Files
Froxlor/lib/Froxlor/Api/Commands/BackupStorages.php
Michael Kaufmann 4fcf0606c7 and again more work on backup-storages
Signed-off-by: Michael Kaufmann <d00p@froxlor.org>
2023-09-05 11:03:39 +02:00

543 lines
18 KiB
PHP

<?php
/**
* This file is part of the Froxlor project.
* Copyright (c) 2010 the Froxlor Team (see authors).
*
* 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; either version 2
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can also view it online at
* https://files.froxlor.org/misc/COPYING.txt
*
* @copyright the authors
* @author Froxlor team <team@froxlor.org>
* @license https://files.froxlor.org/misc/COPYING.txt GPLv2
*/
namespace Froxlor\Api\Commands;
use Exception;
use Froxlor\Api\ApiCommand;
use Froxlor\Api\ResourceEntity;
use Froxlor\Database\Database;
use Froxlor\FileDir;
use Froxlor\FroxlorLogger;
use Froxlor\Settings;
use Froxlor\UI\Response;
use Froxlor\Validate\Validate;
use PDO;
use phpseclib3\Crypt\Common\PublicKey;
use phpseclib3\Crypt\PublicKeyLoader;
use phpseclib3\Exception\NoKeyLoadedException;
/**
* @since 2.1.0
*/
class BackupStorages extends ApiCommand implements ResourceEntity
{
const SUPPORTED_TYPES = [
'local',
'ftp',
'sftp',
'rsync',
's3',
];
/**
* lists all backup storages entries
*
* @param array $sql_search
* optional array with index = fieldname, and value = array with 'op' => operator (one of <, > or =),
* LIKE is used if left empty and 'value' => searchvalue
* @param int $sql_limit
* optional specify number of results to be returned
* @param int $sql_offset
* optional specify offset for resultset
* @param array $sql_orderby
* optional array with index = fieldname and value = ASC|DESC to order the resultset by one or more
* fields
*
* @access admin
* @return string json-encoded array count|list
* @throws Exception
*/
public function listing()
{
if ($this->isAdmin() && $this->getUserDetail('change_serversettings') == 1) {
$this->logger()->logAction(FroxlorLogger::ADM_ACTION, LOG_INFO, "[API] list backup storages");
$query_fields = [];
$result_stmt = Database::prepare("
SELECT * FROM `" . TABLE_PANEL_BACKUP_STORAGES . "` " . $this->getSearchWhere($query_fields) . $this->getOrderBy() . $this->getLimit()
);
Database::pexecute($result_stmt, $query_fields, true, true);
$result = [];
while ($row = $result_stmt->fetch(PDO::FETCH_ASSOC)) {
$result[] = $row;
}
return $this->response([
'count' => count($result),
'list' => $result
]);
}
throw new Exception("Not allowed to execute given command.", 403);
}
/**
* returns the total number of backup storages
*
* @access admin
* @return string json-encoded response message
* @throws Exception
*/
public function listingCount()
{
if ($this->isAdmin() && $this->getUserDetail('change_serversettings') == 1) {
$result_stmt = Database::prepare("
SELECT COUNT(*) as num_backup_storagess
FROM `" . TABLE_PANEL_BACKUP_STORAGES . "`
");
$result = Database::pexecute_first($result_stmt, null, true, true);
if ($result) {
return $this->response($result['num_backup_storagess']);
}
$this->response(0);
}
throw new Exception("Not allowed to execute given command.", 403);
}
/**
* create a backup storage
*
* @param string $type
* required, backup storage type
* @param string $destination_path
* required, destination path for backup storage
* @param string $description
* required, description for backup storage
* @param string $region
* optional, required if type=s3. Region for backup storage (used for S3)
* @param string $bucket
* optional, required if type=s3. Bucket for backup storage (used for S3)
* @param string $hostname
* optional, required if type != local. Hostname for backup storage
* @param string $username
* optional, required if type != local. Username for backup storage (also used as access key for S3)
* @param string $password
* optional, required if type != local. Password for backup storage (also used as secret key for S3)
* @param string $pgp_public_key
* optional, pgp public key for backup storage
* @param string $retention
* optional, retention for backup storage (default {backup.default_retention})
*
* @access admin
* @return string json-encoded array
* @throws Exception
*/
public function add()
{
if ($this->isAdmin() && $this->getUserDetail('change_serversettings') == 1) {
// required parameters
$type = $this->getParam('type');
$destination_path = $this->getParam('destination_path');
$description = $this->getParam('description');
// type related requirements
$optional_flags = [
'region' => true,
'bucket' => true,
'hostname' => true,
'username' => true,
'password' => true,
];
if (!in_array($type, self::SUPPORTED_TYPES)) {
throw new Exception("Unsupported storage type: '" . $type . "'", 406);
}
if ($type != 'local') {
$optional_flags['hostname'] = false;
$optional_flags['username'] = false;
$optional_flags['password'] = false;
}
if ($type == 's3') {
$optional_flags['region'] = false;
$optional_flags['bucket'] = false;
}
// parameters
$region = $this->getParam('region', $optional_flags['region']);
$bucket = $this->getParam('bucket', $optional_flags['bucket']);
$hostname = $this->getParam('hostname', $optional_flags['hostname']);
$username = $this->getParam('username', $optional_flags['username']);
$password = $this->getParam('password', $optional_flags['password']);
$pgp_public_key = $this->getParam('pgp_public_key', true, null);
$retention = $this->getParam('retention', true, Settings::Get('backup.default_retention'));
// validation
$destination_path = FileDir::makeCorrectDir(Validate::validate($destination_path, 'destination_path', Validate::REGEX_DIR, '', [], true));
if ($type != 'local') {
if (!Validate::validateUrl($hostname)) {
Response::standardError('invalidhostname', '', true);
}
// check whether password is an ssh public key
$pwd_is_ssh_key = false;
try {
$key = PublicKeyLoader::loadPublicKey($password);
if ($key instanceof PublicKey) {
$pwd_is_ssh_key = true;
}
} catch (NoKeyLoadedException $e) {
/* nothing to do */
}
if (!$pwd_is_ssh_key) {
// normal password
$password = Validate::validate($password, 'password', '', '', [], true);
}
}
if ($type == 's3') {
$region = Validate::validate($region, 'region', '', '', [], true);
$bucket = Validate::validate($bucket, 'bucket', '/(?!(^xn--|.+-s3alias$))^[a-z0-9][a-z0-9-]{1,61}[a-z0-9]$/', '', [], true);
}
if ($retention <= 0) {
$retention = Settings::Get('backup.default_retention');
}
// TODO: add more validation
// pgp public key validation
if (!empty($pgp_public_key)) {
// check if gnupg extension is loaded
if (!extension_loaded('gnupg')) {
Response::standardError('gnupgextensionnotavailable', '', true);
}
// check if the pgp public key is a valid key
putenv('GNUPGHOME=' . sys_get_temp_dir());
if (gnupg_import(gnupg_init(), $pgp_public_key) === false) {
Response::standardError('invalidpgppublickey', '', true);
}
}
// store
$stmt = Database::prepare("
INSERT INTO `" . TABLE_PANEL_BACKUP_STORAGES . "` (
`description`,
`type`,
`region`,
`bucket`,
`destination_path`,
`hostname`,
`username`,
`password`,
`pgp_public_key`,
`retention`
) VALUES (
:description,
:type,
:region,
:bucket,
:destination_path,
:hostname,
:username,
:password,
:pgp_public_key,
:retention
)
");
$params = [
"description" => $description,
"type" => $type,
"region" => $region,
"bucket" => $bucket,
"destination_path" => $destination_path,
"hostname" => $hostname,
"username" => $username,
"password" => $password,
"pgp_public_key" => $pgp_public_key,
"retention" => $retention,
];
Database::pexecute($stmt, $params, true, true);
$id = Database::lastInsertId();
// return
$result = $this->apiCall('BackupStorages.get', [
'id' => $id
]);
$this->logger()->logAction(FroxlorLogger::ADM_ACTION, LOG_NOTICE, "[API] added backup storage '" . $result['description'] . "' (" . $result['type'] . ")");
return $this->response($result);
}
throw new Exception("Not allowed to execute given command.", 403);
}
/**
* return a backup storage entry by id
*
* @param int $id
* the backup-storage-id
*
* @access admin
* @return string json-encoded array
* @throws Exception
*/
public function get()
{
$id = $this->getParam('id');
if ($this->isAdmin() && $this->getUserDetail('change_serversettings') == 1) {
$result_stmt = Database::prepare("
SELECT * FROM `" . TABLE_PANEL_BACKUP_STORAGES . "`
WHERE `id` = :id"
);
$params = [
'id' => $id
];
$result = Database::pexecute_first($result_stmt, $params, true, true);
if ($result) {
$this->logger()->logAction(FroxlorLogger::ADM_ACTION, LOG_INFO, "[API] get backup storage '" . $result['description'] . "'");
return $this->response($result);
}
throw new Exception("Backup storage with " . $id . " could not be found", 404);
}
throw new Exception("Not allowed to execute given command.", 403);
}
/**
* update a backup storage by given id
*
* @param int $id
* required, the backup-storage-id
* @param string $type
* optional, backup storage type
* @param string $destination_path
* optional, destination path for backup storage
* @param string $description
* required, description for backup storage
* @param string $region
* optional, region for backup storage (used for S3)
* @param string $bucket
* optional, bucket for backup storage (used for S3)
* @param string $hostname
* optional, hostname for backup storage
* @param string $username
* optional, username for backup storage (also used as access key for S3)
* @param string $password
* optional, password for backup storage (also used as secret key for S3)
* @param string $pgp_public_key
* optional, pgp public key for backup storage
* @param string $retention
* optional, retention for backup storage (default {backup.default_retention})
*
* @access admin
* @return string json-encoded array
* @throws Exception
*/
public function update()
{
$id = $this->getParam('id');
if ($this->isAdmin() && $this->getUserDetail('change_serversettings') == 1) {
// validation
$result = $this->apiCall('BackupStorages.get', [
'id' => $id
]);
// parameters
$description = $this->getParam('description', true, $result['description']);
$type = $this->getParam('type', true, $result['type']);
$region = $this->getParam('region', true, $result['region']);
$bucket = $this->getParam('bucket', true, $result['bucket']);
$destination_path = $this->getParam('destination_path', true, $result['destination_path']);
$hostname = $this->getParam('hostname', true, $result['hostname']);
$username = $this->getParam('username', true, $result['username']);
$password = $this->getParam('password', true, '');
$pgp_public_key = $this->getParam('pgp_public_key', true, $result['pgp_public_key']);
$retention = $this->getParam('retention', true, $result['retention']);
if (!in_array($type, self::SUPPORTED_TYPES)) {
throw new Exception("Unsupported storage type: '" . $type . "'", 406);
}
if ($type != 'local') {
if (empty($hostname)) {
throw new Exception("Field 'hostname' cannot be empty", 406);
}
if (empty($username)) {
throw new Exception("Field 'username' cannot be empty", 406);
}
// password change
if (!empty($password)) {
// check whether password is an ssh public key
$pwd_is_ssh_key = false;
try {
$key = PublicKeyLoader::loadPublicKey($password);
if ($key instanceof PublicKey) {
$pwd_is_ssh_key = true;
}
} catch (NoKeyLoadedException $e) {
/* nothing to do */
}
if (!$pwd_is_ssh_key) {
// normal password
$password = Validate::validate($password, 'password', '', '', [], true);
}
}
}
if ($type == 's3') {
if (empty($region)) {
throw new Exception("Field 'region' cannot be empty", 406);
}
if (empty($bucket)) {
throw new Exception("Field 'bucket' cannot be empty", 406);
}
}
// validation
$destination_path = FileDir::makeCorrectDir(Validate::validate($destination_path, 'destination_path', Validate::REGEX_DIR, '', [], true));
if ($type != 'local' && !Validate::validateUrl($hostname)) {
Response::standardError('invalidhostname', '', true);
}
if ($type == 's3') {
$region = Validate::validate($region, 'region', '', '', [], true);
$bucket = Validate::validate($bucket, 'bucket', '/(?!(^xn--|.+-s3alias$))^[a-z0-9][a-z0-9-]{1,61}[a-z0-9]$/', '', [], true);
}
if ($retention <= 0) {
$retention = Settings::Get('backup.default_retention');
}
// TODO: add more validation
// pgp public key validation
if (!empty($pgp_public_key) && $pgp_public_key != $result['pgp_public_key']) {
// check if gnupg extension is loaded
if (!extension_loaded('gnupg')) {
Response::standardError('gnupgextensionnotavailable', '', true);
}
// check if the pgp public key is a valid key
putenv('GNUPGHOME=' . sys_get_temp_dir());
if (gnupg_import(gnupg_init(), $pgp_public_key) === false) {
Response::standardError('invalidpgppublickey', '', true);
}
}
if (!empty($password)) {
$stmt = Database::prepare("UPDATE `" . TABLE_PANEL_BACKUP_STORAGES . "`
SET `password` = :password
WHERE `id` = :id
");
Database::pexecute($stmt, [
"id" => $id,
"password" => $password
], true, true);
$this->logger()->logAction(FroxlorLogger::ADM_ACTION, LOG_NOTICE, "[API] updated password for backup-storage '" . $result['description'] . "'");
}
// update
$stmt = Database::prepare("
UPDATE `" . TABLE_PANEL_BACKUP_STORAGES . "`
SET `description` = :description,
`type` = :type,
`region` = :region,
`bucket` = :bucket,
`destination_path` = :destination_path,
`hostname` = :hostname,
`username` = :username,
`pgp_public_key` = :pgp_public_key,
`retention` = :retention
WHERE `id` = :id
");
$params = [
"id" => $id,
"description" => $description,
"type" => $type,
"region" => $region,
"bucket" => $bucket,
"destination_path" => $destination_path,
"hostname" => $hostname,
"username" => $username,
"pgp_public_key" => $pgp_public_key,
"retention" => $retention,
];
Database::pexecute($stmt, $params, true, true);
$this->logger()->logAction(FroxlorLogger::ADM_ACTION, LOG_NOTICE, "[API] edited backup storage '" . $result['description'] . "'");
// return
$result = $this->apiCall('BackupStorages.get', [
'id' => $id
]);
return $this->response($result);
}
throw new Exception("Not allowed to execute given command.", 403);
}
/**
* delete a backup-storage entry by id
*
* @param int $id
* required, the backup-storage-id
*
* @access admin
* @return string json-encoded array
* @throws Exception
*/
public function delete()
{
$id = $this->getParam('id');
if ($this->isAdmin() && $this->getUserDetail('change_serversettings') == 1) {
// validation
$result = $this->apiCall('BackupStorages.get', [
'id' => $id
]);
// validate no-one's using it
// settings
if ($id == Settings::Get('backup.default_storage')) {
throw new Exception("Given backup storage is currently set as default storage and cannot be deleted.", 406);
}
// customers
$sel_stmt = Database::prepare("
SELECT COUNT(*) as num_storage_users
FROM `" . TABLE_PANEL_CUSTOMERS . "`
WHERE `backup` = :id
");
$storage_users_result = Database::pexecute_first($sel_stmt, ['id' => $id]);
if ($storage_users_result && $storage_users_result['num_storage_users'] > 0) {
throw new Exception("Given backup storage is currently assigned to " . $storage_users_result['num_storage_users'] . " customers and cannot be deleted.", 406);
}
// existing backups
$sel_stmt = Database::prepare("
SELECT COUNT(*) as num_storage_backups
FROM `" . TABLE_PANEL_BACKUPS . "`
WHERE `storage_id` = :id
");
$storage_backups_result = Database::pexecute_first($sel_stmt, ['id' => $id]);
if ($storage_backups_result && $storage_backups_result['num_storage_backups'] > 0) {
throw new Exception("Given backup storage has still " . $storage_backups_result['num_storage_backups'] . " backups on it and cannot be deleted.", 406);
}
// delete
$stmt = Database::prepare("
DELETE FROM `" . TABLE_PANEL_BACKUP_STORAGES . "`
WHERE `id` = :id
");
$params = [
"id" => $id
];
Database::pexecute($stmt, $params, true, true);
$this->logger()->logAction(FroxlorLogger::ADM_ACTION, LOG_NOTICE, "[API] deleted backup storage '" . $result['description'] . "'");
// return
return $this->response(true);
}
throw new Exception("Not allowed to execute given command.", 403);
}
}