84 lines
2.0 KiB
JavaScript
84 lines
2.0 KiB
JavaScript
const assert = require('assert-plus')
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const util = require('util')
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const asn1 = require('asn1')
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const Control = require('./control')
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/// --- Globals
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const BerReader = asn1.BerReader
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const BerWriter = asn1.BerWriter
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/// --- API
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function EntryChangeNotificationControl (options) {
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assert.optionalObject(options)
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options = options || {}
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options.type = EntryChangeNotificationControl.OID
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if (options.value) {
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if (Buffer.isBuffer(options.value)) {
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this.parse(options.value)
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} else if (typeof (options.value) === 'object') {
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this._value = options.value
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} else {
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throw new TypeError('options.value must be a Buffer or Object')
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}
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options.value = null
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}
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Control.call(this, options)
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}
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util.inherits(EntryChangeNotificationControl, Control)
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Object.defineProperties(EntryChangeNotificationControl.prototype, {
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value: {
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get: function () { return this._value || {} },
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configurable: false
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}
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})
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EntryChangeNotificationControl.prototype.parse = function parse (buffer) {
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assert.ok(buffer)
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const ber = new BerReader(buffer)
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if (ber.readSequence()) {
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this._value = {
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changeType: ber.readInt()
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}
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// if the operation was moddn, then parse the optional previousDN attr
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if (this._value.changeType === 8) { this._value.previousDN = ber.readString() }
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this._value.changeNumber = ber.readInt()
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return true
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}
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return false
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}
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EntryChangeNotificationControl.prototype._toBer = function (ber) {
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assert.ok(ber)
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if (!this._value) { return }
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const writer = new BerWriter()
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writer.startSequence()
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writer.writeInt(this.value.changeType)
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if (this.value.previousDN) { writer.writeString(this.value.previousDN) }
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writer.writeInt(parseInt(this.value.changeNumber, 10))
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writer.endSequence()
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ber.writeBuffer(writer.buffer, 0x04)
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}
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EntryChangeNotificationControl.prototype._json = function (obj) {
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obj.controlValue = this.value
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return obj
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}
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EntryChangeNotificationControl.OID = '2.16.840.1.113730.3.4.7'
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/// --- Exports
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module.exports = EntryChangeNotificationControl
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