OpenID library installed

[living-lab-site.git] / application / libraries / Openid.php

diff --git a/application/libraries/Openid.php b/application/libraries/Openid.php
new file mode 100644 (file)
index 0000000..6fa043d
--- /dev/null
+++ b/application/libraries/Openid.php
@@ -0,0 +1,211 @@
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+* OpenID Library
+*
+* @package    CodeIgniter
+* @author     bardelot
+* @see        http://cakebaker.42dh.com/2007/01/11/cakephp-and-openid/
+*             & http://openidenabled.com/php-openid/
+*/
+
+class Openid{
+
+  var $storePath = 'tmp';
+  
+  var $sreg_enable = false;
+  var $sreg_required = null;
+  var $sreg_optional = null;
+  var $sreg_policy = null;
+  
+  var $pape_enable = false;
+  var $pape_policy_uris = null;
+  
+  var $request_to;
+  var $trust_root;
+  var $ext_args;
+    
+    function Openid()
+    {        
+    $CI =& get_instance();    
+        $CI->config->load('openid');
+        $this->storePath = $CI->config->item('openid_storepath');
+            
+        session_start();    
+        $this->_doIncludes();
+            
+    log_message('debug', "OpenID Class Initialized");
+    }
+    
+    function _doIncludes()
+    {
+    set_include_path(dirname(__FILE__) . PATH_SEPARATOR . get_include_path());
+
+    require_once "Auth/OpenID/Consumer.php";
+    require_once "Auth/OpenID/FileStore.php";
+    require_once "Auth/OpenID/SReg.php";
+    require_once "Auth/OpenID/PAPE.php";
+  }
+    
+    function set_sreg($enable, $required = null, $optional = null, $policy = null)
+    {
+    $this->sreg_enable = $enable;
+    $this->sreg_required = $required;
+    $this->sreg_optional = $optional;
+    $this->sreg_policy = $policy;
+    }
+    
+    function set_pape($enable, $policy_uris = null)
+    {
+    $this->pape_enable = $enable;
+    $this->pape_policy_uris = $policy_uris;
+    }
+    
+    function set_request_to($uri)
+    {
+    $this->request_to = $uri;
+    }
+    
+    function set_trust_root($trust_root)
+    {
+    $this->trust_root = $trust_root;
+    }
+    
+    function set_args($args)
+    {
+    $this->ext_args = $args;
+    }
+    
+    function _set_message($error, $msg, $val = '', $sub = '%s')
+    {
+      $CI =& get_instance();
+        $CI->lang->load('openid', 'english');
+        echo str_replace($sub, $val, $CI->lang->line($msg));
+        
+        if ($error)
+        {
+      exit;
+    }
+    }
+    
+    function authenticate($openId)
+    {
+    $consumer = $this->_getConsumer();
+        $authRequest = $consumer->begin($openId);
+            
+        // No auth request means we can't begin OpenID.
+    if (!$authRequest)
+    {
+        $this->_set_message(true,'openid_auth_error');
+    }
+      
+    if ($this->sreg_enable)
+    {
+        $sreg_request = Auth_OpenID_SRegRequest::build($this->sreg_required, $this->sreg_optional, $this->sreg_policy);
+
+        if ($sreg_request)
+        {
+            $authRequest->addExtension($sreg_request);
+        }
+        else
+        {
+            $this->_set_message(true,'openid_sreg_failed');
+        }
+    }
+      
+    if ($this->pape_enable)
+    {
+        $pape_request = new Auth_OpenID_PAPE_Request($this->pape_policy_uris);
+        
+        if ($pape_request)
+        {
+            $authRequest->addExtension($pape_request);
+        }
+        else
+        {
+            $this->_set_message(true,'openid_pape_failed');
+        }
+    }
+            
+        if ($this->ext_args != null)
+        {
+                foreach ($this->ext_args as $extensionArgument)
+                {
+            if (count($extensionArgument) == 3)
+            {
+                 $authRequest->addExtensionArg($extensionArgument[0], $extensionArgument[1], $extensionArgument[2]);
+            }
+                }
+    }
+            
+        // Redirect the user to the OpenID server for authentication.
+    // Store the token for this authentication so we can verify the
+    // response.
+
+    // For OpenID 1, send a redirect.  For OpenID 2, use a Javascript
+    // form to send a POST request to the server.
+    if ($authRequest->shouldSendRedirect())
+    {
+        $redirect_url = $authRequest->redirectURL($this->trust_root, $this->request_to);
+
+        // If the redirect URL can't be built, display an error
+        // message.
+        if (Auth_OpenID::isFailure($redirect_url))
+        {
+            $this->_set_message(true,'openid_redirect_failed', $redirect_url->message);
+        }
+        else
+        {
+            // Send redirect.
+            header("Location: ".$redirect_url);
+        }
+    }
+    else
+    {
+        // Generate form markup and render it.
+        $form_id = 'openid_message';
+        $form_html = $authRequest->formMarkup($this->trust_root, $this->request_to, false, array('id' => $form_id));
+
+        // Display an error if the form markup couldn't be generated;
+        // otherwise, render the HTML.
+        if (Auth_OpenID::isFailure($form_html))
+        {
+            $this->_set_message(true,'openid_redirect_failed', $form_html->message);
+        }
+        else
+        {
+            $page_contents = array(
+               "<html><head><title>",
+               "OpenID transaction in progress",
+               "</title></head>",
+               "<body onload='document.getElementById(\"".$form_id."\").submit()'>",
+               $form_html,
+               "</body></html>");
+
+            print implode("\n", $page_contents);
+        }
+    }
+
+        }
+        
+        function getResponse()
+        {
+      $consumer = $this->_getConsumer();
+      $response = $consumer->complete($this->request_to);
+            
+      return $response;
+        }
+        
+        function _getConsumer()
+        {
+            if (!file_exists($this->storePath) && !mkdir($this->storePath))
+            {
+          $this->_set_message(true,'openid_storepath_failed', $this->storePath);
+            }
+
+            $store = new Auth_OpenID_FileStore($this->storePath);
+            $consumer = new Auth_OpenID_Consumer($store);
+            
+            return $consumer;
+        }
+}
+?>