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[Modify] Polish it

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sta 2020-12-15 19:45:16 +09:00
parent ad38a23eb9
commit dc4f17ef00
1 changed files with 16 additions and 6 deletions
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22
websocket-sharp/Net/HttpListenerContext.cs
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@ -287,18 +287,28 @@ namespace WebSocketSharp.Net
/// </exception>
public HttpListenerWebSocketContext AcceptWebSocket (string protocol)
{
if (_websocketContext != null)
throw new InvalidOperationException ("The accepting is already in progress.");
if (_websocketContext != null) {
var msg = "The accepting is already in progress.";
throw new InvalidOperationException (msg);
}
if (protocol != null) {
if (protocol.Length == 0)
throw new ArgumentException ("An empty string.", "protocol");
if (protocol.Length == 0) {
var msg = "An empty string.";
if (!protocol.IsToken ())
throw new ArgumentException ("Contains an invalid character.", "protocol");
throw new ArgumentException (msg, "protocol");
}
if (!protocol.IsToken ()) {
var msg = "It contains an invalid character.";
throw new ArgumentException (msg, "protocol");
}
}
_websocketContext = new HttpListenerWebSocketContext (this, protocol);
return _websocketContext;
}