node-ldapjs/lib/messages/abandon_request.js

102 lines
2.0 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 Attribute = require('../attribute');
var Protocol = require('../protocol');
///--- Globals
var Ber = asn1.Ber;
///--- API
function AbandonRequest(options) {
if (options) {
if (typeof (options) !== 'object')
throw new TypeError('options must be an object');
if (options.abandonID && typeof (options.abandonID) !== 'number')
throw new TypeError('abandonID must be a number');
} else {
options = {};
}
options.protocolOp = Protocol.LDAP_REQ_ABANDON;
LDAPMessage.call(this, options);
this.abandonID = options.abandonID || 0;
this.__defineGetter__('type', function () { return 'AbandonRequest'; });
}
util.inherits(AbandonRequest, LDAPMessage);
module.exports = AbandonRequest;
AbandonRequest.prototype._parse = function (ber, length) {
assert.ok(ber);
assert.ok(length);
// What a PITA - have to replicate ASN.1 integer logic to work around the
// way abandon is encoded and the way ldapjs framework handles "normal"
// messages
var buf = ber.buffer;
var offset = 0;
var value = 0;
var fb = buf[offset++];
value = fb & 0x7F;
for (var i = 1; i < length; i++) {
value <<= 8;
value |= (buf[offset++] & 0xff);
}
if ((fb & 0x80) == 0x80)
value = -value;
ber._offset += length;
this.abandonID = value;
return true;
};
AbandonRequest.prototype._toBer = function (ber) {
assert.ok(ber);
var i = this.abandonID;
var sz = 4;
while ((((i & 0xff800000) === 0) || ((i & 0xff800000) === 0xff800000)) &&
(sz > 1)) {
sz--;
i <<= 8;
}
assert.ok(sz <= 4);
while (sz-- > 0) {
ber.writeByte((i & 0xff000000) >> 24);
i <<= 8;
}
return ber;
};
AbandonRequest.prototype._json = function (j) {
assert.ok(j);
j.abandonID = this.abandonID;
return j;
};