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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "net/http/http_server_properties.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "base/metrics/histogram.h" | |
9 #include "base/strings/stringprintf.h" | |
10 #include "net/socket/ssl_client_socket.h" | |
11 #include "net/ssl/ssl_config.h" | |
12 | |
13 namespace net { | |
14 | |
15 const char kAlternateProtocolHeader[] = "Alternate-Protocol"; | |
16 | |
17 namespace { | |
18 | |
19 // The order of these strings much match the order of the enum definition | |
20 // for AlternateProtocol. | |
21 const char* const kAlternateProtocolStrings[] = { | |
22 "npn-spdy/2", | |
23 "npn-spdy/3", | |
24 "npn-spdy/3.1", | |
25 "npn-h2-14", // HTTP/2 draft-14. Called SPDY4 internally. | |
26 "npn-h2-15", // HTTP/2 draft-15. Called SPDY4 internally. | |
27 "quic" | |
28 }; | |
29 | |
30 static_assert(arraysize(kAlternateProtocolStrings) == | |
31 NUM_VALID_ALTERNATE_PROTOCOLS, | |
32 "kAlternateProtocolStrings has incorrect size"); | |
33 | |
34 } // namespace | |
35 | |
36 void HistogramAlternateProtocolUsage(AlternateProtocolUsage usage) { | |
37 UMA_HISTOGRAM_ENUMERATION("Net.AlternateProtocolUsage", usage, | |
38 ALTERNATE_PROTOCOL_USAGE_MAX); | |
39 } | |
40 | |
41 void HistogramBrokenAlternateProtocolLocation( | |
42 BrokenAlternateProtocolLocation location){ | |
43 UMA_HISTOGRAM_ENUMERATION("Net.AlternateProtocolBrokenLocation", location, | |
44 BROKEN_ALTERNATE_PROTOCOL_LOCATION_MAX); | |
45 } | |
46 | |
47 bool IsAlternateProtocolValid(AlternateProtocol protocol) { | |
48 return protocol >= ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION && | |
49 protocol <= ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION; | |
50 } | |
51 | |
52 const char* AlternateProtocolToString(AlternateProtocol protocol) { | |
53 switch (protocol) { | |
54 case DEPRECATED_NPN_SPDY_2: | |
55 case NPN_SPDY_3: | |
56 case NPN_SPDY_3_1: | |
57 case NPN_SPDY_4_14: | |
58 case NPN_SPDY_4_15: | |
59 case QUIC: | |
60 DCHECK(IsAlternateProtocolValid(protocol)); | |
61 return kAlternateProtocolStrings[ | |
62 protocol - ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION]; | |
63 case UNINITIALIZED_ALTERNATE_PROTOCOL: | |
64 return "Uninitialized"; | |
65 } | |
66 NOTREACHED(); | |
67 return ""; | |
68 } | |
69 | |
70 AlternateProtocol AlternateProtocolFromString(const std::string& str) { | |
71 for (int i = ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION; | |
72 i <= ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION; ++i) { | |
73 AlternateProtocol protocol = static_cast<AlternateProtocol>(i); | |
74 if (str == AlternateProtocolToString(protocol)) | |
75 return protocol; | |
76 } | |
77 return UNINITIALIZED_ALTERNATE_PROTOCOL; | |
78 } | |
79 | |
80 AlternateProtocol AlternateProtocolFromNextProto(NextProto next_proto) { | |
81 switch (next_proto) { | |
82 case kProtoDeprecatedSPDY2: | |
83 return DEPRECATED_NPN_SPDY_2; | |
84 case kProtoSPDY3: | |
85 return NPN_SPDY_3; | |
86 case kProtoSPDY31: | |
87 return NPN_SPDY_3_1; | |
88 case kProtoSPDY4_14: | |
89 return NPN_SPDY_4_14; | |
90 case kProtoSPDY4_15: | |
91 return NPN_SPDY_4_15; | |
92 case kProtoQUIC1SPDY3: | |
93 return QUIC; | |
94 | |
95 case kProtoUnknown: | |
96 case kProtoHTTP11: | |
97 break; | |
98 } | |
99 | |
100 NOTREACHED() << "Invalid NextProto: " << next_proto; | |
101 return UNINITIALIZED_ALTERNATE_PROTOCOL; | |
102 } | |
103 | |
104 std::string AlternateProtocolInfo::ToString() const { | |
105 return base::StringPrintf("%d:%s p=%f%s", port, | |
106 AlternateProtocolToString(protocol), | |
107 probability, | |
108 is_broken ? " (broken)" : ""); | |
109 } | |
110 | |
111 // static | |
112 void HttpServerProperties::ForceHTTP11(SSLConfig* ssl_config) { | |
113 ssl_config->next_protos.clear(); | |
114 ssl_config->next_protos.push_back(kProtoHTTP11); | |
115 } | |
116 | |
117 } // namespace net | |
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