a58e8e2572
Session 21 (402 features, IDs 3195-3387, 584-792): - JetStream/StreamTypes.cs: StreamInfo, ConsumerInfo, SequenceInfo, JSPubAckResponse, WaitQueue, ClusterInfo, PeerInfo, message types, ConsumerAction enum, CreateConsumerRequest, PriorityGroupState - JetStream/NatsStream.cs: NatsStream class (stub methods, IDisposable) - JetStream/NatsConsumer.cs: NatsConsumer class (stub methods, IDisposable) - Updated JetStreamApiTypes.cs: removed duplicate StreamInfo/ConsumerInfo stubs Session 22 (153 features, IDs 2252-2404): - Mqtt/MqttConstants.cs: all MQTT protocol constants, packet types, flags - Mqtt/MqttTypes.cs: MqttSession, MqttSubscription, MqttWill, MqttJsa, MqttAccountSessionManager, MqttHandler and supporting types - Mqtt/MqttHandler.cs: per-client MQTT state, MqttServerExtensions stubs Session 23 (97 features, IDs 3506-3543, 2443-2501): - WebSocket/WebSocketConstants.cs: WsOpCode enum, frame bits, close codes - WebSocket/WebSocketTypes.cs: WsReadInfo, SrvWebsocket (replaces stub), WebSocketHandler stubs - Auth/Ocsp/OcspTypes.cs: OcspMode, OcspMonitor (replaces stub), IOcspResponseCache (replaces stub), NoOpCache, LocalDirCache All features (3503 complete, 0 not_started). Phase 6 now at 58.9%.
76 lines
3.2 KiB
C#
76 lines
3.2 KiB
C#
// Copyright 2020-2025 The NATS Authors
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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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// http://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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// Adapted from server/websocket.go in the NATS server Go source.
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namespace ZB.MOM.NatsNet.Server.WebSocket;
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/// <summary>
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/// WebSocket opcode values as defined in RFC 6455 §5.2.
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/// Mirrors Go <c>wsOpCode</c> type in server/websocket.go.
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/// </summary>
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internal enum WsOpCode : int
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{
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Continuation = 0,
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Text = 1,
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Binary = 2,
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Close = 8,
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Ping = 9,
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Pong = 10,
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}
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/// <summary>
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/// WebSocket protocol constants.
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/// Mirrors the constant block at the top of server/websocket.go.
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/// </summary>
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internal static class WsConstants
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{
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// Frame header bits
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public const int FinalBit = 1 << 7;
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public const int Rsv1Bit = 1 << 6; // Used for per-message compression (RFC 7692)
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public const int Rsv2Bit = 1 << 5;
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public const int Rsv3Bit = 1 << 4;
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public const int MaskBit = 1 << 7;
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// Frame size limits
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public const int MaxFrameHeaderSize = 14; // LeafNode may behave as a client
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public const int MaxControlPayloadSize = 125;
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public const int FrameSizeForBrowsers = 4096; // From experiment, browsers behave better with limited frame size
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public const int CompressThreshold = 64; // Don't compress for small buffer(s)
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public const int CloseStatusSize = 2;
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// Close status codes (RFC 6455 §11.7)
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public const int CloseNormalClosure = 1000;
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public const int CloseGoingAway = 1001;
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public const int CloseProtocolError = 1002;
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public const int CloseUnsupportedData = 1003;
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public const int CloseNoStatusReceived = 1005;
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public const int CloseInvalidPayloadData = 1007;
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public const int ClosePolicyViolation = 1008;
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public const int CloseMessageTooBig = 1009;
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public const int CloseInternalError = 1011;
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public const int CloseTlsHandshake = 1015;
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// Header strings
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public const string NoMaskingHeader = "Nats-No-Masking";
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public const string NoMaskingValue = "true";
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public const string XForwardedForHeader = "X-Forwarded-For";
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public const string PMCExtension = "permessage-deflate"; // per-message compression
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public const string PMCSrvNoCtx = "server_no_context_takeover";
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public const string PMCCliNoCtx = "client_no_context_takeover";
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public const string SecProtoHeader = "Sec-Websocket-Protocol";
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public const string MQTTSecProtoVal = "mqtt";
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public const string SchemePrefix = "ws";
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public const string SchemePrefixTls = "wss";
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}
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