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…ptor feat: add updateOutputWithDescriptor for WrapPsbt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| import * as assert from "node:assert"; | ||
| import * as utxolib from "@bitgo/utxo-lib"; | ||
| import { Descriptor, Psbt } from "../js"; | ||
|
|
||
| function toAddress(descriptor: Descriptor, network: utxolib.Network) { | ||
| utxolib.address.fromOutputScript(Buffer.from(descriptor.scriptPubkey()), network); | ||
| } | ||
|
|
||
| export function toWrappedPsbt(psbt: utxolib.bitgo.UtxoPsbt | utxolib.Psbt | Buffer | Uint8Array) { | ||
| if (psbt instanceof utxolib.bitgo.UtxoPsbt || psbt instanceof utxolib.Psbt) { | ||
| psbt = psbt.toBuffer(); | ||
| } | ||
| if (psbt instanceof Buffer || psbt instanceof Uint8Array) { | ||
| return Psbt.deserialize(psbt); | ||
| } | ||
| throw new Error("Invalid input"); | ||
| } | ||
|
|
||
| export function toUtxoPsbt(psbt: Psbt | Buffer | Uint8Array) { | ||
| if (psbt instanceof Psbt) { | ||
| psbt = psbt.serialize(); | ||
| } | ||
| if (psbt instanceof Buffer || psbt instanceof Uint8Array) { | ||
| return utxolib.bitgo.UtxoPsbt.fromBuffer(Buffer.from(psbt), { | ||
| network: utxolib.networks.bitcoin, | ||
| }); | ||
| } | ||
| throw new Error("Invalid input"); | ||
| } | ||
|
|
||
| export function updateInputWithDescriptor( | ||
| psbt: utxolib.Psbt, | ||
| inputIndex: number, | ||
| descriptor: Descriptor, | ||
| ) { | ||
| const wrappedPsbt = toWrappedPsbt(psbt); | ||
| wrappedPsbt.updateInputWithDescriptor(inputIndex, descriptor); | ||
| psbt.data.inputs[inputIndex] = toUtxoPsbt(wrappedPsbt).data.inputs[inputIndex]; | ||
| } | ||
|
|
||
| export function updateOutputWithDescriptor( | ||
| psbt: utxolib.Psbt, | ||
| outputIndex: number, | ||
| descriptor: Descriptor, | ||
| ) { | ||
| const wrappedPsbt = toWrappedPsbt(psbt); | ||
| wrappedPsbt.updateOutputWithDescriptor(outputIndex, descriptor); | ||
| psbt.data.outputs[outputIndex] = toUtxoPsbt(wrappedPsbt).data.outputs[outputIndex]; | ||
| } | ||
|
|
||
| export function finalizePsbt(psbt: utxolib.Psbt) { | ||
| const wrappedPsbt = toWrappedPsbt(psbt); | ||
| wrappedPsbt.finalize(); | ||
| const unwrappedPsbt = toUtxoPsbt(wrappedPsbt); | ||
| for (let i = 0; i < psbt.data.inputs.length; i++) { | ||
| psbt.data.inputs[i] = unwrappedPsbt.data.inputs[i]; | ||
| } | ||
| } | ||
|
|
||
| function toEntries(k: string, v: unknown, path: (string | number)[]): [] | [[string, unknown]] { | ||
| if (matchPath(path, ["data", "inputs", any, "sighashType"])) { | ||
| return []; | ||
| } | ||
| if (matchPath(path.slice(-1), ["unknownKeyVals"])) { | ||
| if (Array.isArray(v) && v.length === 0) { | ||
| return []; | ||
| } | ||
| } | ||
| return [[k, toPlainObject(v, path)]]; | ||
| } | ||
|
|
||
| const any = Symbol("any"); | ||
|
|
||
| function matchPath(path: (string | number)[], pattern: (string | number | symbol)[]) { | ||
| if (path.length !== pattern.length) { | ||
| return false; | ||
| } | ||
| for (let i = 0; i < path.length; i++) { | ||
| if (pattern[i] !== any && path[i] !== pattern[i]) { | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| function normalizeBip32Derivation(v: unknown) { | ||
| if (!Array.isArray(v)) { | ||
| throw new Error("Expected bip32Derivation to be an array"); | ||
| } | ||
| return ( | ||
| [...v] as { | ||
| masterFingerprint: Buffer; | ||
| path: string; | ||
| }[] | ||
| ) | ||
| .map((e) => { | ||
| let { path } = e; | ||
| if (path.startsWith("m/")) { | ||
| path = path.slice(2); | ||
| } | ||
| return { | ||
| ...e, | ||
| path, | ||
| }; | ||
| }) | ||
| .sort((a, b) => a.masterFingerprint.toString().localeCompare(b.masterFingerprint.toString())); | ||
| } | ||
|
|
||
| function toPlainObject(v: unknown, path: (string | number)[]) { | ||
| // psbts have fun getters and other types of irregular properties that we mash into shape here | ||
| if (v === null || v === undefined) { | ||
| return v; | ||
| } | ||
| if ( | ||
| matchPath(path, ["data", "inputs", any, "bip32Derivation"]) || | ||
| matchPath(path, ["data", "outputs", any, "bip32Derivation"]) | ||
| ) { | ||
| v = normalizeBip32Derivation(v); | ||
| } | ||
| switch (typeof v) { | ||
| case "number": | ||
| case "bigint": | ||
| case "string": | ||
| case "boolean": | ||
| return v; | ||
| case "object": | ||
| if (v instanceof Buffer || v instanceof Uint8Array) { | ||
| return v.toString("hex"); | ||
| } | ||
| if (Array.isArray(v)) { | ||
| return v.map((v, i) => toPlainObject(v, [...path, i])); | ||
| } | ||
| return Object.fromEntries( | ||
| Object.entries(v) | ||
| .flatMap(([k, v]) => toEntries(k, v, [...path, k])) | ||
| .sort(([a], [b]) => a.localeCompare(b)), | ||
| ); | ||
| default: | ||
| throw new Error(`Unsupported type: ${typeof v}`); | ||
| } | ||
| } | ||
|
|
||
| export function assertEqualPsbt(a: utxolib.Psbt, b: utxolib.Psbt) { | ||
| assert.deepStrictEqual(toPlainObject(a, []), toPlainObject(b, [])); | ||
| } |
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