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.
5 #include "net/http/http_server_properties.h"
7 #include "base/logging.h"
8 #include "base/strings/stringprintf.h"
12 const char kAlternateProtocolHeader[] = "Alternate-Protocol";
16 // The order of these strings much match the order of the enum definition
17 // for AlternateProtocol.
18 const char* const kAlternateProtocolStrings[] = {
23 "npn-HTTP-draft-04/2.0",
26 const char kBrokenAlternateProtocol[] = "Broken";
29 arraysize(kAlternateProtocolStrings) == NUM_VALID_ALTERNATE_PROTOCOLS,
30 kAlternateProtocolStringsSize_kNumValidAlternateProtocols_not_equal);
34 bool IsAlternateProtocolValid(AlternateProtocol protocol) {
35 return protocol >= ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION &&
36 protocol <= ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION;
39 const char* AlternateProtocolToString(AlternateProtocol protocol) {
41 case DEPRECATED_NPN_SPDY_2:
45 case NPN_HTTP2_DRAFT_04:
47 DCHECK(IsAlternateProtocolValid(protocol));
48 return kAlternateProtocolStrings[
49 protocol - ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION];
50 case ALTERNATE_PROTOCOL_BROKEN:
51 return kBrokenAlternateProtocol;
52 case UNINITIALIZED_ALTERNATE_PROTOCOL:
53 return "Uninitialized";
59 AlternateProtocol AlternateProtocolFromString(const std::string& str) {
60 for (int i = ALTERNATE_PROTOCOL_MINIMUM_VALID_VERSION;
61 i <= ALTERNATE_PROTOCOL_MAXIMUM_VALID_VERSION; ++i) {
62 AlternateProtocol protocol = static_cast<AlternateProtocol>(i);
63 if (str == AlternateProtocolToString(protocol))
66 if (str == kBrokenAlternateProtocol)
67 return ALTERNATE_PROTOCOL_BROKEN;
68 return UNINITIALIZED_ALTERNATE_PROTOCOL;
71 AlternateProtocol AlternateProtocolFromNextProto(NextProto next_proto) {
73 case kProtoDeprecatedSPDY2:
74 return DEPRECATED_NPN_SPDY_2;
81 case kProtoHTTP2Draft04:
82 return NPN_HTTP2_DRAFT_04;
83 case kProtoQUIC1SPDY3:
91 NOTREACHED() << "Invalid NextProto: " << next_proto;
92 return UNINITIALIZED_ALTERNATE_PROTOCOL;
95 std::string PortAlternateProtocolPair::ToString() const {
96 return base::StringPrintf("%d:%s", port,
97 AlternateProtocolToString(protocol));