public void EnumerateHeaders(OnHeaderEnumerationDelegate callback)
{
if (!HasHeader("Host"))
{
SetHeader("Host", CurrentUri.Authority);
}
if (IsRedirected && !HasHeader("Referer"))
{
AddHeader("Referer", Uri.ToString());
}
if (!HasHeader("Accept-Encoding"))
{
AddHeader("Accept-Encoding", "gzip, identity");
}
if (HasProxy && !HasHeader("Proxy-Connection"))
{
AddHeader("Proxy-Connection", (!IsKeepAlive) ? "Close" : "Keep-Alive");
}
if (!HasHeader("Connection"))
{
AddHeader("Connection", (!IsKeepAlive) ? "Close, TE" : "Keep-Alive, TE");
}
if (!HasHeader("TE"))
{
AddHeader("TE", "identity");
}
if (!HasHeader("User-Agent"))
{
AddHeader("User-Agent", "VRC.Core.BestHTTP");
}
long num = -1L;
if (UploadStream == null)
{
byte[] entityBody = GetEntityBody();
num = ((entityBody != null) ? entityBody.Length : 0);
if (RawData == null && (FormImpl != null || (FieldCollector != null && !FieldCollector.IsEmpty)))
{
SelectFormImplementation();
if (FormImpl != null)
{
FormImpl.PrepareRequest(this);
}
}
}
else
{
num = UploadStreamLength;
if (num == -1)
{
SetHeader("Transfer-Encoding", "Chunked");
}
if (!HasHeader("Content-Type"))
{
SetHeader("Content-Type", "application/octet-stream");
}
}
if (num != -1 && !HasHeader("Content-Length"))
{
SetHeader("Content-Length", num.ToString());
}
if (HasProxy && Proxy.Credentials != null)
{
switch (Proxy.Credentials.Type)
{
case AuthenticationTypes.Basic:
SetHeader("Proxy-Authorization", "Basic " + Convert.ToBase64String(Encoding.UTF8.GetBytes(Proxy.Credentials.UserName + ":" + Proxy.Credentials.Password)));
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
{
Digest digest = DigestStore.Get(Proxy.Address);
if (digest != null)
{
string value = digest.GenerateResponseHeader(this, Proxy.Credentials);
if (!string.IsNullOrEmpty(value))
{
SetHeader("Proxy-Authorization", value);
}
}
break;
}
}
}
if (Credentials != null)
{
switch (Credentials.Type)
{
case AuthenticationTypes.Basic:
SetHeader("Authorization", "Basic " + Convert.ToBase64String(Encoding.UTF8.GetBytes(Credentials.UserName + ":" + Credentials.Password)));
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
{
Digest digest2 = DigestStore.Get(CurrentUri);
if (digest2 != null)
{
string value2 = digest2.GenerateResponseHeader(this, Credentials);
if (!string.IsNullOrEmpty(value2))
{
SetHeader("Authorization", value2);
}
}
break;
}
}
}
List <Cookie> list = (!IsCookiesEnabled) ? null : CookieJar.Get(CurrentUri);
if (list == null || list.Count == 0)
{
list = customCookies;
}
else if (customCookies != null)
{
for (int i = 0; i < customCookies.Count; i++)
{
Cookie customCookie = customCookies[i];
int num2 = list.FindIndex((Cookie c) => c.Name.Equals(customCookie.Name));
if (num2 >= 0)
{
list[num2] = customCookie;
}
else
{
list.Add(customCookie);
}
}
}
if (list != null && list.Count > 0)
{
bool flag = true;
string text = string.Empty;
bool flag2 = HTTPProtocolFactory.IsSecureProtocol(CurrentUri);
SupportedProtocols protocolFromUri = HTTPProtocolFactory.GetProtocolFromUri(CurrentUri);
foreach (Cookie item in list)
{
if ((!item.IsSecure || (item.IsSecure && flag2)) && (!item.IsHttpOnly || (item.IsHttpOnly && protocolFromUri == SupportedProtocols.HTTP)))
{
if (!flag)
{
text += "; ";
}
else
{
flag = false;
}
text += item.ToString();
item.LastAccess = DateTime.UtcNow;
}
}
SetHeader("Cookie", text);
}
if (callback != null)
{
foreach (KeyValuePair <string, List <string> > header in Headers)
{
callback(header.Key, header.Value);
}
}
}
private void Connect()
{
Uri uri = (!base.CurrentRequest.HasProxy) ? base.CurrentRequest.CurrentUri : base.CurrentRequest.Proxy.Address;
if (Client == null)
{
Client = new TcpClient();
}
if (!Client.Connected)
{
Client.ConnectTimeout = base.CurrentRequest.ConnectTimeout;
Client.Connect(uri.Host, uri.Port);
if (HTTPManager.Logger.Level <= Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Connected to " + uri.Host + ":" + uri.Port.ToString());
}
}
else if (HTTPManager.Logger.Level <= Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Already connected to " + uri.Host + ":" + uri.Port.ToString());
}
lock (HTTPManager.Locker)
{
base.StartTime = DateTime.UtcNow;
}
if (Stream == null)
{
bool flag = HTTPProtocolFactory.IsSecureProtocol(base.CurrentRequest.CurrentUri);
if (base.HasProxy && (!base.Proxy.IsTransparent || (flag && base.Proxy.NonTransparentForHTTPS)))
{
Stream = Client.GetStream();
BinaryWriter binaryWriter = new BinaryWriter(Stream);
bool flag2;
do
{
flag2 = false;
binaryWriter.SendAsASCII($"CONNECT {base.CurrentRequest.CurrentUri.Host}:{base.CurrentRequest.CurrentUri.Port} HTTP/1.1");
binaryWriter.Write(HTTPRequest.EOL);
binaryWriter.SendAsASCII("Proxy-Connection: Keep-Alive");
binaryWriter.Write(HTTPRequest.EOL);
binaryWriter.SendAsASCII("Connection: Keep-Alive");
binaryWriter.Write(HTTPRequest.EOL);
binaryWriter.SendAsASCII($"Host: {base.CurrentRequest.CurrentUri.Host}:{base.CurrentRequest.CurrentUri.Port}");
binaryWriter.Write(HTTPRequest.EOL);
if (base.HasProxy && base.Proxy.Credentials != null)
{
switch (base.Proxy.Credentials.Type)
{
case AuthenticationTypes.Basic:
binaryWriter.Write(string.Format("Proxy-Authorization: {0}", "Basic " + Convert.ToBase64String(Encoding.UTF8.GetBytes(base.Proxy.Credentials.UserName + ":" + base.Proxy.Credentials.Password))).GetASCIIBytes());
binaryWriter.Write(HTTPRequest.EOL);
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
{
Digest digest = DigestStore.Get(base.Proxy.Address);
if (digest != null)
{
string text = digest.GenerateResponseHeader(base.CurrentRequest, base.Proxy.Credentials);
if (!string.IsNullOrEmpty(text))
{
binaryWriter.Write($"Proxy-Authorization: {text}".GetASCIIBytes());
binaryWriter.Write(HTTPRequest.EOL);
}
}
break;
}
}
}
binaryWriter.Write(HTTPRequest.EOL);
binaryWriter.Flush();
base.CurrentRequest.ProxyResponse = new HTTPResponse(base.CurrentRequest, Stream, isStreamed: false, isFromCache: false);
if (!base.CurrentRequest.ProxyResponse.Receive())
{
throw new Exception("Connection to the Proxy Server failed!");
}
if (HTTPManager.Logger.Level <= Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Proxy returned - status code: " + base.CurrentRequest.ProxyResponse.StatusCode + " message: " + base.CurrentRequest.ProxyResponse.Message);
}
int statusCode = base.CurrentRequest.ProxyResponse.StatusCode;
if (statusCode == 407)
{
string text2 = DigestStore.FindBest(base.CurrentRequest.ProxyResponse.GetHeaderValues("proxy-authenticate"));
if (!string.IsNullOrEmpty(text2))
{
Digest orCreate = DigestStore.GetOrCreate(base.Proxy.Address);
orCreate.ParseChallange(text2);
if (base.Proxy.Credentials != null && orCreate.IsUriProtected(base.Proxy.Address) && (!base.CurrentRequest.HasHeader("Proxy-Authorization") || orCreate.Stale))
{
flag2 = true;
}
}
}
else if (!base.CurrentRequest.ProxyResponse.IsSuccess)
{
throw new Exception($"Proxy returned Status Code: \"{base.CurrentRequest.ProxyResponse.StatusCode}\", Message: \"{base.CurrentRequest.ProxyResponse.Message}\" and Response: {base.CurrentRequest.ProxyResponse.DataAsText}");
}
}while (flag2);
}
if (flag)
{
if (base.CurrentRequest.UseAlternateSSL)
{
TlsClientProtocol tlsClientProtocol = new TlsClientProtocol(Client.GetStream(), new SecureRandom());
List <string> list = new List <string>(1);
list.Add(base.CurrentRequest.CurrentUri.Host);
TlsClientProtocol tlsClientProtocol2 = tlsClientProtocol;
Uri currentUri = base.CurrentRequest.CurrentUri;
object verifyer;
if (base.CurrentRequest.CustomCertificateVerifyer == null)
{
ICertificateVerifyer certificateVerifyer = new AlwaysValidVerifyer();
verifyer = certificateVerifyer;
}
else
{
verifyer = base.CurrentRequest.CustomCertificateVerifyer;
}
tlsClientProtocol2.Connect(new LegacyTlsClient(currentUri, (ICertificateVerifyer)verifyer, base.CurrentRequest.CustomClientCredentialsProvider, list));
Stream = tlsClientProtocol.Stream;
}
else
{
SslStream sslStream = new SslStream(Client.GetStream(), leaveInnerStreamOpen: false, (object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors errors) => base.CurrentRequest.CallCustomCertificationValidator(cert, chain));
if (!sslStream.IsAuthenticated)
{
sslStream.AuthenticateAsClient(base.CurrentRequest.CurrentUri.Host);
}
Stream = sslStream;
}
}
else
{
Stream = Client.GetStream();
}
}
}
