From fa81a580bb9eea76e7739f37010b35e4b919f410 Mon Sep 17 00:00:00 2001
From: Zach Copley <zach@status.net>
Date: Thu, 7 Jan 2010 18:33:17 -0800
Subject: [PATCH] Action for issuing a request token

---
 actions/apioauthrequesttoken.php | 41 ++++++++++++++-
 lib/apioauthstore.php            | 90 ++++++++++++++++++++++++++++++++
 2 files changed, 130 insertions(+), 1 deletion(-)
 create mode 100644 lib/apioauthstore.php

diff --git a/actions/apioauthrequesttoken.php b/actions/apioauthrequesttoken.php
index c1ccd4b7d7..1bbd7d295b 100644
--- a/actions/apioauthrequesttoken.php
+++ b/actions/apioauthrequesttoken.php
@@ -32,6 +32,7 @@ if (!defined('STATUSNET')) {
 }
 
 require_once INSTALLDIR . '/lib/api.php';
+require_once INSTALLDIR . '/lib/apioauthstore.php';
 
 /**
  * Get an OAuth request token
@@ -43,7 +44,45 @@ require_once INSTALLDIR . '/lib/api.php';
  * @link     http://status.net/
  */
 
-class ApiOauthRequestTokenAction extends ApiAction
+class ApiOauthRequestTokenAction extends Action
 {
+    /**
+     * Is read only?
+     *
+     * @return boolean false
+     */
+    function isReadOnly()
+    {
+        return false;
+    }
+
+    /**
+     * Class handler.
+     *
+     * @param array $args array of arguments
+     *
+     * @return void
+     */
+    function handle($args)
+    {
+        parent::handle($args);
+
+        $datastore   = new ApiStatusNetOAuthDataStore();
+        $server      = new OAuthServer($datastore);
+        $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
+        $server->add_signature_method($hmac_method);
+
+        try {
+            $req   = OAuthRequest::from_request();
+            $token = $server->fetch_request_token($req);
+            print $token;
+        } catch (OAuthException $e) {
+            common_log(LOG_WARN, $e->getMessage());
+            common_debug(var_export($req, true));
+            header('HTTP/1.1 401 Unauthorized');
+            header('Content-Type: text/html; charset=utf-8');
+            print $e->getMessage() . "\n";
+        }
+    }
 
 }
diff --git a/lib/apioauthstore.php b/lib/apioauthstore.php
new file mode 100644
index 0000000000..a92a4d6e49
--- /dev/null
+++ b/lib/apioauthstore.php
@@ -0,0 +1,90 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
+
+require_once INSTALLDIR . '/lib/oauthstore.php';
+
+class ApiStatusNetOAuthDataStore extends StatusNetOAuthDataStore
+{
+
+    function lookup_consumer($consumer_key)
+    {
+        $con = Consumer::staticGet('consumer_key', $consumer_key);
+
+        if (!$con) {
+            return null;
+        }
+
+        return new OAuthConsumer($con->consumer_key,
+                                 $con->consumer_secret);
+    }
+
+    function new_access_token($token, $consumer)
+    {
+        common_debug('new_access_token("'.$token->key.'","'.$consumer->key.'")', __FILE__);
+        $rt = new Token();
+        $rt->consumer_key = $consumer->key;
+        $rt->tok = $token->key;
+        $rt->type = 0; // request
+        if ($rt->find(true) && $rt->state == 1) { // authorized
+            common_debug('request token found.', __FILE__);
+            $at = new Token();
+            $at->consumer_key = $consumer->key;
+            $at->tok = common_good_rand(16);
+            $at->secret = common_good_rand(16);
+            $at->type = 1; // access
+            $at->created = DB_DataObject_Cast::dateTime();
+            if (!$at->insert()) {
+                $e = $at->_lastError;
+                common_debug('access token "'.$at->tok.'" not inserted: "'.$e->message.'"', __FILE__);
+                return null;
+            } else {
+                common_debug('access token "'.$at->tok.'" inserted', __FILE__);
+                // burn the old one
+                $orig_rt = clone($rt);
+                $rt->state = 2; // used
+                if (!$rt->update($orig_rt)) {
+                    return null;
+                }
+                common_debug('request token "'.$rt->tok.'" updated', __FILE__);
+                // Update subscription
+                // XXX: mixing levels here
+                $sub = Subscription::staticGet('token', $rt->tok);
+                if (!$sub) {
+                    return null;
+                }
+                common_debug('subscription for request token found', __FILE__);
+                $orig_sub = clone($sub);
+                $sub->token = $at->tok;
+                $sub->secret = $at->secret;
+                if (!$sub->update($orig_sub)) {
+                    return null;
+                } else {
+                    common_debug('subscription updated to use access token', __FILE__);
+                    return new OAuthToken($at->tok, $at->secret);
+                }
+            }
+        } else {
+            return null;
+        }
+    }
+
+}
+