add standard files

CHANGELOG

@@ -0,0 +1,3 @@
+v1.2.10 - Tested with dig.js, deployed to production with digd.js
+    * Parses and packs common record types including:
+        * A,AAAA,CAA,CNAME,MX,NS,PTR,SOA,SRV,TXT

LICENSE

@@ -0,0 +1,41 @@
+Copyright 2017 AJ ONeal
+
+This is open source software; you can redistribute it and/or modify it under the
+terms of either:
+
+   a) the "MIT License"
+   b) the "Apache-2.0 License"
+
+MIT License
+
+   Permission is hereby granted, free of charge, to any person obtaining a copy
+   of this software and associated documentation files (the "Software"), to deal
+   in the Software without restriction, including without limitation the rights
+   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+   copies of the Software, and to permit persons to whom the Software is
+   furnished to do so, subject to the following conditions:
+
+   The above copyright notice and this permission notice shall be included in all
+   copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+   SOFTWARE.
+
+Apache-2.0 License Summary
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

dns.types.js

@@ -49,8 +49,8 @@ var types = exports.DNS_TYPES = {
 };
 
 // and in reverse
-for (var key in types) {
+Object.keys(types).forEach(function (key) {
   types[types[key]] = key;
-}
+});
 
 }('undefined' !== typeof window ? window : exports));

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dns-suite",
-  "version": "1.2.9",
+  "version": "1.2.10",
   "description": "testing dns",
   "main": "dns.js",
   "homepage": "https://git.coolaj86.com/coolaj86/dns-suite.js",

packer/type.caa.js

@@ -0,0 +1,69 @@
+(function (exports) {
+'use strict';
+
+// RFC 6844
+// Explanation: https://tools.ietf.org/html/rfc6844#section-3
+// Binary Format: https://tools.ietf.org/html/rfc6844#section-5
+// Real-world Usage: https://support.dnsimple.com/articles/caa-record/
+
+// A Certification Authority Authorization (CAA) record is used to specify which
+// certificate authorities (CAs) are allowed to issue certificates for a domain.
+
+// Value    Meaning/Use
+//
+// Flag     An unsigned integer between 0-255.
+//          It is currently used to represent the critical flag, that has a
+//          specific meaning per RFC 6844
+// Tag      An ASCII string that represents the identifier of the property
+//          represented by the record.
+// Value    The value associated with the tag.
+
+// The RFC currently defines 3 available tags:
+//
+// - issue:     explicity authorizes a single certificate authority to issue a
+//              certificate (any type) for the hostname.
+// - issuewild: explicity authorizes a single certificate authority to issue a
+//              wildcard certificate (and only wildcard) for the hostname.
+// - iodef:     specifies an URL to which a certificate authority may report
+//              policy violations.
+
+exports.DNS_PACKER_TYPE_CAA = function (ab, dv, total, record) {
+  if ('number' !== typeof record.flag || isNaN(record.flag) || record.flag < 0 || record.flag > 255) {
+    console.log(record);
+    throw new Error("bad CAA flag:", record.flag);
+  }
+  if ('string' !== typeof record.tag || !record.tag || record.tag.length > 255) {
+    throw new Error("bad CAA tag:", record.tag);
+  }
+  if ('string' !== typeof record.value || !record.value) {
+    throw new Error("bad CAA value:", record.value);
+  }
+
+  // RDLEN = flag (1 byte) + taglen (1 byte) + tagstr (taglen bytes) + valuestr (valuelen bytes)
+  dv.setUint16(total, 1 + 1 + record.tag.length + record.value.length, false);
+  total += 2;
+
+  // FLAG
+  dv.setUint8(total, record.flag, false);
+  total += 1;
+
+  // TAG LENGTH
+  dv.setUint8(total, record.tag.length, false);
+  total += 1;
+
+  // TAG
+  record.tag.split('').forEach(function (ch) {
+    dv.setUint8(total, ch.charCodeAt(0), false);
+    total += 1;
+  });
+
+  // VALUE
+  record.value.split('').forEach(function (ch) {
+    dv.setUint8(total, ch.charCodeAt(0), false);
+    total += 1;
+  });
+
+  return total;
+};
+
+}('undefined' !== typeof window ? window : exports));

parser/type.caa.js

@@ -1,6 +1,9 @@
 (function (exports) {
 'use strict';
 
+// RFC 6844 https://tools.ietf.org/html/rfc6844#section-3
+// https://support.dnsimple.com/articles/caa-record/
+
 // A Certification Authority Authorization (CAA) record is used to specify which
 // certificate authorities (CAs) are allowed to issue certificates for a domain.
 
@@ -26,13 +29,23 @@ exports.DNS_PARSER_TYPE_CAA = function (ab, packet, record) {
 
   var data = new Uint8Array(ab);
   var i = record.rdstart;
-  var flag = data[i++];
-  var mid = data[i++];
+  var flag = data[i];
+  var mid = data[i + 1];
+  i += 2;
   mid += i;
   var end = record.rdstart + record.rdlength;
-  var tag = '', value = '';
-  while (i < mid) { tag += String.fromCharCode(data[i++]); }
-  while (i < end) { value += String.fromCharCode(data[i++]); }
+  var tag = '';
+  var value = '';
+
+  while (i < mid) {
+    tag += String.fromCharCode(data[i]);
+    i += 1;
+  }
+
+  while (i < end) {
+    value += String.fromCharCode(data[i]);
+    i += 1;
+  }
 
   record.flag = flag;
   record.tag = tag;