From 8b34978892e0302e09ec471d03fabcb1cc4cf9a3 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@status.net>
Date: Fri, 3 Sep 2010 17:34:10 -0400
Subject: [PATCH] do a real retweet for a local repeat

---
 plugins/TwitterBridge/twitter.php            | 34 +++++++++++++++++---
 plugins/TwitterBridge/twitteroauthclient.php | 15 +++++++++
 2 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/plugins/TwitterBridge/twitter.php b/plugins/TwitterBridge/twitter.php
index 9c2ba502bf..20cdf42b82 100644
--- a/plugins/TwitterBridge/twitter.php
+++ b/plugins/TwitterBridge/twitter.php
@@ -145,17 +145,43 @@ function broadcast_twitter($notice)
     $flink = Foreign_link::getByUserID($notice->profile_id,
                                        TWITTER_SERVICE);
 
-    if (is_twitter_bound($notice, $flink)) {
-        if (TwitterOAuthClient::isPackedToken($flink->credentials)) {
+    // Don't bother with basic auth, since it's no longer allowed
+
+    if (!empty($flink) && TwitterOAuthClient::isPackedToken($flink->credentials)) {
+        if (!empty($notice->repeat_of) && is_twitter_notice($notice->repeat_of)) {
+            return retweet_notice($flink, Notice::staticGet('id', $notice->repeat_of));
+        } else if (is_twitter_bound($notice, $flink)) {
             return broadcast_oauth($notice, $flink);
-        } else {
-            return broadcast_basicauth($notice, $flink);
         }
     }
 
     return true;
 }
 
+function retweet_notice($flink, $notice)
+{
+    $token = TwitterOAuthClient::unpackToken($flink->credentials);
+    $client = new TwitterOAuthClient($token->key, $token->secret);
+
+    $id = twitter_status_id($notice);
+
+    try {
+        $status = $client->statusesRetweet($id);
+    } catch (OAuthClientException $e) {
+        return process_error($e, $flink, $notice);
+    }
+}
+
+function twitter_status_id($notice)
+{
+    if ($notice->source == 'twitter' &&
+        preg_match('#^http://twitter.com/[\w_.]+/status/(\d+)$#', $notice->uri, $match)) {
+        return $match[1];
+    }
+
+    return null;
+}
+
 /**
  * Pull any extra information from a notice that we should transfer over
  * to Twitter beyond the notice text itself.
diff --git a/plugins/TwitterBridge/twitteroauthclient.php b/plugins/TwitterBridge/twitteroauthclient.php
index d895d8c73c..5e5761360c 100644
--- a/plugins/TwitterBridge/twitteroauthclient.php
+++ b/plugins/TwitterBridge/twitteroauthclient.php
@@ -277,4 +277,19 @@ class TwitterOAuthClient extends OAuthClient
         return $ids;
     }
 
+    /**
+     * Calls Twitter's /statuses/retweet/id.json API method
+     *
+     * @param int $id id of the notice to retweet
+     *
+     * @return retweeted status
+     */
+
+    function statusesRetweet($id)
+    {
+        $url = "http://api.twitter.com/1/statuses/retweet/$id.json";
+        $response = $this->oAuthPost($url);
+        $status = json_decode($response);
+        return $status;
+    }
 }