128 lines
3.6 KiB
C#
128 lines
3.6 KiB
C#
#region License
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/*
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* MessageEventArgs.cs
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*
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* The MIT License
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*
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* Copyright (c) 2012-2015 sta.blockhead
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#endregion
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using System;
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using System.Text;
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namespace WebSocketSharp
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{
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/// <summary>
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/// Contains the event data associated with a <see cref="WebSocket.OnMessage"/> event.
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/// </summary>
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/// <remarks>
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/// <para>
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/// A <see cref="WebSocket.OnMessage"/> event occurs when the <see cref="WebSocket"/> receives
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/// a text or binary message, or a Ping if the <see cref="WebSocket.EmitOnPing"/> property is
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/// set to <c>true</c>.
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/// </para>
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/// <para>
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/// If you would like to get the message data, you should access the <see cref="Data"/> or
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/// <see cref="RawData"/> property.
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/// </para>
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/// </remarks>
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public class MessageEventArgs : EventArgs
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{
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#region Private Fields
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private string _data;
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private bool _dataSet;
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private Opcode _opcode;
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private byte[] _rawData;
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#endregion
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#region Internal Constructors
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internal MessageEventArgs (WebSocketFrame frame)
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{
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_opcode = frame.Opcode;
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_rawData = frame.PayloadData.ApplicationData;
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}
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internal MessageEventArgs (Opcode opcode, byte[] rawData)
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{
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if ((ulong) rawData.LongLength > PayloadData.MaxLength)
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throw new WebSocketException (CloseStatusCode.TooBig);
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_opcode = opcode;
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_rawData = rawData;
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}
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#endregion
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#region Public Properties
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/// <summary>
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/// Gets the message data as a <see cref="string"/>.
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/// </summary>
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/// <value>
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/// A <see cref="string"/> that represents the message data,
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/// or <see langword="null"/> if the message data cannot be decoded to a string.
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/// </value>
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public string Data {
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get {
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if (!_dataSet) {
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_data = _opcode != Opcode.Binary
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? _rawData.UTF8Decode ()
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: BitConverter.ToString (_rawData);
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_dataSet = true;
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}
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return _data;
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}
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}
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/// <summary>
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/// Gets the message data as an array of <see cref="byte"/>.
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/// </summary>
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/// <value>
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/// An array of <see cref="byte"/> that represents the message data.
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/// </value>
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public byte[] RawData {
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get {
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return _rawData;
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}
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}
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/// <summary>
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/// Gets the type of the message.
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/// </summary>
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/// <value>
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/// <see cref="Opcode.Text"/>, <see cref="Opcode.Binary"/>, or <see cref="Opcode.Ping"/>.
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/// </value>
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public Opcode Type {
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get {
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return _opcode;
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}
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}
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#endregion
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}
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}
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