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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/variations/variations_http_header_provider.h" | 5 #include "components/variations/variations_http_header_provider.h" |
| 6 | 6 |
| 7 #include <vector> | 7 #include <vector> |
| 8 | 8 |
| 9 #include "base/base64.h" | 9 #include "base/base64.h" |
| 10 #include "base/memory/singleton.h" | 10 #include "base/memory/singleton.h" |
| 11 #include "base/metrics/histogram.h" | 11 #include "base/metrics/histogram.h" |
| 12 #include "base/strings/string_number_conversions.h" | 12 #include "base/strings/string_number_conversions.h" |
| 13 #include "base/strings/string_split.h" | 13 #include "base/strings/string_split.h" |
| 14 #include "base/strings/string_util.h" | 14 #include "base/strings/string_util.h" |
| 15 #include "components/google/core/browser/google_util.h" | 15 #include "components/google/core/browser/google_util.h" |
| 16 #include "components/variations/proto/chrome_experiments.pb.h" | 16 #include "components/variations/proto/client_experiments.pb.h" |
| 17 #include "net/base/registry_controlled_domains/registry_controlled_domain.h" | 17 #include "net/base/registry_controlled_domains/registry_controlled_domain.h" |
| 18 #include "net/http/http_request_headers.h" | 18 #include "net/http/http_request_headers.h" |
| 19 #include "url/gurl.h" | 19 #include "url/gurl.h" |
| 20 | 20 |
| 21 // TODO(mathp): Once the move to variations namespace is complete, remove these. | 21 // TODO(mathp): Once the move to variations namespace is complete, remove these. |
| 22 using chrome_variations::EMPTY_ID; | 22 using chrome_variations::EMPTY_ID; |
| 23 using chrome_variations::GOOGLE_WEB_PROPERTIES; | 23 using chrome_variations::GOOGLE_WEB_PROPERTIES; |
| 24 using chrome_variations::GOOGLE_WEB_PROPERTIES_TRIGGER; | 24 using chrome_variations::GOOGLE_WEB_PROPERTIES_TRIGGER; |
| 25 using chrome_variations::VariationID; | 25 using chrome_variations::VariationID; |
| 26 | 26 |
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| 46 | 46 |
| 47 VariationsHttpHeaderProvider* VariationsHttpHeaderProvider::GetInstance() { | 47 VariationsHttpHeaderProvider* VariationsHttpHeaderProvider::GetInstance() { |
| 48 return Singleton<VariationsHttpHeaderProvider>::get(); | 48 return Singleton<VariationsHttpHeaderProvider>::get(); |
| 49 } | 49 } |
| 50 | 50 |
| 51 void VariationsHttpHeaderProvider::AppendHeaders( | 51 void VariationsHttpHeaderProvider::AppendHeaders( |
| 52 const GURL& url, | 52 const GURL& url, |
| 53 bool incognito, | 53 bool incognito, |
| 54 bool uma_enabled, | 54 bool uma_enabled, |
| 55 net::HttpRequestHeaders* headers) { | 55 net::HttpRequestHeaders* headers) { |
| 56 // Note the criteria for attaching Chrome experiment headers: | 56 // Note the criteria for attaching Client experiment headers: |
| 57 // 1. We only transmit to Google owned domains which can evaluate experiments. | 57 // 1. We only transmit to Google owned domains which can evaluate experiments. |
| 58 // 1a. These include hosts which have a standard postfix such as: | 58 // 1a. These include hosts which have a standard postfix such as: |
| 59 // *.doubleclick.net or *.googlesyndication.com or | 59 // *.doubleclick.net or *.googlesyndication.com or |
| 60 // exactly www.googleadservices.com or | 60 // exactly www.googleadservices.com or |
| 61 // international TLD domains *.google.<TLD> or *.youtube.<TLD>. | 61 // international TLD domains *.google.<TLD> or *.youtube.<TLD>. |
| 62 // 2. Only transmit for non-Incognito profiles. | 62 // 2. Only transmit for non-Incognito profiles. |
| 63 // 3. For the X-Chrome-UMA-Enabled bit, only set it if UMA is in fact enabled | 63 // 3. For the X-Chrome-UMA-Enabled bit, only set it if UMA is in fact enabled |
| 64 // for this install of Chrome. | 64 // for this install of Chrome. |
| 65 // 4. For the X-Client-Data header, only include non-empty variation IDs. | 65 // 4. For the X-Client-Data header, only include non-empty variation IDs. |
| 66 if (incognito || !ShouldAppendHeaders(url)) | 66 if (incognito || !ShouldAppendHeaders(url)) |
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| 204 DCHECK_LE(total_id_count, 10U); | 204 DCHECK_LE(total_id_count, 10U); |
| 205 if (total_id_count > 20) | 205 if (total_id_count > 20) |
| 206 return; | 206 return; |
| 207 | 207 |
| 208 // Merge the two sets of experiment ids. | 208 // Merge the two sets of experiment ids. |
| 209 std::set<VariationID> all_variation_ids_set = default_variation_ids_set_; | 209 std::set<VariationID> all_variation_ids_set = default_variation_ids_set_; |
| 210 for (std::set<VariationID>::const_iterator it = variation_ids_set_.begin(); | 210 for (std::set<VariationID>::const_iterator it = variation_ids_set_.begin(); |
| 211 it != variation_ids_set_.end(); ++it) { | 211 it != variation_ids_set_.end(); ++it) { |
| 212 all_variation_ids_set.insert(*it); | 212 all_variation_ids_set.insert(*it); |
| 213 } | 213 } |
| 214 metrics::ChromeVariations proto; | 214 metrics::ClientVariations proto; |
| 215 for (std::set<VariationID>::const_iterator it = all_variation_ids_set.begin(); | 215 for (std::set<VariationID>::const_iterator it = all_variation_ids_set.begin(); |
| 216 it != all_variation_ids_set.end(); ++it) { | 216 it != all_variation_ids_set.end(); ++it) { |
| 217 proto.add_variation_id(*it); | 217 proto.add_variation_id(*it); |
| 218 } | 218 } |
| 219 | 219 |
| 220 std::set<VariationID> all_trigger_ids_set = default_trigger_id_set_; | 220 std::set<VariationID> all_trigger_ids_set = default_trigger_id_set_; |
| 221 for (std::set<VariationID>::const_iterator it = | 221 for (std::set<VariationID>::const_iterator it = |
| 222 variation_trigger_ids_set_.begin(); | 222 variation_trigger_ids_set_.begin(); |
| 223 it != variation_trigger_ids_set_.end(); ++it) { | 223 it != variation_trigger_ids_set_.end(); ++it) { |
| 224 all_trigger_ids_set.insert(*it); | 224 all_trigger_ids_set.insert(*it); |
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| 256 for (size_t i = 0; i < arraysize(kSuffixesToSetHeadersFor); ++i) { | 256 for (size_t i = 0; i < arraysize(kSuffixesToSetHeadersFor); ++i) { |
| 257 if (EndsWith(host, kSuffixesToSetHeadersFor[i], false)) | 257 if (EndsWith(host, kSuffixesToSetHeadersFor[i], false)) |
| 258 return true; | 258 return true; |
| 259 } | 259 } |
| 260 | 260 |
| 261 return google_util::IsYoutubeDomainUrl(url, google_util::ALLOW_SUBDOMAIN, | 261 return google_util::IsYoutubeDomainUrl(url, google_util::ALLOW_SUBDOMAIN, |
| 262 google_util::ALLOW_NON_STANDARD_PORTS); | 262 google_util::ALLOW_NON_STANDARD_PORTS); |
| 263 } | 263 } |
| 264 | 264 |
| 265 } // namespace variations | 265 } // namespace variations |
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