Merge remote branch 'gitorious/0.9.x' into 0.9.x

36 files changed, 2185 insertions, 923 deletions

diff --git a/actions/apioauthaccesstoken.php b/actions/apioauthaccesstoken.php
index 887df4c20..663a7a2bb 100644
--- a/actions/apioauthaccesstoken.php
+++ b/actions/apioauthaccesstoken.php
@@ -2,7 +2,8 @@
 /**
  * StatusNet, the distributed open-source microblogging tool
  *
- * Exchange an authorized OAuth request token for an access token
+ * Action for getting OAuth token credentials (exchange an authorized
+ * request token for an access token)
  *
  * PHP version 5
  *
@@ -34,7 +35,8 @@ if (!defined('STATUSNET')) {
 require_once INSTALLDIR . '/lib/apioauth.php';
 
 /**
- * Exchange an authorized OAuth request token for an access token
+ * Action for getting OAuth token credentials (exchange an authorized
+ * request token for an access token)
  *
  * @category API
  * @package  StatusNet
@@ -45,6 +47,8 @@ require_once INSTALLDIR . '/lib/apioauth.php';
 
 class ApiOauthAccessTokenAction extends ApiOauthAction
 {
+    protected $reqToken = null;
+    protected $verifier = null;
 
     /**
      * Class handler.
@@ -65,30 +69,58 @@ class ApiOauthAccessTokenAction extends ApiOauthAction
 
         $atok = null;
 
+        // XXX: Insist that oauth_token and oauth_verifier be populated?
+        // Spec doesn't say they MUST be.
+
         try {
+
             $req  = OAuthRequest::from_request();
+
+            $this->reqToken = $req->get_parameter('oauth_token');
+            $this->verifier = $req->get_parameter('oauth_verifier');
+
             $atok = $server->fetch_access_token($req);
 
         } catch (OAuthException $e) {
             common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
             common_debug(var_export($req, true));
-            $this->outputError($e->getMessage());
-            return;
+            $code = $e->getCode();
+            $this->clientError($e->getMessage(), empty($code) ? 401 : $code, 'text');
         }
 
         if (empty($atok)) {
-            common_debug('couldn\'t get access token.');
-            print "Token exchange failed. Has the request token been authorized?\n";
+
+            // Token exchange failed -- log it
+
+            list($proxy, $ip) = common_client_ip();
+
+            $msg = sprintf(
+                'API OAuth - Failure exchanging request token for access token, '
+                    . 'request token = %s, verifier = %s, IP = %s, proxy = %s',
+                $this->reqToken,
+                $this->verifier,
+                $ip,
+                $proxy
+            );
+
+            common_log(LOG_WARNING, $msg);
+
+            $this->clientError(_("Invalid request token or verifier.", 400, 'text'));
+
         } else {
-            print $atok;
+            $this->showAccessToken($atok);
         }
     }
 
-    function outputError($msg)
+    /*
+     * Display OAuth token credentials
+     *
+     * @param OAuthToken token the access token
+     */
+
+    function showAccessToken($token)
     {
-        header('HTTP/1.1 401 Unauthorized');
-        header('Content-Type: text/html; charset=utf-8');
-        print $msg . "\n";
+        header('Content-Type: application/x-www-form-urlencoded');
+        print $token;
     }
 }
-
diff --git a/actions/apioauthauthorize.php b/actions/apioauthauthorize.php
index c2fbbcdd8..ea5c30c2a 100644
--- a/actions/apioauthauthorize.php
+++ b/actions/apioauthauthorize.php
@@ -32,6 +32,7 @@ if (!defined('STATUSNET')) {
 }
 
 require_once INSTALLDIR . '/lib/apioauth.php';
+require_once INSTALLDIR . '/lib/info.php';
 
 /**
  * Authorize an OAuth request token
@@ -43,9 +44,10 @@ require_once INSTALLDIR . '/lib/apioauth.php';
  * @link     http://status.net/
  */
 
-class ApiOauthAuthorizeAction extends ApiOauthAction
+class ApiOauthAuthorizeAction extends Action
 {
-    var $oauth_token;
+    var $oauthTokenParam;
+    var $reqToken;
     var $callback;
     var $app;
     var $nickname;
@@ -67,12 +69,17 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
     {
         parent::prepare($args);
 
-        $this->nickname    = $this->trimmed('nickname');
-        $this->password    = $this->arg('password');
-        $this->oauth_token = $this->arg('oauth_token');
-        $this->callback    = $this->arg('oauth_callback');
-        $this->store       = new ApiStatusNetOAuthDataStore();
-        $this->app         = $this->store->getAppByRequestToken($this->oauth_token);
+        $this->nickname         = $this->trimmed('nickname');
+        $this->password         = $this->arg('password');
+        $this->oauthTokenParam  = $this->arg('oauth_token');
+        $this->callback         = $this->arg('oauth_callback');
+        $this->store            = new ApiStatusNetOAuthDataStore();
+
+        try {
+            $this->app = $this->store->getAppByRequestToken($this->oauthTokenParam);
+        } catch (Exception $e) {
+            $this->clientError($e->getMessage());
+        }
 
         return true;
     }
@@ -97,14 +104,30 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
 
         } else {
 
-            if (empty($this->oauth_token)) {
+            // Make sure a oauth_token parameter was provided
+            if (empty($this->oauthTokenParam)) {
                 $this->clientError(_('No oauth_token parameter provided.'));
-                return;
+            } else {
+
+                // Check to make sure the token exists
+                $this->reqToken = $this->store->getTokenByKey($this->oauthTokenParam);
+
+                if (empty($this->reqToken)) {
+                    $this->serverError(
+                        _('Invalid request token.')
+                    );
+                } else {
+
+                    // Check to make sure we haven't already authorized the token
+                    if ($this->reqToken->state != 0) {
+                        $this->clientError("Invalid request token.");
+                    }
+                }
             }
 
+            // make sure there's an app associated with this token
             if (empty($this->app)) {
-                $this->clientError(_('Invalid token.'));
-                return;
+                $this->clientError(_('Invalid request token.'));
             }
 
             $name = $this->app->name;
@@ -120,8 +143,8 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
         $token = $this->trimmed('token');
 
         if (!$token || $token != common_session_token()) {
-            $this->showForm(_('There was a problem with your session token. '.
-                              'Try again, please.'));
+            $this->showForm(
+                _('There was a problem with your session token. Try again, please.'));
             return;
         }
 
@@ -130,6 +153,11 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
         $user = null;
 
         if (!common_logged_in()) {
+
+            // XXX Force credentials check?
+
+            // XXX OpenID
+
             $user = common_check_user($this->nickname, $this->password);
             if (empty($user)) {
                 $this->showForm(_("Invalid nickname / password!"));
@@ -141,9 +169,15 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
 
         if ($this->arg('allow')) {
 
-            // mark the req token as authorized
+            // fetch the token
+            $this->reqToken = $this->store->getTokenByKey($this->oauthTokenParam);
 
-            $this->store->authorize_token($this->oauth_token);
+            // mark the req token as authorized
+            try {
+                $this->store->authorize_token($this->oauthTokenParam);
+            } catch (Exception $e) {
+                $this->serverError($e->getMessage());
+            }
 
             // Check to see if there was a previous token associated
             // with this user/app and kill it. If the user is doing this she
@@ -156,8 +190,7 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
 
                 if (!$result) {
                     common_log_db_error($appUser, 'DELETE', __FILE__);
-                    throw new ServerException(_('Database error deleting OAuth application user.'));
-                    return;
+                    $this->serverError(_('Database error deleting OAuth application user.'));
                 }
             }
 
@@ -175,20 +208,19 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
             // granted.  The OAuth app user record then gets updated
             // with the new access token and access type.
 
-            $appUser->token          = $this->oauth_token;
+            $appUser->token          = $this->oauthTokenParam;
             $appUser->created        = common_sql_now();
 
             $result = $appUser->insert();
 
             if (!$result) {
                 common_log_db_error($appUser, 'INSERT', __FILE__);
-                throw new ServerException(_('Database error inserting OAuth application user.'));
-                return;
+                $this->serverError(_('Database error inserting OAuth application user.'));
             }
 
-            // if we have a callback redirect and provide the token
+            // If we have a callback redirect and provide the token
 
-            // A callback specified in the app setup overrides whatever
+            // Note: A callback specified in the app setup overrides whatever
             // is passed in with the request.
 
             if (!empty($this->app->callback_url)) {
@@ -197,40 +229,40 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
 
             if (!empty($this->callback)) {
 
-                $target_url = $this->getCallback($this->callback,
-                                                 array('oauth_token' => $this->oauth_token));
+                $targetUrl = $this->getCallback(
+                    $this->callback,
+                    array(
+                        'oauth_token'    => $this->oauthTokenParam,
+                        'oauth_verifier' => $this->reqToken->verifier // 1.0a
+                    )
+                );
+
+                // Redirect the user to the provided OAuth callback
+                common_redirect($targetUrl, 303);
 
-                common_redirect($target_url, 303);
             } else {
-                common_debug("callback was empty!");
+                common_log(
+                    LOG_INFO,
+                    "No oauth_callback parameter provided for application ID "
+                    . $this->app->id
+                    . " when authorizing request token."
+                );
             }
 
-            // otherwise inform the user that the rt was authorized
-
-            $this->elementStart('p');
-
-            // XXX: Do OAuth 1.0a verifier code
-
-            $this->raw(sprintf(_("The request token %s has been authorized. " .
-                                 'Please exchange it for an access token.'),
-                               $this->oauth_token));
-
-            $this->elementEnd('p');
-
-        } else if ($this->arg('deny')) {
-
-            $datastore = new ApiStatusNetOAuthDataStore();
-            $datastore->revoke_token($this->oauth_token, 0);
+            // Otherwise, inform the user that the rt was authorized
+            $this->showAuthorized();
 
-            $this->elementStart('p');
+        } else if ($this->arg('cancel')) {
 
-            $this->raw(sprintf(_("The request token %s has been denied and revoked."),
-                               $this->oauth_token));
+            try {
+                $this->store->revoke_token($this->oauthTokenParam, 0);
+                $this->showCanceled();
+            } catch (Exception $e) {
+                $this->ServerError($e->getMessage());
+            }
 
-            $this->elementEnd('p');
         } else {
             $this->clientError(_('Unexpected form submission.'));
-            return;
         }
     }
 
@@ -276,7 +308,7 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
                                  _('Allow or deny access'));
 
         $this->hidden('token', common_session_token());
-        $this->hidden('oauth_token', $this->oauth_token);
+        $this->hidden('oauth_token', $this->oauthTokenParam);
         $this->hidden('oauth_callback', $this->callback);
 
         $this->elementStart('ul', 'form_data');
@@ -321,11 +353,11 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
 
         }
 
-        $this->element('input', array('id' => 'deny_submit',
+        $this->element('input', array('id' => 'cancel_submit',
                                       'class' => 'submit submit form_action-primary',
-                                      'name' => 'deny',
+                                      'name' => 'cancel',
                                       'type' => 'submit',
-                                      'value' => _('Deny')));
+                                      'value' => _('Cancel')));
 
         $this->element('input', array('id' => 'allow_submit',
                                       'class' => 'submit submit form_action-secondary',
@@ -348,7 +380,7 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
 
     function getInstructions()
     {
-        return _('Allow or deny access to your account information.');
+        return _('Authorize access to your account information.');
     }
 
     /**
@@ -388,4 +420,107 @@ class ApiOauthAuthorizeAction extends ApiOauthAction
         // NOP
     }
 
+    /*
+     * Show a nice message confirming the authorization
+     * operation was canceled.
+     *
+     * @return nothing
+     */
+
+    function showCanceled()
+    {
+        $info = new InfoAction(
+            _('Authorization canceled.'),
+            sprintf(
+                _('The request token %s has been revoked.'),
+                $this->oauthTokenParm
+            )
+        );
+
+        $info->showPage();
+    }
+
+    /*
+     * Show a nice message that the authorization was successful.
+     * If the operation is out-of-band, show a pin.
+     *
+     * @return nothing
+     */
+
+    function showAuthorized()
+    {
+        $title = sprintf(
+            _("You have successfully authorized %s."),
+            $this->app->name
+        );
+
+        $msg = sprintf(
+            _('Please return to %s and enter the following security code to complete the process.'),
+            $this->app->name
+        );
+
+        if ($this->reqToken->verified_callback == 'oob') {
+            $pin = new ApiOauthPinAction($title, $msg, $this->reqToken->verifier);
+            $pin->showPage();
+        } else {
+
+            // NOTE: This would only happen if an application registered as
+            // a web application but sent in 'oob' for the oauth_callback
+            // parameter. Usually web apps will send in a callback and
+            // not use the pin-based workflow.
+
+            $info = new InfoAction(
+                $title,
+                $msg,
+                $this->oauthTokenParam,
+                $this->reqToken->verifier
+            );
+
+            $info->showPage();
+        }
+    }
+
+    /*
+     * Properly format the callback URL and parameters so it's
+     * suitable for a redirect in the OAuth dance
+     *
+     * @param string $url       the URL
+     * @param array  $params    an array of parameters
+     *
+     * @return string $url  a URL to use for redirecting to
+     */
+
+    function getCallback($url, $params)
+    {
+        foreach ($params as $k => $v) {
+            $url = $this->appendQueryVar(
+                $url,
+                OAuthUtil::urlencode_rfc3986($k),
+                OAuthUtil::urlencode_rfc3986($v)
+            );
+        }
+
+        return $url;
+    }
+
+    /*
+     * Append a new query parameter after any existing query
+     * parameters.
+     *
+     * @param string $url   the URL
+     * @prarm string $k     the parameter name
+     * @param string $v     value of the paramter
+     *
+     * @return string $url  the new URL with added parameter
+     */
+
+    function appendQueryVar($url, $k, $v) {
+        $url = preg_replace('/(.*)(\?|&)' . $k . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&');
+        $url = substr($url, 0, -1);
+        if (strpos($url, '?') === false) {
+            return ($url . '?' . $k . '=' . $v);
+        } else {
+            return ($url . '&' . $k . '=' . $v);
+        }
+    }
 }
diff --git a/actions/apioauthpin.php b/actions/apioauthpin.php
new file mode 100644
index 000000000..5e6713a54
--- /dev/null
+++ b/actions/apioauthpin.php
@@ -0,0 +1,67 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Action for displaying an OAuth verifier pin
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @author    Zach Copley <zach@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+require_once INSTALLDIR . '/lib/info.php';
+
+/**
+ * Class for displaying an OAuth verifier pin
+ *
+ * XXX: I'm pretty sure we don't need to check the logged in state here. -- Zach
+ *
+ * @category Action
+ * @package  StatusNet
+ * @author   Zach Copley <zach@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://status.net/
+ */
+
+class ApiOauthPinAction extends InfoAction
+{
+    function __construct($title, $message, $verifier)
+    {
+        $this->verifier = $verifier;
+        $this->title    = $title;
+        parent::__construct($title, $message);
+    }
+
+    /**
+     * Display content.
+     *
+     * @return nothing
+     */
+    function showContent()
+    {
+        $this->element('div', array('class' => 'info'), $this->message);
+        $this->element('div', array('id' => 'oauth_pin'), $this->verifier);
+    }
+}
diff --git a/actions/apioauthrequesttoken.php b/actions/apioauthrequesttoken.php
index 4fa626d86..478d2dbfc 100644
--- a/actions/apioauthrequesttoken.php
+++ b/actions/apioauthrequesttoken.php
@@ -2,7 +2,7 @@
 /**
  * StatusNet, the distributed open-source microblogging tool
  *
- * Get an OAuth request token
+ * Issue temporary OAuth credentials (a request token)
  *
  * PHP version 5
  *
@@ -34,7 +34,7 @@ if (!defined('STATUSNET')) {
 require_once INSTALLDIR . '/lib/apioauth.php';
 
 /**
- * Get an OAuth request token
+ * Issue temporary OAuth credentials (a request token)
  *
  * @category API
  * @package  StatusNet
@@ -58,22 +58,23 @@ class ApiOauthRequestTokenAction extends ApiOauthAction
     {
         parent::prepare($args);
 
-        $this->callback  = $this->arg('oauth_callback');
-
-        if (!empty($this->callback)) {
-            common_debug("callback: $this->callback");
-        }
+        // XXX: support "force_login" parameter like Twitter? (Forces the user to enter
+        // their credentials to ensure the correct users account is authorized.)
 
         return true;
     }
 
     /**
-     * Class handler.
+     * Handle a request for temporary OAuth credentials
+     *
+     * Make sure the request is kosher, then emit a set of temporary
+     * credentials -- AKA an unauthorized request token.
      *
      * @param array $args array of arguments
      *
      * @return void
      */
+
     function handle($args)
     {
         parent::handle($args);
@@ -85,14 +86,78 @@ class ApiOauthRequestTokenAction extends ApiOauthAction
         $server->add_signature_method($hmac_method);
 
         try {
-            $req   = OAuthRequest::from_request();
+
+            $req = OAuthRequest::from_request();
+
+            // verify callback
+            if (!$this->verifyCallback($req->get_parameter('oauth_callback'))) {
+                throw new OAuthException(
+                    "You must provide a valid URL or 'oob' in oauth_callback.",
+                    400
+                );
+            }
+
+            // check signature and issue a new request token
             $token = $server->fetch_request_token($req);
-            print $token;
+
+            common_log(
+                LOG_INFO,
+                sprintf(
+                    "API OAuth - Issued request token %s for consumer %s with oauth_callback %s",
+                    $token->key,
+                    $req->get_parameter('oauth_consumer_key'),
+                    "'" . $req->get_parameter('oauth_callback') ."'"
+                )
+            );
+
+            // return token to the client
+            $this->showRequestToken($token);
+
         } catch (OAuthException $e) {
             common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
-            header('HTTP/1.1 401 Unauthorized');
-            header('Content-Type: text/html; charset=utf-8');
-            print $e->getMessage() . "\n";
+
+            // Return 401 for for bad credentials or signature problems,
+            // and 400 for missing or unsupported parameters
+
+            $code = $e->getCode();
+            $this->clientError($e->getMessage(), empty($code) ? 401 : $code, 'text');
+        }
+    }
+
+    /*
+     * Display temporary OAuth credentials
+     */
+
+    function showRequestToken($token)
+    {
+        header('Content-Type: application/x-www-form-urlencoded');
+        print $token;
+        print '&oauth_callback_confirmed=true';
+    }
+
+    /* Make sure the callback parameter contains either a real URL
+     * or the string 'oob'.
+     *
+     * @todo Check for evil/banned URLs here
+     *
+     * @return boolean true or false
+     */
+
+    function verifyCallback($callback)
+    {
+        if ($callback == "oob") {
+            common_debug("OAuth request token requested for out of bounds client.");
+
+            // XXX: Should we throw an error if a client is registered as a
+            // web application but requests the pin based workflow? For now I'm
+            // allowing the workflow to proceed and issuing a pin. --Zach
+
+            return true;
+        } else {
+            return Validate::uri(
+                $callback,
+                array('allowed_schemes' => array('http', 'https'))
+            );
         }
     }
 
diff --git a/actions/deletegroup.php b/actions/deletegroup.php
new file mode 100644
index 000000000..acb309e1d
--- /dev/null
+++ b/actions/deletegroup.php
@@ -0,0 +1,226 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Delete a group
+ *
+ * PHP version 5
+ *
+ * LICENCE: 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/>.
+ *
+ * @category  Group
+ * @package   StatusNet
+ * @author    Evan Prodromou <evan@status.net>
+ * @author    Brion Vibber <brion@status.net>
+ * @copyright 2008-2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+/**
+ * Delete a group
+ *
+ * This is the action for deleting a group.
+ *
+ * @category Group
+ * @package  StatusNet
+ * @author   Evan Prodromou <evan@status.net>
+ * @author   Brion Vibber <brion@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://status.net/
+ * @fixme merge more of this code with related variants
+ */
+
+class DeletegroupAction extends RedirectingAction
+{
+    var $group = null;
+
+    /**
+     * Prepare to run
+     *
+     * @fixme merge common setup code with other group actions
+     * @fixme allow group admins to delete their own groups
+     */
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+
+        if (!common_logged_in()) {
+            $this->clientError(_('You must be logged in to delete a group.'));
+            return false;
+        }
+
+        $nickname_arg = $this->trimmed('nickname');
+        $id = intval($this->arg('id'));
+        if ($id) {
+            $this->group = User_group::staticGet('id', $id);
+        } else if ($nickname_arg) {
+            $nickname = common_canonical_nickname($nickname_arg);
+
+            // Permanent redirect on non-canonical nickname
+
+            if ($nickname_arg != $nickname) {
+                $args = array('nickname' => $nickname);
+                common_redirect(common_local_url('leavegroup', $args), 301);
+                return false;
+            }
+
+            $local = Local_group::staticGet('nickname', $nickname);
+
+            if (!$local) {
+                $this->clientError(_('No such group.'), 404);
+                return false;
+            }
+
+            $this->group = User_group::staticGet('id', $local->group_id);
+        } else {
+            $this->clientError(_('No nickname or ID.'), 404);
+            return false;
+        }
+
+        if (!$this->group) {
+            $this->clientError(_('No such group.'), 404);
+            return false;
+        }
+
+        $cur = common_current_user();
+        if (!$cur->hasRight(Right::DELETEGROUP)) {
+            $this->clientError(_('You are not allowed to delete this group.'), 403);
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Handle the request
+     *
+     * On POST, delete the group.
+     *
+     * @param array $args unused
+     *
+     * @return void
+     */
+
+    function handle($args)
+    {
+        parent::handle($args);
+        if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+            if ($this->arg('no')) {
+                $this->returnToPrevious();
+                return;
+            } elseif ($this->arg('yes')) {
+                $this->handlePost();
+                return;
+            }
+        }
+        $this->showPage();
+    }
+
+    function handlePost()
+    {
+        $cur = common_current_user();
+
+        try {
+            if (Event::handle('StartDeleteGroup', array($this->group))) {
+                $this->group->delete();
+                Event::handle('EndDeleteGroup', array($this->group));
+            }
+        } catch (Exception $e) {
+            $this->serverError(sprintf(_('Could not delete group %2$s.'),
+                                       $this->group->nickname));
+        }
+
+        if ($this->boolean('ajax')) {
+            $this->startHTML('text/xml;charset=utf-8');
+            $this->elementStart('head');
+            $this->element('title', null, sprintf(_('Deleted group %2$s'),
+                                                  $this->group->nickname));
+            $this->elementEnd('head');
+            $this->elementStart('body');
+            // @fixme add a sensible AJAX response form!
+            $this->elementEnd('body');
+            $this->elementEnd('html');
+        } else {
+            // @fixme if we could direct to the page on which this group
+            // would have shown... that would be awesome
+            common_redirect(common_local_url('groups'),
+                            303);
+        }
+    }
+
+    function title() {
+        return _('Delete group');
+    }
+
+    function showContent() {
+        $this->areYouSureForm();
+    }
+
+    /**
+     * Confirm with user.
+     * Ripped from DeleteuserAction
+     *
+     * Shows a confirmation form.
+     *
+     * @fixme refactor common code for things like this
+     * @return void
+     */
+    function areYouSureForm()
+    {
+        $id = $this->group->id;
+        $this->elementStart('form', array('id' => 'deletegroup-' . $id,
+                                           'method' => 'post',
+                                           'class' => 'form_settings form_entity_block',
+                                           'action' => common_local_url('deletegroup', array('id' => $this->group->id))));
+        $this->elementStart('fieldset');
+        $this->hidden('token', common_session_token());
+        $this->element('legend', _('Delete group'));
+        if (Event::handle('StartDeleteGroupForm', array($this, $this->group))) {
+            $this->element('p', null,
+                           _('Are you sure you want to delete this group? '.
+                             'This will clear all data about the group from the '.
+                             'database, without a backup. ' .
+                             'Public posts to this group will still appear in ' .
+                             'individual timelines.'));
+            foreach ($this->args as $k => $v) {
+                if (substr($k, 0, 9) == 'returnto-') {
+                    $this->hidden($k, $v);
+                }
+            }
+            Event::handle('EndDeleteGroupForm', array($this, $this->group));
+        }
+        $this->submit('form_action-no',
+                      // TRANS: Button label on the delete group form.
+                      _m('BUTTON','No'),
+                      'submit form_action-primary',
+                      'no',
+                      // TRANS: Submit button title for 'No' when deleting a group.
+                      _('Do not delete this group'));
+        $this->submit('form_action-yes',
+                      // TRANS: Button label on the delete group form.
+                      _m('BUTTON','Yes'),
+                      'submit form_action-secondary',
+                      'yes',
+                      // TRANS: Submit button title for 'Yes' when deleting a group.
+                      _('Delete this group'));
+        $this->elementEnd('fieldset');
+        $this->elementEnd('form');
+    }
+}
\ No newline at end of file
diff --git a/actions/showgroup.php b/actions/showgroup.php
index 17c37e4d7..9a12bafaf 100644
--- a/actions/showgroup.php
+++ b/actions/showgroup.php
@@ -316,6 +316,12 @@ class ShowgroupAction extends GroupDesignAction
             Event::handle('EndGroupSubscribe', array($this, $this->group));
         }
         $this->elementEnd('li');
+        if ($cur->hasRight(Right::DELETEGROUP)) {
+            $this->elementStart('li', 'entity_delete');
+            $df = new DeleteGroupForm($this, $this->group);
+            $df->show();
+            $this->elementEnd('li');
+        }
         $this->elementEnd('ul');
         $this->elementEnd('div');
     }
diff --git a/classes/Profile.php b/classes/Profile.php
index 3844077e6..12ce5d9b6 100644
--- a/classes/Profile.php
+++ b/classes/Profile.php
@@ -854,6 +854,7 @@ class Profile extends Memcached_DataObject
             case Right::SANDBOXUSER:
             case Right::SILENCEUSER:
             case Right::DELETEUSER:
+            case Right::DELETEGROUP:
                 $result = $this->hasRole(Profile_role::MODERATOR);
                 break;
             case Right::CONFIGURESITE:
diff --git a/classes/User_group.php b/classes/User_group.php
index cfdcef290..1f7005785 100644
--- a/classes/User_group.php
+++ b/classes/User_group.php
@@ -547,4 +547,46 @@ class User_group extends Memcached_DataObject
         $group->query('COMMIT');
         return $group;
     }
+
+    /**
+     * Handle cascading deletion, on the model of notice and profile.
+     *
+     * This should handle freeing up cached entries for the group's
+     * id, nickname, URI, and aliases. There may be other areas that
+     * are not de-cached in the UI, including the sidebar lists on
+     * GroupsAction
+     */
+    function delete()
+    {
+        if ($this->id) {
+            // Safe to delete in bulk for now
+            $related = array('Group_inbox',
+                             'Group_block',
+                             'Group_member',
+                             'Related_group');
+            Event::handle('UserGroupDeleteRelated', array($this, &$related));
+            foreach ($related as $cls) {
+                $inst = new $cls();
+                $inst->group_id = $this->id;
+                $inst->delete();
+            }
+
+            // And related groups in the other direction...
+            $inst = new Related_group();
+            $inst->related_group_id = $this->id;
+            $inst->delete();
+
+            // Aliases and the local_group entry need to be cleared explicitly
+            // or we'll miss clearing some cache keys; that can make it hard
+            // to create a new group with one of those names or aliases.
+            $this->setAliases(array());
+            $local = Local_group::staticGet('group_id', $this->id);
+            if ($local) {
+                $local->delete();
+            }
+        } else {
+            common_log(LOG_WARN, "Ambiguous user_group->delete(); skipping related tables.");
+        }
+        parent::delete();
+    }
 }
diff --git a/extlib/OAuth.php b/extlib/OAuth.php
index 04984d5fa..e9c4bdfae 100644
--- a/extlib/OAuth.php
+++ b/extlib/OAuth.php
@@ -3,26 +3,26 @@
 
 /* Generic exception class
  */
-class OAuthException extends Exception {/*{{{*/
+class OAuthException extends Exception {
   // pass
-}/*}}}*/
+}
 
-class OAuthConsumer {/*{{{*/
+class OAuthConsumer {
   public $key;
   public $secret;
 
-  function __construct($key, $secret, $callback_url=NULL) {/*{{{*/
+  function __construct($key, $secret, $callback_url=NULL) {
     $this->key = $key;
     $this->secret = $secret;
     $this->callback_url = $callback_url;
-  }/*}}}*/
+  }
 
-  function __toString() {/*{{{*/
+  function __toString() {
     return "OAuthConsumer[key=$this->key,secret=$this->secret]";
-  }/*}}}*/
-}/*}}}*/
+  }
+}
 
-class OAuthToken {/*{{{*/
+class OAuthToken {
   // access tokens and request tokens
   public $key;
   public $secret;
@@ -31,56 +31,77 @@ class OAuthToken {/*{{{*/
    * key = the token
    * secret = the token secret
    */
-  function __construct($key, $secret) {/*{{{*/
+  function __construct($key, $secret) {
     $this->key = $key;
     $this->secret = $secret;
-  }/*}}}*/
+  }
 
   /**
    * generates the basic string serialization of a token that a server
    * would respond to request_token and access_token calls with
    */
-  function to_string() {/*{{{*/
-    return "oauth_token=" . OAuthUtil::urlencode_rfc3986($this->key) . 
-        "&oauth_token_secret=" . OAuthUtil::urlencode_rfc3986($this->secret);
-  }/*}}}*/
+  function to_string() {
+    return "oauth_token=" .
+           OAuthUtil::urlencode_rfc3986($this->key) .
+           "&oauth_token_secret=" .
+           OAuthUtil::urlencode_rfc3986($this->secret);
+  }
 
-  function __toString() {/*{{{*/
+  function __toString() {
     return $this->to_string();
-  }/*}}}*/
-}/*}}}*/
-
-class OAuthSignatureMethod {/*{{{*/
-  public function check_signature(&$request, $consumer, $token, $signature) {
-    $built = $this->build_signature($request, $consumer, $token);
-    return $built == $signature;
-
-    // Check for zero length, although unlikely here
-    if (strlen($built) == 0 || strlen($signature) == 0) {
-      return false;
-    }
-
-    if (strlen($built) != strlen($signature)) {
-      return false;
-    }
+  }
+}
 
-    $result = 0;
+/**
+ * A class for implementing a Signature Method
+ * See section 9 ("Signing Requests") in the spec
+ */
+abstract class OAuthSignatureMethod {
+  /**
+   * Needs to return the name of the Signature Method (ie HMAC-SHA1)
+   * @return string
+   */
+  abstract public function get_name();
 
-    // Avoid a timing leak with a (hopefully) time insensitive compare
-    for ($i = 0; $i < strlen($signature); $i++) {
-      $result |= ord($built{$i}) ^ ord($signature{$i});
-    }
+  /**
+   * Build up the signature
+   * NOTE: The output of this function MUST NOT be urlencoded.
+   * the encoding is handled in OAuthRequest when the final
+   * request is serialized
+   * @param OAuthRequest $request
+   * @param OAuthConsumer $consumer
+   * @param OAuthToken $token
+   * @return string
+   */
+  abstract public function build_signature($request, $consumer, $token);
 
-    return $result == 0;
+  /**
+   * Verifies that a given signature is correct
+   * @param OAuthRequest $request
+   * @param OAuthConsumer $consumer
+   * @param OAuthToken $token
+   * @param string $signature
+   * @return bool
+   */
+  public function check_signature($request, $consumer, $token, $signature) {
+    $built = $this->build_signature($request, $consumer, $token);
+    return $built == $signature;
   }
-}/*}}}*/
-
-class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {/*{{{*/
-  function get_name() {/*{{{*/
+}
+
+/**
+ * The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104] 
+ * where the Signature Base String is the text and the key is the concatenated values (each first 
+ * encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&' 
+ * character (ASCII code 38) even if empty.
+ *   - Chapter 9.2 ("HMAC-SHA1")
+ */
+class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
+  function get_name() {
     return "HMAC-SHA1";
-  }/*}}}*/
+  }
 
-  public function build_signature($request, $consumer, $token) {/*{{{*/
+  public function build_signature($request, $consumer, $token) {
     $base_string = $request->get_signature_base_string();
     $request->base_string = $base_string;
 
@@ -92,61 +113,74 @@ class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {/*{{{*/
     $key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
     $key = implode('&', $key_parts);
 
-    return base64_encode( hash_hmac('sha1', $base_string, $key, true));
-  }/*}}}*/
-}/*}}}*/
+    return base64_encode(hash_hmac('sha1', $base_string, $key, true));
+  }
+}
 
-class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {/*{{{*/
-  public function get_name() {/*{{{*/
+/**
+ * The PLAINTEXT method does not provide any security protection and SHOULD only be used 
+ * over a secure channel such as HTTPS. It does not use the Signature Base String.
+ *   - Chapter 9.4 ("PLAINTEXT")
+ */
+class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
+  public function get_name() {
     return "PLAINTEXT";
-  }/*}}}*/
+  }
 
-  public function build_signature($request, $consumer, $token) {/*{{{*/
-    $sig = array(
-      OAuthUtil::urlencode_rfc3986($consumer->secret)
+  /**
+   * oauth_signature is set to the concatenated encoded values of the Consumer Secret and 
+   * Token Secret, separated by a '&' character (ASCII code 38), even if either secret is 
+   * empty. The result MUST be encoded again.
+   *   - Chapter 9.4.1 ("Generating Signatures")
+   *
+   * Please note that the second encoding MUST NOT happen in the SignatureMethod, as
+   * OAuthRequest handles this!
+   */
+  public function build_signature($request, $consumer, $token) {
+    $key_parts = array(
+      $consumer->secret,
+      ($token) ? $token->secret : ""
     );
 
-    if ($token) {
-      array_push($sig, OAuthUtil::urlencode_rfc3986($token->secret));
-    } else {
-      array_push($sig, '');
-    }
-
-    $raw = implode("&", $sig);
-    // for debug purposes
-    $request->base_string = $raw;
-
-    return OAuthUtil::urlencode_rfc3986($raw);
-  }/*}}}*/
-}/*}}}*/
+    $key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
+    $key = implode('&', $key_parts);
+    $request->base_string = $key;
 
-class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {/*{{{*/
-  public function get_name() {/*{{{*/
+    return $key;
+  }
+}
+
+/**
+ * The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in 
+ * [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for 
+ * EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a 
+ * verified way to the Service Provider, in a manner which is beyond the scope of this 
+ * specification.
+ *   - Chapter 9.3 ("RSA-SHA1")
+ */
+abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
+  public function get_name() {
     return "RSA-SHA1";
-  }/*}}}*/
-
-  protected function fetch_public_cert(&$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 Exception("fetch_public_cert not implemented");
-  }/*}}}*/
-
-  protected function fetch_private_cert(&$request) {/*{{{*/
-    // not implemented yet, ideas are:
-    // (1) do a lookup in a table of trusted certs keyed off of consumer
-    //
-    // either way should return a string representation of the certificate
-    throw Exception("fetch_private_cert not implemented");
-  }/*}}}*/
-
-  public function build_signature(&$request, $consumer, $token) {/*{{{*/
+  }
+
+  // Up to the SP to implement this lookup of keys. Possible ideas are:
+  // (1) do a lookup in a table of trusted certs keyed off of consumer
+  // (2) fetch via http using a url provided by the requester
+  // (3) some sort of specific discovery code based on request
+  //
+  // Either way should return a string representation of the certificate
+  protected abstract function fetch_public_cert(&$request);
+
+  // Up to the SP to implement this lookup of keys. Possible 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
+  protected abstract function fetch_private_cert(&$request);
+
+  public function build_signature($request, $consumer, $token) {
     $base_string = $request->get_signature_base_string();
     $request->base_string = $base_string;
-  
+
     // Fetch the private key cert based on the request
     $cert = $this->fetch_private_cert($request);
 
@@ -154,19 +188,19 @@ class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {/*{{{*/
     $privatekeyid = openssl_get_privatekey($cert);
 
     // Sign using the key
-    $ok = openssl_sign($base_string, $signature, $privatekeyid);   
+    $ok = openssl_sign($base_string, $signature, $privatekeyid);
 
     // Release the key resource
     openssl_free_key($privatekeyid);
-  
+
     return base64_encode($signature);
-  } /*}}}*/
+  }
 
-  public function check_signature(&$request, $consumer, $token, $signature) {/*{{{*/
+  public function check_signature($request, $consumer, $token, $signature) {
     $decoded_sig = base64_decode($signature);
 
     $base_string = $request->get_signature_base_string();
-  
+
     // Fetch the public key cert based on the request
     $cert = $this->fetch_public_cert($request);
 
@@ -174,143 +208,145 @@ class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {/*{{{*/
     $publickeyid = openssl_get_publickey($cert);
 
     // Check the computed signature against the one passed in the query
-    $ok = openssl_verify($base_string, $decoded_sig, $publickeyid);   
+    $ok = openssl_verify($base_string, $decoded_sig, $publickeyid);
 
     // Release the key resource
     openssl_free_key($publickeyid);
-  
+
     return $ok == 1;
-  } /*}}}*/
-}/*}}}*/
+  }
+}
 
-class OAuthRequest {/*{{{*/
-  private $parameters;
-  private $http_method;
-  private $http_url;
+class OAuthRequest {
+  protected $parameters;
+  protected $http_method;
+  protected $http_url;
   // for debug purposes
   public $base_string;
   public static $version = '1.0';
+  public static $POST_INPUT = 'php://input';
 
-  function __construct($http_method, $http_url, $parameters=NULL) {/*{{{*/
-    @$parameters or $parameters = array();
+  function __construct($http_method, $http_url, $parameters=NULL) {
+    $parameters = ($parameters) ? $parameters : array();
+    $parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
     $this->parameters = $parameters;
     $this->http_method = $http_method;
     $this->http_url = $http_url;
-  }/*}}}*/
+  }
 
 
   /**
    * attempt to build up a request from what was passed to the server
    */
-  public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) {/*{{{*/
-    $scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on") ? 'http' : 'https';
-    @$http_url or $http_url = $scheme . '://' . $_SERVER['HTTP_HOST'] . ':' . $_SERVER['SERVER_PORT'] . $_SERVER['REQUEST_URI'];
-    @$http_method or $http_method = $_SERVER['REQUEST_METHOD'];
-    
-    $request_headers = OAuthRequest::get_headers();
+  public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) {
+    $scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on")
+              ? 'http'
+              : 'https';
+    $http_url = ($http_url) ? $http_url : $scheme .
+                              '://' . $_SERVER['HTTP_HOST'] .
+                              ':' .
+                              $_SERVER['SERVER_PORT'] .
+                              $_SERVER['REQUEST_URI'];
+    $http_method = ($http_method) ? $http_method : $_SERVER['REQUEST_METHOD'];
+
+    // We weren't handed any parameters, so let's find the ones relevant to
+    // this request.
+    // If you run XML-RPC or similar you should use this to provide your own
+    // parsed parameter-list
+    if (!$parameters) {
+      // Find request headers
+      $request_headers = OAuthUtil::get_headers();
+
+      // Parse the query-string to find GET parameters
+      $parameters = OAuthUtil::parse_parameters($_SERVER['QUERY_STRING']);
+
+      // It's a POST request of the proper content-type, so parse POST
+      // parameters and add those overriding any duplicates from GET
+      if ($http_method == "POST"
+          &&  isset($request_headers['Content-Type'])
+          && strstr($request_headers['Content-Type'],
+                     'application/x-www-form-urlencoded')
+          ) {
+        $post_data = OAuthUtil::parse_parameters(
+          file_get_contents(self::$POST_INPUT)
+        );
+        $parameters = array_merge($parameters, $post_data);
+      }
 
-    // let the library user override things however they'd like, if they know
-    // which parameters to use then go for it, for example XMLRPC might want to
-    // do this
-    if ($parameters) {
-      $req = new OAuthRequest($http_method, $http_url, $parameters);
-    } else {
-      // collect request parameters from query string (GET) and post-data (POST) if appropriate (note: POST vars have priority)
-      $req_parameters = $_GET;
-      if ($http_method == "POST" &&
-        ( @strstr($request_headers["Content-Type"], "application/x-www-form-urlencoded") || @strstr($_ENV["CONTENT_TYPE"], "application/x-www-form-urlencoded") )) {
-        $req_parameters = array_merge($req_parameters, $_POST);
+      // We have a Authorization-header with OAuth data. Parse the header
+      // and add those overriding any duplicates from GET or POST
+      if (isset($request_headers['Authorization']) && substr($request_headers['Authorization'], 0, 6) == 'OAuth ') {
+        $header_parameters = OAuthUtil::split_header(
+          $request_headers['Authorization']
+        );
+        $parameters = array_merge($parameters, $header_parameters);
       }
 
-      // next check for the auth header, we need to do some extra stuff
-      // if that is the case, namely suck in the parameters from GET or POST
-      // so that we can include them in the signature
-      if (@substr($request_headers['Authorization'], 0, 6) == "OAuth ") {
-        $header_parameters = OAuthRequest::split_header($request_headers['Authorization']);
-        $parameters = array_merge($req_parameters, $header_parameters);
-        $req = new OAuthRequest($http_method, $http_url, $parameters);
-      } else $req = new OAuthRequest($http_method, $http_url, $req_parameters);
     }
 
-    return $req;
-  }/*}}}*/
+    return new OAuthRequest($http_method, $http_url, $parameters);
+  }
 
   /**
    * pretty much a helper function to set up the request
    */
-  public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) {/*{{{*/
-    @$parameters or $parameters = array();
+  public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) {
+    $parameters = ($parameters) ?  $parameters : array();
     $defaults = array("oauth_version" => OAuthRequest::$version,
                       "oauth_nonce" => OAuthRequest::generate_nonce(),
                       "oauth_timestamp" => OAuthRequest::generate_timestamp(),
                       "oauth_consumer_key" => $consumer->key);
+    if ($token)
+      $defaults['oauth_token'] = $token->key;
+
     $parameters = array_merge($defaults, $parameters);
 
-    if ($token) {
-      $parameters['oauth_token'] = $token->key;
-    }
     return new OAuthRequest($http_method, $http_url, $parameters);
-  }/*}}}*/
+  }
 
-  public function set_parameter($name, $value) {/*{{{*/
-    $this->parameters[$name] = $value;
-  }/*}}}*/
+  public function set_parameter($name, $value, $allow_duplicates = true) {
+    if ($allow_duplicates && isset($this->parameters[$name])) {
+      // We have already added parameter(s) with this name, so add to the list
+      if (is_scalar($this->parameters[$name])) {
+        // This is the first duplicate, so transform scalar (string)
+        // into an array so we can add the duplicates
+        $this->parameters[$name] = array($this->parameters[$name]);
+      }
 
-  public function get_parameter($name) {/*{{{*/
+      $this->parameters[$name][] = $value;
+    } else {
+      $this->parameters[$name] = $value;
+    }
+  }
+
+  public function get_parameter($name) {
     return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
-  }/*}}}*/
+  }
 
-  public function get_parameters() {/*{{{*/
+  public function get_parameters() {
     return $this->parameters;
-  }/*}}}*/
+  }
+
+  public function unset_parameter($name) {
+    unset($this->parameters[$name]);
+  }
 
   /**
-   * Returns the normalized parameters of the request
-   * 
-   * This will be all (except oauth_signature) parameters,
-   * sorted first by key, and if duplicate keys, then by
-   * value.
-   *
-   * The returned string will be all the key=value pairs
-   * concated by &.
-   * 
+   * The request parameters, sorted and concatenated into a normalized string.
    * @return string
    */
-  public function get_signable_parameters() {/*{{{*/
+  public function get_signable_parameters() {
     // Grab all parameters
     $params = $this->parameters;
-		
+
     // Remove oauth_signature if present
+    // Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
     if (isset($params['oauth_signature'])) {
       unset($params['oauth_signature']);
     }
-		
-    // Urlencode both keys and values
-    $keys = OAuthUtil::urlencode_rfc3986(array_keys($params));
-    $values = OAuthUtil::urlencode_rfc3986(array_values($params));
-    $params = array_combine($keys, $values);
-
-    // Sort by keys (natsort)
-    uksort($params, 'strcmp');
 
-    // Generate key=value pairs
-    $pairs = array();
-    foreach ($params as $key=>$value ) {
-      if (is_array($value)) {
-        // If the value is an array, it's because there are multiple 
-        // with the same key, sort them, then add all the pairs
-        natsort($value);
-        foreach ($value as $v2) {
-          $pairs[] = $key . '=' . $v2;
-        }
-      } else {
-        $pairs[] = $key . '=' . $value;
-      }
-    }
-		
-    // Return the pairs, concated with &
-    return implode('&', $pairs);
-  }/*}}}*/
+    return OAuthUtil::build_http_query($params);
+  }
 
   /**
    * Returns the base string of this request
@@ -319,7 +355,7 @@ class OAuthRequest {/*{{{*/
    * and the parameters (normalized), each urlencoded
    * and the concated with &.
    */
-  public function get_signature_base_string() {/*{{{*/
+  public function get_signature_base_string() {
     $parts = array(
       $this->get_normalized_http_method(),
       $this->get_normalized_http_url(),
@@ -329,185 +365,141 @@ class OAuthRequest {/*{{{*/
     $parts = OAuthUtil::urlencode_rfc3986($parts);
 
     return implode('&', $parts);
-  }/*}}}*/
+  }
 
   /**
    * just uppercases the http method
    */
-  public function get_normalized_http_method() {/*{{{*/
+  public function get_normalized_http_method() {
     return strtoupper($this->http_method);
-  }/*}}}*/
+  }
 
   /**
    * parses the url and rebuilds it to be
    * scheme://host/path
    */
-  public function get_normalized_http_url() {/*{{{*/
+  public function get_normalized_http_url() {
     $parts = parse_url($this->http_url);
 
-    $port = isset($parts['port']) ? $parts['port'] : null;
-    $scheme = $parts['scheme'];
-    $host = $parts['host'];
-    $path = @$parts['path'];
-
-    $port or $port = ($scheme == 'https') ? '443' : '80';
+    $scheme = (isset($parts['scheme'])) ? $parts['scheme'] : 'http';
+    $port = (isset($parts['port'])) ? $parts['port'] : (($scheme == 'https') ? '443' : '80');
+    $host = (isset($parts['host'])) ? $parts['host'] : '';
+    $path = (isset($parts['path'])) ? $parts['path'] : '';
 
     if (($scheme == 'https' && $port != '443')
         || ($scheme == 'http' && $port != '80')) {
       $host = "$host:$port";
     }
     return "$scheme://$host$path";
-  }/*}}}*/
+  }
 
   /**
    * builds a url usable for a GET request
    */
-  public function to_url() {/*{{{*/
-    $out = $this->get_normalized_http_url() . "?";
-    $out .= $this->to_postdata();
+  public function to_url() {
+    $post_data = $this->to_postdata();
+    $out = $this->get_normalized_http_url();
+    if ($post_data) {
+      $out .= '?'.$post_data;
+    }
     return $out;
-  }/*}}}*/
+  }
 
   /**
    * builds the data one would send in a POST request
-   *
-   * TODO(morten.fangel):
-   * this function might be easily replaced with http_build_query()
-   * and corrections for rfc3986 compatibility.. but not sure
    */
-  public function to_postdata() {/*{{{*/
-    $total = array();
-    foreach ($this->parameters as $k => $v) {
-      if (is_array($v)) {
-        foreach ($v as $va) {
-          $total[] = OAuthUtil::urlencode_rfc3986($k) . "[]=" . OAuthUtil::urlencode_rfc3986($va);
-        }
-      } else {
-        $total[] = OAuthUtil::urlencode_rfc3986($k) . "=" . OAuthUtil::urlencode_rfc3986($v);
-      }
-    }
-    $out = implode("&", $total);
-    return $out;
-  }/*}}}*/
+  public function to_postdata() {
+    return OAuthUtil::build_http_query($this->parameters);
+  }
 
   /**
    * builds the Authorization: header
    */
-  public function to_header() {/*{{{*/
-    $out ='Authorization: OAuth realm=""';
+  public function to_header($realm=null) {
+    $first = true;
+	if($realm) {
+      $out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
+      $first = false;
+    } else
+      $out = 'Authorization: OAuth';
+
     $total = array();
     foreach ($this->parameters as $k => $v) {
       if (substr($k, 0, 5) != "oauth") continue;
-      if (is_array($v)) throw new OAuthException('Arrays not supported in headers');
-      $out .= ',' . OAuthUtil::urlencode_rfc3986($k) . '="' . OAuthUtil::urlencode_rfc3986($v) . '"';
+      if (is_array($v)) {
+        throw new OAuthException('Arrays not supported in headers');
+      }
+      $out .= ($first) ? ' ' : ',';
+      $out .= OAuthUtil::urlencode_rfc3986($k) .
+              '="' .
+              OAuthUtil::urlencode_rfc3986($v) .
+              '"';
+      $first = false;
     }
     return $out;
-  }/*}}}*/
+  }
 
-  public function __toString() {/*{{{*/
+  public function __toString() {
     return $this->to_url();
-  }/*}}}*/
+  }
 
 
-  public function sign_request($signature_method, $consumer, $token) {/*{{{*/
-    $this->set_parameter("oauth_signature_method", $signature_method->get_name());
+  public function sign_request($signature_method, $consumer, $token) {
+    $this->set_parameter(
+      "oauth_signature_method",
+      $signature_method->get_name(),
+      false
+    );
     $signature = $this->build_signature($signature_method, $consumer, $token);
-    $this->set_parameter("oauth_signature", $signature);
-  }/*}}}*/
+    $this->set_parameter("oauth_signature", $signature, false);
+  }
 
-  public function build_signature($signature_method, $consumer, $token) {/*{{{*/
+  public function build_signature($signature_method, $consumer, $token) {
     $signature = $signature_method->build_signature($this, $consumer, $token);
     return $signature;
-  }/*}}}*/
+  }
 
   /**
    * util function: current timestamp
    */
-  private static function generate_timestamp() {/*{{{*/
+  private static function generate_timestamp() {
     return time();
-  }/*}}}*/
+  }
 
   /**
    * util function: current nonce
    */
-  private static function generate_nonce() {/*{{{*/
+  private static function generate_nonce() {
     $mt = microtime();
     $rand = mt_rand();
 
     return md5($mt . $rand); // md5s look nicer than numbers
-  }/*}}}*/
-
-  /**
-   * util function for turning the Authorization: header into
-   * parameters, has to do some unescaping
-   */
-  private static function split_header($header) {/*{{{*/
-    $pattern = '/(([-_a-z]*)=("([^"]*)"|([^,]*)),?)/';
-    $offset = 0;
-    $params = array();
-    while (preg_match($pattern, $header, $matches, PREG_OFFSET_CAPTURE, $offset) > 0) {
-      $match = $matches[0];
-      $header_name = $matches[2][0];
-      $header_content = (isset($matches[5])) ? $matches[5][0] : $matches[4][0];
-      $params[$header_name] = OAuthUtil::urldecode_rfc3986( $header_content );
-      $offset = $match[1] + strlen($match[0]);
-    }
-  
-    if (isset($params['realm'])) {
-       unset($params['realm']);
-    }
-
-    return $params;
-  }/*}}}*/
-
-  /**
-   * helper to try to sort out headers for people who aren't running apache
-   */
-  private static function get_headers() {/*{{{*/
-    if (function_exists('apache_request_headers')) {
-      // we need this to get the actual Authorization: header
-      // because apache tends to tell us it doesn't exist
-      return apache_request_headers();
-    }
-    // otherwise we don't have apache and are just going to have to hope
-    // that $_SERVER actually contains what we need
-    $out = array();
-    foreach ($_SERVER as $key => $value) {
-      if (substr($key, 0, 5) == "HTTP_") {
-        // this is chaos, basically it is just there to capitalize the first
-        // letter of every word that is not an initial HTTP and strip HTTP
-        // code from przemek
-        $key = str_replace(" ", "-", ucwords(strtolower(str_replace("_", " ", substr($key, 5)))));
-        $out[$key] = $value;
-      }
-    }
-    return $out;
-  }/*}}}*/
-}/*}}}*/
+  }
+}
 
-class OAuthServer {/*{{{*/
+class OAuthServer {
   protected $timestamp_threshold = 300; // in seconds, five minutes
-  protected $version = 1.0;             // hi blaine
+  protected $version = '1.0';             // hi blaine
   protected $signature_methods = array();
 
   protected $data_store;
 
-  function __construct($data_store) {/*{{{*/
+  function __construct($data_store) {
     $this->data_store = $data_store;
-  }/*}}}*/
+  }
+
+  public function add_signature_method($signature_method) {
+    $this->signature_methods[$signature_method->get_name()] =
+      $signature_method;
+  }
 
-  public function add_signature_method($signature_method) {/*{{{*/
-    $this->signature_methods[$signature_method->get_name()] = 
-        $signature_method;
-  }/*}}}*/
-  
   // high level functions
 
   /**
    * process a request_token request
    * returns the request token on success
    */
-  public function fetch_request_token(&$request) {/*{{{*/
+  public function fetch_request_token(&$request) {
     $this->get_version($request);
 
     $consumer = $this->get_consumer($request);
@@ -517,16 +509,18 @@ class OAuthServer {/*{{{*/
 
     $this->check_signature($request, $consumer, $token);
 
-    $new_token = $this->data_store->new_request_token($consumer);
+    // Rev A change
+    $callback = $request->get_parameter('oauth_callback');
+    $new_token = $this->data_store->new_request_token($consumer, $callback);
 
     return $new_token;
-  }/*}}}*/
+  }
 
   /**
    * process an access_token request
    * returns the access token on success
    */
-  public function fetch_access_token(&$request) {/*{{{*/
+  public function fetch_access_token(&$request) {
     $this->get_version($request);
 
     $consumer = $this->get_consumer($request);
@@ -534,63 +528,76 @@ class OAuthServer {/*{{{*/
     // requires authorized request token
     $token = $this->get_token($request, $consumer, "request");
 
-
     $this->check_signature($request, $consumer, $token);
 
-    $new_token = $this->data_store->new_access_token($token, $consumer);
+    // Rev A change
+    $verifier = $request->get_parameter('oauth_verifier');
+    $new_token = $this->data_store->new_access_token($token, $consumer, $verifier);
 
     return $new_token;
-  }/*}}}*/
+  }
 
   /**
    * verify an api call, checks all the parameters
    */
-  public function verify_request(&$request) {/*{{{*/
+  public function verify_request(&$request) {
     $this->get_version($request);
     $consumer = $this->get_consumer($request);
     $token = $this->get_token($request, $consumer, "access");
     $this->check_signature($request, $consumer, $token);
     return array($consumer, $token);
-  }/*}}}*/
+  }
 
   // Internals from here
   /**
    * version 1
    */
-  private function get_version(&$request) {/*{{{*/
+  private function get_version(&$request) {
     $version = $request->get_parameter("oauth_version");
     if (!$version) {
-      $version = 1.0;
+      // Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present. 
+      // Chapter 7.0 ("Accessing Protected Ressources")
+      $version = '1.0';
     }
-    if ($version && $version != $this->version) {
+    if ($version !== $this->version) {
       throw new OAuthException("OAuth version '$version' not supported");
     }
     return $version;
-  }/*}}}*/
+  }
 
   /**
    * figure out the signature with some defaults
    */
-  private function get_signature_method(&$request) {/*{{{*/
-    $signature_method =  
-        @$request->get_parameter("oauth_signature_method");
+  private function get_signature_method($request) {
+    $signature_method = $request instanceof OAuthRequest 
+        ? $request->get_parameter("oauth_signature_method")
+        : NULL;
+
     if (!$signature_method) {
-      $signature_method = "PLAINTEXT";
+      // According to chapter 7 ("Accessing Protected Ressources") the signature-method
+      // parameter is required, and we can't just fallback to PLAINTEXT
+      throw new OAuthException('No signature method parameter. This parameter is required');
     }
-    if (!in_array($signature_method, 
+
+    if (!in_array($signature_method,
                   array_keys($this->signature_methods))) {
       throw new OAuthException(
-        "Signature method '$signature_method' not supported try one of the following: " . implode(", ", array_keys($this->signature_methods))
-      );      
+        "Signature method '$signature_method' not supported " .
+        "try one of the following: " .
+        implode(", ", array_keys($this->signature_methods))
+      );
     }
     return $this->signature_methods[$signature_method];
-  }/*}}}*/
+  }
 
   /**
    * try to find the consumer for the provided request's consumer key
    */
-  private function get_consumer(&$request) {/*{{{*/
-    $consumer_key = @$request->get_parameter("oauth_consumer_key");
+  private function get_consumer($request) {
+    $consumer_key = $request instanceof OAuthRequest 
+        ? $request->get_parameter("oauth_consumer_key")
+        : NULL;
+
     if (!$consumer_key) {
       throw new OAuthException("Invalid consumer key");
     }
@@ -601,13 +608,16 @@ class OAuthServer {/*{{{*/
     }
 
     return $consumer;
-  }/*}}}*/
+  }
 
   /**
    * try to find the token for the provided request's token key
    */
-  private function get_token(&$request, $consumer, $token_type="access") {/*{{{*/
-    $token_field = @$request->get_parameter('oauth_token');
+  private function get_token($request, $consumer, $token_type="access") {
+    $token_field = $request instanceof OAuthRequest
+         ? $request->get_parameter('oauth_token')
+         : NULL;
+
     $token = $this->data_store->lookup_token(
       $consumer, $token_type, $token_field
     );
@@ -615,175 +625,255 @@ class OAuthServer {/*{{{*/
       throw new OAuthException("Invalid $token_type token: $token_field");
     }
     return $token;
-  }/*}}}*/
+  }
 
   /**
    * all-in-one function to check the signature on a request
    * should guess the signature method appropriately
    */
-  private function check_signature(&$request, $consumer, $token) {/*{{{*/
+  private function check_signature($request, $consumer, $token) {
     // this should probably be in a different method
-    $timestamp = @$request->get_parameter('oauth_timestamp');
-    $nonce = @$request->get_parameter('oauth_nonce');
+    $timestamp = $request instanceof OAuthRequest
+        ? $request->get_parameter('oauth_timestamp')
+        : NULL;
+    $nonce = $request instanceof OAuthRequest
+        ? $request->get_parameter('oauth_nonce')
+        : NULL;
 
     $this->check_timestamp($timestamp);
     $this->check_nonce($consumer, $token, $nonce, $timestamp);
 
     $signature_method = $this->get_signature_method($request);
 
-    $signature = $request->get_parameter('oauth_signature');    
+    $signature = $request->get_parameter('oauth_signature');
     $valid_sig = $signature_method->check_signature(
-      $request, 
-      $consumer, 
-      $token, 
+      $request,
+      $consumer,
+      $token,
       $signature
     );
 
     if (!$valid_sig) {
       throw new OAuthException("Invalid signature");
     }
-  }/*}}}*/
+  }
 
   /**
    * check that the timestamp is new enough
    */
-  private function check_timestamp($timestamp) {/*{{{*/
+  private function check_timestamp($timestamp) {
+    if( ! $timestamp )
+      throw new OAuthException(
+        'Missing timestamp parameter. The parameter is required'
+      );
+    
     // verify that timestamp is recentish
     $now = time();
-    if ($now - $timestamp > $this->timestamp_threshold) {
-      throw new OAuthException("Expired timestamp, yours $timestamp, ours $now");
+    if (abs($now - $timestamp) > $this->timestamp_threshold) {
+      throw new OAuthException(
+        "Expired timestamp, yours $timestamp, ours $now"
+      );
     }
-  }/*}}}*/
+  }
 
   /**
    * check that the nonce is not repeated
    */
-  private function check_nonce($consumer, $token, $nonce, $timestamp) {/*{{{*/
+  private function check_nonce($consumer, $token, $nonce, $timestamp) {
+    if( ! $nonce )
+      throw new OAuthException(
+        'Missing nonce parameter. The parameter is required'
+      );
+
     // verify that the nonce is uniqueish
-    $found = $this->data_store->lookup_nonce($consumer, $token, $nonce, $timestamp);
+    $found = $this->data_store->lookup_nonce(
+      $consumer,
+      $token,
+      $nonce,
+      $timestamp
+    );
     if ($found) {
       throw new OAuthException("Nonce already used: $nonce");
     }
-  }/*}}}*/
-
-
+  }
 
-}/*}}}*/
+}
 
-class OAuthDataStore {/*{{{*/
-  function lookup_consumer($consumer_key) {/*{{{*/
+class OAuthDataStore {
+  function lookup_consumer($consumer_key) {
     // implement me
-  }/*}}}*/
+  }
 
-  function lookup_token($consumer, $token_type, $token) {/*{{{*/
+  function lookup_token($consumer, $token_type, $token) {
     // implement me
-  }/*}}}*/
+  }
 
-  function lookup_nonce($consumer, $token, $nonce, $timestamp) {/*{{{*/
+  function lookup_nonce($consumer, $token, $nonce, $timestamp) {
     // implement me
-  }/*}}}*/
+  }
 
-  function new_request_token($consumer) {/*{{{*/
+  function new_request_token($consumer, $callback = null) {
     // return a new token attached to this consumer
-  }/*}}}*/
+  }
 
-  function new_access_token($token, $consumer) {/*{{{*/
+  function new_access_token($token, $consumer, $verifier = null) {
     // return a new access token attached to this consumer
     // for the user associated with this token if the request token
     // is authorized
     // should also invalidate the request token
-  }/*}}}*/
-
-}/*}}}*/
-
-
-/*  A very naive dbm-based oauth storage
- */
-class SimpleOAuthDataStore extends OAuthDataStore {/*{{{*/
-  private $dbh;
+  }
 
-  function __construct($path = "oauth.gdbm") {/*{{{*/
-    $this->dbh = dba_popen($path, 'c', 'gdbm');
-  }/*}}}*/
+}
+
+class OAuthUtil {
+  public static function urlencode_rfc3986($input) {
+  if (is_array($input)) {
+    return array_map(array('OAuthUtil', 'urlencode_rfc3986'), $input);
+  } else if (is_scalar($input)) {
+    return str_replace(
+      '+',
+      ' ',
+      str_replace('%7E', '~', rawurlencode($input))
+    );
+  } else {
+    return '';
+  }
+}
 
-  function __destruct() {/*{{{*/
-    dba_close($this->dbh);
-  }/*}}}*/
 
-  function lookup_consumer($consumer_key) {/*{{{*/
-    $rv = dba_fetch("consumer_$consumer_key", $this->dbh);
-    if ($rv === FALSE) {
-      return NULL;
-    }
-    $obj = unserialize($rv);
-    if (!($obj instanceof OAuthConsumer)) {
-      return NULL;
-    }
-    return $obj;
-  }/*}}}*/
+  // This decode function isn't taking into consideration the above
+  // modifications to the encoding process. However, this method doesn't
+  // seem to be used anywhere so leaving it as is.
+  public static function urldecode_rfc3986($string) {
+    return urldecode($string);
+  }
 
-  function lookup_token($consumer, $token_type, $token) {/*{{{*/
-    $rv = dba_fetch("${token_type}_${token}", $this->dbh);
-    if ($rv === FALSE) {
-      return NULL;
-    }
-    $obj = unserialize($rv);
-    if (!($obj instanceof OAuthToken)) {
-      return NULL;
+  // Utility function for turning the Authorization: header into
+  // parameters, has to do some unescaping
+  // Can filter out any non-oauth parameters if needed (default behaviour)
+  // May 28th, 2010 - method updated to tjerk.meesters for a speed improvement.
+  //                  see http://code.google.com/p/oauth/issues/detail?id=163
+  public static function split_header($header, $only_allow_oauth_parameters = true) {
+    $params = array();
+    if (preg_match_all('/('.($only_allow_oauth_parameters ? 'oauth_' : '').'[a-z_-]*)=(:?"([^"]*)"|([^,]*))/', $header, $matches)) {
+      foreach ($matches[1] as $i => $h) {
+        $params[$h] = OAuthUtil::urldecode_rfc3986(empty($matches[3][$i]) ? $matches[4][$i] : $matches[3][$i]);
+      }
+      if (isset($params['realm'])) {
+        unset($params['realm']);
+      }
     }
-    return $obj;
-  }/*}}}*/
+    return $params;
+  }
 
-  function lookup_nonce($consumer, $token, $nonce, $timestamp) {/*{{{*/
-    if (dba_exists("nonce_$nonce", $this->dbh)) {
-      return TRUE;
+  // helper to try to sort out headers for people who aren't running apache
+  public static function get_headers() {
+    if (function_exists('apache_request_headers')) {
+      // we need this to get the actual Authorization: header
+      // because apache tends to tell us it doesn't exist
+      $headers = apache_request_headers();
+
+      // sanitize the output of apache_request_headers because
+      // we always want the keys to be Cased-Like-This and arh()
+      // returns the headers in the same case as they are in the
+      // request
+      $out = array();
+      foreach ($headers AS $key => $value) {
+        $key = str_replace(
+            " ",
+            "-",
+            ucwords(strtolower(str_replace("-", " ", $key)))
+          );
+        $out[$key] = $value;
+      }
     } else {
-      dba_insert("nonce_$nonce", "1", $this->dbh);
-      return FALSE;
+      // otherwise we don't have apache and are just going to have to hope
+      // that $_SERVER actually contains what we need
+      $out = array();
+      if( isset($_SERVER['CONTENT_TYPE']) )
+        $out['Content-Type'] = $_SERVER['CONTENT_TYPE'];
+      if( isset($_ENV['CONTENT_TYPE']) )
+        $out['Content-Type'] = $_ENV['CONTENT_TYPE'];
+
+      foreach ($_SERVER as $key => $value) {
+        if (substr($key, 0, 5) == "HTTP_") {
+          // this is chaos, basically it is just there to capitalize the first
+          // letter of every word that is not an initial HTTP and strip HTTP
+          // code from przemek
+          $key = str_replace(
+            " ",
+            "-",
+            ucwords(strtolower(str_replace("_", " ", substr($key, 5))))
+          );
+          $out[$key] = $value;
+        }
+      }
     }
-  }/*}}}*/
-
-  function new_token($consumer, $type="request") {/*{{{*/
-    $key = md5(time());
-    $secret = time() + time();
-    $token = new OAuthToken($key, md5(md5($secret)));
-    if (!dba_insert("${type}_$key", serialize($token), $this->dbh)) {
-      throw new OAuthException("doooom!");
+    return $out;
+  }
+
+  // This function takes a input like a=b&a=c&d=e and returns the parsed
+  // parameters like this
+  // array('a' => array('b','c'), 'd' => 'e')
+  public static function parse_parameters( $input ) {
+    if (!isset($input) || !$input) return array();
+
+    $pairs = explode('&', $input);
+
+    $parsed_parameters = array();
+    foreach ($pairs as $pair) {
+      $split = explode('=', $pair, 2);
+      $parameter = OAuthUtil::urldecode_rfc3986($split[0]);
+      $value = isset($split[1]) ? OAuthUtil::urldecode_rfc3986($split[1]) : '';
+
+      if (isset($parsed_parameters[$parameter])) {
+        // We have already recieved parameter(s) with this name, so add to the list
+        // of parameters with this name
+
+        if (is_scalar($parsed_parameters[$parameter])) {
+          // This is the first duplicate, so transform scalar (string) into an array
+          // so we can add the duplicates
+          $parsed_parameters[$parameter] = array($parsed_parameters[$parameter]);
+        }
+
+        $parsed_parameters[$parameter][] = $value;
+      } else {
+        $parsed_parameters[$parameter] = $value;
+      }
     }
-    return $token;
-  }/*}}}*/
+    return $parsed_parameters;
+  }
 
-  function new_request_token($consumer) {/*{{{*/
-    return $this->new_token($consumer, "request");
-  }/*}}}*/
+  public static function build_http_query($params) {
+    if (!$params) return '';
 
-  function new_access_token($token, $consumer) {/*{{{*/
+    // Urlencode both keys and values
+    $keys = OAuthUtil::urlencode_rfc3986(array_keys($params));
+    $values = OAuthUtil::urlencode_rfc3986(array_values($params));
+    $params = array_combine($keys, $values);
 
-    $token = $this->new_token($consumer, 'access');
-    dba_delete("request_" . $token->key, $this->dbh);
-    return $token;
-  }/*}}}*/
-}/*}}}*/
-
-class OAuthUtil {/*{{{*/
-  public static function urlencode_rfc3986($input) {/*{{{*/
-	if (is_array($input)) {
-		return array_map(array('OAuthUtil','urlencode_rfc3986'), $input);
-	} else if (is_scalar($input)) {
-		return str_replace('+', ' ',
-	                       str_replace('%7E', '~', rawurlencode($input)));
-	} else {
-		return '';
-	}
-  }/*}}}*/
-    
+    // Parameters are sorted by name, using lexicographical byte value ordering.
+    // Ref: Spec: 9.1.1 (1)
+    uksort($params, 'strcmp');
 
-  // This decode function isn't taking into consideration the above 
-  // modifications to the encoding process. However, this method doesn't 
-  // seem to be used anywhere so leaving it as is.
-  public static function urldecode_rfc3986($string) {/*{{{*/
-    return rawurldecode($string);
-  }/*}}}*/
-}/*}}}*/
+    $pairs = array();
+    foreach ($params as $parameter => $value) {
+      if (is_array($value)) {
+        // If two or more parameters share the same name, they are sorted by their value
+        // Ref: Spec: 9.1.1 (1)
+        // June 12th, 2010 - changed to sort because of issue 164 by hidetaka
+        sort($value, SORT_STRING);
+        foreach ($value as $duplicate_value) {
+          $pairs[] = $parameter . '=' . $duplicate_value;
+        }
+      } else {
+        $pairs[] = $parameter . '=' . $value;
+      }
+    }
+    // For each parameter, the name is separated from the corresponding value by an '=' character (ASCII code 61)
+    // Each name-value pair is separated by an '&' character (ASCII code 38)
+    return implode('&', $pairs);
+  }
+}
 
 ?>
diff --git a/lib/apiaction.php b/lib/apiaction.php
index 0ebf88282..afba8ab63 100644
--- a/lib/apiaction.php
+++ b/lib/apiaction.php
@@ -1244,23 +1244,29 @@ class ApiAction extends Action
 
         // Do not emit error header for JSONP
         if (!isset($this->callback)) {
-            header('HTTP/1.1 '.$code.' '.$status_string);
+            header('HTTP/1.1 ' . $code . ' ' . $status_string);
         }
 
-        if ($format == 'xml') {
+        switch($format) {
+        case 'xml':
             $this->initDocument('xml');
             $this->elementStart('hash');
             $this->element('error', null, $msg);
             $this->element('request', null, $_SERVER['REQUEST_URI']);
             $this->elementEnd('hash');
             $this->endDocument('xml');
-        } elseif ($format == 'json'){
+            break;
+        case 'json':
             $this->initDocument('json');
             $error_array = array('error' => $msg, 'request' => $_SERVER['REQUEST_URI']);
             print(json_encode($error_array));
             $this->endDocument('json');
-        } else {
-
+            break;
+        case 'text':
+            header('Content-Type: text/plain; charset=utf-8');
+            print $msg;
+            break;
+        default:
             // If user didn't request a useful format, throw a regular client error
             throw new ClientException($msg, $code);
         }
diff --git a/lib/apioauth.php b/lib/apioauth.php
index 1c87e4232..54cecf92a 100644
--- a/lib/apioauth.php
+++ b/lib/apioauth.php
@@ -30,13 +30,12 @@
 if (!defined('STATUSNET')) {
     exit(1);
 }
-
+require_once INSTALLDIR . '/lib/apiaction.php';
 require_once INSTALLDIR . '/lib/apioauthstore.php';
 
 /**
- * Base action for API OAuth enpoints.  Clean up the
- * the request, and possibly some other common things
- * here.
+ * Base action for API OAuth enpoints. Clean up the
+ * request. Some other common functions.
  *
  * @category API
  * @package  StatusNet
@@ -44,7 +43,7 @@ require_once INSTALLDIR . '/lib/apioauthstore.php';
  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  * @link     http://status.net/
  */
-class ApiOauthAction extends Action
+class ApiOauthAction extends ApiAction
 {
     /**
      * Is this a read-only action?
@@ -77,6 +76,12 @@ class ApiOauthAction extends Action
         self::cleanRequest();
     }
 
+    /*
+     * Clean up the request so the OAuth library doesn't find
+     * any extra parameters or anything else it's not expecting.
+     * I'm looking at you, p parameter.
+     */
+
     static function cleanRequest()
     {
         // kill evil effects of magical slashing
@@ -86,31 +91,19 @@ class ApiOauthAction extends Action
         }
 
         // strip out the p param added in index.php
-
-        // XXX: should we strip anything else?  Or alternatively
-        // only allow a known list of params?
         unset($_GET['p']);
         unset($_POST['p']);
-    }
+        unset($_REQUEST['p']);
 
-    function getCallback($url, $params)
-    {
-        foreach ($params as $k => $v) {
-            $url = $this->appendQueryVar($url,
-                                         OAuthUtil::urlencode_rfc3986($k),
-                                         OAuthUtil::urlencode_rfc3986($v));
+        $queryArray = explode('&', $_SERVER['QUERY_STRING']);
+
+        for ($i = 0; $i < sizeof($queryArray); $i++) {
+            if (substr($queryArray[$i], 0, 2) == 'p=') {
+                unset($queryArray[$i]);
+            }
         }
 
-        return $url;
+        $_SERVER['QUERY_STRING'] = implode('&', $queryArray);
     }
 
-    function appendQueryVar($url, $k, $v) {
-        $url = preg_replace('/(.*)(\?|&)' . $k . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&');
-        $url = substr($url, 0, -1);
-        if (strpos($url, '?') === false) {
-            return ($url . '?' . $k . '=' . $v);
-        } else {
-            return ($url . '&' . $k . '=' . $v);
-        }
-    }
 }
diff --git a/lib/apioauthstore.php b/lib/apioauthstore.php
index eca93866f..f3bf0b857 100644
--- a/lib/apioauthstore.php
+++ b/lib/apioauthstore.php
@@ -71,33 +71,37 @@ class ApiStatusNetOAuthDataStore extends StatusNetOAuthDataStore
         }
     }
 
-    function new_access_token($token, $consumer)
+    function new_access_token($token, $consumer, $verifier)
     {
-        common_debug('new_access_token("'.$token->key.'","'.$consumer->key.'")', __FILE__);
+        common_debug(
+            'new_access_token("' . $token->key . '","' . $consumer->key. '","' . $verifier . '")',
+             __FILE__
+        );
 
         $rt = new Token();
+
         $rt->consumer_key = $consumer->key;
-        $rt->tok = $token->key;
-        $rt->type = 0; // request
+        $rt->tok          = $token->key;
+        $rt->type         = 0; // request
 
         $app = Oauth_application::getByConsumerKey($consumer->key);
+        assert(!empty($app));
 
-        if (empty($app)) {
-            common_debug("empty app!");
-        }
+        if ($rt->find(true) && $rt->state == 1 && $rt->verifier == $verifier) { // authorized
 
-        if ($rt->find(true) && $rt->state == 1) { // authorized
             common_debug('request token found.', __FILE__);
 
             // find the associated user of the app
 
             $appUser = new Oauth_application_user();
+
             $appUser->application_id = $app->id;
-            $appUser->token = $rt->tok;
+            $appUser->token          = $rt->tok;
+
             $result = $appUser->find(true);
 
             if (!empty($result)) {
-                common_debug("Oath app user found.");
+                common_debug("Ouath app user found.");
             } else {
                 common_debug("Oauth app user not found. app id $app->id token $rt->tok");
                 return null;
@@ -106,10 +110,12 @@ class ApiStatusNetOAuthDataStore extends StatusNetOAuthDataStore
             // go ahead and make the access token
 
             $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->consumer_key      = $consumer->key;
+            $at->tok               = common_good_rand(16);
+            $at->secret            = common_good_rand(16);
+            $at->type              = 1; // access
+            $at->verifier          = $verifier;
+            $at->verified_callback = $rt->verified_callback; // 1.0a
             $at->created = DB_DataObject_Cast::dateTime();
 
             if (!$at->insert()) {
@@ -183,4 +189,40 @@ class ApiStatusNetOAuthDataStore extends StatusNetOAuthDataStore
             throw new Exception(_('Failed to delete revoked token.'));
         }
     }
+
+    /*
+     * Create a new request token. Overrided to support OAuth 1.0a callback
+     *
+     * @param OAuthConsumer $consumer the OAuth Consumer for this token
+     * @param string        $callback the verified OAuth callback URL
+     *
+     * @return OAuthToken   $token a new unauthorized OAuth request token
+     */
+
+    function new_request_token($consumer, $callback)
+    {
+        $t = new Token();
+        $t->consumer_key = $consumer->key;
+        $t->tok = common_good_rand(16);
+        $t->secret = common_good_rand(16);
+        $t->type = 0; // request
+        $t->state = 0; // unauthorized
+        $t->verified_callback = $callback;
+
+        if ($callback === 'oob') {
+            // six digit pin
+            $t->verifier = mt_rand(0, 9999999);
+        } else {
+            $t->verifier = common_good_rand(8);
+        }
+
+        $t->created = DB_DataObject_Cast::dateTime();
+        if (!$t->insert()) {
+            return null;
+        } else {
+            return new OAuthToken($t->tok, $t->secret);
+        }
+    }
+
+
 }
diff --git a/lib/clienterroraction.php b/lib/clienterroraction.php
index 08bced5bd..9233c9bde 100644
--- a/lib/clienterroraction.php
+++ b/lib/clienterroraction.php
@@ -12,7 +12,7 @@
  * @link     http://status.net/
  *
  * StatusNet - the distributed open-source microblogging tool
- * Copyright (C) 2008, 2009, StatusNet, Inc.
+ * Copyright (C) 2008-2010 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
@@ -32,7 +32,7 @@ if (!defined('STATUSNET') && !defined('LACONICA')) {
     exit(1);
 }
 
-require_once INSTALLDIR.'/lib/error.php';
+require_once INSTALLDIR . '/lib/error.php';
 
 /**
  * Class for displaying HTTP client errors
@@ -90,4 +90,26 @@ class ClientErrorAction extends ErrorAction
 
         $this->showPage();
     }
+
+    /**
+     *  To specify additional HTTP headers for the action
+     *
+     *  @return void
+     */
+    function extraHeaders()
+    {
+        $status_string = @self::$status[$this->code];
+        header('HTTP/1.1 '.$this->code.' '.$status_string);
+    }
+
+    /**
+     * Page title.
+     *
+     * @return page title
+     */
+
+    function title()
+    {
+        return @self::$status[$this->code];
+    }
 }
diff --git a/lib/connectsettingsaction.php b/lib/connectsettingsaction.php
index bb2e86176..325276c5f 100644
--- a/lib/connectsettingsaction.php
+++ b/lib/connectsettingsaction.php
@@ -116,9 +116,9 @@ class ConnectSettingsNav extends Widget
             }
 
             $menu['oauthconnectionssettings'] = array(
-                // TRANS: Menu item for OAth connection settings.
+                // TRANS: Menu item for OuAth connection settings.
                 _m('MENU','Connections'),
-                // TRANS: Tooltip for connected applications (Connections through OAth) menu item.
+                // TRANS: Tooltip for connected applications (Connections through OAuth) menu item.
                 _('Authorized connected applications')
             );
 
diff --git a/lib/deletegroupform.php b/lib/deletegroupform.php
new file mode 100644
index 000000000..9d8012d33
--- /dev/null
+++ b/lib/deletegroupform.php
@@ -0,0 +1,123 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Form for joining a group
+ *
+ * PHP version 5
+ *
+ * LICENCE: 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/>.
+ *
+ * @category  Form
+ * @package   StatusNet
+ * @author    Evan Prodromou <evan@status.net>
+ * @author    Sarven Capadisli <csarven@status.net>
+ * @author    Brion Vibber <brion@status.net>
+ * @copyright 2009, 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+/**
+ * Form for deleting a group
+ *
+ * @category Form
+ * @package  StatusNet
+ * @author   Evan Prodromou <evan@status.net>
+ * @author   Sarven Capadisli <csarven@status.net>
+ * @author   Brion Vibber <brion@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://status.net/
+ *
+ * @see      UnsubscribeForm
+ * @fixme    merge a bunch of this stuff with similar form types to reduce boilerplate
+ */
+
+class DeleteGroupForm extends Form
+{
+    /**
+     * group for user to delete
+     */
+
+    var $group = null;
+
+    /**
+     * Constructor
+     *
+     * @param HTMLOutputter $out   output channel
+     * @param group         $group group to join
+     */
+
+    function __construct($out=null, $group=null)
+    {
+        parent::__construct($out);
+
+        $this->group = $group;
+    }
+
+    /**
+     * ID of the form
+     *
+     * @return string ID of the form
+     */
+
+    function id()
+    {
+        return 'group-delete-' . $this->group->id;
+    }
+
+    /**
+     * class of the form
+     *
+     * @return string of the form class
+     */
+
+    function formClass()
+    {
+        return 'form_group_delete';
+    }
+
+    /**
+     * Action of the form
+     *
+     * @return string URL of the action
+     */
+
+    function action()
+    {
+        return common_local_url('deletegroup',
+                                array('id' => $this->group->id));
+    }
+
+    function formData()
+    {
+        $this->out->hidden($this->id() . '-returnto-action', 'groupbyid', 'returnto-action');
+        $this->out->hidden($this->id() . '-returnto-id', $this->group->id, 'returnto-id');
+    }
+
+    /**
+     * Action elements
+     *
+     * @return void
+     */
+
+    function formActions()
+    {
+        $this->out->submit('submit', _('Delete'));
+    }
+}
diff --git a/lib/error.php b/lib/error.php
index a6a29119f..762425dc4 100644
--- a/lib/error.php
+++ b/lib/error.php
@@ -33,6 +33,8 @@ if (!defined('STATUSNET') && !defined('LACONICA')) {
     exit(1);
 }
 
+require_once INSTALLDIR . '/lib/info.php';
+
 /**
  * Base class for displaying HTTP errors
  *
@@ -42,7 +44,7 @@ if (!defined('STATUSNET') && !defined('LACONICA')) {
  * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
  * @link     http://status.net/
  */
-class ErrorAction extends Action
+class ErrorAction extends InfoAction
 {
     static $status = array();
 
@@ -52,7 +54,7 @@ class ErrorAction extends Action
 
     function __construct($message, $code, $output='php://output', $indent=null)
     {
-        parent::__construct($output, $indent);
+        parent::__construct(null, $message, $output, $indent);
 
         $this->code = $code;
         $this->message = $message;
@@ -64,43 +66,6 @@ class ErrorAction extends Action
         $this->prepare($_REQUEST);
     }
 
-    /**
-     *  To specify additional HTTP headers for the action
-     *
-     *  @return void
-     */
-    function extraHeaders()
-    {
-        $status_string = @self::$status[$this->code];
-        header('HTTP/1.1 '.$this->code.' '.$status_string);
-    }
-
-    /**
-     * Display content.
-     *
-     * @return nothing
-     */
-    function showContent()
-    {
-        $this->element('div', array('class' => 'error'), $this->message);
-    }
-
-    /**
-     * Page title.
-     *
-     * @return page title
-     */
-
-    function title()
-    {
-        return @self::$status[$this->code];
-    }
-
-    function isReadOnly($args)
-    {
-        return true;
-    }
-
     function showPage()
     {
         if ($this->minimal) {
@@ -116,32 +81,16 @@ class ErrorAction extends Action
         exit();
     }
 
-    // Overload a bunch of stuff so the page isn't too bloated
-
-    function showBody()
+    /**
+     * Display content.
+     *
+     * @return nothing
+     */
+    function showContent()
     {
-        $this->elementStart('body', array('id' => 'error'));
-        $this->elementStart('div', array('id' => 'wrap'));
-        $this->showHeader();
-        $this->showCore();
-        $this->showFooter();
-        $this->elementEnd('div');
-        $this->elementEnd('body');
+        $this->element('div', array('class' => 'error'), $this->message);
     }
 
-    function showCore()
-    {
-        $this->elementStart('div', array('id' => 'core'));
-        $this->showContentBlock();
-        $this->elementEnd('div');
-    }
 
-    function showHeader()
-    {
-        $this->elementStart('div', array('id' => 'header'));
-        $this->showLogo();
-        $this->showPrimaryNav();
-        $this->elementEnd('div');
-    }
 
 }
diff --git a/lib/info.php b/lib/info.php
new file mode 100644
index 000000000..395c6522e
--- /dev/null
+++ b/lib/info.php
@@ -0,0 +1,118 @@
+<?php
+
+/**
+ * Information action
+ *
+ * PHP version 5
+ *
+ * @category Action
+ * @package  StatusNet
+ * @author   Zach Copley <zach@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link     http://status.net/
+ *
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, 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);
+}
+
+/**
+ * Base class for displaying dialog box like messages to the user
+ *
+ * @category Action
+ * @package  StatusNet
+ * @author   Zach Copley <zach@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link     http://status.net/
+ *
+ * @see ErrorAction
+ */
+
+class InfoAction extends Action
+{
+    var $message = null;
+
+    function __construct($title, $message, $output='php://output', $indent=null)
+    {
+        parent::__construct($output, $indent);
+
+        $this->message = $message;
+        $this->title   = $title;
+
+        // XXX: hack alert: usually we aren't going to
+        // call this page directly, but because it's
+        // an action it needs an args array anyway
+        $this->prepare($_REQUEST);
+    }
+    
+    /**
+     * Page title.
+     *
+     * @return page title
+     */
+
+    function title()
+    {
+        return empty($this->title) ? '' : $this->title;
+    }
+
+    function isReadOnly($args)
+    {
+        return true;
+    }
+
+    // Overload a bunch of stuff so the page isn't too bloated
+
+    function showBody()
+    {
+        $this->elementStart('body', array('id' => 'error'));
+        $this->elementStart('div', array('id' => 'wrap'));
+        $this->showHeader();
+        $this->showCore();
+        $this->showFooter();
+        $this->elementEnd('div');
+        $this->elementEnd('body');
+    }
+
+    function showCore()
+    {
+        $this->elementStart('div', array('id' => 'core'));
+        $this->showContentBlock();
+        $this->elementEnd('div');
+    }
+
+    function showHeader()
+    {
+        $this->elementStart('div', array('id' => 'header'));
+        $this->showLogo();
+        $this->showPrimaryNav();
+        $this->elementEnd('div');
+    }
+
+    /**
+     * Display content.
+     *
+     * @return nothing
+     */
+    function showContent()
+    {
+        $this->element('div', array('class' => 'info'), $this->message);
+    }
+
+}
diff --git a/lib/installer.php b/lib/installer.php
index 2eff2d85a..c046eadea 100644
--- a/lib/installer.php
+++ b/lib/installer.php
@@ -85,7 +85,11 @@ abstract class Installer
         $config = INSTALLDIR.'/config.php';
         if (file_exists($config)) {
             if (!is_writable($config) || filesize($config) > 0) {
-                $this->warning('Config file "config.php" already exists.');
+                if (filesize($config) == 0) {
+                    $this->warning('Config file "config.php" already exists and is empty, but is not writable.');
+                } else {
+                    $this->warning('Config file "config.php" already exists.');
+                }
                 $pass = false;
             }
         }
diff --git a/lib/oauthstore.php b/lib/oauthstore.php
index f3ee629fd..1c8e72500 100644
--- a/lib/oauthstore.php
+++ b/lib/oauthstore.php
@@ -55,6 +55,17 @@ class StatusNetOAuthDataStore extends OAuthDataStore
         }
     }
 
+    function getTokenByKey($token_key)
+    {
+        $t = new Token();
+        $t->tok = $token_key;
+        if ($t->find(true)) {
+            return $t;
+        } else {
+            return null;
+        }
+    }
+
     // http://oauth.net/core/1.0/#nonce
     // "The Consumer SHALL then generate a Nonce value that is unique for
     // all requests with that timestamp."
@@ -317,13 +328,18 @@ class StatusNetOAuthDataStore extends OAuthDataStore
     function add_avatar($profile, $url)
     {
         $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
-        copy($url, $temp_filename);
-        $imagefile = new ImageFile($profile->id, $temp_filename);
-        $filename = Avatar::filename($profile->id,
-                                     image_type_to_extension($imagefile->type),
-                                     null,
-                                     common_timestamp());
-        rename($temp_filename, Avatar::path($filename));
+        try {
+            copy($url, $temp_filename);
+            $imagefile = new ImageFile($profile->id, $temp_filename);
+            $filename = Avatar::filename($profile->id,
+                                         image_type_to_extension($imagefile->type),
+                                         null,
+                                         common_timestamp());
+            rename($temp_filename, Avatar::path($filename));
+        } catch (Exception $e) {
+            unlink($temp_filename);
+            throw $e;
+        }
         return $profile->setOriginal($filename);
     }
 
diff --git a/lib/right.php b/lib/right.php
index deb451fde..bacbea5f2 100644
--- a/lib/right.php
+++ b/lib/right.php
@@ -60,5 +60,6 @@ class Right
     const MAKEGROUPADMIN     = 'makegroupadmin';
     const GRANTROLE          = 'grantrole';
     const REVOKEROLE         = 'revokerole';
+    const DELETEGROUP        = 'deletegroup';
 }
 
diff --git a/lib/router.php b/lib/router.php
index 00b299373..b1cc8d529 100644
--- a/lib/router.php
+++ b/lib/router.php
@@ -276,7 +276,7 @@ class Router
 
             $m->connect('group/new', array('action' => 'newgroup'));
 
-            foreach (array('edit', 'join', 'leave') as $v) {
+            foreach (array('edit', 'join', 'leave', 'delete') as $v) {
                 $m->connect('group/:nickname/'.$v,
                             array('action' => $v.'group'),
                             array('nickname' => '[a-zA-Z0-9]+'));
diff --git a/lib/servererroraction.php b/lib/servererroraction.php
index 9b5a553dc..54cc99099 100644
--- a/lib/servererroraction.php
+++ b/lib/servererroraction.php
@@ -96,4 +96,27 @@ class ServerErrorAction extends ErrorAction
 
         $this->showPage();
     }
+
+    /**
+     *  To specify additional HTTP headers for the action
+     *
+     *  @return void
+     */
+    function extraHeaders()
+    {
+        $status_string = @self::$status[$this->code];
+        header('HTTP/1.1 '.$this->code.' '.$status_string);
+    }
+
+    /**
+     * Page title.
+     *
+     * @return page title
+     */
+
+    function title()
+    {
+        return @self::$status[$this->code];
+    }
+
 }
diff --git a/lib/serverexception.php b/lib/serverexception.php
index 7dc9765ad..0dfbd04ff 100644
--- a/lib/serverexception.php
+++ b/lib/serverexception.php
@@ -22,7 +22,7 @@
  * @category  Exception
  * @package   StatusNet
  * @author    Evan Prodromou <evan@status.net>
- * @copyright 2008 StatusNet, Inc.
+ * @copyright 2008-2010 StatusNet, Inc.
  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  * @link      http://status.net/
  */
diff --git a/lib/statusnet.php b/lib/statusnet.php
index 7212a4a47..7cb831696 100644
--- a/lib/statusnet.php
+++ b/lib/statusnet.php
@@ -336,8 +336,11 @@ class StatusNet
 
         foreach ($config_files as $_config_file) {
             if (@file_exists($_config_file)) {
-                include($_config_file);
-                self::$have_config = true;
+                // Ignore 0-byte config files
+                if (filesize($_config_file) > 0) {
+                    include($_config_file);
+                    self::$have_config = true;
+                }
             }
         }
 
diff --git a/plugins/ModHelper/ModHelperPlugin.php b/plugins/ModHelper/ModHelperPlugin.php
new file mode 100644
index 000000000..2d0ae5b02
--- /dev/null
+++ b/plugins/ModHelper/ModHelperPlugin.php
@@ -0,0 +1,54 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, 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')) {
+    exit(1);
+}
+
+/**
+ * @package ModHelperPlugin
+ * @maintainer Brion Vibber <brion@status.net>
+ */
+class ModHelperPlugin extends Plugin
+{
+    function onPluginVersion(&$versions)
+    {
+        $versions[] = array('name' => 'ModHelper',
+                            'version' => STATUSNET_VERSION,
+                            'author' => 'Brion Vibber',
+                            'homepage' => 'http://status.net/wiki/Plugin:ModHelper',
+                            'rawdescription' =>
+                            _m('Lets users who have been manually marked as "modhelper"s silence accounts.'));
+
+        return true;
+    }
+
+    function onUserRightsCheck($profile, $right, &$result)
+    {
+        if ($right == Right::SILENCEUSER) {
+            // Hrm.... really we should confirm that the *other* user isn't privleged. :)
+            if ($profile->hasRole('modhelper')) {
+                $result = true;
+                return false;
+            }
+        }
+        return true;
+    }
+
+}
diff --git a/plugins/OStatus/classes/Ostatus_profile.php b/plugins/OStatus/classes/Ostatus_profile.php
index 47aee15f8..03fcb71df 100644
--- a/plugins/OStatus/classes/Ostatus_profile.php
+++ b/plugins/OStatus/classes/Ostatus_profile.php
@@ -1053,22 +1053,27 @@ class Ostatus_profile extends Memcached_DataObject
         // @fixme this should be better encapsulated
         // ripped from oauthstore.php (for old OMB client)
         $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
-        if (!copy($url, $temp_filename)) {
-            throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
-        }
+        try {
+            if (!copy($url, $temp_filename)) {
+                throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
+            }
 
-        if ($this->isGroup()) {
-            $id = $this->group_id;
-        } else {
-            $id = $this->profile_id;
-        }
-        // @fixme should we be using different ids?
-        $imagefile = new ImageFile($id, $temp_filename);
-        $filename = Avatar::filename($id,
-                                     image_type_to_extension($imagefile->type),
-                                     null,
-                                     common_timestamp());
-        rename($temp_filename, Avatar::path($filename));
+            if ($this->isGroup()) {
+                $id = $this->group_id;
+            } else {
+                $id = $this->profile_id;
+            }
+            // @fixme should we be using different ids?
+            $imagefile = new ImageFile($id, $temp_filename);
+            $filename = Avatar::filename($id,
+                                         image_type_to_extension($imagefile->type),
+                                         null,
+                                         common_timestamp());
+            rename($temp_filename, Avatar::path($filename));
+        } catch (Exception $e) {
+            unlink($temp_filename);
+            throw $e;
+        }
         // @fixme hardcoded chmod is lame, but seems to be necessary to
         // keep from accidentally saving images from command-line (queues)
         // that can't be read from web server, which causes hard-to-notice
diff --git a/plugins/WikiHowProfile/WikiHowProfilePlugin.php b/plugins/WikiHowProfile/WikiHowProfilePlugin.php
index fa683c483..753dff5a3 100644
--- a/plugins/WikiHowProfile/WikiHowProfilePlugin.php
+++ b/plugins/WikiHowProfile/WikiHowProfilePlugin.php
@@ -174,20 +174,25 @@ class WikiHowProfilePlugin extends Plugin
         // @fixme this should be better encapsulated
         // ripped from OStatus via oauthstore.php (for old OMB client)
         $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
-        if (!copy($url, $temp_filename)) {
-            throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
-        }
-
-        $profile = $user->getProfile();
-        $id = $profile->id;
-        // @fixme should we be using different ids?
+        try {
+            if (!copy($url, $temp_filename)) {
+                throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
+            }
 
-        $imagefile = new ImageFile($id, $temp_filename);
-        $filename = Avatar::filename($id,
-                                     image_type_to_extension($imagefile->type),
-                                     null,
-                                     common_timestamp());
-        rename($temp_filename, Avatar::path($filename));
+            $profile = $user->getProfile();
+            $id = $profile->id;
+            // @fixme should we be using different ids?
+
+            $imagefile = new ImageFile($id, $temp_filename);
+            $filename = Avatar::filename($id,
+                                         image_type_to_extension($imagefile->type),
+                                         null,
+                                         common_timestamp());
+            rename($temp_filename, Avatar::path($filename));
+        } catch (Exception $e) {
+            unlink($temp_filename);
+            throw $e;
+        }
         $profile->setOriginal($filename);
     }
 }
diff --git a/plugins/YammerImport/lib/yammerimporter.php b/plugins/YammerImport/lib/yammerimporter.php
index 80cbcff8e..93bc96d52 100644
--- a/plugins/YammerImport/lib/yammerimporter.php
+++ b/plugins/YammerImport/lib/yammerimporter.php
@@ -436,18 +436,23 @@ class YammerImporter
         // @fixme this should be better encapsulated
         // ripped from oauthstore.php (for old OMB client)
         $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
-        if (!copy($url, $temp_filename)) {
-            throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
-        }
+        try {
+            if (!copy($url, $temp_filename)) {
+                throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
+            }
 
-        $id = $dest->id;
-        // @fixme should we be using different ids?
-        $imagefile = new ImageFile($id, $temp_filename);
-        $filename = Avatar::filename($id,
-                                     image_type_to_extension($imagefile->type),
-                                     null,
-                                     common_timestamp());
-        rename($temp_filename, Avatar::path($filename));
+            $id = $dest->id;
+            // @fixme should we be using different ids?
+            $imagefile = new ImageFile($id, $temp_filename);
+            $filename = Avatar::filename($id,
+                                         image_type_to_extension($imagefile->type),
+                                         null,
+                                         common_timestamp());
+            rename($temp_filename, Avatar::path($filename));
+        } catch (Exception $e) {
+            unlink($temp_filename);
+            throw $e;
+        }
         // @fixme hardcoded chmod is lame, but seems to be necessary to
         // keep from accidentally saving images from command-line (queues)
         // that can't be read from web server, which causes hard-to-notice
diff --git a/tests/oauth/README b/tests/oauth/README
index dd76feb0c..13f1d0c03 100644
--- a/tests/oauth/README
+++ b/tests/oauth/README
@@ -1,22 +1,160 @@
 Some very rough test scripts for hitting up the OAuth endpoints.
 
-Note: this works best if you register an OAuth application, leaving
-the callback URL blank.
+These instructions assume you understand the basics of how OAuth
+works. You may want to read up about it first. Here are some good
+resources for learning about OAuth:
 
-Put your instance info and consumer key and secret in oauth.ini
+    http://hueniverse.com/oauth/
+    http://tools.ietf.org/html/rfc5849
 
-Example usage:
---------------
+To use these scripts (and OAuth in general) first you will need to
+register and OAuth client application with your StatusNet instance:
 
-php getrequesttoken.php
+    http://example.status.net/settings/oauthapps
 
-Gets a request token, token secret and a url to authorize it.  Once
-you authorize the request token you can exchange it for an access token...
+oauth.ini
+---------
 
-php exchangetokens.php --oauth_token=b9a79548a88c1aa9a5bea73103c6d41d --token_secret=4a47d9337fc0202a14ab552e17a3b657
+Using oauth.ini.sample as a guide, put your StatusNet OAuth endpoints
+and consumer key and secret in a file called oauth.ini and save it
+in the same directory as these scripts.
 
-Once you have your access token, go ahead and try a protected API
-resource:
+fetch_temp_creds.php
+--------------------
 
-php verifycreds.php --oauth_token=cf2de7665f0dda0a82c2dc39b01be7f9 --token_secret=4524c3b712200138e1a4cff2e9ca83d8
+Will fetch a request token, token secret and a URL to authorize the
+token.  Once you authorize the request token, you can exchange it
+for an access token.
+
+example usage:
+
+    $ php fetch_temp_creds.php
+    Request Token
+       - oauth_token        = 89d481e376edc622f08da5791e6a4446
+       - oauth_token_secret = 6d028bcd1ea125cbed7da2f254219885
+    Authorize URL
+        http://example.status.net/api/oauth/authorize?oauth_token=89d481e376edc622f08da5791e6a4446
+
+    Now paste the Authorize URL into your browser and authorize your temporary credentials.
+
+fetch_token_creds.php
+---------------------
+
+After you have authorized your request token, you will be presented
+with a verifier code, or pin, in your browser, which you will need
+to get an access token. Make sure you copy it into a text buffer
+or write it down or something. Then call fetch_token_credentials.php
+to exchange your temporary credentials for real token credentials.
+
+example usage:
+
+    $ php fetch_token_creds.php -t 89d481e376edc622f08da5791e6a4446 -s 6d028bcd1ea125cbed7da2f254219885 -v 305162
+    Access Token
+       - oauth_token        = 9b354df102d8e2b4621122c85d8d045c
+       - oauth_token_secret = 1800a88f1574b47d595214a74e5b1ec5
+
+
+oauth_verify_credentials.php
+----------------------------
+
+Now you should have real token credentials (an OAuth access token)
+and you can access protected API resources. This is an example
+script that calls /api/account/verify_credentials.xml.
+
+example usage:
+
+    $ php oauth_verify_creds.php -t 80305cd15c5c69834364ac02d7f9178c -s 673e3b2978b1b92c8edbfe172505fee1
+    <?xml version="1.0" encoding="UTF-8"?>
+    <user xmlns:statusnet="http://status.net/schema/api/1/">
+     <id>23</id>
+     <name>zach</name>
+     <screen_name>zach</screen_name>
+     <location></location>
+     <description></description>
+     <profile_image_url>http://example.status.net/theme/default/default-avatar-stream.png</profile_image_url>
+     <url></url>
+     <protected>false</protected>
+     <followers_count>0</followers_count>
+     <profile_background_color></profile_background_color>
+     <profile_text_color></profile_text_color>
+     <profile_link_color></profile_link_color>
+     <profile_sidebar_fill_color></profile_sidebar_fill_color>
+     <profile_sidebar_border_color></profile_sidebar_border_color>
+     <friends_count>0</friends_count>
+     <created_at>Thu Sep 30 23:11:00 +0000 2010</created_at>
+     <favourites_count>0</favourites_count>
+     <utc_offset>0</utc_offset>
+     <time_zone>UTC</time_zone>
+     <profile_background_image_url></profile_background_image_url>
+     <profile_background_tile>false</profile_background_tile>
+     <statuses_count>4</statuses_count>
+     <following>true</following>
+     <statusnet:blocking>false</statusnet:blocking>
+     <notifications>true</notifications>
+     <status>
+      <text>gar</text>
+      <truncated>false</truncated>
+      <created_at>Wed Oct 06 23:40:14 +0000 2010</created_at>
+      <in_reply_to_status_id></in_reply_to_status_id>
+      <source>web</source>
+      <id>7</id>
+      <in_reply_to_user_id></in_reply_to_user_id>
+      <in_reply_to_screen_name></in_reply_to_screen_name>
+      <geo></geo>
+      <favorited>false</favorited>
+      <statusnet:html>gar</statusnet:html>
+     </status>
+     <statusnet:profile_url>http://example.status.net/statusnet/zach</statusnet:profile_url>
+    </user>
+
+oauth_post_notice.php
+---------------------
+
+This is another test script that lets you post a notice via OAuth.
+
+example usage:
+
+    $ php oauth_post_notice.php -t 80305cd15c5c69834364ac02d7f9178c -s 673e3b2978b1b92c8edbfe172505fee1 -u 'Test test test...'
+    <?xml version="1.0" encoding="UTF-8"?>
+    <status xmlns:statusnet="http://status.net/schema/api/1/">
+     <text>Test test test...</text>
+     <truncated>false</truncated>
+     <created_at>Fri Oct 08 02:37:35 +0000 2010</created_at>
+     <in_reply_to_status_id></in_reply_to_status_id>
+     <source>&lt;a href=&quot;http://banana.com&quot; rel=&quot;nofollow&quot;&gt;Banana&lt;/a&gt;</source>
+     <id>8</id>
+     <in_reply_to_user_id></in_reply_to_user_id>
+     <in_reply_to_screen_name></in_reply_to_screen_name>
+     <geo></geo>
+     <favorited>false</favorited>
+     <user>
+      <id>23</id>
+      <name>zach</name>
+      <screen_name>zach</screen_name>
+      <location></location>
+      <description></description>
+      <profile_image_url>http://example.status.net/statusnet/theme/default/default-avatar-stream.png</profile_image_url>
+      <url></url>
+      <protected>false</protected>
+      <followers_count>0</followers_count>
+      <profile_background_color></profile_background_color>
+      <profile_text_color></profile_text_color>
+      <profile_link_color></profile_link_color>
+      <profile_sidebar_fill_color></profile_sidebar_fill_color>
+      <profile_sidebar_border_color></profile_sidebar_border_color>
+      <friends_count>0</friends_count>
+      <created_at>Thu Sep 30 23:11:00 +0000 2010</created_at>
+      <favourites_count>0</favourites_count>
+      <utc_offset>0</utc_offset>
+      <time_zone>UTC</time_zone>
+      <profile_background_image_url></profile_background_image_url>
+      <profile_background_tile>false</profile_background_tile>
+      <statuses_count>5</statuses_count>
+      <following>true</following>
+      <statusnet:blocking>false</statusnet:blocking>
+      <notifications>true</notifications>
+      <statusnet:profile_url>http://example.status.net/statusnet/zach</statusnet:profile_url>
+     </user>
+     <statusnet:html>Test test test...</statusnet:html>
+    </status>
 
diff --git a/tests/oauth/exchangetokens.php b/tests/oauth/exchangetokens.php
deleted file mode 100755
index 2394826c7..000000000
--- a/tests/oauth/exchangetokens.php
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/usr/bin/env php
-<?php
-/*
- * StatusNet - a 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/>.
- */
-
-define('INSTALLDIR', realpath(dirname(__FILE__) . '/../..'));
-
-require_once INSTALLDIR . '/extlib/OAuth.php';
-
-$ini = parse_ini_file("oauth.ini");
-
-$test_consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
-
-$at_endpoint = $ini['apiroot'] . $ini['access_token_url'];
-
-$shortoptions = 't:s:';
-$longoptions = array('oauth_token=', 'token_secret=');
-
-$helptext = <<<END_OF_ETOKENS_HELP
-  exchangetokens.php [options]
-  Exchange an authorized OAuth request token for an access token
-
-    -t --oauth_token       authorized request token
-    -s --token_secret      authorized request token secret
-
-END_OF_ETOKENS_HELP;
-
-require_once INSTALLDIR . '/scripts/commandline.inc';
-
-$token        = null;
-$token_secret = null;
-
-if (have_option('t', 'oauth_token')) {
-    $token = get_option_value('oauth_token');
-}
-
-if (have_option('s', 'token_secret')) {
-    $token_secret = get_option_value('s', 'token_secret');
-}
-
-if (empty($token)) {
-    print "Please specify a request token.\n";
-    exit(1);
-}
-
-if (empty($token_secret)) {
-    print "Please specify a request token secret.\n";
-    exit(1);
-}
-
-$rt = new OAuthToken($token, $token_secret);
-common_debug("Exchange request token = " . var_export($rt, true));
-
-$parsed = parse_url($at_endpoint);
-$params = array();
-parse_str($parsed['query'], $params);
-
-$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
-
-$req_req = OAuthRequest::from_consumer_and_token($test_consumer, $rt, "GET", $at_endpoint, $params);
-$req_req->sign_request($hmac_method, $test_consumer, $rt);
-
-$r = httpRequest($req_req->to_url());
-
-common_debug("Exchange request token = " . var_export($rt, true));
-common_debug("Exchange tokens URL: " . $req_req->to_url());
-
-$body = $r->getBody();
-
-$token_stuff = array();
-parse_str($body, $token_stuff);
-
-print 'Access token        : ' . $token_stuff['oauth_token'] . "\n";
-print 'Access token secret : ' . $token_stuff['oauth_token_secret'] . "\n";
-
-function httpRequest($url)
-{
-    $request = HTTPClient::start();
-
-    $request->setConfig(array(
-			      'follow_redirects' => true,
-			      'connect_timeout' => 120,
-			      'timeout' => 120,
-			      'ssl_verify_peer' => false,
-			      'ssl_verify_host' => false
-			      ));
-
-    return $request->get($url);
-}
-
diff --git a/tests/oauth/fetch_temp_creds.php b/tests/oauth/fetch_temp_creds.php
new file mode 100755
index 000000000..bea512a91
--- /dev/null
+++ b/tests/oauth/fetch_temp_creds.php
@@ -0,0 +1,106 @@
+#!/usr/bin/env php
+<?php
+/*
+ * StatusNet - a distributed open-source microblogging tool
+ * Copyright (C) 2010, 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/>.
+ */
+
+define('INSTALLDIR', realpath(dirname(__FILE__) . '/../..'));
+
+require_once INSTALLDIR . '/scripts/commandline.inc';
+require_once INSTALLDIR . '/extlib/OAuth.php';
+
+$ini = parse_ini_file("oauth.ini");
+
+// Check to make sure we have everything we need from the ini file
+foreach(array('consumer_key', 'consumer_secret', 'apiroot', 'request_token_url') as $inikey) {
+    if (empty($ini[$inikey])) {
+        print "You forgot to specify a $inikey in your oauth.ini file.\n";
+        exit(1);
+    }
+}
+
+$consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
+$endpoint = $ini['apiroot'] . $ini['request_token_url'];
+$parsed   = parse_url($endpoint);
+$params   = array();
+
+parse_str($parsed['query'], $params);
+$params['oauth_callback'] = 'oob'; // out-of-band
+
+$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
+
+try {
+    $req = OAuthRequest::from_consumer_and_token(
+        $consumer,
+        null,
+        "POST",
+        $endpoint,
+        $params
+    );
+    $req->sign_request($hmac_method, $consumer, NULL);
+    $r = httpRequest($endpoint, $req->to_postdata());
+} catch (Exception $e) {
+    // oh noez
+    print $e->getMessage();
+    print "\nOAuth Request:\n";
+    var_dump($req);
+    exit(1);
+}
+
+$body       = $r->getBody();
+$tokenStuff = array();
+
+parse_str($body, $tokenStuff);
+
+$tok       = $tokenStuff['oauth_token'];
+$confirmed = $tokenStuff['oauth_callback_confirmed'];
+
+if (empty($tokenStuff['oauth_token'])
+    || empty($tokenStuff['oauth_token_secret'])
+    || empty($confirmed)
+    || $confirmed != 'true')
+{
+    print "Error! HTTP response body: $body\n";
+    exit(1);
+}
+
+$authurl = $ini['apiroot'] . $ini['authorize_url'] . '?oauth_token=' . $tok;
+
+print "Request Token\n";
+print '   - oauth_token        = ' . $tokenStuff['oauth_token'] . "\n";
+print '   - oauth_token_secret = ' . $tokenStuff['oauth_token_secret'] . "\n";
+print "Authorize URL\n    $authurl\n\n";
+print "Now paste the Authorize URL into your browser and authorize your temporary credentials.\n";
+
+function httpRequest($endpoint, $poststr)
+{
+    $request = HTTPClient::start();
+
+    $request->setConfig(
+        array(
+            'follow_redirects' => true,
+	    'connect_timeout' => 120,
+	    'timeout' => 120,
+	    'ssl_verify_peer' => false,
+	    'ssl_verify_host' => false
+        )
+    );
+
+    // Turn signed request query string back into an array
+    parse_str($poststr, $postdata);
+    return $request->post($endpoint, null, $postdata);
+}
diff --git a/tests/oauth/fetch_token_creds.php b/tests/oauth/fetch_token_creds.php
new file mode 100755
index 000000000..a508c7240
--- /dev/null
+++ b/tests/oauth/fetch_token_creds.php
@@ -0,0 +1,146 @@
+#!/usr/bin/env php
+<?php
+/*
+ * StatusNet - a distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+define('INSTALLDIR', realpath(dirname(__FILE__) . '/../..'));
+
+require_once INSTALLDIR . '/extlib/OAuth.php';
+
+$ini = parse_ini_file("oauth.ini");
+
+// Check to make sure we have everything we need from the ini file
+foreach(array('consumer_key', 'consumer_secret', 'apiroot', 'access_token_url') as $inikey) {
+    if (empty($ini[$inikey])) {
+        print "You forgot to specify a $inikey in your oauth.ini file.\n";
+        exit(1);
+    }
+}
+
+$consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
+
+$endpoint = $ini['apiroot'] . $ini['access_token_url'];
+
+$shortoptions = 't:s:v:';
+$longoptions = array('oauth_token=', 'oauth_token_secret=', 'oauth_verifier=');
+
+$helptext = <<<END_OF_ETOKENS_HELP
+  fetch_token_creds.php [options]
+
+  Exchange authorized OAuth temporary credentials for token credentials
+  (an authorized request token for an access token)
+
+    -t --oauth_token        authorized request token
+    -s --oauth_token_secret authorized request token secret
+    -v --oauth_verifier     authorized request token verifier
+
+
+END_OF_ETOKENS_HELP;
+
+require_once INSTALLDIR . '/scripts/commandline.inc';
+
+$token = $secret = $verifier = null;
+
+if (have_option('t', 'oauth_token')) {
+    $token = get_option_value('t', 'oauth_token');
+}
+
+if (have_option('s', 'oauth_token_secret')) {
+    $secret = get_option_value('s', 'oauth_token_secret');
+}
+
+if (have_option('v', 'oauth_verifier')) {
+    $verifier = get_option_value('v', 'oauth_verifier');
+}
+
+if (empty($token)) {
+    print "Please specify the request token (--help for help).\n";
+    exit(1);
+}
+
+if (empty($secret)) {
+    print "Please specify the request token secret (--help for help).\n";
+    exit(1);
+}
+
+if (empty($verifier)) {
+    print "Please specify the request token verifier (--help for help).\n";
+    exit(1);
+}
+
+$rtok   = new OAuthToken($token, $secret);
+$parsed = parse_url($endpoint);
+parse_str($parsed['query'], $params);
+
+$params['oauth_verifier'] = $verifier; // 1.0a
+
+$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
+
+try {
+
+    $oauthReq = OAuthRequest::from_consumer_and_token(
+        $consumer,
+        $rtok,
+        "POST",
+        $endpoint,
+        $params
+    );
+
+    $oauthReq->sign_request($hmac_method, $consumer, $rtok);
+
+    $httpReq    = httpRequest($endpoint, $oauthReq->to_postdata());
+    $body       = $httpReq->getBody();
+
+} catch (Exception $e) {
+    // oh noez
+    print $e->getMessage();
+    print "\nOAuth Request:\n";
+    var_dump($oauthReq);
+    exit(1);
+}
+
+$tokenStuff = array();
+parse_str($body, $tokenStuff);
+
+if (empty($tokenStuff['oauth_token']) || empty($tokenStuff['oauth_token_secret'])) {
+    print "Error! HTTP response body: $body\n";
+    exit(1);
+}
+
+print "Access Token\n";
+print '   - oauth_token        = ' . $tokenStuff['oauth_token'] . "\n";
+print '   - oauth_token_secret = ' . $tokenStuff['oauth_token_secret'] . "\n";
+
+function httpRequest($endpoint, $poststr)
+{
+    $request = HTTPClient::start();
+
+    $request->setConfig(
+        array(
+            'follow_redirects' => true,
+	    'connect_timeout'  => 120,
+	    'timeout'          => 120,
+	    'ssl_verify_peer'  => false,
+	    'ssl_verify_host'  => false
+	)
+    );
+
+    parse_str($poststr, $postdata);
+    return $request->post($endpoint, null, $postdata);
+}
+
diff --git a/tests/oauth/getrequesttoken.php b/tests/oauth/getrequesttoken.php
deleted file mode 100755
index fc546a0f4..000000000
--- a/tests/oauth/getrequesttoken.php
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env php
-<?php
-/*
- * StatusNet - a distributed open-source microblogging tool
- * Copyright (C) 2008, 2009, StatusNet, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-define('INSTALLDIR', realpath(dirname(__FILE__) . '/../..'));
-
-require_once INSTALLDIR . '/scripts/commandline.inc';
-require_once INSTALLDIR . '/extlib/OAuth.php';
-
-$ini = parse_ini_file("oauth.ini");
-
-$test_consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
-
-$rt_endpoint = $ini['apiroot'] . $ini['request_token_url'];
-
-$parsed = parse_url($rt_endpoint);
-$params = array();
-
-parse_str($parsed['query'], $params);
-
-$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
-
-$req_req = OAuthRequest::from_consumer_and_token($test_consumer, NULL, "GET", $rt_endpoint, $params);
-$req_req->sign_request($hmac_method, $test_consumer, NULL);
-
-$r = httpRequest($req_req->to_url());
-
-$body = $r->getBody();
-
-$token_stuff = array();
-parse_str($body, $token_stuff);
-
-$authurl = $ini['apiroot'] . $ini['authorize_url'] . '?oauth_token=' . $token_stuff['oauth_token'];
-
-print 'Request token        : ' . $token_stuff['oauth_token'] . "\n";
-print 'Request token secret : ' . $token_stuff['oauth_token_secret'] . "\n";
-print "Authorize URL        : $authurl\n";
-
-//var_dump($req_req);
-
-function httpRequest($url)
-{
-    $request = HTTPClient::start();
-    
-    $request->setConfig(array(
-			      'follow_redirects' => true,
-			      'connect_timeout' => 120,
-			      'timeout' => 120,
-			      'ssl_verify_peer' => false,
-			      'ssl_verify_host' => false
-			      ));
-    
-    return $request->get($url);
-}
-
diff --git a/tests/oauth/oauth.ini b/tests/oauth/oauth.ini.sample
index 16b747fe4..927620e2f 100644
--- a/tests/oauth/oauth.ini
+++ b/tests/oauth/oauth.ini.sample
@@ -1,5 +1,5 @@
 ; Setup OAuth info here
-apiroot       = "http://YOURSTATUSNET/api"
+apiroot       = "https://YOURSTATUSNET/api"
 
 request_token_url = "/oauth/request_token"
 authorize_url     = "/oauth/authorize"
diff --git a/tests/oauth/statusupdate.php b/tests/oauth/oauth_post_notice.php
index 4aa230e28..5e9d2a7ab 100644
--- a/tests/oauth/statusupdate.php
+++ b/tests/oauth/oauth_post_notice.php
@@ -22,16 +22,16 @@ define('INSTALLDIR', realpath(dirname(__FILE__) . '/../..'));
 
 require_once INSTALLDIR . '/extlib/OAuth.php';
 
-$shortoptions = 'o:s:u:';
+$shortoptions = 't:s:u:';
 $longoptions = array('oauth_token=', 'token_secret=', 'update=');
 
 $helptext = <<<END_OF_VERIFY_HELP
-    statusupdate.php [options]
-    Update your status using OAuth
+    oauth_post_notice.php [options]
+    Update your status via OAuth
 
-    -o --oauth_token       access token
-    -s --token_secret      access token secret
-    -u --update            status update
+    -t --oauth_token        access token
+    -s --oauth_token_secret access token secret
+    -u --update             status update
 
 
 END_OF_VERIFY_HELP;
@@ -42,12 +42,12 @@ $update       = null;
 
 require_once INSTALLDIR . '/scripts/commandline.inc';
 
-if (have_option('o', 'oauth_token')) {
-    $token = get_option_value('oauth_token');
+if (have_option('t', 'oauth_token')) {
+    $token = get_option_value('t', 'oauth_token');
 }
 
-if (have_option('s', 'token_secret')) {
-    $token_secret = get_option_value('s', 'token_secret');
+if (have_option('s', 'oauth_token_secret')) {
+    $token_secret = get_option_value('s', 'oauth_token_secret');
 }
 
 if (have_option('u', 'update')) {
@@ -69,47 +69,56 @@ if (empty($update)) {
     exit(1);
 }
 
-$ini = parse_ini_file("oauth.ini");
-
-$test_consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
-
+$ini      = parse_ini_file("oauth.ini");
+$consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
 $endpoint = $ini['apiroot'] . '/statuses/update.xml';
 
-print "$endpoint\n";
-
-$at = new OAuthToken($token, $token_secret);
+$atok = new OAuthToken($token, $token_secret);
 
 $parsed = parse_url($endpoint);
-$params = array();
 parse_str($parsed['query'], $params);
 
 $params['status'] = $update;
 
 $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
 
-$req_req = OAuthRequest::from_consumer_and_token($test_consumer, $at, 'POST', $endpoint, $params);
-$req_req->sign_request($hmac_method, $test_consumer, $at);
+try {
 
-$r = httpRequest($req_req->to_url());
+    $oauthReq = OAuthRequest::from_consumer_and_token(
+        $consumer,
+        $atok,
+        'POST',
+        $endpoint,
+        $params
+    );
 
-$body = $r->getBody();
+    $oauthReq->sign_request($hmac_method, $consumer, $atok);
 
-print "$body\n";
+    $httpReq = httpRequest($endpoint, $oauthReq->to_postdata());
 
-//print $req_req->to_url() . "\n\n";
+    print $httpReq->getBody();
 
-function httpRequest($url)
+} catch (Exception $e) {
+    print "Error! . $e->getMessage() . 'HTTP reponse body: " . $httpReq->getBody();
+    exit(1);
+}
+
+function httpRequest($endpoint, $poststr)
 {
     $request = HTTPClient::start();
 
-    $request->setConfig(array(
-                              'follow_redirects' => true,
-                              'connect_timeout' => 120,
-                              'timeout' => 120,
-                              'ssl_verify_peer' => false,
-                              'ssl_verify_host' => false
-                              ));
-
-    return $request->post($url);
+    $request->setConfig(
+        array(
+            'follow_redirects' => true,
+	    'connect_timeout' => 120,
+	    'timeout' => 120,
+	    'ssl_verify_peer' => false,
+	    'ssl_verify_host' => false
+        )
+    );
+
+    // Turn signed request query string back into an array
+    parse_str($poststr, $postdata);
+    return $request->post($endpoint, null, $postdata);
 }
 
diff --git a/tests/oauth/verifycreds.php b/tests/oauth/oauth_verify_creds.php
index 873bdb8bd..7eea6e7e7 100755
--- a/tests/oauth/verifycreds.php
+++ b/tests/oauth/oauth_verify_creds.php
@@ -22,15 +22,15 @@ define('INSTALLDIR', realpath(dirname(__FILE__) . '/../..'));
 
 require_once INSTALLDIR . '/extlib/OAuth.php';
 
-$shortoptions = 'o:s:';
-$longoptions = array('oauth_token=', 'token_secret=');
+$shortoptions = 't:s:';
+$longoptions = array('oauth_token=', 'oauth_token_secret=');
 
 $helptext = <<<END_OF_VERIFY_HELP
-  verifycreds.php [options]
-  Use an access token to verify credentials thru the api
+  oauth_verify_creds.php [options]
+  Access /api/account/verify_credentials.xml with OAuth
 
-    -o --oauth_token       access token
-    -s --token_secret      access token secret
+    -t --oauth_token        access token
+    -s --oauth_token_secret access token secret
 
 END_OF_VERIFY_HELP;
 
@@ -39,63 +39,69 @@ $token_secret = null;
 
 require_once INSTALLDIR . '/scripts/commandline.inc';
 
-if (have_option('o', 'oauth_token')) {
-    $token = get_option_value('oauth_token');
+if (have_option('t', 'oauth_token')) {
+    $token = get_option_value('t', 'oauth_token');
 }
 
 if (have_option('s', 'token_secret')) {
-    $token_secret = get_option_value('s', 'token_secret');
+    $token_secret = get_option_value('s', 'oauth_token_secret');
 }
 
 if (empty($token)) {
-    print "Please specify an access token.\n";
+    print "Please specify an access token (--help for help).\n";
     exit(1);
 }
 
 if (empty($token_secret)) {
-    print "Please specify an access token secret.\n";
+    print "Please specify an access token secret (--help for help).\n";
     exit(1);
 }
 
-$ini = parse_ini_file("oauth.ini");
-
-$test_consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
-
+$ini      = parse_ini_file("oauth.ini");
+$consumer = new OAuthConsumer($ini['consumer_key'], $ini['consumer_secret']);
 $endpoint = $ini['apiroot'] . '/account/verify_credentials.xml';
 
-print "$endpoint\n";
-
-$at = new OAuthToken($token, $token_secret);
-
+$atok   = new OAuthToken($token, $token_secret);
 $parsed = parse_url($endpoint);
-$params = array();
+
 parse_str($parsed['query'], $params);
 
-$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
+try {
 
-$req_req = OAuthRequest::from_consumer_and_token($test_consumer, $at, "GET", $endpoint, $params);
-$req_req->sign_request($hmac_method, $test_consumer, $at);
+    $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
 
-$r = httpRequest($req_req->to_url());
+    $oauthReq = OAuthRequest::from_consumer_and_token(
+        $consumer,
+        $atok,
+        "GET",
+        $endpoint,
+        $params
+    );
 
-$body = $r->getBody();
+    $oauthReq->sign_request($hmac_method, $consumer, $atok);
 
-print "$body\n";
+    $httpReq = httpRequest($oauthReq->to_url());
 
-//print $req_req->to_url() . "\n\n";
+} catch (Exception $e) {
+    print "Error! HTTP response body: " . $httpReq->getBody();
+    exit(1);
+}
+
+print $httpReq->getBody();
 
 function httpRequest($url)
 {
     $request = HTTPClient::start();
 
-    $request->setConfig(array(
-			      'follow_redirects' => true,
-			      'connect_timeout' => 120,
-			      'timeout' => 120,
-			      'ssl_verify_peer' => false,
-			      'ssl_verify_host' => false
-			      ));
+    $request->setConfig(
+        array(
+            'follow_redirects' => true,
+	    'connect_timeout' => 120,
+	    'timeout' => 120,
+	    'ssl_verify_peer' => false,
+	    'ssl_verify_host' => false
+        )
+    );
 
     return $request->get($url);
 }
-