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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "content/renderer/media/cache_util.h" | 5 #include "content/renderer/media/cache_util.h" |
6 | 6 |
7 #include <string> | 7 #include <string> |
8 | 8 |
9 #include "base/strings/string_number_conversions.h" | 9 #include "base/strings/string_number_conversions.h" |
10 #include "base/strings/string_util.h" | 10 #include "base/strings/string_util.h" |
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41 !net::HttpUtil::HasStrongValidators( | 41 !net::HttpUtil::HasStrongValidators( |
42 http_version, | 42 http_version, |
43 response.httpHeaderField("etag").utf8(), | 43 response.httpHeaderField("etag").utf8(), |
44 response.httpHeaderField("Last-Modified").utf8(), | 44 response.httpHeaderField("Last-Modified").utf8(), |
45 response.httpHeaderField("Date").utf8())) { | 45 response.httpHeaderField("Date").utf8())) { |
46 reasons |= kNoStrongValidatorOnPartialResponse; | 46 reasons |= kNoStrongValidatorOnPartialResponse; |
47 } | 47 } |
48 | 48 |
49 std::string cache_control_header = | 49 std::string cache_control_header = |
50 response.httpHeaderField("cache-control").utf8(); | 50 response.httpHeaderField("cache-control").utf8(); |
51 StringToLowerASCII(&cache_control_header); | 51 base::StringToLowerASCII(&cache_control_header); |
52 if (cache_control_header.find("no-cache") != std::string::npos) | 52 if (cache_control_header.find("no-cache") != std::string::npos) |
53 reasons |= kNoCache; | 53 reasons |= kNoCache; |
54 if (cache_control_header.find("no-store") != std::string::npos) | 54 if (cache_control_header.find("no-store") != std::string::npos) |
55 reasons |= kNoStore; | 55 reasons |= kNoStore; |
56 if (cache_control_header.find("must-revalidate") != std::string::npos) | 56 if (cache_control_header.find("must-revalidate") != std::string::npos) |
57 reasons |= kHasMustRevalidate; | 57 reasons |= kHasMustRevalidate; |
58 | 58 |
59 const TimeDelta kMinimumAgeForUsefulness = | 59 const TimeDelta kMinimumAgeForUsefulness = |
60 TimeDelta::FromSeconds(3600); // Arbitrary value. | 60 TimeDelta::FromSeconds(3600); // Arbitrary value. |
61 | 61 |
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78 &expires) && | 78 &expires) && |
79 date > Time() && expires > Time() && | 79 date > Time() && expires > Time() && |
80 (expires - date) < kMinimumAgeForUsefulness) { | 80 (expires - date) < kMinimumAgeForUsefulness) { |
81 reasons |= kExpiresTooSoon; | 81 reasons |= kExpiresTooSoon; |
82 } | 82 } |
83 | 83 |
84 return reasons; | 84 return reasons; |
85 } | 85 } |
86 | 86 |
87 } // namespace content | 87 } // namespace content |
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