public async Task <WtcSocket> WideClientConnectAsync(string pcid, WideTunnelClientOptions clientOptions, bool noCache, CancellationToken cancel = default)
{
bool retryFlag = false;
L_RETRY:
WtConnectParam connectParam = await WideClientConnectInnerAsync(pcid, clientOptions, noCache, cancel);
$"WideClientConnect: pcid {pcid}: Redirecting to {connectParam.HostName}:{connectParam.Port} (CacheUsed = {connectParam.CacheUsed}) ..."._Debug();
try
{
ConnSock tcpSock = await this.TcpIp.ConnectAsync(new TcpConnectParam(connectParam.HostName, connectParam.Port, AddressFamily.InterNetwork, connectTimeout : CoresConfig.WtcConfig.WpcTimeoutMsec, dnsTimeout : CoresConfig.WtcConfig.WpcTimeoutMsec), cancel);
try
{
ConnSock targetSock = tcpSock;
try
{
PalSslClientAuthenticationOptions sslOptions = new PalSslClientAuthenticationOptions(connectParam.HostName, false, (cert) => this.CheckValidationCallback(this, cert.NativeCertificate, null, SslPolicyErrors.None));
SslSock sslSock = new SslSock(tcpSock);
try
{
await sslSock.StartSslClientAsync(sslOptions, cancel);
targetSock = sslSock;
}
catch
{
await sslSock._DisposeSafeAsync();
throw;
}
WtcSocket wtcSocket = new WtcSocket(targetSock, new WtcOptions(this, connectParam));
await wtcSocket.StartWtcAsync(cancel);
return(wtcSocket);
}
catch
{
await targetSock._DisposeSafeAsync();
throw;
}
}
catch
{
await tcpSock._DisposeSafeAsync();
throw;
}
}
catch
{
if (connectParam.CacheUsed && retryFlag == false)
{
retryFlag = true;
// 接続キャッシュを使用して接続することに失敗した
// 場合はキャッシュを消去して再試行する
WideTunnel.ConnectParamCache.Delete(pcid);
$"WideClientConnect: pcid {pcid}: Connect with Session Cache Failed. Retrying..."._Debug();
goto L_RETRY;
}
throw;
}
}
async Task <WtConnectParam> WideClientConnectInnerAsync(string pcid, WideTunnelClientOptions clientOptions, bool noCache, CancellationToken cancel = default)
{
if (noCache == false)
{
WtConnectParam?cached = ConnectParamCache[pcid];
if (cached != null)
{
var ret = cached._CloneDeep();
ret.CacheUsed = true;
return(ret);
}
}
Pack r = new Pack();
r.AddStr("SvcName", Options.SvcName);
r.AddStr("Pcid", pcid);
r.AddSInt("Ver", CoresConfig.WtcConfig.PseudoVer);
r.AddSInt("Build", CoresConfig.WtcConfig.PseudoBuild);
r.AddInt("ClientOptions", (uint)clientOptions.Flags);
r.AddData("ClientId", Options.ClientId);
var p = await WtWpcCall("ClientConnect", r, cancel);
p.ThrowIfError();
WtConnectParam c = new WtConnectParam
{
HostName = p["Hostname"].StrValueNonNullCheck,
HostNameForProxy = p["HostNameForProxy"].StrValueNonNullCheck,
Port = p["Port"].SIntValue,
SessionId = p["SessionId"].DataValueNonNull.ToArray(),
ServerMask64 = p["ServerMask64"].Int64Value,
WebSocketWildCardDomainName = p["WebSocketWildCardDomainName"].StrValueNonNull,
ClientOptions = clientOptions._CloneDeep(),
IsStandaloneMode = p["IsStandaloneMode"].BoolValue,
};
if (c.WebSocketWildCardDomainName._IsEmpty())
{
throw new CoresLibException("c.WebSocketWildCardDomainName is empty.");
}
if (c.HostName._IsSamei("<<!!samehost!!>>"))
{
string hostTmp = p["__remote_hostname"].StrValueNonNull;
int portTmp = p["__remote_port"].SIntValue;
if (hostTmp._IsFilled() && portTmp != 0)
{
c.HostName = hostTmp;
c.Port = portTmp;
}
}
c.CacheUsed = false;
if (noCache == false)
{
WideTunnel.ConnectParamCache[pcid] = c._CloneDeep();
}
return(c);
}
public WtcOptions(WideTunnel wt, WtConnectParam param)
{
this.WideTunnel = wt;
this.ConnectParam = param;
}