1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set sw=2 ts=8 et tw=80 : */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 // HttpLog.h should generally be included first
8 #include "HttpLog.h"
9
10 /*
11 Currently supported is h2
12 */
13
14 #include "nsHttp.h"
15 #include "nsHttpHandler.h"
16
17 #include "ASpdySession.h"
18 #include "PSpdyPush.h"
19 #include "Http2Push.h"
20 #include "Http2Session.h"
21
22 #include "mozilla/Telemetry.h"
23
24 namespace mozilla {
25 namespace net {
26
NewSpdySession(net::SpdyVersion version,nsISocketTransport * aTransport,bool attemptingEarlyData)27 ASpdySession* ASpdySession::NewSpdySession(net::SpdyVersion version,
28 nsISocketTransport* aTransport,
29 bool attemptingEarlyData) {
30 // This is a necko only interface, so we can enforce version
31 // requests as a precondition
32 MOZ_ASSERT(version == SpdyVersion::HTTP_2, "Unsupported spdy version");
33
34 // Don't do a runtime check of IsSpdyV?Enabled() here because pref value
35 // may have changed since starting negotiation. The selected protocol comes
36 // from a list provided in the SERVER HELLO filtered by our acceptable
37 // versions, so there is no risk of the server ignoring our prefs.
38
39 return new Http2Session(aTransport, version, attemptingEarlyData);
40 }
41
SpdyInformation()42 SpdyInformation::SpdyInformation() {
43 // highest index of enabled protocols is the
44 // most preferred for ALPN negotiaton
45 Version[0] = SpdyVersion::HTTP_2;
46 VersionString[0] = NS_LITERAL_CSTRING("h2");
47 ALPNCallbacks[0] = Http2Session::ALPNCallback;
48 }
49
ProtocolEnabled(uint32_t index) const50 bool SpdyInformation::ProtocolEnabled(uint32_t index) const {
51 MOZ_ASSERT(index < kCount, "index out of range");
52
53 return gHttpHandler->IsHttp2Enabled();
54 }
55
GetNPNIndex(const nsACString & npnString,uint32_t * result) const56 nsresult SpdyInformation::GetNPNIndex(const nsACString& npnString,
57 uint32_t* result) const {
58 if (npnString.IsEmpty()) return NS_ERROR_FAILURE;
59
60 for (uint32_t index = 0; index < kCount; ++index) {
61 if (npnString.Equals(VersionString[index])) {
62 *result = index;
63 return NS_OK;
64 }
65 }
66
67 return NS_ERROR_FAILURE;
68 }
69
70 //////////////////////////////////////////
71 // SpdyPushCache
72 //////////////////////////////////////////
73
~SpdyPushCache()74 SpdyPushCache::~SpdyPushCache() { mHashHttp2.Clear(); }
75
RegisterPushedStreamHttp2(const nsCString & key,Http2PushedStream * stream)76 bool SpdyPushCache::RegisterPushedStreamHttp2(const nsCString& key,
77 Http2PushedStream* stream) {
78 LOG3(("SpdyPushCache::RegisterPushedStreamHttp2 %s 0x%X\n", key.get(),
79 stream->StreamID()));
80 if (mHashHttp2.Get(key)) {
81 LOG3(("SpdyPushCache::RegisterPushedStreamHttp2 %s 0x%X duplicate key\n",
82 key.get(), stream->StreamID()));
83 return false;
84 }
85 mHashHttp2.Put(key, stream);
86 return true;
87 }
88
RemovePushedStreamHttp2(const nsCString & key)89 Http2PushedStream* SpdyPushCache::RemovePushedStreamHttp2(
90 const nsCString& key) {
91 Http2PushedStream* rv = mHashHttp2.Get(key);
92 LOG3(("SpdyPushCache::RemovePushedStreamHttp2 %s 0x%X\n", key.get(),
93 rv ? rv->StreamID() : 0));
94 if (rv) mHashHttp2.Remove(key);
95 return rv;
96 }
97
RemovePushedStreamHttp2ByID(const nsCString & key,const uint32_t & streamID)98 Http2PushedStream* SpdyPushCache::RemovePushedStreamHttp2ByID(
99 const nsCString& key, const uint32_t& streamID) {
100 Http2PushedStream* rv = mHashHttp2.Get(key);
101 LOG3(("SpdyPushCache::RemovePushedStreamHttp2ByID %s 0x%X 0x%X", key.get(),
102 rv ? rv->StreamID() : 0, streamID));
103 if (rv && streamID == rv->StreamID()) {
104 mHashHttp2.Remove(key);
105 } else {
106 // Ensure we overwrite our rv with null in case the stream IDs don't match
107 rv = nullptr;
108 }
109 return rv;
110 }
111
112 } // namespace net
113 } // namespace mozilla
114