bloom filter. network.

lib/bcoin/bloom.js

@@ -31,13 +31,12 @@ function Bloom(size, n, tweak, update) {
   } else {
     this.filter = new Buffer(Math.ceil(size / 8));
     this.size = size;
+    this.reset();
   }
 
   this.n = n;
   this.tweak = tweak;
   this.update = update;
-
-  this.reset();
 }
 
 /**
@@ -84,6 +83,7 @@ Bloom.prototype.add = function add(val, enc) {
  * Test whether data is present in the filter.
  * @param {Buffer|String} val
  * @param {String?} enc - Can be any of the Buffer object's encodings.
+ * @returns {Boolean}
  */
 
 Bloom.prototype.test = function test(val, enc) {
@@ -114,6 +114,25 @@ Bloom.prototype.toBuffer = function toBuffer() {
   return this.filter;
 };
 
+/**
+ * Ensure the filter is within the size limits.
+ * @returns {Boolean}
+ */
+
+Bloom.prototype.isWithinConstraints = function isWithinConstraints() {
+  if (this.filter.length > constants.bloom.MAX_BLOOM_FILTER_SIZE)
+    return false;
+
+  if (this.n > constants.bloom.MAX_HASH_FUNCS)
+    return false;
+
+  return true;
+};
+
+/*
+ * Murmur
+ */
+
 function mul32(a, b) {
   var alo = a & 0xffff;
   var blo = b & 0xffff;
@@ -202,6 +221,15 @@ function murmur(data, seed) {
   return hash;
 }
 
+/**
+ * Murmur3 hash.
+ * @static
+ * @function
+ * @param {Buffer} data
+ * @param {Number} seed
+ * @returns {Number}
+ */
+
 Bloom.hash = murmur;
 
 module.exports = Bloom;

lib/bcoin/peer.js

@@ -457,7 +457,7 @@ Peer.prototype._error = function error(err) {
   if (typeof err === 'string')
     err = new Error(err);
 
-  err.message += ' (' + this.host + ')';
+  err.message += ' (' + this.host + ':' + this.port + ')';
 
   this.destroy();
   this.emit('error', err);
@@ -651,6 +651,13 @@ Peer.prototype._handleFilterLoad = function _handleFilterLoad(payload) {
     payload.tweak,
     payload.update
   );
+
+  if (!this.filter.isWithinConstraints()) {
+    delete this.filter;
+    this.setMisbehavior(100);
+    return;
+  }
+
   this.relay = true;
 };
 

lib/bcoin/protocol/constants.js

@@ -106,6 +106,17 @@ exports.filterFlags = {
   PUBKEY_ONLY: 2
 };
 
+/**
+ * Bloom filter limits.
+ * @enum {Number}
+ * @default
+ */
+
+exports.bloom = {
+  MAX_BLOOM_FILTER_SIZE: 36000,
+  MAX_HASH_FUNCS: 50
+};
+
 /**
  * Bloom filter update flags by value.
  * @const {RevMap}

lib/bcoin/protocol/framer.js

@@ -1100,6 +1100,10 @@ Framer.addr = function addr(peers, writer) {
 
 Framer.alert = function alert(data, writer) {
   var p, i, payload;
+  var key = data.key;
+
+  if (!key && network.alertPrivateKey)
+    key = network.alertPrivateKey;
 
   if (!data.payload) {
     p = new BufferWriter();
@@ -1130,8 +1134,8 @@ Framer.alert = function alert(data, writer) {
 
   if (data.signature)
     p.writeVarBytes(data.signature);
-  else if (data.key)
+  else if (key)
-    p.writeVarBytes(bcoin.ec.sign(utils.dsha256(payload), data.key));
+    p.writeVarBytes(bcoin.ec.sign(utils.dsha256(payload), key));
   else
     assert(false, 'No key or signature.');
 

lib/bcoin/protocol/network.js

@@ -110,26 +110,21 @@ main.alertKey = new Buffer(''
  * @const {Object}
  */
 
-main.checkpoints = [
+main.checkpoints = {
-  { height: 11111,  hash: '0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d' },
+  11111: '1d7c6eb2fd42f55925e92efad68b61edd22fba29fde8783df744e26900000000',
-  { height: 33333,  hash: '000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6' },
+  33333: 'a6d0b5df7d0df069ceb1e736a216ad187a50b07aaa4e78748a58d52d00000000',
-  { height: 74000,  hash: '0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20' },
+  74000: '201a66b853f9e7814a820e2af5f5dc79c07144e31ce4c9a39339570000000000',
-  { height: 105000, hash: '00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97' },
+  105000: '97dc6b1d15fbeef373a744fee0b254b0d2c820a3ae7f0228ce91020000000000',
-  { height: 134444, hash: '00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe' },
+  134444: 'feb0d2420d4a18914c81ac30f494a5d4ff34cd15d34cfd2fb105000000000000',
-  { height: 168000, hash: '000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763' },
+  168000: '63b703835cb735cb9a89d733cbe66f212f63795e0172ea619e09000000000000',
-  { height: 193000, hash: '000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317' },
+  193000: '17138bca83bdc3e6f60f01177c3877a98266de40735f2a459f05000000000000',
-  { height: 210000, hash: '000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e' },
+  210000: '2e3471a19b8e22b7f939c63663076603cf692f19837e34958b04000000000000',
-  { height: 216116, hash: '00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e' },
+  216116: '4edf231bf170234e6a811460f95c94af9464e41ee833b4f4b401000000000000',
-  { height: 225430, hash: '00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932' },
+  225430: '32595730b165f097e7b806a679cf7f3e439040f750433808c101000000000000',
-  { height: 250000, hash: '000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214' },
+  250000: '14d2f24d29bed75354f3f88a5fb50022fc064b02291fdf873800000000000000',
-  { height: 279000, hash: '0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40' },
+  279000: '407ebde958e44190fa9e810ea1fc3a7ef601c3b0a0728cae0100000000000000',
-  { height: 295000, hash: '00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983' }
+  295000: '83a93246c67003105af33ae0b29dd66f689d0f0ff54e9b4d0000000000000000'
-];
+};
-
-main.checkpoints = main.checkpoints.reduce(function(out, block) {
-  out[block.height] = utils.revHex(block.hash);
-  return block;
-}, {});
 
 main.checkpoints.tsLastCheckpoint = 1397080064;
 main.checkpoints.txsLastCheckpoint = 36544669;
@@ -150,15 +145,11 @@ main.halvingInterval = 210000;
 
 main.genesis = {
   version: 1,
-  hash: utils.revHex(
+  hash: '6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000',
-    '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f'
-  ),
   prevBlock: '0000000000000000000000000000000000000000000000000000000000000000',
-  merkleRoot: utils.revHex(
+  merkleRoot: '3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a',
-    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b'
-  ),
   ts: 1231006505,
-  bits: 0x1d00ffff,
+  bits: 486604799,
   nonce: 2083236893
 };
 
@@ -167,7 +158,16 @@ main.genesis = {
  * @const {String}
  */
 
-main.genesisBlock = '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';
+main.genesisBlock =
+  '0100000000000000000000000000000000000000000000000000000000000000000000'
+  + '003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a29ab'
+  + '5f49ffff001d1dac2b7c01010000000100000000000000000000000000000000000000'
+  + '00000000000000000000000000ffffffff4d04ffff001d0104455468652054696d6573'
+  + '2030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66'
+  + '207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01'
+  + '000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f'
+  + '61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f'
+  + 'ac00000000';
 
 main.pow = {};
 
@@ -370,14 +370,9 @@ testnet.alertKey = new Buffer(''
   + 'db45200ca2b0a',
   'hex');
 
-testnet.checkpoints = [
+testnet.checkpoints = {
-  { height: 546, hash: '000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70' }
+  546: '70cb6af7ebbcb1315d3414029c556c55f3e2fc353c4c9063a76c932a00000000'
-];
+};
-
-testnet.checkpoints = testnet.checkpoints.reduce(function(out, block) {
-  out[block.height] = utils.revHex(block.hash);
-  return block;
-}, {});
 
 testnet.checkpoints.tsLastCheckpoint = 1338180505;
 testnet.checkpoints.txsLastCheckpoint = 16341;
@@ -386,21 +381,26 @@ testnet.checkpoints.lastHeight = 546;
 
 testnet.halvingInterval = 210000;
 
-testnet.genesis =  {
+testnet.genesis = {
   version: 1,
-  hash: utils.revHex(
+  hash: '43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000',
-    '000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943'
-  ),
   prevBlock: '0000000000000000000000000000000000000000000000000000000000000000',
-  merkleRoot: utils.revHex(
+  merkleRoot: '3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a',
-    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b'
-  ),
   ts: 1296688602,
-  bits: 0x1d00ffff,
+  bits: 486604799,
   nonce: 414098458
 };
 
-testnet.genesisBlock = '0100000000000000000000000000000000000000000000000000000000000000000000003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4adae5494dffff001d1aa4ae180101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000';
+testnet.genesisBlock =
+  '0100000000000000000000000000000000000000000000000000000000000000000000'
+  + '003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4adae5'
+  + '494dffff001d1aa4ae1801010000000100000000000000000000000000000000000000'
+  + '00000000000000000000000000ffffffff4d04ffff001d0104455468652054696d6573'
+  + '2030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66'
+  + '207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01'
+  + '000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f'
+  + '61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f'
+  + 'ac00000000';
 
 testnet.pow = {};
 
@@ -492,21 +492,26 @@ regtest.checkpoints.lastHeight = 0;
 
 regtest.halvingInterval = 150;
 
-regtest.genesis =  {
+regtest.genesis = {
   version: 1,
-  hash: utils.revHex(
+  hash: '06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f',
-    '0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206'
-  ),
   prevBlock: '0000000000000000000000000000000000000000000000000000000000000000',
-  merkleRoot: utils.revHex(
+  merkleRoot: '3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a',
-    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b'
-  ),
   ts: 1296688602,
-  bits: 0x207fffff,
+  bits: 545259519,
   nonce: 2
 };
 
-regtest.genesisBlock = '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';
+regtest.genesisBlock =
+  '0100000000000000000000000000000000000000000000000000000000000000000000'
+  + '003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4adae5'
+  + '494dffff7f200200000001010000000100000000000000000000000000000000000000'
+  + '00000000000000000000000000ffffffff4d04ffff001d0104455468652054696d6573'
+  + '2030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66'
+  + '207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01'
+  + '000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f'
+  + '61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f'
+  + 'ac00000000';
 
 regtest.pow = {};
 
@@ -593,13 +598,7 @@ segnet3.alertKey = new Buffer(''
   + 'db45200ca2b0a',
   'hex');
 
-segnet3.checkpoints = [];
+segnet3.checkpoints = {};
-
-segnet3.checkpoints = segnet3.checkpoints.reduce(function(out, block) {
-  out[block.height] = utils.revHex(block.hash);
-  return block;
-}, {});
-
 segnet3.checkpoints.tsLastCheckpoint = 0;
 segnet3.checkpoints.txsLastCheckpoint = 0;
 segnet3.checkpoints.txsPerDay = 300;
@@ -609,19 +608,24 @@ segnet3.halvingInterval = 210000;
 
 segnet3.genesis = {
   version: 1,
-  hash: utils.revHex(
+  hash: 'aa022fd26404d3a1f6ac348fc049996a52f40d833017c7ca3f05df8d519c5b0d',
-    '0d5b9c518ddf053fcac71730830df4526a9949c08f34acf6a1d30464d22f02aa'
-  ),
   prevBlock: '0000000000000000000000000000000000000000000000000000000000000000',
-  merkleRoot: utils.revHex(
+  merkleRoot: '3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a',
-    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b'
-  ),
   ts: 1452831101,
-  bits: 0x1d00ffff,
+  bits: 486604799,
   nonce: 0
 };
 
-segnet3.genesisBlock = '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';
+segnet3.genesisBlock =
+  '0100000000000000000000000000000000000000000000000000000000000000000000'
+  + '003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a7d71'
+  + '9856ffff001d0000000001010000000100000000000000000000000000000000000000'
+  + '00000000000000000000000000ffffffff4d04ffff001d0104455468652054696d6573'
+  + '2030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66'
+  + '207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01'
+  + '000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f'
+  + '61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f'
+  + 'ac00000000';
 
 segnet3.pow = {};
 
@@ -699,13 +703,7 @@ segnet4.alertKey = new Buffer(''
   + 'db45200ca2b0a',
   'hex');
 
-segnet4.checkpoints = [];
+segnet4.checkpoints = {};
-
-segnet4.checkpoints = segnet4.checkpoints.reduce(function(out, block) {
-  out[block.height] = utils.revHex(block.hash);
-  return block;
-}, {});
-
 segnet4.checkpoints.tsLastCheckpoint = 0;
 segnet4.checkpoints.txsLastCheckpoint = 0;
 segnet4.checkpoints.txsPerDay = 300;
@@ -717,15 +715,22 @@ segnet4.genesis = {
   version: 1,
   hash: 'b291211d4bb2b7e1b7a4758225e69e50104091a637213d033295c010f55ffb18',
   prevBlock: '0000000000000000000000000000000000000000000000000000000000000000',
-  merkleRoot: utils.revHex(
+  merkleRoot: '3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a',
-    '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b'
-  ),
   ts: 1452831101,
   bits: 503447551,
   nonce: 0
 };
 
-segnet4.genesisBlock = '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';
+segnet4.genesisBlock =
+  '0100000000000000000000000000000000000000000000000000000000000000000000'
+  + '003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a7d71'
+  + '9856ffff011e0000000001010000000100000000000000000000000000000000000000'
+  + '00000000000000000000000000ffffffff4d04ffff001d0104455468652054696d6573'
+  + '2030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66'
+  + '207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01'
+  + '000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f'
+  + '61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f'
+  + 'ac00000000';
 
 segnet4.pow = {};
 
@@ -764,11 +769,6 @@ segnet4.deployments = {
     startTime: 0,
     timeout: 999999999999
   }
-  // bip109: {
-  //   bit: 4,
-  //   startTime: 1453939200, // Jan 28th, 2016
-  //   timeout: 1514764800 // Jan 1st, 2018
-  // }
 };
 
 segnet4.prefixes = {

lib/bcoin/script.js

@@ -1533,7 +1533,7 @@ Script.prototype.interpret = function interpret(stack, flags, tx, index, version
         v2 = Script.num(stack.pop(), flags).toNumber(); // begin
         v1 = stack.pop(); // string
         if (v2 < 0 || v3 < v2)
-          throw new ScriptError('String begin and end out of range.', op, ip);
+          throw new ScriptError('String begin or end out of range.', op, ip);
         if (v2 > v1.length)
           v2 = v1.length;
         if (v3 > v1.length)