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Use rcube_cache class to store attachments in database.

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Add options to configure TTL and cache type.
pull/84/head
Aleksander Machniak 11 years ago
parent df9d004cf8
commit f0398c87d9
3 changed files with 71 additions and 65 deletions
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12
plugins/database_attachments/config.inc.php.dist
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@ -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;
?>

118
plugins/database_attachments/database_attachments.php
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@ -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 $prefix = "db_attach";
/**
* Save a newly uploaded attachment
@ -35,23 +28,17 @@ class database_attachments extends filesystem_attachments
function upload($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'] = $key;
@ -68,26 +55,20 @@ class database_attachments extends filesystem_attachments
function save($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'] = $key;
@ -104,13 +85,9 @@ class database_attachments extends filesystem_attachments
function remove($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) {
$args['status'] = true;
@ -135,18 +112,11 @@ class database_attachments extends filesystem_attachments
*/
function get($args)
{
$rcmail = rcmail::get_instance();
$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']);
$cache = $this->get_cache();
$data = $cache->read($args['id']);
if ($data) {
$args['data'] = base64_decode($data);
$args['status'] = true;
}
@ -158,12 +128,36 @@ class database_attachments extends filesystem_attachments
*/
function cleanup($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;
}
}

6
plugins/database_attachments/package.xml
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@ -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>

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