Merge branch 'oauth2' of https://github.com/anaqreon/hubzilla into oauth2

3 files changed, 280 insertions, 33 deletions

diff --git a/Zotlabs/Module/Authorize.php b/Zotlabs/Module/Authorize.php
index 254700b4e..c76dfb9df 100644
--- a/Zotlabs/Module/Authorize.php
+++ b/Zotlabs/Module/Authorize.php
@@ -4,59 +4,90 @@ namespace Zotlabs\Module;
 
 use Zotlabs\Identity\OAuth2Storage;
 
-
 class Authorize extends \Zotlabs\Web\Controller {
 
-	function init() {
-
-		// workaround for HTTP-auth in CGI mode
-		if (x($_SERVER, 'REDIRECT_REMOTE_USER')) {
-			$userpass = base64_decode(substr($_SERVER["REDIRECT_REMOTE_USER"], 6)) ;
-			if(strlen($userpass)) {
-				list($name, $password) = explode(':', $userpass);
-				$_SERVER['PHP_AUTH_USER'] = $name;
-				$_SERVER['PHP_AUTH_PW'] = $password;
-			}
+	function get() {
+		if (!local_channel()) {
+			return login();
+		} else {
+			// TODO: Fully implement the dynamic client registration protocol:
+			// OpenID Connect Dynamic Client Registration 1.0 Client Metadata
+			// http://openid.net/specs/openid-connect-registration-1_0.html
+			$app = array(
+				'name' => (x($_REQUEST, 'client_name') ? urldecode($_REQUEST['client_name']) : 'Unknown App'),
+				'icon' => (x($_REQUEST, 'logo_uri') ? urldecode($_REQUEST['logo_uri']) : z_root() . '/images/icons/plugin.png'),
+				'url' => (x($_REQUEST, 'client_uri') ? urldecode($_REQUEST['client_uri']) : ''),
+			);
+			$o .= replace_macros(get_markup_template('oauth_authorize.tpl'), array(
+				'$title' => '',
+				'$authorize' => 'Do you authorize the app <a style="float: none;" href="' . $app['url'] . '">' . $app['name'] . '</a> to access your channel data?',
+				'$app' => $app,
+				'$yes' => t('Allow'),
+				'$no' => t('Deny'),
+				'$client_id' => (x($_REQUEST, 'client_id') ? $_REQUEST['client_id'] : ''),
+				'$redirect_uri' => (x($_REQUEST, 'redirect_uri') ? $_REQUEST['redirect_uri'] : ''),
+				'$state' => (x($_REQUEST, 'state') ? $_REQUEST['state'] : ''),
+			));
+			return $o;
 		}
+	}
 
-		if (x($_SERVER, 'HTTP_AUTHORIZATION')) {
-			$userpass = base64_decode(substr($_SERVER["HTTP_AUTHORIZATION"], 6)) ;
-			if(strlen($userpass)) {
-				list($name, $password) = explode(':', $userpass);
-				$_SERVER['PHP_AUTH_USER'] = $name;
-				$_SERVER['PHP_AUTH_PW'] = $password;
-			}
+	function post() {
+		if (!local_channel()) {
+			return $this->get();
 		}
 
-		$s = new \Zotlabs\Identity\OAuth2Server(new OAuth2Storage(\DBA::$dba->db));
+		$storage = new OAuth2Storage(\DBA::$dba->db);
+		$s = new \Zotlabs\Identity\OAuth2Server($storage);
+
+		// TODO: The automatic client registration protocol below should adhere more
+		// closely to "OAuth 2.0 Dynamic Client Registration Protocol" defined
+		// at https://tools.ietf.org/html/rfc7591
+		
+		// If no client_id was provided, generate a new one.
+		if (x($_POST, 'client_id')) {
+			$client_id = $_POST['client_id'];
+		} else {
+			$client_id = $_POST['client_id'] = random_string(16);
+		}
+		// If no redirect_uri was provided, generate a fake one.
+		if (x($_POST, 'redirect_uri')) {
+			$redirect_uri = $_POST['redirect_uri'];
+		} else {
+			$redirect_uri = $_POST['redirect_uri'] = 'https://fake.example.com/oauth';
+		}
 
 		$request = \OAuth2\Request::createFromGlobals();
 		$response = new \OAuth2\Response();
 
-		// validate the authorize request
-		if (! $s->validateAuthorizeRequest($request, $response)) {
+		// If the client is not registered, add to the database
+		if (!$client = $storage->getClientDetails($client_id)) {
+			$client_secret = random_string(16);
+			// Client apps are registered per channel
+			$user_id = local_channel();
+			$storage->setClientDetails($client_id, $client_secret, $redirect_uri, 'authorization_code', null, $user_id);
+			
+		}
+		if (!$client = $storage->getClientDetails($client_id)) {
+			// There was an error registering the client.
 			$response->send();
 			killme();
 		}
+		$response->setParameter('client_secret', $client['client_secret']);
 
-		// display an authorization form
-		if (empty($_POST)) {
-
-			return '
-<form method="post">
-  <label>Do You Authorize TestClient?</label><br />
-  <input type="submit" name="authorized" value="yes">
-  <input type="submit" name="authorized" value="no">
-</form>';
+		// validate the authorize request
+		if (!$s->validateAuthorizeRequest($request, $response)) {
+			$response->send();
+			killme();
 		}
 
 		// print the authorization code if the user has authorized your client
-		$is_authorized = ($_POST['authorized'] === 'yes');
+		$is_authorized = ($_POST['authorize'] === 'allow');
 		$s->handleAuthorizeRequest($request, $response, $is_authorized, local_channel());
 		if ($is_authorized) {
 			// this is only here so that you get to see your code in the cURL request. Otherwise,
 			// we'd redirect back to the client
-			$code = substr($response->getHttpHeader('Location'), strpos($response->getHttpHeader('Location'), 'code=')+5, 40);
+			$code = substr($response->getHttpHeader('Location'), strpos($response->getHttpHeader('Location'), 'code=') + 5, 40);
 			echo("SUCCESS! Authorization Code: $code");
 		}
 
diff --git a/Zotlabs/Module/Oauth2testvehicle.php b/Zotlabs/Module/Oauth2testvehicle.php
new file mode 100644
index 000000000..82e309f1c
--- /dev/null
+++ b/Zotlabs/Module/Oauth2testvehicle.php
@@ -0,0 +1,215 @@
+<?php
+
+namespace Zotlabs\Module;
+
+/**
+ * The OAuth2TestVehicle class is a way to test the registration of an OAuth2
+ * client app. It allows you to walk through the steps of registering a client,
+ * requesting an authorization code for that client, and then requesting an 
+ * access token for use in authentication against the Hubzilla API endpoints.
+ */
+class OAuth2TestVehicle extends \Zotlabs\Web\Controller {
+
+	function init() {
+		
+		// If there is a 'code' and 'state' parameter then this is a client app 
+		// callback issued after the authorization code request
+		// TODO: Check state value and compare to original sent value
+			// "You should first compare this state value to ensure it matches the 
+			// one you started with. You can typically store the state value in a 
+			// cookie, and compare it when the user comes back. This ensures your 
+			// redirection endpoint isn't able to be tricked into attempting to 
+			// exchange arbitrary authorization codes."
+		$_SESSION['redirect_uri'] = 'http://hub.localhost/oauth2testvehicle';
+		$_SESSION['authorization_code'] = (x($_REQUEST, 'code') ? $_REQUEST['code'] : $_SESSION['authorization_code']);
+		$_SESSION['state'] = (x($_REQUEST, 'state') ? $_REQUEST['state'] : $_SESSION['state'] );
+		$_SESSION['client_id'] = (x($_REQUEST, 'client_id') ? $_REQUEST['client_id'] : $_SESSION['client_id'] );
+		$_SESSION['client_secret'] = (x($_REQUEST, 'client_secret') ? $_REQUEST['client_secret'] : $_SESSION['client_secret']);
+		$_SESSION['access_token'] = (x($_REQUEST, 'access_token') ? $_REQUEST['access_token'] : $_SESSION['access_token'] );
+		$_SESSION['api_response'] = (x($_SESSION, 'api_response') ? $_SESSION['api_response'] : '');
+	}
+	function get() {
+		
+		$o .= replace_macros(get_markup_template('oauth2testvehicle.tpl'), array(
+			'$baseurl' => z_root(),
+			'$api_response' => $_SESSION['api_response'],
+			/*
+			  endpoints => array(
+			  array(
+			  'path_to_endpoint',
+			  array(
+			  array('field_name_1', 'value'),
+			  array('field_name_2', 'value'),
+			  ...
+			  ),
+			  'submit_button_name',
+			  'Description of API action'
+			  )
+			  )
+			 */
+			'$endpoints' => array(
+				array(
+					'oauth2testvehicle',
+					array(
+						array(
+							'action', 'delete_db'
+						)
+					),
+					'oauth2test_delete_db',
+					'Delete the OAuth2 database tables',
+					'POST',
+					($_SESSION['success'] === 'delete_db'),
+				),
+				array(
+					'oauth2testvehicle',
+					array(
+						array(
+							'action', 'create_db'
+						)
+					),
+					'oauth2test_create_db',
+					'Create the OAuth2 database tables',
+					'POST',
+					($_SESSION['success'] === 'create_db'),
+				),
+				array(
+					'authorize',
+					array(
+						array('response_type', 'code'),
+						array('client_id', (x($_REQUEST, 'client_id') ? $_REQUEST['client_id'] : 'oauth2_test_app')),
+						array('redirect_uri', $_SESSION['redirect_uri']),
+						array('state', 'xyz'),
+						// OpenID Connect Dynamic Client Registration 1.0 Client Metadata
+						// http://openid.net/specs/openid-connect-registration-1_0.html
+						array('client_name', 'OAuth2 Test App'),
+						array('logo_uri', urlencode(z_root() . '/images/icons/plugin.png')),
+						array('client_uri', urlencode('https://client.example.com/website')),
+						array('application_type', 'web'), // would be 'native' for mobile app
+					),
+					'oauth_authorize',
+					'Authorize a test client app',
+					'GET',
+					(($_REQUEST['code'] && $_REQUEST['state']) ? true : false),
+				),
+				array(
+					'oauth2testvehicle',
+					array(
+						array('action', 'request_token'),
+						array('grant_type', 'authorization_code'),
+						array('code', $_SESSION['authorization_code']),
+						array('redirect_uri', $_SESSION['redirect_uri']),
+						array('client_id', ($_SESSION['client_id'] ? $_SESSION['client_id'] : 'oauth2_test_app')),
+						array('client_secret', $_SESSION['client_secret']),
+					),
+					'oauth_token_request',
+					'Request a token',
+					'POST',
+					($_SESSION['success'] === 'request_token'),
+				),
+				array(
+					'oauth2testvehicle',
+					array(
+						array('action', 'api_files'),
+						array('access_token', $_SESSION['access_token']),
+					),
+					'oauth_api_files',
+					'API: Get channel files',
+					'POST',
+					($_SESSION['success'] === 'api_files'),
+				)
+			)
+		));
+		$_SESSION['success'] = '';
+		return $o;
+	}
+
+	function post() {
+
+		switch ($_POST['action']) {
+			case 'api_files':
+				$access_token = $_SESSION['access_token'];
+				$url = z_root() . '/api/z/1.0/files/';				
+				$headers = [];
+				$headers[] = 'Authorization: Bearer ' . $access_token;
+				$post = z_fetch_url($url, false, 0, array(
+					'custom' => 'GET',
+					'headers' => $headers,
+				));
+				logger(json_encode($post, JSON_PRETTY_PRINT), LOGGER_DEBUG);
+				$response = json_decode($post['body'], true);
+				$_SESSION['api_response'] = json_encode($response, JSON_PRETTY_PRINT);
+				break;
+			case 'request_token':
+				$grant_type = (x($_POST, 'grant_type') ? $_POST['grant_type'] : '');
+				$redirect_uri = (x($_POST, 'redirect_uri') ? $_POST['redirect_uri'] : '');
+				$client_id = (x($_POST, 'client_id') ? $_POST['client_id'] : '');
+				$code = (x($_POST, 'code') ? $_POST['code'] : '');
+				$client_secret = (x($_POST, 'client_secret') ? $_POST['client_secret'] : '');
+				$url = z_root() . '/token/';
+				$params = http_build_query(array(
+					'grant_type' => $grant_type,
+					'redirect_uri' => urlencode($redirect_uri),
+					'client_id' => $client_id,
+					'code' => $code,
+				));
+				$post = z_post_url($url, $params, 0, array(
+					'http_auth' => $client_id . ':' . $client_secret,
+				));
+				logger(json_encode($post, JSON_PRETTY_PRINT), LOGGER_DEBUG);
+				$response = json_decode($post['body'], true);
+				logger(json_encode($response, JSON_PRETTY_PRINT), LOGGER_DEBUG);
+				if($response['access_token']) {
+					info('Access token received: ' . $response['access_token'] . EOL);
+					$_SESSION['success'] = 'request_token';
+					$_SESSION['access_token'] = $response['access_token'];
+				}
+				break;
+			case 'delete_db':
+				$status = true;
+				// Use the \OAuth2\Storage\Pdo class to create the OAuth2 tables
+				// by passing it the database connection 
+				$pdo = \DBA::$dba->db;
+				$storage = new \Zotlabs\Storage\ZotOauth2Pdo($pdo);
+				foreach ($storage->getConfig() as $key => $table) {
+					$r = q("DROP TABLE %s;", dbesc($table));
+					if (!$r) {
+						$status = false;
+					}
+				}
+				if (!$status) {
+					notice('Errors encountered deleting database tables.' . EOL);
+					$_SESSION['success'] = '';
+				} else {
+					info('Database tables deleted successfully.' . EOL);
+					$_SESSION['success'] = 'delete_db';
+				}
+				break;
+
+			case 'create_db':
+				$status = true;
+				@include('.htconfig.php');
+				$pdo = \DBA::$dba->db;
+				$storage = new \Zotlabs\Storage\ZotOauth2Pdo($pdo);
+				foreach (explode(';', $storage->getBuildSql($db_data)) as $statement) {
+					try {
+						$result = $pdo->exec($statement);
+					} catch (\PDOException $e) {
+						$status = false;
+					}
+				}
+
+				if (!$status) {
+					notice('Errors encountered creating database tables.' . EOL);
+					$_SESSION['success'] = '';
+				} else {
+					info('Database tables created successfully.' . EOL);
+					$_SESSION['success'] = 'create_db';
+				}
+				break;
+
+			default:
+				break;
+		}
+	}
+
+}
diff --git a/Zotlabs/Module/Token.php b/Zotlabs/Module/Token.php
index f7c074233..32cf95c61 100644
--- a/Zotlabs/Module/Token.php
+++ b/Zotlabs/Module/Token.php
@@ -29,7 +29,8 @@ class Token extends \Zotlabs\Web\Controller {
 		}
 
 		$s = new \Zotlabs\Identity\OAuth2Server(new OAuth2Storage(\DBA::$dba->db));
-		$s->handleTokenRequest(\OAuth2\Request::createFromGlobals())->send();
+		$request = \OAuth2\Request::createFromGlobals();
+		$s->handleTokenRequest($request)->send();
 
 		killme();
 	}