public void FromReader(DataReader reader, DataFrames.DataKey root, Utils.Logger logger)
{
if (Config.PrefixLen > 0)
{
root.AddValue("Prefix", reader.ReadBytes(Config.PrefixLen, true));
}
ulong length = ReadLength(reader, logger);
logger.LogVerbose("Read length field of {0} bytes", length);
byte[] data = reader.ReadBytes((int)(length * Config.Stride) + Config.Adjustment, true);
root.AddValue("Data", data);
}
public void ToWriter(DataFrames.DataWriter writer, DataFrames.DataKey root, Utils.Logger logger)
{
MemoryStream stm = new MemoryStream();
DataWriter w = new DataWriter(stm);
foreach (DataNode node in root.SubNodes)
{
node.ToWriter(w);
}
byte[] data = stm.ToArray();
logger.LogVerbose("Writing length field of {0} bytes", data.Length);
if ((data.Length % Config.Stride) != 0)
{
logger.LogWarning("Data length of {0} is not a multiple of stride {1}", data.Length, Config.Stride);
}
WriteLength(writer, (ulong)(data.Length - Config.Adjustment) / Config.Stride, logger);
writer.Write(stm.ToArray());
}
/// <summary>
/// Method to create a proxy client
/// </summary>
/// <param name="logger">The logger to use</param>
/// <returns>The new proxy client</returns>
public override ProxyClient Create(Utils.Logger logger)
{
ProxyClient ret = new IpProxyClient();
try
{
RegistryKey settings = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings");
int enabled = (int)settings.GetValue("ProxyEnable", 0);
if (enabled != 0)
{
string autoConfigUrl = settings.GetValue("AutoConfigURL") as string;
if (autoConfigUrl != null)
{
Uri autoConfigUri = new Uri(autoConfigUrl, UriKind.Absolute);
if ((_scriptFactory == null) || (!_scriptFactory.ScriptUri.Equals(autoConfigUri)))
{
using (WebClient client = new WebClient())
{
client.Proxy = null;
string scriptData = client.DownloadString(autoConfigUrl);
logger.LogVerbose("Received auto config script from {0}", autoConfigUrl);
logger.LogVerbose(scriptData);
_scriptFactory = new ScriptProxyClientFactory();
_scriptFactory.ScriptUri = autoConfigUri;
_scriptFactory.Script = scriptData;
}
}
ret = _scriptFactory.Create(logger);
}
else
{
string proxyServer = settings.GetValue("ProxyServer") as string;
if (proxyServer != null)
{
string[] servers = proxyServer.ToLower().Split(new[] { ' ', ';' }, StringSplitOptions.RemoveEmptyEntries);
string currServer = null;
bool socks = false;
// Take socks in preference, otherwise accept HTTP or default
foreach (string server in servers)
{
if (server.Contains('='))
{
if (server.StartsWith("socks="))
{
currServer = server.Substring(6).Trim();
logger.LogVerbose("Found system SOCKS server {0}", currServer);
socks = true;
break;
}
else if (server.StartsWith("http="))
{
currServer = server.Substring(5).Trim();
logger.LogVerbose("Found system HTTP proxy {0}", currServer);
}
}
else
{
currServer = server.Trim();
logger.LogVerbose("Found default HTTP proxy {0}", currServer);
}
}
if (currServer != null)
{
string host = null;
int port = 0;
if (currServer.Contains("/"))
{
if (Uri.IsWellFormedUriString(currServer, UriKind.Absolute))
{
Uri uri = new Uri(currServer);
host = uri.Host;
port = uri.Port;
}
}
else
{
string[] values = currServer.Split(':');
if (values.Length == 2)
{
host = values[0].Trim();
int.TryParse(values[1].Trim(), out port);
}
}
if (String.IsNullOrWhiteSpace(host) || (port <= 0) || (port > 65535))
{
logger.LogError("Invalid system proxy string {0}", currServer);
}
else
{
if (socks)
{
ret = new SocksProxyClient(host, port, false, SocksProxyClient.SupportedVersion.Version4, false);
}
else
{
ret = new HttpProxyClient(host, port, false);
}
}
}
}
}
}
}
catch (SecurityException)
{
}
catch (UnauthorizedAccessException)
{
}
catch (WebException ex)
{
logger.LogException(ex);
}
return(ret);
}
