Split the guts of Twitter status -> notice import from twitterstatusfetcher daemon into TwitterImport class which can be called from other places, letting us reuse code for the streaming API.

3 files changed, 655 insertions, 588 deletions

diff --git a/plugins/TwitterBridge/TwitterBridgePlugin.php b/plugins/TwitterBridge/TwitterBridgePlugin.php
index 097d4486f..128b062c7 100644
--- a/plugins/TwitterBridge/TwitterBridgePlugin.php
+++ b/plugins/TwitterBridge/TwitterBridgePlugin.php
@@ -200,6 +200,7 @@ class TwitterBridgePlugin extends Plugin
             return false;
         case 'TwitterOAuthClient':
         case 'TwitterQueueHandler':
+        case 'TwitterImport':
             include_once $dir . '/' . strtolower($cls) . '.php';
             return false;
         case 'Notice_to_status':
diff --git a/plugins/TwitterBridge/daemons/twitterstatusfetcher.php b/plugins/TwitterBridge/daemons/twitterstatusfetcher.php
index cef67b180..9298d9e3a 100755
--- a/plugins/TwitterBridge/daemons/twitterstatusfetcher.php
+++ b/plugins/TwitterBridge/daemons/twitterstatusfetcher.php
@@ -192,25 +192,12 @@ class TwitterStatusFetcher extends ParallelizingDaemon
 
         common_debug(LOG_INFO, $this->name() . ' - Retrieved ' . sizeof($timeline) . ' statuses from Twitter.');
 
+        $importer = new TwitterImport();
+
         // Reverse to preserve order
 
         foreach (array_reverse($timeline) as $status) {
-            // Hacktastic: filter out stuff coming from this StatusNet
-            $source = mb_strtolower(common_config('integration', 'source'));
-
-            if (preg_match("/$source/", mb_strtolower($status->source))) {
-                common_debug($this->name() . ' - Skipping import of status ' .
-                             $status->id . ' with source ' . $source);
-                continue;
-            }
-
-            // Don't save it if the user is protected
-            // FIXME: save it but treat it as private
-            if ($status->user->protected) {
-                continue;
-            }
-
-            $notice = $this->saveStatus($status);
+            $notice = $importer->importStatus($status);
 
             if (!empty($notice)) {
                 Inbox::insertNotice($flink->user_id, $notice->id);
@@ -226,578 +213,6 @@ class TwitterStatusFetcher extends ParallelizingDaemon
         $flink->last_noticesync = common_sql_now();
         $flink->update();
     }
-
-    function saveStatus($status)
-    {
-        $profile = $this->ensureProfile($status->user);
-
-        if (empty($profile)) {
-            common_log(LOG_ERR, $this->name() .
-                ' - Problem saving notice. No associated Profile.');
-            return null;
-        }
-
-        $statusUri = $this->makeStatusURI($status->user->screen_name, $status->id);
-
-        // check to see if we've already imported the status
-        $n2s = Notice_to_status::staticGet('status_id', $status->id);
-
-        if (!empty($n2s)) {
-            common_log(
-                LOG_INFO,
-                $this->name() .
-                " - Ignoring duplicate import: {$status->id}"
-            );
-            return Notice::staticGet('id', $n2s->notice_id);
-        }
-
-        // If it's a retweet, save it as a repeat!
-        if (!empty($status->retweeted_status)) {
-            common_log(LOG_INFO, "Status {$status->id} is a retweet of {$status->retweeted_status->id}.");
-            $original = $this->saveStatus($status->retweeted_status);
-            if (empty($original)) {
-                return null;
-            } else {
-                $author = $original->getProfile();
-                // TRANS: Message used to repeat a notice. RT is the abbreviation of 'retweet'.
-                // TRANS: %1$s is the repeated user's name, %2$s is the repeated notice.
-                $content = sprintf(_m('RT @%1$s %2$s'),
-                                   $author->nickname,
-                                   $original->content);
-
-                if (Notice::contentTooLong($content)) {
-                    $contentlimit = Notice::maxContent();
-                    $content = mb_substr($content, 0, $contentlimit - 4) . ' ...';
-                }
-
-                $repeat = Notice::saveNew($profile->id,
-                                          $content,
-                                          'twitter',
-                                          array('repeat_of' => $original->id,
-                                                'uri' => $statusUri,
-                                                'is_local' => Notice::GATEWAY));
-                common_log(LOG_INFO, "Saved {$repeat->id} as a repeat of {$original->id}");
-                Notice_to_status::saveNew($repeat->id, $status->id);
-                return $repeat;
-            }
-        }
-
-        $notice = new Notice();
-
-        $notice->profile_id = $profile->id;
-        $notice->uri        = $statusUri;
-        $notice->url        = $statusUri;
-        $notice->created    = strftime(
-            '%Y-%m-%d %H:%M:%S',
-            strtotime($status->created_at)
-        );
-
-        $notice->source     = 'twitter';
-
-        $notice->reply_to   = null;
-
-        if (!empty($status->in_reply_to_status_id)) {
-            common_log(LOG_INFO, "Status {$status->id} is a reply to status {$status->in_reply_to_status_id}");
-            $n2s = Notice_to_status::staticGet('status_id', $status->in_reply_to_status_id);
-            if (empty($n2s)) {
-                common_log(LOG_INFO, "Couldn't find local notice for status {$status->in_reply_to_status_id}");
-            } else {
-                $reply = Notice::staticGet('id', $n2s->notice_id);
-                if (empty($reply)) {
-                    common_log(LOG_INFO, "Couldn't find local notice for status {$status->in_reply_to_status_id}");
-                } else {
-                    common_log(LOG_INFO, "Found local notice {$reply->id} for status {$status->in_reply_to_status_id}");
-                    $notice->reply_to     = $reply->id;
-                    $notice->conversation = $reply->conversation;
-                }
-            }
-        }
-
-        if (empty($notice->conversation)) {
-            $conv = Conversation::create();
-            $notice->conversation = $conv->id;
-            common_log(LOG_INFO, "No known conversation for status {$status->id} so making a new one {$conv->id}.");
-        }
-
-        $notice->is_local   = Notice::GATEWAY;
-
-        $notice->content  = html_entity_decode($status->text, ENT_QUOTES, 'UTF-8');
-        $notice->rendered = $this->linkify($status);
-
-        if (Event::handle('StartNoticeSave', array(&$notice))) {
-
-            $id = $notice->insert();
-
-            if (!$id) {
-                common_log_db_error($notice, 'INSERT', __FILE__);
-                common_log(LOG_ERR, $this->name() .
-                    ' - Problem saving notice.');
-            }
-
-            Event::handle('EndNoticeSave', array($notice));
-        }
-
-        Notice_to_status::saveNew($notice->id, $status->id);
-
-        $this->saveStatusMentions($notice, $status);
-
-        $notice->blowOnInsert();
-
-        return $notice;
-    }
-
-    /**
-     * Make an URI for a status.
-     *
-     * @param object $status status object
-     *
-     * @return string URI
-     */
-    function makeStatusURI($username, $id)
-    {
-        return 'http://twitter.com/'
-          . $username
-          . '/status/'
-          . $id;
-    }
-
-    /**
-     * Look up a Profile by profileurl field.  Profile::staticGet() was
-     * not working consistently.
-     *
-     * @param string $nickname   local nickname of the Twitter user
-     * @param string $profileurl the profile url
-     *
-     * @return mixed value the first Profile with that url, or null
-     */
-    function getProfileByUrl($nickname, $profileurl)
-    {
-        $profile = new Profile();
-        $profile->nickname = $nickname;
-        $profile->profileurl = $profileurl;
-        $profile->limit(1);
-
-        if ($profile->find()) {
-            $profile->fetch();
-            return $profile;
-        }
-
-        return null;
-    }
-
-    /**
-     * Check to see if this Twitter status has already been imported
-     *
-     * @param Profile $profile   Twitter user's local profile
-     * @param string  $statusUri URI of the status on Twitter
-     *
-     * @return mixed value a matching Notice or null
-     */
-    function checkDupe($profile, $statusUri)
-    {
-        $notice = new Notice();
-        $notice->uri = $statusUri;
-        $notice->profile_id = $profile->id;
-        $notice->limit(1);
-
-        if ($notice->find()) {
-            $notice->fetch();
-            return $notice;
-        }
-
-        return null;
-    }
-
-    function ensureProfile($user)
-    {
-        // check to see if there's already a profile for this user
-        $profileurl = 'http://twitter.com/' . $user->screen_name;
-        $profile = $this->getProfileByUrl($user->screen_name, $profileurl);
-
-        if (!empty($profile)) {
-            common_debug($this->name() .
-                         " - Profile for $profile->nickname found.");
-
-            // Check to see if the user's Avatar has changed
-
-            $this->checkAvatar($user, $profile);
-            return $profile;
-
-        } else {
-            common_debug($this->name() . ' - Adding profile and remote profile ' .
-                         "for Twitter user: $profileurl.");
-
-            $profile = new Profile();
-            $profile->query("BEGIN");
-
-            $profile->nickname = $user->screen_name;
-            $profile->fullname = $user->name;
-            $profile->homepage = $user->url;
-            $profile->bio = $user->description;
-            $profile->location = $user->location;
-            $profile->profileurl = $profileurl;
-            $profile->created = common_sql_now();
-
-            try {
-                $id = $profile->insert();
-            } catch(Exception $e) {
-                common_log(LOG_WARNING, $this->name . ' Couldn\'t insert profile - ' . $e->getMessage());
-            }
-
-            if (empty($id)) {
-                common_log_db_error($profile, 'INSERT', __FILE__);
-                $profile->query("ROLLBACK");
-                return false;
-            }
-
-            // check for remote profile
-
-            $remote_pro = Remote_profile::staticGet('uri', $profileurl);
-
-            if (empty($remote_pro)) {
-                $remote_pro = new Remote_profile();
-
-                $remote_pro->id = $id;
-                $remote_pro->uri = $profileurl;
-                $remote_pro->created = common_sql_now();
-
-                try {
-                    $rid = $remote_pro->insert();
-                } catch (Exception $e) {
-                    common_log(LOG_WARNING, $this->name() . ' Couldn\'t save remote profile - ' . $e->getMessage());
-                }
-
-                if (empty($rid)) {
-                    common_log_db_error($profile, 'INSERT', __FILE__);
-                    $profile->query("ROLLBACK");
-                    return false;
-                }
-            }
-
-            $profile->query("COMMIT");
-
-            $this->saveAvatars($user, $id);
-
-            return $profile;
-        }
-    }
-
-    function checkAvatar($twitter_user, $profile)
-    {
-        global $config;
-
-        $path_parts = pathinfo($twitter_user->profile_image_url);
-
-        $newname = 'Twitter_' . $twitter_user->id . '_' .
-            $path_parts['basename'];
-
-        $oldname = $profile->getAvatar(48)->filename;
-
-        if ($newname != $oldname) {
-            common_debug($this->name() . ' - Avatar for Twitter user ' .
-                         "$profile->nickname has changed.");
-            common_debug($this->name() . " - old: $oldname new: $newname");
-
-            $this->updateAvatars($twitter_user, $profile);
-        }
-
-        if ($this->missingAvatarFile($profile)) {
-            common_debug($this->name() . ' - Twitter user ' .
-                         $profile->nickname .
-                         ' is missing one or more local avatars.');
-            common_debug($this->name() ." - old: $oldname new: $newname");
-
-            $this->updateAvatars($twitter_user, $profile);
-        }
-    }
-
-    function updateAvatars($twitter_user, $profile) {
-
-        global $config;
-
-        $path_parts = pathinfo($twitter_user->profile_image_url);
-
-        $img_root = substr($path_parts['basename'], 0, -11);
-        $ext = $path_parts['extension'];
-        $mediatype = $this->getMediatype($ext);
-
-        foreach (array('mini', 'normal', 'bigger') as $size) {
-            $url = $path_parts['dirname'] . '/' .
-                $img_root . '_' . $size . ".$ext";
-            $filename = 'Twitter_' . $twitter_user->id . '_' .
-                $img_root . "_$size.$ext";
-
-            $this->updateAvatar($profile->id, $size, $mediatype, $filename);
-            $this->fetchAvatar($url, $filename);
-        }
-    }
-
-    function missingAvatarFile($profile) {
-        foreach (array(24, 48, 73) as $size) {
-            $filename = $profile->getAvatar($size)->filename;
-            $avatarpath = Avatar::path($filename);
-            if (file_exists($avatarpath) == FALSE) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    function getMediatype($ext)
-    {
-        $mediatype = null;
-
-        switch (strtolower($ext)) {
-        case 'jpg':
-            $mediatype = 'image/jpg';
-            break;
-        case 'gif':
-            $mediatype = 'image/gif';
-            break;
-        default:
-            $mediatype = 'image/png';
-        }
-
-        return $mediatype;
-    }
-
-    function saveAvatars($user, $id)
-    {
-        global $config;
-
-        $path_parts = pathinfo($user->profile_image_url);
-        $ext = $path_parts['extension'];
-        $end = strlen('_normal' . $ext);
-        $img_root = substr($path_parts['basename'], 0, -($end+1));
-        $mediatype = $this->getMediatype($ext);
-
-        foreach (array('mini', 'normal', 'bigger') as $size) {
-            $url = $path_parts['dirname'] . '/' .
-                $img_root . '_' . $size . ".$ext";
-            $filename = 'Twitter_' . $user->id . '_' .
-                $img_root . "_$size.$ext";
-
-            if ($this->fetchAvatar($url, $filename)) {
-                $this->newAvatar($id, $size, $mediatype, $filename);
-            } else {
-                common_log(LOG_WARNING, $id() .
-                           " - Problem fetching Avatar: $url");
-            }
-        }
-    }
-
-    function updateAvatar($profile_id, $size, $mediatype, $filename) {
-
-        common_debug($this->name() . " - Updating avatar: $size");
-
-        $profile = Profile::staticGet($profile_id);
-
-        if (empty($profile)) {
-            common_debug($this->name() . " - Couldn't get profile: $profile_id!");
-            return;
-        }
-
-        $sizes = array('mini' => 24, 'normal' => 48, 'bigger' => 73);
-        $avatar = $profile->getAvatar($sizes[$size]);
-
-        // Delete the avatar, if present
-        if ($avatar) {
-            $avatar->delete();
-        }
-
-        $this->newAvatar($profile->id, $size, $mediatype, $filename);
-    }
-
-    function newAvatar($profile_id, $size, $mediatype, $filename)
-    {
-        global $config;
-
-        $avatar = new Avatar();
-        $avatar->profile_id = $profile_id;
-
-        switch($size) {
-        case 'mini':
-            $avatar->width  = 24;
-            $avatar->height = 24;
-            break;
-        case 'normal':
-            $avatar->width  = 48;
-            $avatar->height = 48;
-            break;
-        default:
-            // Note: Twitter's big avatars are a different size than
-            // StatusNet's (StatusNet's = 96)
-            $avatar->width  = 73;
-            $avatar->height = 73;
-        }
-
-        $avatar->original = 0; // we don't have the original
-        $avatar->mediatype = $mediatype;
-        $avatar->filename = $filename;
-        $avatar->url = Avatar::url($filename);
-
-        $avatar->created = common_sql_now();
-
-        try {
-            $id = $avatar->insert();
-        } catch (Exception $e) {
-            common_log(LOG_WARNING, $this->name() . ' Couldn\'t insert avatar - ' . $e->getMessage());
-        }
-
-        if (empty($id)) {
-            common_log_db_error($avatar, 'INSERT', __FILE__);
-            return null;
-        }
-
-        common_debug($this->name() .
-                     " - Saved new $size avatar for $profile_id.");
-
-        return $id;
-    }
-
-    /**
-     * Fetch a remote avatar image and save to local storage.
-     *
-     * @param string $url avatar source URL
-     * @param string $filename bare local filename for download
-     * @return bool true on success, false on failure
-     */
-    function fetchAvatar($url, $filename)
-    {
-        common_debug($this->name() . " - Fetching Twitter avatar: $url");
-
-        $request = HTTPClient::start();
-        $response = $request->get($url);
-        if ($response->isOk()) {
-            $avatarfile = Avatar::path($filename);
-            $ok = file_put_contents($avatarfile, $response->getBody());
-            if (!$ok) {
-                common_log(LOG_WARNING, $this->name() .
-                           " - Couldn't open file $filename");
-                return false;
-            }
-        } else {
-            return false;
-        }
-
-        return true;
-    }
-
-    const URL = 1;
-    const HASHTAG = 2;
-    const MENTION = 3;
-
-    function linkify($status)
-    {
-        $text = $status->text;
-
-        if (empty($status->entities)) {
-            common_log(LOG_WARNING, "No entities data for {$status->id}; trying to fake up links ourselves.");
-            $text = common_replace_urls_callback($text, 'common_linkify');
-            $text = preg_replace('/(^|\&quot\;|\'|\(|\[|\{|\s+)#([\pL\pN_\-\.]{1,64})/e', "'\\1#'.TwitterStatusFetcher::tagLink('\\2')", $text);
-            $text = preg_replace('/(^|\s+)@([a-z0-9A-Z_]{1,64})/e', "'\\1@'.TwitterStatusFetcher::atLink('\\2')", $text);
-            return $text;
-        }
-
-        // Move all the entities into order so we can
-        // replace them in reverse order and thus
-        // not mess up their indices
-
-        $toReplace = array();
-
-        if (!empty($status->entities->urls)) {
-            foreach ($status->entities->urls as $url) {
-                $toReplace[$url->indices[0]] = array(self::URL, $url);
-            }
-        }
-
-        if (!empty($status->entities->hashtags)) {
-            foreach ($status->entities->hashtags as $hashtag) {
-                $toReplace[$hashtag->indices[0]] = array(self::HASHTAG, $hashtag);
-            }
-        }
-
-        if (!empty($status->entities->user_mentions)) {
-            foreach ($status->entities->user_mentions as $mention) {
-                $toReplace[$mention->indices[0]] = array(self::MENTION, $mention);
-            }
-        }
-
-        // sort in reverse order by key
-
-        krsort($toReplace);
-
-        foreach ($toReplace as $part) {
-            list($type, $object) = $part;
-            switch($type) {
-            case self::URL:
-                $linkText = $this->makeUrlLink($object);
-                break;
-            case self::HASHTAG:
-                $linkText = $this->makeHashtagLink($object);
-                break;
-            case self::MENTION:
-                $linkText = $this->makeMentionLink($object);
-                break;
-            default:
-                continue;
-            }
-            $text = mb_substr($text, 0, $object->indices[0]) . $linkText . mb_substr($text, $object->indices[1]);
-        }
-        return $text;
-    }
-
-    function makeUrlLink($object)
-    {
-        return "<a href='{$object->url}' class='extlink'>{$object->url}</a>";
-    }
-
-    function makeHashtagLink($object)
-    {
-        return "#" . self::tagLink($object->text);
-    }
-
-    function makeMentionLink($object)
-    {
-        return "@".self::atLink($object->screen_name, $object->name);
-    }
-
-    static function tagLink($tag)
-    {
-        return "<a href='https://twitter.com/search?q=%23{$tag}' class='hashtag'>{$tag}</a>";
-    }
-
-    static function atLink($screenName, $fullName=null)
-    {
-        if (!empty($fullName)) {
-            return "<a href='http://twitter.com/{$screenName}' title='{$fullName}'>{$screenName}</a>";
-        } else {
-            return "<a href='http://twitter.com/{$screenName}'>{$screenName}</a>";
-        }
-    }
-
-    function saveStatusMentions($notice, $status)
-    {
-        $mentions = array();
-
-        if (empty($status->entities) || empty($status->entities->user_mentions)) {
-            return;
-        }
-
-        foreach ($status->entities->user_mentions as $mention) {
-            $flink = Foreign_link::getByForeignID($mention->id, TWITTER_SERVICE);
-            if (!empty($flink)) {
-                $user = User::staticGet('id', $flink->user_id);
-                if (!empty($user)) {
-                    $reply = new Reply();
-                    $reply->notice_id  = $notice->id;
-                    $reply->profile_id = $user->id;
-                    common_log(LOG_INFO, __METHOD__ . ": saving reply: notice {$notice->id} to profile {$user->id}");
-                    $id = $reply->insert();
-                }
-            }
-        }
-    }
 }
 
 $id    = null;
diff --git a/plugins/TwitterBridge/twitterimport.php b/plugins/TwitterBridge/twitterimport.php
new file mode 100644
index 000000000..1b2d39530
--- /dev/null
+++ b/plugins/TwitterBridge/twitterimport.php
@@ -0,0 +1,651 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * 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  Plugin
+ * @package   StatusNet
+ * @author    Zach Copley <zach@status.net>
+ * @author    Julien C <chaumond@gmail.com>
+ * @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);
+}
+
+require_once INSTALLDIR . '/plugins/TwitterBridge/twitter.php';
+
+/**
+ * Encapsulation of the Twitter status -> notice incoming bridge import.
+ * Is used by both the polling twitterstatusfetcher.php daemon, and the
+ * in-progress streaming import.
+ *
+ * @category Plugin
+ * @package  StatusNet
+ * @author   Zach Copley <zach@status.net>
+ * @author   Julien C <chaumond@gmail.com>
+ * @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/
+ * @link     http://twitter.com/
+ */
+class TwitterImport
+{
+    public function importStatus($status)
+    {
+        // Hacktastic: filter out stuff coming from this StatusNet
+        $source = mb_strtolower(common_config('integration', 'source'));
+
+        if (preg_match("/$source/", mb_strtolower($status->source))) {
+            common_debug($this->name() . ' - Skipping import of status ' .
+                         $status->id . ' with source ' . $source);
+            continue;
+        }
+
+        // Don't save it if the user is protected
+        // FIXME: save it but treat it as private
+        if ($status->user->protected) {
+            continue;
+        }
+
+        $notice = $this->saveStatus($status);
+
+        return $notice;
+    }
+
+    function name()
+    {
+        return get_class($this);
+    }
+
+    function saveStatus($status)
+    {
+        $profile = $this->ensureProfile($status->user);
+
+        if (empty($profile)) {
+            common_log(LOG_ERR, $this->name() .
+                ' - Problem saving notice. No associated Profile.');
+            return null;
+        }
+
+        $statusUri = $this->makeStatusURI($status->user->screen_name, $status->id);
+
+        // check to see if we've already imported the status
+        $n2s = Notice_to_status::staticGet('status_id', $status->id);
+
+        if (!empty($n2s)) {
+            common_log(
+                LOG_INFO,
+                $this->name() .
+                " - Ignoring duplicate import: {$status->id}"
+            );
+            return Notice::staticGet('id', $n2s->notice_id);
+        }
+
+        // If it's a retweet, save it as a repeat!
+        if (!empty($status->retweeted_status)) {
+            common_log(LOG_INFO, "Status {$status->id} is a retweet of {$status->retweeted_status->id}.");
+            $original = $this->saveStatus($status->retweeted_status);
+            if (empty($original)) {
+                return null;
+            } else {
+                $author = $original->getProfile();
+                // TRANS: Message used to repeat a notice. RT is the abbreviation of 'retweet'.
+                // TRANS: %1$s is the repeated user's name, %2$s is the repeated notice.
+                $content = sprintf(_m('RT @%1$s %2$s'),
+                                   $author->nickname,
+                                   $original->content);
+
+                if (Notice::contentTooLong($content)) {
+                    $contentlimit = Notice::maxContent();
+                    $content = mb_substr($content, 0, $contentlimit - 4) . ' ...';
+                }
+
+                $repeat = Notice::saveNew($profile->id,
+                                          $content,
+                                          'twitter',
+                                          array('repeat_of' => $original->id,
+                                                'uri' => $statusUri,
+                                                'is_local' => Notice::GATEWAY));
+                common_log(LOG_INFO, "Saved {$repeat->id} as a repeat of {$original->id}");
+                Notice_to_status::saveNew($repeat->id, $status->id);
+                return $repeat;
+            }
+        }
+
+        $notice = new Notice();
+
+        $notice->profile_id = $profile->id;
+        $notice->uri        = $statusUri;
+        $notice->url        = $statusUri;
+        $notice->created    = strftime(
+            '%Y-%m-%d %H:%M:%S',
+            strtotime($status->created_at)
+        );
+
+        $notice->source     = 'twitter';
+
+        $notice->reply_to   = null;
+
+        if (!empty($status->in_reply_to_status_id)) {
+            common_log(LOG_INFO, "Status {$status->id} is a reply to status {$status->in_reply_to_status_id}");
+            $n2s = Notice_to_status::staticGet('status_id', $status->in_reply_to_status_id);
+            if (empty($n2s)) {
+                common_log(LOG_INFO, "Couldn't find local notice for status {$status->in_reply_to_status_id}");
+            } else {
+                $reply = Notice::staticGet('id', $n2s->notice_id);
+                if (empty($reply)) {
+                    common_log(LOG_INFO, "Couldn't find local notice for status {$status->in_reply_to_status_id}");
+                } else {
+                    common_log(LOG_INFO, "Found local notice {$reply->id} for status {$status->in_reply_to_status_id}");
+                    $notice->reply_to     = $reply->id;
+                    $notice->conversation = $reply->conversation;
+                }
+            }
+        }
+
+        if (empty($notice->conversation)) {
+            $conv = Conversation::create();
+            $notice->conversation = $conv->id;
+            common_log(LOG_INFO, "No known conversation for status {$status->id} so making a new one {$conv->id}.");
+        }
+
+        $notice->is_local   = Notice::GATEWAY;
+
+        $notice->content  = html_entity_decode($status->text, ENT_QUOTES, 'UTF-8');
+        $notice->rendered = $this->linkify($status);
+
+        if (Event::handle('StartNoticeSave', array(&$notice))) {
+
+            $id = $notice->insert();
+
+            if (!$id) {
+                common_log_db_error($notice, 'INSERT', __FILE__);
+                common_log(LOG_ERR, $this->name() .
+                    ' - Problem saving notice.');
+            }
+
+            Event::handle('EndNoticeSave', array($notice));
+        }
+
+        Notice_to_status::saveNew($notice->id, $status->id);
+
+        $this->saveStatusMentions($notice, $status);
+
+        $notice->blowOnInsert();
+
+        return $notice;
+    }
+
+    /**
+     * Make an URI for a status.
+     *
+     * @param object $status status object
+     *
+     * @return string URI
+     */
+    function makeStatusURI($username, $id)
+    {
+        return 'http://twitter.com/'
+          . $username
+          . '/status/'
+          . $id;
+    }
+
+
+    /**
+     * Look up a Profile by profileurl field.  Profile::staticGet() was
+     * not working consistently.
+     *
+     * @param string $nickname   local nickname of the Twitter user
+     * @param string $profileurl the profile url
+     *
+     * @return mixed value the first Profile with that url, or null
+     */
+    function getProfileByUrl($nickname, $profileurl)
+    {
+        $profile = new Profile();
+        $profile->nickname = $nickname;
+        $profile->profileurl = $profileurl;
+        $profile->limit(1);
+
+        if ($profile->find()) {
+            $profile->fetch();
+            return $profile;
+        }
+
+        return null;
+    }
+
+    /**
+     * Check to see if this Twitter status has already been imported
+     *
+     * @param Profile $profile   Twitter user's local profile
+     * @param string  $statusUri URI of the status on Twitter
+     *
+     * @return mixed value a matching Notice or null
+     */
+    function checkDupe($profile, $statusUri)
+    {
+        $notice = new Notice();
+        $notice->uri = $statusUri;
+        $notice->profile_id = $profile->id;
+        $notice->limit(1);
+
+        if ($notice->find()) {
+            $notice->fetch();
+            return $notice;
+        }
+
+        return null;
+    }
+
+    function ensureProfile($user)
+    {
+        // check to see if there's already a profile for this user
+        $profileurl = 'http://twitter.com/' . $user->screen_name;
+        $profile = $this->getProfileByUrl($user->screen_name, $profileurl);
+
+        if (!empty($profile)) {
+            common_debug($this->name() .
+                         " - Profile for $profile->nickname found.");
+
+            // Check to see if the user's Avatar has changed
+
+            $this->checkAvatar($user, $profile);
+            return $profile;
+
+        } else {
+            common_debug($this->name() . ' - Adding profile and remote profile ' .
+                         "for Twitter user: $profileurl.");
+
+            $profile = new Profile();
+            $profile->query("BEGIN");
+
+            $profile->nickname = $user->screen_name;
+            $profile->fullname = $user->name;
+            $profile->homepage = $user->url;
+            $profile->bio = $user->description;
+            $profile->location = $user->location;
+            $profile->profileurl = $profileurl;
+            $profile->created = common_sql_now();
+
+            try {
+                $id = $profile->insert();
+            } catch(Exception $e) {
+                common_log(LOG_WARNING, $this->name() . ' Couldn\'t insert profile - ' . $e->getMessage());
+            }
+
+            if (empty($id)) {
+                common_log_db_error($profile, 'INSERT', __FILE__);
+                $profile->query("ROLLBACK");
+                return false;
+            }
+
+            // check for remote profile
+
+            $remote_pro = Remote_profile::staticGet('uri', $profileurl);
+
+            if (empty($remote_pro)) {
+                $remote_pro = new Remote_profile();
+
+                $remote_pro->id = $id;
+                $remote_pro->uri = $profileurl;
+                $remote_pro->created = common_sql_now();
+
+                try {
+                    $rid = $remote_pro->insert();
+                } catch (Exception $e) {
+                    common_log(LOG_WARNING, $this->name() . ' Couldn\'t save remote profile - ' . $e->getMessage());
+                }
+
+                if (empty($rid)) {
+                    common_log_db_error($profile, 'INSERT', __FILE__);
+                    $profile->query("ROLLBACK");
+                    return false;
+                }
+            }
+
+            $profile->query("COMMIT");
+
+            $this->saveAvatars($user, $id);
+
+            return $profile;
+        }
+    }
+
+    function checkAvatar($twitter_user, $profile)
+    {
+        global $config;
+
+        $path_parts = pathinfo($twitter_user->profile_image_url);
+
+        $newname = 'Twitter_' . $twitter_user->id . '_' .
+            $path_parts['basename'];
+
+        $oldname = $profile->getAvatar(48)->filename;
+
+        if ($newname != $oldname) {
+            common_debug($this->name() . ' - Avatar for Twitter user ' .
+                         "$profile->nickname has changed.");
+            common_debug($this->name() . " - old: $oldname new: $newname");
+
+            $this->updateAvatars($twitter_user, $profile);
+        }
+
+        if ($this->missingAvatarFile($profile)) {
+            common_debug($this->name() . ' - Twitter user ' .
+                         $profile->nickname .
+                         ' is missing one or more local avatars.');
+            common_debug($this->name() ." - old: $oldname new: $newname");
+
+            $this->updateAvatars($twitter_user, $profile);
+        }
+    }
+
+    function updateAvatars($twitter_user, $profile) {
+
+        global $config;
+
+        $path_parts = pathinfo($twitter_user->profile_image_url);
+
+        $img_root = substr($path_parts['basename'], 0, -11);
+        $ext = $path_parts['extension'];
+        $mediatype = $this->getMediatype($ext);
+
+        foreach (array('mini', 'normal', 'bigger') as $size) {
+            $url = $path_parts['dirname'] . '/' .
+                $img_root . '_' . $size . ".$ext";
+            $filename = 'Twitter_' . $twitter_user->id . '_' .
+                $img_root . "_$size.$ext";
+
+            $this->updateAvatar($profile->id, $size, $mediatype, $filename);
+            $this->fetchAvatar($url, $filename);
+        }
+    }
+
+    function missingAvatarFile($profile) {
+        foreach (array(24, 48, 73) as $size) {
+            $filename = $profile->getAvatar($size)->filename;
+            $avatarpath = Avatar::path($filename);
+            if (file_exists($avatarpath) == FALSE) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    function getMediatype($ext)
+    {
+        $mediatype = null;
+
+        switch (strtolower($ext)) {
+        case 'jpg':
+            $mediatype = 'image/jpg';
+            break;
+        case 'gif':
+            $mediatype = 'image/gif';
+            break;
+        default:
+            $mediatype = 'image/png';
+        }
+
+        return $mediatype;
+    }
+
+    function saveAvatars($user, $id)
+    {
+        global $config;
+
+        $path_parts = pathinfo($user->profile_image_url);
+        $ext = $path_parts['extension'];
+        $end = strlen('_normal' . $ext);
+        $img_root = substr($path_parts['basename'], 0, -($end+1));
+        $mediatype = $this->getMediatype($ext);
+
+        foreach (array('mini', 'normal', 'bigger') as $size) {
+            $url = $path_parts['dirname'] . '/' .
+                $img_root . '_' . $size . ".$ext";
+            $filename = 'Twitter_' . $user->id . '_' .
+                $img_root . "_$size.$ext";
+
+            if ($this->fetchAvatar($url, $filename)) {
+                $this->newAvatar($id, $size, $mediatype, $filename);
+            } else {
+                common_log(LOG_WARNING, $id() .
+                           " - Problem fetching Avatar: $url");
+            }
+        }
+    }
+
+    function updateAvatar($profile_id, $size, $mediatype, $filename) {
+
+        common_debug($this->name() . " - Updating avatar: $size");
+
+        $profile = Profile::staticGet($profile_id);
+
+        if (empty($profile)) {
+            common_debug($this->name() . " - Couldn't get profile: $profile_id!");
+            return;
+        }
+
+        $sizes = array('mini' => 24, 'normal' => 48, 'bigger' => 73);
+        $avatar = $profile->getAvatar($sizes[$size]);
+
+        // Delete the avatar, if present
+        if ($avatar) {
+            $avatar->delete();
+        }
+
+        $this->newAvatar($profile->id, $size, $mediatype, $filename);
+    }
+
+    function newAvatar($profile_id, $size, $mediatype, $filename)
+    {
+        global $config;
+
+        $avatar = new Avatar();
+        $avatar->profile_id = $profile_id;
+
+        switch($size) {
+        case 'mini':
+            $avatar->width  = 24;
+            $avatar->height = 24;
+            break;
+        case 'normal':
+            $avatar->width  = 48;
+            $avatar->height = 48;
+            break;
+        default:
+            // Note: Twitter's big avatars are a different size than
+            // StatusNet's (StatusNet's = 96)
+            $avatar->width  = 73;
+            $avatar->height = 73;
+        }
+
+        $avatar->original = 0; // we don't have the original
+        $avatar->mediatype = $mediatype;
+        $avatar->filename = $filename;
+        $avatar->url = Avatar::url($filename);
+
+        $avatar->created = common_sql_now();
+
+        try {
+            $id = $avatar->insert();
+        } catch (Exception $e) {
+            common_log(LOG_WARNING, $this->name() . ' Couldn\'t insert avatar - ' . $e->getMessage());
+        }
+
+        if (empty($id)) {
+            common_log_db_error($avatar, 'INSERT', __FILE__);
+            return null;
+        }
+
+        common_debug($this->name() .
+                     " - Saved new $size avatar for $profile_id.");
+
+        return $id;
+    }
+
+    /**
+     * Fetch a remote avatar image and save to local storage.
+     *
+     * @param string $url avatar source URL
+     * @param string $filename bare local filename for download
+     * @return bool true on success, false on failure
+     */
+    function fetchAvatar($url, $filename)
+    {
+        common_debug($this->name() . " - Fetching Twitter avatar: $url");
+
+        $request = HTTPClient::start();
+        $response = $request->get($url);
+        if ($response->isOk()) {
+            $avatarfile = Avatar::path($filename);
+            $ok = file_put_contents($avatarfile, $response->getBody());
+            if (!$ok) {
+                common_log(LOG_WARNING, $this->name() .
+                           " - Couldn't open file $filename");
+                return false;
+            }
+        } else {
+            return false;
+        }
+
+        return true;
+    }
+
+    const URL = 1;
+    const HASHTAG = 2;
+    const MENTION = 3;
+
+    function linkify($status)
+    {
+        $text = $status->text;
+
+        if (empty($status->entities)) {
+            common_log(LOG_WARNING, "No entities data for {$status->id}; trying to fake up links ourselves.");
+            $text = common_replace_urls_callback($text, 'common_linkify');
+            $text = preg_replace('/(^|\&quot\;|\'|\(|\[|\{|\s+)#([\pL\pN_\-\.]{1,64})/e', "'\\1#'.TwitterStatusFetcher::tagLink('\\2')", $text);
+            $text = preg_replace('/(^|\s+)@([a-z0-9A-Z_]{1,64})/e', "'\\1@'.TwitterStatusFetcher::atLink('\\2')", $text);
+            return $text;
+        }
+
+        // Move all the entities into order so we can
+        // replace them in reverse order and thus
+        // not mess up their indices
+
+        $toReplace = array();
+
+        if (!empty($status->entities->urls)) {
+            foreach ($status->entities->urls as $url) {
+                $toReplace[$url->indices[0]] = array(self::URL, $url);
+            }
+        }
+
+        if (!empty($status->entities->hashtags)) {
+            foreach ($status->entities->hashtags as $hashtag) {
+                $toReplace[$hashtag->indices[0]] = array(self::HASHTAG, $hashtag);
+            }
+        }
+
+        if (!empty($status->entities->user_mentions)) {
+            foreach ($status->entities->user_mentions as $mention) {
+                $toReplace[$mention->indices[0]] = array(self::MENTION, $mention);
+            }
+        }
+
+        // sort in reverse order by key
+
+        krsort($toReplace);
+
+        foreach ($toReplace as $part) {
+            list($type, $object) = $part;
+            switch($type) {
+            case self::URL:
+                $linkText = $this->makeUrlLink($object);
+                break;
+            case self::HASHTAG:
+                $linkText = $this->makeHashtagLink($object);
+                break;
+            case self::MENTION:
+                $linkText = $this->makeMentionLink($object);
+                break;
+            default:
+                continue;
+            }
+            $text = mb_substr($text, 0, $object->indices[0]) . $linkText . mb_substr($text, $object->indices[1]);
+        }
+        return $text;
+    }
+
+    function makeUrlLink($object)
+    {
+        return "<a href='{$object->url}' class='extlink'>{$object->url}</a>";
+    }
+
+    function makeHashtagLink($object)
+    {
+        return "#" . self::tagLink($object->text);
+    }
+
+    function makeMentionLink($object)
+    {
+        return "@".self::atLink($object->screen_name, $object->name);
+    }
+
+    static function tagLink($tag)
+    {
+        return "<a href='https://twitter.com/search?q=%23{$tag}' class='hashtag'>{$tag}</a>";
+    }
+
+    static function atLink($screenName, $fullName=null)
+    {
+        if (!empty($fullName)) {
+            return "<a href='http://twitter.com/{$screenName}' title='{$fullName}'>{$screenName}</a>";
+        } else {
+            return "<a href='http://twitter.com/{$screenName}'>{$screenName}</a>";
+        }
+    }
+
+    function saveStatusMentions($notice, $status)
+    {
+        $mentions = array();
+
+        if (empty($status->entities) || empty($status->entities->user_mentions)) {
+            return;
+        }
+
+        foreach ($status->entities->user_mentions as $mention) {
+            $flink = Foreign_link::getByForeignID($mention->id, TWITTER_SERVICE);
+            if (!empty($flink)) {
+                $user = User::staticGet('id', $flink->user_id);
+                if (!empty($user)) {
+                    $reply = new Reply();
+                    $reply->notice_id  = $notice->id;
+                    $reply->profile_id = $user->id;
+                    common_log(LOG_INFO, __METHOD__ . ": saving reply: notice {$notice->id} to profile {$user->id}");
+                    $id = $reply->insert();
+                }
+            }
+        }
+    }
+}
\ No newline at end of file