120 lines
4.2 KiB
C++
120 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_net_ASpdySession_h
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#define mozilla_net_ASpdySession_h
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#include "nsAHttpTransaction.h"
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#include "prinrval.h"
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#include "nsHttp.h"
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#include "nsString.h"
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class nsISocketTransport;
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namespace mozilla {
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namespace net {
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class nsHttpConnection;
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class WebTransportSessionBase;
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class ASpdySession : public nsAHttpTransaction {
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public:
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ASpdySession() = default;
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virtual ~ASpdySession() = default;
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[[nodiscard]] virtual bool AddStream(nsAHttpTransaction*, int32_t,
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nsIInterfaceRequestor*) = 0;
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virtual bool CanReuse() = 0;
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virtual bool RoomForMoreStreams() = 0;
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virtual PRIntervalTime IdleTime() = 0;
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virtual uint32_t ReadTimeoutTick(PRIntervalTime now) = 0;
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virtual void DontReuse() = 0;
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virtual enum SpdyVersion SpdyVersion() = 0;
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static ASpdySession* NewSpdySession(net::SpdyVersion version,
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nsISocketTransport*, bool);
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virtual bool TestJoinConnection(const nsACString& hostname, int32_t port) = 0;
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virtual bool JoinConnection(const nsACString& hostname, int32_t port) = 0;
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virtual void PrintDiagnostics(nsCString& log) = 0;
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bool ResponseTimeoutEnabled() const final { return true; }
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virtual void SendPing() = 0;
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const static uint32_t kSendingChunkSize = 16000;
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const static uint32_t kTCPSendBufferSize = 131072;
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const static uint32_t kInitialPushAllowance = 131072; // match default pref
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// This is roughly the amount of data a suspended channel will have to
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// buffer before h2 flow control kicks in.
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const static uint32_t kInitialRwin = 12 * 1024 * 1024; // 12MB
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const static uint32_t kDefaultMaxConcurrent = 100;
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// soft errors are errors that terminate a stream without terminating the
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// connection. In general non-network errors are stream errors as well
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// as network specific items like cancels.
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static bool SoftStreamError(nsresult code) {
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if (NS_SUCCEEDED(code) || code == NS_BASE_STREAM_WOULD_BLOCK) {
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return false;
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}
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// this could go either way, but because there are network instances of
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// it being a hard error we should consider it hard.
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if (code == NS_ERROR_FAILURE || code == NS_ERROR_OUT_OF_MEMORY) {
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return false;
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}
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if (NS_ERROR_GET_MODULE(code) != NS_ERROR_MODULE_NETWORK) {
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return true;
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}
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// these are network specific soft errors
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return (code == NS_BASE_STREAM_CLOSED || code == NS_BINDING_FAILED ||
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code == NS_BINDING_ABORTED || code == NS_BINDING_REDIRECTED ||
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code == NS_ERROR_INVALID_CONTENT_ENCODING ||
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code == NS_BINDING_RETARGETED ||
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code == NS_ERROR_CORRUPTED_CONTENT);
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}
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virtual void SetCleanShutdown(bool) = 0;
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virtual ExtendedCONNECTSupport GetExtendedCONNECTSupport() = 0;
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virtual Result<already_AddRefed<mozilla::net::nsHttpConnection>, nsresult>
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CreateTunnelStream(nsAHttpTransaction* aHttpTransaction,
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nsIInterfaceRequestor* aCallbacks, PRIntervalTime aRtt,
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bool aIsExtendedCONNECT = false) = 0;
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virtual WebTransportSessionBase* GetWebTransportSession(
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nsAHttpTransaction* aTransaction) = 0;
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};
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using ALPNCallback = bool (*)(nsITLSSocketControl*);
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// this is essentially a single instantiation as a member of nsHttpHandler.
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// It could be all static except using static ctors of XPCOM objects is a
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// bad idea.
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class SpdyInformation {
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public:
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SpdyInformation();
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~SpdyInformation() = default;
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SpdyVersion Version; // telemetry enum e.g. SPDY_VERSION_31
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nsCString VersionString; // npn string e.g. "spdy/3.1"
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// the ALPNCallback function allows the protocol stack to decide whether or
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// not to offer a particular protocol based on the known TLS information
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// that we will offer in the client hello (such as version). There has
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// not been a Server Hello received yet, so not much else can be considered.
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ALPNCallback ALPNCallbacks;
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};
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} // namespace net
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} // namespace mozilla
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#endif // mozilla_net_ASpdySession_h
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