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hopefully fix some issues with rcon socket

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This commit is contained in:
RaidMax 2022-03-02 18:21:08 -06:00
parent e6e56d8d14
commit ef70496546
1 changed files with 110 additions and 41 deletions
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137
Integrations/Cod/CodRConConnection.cs
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@ -50,37 +50,10 @@ namespace Integrations.Cod
public async Task<string[]> SendQueryAsync(StaticHelpers.QueryType type, string parameters = "",
CancellationToken token = default)
{
try
{
return await SendQueryAsyncInternal(type, parameters, token);
}
catch (OperationCanceledException)
{
_log.LogWarning("Timed out waiting for RCon response");
throw new RConException("Did not received RCon response in allocated time frame");
}
finally
{
var state = ActiveQueries[Endpoint];
if (state.OnComplete.CurrentCount == 0)
{
state.OnComplete.Release(1);
state.ConnectionAttempts = 0;
}
if (state.OnReceivedData.CurrentCount == 0)
{
state.OnReceivedData.Release(1);
}
if (state.OnSentData.CurrentCount == 0)
{
state.OnSentData.Release(1);
}
}
}
private async Task<string[]> SendQueryAsyncInternal(StaticHelpers.QueryType type, string parameters = "", CancellationToken token = default)
{
if (!ActiveQueries.ContainsKey(this.Endpoint))
@ -93,14 +66,36 @@ namespace Integrations.Cod
_log.LogDebug("Waiting for semaphore to be released [{Endpoint}]", Endpoint);
// enter the semaphore so only one query is sent at a time per server.
try
{
await connectionState.OnComplete.WaitAsync(token);
}
catch (OperationCanceledException)
{
throw new RConException("Timed out waiting for access to rcon socket");
}
var timeSinceLastQuery = (DateTime.Now - connectionState.LastQuery).TotalMilliseconds;
if (timeSinceLastQuery < config.FloodProtectInterval)
{
try
{
await Task.Delay(config.FloodProtectInterval - (int)timeSinceLastQuery, token);
}
catch (OperationCanceledException)
{
throw new RConException("Timed out waiting for flood protect to expire");
}
finally
{
if (connectionState.OnComplete.CurrentCount == 0)
{
connectionState.OnComplete.Release(1);
}
}
}
connectionState.LastQuery = DateTime.Now;
@ -125,13 +120,19 @@ namespace Integrations.Cod
{
case StaticHelpers.QueryType.GET_DVAR:
waitForResponse |= true;
payload = string.Format(config.CommandPrefixes.RConGetDvar, convertedRConPassword, convertedParameters + '\0').Select(Convert.ToByte).ToArray();
payload = string
.Format(config.CommandPrefixes.RConGetDvar, convertedRConPassword,
convertedParameters + '\0').Select(Convert.ToByte).ToArray();
break;
case StaticHelpers.QueryType.SET_DVAR:
payload = string.Format(config.CommandPrefixes.RConSetDvar, convertedRConPassword, convertedParameters + '\0').Select(Convert.ToByte).ToArray();
payload = string
.Format(config.CommandPrefixes.RConSetDvar, convertedRConPassword,
convertedParameters + '\0').Select(Convert.ToByte).ToArray();
break;
case StaticHelpers.QueryType.COMMAND:
payload = string.Format(config.CommandPrefixes.RConCommand, convertedRConPassword, convertedParameters + '\0').Select(Convert.ToByte).ToArray();
payload = string
.Format(config.CommandPrefixes.RConCommand, convertedRConPassword,
convertedParameters + '\0').Select(Convert.ToByte).ToArray();
break;
case StaticHelpers.QueryType.GET_STATUS:
waitForResponse |= true;
@ -143,7 +144,8 @@ namespace Integrations.Cod
break;
case StaticHelpers.QueryType.COMMAND_STATUS:
waitForResponse |= true;
payload = string.Format(config.CommandPrefixes.RConCommand, convertedRConPassword, "status\0").Select(Convert.ToByte).ToArray();
payload = string.Format(config.CommandPrefixes.RConCommand, convertedRConPassword, "status\0")
.Select(Convert.ToByte).ToArray();
break;
}
}
@ -152,7 +154,7 @@ namespace Integrations.Cod
// e.g: emoji -> windows-1252
catch (OverflowException ex)
{
connectionState.OnComplete.Release(1);
using (LogContext.PushProperty("Server", Endpoint.ToString()))
{
_log.LogError(ex, "Could not convert RCon data payload to desired encoding {encoding} {params}",
@ -162,6 +164,14 @@ namespace Integrations.Cod
throw new RConException($"Invalid character encountered when converting encodings");
}
finally
{
if (connectionState.OnComplete.CurrentCount == 0)
{
connectionState.OnComplete.Release(1);
}
}
byte[][] response = null;
retrySend:
@ -170,7 +180,7 @@ namespace Integrations.Cod
using (LogContext.PushProperty("Server", Endpoint.ToString()))
{
_log.LogInformation(
"Retrying RCon message ({ConnectionAttempts}/{AllowedConnectionFailures} attempts) with parameters {payload}",
"Retrying RCon message ({ConnectionAttempts}/{AllowedConnectionFailures} attempts) with parameters {Payload}",
connectionState.ConnectionAttempts,
_retryAttempts, parameters);
}
@ -184,8 +194,46 @@ namespace Integrations.Cod
{
connectionState.SendEventArgs.UserToken = socket;
connectionState.ConnectionAttempts++;
// wait for send to complete
try
{
await connectionState.OnSentData.WaitAsync(token);
}
catch (OperationCanceledException)
{
throw new RConException("Timed out waiting for access to RCon send socket");
}
finally
{
if (connectionState.OnComplete.CurrentCount == 0 )
{
connectionState.OnComplete.Release(1);
}
}
// wait for receive to complete
try
{
await connectionState.OnReceivedData.WaitAsync(token);
}
catch (OperationCanceledException)
{
throw new RConException("Timed out waiting for access to RCon receive socket");
}
finally
{
if (connectionState.OnComplete.CurrentCount == 0 )
{
connectionState.OnComplete.Release(1);
}
if (connectionState.OnSentData.CurrentCount == 0)
{
connectionState.OnSentData.Release(1);
}
}
connectionState.BytesReadPerSegment.Clear();
var exceptionCaught = false;
@ -218,7 +266,16 @@ namespace Integrations.Cod
if (connectionState.ConnectionAttempts < _retryAttempts)
{
exceptionCaught = true;
try
{
await Task.Delay(StaticHelpers.SocketTimeout(connectionState.ConnectionAttempts), token);
}
catch (OperationCanceledException)
{
throw new RConException("Timed out waiting on delay retry");
}
goto retrySend;
}
@ -292,7 +349,7 @@ namespace Integrations.Cod
throw new RConException("Unexpected response header from server");
}
var splitResponse = headerSplit.Last().Split(new char[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
var splitResponse = headerSplit.Last().Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
return splitResponse;
}
@ -396,7 +453,14 @@ namespace Integrations.Cod
_log.LogWarning("Socket timed out while sending RCon data on attempt {Attempt}",
connectionState.ConnectionAttempts);
}
rconSocket.Close();
if (connectionState.OnSentData.CurrentCount == 0)
{
connectionState.OnSentData.Release(1);
}
throw new NetworkException("Timed out sending RCon data", rconSocket);
}
}
@ -444,6 +508,11 @@ namespace Integrations.Cod
}
}
if (connectionState.OnReceivedData.CurrentCount == 0)
{
connectionState.OnReceivedData.Release(1);
}
rconSocket.Close();
throw new NetworkException("Timed out receiving RCon response", rconSocket);
}