Files
cloudron-box/src/volumes.js
Girish Ramakrishnan 601fc9a202 it is uuid.v4() now
2021-02-17 23:18:36 -08:00

117 lines
3.9 KiB
JavaScript

'use strict';
exports = module.exports = {
add,
get,
del,
list
};
const assert = require('assert'),
BoxError = require('./boxerror.js'),
collectd = require('./collectd.js'),
debug = require('debug')('box:volumes'),
ejs = require('ejs'),
eventlog = require('./eventlog.js'),
fs = require('fs'),
path = require('path'),
safe = require('safetydance'),
services = require('./services.js'),
uuid = require('uuid'),
volumedb = require('./volumedb.js');
const COLLECTD_CONFIG_EJS = fs.readFileSync(__dirname + '/collectd/volume.ejs', { encoding: 'utf8' });
const NOOP_CALLBACK = function (error) { if (error) debug(error); };
function validateName(name) {
assert.strictEqual(typeof name, 'string');
if (!/^[-\w^&'@{}[\],$=!#().%+~ ]+$/.test(name)) return new BoxError(BoxError.BAD_FIELD, 'Invalid name');
return null;
}
function validateHostPath(hostPath) {
assert.strictEqual(typeof hostPath, 'string');
if (path.normalize(hostPath) !== hostPath) return new BoxError(BoxError.BAD_FIELD, 'hostPath must contain a normalized path', { field: 'hostPath' });
if (!path.isAbsolute(hostPath)) return new BoxError(BoxError.BAD_FIELD, 'backupFolder must be an absolute path', { field: 'hostPath' });
if (hostPath === '/') return new BoxError(BoxError.BAD_FIELD, 'hostPath cannot be /', { field: 'hostPath' });
if (!hostPath.endsWith('/')) hostPath = hostPath + '/'; // ensure trailing slash for the prefix matching to work
const allowedPaths = [ '/mnt/', '/media/', '/srv/', '/opt/' ];
if (!allowedPaths.some(p => hostPath.startsWith(p))) return new BoxError(BoxError.BAD_FIELD, 'hostPath must be under /mnt, /media, /opt or /srv', { field: 'hostPath' });
const stat = safe.fs.lstatSync(hostPath);
if (!stat) return new BoxError(BoxError.BAD_FIELD, 'hostPath does not exist. Please create it on the server first', { field: 'hostPath' });
if (!stat.isDirectory()) return new BoxError(BoxError.BAD_FIELD, 'hostPath is not a directory', { field: 'hostPath' });
return null;
}
function add(name, hostPath, auditSource, callback) {
assert.strictEqual(typeof name, 'string');
assert.strictEqual(typeof hostPath, 'string');
assert.strictEqual(typeof auditSource, 'object');
assert.strictEqual(typeof callback, 'function');
let error = validateName(name);
if (error) return callback(error);
error = validateHostPath(hostPath);
if (error) return callback(error);
const id = uuid.v4();
volumedb.add(id, name, hostPath, function (error) {
if (error) return callback(error);
eventlog.add(eventlog.ACTION_VOLUME_ADD, auditSource, { id, name, hostPath });
services.rebuildService('sftp', NOOP_CALLBACK);
const collectdConf = ejs.render(COLLECTD_CONFIG_EJS, { volumeId: id, hostPath });
collectd.addProfile(id, collectdConf, NOOP_CALLBACK);
callback(null, id);
});
}
function get(id, callback) {
assert.strictEqual(typeof id, 'string');
assert.strictEqual(typeof callback, 'function');
volumedb.get(id, function (error, result) {
if (error) return callback(error);
callback(null, result);
});
}
function list(callback) {
assert.strictEqual(typeof callback, 'function');
volumedb.list(function (error, result) {
if (error) return callback(error);
return callback(null, result);
});
}
function del(volume, auditSource, callback) {
assert.strictEqual(typeof volume, 'object');
assert.strictEqual(typeof auditSource, 'object');
assert.strictEqual(typeof callback, 'function');
volumedb.del(volume.id, function (error) {
if (error) return callback(error);
eventlog.add(eventlog.ACTION_VOLUME_REMOVE, auditSource, { volume });
services.rebuildService('sftp', NOOP_CALLBACK);
collectd.removeProfile(volume.id, NOOP_CALLBACK);
return callback(null);
});
}