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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 "components/data_reduction_proxy/content/browser/content_lofi_decider.h
" | 5 #include "components/data_reduction_proxy/content/browser/content_lofi_decider.h
" |
6 | 6 |
7 #include <string> | 7 #include <string> |
8 | 8 |
9 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_conf
ig.h" | |
10 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_heade
rs.h" | 9 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_heade
rs.h" |
11 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_param
s.h" | 10 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_param
s.h" |
12 #include "content/public/browser/resource_request_info.h" | 11 #include "content/public/browser/resource_request_info.h" |
13 #include "net/base/load_flags.h" | 12 #include "net/base/load_flags.h" |
14 #include "net/http/http_request_headers.h" | 13 #include "net/http/http_request_headers.h" |
15 #include "net/proxy/proxy_server.h" | |
16 #include "net/url_request/url_request.h" | 14 #include "net/url_request/url_request.h" |
17 | 15 |
18 namespace data_reduction_proxy { | 16 namespace data_reduction_proxy { |
19 | 17 |
20 ContentLoFiDecider::ContentLoFiDecider() {} | 18 ContentLoFiDecider::ContentLoFiDecider() {} |
21 | 19 |
22 ContentLoFiDecider::~ContentLoFiDecider() {} | 20 ContentLoFiDecider::~ContentLoFiDecider() {} |
23 | 21 |
24 bool ContentLoFiDecider::IsUsingLoFiMode(const net::URLRequest& request) const { | 22 bool ContentLoFiDecider::IsUsingLoFiMode(const net::URLRequest& request) const { |
25 const content::ResourceRequestInfo* request_info = | 23 const content::ResourceRequestInfo* request_info = |
26 content::ResourceRequestInfo::ForRequest(&request); | 24 content::ResourceRequestInfo::ForRequest(&request); |
27 // The Lo-Fi directive should not be added for users in the Lo-Fi field | 25 // The Lo-Fi directive should not be added for users in the Lo-Fi field |
28 // trial "Control" group. Check that the user is in a group that can get | 26 // trial "Control" group. Check that the user is in a group that can get |
29 // "q=low". | 27 // "q=low". |
30 bool lofi_enabled_via_flag_or_field_trial = | 28 bool lofi_enabled_via_flag_or_field_trial = |
31 params::IsLoFiOnViaFlags() || params::IsIncludedInLoFiEnabledFieldTrial(); | 29 params::IsLoFiOnViaFlags() || params::IsIncludedInLoFiEnabledFieldTrial(); |
32 | 30 |
33 // Return if the user is using Lo-Fi and not part of the "Control" group. | 31 // Return if the user is using Lo-Fi and not part of the "Control" group. |
34 if (request_info) | 32 if (request_info) |
35 return request_info->IsUsingLoFi() && lofi_enabled_via_flag_or_field_trial; | 33 return request_info->IsUsingLoFi() && lofi_enabled_via_flag_or_field_trial; |
36 return false; | 34 return false; |
37 } | 35 } |
38 | 36 |
39 bool ContentLoFiDecider::MaybeAddLoFiDirectiveToHeaders( | 37 bool ContentLoFiDecider::MaybeAddLoFiDirectiveToHeaders( |
40 const net::URLRequest& request, | 38 const net::URLRequest& request, |
41 net::HttpRequestHeaders* headers, | 39 net::HttpRequestHeaders* headers) const { |
42 const net::ProxyServer& proxy_server, | |
43 DataReductionProxyConfig* config) const { | |
44 if (!proxy_server.is_valid() || proxy_server.is_direct() || | |
45 proxy_server.host_port_pair().IsEmpty() || | |
46 !config->IsDataReductionProxy(proxy_server.host_port_pair(), nullptr)) { | |
47 return false; | |
48 } | |
49 | |
50 const content::ResourceRequestInfo* request_info = | 40 const content::ResourceRequestInfo* request_info = |
51 content::ResourceRequestInfo::ForRequest(&request); | 41 content::ResourceRequestInfo::ForRequest(&request); |
52 | 42 |
53 if (!request_info) | 43 if (!request_info) |
54 return false; | 44 return false; |
55 | 45 |
56 // The Lo-Fi directive should not be added for users in the Lo-Fi field | 46 // The Lo-Fi directive should not be added for users in the Lo-Fi field |
57 // trial "Control" group. Check that the user is in a group that should | 47 // trial "Control" group. Check that the user is in a group that should |
58 // get "q=low". | 48 // get "q=low". |
59 bool lofi_enabled_via_flag_or_field_trial = | 49 bool lofi_enabled_via_flag_or_field_trial = |
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93 | 83 |
94 // |header_value| may be empty because the Lo-Fi directive is not added | 84 // |header_value| may be empty because the Lo-Fi directive is not added |
95 // to subrequests when preview mode is enabled. | 85 // to subrequests when preview mode is enabled. |
96 if (!header_value.empty()) | 86 if (!header_value.empty()) |
97 headers->SetHeader(chrome_proxy_header(), header_value); | 87 headers->SetHeader(chrome_proxy_header(), header_value); |
98 | 88 |
99 return true; | 89 return true; |
100 } | 90 } |
101 | 91 |
102 } // namespace data_reduction_proxy | 92 } // namespace data_reduction_proxy |
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