Rename files

src/service/util.js

@@ -0,0 +1,109 @@
+/**
+ * Mailvelope - secure email with OpenPGP encryption for Webmail
+ * Copyright (C) 2016 Mailvelope GmbH
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License version 3
+ * 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+'use strict';
+
+const addressparser = require('addressparser');
+
+/**
+ * Checks for a valid string
+ * @param  {} data     The input to be checked
+ * @return {boolean}   If data is a string
+ */
+exports.isString = function(data) {
+  return typeof data === 'string' || String.prototype.isPrototypeOf(data);
+};
+
+/**
+ * Checks for a valid key id which is between 8 and 40 hex chars.
+ * @param  {string} data   The key id
+ * @return {boolean}       If the key id if valid
+ */
+exports.validateKeyId = function(data) {
+  if (!this.isString(data)) {
+    return false;
+  }
+  return /^[a-fA-F0-9]{8,40}$/.test(data);
+};
+
+/**
+ * Checks for a valid email address.
+ * @param  {string} data   The email address
+ * @return {boolean}       If the email address if valid
+ */
+exports.validateAddress = function(data) {
+  if (!this.isString(data)) {
+    return false;
+  }
+  const re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
+  return re.test(data);
+};
+
+/**
+ * Validate an ascii armored public PGP key block.
+ * @param  {string} data   The armored key block
+ * @return {boolean}      If the key is valid
+ */
+exports.validatePublicKey = function(data) {
+  if (!this.isString(data)) {
+    return false;
+  }
+  const begin = /-----BEGIN PGP PUBLIC KEY BLOCK-----/;
+  const end = /-----END PGP PUBLIC KEY BLOCK-----/;
+  return begin.test(data) && end.test(data);
+};
+
+/**
+ * Parse an array of user id string to objects
+ * @param  {Array} userIds   A list of user ids strings
+ * @return {Array}           An array of user id objects
+ */
+exports.parseUserIds = function(userIds) {
+  let result = [];
+  userIds.forEach(uid => result = result.concat(addressparser(uid)));
+  return result.map(u => ({
+    email: u.address ? u.address.toLowerCase() : undefined,
+    name: u.name
+  }));
+};
+
+/**
+ * Deduplicates items in an array
+ * @param  {Array} list   The list of items with duplicates
+ * @return {Array}        The list of items without duplicates
+ */
+exports.deDup = function(list) {
+  var result = [];
+  (list || []).forEach(function(i) {
+    if (result.indexOf(i) === -1) {
+      result.push(i);
+    }
+  });
+  return result;
+};
+
+/**
+ * Create an error with a custom status attribute e.g. for http codes.
+ * @param  {number} status    The error's http status code
+ * @param  {string} message   The error message
+ * @return {Error}            The resulting error object
+ */
+exports.error = function(status, message) {
+  let err = new Error(message);
+  err.status = status;
+  return err;
+};