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-rw-r--r--extlib/Auth/Yadis/XRIRes.php72
1 files changed, 72 insertions, 0 deletions
diff --git a/extlib/Auth/Yadis/XRIRes.php b/extlib/Auth/Yadis/XRIRes.php
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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);
+ }
+}
+
+?>