UNPKG

22.7 kBJavaScriptView Raw
1"use strict";
2Object.defineProperty(exports, "__esModule", { value: true });
3const tslib_1 = require("tslib");
4const client_common_1 = require("@neo-one/client-common");
5const node_core_1 = require("@neo-one/node-core");
6const utils_1 = require("@neo-one/utils");
7const bignumber_js_1 = tslib_1.__importDefault(require("bignumber.js"));
8const lodash_1 = tslib_1.__importDefault(require("lodash"));
9const common_1 = require("./common");
10const context_1 = require("./context");
11const createMinerTransaction = async ({ node, feeAddress, transactions, nonce, }) => {
12 const networkFee = await node_core_1.Block.calculateNetworkFee(node.blockchain.feeContext, transactions);
13 const outputs = networkFee.isZero()
14 ? []
15 : [
16 new node_core_1.Output({
17 asset: node.blockchain.settings.utilityToken.hash,
18 value: networkFee,
19 address: feeAddress,
20 }),
21 ];
22 return new node_core_1.MinerTransaction({
23 nonce: nonce.mod(node_core_1.utils.UINT_MAX.addn(1)).toNumber(),
24 outputs,
25 });
26};
27const requestChangeView = ({ context: contextIn, node, privateKey, consensusContext, }) => {
28 let context = contextIn;
29 context = context.cloneExpectedView({
30 expectedView: common_1.incrementExpectedView(context),
31 });
32 common_1.signAndRelayChangeView({ context, node, privateKey });
33 const viewNumber = context.expectedView[context.myIndex];
34 if (common_1.checkExpectedView({ context, viewNumber })) {
35 return common_1.initializeConsensusInitial({
36 blockchain: node.blockchain,
37 context,
38 viewNumber,
39 consensusContext,
40 });
41 }
42 const { secondsPerBlock } = node.blockchain.settings;
43 return {
44 context,
45 // tslint:disable-next-line no-bitwise
46 timerSeconds: secondsPerBlock << (viewNumber + 1),
47 };
48};
49exports.runConsensus = async ({ context, node, options: { privateKey, feeAddress, privateNet }, consensusContext, }) => {
50 if (context.type === 'primary' && !(context instanceof context_1.RequestSentContext)) {
51 let requestSentContext;
52 if (context instanceof context_1.SignatureSentContext) {
53 requestSentContext = context.cloneRequestSent();
54 }
55 else {
56 const nonce = node_core_1.utils.randomUInt64();
57 let mutableTransactions = Object.values(node.memPool);
58 const minerTransaction = await createMinerTransaction({
59 node,
60 feeAddress,
61 transactions: mutableTransactions,
62 nonce,
63 });
64 if (mutableTransactions.length >= node.blockchain.settings.maxTransactionsPerBlock) {
65 const mutableNetworkFees = await Promise.all(mutableTransactions.map(async (transaction) => {
66 const networkFee = await transaction.getNetworkFee(node.blockchain.feeContext);
67 return [transaction, new bignumber_js_1.default(networkFee.toString(10))];
68 }));
69 mutableNetworkFees.sort(([first, a], [second, b]) => b.div(second.size).comparedTo(a.div(first.size)));
70 mutableTransactions = lodash_1.default.take(mutableNetworkFees, node.blockchain.settings.maxTransactionsPerBlock - 1)
71 // tslint:disable-next-line no-unused
72 .map(([transaction, _unused]) => transaction);
73 }
74 mutableTransactions.unshift(minerTransaction);
75 const [previousHeader, validators] = await Promise.all([
76 node.blockchain.header.get({ hashOrIndex: context.previousHash }),
77 node.blockchain.getValidators(mutableTransactions),
78 ]);
79 const newContext = new context_1.RequestSentContext({
80 viewNumber: context.viewNumber,
81 myIndex: context.myIndex,
82 primaryIndex: context.primaryIndex,
83 expectedView: context.expectedView,
84 validators: context.validators,
85 blockReceivedTimeSeconds: context.blockReceivedTimeSeconds,
86 transactions: mutableTransactions.reduce((acc, transaction) => (Object.assign({}, acc, { [transaction.hashHex]: transaction })), {}),
87 signatures: [],
88 header: {
89 type: 'new',
90 previousHash: context.previousHash,
91 transactionHashes: mutableTransactions.map((transaction) => transaction.hashHex),
92 blockIndex: context.blockIndex,
93 nonce,
94 timestamp: Math.max(consensusContext.nowSeconds(), previousHeader.timestamp + 1),
95 nextConsensus: client_common_1.crypto.getConsensusAddress(validators),
96 },
97 });
98 const mutableSignatures = [];
99 mutableSignatures[newContext.myIndex] = client_common_1.crypto.sign({
100 message: newContext.header.message,
101 privateKey,
102 });
103 requestSentContext = newContext.cloneSignatures({ signatures: mutableSignatures });
104 }
105 if (privateNet) {
106 return common_1.checkSignatures({ node, context: requestSentContext });
107 }
108 common_1.signAndRelay({
109 context: requestSentContext,
110 node,
111 privateKey,
112 consensusMessage: new node_core_1.PrepareRequestConsensusMessage({
113 viewNumber: requestSentContext.viewNumber,
114 nonce: requestSentContext.header.consensusData,
115 nextConsensus: requestSentContext.header.nextConsensus,
116 transactionHashes: requestSentContext.transactionHashes.map((hash) => client_common_1.common.hexToUInt256(hash)),
117 minerTransaction: utils_1.utils.nullthrows(requestSentContext.transactions[requestSentContext.transactionHashes[0]]),
118 signature: utils_1.utils.nullthrows(requestSentContext.signatures[requestSentContext.myIndex]),
119 }),
120 });
121 const { secondsPerBlock } = node.blockchain.settings;
122 return {
123 context: requestSentContext,
124 // tslint:disable-next-line no-bitwise
125 timerSeconds: secondsPerBlock << (requestSentContext.viewNumber + 1),
126 };
127 }
128 if (context instanceof context_1.RequestSentContext || context.type === 'backup') {
129 return requestChangeView({
130 context,
131 node,
132 privateKey,
133 consensusContext,
134 });
135 }
136 return { context };
137};
138
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{ common, crypto, PrivateKey, UInt160 } from '@neo-one/client-common';\nimport {\n  Block,\n  MinerTransaction,\n  Node,\n  Output,\n  PrepareRequestConsensusMessage,\n  Transaction,\n  utils,\n} from '@neo-one/node-core';\nimport { utils as commonUtils } from '@neo-one/utils';\nimport BigNumber from 'bignumber.js';\nimport BN from 'bn.js';\nimport _ from 'lodash';\nimport {\n  checkExpectedView,\n  checkSignatures,\n  incrementExpectedView,\n  initializeConsensusInitial,\n  signAndRelay,\n  signAndRelayChangeView,\n} from './common';\nimport { InternalOptions } from './Consensus';\nimport { ConsensusContext } from './ConsensusContext';\nimport { Context, RequestSentContext, SignatureSentContext } from './context';\nimport { Result } from './types';\n\nconst createMinerTransaction = async ({\n  node,\n  feeAddress,\n  transactions,\n  nonce,\n}: {\n  readonly node: Node;\n  readonly feeAddress: UInt160;\n  readonly transactions: ReadonlyArray<Transaction>;\n  readonly nonce: BN;\n}) => {\n  const networkFee = await Block.calculateNetworkFee(node.blockchain.feeContext, transactions);\n\n  const outputs = networkFee.isZero()\n    ? []\n    : [\n        new Output({\n          asset: node.blockchain.settings.utilityToken.hash,\n          value: networkFee,\n          address: feeAddress,\n        }),\n      ];\n\n  return new MinerTransaction({\n    nonce: nonce.mod(utils.UINT_MAX.addn(1)).toNumber(),\n    outputs,\n  });\n};\n\nconst requestChangeView = ({\n  context: contextIn,\n  node,\n  privateKey,\n  consensusContext,\n}: {\n  readonly context: Context;\n  readonly node: Node;\n  readonly privateKey: PrivateKey;\n  readonly consensusContext: ConsensusContext;\n}): Result<Context> => {\n  let context = contextIn;\n\n  context = context.cloneExpectedView({\n    expectedView: incrementExpectedView(context),\n  });\n\n  signAndRelayChangeView({ context, node, privateKey });\n\n  const viewNumber = context.expectedView[context.myIndex];\n  if (checkExpectedView({ context, viewNumber })) {\n    return initializeConsensusInitial({\n      blockchain: node.blockchain,\n      context,\n      viewNumber,\n      consensusContext,\n    });\n  }\n\n  const { secondsPerBlock } = node.blockchain.settings;\n\n  return {\n    context,\n    // tslint:disable-next-line no-bitwise\n    timerSeconds: secondsPerBlock << (viewNumber + 1),\n  };\n};\n\nexport const runConsensus = async ({\n  context,\n  node,\n  options: { privateKey, feeAddress, privateNet },\n  consensusContext,\n}: {\n  readonly context: Context;\n  readonly node: Node;\n  readonly options: InternalOptions;\n  readonly consensusContext: ConsensusContext;\n}): Promise<Result<Context>> => {\n  if (context.type === 'primary' && !(context instanceof RequestSentContext)) {\n    let requestSentContext: RequestSentContext;\n    if (context instanceof SignatureSentContext) {\n      requestSentContext = context.cloneRequestSent();\n    } else {\n      const nonce = utils.randomUInt64();\n      let mutableTransactions = Object.values(node.memPool);\n      const minerTransaction = await createMinerTransaction({\n        node,\n        feeAddress,\n        transactions: mutableTransactions,\n        nonce,\n      });\n\n      if (mutableTransactions.length >= node.blockchain.settings.maxTransactionsPerBlock) {\n        const mutableNetworkFees = await Promise.all(\n          mutableTransactions.map<Promise<[Transaction, BigNumber]>>(async (transaction) => {\n            const networkFee = await transaction.getNetworkFee(node.blockchain.feeContext);\n\n            return [transaction, new BigNumber(networkFee.toString(10))];\n          }),\n        );\n\n        mutableNetworkFees.sort(([first, a], [second, b]) => b.div(second.size).comparedTo(a.div(first.size)));\n        mutableTransactions = _.take(mutableNetworkFees, node.blockchain.settings.maxTransactionsPerBlock - 1)\n          // tslint:disable-next-line no-unused\n          .map(([transaction, _unused]) => transaction);\n      }\n      mutableTransactions.unshift(minerTransaction);\n      const [previousHeader, validators] = await Promise.all([\n        node.blockchain.header.get({ hashOrIndex: context.previousHash }),\n        node.blockchain.getValidators(mutableTransactions),\n      ]);\n\n      const newContext = new RequestSentContext({\n        viewNumber: context.viewNumber,\n        myIndex: context.myIndex,\n        primaryIndex: context.primaryIndex,\n        expectedView: context.expectedView,\n        validators: context.validators,\n        blockReceivedTimeSeconds: context.blockReceivedTimeSeconds,\n        transactions: mutableTransactions.reduce<{ [key: string]: Transaction }>(\n          (acc, transaction) => ({\n            ...acc,\n            [transaction.hashHex]: transaction,\n          }),\n          {},\n        ),\n        signatures: [],\n        header: {\n          type: 'new',\n          previousHash: context.previousHash,\n          transactionHashes: mutableTransactions.map((transaction) => transaction.hashHex),\n\n          blockIndex: context.blockIndex,\n          nonce,\n          timestamp: Math.max(consensusContext.nowSeconds(), previousHeader.timestamp + 1),\n\n          nextConsensus: crypto.getConsensusAddress(validators),\n        },\n      });\n\n      const mutableSignatures = [];\n      mutableSignatures[newContext.myIndex] = crypto.sign({\n        message: newContext.header.message,\n        privateKey,\n      });\n\n      requestSentContext = newContext.cloneSignatures({ signatures: mutableSignatures });\n    }\n\n    if (privateNet) {\n      return checkSignatures({ node, context: requestSentContext });\n    }\n\n    signAndRelay({\n      context: requestSentContext,\n      node,\n      privateKey,\n      consensusMessage: new PrepareRequestConsensusMessage({\n        viewNumber: requestSentContext.viewNumber,\n        nonce: requestSentContext.header.consensusData,\n        nextConsensus: requestSentContext.header.nextConsensus,\n        transactionHashes: requestSentContext.transactionHashes.map((hash) => common.hexToUInt256(hash)),\n        minerTransaction: commonUtils.nullthrows(\n          requestSentContext.transactions[requestSentContext.transactionHashes[0]],\n        ) as MinerTransaction,\n        signature: commonUtils.nullthrows(requestSentContext.signatures[requestSentContext.myIndex]),\n      }),\n    });\n\n    const { secondsPerBlock } = node.blockchain.settings;\n\n    return {\n      context: requestSentContext,\n      // tslint:disable-next-line no-bitwise\n      timerSeconds: secondsPerBlock << (requestSentContext.viewNumber + 1),\n    };\n  }\n\n  if (context instanceof RequestSentContext || context.type === 'backup') {\n    return requestChangeView({\n      context,\n      node,\n      privateKey,\n      consensusContext,\n    });\n  }\n\n  return { context };\n};\n"]}