79 lines
2.8 KiB
JavaScript
79 lines
2.8 KiB
JavaScript
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// Copyright (c) 2023, 2024, Oracle and/or its affiliates.
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//-----------------------------------------------------------------------------
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//
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// This software is dual-licensed to you under the Universal Permissive License
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// (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
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// 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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// either license.
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//
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// If you elect to accept the software under the Apache License, Version 2.0,
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// the following applies:
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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//-----------------------------------------------------------------------------
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'use strict';
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const constants = require("../constants.js");
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const Message = require("./base.js");
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/**
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* Executes a Fast Negotiation RPC function.
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* It sends Protocol Negotiation, Datatype Negotiation
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* and OSESS Key RPC in single round trip.
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*
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* @class FastAuthMessage
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* @extends {Message}
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*/
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class FastAuthMessage extends Message {
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/**
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* Serializes the FastAuthMessage function arguments
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*
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* @param {object} buf input arguments
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*/
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encode(buf) {
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buf.writeUInt8(constants.TNS_MSG_TYPE_FAST_AUTH);
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buf.writeUInt8(1); // Fast Auth version
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buf.writeUInt8(constants.TNS_SERVER_CONVERTS_CHARS); // flag 1
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buf.writeUInt8(0); // flag 2
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this.protocolMessage.encode(buf);
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buf.writeUInt16BE(0); // server charset (unused)
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buf.writeUInt8(0); // server charset flag (unused)
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buf.writeUInt16BE(0); // server ncharset (unused)
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buf.caps.ttcFieldVersion = constants.TNS_CCAP_FIELD_VERSION_19_1_EXT_1;
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buf.writeUInt8(buf.caps.ttcFieldVersion);
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this.dataTypeMessage.encode(buf);
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this.authMessage.encode(buf);
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buf.caps.ttcFieldVersion = constants.TNS_CCAP_FIELD_VERSION_MAX;
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}
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processMessage(buf, messageType) {
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if (messageType === constants.TNS_MSG_TYPE_RENEGOTIATE) {
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this.reNegotiate = true;
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} else if (messageType === constants.TNS_MSG_TYPE_PROTOCOL) {
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this.protocolMessage.processMessage(buf, messageType);
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} else if (messageType === constants.TNS_MSG_TYPE_DATA_TYPES) {
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this.dataTypeMessage.processMessage(buf, messageType);
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} else {
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this.authMessage.processMessage(buf, messageType);
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this.endOfResponse = this.authMessage.endOfResponse;
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}
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}
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}
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module.exports = FastAuthMessage;
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