DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (9b7cd94eaf0a)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// HttpLog.h should generally be included first
#include "HttpLog.h"

/*
  Currently supported is h2
*/

#include "nsHttp.h"
#include "nsHttpHandler.h"

#include "ASpdySession.h"
#include "PSpdyPush.h"
#include "Http2Push.h"
#include "Http2Session.h"

#include "mozilla/Telemetry.h"

namespace mozilla {
namespace net {

ASpdySession* ASpdySession::NewSpdySession(net::SpdyVersion version,
                                           nsISocketTransport* aTransport,
                                           bool attemptingEarlyData) {
  // This is a necko only interface, so we can enforce version
  // requests as a precondition
  MOZ_ASSERT(version == SpdyVersion::HTTP_2, "Unsupported spdy version");

  // Don't do a runtime check of IsSpdyV?Enabled() here because pref value
  // may have changed since starting negotiation. The selected protocol comes
  // from a list provided in the SERVER HELLO filtered by our acceptable
  // versions, so there is no risk of the server ignoring our prefs.

  return new Http2Session(aTransport, version, attemptingEarlyData);
}

SpdyInformation::SpdyInformation() {
  // highest index of enabled protocols is the
  // most preferred for ALPN negotiaton
  Version[0] = SpdyVersion::HTTP_2;
  VersionString[0] = NS_LITERAL_CSTRING("h2");
  ALPNCallbacks[0] = Http2Session::ALPNCallback;
}

bool SpdyInformation::ProtocolEnabled(uint32_t index) const {
  MOZ_ASSERT(index < kCount, "index out of range");

  return gHttpHandler->IsHttp2Enabled();
}

nsresult SpdyInformation::GetNPNIndex(const nsACString& npnString,
                                      uint32_t* result) const {
  if (npnString.IsEmpty()) return NS_ERROR_FAILURE;

  for (uint32_t index = 0; index < kCount; ++index) {
    if (npnString.Equals(VersionString[index])) {
      *result = index;
      return NS_OK;
    }
  }

  return NS_ERROR_FAILURE;
}

//////////////////////////////////////////
// SpdyPushCache
//////////////////////////////////////////

SpdyPushCache::~SpdyPushCache() { mHashHttp2.Clear(); }

bool SpdyPushCache::RegisterPushedStreamHttp2(const nsCString& key,
                                              Http2PushedStream* stream) {
  LOG3(("SpdyPushCache::RegisterPushedStreamHttp2 %s 0x%X\n", key.get(),
        stream->StreamID()));
  if (mHashHttp2.Get(key)) {
    LOG3(("SpdyPushCache::RegisterPushedStreamHttp2 %s 0x%X duplicate key\n",
          key.get(), stream->StreamID()));
    return false;
  }
  mHashHttp2.Put(key, stream);
  return true;
}

Http2PushedStream* SpdyPushCache::RemovePushedStreamHttp2(
    const nsCString& key) {
  Http2PushedStream* rv = mHashHttp2.Get(key);
  LOG3(("SpdyPushCache::RemovePushedStreamHttp2 %s 0x%X\n", key.get(),
        rv ? rv->StreamID() : 0));
  if (rv) mHashHttp2.Remove(key);
  return rv;
}

Http2PushedStream* SpdyPushCache::RemovePushedStreamHttp2ByID(
    const nsCString& key, const uint32_t& streamID) {
  Http2PushedStream* rv = mHashHttp2.Get(key);
  LOG3(("SpdyPushCache::RemovePushedStreamHttp2ByID %s 0x%X 0x%X", key.get(),
        rv ? rv->StreamID() : 0, streamID));
  if (rv && streamID == rv->StreamID()) {
    mHashHttp2.Remove(key);
  } else {
    // Ensure we overwrite our rv with null in case the stream IDs don't match
    rv = nullptr;
  }
  return rv;
}

}  // namespace net
}  // namespace mozilla