Refs #3115. Moved oauth_lib to oauth_api.

git-svn-id: http://code.elgg.org/elgg/trunk@8715 36083f99-b078-4883-b0ff-0f9b5a30f544

43 files changed, 7436 insertions, 0 deletions

diff --git a/mod/oauth_api/manifest.xml b/mod/oauth_api/manifest.xml
new file mode 100644
index 000000000..1d743fdab
--- /dev/null
+++ b/mod/oauth_api/manifest.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<plugin_manifest xmlns="http://www.elgg.org/plugin_manifest/1.8">
+	<name>OAuth API</name>
+	<author>Core developers</author>
+	<version>1.8</version>
+	<category>bundled</category>
+	<description>Provides OAuth libraries and API support.</description>
+	<website>http://www.elgg.org/</website>
+	<copyright>See COPYRIGHT.txt</copyright>
+	<license>GNU Public License version 2</license>
+	<requires>
+		<type>elgg_version</type>
+		<version>2010040201</version>
+	</requires>
+</plugin_manifest>
diff --git a/mod/oauth_api/start.php b/mod/oauth_api/start.php
new file mode 100644
index 000000000..d087a13d1
--- /dev/null
+++ b/mod/oauth_api/start.php
@@ -0,0 +1,24 @@
+<?php
+/**
+ * OAuth libs
+ *
+ * @todo Pull these out into an elgg_oauth lib and use elgg_register_library().
+ * @package oauth_api
+ */
+
+// require all vendor libraries
+$plugin_path = dirname(__FILE__) . '/vendors/oauth/library';
+require_once "$plugin_path/OAuthDiscovery.php";
+require_once "$plugin_path/OAuthRequest.php";
+require_once "$plugin_path/OAuthRequester.php";
+require_once "$plugin_path/OAuthRequestVerifier.php";
+require_once "$plugin_path/OAuthServer.php";
+
+require_once "$plugin_path/body/OAuthBodyMultipartFormdata.php";
+
+require_once "$plugin_path/store/OAuthStoreAbstract.class.php";
+
+require_once "$plugin_path/signature_method/OAuthSignatureMethod_HMAC_SHA1.php";
+require_once "$plugin_path/signature_method/OAuthSignatureMethod_MD5.php";
+require_once "$plugin_path/signature_method/OAuthSignatureMethod_PLAINTEXT.php";
+require_once "$plugin_path/signature_method/OAuthSignatureMethod_RSA_SHA1.php";
diff --git a/mod/oauth_api/vendors/oauth/LICENSE b/mod/oauth_api/vendors/oauth/LICENSE
new file mode 100644
index 000000000..f64bcd50f
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/LICENSE
@@ -0,0 +1,21 @@
+The MIT License
+
+Copyright (c) 2007-2008 Mediamatic Lab
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/example/server/INSTALL b/mod/oauth_api/vendors/oauth/example/server/INSTALL
new file mode 100644
index 000000000..249c85e9d
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/INSTALL
@@ -0,0 +1,53 @@
+In this example I assume that oauth-php lives in /home/john/src/oauth-php
+
+
+1) Create a virtual host and set the DB_DSN VARIABLE to the DSN of your (mysql) database.
+
+Example
+<VirtualHost *>
+        ServerAdmin admin@localhost
+        ServerName hello.local
+        DocumentRoot /home/john/src/oauth-php/example/server/www
+
+        UseCanonicalName Off
+        ServerSignature On
+
+        SetEnv DB_DSN mysql://foo:bar@localhost/oauth_example_server_db
+
+        <Directory "home/john/src/oauth-php/example/server/www">
+                Options Indexes FollowSymLinks MultiViews
+                AllowOverride None
+                Order allow,deny
+                Allow from all
+
+                <IfModule mod_php5.c>
+                  php_value magic_quotes_gpc                0
+                  php_value register_globals                0
+                  php_value session.auto_start              0
+                </IfModule>
+
+        </Directory>
+</VirtualHost>
+
+
+2) Create the database structure for the server:
+
+# mysql -u foo -p bar -h localhost < /home/john/src/oauth-php/library/store/mysql/mysql.sql
+
+
+
+3) Download and install smarty into the smarty/core/smarty directory:
+
+# cd /home/john/src/oauth-php/example/server/core
+# wget 'http://www.smarty.net/do_download.php?download_file=Smarty-2.6.19.tar.gz'
+# tar zxf Smarty-2.6.19.tar.gz
+# mv Smarty-2.6.19 smarty
+
+
+4) That's it! Point your browser to 
+
+  http://hello.local/
+
+To get started.
+
+Arjan Scherpenisse <arjan@mediamatic.nl>, July 2008
diff --git a/mod/oauth_api/vendors/oauth/example/server/core/init.php b/mod/oauth_api/vendors/oauth/example/server/core/init.php
new file mode 100644
index 000000000..e5bb9de35
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/core/init.php
@@ -0,0 +1,127 @@
+<?php
+
+/**
+ * oauth-php: Example OAuth server
+ *
+ * Global initialization file for the server, defines some helper
+ * functions, required includes, and starts the session.
+ *
+ * @author Arjan Scherpenisse <arjan@scherpenisse.net>
+ *
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+/*
+ * Simple 'user management'
+ */
+define ('USERNAME', 'sysadmin');
+define ('PASSWORD', 'sysadmin');
+
+
+/*
+ * Always announce XRDS OAuth discovery
+ */
+header('X-XRDS-Location: http://' . $_SERVER['SERVER_NAME'] . '/services.xrds');
+
+
+/*
+ * Initialize the database connection
+ */
+$info = parse_url(getenv('DB_DSN'));
+($GLOBALS['db_conn'] = mysql_connect($info['host'], $info['user'], $info['pass'])) || die(mysql_error());
+mysql_select_db(basename($info['path']), $GLOBALS['db_conn']) || die(mysql_error());
+unset($info);
+
+
+require_once '../../../library/OAuthServer.php';
+
+/*
+ * Initialize OAuth store
+ */
+require_once '../../../library/OAuthStore.php';
+OAuthStore::instance('MySQL', array('conn' => $GLOBALS['db_conn']));
+
+
+/*
+ * Session
+ */
+session_start();
+
+
+/*
+ * Template handling
+ */
+require_once 'smarty/libs/Smarty.class.php';
+function session_smarty()
+{
+	if (!isset($GLOBALS['smarty']))
+	{
+		$GLOBALS['smarty'] = new Smarty;
+		$GLOBALS['smarty']->template_dir = dirname(__FILE__) . '/templates/';
+		$GLOBALS['smarty']->compile_dir = dirname(__FILE__) . '/../cache/templates_c';
+	}
+	
+	return $GLOBALS['smarty'];
+}
+
+function assert_logged_in()
+{
+	if (empty($_SESSION['authorized']))
+	{
+		$uri = $_SERVER['REQUEST_URI'];
+		header('Location: /logon?goto=' . urlencode($uri));
+	}
+}
+
+function assert_request_vars()
+{
+	foreach(func_get_args() as $a)
+	{
+		if (!isset($_REQUEST[$a]))
+		{
+			header('HTTP/1.1 400 Bad Request');
+			echo 'Bad request.';
+			exit;
+		}
+	}
+}
+
+function assert_request_vars_all()
+{
+	foreach($_REQUEST as $row)
+	{
+		foreach(func_get_args() as $a)
+		{
+			if (!isset($row[$a]))
+			{
+				header('HTTP/1.1 400 Bad Request');
+				echo 'Bad request.';
+				exit;
+			}
+		}
+	}
+}
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/example/server/core/templates/inc/footer.tpl b/mod/oauth_api/vendors/oauth/example/server/core/templates/inc/footer.tpl
new file mode 100644
index 000000000..308b1d01b
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/core/templates/inc/footer.tpl
@@ -0,0 +1,2 @@
+</body>
+</html>
diff --git a/mod/oauth_api/vendors/oauth/example/server/core/templates/inc/header.tpl b/mod/oauth_api/vendors/oauth/example/server/core/templates/inc/header.tpl
new file mode 100644
index 000000000..5046f54b0
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/core/templates/inc/header.tpl
@@ -0,0 +1,2 @@
+<html>
+    <body>
diff --git a/mod/oauth_api/vendors/oauth/example/server/core/templates/index.tpl b/mod/oauth_api/vendors/oauth/example/server/core/templates/index.tpl
new file mode 100644
index 000000000..7b065537d
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/core/templates/index.tpl
@@ -0,0 +1,13 @@
+{include file='inc/header.tpl'}
+
+<h1>OAuth server</h1>
+Go to:
+
+<ul>
+  <li><a href="/logon">Logon</a></li>
+  <li><a href="/register">Register your consumer</a></li>
+</ul>
+
+Afterwards, make an OAuth test request to <strong>http://{$smarty.server.name}/hello</strong> to test your connection.</p>
+
+{include file='inc/footer.tpl'}
diff --git a/mod/oauth_api/vendors/oauth/example/server/core/templates/logon.tpl b/mod/oauth_api/vendors/oauth/example/server/core/templates/logon.tpl
new file mode 100644
index 000000000..5ccd432b5
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/core/templates/logon.tpl
@@ -0,0 +1,21 @@
+{include file='inc/header.tpl'}
+
+<h1>Login</h1>
+
+<form method="post">
+    <input type="hidden" name="goto" value="{$smarty.request.goto}" />
+
+    <label for="username">User name</label><br />
+    <input type="text" name="username" id="username" />
+    
+    <br /><br />
+
+    <label for="password">Password</label><br />
+    <input type="text" name="password" id="password" />
+
+    <br /><br />
+    
+    <input type="submit" value="Login" />
+</form>
+
+{include file='inc/footer.tpl'}
diff --git a/mod/oauth_api/vendors/oauth/example/server/core/templates/register.tpl b/mod/oauth_api/vendors/oauth/example/server/core/templates/register.tpl
new file mode 100644
index 000000000..0e28c1584
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/core/templates/register.tpl
@@ -0,0 +1,41 @@
+{include file='inc/header.tpl'}
+
+<h1>Register server</h1>
+
+<p>Register a server which is gonna act as an identity client.</p>
+
+<form method="post">
+
+    <fieldset>
+	<legend>About You</legend>
+	
+	<p>
+	    <label for="requester_name">Your name</label><br/>
+	    <input class="text" id="requester_name"  name="requester_name" type="text" value="{$consumer.requester_name|default:$smarty.request.requester_name|escape}" />
+	</p>
+	
+	<p>
+	    <label for="requester_email">Your email address</label><br/>
+	    <input class="text" id="requester_email"  name="requester_email" type="text" value="{$consumer.requester_email|default:$smarty.request.requester_email|escape}" />
+	</p>
+    </fieldset>
+    
+    <fieldset>
+	<legend>Location Of Your Application Or Site</legend>
+	
+	<p>
+	    <label for="application_uri">URL of your application or site</label><br/>
+	    <input id="application_uri" class="text" name="application_uri" type="text" value="{$consumer.application_uri|default:$smarty.request.application_uri|escape}" />
+	</p>
+	
+	<p>
+	    <label for="callback_uri">Callback URL</label><br/>
+	    <input id="callback_uri" class="text" name="callback_uri" type="text" value="{$consumer.callback_uri|default:$smarty.request.callback_uri|escape}" />
+	</p>
+    </fieldset>
+
+    <br />
+    <input type="submit" value="Register server" />
+</form>
+
+{include file='inc/footer.tpl'}
diff --git a/mod/oauth_api/vendors/oauth/example/server/www/hello.php b/mod/oauth_api/vendors/oauth/example/server/www/hello.php
new file mode 100644
index 000000000..8cb94bb1e
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/www/hello.php
@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * oauth-php: Example OAuth server
+ *
+ * An example service, http://hostname/hello. You will only get the
+ * 'Hello, world!' string back if you have signed your request with
+ * oauth.
+ *
+ * @author Arjan Scherpenisse <arjan@scherpenisse.net>
+ *
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once '../core/init.php';
+
+$authorized = false;
+$server = new OAuthServer();
+try
+{
+	if ($server->verifyIfSigned())
+	{
+		$authorized = true;
+	}
+}
+catch (OAuthException $e)
+{
+}
+
+if (!$authorized)
+{
+	header('HTTP/1.1 401 Unauthorized');
+	header('Content-Type: text/plain');
+	
+	echo "OAuth Verification Failed: " . $e->getMessage();
+	die;
+}
+
+// From here on we are authenticated with OAuth.
+
+header('Content-type: text/plain');
+echo 'Hello, world!';
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/example/server/www/index.php b/mod/oauth_api/vendors/oauth/example/server/www/index.php
new file mode 100644
index 000000000..f5cadbe61
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/www/index.php
@@ -0,0 +1,37 @@
+<?php
+
+/**
+ * oauth-php: Example OAuth server
+ *
+ * @author Arjan Scherpenisse <arjan@scherpenisse.net>
+ *
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require '../core/init.php';
+
+$smarty = session_smarty();
+$smarty->display('index.tpl');
+
+?>
diff --git a/mod/oauth_api/vendors/oauth/example/server/www/logon.php b/mod/oauth_api/vendors/oauth/example/server/www/logon.php
new file mode 100644
index 000000000..5c937b719
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/www/logon.php
@@ -0,0 +1,55 @@
+<?php
+
+/**
+ * oauth-php: Example OAuth server
+ *
+ * Simple logon for consumer registration at this server.
+ *
+ * @author Arjan Scherpenisse <arjan@scherpenisse.net>
+ *
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once '../core/init.php';
+
+if (isset($_POST['username']) && isset($_POST['password']))
+{
+	if ($_POST['username'] == USERNAME && $_POST['password'] == PASSWORD)
+	{
+		$_SESSION['authorized'] = true;
+		if (!empty($_REQUEST['goto']))
+		{
+			header('Location: ' . $_REQUEST['goto']);
+			die;
+		}
+
+		echo "Logon succesfull.";
+		die;
+	}
+}
+
+$smarty = session_smarty();
+$smarty->display('logon.tpl');
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/example/server/www/oauth.php b/mod/oauth_api/vendors/oauth/example/server/www/oauth.php
new file mode 100644
index 000000000..e0badcc39
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/www/oauth.php
@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * oauth-php: Example OAuth server
+ *
+ * This file implements the OAuth server endpoints. The most basic
+ * implementation of an OAuth server.
+ *
+ * Call with: /oauth/request_token, /oauth/authorize, /oauth/access_token
+ *
+ * @author Arjan Scherpenisse <arjan@scherpenisse.net>
+ *
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once '../core/init.php';
+
+$server = new OAuthServer();
+
+switch($_SERVER['PATH_INFO'])
+{
+case '/request_token':
+	$server->requestToken();
+	exit;
+
+case '/access_token':
+	$server->accessToken();
+	exit;
+
+case '/authorize':
+	# logon
+
+	assert_logged_in();
+
+	try
+	{
+		$server->authorizeVerify();
+		$server->authorizeFinish(true, 1);
+	}
+	catch (OAuthException $e)
+	{
+		header('HTTP/1.1 400 Bad Request');
+		header('Content-Type: text/plain');
+		
+		echo "Failed OAuth Request: " . $e->getMessage();
+	}
+	exit;
+
+	
+default:
+	header('HTTP/1.1 500 Internal Server Error');
+	header('Content-Type: text/plain');
+	echo "Unknown request";
+}
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/example/server/www/register.php b/mod/oauth_api/vendors/oauth/example/server/www/register.php
new file mode 100644
index 000000000..c5785c2c8
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/www/register.php
@@ -0,0 +1,28 @@
+<?php
+
+require_once '../core/init.php';
+
+assert_logged_in();
+
+if ($_SERVER['REQUEST_METHOD'] == 'POST')
+{
+	try
+	{
+		$store = OAuthStore::instance();
+		$key   = $store->updateConsumer($_POST, 1, true);
+
+		$c = $store->getConsumer($key);
+		echo 'Your consumer key is: <strong>' . $c['consumer_key'] . '</strong><br />';
+		echo 'Your consumer secret is: <strong>' . $c['consumer_secret'] . '</strong><br />';
+	}
+	catch (OAuthException $e)
+	{
+		echo '<strong>Error: ' . $e->getMessage() . '</strong><br />';
+	}
+}
+		
+
+$smarty = session_smarty();
+$smarty->display('register.tpl');
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/example/server/www/services.xrds.php b/mod/oauth_api/vendors/oauth/example/server/www/services.xrds.php
new file mode 100644
index 000000000..4c50aa12b
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/example/server/www/services.xrds.php
@@ -0,0 +1,71 @@
+<?php
+
+/**
+ * oauth-php: Example OAuth server
+ *
+ * XRDS discovery for OAuth. This file helps the consumer program to
+ * discover where the OAuth endpoints for this server are.
+ *
+ * @author Arjan Scherpenisse <arjan@scherpenisse.net>
+ *
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+header('Content-Type: application/xrds+xml');
+
+$server = $_SERVER['SERVER_NAME'];
+
+echo '<?xml version="1.0" encoding="utf-8"?>' . "\n";
+
+?>
+<XRDS xmlns="xri://$xrds">
+    <XRD xmlns:simple="http://xrds-simple.net/core/1.0" xmlns="xri://$XRD*($v*2.0)" xmlns:openid="http://openid.net/xmlns/1.0" version="2.0" xml:id="main">
+	<Type>xri://$xrds*simple</Type>
+	<Service>
+	    <Type>http://oauth.net/discovery/1.0</Type>
+	    <URI>#main</URI>
+	</Service>
+	<Service>
+	    <Type>http://oauth.net/core/1.0/endpoint/request</Type>
+	    <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+	    <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+	    <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+	    <Type>http://oauth.net/core/1.0/signature/PLAINTEXT</Type>
+	    <URI>http://<?=$server?>/oauth/request_token</URI>
+	</Service>
+	<Service>
+	    <Type>http://oauth.net/core/1.0/endpoint/authorize</Type>
+	    <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+	    <URI>http://<?=$server?>/oauth/authorize</URI>
+	</Service>
+	<Service>
+	    <Type>http://oauth.net/core/1.0/endpoint/access</Type>
+	    <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+	    <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+	    <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+	    <Type>http://oauth.net/core/1.0/signature/PLAINTEXT</Type>
+	    <URI>http://<?=$server?>/oauth/access_token</URI>
+	</Service>
+    </XRD>
+</XRDS>
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthDiscovery.php b/mod/oauth_api/vendors/oauth/library/OAuthDiscovery.php
new file mode 100644
index 000000000..d097756dd
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthDiscovery.php
@@ -0,0 +1,226 @@
+<?php
+
+/**
+ * Handle the discovery of OAuth service provider endpoints and static consumer identity.
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Sep 4, 2008 5:05:19 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__).'/discovery/xrds_parse.php';
+
+require_once dirname(__FILE__).'/OAuthException.php';
+require_once dirname(__FILE__).'/OAuthRequestLogger.php';
+
+
+class OAuthDiscovery
+{
+	/**
+	 * Return a description how we can do a consumer allocation.  Prefers static allocation if
+	 * possible.  If static allocation is possible
+	 * 
+	 * See also: http://oauth.net/discovery/#consumer_identity_types
+	 * 
+	 * @param string uri
+	 * @return array		provider description
+	 */
+	static function discover ( $uri )
+	{
+		// See what kind of consumer allocations are available
+		$xrds_file = self::discoverXRDS($uri);
+		if (!empty($xrds_file))
+		{
+			$xrds = xrds_parse($xrds_file);
+			if (empty($xrds))
+			{
+				throw new OAuthException('Could not discover OAuth information for '.$uri);
+			}
+		}
+		else
+		{
+			throw new OAuthException('Could not discover XRDS file at '.$uri);
+		}
+
+		// Fill an OAuthServer record for the uri found
+		$ps			= parse_url($uri);
+		$host		= isset($ps['host']) ? $ps['host'] : 'localhost';
+		$server_uri = $ps['scheme'].'://'.$host.'/';
+
+		$p = array(
+				'user_id'			=> null,
+				'consumer_key'		=> '',
+				'consumer_secret'	=> '',
+				'signature_methods'	=> '',
+				'server_uri'		=> $server_uri,
+				'request_token_uri'	=> '',
+				'authorize_uri'		=> '',
+				'access_token_uri'	=> ''
+			);
+
+
+		// Consumer identity (out of bounds or static)
+		if (isset($xrds['consumer_identity']))
+		{
+			// Try to find a static consumer allocation, we like those :)
+			foreach ($xrds['consumer_identity'] as $ci)
+			{
+				if ($ci['method'] == 'static' && !empty($ci['consumer_key']))
+				{
+					$p['consumer_key']    = $ci['consumer_key'];
+					$p['consumer_secret'] = '';
+				}
+				else if ($ci['method'] == 'oob' && !empty($ci['uri']))
+				{
+					// TODO: Keep this uri somewhere for the user?
+					$p['consumer_oob_uri'] = $ci['uri'];
+				}
+			}
+		}
+
+		// The token uris
+		if (isset($xrds['request'][0]['uri']))
+		{
+			$p['request_token_uri'] = $xrds['request'][0]['uri'];
+			if (!empty($xrds['request'][0]['signature_method']))
+			{
+				$p['signature_methods'] = $xrds['request'][0]['signature_method'];
+			}
+		}
+		if (isset($xrds['authorize'][0]['uri']))
+		{
+			$p['authorize_uri'] = $xrds['authorize'][0]['uri'];
+			if (!empty($xrds['authorize'][0]['signature_method']))
+			{
+				$p['signature_methods'] = $xrds['authorize'][0]['signature_method'];
+			}
+		}
+		if (isset($xrds['access'][0]['uri']))
+		{
+			$p['access_token_uri'] = $xrds['access'][0]['uri'];
+			if (!empty($xrds['access'][0]['signature_method']))
+			{
+				$p['signature_methods'] = $xrds['access'][0]['signature_method'];
+			}
+		}
+		return $p;
+	}
+	
+	
+	/**
+	 * Discover the XRDS file at the uri.  This is a bit primitive, you should overrule
+	 * this function so that the XRDS file can be cached for later referral.
+	 * 
+	 * @param string uri
+	 * @return string		false when no XRDS file found
+	 */
+	static protected function discoverXRDS ( $uri, $recur = 0 )
+	{
+		// Bail out when we are following redirects
+		if ($recur > 10)
+		{
+			return false;
+		}
+		
+		$data = self::curl($uri);
+
+		// Check what we got back, could be:
+		// 1. The XRDS discovery file itself (check content-type)
+		// 2. The X-XRDS-Location header
+		
+		if (is_string($data) && !empty($data))
+		{
+			list($head,$body) = explode("\r\n\r\n", $data);
+			$body = trim($body);
+			$m	  = false;
+
+			// See if we got the XRDS file itself or we have to follow a location header
+			if (	preg_match('/^Content-Type:\s*application\/xrds+xml/im', $head)
+				||	preg_match('/^<\?xml[^>]*\?>\s*<xrds\s/i', $body)
+				||	preg_match('/^<xrds\s/i', $body)
+				)
+			{
+				$xrds = $body;
+			}
+			else if (	preg_match('/^X-XRDS-Location:\s*(.*)$/im', $head, $m)
+					||	preg_match('/^Location:\s*(.*)$/im', $head, $m))
+			{
+				// Recurse to the given location
+				if ($uri != $m[1])
+				{
+					$xrds = self::discoverXRDS($m[1], $recur+1);
+				}
+				else
+				{
+					// Referring to the same uri, bail out
+					$xrds = false;
+				}
+			}
+			else
+			{
+				// Not an XRDS file an nowhere else to check
+				$xrds = false;
+			}
+		}
+		else
+		{
+			$xrds = false;
+		}
+		return $xrds;
+	}
+	
+	
+	/**
+	 * Try to fetch an XRDS file at the given location.  Sends an accept header preferring the xrds file.
+	 * 
+	 * @param string uri
+	 * @return array	(head,body), false on an error
+	 */
+	static protected function curl ( $uri )
+	{
+		$ch = curl_init();
+
+		curl_setopt($ch, CURLOPT_HTTPHEADER,	 array('Accept: application/xrds+xml, */*;q=0.1'));
+		curl_setopt($ch, CURLOPT_USERAGENT,		 'anyMeta/OAuth 1.0 - (OAuth Discovery $LastChangedRevision: 45 $)');
+		curl_setopt($ch, CURLOPT_URL, 			 $uri);
+		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+		curl_setopt($ch, CURLOPT_HEADER, 		 true);
+
+		$txt = curl_exec($ch);
+		curl_close($ch);
+
+		// Tell the logger what we requested and what we received back
+		$data = "GET $uri";
+		OAuthRequestLogger::setSent($data, "");
+		OAuthRequestLogger::setReceived($txt);
+
+		return $txt;
+	}
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthException.php b/mod/oauth_api/vendors/oauth/library/OAuthException.php
new file mode 100644
index 000000000..cadd1d032
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthException.php
@@ -0,0 +1,50 @@
+<?php
+
+/**
+ * Simple exception wrapper for OAuth
+ * 
+ * @version $Id: OAuthException.php 49 2008-10-01 09:43:19Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 29, 2007 5:33:54 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// TODO: something with the HTTP return code matching to the problem
+
+require_once dirname(__FILE__) . '/OAuthRequestLogger.php';
+
+class OAuthException extends Exception
+{
+	function __construct ( $message )
+	{
+		Exception::__construct($message);
+		OAuthRequestLogger::addNote('OAuthException: '.$message);
+	}
+
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthRequest.php b/mod/oauth_api/vendors/oauth/library/OAuthRequest.php
new file mode 100644
index 000000000..c0d6ddbc7
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthRequest.php
@@ -0,0 +1,801 @@
+<?php
+
+/**
+ * Request wrapper class.  Prepares a request for consumption by the OAuth routines
+ * 
+ * @version $Id: OAuthRequest.php 50 2008-10-01 15:11:08Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 16, 2007 12:20:31 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+require_once dirname(__FILE__) . '/OAuthException.php';
+
+/**
+ * Object to parse an incoming OAuth request or prepare an outgoing OAuth request
+ */
+class OAuthRequest 
+{
+	/* the realm for this request */
+	protected $realm;
+	
+	/* all the parameters, RFC3986 encoded name/value pairs */
+	protected $param = array();
+
+	/* the parsed request uri */
+	protected $uri_parts;
+
+	/* the raw request uri */
+	protected $uri;
+
+	/* the request headers */
+	protected $headers;
+
+	/* the request method */
+	protected $method;
+	
+	/* the body of the OAuth request */
+	protected $body;
+	
+
+	/**
+	 * Construct from the current request. Useful for checking the signature of a request.
+	 * When not supplied with any parameters this will use the current request.
+	 * 
+	 * @param string	uri				might include parameters
+	 * @param string	method			GET, PUT, POST etc.
+	 * @param string	parameters		additional post parameters, urlencoded (RFC1738)
+	 * @param array		headers			headers for request
+	 * @param string	body			optional body of the OAuth request (POST or PUT)
+	 */
+	function __construct ( $uri = null, $method = 'GET', $parameters = '', $headers = array(), $body = null )
+	{
+		if (empty($uri))
+		{
+			if (is_object($_SERVER))
+			{
+				// Tainted arrays - the normal stuff in anyMeta
+				$method	= $_SERVER->REQUEST_METHOD->getRawUnsafe();
+				$uri	= $_SERVER->REQUEST_URI->getRawUnsafe();
+			}
+			else
+			{
+				// non anyMeta systems
+				$method	= $_SERVER['REQUEST_METHOD'];
+				$uri	= $_SERVER['REQUEST_URI'];
+			}
+			$headers      = getallheaders();
+			$parameters   = '';
+			$this->method = strtoupper($method);
+			
+			// If this is a post then also check the posted variables
+			if (strcasecmp($method, 'POST') == 0)
+			{
+				/*
+				// TODO: what to do with 'multipart/form-data'?
+				if ($this->getRequestContentType() == 'multipart/form-data')
+				{
+					throw new OAuthException('Unsupported POST content type, expected "application/x-www-form-urlencoded" got "'.@$_SERVER['CONTENT_TYPE'].'"');
+				}
+				*/
+				if ($this->getRequestContentType() == 'application/x-www-form-urlencoded')
+				{
+					// Get the posted body (when available)
+					if (!isset($headers['X-OAuth-Test']))
+					{
+						$parameters .= $this->getRequestBody();
+					}
+				}
+				else
+				{
+					$body = $this->getRequestBody();
+				}
+			}
+			else if (strcasecmp($method, 'PUT') == 0)
+			{
+				$body = $this->getRequestBody();
+			}
+		}
+
+		$this->method  = strtoupper($method);
+		$this->headers = $headers;
+		// Store the values, prepare for oauth
+		$this->uri     = $uri;
+		$this->body    = $body;
+		$this->parseUri($parameters);
+		$this->parseHeaders();
+		$this->transcodeParams();
+	}
+
+
+	/**
+	 * Return the signature base string.
+	 * Note that we can't use rawurlencode due to specified use of RFC3986.
+	 * 
+	 * @return string
+	 */
+	function signatureBaseString ()
+	{
+		$sig 	= array();
+		$sig[]	= $this->method;
+		$sig[]	= $this->getRequestUrl();
+		$sig[]	= $this->getNormalizedParams();
+		
+		return implode('&', array_map(array($this, 'urlencode'), $sig));
+	}
+	
+	
+	/**
+	 * Calculate the signature of the request, using the method in oauth_signature_method.
+	 * The signature is returned encoded in the form as used in the url.  So the base64 and
+	 * urlencoding has been done.
+	 * 
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @exception when not all parts available
+	 * @return string
+	 */
+	function calculateSignature ( $consumer_secret, $token_secret, $token_type = 'access' )
+	{
+		$required = array(
+						'oauth_consumer_key',
+						'oauth_signature_method',
+						'oauth_timestamp',
+						'oauth_nonce'
+					);
+
+		if ($token_type !== false)
+		{
+			$required[] = 'oauth_token';
+		}
+
+		foreach ($required as $req)
+		{
+			if (!isset($this->param[$req]))
+			{
+				throw new OAuthException('Can\'t sign request, missing parameter "'.$req.'"');
+			}
+		}
+
+		$this->checks();
+
+		$base      = $this->signatureBaseString();
+		$signature = $this->calculateDataSignature($base, $consumer_secret, $token_secret, $this->param['oauth_signature_method']);
+		return $signature;
+	}
+
+	
+	/**
+	 * Calculate the signature of a string.
+	 * Uses the signature method from the current parameters.
+	 * 
+	 * @param string 	data
+	 * @param string	consumer_secret
+	 * @param string	token_secret
+	 * @param string 	signature_method
+	 * @exception OAuthException thrown when the signature method is unknown 
+	 * @return string signature
+	 */
+	function calculateDataSignature ( $data, $consumer_secret, $token_secret, $signature_method )
+	{
+		if (is_null($data))
+		{
+			$data = '';
+		}
+
+		$sig = $this->getSignatureMethod($signature_method);
+		return $sig->signature($this, $data, $consumer_secret, $token_secret);
+	}
+
+
+	/**
+	 * Select a signature method from the list of available methods.
+	 * We try to check the most secure methods first.
+	 * 
+	 * @todo Let the signature method tell us how secure it is
+	 * @param array methods
+	 * @exception OAuthException when we don't support any method in the list
+	 * @return string
+	 */
+	public function selectSignatureMethod ( $methods )
+	{
+		if (in_array('HMAC-SHA1', $methods))
+		{
+			$method = 'HMAC-SHA1';
+		}
+		else if (in_array('MD5', $methods))
+		{
+			$method = 'MD5';
+		}
+		else
+		{
+			$method = false;
+			foreach ($methods as $m)
+			{
+				$m = strtoupper($m);
+				$m = preg_replace('/[^A-Z0-9]/', '_', $m);
+				if (file_exists(dirname(__FILE__).'/signature_method/OAuthSignatureMethod_'.$m.'.php'))
+				{
+					$method = $m;
+					break;
+				}
+			}
+			
+			if (empty($method))
+			{
+				throw new OAuthException('None of the signing methods is supported.');
+			}
+		}
+		return $method;
+	}
+
+	
+	/**
+	 * Fetch the signature object used for calculating and checking the signature base string
+	 * 
+	 * @param string method
+	 * @return OAuthSignatureMethod object
+	 */
+	function getSignatureMethod ( $method )
+	{
+		$m     = strtoupper($method);
+		$m     = preg_replace('/[^A-Z0-9]/', '_', $m);
+		$class = 'OAuthSignatureMethod_'.$m;
+
+		if (file_exists(dirname(__FILE__).'/signature_method/'.$class.'.php'))
+		{
+			require_once dirname(__FILE__).'/signature_method/'.$class.'.php';
+			$sig = new $class();
+		}
+		else
+		{
+			throw new OAuthException('Unsupported signature method "'.$m.'".');
+		}
+		return $sig;
+	}
+
+
+	/**
+	 * Perform some sanity checks.
+	 * 
+	 * @exception OAuthException thrown when sanity checks failed
+	 */
+	function checks ()
+	{
+		if (isset($this->param['oauth_version']))
+		{
+			$version = $this->urldecode($this->param['oauth_version']);
+			if ($version != '1.0')
+			{
+				throw new OAuthException('Expected OAuth version 1.0, got "'.$this->param['oauth_version'].'"');
+			}
+		}
+	}
+
+
+	/**
+	 * Return the request method
+	 * 
+	 * @return string
+	 */
+	function getMethod ()
+	{
+		return $this->method;
+	}
+
+	/**
+	 * Return the complete parameter string for the signature check.
+	 * All parameters are correctly urlencoded and sorted on name and value
+	 * 
+	 * @return string
+	 */
+	function getNormalizedParams ()
+	{
+		/*
+		// sort by name, then by value 
+		// (needed when we start allowing multiple values with the same name)
+		$keys   = array_keys($this->param);
+		$values = array_values($this->param);
+		array_multisort($keys, SORT_ASC, $values, SORT_ASC);
+        */
+        $params     = $this->param;
+		$normalized = array();
+
+		ksort($params);
+		foreach ($params as $key => $value)
+		{
+		    // all names and values are already urlencoded, exclude the oauth signature
+		    if ($key != 'oauth_signature')
+		   	{
+				if (is_array($value))
+				{
+					$value_sort = $value;
+					sort($value_sort);
+					foreach ($value_sort as $v)
+					{
+						$normalized[] = $key.'='.$v;
+					}
+				}
+				else
+				{
+					$normalized[] = $key.'='.$value;
+				}
+			}
+		}
+		return implode('&', $normalized);
+	}
+
+
+	/**
+	 * Return the normalised url for signature checks
+	 */
+	function getRequestUrl ()
+	{
+        $url =  $this->uri_parts['scheme'] . '://'
+              . $this->uri_parts['user'] . (!empty($this->uri_parts['pass']) ? ':' : '')
+              . $this->uri_parts['pass'] . (!empty($this->uri_parts['user']) ? '@' : '')
+			  . $this->uri_parts['host'];
+			  
+		if (	$this->uri_parts['port'] 
+			&&	$this->uri_parts['port'] != $this->defaultPortForScheme($this->uri_parts['scheme']))
+		{
+			$url .= ':'.$this->uri_parts['port'];
+		}
+		if (!empty($this->uri_parts['path']))
+		{
+			$url .= $this->uri_parts['path'];
+		}
+		return $url;
+	}
+	
+	
+	/**
+	 * Get a parameter, value is always urlencoded
+	 * 
+	 * @param string	name
+	 * @param boolean	urldecode	set to true to decode the value upon return
+	 * @return string value		false when not found
+	 */
+	function getParam ( $name, $urldecode = false )
+	{
+		if (isset($this->param[$name]))
+		{
+			$s = $this->param[$name];
+		}
+		else if (isset($this->param[$this->urlencode($name)]))
+		{
+			$s = $this->param[$this->urlencode($name)];
+		}
+		else
+		{
+			$s = false;
+		}
+		if (!empty($s) && $urldecode)
+		{
+			if (is_array($s))
+			{
+				$s = array_map(array($this,'urldecode'), $s);
+			}
+			else
+			{
+				$s = $this->urldecode($s);
+			}
+		}
+		return $s;
+	}
+
+	/**
+	 * Set a parameter
+	 * 
+	 * @param string	name
+	 * @param string	value
+	 * @param boolean	encoded	set to true when the values are already encoded
+	 */
+	function setParam ( $name, $value, $encoded = false )
+	{
+		if (!$encoded)
+		{
+			$name_encoded = $this->urlencode($name);
+			if (is_array($value))
+			{
+				foreach ($value as $v)
+				{
+					$this->param[$name_encoded][] = $this->urlencode($v);
+				}
+			}
+			else
+			{
+				$this->param[$name_encoded] = $this->urlencode($value);
+			}
+		}
+		else
+		{
+			$this->param[$name] = $value;
+		}
+	}
+
+
+	/**
+	 * Re-encode all parameters so that they are encoded using RFC3986.
+	 * Updates the $this->param attribute.
+	 */
+	protected function transcodeParams ()
+	{
+		$params      = $this->param;
+		$this->param = array();
+		
+		foreach ($params as $name=>$value)
+		{
+			if (is_array($value))
+			{
+				$this->param[$this->urltranscode($name)] = array_map(array($this,'urltranscode'), $value);
+			}
+			else
+			{
+				$this->param[$this->urltranscode($name)] = $this->urltranscode($value);
+			}
+		}
+	}
+
+
+
+	/**
+	 * Return the body of the OAuth request.
+	 * 
+	 * @return string		null when no body
+	 */
+	function getBody ()
+	{
+		return $this->body;
+	}
+
+
+	/**
+	 * Return the body of the OAuth request.
+	 * 
+	 * @return string		null when no body
+	 */
+	function setBody ( $body )
+	{
+		$this->body = $body;
+	}
+
+
+	/**
+	 * Parse the uri into its parts.  Fill in the missing parts.
+	 * 
+	 * @todo  check for the use of https, right now we default to http
+	 * @todo  support for multiple occurences of parameters
+	 * @param string $parameters  optional extra parameters (from eg the http post)
+	 */
+	protected function parseUri ( $parameters )
+	{
+		$ps = parse_url($this->uri);
+
+		// Get the current/requested method
+		if (empty($ps['scheme']))
+		{
+			$ps['scheme'] = 'http';
+		}
+		else
+		{
+			$ps['scheme'] = strtolower($ps['scheme']);
+		}
+
+		// Get the current/requested host
+		if (empty($ps['host']))
+		{
+			if (isset($_SERVER['HTTP_HOST']))
+			{
+				$ps['host'] = $_SERVER['HTTP_HOST'];
+			}
+			else
+			{
+				$ps['host'] = '';
+			}
+		}
+		$ps['host'] = mb_strtolower($ps['host']);
+		if (!preg_match('/^[a-z0-9\.\-]+$/', $ps['host']))
+		{
+			throw new OAuthException('Unsupported characters in host name');
+		}
+
+		// Get the port we are talking on
+		if (empty($ps['port']))
+		{
+			$ps['port'] = $this->defaultPortForScheme($ps['scheme']);
+		}
+
+		if (empty($ps['user']))
+		{
+			$ps['user'] = '';
+		}
+		if (empty($ps['pass']))
+		{
+			$ps['pass'] = '';
+		}
+		if (empty($ps['path']))
+		{
+			$ps['path'] = '/';
+		}
+		if (empty($ps['query']))
+		{
+			$ps['query'] = '';
+		}
+		if (empty($ps['fragment']))
+		{
+			$ps['fragment'] = '';
+		}
+
+		// Now all is complete - parse all parameters
+		foreach (array($ps['query'], $parameters) as $params)
+		{
+			if (strlen($params) > 0)
+			{
+				$params = explode('&', $params);
+				foreach ($params as $p)
+				{
+					@list($name, $value) = explode('=', $p, 2);
+					$this->param[$name]  = $value;
+				}
+			}
+		}
+		$this->uri_parts = $ps;
+	}
+
+
+	/**
+	 * Return the default port for a scheme
+	 * 
+	 * @param string scheme
+	 * @return int
+	 */
+	protected function defaultPortForScheme ( $scheme )
+	{
+		switch ($scheme)
+		{
+		case 'http':	return 80;
+		case 'https':	return 43;
+		default:
+			throw new OAuthException('Unsupported scheme type, expected http or https, got "'.$scheme.'"');
+			break;
+		}
+	}
+	
+	
+	/**
+	 * Encode a string according to the RFC3986
+	 * 
+	 * @param string s
+	 * @return string
+	 */
+	function urlencode ( $s )
+	{
+		if ($s === false)
+		{
+			return $s;
+		}
+		else
+		{
+			return str_replace('%7E', '~', rawurlencode($s));
+		}
+	}
+	
+	/**
+	 * Decode a string according to RFC3986.
+	 * Also correctly decodes RFC1738 urls.
+	 * 
+	 * @param string s
+	 * @return string
+	 */
+	function urldecode ( $s )
+	{
+		if ($s === false)
+		{
+			return $s;
+		}
+		else
+		{
+			return rawurldecode($s);
+		}
+	}
+
+	/**
+	 * urltranscode - make sure that a value is encoded using RFC3986.
+	 * We use a basic urldecode() function so that any use of '+' as the
+	 * encoding of the space character is correctly handled.
+	 * 
+	 * @param string s
+	 * @return string
+	 */
+	function urltranscode ( $s )
+	{
+		if ($s === false)
+		{
+			return $s;
+		}
+		else
+		{
+			return $this->urlencode(urldecode($s));
+		}
+	}
+
+
+	/**
+	 * Parse the oauth parameters from the request headers
+	 * Looks for something like:
+	 *
+     * Authorization: OAuth realm="http://photos.example.net/authorize",
+     *           oauth_consumer_key="dpf43f3p2l4k3l03",
+     *           oauth_token="nnch734d00sl2jdk",
+     *           oauth_signature_method="HMAC-SHA1",
+     *           oauth_signature="tR3%2BTy81lMeYAr%2FFid0kMTYa%2FWM%3D",
+     *           oauth_timestamp="1191242096",
+     *           oauth_nonce="kllo9940pd9333jh",
+     *           oauth_version="1.0"
+     */
+	private function parseHeaders ()
+	{
+/*
+		$this->headers['Authorization'] = 'OAuth realm="http://photos.example.net/authorize",
+                oauth_consumer_key="dpf43f3p2l4k3l03",
+                oauth_token="nnch734d00sl2jdk",
+                oauth_signature_method="HMAC-SHA1",
+                oauth_signature="tR3%2BTy81lMeYAr%2FFid0kMTYa%2FWM%3D",
+                oauth_timestamp="1191242096",
+                oauth_nonce="kllo9940pd9333jh",
+                oauth_version="1.0"';
+*/		
+		if (isset($this->headers['Authorization']))
+		{
+			$auth = trim($this->headers['Authorization']);
+			if (strncasecmp($auth, 'OAuth', 4) == 0)
+			{
+				$vs = explode(',', substr($auth, 6));
+				foreach ($vs as $v)
+				{
+					if (strpos($v, '='))
+					{
+						$v = trim($v);
+						list($name,$value) = explode('=', $v, 2);
+						if (!empty($value) && $value{0} == '"' && substr($value, -1) == '"')
+						{
+							$value = substr(substr($value, 1), 0, -1);
+						}
+						
+						if (strcasecmp($name, 'realm') == 0)
+						{
+							$this->realm = $value;
+						}
+						else
+						{
+							$this->param[$name] = $value;
+						}
+					}
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * Fetch the content type of the current request
+	 * 
+	 * @return string
+	 */
+	private function getRequestContentType ()
+	{
+		$content_type = 'application/octet-stream';
+		if (!empty($_SERVER) && array_key_exists('CONTENT_TYPE', $_SERVER))
+		{
+			list($content_type) = explode(';', $_SERVER['CONTENT_TYPE']);
+		}
+		return trim($content_type);
+	}
+
+
+	/**
+	 * Get the body of a POST or PUT.
+	 * 
+	 * Used for fetching the post parameters and to calculate the body signature.
+	 * 
+	 * @return string		null when no body present (or wrong content type for body)
+	 */
+	private function getRequestBody ()
+	{
+		$body = null;
+		if ($this->method == 'POST' || $this->method == 'PUT')
+		{
+			$body = '';
+			$fh   = @fopen('php://input', 'r');
+			if ($fh)
+			{
+				while (!feof($fh))
+				{
+					$s = fread($fh, 1024);
+					if (is_string($s))
+					{
+						$body .= $s;
+					}
+				}
+				fclose($fh);
+			}
+		}
+		return $body;
+	}
+
+	
+	/**
+	 * Simple function to perform a redirect (GET).
+	 * Redirects the User-Agent, does not return.
+	 * 
+	 * @param string uri
+	 * @param array params		parameters, urlencoded
+	 * @exception OAuthException when redirect uri is illegal
+	 */
+	public function redirect ( $uri, $params )
+	{
+		if (!empty($params))
+		{
+			$q = array();
+			foreach ($params as $name=>$value)
+			{
+				$q[] = $name.'='.$value;
+			}
+			$q_s = implode('&', $q);
+			
+			if (strpos($uri, '?'))
+			{
+				$uri .= '&'.$q_s;
+			}
+			else
+			{
+				$uri .= '?'.$q_s;
+			}
+		}
+		
+		// simple security - multiline location headers can inject all kinds of extras
+		$uri = preg_replace('/\s/', '%20', $uri);
+		if (strncasecmp($uri, 'http://', 7) && strncasecmp($uri, 'https://', 8))
+		{
+			if (strpos($uri, '://'))
+			{
+				throw new OAuthException('Illegal protocol in redirect uri '.$uri);
+			}
+			$uri = 'http://'.$uri;
+		}
+		
+		header('HTTP/1.1 302 Found');
+		header('Location: '.$uri);
+		echo '';
+		exit();
+	}
+	
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthRequestLogger.php b/mod/oauth_api/vendors/oauth/library/OAuthRequestLogger.php
new file mode 100644
index 000000000..5b88e9d20
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthRequestLogger.php
@@ -0,0 +1,274 @@
+<?php
+
+/**
+ * Log OAuth requests
+ * 
+ * @version $Id: OAuthRequestLogger.php 55 2009-01-14 15:27:36Z scherpenisse $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Dec 7, 2007 12:22:43 PM
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+class OAuthRequestLogger 
+{
+	static private $logging			= 0;
+	static private $enable_logging	= null;
+	static private $store_log		= null;
+	static private $note 			= '';
+	static private $user_id			= null;
+	static private $request_object	= null;
+	static private $sent			= null;
+	static private $received		= null;
+	static private $log				= array();
+	
+	/**
+	 * Start any logging, checks the system configuration if logging is needed.
+	 * 
+	 * @param OAuthRequest  $request_object
+	 */
+	static function start ( $request_object = null )
+	{
+		if (defined('OAUTH_LOG_REQUEST'))
+		{
+			if (is_null(OAuthRequestLogger::$enable_logging))
+			{
+				OAuthRequestLogger::$enable_logging = true;
+			}
+			if (is_null(OAuthRequestLogger::$store_log))
+			{
+				OAuthRequestLogger::$store_log = true;
+			}
+		}
+
+		if (OAuthRequestLogger::$enable_logging && !OAuthRequestLogger::$logging)
+		{
+			OAuthRequestLogger::$logging        = true;
+			OAuthRequestLogger::$request_object = $request_object;
+			ob_start();
+
+			// Make sure we flush our log entry when we stop the request (eg on an exception)
+			register_shutdown_function(array('OAuthRequestLogger','flush'));		
+		}
+	}
+	
+
+	/**
+	 * Force logging, needed for performing test connects independent from the debugging setting.
+	 * 
+	 * @param boolean  store_log		(optional) true to store the log in the db
+	 */
+	static function enableLogging ( $store_log = null )
+	{
+		OAuthRequestLogger::$enable_logging = true;
+		if (!is_null($store_log))
+		{
+			OAuthRequestLogger::$store_log = $store_log;
+		}
+	}	
+
+
+	/**
+	 * Logs the request to the database, sends any cached output.
+	 * Also called on shutdown, to make sure we always log the request being handled.
+	 */
+	static function flush ()
+	{
+		if (OAuthRequestLogger::$logging)
+		{
+			OAuthRequestLogger::$logging = false;
+
+			if (is_null(OAuthRequestLogger::$sent))
+			{
+				// What has been sent to the user-agent?
+				$data  = ob_get_contents();
+				if (strlen($data) > 0)
+				{
+					ob_end_flush();
+				}
+				elseif (ob_get_level())
+				{
+					ob_end_clean();
+				}
+				$hs    = headers_list();
+				$sent  = implode("\n", $hs) . "\n\n" . $data;
+			}
+			else
+			{
+				// The request we sent
+				$sent  = OAuthRequestLogger::$sent;
+			}
+			
+			if (is_null(OAuthRequestLogger::$received))
+			{
+				// Build the request we received
+				$hs0   = getallheaders();
+				$hs    = array();
+				foreach ($hs0 as $h => $v)
+				{
+					$hs[] = "$h: $v";
+				}
+
+				$data  = '';
+				$fh    = @fopen('php://input', 'r');
+				if ($fh)
+				{
+					while (!feof($fh))
+					{
+						$s = fread($fh, 1024);
+						if (is_string($s))
+						{
+							$data .= $s;
+						}
+					}
+					fclose($fh);
+				}
+				$received = implode("\n", $hs) . "\n\n" . $data;
+			}
+			else
+			{
+				// The answer we received
+				$received  = OAuthRequestLogger::$received;
+			}
+
+			// The request base string
+			if (OAuthRequestLogger::$request_object)
+			{
+				$base_string = OAuthRequestLogger::$request_object->signatureBaseString();
+			}
+			else
+			{
+				$base_string = '';
+			}
+
+			// Figure out to what keys we want to log this request
+			$keys = array();
+			if (OAuthRequestLogger::$request_object)
+			{
+				$consumer_key = OAuthRequestLogger::$request_object->getParam('oauth_consumer_key', true);
+				$token        = OAuthRequestLogger::$request_object->getParam('oauth_token',        true);
+
+				switch (get_class(OAuthRequestLogger::$request_object))
+				{
+				// tokens are access/request tokens by a consumer
+				case 'OAuthServer':
+				case 'OAuthRequestVerifier':
+					$keys['ocr_consumer_key'] = $consumer_key;
+					$keys['oct_token']        = $token;
+					break;
+
+				// tokens are access/request tokens to a server
+				case 'OAuthRequester':
+				case 'OAuthRequestSigner':
+					$keys['osr_consumer_key'] = $consumer_key;
+					$keys['ost_token']        = $token;
+					break;
+				}
+			}
+			
+			// Log the request
+			if (OAuthRequestLogger::$store_log)
+			{
+				$store = elggconnect_get_oauth_store();//OAuthStore::instance();
+				$store->addLog($keys, $received, $sent, $base_string, OAuthRequestLogger::$note, OAuthRequestLogger::$user_id);
+			}
+			
+			OAuthRequestLogger::$log[] = array(
+					'keys'    		=> $keys,
+					'received'		=> $received,
+					'sent'			=> $sent,
+					'base_string'	=> $base_string,
+					'note'			=> OAuthRequestLogger::$note
+					);
+		}
+	}
+
+
+	/**
+	 * Add a note, used by the OAuthException to log all exceptions.
+	 * 
+	 * @param string note
+	 */
+	static function addNote ( $note )
+	{
+		OAuthRequestLogger::$note .= $note . "\n\n";
+	}
+
+	/**
+	 * Set the OAuth request object being used
+	 * 
+	 * @param OAuthRequest request_object
+	 */
+	static function setRequestObject ( $request_object )
+	{
+		OAuthRequestLogger::$request_object = $request_object;
+	}
+
+
+	/**
+	 * Set the relevant user (defaults to the current user)
+	 * 
+	 * @param int user_id
+	 */
+	static function setUser ( $user_id )
+	{
+		OAuthRequestLogger::$user_id = $user_id;
+	}
+	
+	
+	/**
+	 * Set the request we sent
+	 * 
+	 * @param string request
+	 */
+	static function setSent ( $request )
+	{
+		OAuthRequestLogger::$sent = $request;
+	}
+
+	/**
+	 * Set the reply we received
+	 * 
+	 * @param string request
+	 */
+	static function setReceived ( $reply )
+	{
+		OAuthRequestLogger::$received = $reply;
+	}
+	
+	
+	/**
+	 * Get the the log till now
+	 * 
+	 * @return array
+	 */
+	static function getLog ()
+	{
+		return OAuthRequestLogger::$log;
+	}
+}
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthRequestSigner.php b/mod/oauth_api/vendors/oauth/library/OAuthRequestSigner.php
new file mode 100644
index 000000000..a33d14034
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthRequestSigner.php
@@ -0,0 +1,209 @@
+<?php
+
+/**
+ * Sign requests before performing the request.
+ * 
+ * @version $Id: OAuthRequestSigner.php 58 2009-02-23 01:47:23Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 16, 2007 4:02:49 PM
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+require_once dirname(__FILE__) . '/OAuthStore.php';
+require_once dirname(__FILE__) . '/OAuthRequest.php';
+
+
+class OAuthRequestSigner extends OAuthRequest
+{
+	protected $request;
+	protected $store;
+	protected $usr_id = 0;
+	private   $signed = false;
+
+	
+	/**
+	 * Construct the request to be signed.  Parses or appends the parameters in the params url.
+	 * When you supply an params array, then the params should not be urlencoded.
+	 * When you supply a string, then it is assumed it is of the type application/x-www-form-urlencoded
+	 * 
+	 * @param string request	url
+	 * @param string method		PUT, GET, POST etc.
+	 * @param mixed params 		string (for urlencoded data, or array with name/value pairs)
+	 * @param string body		optional body for PUT and/or POST requests
+	 */
+	function __construct ( $request, $method = 'GET', $params = null, $body = null )
+	{
+		$this->store = elggconnect_get_oauth_store();//OAuthStore::instance();
+		
+		if (is_string($params))
+		{
+			parent::__construct($request, $method, $params);
+		}
+		else
+		{
+			parent::__construct($request, $method);
+			if (is_array($params))
+			{
+				foreach ($params as $name => $value)
+				{
+					$this->setParam($name, $value);
+				}
+			}
+		}
+		
+		// With put/ post we might have a body (not for application/x-www-form-urlencoded requests)
+		if ($method == 'PUT' || $method == 'POST')
+		{
+			$this->setBody($body);
+		}
+	}
+
+
+	/**
+	 * Reset the 'signed' flag, so that any changes in the parameters force a recalculation
+	 * of the signature.
+	 */
+	function setUnsigned ()
+	{
+		$this->signed = false;
+	}
+
+
+	/**
+	 * Sign our message in the way the server understands.
+	 * Set the needed oauth_xxxx parameters.
+	 * 
+	 * @param int usr_id		(optional) user that wants to sign this request
+	 * @param array secrets		secrets used for signing, when empty then secrets will be fetched from the token registry
+	 * @param string name		name of the token to be used for signing
+	 * @exception OAuthException when there is no oauth relation with the server
+	 * @exception OAuthException when we don't support the signing methods of the server
+	 */	
+	function sign ( $usr_id = 0, $secrets = null, $name = '' )
+	{
+		$url = $this->getRequestUrl();
+		if (empty($secrets))
+		{
+			// get the access tokens for the site (on an user by user basis)
+			$secrets = $this->store->getSecretsForSignature($url, $usr_id, $name);
+		}
+		if (empty($secrets))
+		{
+			throw new OAuthException('No OAuth relation with the server for at "'.$url.'"');
+		}
+
+		$signature_method = $this->selectSignatureMethod($secrets['signature_methods']);
+
+		$token		  = isset($secrets['token'])        ? $secrets['token']        : '';
+		$token_secret = isset($secrets['token_secret']) ? $secrets['token_secret'] : '';
+
+		$this->setParam('oauth_signature_method',$signature_method);
+		$this->setParam('oauth_signature',		 '');
+		$this->setParam('oauth_nonce', 			 !empty($secrets['nonce'])     ? $secrets['nonce']     : uniqid(''));
+		$this->setParam('oauth_timestamp', 		 !empty($secrets['timestamp']) ? $secrets['timestamp'] : time());
+		$this->setParam('oauth_token', 		 	 $token);
+		$this->setParam('oauth_consumer_key',	 $secrets['consumer_key']);
+		$this->setParam('oauth_version',		 '1.0');
+		
+		$body = $this->getBody();
+		if (!is_null($body))
+		{
+			// We also need to sign the body, use the default signature method
+			$body_signature = $this->calculateDataSignature($body, $secrets['consumer_secret'], $token_secret, $signature_method);
+			$this->setParam('xoauth_body_signature', $body_signature, true);
+		}
+		
+		$signature = $this->calculateSignature($secrets['consumer_secret'], $token_secret);
+		$this->setParam('oauth_signature',		 $signature, true);
+		
+		$this->signed = true;
+		$this->usr_id = $usr_id;
+	}
+
+
+	/**
+	 * Builds the Authorization header for the request.
+	 * Adds all oauth_ and xoauth_ parameters to the Authorization header.
+	 * 
+	 * @return string
+	 */
+	function getAuthorizationHeader ()
+	{
+		if (!$this->signed)
+		{
+			$this->sign($this->usr_id);
+		}
+		$h   = array();
+		$h[] = 'Authorization: OAuth realm=""';
+		foreach ($this->param as $name => $value)
+		{
+			if (strncmp($name, 'oauth_', 6) == 0 || strncmp($name, 'xoauth_', 7) == 0)
+          	{
+				$h[] = $name.'="'.$value.'"';
+			}
+		}
+		$hs = implode(', ', $h);
+		return $hs;
+	}
+
+
+	/**
+	 * Builds the application/x-www-form-urlencoded parameter string.  Can be appended as
+	 * the query part to a GET or inside the request body for a POST.
+	 * 
+	 * @param boolean oauth_as_header		(optional) set to false to include oauth parameters
+	 * @return string
+	 */	
+	function getQueryString ( $oauth_as_header = true )
+	{
+		$parms = array();
+		foreach ($this->param as $name => $value)
+		{
+			if (	!$oauth_as_header 
+				||	(strncmp($name, 'oauth_', 6) != 0 && strncmp($name, 'xoauth_', 7) != 0))
+			{
+				if (is_array($value))
+				{
+					foreach ($value as $v)
+					{
+						$parms[] = $name.'='.$v;
+					}
+				}
+				else
+				{
+					$parms[] = $name.'='.$value;
+				}
+			}
+		}
+		return implode('&', $parms);
+	}
+
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthRequestVerifier.php b/mod/oauth_api/vendors/oauth/library/OAuthRequestVerifier.php
new file mode 100644
index 000000000..5b346b369
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthRequestVerifier.php
@@ -0,0 +1,262 @@
+<?php
+
+/**
+ * Verify the current request.  Checks if signed and if the signature is correct.
+ * When correct then also figures out on behalf of which user this request is being made.
+ *  
+ * @version $Id: OAuthRequestVerifier.php 51 2008-10-15 15:15:47Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 16, 2007 4:35:03 PM
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__) . '/OAuthStore.php';
+require_once dirname(__FILE__) . '/OAuthRequest.php';
+
+
+class OAuthRequestVerifier extends OAuthRequest
+{
+	private $request;
+	private $store;
+	
+	/**
+	 * Construct the request to be verified
+	 * 
+	 * @param string request
+	 * @param string method
+	 */
+	function __construct ( $uri = null, $method = 'GET' )
+	{
+		$this->store = elggconnect_get_oauth_store();//OAuthStore::instance();
+		parent::__construct($uri, $method);
+		
+		OAuthRequestLogger::start($this);
+	}
+	
+	
+	/**
+	 * See if the current request is signed with OAuth
+	 * 
+	 * @return boolean
+	 */
+	static public function requestIsSigned ()
+	{
+		if (isset($_REQUEST['oauth_signature']))
+		{
+			$signed = true;
+		}
+		else
+		{
+			$hs = getallheaders();
+			if (isset($hs['Authorization']) && strpos($hs['Authorization'], 'oauth_signature') !== false)
+			{
+				$signed = true;
+			}
+			else
+			{
+				$signed = false;
+			}
+		}
+		return $signed;
+	}
+
+
+	/**
+	 * Verify the request if it seemed to be signed.
+	 * 
+	 * @param string token_type the kind of token needed, defaults to 'access'
+	 * @exception OAuthException thrown when the request did not verify
+	 * @return boolean	true when signed, false when not signed
+	 */
+	public function verifyIfSigned ( $token_type = 'access' )
+	{
+		if ($this->getParam('oauth_consumer_key'))
+		{
+			OAuthRequestLogger::start($this);
+			$this->verify($token_type);
+			$signed = true;
+			OAuthRequestLogger::flush();
+		}
+		else
+		{
+			$signed = false;
+		}
+		return $signed;
+	}
+
+	
+	/**
+	 * Verify the request
+	 * 
+	 * @param string token_type the kind of token needed, defaults to 'access' (false, 'access', 'request')
+	 * @exception OAuthException thrown when the request did not verify
+	 * @return int user_id associated with token (false when no user associated)
+	 */
+	public function verify ( $token_type = 'access' )
+	{
+		$consumer_key = $this->getParam('oauth_consumer_key');
+		$token        = $this->getParam('oauth_token');
+		$user_id      = false;
+
+		if ($consumer_key && ($token_type === false || $token))
+		{
+			$secrets = $this->store->getSecretsForVerify(	$this->urldecode($consumer_key), 
+															$this->urldecode($token), 
+															$token_type);
+
+			$this->store->checkServerNonce(	$this->urldecode($consumer_key),
+											$this->urldecode($token),
+											$this->getParam('oauth_timestamp', true),
+											$this->getParam('oauth_nonce', true));
+
+			$oauth_sig = $this->getParam('oauth_signature');
+			if (empty($oauth_sig))
+			{
+				throw new OAuthException('Verification of signature failed (no oauth_signature in request).');
+			} 
+			
+			try
+			{
+				$this->verifySignature($secrets['consumer_secret'], $secrets['token_secret'], $token_type);
+			}
+			catch (OAuthException $e)
+			{
+				throw new OAuthException('Verification of signature failed (signature base string was "'.$this->signatureBaseString().'").');
+			}
+			
+			// Check the optional body signature
+			if ($this->getParam('xoauth_body_signature'))
+			{
+				$method = $this->getParam('xoauth_body_signature_method');
+				if (empty($method))
+				{
+					$method = $this->getParam('oauth_signature_method');
+				}
+
+				try
+				{
+					$this->verifyDataSignature($this->getBody(), $secrets['consumer_secret'], $secrets['token_secret'], $method, $this->getParam('xoauth_body_signature'));
+				}
+				catch (OAuthException $e)
+				{
+					throw new OAuthException('Verification of body signature failed.');
+				}
+			}
+			
+			// All ok - fetch the user associated with this request
+			if (isset($secrets['user_id']))
+			{
+				$user_id = $secrets['user_id'];
+			}
+			
+			// Check if the consumer wants us to reset the ttl of this token
+			$ttl = $this->getParam('xoauth_token_ttl', true);
+			if (is_numeric($ttl))
+			{
+				$this->store->setConsumerAccessTokenTtl($this->urldecode($token), $ttl);
+			}
+		}
+		else
+		{
+			throw new OAuthException('Can\'t verify request, missing oauth_consumer_key or oauth_token');
+		}
+		return $user_id;
+	}
+
+
+
+	/**
+	 * Verify the signature of the request, using the method in oauth_signature_method.
+	 * The signature is returned encoded in the form as used in the url.  So the base64 and
+	 * urlencoding has been done.
+	 * 
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @exception OAuthException thrown when the signature method is unknown 
+	 * @exception OAuthException when not all parts available
+	 * @exception OAuthException when signature does not match
+	 */
+	public function verifySignature ( $consumer_secret, $token_secret, $token_type = 'access' )
+	{
+		$required = array(
+						'oauth_consumer_key',
+						'oauth_signature_method',
+						'oauth_timestamp',
+						'oauth_nonce',
+						'oauth_signature'
+					);
+
+		if ($token_type !== false)
+		{
+			$required[] = 'oauth_token';
+		}
+
+		foreach ($required as $req)
+		{
+			if (!isset($this->param[$req]))
+			{
+				throw new OAuthException('Can\'t verify request signature, missing parameter "'.$req.'"');
+			}
+		}
+
+		$this->checks();
+
+		$base = $this->signatureBaseString();
+		$this->verifyDataSignature($base, $consumer_secret, $token_secret, $this->param['oauth_signature_method'], $this->param['oauth_signature']);
+	}
+
+
+
+	/**
+	 * Verify the signature of a string.
+	 * 
+	 * @param string 	data
+	 * @param string	consumer_secret
+	 * @param string	token_secret
+	 * @param string 	signature_method
+	 * @param string 	signature
+	 * @exception OAuthException thrown when the signature method is unknown 
+	 * @exception OAuthException when signature does not match
+	 */
+	public function verifyDataSignature ( $data, $consumer_secret, $token_secret, $signature_method, $signature )
+	{
+		if (is_null($data))
+		{
+			$data = '';
+		}
+
+		$sig = $this->getSignatureMethod($signature_method);
+		if (!$sig->verify($this, $data, $consumer_secret, $token_secret, $signature))
+		{
+			throw new OAuthException('Signature verification failed ('.$signature_method.')');
+		}
+	}
+
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthRequester.php b/mod/oauth_api/vendors/oauth/library/OAuthRequester.php
new file mode 100644
index 000000000..c6f56178e
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthRequester.php
@@ -0,0 +1,508 @@
+<?php
+
+/**
+ * Perform a signed OAuth request with a GET, POST, PUT or DELETE operation.
+ * 
+ * @version $Id: OAuthRequester.php 63 2009-02-25 10:24:33Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 20, 2007 1:41:38 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__) . '/OAuthRequestSigner.php';
+require_once dirname(__FILE__) . '/body/OAuthBodyContentDisposition.php';
+
+
+class OAuthRequester extends OAuthRequestSigner
+{
+	protected $files;
+
+	/**
+	 * Construct a new request signer.  Perform the request with the doRequest() method below.
+	 * 
+	 * A request can have either one file or a body, not both. 
+	 * 
+	 * The files array consists of arrays:
+	 * - file			the filename/path containing the data for the POST/PUT
+	 * - data			data for the file, omit when you have a file
+	 * - mime			content-type of the file
+	 * - filename		filename for content disposition header
+	 * 
+	 * When OAuth (and PHP) can support multipart/form-data then we can handle more than one file.
+	 * For now max one file, with all the params encoded in the query string.
+	 * 
+	 * @param string request
+	 * @param string method		http method.  GET, PUT, POST etc.
+	 * @param array params		name=>value array with request parameters
+	 * @param string body		optional body to send
+	 * @param array files		optional files to send (max 1 till OAuth support multipart/form-data posts)
+	 */
+	function __construct ( $request, $method = 'GET', $params = null, $body = null, $files = null )
+	{
+		parent::__construct($request, $method, $params, $body);
+
+		// When there are files, then we can construct a POST with a single file
+		if (!empty($files))
+		{
+			$empty = true;
+			foreach ($files as $f)
+			{
+				$empty = $empty && empty($f['file']) && !isset($f['data']);
+			}
+			
+			if (!$empty)
+			{
+				if (!is_null($body))
+				{
+					throw new OAuthException('When sending files, you can\'t send a body as well.');
+				}
+				$this->files = $files;
+			}
+		}
+	}
+
+
+	/**
+	 * Perform the request, returns the response code, headers and body.
+	 * 
+	 * @param int usr_id			optional user id for which we make the request
+	 * @param array curl_options	optional extra options for curl request
+	 * @param array options			options like name and token_ttl
+	 * @exception OAuthException when authentication not accepted
+	 * @exception OAuthException when signing was not possible
+	 * @return array (code=>int, headers=>array(), body=>string)
+	 */
+	function doRequest ( $usr_id = 0, $curl_options = array(), $options = array() )
+	{
+		$name = isset($options['name']) ? $options['name'] : '';
+		if (isset($options['token_ttl']))
+		{
+			$this->setParam('xoauth_token_ttl', intval($options['token_ttl']));
+		}
+
+		if (!empty($this->files))
+		{
+			// At the moment OAuth does not support multipart/form-data, so try to encode
+			// the supplied file (or data) as the request body and add a content-disposition header.
+			list($extra_headers, $body) = OAuthBodyContentDisposition::encodeBody($this->files);
+			$this->setBody($body);
+			$curl_options = $this->prepareCurlOptions($curl_options, $extra_headers);
+		}
+		$this->sign($usr_id, null, $name);
+		$text   = $this->curl_raw($curl_options);
+		$result = $this->curl_parse($text);	
+		if ($result['code'] >= 400)
+		{
+			throw new OAuthException('Request failed with code ' . $result['code'] . ': ' . $result['body']);
+		}
+
+		// Record the token time to live for this server access token, immediate delete iff ttl <= 0
+		// Only done on a succesful request.	
+		$token_ttl = $this->getParam('xoauth_token_ttl', false);
+		if (is_numeric($token_ttl))
+		{
+			$this->store->setServerTokenTtl($this->getParam('oauth_consumer_key',true), $this->getParam('oauth_token',true), $token_ttl);
+		}
+
+		return $result;
+	}
+
+	
+	/**
+	 * Request a request token from the site belonging to consumer_key
+	 * 
+	 * @param string consumer_key
+	 * @param int usr_id
+	 * @param array params (optional) extra arguments for when requesting the request token
+	 * @param string method (optional) change the method of the request, defaults to POST (as it should be)
+	 * @param array options (optional) options like name and token_ttl
+	 * @exception OAuthException when no key could be fetched
+	 * @exception OAuthException when no server with consumer_key registered
+	 * @return array (authorize_uri, token)
+	 */
+	static function requestRequestToken ( $consumer_key, $usr_id, $params = null, $method = 'POST', $options = array() )
+	{
+		OAuthRequestLogger::start();
+
+		if (isset($options['token_ttl']) && is_numeric($options['token_ttl']))
+		{
+			$params['xoauth_token_ttl'] = intval($options['token_ttl']);
+		}
+
+		$store	= elggconnect_get_oauth_store();//OAuthStore::instance();
+		$r		= $store->getServer($consumer_key, $usr_id);
+		$uri 	= $r['request_token_uri'];
+
+		$oauth 	= new OAuthRequester($uri, $method, $params);
+		$oauth->sign($usr_id, $r);
+		$text	= $oauth->curl_raw();
+
+		if (empty($text))
+		{
+			throw new OAuthException('No answer from the server "'.$uri.'" while requesting a request token');
+		}
+		$data	= $oauth->curl_parse($text);
+		if ($data['code'] != 200)
+		{
+			throw new OAuthException('Unexpected result from the server "'.$uri.'" ('.$data['code'].') while requesting a request token');
+		}
+		$token  = array();
+		$params = explode('&', $data['body']);
+		foreach ($params as $p)
+		{
+			@list($name, $value) = explode('=', $p, 2);
+			$token[$name] = $oauth->urldecode($value);
+		}
+		
+		if (!empty($token['oauth_token']) && !empty($token['oauth_token_secret']))
+		{
+			$opts = array();
+			if (isset($options['name']))
+			{
+				$opts['name'] = $options['name'];
+			}
+			if (isset($token['xoauth_token_ttl']))
+			{
+				$opts['token_ttl'] = $token['xoauth_token_ttl'];
+			}
+			$store->addServerToken($consumer_key, 'request', $token['oauth_token'], $token['oauth_token_secret'], $usr_id, $opts);
+		}
+		else
+		{
+			throw new OAuthException('The server "'.$uri.'" did not return the oauth_token or the oauth_token_secret');
+		}
+
+		OAuthRequestLogger::flush();
+
+		// Now we can direct a browser to the authorize_uri
+		return array(
+					'authorize_uri' => $r['authorize_uri'],
+					'token'			=> $token['oauth_token']
+				);
+	}
+
+
+	/**
+	 * Request an access token from the site belonging to consumer_key.
+	 * Before this we got an request token, now we want to exchange it for
+	 * an access token.
+	 * 
+	 * @param string consumer_key
+	 * @param string token
+	 * @param int usr_id		user requesting the access token
+	 * @param string method (optional) change the method of the request, defaults to POST (as it should be)
+	 * @param array options (optional) extra options for request, eg token_ttl
+	 * @exception OAuthException when no key could be fetched
+	 * @exception OAuthException when no server with consumer_key registered
+	 */
+	static function requestAccessToken ( $consumer_key, $token, $usr_id, $method = 'POST', $options = array() )
+	{
+		OAuthRequestLogger::start();
+
+		$store	    = elggconnect_get_oauth_store();//OAuthStore::instance();
+		$r		    = $store->getServerTokenSecrets($consumer_key, $token, 'request', $usr_id);
+		$uri 	    = $r['access_token_uri'];
+		$token_name	= $r['token_name'];
+
+		// Delete the server request token, this one was for one use only
+		$store->deleteServerToken($consumer_key, $r['token'], 0, true);
+
+		// Try to exchange our request token for an access token
+		$oauth 	= new OAuthRequester($uri, $method);
+
+		if (isset($options['token_ttl']) && is_numeric($options['token_ttl']))
+		{
+			$oauth->setParam('xoauth_token_ttl', intval($options['token_ttl']));
+		}
+
+		OAuthRequestLogger::setRequestObject($oauth);
+
+		$oauth->sign($usr_id, $r);
+		$text	= $oauth->curl_raw();
+		if (empty($text))
+		{
+			throw new OAuthException('No answer from the server "'.$uri.'" while requesting a request token');
+		}
+		$data	= $oauth->curl_parse($text);
+
+		if ($data['code'] != 200)
+		{
+			throw new OAuthException('Unexpected result from the server "'.$uri.'" ('.$data['code'].') while requesting a request token');
+		}
+
+		$token  = array();
+		$params = explode('&', $data['body']);
+		foreach ($params as $p)
+		{
+			@list($name, $value) = explode('=', $p, 2);
+			$token[$oauth->urldecode($name)] = $oauth->urldecode($value);
+		}
+		
+		if (!empty($token['oauth_token']) && !empty($token['oauth_token_secret']))
+		{
+			$opts         = array();
+			$opts['name'] = $token_name;
+			if (isset($token['xoauth_token_ttl']))
+			{
+				$opts['token_ttl'] = $token['xoauth_token_ttl'];
+			}
+			$store->addServerToken($consumer_key, 'access', $token['oauth_token'], $token['oauth_token_secret'], $usr_id, $opts);
+		}
+		else
+		{
+			throw new OAuthException('The server "'.$uri.'" did not return the oauth_token or the oauth_token_secret');
+		}
+
+		OAuthRequestLogger::flush();
+	}
+
+
+
+	/**
+	 * Open and close a curl session passing all the options to the curl libs
+	 * 
+	 * @param string url the http address to fetch
+	 * @exception OAuthException when temporary file for PUT operation could not be created
+	 * @return string the result of the curl action
+	 */
+	protected function curl_raw ( $opts = array() )
+	{
+		if (isset($opts[CURLOPT_HTTPHEADER]))
+		{
+			$header = $opts[CURLOPT_HTTPHEADER];
+		}
+		else
+		{
+			$header = array();
+		}
+
+		$ch 		= curl_init();
+		$method		= $this->getMethod();
+		$url		= $this->getRequestUrl();
+		$header[]	= $this->getAuthorizationHeader();
+		$query		= $this->getQueryString();
+		$body		= $this->getBody();
+
+		$has_content_type = false;
+		foreach ($header as $h)
+		{
+			if (strncasecmp($h, 'Content-Type:', 13) == 0)
+			{
+				$has_content_type = true;
+			}
+		}
+		
+		if (!is_null($body))
+		{
+			if ($method == 'TRACE')
+			{
+				throw new OAuthException('A body can not be sent with a TRACE operation');
+			}
+
+			// PUT and POST allow a request body
+			if (!empty($query))
+			{
+				$url .= '?'.$query;
+			}
+
+			// Make sure that the content type of the request is ok
+			if (!$has_content_type)
+			{
+				$header[]         = 'Content-Type: application/octet-stream';
+				$has_content_type = true;
+			}
+			
+			// When PUTting, we need to use an intermediate file (because of the curl implementation)
+			if ($method == 'PUT')
+			{
+				/*
+				if (version_compare(phpversion(), '5.2.0') >= 0)
+				{
+					// Use the data wrapper to create the file expected by the put method
+					$put_file = fopen('data://application/octet-stream;base64,'.base64_encode($body));
+				}
+				*/
+				
+				$put_file = @tmpfile();
+				if (!$put_file)
+				{
+					throw new OAuthException('Could not create tmpfile for PUT operation');
+				}
+				fwrite($put_file, $body);
+				fseek($put_file, 0);
+
+				curl_setopt($ch, CURLOPT_PUT, 		  true);
+  				curl_setopt($ch, CURLOPT_INFILE, 	  $put_file);
+  				curl_setopt($ch, CURLOPT_INFILESIZE,  strlen($body));
+			}
+			else
+			{
+				curl_setopt($ch, CURLOPT_POST,		  true);
+				curl_setopt($ch, CURLOPT_POSTFIELDS,  $body);
+  			}
+		}
+		else
+		{
+			// a 'normal' request, no body to be send
+			if ($method == 'POST')
+			{
+				if (!$has_content_type)
+				{
+					$header[]         = 'Content-Type: application/x-www-form-urlencoded';
+					$has_content_type = true;
+				}
+
+				curl_setopt($ch, CURLOPT_POST, 		  true);
+				curl_setopt($ch, CURLOPT_POSTFIELDS,  $query);
+			}
+			else
+			{
+				if (!empty($query))
+				{
+					$url .= '?'.$query;
+				}
+				if ($method != 'GET')
+				{
+					curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
+				}
+			}
+		}
+
+		curl_setopt($ch, CURLOPT_HTTPHEADER,	 $header);
+		curl_setopt($ch, CURLOPT_USERAGENT,		 'anyMeta/OAuth 1.0 - ($LastChangedRevision: 63 $)');
+		curl_setopt($ch, CURLOPT_URL, 			 $url);
+		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+		curl_setopt($ch, CURLOPT_HEADER, 		 true);
+	
+		foreach ($opts as $k => $v)
+		{
+			if ($k != CURLOPT_HTTPHEADER)
+			{
+				curl_setopt($ch, $k, $v);
+			}
+		}
+
+		$txt = curl_exec($ch);
+		curl_close($ch);
+		
+		if (!empty($put_file))
+		{
+			fclose($put_file);
+		}
+
+		// Tell the logger what we requested and what we received back
+		$data = $method . " $url\n".implode("\n",$header);
+		if (is_string($body))
+		{
+			$data .= "\n\n".$body;
+		}
+		else if ($method == 'POST')
+		{
+			$data .= "\n\n".$query;
+		}
+
+		OAuthRequestLogger::setSent($data, $body);
+		OAuthRequestLogger::setReceived($txt);
+
+		return $txt;
+	}
+	
+	
+	/**
+	 * Parse an http response
+	 * 
+	 * @param string response the http text to parse
+	 * @return array (code=>http-code, headers=>http-headers, body=>body)
+	 */
+	protected function curl_parse ( $response )
+	{
+		if (empty($response))
+		{
+			return array();
+		}
+	
+		@list($headers,$body) = explode("\r\n\r\n",$response,2);
+		$lines = explode("\r\n",$headers);
+
+		if (preg_match('@^HTTP/[0-9]\.[0-9] +100@', $lines[0]))
+		{
+			/* HTTP/1.x 100 Continue
+			 * the real data is on the next line
+			 */
+			@list($headers,$body) = explode("\r\n\r\n",$body,2);
+			$lines = explode("\r\n",$headers);
+		}
+	
+		// first line of headers is the HTTP response code 
+		$http_line = array_shift($lines);
+		if (preg_match('@^HTTP/[0-9]\.[0-9] +([0-9]{3})@', $http_line, $matches))
+		{
+			$code = $matches[1];
+		}
+	
+		// put the rest of the headers in an array
+		$headers = array();
+		foreach ($lines as $l)
+		{
+			list($k, $v) = explode(': ', $l, 2);
+			$headers[strtolower($k)] = $v;
+		}
+	
+		return array( 'code' => $code, 'headers' => $headers, 'body' => $body);
+	}
+
+
+	/**
+	 * Mix the given headers into the headers that were given to curl
+	 * 
+	 * @param array curl_options
+	 * @param array extra_headers
+	 * @return array new curl options
+	 */
+	protected function prepareCurlOptions ( $curl_options, $extra_headers )
+	{
+		$hs = array();
+		if (!empty($curl_options[CURLOPT_HTTPHEADER]) && is_array($curl_options[CURLOPT_HTTPHEADER]))
+		{
+			foreach ($curl_options[CURLOPT_HTTPHEADER] as $h)
+			{
+				list($opt, $val) = explode(':', $h, 2);
+				$opt      = str_replace(' ', '-', ucwords(str_replace('-', ' ', $opt)));
+				$hs[$opt] = $val;
+			}
+		}
+
+		$curl_options[CURLOPT_HTTPHEADER] = array();
+		$hs = array_merge($hs, $extra_headers);		
+		foreach ($hs as $h => $v)
+		{
+			$curl_options[CURLOPT_HTTPHEADER][] = "$h: $v";
+		}
+		return $curl_options;
+	}
+}
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthServer.php b/mod/oauth_api/vendors/oauth/library/OAuthServer.php
new file mode 100644
index 000000000..d86cc5f14
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthServer.php
@@ -0,0 +1,232 @@
+<?php
+
+/**
+ * Server layer over the OAuthRequest handler
+ * 
+ * @version $Id: OAuthServer.php 51 2008-10-15 15:15:47Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 27, 2007 12:36:38 PM
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once 'OAuthRequestVerifier.php';
+
+class OAuthServer extends OAuthRequestVerifier
+{
+	/**
+	 * Handle the request_token request.
+	 * Returns the new request token and request token secret.
+	 * 
+	 * TODO: add correct result code to exception
+	 * 
+	 * @return string 	returned request token, false on an error
+	 */
+	public function requestToken ()
+	{
+		OAuthRequestLogger::start($this);
+		try
+		{
+			$this->verify(false);
+			
+			$options = array();
+			$ttl     = $this->getParam('xoauth_token_ttl', false);
+			if ($ttl)
+			{
+				$options['token_ttl'] = $ttl;
+			}
+
+			// Create a request token
+			$store  = elggconnect_get_oauth_store();//OAuthStore::instance();
+			$token  = $store->addConsumerRequestToken($this->getParam('oauth_consumer_key', true), $options);
+			$result = 'oauth_token='.$this->urlencode($token['token'])
+					.'&oauth_token_secret='.$this->urlencode($token['token_secret']);
+
+			if (!empty($token['token_ttl']))
+			{
+				$result .= '&xoauth_token_ttl='.$this->urlencode($token['token_ttl']);
+			}
+
+			$request_token = $token['token'];
+					
+			header('HTTP/1.1 200 OK');
+			header('Content-Length: '.strlen($result));
+			header('Content-Type: application/x-www-form-urlencoded');
+
+			echo $result;
+		}
+		catch (OAuthException $e)
+		{
+			$request_token = false;
+
+			header('HTTP/1.1 401 Unauthorized');
+			header('Content-Type: text/plain');
+
+			echo "OAuth Verification Failed: " . $e->getMessage();
+		}
+
+		OAuthRequestLogger::flush();
+		return $request_token;
+	}
+	
+	
+	/**
+	 * Verify the start of an authorization request.  Verifies if the request token is valid.
+	 * Next step is the method authorizeFinish()
+	 * 
+	 * Nota bene: this stores the current token, consumer key and callback in the _SESSION
+	 * 
+	 * @exception OAuthException thrown when not a valid request
+	 * @return array token description
+	 */
+	public function authorizeVerify ( )
+	{
+		OAuthRequestLogger::start($this);
+
+		$store = elggconnect_get_oauth_store();//OAuthStore::instance();
+		$token = $this->getParam('oauth_token', true);
+		$rs    = $store->getConsumerRequestToken($token);
+		if (empty($rs))
+		{
+			throw new OAuthException('Unknown request token "'.$token.'"');
+		}
+
+		// We need to remember the callback		
+		if (	empty($_SESSION['verify_oauth_token'])
+			||	strcmp($_SESSION['verify_oauth_token'], $rs['token']))
+		{
+			$_SESSION['verify_oauth_token'] 		= $rs['token'];
+			$_SESSION['verify_oauth_consumer_key']	= $rs['consumer_key'];
+			$_SESSION['verify_oauth_callback']		= $this->getParam('oauth_callback', true);
+		}
+		OAuthRequestLogger::flush();
+		return $rs;
+	}
+	
+	
+	/**
+	 * Overrule this method when you want to display a nice page when
+	 * the authorization is finished.  This function does not know if the authorization was
+	 * succesfull, you need to check the token in the database.
+	 * 
+	 * @param boolean authorized	if the current token (oauth_token param) is authorized or not
+	 * @param int user_id			user for which the token was authorized (or denied)
+	 */
+	public function authorizeFinish ( $authorized, $user_id )
+	{
+		OAuthRequestLogger::start($this);
+
+		$token = $this->getParam('oauth_token', true);
+		if (	isset($_SESSION['verify_oauth_token']) 
+			&&	$_SESSION['verify_oauth_token'] == $token)
+		{
+			// Flag the token as authorized, or remove the token when not authorized
+			$store = elggconnect_get_oauth_store();//OAuthStore::instance();
+
+			// Fetch the referrer host from the oauth callback parameter
+			$referrer_host  = '';
+			$oauth_callback = false;
+			if (!empty($_SESSION['verify_oauth_callback']))
+			{
+				$oauth_callback = $_SESSION['verify_oauth_callback'];
+				$ps = parse_url($oauth_callback);
+				if (isset($ps['host']))
+				{
+					$referrer_host = $ps['host'];
+				}
+			}
+			
+			if ($authorized)
+			{
+				OAuthRequestLogger::addNote('Authorized token "'.$token.'" for user '.$user_id.' with referrer "'.$referrer_host.'"');
+				$store->authorizeConsumerRequestToken($token, $user_id, $referrer_host);
+			}
+			else
+			{
+				OAuthRequestLogger::addNote('Authorization rejected for token "'.$token.'" for user '.$user_id."\nToken has been deleted");
+				$store->deleteConsumerRequestToken($token);
+			}
+			
+			if (!empty($oauth_callback))
+			{
+				$this->redirect($oauth_callback, array('oauth_token'=>rawurlencode($token)));
+			}
+		}
+		OAuthRequestLogger::flush();
+	}
+	
+	
+	/**
+	 * Exchange a request token for an access token.
+	 * The exchange is only succesful iff the request token has been authorized.
+	 * 
+	 * Never returns, calls exit() when token is exchanged or when error is returned.
+	 */
+	public function accessToken ()
+	{
+		OAuthRequestLogger::start($this);
+
+		try
+		{
+			$this->verify('request');
+
+			$options = array();
+			$ttl     = $this->getParam('xoauth_token_ttl', false);
+			if ($ttl)
+			{
+				$options['token_ttl'] = $ttl;
+			}
+			
+			$store  = elggconnect_get_oauth_store();//OAuthStore::instance();
+			$token  = $store->exchangeConsumerRequestForAccessToken($this->getParam('oauth_token', true), $options);
+			$result = 'oauth_token='.$this->urlencode($token['token'])
+					.'&oauth_token_secret='.$this->urlencode($token['token_secret']);
+					
+			if (!empty($token['token_ttl']))
+			{
+				$result .= '&xoauth_token_ttl='.$this->urlencode($token['token_ttl']);
+			}
+					
+			header('HTTP/1.1 200 OK');
+			header('Content-Length: '.strlen($result));
+			header('Content-Type: application/x-www-form-urlencoded');
+
+			echo $result;
+		}
+		catch (OAuthException $e)
+		{
+			header('HTTP/1.1 401 Access Denied');
+			header('Content-Type: text/plain');
+
+			echo "OAuth Verification Failed: " . $e->getMessage();
+		}
+		
+		OAuthRequestLogger::flush();
+		exit();
+	}	
+}
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/OAuthStore.php b/mod/oauth_api/vendors/oauth/library/OAuthStore.php
new file mode 100644
index 000000000..1841ab5fa
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/OAuthStore.php
@@ -0,0 +1,86 @@
+<?php
+
+/**
+ * Storage container for the oauth credentials, both server and consumer side.
+ * This is the factory to select the store you want to use
+ * 
+ * @version $Id: OAuthStore.php 49 2008-10-01 09:43:19Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 16, 2007 4:03:30 PM
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__) . '/OAuthException.php';
+
+class OAuthStore
+{
+	static private $instance = false;
+
+	/**
+	 * Request an instance of the OAuthStore
+	 */
+	public static function instance ( $store = 'MySQL', $options = array() )
+	{
+	    if (!OAuthStore::$instance)
+	    {
+			// Select the store you want to use
+			if (strpos($store, '/') === false)
+			{
+				$class = 'OAuthStore'.$store;
+				$file  = dirname(__FILE__) . '/store/'.$class.'.php';
+			}
+			else
+			{
+				$file  = $store;
+				$store = basename($file, '.php');
+				$class = $store;
+			}
+
+			if (is_file($file))
+			{
+				require_once $file;
+				
+				if (class_exists($class))
+				{
+					OAuthStore::$instance = new $class($options);
+				}
+				else
+				{
+					throw new OAuthException('Could not find class '.$class.' in file '.$file);
+				}
+			}
+			else
+			{
+				throw new OAuthException('No OAuthStore for '.$store.' (file '.$file.')');
+			}
+	    }
+	    return OAuthStore::$instance;	
+	}
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/body/OAuthBodyContentDisposition.php b/mod/oauth_api/vendors/oauth/library/body/OAuthBodyContentDisposition.php
new file mode 100644
index 000000000..84123b6d0
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/body/OAuthBodyContentDisposition.php
@@ -0,0 +1,129 @@
+<?php
+
+/**
+ * Add the extra headers for a PUT or POST request with a file.
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+class OAuthBodyContentDisposition
+{
+    /**
+     * Builds the request string.
+     * 
+     * The files array can be a combination of the following (either data or file):
+     * 
+     * file => "path/to/file", filename=, mime=, data=
+     *
+     * @param array files		(name => filedesc) (not urlencoded)
+     * @return array (headers, body)
+     */
+    static function encodeBody ( $files )
+    {
+    	$headers  	= array();
+		$body		= null;
+
+		// 1. Add all the files to the post
+		if (!empty($files))
+		{
+			foreach ($files as $name => $f)
+			{
+				$data     = false;
+				$filename = false;
+
+				if (isset($f['filename']))
+				{
+					$filename = $f['filename'];
+				}
+
+				if (!empty($f['file']))
+				{
+					$data = @file_get_contents($f['file']);
+					if ($data === false)
+					{
+						throw new OAuthException(sprintf('Could not read the file "%s" for request body', $f['file']));
+					}
+					if (empty($filename))
+					{
+						$filename = basename($f['file']);
+					}
+				}
+				else if (isset($f['data']))
+				{
+					$data = $f['data'];
+				}
+				
+				// When there is data, add it as a request body, otherwise silently skip the upload
+				if ($data !== false)
+				{
+					if (isset($headers['Content-Disposition']))
+					{
+						throw new OAuthException('Only a single file (or data) allowed in a signed PUT/POST request body.');
+					}
+
+					if (empty($filename))
+					{
+						$filename = 'untitled';
+					}
+					$mime  = !empty($f['mime']) ? $f['mime'] : 'application/octet-stream';
+					
+					$headers['Content-Disposition'] = 'attachment; filename="'.OAuthBodyContentDisposition::encodeParameterName($filename).'"';
+					$headers['Content-Type']		= $mime;
+
+					$body = $data;
+				}
+				
+			}
+
+			// When we have a body, add the content-length
+			if (!is_null($body))
+			{
+				$headers['Content-Length'] = strlen($body);
+			}
+		}
+		return array($headers, $body);
+	}
+	
+	
+	/**
+	 * Encode a parameter's name for use in a multipart header.
+	 * For now we do a simple filter that removes some unwanted characters.
+	 * We might want to implement RFC1522 here.  See http://tools.ietf.org/html/rfc1522
+	 * 
+	 * @param string name
+	 * @return string
+	 */
+	static function encodeParameterName ( $name )
+	{
+		return preg_replace('/[^\x20-\x7f]|"/', '-', $name);
+	}
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/body/OAuthBodyMultipartFormdata.php b/mod/oauth_api/vendors/oauth/library/body/OAuthBodyMultipartFormdata.php
new file mode 100644
index 000000000..048fdeb63
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/body/OAuthBodyMultipartFormdata.php
@@ -0,0 +1,143 @@
+<?php
+
+/**
+ * Create the body for a multipart/form-data message.
+ * 
+ * @version $Id: OAuthMultipartFormdata.php 6 2008-02-13 12:35:09Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Jan 31, 2008 12:50:05 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+class OAuthBodyMultipartFormdata
+{
+    /**
+     * Builds the request string.
+     * 
+     * The files array can be a combination of the following (either data or file):
+     * 
+     * file => "path/to/file", filename=, mime=, data=
+     *
+     * @param array params		(name => value) (all names and values should be urlencoded)
+     * @param array files		(name => filedesc) (not urlencoded)
+     * @return array (headers, body)
+     */
+    static function encodeBody ( $params, $files )
+    {
+    	$headers  	= array();
+		$body		= '';
+		$boundary	= 'OAuthRequester_'.md5(uniqid('multipart') . microtime());
+		$headers['Content-Type'] = 'multipart/form-data; boundary=' . $boundary;
+
+
+		// 1. Add the parameters to the post
+		if (!empty($params))
+		{
+			foreach ($params as $name => $value)
+			{
+				$body .= '--'.$boundary."\r\n";
+				$body .= 'Content-Disposition: form-data; name="'.OAuthBodyMultipartFormdata::encodeParameterName(rawurldecode($name)).'"';
+				$body .= "\r\n\r\n";
+				$body .= urldecode($value);
+				$body .= "\r\n";
+			}
+		}
+		
+		// 2. Add all the files to the post
+		if (!empty($files))
+		{
+			$untitled = 1;
+			
+			foreach ($files as $name => $f)
+			{
+				$data     = false;
+				$filename = false;
+
+				if (isset($f['filename']))
+				{
+					$filename = $f['filename'];
+				}
+
+				if (!empty($f['file']))
+				{
+					$data = @file_get_contents($f['file']);
+					if ($data === false)
+					{
+						throw new OAuthException(sprintf('Could not read the file "%s" for form-data part', $f['file']));
+					}
+					if (empty($filename))
+					{
+						$filename = basename($f['file']);
+					}
+				}
+				else if (isset($f['data']))
+				{
+					$data = $f['data'];
+				}
+				
+				// When there is data, add it as a form-data part, otherwise silently skip the upload
+				if ($data !== false)
+				{
+					if (empty($filename))
+					{
+						$filename = sprintf('untitled-%d', $untitled++);
+					}
+					$mime  = !empty($f['mime']) ? $f['mime'] : 'application/octet-stream';
+					$body .= '--'.$boundary."\r\n";
+					$body .= 'Content-Disposition: form-data; name="'.OAuthBodyMultipartFormdata::encodeParameterName($name).'"; filename="'.OAuthBodyMultipartFormdata::encodeParameterName($filename).'"'."\r\n";
+					$body .= 'Content-Type: '.$mime;
+					$body .= "\r\n\r\n";
+					$body .= $data;
+					$body .= "\r\n";
+				}
+				
+			}
+		}
+		$body .= '--'.$boundary."--\r\n";
+
+		$headers['Content-Length'] = strlen($body);
+		return array($headers, $body);
+	}
+	
+	
+	/**
+	 * Encode a parameter's name for use in a multipart header.
+	 * For now we do a simple filter that removes some unwanted characters.
+	 * We might want to implement RFC1522 here.  See http://tools.ietf.org/html/rfc1522
+	 * 
+	 * @param string name
+	 * @return string
+	 */
+	static function encodeParameterName ( $name )
+	{
+		return preg_replace('/[^\x20-\x7f]|"/', '-', $name);
+	}
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/discovery/xrds_parse.php b/mod/oauth_api/vendors/oauth/library/discovery/xrds_parse.php
new file mode 100644
index 000000000..c9cf94997
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/discovery/xrds_parse.php
@@ -0,0 +1,304 @@
+<?php
+
+/**
+ * Parse a XRDS discovery description to a simple array format.
+ * 
+ * For now a simple parse of the document. Better error checking
+ * in a later version.
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/* example of use:
+
+header('content-type: text/plain');
+$file = file_get_contents('../../test/discovery/xrds-magnolia.xrds');
+$xrds = xrds_parse($file);
+print_r($xrds);
+
+ */ 
+
+/**
+ * Parse the xrds file in the argument.  The xrds description must have been 
+ * fetched via curl or something else.
+ * 
+ * TODO: more robust checking, support for more service documents
+ * TODO: support for URIs to definition instead of local xml:id
+ * 
+ * @param string data contents of xrds file
+ * @exception Exception when the file is in an unknown format
+ * @return array
+ */
+function xrds_parse ( $data )
+{
+	$oauth = array();
+	$doc   = @DOMDocument::loadXML($data);
+	if ($doc === false)
+	{
+		throw new Exception('Error in XML, can\'t load XRDS document');
+	}
+	
+	$xpath = new DOMXPath($doc);
+	$xpath->registerNamespace('xrds',	'xri://$xrds');
+	$xpath->registerNamespace('xrd',  	'xri://$XRD*($v*2.0)');
+	$xpath->registerNamespace('simple', 'http://xrds-simple.net/core/1.0');
+
+	// Yahoo! uses this namespace, with lowercase xrd in it
+	$xpath->registerNamespace('xrd2',  	'xri://$xrd*($v*2.0)');
+
+	$uris = xrds_oauth_service_uris($xpath);
+
+	foreach ($uris as $uri)
+	{
+		// TODO: support uris referring to service documents outside this one
+		if ($uri{0} == '#')
+		{
+			$id    = substr($uri, 1);
+			$oauth = xrds_xrd_oauth($xpath, $id);
+			if (is_array($oauth) && !empty($oauth))
+			{
+				return $oauth;
+			}
+		}
+	}
+
+	return false;
+}
+
+
+/**
+ * Parse a XRD definition for OAuth and return the uris etc.
+ * 
+ * @param XPath xpath
+ * @param string id
+ * @return array
+ */
+function xrds_xrd_oauth ( $xpath, $id )
+{
+	$oauth = array();
+	$xrd   = $xpath->query('//xrds:XRDS/xrd:XRD[@xml:id="'.$id.'"]');
+	if ($xrd->length == 0)
+	{
+		// Yahoo! uses another namespace
+		$xrd = $xpath->query('//xrds:XRDS/xrd2:XRD[@xml:id="'.$id.'"]');
+	}
+
+	if ($xrd->length >= 1)
+	{
+		$x 		  = $xrd->item(0);
+		$services = array();
+		foreach ($x->childNodes as $n)
+		{
+			switch ($n->nodeName)
+			{
+			case 'Type':
+				if ($n->nodeValue != 'xri://$xrds*simple')
+				{
+					// Not a simple XRDS document
+					return false;
+				}
+				break;
+			case 'Expires':
+				$oauth['expires'] = $n->nodeValue;
+				break;
+			case 'Service':
+				list($type,$service) = xrds_xrd_oauth_service($n);
+				if ($type)
+				{
+					$services[$type][xrds_priority($n)][] = $service;
+				}
+				break;
+			}
+		}
+		
+		// Flatten the services on priority
+		foreach ($services as $type => $service)
+		{
+			$oauth[$type] = xrds_priority_flatten($service);
+		}
+	}
+	else
+	{
+		$oauth = false;
+	}
+	return $oauth;
+}
+
+
+/**
+ * Parse a service definition for OAuth in a simple xrd element
+ * 
+ * @param DOMElement n
+ * @return array (type, service desc)
+ */
+function xrds_xrd_oauth_service ( $n )
+{
+	$service = array(
+				'uri'				=> '',
+				'signature_method'	=> array(),
+				'parameters'		=> array()
+				);
+
+	$type    = false;
+	foreach ($n->childNodes as $c)
+	{
+		$name  = $c->nodeName;
+		$value = $c->nodeValue;
+		
+		if ($name == 'URI')
+		{
+			$service['uri'] = $value;
+		}
+		else if ($name == 'Type')
+		{
+			if (strncmp($value, 'http://oauth.net/core/1.0/endpoint/', 35) == 0)
+			{
+				$type = basename($value);
+			}
+			else if (strncmp($value, 'http://oauth.net/core/1.0/signature/', 36) == 0)
+			{
+				$service['signature_method'][] = basename($value);
+			}
+			else if (strncmp($value, 'http://oauth.net/core/1.0/parameters/', 37) == 0)
+			{
+				$service['parameters'][] = basename($value);
+			}
+			else if (strncmp($value, 'http://oauth.net/discovery/1.0/consumer-identity/', 49) == 0)
+			{
+				$type = 'consumer_identity';
+				$service['method'] = basename($value);
+				unset($service['signature_method']);
+				unset($service['parameters']);
+			}
+			else
+			{
+				$service['unknown'][] = $value;
+			}
+		}
+		else if ($name == 'LocalID')
+		{
+			$service['consumer_key'] = $value;
+		}
+		else if ($name{0} != '#')
+		{
+			$service[strtolower($name)] = $value;
+		}
+	}
+	return array($type, $service);
+}
+
+
+/**
+ * Return the OAuth service uris in order of the priority.
+ * 
+ * @param XPath xpath
+ * @return array
+ */
+function xrds_oauth_service_uris ( $xpath )
+{
+	$uris	   = array();
+	$xrd_oauth = $xpath->query('//xrds:XRDS/xrd:XRD/xrd:Service/xrd:Type[.=\'http://oauth.net/discovery/1.0\']');
+	if ($xrd_oauth->length > 0)
+	{
+		$service = array();
+		foreach ($xrd_oauth as $xo)
+		{
+			// Find the URI of the service definition
+			$cs = $xo->parentNode->childNodes;
+			foreach ($cs as $c)
+			{
+				if ($c->nodeName == 'URI')
+				{
+					$prio 			  = xrds_priority($xo);
+					$service[$prio][] = $c->nodeValue;
+				}
+			}
+		}
+		$uris = xrds_priority_flatten($service);
+	}
+	return $uris;
+}
+
+
+
+/**
+ * Flatten an array according to the priority
+ * 
+ * @param array  ps buckets per prio
+ * @return array one dimensional array
+ */
+function xrds_priority_flatten ( $ps )
+{
+	$prio = array();
+	$null = array();
+	ksort($ps);
+	foreach ($ps as $idx => $bucket)
+	{
+		if (!empty($bucket))
+		{
+			if ($idx == 'null')
+			{
+				$null = $bucket;
+			}
+			else
+			{
+				$prio = array_merge($prio, $bucket);
+			}
+		}
+	}
+	$prio = array_merge($prio, $bucket);
+	return $prio;
+}
+
+
+/**
+ * Fetch the priority of a element
+ * 
+ * @param DOMElement elt
+ * @return mixed		'null' or int
+ */
+function xrds_priority ( $elt )
+{
+	if ($elt->hasAttribute('priority'))
+	{
+		$prio = $elt->getAttribute('priority');
+		if (is_numeric($prio))
+		{
+			$prio = intval($prio);
+		}
+	}
+	else
+	{
+		$prio = 'null';
+	}
+	return $prio;
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+ 
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/discovery/xrds_parse.txt b/mod/oauth_api/vendors/oauth/library/discovery/xrds_parse.txt
new file mode 100644
index 000000000..fd867ea9f
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/discovery/xrds_parse.txt
@@ -0,0 +1,101 @@
+The xrds_parse.php script contains the function:
+
+	 function xrds_parse ( $data. )
+
+$data Contains the contents of a XRDS XML file.
+When the data is invalid XML then this will throw an exception.
+
+After parsing a XRDS definition it will return a datastructure much like the one below.
+
+Array
+(
+    [expires] => 2008-04-13T07:34:58Z
+    [request] => Array
+        (
+            [0] => Array
+                (
+                    [uri] => https://ma.gnolia.com/oauth/get_request_token
+                    [signature_method] => Array
+                        (
+                            [0] => HMAC-SHA1
+                            [1] => RSA-SHA1
+                            [2] => PLAINTEXT
+                        )
+
+                    [parameters] => Array
+                        (
+                            [0] => auth-header
+                            [1] => post-body
+                            [2] => uri-query
+                        )
+                )
+        )
+
+    [authorize] => Array
+        (
+            [0] => Array
+                (
+                    [uri] => http://ma.gnolia.com/oauth/authorize
+                    [signature_method] => Array
+                        (
+                        )
+
+                    [parameters] => Array
+                        (
+                            [0] => auth-header
+                            [1] => uri-query
+                        )
+                )
+        )
+
+    [access] => Array
+        (
+            [0] => Array
+                (
+                    [uri] => https://ma.gnolia.com/oauth/get_access_token
+                    [signature_method] => Array
+                        (
+                            [0] => HMAC-SHA1
+                            [1] => RSA-SHA1
+                            [2] => PLAINTEXT
+                        )
+
+                    [parameters] => Array
+                        (
+                            [0] => auth-header
+                            [1] => post-body
+                            [2] => uri-query
+                        )
+                )
+        )
+
+    [resource] => Array
+        (
+            [0] => Array
+                (
+                    [uri] => 
+                    [signature_method] => Array
+                        (
+                            [0] => HMAC-SHA1
+                            [1] => RSA-SHA1
+                        )
+
+                    [parameters] => Array
+                        (
+                            [0] => auth-header
+                            [1] => post-body
+                            [2] => uri-query
+                        )
+                )
+        )
+
+    [consumer_identity] => Array
+        (
+            [0] => Array
+                (
+                    [uri] => http://ma.gnolia.com/applications/new
+                    [method] => oob
+                )
+        )
+)
+
diff --git a/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod.class.php b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod.class.php
new file mode 100644
index 000000000..34ccb428c
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod.class.php
@@ -0,0 +1,69 @@
+<?php
+
+/**
+ * Interface for OAuth signature methods
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Sep 8, 2008 12:04:35 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+abstract class OAuthSignatureMethod
+{
+	/**
+	 * Return the name of this signature
+	 * 
+	 * @return string
+	 */
+	abstract public function name();
+	
+	/**
+	 * Return the signature for the given request
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @return string  
+	 */
+	abstract public function signature ( $request, $base_string, $consumer_secret, $token_secret );
+
+	/**
+	 * Check if the request signature corresponds to the one calculated for the request.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string	data to be signed, usually the base string, can be a request body
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @param string signature		from the request, still urlencoded
+	 * @return string
+	 */
+	abstract public function verify ( $request, $base_string, $consumer_secret, $token_secret, $signature );
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_HMAC_SHA1.php b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_HMAC_SHA1.php
new file mode 100644
index 000000000..4bc949c10
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_HMAC_SHA1.php
@@ -0,0 +1,115 @@
+<?php
+
+/**
+ * OAuth signature implementation using HMAC-SHA1
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Sep 8, 2008 12:21:19 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+require_once dirname(__FILE__).'/OAuthSignatureMethod.class.php';
+
+
+class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod
+{
+	public function name ()
+	{
+		return 'HMAC-SHA1';
+	}
+
+
+	/**
+	 * Calculate the signature using HMAC-SHA1
+	 * This function is copyright Andy Smith, 2007.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @return string  
+	 */
+	function signature ( $request, $base_string, $consumer_secret, $token_secret )
+	{
+		$key = $request->urlencode($consumer_secret).'&'.$request->urlencode($token_secret);
+		if (function_exists('hash_hmac'))
+		{
+			$signature = base64_encode(hash_hmac("sha1", $base_string, $key, true));
+		}
+		else
+		{
+		    $blocksize	= 64;
+		    $hashfunc	= 'sha1';
+		    if (strlen($key) > $blocksize)
+		    {
+		        $key = pack('H*', $hashfunc($key));
+		    }
+		    $key	= str_pad($key,$blocksize,chr(0x00));
+		    $ipad	= str_repeat(chr(0x36),$blocksize);
+		    $opad	= str_repeat(chr(0x5c),$blocksize);
+		    $hmac 	= pack(
+		                'H*',$hashfunc(
+		                    ($key^$opad).pack(
+		                        'H*',$hashfunc(
+		                            ($key^$ipad).$base_string
+		                        )
+		                    )
+		                )
+		            );
+			$signature = base64_encode($hmac);
+		}
+		return $request->urlencode($signature);
+	}
+
+
+	/**
+	 * Check if the request signature corresponds to the one calculated for the request.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string	data to be signed, usually the base string, can be a request body
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @param string signature		from the request, still urlencoded
+	 * @return string
+	 */
+	public function verify ( $request, $base_string, $consumer_secret, $token_secret, $signature )
+	{
+		$a = $request->urldecode($signature);
+		$b = $request->urldecode($this->signature($request, $base_string, $consumer_secret, $token_secret));
+
+		// We have to compare the decoded values
+		$valA  = base64_decode($a);
+		$valB  = base64_decode($b);
+
+		// Crude binary comparison
+		return rawurlencode($a) == rawurlencode($b);
+	}
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_MD5.php b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_MD5.php
new file mode 100644
index 000000000..6f593a47f
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_MD5.php
@@ -0,0 +1,95 @@
+<?php
+
+/**
+ * OAuth signature implementation using MD5
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Sep 8, 2008 12:09:43 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__).'/OAuthSignatureMethod.class.php';
+
+
+class OAuthSignatureMethod_MD5 extends OAuthSignatureMethod
+{
+	public function name ()
+	{
+		return 'MD5';
+	}
+
+
+	/**
+	 * Calculate the signature using MD5
+	 * Binary md5 digest, as distinct from PHP's built-in hexdigest.
+	 * This function is copyright Andy Smith, 2007.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @return string  
+	 */
+	function signature ( $request, $base_string, $consumer_secret, $token_secret )
+	{
+		$s  .= '&'.$request->urlencode($consumer_secret).'&'.$request->urlencode($token_secret);
+		$md5 = md5($base_string);
+		$bin = '';
+		
+		for ($i = 0; $i < strlen($md5); $i += 2)
+		{
+		    $bin .= chr(hexdec($md5{$i+1}) + hexdec($md5{$i}) * 16);
+		}
+		return $request->urlencode(base64_encode($bin));
+	}
+
+
+	/**
+	 * Check if the request signature corresponds to the one calculated for the request.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string	data to be signed, usually the base string, can be a request body
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @param string signature		from the request, still urlencoded
+	 * @return string
+	 */
+	public function verify ( $request, $base_string, $consumer_secret, $token_secret, $signature )
+	{
+		$a = $request->urldecode($signature);
+		$b = $request->urldecode($this->signature($request, $base_string, $consumer_secret, $token_secret));
+
+		// We have to compare the decoded values
+		$valA  = base64_decode($a);
+		$valB  = base64_decode($b);
+
+		// Crude binary comparison
+		return rawurlencode($a) == rawurlencode($b);
+	}
+}
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_PLAINTEXT.php b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_PLAINTEXT.php
new file mode 100644
index 000000000..92ef30867
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_PLAINTEXT.php
@@ -0,0 +1,80 @@
+<?php
+
+/**
+ * OAuth signature implementation using PLAINTEXT
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Sep 8, 2008 12:09:43 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__).'/OAuthSignatureMethod.class.php';
+
+
+class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod
+{
+	public function name ()
+	{
+		return 'PLAINTEXT';
+	}
+
+
+	/**
+	 * Calculate the signature using PLAINTEXT
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @return string  
+	 */
+	function signature ( $request, $base_string, $consumer_secret, $token_secret )
+	{
+		return $request->urlencode($request->urlencode($consumer_secret).'&'.$request->urlencode($token_secret));
+	}
+
+
+	/**
+	 * Check if the request signature corresponds to the one calculated for the request.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string	data to be signed, usually the base string, can be a request body
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @param string signature		from the request, still urlencoded
+	 * @return string
+	 */
+	public function verify ( $request, $base_string, $consumer_secret, $token_secret, $signature )
+	{
+		$a = $request->urldecode($signature);
+		$b = $request->urldecode($this->signature($request, $base_string, $consumer_secret, $token_secret));
+
+		return $request->urldecode($a) == $request->urldecode($b);
+	}
+}
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_RSA_SHA1.php b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_RSA_SHA1.php
new file mode 100644
index 000000000..3bbde7d90
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/signature_method/OAuthSignatureMethod_RSA_SHA1.php
@@ -0,0 +1,136 @@
+<?php
+
+/**
+ * OAuth signature implementation using PLAINTEXT
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Sep 8, 2008 12:00:14 PM
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod
+{
+	public function name() 
+	{
+		return 'RSA-SHA1';
+	}
+	
+
+	/**
+	 * Fetch the public CERT key for the signature
+	 * 
+	 * @param OAuthRequest request
+	 * @return string public key
+	 */
+	protected function fetch_public_cert ( $request )
+	{
+		// not implemented yet, ideas are:
+		// (1) do a lookup in a table of trusted certs keyed off of consumer
+		// (2) fetch via http using a url provided by the requester
+		// (3) some sort of specific discovery code based on request
+		//
+		// either way should return a string representation of the certificate
+		throw OAuthException("OAuthSignatureMethod_RSA_SHA1::fetch_public_cert not implemented");
+	}
+	
+	
+	/**
+	 * Fetch the private CERT key for the signature
+	 * 
+	 * @param OAuthRequest request
+	 * @return string private key
+	 */
+	protected function fetch_private_cert ( $request )
+	{
+		// not implemented yet, ideas are:
+		// (1) do a lookup in a table of trusted certs keyed off of consumer
+		//
+		// either way should return a string representation of the certificate
+		throw OAuthException("OAuthSignatureMethod_RSA_SHA1::fetch_private_cert not implemented");
+	}
+
+
+	/**
+	 * Calculate the signature using RSA-SHA1
+	 * This function is copyright Andy Smith, 2008.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @return string  
+	 */
+	public function signature ( $request, $base_string, $consumer_secret, $token_secret )
+	{
+		// Fetch the private key cert based on the request
+		$cert = $this->fetch_private_cert($request);
+		
+		// Pull the private key ID from the certificate
+		$privatekeyid = openssl_get_privatekey($cert);
+		
+		// Sign using the key
+		$sig = false;
+		$ok  = openssl_sign($base_string, $sig, $privatekeyid);   
+		
+		// Release the key resource
+		openssl_free_key($privatekeyid);
+		  
+		return $request->urlencode(base64_encode($sig));
+	}
+	
+
+	/**
+	 * Check if the request signature is the same as the one calculated for the request.
+	 * 
+	 * @param OAuthRequest request
+	 * @param string base_string
+	 * @param string consumer_secret
+	 * @param string token_secret
+	 * @param string signature
+	 * @return string  
+	 */
+	public function verify ( $request, $base_string, $consumer_secret, $token_secret, $signature )
+	{
+		$decoded_sig = base64_decode($request->urldecode($signature));
+		  
+		// Fetch the public key cert based on the request
+		$cert = $this->fetch_public_cert($request);
+		
+		// Pull the public key ID from the certificate
+		$publickeyid = openssl_get_publickey($cert);
+		
+		// Check the computed signature against the one passed in the query
+		$ok = openssl_verify($base_string, $decoded_sig, $publickeyid);   
+		
+		// Release the key resource
+		openssl_free_key($publickeyid);
+		return $ok == 1;
+	}
+
+}
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/store/OAuthStoreAbstract.class.php b/mod/oauth_api/vendors/oauth/library/store/OAuthStoreAbstract.class.php
new file mode 100644
index 000000000..e7cca981a
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/store/OAuthStoreAbstract.class.php
@@ -0,0 +1,149 @@
+<?php
+
+/**
+ * Abstract base class for OAuthStore implementations
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+abstract class OAuthStoreAbstract
+{
+	abstract public function getSecretsForVerify ( $consumer_key, $token, $token_type = 'access' );
+	abstract public function getSecretsForSignature ( $uri, $user_id );
+	abstract public function getServerTokenSecrets ( $consumer_key, $token, $token_type, $user_id, $name = '' );
+	abstract public function addServerToken ( $consumer_key, $token_type, $token, $token_secret, $user_id, $options = array() );
+
+	abstract public function deleteServer ( $consumer_key, $user_id, $user_is_admin = false );
+	abstract public function getServer( $consumer_key, $user_id, $user_is_admin = false );
+	abstract public function getServerForUri ( $uri, $user_id );
+	abstract public function listServerTokens ( $user_id );
+	abstract public function countServerTokens ( $consumer_key );
+	abstract public function getServerToken ( $consumer_key, $token, $user_id );
+	abstract public function deleteServerToken ( $consumer_key, $token, $user_id, $user_is_admin = false );
+	abstract public function listServers ( $q = '', $user_id );
+	abstract public function updateServer ( $server, $user_id, $user_is_admin = false );
+
+	abstract public function updateConsumer ( $consumer, $user_id, $user_is_admin = false );
+	abstract public function deleteConsumer ( $consumer_key, $user_id, $user_is_admin = false );
+	abstract public function getConsumer ( $consumer_key, $user_id, $user_is_admin = false );
+	abstract public function getConsumerStatic ();
+
+	abstract public function addConsumerRequestToken ( $consumer_key, $options = array() );
+	abstract public function getConsumerRequestToken ( $token );
+	abstract public function deleteConsumerRequestToken ( $token );
+	abstract public function authorizeConsumerRequestToken ( $token, $user_id, $referrer_host = '' );
+	abstract public function countConsumerAccessTokens ( $consumer_key );
+	abstract public function exchangeConsumerRequestForAccessToken ( $token, $options = array() );
+	abstract public function getConsumerAccessToken ( $token, $user_id );
+	abstract public function deleteConsumerAccessToken ( $token, $user_id, $user_is_admin = false );
+	abstract public function setConsumerAccessTokenTtl ( $token, $ttl );
+	
+	abstract public function listConsumers ( $user_id );
+	abstract public function listConsumerTokens ( $user_id );
+
+	abstract public function checkServerNonce ( $consumer_key, $token, $timestamp, $nonce );
+	
+	abstract public function addLog ( $keys, $received, $sent, $base_string, $notes, $user_id = null );
+	abstract public function listLog ( $options, $user_id );
+	
+	abstract public function install ();	
+	
+	/**
+	 * Fetch the current static consumer key for this site, create it when it was not found.
+	 * The consumer secret for the consumer key is always empty.
+	 * 
+	 * @return string	consumer key 
+	 */
+	
+	
+	/* ** Some handy utility functions ** */
+	
+	/**
+	 * Generate a unique key
+	 * 
+	 * @param boolean unique	force the key to be unique
+	 * @return string
+	 */
+	public function generateKey ( $unique = false )
+	{
+		$key = md5(uniqid(rand(), true));
+		if ($unique)
+		{
+			list($usec,$sec) = explode(' ',microtime());
+			$key .= dechex($usec).dechex($sec);
+		}
+		return $key;
+	}
+
+	/**
+	 * Check to see if a string is valid utf8
+	 * 
+	 * @param string $s
+	 * @return boolean
+	 */
+	protected function isUTF8 ( $s )
+	{
+		return preg_match('%(?:
+	       [\xC2-\xDF][\x80-\xBF]              # non-overlong 2-byte
+	       |\xE0[\xA0-\xBF][\x80-\xBF]         # excluding overlongs
+	       |[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}  # straight 3-byte
+	       |\xED[\x80-\x9F][\x80-\xBF]         # excluding surrogates
+	       |\xF0[\x90-\xBF][\x80-\xBF]{2}      # planes 1-3
+	       |[\xF1-\xF3][\x80-\xBF]{3}          # planes 4-15
+	       |\xF4[\x80-\x8F][\x80-\xBF]{2}      # plane 16
+	       )+%xs', $s);
+	}
+	
+	
+	/**
+	 * Make a string utf8, replacing all non-utf8 chars with a '.'
+	 * 
+	 * @param string
+	 * @return string
+	 */
+	protected function makeUTF8 ( $s )
+	{
+		if (function_exists('iconv'))
+		{
+			do
+			{
+				$ok   = true;
+				$text = @iconv('UTF-8', 'UTF-8//TRANSLIT', $s);
+				if (strlen($text) != strlen($s))
+				{
+					// Remove the offending character...
+					$s  = $text . '.' . substr($s, strlen($text) + 1);
+					$ok = false;
+				}
+			}
+			while (!$ok);
+		}
+		return $s;
+	}
+	
+}
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/store/OAuthStoreAnyMeta.php b/mod/oauth_api/vendors/oauth/library/store/OAuthStoreAnyMeta.php
new file mode 100644
index 000000000..9c971733f
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/store/OAuthStoreAnyMeta.php
@@ -0,0 +1,265 @@
+<?php
+
+/**
+ * Storage container for the oauth credentials, both server and consumer side.
+ * This file can only be used in conjunction with anyMeta.
+ * 
+ * @version $Id: OAuthStoreAnyMeta.php 49 2008-10-01 09:43:19Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 16, 2007 4:03:30 PM
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__) . '/../../../../core/inc/any_database.inc.php';
+require_once dirname(__FILE__) . '/OAuthStoreMySQL.php';
+
+
+class OAuthStoreAnymeta extends OAuthStoreMySQL
+{
+	/**
+	 * Construct the OAuthStoreAnymeta
+	 * 
+	 * @param array options
+	 */
+	function __construct ( $options = array() )
+	{
+		parent::__construct(array('conn' => any_db_conn()));
+	}
+
+
+	/**
+	 * Add an entry to the log table
+	 * 
+	 * @param array keys (osr_consumer_key, ost_token, ocr_consumer_key, oct_token)
+	 * @param string received
+	 * @param string sent
+	 * @param string base_string
+	 * @param string notes
+	 * @param int (optional) user_id
+	 */
+	public function addLog ( $keys, $received, $sent, $base_string, $notes, $user_id = null )
+	{
+		if (is_null($user_id) && isset($GLOBALS['any_auth']))
+		{
+			$user_id = $GLOBALS['any_auth']->getUserId();
+		}
+		parent::addLog($keys, $received, $sent, $base_string, $notes, $user_id);
+	}
+	
+	
+	/**
+	 * Get a page of entries from the log.  Returns the last 100 records
+	 * matching the options given.
+	 * 
+	 * @param array options
+	 * @param int user_id	current user
+	 * @return array log records
+	 */
+	public function listLog ( $options, $user_id )
+	{
+		$where = array();
+		$args  = array();
+		if (empty($options))
+		{
+			$where[] = 'olg_usa_id_ref = %d';
+			$args[]  = $user_id;
+		}
+		else
+		{
+			foreach ($options as $option => $value)
+			{
+				if (strlen($value) > 0)
+				{
+					switch ($option)
+					{
+					case 'osr_consumer_key':
+					case 'ocr_consumer_key':
+					case 'ost_token':
+					case 'oct_token':
+						$where[] = 'olg_'.$option.' = \'%s\'';
+						$args[]  = $value;	
+						break;				
+					}
+				}
+			}
+			
+			$where[] = '(olg_usa_id_ref IS NULL OR olg_usa_id_ref = %d)';
+			$args[]  = $user_id;
+		}
+
+		$rs = any_db_query_all_assoc('
+					SELECT olg_id,
+							olg_osr_consumer_key 	AS osr_consumer_key,
+							olg_ost_token			AS ost_token,
+							olg_ocr_consumer_key	AS ocr_consumer_key,
+							olg_oct_token			AS oct_token,
+							olg_usa_id_ref			AS user_id,
+							olg_received			AS received,
+							olg_sent				AS sent,
+							olg_base_string			AS base_string,
+							olg_notes				AS notes,
+							olg_timestamp			AS timestamp,
+							INET_NTOA(olg_remote_ip) AS remote_ip
+					FROM oauth_log
+					WHERE '.implode(' AND ', $where).'
+					ORDER BY olg_id DESC
+					LIMIT 0,100', $args);
+
+		return $rs;
+	}
+
+
+
+	/**
+	 * Initialise the database
+	 */
+	public function install ()
+	{
+		parent::install();
+
+		any_db_query("ALTER TABLE oauth_consumer_registry MODIFY ocr_usa_id_ref int(11) unsigned");
+		any_db_query("ALTER TABLE oauth_consumer_token    MODIFY oct_usa_id_ref int(11) unsigned not null");
+		any_db_query("ALTER TABLE oauth_server_registry   MODIFY osr_usa_id_ref int(11) unsigned");
+		any_db_query("ALTER TABLE oauth_server_token      MODIFY ost_usa_id_ref int(11) unsigned not null");
+		any_db_query("ALTER TABLE oauth_log               MODIFY olg_usa_id_ref int(11) unsigned");
+
+		any_db_alter_add_fk('oauth_consumer_registry', 'ocr_usa_id_ref', 'any_user_auth(usa_id_ref)', 'on update cascade on delete set null');
+		any_db_alter_add_fk('oauth_consumer_token',    'oct_usa_id_ref', 'any_user_auth(usa_id_ref)', 'on update cascade on delete cascade');
+		any_db_alter_add_fk('oauth_server_registry',   'osr_usa_id_ref', 'any_user_auth(usa_id_ref)', 'on update cascade on delete set null');
+		any_db_alter_add_fk('oauth_server_token',      'ost_usa_id_ref', 'any_user_auth(usa_id_ref)', 'on update cascade on delete cascade');
+		any_db_alter_add_fk('oauth_log',               'olg_usa_id_ref', 'any_user_auth(usa_id_ref)', 'on update cascade on delete cascade');
+	}
+
+	
+	
+	/** Some simple helper functions for querying the mysql db **/
+
+	/**
+	 * Perform a query, ignore the results
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 */
+	protected function query ( $sql )
+	{
+		list($sql, $args) = $this->sql_args(func_get_args());
+		any_db_query($sql, $args);
+	}
+	
+
+	/**
+	 * Perform a query, ignore the results
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return array
+	 */
+	protected function query_all_assoc ( $sql )
+	{
+		list($sql, $args) = $this->sql_args(func_get_args());
+		return any_db_query_all_assoc($sql, $args);
+	}
+	
+	
+	/**
+	 * Perform a query, return the first row
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return array
+	 */
+	protected function query_row_assoc ( $sql )
+	{
+		list($sql, $args) = $this->sql_args(func_get_args());
+		return any_db_query_row_assoc($sql, $args);
+	}
+
+	
+	/**
+	 * Perform a query, return the first row
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return array
+	 */
+	protected function query_row ( $sql )
+	{
+		list($sql, $args) = $this->sql_args(func_get_args());
+		return any_db_query_row($sql, $args);
+	}
+	
+		
+	/**
+	 * Perform a query, return the first column of the first row
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return mixed
+	 */
+	protected function query_one ( $sql )
+	{
+		list($sql, $args) = $this->sql_args(func_get_args());
+		return any_db_query_one($sql, $args);
+	}
+	
+	
+	/**
+	 * Return the number of rows affected in the last query
+	 * 
+	 * @return int
+	 */
+	protected function query_affected_rows ()
+	{
+		return any_db_affected_rows();
+	}
+
+
+	/**
+	 * Return the id of the last inserted row
+	 * 
+	 * @return int
+	 */
+	protected function query_insert_id ()
+	{
+		return any_db_insert_id();
+	}
+	
+	
+	private function sql_args ( $args )
+	{
+		$sql = array_shift($args);
+		if (count($args) == 1 && is_array($args[0]))
+		{
+			$args = $args[0];
+		}
+		return array($sql, $args);
+	}
+
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/store/OAuthStoreMySQL.php b/mod/oauth_api/vendors/oauth/library/store/OAuthStoreMySQL.php
new file mode 100644
index 000000000..a1b04c5c8
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/store/OAuthStoreMySQL.php
@@ -0,0 +1,1879 @@
+<?php
+
+/**
+ * Storage container for the oauth credentials, both server and consumer side.
+ * Based on MySQL
+ * 
+ * @version $Id: OAuthStoreMySQL.php 64 2009-08-16 19:37:00Z marcw@pobox.com $
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 16, 2007 4:03:30 PM
+ * 
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+require_once dirname(__FILE__) . '/OAuthStoreAbstract.class.php';
+
+
+class OAuthStoreMySQL extends OAuthStoreAbstract
+{
+	/**
+	 * The MySQL connection 
+	 */
+	protected $conn;
+
+	/**
+	 * Maximum delta a timestamp may be off from a previous timestamp.
+	 * Allows multiple consumers with some clock skew to work with the same token.
+	 * Unit is seconds, default max skew is 10 minutes.
+	 */
+	protected $max_timestamp_skew = 600;
+
+	/**
+	 * Default ttl for request tokens
+	 */
+	protected $max_request_token_ttl = 3600;
+	
+
+	/**
+	 * Construct the OAuthStoreMySQL.
+	 * In the options you have to supply either:
+	 * - server, username, password and database (for a mysql_connect)
+	 * - conn (for the connection to be used)
+	 * 
+	 * @param array options
+	 */
+	function __construct ( $options = array() )
+	{
+		if (isset($options['conn']))
+		{
+			$this->conn = $options['conn'];
+		}
+		else
+		{
+			if (isset($options['server']))
+			{
+				$server   = $options['server'];
+				$username = $options['username'];
+				
+				if (isset($options['password']))
+				{
+					$this->conn = mysql_connect($server, $username, $options['password']);
+				}
+				else
+				{
+					$this->conn = mysql_connect($server, $username);
+				}
+			}
+			else
+			{
+				// Try the default mysql connect
+				$this->conn = mysql_connect();
+			}
+
+			if ($this->conn === false)
+			{
+				throw new OAuthException('Could not connect to MySQL database: ' . mysql_error());
+			}
+
+			if (isset($options['database']))
+			{
+				if (!mysql_select_db($options['database'], $this->conn))
+				{
+					$this->sql_errcheck();
+				}
+			}
+			$this->query('set character set utf8');
+		}
+	}
+
+
+	/**
+	 * Find stored credentials for the consumer key and token. Used by an OAuth server
+	 * when verifying an OAuth request.
+	 * 
+	 * @param string consumer_key
+	 * @param string token
+	 * @param string token_type		false, 'request' or 'access'
+	 * @exception OAuthException when no secrets where found
+	 * @return array	assoc (consumer_secret, token_secret, osr_id, ost_id, user_id)
+	 */
+	public function getSecretsForVerify ( $consumer_key, $token, $token_type = 'access' )
+	{
+		if ($token_type === false)
+		{
+			$rs = $this->query_row_assoc('
+						SELECT	osr_id, 
+								osr_consumer_key		as consumer_key,
+								osr_consumer_secret		as consumer_secret
+						FROM oauth_server_registry
+						WHERE osr_consumer_key	= \'%s\'
+						  AND osr_enabled		= 1
+						', 
+						$consumer_key);
+			
+			if ($rs)
+			{
+				$rs['token'] 		= false;
+				$rs['token_secret']	= false;
+				$rs['user_id']		= false;
+				$rs['ost_id']		= false;
+			}
+		}
+		else
+		{
+			$rs = $this->query_row_assoc('
+						SELECT	osr_id, 
+								ost_id,
+								ost_usa_id_ref			as user_id,
+								osr_consumer_key		as consumer_key,
+								osr_consumer_secret		as consumer_secret,
+								ost_token				as token,
+								ost_token_secret		as token_secret
+						FROM oauth_server_registry
+								JOIN oauth_server_token
+								ON ost_osr_id_ref = osr_id
+						WHERE ost_token_type	= \'%s\'
+						  AND osr_consumer_key	= \'%s\'
+						  AND ost_token			= \'%s\'
+					 	  AND osr_enabled		= 1
+						  AND ost_token_ttl     >= NOW()
+						',
+						$token_type, $consumer_key, $token);
+		}
+		
+		if (empty($rs))
+		{
+			throw new OAuthException('The consumer_key "'.$consumer_key.'" token "'.$token.'" combination does not exist or is not enabled.');
+		}
+		return $rs;
+	}
+
+
+	/**
+	 * Find the server details for signing a request, always looks for an access token.
+	 * The returned credentials depend on which local user is making the request.
+	 * 
+	 * The consumer_key must belong to the user or be public (user id is null)
+	 * 
+	 * For signing we need all of the following:
+	 * 
+	 * consumer_key			consumer key associated with the server
+	 * consumer_secret		consumer secret associated with this server
+	 * token				access token associated with this server
+	 * token_secret			secret for the access token
+	 * signature_methods	signing methods supported by the server (array)
+	 * 
+	 * @todo filter on token type (we should know how and with what to sign this request, and there might be old access tokens)
+	 * @param string uri	uri of the server
+	 * @param int user_id	id of the logged on user
+	 * @param string name	(optional) name of the token (case sensitive)
+	 * @exception OAuthException when no credentials found
+	 * @return array
+	 */
+	public function getSecretsForSignature ( $uri, $user_id, $name = '' )
+	{
+		// Find a consumer key and token for the given uri
+		$ps		= parse_url($uri);
+		$host	= isset($ps['host']) ? $ps['host'] : 'localhost';
+		$path	= isset($ps['path']) ? $ps['path'] : '';
+		
+		if (empty($path) || substr($path, -1) != '/')
+		{
+			$path .= '/';
+		}
+
+		// The owner of the consumer_key is either the user or nobody (public consumer key)
+		$secrets = $this->query_row_assoc('
+					SELECT	ocr_consumer_key		as consumer_key,
+							ocr_consumer_secret		as consumer_secret,
+							oct_token				as token,
+							oct_token_secret		as token_secret,
+							ocr_signature_methods	as signature_methods
+					FROM oauth_consumer_registry
+						JOIN oauth_consumer_token ON oct_ocr_id_ref = ocr_id
+					WHERE ocr_server_uri_host = \'%s\'
+					  AND ocr_server_uri_path = LEFT(\'%s\', LENGTH(ocr_server_uri_path))
+					  AND (ocr_usa_id_ref = %s OR ocr_usa_id_ref IS NULL)
+					  AND oct_usa_id_ref	  = %d
+					  AND oct_token_type      = \'access\'
+					  AND oct_name			  = \'%s\'
+					  AND oct_token_ttl       >= NOW()
+					ORDER BY ocr_usa_id_ref DESC, ocr_consumer_secret DESC, LENGTH(ocr_server_uri_path) DESC
+					LIMIT 0,1
+					', $host, $path, $user_id, $user_id, $name
+					);
+		
+		if (empty($secrets))
+		{
+			throw new OAuthException('No server tokens available for '.$uri);
+		}
+		$secrets['signature_methods'] = explode(',', $secrets['signature_methods']);
+		return $secrets;
+	}
+
+
+	/**
+	 * Get the token and token secret we obtained from a server.
+	 * 
+	 * @param string	consumer_key
+	 * @param string 	token
+	 * @param string	token_type
+	 * @param int		user_id			the user owning the token
+	 * @param string	name			optional name for a named token
+	 * @exception OAuthException when no credentials found
+	 * @return array
+	 */
+	public function getServerTokenSecrets ( $consumer_key, $token, $token_type, $user_id, $name = '' )
+	{
+		if ($token_type != 'request' && $token_type != 'access')
+		{
+			throw new OAuthException('Unkown token type "'.$token_type.'", must be either "request" or "access"');
+		}
+
+		// Take the most recent token of the given type
+		$r = $this->query_row_assoc('
+					SELECT	ocr_consumer_key		as consumer_key,
+							ocr_consumer_secret		as consumer_secret,
+							oct_token				as token,
+							oct_token_secret		as token_secret,
+							oct_name				as token_name,
+							ocr_signature_methods	as signature_methods,
+							ocr_server_uri			as server_uri,
+							ocr_request_token_uri	as request_token_uri,
+							ocr_authorize_uri		as authorize_uri,
+							ocr_access_token_uri	as access_token_uri,
+							IF(oct_token_ttl >= \'9999-12-31\', NULL, UNIX_TIMESTAMP(oct_token_ttl) - UNIX_TIMESTAMP(NOW())) as token_ttl
+					FROM oauth_consumer_registry
+							JOIN oauth_consumer_token
+							ON oct_ocr_id_ref = ocr_id
+					WHERE ocr_consumer_key = \'%s\'
+					  AND oct_token_type   = \'%s\'
+					  AND oct_token        = \'%s\'
+					  AND oct_usa_id_ref   = %d
+					  AND oct_token_ttl    >= NOW()
+					', $consumer_key, $token_type, $token, $user_id
+					);
+					
+		if (empty($r))
+		{
+			throw new OAuthException('Could not find a "'.$token_type.'" token for consumer "'.$consumer_key.'" and user '.$user_id);
+		}
+		if (isset($r['signature_methods']) && !empty($r['signature_methods']))
+		{
+			$r['signature_methods'] = explode(',',$r['signature_methods']);
+		}
+		else
+		{
+			$r['signature_methods'] = array();
+		}
+		return $r;		
+	}
+
+
+	/**
+	 * Add a request token we obtained from a server.
+	 * 
+	 * @todo remove old tokens for this user and this ocr_id
+	 * @param string consumer_key	key of the server in the consumer registry
+	 * @param string token_type		one of 'request' or 'access'
+	 * @param string token
+	 * @param string token_secret
+	 * @param int 	 user_id			the user owning the token
+	 * @param array  options			extra options, name and token_ttl
+	 * @exception OAuthException when server is not known
+	 * @exception OAuthException when we received a duplicate token
+	 */
+	public function addServerToken ( $consumer_key, $token_type, $token, $token_secret, $user_id, $options = array() )
+	{
+		if ($token_type != 'request' && $token_type != 'access')
+		{
+			throw new OAuthException('Unknown token type "'.$token_type.'", must be either "request" or "access"');
+		}
+
+		// Maximum time to live for this token
+		if (isset($options['token_ttl']) && is_numeric($options['token_ttl']))
+		{
+			$ttl = 'DATE_ADD(NOW(), INTERVAL '.intval($options['token_ttl']).' SECOND)';
+		}
+		else if ($token == 'request')
+		{
+			$ttl = 'DATE_ADD(NOW(), INTERVAL '.$this->max_request_token_ttl.' SECOND)';
+		}
+		else
+		{
+			$ttl = "'9999-12-31'";
+		}
+		
+		$ocr_id = $this->query_one('
+					SELECT ocr_id
+					FROM oauth_consumer_registry
+					WHERE ocr_consumer_key = \'%s\'
+					', $consumer_key);
+					
+		if (empty($ocr_id))
+		{
+			throw new OAuthException('No server associated with consumer_key "'.$consumer_key.'"');
+		}
+		
+		// Named tokens, unique per user/consumer key
+		if (isset($options['name']) && $options['name'] != '')
+		{
+			$name = $options['name'];
+		}
+		else
+		{
+			$name = '';
+		}
+
+		// Delete any old tokens with the same type and name for this user/server combination
+		$this->query('
+					DELETE FROM oauth_consumer_token
+					WHERE oct_ocr_id_ref = %d
+					  AND oct_usa_id_ref = %d
+					  AND oct_token_type = LOWER(\'%s\')
+					  AND oct_name       = \'%s\'
+					',
+					$ocr_id,
+					$user_id,
+					$token_type,
+					$name);
+
+		// Insert the new token
+		$this->query('
+					INSERT IGNORE INTO oauth_consumer_token
+					SET oct_ocr_id_ref	= %d,
+						oct_usa_id_ref  = %d,
+						oct_name		= \'%s\',
+						oct_token		= \'%s\',
+						oct_token_secret= \'%s\',
+						oct_token_type	= LOWER(\'%s\'),
+						oct_timestamp	= NOW(),
+						oct_token_ttl	= '.$ttl.'
+					',
+					$ocr_id,
+					$user_id,
+					$name,
+					$token,
+					$token_secret,
+					$token_type);
+		
+		if (!$this->query_affected_rows())
+		{
+			throw new OAuthException('Received duplicate token "'.$token.'" for the same consumer_key "'.$consumer_key.'"');
+		}
+	}
+
+
+	/**
+	 * Delete a server key.  This removes access to that site.
+	 * 
+	 * @param string consumer_key
+	 * @param int user_id	user registering this server
+	 * @param boolean user_is_admin
+	 */
+	public function deleteServer ( $consumer_key, $user_id, $user_is_admin = false )
+	{
+		if ($user_is_admin)
+		{
+			$this->query('
+					DELETE FROM oauth_consumer_registry
+					WHERE ocr_consumer_key = \'%s\'
+					  AND (ocr_usa_id_ref = %d OR ocr_usa_id_ref IS NULL)
+					', $consumer_key, $user_id);
+		}
+		else
+		{
+			$this->query('
+					DELETE FROM oauth_consumer_registry
+					WHERE ocr_consumer_key = \'%s\'
+					  AND ocr_usa_id_ref   = %d
+					', $consumer_key, $user_id);
+		}
+	}
+	
+	
+	/**
+	 * Get a server from the consumer registry using the consumer key
+	 * 
+	 * @param string consumer_key
+	 * @param int user_id
+	 * @param boolean user_is_admin (optional)
+	 * @exception OAuthException when server is not found
+	 * @return array
+	 */	
+	public function getServer ( $consumer_key, $user_id, $user_is_admin = false )
+	{
+		$r = $this->query_row_assoc('
+				SELECT	ocr_id					as id,
+						ocr_usa_id_ref			as user_id,
+						ocr_consumer_key 		as consumer_key,
+						ocr_consumer_secret 	as consumer_secret,
+						ocr_signature_methods	as signature_methods,
+						ocr_server_uri			as server_uri,
+						ocr_request_token_uri	as request_token_uri,
+						ocr_authorize_uri		as authorize_uri,
+						ocr_access_token_uri	as access_token_uri
+				FROM oauth_consumer_registry
+				WHERE ocr_consumer_key = \'%s\'
+				  AND (ocr_usa_id_ref = %d OR ocr_usa_id_ref IS NULL)
+				',	$consumer_key, $user_id);
+		
+		if (empty($r))
+		{
+			throw new OAuthException('No server with consumer_key "'.$consumer_key.'" has been registered (for this user)');
+		}
+			
+		if (isset($r['signature_methods']) && !empty($r['signature_methods']))
+		{
+			$r['signature_methods'] = explode(',',$r['signature_methods']);
+		}
+		else
+		{
+			$r['signature_methods'] = array();
+		}
+		return $r;
+	}
+
+
+
+	/**
+	 * Find the server details that might be used for a request
+	 * 
+	 * The consumer_key must belong to the user or be public (user id is null)
+	 * 
+	 * @param string uri	uri of the server
+	 * @param int user_id	id of the logged on user
+	 * @exception OAuthException when no credentials found
+	 * @return array
+	 */
+	public function getServerForUri ( $uri, $user_id )
+	{
+		// Find a consumer key and token for the given uri
+		$ps		= parse_url($uri);
+		$host	= isset($ps['host']) ? $ps['host'] : 'localhost';
+		$path	= isset($ps['path']) ? $ps['path'] : '';
+		
+		if (empty($path) || substr($path, -1) != '/')
+		{
+			$path .= '/';
+		}
+
+		// The owner of the consumer_key is either the user or nobody (public consumer key)
+		$server = $this->query_row_assoc('
+					SELECT	ocr_id					as id,
+							ocr_usa_id_ref			as user_id,
+							ocr_consumer_key		as consumer_key,
+							ocr_consumer_secret		as consumer_secret,
+							ocr_signature_methods	as signature_methods,
+							ocr_server_uri			as server_uri,
+							ocr_request_token_uri	as request_token_uri,
+							ocr_authorize_uri		as authorize_uri,
+							ocr_access_token_uri	as access_token_uri
+					FROM oauth_consumer_registry
+					WHERE ocr_server_uri_host = \'%s\'
+					  AND ocr_server_uri_path = LEFT(\'%s\', LENGTH(ocr_server_uri_path))
+					  AND (ocr_usa_id_ref = %s OR ocr_usa_id_ref IS NULL)
+					ORDER BY ocr_usa_id_ref DESC, consumer_secret DESC, LENGTH(ocr_server_uri_path) DESC
+					LIMIT 0,1
+					', $host, $path, $user_id
+					);
+		
+		if (empty($server))
+		{
+			throw new OAuthException('No server available for '.$uri);
+		}
+		$server['signature_methods'] = explode(',', $server['signature_methods']);
+		return $server;
+	}
+
+
+	/**
+	 * Get a list of all server token this user has access to.
+	 * 
+	 * @param int usr_id
+	 * @return array
+	 */
+	public function listServerTokens ( $user_id )
+	{
+		$ts = $this->query_all_assoc('
+					SELECT	ocr_consumer_key		as consumer_key,
+							ocr_consumer_secret		as consumer_secret,
+							oct_id					as token_id,
+							oct_token				as token,
+							oct_token_secret		as token_secret,
+							oct_usa_id_ref			as user_id,
+							ocr_signature_methods	as signature_methods,
+							ocr_server_uri			as server_uri,
+							ocr_server_uri_host		as server_uri_host,
+							ocr_server_uri_path		as server_uri_path,
+							ocr_request_token_uri	as request_token_uri,
+							ocr_authorize_uri		as authorize_uri,
+							ocr_access_token_uri	as access_token_uri,
+							oct_timestamp			as timestamp
+					FROM oauth_consumer_registry
+							JOIN oauth_consumer_token
+							ON oct_ocr_id_ref = ocr_id
+					WHERE oct_usa_id_ref = %d
+					  AND oct_token_type = \'access\'
+					  AND oct_token_ttl  >= NOW()
+					ORDER BY ocr_server_uri_host, ocr_server_uri_path
+					', $user_id);
+		return $ts;
+	}
+
+
+	/**
+	 * Count how many tokens we have for the given server
+	 * 
+	 * @param string consumer_key
+	 * @return int
+	 */
+	public function countServerTokens ( $consumer_key )
+	{
+		$count = $this->query_one('
+					SELECT COUNT(oct_id)
+					FROM oauth_consumer_token
+							JOIN oauth_consumer_registry
+							ON oct_ocr_id_ref = ocr_id
+					WHERE oct_token_type   = \'access\'
+					  AND ocr_consumer_key = \'%s\'
+					  AND oct_token_ttl    >= NOW()
+					', $consumer_key);
+		
+		return $count;
+	}
+
+
+	/**
+	 * Get a specific server token for the given user
+	 * 
+	 * @param string consumer_key
+	 * @param string token
+	 * @param int user_id
+	 * @exception OAuthException when no such token found
+	 * @return array
+	 */
+	public function getServerToken ( $consumer_key, $token, $user_id )
+	{
+		$ts = $this->query_row_assoc('
+					SELECT	ocr_consumer_key		as consumer_key,
+							ocr_consumer_secret		as consumer_secret,
+							oct_token				as token,
+							oct_token_secret		as token_secret,
+							oct_usa_id_ref			as usr_id,
+							ocr_signature_methods	as signature_methods,
+							ocr_server_uri			as server_uri,
+							ocr_server_uri_host		as server_uri_host,
+							ocr_server_uri_path		as server_uri_path,
+							ocr_request_token_uri	as request_token_uri,
+							ocr_authorize_uri		as authorize_uri,
+							ocr_access_token_uri	as access_token_uri,
+							oct_timestamp			as timestamp
+					FROM oauth_consumer_registry
+							JOIN oauth_consumer_token
+							ON oct_ocr_id_ref = ocr_id
+					WHERE ocr_consumer_key = \'%s\'
+					  AND oct_usa_id_ref   = %d
+					  AND oct_token_type   = \'access\'
+					  AND oct_token        = \'%s\'
+					  AND oct_token_ttl    >= NOW()
+					', $consumer_key, $user_id, $token);
+		
+		if (empty($ts))
+		{
+			throw new OAuthException('No such consumer key ('.$consumer_key.') and token ('.$token.') combination for user "'.$user_id.'"');
+		}
+		return $ts;
+	}
+
+
+	/**
+	 * Delete a token we obtained from a server.
+	 * 
+	 * @param string consumer_key
+	 * @param string token
+	 * @param int user_id
+	 * @param boolean user_is_admin
+	 */
+	public function deleteServerToken ( $consumer_key, $token, $user_id, $user_is_admin = false )
+	{
+		if ($user_is_admin)
+		{
+			$this->query('
+				DELETE oauth_consumer_token 
+				FROM oauth_consumer_token
+						JOIN oauth_consumer_registry
+						ON oct_ocr_id_ref = ocr_id
+				WHERE ocr_consumer_key	= \'%s\'
+				  AND oct_token			= \'%s\'
+				', $consumer_key, $token);
+		}
+		else
+		{
+			$this->query('
+				DELETE oauth_consumer_token 
+				FROM oauth_consumer_token
+						JOIN oauth_consumer_registry
+						ON oct_ocr_id_ref = ocr_id
+				WHERE ocr_consumer_key	= \'%s\'
+				  AND oct_token			= \'%s\'
+				  AND oct_usa_id_ref	= %d
+				', $consumer_key, $token, $user_id);
+		}
+	}
+
+
+	/**
+	 * Set the ttl of a server access token.  This is done when the
+	 * server receives a valid request with a xoauth_token_ttl parameter in it.
+	 * 
+	 * @param string consumer_key
+	 * @param string token
+	 * @param int token_ttl
+	 */
+	public function setServerTokenTtl ( $consumer_key, $token, $token_ttl )
+	{
+		if ($token_ttl <= 0)
+		{
+			// Immediate delete when the token is past its ttl
+			$this->deleteServerToken($consumer_key, $token, 0, true);
+		}
+		else
+		{
+			// Set maximum time to live for this token
+			$this->query('
+						UPDATE oauth_consumer_token, oauth_consumer_registry
+						SET ost_token_ttl = DATE_ADD(NOW(), INTERVAL %d SECOND)
+						WHERE ocr_consumer_key	= \'%s\'
+						  AND oct_ocr_id_ref    = ocr_id
+						  AND oct_token 	    = \'%s\'
+						', $token_ttl, $consumer_key, $token);
+		}
+	}
+
+
+	/**
+	 * Get a list of all consumers from the consumer registry.
+	 * The consumer keys belong to the user or are public (user id is null)
+	 * 
+	 * @param string q	query term
+	 * @param int user_id
+	 * @return array
+	 */	
+	public function listServers ( $q = '', $user_id )
+	{
+		$q    = trim(str_replace('%', '', $q));
+		$args = array();
+
+		if (!empty($q))
+		{
+			$where = ' WHERE (	ocr_consumer_key like \'%%%s%%\'
+						  	 OR ocr_server_uri like \'%%%s%%\'
+						  	 OR ocr_server_uri_host like \'%%%s%%\'
+						  	 OR ocr_server_uri_path like \'%%%s%%\')
+						 AND (ocr_usa_id_ref = %d OR ocr_usa_id_ref IS NULL)
+					';
+			
+			$args[] = $q;
+			$args[] = $q;
+			$args[] = $q;
+			$args[] = $q;
+			$args[] = $user_id;
+		}
+		else
+		{
+			$where  = ' WHERE ocr_usa_id_ref = %d OR ocr_usa_id_ref IS NULL';
+			$args[] = $user_id;
+		}
+
+		$servers = $this->query_all_assoc('
+					SELECT	ocr_id					as id,
+							ocr_usa_id_ref			as user_id,
+							ocr_consumer_key 		as consumer_key,
+							ocr_consumer_secret 	as consumer_secret,
+							ocr_signature_methods	as signature_methods,
+							ocr_server_uri			as server_uri,
+							ocr_server_uri_host		as server_uri_host,
+							ocr_server_uri_path		as server_uri_path,
+							ocr_request_token_uri	as request_token_uri,
+							ocr_authorize_uri		as authorize_uri,
+							ocr_access_token_uri	as access_token_uri
+					FROM oauth_consumer_registry
+					'.$where.'
+					ORDER BY ocr_server_uri_host, ocr_server_uri_path
+					', $args);
+		return $servers;
+	}
+
+
+	/**
+	 * Register or update a server for our site (we will be the consumer)
+	 * 
+	 * (This is the registry at the consumers, registering servers ;-) )
+	 * 
+	 * @param array server
+	 * @param int user_id	user registering this server
+	 * @param boolean user_is_admin
+	 * @exception OAuthException when fields are missing or on duplicate consumer_key
+	 * @return consumer_key
+	 */
+	public function updateServer ( $server, $user_id, $user_is_admin = false )
+	{
+		foreach (array('consumer_key', 'server_uri') as $f)
+		{
+			if (empty($server[$f]))
+			{
+				throw new OAuthException('The field "'.$f.'" must be set and non empty');
+			}
+		}
+		
+		if (!empty($server['id']))
+		{
+			$exists = $this->query_one('
+						SELECT ocr_id
+						FROM oauth_consumer_registry
+						WHERE ocr_consumer_key = \'%s\'
+						  AND ocr_id <> %d
+						  AND (ocr_usa_id_ref = %d OR ocr_usa_id_ref IS NULL)
+						', $server['consumer_key'], $server['id'], $user_id);
+		}
+		else
+		{
+			$exists = $this->query_one('
+						SELECT ocr_id
+						FROM oauth_consumer_registry
+						WHERE ocr_consumer_key = \'%s\'
+						  AND (ocr_usa_id_ref = %d OR ocr_usa_id_ref IS NULL)
+						', $server['consumer_key'], $user_id);
+		}
+
+		if ($exists)
+		{
+			throw new OAuthException('The server with key "'.$server['consumer_key'].'" has already been registered');
+		}
+
+		$parts = parse_url($server['server_uri']);
+		$host  = (isset($parts['host']) ? $parts['host'] : 'localhost');
+		$path  = (isset($parts['path']) ? $parts['path'] : '/');
+
+		if (isset($server['signature_methods']))
+		{
+			if (is_array($server['signature_methods']))
+			{
+				$server['signature_methods'] = strtoupper(implode(',', $server['signature_methods']));
+			}
+		}	
+		else
+		{
+			$server['signature_methods'] = '';
+		}
+
+		// When the user is an admin, then the user can update the user_id of this record
+		if ($user_is_admin && array_key_exists('user_id', $server))
+		{
+			if (is_null($server['user_id']))
+			{
+				$update_user =  ', ocr_usa_id_ref = NULL';
+			}
+			else
+			{
+				$update_user =  ', ocr_usa_id_ref = '.intval($server['user_id']);
+			}
+		}
+		else
+		{
+			$update_user = '';
+		}
+		
+		if (!empty($server['id']))
+		{
+			// Check if the current user can update this server definition
+			if (!$user_is_admin)
+			{
+				$ocr_usa_id_ref = $this->query_one('
+									SELECT ocr_usa_id_ref
+									FROM oauth_consumer_registry
+									WHERE ocr_id = %d
+									', $server['id']);
+				
+				if ($ocr_usa_id_ref != $user_id)
+				{
+					throw new OAuthException('The user "'.$user_id.'" is not allowed to update this server');
+				}
+			}
+			
+			// Update the consumer registration	
+			$this->query('
+					UPDATE oauth_consumer_registry
+					SET ocr_consumer_key    	= \'%s\',
+						ocr_consumer_secret 	= \'%s\',
+						ocr_server_uri	    	= \'%s\',
+						ocr_server_uri_host 	= \'%s\',
+						ocr_server_uri_path 	= \'%s\',
+						ocr_timestamp       	= NOW(),
+						ocr_request_token_uri	= \'%s\',
+						ocr_authorize_uri		= \'%s\',
+						ocr_access_token_uri	= \'%s\',
+						ocr_signature_methods	= \'%s\'
+						'.$update_user.'
+					WHERE ocr_id = %d
+					', 
+					$server['consumer_key'],
+					$server['consumer_secret'],
+					$server['server_uri'],
+					strtolower($host),
+					$path,
+					isset($server['request_token_uri']) ? $server['request_token_uri'] : '',
+					isset($server['authorize_uri'])     ? $server['authorize_uri']     : '',
+					isset($server['access_token_uri'])  ? $server['access_token_uri']  : '',
+					$server['signature_methods'],
+					$server['id']
+					);
+		}
+		else
+		{
+			if (empty($update_user))
+			{
+				// Per default the user owning the key is the user registering the key
+				$update_user =  ', ocr_usa_id_ref = '.intval($user_id);
+			}
+
+			$this->query('
+					INSERT INTO oauth_consumer_registry
+					SET ocr_consumer_key    	= \'%s\',
+						ocr_consumer_secret 	= \'%s\',
+						ocr_server_uri	    	= \'%s\',
+						ocr_server_uri_host 	= \'%s\',
+						ocr_server_uri_path 	= \'%s\',
+						ocr_timestamp       	= NOW(),
+						ocr_request_token_uri	= \'%s\',
+						ocr_authorize_uri		= \'%s\',
+						ocr_access_token_uri	= \'%s\',
+						ocr_signature_methods	= \'%s\'
+						'.$update_user, 
+					$server['consumer_key'],
+					$server['consumer_secret'],
+					$server['server_uri'],
+					strtolower($host),
+					$path,
+					isset($server['request_token_uri']) ? $server['request_token_uri'] : '',
+					isset($server['authorize_uri'])     ? $server['authorize_uri']     : '',
+					isset($server['access_token_uri'])  ? $server['access_token_uri']  : '',
+					$server['signature_methods']
+					);
+		
+			$ocr_id = $this->query_insert_id();
+		}
+		return $server['consumer_key'];
+	}
+
+
+	/**
+	 * Insert/update a new consumer with this server (we will be the server)
+	 * When this is a new consumer, then also generate the consumer key and secret.
+	 * Never updates the consumer key and secret.
+	 * When the id is set, then the key and secret must correspond to the entry
+	 * being updated.
+	 * 
+	 * (This is the registry at the server, registering consumers ;-) )
+	 * 
+	 * @param array consumer
+	 * @param int user_id	user registering this consumer
+	 * @param boolean user_is_admin
+	 * @return string consumer key
+	 */
+	public function updateConsumer ( $consumer, $user_id, $user_is_admin = false )
+	{
+		if (!$user_is_admin)
+		{
+			foreach (array('requester_name', 'requester_email') as $f)
+			{
+				if (empty($consumer[$f]))
+				{
+					throw new OAuthException('The field "'.$f.'" must be set and non empty');
+				}
+			}
+		}
+		
+		if (!empty($consumer['id']))
+		{
+			if (empty($consumer['consumer_key']))
+			{
+				throw new OAuthException('The field "consumer_key" must be set and non empty');
+			}
+			if (!$user_is_admin && empty($consumer['consumer_secret']))
+			{
+				throw new OAuthException('The field "consumer_secret" must be set and non empty');
+			}
+
+			// Check if the current user can update this server definition
+			if (!$user_is_admin)
+			{
+				$osr_usa_id_ref = $this->query_one('
+									SELECT osr_usa_id_ref
+									FROM oauth_server_registry
+									WHERE osr_id = %d
+									', $consumer['id']);
+				
+				if ($osr_usa_id_ref != $user_id)
+				{
+					throw new OAuthException('The user "'.$user_id.'" is not allowed to update this consumer');
+				}
+			}
+			else
+			{
+				// User is an admin, allow a key owner to be changed or key to be shared
+				if (array_key_exists('user_id',$consumer))
+				{
+					if (is_null($consumer['user_id']))
+					{
+						$this->query('
+							UPDATE oauth_server_registry
+							SET osr_usa_id_ref = NULL
+							WHERE osr_id = %d
+							', $consumer['id']);
+					}
+					else
+					{
+						$this->query('
+							UPDATE oauth_server_registry
+							SET osr_usa_id_ref = %d
+							WHERE osr_id = %d
+							', $consumer['user_id'], $consumer['id']);	
+					}
+				}
+			}
+			
+			$this->query('
+				UPDATE oauth_server_registry
+				SET osr_requester_name		= \'%s\',
+					osr_requester_email		= \'%s\',
+					osr_callback_uri		= \'%s\',
+					osr_application_uri		= \'%s\',
+					osr_application_title	= \'%s\',
+					osr_application_descr	= \'%s\',
+					osr_application_notes	= \'%s\',
+					osr_application_type	= \'%s\',
+					osr_application_commercial = IF(%d,1,0),
+					osr_timestamp			= NOW()
+				WHERE osr_id              = %d
+				  AND osr_consumer_key    = \'%s\'
+				  AND osr_consumer_secret = \'%s\'
+				',
+				$consumer['requester_name'],
+				$consumer['requester_email'],
+				isset($consumer['callback_uri']) 		? $consumer['callback_uri'] 			 : '',
+				isset($consumer['application_uri']) 	? $consumer['application_uri'] 			 : '',
+				isset($consumer['application_title'])	? $consumer['application_title'] 		 : '',
+				isset($consumer['application_descr'])	? $consumer['application_descr'] 		 : '',
+				isset($consumer['application_notes'])	? $consumer['application_notes'] 		 : '',
+				isset($consumer['application_type']) 	? $consumer['application_type'] 		 : '',
+				isset($consumer['application_commercial']) ? $consumer['application_commercial'] : 0,
+				$consumer['id'],
+				$consumer['consumer_key'],
+				$consumer['consumer_secret']
+				);
+				
+
+			$consumer_key = $consumer['consumer_key'];
+		}
+		else
+		{
+			$consumer_key	= $this->generateKey(true);
+			$consumer_secret= $this->generateKey();
+
+			// When the user is an admin, then the user can be forced to something else that the user
+			if ($user_is_admin && array_key_exists('user_id',$consumer))
+			{
+				if (is_null($consumer['user_id']))
+				{
+					$owner_id = 'NULL';
+				}
+				else
+				{
+					$owner_id = intval($consumer['user_id']);
+				}
+			}
+			else
+			{
+				// No admin, take the user id as the owner id.
+				$owner_id = intval($user_id);
+			}
+
+			$this->query('
+				INSERT INTO oauth_server_registry
+				SET osr_enabled				= 1,
+					osr_status				= \'active\',
+					osr_usa_id_ref			= %s,
+					osr_consumer_key		= \'%s\',
+					osr_consumer_secret		= \'%s\',
+					osr_requester_name		= \'%s\',
+					osr_requester_email		= \'%s\',
+					osr_callback_uri		= \'%s\',
+					osr_application_uri		= \'%s\',
+					osr_application_title	= \'%s\',
+					osr_application_descr	= \'%s\',
+					osr_application_notes	= \'%s\',
+					osr_application_type	= \'%s\',
+					osr_application_commercial = IF(%d,1,0),
+					osr_timestamp			= NOW(),
+					osr_issue_date			= NOW()
+				',
+				$owner_id,
+				$consumer_key,
+				$consumer_secret,
+				$consumer['requester_name'],
+				$consumer['requester_email'],
+				isset($consumer['callback_uri']) 		? $consumer['callback_uri'] 			 : '',
+				isset($consumer['application_uri']) 	? $consumer['application_uri'] 			 : '',
+				isset($consumer['application_title'])	? $consumer['application_title'] 		 : '',
+				isset($consumer['application_descr'])	? $consumer['application_descr'] 		 : '',
+				isset($consumer['application_notes'])	? $consumer['application_notes'] 		 : '',
+				isset($consumer['application_type']) 	? $consumer['application_type'] 		 : '',
+				isset($consumer['application_commercial']) ? $consumer['application_commercial'] : 0
+				);
+		}
+		return $consumer_key;
+
+	}
+
+
+
+	/**
+	 * Delete a consumer key.  This removes access to our site for all applications using this key.
+	 * 
+	 * @param string consumer_key
+	 * @param int user_id	user registering this server
+	 * @param boolean user_is_admin
+	 */
+	public function deleteConsumer ( $consumer_key, $user_id, $user_is_admin = false )
+	{
+		if ($user_is_admin)
+		{
+			$this->query('
+					DELETE FROM oauth_server_registry
+					WHERE osr_consumer_key = \'%s\'
+					  AND (osr_usa_id_ref = %d OR osr_usa_id_ref IS NULL)
+					', $consumer_key, $user_id);
+		}
+		else
+		{
+			$this->query('
+					DELETE FROM oauth_server_registry
+					WHERE osr_consumer_key = \'%s\'
+					  AND osr_usa_id_ref   = %d
+					', $consumer_key, $user_id);
+		}
+	}	
+	
+	
+	
+	/**
+	 * Fetch a consumer of this server, by consumer_key.
+	 * 
+	 * @param string consumer_key
+	 * @param int user_id
+	 * @param boolean user_is_admin (optional)
+	 * @exception OAuthException when consumer not found
+	 * @return array
+	 */
+	public function getConsumer ( $consumer_key, $user_id, $user_is_admin = false )
+	{
+		$consumer = $this->query_row_assoc('
+						SELECT	*
+						FROM oauth_server_registry
+						WHERE osr_consumer_key = \'%s\'
+						', $consumer_key);
+		
+		if (!is_array($consumer))
+		{
+			throw new OAuthException('No consumer with consumer_key "'.$consumer_key.'"');
+		}
+
+		$c = array();
+		foreach ($consumer as $key => $value)
+		{
+			$c[substr($key, 4)] = $value;
+		}
+		$c['user_id'] = $c['usa_id_ref'];
+
+		if (!$user_is_admin && !empty($c['user_id']) && $c['user_id'] != $user_id)
+		{
+			throw new OAuthException('No access to the consumer information for consumer_key "'.$consumer_key.'"');
+		}
+		return $c;
+	}
+
+
+	/**
+	 * Fetch the static consumer key for this provider.  The user for the static consumer 
+	 * key is NULL (no user, shared key).  If the key did not exist then the key is created.
+	 * 
+	 * @return string
+	 */
+	public function getConsumerStatic ()
+	{
+		$consumer = $this->query_one('
+						SELECT osr_consumer_key
+						FROM oauth_server_registry
+						WHERE osr_consumer_key LIKE \'sc-%%\'
+						  AND osr_usa_id_ref IS NULL
+						');
+
+		if (empty($consumer))
+		{
+			$consumer_key = 'sc-'.$this->generateKey(true);
+			$this->query('
+				INSERT INTO oauth_server_registry
+				SET osr_enabled				= 1,
+					osr_status				= \'active\',
+					osr_usa_id_ref			= NULL,
+					osr_consumer_key		= \'%s\',
+					osr_consumer_secret		= \'\',
+					osr_requester_name		= \'\',
+					osr_requester_email		= \'\',
+					osr_callback_uri		= \'\',
+					osr_application_uri		= \'\',
+					osr_application_title	= \'Static shared consumer key\',
+					osr_application_descr	= \'\',
+					osr_application_notes	= \'Static shared consumer key\',
+					osr_application_type	= \'\',
+					osr_application_commercial = 0,
+					osr_timestamp			= NOW(),
+					osr_issue_date			= NOW()
+				',
+				$consumer_key
+				);
+			
+			// Just make sure that if the consumer key is truncated that we get the truncated string
+			$consumer = $this->getConsumerStatic();
+		}
+		return $consumer;
+	}
+
+
+	/**
+	 * Add an unautorized request token to our server.
+	 * 
+	 * @param string consumer_key
+	 * @param array options		(eg. token_ttl)
+	 * @return array (token, token_secret)
+	 */
+	public function addConsumerRequestToken ( $consumer_key, $options = array() )
+	{
+		$token  = $this->generateKey(true);
+		$secret = $this->generateKey();
+		$osr_id	= $this->query_one('
+						SELECT osr_id
+						FROM oauth_server_registry
+						WHERE osr_consumer_key = \'%s\'
+						  AND osr_enabled      = 1
+						', $consumer_key);
+
+		if (!$osr_id)
+		{
+			throw new OAuthException('No server with consumer_key "'.$consumer_key.'" or consumer_key is disabled');
+		}
+
+		if (isset($options['token_ttl']) && is_numeric($options['token_ttl']))
+		{
+			$ttl = intval($options['token_ttl']);
+		}
+		else
+		{
+			$ttl = $this->max_request_token_ttl;
+		}
+
+		$this->query('
+				INSERT INTO oauth_server_token
+				SET ost_osr_id_ref		= %d,
+					ost_usa_id_ref		= 1,
+					ost_token			= \'%s\',
+					ost_token_secret	= \'%s\',
+					ost_token_type		= \'request\',
+					ost_token_ttl       = DATE_ADD(NOW(), INTERVAL %d SECOND)
+				ON DUPLICATE KEY UPDATE
+					ost_osr_id_ref		= VALUES(ost_osr_id_ref),
+					ost_usa_id_ref		= VALUES(ost_usa_id_ref),
+					ost_token			= VALUES(ost_token),
+					ost_token_secret	= VALUES(ost_token_secret),
+					ost_token_type		= VALUES(ost_token_type),
+					ost_token_ttl       = VALUES(ost_token_ttl),
+					ost_timestamp		= NOW()
+				', $osr_id, $token, $secret, $ttl);
+		
+		return array('token'=>$token, 'token_secret'=>$secret, 'token_ttl'=>$ttl);
+	}
+	
+	
+	/**
+	 * Fetch the consumer request token, by request token.
+	 * 
+	 * @param string token
+	 * @return array  token and consumer details
+	 */
+	public function getConsumerRequestToken ( $token )
+	{
+		$rs = $this->query_row_assoc('
+				SELECT	ost_token			as token,
+						ost_token_secret	as token_secret,
+						osr_consumer_key	as consumer_key,
+						osr_consumer_secret	as consumer_secret,
+						ost_token_type		as token_type
+				FROM oauth_server_token
+						JOIN oauth_server_registry
+						ON ost_osr_id_ref = osr_id
+				WHERE ost_token_type = \'request\'
+				  AND ost_token      = \'%s\'
+				  AND ost_token_ttl  >= NOW()
+				', $token);
+		
+		return $rs;
+	}
+	
+
+	/**
+	 * Delete a consumer token.  The token must be a request or authorized token.
+	 * 
+	 * @param string token
+	 */
+	public function deleteConsumerRequestToken ( $token )
+	{
+		$this->query('
+					DELETE FROM oauth_server_token
+					WHERE ost_token 	 = \'%s\'
+					  AND ost_token_type = \'request\'
+					', $token);
+	}
+	
+
+	/**
+	 * Upgrade a request token to be an authorized request token.
+	 * 
+	 * @param string token
+	 * @param int	 user_id  user authorizing the token
+	 * @param string referrer_host used to set the referrer host for this token, for user feedback
+	 */
+	public function authorizeConsumerRequestToken ( $token, $user_id, $referrer_host = '' )
+	{
+		$this->query('
+					UPDATE oauth_server_token
+					SET ost_authorized    = 1,
+						ost_usa_id_ref    = %d,
+						ost_timestamp     = NOW(),
+						ost_referrer_host = \'%s\'
+					WHERE ost_token      = \'%s\'
+					  AND ost_token_type = \'request\'
+					', $user_id, $referrer_host, $token);
+	}
+
+
+	/**
+	 * Count the consumer access tokens for the given consumer.
+	 * 
+	 * @param string consumer_key
+	 * @return int
+	 */
+	public function countConsumerAccessTokens ( $consumer_key )
+	{
+		$count = $this->query_one('
+					SELECT COUNT(ost_id)
+					FROM oauth_server_token
+							JOIN oauth_server_registry
+							ON ost_osr_id_ref = osr_id
+					WHERE ost_token_type   = \'access\'
+					  AND osr_consumer_key = \'%s\'
+					  AND ost_token_ttl    >= NOW()
+					', $consumer_key);
+		
+		return $count;
+	}
+
+
+	/**
+	 * Exchange an authorized request token for new access token.
+	 * 
+	 * @param string token
+	 * @param array options		options for the token, token_ttl
+	 * @exception OAuthException when token could not be exchanged
+	 * @return array (token, token_secret)
+	 */
+	public function exchangeConsumerRequestForAccessToken ( $token, $options = array() )
+	{
+		$new_token  = $this->generateKey(true);
+		$new_secret = $this->generateKey();
+
+		// Maximum time to live for this token
+		if (isset($options['token_ttl']) && is_numeric($options['token_ttl']))
+		{
+			$ttl_sql = 'DATE_ADD(NOW(), INTERVAL '.intval($options['token_ttl']).' SECOND)';
+		}
+		else
+		{
+			$ttl_sql = "'9999-12-31'";
+		}
+
+		$this->query('
+					UPDATE oauth_server_token
+					SET ost_token			= \'%s\',
+						ost_token_secret	= \'%s\',
+						ost_token_type		= \'access\',
+						ost_timestamp		= NOW(),
+						ost_token_ttl       = '.$ttl_sql.'
+					WHERE ost_token      = \'%s\'
+					  AND ost_token_type = \'request\'
+					  AND ost_authorized = 1
+					  AND ost_token_ttl  >= NOW()
+					', $new_token, $new_secret, $token);
+		
+		if ($this->query_affected_rows() != 1)
+		{
+			throw new OAuthException('Can\'t exchange request token "'.$token.'" for access token. No such token or not authorized');
+		}
+
+		$ret = array('token' => $new_token, 'token_secret' => $new_secret);
+		$ttl = $this->query_one('
+					SELECT	IF(ost_token_ttl >= \'9999-12-31\', NULL, UNIX_TIMESTAMP(ost_token_ttl) - UNIX_TIMESTAMP(NOW())) as token_ttl
+					FROM oauth_server_token
+					WHERE ost_token = \'%s\'', $new_token);
+
+		if (is_numeric($ttl))
+		{
+			$ret['token_ttl'] = intval($ttl);
+		}
+		return $ret;
+	}
+
+
+	/**
+	 * Fetch the consumer access token, by access token.
+	 * 
+	 * @param string token
+	 * @param int user_id
+	 * @exception OAuthException when token is not found
+	 * @return array  token and consumer details
+	 */
+	public function getConsumerAccessToken ( $token, $user_id )
+	{
+		$rs = $this->query_row_assoc('
+				SELECT	ost_token				as token,
+						ost_token_secret		as token_secret,
+						ost_referrer_host		as token_referrer_host,
+						osr_consumer_key		as consumer_key,
+						osr_consumer_secret		as consumer_secret,
+						osr_application_uri		as application_uri,
+						osr_application_title	as application_title,
+						osr_application_descr	as application_descr
+				FROM oauth_server_token
+						JOIN oauth_server_registry
+						ON ost_osr_id_ref = osr_id
+				WHERE ost_token_type = \'access\'
+				  AND ost_token      = \'%s\'
+				  AND ost_usa_id_ref = %d
+				  AND ost_token_ttl  >= NOW()
+				', $token, $user_id);
+		
+		if (empty($rs))
+		{
+			throw new OAuthException('No server_token "'.$token.'" for user "'.$user_id.'"');
+		}
+		return $rs;
+	}
+
+
+	/**
+	 * Delete a consumer access token.
+	 * 
+	 * @param string token
+	 * @param int user_id
+	 * @param boolean user_is_admin
+	 */
+	public function deleteConsumerAccessToken ( $token, $user_id, $user_is_admin = false )
+	{
+		if ($user_is_admin)
+		{
+			$this->query('
+						DELETE FROM oauth_server_token
+						WHERE ost_token 	 = \'%s\'
+						  AND ost_token_type = \'access\'
+						', $token);
+		}
+		else
+		{
+			$this->query('
+						DELETE FROM oauth_server_token
+						WHERE ost_token 	 = \'%s\'
+						  AND ost_token_type = \'access\'
+						  AND ost_usa_id_ref = %d
+						', $token, $user_id);
+		}
+	}
+
+
+	/**
+	 * Set the ttl of a consumer access token.  This is done when the
+	 * server receives a valid request with a xoauth_token_ttl parameter in it.
+	 * 
+	 * @param string token
+	 * @param int ttl
+	 */
+	public function setConsumerAccessTokenTtl ( $token, $token_ttl )
+	{
+		if ($token_ttl <= 0)
+		{
+			// Immediate delete when the token is past its ttl
+			$this->deleteConsumerAccessToken($token, 0, true);
+		}
+		else
+		{
+			// Set maximum time to live for this token
+			$this->query('
+						UPDATE oauth_server_token
+						SET ost_token_ttl = DATE_ADD(NOW(), INTERVAL %d SECOND)
+						WHERE ost_token 	 = \'%s\'
+						  AND ost_token_type = \'access\'
+						', $token_ttl, $token);
+		}
+	}
+
+
+	/**
+	 * Fetch a list of all consumer keys, secrets etc.
+	 * Returns the public (user_id is null) and the keys owned by the user
+	 * 
+	 * @param int user_id
+	 * @return array
+	 */
+	public function listConsumers ( $user_id )
+	{
+		$rs = $this->query_all_assoc('
+				SELECT	osr_id					as id,
+						osr_usa_id_ref			as user_id,
+						osr_consumer_key 		as consumer_key,
+						osr_consumer_secret		as consumer_secret,
+						osr_enabled				as enabled,
+						osr_status 				as status,
+						osr_issue_date			as issue_date,
+						osr_application_uri		as application_uri,
+						osr_application_title	as application_title,
+						osr_application_descr	as application_descr,
+						osr_requester_name		as requester_name,
+						osr_requester_email		as requester_email
+				FROM oauth_server_registry
+				WHERE (osr_usa_id_ref = %d OR osr_usa_id_ref IS NULL)
+				ORDER BY osr_application_title
+				', $user_id);
+		return $rs;
+	}
+
+
+	/**
+	 * Fetch a list of all consumer tokens accessing the account of the given user.
+	 * 
+	 * @param int user_id
+	 * @return array
+	 */
+	public function listConsumerTokens ( $user_id )
+	{
+		$rs = $this->query_all_assoc('
+				SELECT	osr_consumer_key 		as consumer_key,
+						osr_consumer_secret		as consumer_secret,
+						osr_enabled				as enabled,
+						osr_status 				as status,
+						osr_application_uri		as application_uri,
+						osr_application_title	as application_title,
+						osr_application_descr	as application_descr,
+						ost_timestamp			as timestamp,	
+						ost_token				as token,
+						ost_token_secret		as token_secret,
+						ost_referrer_host		as token_referrer_host
+				FROM oauth_server_registry
+					JOIN oauth_server_token
+					ON ost_osr_id_ref = osr_id
+				WHERE ost_usa_id_ref = %d
+				  AND ost_token_type = \'access\'
+				  AND ost_token_ttl  >= NOW()
+				ORDER BY osr_application_title
+				', $user_id);
+		return $rs;
+	}
+
+
+	/**
+	 * Check an nonce/timestamp combination.  Clears any nonce combinations
+	 * that are older than the one received.
+	 * 
+	 * @param string	consumer_key
+	 * @param string 	token
+	 * @param int		timestamp
+	 * @param string 	nonce
+	 * @exception OAuthException	thrown when the timestamp is not in sequence or nonce is not unique
+	 */
+	public function checkServerNonce ( $consumer_key, $token, $timestamp, $nonce )
+	{
+		$r = $this->query_row('
+							SELECT MAX(osn_timestamp), MAX(osn_timestamp) > %d + %d
+							FROM oauth_server_nonce
+							WHERE osn_consumer_key = \'%s\'
+							  AND osn_token        = \'%s\'
+							', $timestamp, $this->max_timestamp_skew, $consumer_key, $token);
+
+		if (!empty($r) && $r[1])
+		{
+			throw new OAuthException('Timestamp is out of sequence. Request rejected. Got '.$timestamp.' last max is '.$r[0].' allowed skew is '.$this->max_timestamp_skew);
+		}
+		
+		// Insert the new combination
+		$this->query('
+				INSERT IGNORE INTO oauth_server_nonce
+				SET osn_consumer_key	= \'%s\',
+					osn_token			= \'%s\',
+					osn_timestamp		= %d,
+					osn_nonce			= \'%s\'
+				', $consumer_key, $token, $timestamp, $nonce);
+		
+		if ($this->query_affected_rows() == 0)
+		{
+			throw new OAuthException('Duplicate timestamp/nonce combination, possible replay attack.  Request rejected.');
+		}
+
+		// Clean up all timestamps older than the one we just received
+		$this->query('
+				DELETE FROM oauth_server_nonce
+				WHERE osn_consumer_key	= \'%s\'
+				  AND osn_token			= \'%s\'
+				  AND osn_timestamp     < %d - %d
+				', $consumer_key, $token, $timestamp, $this->max_timestamp_skew);
+	}
+
+
+	/**
+	 * Add an entry to the log table
+	 * 
+	 * @param array keys (osr_consumer_key, ost_token, ocr_consumer_key, oct_token)
+	 * @param string received
+	 * @param string sent
+	 * @param string base_string
+	 * @param string notes
+	 * @param int (optional) user_id
+	 */
+	public function addLog ( $keys, $received, $sent, $base_string, $notes, $user_id = null )
+	{
+		$args = array();
+		$ps   = array();
+		foreach ($keys as $key => $value)
+		{
+			$args[] = $value;
+			$ps[]   = "olg_$key = '%s'";
+		}
+
+		if (!empty($_SERVER['REMOTE_ADDR']))
+		{
+			$remote_ip = $_SERVER['REMOTE_ADDR'];
+		}	
+		else if (!empty($_SERVER['REMOTE_IP']))
+		{
+			$remote_ip = $_SERVER['REMOTE_IP'];
+		}
+		else
+		{
+			$remote_ip = '0.0.0.0';
+		}
+
+		// Build the SQL
+		$ps[] = "olg_received  	= '%s'";						$args[] = $this->makeUTF8($received);
+		$ps[] = "olg_sent   	= '%s'";						$args[] = $this->makeUTF8($sent);
+		$ps[] = "olg_base_string= '%s'";						$args[] = $base_string;
+		$ps[] = "olg_notes   	= '%s'";						$args[] = $this->makeUTF8($notes);
+		$ps[] = "olg_usa_id_ref = NULLIF(%d,0)";				$args[] = $user_id;
+		$ps[] = "olg_remote_ip  = IFNULL(INET_ATON('%s'),0)";	$args[] = $remote_ip;
+
+		$this->query('INSERT INTO oauth_log SET '.implode(',', $ps), $args);
+	}
+	
+	
+	/**
+	 * Get a page of entries from the log.  Returns the last 100 records
+	 * matching the options given.
+	 * 
+	 * @param array options
+	 * @param int user_id	current user
+	 * @return array log records
+	 */
+	public function listLog ( $options, $user_id )
+	{
+		$where = array();
+		$args  = array();
+		if (empty($options))
+		{
+			$where[] = 'olg_usa_id_ref = %d';
+			$args[]  = $user_id;
+		}
+		else
+		{
+			foreach ($options as $option => $value)
+			{
+				if (strlen($value) > 0)
+				{
+					switch ($option)
+					{
+					case 'osr_consumer_key':
+					case 'ocr_consumer_key':
+					case 'ost_token':
+					case 'oct_token':
+						$where[] = 'olg_'.$option.' = \'%s\'';
+						$args[]  = $value;	
+						break;				
+					}
+				}
+			}
+			
+			$where[] = '(olg_usa_id_ref IS NULL OR olg_usa_id_ref = %d)';
+			$args[]  = $user_id;
+		}
+
+		$rs = $this->query_all_assoc('
+					SELECT olg_id,
+							olg_osr_consumer_key 	AS osr_consumer_key,
+							olg_ost_token			AS ost_token,
+							olg_ocr_consumer_key	AS ocr_consumer_key,
+							olg_oct_token			AS oct_token,
+							olg_usa_id_ref			AS user_id,
+							olg_received			AS received,
+							olg_sent				AS sent,
+							olg_base_string			AS base_string,
+							olg_notes				AS notes,
+							olg_timestamp			AS timestamp,
+							INET_NTOA(olg_remote_ip) AS remote_ip
+					FROM oauth_log
+					WHERE '.implode(' AND ', $where).'
+					ORDER BY olg_id DESC
+					LIMIT 0,100', $args);
+
+		return $rs;
+	}
+
+
+
+	/**
+	 * Initialise the database
+	 */
+	public function install ()
+	{
+		require_once dirname(__FILE__) . '/mysql/install.php';
+	}
+	
+	
+	/* ** Some simple helper functions for querying the mysql db ** */
+
+	/**
+	 * Perform a query, ignore the results
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 */
+	protected function query ( $sql )
+	{
+		$sql = $this->sql_printf(func_get_args());
+		if (!($res = mysql_query($sql, $this->conn)))
+		{
+			$this->sql_errcheck($sql);
+		}
+		if (is_resource($res))
+		{
+			mysql_free_result($res);
+		}
+	}
+	
+
+	/**
+	 * Perform a query, ignore the results
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return array
+	 */
+	protected function query_all_assoc ( $sql )
+	{
+		$sql = $this->sql_printf(func_get_args());
+		if (!($res = mysql_query($sql, $this->conn)))
+		{
+			$this->sql_errcheck($sql);
+		}
+		$rs = array();
+		while ($row  = mysql_fetch_assoc($res))
+		{
+			$rs[] = $row;
+		}
+		mysql_free_result($res);
+		return $rs;
+	}
+	
+	
+	/**
+	 * Perform a query, return the first row
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return array
+	 */
+	protected function query_row_assoc ( $sql )
+	{
+		$sql = $this->sql_printf(func_get_args());
+		if (!($res = mysql_query($sql, $this->conn)))
+		{
+			$this->sql_errcheck($sql);
+		}
+		if ($row = mysql_fetch_assoc($res))
+		{
+			$rs = $row;
+		}
+		else
+		{
+			$rs = false;
+		}
+		mysql_free_result($res);
+		return $rs;
+	}
+
+	
+	/**
+	 * Perform a query, return the first row
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return array
+	 */
+	protected function query_row ( $sql )
+	{
+		$sql = $this->sql_printf(func_get_args());
+		if (!($res = mysql_query($sql, $this->conn)))
+		{
+			$this->sql_errcheck($sql);
+		}
+		if ($row = mysql_fetch_array($res))
+		{
+			$rs = $row;
+		}
+		else
+		{
+			$rs = false;
+		}
+		mysql_free_result($res);
+		return $rs;
+	}
+	
+		
+	/**
+	 * Perform a query, return the first column of the first row
+	 * 
+	 * @param string sql
+	 * @param vararg arguments (for sprintf)
+	 * @return mixed
+	 */
+	protected function query_one ( $sql )
+	{
+		$sql = $this->sql_printf(func_get_args());
+		if (!($res = mysql_query($sql, $this->conn)))
+		{
+			$this->sql_errcheck($sql);
+		}
+		$val = @mysql_result($res, 0, 0);
+		mysql_free_result($res);
+		return $val;
+	}
+	
+	
+	/**
+	 * Return the number of rows affected in the last query
+	 */
+	protected function query_affected_rows ()
+	{
+		return mysql_affected_rows($this->conn);
+	}
+
+
+	/**
+	 * Return the id of the last inserted row
+	 * 
+	 * @return int
+	 */
+	protected function query_insert_id ()
+	{
+		return mysql_insert_id($this->conn);
+	}
+	
+	
+	protected function sql_printf ( $args )
+	{
+		$sql  = array_shift($args);
+		if (count($args) == 1 && is_array($args[0]))
+		{
+			$args = $args[0];
+		}
+		$args = array_map(array($this, 'sql_escape_string'), $args);
+		return vsprintf($sql, $args);
+	}
+	
+	
+	protected function sql_escape_string ( $s )
+	{
+		if (is_string($s))
+		{
+			return mysql_real_escape_string($s, $this->conn);
+		}
+		else if (is_null($s))
+		{
+			return NULL;
+		}
+		else if (is_bool($s))
+		{
+			return intval($s);
+		}
+		else if (is_int($s) || is_float($s))
+		{
+			return $s;
+		}
+		else
+		{
+			return mysql_real_escape_string(strval($s), $this->conn);
+		}
+	}
+	
+	
+	protected function sql_errcheck ( $sql )
+	{
+		if (mysql_errno($this->conn))
+		{
+			$msg =  "SQL Error in OAuthStoreMySQL: ".mysql_error($this->conn)."\n\n" . $sql;
+			throw new OAuthException($msg);
+		}
+	}
+}
+
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/store/mysql/install.php b/mod/oauth_api/vendors/oauth/library/store/mysql/install.php
new file mode 100644
index 000000000..0015da5e3
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/store/mysql/install.php
@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * Installs all tables in the mysql.sql file, using the default mysql connection
+ */
+
+/* Change and uncomment this when you need to: */
+
+/*
+mysql_connect('localhost', 'root');
+if (mysql_errno())
+{
+	die(' Error '.mysql_errno().': '.mysql_error());
+}
+mysql_select_db('test');
+*/
+
+$sql = file_get_contents(dirname(__FILE__) . '/mysql.sql');
+$ps  = explode('#--SPLIT--', $sql);
+
+foreach ($ps as $p)
+{
+	$p = preg_replace('/^\s*#.*$/m', '', $p);
+	
+	mysql_query($p);
+	if (mysql_errno())
+	{
+		die(' Error '.mysql_errno().': '.mysql_error());
+	}
+}
+
+?>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/library/store/mysql/mysql.sql b/mod/oauth_api/vendors/oauth/library/store/mysql/mysql.sql
new file mode 100644
index 000000000..d652a1c99
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/library/store/mysql/mysql.sql
@@ -0,0 +1,219 @@
+# Datamodel for OAuthStoreMySQL
+#
+# You need to add the foreign key constraints for the user ids your are using.
+# I have commented the constraints out, just look for 'usa_id_ref' to enable them.
+#
+# The --SPLIT-- markers are used by the install.php script
+#   
+# @version $Id: mysql.sql 51 2008-10-15 15:15:47Z marcw@pobox.com $
+# @author Marc Worrell
+#
+
+# Changes:
+#
+# 2008-10-15 (on r48) Added ttl to consumer and server tokens, added named server tokens
+#
+#			ALTER TABLE oauth_server_token 
+#			ADD ost_token_ttl datetime not null default '9999-12-31',
+#			ADD KEY (ost_token_ttl);
+#
+#			ALTER TABLE oauth_consumer_token 
+#			ADD oct_name varchar(64) binary not null default '',
+#			ADD oct_token_ttl datetime not null default '9999-12-31',
+#			DROP KEY oct_usa_id_ref,
+#			ADD UNIQUE KEY (oct_usa_id_ref, oct_ocr_id_ref, oct_token_type, oct_name),
+#			ADD KEY (oct_token_ttl);
+#
+# 2008-09-09 (on r5) Added referrer host to server access token
+#
+#			ALTER TABLE oauth_server_token ADD ost_referrer_host VARCHAR(128) NOT NULL;
+#
+
+
+#
+# Log table to hold all OAuth request when you enabled logging
+#
+
+CREATE TABLE IF NOT EXISTS oauth_log (
+    olg_id                  int(11) not null auto_increment,
+    olg_osr_consumer_key    varchar(64) binary,
+    olg_ost_token           varchar(64) binary,
+    olg_ocr_consumer_key    varchar(64) binary,
+    olg_oct_token           varchar(64) binary,
+    olg_usa_id_ref          int(11),
+    olg_received            text not null,
+    olg_sent                text not null,
+    olg_base_string         text not null,
+    olg_notes               text not null,
+    olg_timestamp           timestamp not null default current_timestamp,
+    olg_remote_ip           bigint not null,
+
+    primary key (olg_id),
+    key (olg_osr_consumer_key, olg_id),
+    key (olg_ost_token, olg_id),
+    key (olg_ocr_consumer_key, olg_id),
+    key (olg_oct_token, olg_id),
+    key (olg_usa_id_ref, olg_id)
+    
+#   , foreign key (olg_usa_id_ref) references any_user_auth (usa_id_ref)
+#       on update cascade
+#       on delete cascade
+) engine=InnoDB default charset=utf8;
+
+#--SPLIT--
+
+#
+# /////////////////// CONSUMER SIDE ///////////////////
+#
+
+# This is a registry of all consumer codes we got from other servers
+# The consumer_key/secret is obtained from the server
+# We also register the server uri, so that we can find the consumer key and secret
+# for a certain server.  From that server we can check if we have a token for a
+# particular user.
+
+CREATE TABLE IF NOT EXISTS oauth_consumer_registry (
+    ocr_id                  int(11) not null auto_increment,
+    ocr_usa_id_ref          int(11),
+    ocr_consumer_key        varchar(64) binary not null,
+    ocr_consumer_secret     varchar(64) binary not null,
+    ocr_signature_methods   varchar(255) not null default 'HMAC-SHA1,PLAINTEXT',
+    ocr_server_uri          varchar(255) not null,
+    ocr_server_uri_host     varchar(128) not null,
+    ocr_server_uri_path     varchar(128) binary not null,
+
+    ocr_request_token_uri   varchar(255) not null,
+    ocr_authorize_uri       varchar(255) not null,
+    ocr_access_token_uri    varchar(255) not null,
+    ocr_timestamp           timestamp not null default current_timestamp,
+
+    primary key (ocr_id),
+    unique key (ocr_consumer_key, ocr_usa_id_ref),
+    key (ocr_server_uri),
+    key (ocr_server_uri_host, ocr_server_uri_path),
+    key (ocr_usa_id_ref)
+
+#   , foreign key (ocr_usa_id_ref) references any_user_auth(usa_id_ref)
+#       on update cascade
+#       on delete set null
+) engine=InnoDB default charset=utf8;
+
+#--SPLIT--
+
+# Table used to sign requests for sending to a server by the consumer
+# The key is defined for a particular user.  Only one single named
+# key is allowed per user/server combination
+
+CREATE TABLE IF NOT EXISTS oauth_consumer_token (
+    oct_id                  int(11) not null auto_increment,
+    oct_ocr_id_ref          int(11) not null,
+    oct_usa_id_ref          int(11) not null,
+    oct_name                varchar(64) binary not null default '',
+    oct_token               varchar(64) binary not null,
+    oct_token_secret        varchar(64) binary not null,
+    oct_token_type          enum('request','authorized','access'),
+    oct_token_ttl           datetime not null default '9999-12-31',
+    oct_timestamp           timestamp not null default current_timestamp,
+
+    primary key (oct_id),
+    unique key (oct_ocr_id_ref, oct_token),
+    unique key (oct_usa_id_ref, oct_ocr_id_ref, oct_token_type, oct_name),
+	key (oct_token_ttl),
+
+    foreign key (oct_ocr_id_ref) references oauth_consumer_registry (ocr_id)
+        on update cascade
+        on delete cascade
+
+#   , foreign key (oct_usa_id_ref) references any_user_auth (usa_id_ref)
+#       on update cascade
+#       on delete cascade           
+) engine=InnoDB default charset=utf8;
+
+#--SPLIT--
+
+
+#
+# ////////////////// SERVER SIDE /////////////////
+#
+
+# Table holding consumer key/secret combos an user issued to consumers. 
+# Used for verification of incoming requests.
+
+CREATE TABLE IF NOT EXISTS oauth_server_registry (
+    osr_id                      int(11) not null auto_increment,
+    osr_usa_id_ref              int(11),
+    osr_consumer_key            varchar(64) binary not null,
+    osr_consumer_secret         varchar(64) binary not null,
+    osr_enabled                 tinyint(1) not null default '1',
+    osr_status                  varchar(16) not null,
+    osr_requester_name          varchar(64) not null,
+    osr_requester_email         varchar(64) not null,
+    osr_callback_uri            varchar(255) not null,
+    osr_application_uri         varchar(255) not null,
+    osr_application_title       varchar(80) not null,
+    osr_application_descr       text not null,
+    osr_application_notes       text not null,
+    osr_application_type        varchar(20) not null,
+    osr_application_commercial  tinyint(1) not null default '0',
+    osr_issue_date              datetime not null,
+    osr_timestamp               timestamp not null default current_timestamp,
+
+    primary key (osr_id),
+    unique key (osr_consumer_key),
+    key (osr_usa_id_ref)
+
+#   , foreign key (osr_usa_id_ref) references any_user_auth(usa_id_ref)
+#       on update cascade
+#       on delete set null
+) engine=InnoDB default charset=utf8;
+
+#--SPLIT--
+
+# Nonce used by a certain consumer, every used nonce should be unique, this prevents
+# replaying attacks.  We need to store all timestamp/nonce combinations for the
+# maximum timestamp received.
+
+CREATE TABLE IF NOT EXISTS oauth_server_nonce (
+    osn_id                  int(11) not null auto_increment,
+    osn_consumer_key        varchar(64) binary not null,
+    osn_token               varchar(64) binary not null,
+    osn_timestamp           bigint not null,
+    osn_nonce               varchar(80) binary not null,
+
+    primary key (osn_id),
+    unique key (osn_consumer_key, osn_token, osn_timestamp, osn_nonce)
+) engine=InnoDB default charset=utf8;
+
+#--SPLIT--
+
+# Table used to verify signed requests sent to a server by the consumer
+# When the verification is succesful then the associated user id is returned.
+
+CREATE TABLE IF NOT EXISTS oauth_server_token (
+    ost_id                  int(11) not null auto_increment,
+    ost_osr_id_ref          int(11) not null,
+    ost_usa_id_ref          int(11) not null,
+    ost_token               varchar(64) binary not null,
+    ost_token_secret        varchar(64) binary not null,
+    ost_token_type          enum('request','access'),
+    ost_authorized          tinyint(1) not null default '0',
+	ost_referrer_host		varchar(128) not null,
+	ost_token_ttl           datetime not null default '9999-12-31',
+    ost_timestamp           timestamp not null default current_timestamp,
+
+	primary key (ost_id),
+    unique key (ost_token),
+    key (ost_osr_id_ref),
+	key (ost_token_ttl),
+
+	foreign key (ost_osr_id_ref) references oauth_server_registry (osr_id)
+        on update cascade
+        on delete cascade
+
+#   , foreign key (ost_usa_id_ref) references any_user_auth (usa_id_ref)
+#       on update cascade
+#       on delete cascade           
+) engine=InnoDB default charset=utf8;
+
+
+
diff --git a/mod/oauth_api/vendors/oauth/test/discovery/xrds-fireeagle.xrds b/mod/oauth_api/vendors/oauth/test/discovery/xrds-fireeagle.xrds
new file mode 100644
index 000000000..0f5eba222
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/test/discovery/xrds-fireeagle.xrds
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<XRDS xmlns="xri://$xrds">
+  
+  <!-- FireEagle User-Centric OAuth Configuration -->
+  <XRD xml:id="oauth" xmlns:simple="http://xrds-simple.net/core/1.0" xmlns="xri://$XRD*($v*2.0)" version="2.0">
+    
+    <Type>xri://$xrds*simple</Type>
+    <Expires>2008-04-15T00:25:30-07:00</Expires>
+
+    <!-- Request Token -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/request</Type>
+      
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/post-body</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/PLAINTEXT</Type>
+
+      <URI>https://fireeagle.yahooapis.com/oauth/request_token</URI>
+    </Service>
+
+    <!-- User Authorization -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/authorize</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+
+      <URI>https://fireeagle.yahooapis.com/oauth/access_token</URI>
+    </Service>
+
+    <!-- Access Token -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/access</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/post-body</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/PLAINTEXT</Type>
+
+      <URI>http://fireeagle.yahoo.net/oauth/authorize</URI>
+    </Service>
+
+    <!-- Protected Resources -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/resource</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/post-body</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/PLAINTEXT</Type>
+    </Service>
+
+    <!-- Consumer Identity -->
+    
+      <!-- Manual Consumer Identity Allocation -->
+      <Service>
+        <Type>http://oauth.net/discovery/1.0/consumer-identity/oob</Type>
+        <URI>https://fireeagle.yahoo.net/developer/create</URI>
+      </Service>
+  </XRD>
+  
+  <!-- Global Resource Definition -->
+  
+  <XRD xmlns="xri://$XRD*($v*2.0)" version="2.0">
+    <Type>xri://$xrds*simple</Type>
+    
+    <!-- OAuth Endpoints Definition -->
+    <Service>
+      <Type>http://oauth.net/discovery/1.0</Type>
+      <URI>#oauth</URI>
+    </Service>
+  </XRD>
+  
+</XRDS>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/test/discovery/xrds-getsatisfaction.xrds b/mod/oauth_api/vendors/oauth/test/discovery/xrds-getsatisfaction.xrds
new file mode 100644
index 000000000..ab94b5bea
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/test/discovery/xrds-getsatisfaction.xrds
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<XRDS xmlns="xri://$xrds">
+  
+  <XRD xml:id="oauth" xmlns:simple="http://xrds-simple.net/core/1.0" xmlns="xri://$XRD*($v*2.0)" version="2.0">
+    <Type>xri://$xrds*simple</Type>
+    <Expires>2008-04-30T23:59:59Z</Expires>
+
+    <!-- Request Token -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/request</Type>
+      
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+      
+      <URI>http://getsatisfaction.com/api/request_token</URI>
+    </Service>
+
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/authorize</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+
+      <URI>http://getsatisfaction.com/api/authorize</URI>
+    </Service>
+
+    <!-- Access Token -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/access</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+
+      <URI>http://getsatisfaction.com/api/access_token</URI>
+    </Service>
+
+    <!-- Protected Resources -->
+    <!-- 
+      
+      To test successful access token grant, make a request against
+      
+        http://api.getsatisfaction.com/me
+
+      The API should respond with hCard of the user who authorized the token
+      -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/resource</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>      
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+
+    </Service>
+
+    <!-- Consumer Identity -->
+    
+    <Service>
+      <Type>http://oauth.net/discovery/1.0/consumer-identity/oob</Type>
+      <URI>http://getsatisfaction.com/me/extensions/new</URI>
+    </Service>
+  </XRD>
+  
+  <!-- Global Resource Definition -->
+  
+  <XRD xmlns="xri://$XRD*($v*2.0)" version="2.0">
+    <Type>xri://$xrds*simple</Type>
+    
+    <!-- OAuth Endpoints Definition -->
+    <Service priority="10">
+      <Type>http://oauth.net/discovery/1.0</Type>
+      <URI>#oauth</URI>
+    </Service>
+  </XRD>
+  
+</XRDS>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/test/discovery/xrds-magnolia.xrds b/mod/oauth_api/vendors/oauth/test/discovery/xrds-magnolia.xrds
new file mode 100644
index 000000000..361b5c9a1
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/test/discovery/xrds-magnolia.xrds
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<XRDS xmlns="xri://$xrds">
+  
+  <!-- Ma.gnolia OAuth Configuration -->
+  <XRD xml:id="oauth" xmlns="xri://$XRD*($v*2.0)" version="2.0">
+    
+    <Type>xri://$xrds*simple</Type>
+    <Expires>2008-04-13T07:34:58Z</Expires>
+
+    <!-- Request Token -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/request</Type>
+      
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/post-body</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/RSA-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/PLAINTEXT</Type>
+
+      <URI>https://ma.gnolia.com/oauth/get_request_token</URI>
+    </Service>
+
+    <!-- User Authorization (HTTPS Prefered) -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/authorize</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+
+      <URI priority="10">https://ma.gnolia.com/oauth/authorize</URI>
+      <URI priority="20">http://ma.gnolia.com/oauth/authorize</URI>
+    </Service>
+
+    <!-- Access Token -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/access</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/post-body</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/RSA-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/PLAINTEXT</Type>
+
+      <URI>https://ma.gnolia.com/oauth/get_access_token</URI>
+    </Service>
+
+    <!-- Protected Resources -->
+    <Service>
+      <Type>http://oauth.net/core/1.0/endpoint/resource</Type>
+
+      <Type>http://oauth.net/core/1.0/parameters/auth-header</Type>
+      <Type>http://oauth.net/core/1.0/parameters/post-body</Type>
+      <Type>http://oauth.net/core/1.0/parameters/uri-query</Type>
+      <Type>http://oauth.net/core/1.0/signature/HMAC-SHA1</Type>
+      <Type>http://oauth.net/core/1.0/signature/RSA-SHA1</Type>
+    </Service>
+
+    <!-- Consumer Identity -->
+    
+      <!-- Manual Consumer Identity Allocation -->
+      <Service>
+        <Type>http://oauth.net/discovery/1.0/consumer-identity/oob</Type>
+        <URI>http://ma.gnolia.com/applications/new</URI>
+      </Service>
+  </XRD>
+  
+  <!-- Global Resource Definition -->
+  
+  <XRD xmlns="xri://$XRD*($v*2.0)" version="2.0">
+    <Type>xri://$xrds*simple</Type>
+    
+    <!-- OAuth Endpoints Definition -->
+    <Service priority="10">
+      <Type>http://oauth.net/discovery/1.0</Type>
+      <URI>#oauth</URI>
+    </Service>
+  </XRD>
+  
+</XRDS>
\ No newline at end of file
diff --git a/mod/oauth_api/vendors/oauth/test/oauth_test.php b/mod/oauth_api/vendors/oauth/test/oauth_test.php
new file mode 100644
index 000000000..0c0504c70
--- /dev/null
+++ b/mod/oauth_api/vendors/oauth/test/oauth_test.php
@@ -0,0 +1,188 @@
+<?php
+
+/**
+ * Tests of OAuth implementation.
+ * 
+ * @version $Id$
+ * @author Marc Worrell <marcw@pobox.com>
+ * @date  Nov 29, 2007 3:46:56 PM
+ * @see http://wiki.oauth.net/TestCases
+ * 
+ * The MIT License
+ * 
+ * Copyright (c) 2007-2008 Mediamatic Lab
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+require_once dirname(__FILE__) . '/../library/OAuthRequest.php';
+require_once dirname(__FILE__) . '/../library/OAuthRequester.php';
+require_once dirname(__FILE__) . '/../library/OAuthRequestSigner.php';
+require_once dirname(__FILE__) . '/../library/OAuthRequestVerifier.php';
+
+if (!function_exists('getallheaders'))
+{
+	function getallheaders()
+	{
+		return array();
+	}
+}
+
+
+oauth_test();
+
+function oauth_test ()
+{
+	error_reporting(E_ALL);
+
+	header('Content-Type: text/plain; charset=utf-8');
+	
+	echo "Performing OAuth module tests.\n\n";
+	echo "See also: http://wiki.oauth.net/TestCases\n\n";
+	
+	assert_options(ASSERT_CALLBACK, 'oauth_assert_handler');
+	assert_options(ASSERT_WARNING,  0);
+	
+	$req = new OAuthRequest('http://www.example.com', 'GET');
+
+	echo "***** Parameter Encoding *****\n\n";
+	
+	assert('$req->urlencode(\'abcABC123\') == \'abcABC123\'');
+	assert('$req->urlencode(\'-._~\') == \'-._~\'');
+	assert('$req->urlencode(\'%\') == \'%25\'');
+	assert('$req->urlencode(\'&=*\') == \'%26%3D%2A\'');
+	assert('$req->urlencode(\'&=*\') == \'%26%3D%2A\'');
+	assert('$req->urlencode("\n") == \'%0A\'');
+	assert('$req->urlencode(" ") == \'%20\'');
+	assert('$req->urlencode("\x7f") == \'%7F\'');
+
+
+	echo "***** Normalize Request Parameters *****\n\n";
+	
+	$req = new OAuthRequest('http://example.com/?name', 'GET');
+	assert('$req->getNormalizedParams() == \'name=\'');
+
+	$req = new OAuthRequest('http://example.com/?a=b', 'GET');
+	assert('$req->getNormalizedParams() == \'a=b\'');
+	
+	$req = new OAuthRequest('http://example.com/?a=b&c=d', 'GET');
+	assert('$req->getNormalizedParams() == \'a=b&c=d\'');
+	
+	// At this moment we don't support two parameters with the same name
+	// so I changed this test case to "a=" and "b=" and not "a=" and "a="
+	$req = new OAuthRequest('http://example.com/?b=x!y&a=x+y', 'GET');
+	assert('$req->getNormalizedParams() == \'a=x%20y&b=x%21y\'');
+	
+	$req = new OAuthRequest('http://example.com/?x!y=a&x=a', 'GET');
+	assert('$req->getNormalizedParams() == \'x=a&x%21y=a\'');
+	
+
+	echo "***** Base String *****\n\n";
+	
+	$req  = new OAuthRequest('http://example.com/?n=v', 'GET');
+	assert('$req->signatureBaseString() == \'GET&http%3A%2F%2Fexample.com%2F&n%3Dv\'');
+	
+	$req = new OAuthRequest(
+							'https://photos.example.net/request_token', 
+							'POST',
+							'oauth_version=1.0&oauth_consumer_key=dpf43f3p2l4k3l03&oauth_timestamp=1191242090&oauth_nonce=hsu94j3884jdopsl&oauth_signature_method=PLAINTEXT&oauth_signature=ignored',
+							array('X-OAuth-Test' => true));
+	assert('$req->signatureBaseString() == \'POST&https%3A%2F%2Fphotos.example.net%2Frequest_token&oauth_consumer_key%3Ddpf43f3p2l4k3l03%26oauth_nonce%3Dhsu94j3884jdopsl%26oauth_signature_method%3DPLAINTEXT%26oauth_timestamp%3D1191242090%26oauth_version%3D1.0\'');
+
+	$req = new OAuthRequest(
+							'http://photos.example.net/photos?file=vacation.jpg&size=original&oauth_version=1.0&oauth_consumer_key=dpf43f3p2l4k3l03&oauth_token=nnch734d00sl2jdk&oauth_timestamp=1191242096&oauth_nonce=kllo9940pd9333jh&oauth_signature=ignored&oauth_signature_method=HMAC-SHA1', 
+							'GET');
+	assert('$req->signatureBaseString() == \'GET&http%3A%2F%2Fphotos.example.net%2Fphotos&file%3Dvacation.jpg%26oauth_consumer_key%3Ddpf43f3p2l4k3l03%26oauth_nonce%3Dkllo9940pd9333jh%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1191242096%26oauth_token%3Dnnch734d00sl2jdk%26oauth_version%3D1.0%26size%3Doriginal\'');
+
+
+	echo "***** HMAC-SHA1 *****\nRequest signing\n";
+
+	OAuthStore::instance('MySQL', array('conn'=>false));
+	$req = new OAuthRequestSigner('http://photos.example.net/photos?file=vacation.jpg&size=original', 'GET');	
+
+	assert('$req->urldecode($req->calculateDataSignature(\'bs\', \'cs\', \'\',   \'HMAC-SHA1\')) == \'egQqG5AJep5sJ7anhXju1unge2I=\'');
+	assert('$req->urldecode($req->calculateDataSignature(\'bs\', \'cs\', \'ts\', \'HMAC-SHA1\')) == \'VZVjXceV7JgPq/dOTnNmEfO0Fv8=\'');
+	
+	$secrets = array(
+				'consumer_key'		=> 'dpf43f3p2l4k3l03',
+				'consumer_secret'	=> 'kd94hf93k423kf44',
+				'token'				=> 'nnch734d00sl2jdk',
+				'token_secret'		=> 'pfkkdhi9sl3r4s00',
+				'signature_methods'	=> array('HMAC-SHA1'),
+				'nonce'				=> 'kllo9940pd9333jh',
+				'timestamp'			=> '1191242096'
+				);
+	$req->sign(0, $secrets);
+	assert('$req->getParam(\'oauth_signature\', true) == \'tR3+Ty81lMeYAr/Fid0kMTYa/WM=\'');
+
+	echo "***** HMAC-SHA1 *****\nRequest verification\n";
+
+	$req = new OAuthRequestVerifier(
+				'http://photos.example.net/photos?file=vacation.jpg&size=original'
+				.'&oauth_consumer_key=dpf43f3p2l4k3l03&oauth_token=nnch734d00sl2jdk'
+				.'&oauth_signature_method=HMAC-SHA1&oauth_nonce=kllo9940pd9333jh'
+				.'&oauth_timestamp=1191242096&oauth_version=1.0'
+				.'&oauth_signature='.rawurlencode('tR3+Ty81lMeYAr/Fid0kMTYa/WM=')
+				, 'GET');
+	
+	$req->verifySignature('kd94hf93k423kf44', 'pfkkdhi9sl3r4s00');
+
+	echo "\n";
+	echo "***** Yahoo! test case ******\n\n";
+
+	OAuthStore::instance('MySQL', array('conn'=>false));
+	$req = new OAuthRequestSigner('http://example.com:80/photo', 'GET');
+	
+	$req->setParam('title',   'taken with a 30% orange filter');
+	$req->setParam('file',    'mountain & water view');
+	$req->setParam('format',  'jpeg');
+	$req->setParam('include', array('date','aperture'));
+
+	$secrets = array(
+				'consumer_key'		=> '1234=asdf=4567',
+				'consumer_secret'	=> 'erks823*43=asd&123ls%23',
+				'token'				=> 'asdf-4354=asew-5698',
+				'token_secret'		=> 'dis9$#$Js009%==',
+				'signature_methods'	=> array('HMAC-SHA1'),
+				'nonce'				=> '3jd834jd9',
+				'timestamp'			=> '12303202302'
+				);
+	$req->sign(0, $secrets);
+
+	// echo "Basestring:\n",$req->signatureBaseString(), "\n\n";
+
+	//echo "queryString:\n",$req->getQueryString(), "\n\n";
+	assert('$req->getQueryString() == \'title=taken%20with%20a%2030%25%20orange%20filter&file=mountain%20%26%20water%20view&format=jpeg&include=date&include=aperture\'');	
+
+	//echo "oauth_signature:\n",$req->getParam('oauth_signature', true),"\n\n";
+	assert('$req->getParam(\'oauth_signature\', true) == \'jMdUSR1vOr3SzNv3gZ5DDDuGirA=\'');
+	
+	echo "\n\nFinished.\n";
+}
+
+
+function oauth_assert_handler ( $file, $line, $code )
+{
+	echo "\nAssertion failed in $file:$line
+   $code\n\n";
+}
+
+/* vi:set ts=4 sts=4 sw=4 binary noeol: */
+
+?>
\ No newline at end of file