diff options
Diffstat (limited to 'BSF/admin/include/plugins.class.php')
| -rw-r--r-- | BSF/admin/include/plugins.class.php | 484 |
1 files changed, 484 insertions, 0 deletions
diff --git a/BSF/admin/include/plugins.class.php b/BSF/admin/include/plugins.class.php new file mode 100644 index 000000000..de189ffc9 --- /dev/null +++ b/BSF/admin/include/plugins.class.php @@ -0,0 +1,484 @@ +<?php +// +-----------------------------------------------------------------------+ +// | Piwigo - a PHP based picture gallery | +// +-----------------------------------------------------------------------+ +// | Copyright(C) 2008 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 plugins +{ + var $fs_plugins = array(); + var $db_plugins_by_id = array(); + var $server_plugins; + + /** + * 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']] = $db_plugin; + } + } + + /** + * Perform requested actions + * @param string - action + * @param string - plugin id + * @param array - errors + */ + function perform_action($action, $plugin_id) + { + if (isset($this->db_plugins_by_id[$plugin_id])) + { + $crt_db_plugin = $this->db_plugins_by_id[$plugin_id]; + } + $file_to_include = PHPWG_PLUGINS_PATH . $plugin_id . '/maintain.inc.php'; + + $errors = array(); + + switch ($action) + { + case 'install': + if (!empty($crt_db_plugin)) + { + array_push($errors, 'CANNOT INSTALL - ALREADY INSTALLED'); + break; + } + if (!isset($this->fs_plugins[$plugin_id])) + { + array_push($errors, 'CANNOT INSTALL - NO SUCH PLUGIN'); + break; + } + if (file_exists($file_to_include)) + { + include_once($file_to_include); + if (function_exists('plugin_install')) + { + plugin_install($plugin_id, $this->fs_plugins[$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)) + { + array_push($errors, 'CANNOT ACTIVATE - NOT INSTALLED'); + break; + } + if ($crt_db_plugin['state'] != 'inactive') + { + array_push($errors, 'invalid current state ' . $crt_db_plugin['state']); + break; + } + if (file_exists($file_to_include)) + { + include_once($file_to_include); + if (function_exists('plugin_activate')) + { + plugin_activate($plugin_id, $crt_db_plugin['version'], $errors); + } + } + if (empty($errors)) + { + $query = ' +UPDATE ' . PLUGINS_TABLE . ' SET state="active" WHERE id="' . $plugin_id . '"'; + pwg_query($query); + } + break; + + case 'deactivate': + if (!isset($crt_db_plugin)) + { + die ('CANNOT DEACTIVATE - NOT INSTALLED'); + } + if ($crt_db_plugin['state'] != 'active') + { + die('invalid current state ' . $crt_db_plugin['state']); + } + $query = ' +UPDATE ' . PLUGINS_TABLE . ' SET state="inactive" WHERE id="' . $plugin_id . '"'; + pwg_query($query); + if (file_exists($file_to_include)) + { + include_once($file_to_include); + if (function_exists('plugin_deactivate')) + { + plugin_deactivate($plugin_id); + } + } + break; + + case 'uninstall': + if (!isset($crt_db_plugin)) + { + die ('CANNOT UNINSTALL - NOT INSTALLED'); + } + $query = ' +DELETE FROM ' . PLUGINS_TABLE . ' WHERE id="' . $plugin_id . '"'; + pwg_query($query); + if (file_exists($file_to_include)) + { + include_once($file_to_include); + if (function_exists('plugin_uninstall')) + { + plugin_uninstall($plugin_id); + } + } + break; + + case 'delete': + if (!empty($crt_db_plugin)) + { + array_push($errors, 'CANNOT DELETE - PLUGIN IS INSTALLED'); + break; + } + if (!isset($this->fs_plugins[$plugin_id])) + { + array_push($errors, 'CANNOT DELETE - NO SUCH PLUGIN'); + break; + } + if (!$this->deltree(PHPWG_PLUGINS_PATH . $plugin_id)) + { + $this->send_to_trash(PHPWG_PLUGINS_PATH . $plugin_id); + } + 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 ( 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 server datas to $server_plugins + */ + function get_server_plugins($new=false) + { + foreach($this->fs_plugins as $fs_plugin) + { + if (isset($fs_plugin['extension'])) + { + $plugins_to_check[] = $fs_plugin['extension']; + } + } + $url = PEM_URL . '/uptodate.php?version=' . rawurlencode(PHPWG_VERSION) . '&extensions=' . implode(',', $plugins_to_check); + $url .= $new ? '&newext=Plugin' : ''; + + if (!empty($plugins_to_check) and $source = @file_get_contents($url)) + { + $this->server_plugins = @unserialize($source); + } + } + + /** + * 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; + } + } + + /** + * Extract plugin files from archive + * @param string - install or upgrade + * @param string - archive URL + * @param string - destination path + */ + function extract_plugin_files($action, $source, $dest) + { + if ($archive = tempnam( PHPWG_PLUGINS_PATH, 'zip')) + { + if (@copy(PEM_URL . str_replace(' ', '%20', $source), $archive)) + { + include(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; + } + } + } + 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; + } + + /** + * delete $path directory + * @param string - path + */ + function deltree($path) + { + if (is_dir($path)) + { + $fh = opendir($path); + while ($file = readdir($fh)) + { + if ($file != '.' and $file != '..') + { + $pathfile = $path . '/' . $file; + if (is_dir($pathfile)) + { + $this->deltree($pathfile); + } + else + { + @unlink($pathfile); + } + } + } + closedir($fh); + return @rmdir($path); + } + } + + /** + * send $path to trash directory + * @param string - path + */ + function send_to_trash($path) + { + $trash_path = PHPWG_PLUGINS_PATH . 'trash'; + if (!is_dir($trash_path)) + { + @mkdir($trash_path); + $file = @fopen($trash_path . '/.htaccess', 'w'); + @fwrite($file, 'deny from all'); + @fclose($file); + } + while ($r = $trash_path . '/' . md5(uniqid(rand(), true))) + { + if (!is_dir($r)) + { + @rename($path, $r); + break; + } + } + } + + /** + * Sort functions + */ + function plugin_version_compare($a, $b) + { + $pattern = array('/([a-z])/ei', '/\.+/', '/\.\Z|\A\./'); + $replacement = array( "'.'.intval('\\1', 36).'.'", '.', ''); + + $array = preg_replace($pattern, $replacement, array($a['version'], $b['version'])); + + return version_compare($array[0], $array[1], '>='); + } + + function extension_revision_compare($a, $b) + { + if ($a['date'] < $b['date']) return 1; + else return -1; + } + + function extension_name_compare($a, $b) + { + return strcmp(strtolower($a['ext_name']), strtolower($b['ext_name'])); + } + + function extension_author_compare($a, $b) + { + $r = strcasecmp($a['author'], $b['author']); + if ($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 $r; + } + + function sort_plugins_by_state() + { + uasort($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; + } +} +?>
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