153 lines
4.0 KiB
JavaScript
153 lines
4.0 KiB
JavaScript
// Copyright 2011 Mark Cavage, Inc. All rights reserved.
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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 LDAPMessage = require('./message')
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// var LDAPResult = require('./result')
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const dn = require('../dn')
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const filters = require('../filters')
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const Protocol = require('../protocol')
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/// --- Globals
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const Ber = asn1.Ber
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/// --- API
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function SearchRequest (options) {
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options = options || {}
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assert.object(options)
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options.protocolOp = Protocol.LDAP_REQ_SEARCH
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LDAPMessage.call(this, options)
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if (options.baseObject !== undefined) {
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this.baseObject = options.baseObject
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} else {
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this.baseObject = dn.parse('')
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}
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this.scope = options.scope || 'base'
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this.derefAliases = options.derefAliases || Protocol.NEVER_DEREF_ALIASES
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this.sizeLimit = options.sizeLimit || 0
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this.timeLimit = options.timeLimit || 0
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this.typesOnly = options.typesOnly || false
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this.filter = options.filter || null
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this.attributes = options.attributes ? options.attributes.slice(0) : []
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}
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util.inherits(SearchRequest, LDAPMessage)
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Object.defineProperties(SearchRequest.prototype, {
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type: {
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get: function getType () { return 'SearchRequest' },
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configurable: false
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},
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_dn: {
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get: function getDN () { return this.baseObject },
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configurable: false
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},
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scope: {
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get: function getScope () {
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switch (this._scope) {
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case Protocol.SCOPE_BASE_OBJECT: return 'base'
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case Protocol.SCOPE_ONE_LEVEL: return 'one'
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case Protocol.SCOPE_SUBTREE: return 'sub'
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default:
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throw new Error(this._scope + ' is an invalid search scope')
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}
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},
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set: function setScope (val) {
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if (typeof (val) === 'string') {
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switch (val) {
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case 'base':
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this._scope = Protocol.SCOPE_BASE_OBJECT
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break
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case 'one':
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this._scope = Protocol.SCOPE_ONE_LEVEL
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break
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case 'sub':
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this._scope = Protocol.SCOPE_SUBTREE
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break
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default:
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throw new Error(val + ' is an invalid search scope')
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}
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} else {
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this._scope = val
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}
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},
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configurable: false
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}
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})
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SearchRequest.prototype._parse = function (ber) {
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assert.ok(ber)
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this.baseObject = ber.readString()
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this.scope = ber.readEnumeration()
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this.derefAliases = ber.readEnumeration()
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this.sizeLimit = ber.readInt()
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this.timeLimit = ber.readInt()
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this.typesOnly = ber.readBoolean()
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this.filter = filters.parse(ber)
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// look for attributes
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if (ber.peek() === 0x30) {
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ber.readSequence()
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const end = ber.offset + ber.length
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while (ber.offset < end) { this.attributes.push(ber.readString().toLowerCase()) }
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}
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return true
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}
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SearchRequest.prototype._toBer = function (ber) {
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assert.ok(ber)
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// Format only with commas, since that is what RFC 4514 mandates.
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// There's a gotcha here: even though it's called baseObject,
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// it can be a string or a DN object.
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const formattedDN = dn.DN.isDN(this.baseObject)
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? this.baseObject.format({ skipSpace: true })
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: this.baseObject.toString()
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ber.writeString(formattedDN)
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ber.writeEnumeration(this._scope)
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ber.writeEnumeration(this.derefAliases)
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ber.writeInt(this.sizeLimit)
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ber.writeInt(this.timeLimit)
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ber.writeBoolean(this.typesOnly)
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const f = this.filter || new filters.PresenceFilter({ attribute: 'objectclass' })
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ber = f.toBer(ber)
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ber.startSequence(Ber.Sequence | Ber.Constructor)
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if (this.attributes && this.attributes.length) {
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this.attributes.forEach(function (a) {
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ber.writeString(a)
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})
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}
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ber.endSequence()
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return ber
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}
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SearchRequest.prototype._json = function (j) {
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assert.ok(j)
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j.baseObject = this.baseObject
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j.scope = this.scope
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j.derefAliases = this.derefAliases
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j.sizeLimit = this.sizeLimit
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j.timeLimit = this.timeLimit
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j.typesOnly = this.typesOnly
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j.filter = this.filter.toString()
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j.attributes = this.attributes
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return j
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}
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/// --- Exports
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module.exports = SearchRequest
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