node-ldapjs/lib/messages/search_request.js

153 lines
3.7 KiB
JavaScript

// Copyright 2011 Mark Cavage, Inc. All rights reserved.
var assert = require('assert');
var util = require('util');
var asn1 = require('asn1');
var LDAPMessage = require('./message');
var LDAPResult = require('./result');
var dn = require('../dn');
var filters = require('../filters');
var Protocol = require('../protocol');
///--- Globals
var DN = dn.DN;
var Ber = asn1.Ber;
///--- API
function SearchRequest(options) {
if (options) {
if (typeof (options) !== 'object')
throw new TypeError('options must be an object');
} else {
options = {};
}
options.protocolOp = Protocol.LDAP_REQ_SEARCH;
LDAPMessage.call(this, options);
var self = this;
this.__defineGetter__('type', function () { return 'SearchRequest'; });
this.__defineGetter__('_dn', function () { return self.baseObject; });
this.__defineGetter__('scope', function () {
switch (self._scope) {
case Protocol.SCOPE_BASE_OBJECT: return 'base';
case Protocol.SCOPE_ONE_LEVEL: return 'one';
case Protocol.SCOPE_SUBTREE: return 'sub';
default:
throw new Error(self._scope + ' is an invalid search scope');
}
});
this.__defineSetter__('scope', function (s) {
if (typeof (s) === 'string') {
switch (s) {
case 'base':
self._scope = Protocol.SCOPE_BASE_OBJECT;
break;
case 'one':
self._scope = Protocol.SCOPE_ONE_LEVEL;
break;
case 'sub':
self._scope = Protocol.SCOPE_SUBTREE;
break;
default:
throw new Error(s + ' is an invalid search scope');
}
} else {
self._scope = s;
}
});
this.baseObject = options.baseObject || new DN([ {} ]);
this.scope = options.scope || 'base';
this.derefAliases = options.derefAliases || Protocol.NEVER_DEREF_ALIASES;
this.sizeLimit = options.sizeLimit || 0;
this.timeLimit = options.timeLimit || 0;
this.typesOnly = options.typesOnly || false;
this.filter = options.filter || null;
this.attributes = options.attributes ? options.attributes.slice(0) : [];
}
util.inherits(SearchRequest, LDAPMessage);
module.exports = SearchRequest;
SearchRequest.prototype.newResult = function () {
var self = this;
return new LDAPResult({
messageID: self.messageID,
protocolOp: Protocol.LDAP_REP_SEARCH
});
};
SearchRequest.prototype._parse = function (ber) {
assert.ok(ber);
this.baseObject = ber.readString();
this.scope = ber.readEnumeration();
this.derefAliases = ber.readEnumeration();
this.sizeLimit = ber.readInt();
this.timeLimit = ber.readInt();
this.typesOnly = ber.readBoolean();
this.filter = filters.parse(ber);
// look for attributes
if (ber.peek() === 0x30) {
ber.readSequence();
var end = ber.offset + ber.length;
while (ber.offset < end)
this.attributes.push(ber.readString().toLowerCase());
}
return true;
};
SearchRequest.prototype._toBer = function (ber) {
assert.ok(ber);
ber.writeString(this.baseObject.toString());
ber.writeEnumeration(this._scope);
ber.writeEnumeration(this.derefAliases);
ber.writeInt(this.sizeLimit);
ber.writeInt(this.timeLimit);
ber.writeBoolean(this.typesOnly);
var f = this.filter || new filters.PresenceFilter({attribute: 'objectclass'});
ber = f.toBer(ber);
ber.startSequence(Ber.Sequence | Ber.Constructor);
if (this.attributes && this.attributes.length) {
this.attributes.forEach(function (a) {
ber.writeString(a);
});
}
ber.endSequence();
return ber;
};
SearchRequest.prototype._json = function (j) {
assert.ok(j);
j.baseObject = this.baseObject;
j.scope = this.scope;
j.derefAliases = this.derefAliases;
j.sizeLimit = this.sizeLimit;
j.timeLimit = this.timeLimit;
j.typesOnly = this.typesOnly;
j.filter = this.filter.toString();
j.attributes = this.attributes;
return j;
};