From 14c9366aac697e87499c5748b36fa7bf5e6cd320 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@prodromou.name>
Date: Fri, 22 Aug 2008 09:17:14 -0400
Subject: include external libs in a subdir to make install easier

darcs-hash:20080822131714-84dde-6978424ded2ed1041a65142a25560654ac717fcd.gz
---
 extlib/Auth/Yadis/XRIRes.php | 72 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 extlib/Auth/Yadis/XRIRes.php

(limited to 'extlib/Auth/Yadis/XRIRes.php')

diff --git a/extlib/Auth/Yadis/XRIRes.php b/extlib/Auth/Yadis/XRIRes.php
new file mode 100644
index 000000000..4e8e8d037
--- /dev/null
+++ b/extlib/Auth/Yadis/XRIRes.php
@@ -0,0 +1,72 @@
+<?php
+
+/**
+ * Code for using a proxy XRI resolver.
+ */
+
+require_once 'Auth/Yadis/XRDS.php';
+require_once 'Auth/Yadis/XRI.php';
+
+class Auth_Yadis_ProxyResolver {
+    function Auth_Yadis_ProxyResolver(&$fetcher, $proxy_url = null)
+    {
+        $this->fetcher =& $fetcher;
+        $this->proxy_url = $proxy_url;
+        if (!$this->proxy_url) {
+            $this->proxy_url = Auth_Yadis_getDefaultProxy();
+        }
+    }
+
+    function queryURL($xri, $service_type = null)
+    {
+        // trim off the xri:// prefix
+        $qxri = substr(Auth_Yadis_toURINormal($xri), 6);
+        $hxri = $this->proxy_url . $qxri;
+        $args = array(
+                      '_xrd_r' => 'application/xrds+xml'
+                      );
+
+        if ($service_type) {
+            $args['_xrd_t'] = $service_type;
+        } else {
+            // Don't perform service endpoint selection.
+            $args['_xrd_r'] .= ';sep=false';
+        }
+
+        $query = Auth_Yadis_XRIAppendArgs($hxri, $args);
+        return $query;
+    }
+
+    function query($xri, $service_types, $filters = array())
+    {
+        $services = array();
+        $canonicalID = null;
+        foreach ($service_types as $service_type) {
+            $url = $this->queryURL($xri, $service_type);
+            $response = $this->fetcher->get($url);
+            if ($response->status != 200 and $response->status != 206) {
+                continue;
+            }
+            $xrds = Auth_Yadis_XRDS::parseXRDS($response->body);
+            if (!$xrds) {
+                continue;
+            }
+            $canonicalID = Auth_Yadis_getCanonicalID($xri,
+                                                         $xrds);
+
+            if ($canonicalID === false) {
+                return null;
+            }
+
+            $some_services = $xrds->services($filters);
+            $services = array_merge($services, $some_services);
+            // TODO:
+            //  * If we do get hits for multiple service_types, we're
+            //    almost certainly going to have duplicated service
+            //    entries and broken priority ordering.
+        }
+        return array($canonicalID, $services);
+    }
+}
+
+?>
-- 
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