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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/http/http_vary_data.h" | 5 #include "net/http/http_vary_data.h" |
6 | 6 |
7 #include <stdlib.h> | 7 #include <stdlib.h> |
8 | 8 |
9 #include "base/pickle.h" | 9 #include "base/pickle.h" |
10 #include "base/strings/string_util.h" | 10 #include "base/strings/string_util.h" |
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82 bool HttpVaryData::MatchesRequest( | 82 bool HttpVaryData::MatchesRequest( |
83 const HttpRequestInfo& request_info, | 83 const HttpRequestInfo& request_info, |
84 const HttpResponseHeaders& cached_response_headers) const { | 84 const HttpResponseHeaders& cached_response_headers) const { |
85 HttpVaryData new_vary_data; | 85 HttpVaryData new_vary_data; |
86 if (!new_vary_data.Init(request_info, cached_response_headers)) { | 86 if (!new_vary_data.Init(request_info, cached_response_headers)) { |
87 // This shouldn't happen provided the same response headers passed here | 87 // This shouldn't happen provided the same response headers passed here |
88 // were also used when initializing |this|. | 88 // were also used when initializing |this|. |
89 NOTREACHED(); | 89 NOTREACHED(); |
90 return false; | 90 return false; |
91 } | 91 } |
92 return memcmp(&new_vary_data.request_digest_, &request_digest_, | 92 return memcmp(&new_vary_data.request_digest_, |
| 93 &request_digest_, |
93 sizeof(request_digest_)) == 0; | 94 sizeof(request_digest_)) == 0; |
94 } | 95 } |
95 | 96 |
96 // static | 97 // static |
97 std::string HttpVaryData::GetRequestValue( | 98 std::string HttpVaryData::GetRequestValue(const HttpRequestInfo& request_info, |
98 const HttpRequestInfo& request_info, | 99 const std::string& request_header) { |
99 const std::string& request_header) { | |
100 // Unfortunately, we do not have access to all of the request headers at this | 100 // Unfortunately, we do not have access to all of the request headers at this |
101 // point. Most notably, we do not have access to an Authorization header if | 101 // point. Most notably, we do not have access to an Authorization header if |
102 // one will be added to the request. | 102 // one will be added to the request. |
103 | 103 |
104 std::string result; | 104 std::string result; |
105 if (request_info.extra_headers.GetHeader(request_header, &result)) | 105 if (request_info.extra_headers.GetHeader(request_header, &result)) |
106 return result; | 106 return result; |
107 | 107 |
108 return std::string(); | 108 return std::string(); |
109 } | 109 } |
110 | 110 |
111 // static | 111 // static |
112 void HttpVaryData::AddField(const HttpRequestInfo& request_info, | 112 void HttpVaryData::AddField(const HttpRequestInfo& request_info, |
113 const std::string& request_header, | 113 const std::string& request_header, |
114 base::MD5Context* ctx) { | 114 base::MD5Context* ctx) { |
115 std::string request_value = GetRequestValue(request_info, request_header); | 115 std::string request_value = GetRequestValue(request_info, request_header); |
116 | 116 |
117 // Append a character that cannot appear in the request header line so that we | 117 // Append a character that cannot appear in the request header line so that we |
118 // protect against case where the concatenation of two request headers could | 118 // protect against case where the concatenation of two request headers could |
119 // look the same for a variety of values for the individual request headers. | 119 // look the same for a variety of values for the individual request headers. |
120 // For example, "foo: 12\nbar: 3" looks like "foo: 1\nbar: 23" otherwise. | 120 // For example, "foo: 12\nbar: 3" looks like "foo: 1\nbar: 23" otherwise. |
121 request_value.append(1, '\n'); | 121 request_value.append(1, '\n'); |
122 | 122 |
123 base::MD5Update(ctx, request_value); | 123 base::MD5Update(ctx, request_value); |
124 } | 124 } |
125 | 125 |
126 } // namespace net | 126 } // namespace net |
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