Files
cloudron-box/src/storage/caas.js
2016-09-20 09:25:48 +02:00

138 lines
4.9 KiB
JavaScript

'use strict';
exports = module.exports = {
getBoxBackupDetails: getBoxBackupDetails,
getAppBackupDetails: getAppBackupDetails,
getRestoreUrl: getRestoreUrl,
getLocalFilePath: getLocalFilePath,
copyObject: copyObject
};
var assert = require('assert'),
AWS = require('aws-sdk'),
config = require('../config.js'),
superagent = require('superagent');
function getBackupCredentials(apiConfig, callback) {
assert.strictEqual(typeof apiConfig, 'object');
assert.strictEqual(typeof callback, 'function');
assert(apiConfig.token);
var url = config.apiServerOrigin() + '/api/v1/boxes/' + config.fqdn() + '/awscredentials';
superagent.post(url).query({ token: apiConfig.token }).timeout(30 * 1000).end(function (error, result) {
if (error && !error.response) return callback(error);
if (result.statusCode !== 201) return callback(new Error(result.text));
if (!result.body || !result.body.credentials) return callback(new Error('Unexpected response'));
var credentials = {
signatureVersion: 'v4',
accessKeyId: result.body.credentials.AccessKeyId,
secretAccessKey: result.body.credentials.SecretAccessKey,
sessionToken: result.body.credentials.SessionToken,
region: apiConfig.region || 'us-east-1'
};
if (apiConfig.endpoint) credentials.endpoint = new AWS.Endpoint(apiConfig.endpoint);
callback(null, credentials);
});
}
function getBoxBackupDetails(apiConfig, id, callback) {
assert.strictEqual(typeof apiConfig, 'object');
assert.strictEqual(typeof id, 'string');
assert.strictEqual(typeof callback, 'function');
getBackupCredentials(apiConfig, function (error, result) {
if (error) return callback(error);
var s3Url = 's3://' + apiConfig.bucket + '/' + apiConfig.prefix + '/' + id;
var region = apiConfig.region || 'us-east-1';
var details = {
backupScriptArguments: [ 's3', s3Url, result.accessKeyId, result.secretAccessKey, region, apiConfig.key, result.sessionToken ]
};
callback(null, details);
});
}
function getAppBackupDetails(apiConfig, appId, dataId, configId, callback) {
assert.strictEqual(typeof apiConfig, 'object');
assert.strictEqual(typeof appId, 'string');
assert.strictEqual(typeof dataId, 'string');
assert.strictEqual(typeof configId, 'string');
assert.strictEqual(typeof callback, 'function');
getBackupCredentials(apiConfig, function (error, result) {
if (error) return callback(error);
var s3DataUrl = 's3://' + apiConfig.bucket + '/' + apiConfig.prefix + '/' + dataId;
var s3ConfigUrl = 's3://' + apiConfig.bucket + '/' + apiConfig.prefix + '/' + configId;
var region = apiConfig.region || 'us-east-1';
var details = {
backupScriptArguments: [ 's3', appId, s3ConfigUrl, s3DataUrl, result.accessKeyId, result.secretAccessKey, region, apiConfig.key, result.sessionToken ]
};
callback(null, details);
});
}
function getRestoreUrl(apiConfig, filename, callback) {
assert.strictEqual(typeof apiConfig, 'object');
assert.strictEqual(typeof filename, 'string');
assert.strictEqual(typeof callback, 'function');
if (!apiConfig.bucket || !apiConfig.prefix) return new Error('Invalid configuration'); // prevent error in s3
getBackupCredentials(apiConfig, function (error, credentials) {
if (error) return callback(error);
credentials.region = apiConfig.region; // use same region as where we uploaded
var s3 = new AWS.S3(credentials);
var params = {
Bucket: apiConfig.bucket,
Key: apiConfig.prefix + '/' + filename,
Expires: 60 * 60 * 24 /* 1 day */
};
var url = s3.getSignedUrl('getObject', params);
callback(null, { url: url });
});
}
function getLocalFilePath(apiConfig, filename, callback) {
assert.strictEqual(typeof apiConfig, 'object');
assert.strictEqual(typeof filename, 'string');
assert.strictEqual(typeof callback, 'function');
callback(new Error('not supported'));
}
function copyObject(apiConfig, from, to, callback) {
assert.strictEqual(typeof apiConfig, 'object');
assert.strictEqual(typeof from, 'string');
assert.strictEqual(typeof to, 'string');
assert.strictEqual(typeof callback, 'function');
if (!apiConfig.bucket || !apiConfig.prefix) return new Error('Invalid configuration'); // prevent error in s3
getBackupCredentials(apiConfig, function (error, credentials) {
if (error) return callback(error);
var params = {
Bucket: apiConfig.bucket, // target bucket
Key: apiConfig.prefix + '/' + to, // target file
CopySource: apiConfig.bucket + '/' + apiConfig.prefix + '/' + from, // source
};
var s3 = new AWS.S3(credentials);
s3.copyObject(params, callback);
});
}