Files
cloudron-box/src/storage/s3.js
2015-12-30 18:30:41 +01:00

135 lines
4.2 KiB
JavaScript

/* jslint node:true */
'use strict';
exports = module.exports = {
getSignedUploadUrl: getSignedUploadUrl,
getSignedDownloadUrl: getSignedDownloadUrl,
copyObject: copyObject,
getAllPaged: getAllPaged
};
var assert = require('assert'),
AWS = require('aws-sdk');
function getBackupCredentials(backupConfig, callback) {
assert.strictEqual(typeof backupConfig, 'object');
assert.strictEqual(typeof callback, 'function');
assert(backupConfig.accessKeyId && backupConfig.secretAccessKey);
var credentials = {
accessKeyId: backupConfig.accessKeyId,
secretAccessKey: backupConfig.secretAccessKey,
region: 'us-east-1'
};
if (backupConfig.endpoint) credentials.endpoint = new AWS.Endpoint(backupConfig.endpoint);
callback(null, credentials);
}
function getAllPaged(backupConfig, page, perPage, callback) {
assert.strictEqual(typeof backupConfig, 'object');
assert.strictEqual(typeof page, 'number');
assert.strictEqual(typeof perPage, 'number');
assert.strictEqual(typeof callback, 'function');
getBackupCredentials(backupConfig, function (error, credentials) {
if (error) return callback(error);
var s3 = new AWS.S3(credentials);
var params = {
Bucket: backupConfig.bucket,
EncodingType: 'url',
Prefix: backupConfig.prefix + '/backup_'
};
s3.listObjects(params, function (error, data) {
if (error) return callback(error);
var results = data.Contents.map(function (backup) {
var key = backup.Key.slice(backupConfig.prefix.length + 1);
// This depends on the backups.js format of backup names :-(
var version = key.slice(key.lastIndexOf('-') + 2, -7);
return {
creationTime: backup.LastModified,
boxVersion: version,
restoreKey: key,
dependsOn: [] // FIXME we have no information here
};
});
return callback(null, results);
});
});
}
function getSignedUploadUrl(backupConfig, filename, callback) {
assert.strictEqual(typeof backupConfig, 'object');
assert.strictEqual(typeof filename, 'string');
assert.strictEqual(typeof callback, 'function');
getBackupCredentials(backupConfig, function (error, credentials) {
if (error) return callback(error);
var s3 = new AWS.S3(credentials);
var params = {
Bucket: backupConfig.bucket,
Key: backupConfig.prefix + '/' + filename,
Expires: 60 * 30 /* 30 minutes */
};
var url = s3.getSignedUrl('putObject', params);
callback(null, { url : url, sessionToken: credentials.sessionToken });
});
}
function getSignedDownloadUrl(backupConfig, filename, callback) {
assert.strictEqual(typeof backupConfig, 'object');
assert.strictEqual(typeof filename, 'string');
assert.strictEqual(typeof callback, 'function');
getBackupCredentials(backupConfig, function (error, credentials) {
if (error) return callback(error);
var s3 = new AWS.S3(credentials);
var params = {
Bucket: backupConfig.bucket,
Key: backupConfig.prefix + '/' + filename,
Expires: 60 * 30 /* 30 minutes */
};
var url = s3.getSignedUrl('getObject', params);
callback(null, { url: url, sessionToken: credentials.sessionToken });
});
}
function copyObject(backupConfig, from, to, callback) {
assert.strictEqual(typeof backupConfig, 'object');
assert.strictEqual(typeof from, 'string');
assert.strictEqual(typeof to, 'string');
assert.strictEqual(typeof callback, 'function');
getBackupCredentials(backupConfig, function (error, credentials) {
if (error) return callback(error);
var params = {
Bucket: backupConfig.bucket, // target bucket
Key: backupConfig.prefix + '/' + to, // target file
CopySource: backupConfig.bucket + '/' + backupConfig.prefix + '/' + from, // source
};
var s3 = new AWS.S3(credentials);
s3.copyObject(params, callback);
});
}