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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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