X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=actions%2Fapioauthrequesttoken.php;h=1279d5e092e63162a999f6774f75e4684a6e1374;hb=c285f80b1830cffd20a28c693d74c59f8c3c39f6;hp=c1ccd4b7d72d87bb422005892867952a07a6a190;hpb=6472331be51bc6d0e670603b2a89fb66022f6b51;p=quix0rs-gnu-social.git

diff --git a/actions/apioauthrequesttoken.php b/actions/apioauthrequesttoken.php
index c1ccd4b7d7..1279d5e092 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
  *
@@ -31,10 +31,8 @@ if (!defined('STATUSNET')) {
     exit(1);
 }
 
-require_once INSTALLDIR . '/lib/api.php';
-
 /**
- * Get an OAuth request token
+ * Issue temporary OAuth credentials (a request token)
  *
  * @category API
  * @package  StatusNet
@@ -42,8 +40,113 @@ require_once INSTALLDIR . '/lib/api.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 ApiOauthRequestTokenAction extends ApiAction
+class ApiOAuthRequestTokenAction extends ApiOAuthAction
 {
+    /**
+     * Take arguments for running
+     *
+     * @param array $args $_REQUEST args
+     *
+     * @return boolean success flag
+     */
+    function prepare(array $args = array())
+    {
+        parent::prepare($args);
+
+        // XXX: support "force_login" parameter like Twitter? (Forces the user to enter
+        // their credentials to ensure the correct users account is authorized.)
+
+        return true;
+    }
+
+    /**
+     * 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()
+    {
+        parent::handle();
+
+        $datastore   = new ApiGNUsocialOAuthDataStore();
+        $server      = new OAuthServer($datastore);
+        $hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
+
+        $server->add_signature_method($hmac_method);
+
+        try {
+
+            $req = OAuthRequest::from_request();
+
+            // verify callback
+            if (!$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);
+
+            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());
+
+            // 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 band 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 filter_var($callback, FILTER_VALIDATE_URL);
+        }
+    }
 }