2 files changed, 181 insertions, 0 deletions
diff --git a/plugins/OpenID/extlib/README b/plugins/OpenID/extlib/README
new file mode 100644
index 000000000..1fe80d79b
--- /dev/null
+++ b/plugins/OpenID/extlib/README
@@ -0,0 +1,6 @@
+team-extension.php
+    Support for Launchpad's OpenID Teams extension
+    Maintainer: Canonical
+    Source: https://code.edge.launchpad.net/wordpress-teams-integration
+            r27 2010-04-27
+    License: AGPLv3
diff --git a/plugins/OpenID/extlib/teams-extension.php b/plugins/OpenID/extlib/teams-extension.php
new file mode 100644
index 000000000..451f2fb19
--- /dev/null
+++ b/plugins/OpenID/extlib/teams-extension.php
@@ -0,0 +1,175 @@
+<?php
+/*
+ *  Wordpress Teams plugin
+ *  Copyright (C) 2009-2010 Canonical Ltd.
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Provides an example OpenID extension to query user team/group membership
+ *
+ * This code is based on code supplied with the openid library for simple
+ * registration data.
+ */
+
+/**
+ * Require the Message implementation.
+ */
+require_once 'Auth/OpenID/Message.php';
+require_once 'Auth/OpenID/Extension.php';
+
+/**
+ * The team/group extension base class
+ */
+class Auth_OpenID_TeamsExtension extends Auth_OpenID_Extension {
+  var $ns_uri = 'http://ns.launchpad.net/2007/openid-teams';
+  var $ns_alias = 'lp';
+  var $request_field = 'query_membership';
+  var $response_field = 'is_member';
+  
+  /**
+   * Get the string arguments that should be added to an OpenID
+   * message for this extension.
+   */
+  function getExtensionArgs() {
+    $args = array();
+
+    if ($this->_teams) {
+      $args[$this->request_field] = implode(',', $this->_teams);
+    }
+
+    return $args;
+  }
+
+  /**
+   * Add the arguments from this extension to the provided message.
+   *
+   * Returns the message with the extension arguments added.
+   */
+  function toMessage(&$message) {
+    if ($message->namespaces->addAlias($this->ns_uri, $this->ns_alias) === null) {
+      if ($message->namespaces->getAlias($this->ns_uri) != $this->ns_alias) {
+        return null;
+      }
+    }
+
+    $message->updateArgs($this->ns_uri, $this->getExtensionArgs());
+    return $message;
+  }
+  
+  /**
+   * Extract the team/group namespace URI from the given OpenID message.
+   * Handles OpenID 1 and 2.
+   *
+   * $message: The OpenID message from which to parse team/group data.
+   * This may be a request or response message.
+   *
+   * Returns the sreg namespace URI for the supplied message.
+   *
+   * @access private
+   */
+  function _getExtensionNS(&$message) {
+    $alias = null;
+    $found_ns_uri = null;
+
+    // See if there exists an alias for the namespace
+    $alias = $message->namespaces->getAlias($this->ns_uri);
+    
+    if ($alias !== null) {
+      $found_ns_uri = $this->ns_uri;
+    }
+
+    if ($alias === null) {
+      // There is no alias for this extension, so try to add one.
+      $found_ns_uri = Auth_OpenID_TYPE_1_0;
+      
+      if ($message->namespaces->addAlias($this->ns_uri, $this->ns_alias) === null) {
+        // An alias for the string 'lp' already exists, but
+        // it's defined for something other than team/group membership
+        return null;
+      }
+    }
+    
+    return $found_ns_uri;
+  }
+}
+
+/**
+ * The team/group extension request class
+ */
+class Auth_OpenID_TeamsRequest extends Auth_OpenID_TeamsExtension {
+  function __init($teams) {
+    if (!is_array($teams)) {
+      if (!empty($teams)) {
+        $teams = explode(',', $teams);
+      } else {
+        $teams = Array();
+      }
+    }
+    
+    $this->_teams = $teams;
+  }
+  
+  function Auth_OpenID_TeamsRequest($teams) {
+    $this->__init($teams);
+  }
+}
+
+/**
+ * The team/group extension response class
+ */
+class Auth_OpenID_TeamsResponse extends Auth_OpenID_TeamsExtension {
+  var $_teams = array();
+  
+  function __init(&$resp, $signed_only=true) {
+    $this->ns_uri = $this->_getExtensionNS($resp->message);
+    
+    if ($signed_only) {
+      $args = $resp->getSignedNS($this->ns_uri);
+    } else {
+      $args = $resp->message->getArgs($this->ns_uri);
+    }
+    
+    if ($args === null) {
+      return null;
+    }
+    
+    // An OpenID 2.0 response will handle the namespaces
+    if (in_array($this->response_field, array_keys($args)) && !empty($args[$this->response_field])) {
+      $this->_teams = explode(',', $args[$this->response_field]);
+    }
+    
+    // Piggybacking on a 1.x request, however, won't so the field name will
+    // be different
+    elseif (in_array($this->ns_alias.'.'.$this->response_field, array_keys($args)) && !empty($args[$this->ns_alias.'.'.$this->response_field])) {
+      $this->_teams = explode(',', $args[$this->ns_alias.'.'.$this->response_field]);
+    }
+  }
+  
+  function Auth_OpenID_TeamsResponse(&$resp, $signed_only=true) {
+    $this->__init($resp, $signed_only);
+  }
+  
+  /**
+   * Get the array of teams the user is a member of
+   *
+   * @return array
+   */
+  function getTeams() {
+    return $this->_teams;
+  }
+}
+
+?>