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d-yokoi 2019-03-03 23:07:49 +09:00
parent c74ab67ccf
commit 03632f1507
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24 changed files with 2321 additions and 1958 deletions
ts_src/payments
embed.ts

79
ts_src/payments/embed.ts
View file

@ -1,54 +1,59 @@
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
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;
function stacksEqual (a: Array<Buffer>, b: Array<Buffer>): boolean {
if (a.length !== b.length) return false
function stacksEqual(a: Array<Buffer>, b: Array<Buffer>): boolean {
if (a.length !== b.length) return false;
return a.every(function (x, i) {
return x.equals(b[i])
})
return a.every(function(x, i) {
return x.equals(b[i]);
});
}
// output: OP_RETURN ...
export function p2data (a: Payment, opts?: PaymentOpts): Payment {
if (
!a.data &&
!a.output
) throw new TypeError('Not enough data')
opts = Object.assign({ validate: true }, opts || {})
export function p2data(a: Payment, opts?: PaymentOpts): Payment {
if (!a.data && !a.output) throw new TypeError('Not enough data');
opts = Object.assign({ validate: true }, opts || {});
typef({
network: typef.maybe(typef.Object),
output: typef.maybe(typef.Buffer),
data: typef.maybe(typef.arrayOf(typef.Buffer))
}, a)
typef(
{
network: typef.maybe(typef.Object),
output: typef.maybe(typef.Buffer),
data: typef.maybe(typef.arrayOf(typef.Buffer)),
},
a,
);
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.data) return
return bscript.compile((<Array<Buffer | number>>[OPS.OP_RETURN]).concat(a.data))
})
lazy.prop(o, 'data', function () {
if (!a.output) return
return bscript.decompile(a.output)!.slice(1)
})
lazy.prop(o, 'output', function() {
if (!a.data) return;
return bscript.compile(
(<Array<Buffer | number>>[OPS.OP_RETURN]).concat(a.data),
);
});
lazy.prop(o, 'data', function() {
if (!a.output) return;
return bscript.decompile(a.output)!.slice(1);
});
// extended validation
if (opts.validate) {
if (a.output) {
const chunks = bscript.decompile(a.output)
if (chunks![0] !== OPS.OP_RETURN) throw new TypeError('Output is invalid')
if (!chunks!.slice(1).every(typef.Buffer)) throw new TypeError('Output is invalid')
const chunks = bscript.decompile(a.output);
if (chunks![0] !== OPS.OP_RETURN)
throw new TypeError('Output is invalid');
if (!chunks!.slice(1).every(typef.Buffer))
throw new TypeError('Output is invalid');
if (a.data && !stacksEqual(a.data, <Array<Buffer>>o.data)) throw new TypeError('Data mismatch')
if (a.data && !stacksEqual(a.data, <Array<Buffer>>o.data))
throw new TypeError('Data mismatch');
}
}
return Object.assign(o, a)
return Object.assign(o, a);
}