1 | ;
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | const tslib_1 = require("tslib");
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4 | const client_common_1 = require("@neo-one/client-common");
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5 | const utils_1 = require("@neo-one/utils");
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6 | const lodash_1 = tslib_1.__importDefault(require("lodash"));
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7 | const AssetType_1 = require("../AssetType");
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8 | const constants_1 = require("../constants");
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9 | const errors_1 = require("../errors");
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10 | const ScriptContainer_1 = require("../ScriptContainer");
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11 | const utils_2 = require("../utils");
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12 | const Witness_1 = require("../Witness");
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13 | const attribute_1 = require("./attribute");
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14 | const common_1 = require("./common");
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15 | const Input_1 = require("./Input");
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16 | const Output_1 = require("./Output");
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17 | const TransactionType_1 = require("./TransactionType");
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18 | const getUtilityValue = ({ outputs, utilityToken, }) => outputs
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19 | .filter((output) => client_common_1.common.uInt256Equal(output.asset, utilityToken.hash))
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20 | .reduce((acc, output) => acc.add(output.value), utils_2.utils.ZERO);
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21 | function TransactionBase(Base) {
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22 | class TransactionBaseClass extends Base {
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23 | constructor() {
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24 | super(...arguments);
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25 | this.equals = utils_2.utils.equals(this.constructor, this, (other) => client_common_1.common.uInt256Equal(this.hash, other.hash));
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26 | this.toKeyString = utils_2.utils.toKeyString(TransactionBase, () => this.hashHex);
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27 | this.getSortedScriptHashesForVerifying = utils_2.utils.lazyAsync(async (options) => {
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28 | const hashes = await this.getScriptHashesForVerifying(options);
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29 | return [...hashes].sort();
|
30 | });
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31 | this.sizeInternal = utils_2.utils.lazy(() => client_common_1.IOHelper.sizeOfUInt8 +
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32 | client_common_1.IOHelper.sizeOfArray(this.attributes, (attribute) => attribute.size) +
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33 | client_common_1.IOHelper.sizeOfArray(this.inputs, (input) => input.size) +
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34 | client_common_1.IOHelper.sizeOfArray(this.outputs, (output) => output.size) +
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35 | client_common_1.IOHelper.sizeOfArray(this.scripts, (script) => script.size) +
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36 | this.sizeExclusive());
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37 | this.networkFee = utils_2.utils.lazyAsync(async (context) => {
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38 | const { getOutput, utilityToken } = context;
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39 | const outputsForInputs = await Promise.all(this.inputs.map(getOutput));
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40 | const inputValue = getUtilityValue({
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41 | outputs: outputsForInputs,
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42 | utilityToken,
|
43 | });
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44 | const outputValue = getUtilityValue({
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45 | outputs: this.outputs,
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46 | utilityToken,
|
47 | });
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48 | const result = inputValue.sub(outputValue).sub(this.getSystemFee(context));
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49 | return result.lt(utils_2.utils.ZERO) ? utils_2.utils.ZERO : result;
|
50 | });
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51 | this.getReferencesInternal = utils_2.utils.lazyAsync(async ({ getOutput }) => Promise.all(this.inputs.map(async (input) => getOutput(input))));
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52 | this.getTransactionResultsInternal = utils_2.utils.lazyAsync(async ({ getOutput }) => {
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53 | const inputOutputs = await this.getReferences({ getOutput });
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54 | const mutableResults = {};
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55 | const addOutputs = (outputs, negative) => {
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56 | outputs.forEach((output) => {
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57 | const key = client_common_1.common.uInt256ToHex(output.asset);
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58 | let result = mutableResults[key];
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59 | if (result === undefined) {
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60 | mutableResults[key] = result = utils_2.utils.ZERO;
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61 | }
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62 | mutableResults[key] = result.add(negative === true ? output.value.neg() : output.value);
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63 | });
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64 | };
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65 | addOutputs(inputOutputs);
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66 | addOutputs(this.outputs, true);
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67 | return lodash_1.default.pickBy(mutableResults, (value) => value !== undefined && !value.eq(utils_2.utils.ZERO));
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68 | });
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69 | this.baseGetScriptHashesForVerifyingInternal = utils_2.utils.lazyAsync(async ({ getOutput, getAsset }) => {
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70 | const [inputHashes, outputHashes] = await Promise.all([
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71 | Promise.all(this.inputs.map(async (input) => {
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72 | const output = await getOutput(input);
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73 | return client_common_1.common.uInt160ToHex(output.address);
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74 | })),
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75 | Promise.all(this.outputs.map(async (output) => {
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76 | const asset = await getAsset({ hash: output.asset });
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77 | if (client_common_1.hasFlag(asset.type, AssetType_1.AssetType.DutyFlag)) {
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78 | return client_common_1.common.uInt160ToHex(output.address);
|
79 | }
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80 | return undefined;
|
81 | })).then((hashes) => hashes.filter(utils_1.utils.notNull)),
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82 | ]);
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83 | const attributeHashes = this.attributes
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84 | .map((attribute) => attribute instanceof attribute_1.UInt160Attribute && attribute.usage === attribute_1.AttributeUsage.Script
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85 | ? client_common_1.common.uInt160ToHex(attribute.value)
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86 | : undefined)
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87 | .filter(utils_1.utils.notNull);
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88 | return new Set([...inputHashes, ...outputHashes, ...attributeHashes]);
|
89 | });
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90 | this.sizeExclusive = () => 0;
|
91 | }
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92 | static deserializeTransactionBaseStartWireBase({ reader, }) {
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93 | const type = client_common_1.assertTransactionType(reader.readUInt8());
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94 | const version = reader.readUInt8();
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95 | return { type, version };
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96 | }
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97 | static deserializeTransactionBaseEndWireBase(options) {
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98 | const { reader } = options;
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99 | const attributes = reader.readArray(() => attribute_1.deserializeAttributeWireBase(options), client_common_1.MAX_TRANSACTION_ATTRIBUTES);
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100 | const inputs = reader.readArray(() => Input_1.Input.deserializeWireBase(options));
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101 | const outputs = reader.readArray(() => Output_1.Output.deserializeWireBase(options), utils_2.utils.USHORT_MAX_NUMBER + 1);
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102 | const scripts = reader.readArray(() => Witness_1.Witness.deserializeWireBase(options));
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103 | return { attributes, inputs, outputs, scripts };
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104 | }
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105 | static deserializeWireBase(_options) {
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106 | throw new Error('Not Implemented');
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107 | }
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108 | static deserializeWire(options) {
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109 | return this.deserializeWireBase({
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110 | context: options.context,
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111 | reader: new utils_2.BinaryReader(options.buffer),
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112 | });
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113 | }
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114 | get size() {
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115 | return this.sizeInternal();
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116 | }
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117 | async serializeTransactionBaseJSON(context) {
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118 | const [networkFee, transactionData] = await Promise.all([
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119 | this.getNetworkFee(context.feeContext),
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120 | context.tryGetTransactionData(this),
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121 | ]);
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122 | return {
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123 | txid: client_common_1.common.uInt256ToString(this.hashHex),
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124 | size: this.size,
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125 | version: this.version,
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126 | attributes: this.attributes.map((attribute) => attribute.serializeJSON(context)),
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127 | vin: this.inputs.map((input) => input.serializeJSON(context)),
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128 | vout: this.outputs.map((output, index) => output.serializeJSON(context, index)),
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129 | scripts: this.scripts.map((script) => script.serializeJSON(context)),
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130 | sys_fee: client_common_1.JSONHelper.writeFixed8(this.getSystemFee(context.feeContext)),
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131 | net_fee: client_common_1.JSONHelper.writeFixed8(networkFee),
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132 | data: transactionData === undefined
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133 | ? undefined
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134 | : {
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135 | blockHash: client_common_1.common.uInt256ToString(transactionData.blockHash),
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136 | blockIndex: transactionData.startHeight,
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137 | transactionIndex: transactionData.index,
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138 | globalIndex: client_common_1.JSONHelper.writeUInt64(transactionData.globalIndex),
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139 | },
|
140 | };
|
141 | }
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142 | async serializeJSON(_context) {
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143 | throw new Error('Not Implemented');
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144 | }
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145 | async getNetworkFee(context) {
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146 | return this.networkFee(context);
|
147 | }
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148 | getSystemFee({ fees }) {
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149 | const fee = fees[this.type];
|
150 | return fee === undefined ? utils_2.utils.ZERO : fee;
|
151 | }
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152 | async getReferences(options) {
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153 | return this.getReferencesInternal(options);
|
154 | }
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155 | async getTransactionResults(options) {
|
156 | return this.getTransactionResultsInternal(options);
|
157 | }
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158 | async getScriptHashesForVerifying(options) {
|
159 | return this.baseGetScriptHashesForVerifyingInternal(options);
|
160 | }
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161 | async verify(options) {
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162 | if (this.size > constants_1.MAX_TRANSACTION_SIZE) {
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163 | throw new errors_1.VerifyError('Transaction too large.');
|
164 | }
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165 | const { memPool = [] } = options;
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166 | if (common_1.hasDuplicateInputs(this.inputs)) {
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167 | throw new errors_1.VerifyError('Duplicate inputs');
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168 | }
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169 | if (memPool.some((tx) => !tx.equals(this) && common_1.hasIntersectingInputs(tx.inputs, this.inputs))) {
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170 | throw new errors_1.VerifyError('Input already exists in mempool');
|
171 | }
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172 | if (this.attributes.filter((attribute) => attribute.usage === attribute_1.AttributeUsage.ECDH02 || attribute.usage === attribute_1.AttributeUsage.ECDH03).length > 1) {
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173 | throw new errors_1.VerifyError('Too many ECDH attributes.');
|
174 | }
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175 | const [results] = await Promise.all([
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176 | this.verifyScripts(options),
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177 | this.verifyDoubleSpend(options),
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178 | this.verifyOutputs(options),
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179 | this.verifyTransactionResults(options),
|
180 | ]);
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181 | return results;
|
182 | }
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183 | async verifyDoubleSpend({ isSpent }) {
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184 | const isDoubleSpend = await Promise.all(this.inputs.map(isSpent));
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185 | if (isDoubleSpend.some((value) => value)) {
|
186 | throw new errors_1.VerifyError('Transaction is a double spend');
|
187 | }
|
188 | }
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189 | async verifyOutputs({ getAsset, currentHeight }) {
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190 | const outputsGrouped = Object.entries(lodash_1.default.groupBy(this.outputs, (output) => client_common_1.common.uInt256ToHex(output.asset)));
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191 | const hasInvalidOutputs = await Promise.all(outputsGrouped.map(async ([assetHex, outputs]) => {
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192 | const asset = await getAsset({ hash: client_common_1.common.hexToUInt256(assetHex) });
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193 | if (asset.expiration <= currentHeight + 1 &&
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194 | asset.type !== AssetType_1.AssetType.GoverningToken &&
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195 | asset.type !== AssetType_1.AssetType.UtilityToken) {
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196 | return true;
|
197 | }
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198 | return outputs.some((output) => !output.value.mod(utils_2.utils.TEN.pow(utils_2.utils.EIGHT.subn(asset.precision))).eq(utils_2.utils.ZERO));
|
199 | }));
|
200 | if (hasInvalidOutputs.some((value) => value)) {
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201 | throw new errors_1.VerifyError('Transaction has invalid output');
|
202 | }
|
203 | }
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204 | async verifyTransactionResults({ getOutput, utilityToken, governingToken, fees, registerValidatorFee, }) {
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205 | const results = await this.getTransactionResults({ getOutput });
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206 | const resultsDestroy = Object.entries(results).filter(([_key, value]) => value.gt(utils_2.utils.ZERO));
|
207 | if (resultsDestroy.length > 1 ||
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208 | (resultsDestroy.length === 1 &&
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209 | !client_common_1.common.uInt256Equal(client_common_1.common.hexToUInt256(resultsDestroy[0][0]), utilityToken.hash))) {
|
210 | throw new errors_1.VerifyError('Invalid destroyed output.');
|
211 | }
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212 | const feeContext = {
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213 | getOutput,
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214 | governingToken,
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215 | utilityToken,
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216 | fees,
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217 | registerValidatorFee,
|
218 | };
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219 | const systemFee = this.getSystemFee(feeContext);
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220 | if (systemFee.gt(utils_2.utils.ZERO) && (resultsDestroy.length === 0 || resultsDestroy[0][1].lt(systemFee))) {
|
221 | throw new errors_1.VerifyError('Not enough output value for system fee.');
|
222 | }
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223 | const resultsIssue = Object.entries(results).filter(([__, value]) => value.lt(utils_2.utils.ZERO));
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224 | switch (this.type) {
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225 | case TransactionType_1.TransactionType.Miner:
|
226 | case TransactionType_1.TransactionType.Claim:
|
227 | if (resultsIssue.some(([assetHex]) => !client_common_1.common.uInt256Equal(client_common_1.common.hexToUInt256(assetHex), utilityToken.hash))) {
|
228 | throw new errors_1.VerifyError('Invalid miner/claim result');
|
229 | }
|
230 | break;
|
231 | case TransactionType_1.TransactionType.Issue:
|
232 | if (resultsIssue.some(([assetHex, __]) => client_common_1.common.uInt256Equal(client_common_1.common.hexToUInt256(assetHex), utilityToken.hash))) {
|
233 | throw new errors_1.VerifyError('Invalid issue result');
|
234 | }
|
235 | break;
|
236 | default:
|
237 | if (resultsIssue.length > 0) {
|
238 | throw new errors_1.VerifyError('Invalid results.');
|
239 | }
|
240 | }
|
241 | }
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242 | async verifyScripts({ getAsset, getOutput, verifyScript, }) {
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243 | const hashesArr = await this.getSortedScriptHashesForVerifying({
|
244 | getAsset,
|
245 | getOutput,
|
246 | });
|
247 | if (hashesArr.length !== this.scripts.length) {
|
248 | throw new errors_1.VerifyError(`Invalid witnesses. Found ${hashesArr.length} hashes and ${this.scripts.length} scripts.`);
|
249 | }
|
250 | const hashes = hashesArr.map((value) => client_common_1.common.hexToUInt160(value));
|
251 | return Promise.all(lodash_1.default.zip(hashes, this.scripts).map(async ([hash, witness]) => verifyScript({
|
252 | scriptContainer: {
|
253 | type: ScriptContainer_1.ScriptContainerType.Transaction,
|
254 | value: this,
|
255 | },
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256 | hash: hash,
|
257 | witness: witness,
|
258 | })));
|
259 | }
|
260 | }
|
261 | TransactionBaseClass.WitnessConstructor = Witness_1.Witness;
|
262 | return TransactionBaseClass;
|
263 | }
|
264 | exports.TransactionBase = TransactionBase;
|
265 |
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266 | //# 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{\n  assertTransactionType,\n  common,\n  ECPoint,\n  hasFlag,\n  IOHelper,\n  JSONHelper,\n  MAX_TRANSACTION_ATTRIBUTES,\n  TransactionBaseJSON,\n  TransactionBaseModel,\n  TransactionBaseModelAdd,\n  TransactionBaseModelAddWithType,\n  UInt160,\n  UInt160Hex,\n} from '@neo-one/client-common';\nimport { Constructor, utils as commonUtils } from '@neo-one/utils';\nimport { BN } from 'bn.js';\nimport _ from 'lodash';\nimport { Account, AccountKey } from '../Account';\nimport { Asset, AssetKey } from '../Asset';\nimport { AssetType } from '../AssetType';\nimport { MAX_TRANSACTION_SIZE } from '../constants';\nimport { Equals, EquatableKey } from '../Equatable';\nimport { VerifyError } from '../errors';\nimport { ScriptContainerType } from '../ScriptContainer';\nimport {\n  DeserializeWireBaseOptions,\n  DeserializeWireOptions,\n  SerializableJSON,\n  SerializeJSONContext,\n} from '../Serializable';\nimport { BinaryReader, utils } from '../utils';\nimport { Validator } from '../Validator';\nimport { VerifyScript, VerifyScriptResult } from '../vm';\nimport { Witness } from '../Witness';\nimport { Attribute, AttributeUsage, deserializeAttributeWireBase, UInt160Attribute } from './attribute';\nimport { hasDuplicateInputs, hasIntersectingInputs } from './common';\nimport { Input } from './Input';\nimport { Output, OutputKey } from './Output';\nimport { RegisterTransaction } from './RegisterTransaction';\nimport { Transaction } from './Transaction';\nimport { TransactionType } from './TransactionType';\n\nexport interface TransactionBaseAdd extends TransactionBaseModelAdd<Attribute, Input, Output, Witness> {}\nexport interface TransactionBaseAddWithType<Type extends TransactionType>\n  extends TransactionBaseModelAddWithType<Type, Attribute, Input, Output, Witness> {}\n\nconst getUtilityValue = ({\n  outputs,\n  utilityToken,\n}: {\n  readonly outputs: readonly Output[];\n  readonly utilityToken: RegisterTransaction;\n}) =>\n  outputs\n    .filter((output) => common.uInt256Equal(output.asset, utilityToken.hash))\n    .reduce((acc, output) => acc.add(output.value), utils.ZERO);\n\nexport interface FeeContext {\n  readonly getOutput: (input: Input) => Promise<Output>;\n  readonly governingToken: RegisterTransaction;\n  readonly utilityToken: RegisterTransaction;\n  readonly fees: { [K in TransactionType]?: BN };\n  readonly registerValidatorFee: BN;\n}\n\nexport interface TransactionGetScriptHashesForVerifyingOptions {\n  readonly getOutput: (key: OutputKey) => Promise<Output>;\n  readonly getAsset: (key: AssetKey) => Promise<Asset>;\n}\n\nexport interface GetReferencesOptions {\n  readonly getOutput: (key: OutputKey) => Promise<Output>;\n}\n\nexport interface GetTransactionResultsOptions {\n  readonly getOutput: (key: OutputKey) => Promise<Output>;\n}\n\nexport interface TransactionVerifyOptions {\n  readonly calculateClaimAmount: (inputs: readonly Input[]) => Promise<BN>;\n  readonly isSpent: (key: OutputKey) => Promise<boolean>;\n  readonly getAsset: (key: AssetKey) => Promise<Asset>;\n  readonly getOutput: (key: OutputKey) => Promise<Output>;\n  readonly tryGetAccount: (key: AccountKey) => Promise<Account | undefined>;\n  readonly standbyValidators: readonly ECPoint[];\n  readonly getAllValidators: () => Promise<readonly Validator[]>;\n  readonly verifyScript: VerifyScript;\n  readonly currentHeight: number;\n  readonly governingToken: RegisterTransaction;\n  readonly utilityToken: RegisterTransaction;\n  readonly fees: { [K in TransactionType]?: BN };\n  readonly registerValidatorFee: BN;\n  readonly memPool?: readonly Transaction[];\n}\n\n/** @internal */\nexport function TransactionBase<\n  Type extends TransactionType,\n  TransactionJSON,\n  TBase extends Constructor<TransactionBaseModel<Type, Attribute, Input, Output, Witness>>\n>(Base: TBase) {\n  abstract class TransactionBaseClass extends Base implements EquatableKey, SerializableJSON<TransactionJSON> {\n    public static deserializeTransactionBaseStartWireBase({\n      reader,\n    }: DeserializeWireBaseOptions): { readonly type: TransactionType; readonly version: number } {\n      const type = assertTransactionType(reader.readUInt8());\n      const version = reader.readUInt8();\n\n      return { type, version };\n    }\n\n    public static deserializeTransactionBaseEndWireBase(\n      options: DeserializeWireBaseOptions,\n    ): {\n      readonly attributes: readonly Attribute[];\n      readonly inputs: readonly Input[];\n      readonly outputs: readonly Output[];\n      readonly scripts: readonly Witness[];\n    } {\n      const { reader } = options;\n      const attributes = reader.readArray(() => deserializeAttributeWireBase(options), MAX_TRANSACTION_ATTRIBUTES);\n\n      const inputs = reader.readArray(() => Input.deserializeWireBase(options));\n      const outputs = reader.readArray(() => Output.deserializeWireBase(options), utils.USHORT_MAX_NUMBER + 1);\n\n      const scripts = reader.readArray(() => Witness.deserializeWireBase(options));\n\n      return { attributes, inputs, outputs, scripts };\n    }\n\n    // tslint:disable-next-line no-any\n    public static deserializeWireBase(_options: DeserializeWireBaseOptions): any {\n      throw new Error('Not Implemented');\n    }\n\n    // tslint:disable-next-line no-any\n    public static deserializeWire(options: DeserializeWireOptions): any {\n      return this.deserializeWireBase({\n        context: options.context,\n        reader: new BinaryReader(options.buffer),\n      });\n    }\n\n    protected static readonly WitnessConstructor: Constructor<Witness> = Witness;\n\n    public readonly equals: Equals = utils.equals(\n      // tslint:disable-next-line no-any\n      this.constructor as any,\n      this,\n      (other: TransactionBaseClass) => common.uInt256Equal(this.hash, other.hash),\n    );\n    public readonly toKeyString = utils.toKeyString(TransactionBase, () => this.hashHex);\n    public readonly getSortedScriptHashesForVerifying = utils.lazyAsync(\n      async (options: TransactionGetScriptHashesForVerifyingOptions) => {\n        const hashes = await this.getScriptHashesForVerifying(options);\n\n        // tslint:disable-next-line no-array-mutation\n        return [...hashes].sort();\n      },\n    );\n    private readonly sizeInternal = utils.lazy(\n      () =>\n        IOHelper.sizeOfUInt8 +\n        IOHelper.sizeOfArray(this.attributes, (attribute) => attribute.size) +\n        IOHelper.sizeOfArray(this.inputs, (input) => input.size) +\n        IOHelper.sizeOfArray(this.outputs, (output) => output.size) +\n        IOHelper.sizeOfArray(this.scripts, (script) => script.size) +\n        this.sizeExclusive(),\n    );\n    private readonly networkFee = utils.lazyAsync(\n      async (context: FeeContext): Promise<BN> => {\n        const { getOutput, utilityToken } = context;\n\n        const outputsForInputs = await Promise.all(this.inputs.map(getOutput));\n\n        const inputValue = getUtilityValue({\n          outputs: outputsForInputs,\n          utilityToken,\n        });\n\n        const outputValue = getUtilityValue({\n          outputs: this.outputs,\n          utilityToken,\n        });\n\n        const result = inputValue.sub(outputValue).sub(this.getSystemFee(context));\n\n        return result.lt(utils.ZERO) ? utils.ZERO : result;\n      },\n    );\n    private readonly getReferencesInternal = utils.lazyAsync(async ({ getOutput }: GetReferencesOptions) =>\n      Promise.all(this.inputs.map(async (input) => getOutput(input))),\n    );\n    private readonly getTransactionResultsInternal = utils.lazyAsync(\n      async ({ getOutput }: GetTransactionResultsOptions): Promise<{ readonly [K in string]?: BN }> => {\n        const inputOutputs = await this.getReferences({ getOutput });\n        const mutableResults: { [K in string]?: BN } = {};\n        const addOutputs = (outputs: readonly Output[], negative?: boolean) => {\n          outputs.forEach((output) => {\n            const key = common.uInt256ToHex(output.asset);\n            let result = mutableResults[key];\n            if (result === undefined) {\n              mutableResults[key] = result = utils.ZERO;\n            }\n\n            mutableResults[key] = result.add(negative === true ? output.value.neg() : output.value);\n          });\n        };\n        addOutputs(inputOutputs);\n        addOutputs(this.outputs, true);\n\n        return _.pickBy(mutableResults, (value) => value !== undefined && !value.eq(utils.ZERO));\n      },\n    );\n    private readonly baseGetScriptHashesForVerifyingInternal = utils.lazyAsync(\n      async ({ getOutput, getAsset }: TransactionGetScriptHashesForVerifyingOptions) => {\n        const [inputHashes, outputHashes] = await Promise.all([\n          Promise.all(\n            this.inputs.map(async (input) => {\n              const output = await getOutput(input);\n\n              return common.uInt160ToHex(output.address);\n            }),\n          ),\n\n          Promise.all(\n            this.outputs.map(async (output) => {\n              const asset = await getAsset({ hash: output.asset });\n              if (hasFlag(asset.type, AssetType.DutyFlag)) {\n                return common.uInt160ToHex(output.address);\n              }\n\n              return undefined;\n            }),\n          ).then((hashes) => hashes.filter(commonUtils.notNull)),\n        ]);\n\n        const attributeHashes = this.attributes\n          .map((attribute) =>\n            attribute instanceof UInt160Attribute && attribute.usage === AttributeUsage.Script\n              ? common.uInt160ToHex(attribute.value)\n              : undefined,\n          )\n          .filter(commonUtils.notNull);\n\n        return new Set([...inputHashes, ...outputHashes, ...attributeHashes]);\n      },\n    );\n\n    public get size(): number {\n      return this.sizeInternal();\n    }\n\n    public async serializeTransactionBaseJSON(context: SerializeJSONContext): Promise<TransactionBaseJSON> {\n      const [networkFee, transactionData] = await Promise.all([\n        this.getNetworkFee(context.feeContext),\n        // tslint:disable-next-line no-any\n        context.tryGetTransactionData(this as any),\n      ]);\n\n      return {\n        txid: common.uInt256ToString(this.hashHex),\n        size: this.size,\n        version: this.version,\n        attributes: this.attributes.map((attribute) => attribute.serializeJSON(context)),\n\n        vin: this.inputs.map((input) => input.serializeJSON(context)),\n        vout: this.outputs.map((output, index) => output.serializeJSON(context, index)),\n\n        scripts: this.scripts.map((script) => script.serializeJSON(context)),\n        sys_fee: JSONHelper.writeFixed8(this.getSystemFee(context.feeContext)),\n        net_fee: JSONHelper.writeFixed8(networkFee),\n        data:\n          transactionData === undefined\n            ? undefined\n            : {\n                blockHash: common.uInt256ToString(transactionData.blockHash),\n                blockIndex: transactionData.startHeight,\n                transactionIndex: transactionData.index,\n                globalIndex: JSONHelper.writeUInt64(transactionData.globalIndex),\n              },\n      };\n    }\n\n    public async serializeJSON(_context: SerializeJSONContext): Promise<TransactionJSON> {\n      throw new Error('Not Implemented');\n    }\n\n    public async getNetworkFee(context: FeeContext): Promise<BN> {\n      return this.networkFee(context);\n    }\n\n    public getSystemFee({ fees }: FeeContext): BN {\n      const fee: BN | undefined = fees[this.type];\n\n      return fee === undefined ? utils.ZERO : fee;\n    }\n\n    public async getReferences(options: GetReferencesOptions): Promise<readonly Output[]> {\n      return this.getReferencesInternal(options);\n    }\n\n    public async getTransactionResults(options: GetTransactionResultsOptions): Promise<{ readonly [key: string]: BN }> {\n      return this.getTransactionResultsInternal(options) as Promise<{ readonly [key: string]: BN }>;\n    }\n\n    public async getScriptHashesForVerifying(\n      options: TransactionGetScriptHashesForVerifyingOptions,\n    ): Promise<Set<UInt160Hex>> {\n      return this.baseGetScriptHashesForVerifyingInternal(options);\n    }\n\n    public async verify(options: TransactionVerifyOptions): Promise<readonly VerifyScriptResult[]> {\n      if (this.size > MAX_TRANSACTION_SIZE) {\n        throw new VerifyError('Transaction too large.');\n      }\n\n      const { memPool = [] } = options;\n      if (hasDuplicateInputs(this.inputs)) {\n        throw new VerifyError('Duplicate inputs');\n      }\n\n      if (memPool.some((tx) => !tx.equals(this) && hasIntersectingInputs(tx.inputs, this.inputs))) {\n        throw new VerifyError('Input already exists in mempool');\n      }\n\n      if (\n        this.attributes.filter(\n          (attribute) => attribute.usage === AttributeUsage.ECDH02 || attribute.usage === AttributeUsage.ECDH03,\n        ).length > 1\n      ) {\n        throw new VerifyError('Too many ECDH attributes.');\n      }\n\n      const [results] = await Promise.all([\n        this.verifyScripts(options),\n        this.verifyDoubleSpend(options),\n        this.verifyOutputs(options),\n        this.verifyTransactionResults(options),\n      ]);\n\n      return results;\n    }\n\n    protected readonly sizeExclusive: () => number = () => 0;\n\n    private async verifyDoubleSpend({ isSpent }: TransactionVerifyOptions): Promise<void> {\n      const isDoubleSpend = await Promise.all(this.inputs.map(isSpent));\n\n      if (isDoubleSpend.some((value) => value)) {\n        throw new VerifyError('Transaction is a double spend');\n      }\n    }\n\n    private async verifyOutputs({ getAsset, currentHeight }: TransactionVerifyOptions): Promise<void> {\n      const outputsGrouped = Object.entries(_.groupBy(this.outputs, (output) => common.uInt256ToHex(output.asset)));\n\n      const hasInvalidOutputs = await Promise.all(\n        outputsGrouped.map(async ([assetHex, outputs]) => {\n          const asset = await getAsset({ hash: common.hexToUInt256(assetHex) });\n          if (\n            asset.expiration <= currentHeight + 1 &&\n            asset.type !== AssetType.GoverningToken &&\n            asset.type !== AssetType.UtilityToken\n          ) {\n            return true;\n          }\n\n          return outputs.some(\n            (output) => !output.value.mod(utils.TEN.pow(utils.EIGHT.subn(asset.precision))).eq(utils.ZERO),\n          );\n        }),\n      );\n\n      if (hasInvalidOutputs.some((value) => value)) {\n        throw new VerifyError('Transaction has invalid output');\n      }\n    }\n\n    private async verifyTransactionResults({\n      getOutput,\n      utilityToken,\n      governingToken,\n      fees,\n      registerValidatorFee,\n    }: TransactionVerifyOptions): Promise<void> {\n      const results = await this.getTransactionResults({ getOutput });\n      const resultsDestroy = Object.entries(results).filter(\n        // tslint:disable-next-line no-unused\n        ([_key, value]) => value.gt(utils.ZERO),\n      );\n\n      if (\n        resultsDestroy.length > 1 ||\n        (resultsDestroy.length === 1 &&\n          !common.uInt256Equal(common.hexToUInt256(resultsDestroy[0][0]), utilityToken.hash))\n      ) {\n        throw new VerifyError('Invalid destroyed output.');\n      }\n\n      const feeContext = {\n        getOutput,\n        governingToken,\n        utilityToken,\n        fees,\n        registerValidatorFee,\n      };\n\n      const systemFee = this.getSystemFee(feeContext);\n      if (systemFee.gt(utils.ZERO) && (resultsDestroy.length === 0 || resultsDestroy[0][1].lt(systemFee))) {\n        throw new VerifyError('Not enough output value for system fee.');\n      }\n\n      // tslint:disable-next-line no-unused\n      const resultsIssue = Object.entries(results).filter(([__, value]) => value.lt(utils.ZERO));\n\n      switch (this.type) {\n        case TransactionType.Miner:\n        case TransactionType.Claim:\n          if (\n            resultsIssue.some(([assetHex]) => !common.uInt256Equal(common.hexToUInt256(assetHex), utilityToken.hash))\n          ) {\n            throw new VerifyError('Invalid miner/claim result');\n          }\n          break;\n        case TransactionType.Issue:\n          if (\n            // tslint:disable-next-line no-unused\n            resultsIssue.some(([assetHex, __]) => common.uInt256Equal(common.hexToUInt256(assetHex), utilityToken.hash))\n          ) {\n            throw new VerifyError('Invalid issue result');\n          }\n          break;\n        default:\n          if (resultsIssue.length > 0) {\n            throw new VerifyError('Invalid results.');\n          }\n      }\n    }\n\n    private async verifyScripts({\n      getAsset,\n      getOutput,\n      verifyScript,\n    }: TransactionVerifyOptions): Promise<readonly VerifyScriptResult[]> {\n      const hashesArr = await this.getSortedScriptHashesForVerifying({\n        getAsset,\n        getOutput,\n      });\n\n      if (hashesArr.length !== this.scripts.length) {\n        throw new VerifyError(\n          `Invalid witnesses. Found ${hashesArr.length} hashes and ${this.scripts.length} scripts.`,\n        );\n      }\n\n      const hashes = hashesArr.map((value) => common.hexToUInt160(value));\n\n      return Promise.all(\n        _.zip(hashes, this.scripts).map(async ([hash, witness]) =>\n          verifyScript({\n            scriptContainer: {\n              type: ScriptContainerType.Transaction,\n              // tslint:disable-next-line no-any\n              value: this as any,\n            },\n            hash: hash as UInt160,\n            witness: witness as Witness,\n          }),\n        ),\n      );\n    }\n  }\n\n  return TransactionBaseClass;\n}\n"]}
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