private void Connect()
{
Uri uri =
#if !BESTHTTP_DISABLE_PROXY
CurrentRequest.HasProxy ? CurrentRequest.Proxy.Address :
#endif
CurrentRequest.CurrentUri;
#region TCP Connection
if (Client == null)
{
Client = new TcpClient();
}
if (!Client.Connected)
{
Client.ConnectTimeout = CurrentRequest.ConnectTimeout;
#if NETFX_CORE || (UNITY_WP8 && !UNITY_EDITOR)
Client.UseHTTPSProtocol =
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
!CurrentRequest.UseAlternateSSL &&
#endif
HTTPProtocolFactory.IsSecureProtocol(uri);
#endif
Client.Connect(uri.Host, uri.Port);
if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Connected to " + uri.Host + ":" + uri.Port.ToString());
}
}
else if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Already connected to " + uri.Host + ":" + uri.Port.ToString());
}
#endregion
lock (HTTPManager.Locker)
StartTime = DateTime.UtcNow;
if (Stream == null)
{
bool isSecure = HTTPProtocolFactory.IsSecureProtocol(CurrentRequest.CurrentUri);
#if !BESTHTTP_DISABLE_PROXY
#region Proxy Handling
if (HasProxy && (!Proxy.IsTransparent || (isSecure && Proxy.NonTransparentForHTTPS)))
{
Stream = Client.GetStream();
var outStream = new BinaryWriter(Stream);
bool retry;
do
{
// If we have to becouse of a authentication request, we will switch it to true
retry = false;
outStream.SendAsASCII(string.Format("CONNECT {0}:{1} HTTP/1.1", CurrentRequest.CurrentUri.Host, CurrentRequest.CurrentUri.Port));
outStream.Write(HTTPRequest.EOL);
outStream.SendAsASCII("Proxy-Connection: Keep-Alive");
outStream.Write(HTTPRequest.EOL);
outStream.SendAsASCII("Connection: Keep-Alive");
outStream.Write(HTTPRequest.EOL);
outStream.SendAsASCII(string.Format("Host: {0}:{1}", CurrentRequest.CurrentUri.Host, CurrentRequest.CurrentUri.Port));
outStream.Write(HTTPRequest.EOL);
// Proxy Authentication
if (HasProxy && Proxy.Credentials != null)
{
switch (Proxy.Credentials.Type)
{
case AuthenticationTypes.Basic:
// With Basic authentication we don't want to wait for a challange, we will send the hash with the first request
outStream.Write(string.Format("Proxy-Authorization: {0}", string.Concat("Basic ", Convert.ToBase64String(Encoding.UTF8.GetBytes(Proxy.Credentials.UserName + ":" + Proxy.Credentials.Password)))).GetASCIIBytes());
outStream.Write(HTTPRequest.EOL);
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
var digest = DigestStore.Get(Proxy.Address);
if (digest != null)
{
string authentication = digest.GenerateResponseHeader(CurrentRequest, Proxy.Credentials);
if (!string.IsNullOrEmpty(authentication))
{
outStream.Write(string.Format("Proxy-Authorization: {0}", authentication).GetASCIIBytes());
outStream.Write(HTTPRequest.EOL);
}
}
break;
}
}
outStream.Write(HTTPRequest.EOL);
// Make sure to send all the wrote data to the wire
outStream.Flush();
CurrentRequest.ProxyResponse = new HTTPResponse(CurrentRequest, Stream, false, false);
// Read back the response of the proxy
if (!CurrentRequest.ProxyResponse.Receive(-1, true))
{
throw new Exception("Connection to the Proxy Server failed!");
}
if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Proxy returned - status code: " + CurrentRequest.ProxyResponse.StatusCode + " message: " + CurrentRequest.ProxyResponse.Message);
}
switch (CurrentRequest.ProxyResponse.StatusCode)
{
// Proxy authentication required
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.8
case 407:
{
string authHeader = DigestStore.FindBest(CurrentRequest.ProxyResponse.GetHeaderValues("proxy-authenticate"));
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(Proxy.Address);
digest.ParseChallange(authHeader);
if (Proxy.Credentials != null && digest.IsUriProtected(Proxy.Address) && (!CurrentRequest.HasHeader("Proxy-Authorization") || digest.Stale))
{
retry = true;
}
}
break;
}
default:
if (!CurrentRequest.ProxyResponse.IsSuccess)
{
throw new Exception(string.Format("Proxy returned Status Code: \"{0}\", Message: \"{1}\" and Response: {2}", CurrentRequest.ProxyResponse.StatusCode, CurrentRequest.ProxyResponse.Message, CurrentRequest.ProxyResponse.DataAsText));
}
break;
}
} while (retry);
}
#endregion
#endif // #if !BESTHTTP_DISABLE_PROXY
// We have to use CurrentRequest.CurrentUri here, becouse uri can be a proxy uri with a different protocol
if (isSecure)
{
#region SSL Upgrade
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
if (CurrentRequest.UseAlternateSSL)
{
var handler = new TlsClientProtocol(Client.GetStream(), new Org.BouncyCastle.Security.SecureRandom());
// http://tools.ietf.org/html/rfc3546#section-3.1
// It is RECOMMENDED that clients include an extension of type "server_name" in the client hello whenever they locate a server by a supported name type.
List <string> hostNames = new List <string>(1);
hostNames.Add(CurrentRequest.CurrentUri.Host);
handler.Connect(new LegacyTlsClient(CurrentRequest.CurrentUri,
CurrentRequest.CustomCertificateVerifyer == null ? new AlwaysValidVerifyer() : CurrentRequest.CustomCertificateVerifyer,
CurrentRequest.CustomClientCredentialsProvider,
hostNames));
Stream = handler.Stream;
}
else
#endif
{
#if !NETFX_CORE && !UNITY_WP8
SslStream sslStream = new SslStream(Client.GetStream(), false, (sender, cert, chain, errors) =>
{
return(CurrentRequest.CallCustomCertificationValidator(cert, chain));
});
if (!sslStream.IsAuthenticated)
{
sslStream.AuthenticateAsClient(CurrentRequest.CurrentUri.Host);
}
Stream = sslStream;
#else
Stream = Client.GetStream();
#endif
}
#endregion
}
else
{
Stream = Client.GetStream();
}
}
}
void ThreadFunc(object param)
{
bool alreadyReconnected = false;
bool redirected = false;
RetryCauses cause = RetryCauses.None;
#if LOCK_ON_FILE
object uriLock = null;
#endif
#if UNITY_WEBPLAYER
// Right now, no caching supported in the webplayer
if (!CurrentRequest.DisableCache)
{
CurrentRequest.DisableCache = true;
}
#endif
try
{
if (!HasProxy && CurrentRequest.HasProxy)
{
Proxy = CurrentRequest.Proxy;
}
// Lock only if we will use the cached entity.
#if LOCK_ON_FILE
if (!CurrentRequest.DisableCache)
{
Monitor.Enter(uriLock = HTTPCacheFileLock.Acquire(CurrentRequest.CurrentUri));
}
#endif
// Try load the full response from an already saved cache entity. If the response
if (TryLoadAllFromCache())
{
return;
}
if (Client != null && !Client.IsConnected())
{
Close();
}
do // of while (reconnect)
{
if (cause == RetryCauses.Reconnect)
{
Close();
#if NETFX_CORE
await Task.Delay(100);
#else
Thread.Sleep(100);
#endif
}
LastProcessedUri = CurrentRequest.CurrentUri;
cause = RetryCauses.None;
// Connect to the server
Connect();
if (State == HTTPConnectionStates.AbortRequested)
{
throw new Exception("AbortRequested");
}
// Setup cache control headers before we send out the request
if (!CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(CurrentRequest);
}
// Write the request to the stream
// sentRequest will be true if the request sent out successfully(no SocketException), so we can try read the response
bool sentRequest = CurrentRequest.SendOutTo(Stream);
// sentRequest only true if there are no exceptions during CurrentRequest.SendOutTo.
if (!sentRequest)
{
Close();
if (State == HTTPConnectionStates.TimedOut)
{
throw new Exception("AbortRequested");
}
// We will try again only once
if (!alreadyReconnected)
{
alreadyReconnected = true;
cause = RetryCauses.Reconnect;
}
}
// If sending out the request succeded, we will try read the response.
if (sentRequest)
{
bool received = Receive();
if (State == HTTPConnectionStates.TimedOut)
{
throw new Exception("AbortRequested");
}
if (!received && !alreadyReconnected)
{
alreadyReconnected = true;
cause = RetryCauses.Reconnect;
}
if (CurrentRequest.Response != null)
{
switch (CurrentRequest.Response.StatusCode)
{
// Not authorized
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.2
case 401:
{
string authHeader = CurrentRequest.Response.GetFirstHeaderValue("www-authenticate");
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(CurrentRequest.CurrentUri);
digest.ParseChallange(authHeader);
if (CurrentRequest.Credentials != null && digest.IsUriProtected(CurrentRequest.CurrentUri) && (!CurrentRequest.HasHeader("Authorization") || digest.Stale))
{
cause = RetryCauses.Authenticate;
}
}
goto default;
}
// Proxy authentication required
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.8
case 407:
{
if (CurrentRequest.HasProxy)
{
string authHeader = CurrentRequest.Response.GetFirstHeaderValue("proxy-authenticate");
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(CurrentRequest.Proxy.Address);
digest.ParseChallange(authHeader);
if (CurrentRequest.Proxy.Credentials != null && digest.IsUriProtected(CurrentRequest.Proxy.Address) && (!CurrentRequest.HasHeader("Proxy-Authorization") || digest.Stale))
{
cause = RetryCauses.ProxyAuthenticate;
}
}
}
goto default;
}
// Redirected
case 301: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.2
case 302: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.3
case 307: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.8
case 308: // http://tools.ietf.org/html/rfc7238
{
if (CurrentRequest.RedirectCount >= CurrentRequest.MaxRedirects)
{
goto default;
}
CurrentRequest.RedirectCount++;
string location = CurrentRequest.Response.GetFirstHeaderValue("location");
if (!string.IsNullOrEmpty(location))
{
Uri redirectUri = GetRedirectUri(location);
// Let the user to take some control over the redirection
if (!CurrentRequest.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", "OnBeforeRedirection returned False");
goto default;
}
// Remove the previously set Host header.
CurrentRequest.RemoveHeader("Host");
// Set the Referer header to the last Uri.
CurrentRequest.SetHeader("Referer", CurrentRequest.CurrentUri.ToString());
// Set the new Uri, the CurrentUri will return this while the IsRedirected property is true
CurrentRequest.RedirectUri = redirectUri;
// Discard the redirect response, we don't need it any more
CurrentRequest.Response = null;
redirected = CurrentRequest.IsRedirected = true;
}
else
#if !NETFX_CORE
{ throw new MissingFieldException(string.Format("Got redirect status({0}) without 'location' header!", CurrentRequest.Response.StatusCode.ToString())); }
#else
{ throw new Exception(string.Format("Got redirect status({0}) without 'location' header!", CurrentRequest.Response.StatusCode.ToString())); }
#endif
goto default;
}
default:
if (CurrentRequest.IsCookiesEnabled)
{
CookieJar.Set(CurrentRequest.Response);
}
TryStoreInCache();
break;
}
// If we have a response and the server telling us that it closed the connection after the message sent to us, then
// we will colse the connection too.
if (CurrentRequest.Response == null ||
CurrentRequest.Response.HasHeaderWithValue("connection", "close") ||
CurrentRequest.UseAlternateSSL)
{
Close();
}
}
}
} while (cause != RetryCauses.None);
}
catch (TimeoutException e)
{
CurrentRequest.Response = null;
CurrentRequest.Exception = e;
CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
Close();
}
catch (Exception e)
{
if (CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(CurrentRequest.CurrentUri);
}
// Something gone bad, Response must be null!
CurrentRequest.Response = null;
switch (State)
{
case HTTPConnectionStates.AbortRequested:
CurrentRequest.State = HTTPRequestStates.Aborted;
break;
case HTTPConnectionStates.TimedOut:
CurrentRequest.State = HTTPRequestStates.TimedOut;
break;
default:
CurrentRequest.Exception = e;
CurrentRequest.State = HTTPRequestStates.Error;
break;
}
Close();
}
finally
{
#if LOCK_ON_FILE
if (!CurrentRequest.DisableCache && uriLock != null)
{
Monitor.Exit(uriLock);
}
#endif
// Avoid state changes. While we are in this block changing the connection's State, on Unity's main thread
// the HTTPManager's OnUpdate will check the connections's State and call functions that can change the inner state of
// the object. (Like setting the CurrentRequest to null in function Recycle() causing a NullRef exception)
lock (HTTPManager.Locker)
{
if (CurrentRequest != null && CurrentRequest.Response != null && CurrentRequest.Response.IsUpgraded)
{
State = HTTPConnectionStates.Upgraded;
}
else
{
State = redirected ? HTTPConnectionStates.Redirected : (Client == null ? HTTPConnectionStates.Closed : HTTPConnectionStates.WaitForRecycle);
}
// Change the request's state only when the whole processing finished
if (CurrentRequest.State == HTTPRequestStates.Processing && (State == HTTPConnectionStates.Closed || State == HTTPConnectionStates.WaitForRecycle))
{
CurrentRequest.State = HTTPRequestStates.Finished;
}
if (CurrentRequest.State == HTTPRequestStates.ConnectionTimedOut)
{
State = HTTPConnectionStates.Closed;
}
LastProcessTime = DateTime.UtcNow;
}
HTTPCacheService.SaveLibrary();
CookieJar.Persist();
}
}
internal override void Connect(Stream stream, HTTPRequest request)
{
bool isSecure = HTTPProtocolFactory.IsSecureProtocol(request.CurrentUri);
if ((!this.IsTransparent || (isSecure && this.NonTransparentForHTTPS)))
{
using (var bufferedStream = new WriteOnlyBufferedStream(stream, HTTPRequest.UploadChunkSize))
using (var outStream = new BinaryWriter(bufferedStream, Encoding.UTF8))
{
bool retry;
do
{
// If we have to because of a authentication request, we will switch it to true
retry = false;
string connectStr = string.Format("CONNECT {0}:{1} HTTP/1.1", request.CurrentUri.Host, request.CurrentUri.Port.ToString());
HTTPManager.Logger.Information("HTTPConnection", "Sending " + connectStr);
outStream.SendAsASCII(connectStr);
outStream.Write(HTTPRequest.EOL);
outStream.SendAsASCII("Proxy-Connection: Keep-Alive");
outStream.Write(HTTPRequest.EOL);
outStream.SendAsASCII("Connection: Keep-Alive");
outStream.Write(HTTPRequest.EOL);
outStream.SendAsASCII(string.Format("Host: {0}:{1}", request.CurrentUri.Host, request.CurrentUri.Port.ToString()));
outStream.Write(HTTPRequest.EOL);
// Proxy Authentication
if (this.Credentials != null)
{
switch (this.Credentials.Type)
{
case AuthenticationTypes.Basic:
// With Basic authentication we don't want to wait for a challenge, we will send the hash with the first request
outStream.Write(string.Format("Proxy-Authorization: {0}", string.Concat("Basic ", Convert.ToBase64String(Encoding.UTF8.GetBytes(this.Credentials.UserName + ":" + this.Credentials.Password)))).GetASCIIBytes());
outStream.Write(HTTPRequest.EOL);
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
var digest = DigestStore.Get(this.Address);
if (digest != null)
{
string authentication = digest.GenerateResponseHeader(request, this.Credentials, true);
if (!string.IsNullOrEmpty(authentication))
{
string auth = string.Format("Proxy-Authorization: {0}", authentication);
if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Sending proxy authorization header: " + auth);
}
var bytes = auth.GetASCIIBytes();
outStream.Write(bytes);
outStream.Write(HTTPRequest.EOL);
VariableSizedBufferPool.Release(bytes);
}
}
break;
}
}
outStream.Write(HTTPRequest.EOL);
// Make sure to send all the wrote data to the wire
outStream.Flush();
request.ProxyResponse = new HTTPResponse(request, stream, false, false);
// Read back the response of the proxy
if (!request.ProxyResponse.Receive(-1, true))
{
throw new Exception("Connection to the Proxy Server failed!");
}
if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("HTTPConnection", "Proxy returned - status code: " + request.ProxyResponse.StatusCode + " message: " + request.ProxyResponse.Message + " Body: " + request.ProxyResponse.DataAsText);
}
switch (request.ProxyResponse.StatusCode)
{
// Proxy authentication required
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.8
case 407:
{
string authHeader = DigestStore.FindBest(request.ProxyResponse.GetHeaderValues("proxy-authenticate"));
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(this.Address);
digest.ParseChallange(authHeader);
if (this.Credentials != null && digest.IsUriProtected(this.Address) && (!request.HasHeader("Proxy-Authorization") || digest.Stale))
{
retry = true;
}
}
if (!retry)
{
throw new Exception(string.Format("Can't authenticate Proxy! Status Code: \"{0}\", Message: \"{1}\" and Response: {2}", request.ProxyResponse.StatusCode, request.ProxyResponse.Message, request.ProxyResponse.DataAsText));
}
break;
}
default:
if (!request.ProxyResponse.IsSuccess)
{
throw new Exception(string.Format("Proxy returned Status Code: \"{0}\", Message: \"{1}\" and Response: {2}", request.ProxyResponse.StatusCode, request.ProxyResponse.Message, request.ProxyResponse.DataAsText));
}
break;
}
} while (retry);
}// using outstream
}
}
void ThreadFunc(object param)
{
bool alreadyReconnected = false;
bool redirected = false;
RetryCauses cause = RetryCauses.None;
try
{
#if !BESTHTTP_DISABLE_PROXY
if (!HasProxy && CurrentRequest.HasProxy)
{
Proxy = CurrentRequest.Proxy;
}
#endif
#if !BESTHTTP_DISABLE_CACHING && (!UNITY_WEBGL || UNITY_EDITOR)
// Try load the full response from an already saved cache entity. If the response
if (TryLoadAllFromCache())
{
return;
}
#endif
if (Client != null && !Client.IsConnected())
{
Close();
}
do // of while (reconnect)
{
if (cause == RetryCauses.Reconnect)
{
Close();
#if NETFX_CORE
await Task.Delay(100);
#else
Thread.Sleep(100);
#endif
}
LastProcessedUri = CurrentRequest.CurrentUri;
cause = RetryCauses.None;
// Connect to the server
Connect();
if (State == HTTPConnectionStates.AbortRequested)
{
throw new Exception("AbortRequested");
}
#if !BESTHTTP_DISABLE_CACHING && (!UNITY_WEBGL || UNITY_EDITOR)
// Setup cache control headers before we send out the request
if (!CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(CurrentRequest);
}
#endif
// Write the request to the stream
// sentRequest will be true if the request sent out successfully(no SocketException), so we can try read the response
bool sentRequest = false;
try
{
#if !NETFX_CORE
Client.NoDelay = CurrentRequest.TryToMinimizeTCPLatency;
#endif
CurrentRequest.SendOutTo(Stream);
sentRequest = true;
}
catch (Exception ex)
{
Close();
if (State == HTTPConnectionStates.TimedOut ||
State == HTTPConnectionStates.AbortRequested)
{
throw new Exception("AbortRequested");
}
// We will try again only once
if (!alreadyReconnected && !CurrentRequest.DisableRetry)
{
alreadyReconnected = true;
cause = RetryCauses.Reconnect;
}
else // rethrow exception
{
throw ex;
}
}
// If sending out the request succeeded, we will try read the response.
if (sentRequest)
{
bool received = Receive();
if (State == HTTPConnectionStates.TimedOut ||
State == HTTPConnectionStates.AbortRequested)
{
throw new Exception("AbortRequested");
}
if (!received && !alreadyReconnected && !CurrentRequest.DisableRetry)
{
alreadyReconnected = true;
cause = RetryCauses.Reconnect;
}
if (CurrentRequest.Response != null)
{
#if !BESTHTTP_DISABLE_COOKIES && (!UNITY_WEBGL || UNITY_EDITOR)
// Try to store cookies before we do anything else, as we may remove the response deleting the cookies as well.
if (CurrentRequest.IsCookiesEnabled)
{
CookieJar.Set(CurrentRequest.Response);
}
#endif
switch (CurrentRequest.Response.StatusCode)
{
// Not authorized
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.2
case 401:
{
string authHeader = DigestStore.FindBest(CurrentRequest.Response.GetHeaderValues("www-authenticate"));
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(CurrentRequest.CurrentUri);
digest.ParseChallange(authHeader);
if (CurrentRequest.Credentials != null && digest.IsUriProtected(CurrentRequest.CurrentUri) && (!CurrentRequest.HasHeader("Authorization") || digest.Stale))
{
cause = RetryCauses.Authenticate;
}
}
goto default;
}
#if !BESTHTTP_DISABLE_PROXY
// Proxy authentication required
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.8
case 407:
{
if (CurrentRequest.HasProxy)
{
string authHeader = DigestStore.FindBest(CurrentRequest.Response.GetHeaderValues("proxy-authenticate"));
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(CurrentRequest.Proxy.Address);
digest.ParseChallange(authHeader);
if (CurrentRequest.Proxy.Credentials != null && digest.IsUriProtected(CurrentRequest.Proxy.Address) && (!CurrentRequest.HasHeader("Proxy-Authorization") || digest.Stale))
{
cause = RetryCauses.ProxyAuthenticate;
}
}
}
goto default;
}
#endif
// Redirected
case 301: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.2
case 302: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.3
case 307: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.8
case 308: // http://tools.ietf.org/html/rfc7238
{
if (CurrentRequest.RedirectCount >= CurrentRequest.MaxRedirects)
{
goto default;
}
CurrentRequest.RedirectCount++;
string location = CurrentRequest.Response.GetFirstHeaderValue("location");
if (!string.IsNullOrEmpty(location))
{
Uri redirectUri = GetRedirectUri(location);
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("{0} - Redirected to Location: '{1}' redirectUri: '{1}'", this.CurrentRequest.CurrentUri.ToString(), location, redirectUri));
}
// Let the user to take some control over the redirection
if (!CurrentRequest.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", "OnBeforeRedirection returned False");
goto default;
}
// Remove the previously set Host header.
CurrentRequest.RemoveHeader("Host");
// Set the Referer header to the last Uri.
CurrentRequest.SetHeader("Referer", CurrentRequest.CurrentUri.ToString());
// Set the new Uri, the CurrentUri will return this while the IsRedirected property is true
CurrentRequest.RedirectUri = redirectUri;
// Discard the redirect response, we don't need it any more
CurrentRequest.Response = null;
redirected = CurrentRequest.IsRedirected = true;
}
else
#if !NETFX_CORE
{ throw new MissingFieldException(string.Format("Got redirect status({0}) without 'location' header!", CurrentRequest.Response.StatusCode.ToString())); }
#else
{ throw new Exception(string.Format("Got redirect status({0}) without 'location' header!", CurrentRequest.Response.StatusCode.ToString())); }
#endif
goto default;
}
default:
#if !BESTHTTP_DISABLE_CACHING && (!UNITY_WEBGL || UNITY_EDITOR)
TryStoreInCache();
#endif
break;
}
// If we have a response and the server telling us that it closed the connection after the message sent to us, then
// we will close the connection too.
bool closeByServer = CurrentRequest.Response == null || CurrentRequest.Response.HasHeaderWithValue("connection", "close");
bool closeByClient = !CurrentRequest.Response.IsClosedManually && !CurrentRequest.IsKeepAlive;
if (closeByServer || closeByClient)
{
Close();
}
else if (CurrentRequest.Response != null)
{
var keepAliveheaderValues = CurrentRequest.Response.GetHeaderValues("keep-alive");
if (keepAliveheaderValues != null && keepAliveheaderValues.Count > 0)
{
if (KeepAlive == null)
{
KeepAlive = new KeepAliveHeader();
}
KeepAlive.Parse(keepAliveheaderValues);
}
}
}
}
} while (cause != RetryCauses.None);
}
catch (TimeoutException e)
{
CurrentRequest.Response = null;
CurrentRequest.Exception = e;
CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
Close();
}
catch (Exception e)
{
if (CurrentRequest != null)
{
#if !BESTHTTP_DISABLE_CACHING && (!UNITY_WEBGL || UNITY_EDITOR)
if (CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(CurrentRequest.CurrentUri);
}
#endif
// Something gone bad, Response must be null!
CurrentRequest.Response = null;
switch (State)
{
case HTTPConnectionStates.Closed:
case HTTPConnectionStates.AbortRequested:
CurrentRequest.State = HTTPRequestStates.Aborted;
break;
case HTTPConnectionStates.TimedOut:
CurrentRequest.State = HTTPRequestStates.TimedOut;
break;
default:
CurrentRequest.Exception = e;
CurrentRequest.State = HTTPRequestStates.Error;
break;
}
}
Close();
}
finally
{
if (CurrentRequest != null)
{
// Avoid state changes. While we are in this block changing the connection's State, on Unity's main thread
// the HTTPManager's OnUpdate will check the connections's State and call functions that can change the inner state of
// the object. (Like setting the CurrentRequest to null in function Recycle() causing a NullRef exception)
lock (HTTPManager.Locker)
{
if (CurrentRequest != null && CurrentRequest.Response != null && CurrentRequest.Response.IsUpgraded)
{
State = HTTPConnectionStates.Upgraded;
}
else
{
State = redirected ? HTTPConnectionStates.Redirected : (Client == null ? HTTPConnectionStates.Closed : HTTPConnectionStates.WaitForRecycle);
}
// Change the request's state only when the whole processing finished
if (CurrentRequest.State == HTTPRequestStates.Processing && (State == HTTPConnectionStates.Closed || State == HTTPConnectionStates.WaitForRecycle))
{
if (CurrentRequest.Response != null)
{
CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
CurrentRequest.Exception = new Exception(string.Format("Remote server closed the connection before sending response header! Previous request state: {0}. Connection state: {1}",
CurrentRequest.State.ToString(),
State.ToString()));
CurrentRequest.State = HTTPRequestStates.Error;
}
}
if (CurrentRequest.State == HTTPRequestStates.ConnectionTimedOut)
{
State = HTTPConnectionStates.Closed;
}
LastProcessTime = DateTime.UtcNow;
if (OnConnectionRecycled != null)
{
RecycleNow();
}
}
#if !BESTHTTP_DISABLE_CACHING && (!UNITY_WEBGL || UNITY_EDITOR)
HTTPCacheService.SaveLibrary();
#endif
#if !BESTHTTP_DISABLE_COOKIES && (!UNITY_WEBGL || UNITY_EDITOR)
CookieJar.Persist();
#endif
}
}
}
private void ThreadFunc(object param)
{
bool flag = false;
bool flag2 = false;
RetryCauses retryCauses = RetryCauses.None;
object obj = null;
try
{
if (!CurrentRequest.DisableCache)
{
Monitor.Enter(obj = HTTPCacheFileLock.Acquire(CurrentRequest.CurrentUri));
}
CurrentRequest.Processing = true;
if (!TryLoadAllFromCache())
{
if (Client != null && !Client.IsConnected())
{
Close();
}
do
{
if (retryCauses == RetryCauses.Reconnect)
{
Close();
Thread.Sleep(100);
}
retryCauses = RetryCauses.None;
Connect();
if (!CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(CurrentRequest);
}
bool flag3 = CurrentRequest.SendOutTo(Stream);
if (!flag3)
{
Close();
if (!flag)
{
flag = true;
retryCauses = RetryCauses.Reconnect;
}
}
if (flag3)
{
if (!Receive() && !flag)
{
flag = true;
retryCauses = RetryCauses.Reconnect;
}
if (CurrentRequest.Response != null)
{
switch (CurrentRequest.Response.StatusCode)
{
case 401:
{
string firstHeaderValue2 = CurrentRequest.Response.GetFirstHeaderValue("www-authenticate");
if (!string.IsNullOrEmpty(firstHeaderValue2))
{
Digest orCreate = DigestStore.GetOrCreate(CurrentRequest.CurrentUri);
orCreate.ParseChallange(firstHeaderValue2);
if (CurrentRequest.Credentials != null && orCreate.IsUriProtected(CurrentRequest.CurrentUri) && (!CurrentRequest.HasHeader("Authorization") || orCreate.Stale))
{
retryCauses = RetryCauses.Authenticate;
}
}
break;
}
case 301:
case 302:
case 307:
if (CurrentRequest.RedirectCount < CurrentRequest.MaxRedirects)
{
CurrentRequest.RedirectCount++;
string firstHeaderValue = CurrentRequest.Response.GetFirstHeaderValue("location");
if (string.IsNullOrEmpty(firstHeaderValue))
{
throw new MissingFieldException($"Got redirect status({CurrentRequest.Response.StatusCode.ToString()}) without 'location' header!");
}
CurrentRequest.RedirectUri = GetRedirectUri(firstHeaderValue);
CurrentRequest.Response = null;
bool flag4 = true;
CurrentRequest.IsRedirected = flag4;
flag2 = flag4;
}
break;
}
TryStoreInCache();
if (CurrentRequest.Response.HasHeaderWithValue("connection", "close") || CurrentRequest.UseAlternateSSL)
{
Close();
}
}
}
}while (retryCauses != 0);
}
}
catch (Exception exception)
{
if (CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(CurrentRequest.CurrentUri);
}
CurrentRequest.Response = null;
CurrentRequest.Exception = exception;
Close();
}
finally
{
if (!CurrentRequest.DisableCache && obj != null)
{
Monitor.Exit(obj);
}
HTTPCacheService.SaveLibrary();
CurrentRequest.Processing = false;
if (CurrentRequest != null && CurrentRequest.Response != null && CurrentRequest.Response.IsUpgraded)
{
State = HTTPConnectionStates.Upgraded;
}
else
{
State = (flag2 ? HTTPConnectionStates.Redirected : ((Client != null) ? HTTPConnectionStates.WaitForRecycle : HTTPConnectionStates.Closed));
}
LastProcessTime = DateTime.UtcNow;
}
}
public static void HandleResponse(string context, HTTPRequest request, out bool resendRequest, out HTTPConnectionStates proposedConnectionState, ref KeepAliveHeader keepAlive)
{
resendRequest = false;
proposedConnectionState = HTTPConnectionStates.Processing;
if (request.Response != null)
{
#if !BESTHTTP_DISABLE_COOKIES
// Try to store cookies before we do anything else, as we may remove the response deleting the cookies as well.
if (request.IsCookiesEnabled && CookieJar.Set(request.Response))
{
PluginEventHelper.EnqueuePluginEvent(new PluginEventInfo(PluginEvents.SaveCookieLibrary));
}
#endif
switch (request.Response.StatusCode)
{
// Not authorized
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.2
case 401:
{
string authHeader = DigestStore.FindBest(request.Response.GetHeaderValues("www-authenticate"));
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(request.CurrentUri);
digest.ParseChallange(authHeader);
if (request.Credentials != null && digest.IsUriProtected(request.CurrentUri) && (!request.HasHeader("Authorization") || digest.Stale))
{
resendRequest = true;
}
}
goto default;
}
// Redirected
case 301: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.2
case 302: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.3
case 307: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.8
case 308: // http://tools.ietf.org/html/rfc7238
{
if (request.RedirectCount >= request.MaxRedirects)
{
goto default;
}
request.RedirectCount++;
string location = request.Response.GetFirstHeaderValue("location");
if (!string.IsNullOrEmpty(location))
{
Uri redirectUri = ConnectionHelper.GetRedirectUri(request, location);
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("[{0}] - Redirected to Location: '{1}' redirectUri: '{1}'", context, location, redirectUri));
}
// Let the user to take some control over the redirection
if (!request.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", string.Format("[{0}] OnBeforeRedirection returned False", context));
goto default;
}
// Remove the previously set Host header.
request.RemoveHeader("Host");
// Set the Referer header to the last Uri.
request.SetHeader("Referer", request.CurrentUri.ToString());
// Set the new Uri, the CurrentUri will return this while the IsRedirected property is true
request.RedirectUri = redirectUri;
// Discard the redirect response, we don't need it any more
request.Response = null;
request.IsRedirected = true;
resendRequest = true;
}
else
{
throw new Exception(string.Format("[{0}] Got redirect status({1}) without 'location' header!", context, request.Response.StatusCode.ToString()));
}
goto default;
}
#if !BESTHTTP_DISABLE_CACHING
case 304:
if (request.DisableCache)
{
break;
}
if (ConnectionHelper.LoadFromCache(context, request))
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("[{0}] - HandleResponse - Loaded from cache successfully!", context));
}
else
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("[{0}] - HandleResponse - Loaded from cache failed!", context));
resendRequest = true;
}
break;
#endif
default:
#if !BESTHTTP_DISABLE_CACHING
ConnectionHelper.TryStoreInCache(request);
#endif
break;
}
// Closing the stream is done manually?
if (!request.Response.IsClosedManually)
{
// If we have a response and the server telling us that it closed the connection after the message sent to us, then
// we will close the connection too.
bool closeByServer = request.Response.HasHeaderWithValue("connection", "close");
bool closeByClient = !request.IsKeepAlive;
if (closeByServer || closeByClient)
{
proposedConnectionState = HTTPConnectionStates.Closed;
}
else if (request.Response != null)
{
var keepAliveheaderValues = request.Response.GetHeaderValues("keep-alive");
if (keepAliveheaderValues != null && keepAliveheaderValues.Count > 0)
{
if (keepAlive == null)
{
keepAlive = new KeepAliveHeader();
}
keepAlive.Parse(keepAliveheaderValues);
}
}
}
}
}
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 SendHeaders(BinaryWriter stream)
{
SetHeader("Host", CurrentUri.Host);
if (IsRedirected && !HasHeader("Referer"))
{
AddHeader("Referer", Uri.ToString());
}
if (!HasHeader("Accept-Encoding"))
{
AddHeader("Accept-Encoding", "gzip, deflate, identity");
}
if (!HasHeader("Connection"))
{
AddHeader("Connection", (!IsKeepAlive) ? "Close, TE" : "Keep-Alive, TE");
}
if (!HasHeader("TE"))
{
AddHeader("TE", "chunked, identity");
}
byte[] entityBody = GetEntityBody();
int num = (entityBody != null) ? entityBody.Length : 0;
if (RawData == null)
{
byte[] array = ((object)FieldsImpl == null) ? null : FieldsImpl.get_data();
if (array != null && array.Length > 0 && !HasHeader("Content-Type"))
{
AddHeader("Content-Type", "application/x-www-form-urlencoded");
}
}
if (!HasHeader("Content-Length") && num != 0)
{
AddHeader("Content-Length", num.ToString());
}
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 digest = DigestStore.Get(CurrentUri);
if (digest != null)
{
string value = digest.GenerateResponseHeader(this);
if (!string.IsNullOrEmpty(value))
{
SetHeader("Authorization", value);
}
}
break;
}
}
}
foreach (KeyValuePair<string, List<string>> header in Headers)
{
byte[] aSCIIBytes = (header.Key + ": ").GetASCIIBytes();
for (int i = 0; i < header.Value.Count; i++)
{
stream.Write(aSCIIBytes);
stream.Write(header.Value[i].GetASCIIBytes());
stream.Write(EOL);
}
}
}
private void SendHeaders(BinaryWriter stream)
{
if (!this.HasHeader("Host"))
{
this.SetHeader("Host", this.CurrentUri.Authority);
}
if (this.IsRedirected && !this.HasHeader("Referer"))
{
this.AddHeader("Referer", this.Uri.ToString());
}
if (!this.HasHeader("Accept-Encoding"))
{
this.AddHeader("Accept-Encoding", "gzip, identity");
}
if (this.HasProxy && !this.HasHeader("Proxy-Connection"))
{
this.AddHeader("Proxy-Connection", (!this.IsKeepAlive) ? "Close" : "Keep-Alive");
}
if (!this.HasHeader("Connection"))
{
this.AddHeader("Connection", (!this.IsKeepAlive) ? "Close, TE" : "Keep-Alive, TE");
}
if (!this.HasHeader("TE"))
{
this.AddHeader("TE", "identity");
}
if (!this.HasHeader("User-Agent"))
{
this.AddHeader("User-Agent", "BestHTTP");
}
long num;
if (this.UploadStream == null)
{
byte[] entityBody = this.GetEntityBody();
num = (long)((entityBody == null) ? 0 : entityBody.Length);
if (this.RawData == null && (this.FormImpl != null || (this.FieldCollector != null && !this.FieldCollector.IsEmpty)))
{
this.SelectFormImplementation();
if (this.FormImpl != null)
{
this.FormImpl.PrepareRequest(this);
}
}
}
else
{
num = this.UploadStreamLength;
if (num == -1L)
{
this.SetHeader("Transfer-Encoding", "Chunked");
}
if (!this.HasHeader("Content-Type"))
{
this.SetHeader("Content-Type", "application/octet-stream");
}
}
if (num != -1L && !this.HasHeader("Content-Length"))
{
this.SetHeader("Content-Length", num.ToString());
}
if (this.HasProxy && this.Proxy.Credentials != null)
{
switch (this.Proxy.Credentials.Type)
{
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
{
Digest digest = DigestStore.Get(this.Proxy.Address);
if (digest != null)
{
string value = digest.GenerateResponseHeader(this, this.Proxy.Credentials);
if (!string.IsNullOrEmpty(value))
{
this.SetHeader("Proxy-Authorization", value);
}
}
break;
}
case AuthenticationTypes.Basic:
this.SetHeader("Proxy-Authorization", "Basic " + Convert.ToBase64String(Encoding.UTF8.GetBytes(this.Credentials.UserName + ":" + this.Credentials.Password)));
break;
}
}
if (this.Credentials != null)
{
switch (this.Credentials.Type)
{
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
{
Digest digest2 = DigestStore.Get(this.CurrentUri);
if (digest2 != null)
{
string value2 = digest2.GenerateResponseHeader(this, this.Credentials);
if (!string.IsNullOrEmpty(value2))
{
this.SetHeader("Authorization", value2);
}
}
break;
}
case AuthenticationTypes.Basic:
this.SetHeader("Authorization", "Basic " + Convert.ToBase64String(Encoding.UTF8.GetBytes(this.Credentials.UserName + ":" + this.Credentials.Password)));
break;
}
}
List <Cookie> list = (!this.IsCookiesEnabled) ? null : CookieJar.Get(this.CurrentUri);
if (list == null)
{
list = this.customCookies;
}
else if (this.customCookies != null)
{
list.AddRange(this.customCookies);
}
if (list != null && list.Count > 0)
{
bool flag = true;
string text = string.Empty;
bool flag2 = HTTPProtocolFactory.IsSecureProtocol(this.CurrentUri);
SupportedProtocols protocolFromUri = HTTPProtocolFactory.GetProtocolFromUri(this.CurrentUri);
foreach (Cookie current in list)
{
if ((!current.IsSecure || (current.IsSecure && flag2)) && (!current.IsHttpOnly || (current.IsHttpOnly && protocolFromUri == SupportedProtocols.HTTP)))
{
if (!flag)
{
text += "; ";
}
else
{
flag = false;
}
text += current.ToString();
current.LastAccess = DateTime.UtcNow;
}
}
this.SetHeader("Cookie", text);
}
foreach (KeyValuePair <string, List <string> > current2 in this.Headers)
{
byte[] aSCIIBytes = (current2.Key + ": ").GetASCIIBytes();
for (int i = 0; i < current2.Value.Count; i++)
{
stream.Write(aSCIIBytes);
stream.Write(current2.Value[i].GetASCIIBytes());
stream.Write(HTTPRequest.EOL);
}
}
}
private void ThreadFunc(object param)
{
bool flag = false;
bool flag2 = false;
HTTPConnection.RetryCauses retryCauses = HTTPConnection.RetryCauses.None;
try
{
if (!this.HasProxy && this.CurrentRequest.HasProxy)
{
this.Proxy = this.CurrentRequest.Proxy;
}
if (!this.TryLoadAllFromCache())
{
if (this.Client != null && !this.Client.IsConnected())
{
this.Close();
}
while (true)
{
if (retryCauses == HTTPConnection.RetryCauses.Reconnect)
{
this.Close();
Thread.Sleep(100);
}
this.LastProcessedUri = this.CurrentRequest.CurrentUri;
retryCauses = HTTPConnection.RetryCauses.None;
this.Connect();
if (this.State == HTTPConnectionStates.AbortRequested)
{
break;
}
if (!this.CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(this.CurrentRequest);
}
bool flag3 = this.CurrentRequest.SendOutTo(this.Stream);
if (!flag3)
{
this.Close();
if (this.State == HTTPConnectionStates.TimedOut)
{
goto Block_13;
}
if (!flag)
{
flag = true;
retryCauses = HTTPConnection.RetryCauses.Reconnect;
}
}
if (flag3)
{
bool flag4 = this.Receive();
if (this.State == HTTPConnectionStates.TimedOut)
{
goto Block_16;
}
if (!flag4 && !flag)
{
flag = true;
retryCauses = HTTPConnection.RetryCauses.Reconnect;
}
if (this.CurrentRequest.Response != null)
{
int statusCode = this.CurrentRequest.Response.StatusCode;
switch (statusCode)
{
case 301:
case 302:
case 307:
case 308:
{
if (this.CurrentRequest.RedirectCount >= this.CurrentRequest.MaxRedirects)
{
goto IL_3F7;
}
this.CurrentRequest.RedirectCount++;
string firstHeaderValue = this.CurrentRequest.Response.GetFirstHeaderValue("location");
if (string.IsNullOrEmpty(firstHeaderValue))
{
goto IL_3C9;
}
Uri redirectUri = this.GetRedirectUri(firstHeaderValue);
if (!this.CurrentRequest.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", "OnBeforeRedirection returned False");
goto IL_3F7;
}
this.CurrentRequest.RemoveHeader("Host");
this.CurrentRequest.SetHeader("Referer", this.CurrentRequest.CurrentUri.ToString());
this.CurrentRequest.RedirectUri = redirectUri;
this.CurrentRequest.Response = null;
bool flag5 = true;
this.CurrentRequest.IsRedirected = flag5;
flag2 = flag5;
goto IL_3F7;
}
case 303:
case 304:
case 305:
case 306:
IL_186:
if (statusCode == 401)
{
string firstHeaderValue2 = this.CurrentRequest.Response.GetFirstHeaderValue("www-authenticate");
if (!string.IsNullOrEmpty(firstHeaderValue2))
{
Digest orCreate = DigestStore.GetOrCreate(this.CurrentRequest.CurrentUri);
orCreate.ParseChallange(firstHeaderValue2);
if (this.CurrentRequest.Credentials != null && orCreate.IsUriProtected(this.CurrentRequest.CurrentUri) && (!this.CurrentRequest.HasHeader("Authorization") || orCreate.Stale))
{
retryCauses = HTTPConnection.RetryCauses.Authenticate;
}
}
goto IL_3F7;
}
if (statusCode != 407)
{
goto IL_3F7;
}
if (this.CurrentRequest.HasProxy)
{
string firstHeaderValue3 = this.CurrentRequest.Response.GetFirstHeaderValue("proxy-authenticate");
if (!string.IsNullOrEmpty(firstHeaderValue3))
{
Digest orCreate2 = DigestStore.GetOrCreate(this.CurrentRequest.Proxy.Address);
orCreate2.ParseChallange(firstHeaderValue3);
if (this.CurrentRequest.Proxy.Credentials != null && orCreate2.IsUriProtected(this.CurrentRequest.Proxy.Address) && (!this.CurrentRequest.HasHeader("Proxy-Authorization") || orCreate2.Stale))
{
retryCauses = HTTPConnection.RetryCauses.ProxyAuthenticate;
}
}
}
goto IL_3F7;
}
goto IL_186;
IL_3F7:
if (this.CurrentRequest.IsCookiesEnabled)
{
CookieJar.Set(this.CurrentRequest.Response);
}
this.TryStoreInCache();
if (this.CurrentRequest.Response == null || this.CurrentRequest.Response.HasHeaderWithValue("connection", "close") || this.CurrentRequest.UseAlternateSSL)
{
this.Close();
}
}
}
if (retryCauses == HTTPConnection.RetryCauses.None)
{
goto Block_37;
}
}
throw new Exception("AbortRequested");
Block_13:
throw new Exception("AbortRequested");
Block_16:
throw new Exception("AbortRequested");
IL_3C9:
throw new MissingFieldException(string.Format("Got redirect status({0}) without 'location' header!", this.CurrentRequest.Response.StatusCode.ToString()));
Block_37 :;
}
}
catch (TimeoutException exception)
{
this.CurrentRequest.Response = null;
this.CurrentRequest.Exception = exception;
this.CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
this.Close();
}
catch (Exception exception2)
{
if (this.CurrentRequest != null)
{
if (this.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(this.CurrentRequest.CurrentUri, true);
}
this.CurrentRequest.Response = null;
HTTPConnectionStates state = this.State;
if (state != HTTPConnectionStates.AbortRequested)
{
if (state != HTTPConnectionStates.TimedOut)
{
this.CurrentRequest.Exception = exception2;
this.CurrentRequest.State = HTTPRequestStates.Error;
}
else
{
this.CurrentRequest.State = HTTPRequestStates.TimedOut;
}
}
else
{
this.CurrentRequest.State = HTTPRequestStates.Aborted;
}
}
this.Close();
}
finally
{
if (this.CurrentRequest != null)
{
object locker = HTTPManager.Locker;
lock (locker)
{
if (this.CurrentRequest != null && this.CurrentRequest.Response != null && this.CurrentRequest.Response.IsUpgraded)
{
this.State = HTTPConnectionStates.Upgraded;
}
else
{
this.State = ((!flag2) ? ((this.Client != null) ? HTTPConnectionStates.WaitForRecycle : HTTPConnectionStates.Closed) : HTTPConnectionStates.Redirected);
}
if (this.CurrentRequest.State == HTTPRequestStates.Processing && (this.State == HTTPConnectionStates.Closed || this.State == HTTPConnectionStates.WaitForRecycle))
{
this.CurrentRequest.State = HTTPRequestStates.Finished;
}
if (this.CurrentRequest.State == HTTPRequestStates.ConnectionTimedOut)
{
this.State = HTTPConnectionStates.Closed;
}
this.LastProcessTime = DateTime.UtcNow;
}
HTTPCacheService.SaveLibrary();
CookieJar.Persist();
}
}
}
/// <summary>
/// Writes out the Headers to the stream.
/// </summary>
/// <param name="stream"></param>
private void SendHeaders(BinaryWriter stream)
{
if (!HasHeader("Host"))
{
SetHeader("Host", CurrentUri.Host);
}
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 ? "Keep-Alive" : "Close");
}
if (!HasHeader("Connection"))
{
AddHeader("Connection", IsKeepAlive ? "Keep-Alive, TE" : "Close, TE");
}
if (!HasHeader("TE"))
{
AddHeader("TE", "identity");
}
if (!HasHeader("User-Agent"))
{
AddHeader("User-Agent", "BestHTTP");
}
byte[] entityBody = GetEntityBody();
int contentLength = entityBody != null ? entityBody.Length : 0;
if (RawData == null && (FormImpl != null || (FieldCollector != null && !FieldCollector.IsEmpty)))
{
SelectFormImplementation();
if (FormImpl != null)
{
FormImpl.PrepareRequest(this);
}
}
if (!HasHeader("Content-Length") && contentLength != 0)
{
AddHeader("Content-Length", contentLength.ToString());
}
// Proxy Authentication
if (HasProxy && Proxy.Credentials != null)
{
switch (Proxy.Credentials.Type)
{
case AuthenticationTypes.Basic:
// With Basic authentication we don't want to wait for a challange, we will send the hash with the first request
SetHeader("Proxy-Authorization", string.Concat("Basic ", Convert.ToBase64String(Encoding.UTF8.GetBytes(Credentials.UserName + ":" + Credentials.Password))));
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
var digest = DigestStore.Get(Proxy.Address);
if (digest != null)
{
string authentication = digest.GenerateResponseHeader(this, Proxy.Credentials);
if (!string.IsNullOrEmpty(authentication))
{
SetHeader("Proxy-Authorization", authentication);
}
}
break;
}
}
// Server authentication
if (Credentials != null)
{
switch (Credentials.Type)
{
case AuthenticationTypes.Basic:
// With Basic authentication we don't want to wait for a challange, we will send the hash with the first request
SetHeader("Authorization", string.Concat("Basic ", Convert.ToBase64String(Encoding.UTF8.GetBytes(Credentials.UserName + ":" + Credentials.Password))));
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
var digest = DigestStore.Get(this.CurrentUri);
if (digest != null)
{
string authentication = digest.GenerateResponseHeader(this, Credentials);
if (!string.IsNullOrEmpty(authentication))
{
SetHeader("Authorization", authentication);
}
}
break;
}
}
// Cookies
if (IsCookiesEnabled)
{
var cookies = CookieJar.Get(CurrentUri);
// http://tools.ietf.org/html/rfc6265#section-5.4
// -When the user agent generates an HTTP request, the user agent MUST NOT attach more than one Cookie header field.
if (cookies != null && cookies.Count > 0)
{
// TODO:
// 2. The user agent SHOULD sort the cookie-list in the following order:
// * Cookies with longer paths are listed before cookies with shorter paths.
// * Among cookies that have equal-length path fields, cookies with earlier creation-times are listed before cookies with later creation-times.
bool first = true;
string cookieStr = string.Empty;
foreach (var cookie in cookies)
{
if ((!cookie.IsSecure || (cookie.IsSecure && HTTPProtocolFactory.IsSecureProtocol(CurrentUri))) &&
(!cookie.IsHttpOnly || (cookie.IsHttpOnly && HTTPProtocolFactory.GetProtocolFromUri(CurrentUri) == SupportedProtocols.HTTP)))
{
if (!first)
{
cookieStr += "; ";
}
else
{
first = false;
}
cookieStr += cookie.ToString();
// 3. Update the last-access-time of each cookie in the cookie-list to the current date and time.
cookie.LastAccess = DateTime.UtcNow;
}
}
SetHeader("Cookie", cookieStr);
}
}
// Write out the headers to the stream
foreach (var kvp in Headers)
{
byte[] headerName = string.Concat(kvp.Key, ": ").GetASCIIBytes();
for (int i = 0; i < kvp.Value.Count; ++i)
{
stream.Write(headerName);
stream.Write(kvp.Value[i].GetASCIIBytes());
stream.Write(EOL);
}
}
}
private void Connect()
{
Uri uri = !base.CurrentRequest.HasProxy ? base.CurrentRequest.CurrentUri : base.CurrentRequest.Proxy.Address;
if (this.Client == null)
{
this.Client = new TcpClient();
}
if (!this.Client.Connected)
{
this.Client.ConnectTimeout = base.CurrentRequest.ConnectTimeout;
if (HTTPManager.Logger.Level == Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTPConnection", $"'{base.CurrentRequest.CurrentUri.ToString()}' - Connecting to {uri.Host}:{uri.Port.ToString()}");
}
this.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());
}
base.StartTime = DateTime.UtcNow;
if (this.Stream == null)
{
bool flag = HTTPProtocolFactory.IsSecureProtocol(base.CurrentRequest.CurrentUri);
this.Stream = this.Client.GetStream();
if (base.HasProxy && (!base.Proxy.IsTransparent || (flag && base.Proxy.NonTransparentForHTTPS)))
{
bool flag2;
BinaryWriter stream = new BinaryWriter(this.Stream);
do
{
flag2 = false;
string str = $"CONNECT {base.CurrentRequest.CurrentUri.Host}:{base.CurrentRequest.CurrentUri.Port} HTTP/1.1";
HTTPManager.Logger.Information("HTTPConnection", "Sending " + str);
stream.SendAsASCII(str);
stream.Write(HTTPRequest.EOL);
stream.SendAsASCII("Proxy-Connection: Keep-Alive");
stream.Write(HTTPRequest.EOL);
stream.SendAsASCII("Connection: Keep-Alive");
stream.Write(HTTPRequest.EOL);
stream.SendAsASCII($"Host: {base.CurrentRequest.CurrentUri.Host}:{base.CurrentRequest.CurrentUri.Port}");
stream.Write(HTTPRequest.EOL);
if (base.HasProxy && (base.Proxy.Credentials != null))
{
switch (base.Proxy.Credentials.Type)
{
case AuthenticationTypes.Basic:
stream.Write($"Proxy-Authorization: {("Basic " + Convert.ToBase64String(Encoding.UTF8.GetBytes(base.Proxy.Credentials.UserName + ":" + base.Proxy.Credentials.Password)))}".GetASCIIBytes());
stream.Write(HTTPRequest.EOL);
break;
case AuthenticationTypes.Unknown:
case AuthenticationTypes.Digest:
{
Digest digest = DigestStore.Get(base.Proxy.Address);
if (digest != null)
{
string str2 = digest.GenerateResponseHeader(base.CurrentRequest, base.Proxy.Credentials);
if (!string.IsNullOrEmpty(str2))
{
stream.Write($"Proxy-Authorization: {str2}".GetASCIIBytes());
stream.Write(HTTPRequest.EOL);
}
}
break;
}
}
}
stream.Write(HTTPRequest.EOL);
stream.Flush();
base.CurrentRequest.ProxyResponse = new HTTPResponse(base.CurrentRequest, this.Stream, false, false);
if (!base.CurrentRequest.ProxyResponse.Receive(-1, true))
{
throw new Exception("Connection to the Proxy Server failed!");
}
if (HTTPManager.Logger.Level <= Loglevels.Information)
{
object[] objArray1 = new object[] { "Proxy returned - status code: ", base.CurrentRequest.ProxyResponse.StatusCode, " message: ", base.CurrentRequest.ProxyResponse.Message };
HTTPManager.Logger.Information("HTTPConnection", string.Concat(objArray1));
}
if (base.CurrentRequest.ProxyResponse.StatusCode == 0x197)
{
string str3 = DigestStore.FindBest(base.CurrentRequest.ProxyResponse.GetHeaderValues("proxy-authenticate"));
if (!string.IsNullOrEmpty(str3))
{
Digest orCreate = DigestStore.GetOrCreate(base.Proxy.Address);
orCreate.ParseChallange(str3);
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 protocol = new TlsClientProtocol(this.Client.GetStream(), new SecureRandom());
List <string> hostNames = new List <string>(1)
{
base.CurrentRequest.CurrentUri.Host
};
protocol.Connect(new LegacyTlsClient(base.CurrentRequest.CurrentUri, (base.CurrentRequest.CustomCertificateVerifyer != null) ? base.CurrentRequest.CustomCertificateVerifyer : new AlwaysValidVerifyer(), base.CurrentRequest.CustomClientCredentialsProvider, hostNames));
this.Stream = protocol.Stream;
}
else
{
SslStream stream = new SslStream(this.Client.GetStream(), false, (sender, cert, chain, errors) => base.CurrentRequest.CallCustomCertificationValidator(cert, chain));
if (!stream.IsAuthenticated)
{
stream.AuthenticateAsClient(base.CurrentRequest.CurrentUri.Host);
}
this.Stream = stream;
}
}
}
}
protected override void ThreadFunc(object param)
{
bool flag = false;
bool flag2 = false;
RetryCauses none = RetryCauses.None;
try
{
if (!base.HasProxy && base.CurrentRequest.HasProxy)
{
base.Proxy = base.CurrentRequest.Proxy;
}
if (!this.TryLoadAllFromCache())
{
if ((this.Client != null) && !this.Client.IsConnected())
{
this.Close();
}
do
{
if (none == RetryCauses.Reconnect)
{
this.Close();
Thread.Sleep(100);
}
base.LastProcessedUri = base.CurrentRequest.CurrentUri;
none = RetryCauses.None;
this.Connect();
if (base.State == HTTPConnectionStates.AbortRequested)
{
throw new Exception("AbortRequested");
}
if (!base.CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(base.CurrentRequest);
}
bool flag3 = false;
try
{
this.Client.NoDelay = base.CurrentRequest.TryToMinimizeTCPLatency;
base.CurrentRequest.SendOutTo(this.Stream);
flag3 = true;
}
catch (Exception exception)
{
this.Close();
if ((base.State == HTTPConnectionStates.TimedOut) || (base.State == HTTPConnectionStates.AbortRequested))
{
throw new Exception("AbortRequested");
}
if (flag || base.CurrentRequest.DisableRetry)
{
throw exception;
}
flag = true;
none = RetryCauses.Reconnect;
}
if (flag3)
{
bool flag4 = this.Receive();
if ((base.State == HTTPConnectionStates.TimedOut) || (base.State == HTTPConnectionStates.AbortRequested))
{
throw new Exception("AbortRequested");
}
if ((!flag4 && !flag) && !base.CurrentRequest.DisableRetry)
{
flag = true;
none = RetryCauses.Reconnect;
}
if (base.CurrentRequest.Response != null)
{
if (base.CurrentRequest.IsCookiesEnabled)
{
CookieJar.Set(base.CurrentRequest.Response);
}
switch (base.CurrentRequest.Response.StatusCode)
{
case 0x12d:
case 0x12e:
case 0x133:
case 0x134:
if (base.CurrentRequest.RedirectCount < base.CurrentRequest.MaxRedirects)
{
HTTPRequest currentRequest = base.CurrentRequest;
currentRequest.RedirectCount++;
string firstHeaderValue = base.CurrentRequest.Response.GetFirstHeaderValue("location");
if (string.IsNullOrEmpty(firstHeaderValue))
{
throw new MissingFieldException($"Got redirect status({base.CurrentRequest.Response.StatusCode.ToString()}) without 'location' header!");
}
Uri redirectUri = this.GetRedirectUri(firstHeaderValue);
if (HTTPManager.Logger.Level == Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("{0} - Redirected to Location: '{1}' redirectUri: '{1}'", base.CurrentRequest.CurrentUri.ToString(), firstHeaderValue, redirectUri));
}
if (!base.CurrentRequest.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", "OnBeforeRedirection returned False");
}
else
{
base.CurrentRequest.RemoveHeader("Host");
base.CurrentRequest.SetHeader("Referer", base.CurrentRequest.CurrentUri.ToString());
base.CurrentRequest.RedirectUri = redirectUri;
base.CurrentRequest.Response = null;
bool flag5 = true;
base.CurrentRequest.IsRedirected = flag5;
flag2 = flag5;
}
}
break;
case 0x191:
{
string str = DigestStore.FindBest(base.CurrentRequest.Response.GetHeaderValues("www-authenticate"));
if (!string.IsNullOrEmpty(str))
{
Digest orCreate = DigestStore.GetOrCreate(base.CurrentRequest.CurrentUri);
orCreate.ParseChallange(str);
if (((base.CurrentRequest.Credentials != null) && orCreate.IsUriProtected(base.CurrentRequest.CurrentUri)) && (!base.CurrentRequest.HasHeader("Authorization") || orCreate.Stale))
{
none = RetryCauses.Authenticate;
}
}
break;
}
case 0x197:
if (base.CurrentRequest.HasProxy)
{
string str2 = DigestStore.FindBest(base.CurrentRequest.Response.GetHeaderValues("proxy-authenticate"));
if (!string.IsNullOrEmpty(str2))
{
Digest orCreate = DigestStore.GetOrCreate(base.CurrentRequest.Proxy.Address);
orCreate.ParseChallange(str2);
if (((base.CurrentRequest.Proxy.Credentials != null) && orCreate.IsUriProtected(base.CurrentRequest.Proxy.Address)) && (!base.CurrentRequest.HasHeader("Proxy-Authorization") || orCreate.Stale))
{
none = RetryCauses.ProxyAuthenticate;
}
}
}
break;
}
this.TryStoreInCache();
if ((base.CurrentRequest.Response == null) || !base.CurrentRequest.Response.IsClosedManually)
{
bool flag6 = (base.CurrentRequest.Response == null) || base.CurrentRequest.Response.HasHeaderWithValue("connection", "close");
bool flag7 = !base.CurrentRequest.IsKeepAlive;
if (flag6 || flag7)
{
this.Close();
}
else if (base.CurrentRequest.Response != null)
{
List <string> headerValues = base.CurrentRequest.Response.GetHeaderValues("keep-alive");
if ((headerValues != null) && (headerValues.Count > 0))
{
if (this.KeepAlive == null)
{
this.KeepAlive = new KeepAliveHeader();
}
this.KeepAlive.Parse(headerValues);
}
}
}
}
}
}while (none != RetryCauses.None);
}
}
catch (TimeoutException exception2)
{
base.CurrentRequest.Response = null;
base.CurrentRequest.Exception = exception2;
base.CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
this.Close();
}
catch (Exception exception3)
{
if (base.CurrentRequest != null)
{
if (base.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(base.CurrentRequest.CurrentUri, true);
}
base.CurrentRequest.Response = null;
switch (base.State)
{
case HTTPConnectionStates.AbortRequested:
case HTTPConnectionStates.Closed:
base.CurrentRequest.State = HTTPRequestStates.Aborted;
goto Label_0685;
case HTTPConnectionStates.TimedOut:
base.CurrentRequest.State = HTTPRequestStates.TimedOut;
goto Label_0685;
}
base.CurrentRequest.Exception = exception3;
base.CurrentRequest.State = HTTPRequestStates.Error;
}
Label_0685:
this.Close();
}
finally
{
if (base.CurrentRequest != null)
{
object locker = HTTPManager.Locker;
lock (locker)
{
if (((base.CurrentRequest != null) && (base.CurrentRequest.Response != null)) && base.CurrentRequest.Response.IsUpgraded)
{
base.State = HTTPConnectionStates.Upgraded;
}
else
{
base.State = !flag2 ? ((this.Client != null) ? HTTPConnectionStates.WaitForRecycle : HTTPConnectionStates.Closed) : HTTPConnectionStates.Redirected;
}
if ((base.CurrentRequest.State == HTTPRequestStates.Processing) && ((base.State == HTTPConnectionStates.Closed) || (base.State == HTTPConnectionStates.WaitForRecycle)))
{
if (base.CurrentRequest.Response != null)
{
base.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
base.CurrentRequest.Exception = new Exception($"Remote server closed the connection before sending response header! Previous request state: {base.CurrentRequest.State.ToString()}. Connection state: {base.State.ToString()}");
base.CurrentRequest.State = HTTPRequestStates.Error;
}
}
if (base.CurrentRequest.State == HTTPRequestStates.ConnectionTimedOut)
{
base.State = HTTPConnectionStates.Closed;
}
base.LastProcessTime = DateTime.UtcNow;
if (base.OnConnectionRecycled != null)
{
base.RecycleNow();
}
}
HTTPCacheService.SaveLibrary();
CookieJar.Persist();
}
}
}
protected override void ThreadFunc(object param)
{
bool flag = false;
bool flag2 = false;
RetryCauses retryCauses = RetryCauses.None;
try
{
if (!base.HasProxy && base.CurrentRequest.HasProxy)
{
base.Proxy = base.CurrentRequest.Proxy;
}
if (!TryLoadAllFromCache())
{
if (Client != null && !Client.IsConnected())
{
Close();
}
while (true)
{
if (retryCauses == RetryCauses.Reconnect)
{
Close();
Thread.Sleep(100);
}
base.LastProcessedUri = base.CurrentRequest.CurrentUri;
retryCauses = RetryCauses.None;
Connect();
if (base.State == HTTPConnectionStates.AbortRequested)
{
throw new Exception("AbortRequested");
}
if (!base.CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(base.CurrentRequest);
}
bool flag3 = false;
try
{
base.CurrentRequest.SendOutTo(Stream);
flag3 = true;
}
catch (Exception ex)
{
Close();
if (base.State == HTTPConnectionStates.TimedOut)
{
throw new Exception("AbortRequested");
}
if (flag || base.CurrentRequest.DisableRetry)
{
throw ex;
}
flag = true;
retryCauses = RetryCauses.Reconnect;
}
if (flag3)
{
bool flag4 = Receive();
if (base.State == HTTPConnectionStates.TimedOut)
{
break;
}
if (!flag4 && !flag && !base.CurrentRequest.DisableRetry)
{
flag = true;
retryCauses = RetryCauses.Reconnect;
}
if (base.CurrentRequest.Response != null)
{
if (base.CurrentRequest.IsCookiesEnabled)
{
CookieJar.Set(base.CurrentRequest.Response);
}
switch (base.CurrentRequest.Response.StatusCode)
{
case 401:
{
string text2 = DigestStore.FindBest(base.CurrentRequest.Response.GetHeaderValues("www-authenticate"));
if (!string.IsNullOrEmpty(text2))
{
Digest orCreate2 = DigestStore.GetOrCreate(base.CurrentRequest.CurrentUri);
orCreate2.ParseChallange(text2);
if (base.CurrentRequest.Credentials != null && orCreate2.IsUriProtected(base.CurrentRequest.CurrentUri) && (!base.CurrentRequest.HasHeader("Authorization") || orCreate2.Stale))
{
retryCauses = RetryCauses.Authenticate;
}
}
break;
}
case 407:
if (base.CurrentRequest.HasProxy)
{
string text = DigestStore.FindBest(base.CurrentRequest.Response.GetHeaderValues("proxy-authenticate"));
if (!string.IsNullOrEmpty(text))
{
Digest orCreate = DigestStore.GetOrCreate(base.CurrentRequest.Proxy.Address);
orCreate.ParseChallange(text);
if (base.CurrentRequest.Proxy.Credentials != null && orCreate.IsUriProtected(base.CurrentRequest.Proxy.Address) && (!base.CurrentRequest.HasHeader("Proxy-Authorization") || orCreate.Stale))
{
retryCauses = RetryCauses.ProxyAuthenticate;
}
}
}
break;
case 301:
case 302:
case 307:
case 308:
if (base.CurrentRequest.RedirectCount < base.CurrentRequest.MaxRedirects)
{
base.CurrentRequest.RedirectCount++;
string firstHeaderValue = base.CurrentRequest.Response.GetFirstHeaderValue("location");
if (string.IsNullOrEmpty(firstHeaderValue))
{
throw new MissingFieldException($"Got redirect status({base.CurrentRequest.Response.StatusCode.ToString()}) without 'location' header!");
}
Uri redirectUri = GetRedirectUri(firstHeaderValue);
if (!base.CurrentRequest.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", "OnBeforeRedirection returned False");
}
else
{
base.CurrentRequest.RemoveHeader("Host");
base.CurrentRequest.SetHeader("Referer", base.CurrentRequest.CurrentUri.ToString());
base.CurrentRequest.RedirectUri = redirectUri;
base.CurrentRequest.Response = null;
bool flag5 = true;
base.CurrentRequest.IsRedirected = flag5;
flag2 = flag5;
}
}
break;
}
TryStoreInCache();
if (base.CurrentRequest.Response == null || (!base.CurrentRequest.Response.IsClosedManually && base.CurrentRequest.Response.HasHeaderWithValue("connection", "close")))
{
Close();
}
}
}
if (retryCauses == RetryCauses.None)
{
return;
}
}
throw new Exception("AbortRequested");
}
}
catch (TimeoutException exception)
{
base.CurrentRequest.Response = null;
base.CurrentRequest.Exception = exception;
base.CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
Close();
}
catch (Exception exception2)
{
if (base.CurrentRequest != null)
{
if (base.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(base.CurrentRequest.CurrentUri);
}
base.CurrentRequest.Response = null;
switch (base.State)
{
case HTTPConnectionStates.AbortRequested:
case HTTPConnectionStates.Closed:
base.CurrentRequest.State = HTTPRequestStates.Aborted;
break;
case HTTPConnectionStates.TimedOut:
base.CurrentRequest.State = HTTPRequestStates.TimedOut;
break;
default:
base.CurrentRequest.Exception = exception2;
base.CurrentRequest.State = HTTPRequestStates.Error;
break;
}
}
Close();
}
finally
{
if (base.CurrentRequest != null)
{
lock (HTTPManager.Locker)
{
if (base.CurrentRequest != null && base.CurrentRequest.Response != null && base.CurrentRequest.Response.IsUpgraded)
{
base.State = HTTPConnectionStates.Upgraded;
}
else
{
base.State = (flag2 ? HTTPConnectionStates.Redirected : ((Client != null) ? HTTPConnectionStates.WaitForRecycle : HTTPConnectionStates.Closed));
}
if (base.CurrentRequest.State == HTTPRequestStates.Processing && (base.State == HTTPConnectionStates.Closed || base.State == HTTPConnectionStates.WaitForRecycle))
{
if (base.CurrentRequest.Response != null)
{
base.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
base.CurrentRequest.State = HTTPRequestStates.Error;
}
}
if (base.CurrentRequest.State == HTTPRequestStates.ConnectionTimedOut)
{
base.State = HTTPConnectionStates.Closed;
}
LastProcessTime = DateTime.UtcNow;
if (OnConnectionRecycled != null)
{
RecycleNow();
}
}
HTTPCacheService.SaveLibrary();
CookieJar.Persist();
}
}
}
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();
}
}
}
