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piwigo_ynh/sources/admin/include/plugins.class.php
2014-07-06 13:21:10 +02:00

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PHP

<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based photo gallery |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2014 Piwigo Team http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify |
// | it under the terms of the GNU General Public License as published by |
// | the Free Software Foundation |
// | |
// | 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 |
// | General Public License for more details. |
// | |
// | You should have received a copy of the GNU General Public License |
// | along with this program; if not, write to the Free Software |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA. |
// +-----------------------------------------------------------------------+
/**
* class DummyPlugin_maintain
* used when a plugin uses the old procedural declaration of maintenance methods
*/
class DummyPlugin_maintain extends PluginMaintain
{
function install($plugin_version, &$errors=array())
{
if (is_callable('plugin_install'))
{
return plugin_install($this->plugin_id, $plugin_version, $errors);
}
}
function activate($plugin_version, &$errors=array())
{
if (is_callable('plugin_activate'))
{
return plugin_activate($this->plugin_id, $plugin_version, $errors);
}
}
function deactivate()
{
if (is_callable('plugin_deactivate'))
{
return plugin_deactivate($this->plugin_id);
}
}
function uninstall()
{
if (is_callable('plugin_uninstall'))
{
return plugin_uninstall($this->plugin_id);
}
}
}
class plugins
{
var $fs_plugins = array();
var $db_plugins_by_id = array();
var $server_plugins = array();
var $default_plugins = array('LocalFilesEditor', 'language_switch', 'c13y_upgrade', 'admin_multi_view');
/**
* Initialize $fs_plugins and $db_plugins_by_id
*/
function plugins()
{
$this->get_fs_plugins();
foreach (get_db_plugins() as $db_plugin)
{
$this->db_plugins_by_id[$db_plugin['id']] = $db_plugin;
}
}
/**
* Returns the maintain class of a plugin
* or build a new class with the procedural methods
* @param string $plugin_id
*/
private static function build_maintain_class($plugin_id)
{
$file_to_include = PHPWG_PLUGINS_PATH . $plugin_id . '/maintain.inc.php';
$classname = $plugin_id.'_maintain';
if (file_exists($file_to_include))
{
include_once($file_to_include);
if (class_exists($classname))
{
$plugin_maintain = new $classname($plugin_id);
}
else
{
$plugin_maintain = new DummyPlugin_maintain($plugin_id);
}
}
else
{
$plugin_maintain = new DummyPlugin_maintain($plugin_id);
}
return $plugin_maintain;
}
/**
* Perform requested actions
* @param string - action
* @param string - plugin id
* @param array - errors
*/
function perform_action($action, $plugin_id)
{
if (isset($this->db_plugins_by_id[$plugin_id]))
{
$crt_db_plugin = $this->db_plugins_by_id[$plugin_id];
}
$plugin_maintain = self::build_maintain_class($plugin_id);
$errors = array();
switch ($action)
{
case 'install':
if (!empty($crt_db_plugin) or !isset($this->fs_plugins[$plugin_id]))
{
break;
}
$plugin_maintain->install($this->fs_plugins[$plugin_id]['version'], $errors);
if (empty($errors))
{
$query = '
INSERT INTO '. PLUGINS_TABLE .' (id,version)
VALUES (\''. $plugin_id .'\', \''. $this->fs_plugins[$plugin_id]['version'] .'\')
;';
pwg_query($query);
}
break;
case 'activate':
if (!isset($crt_db_plugin))
{
$errors = $this->perform_action('install', $plugin_id);
list($crt_db_plugin) = get_db_plugins(null, $plugin_id);
load_conf_from_db();
}
elseif ($crt_db_plugin['state'] == 'active')
{
break;
}
if (empty($errors))
{
$plugin_maintain->activate($crt_db_plugin['version'], $errors);
}
if (empty($errors))
{
$query = '
UPDATE '. PLUGINS_TABLE .'
SET state=\'active\',
version=\''. $this->fs_plugins[$plugin_id]['version'] .'\'
WHERE id=\''. $plugin_id .'\'
;';
pwg_query($query);
}
break;
case 'deactivate':
if (!isset($crt_db_plugin) or $crt_db_plugin['state'] != 'active')
{
break;
}
$query = '
UPDATE '. PLUGINS_TABLE .'
SET state=\'inactive\'
WHERE id=\''. $plugin_id .'\'
;';
pwg_query($query);
$plugin_maintain->deactivate();
break;
case 'uninstall':
if (!isset($crt_db_plugin))
{
break;
}
if ($crt_db_plugin['state'] == 'active')
{
$this->perform_action('deactivate', $plugin_id);
}
$query = '
DELETE FROM '. PLUGINS_TABLE .'
WHERE id=\''. $plugin_id .'\'
;';
pwg_query($query);
$plugin_maintain->uninstall();
break;
case 'restore':
$this->perform_action('uninstall', $plugin_id);
unset($this->db_plugins_by_id[$plugin_id]);
$errors = $this->perform_action('activate', $plugin_id);
break;
case 'delete':
if (!empty($crt_db_plugin))
{
$this->perform_action('uninstall', $plugin_id);
}
if (!isset($this->fs_plugins[$plugin_id]))
{
break;
}
deltree(PHPWG_PLUGINS_PATH . $plugin_id, PHPWG_PLUGINS_PATH . 'trash');
break;
}
return $errors;
}
/**
* Get plugins defined in the plugin directory
*/
function get_fs_plugins()
{
$dir = opendir(PHPWG_PLUGINS_PATH);
while ($file = readdir($dir))
{
if ($file!='.' and $file!='..')
{
$path = PHPWG_PLUGINS_PATH.$file;
if (is_dir($path) and !is_link($path)
and preg_match('/^[a-zA-Z0-9-_]+$/', $file )
and file_exists($path.'/main.inc.php')
)
{
$plugin = array(
'name'=>$file,
'version'=>'0',
'uri'=>'',
'description'=>'',
'author'=>'',
);
$plg_data = implode( '', file($path.'/main.inc.php') );
if ( preg_match("|Plugin Name: (.*)|", $plg_data, $val) )
{
$plugin['name'] = trim( $val[1] );
}
if (preg_match("|Version: (.*)|", $plg_data, $val))
{
$plugin['version'] = trim($val[1]);
}
if ( preg_match("|Plugin URI: (.*)|", $plg_data, $val) )
{
$plugin['uri'] = trim($val[1]);
}
if ($desc = load_language('description.txt', $path.'/', array('return' => true)))
{
$plugin['description'] = trim($desc);
}
elseif ( preg_match("|Description: (.*)|", $plg_data, $val) )
{
$plugin['description'] = trim($val[1]);
}
if ( preg_match("|Author: (.*)|", $plg_data, $val) )
{
$plugin['author'] = trim($val[1]);
}
if ( preg_match("|Author URI: (.*)|", $plg_data, $val) )
{
$plugin['author uri'] = trim($val[1]);
}
if (!empty($plugin['uri']) and strpos($plugin['uri'] , 'extension_view.php?eid='))
{
list( , $extension) = explode('extension_view.php?eid=', $plugin['uri']);
if (is_numeric($extension)) $plugin['extension'] = $extension;
}
// IMPORTANT SECURITY !
$plugin = array_map('htmlspecialchars', $plugin);
$this->fs_plugins[$file] = $plugin;
}
}
}
closedir($dir);
}
/**
* Sort fs_plugins
*/
function sort_fs_plugins($order='name')
{
switch ($order)
{
case 'name':
uasort($this->fs_plugins, 'name_compare');
break;
case 'status':
$this->sort_plugins_by_state();
break;
case 'author':
uasort($this->fs_plugins, array($this, 'plugin_author_compare'));
break;
case 'id':
uksort($this->fs_plugins, 'strcasecmp');
break;
}
}
// Retrieve PEM versions
function get_versions_to_check($version=PHPWG_VERSION)
{
global $conf;
$versions_to_check = array();
$url = PEM_URL . '/api/get_version_list.php?category_id='. $conf['pem_plugins_category'] .'&format=php';
if (fetchRemote($url, $result) and $pem_versions = @unserialize($result))
{
if (!preg_match('/^\d+\.\d+\.\d+$/', $version))
{
$version = $pem_versions[0]['name'];
}
$branch = get_branch_from_version($version);
foreach ($pem_versions as $pem_version)
{
if (strpos($pem_version['name'], $branch) === 0)
{
$versions_to_check[] = $pem_version['id'];
}
}
}
return $versions_to_check;
}
/**
* Retrieve PEM server datas to $server_plugins
*/
function get_server_plugins($new=false)
{
global $user, $conf;
$versions_to_check = $this->get_versions_to_check();
if (empty($versions_to_check))
{
return false;
}
// Plugins to check
$plugins_to_check = array();
foreach($this->fs_plugins as $fs_plugin)
{
if (isset($fs_plugin['extension']))
{
$plugins_to_check[] = $fs_plugin['extension'];
}
}
// Retrieve PEM plugins infos
$url = PEM_URL . '/api/get_revision_list.php';
$get_data = array(
'category_id' => $conf['pem_plugins_category'],
'format' => 'php',
'last_revision_only' => 'true',
'version' => implode(',', $versions_to_check),
'lang' => substr($user['language'], 0, 2),
'get_nb_downloads' => 'true',
);
if (!empty($plugins_to_check))
{
if ($new)
{
$get_data['extension_exclude'] = implode(',', $plugins_to_check);
}
else
{
$get_data['extension_include'] = implode(',', $plugins_to_check);
}
}
if (fetchRemote($url, $result, $get_data))
{
$pem_plugins = @unserialize($result);
if (!is_array($pem_plugins))
{
return false;
}
foreach ($pem_plugins as $plugin)
{
$this->server_plugins[$plugin['extension_id']] = $plugin;
}
return true;
}
return false;
}
function get_incompatible_plugins($actualize=false)
{
if (isset($_SESSION['incompatible_plugins']) and !$actualize
and $_SESSION['incompatible_plugins']['~~expire~~'] > time())
{
return $_SESSION['incompatible_plugins'];
}
$_SESSION['incompatible_plugins'] = array('~~expire~~' => time() + 300);
$versions_to_check = $this->get_versions_to_check();
if (empty($versions_to_check))
{
return false;
}
global $conf;
// Plugins to check
$plugins_to_check = array();
foreach($this->fs_plugins as $fs_plugin)
{
if (isset($fs_plugin['extension']))
{
$plugins_to_check[] = $fs_plugin['extension'];
}
}
// Retrieve PEM plugins infos
$url = PEM_URL . '/api/get_revision_list.php';
$get_data = array(
'category_id' => $conf['pem_plugins_category'],
'format' => 'php',
'version' => implode(',', $versions_to_check),
'extension_include' => implode(',', $plugins_to_check),
);
if (fetchRemote($url, $result, $get_data))
{
$pem_plugins = @unserialize($result);
if (!is_array($pem_plugins))
{
return false;
}
$server_plugins = array();
foreach ($pem_plugins as $plugin)
{
if (!isset($server_plugins[$plugin['extension_id']]))
{
$server_plugins[$plugin['extension_id']] = array();
}
$server_plugins[$plugin['extension_id']][] = $plugin['revision_name'];
}
foreach ($this->fs_plugins as $plugin_id => $fs_plugin)
{
if (isset($fs_plugin['extension'])
and !in_array($plugin_id, $this->default_plugins)
and $fs_plugin['version'] != 'auto'
and (!isset($server_plugins[$fs_plugin['extension']]) or !in_array($fs_plugin['version'], $server_plugins[$fs_plugin['extension']])))
{
$_SESSION['incompatible_plugins'][$plugin_id] = $fs_plugin['version'];
}
}
return $_SESSION['incompatible_plugins'];
}
return false;
}
/**
* Sort $server_plugins
*/
function sort_server_plugins($order='date')
{
switch ($order)
{
case 'date':
krsort($this->server_plugins);
break;
case 'revision':
usort($this->server_plugins, array($this, 'extension_revision_compare'));
break;
case 'name':
uasort($this->server_plugins, array($this, 'extension_name_compare'));
break;
case 'author':
uasort($this->server_plugins, array($this, 'extension_author_compare'));
break;
case 'downloads':
usort($this->server_plugins, array($this, 'extension_downloads_compare'));
break;
}
}
/**
* Extract plugin files from archive
* @param string - install or upgrade
* @param string - archive URL
* @param string - plugin id or extension id
*/
function extract_plugin_files($action, $revision, $dest)
{
if ($archive = tempnam( PHPWG_PLUGINS_PATH, 'zip'))
{
$url = PEM_URL . '/download.php';
$get_data = array(
'rid' => $revision,
'origin' => 'piwigo_'.$action,
);
if ($handle = @fopen($archive, 'wb') and fetchRemote($url, $handle, $get_data))
{
fclose($handle);
include_once(PHPWG_ROOT_PATH.'admin/include/pclzip.lib.php');
$zip = new PclZip($archive);
if ($list = $zip->listContent())
{
foreach ($list as $file)
{
// we search main.inc.php in archive
if (basename($file['filename']) == 'main.inc.php'
and (!isset($main_filepath)
or strlen($file['filename']) < strlen($main_filepath)))
{
$main_filepath = $file['filename'];
}
}
if (isset($main_filepath))
{
$root = dirname($main_filepath); // main.inc.php path in archive
if ($action == 'upgrade')
{
$extract_path = PHPWG_PLUGINS_PATH . $dest;
}
else
{
$extract_path = PHPWG_PLUGINS_PATH
. ($root == '.' ? 'extension_' . $dest : basename($root));
}
if($result = $zip->extract(PCLZIP_OPT_PATH, $extract_path,
PCLZIP_OPT_REMOVE_PATH, $root,
PCLZIP_OPT_REPLACE_NEWER))
{
foreach ($result as $file)
{
if ($file['stored_filename'] == $main_filepath)
{
$status = $file['status'];
break;
}
}
if (file_exists($extract_path.'/obsolete.list')
and $old_files = file($extract_path.'/obsolete.list', FILE_IGNORE_NEW_LINES)
and !empty($old_files))
{
$old_files[] = 'obsolete.list';
foreach($old_files as $old_file)
{
$path = $extract_path.'/'.$old_file;
if (is_file($path))
{
@unlink($path);
}
elseif (is_dir($path))
{
deltree($path, PHPWG_PLUGINS_PATH . 'trash');
}
}
}
}
else $status = 'extract_error';
}
else $status = 'archive_error';
}
else $status = 'archive_error';
}
else $status = 'dl_archive_error';
}
else $status = 'temp_path_error';
@unlink($archive);
return $status;
}
function get_merged_extensions($version=PHPWG_VERSION)
{
$file = PHPWG_ROOT_PATH.'install/obsolete_extensions.list';
$merged_extensions = array();
if (file_exists($file) and $obsolete_ext = file($file, FILE_IGNORE_NEW_LINES) and !empty($obsolete_ext))
{
foreach ($obsolete_ext as $ext)
{
if (preg_match('/^(\d+) ?: ?(.*?)$/', $ext, $matches))
{
$merged_extensions[$matches[1]] = $matches[2];
}
}
}
return $merged_extensions;
}
/**
* Sort functions
*/
function extension_revision_compare($a, $b)
{
if ($a['revision_date'] < $b['revision_date']) return 1;
else return -1;
}
function extension_name_compare($a, $b)
{
return strcmp(strtolower($a['extension_name']), strtolower($b['extension_name']));
}
function extension_author_compare($a, $b)
{
$r = strcasecmp($a['author_name'], $b['author_name']);
if ($r == 0) return $this->extension_name_compare($a, $b);
else return $r;
}
function plugin_author_compare($a, $b)
{
$r = strcasecmp($a['author'], $b['author']);
if ($r == 0) return name_compare($a, $b);
else return $r;
}
function extension_downloads_compare($a, $b)
{
if ($a['extension_nb_downloads'] < $b['extension_nb_downloads']) return 1;
else return -1;
}
function sort_plugins_by_state()
{
uasort($this->fs_plugins, 'name_compare');
$active_plugins = array();
$inactive_plugins = array();
$not_installed = array();
foreach($this->fs_plugins as $plugin_id => $plugin)
{
if (isset($this->db_plugins_by_id[$plugin_id]))
{
$this->db_plugins_by_id[$plugin_id]['state'] == 'active' ?
$active_plugins[$plugin_id] = $plugin : $inactive_plugins[$plugin_id] = $plugin;
}
else
{
$not_installed[$plugin_id] = $plugin;
}
}
$this->fs_plugins = $active_plugins + $inactive_plugins + $not_installed;
}
}
?>