/// <summary>
/// Gets the connection cache key.
/// </summary>
/// <param name="args">The session event arguments.</param>
/// <param name="applicationProtocol"></param>
/// <returns></returns>
internal async Task <string> GetConnectionCacheKey(ProxyServer server, SessionEventArgsBase args,
SslApplicationProtocol applicationProtocol)
{
List <SslApplicationProtocol> applicationProtocols = null;
if (applicationProtocol != default)
{
applicationProtocols = new List <SslApplicationProtocol> {
applicationProtocol
};
}
ExternalProxy customUpStreamProxy = null;
bool isHttps = args.IsHttps;
if (server.GetCustomUpStreamProxyFunc != null)
{
customUpStreamProxy = await server.GetCustomUpStreamProxyFunc(args);
}
args.CustomUpStreamProxyUsed = customUpStreamProxy;
return(GetConnectionCacheKey(
args.WebSession.Request.RequestUri.Host,
args.WebSession.Request.RequestUri.Port,
isHttps, applicationProtocols,
server, args.WebSession.UpStreamEndPoint ?? server.UpStreamEndPoint,
customUpStreamProxy ?? (isHttps ? server.UpStreamHttpsProxy : server.UpStreamHttpProxy)));
}
/// <summary>
/// Gets the connection cache key.
/// </summary>
/// <param name="server">The server.</param>
/// <param name="session">The session event arguments.</param>
/// <param name="applicationProtocol">The application protocol.</param>
/// <returns></returns>
internal async Task <string> GetConnectionCacheKey(ProxyServer server, SessionEventArgsBase session,
SslApplicationProtocol applicationProtocol)
{
List <SslApplicationProtocol>?applicationProtocols = null;
if (applicationProtocol != default)
{
applicationProtocols = new List <SslApplicationProtocol> {
applicationProtocol
};
}
var customUpStreamProxy = session.CustomUpStreamProxy;
bool isHttps = session.IsHttps;
if (customUpStreamProxy == null && server.GetCustomUpStreamProxyFunc != null)
{
customUpStreamProxy = await server.GetCustomUpStreamProxyFunc(session);
}
session.CustomUpStreamProxyUsed = customUpStreamProxy;
var uri = session.HttpClient.Request.RequestUri;
var upStreamEndPoint = session.HttpClient.UpStreamEndPoint ?? server.UpStreamEndPoint;
var upStreamProxy = customUpStreamProxy ?? (isHttps ? server.UpStreamHttpsProxy : server.UpStreamHttpProxy);
return(GetConnectionCacheKey(uri.Host, uri.Port, isHttps, applicationProtocols, upStreamEndPoint,
upStreamProxy));
}
/// <summary>
/// Create a server connection.
/// </summary>
/// <param name="server">The proxy server.</param>
/// <param name="session">The session event arguments.</param>
/// <param name="isConnect">Is this a CONNECT request.</param>
/// <param name="applicationProtocols"></param>
/// <param name="noCache">if set to <c>true</c> [no cache].</param>
/// <param name="cancellationToken">The cancellation token for this async task.</param>
/// <returns></returns>
internal async Task <TcpServerConnection> GetServerConnection(ProxyServer server, SessionEventArgsBase session, bool isConnect,
List <SslApplicationProtocol>?applicationProtocols, bool noCache, CancellationToken cancellationToken)
{
IExternalProxy?customUpStreamProxy = null;
bool isHttps = session.IsHttps;
if (server.GetCustomUpStreamProxyFunc != null)
{
customUpStreamProxy = await server.GetCustomUpStreamProxyFunc(session);
}
session.CustomUpStreamProxyUsed = customUpStreamProxy;
var uri = session.HttpClient.Request.RequestUri;
return(await GetServerConnection(
uri.Host,
uri.Port,
session.HttpClient.Request.HttpVersion,
isHttps, applicationProtocols, isConnect,
server, session, session.HttpClient.UpStreamEndPoint ?? server.UpStreamEndPoint,
customUpStreamProxy ?? (isHttps ? server.UpStreamHttpsProxy : server.UpStreamHttpProxy),
noCache, cancellationToken));
}
/// <summary>
/// Create a server connection.
/// </summary>
/// <param name="proxyServer">The proxy server.</param>
/// <param name="session">The session event arguments.</param>
/// <param name="isConnect">Is this a CONNECT request.</param>
/// <param name="applicationProtocols"></param>
/// <param name="noCache">if set to <c>true</c> [no cache].</param>
/// <param name="cancellationToken">The cancellation token for this async task.</param>
/// <returns></returns>
internal async Task <TcpServerConnection> GetServerConnection(ProxyServer proxyServer, SessionEventArgsBase session, bool isConnect,
List <SslApplicationProtocol>?applicationProtocols, bool noCache, CancellationToken cancellationToken)
{
IExternalProxy?customUpStreamProxy = null;
bool isHttps = session.IsHttps;
if (proxyServer.GetCustomUpStreamProxyFunc != null)
{
customUpStreamProxy = await proxyServer.GetCustomUpStreamProxyFunc(session);
}
session.CustomUpStreamProxyUsed = customUpStreamProxy;
var request = session.HttpClient.Request;
string host;
int port;
if (request.Authority.Length > 0)
{
var authority = request.Authority;
int idx = authority.IndexOf((byte)':');
if (idx == -1)
{
host = authority.GetString();
port = 80;
}
else
{
host = authority.Slice(0, idx).GetString();
port = int.Parse(authority.Slice(idx + 1).GetString());
}
}
else
{
var uri = request.RequestUri;
host = uri.Host;
port = uri.Port;
}
return(await GetServerConnection(
proxyServer, host, port,
session.HttpClient.Request.HttpVersion,
isHttps, applicationProtocols, isConnect,
session, session.HttpClient.UpStreamEndPoint ?? proxyServer.UpStreamEndPoint,
customUpStreamProxy ?? (isHttps ? proxyServer.UpStreamHttpsProxy : proxyServer.UpStreamHttpProxy),
noCache, cancellationToken));
}
/// <summary>
/// Create a server connection.
/// </summary>
/// <param name="args">The session event arguments.</param>
/// <param name="isConnect">Is this a CONNECT request.</param>
/// <param name="applicationProtocols"></param>
/// <param name="cancellationToken">The cancellation token for this async task.</param>
/// <returns></returns>
internal async Task <TcpServerConnection> GetServerConnection(ProxyServer server, SessionEventArgsBase args, bool isConnect,
List <SslApplicationProtocol> applicationProtocols, bool noCache, CancellationToken cancellationToken)
{
ExternalProxy customUpStreamProxy = null;
bool isHttps = args.IsHttps;
if (server.GetCustomUpStreamProxyFunc != null)
{
customUpStreamProxy = await server.GetCustomUpStreamProxyFunc(args);
}
args.CustomUpStreamProxyUsed = customUpStreamProxy;
return(await GetServerConnection(
args.WebSession.Request.RequestUri.Host,
args.WebSession.Request.RequestUri.Port,
args.WebSession.Request.HttpVersion,
isHttps, applicationProtocols, isConnect,
server, args.WebSession.UpStreamEndPoint ?? server.UpStreamEndPoint,
customUpStreamProxy ?? (isHttps ? server.UpStreamHttpsProxy : server.UpStreamHttpProxy),
noCache, cancellationToken));
}
