62 lines
1.5 KiB
JavaScript
62 lines
1.5 KiB
JavaScript
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var asn1 = require('../asn1');
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var inherits = require('inherits');
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var api = exports;
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api.define = function define(name, body) {
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return new Entity(name, body);
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};
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function Entity(name, body) {
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this.name = name;
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this.body = body;
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this.decoders = {};
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this.encoders = {};
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};
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Entity.prototype._createNamed = function createNamed(base) {
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var named;
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try {
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named = require('vm').runInThisContext(
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'(function ' + this.name + '(entity) {\n' +
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' this._initNamed(entity);\n' +
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'})'
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);
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} catch (e) {
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named = function (entity) {
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this._initNamed(entity);
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};
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}
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inherits(named, base);
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named.prototype._initNamed = function initnamed(entity) {
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base.call(this, entity);
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};
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return new named(this);
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};
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Entity.prototype._getDecoder = function _getDecoder(enc) {
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enc = enc || 'der';
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// Lazily create decoder
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if (!this.decoders.hasOwnProperty(enc))
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this.decoders[enc] = this._createNamed(asn1.decoders[enc]);
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return this.decoders[enc];
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};
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Entity.prototype.decode = function decode(data, enc, options) {
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return this._getDecoder(enc).decode(data, options);
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};
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Entity.prototype._getEncoder = function _getEncoder(enc) {
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enc = enc || 'der';
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// Lazily create encoder
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if (!this.encoders.hasOwnProperty(enc))
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this.encoders[enc] = this._createNamed(asn1.encoders[enc]);
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return this.encoders[enc];
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};
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Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) {
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return this._getEncoder(enc).encode(data, reporter);
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};
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