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d-yokoi 2019-03-03 23:07:49 +09:00
parent c74ab67ccf
commit 03632f1507
No known key found for this signature in database
GPG key ID: 49EAF81BC6A0D19A
24 changed files with 2321 additions and 1958 deletions
ts_src/payments
p2pk.ts

114
ts_src/payments/p2pk.ts
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@ -1,78 +1,80 @@
import { Payment, PaymentOpts } from './index' // eslint-disable-line
import * as bscript from '../script'
import * as lazy from './lazy'
import { bitcoin as BITCOIN_NETWORK } from '../networks'
const typef = require('typeforce')
const OPS = bscript.OPS
const ecc = require('tiny-secp256k1')
import { Payment, PaymentOpts } from './index'; // eslint-disable-line
import * as bscript from '../script';
import * as lazy from './lazy';
import { bitcoin as BITCOIN_NETWORK } from '../networks';
const typef = require('typeforce');
const OPS = bscript.OPS;
const ecc = require('tiny-secp256k1');
// input: {signature}
// output: {pubKey} OP_CHECKSIG
export function p2pk (a: Payment, opts?: PaymentOpts): Payment {
if (
!a.input &&
!a.output &&
!a.pubkey &&
!a.input &&
!a.signature
) throw new TypeError('Not enough data')
opts = Object.assign({ validate: true }, opts || {})
export function p2pk(a: Payment, opts?: PaymentOpts): Payment {
if (!a.input && !a.output && !a.pubkey && !a.input && !a.signature)
throw new TypeError('Not enough data');
opts = Object.assign({ validate: true }, opts || {});
typef({
network: typef.maybe(typef.Object),
output: typef.maybe(typef.Buffer),
pubkey: typef.maybe(ecc.isPoint),
typef(
{
network: typef.maybe(typef.Object),
output: typef.maybe(typef.Buffer),
pubkey: typef.maybe(ecc.isPoint),
signature: typef.maybe(bscript.isCanonicalScriptSignature),
input: typef.maybe(typef.Buffer)
}, a)
signature: typef.maybe(bscript.isCanonicalScriptSignature),
input: typef.maybe(typef.Buffer),
},
a,
);
const _chunks = <()=>Array<Buffer | number>>lazy.value(function () { return bscript.decompile(a.input!) })
const _chunks = <() => Array<Buffer | number>>lazy.value(function() {
return bscript.decompile(a.input!);
});
const network = a.network || BITCOIN_NETWORK
const o: Payment = { network }
const network = a.network || BITCOIN_NETWORK;
const o: Payment = { network };
lazy.prop(o, 'output', function () {
if (!a.pubkey) return
return bscript.compile([
a.pubkey,
OPS.OP_CHECKSIG
])
})
lazy.prop(o, 'pubkey', function () {
if (!a.output) return
return a.output.slice(1, -1)
})
lazy.prop(o, 'signature', function () {
if (!a.input) return
return <Buffer>_chunks()[0]
})
lazy.prop(o, 'input', function () {
if (!a.signature) return
return bscript.compile([a.signature])
})
lazy.prop(o, 'witness', function () {
if (!o.input) return
return []
})
lazy.prop(o, 'output', function() {
if (!a.pubkey) return;
return bscript.compile([a.pubkey, OPS.OP_CHECKSIG]);
});
lazy.prop(o, 'pubkey', function() {
if (!a.output) return;
return a.output.slice(1, -1);
});
lazy.prop(o, 'signature', function() {
if (!a.input) return;
return <Buffer>_chunks()[0];
});
lazy.prop(o, 'input', function() {
if (!a.signature) return;
return bscript.compile([a.signature]);
});
lazy.prop(o, 'witness', function() {
if (!o.input) return;
return [];
});
// extended validation
if (opts.validate) {
if (a.output) {
if (a.output[a.output.length - 1] !== OPS.OP_CHECKSIG) throw new TypeError('Output is invalid')
if (!ecc.isPoint(o.pubkey)) throw new TypeError('Output pubkey is invalid')
if (a.pubkey && !a.pubkey.equals(o.pubkey!)) throw new TypeError('Pubkey mismatch')
if (a.output[a.output.length - 1] !== OPS.OP_CHECKSIG)
throw new TypeError('Output is invalid');
if (!ecc.isPoint(o.pubkey))
throw new TypeError('Output pubkey is invalid');
if (a.pubkey && !a.pubkey.equals(o.pubkey!))
throw new TypeError('Pubkey mismatch');
}
if (a.signature) {
if (a.input && !a.input.equals(o.input!)) throw new TypeError('Signature mismatch')
if (a.input && !a.input.equals(o.input!))
throw new TypeError('Signature mismatch');
}
if (a.input) {
if (_chunks().length !== 1) throw new TypeError('Input is invalid')
if (!bscript.isCanonicalScriptSignature(o.signature!)) throw new TypeError('Input has invalid signature')
if (_chunks().length !== 1) throw new TypeError('Input is invalid');
if (!bscript.isCanonicalScriptSignature(o.signature!))
throw new TypeError('Input has invalid signature');
}
}
return Object.assign(o, a)
return Object.assign(o, a);
}