Aleksander Machniak
2013-06-13 f0398c87d9bd472d23b6dfce6943d97fbf9fabf5
Use rcube_cache class to store attachments in database.
Add options to configure TTL and cache type.
1 files added
2 files modified
134 ■■■■ changed files
plugins/database_attachments/config.inc.php.dist 12 ●●●●● patch | view | raw | blame | history
plugins/database_attachments/database_attachments.php 116 ●●●● patch | view | raw | blame | history
plugins/database_attachments/package.xml 6 ●●●● patch | view | raw | blame | history
plugins/database_attachments/config.inc.php.dist
New file
@@ -0,0 +1,12 @@
<?php
// By default this plugin stores attachments in filesystem
// and copies them into sql database.
// You can change it to use 'memcache' or 'apc'.
$rcmail_config['database_attachments_cache'] = 'db';
// Attachment data expires after specied TTL time in seconds (max.2592000).
// Default is 12 hours.
$rcmail_config['database_attachments_cache_ttl'] = 12 * 60 * 60;
?>
plugins/database_attachments/database_attachments.php
@@ -1,6 +1,6 @@
<?php
/**
 * Filesystem Attachments
 * Database Attachments
 *
 * This plugin which provides database backed storage for temporary
 * attachment file handling.  The primary advantage of this plugin
@@ -16,18 +16,11 @@
require_once('plugins/filesystem_attachments/filesystem_attachments.php');
class database_attachments extends filesystem_attachments
{
    // Cache object
    protected $cache;
    // A prefix for the cache key used in the session and in the key field of the cache table
    private $cache_prefix = "db_attach";
    /**
     * Helper method to generate a unique key for the given attachment file
     */
    private function _key($args)
    {
        $uname = $args['path'] ? $args['path'] : $args['name'];
        return  $this->cache_prefix . $args['group'] . md5(mktime() . $uname . $_SESSION['user_id']);
    }
    protected $prefix = "db_attach";
    /**
     * Save a newly uploaded attachment
@@ -35,23 +28,17 @@
    function upload($args)
    {
        $args['status'] = false;
        $rcmail = rcmail::get_instance();
        $key = $this->_key($args);
        $data = file_get_contents($args['path']);
        $cache = $this->get_cache();
        $key   = $this->_key($args);
        $data  = file_get_contents($args['path']);
        if ($data === false)
        if ($data === false) {
            return $args;
        }
        $data = base64_encode($data);
        $status = $rcmail->db->query(
            "INSERT INTO ".$rcmail->db->table_name('cache')
             ." (created, user_id, cache_key, data)"
             ." VALUES (".$rcmail->db->now().", ?, ?, ?)",
            $_SESSION['user_id'],
            $key,
            $data);
        $data   = base64_encode($data);
        $status = $cache->write($key, $data);
        if ($status) {
            $args['id'] = $key;
@@ -68,26 +55,20 @@
    function save($args)
    {
        $args['status'] = false;
        $rcmail = rcmail::get_instance();
        $key = $this->_key($args);
        $cache = $this->get_cache();
        $key   = $this->_key($args);
        if ($args['path']) {
            $args['data'] = file_get_contents($args['path']);
            if ($args['data'] === false)
            if ($args['data'] === false) {
                return $args;
            }
        }
        $data = base64_encode($args['data']);
        $status = $rcmail->db->query(
            "INSERT INTO ".$rcmail->db->table_name('cache')
             ." (created, user_id, cache_key, data)"
             ." VALUES (".$rcmail->db->now().", ?, ?, ?)",
            $_SESSION['user_id'],
            $key,
            $data);
        $data   = base64_encode($args['data']);
        $status = $cache->write($key, $data);
        if ($status) {
            $args['id'] = $key;
@@ -104,13 +85,9 @@
    function remove($args)
    {
        $args['status'] = false;
        $rcmail = rcmail::get_instance();
        $status = $rcmail->db->query(
            "DELETE FROM ".$rcmail->db->table_name('cache')
             ." WHERE user_id = ?"
                ." AND cache_key = ?",
            $_SESSION['user_id'],
            $args['id']);
        $cache  = $this->get_cache();
        $status = $cache->remove($args['id']);
        if ($status) {
            $args['status'] = true;
@@ -135,18 +112,11 @@
     */
    function get($args)
    {
        $rcmail = rcmail::get_instance();
        $cache = $this->get_cache();
        $data  = $cache->read($args['id']);
        $sql_result = $rcmail->db->query(
            "SELECT data"
             ." FROM ".$rcmail->db->table_name('cache')
             ." WHERE user_id=?"
                ." AND cache_key=?",
            $_SESSION['user_id'],
            $args['id']);
        if ($sql_arr = $rcmail->db->fetch_assoc($sql_result)) {
            $args['data'] = base64_decode($sql_arr['data']);
        if ($data) {
            $args['data'] = base64_decode($data);
            $args['status'] = true;
        }
@@ -158,12 +128,36 @@
     */
    function cleanup($args)
    {
        $prefix = $this->cache_prefix . $args['group'];
        $rcmail = rcmail::get_instance();
        $rcmail->db->query(
            "DELETE FROM ".$rcmail->db->table_name('cache')
            ." WHERE user_id = ?"
                ." AND cache_key LIKE '{$prefix}%'",
            $_SESSION['user_id']);
        $cache = $this->get_cache();
        $cache->remove($args['group'], true);
    }
    /**
     * Helper method to generate a unique key for the given attachment file
     */
    protected function _key($args)
    {
        $uname = $args['path'] ? $args['path'] : $args['name'];
        return $args['group'] . md5(mktime() . $uname . $_SESSION['user_id']);
    }
    /**
     * Initialize and return cache object
     */
    protected function get_cache()
    {
        if (!$this->cache) {
            $this->load_config();
            $rcmail = rcube::get_instance();
            $ttl    = 12 * 60 * 60; // default: 12 hours
            $ttl    = $rcmail->config->get('database_attachments_cache_ttl', $ttl);
            $type   = $rcmail->config->get('database_attachments_cache', 'db');
            // Init SQL cache (disable cache data serialization)
            $this->cache = $rcmail->get_cache($this->prefix, 'db', $ttl, false);
        }
        return $this->cache;
    }
}
plugins/database_attachments/package.xml
@@ -5,7 +5,7 @@
    http://pear.php.net/dtd/package-2.0.xsd">
    <name>database_attachments</name>
    <channel>pear.roundcube.net</channel>
    <summary>SQL database storage for uploaded attachments</summary>
    <summary>Database storage for uploaded attachments</summary>
    <description>
        This plugin which provides database backed storage for temporary
        attachment file handling. The primary advantage of this plugin
@@ -24,9 +24,9 @@
        <email>ziba@umich.edu</email>
        <active>yes</active>
    </developer>
    <date>2011-11-21</date>
    <date>2013-06-13</date>
    <version>
        <release>1.0</release>
        <release>1.1</release>
        <api>1.0</api>
    </version>
    <stability>