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Source code for file /openid/Services/Yadis/XRIRes.php

Documentation is available at XRIRes.php

  1. <?php
  2.  
  3. require_once 'Services/Yadis/XRDS.php';
  4. require_once 'Services/Yadis/XRI.php';
  5.  
  6. class Services_Yadis_ProxyResolver {
  7.     function Services_Yadis_ProxyResolver(&$fetcher, $proxy_url = null)
  8.     {
  9.         global $DEFAULT_PROXY;
  10.  
  11.         $this->fetcher =& $fetcher;
  12.         $this->proxy_url = $proxy_url;
  13.         if (!$this->proxy_url) {
  14.             $this->proxy_url = $DEFAULT_PROXY;
  15.         }
  16.     }
  17.  
  18.     function queryURL($xri, $service_type = null)
  19.     {
  20.         // trim off the xri:// prefix
  21.         $qxri = substr(Services_Yadis_toURINormal($xri), 6);
  22.         $hxri = $this->proxy_url . $qxri;
  23.         $args = array(
  24.                       '_xrd_r' => 'application/xrds+xml'
  25.                       );
  26.  
  27.         if ($service_type) {
  28.             $args['_xrd_t'] = $service_type;
  29.         } else {
  30.             // Don't perform service endpoint selection.
  31.             $args['_xrd_r'] .= ';sep=false';
  32.         }
  33.  
  34.         $query = Services_Yadis_XRIAppendArgs($hxri, $args);
  35.         return $query;
  36.     }
  37.  
  38.     function query($xri, $service_types, $filters = array())
  39.     {
  40.         $services = array();
  41.         $canonicalID = null;
  42.         foreach ($service_types as $service_type) {
  43.             $url = $this->queryURL($xri, $service_type);
  44.             $response = $this->fetcher->get($url);
  45.             if ($response->status != 200) {
  46.                 continue;
  47.             }
  48.             $xrds = Services_Yadis_XRDS::parseXRDS($response->body);
  49.             if (!$xrds) {
  50.                 continue;
  51.             }
  52.             $canonicalID = Services_Yadis_getCanonicalID($xri,
  53.                                                          $xrds);
  54.  
  55.             if ($canonicalID === false) {
  56.                 return null;
  57.             }
  58.  
  59.             $some_services = $xrds->services($filters);
  60.             $services = array_merge($services, $some_services);
  61.             // TODO:
  62.             //  * If we do get hits for multiple service_types, we're
  63.             //    almost certainly going to have duplicated service
  64.             //    entries and broken priority ordering.
  65.         }
  66.         return array($canonicalID, $services);
  67.     }
  68. }
  69.  
  70. ?>
Documentation generated on Mon, 05 Mar 2007 21:33:14 +0000 by phpDocumentor 1.3.1