60 lines
1.9 KiB
TypeScript
60 lines
1.9 KiB
TypeScript
const typeforce = require('typeforce');
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const UINT31_MAX: number = Math.pow(2, 31) - 1;
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export function UInt31(value: number): boolean {
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return typeforce.UInt32(value) && value <= UINT31_MAX;
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}
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export function BIP32Path(value: string): boolean {
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return typeforce.String(value) && !!value.match(/^(m\/)?(\d+'?\/)*\d+'?$/);
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}
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BIP32Path.toJSON = (): string => {
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return 'BIP32 derivation path';
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};
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export function Signer(obj: any): boolean {
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return (
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(typeforce.Buffer(obj.publicKey) ||
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typeof obj.getPublicKey === 'function') &&
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typeof obj.sign === 'function'
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);
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}
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const SATOSHI_MAX: number = 21 * 1e14;
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export function Satoshi(value: number): boolean {
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return typeforce.UInt53(value) && value <= SATOSHI_MAX;
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}
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// external dependent types
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export const ECPoint = typeforce.quacksLike('Point');
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// exposed, external API
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export const Network = typeforce.compile({
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messagePrefix: typeforce.oneOf(typeforce.Buffer, typeforce.String),
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bip32: {
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public: typeforce.UInt32,
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private: typeforce.UInt32,
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},
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pubKeyHash: typeforce.UInt8,
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scriptHash: typeforce.UInt8,
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wif: typeforce.UInt8,
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});
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export const Buffer256bit = typeforce.BufferN(32);
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export const Hash160bit = typeforce.BufferN(20);
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export const Hash256bit = typeforce.BufferN(32);
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export const Number = typeforce.Number; // tslint:disable-line variable-name
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export const Array = typeforce.Array;
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export const Boolean = typeforce.Boolean; // tslint:disable-line variable-name
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export const String = typeforce.String; // tslint:disable-line variable-name
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export const Buffer = typeforce.Buffer;
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export const Hex = typeforce.Hex;
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export const maybe = typeforce.maybe;
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export const tuple = typeforce.tuple;
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export const UInt8 = typeforce.UInt8;
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export const UInt32 = typeforce.UInt32;
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export const Function = typeforce.Function;
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export const BufferN = typeforce.BufferN;
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export const Null = typeforce.Null;
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export const oneOf = typeforce.oneOf;
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