71 lines
2.6 KiB
TypeScript
71 lines
2.6 KiB
TypeScript
import { decompile } from './script';
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import * as multisig from './templates/multisig';
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import * as nullData from './templates/nulldata';
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import * as pubKey from './templates/pubkey';
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import * as pubKeyHash from './templates/pubkeyhash';
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import * as scriptHash from './templates/scripthash';
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import * as witnessCommitment from './templates/witnesscommitment';
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import * as witnessPubKeyHash from './templates/witnesspubkeyhash';
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import * as witnessScriptHash from './templates/witnessscripthash';
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const types = {
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P2MS: 'multisig' as string,
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NONSTANDARD: 'nonstandard' as string,
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NULLDATA: 'nulldata' as string,
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P2PK: 'pubkey' as string,
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P2PKH: 'pubkeyhash' as string,
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P2SH: 'scripthash' as string,
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P2WPKH: 'witnesspubkeyhash' as string,
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P2WSH: 'witnessscripthash' as string,
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WITNESS_COMMITMENT: 'witnesscommitment' as string,
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};
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function classifyOutput(script: Buffer): string {
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if (witnessPubKeyHash.output.check(script)) return types.P2WPKH;
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if (witnessScriptHash.output.check(script)) return types.P2WSH;
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if (pubKeyHash.output.check(script)) return types.P2PKH;
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if (scriptHash.output.check(script)) return types.P2SH;
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// XXX: optimization, below functions .decompile before use
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const chunks = decompile(script);
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if (!chunks) throw new TypeError('Invalid script');
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if (multisig.output.check(chunks)) return types.P2MS;
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if (pubKey.output.check(chunks)) return types.P2PK;
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if (witnessCommitment.output.check(chunks)) return types.WITNESS_COMMITMENT;
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if (nullData.output.check(chunks)) return types.NULLDATA;
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return types.NONSTANDARD;
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}
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function classifyInput(script: Buffer, allowIncomplete: boolean): string {
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// XXX: optimization, below functions .decompile before use
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const chunks = decompile(script);
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if (!chunks) throw new TypeError('Invalid script');
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if (pubKeyHash.input.check(chunks)) return types.P2PKH;
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if (scriptHash.input.check(chunks, allowIncomplete)) return types.P2SH;
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if (multisig.input.check(chunks, allowIncomplete)) return types.P2MS;
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if (pubKey.input.check(chunks)) return types.P2PK;
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return types.NONSTANDARD;
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}
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function classifyWitness(script: Buffer[], allowIncomplete: boolean): string {
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// XXX: optimization, below functions .decompile before use
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const chunks = decompile(script);
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if (!chunks) throw new TypeError('Invalid script');
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if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH;
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if (witnessScriptHash.input.check(chunks as Buffer[], allowIncomplete))
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return types.P2WSH;
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return types.NONSTANDARD;
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}
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export {
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classifyInput as input,
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classifyOutput as output,
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classifyWitness as witness,
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types,
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};
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