175         410 => "HTTP/1.1 410 Gone",
 176         411 => "HTTP/1.1 411 Length Required",
 177         412 => "HTTP/1.1 412 Precondition Failed",
 178         413 => "HTTP/1.1 413 Request Entity Too Large",
 179         414 => "HTTP/1.1 414 Request-URI Too Large",
 180         415 => "HTTP/1.1 415 Unsupported Media Type",
 181         416 => "HTTP/1.1 416 Requested range not satisfiable",
 182         417 => "HTTP/1.1 417 Expectation Failed",
 183         500 => "HTTP/1.1 500 Internal Server Error",
 184         501 => "HTTP/1.1 501 Not Implemented",
 185         502 => "HTTP/1.1 502 Bad Gateway",
 186         503 => "HTTP/1.1 503 Service Unavailable",
 187         504 => "HTTP/1.1 504 Gateway Time-out"
 188         );
 189         return empty($status_codes[$status_code]) ? false : $status_codes[$status_code];
 190     }
 191 }
 192
 193
 194 function &AkResponse()
 195 {
 196     $null = null;
 197     $AkResponse =& Ak::singleton('AkResponse', $null);
 198     AK_LOG_EVENTS && empty($AkResponse->_Logger) ? ($AkResponse->_Logger =& Ak::getLogger()) : null;
 199     return $AkResponse;
 200 }
 201
 202 }
 203
 204 ?>