87 lines
2.0 KiB
JavaScript
87 lines
2.0 KiB
JavaScript
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// Copyright 2011 Mark Cavage, Inc. All rights reserved.
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var assert = require('assert');
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var Attribute = require('./attribute');
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var Protocol = require('./protocol');
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///--- API
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function Change(options) {
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if (options) {
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if (typeof(options) !== 'object')
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throw new TypeError('options must be an object');
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if (options.operation && typeof(options.operation) !== 'string')
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throw new TypeError('options.operation must be a string');
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if (options.modification && !(options.modification instanceof Attribute))
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throw new TypeErrr('options.modification must be an Attribute');
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} else {
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options = {};
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}
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var self = this;
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this.__defineGetter__('operation', function() {
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switch (self._operation) {
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case 0x00: return 'Add';
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case 0x01: return 'Delete';
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case 0x02: return 'Replace';
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default: return 'Invalid';
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}
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});
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this.__defineSetter__('operation', function(val) {
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if (typeof(val) !== 'string')
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throw new TypeError('operation must be a string');
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switch (val.toLowerCase()) {
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case 'add':
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self._operation = 0x00;
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break;
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case 'delete':
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self._operation = 0x01;
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break;
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case 'replace':
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self._operation = 0x02;
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break;
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default:
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throw new Error('Invalid operation type: 0x' + val.toString(16));
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}
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});
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this.__defineGetter__('json', function() {
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return {
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operation: self.operation,
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modification: self.modification ? self.modification.json : {}
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};
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});
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this.operation = options.operation || 'add';
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this.modification = options.modification || null;
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}
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module.exports = Change;
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Change.prototype.parse = function(ber) {
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assert.ok(ber);
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ber.readSequence();
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this._operation = ber.readEnumeration();
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this.modification = new Attribute();
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this.modification.parse(ber);
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return true;
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};
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Change.prototype.toBer = function(ber) {
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assert.ok(ber);
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ber.startSequence();
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ber.writeEnumeration(this._operation);
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ber = this.modification.toBer(ber);
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ber.endSequence();
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return ber;
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};
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