107 lines
2.5 KiB
JavaScript
107 lines
2.5 KiB
JavaScript
// Copyright 2011 Mark Cavage, Inc. All rights reserved.
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var assert = require('assert');
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var util = require('util');
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var asn1 = require('asn1');
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var Control = require('../control');
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var Protocol = require('../protocol');
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var logStub = require('../log_stub');
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///--- Globals
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var Ber = asn1.Ber;
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var BerReader = asn1.BerReader;
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var BerWriter = asn1.BerWriter;
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///--- API
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/**
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* LDAPMessage structure.
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*
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* @param {Object} options stuff.
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*/
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function LDAPMessage(options) {
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if (!options || typeof(options) !== 'object')
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throw new TypeError('options (object) required');
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this.messageID = options.messageID || 0;
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this.protocolOp = options.protocolOp || undefined;
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this.controls = options.controls ? options.controls.slice(0) : [];
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this.log4js = options.log4js || logStub;
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var self = this;
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this.__defineGetter__('id', function() { return self.messageID; });
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this.__defineGetter__('dn', function() { return self._dn || ''; });
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this.__defineGetter__('type', function() { return 'LDAPMessage'; });
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this.__defineGetter__('json', function() {
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var j = {
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messageID: self.messageID,
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protocolOp: self.type
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};
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j = self._json(j);
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j.controls = self.controls;
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return j;
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});
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this.__defineGetter__('log', function() {
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if (!self._log)
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self._log = self.log4js.getLogger(self.type);
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return self._log;
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});
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}
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module.exports = LDAPMessage;
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LDAPMessage.prototype.toString = function() {
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return JSON.stringify(this.json);
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};
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LDAPMessage.prototype.parse = function(data, length) {
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if (!data || !Buffer.isBuffer(data))
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throw new TypeError('data (buffer) required');
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if (this.log.isTraceEnabled())
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this.log.trace('parse: data=%s, len=%d', util.inspect(data), length);
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var ber = new BerReader(data);
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// Delegate off to the specific type to parse
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this._parse(ber, length);
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// Look for controls
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if (ber.peek() === 0xa0) {
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ber.readSequence();
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var end = ber.offset + ber.length;
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while (ber.offset < end) {
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var c = new Control();
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if (c.parse(ber))
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this.controls.push(c);
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}
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}
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if (this.log.isTraceEnabled())
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this.log.trace('Parsing done: %j', this.json);
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return true;
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};
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LDAPMessage.prototype.toBer = function() {
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var writer = new BerWriter();
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writer.startSequence();
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writer.writeInt(this.messageID);
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writer.startSequence(this.protocolOp);
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if (this._toBer)
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writer = this._toBer(writer);
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writer.endSequence();
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writer.endSequence();
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return writer.buffer;
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};
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