| 1 | import { Enum, Struct } from '@polkadot/types-codec';
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| 2 | import { objectSpread } from '@polkadot/util';
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| 3 | import { sign } from '../util.js';
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| 4 | /**
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| 5 | * @name GenericExtrinsicPayloadV4
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| 6 | * @description
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| 7 | * A signing payload for an [[Extrinsic]]. For the final encoding, it is
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| 8 | * variable length based on the contents included
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| 9 | */
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| 10 | export class GenericExtrinsicPayloadV4 extends Struct {
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| 11 | constructor(registry, value) {
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| 12 | super(registry, objectSpread({ method: 'Bytes' }, registry.getSignedExtensionTypes(), registry.getSignedExtensionExtra()), value);
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| 13 | // Do detection for the type of extrinsic, in the case of MultiSignature
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| 14 | // this is an enum, in the case of AnySignature, this is a Hash only
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| 15 | // (which may be 64 or 65 bytes)
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| 16 | this.__internal__signOptions = {
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| 17 | withType: registry.createTypeUnsafe('ExtrinsicSignature', []) instanceof Enum
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| 18 | };
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| 19 | }
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| 20 | /**
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| 21 | * @description Returns a breakdown of the hex encoding for this Codec
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| 22 | */
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| 23 | inspect() {
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| 24 | return super.inspect({ method: true });
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| 25 | }
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| 26 | /**
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| 27 | * @description The block [[BlockHash]] the signature applies to (mortal/immortal)
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| 28 | */
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| 29 | get blockHash() {
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| 30 | return this.getT('blockHash');
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| 31 | }
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| 32 | /**
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| 33 | * @description The [[ExtrinsicEra]]
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| 34 | */
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| 35 | get era() {
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| 36 | return this.getT('era');
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| 37 | }
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| 38 | /**
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| 39 | * @description The genesis [[BlockHash]] the signature applies to (mortal/immortal)
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| 40 | */
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| 41 | get genesisHash() {
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| 42 | return this.getT('genesisHash');
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| 43 | }
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| 44 | /**
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| 45 | * @description The [[Bytes]] contained in the payload
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| 46 | */
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| 47 | get method() {
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| 48 | return this.getT('method');
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| 49 | }
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| 50 | /**
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| 51 | * @description The [[Index]]
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| 52 | */
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| 53 | get nonce() {
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| 54 | return this.getT('nonce');
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| 55 | }
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| 56 | /**
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| 57 | * @description The specVersion for this signature
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| 58 | */
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| 59 | get specVersion() {
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| 60 | return this.getT('specVersion');
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| 61 | }
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| 62 | /**
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| 63 | * @description The tip [[Balance]]
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| 64 | */
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| 65 | get tip() {
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| 66 | return this.getT('tip');
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| 67 | }
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| 68 | /**
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| 69 | * @description The transactionVersion for this signature
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| 70 | */
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| 71 | get transactionVersion() {
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| 72 | return this.getT('transactionVersion');
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| 73 | }
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| 74 | /**
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| 75 | * @description The (optional) asset id for this signature for chains that support transaction fees in assets
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| 76 | */
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| 77 | get assetId() {
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| 78 | return this.getT('assetId');
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| 79 | }
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| 80 | /**
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| 81 | * @description Sign the payload with the keypair
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| 82 | */
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| 83 | sign(signerPair) {
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| 84 | // NOTE The `toU8a({ method: true })` argument is absolutely critical, we
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| 85 | // don't want the method (Bytes) to have the length prefix included. This
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| 86 | // means that the data-as-signed is un-decodable, but is also doesn't need
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| 87 | // the extra information, only the pure data (and is not decoded) ...
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| 88 | // The same applies to V1..V3, if we have a V5, carry this comment
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| 89 | return sign(this.registry, signerPair, this.toU8a({ method: true }), this.__internal__signOptions);
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| 90 | }
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| 91 | }
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