110 lines
3.0 KiB
JavaScript
110 lines
3.0 KiB
JavaScript
/// --- Globals
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// var parseDN = require('./dn').parse
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var EntryChangeNotificationControl =
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require('./controls').EntryChangeNotificationControl
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/// --- API
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// Cache used to store connected persistent search clients
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function PersistentSearch () {
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this.clientList = []
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}
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PersistentSearch.prototype.addClient = function (req, res, callback) {
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if (typeof (req) !== 'object') { throw new TypeError('req must be an object') }
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if (typeof (res) !== 'object') { throw new TypeError('res must be an object') }
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if (callback && typeof (callback) !== 'function') { throw new TypeError('callback must be a function') }
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var log = req.log
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var client = {}
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client.req = req
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client.res = res
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log.debug('%s storing client', req.logId)
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this.clientList.push(client)
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log.debug('%s stored client', req.logId)
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log.debug('%s total number of clients %s',
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req.logId, this.clientList.length)
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if (callback) { callback(client) }
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}
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PersistentSearch.prototype.removeClient = function (req, res, callback) {
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if (typeof (req) !== 'object') { throw new TypeError('req must be an object') }
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if (typeof (res) !== 'object') { throw new TypeError('res must be an object') }
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if (callback && typeof (callback) !== 'function') { throw new TypeError('callback must be a function') }
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var log = req.log
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log.debug('%s removing client', req.logId)
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var client = {}
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client.req = req
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client.res = res
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// remove the client if it exists
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this.clientList.forEach(function (element, index, array) {
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if (element.req === client.req) {
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log.debug('%s removing client from list', req.logId)
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array.splice(index, 1)
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}
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})
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log.debug('%s number of persistent search clients %s',
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req.logId, this.clientList.length)
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if (callback) { callback(client) }
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}
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function getOperationType (requestType) {
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switch (requestType) {
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case 'AddRequest':
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case 'add':
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return 1
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case 'DeleteRequest':
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case 'delete':
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return 2
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case 'ModifyRequest':
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case 'modify':
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return 4
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case 'ModifyDNRequest':
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case 'modrdn':
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return 8
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default:
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throw new TypeError('requestType %s, is an invalid request type',
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requestType)
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}
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}
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function getEntryChangeNotificationControl (req, obj, callback) {
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// if we want to return a ECNC
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if (req.persistentSearch.value.returnECs) {
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var attrs = obj.attributes
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var value = {}
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value.changeType = getOperationType(attrs.changetype)
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// if it's a modDN request, fill in the previous DN
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if (value.changeType === 8 && attrs.previousDN) {
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value.previousDN = attrs.previousDN
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}
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value.changeNumber = attrs.changenumber
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return new EntryChangeNotificationControl({ value: value })
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} else {
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return false
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}
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}
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function checkChangeType (req, requestType) {
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return (req.persistentSearch.value.changeTypes &
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getOperationType(requestType))
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}
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/// --- Exports
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module.exports = {
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PersistentSearchCache: PersistentSearch,
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checkChangeType: checkChangeType,
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getEntryChangeNotificationControl: getEntryChangeNotificationControl
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}
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