1 | 'use strict';
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2 |
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3 | var _ = require('lodash');
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4 | var $ = require('../util/preconditions');
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5 | var inherits = require('inherits');
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6 | var BufferUtil = require('../util/buffer');
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7 | var JSUtil = require('../util/js');
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8 |
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9 | var PublicKey = require('../publickey');
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10 | var errors = require('../errors');
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11 | var Signature = require('../crypto/signature');
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12 |
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13 |
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14 |
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15 |
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16 |
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17 |
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18 |
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19 |
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20 | function TransactionSignature(arg) {
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21 | if (!(this instanceof TransactionSignature)) {
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22 | return new TransactionSignature(arg);
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23 | }
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24 | if (arg instanceof TransactionSignature) {
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25 | return arg;
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26 | }
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27 | if (_.isObject(arg)) {
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28 | return this._fromObject(arg);
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29 | }
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30 | throw new errors.InvalidArgument('TransactionSignatures must be instantiated from an object');
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31 | }
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32 | inherits(TransactionSignature, Signature);
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33 |
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34 | TransactionSignature.prototype._fromObject = function(arg) {
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35 | this._checkObjectArgs(arg);
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36 | this.publicKey = new PublicKey(arg.publicKey);
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37 | this.prevTxId = BufferUtil.isBuffer(arg.prevTxId) ? arg.prevTxId : Buffer.from(arg.prevTxId, 'hex');
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38 | this.outputIndex = arg.outputIndex;
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39 | this.inputIndex = arg.inputIndex;
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40 | this.signature = (arg.signature instanceof Signature) ? arg.signature :
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41 | BufferUtil.isBuffer(arg.signature) ? Signature.fromBuffer(arg.signature) :
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42 | Signature.fromString(arg.signature);
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43 | this.sigtype = arg.sigtype;
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44 | return this;
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45 | };
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46 |
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47 | TransactionSignature.prototype._checkObjectArgs = function(arg) {
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48 | $.checkArgument(PublicKey(arg.publicKey), 'publicKey');
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49 | $.checkArgument(!_.isUndefined(arg.inputIndex), 'inputIndex');
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50 | $.checkArgument(!_.isUndefined(arg.outputIndex), 'outputIndex');
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51 | $.checkState(_.isNumber(arg.inputIndex), 'inputIndex must be a number');
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52 | $.checkState(_.isNumber(arg.outputIndex), 'outputIndex must be a number');
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53 | $.checkArgument(arg.signature, 'signature');
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54 | $.checkArgument(arg.prevTxId, 'prevTxId');
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55 | $.checkState(arg.signature instanceof Signature ||
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56 | BufferUtil.isBuffer(arg.signature) ||
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57 | JSUtil.isHexa(arg.signature), 'signature must be a buffer or hexa value');
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58 | $.checkState(BufferUtil.isBuffer(arg.prevTxId) ||
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59 | JSUtil.isHexa(arg.prevTxId), 'prevTxId must be a buffer or hexa value');
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60 | $.checkArgument(arg.sigtype, 'sigtype');
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61 | $.checkState(_.isNumber(arg.sigtype), 'sigtype must be a number');
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62 | };
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63 |
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64 |
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65 |
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66 |
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67 |
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68 | TransactionSignature.prototype.toObject = TransactionSignature.prototype.toJSON = function toObject() {
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69 | return {
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70 | publicKey: this.publicKey.toString(),
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71 | prevTxId: this.prevTxId.toString('hex'),
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72 | outputIndex: this.outputIndex,
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73 | inputIndex: this.inputIndex,
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74 | signature: this.signature.toString(),
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75 | sigtype: this.sigtype
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76 | };
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77 | };
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78 |
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79 |
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80 |
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81 |
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82 |
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83 |
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84 | TransactionSignature.fromObject = function(object) {
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85 | $.checkArgument(object);
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86 | return new TransactionSignature(object);
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87 | };
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88 |
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89 | module.exports = TransactionSignature;
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