Merge branch 'v1' into 'master'

V1

See merge request !1

packer/type.ns.js

@@ -0,0 +1,38 @@
+(function (exports) {
+'use strict';
+
+
+// NS name for the supplied domain. May be label, pointer or any combination
+
+exports.DNS_PACKER_TYPE_NS = function (ab, dv, total, record) {
+  if(!record.data){
+      throw new Error("no data on NS record");
+  }
+  
+
+  var nsLen = 0;
+  var rdLenIndex = total;
+  total +=2;
+
+  // RDATA 
+  // a sequence of labels
+  record.data.split('.').forEach(function(label) {
+      nsLen += 1 + label.length;
+      
+      dv.setUint8(total, label.length, false);
+      total += 1;
+
+      label.split('').forEach(function (ch){
+          dv.setUint8(total, ch.charCodeAt(0), false);
+          total += 1;
+      });
+  });
+
+  // RDLENGTH
+  dv.setUint16(rdLenIndex, record.data.length + 1, false);
+
+
+  return total;
+};
+
+}('undefined' !== typeof window ? window : exports));

packer/type.ptr.js

@@ -0,0 +1,37 @@
+(function (exports) {
+'use strict';
+
+// The host name that represents the supplied UP address
+// May be a label, pointer or any combination 
+
+exports.DNS_PACKER_TYPE_PTR = function (ab, dv, total, record) {
+  if (!record.data) {
+    throw new Error("no data for PTR record");
+  }
+
+  var ptrLen = 0;
+  var rdLenIndex = total;
+  total += 2;
+
+  // RDATA 
+  // a sequence of labels
+  record.data.split('.').forEach(function (label){
+      console.log("the labels are: " + label);
+      ptrLen += 1 + label.length;
+
+      dv.setUint8(total, label.length, false);
+      total += 1;
+
+      label.split('').forEach(function (ch){
+          dv.setUint8(total, ch.charCodeAt(0), false);
+          total += 1;
+      });
+  });
+
+  // RDLENGTH
+  dv.setUint16(rdLenIndex, record.data.length + 1, false);
+
+  return total;
+};
+
+}('undefined' !== typeof window ? window : exports));

packer/type.soa.js

@@ -0,0 +1,87 @@
+(function (exports) {
+'use strict';
+
+// Value              Meaning/Use
+// Primary NS         Variable length. The name of the Primary Master for the domain. May be a label, pointer, or any combination
+// Admin MB           Variable length. The administrator's mailbox. May be a label, pointer, or any combination
+// Serial Number      Unsigned 32-bit integer
+// Refresh Interval   Unsigned 32-bit integer
+// Retry Interval     Unsigned 32-bit integer
+// Expiration Limit   Unsigned 32-bit integer
+// Minimum TTL        Unsigned 32-bit integer
+
+
+
+exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
+  if(!record.name_server){
+    throw new Error("no name server for SOA record");
+  }
+  if(!record.email_addr){
+    throw new Error("ne email address for SOA record");
+  }
+  if(!record.sn){
+    throw new Error("no serial number for SOA record");
+  }
+  if(!record.ref){
+    throw new Error("no serial number for SOA record");
+  }
+  if(!record.ret){
+    throw new Error("no serial number for SOA record");
+  }
+  if(!record.ex){
+    throw new Error("no serial number for SOA record");
+  }
+  if(!record.nx){
+    throw new Error("no serial number for SOA record");
+  }
+
+  var soaLen = 20; // take into account sn, ref, ret, ex, and nx
+                  //  (32-bits each. 4Bytes * 5 = 20)
+  var rdLenIndex = total;
+  total += 2; // Save space for RDLENGTH
+
+  // pack name_server which is a sequence of labels
+  record.name_server.split('.').forEach(function(label){
+    soaLen += 1 + label.length;
+
+    dv.setUint8(total, label.length, false);
+    total += 1;
+
+    label.split('').forEach(function(ch) {
+      dv.setUint8(total, ch.charCodeAt(0), false);
+      total += 1;
+    });
+  });
+
+  // pack email address which is a sequence of labels
+  record.email_addr.split('.').forEach(function (label){
+    soaLen += 1 + label.length;
+
+    dv.setUint8(total, label.length, false);
+    total += 1;
+
+    label.split('').forEach(function (ch){
+      dv.setUint8(total, ch.charCodeAt(0), false);
+      total += 1;
+    });
+  });
+
+  // pack all 32-bit values
+  dv.setUint32(total, parseInt(record.sn, 10), false);
+  total+=4;
+  dv.setUint32(total, parseInt(record.ref, 10), false);
+  total+=4;
+  dv.setUint32(total, parseInt(record.ret, 10), false);
+  total+=4;
+  dv.setUint32(total, parseInt(record.ex, 10), false);
+  total+=4;
+  dv.setUint32(total, parseInt(record.nx, 10), false);
+  total+=4;
+
+  // RDLENGTH
+  dv.setUint16(rdLenIndex, soaLen, false);
+
+  return total;
+};
+
+}('undefined' !== typeof window ? window : exports));

packer/type.srv.js

@@ -0,0 +1,69 @@
+(function (exports) {
+'use strict';
+
+// SRV RDATA contains:
+// Priority: The relative priority of this service. 16-bit (range 0-65535)
+// Weight:   Used when more than one serivice has the same priority. 16-bit 
+//           (range 0-65535)
+// Port:     Port number assigned to the symbolic service. 16-bit (range 0-65535)
+// Target:   The name of the host that will provide service.
+
+exports.DNS_PACKER_TYPE_SRV = function (ab, dv, total, record) {
+
+  // maybe these should be changed to 'hasOwnProperty' for all of these
+  // TODO: Check that number is in range 1-64k
+  if (!record.priority){
+    throw new Error("no priority for SRV record");
+  }
+  if (!record.hasOwnProperty('weight')){
+    throw new Error("no weight for SRV record");
+  }
+  if (!record.port){
+    throw new Error("no port for SRV record");
+  }
+  if (!record.target) {
+    throw new Error("no target for SRV record");
+  }
+
+  // console.log("record length, priority, weight, port, then target");
+  // console.log("record priority is: " + record.priority);
+  // console.log("record weight is: " + record.weight);
+  // console.log("record port is: " + record.port);
+  // console.log("record target is: " + record.target);
+  // console.log("total length currently is: " + total);
+  
+
+  var srvLen = 6; // 16-bit priority, weight and port = 6 Bytes
+  var rdLenIndex = total;
+
+  total+=2; // space for RDLENGTH
+
+  dv.setUint16(total, parseInt(record.priority, 10), false);
+  total+=2;
+
+  dv.setUint16(total,parseInt(record.weight, 10), false);
+  total+=2;
+
+  dv.setUint16(total, parseInt(record.port, 10), false);
+  total+=2;
+
+  record.target.split('.').forEach(function (label){
+    srvLen += 1 + label.length;
+
+    dv.setUint8(total, label.length, false);
+    total += 1;
+
+    label.split('').forEach(function (ch) {
+      dv.setUint8(total, ch.charCodeAt(0), false);
+      total += 1;
+    });
+  });
+
+  // RDLENGTH
+
+  dv.setUint16(rdLenIndex, srvLen, false);
+  
+  return total;
+};
+
+}('undefined' !== typeof window ? window : exports));

packer/type.txt.js

@@ -0,0 +1,43 @@
+(function (exports) {
+'use strict';
+
+// Record type is just any text.
+
+exports.DNS_PACKER_TYPE_TXT = function (ab, dv, total, record) {
+    if (!record.data){
+        throw new Error("no data for TXT record");
+    }
+
+    var txtLen = 0;
+    var rdLenIndex = total;
+    total += 3;
+
+    // RDATA
+    console.log("what is my record data: " + typeof record.data[0]);
+    console.log("what are my labels? ");
+    // var res = record.data[0].split(" ");
+    // console.log("Res: " + res);
+
+    console.log("for each rdata");
+    record.data.forEach(function(str){
+
+      str.split('').forEach(function(ch){
+
+      
+      txtLen += 1;
+      // console.log(chcim);
+      dv.setUint8(total, ch.charCodeAt(0), false);
+      total += 1;
+      
+      });
+    });
+
+    console.log("txt rdata length is: " + txtLen);
+    dv.setUint16(rdLenIndex, txtLen+1, false);
+    dv.setUint8(rdLenIndex+2, txtLen, false);
+    // total +=1;
+
+    return total;
+};
+
+}('undefined' !== typeof window ? window : exports));

parser/type.soa.js

@@ -1,21 +1,66 @@
 (function (exports) {
 'use strict';
 
-// TODO. Not yet implemented
-
 // Value              Meaning/Use
 // Primary NS         Variable length. The name of the Primary Master for the domain. May be a label, pointer, or any combination
 // Admin MB           Variable length. The administrator's mailbox. May be a label, pointer, or any combination
 // Serial Number      Unsigned 32-bit integer
 // Refresh Interval   Unsigned 32-bit integer
 // Retry Interval     Unsigned 32-bit integer
-// Retry Interval     Unsigned 32-bit integer
 // Expiration Limit   Unsigned 32-bit integer
 // Minimum TTL        Unsigned 32-bit integer
 
+var unpackLabels = exports.DNS_UNPACK_LABELS || require('../dns.unpack-labels.js').DNS_UNPACK_LABELS;
 
 exports.DNS_PARSER_TYPE_SOA = function (ab, packet, record) {
 
+  var rdataAb = ab.slice(record.rdstart, record.rdstart + record.rdlength);
+  var dv = new DataView(rdataAb);
+
+  // we need this information for this parser
+  var cpcount = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).cpcount;
+  var offset = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).byteLength;
+  var labels = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).labels;
+
+  // Primary NS
+  record.name_server = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
+  
+  // if there exists compression pointers in the rdata
+  if (cpcount > 0){
+    // do something awesome with compression pointers to get the email address
+    // I need the length of all the data before the email address starts.
+    // if there are compression pointers then there will be a byte to indicate the length of each label, the label, 
+    // then there will be a compression pointer to grab the longest label.
+
+    var start = 2; // start or email_addr. take into account compression pointer and address length
+    for(var i = 0; i < labels.length; i++){
+
+      // increase start by the label length. the +1 is to take into account the next label size byte
+      start = start + labels[i].length + 1;
+      // check for cpcount. 2 counts behind
+      if(parseInt(dv.getUint8(start - 2), 10) === 192){
+        record.email_addr = unpackLabels(new Uint8Array(ab), record.rdstart + start ,{ byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
+      }
+    }    
+  } // if there are no compression pointers, we can get the email address directly from the offset
+  else {
+
+    record.email_addr = unpackLabels(new Uint8Array(ab), record.rdstart + offset, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
+  }
+  // Serial Number
+  record.sn = dv.getUint32(dv.byteLength - 20, false);
+  // Refresh Interval
+  record.ref = dv.getUint32(dv.byteLength - 16, false);
+  // Retry Interval
+  record.ret = dv.getUint32(dv.byteLength - 12, false);
+  // Expiration Limit
+  record.ex = dv.getUint32(dv.byteLength - 8, false);
+  // Minimum TTL
+  record.nx = dv.getUint32(dv.byteLength - 4, false);
+  
+
+  return record;
+
 };
 
 }('undefined' !== typeof window ? window : exports));

parser/type.srv.js

@@ -1,6 +1,5 @@
 (function (exports) {
 'use strict';
-// TODO. Not yet implemented
 
 // SRV identifies the host(s) that will support a particular service. It
 // is a general purpose RR to discover any service.

test/soa_test/google.com.soa.0.json

@@ -0,0 +1,63 @@
+{
+  "header": {
+    "id": 52080,
+    "qr": 1,
+    "opcode": 0,
+    "aa": 0,
+    "tc": 0,
+    "rd": 1,
+    "ra": 1,
+    "res1": 0,
+    "res2": 0,
+    "res3": 0,
+    "rcode": 0
+  },
+  "qdcount": 1,
+  "ancount": 1,
+  "nscount": 0,
+  "arcount": 0,
+  "question": [
+    {
+      "name": "google.com",
+      "type": 6,
+      "typeName": "SOA",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 16,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 0
+    }
+  ],
+  "answer": [
+    {
+      "name": "google.com",
+      "type": 6,
+      "typeName": "SOA",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 50,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 1,
+      "rdstart": 40,
+      "rdlength": 38,
+      "ttl": 59,
+      "name_server": "ns3.google.com",
+      "email_addr": "dns-admin.google.com",
+      "sn": 150355194,
+      "ref": 900,
+      "ret": 900,
+      "ex": 1800,
+      "nx": 60
+    }
+  ],
+  "authority": [],
+  "edns_options": [],
+  "additional": [],
+  "byteLength": 78
+}

test/soa_test/google.com.soa.query.json

@@ -0,0 +1,19 @@
+{
+  "header": {
+    "id": 52080,
+    "qr": 0,
+    "opcode": 0,
+    "aa": 0,
+    "tc": 0,
+    "rd": 1,
+    "ra": 0,
+    "rcode": 0
+  },
+  "question": [
+    {
+      "name": "google.com",
+      "typeName": "SOA",
+      "className": "IN"
+    }
+  ]
+}

test/txt_test/google.com.txt.0.json

@@ -0,0 +1,201 @@
+{
+  "header": {
+    "id": 430,
+    "qr": 1,
+    "opcode": 0,
+    "aa": 0,
+    "tc": 0,
+    "rd": 1,
+    "ra": 1,
+    "res1": 0,
+    "res2": 0,
+    "res3": 0,
+    "rcode": 0
+  },
+  "qdcount": 1,
+  "ancount": 1,
+  "nscount": 4,
+  "arcount": 4,
+  "question": [
+    {
+      "name": "google.com",
+      "type": 16,
+      "typeName": "TXT",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 16,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 0
+    }
+  ],
+  "answer": [
+    {
+      "name": "google.com",
+      "type": 16,
+      "typeName": "TXT",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 48,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 1,
+      "rdstart": 40,
+      "rdlength": 36,
+      "ttl": 2930,
+      "data": [
+        "v=spf1 include:_spf.google.com ~all"
+      ]
+    }
+  ],
+  "authority": [
+    {
+      "name": "google.com",
+      "type": 2,
+      "typeName": "NS",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 18,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 1,
+      "rdstart": 88,
+      "rdlength": 6,
+      "ttl": 82790,
+      "data": "ns3.google.com"
+    },
+    {
+      "name": "google.com",
+      "type": 2,
+      "typeName": "NS",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 18,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 1,
+      "rdstart": 106,
+      "rdlength": 6,
+      "ttl": 82790,
+      "data": "ns4.google.com"
+    },
+    {
+      "name": "google.com",
+      "type": 2,
+      "typeName": "NS",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 18,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 1,
+      "rdstart": 124,
+      "rdlength": 6,
+      "ttl": 82790,
+      "data": "ns1.google.com"
+    },
+    {
+      "name": "google.com",
+      "type": 2,
+      "typeName": "NS",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 18,
+      "labels": [
+        "google",
+        "com"
+      ],
+      "cpcount": 1,
+      "rdstart": 142,
+      "rdlength": 6,
+      "ttl": 82790,
+      "data": "ns2.google.com"
+    }
+  ],
+  "edns_options": [],
+  "additional": [
+    {
+      "name": "ns1.google.com",
+      "type": 1,
+      "typeName": "A",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 16,
+      "labels": [
+        "ns1",
+        "google",
+        "com"
+      ],
+      "cpcount": 2,
+      "rdstart": 160,
+      "rdlength": 4,
+      "ttl": 255588,
+      "address": "216.239.32.10"
+    },
+    {
+      "name": "ns2.google.com",
+      "type": 1,
+      "typeName": "A",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 16,
+      "labels": [
+        "ns2",
+        "google",
+        "com"
+      ],
+      "cpcount": 2,
+      "rdstart": 176,
+      "rdlength": 4,
+      "ttl": 255577,
+      "address": "216.239.34.10"
+    },
+    {
+      "name": "ns3.google.com",
+      "type": 1,
+      "typeName": "A",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 16,
+      "labels": [
+        "ns3",
+        "google",
+        "com"
+      ],
+      "cpcount": 2,
+      "rdstart": 192,
+      "rdlength": 4,
+      "ttl": 255599,
+      "address": "216.239.36.10"
+    },
+    {
+      "name": "ns4.google.com",
+      "type": 1,
+      "typeName": "A",
+      "class": 1,
+      "className": "IN",
+      "byteLength": 16,
+      "labels": [
+        "ns4",
+        "google",
+        "com"
+      ],
+      "cpcount": 2,
+      "rdstart": 208,
+      "rdlength": 4,
+      "ttl": 255595,
+      "address": "216.239.38.10"
+    }
+  ],
+  "byteLength": 212
+}

test/txt_test/google.com.txt.query.json

@@ -0,0 +1,19 @@
+{
+  "header": {
+    "id": 430,
+    "qr": 0,
+    "opcode": 0,
+    "aa": 0,
+    "tc": 0,
+    "rd": 1,
+    "ra": 0,
+    "rcode": 0
+  },
+  "question": [
+    {
+      "name": "google.com",
+      "typeName": "TXT",
+      "className": "IN"
+    }
+  ]
+}