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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/metrics/variations/variations_http_header_provider.h" | |
| 6 | |
| 7 #include <string> | |
| 8 | |
| 9 #include "base/base64.h" | |
| 10 #include "base/message_loop/message_loop.h" | |
| 11 #include "base/metrics/field_trial.h" | |
| 12 #include "base/run_loop.h" | |
| 13 #include "chrome/browser/metrics/variations/proto/chrome_experiments.pb.h" | |
| 14 #include "components/variations/entropy_provider.h" | |
| 15 #include "components/variations/variations_associated_data.h" | |
| 16 #include "net/http/http_request_headers.h" | |
| 17 #include "testing/gtest/include/gtest/gtest.h" | |
| 18 #include "url/gurl.h" | |
| 19 | |
| 20 namespace chrome_variations { | |
| 21 | |
| 22 namespace { | |
| 23 | |
| 24 // Decodes the variations header and extracts the variation ids. | |
| 25 bool ExtractVariationIds(const std::string& variations, | |
| 26 std::set<VariationID>* variation_ids, | |
| 27 std::set<VariationID>* trigger_ids) { | |
| 28 std::string serialized_proto; | |
| 29 if (!base::Base64Decode(variations, &serialized_proto)) | |
| 30 return false; | |
| 31 metrics::ChromeVariations proto; | |
| 32 if (!proto.ParseFromString(serialized_proto)) | |
| 33 return false; | |
| 34 for (int i = 0; i < proto.variation_id_size(); ++i) | |
| 35 variation_ids->insert(proto.variation_id(i)); | |
| 36 for (int i = 0; i < proto.trigger_variation_id_size(); ++i) | |
| 37 trigger_ids->insert(proto.trigger_variation_id(i)); | |
| 38 return true; | |
| 39 } | |
| 40 | |
| 41 scoped_refptr<base::FieldTrial> CreateTrialAndAssociateId( | |
| 42 const std::string& trial_name, | |
| 43 const std::string& default_group_name, | |
| 44 IDCollectionKey key, | |
| 45 VariationID id) { | |
| 46 scoped_refptr<base::FieldTrial> trial( | |
| 47 base::FieldTrialList::CreateFieldTrial(trial_name, default_group_name)); | |
| 48 | |
| 49 chrome_variations::AssociateGoogleVariationID(key, trial->trial_name(), | |
| 50 trial->group_name(), id); | |
| 51 | |
| 52 return trial; | |
| 53 } | |
| 54 | |
| 55 } // namespace | |
| 56 | |
| 57 class VariationsHttpHeaderProviderTest : public ::testing::Test { | |
| 58 public: | |
| 59 VariationsHttpHeaderProviderTest() {} | |
| 60 | |
| 61 virtual ~VariationsHttpHeaderProviderTest() {} | |
| 62 | |
| 63 virtual void TearDown() OVERRIDE { | |
| 64 testing::ClearAllVariationIDs(); | |
| 65 } | |
| 66 }; | |
| 67 | |
| 68 TEST_F(VariationsHttpHeaderProviderTest, ShouldAppendHeaders) { | |
| 69 struct { | |
| 70 const char* url; | |
| 71 bool should_append_headers; | |
| 72 } cases[] = { | |
| 73 { "http://google.com", true }, | |
| 74 { "http://www.google.com", true }, | |
| 75 { "http://m.google.com", true }, | |
| 76 { "http://google.ca", true }, | |
| 77 { "https://google.ca", true }, | |
| 78 { "http://google.co.uk", true }, | |
| 79 { "http://google.co.uk:8080/", true }, | |
| 80 { "http://www.google.co.uk:8080/", true }, | |
| 81 { "http://google", false }, | |
| 82 | |
| 83 { "http://youtube.com", true }, | |
| 84 { "http://www.youtube.com", true }, | |
| 85 { "http://www.youtube.ca", true }, | |
| 86 { "http://www.youtube.co.uk:8080/", true }, | |
| 87 { "https://www.youtube.com", true }, | |
| 88 { "http://youtube", false }, | |
| 89 | |
| 90 { "http://www.yahoo.com", false }, | |
| 91 | |
| 92 { "http://ad.doubleclick.net", true }, | |
| 93 { "https://a.b.c.doubleclick.net", true }, | |
| 94 { "https://a.b.c.doubleclick.net:8081", true }, | |
| 95 { "http://www.doubleclick.com", true }, | |
| 96 { "http://www.doubleclick.org", false }, | |
| 97 { "http://www.doubleclick.net.com", false }, | |
| 98 { "https://www.doubleclick.net.com", false }, | |
| 99 | |
| 100 { "http://ad.googlesyndication.com", true }, | |
| 101 { "https://a.b.c.googlesyndication.com", true }, | |
| 102 { "https://a.b.c.googlesyndication.com:8080", true }, | |
| 103 { "http://www.doubleclick.edu", false }, | |
| 104 { "http://www.googlesyndication.com.edu", false }, | |
| 105 { "https://www.googlesyndication.com.com", false }, | |
| 106 | |
| 107 { "http://www.googleadservices.com", true }, | |
| 108 { "http://www.googleadservices.com:8080", true }, | |
| 109 { "https://www.googleadservices.com", true }, | |
| 110 { "https://www.internal.googleadservices.com", true }, | |
| 111 { "https://www2.googleadservices.com", true }, | |
| 112 { "https://www.googleadservices.org", false }, | |
| 113 { "https://www.googleadservices.com.co.uk", false }, | |
| 114 | |
| 115 { "http://WWW.ANDROID.COM", true }, | |
| 116 { "http://www.android.com", true }, | |
| 117 { "http://www.doubleclick.com", true }, | |
| 118 { "http://www.doubleclick.net", true }, | |
| 119 { "http://www.ggpht.com", true }, | |
| 120 { "http://www.googleadservices.com", true }, | |
| 121 { "http://www.googleapis.com", true }, | |
| 122 { "http://www.googlesyndication.com", true }, | |
| 123 { "http://www.googleusercontent.com", true }, | |
| 124 { "http://www.googlevideo.com", true }, | |
| 125 { "http://ssl.gstatic.com", true }, | |
| 126 { "http://www.gstatic.com", true }, | |
| 127 { "http://www.ytimg.com", true }, | |
| 128 { "http://wwwytimg.com", false }, | |
| 129 { "http://ytimg.com", false }, | |
| 130 | |
| 131 { "http://www.android.org", false }, | |
| 132 { "http://www.doubleclick.org", false }, | |
| 133 { "http://www.doubleclick.net", true }, | |
| 134 { "http://www.ggpht.org", false }, | |
| 135 { "http://www.googleadservices.org", false }, | |
| 136 { "http://www.googleapis.org", false }, | |
| 137 { "http://www.googlesyndication.org", false }, | |
| 138 { "http://www.googleusercontent.org", false }, | |
| 139 { "http://www.googlevideo.org", false }, | |
| 140 { "http://ssl.gstatic.org", false }, | |
| 141 { "http://www.gstatic.org", false }, | |
| 142 { "http://www.ytimg.org", false }, | |
| 143 | |
| 144 { "http://a.b.android.com", true }, | |
| 145 { "http://a.b.doubleclick.com", true }, | |
| 146 { "http://a.b.doubleclick.net", true }, | |
| 147 { "http://a.b.ggpht.com", true }, | |
| 148 { "http://a.b.googleadservices.com", true }, | |
| 149 { "http://a.b.googleapis.com", true }, | |
| 150 { "http://a.b.googlesyndication.com", true }, | |
| 151 { "http://a.b.googleusercontent.com", true }, | |
| 152 { "http://a.b.googlevideo.com", true }, | |
| 153 { "http://ssl.gstatic.com", true }, | |
| 154 { "http://a.b.gstatic.com", true }, | |
| 155 { "http://a.b.ytimg.com", true }, | |
| 156 | |
| 157 }; | |
| 158 | |
| 159 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 160 const GURL url(cases[i].url); | |
| 161 EXPECT_EQ(cases[i].should_append_headers, | |
| 162 VariationsHttpHeaderProvider::ShouldAppendHeaders(url)) << url; | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 TEST_F(VariationsHttpHeaderProviderTest, SetDefaultVariationIds_Valid) { | |
| 167 base::MessageLoop loop; | |
| 168 VariationsHttpHeaderProvider provider; | |
| 169 GURL url("http://www.google.com"); | |
| 170 net::HttpRequestHeaders headers; | |
| 171 std::string variations; | |
| 172 | |
| 173 // Valid experiment ids. | |
| 174 EXPECT_TRUE(provider.SetDefaultVariationIds("12,456,t789")); | |
| 175 provider.InitVariationIDsCacheIfNeeded(); | |
| 176 provider.AppendHeaders(url, false, false, &headers); | |
| 177 EXPECT_TRUE(headers.HasHeader("X-Client-Data")); | |
| 178 headers.GetHeader("X-Client-Data", &variations); | |
| 179 std::set<VariationID> variation_ids; | |
| 180 std::set<VariationID> trigger_ids; | |
| 181 ASSERT_TRUE(ExtractVariationIds(variations, &variation_ids, &trigger_ids)); | |
| 182 EXPECT_TRUE(variation_ids.find(12) != variation_ids.end()); | |
| 183 EXPECT_TRUE(variation_ids.find(456) != variation_ids.end()); | |
| 184 EXPECT_TRUE(trigger_ids.find(789) != trigger_ids.end()); | |
| 185 EXPECT_FALSE(variation_ids.find(789) != variation_ids.end()); | |
| 186 } | |
| 187 | |
| 188 TEST_F(VariationsHttpHeaderProviderTest, SetDefaultVariationIds_Invalid) { | |
| 189 base::MessageLoop loop; | |
| 190 VariationsHttpHeaderProvider provider; | |
| 191 GURL url("http://www.google.com"); | |
| 192 net::HttpRequestHeaders headers; | |
| 193 | |
| 194 // Invalid experiment ids. | |
| 195 EXPECT_FALSE(provider.SetDefaultVariationIds("abcd12,456")); | |
| 196 provider.InitVariationIDsCacheIfNeeded(); | |
| 197 provider.AppendHeaders(url, false, false, &headers); | |
| 198 EXPECT_FALSE(headers.HasHeader("X-Client-Data")); | |
| 199 | |
| 200 // Invalid trigger experiment id | |
| 201 EXPECT_FALSE(provider.SetDefaultVariationIds("12,tabc456")); | |
| 202 provider.InitVariationIDsCacheIfNeeded(); | |
| 203 provider.AppendHeaders(url, false, false, &headers); | |
| 204 EXPECT_FALSE(headers.HasHeader("X-Client-Data")); | |
| 205 } | |
| 206 | |
| 207 TEST_F(VariationsHttpHeaderProviderTest, OnFieldTrialGroupFinalized) { | |
| 208 base::MessageLoop loop; | |
| 209 base::FieldTrialList field_trial_list( | |
| 210 new metrics::SHA1EntropyProvider("test")); | |
| 211 VariationsHttpHeaderProvider provider; | |
| 212 provider.InitVariationIDsCacheIfNeeded(); | |
| 213 | |
| 214 const std::string default_name = "default"; | |
| 215 scoped_refptr<base::FieldTrial> trial_1(CreateTrialAndAssociateId( | |
| 216 "t1", default_name, GOOGLE_WEB_PROPERTIES, 123)); | |
| 217 | |
| 218 ASSERT_EQ(default_name, trial_1->group_name()); | |
| 219 | |
| 220 scoped_refptr<base::FieldTrial> trial_2(CreateTrialAndAssociateId( | |
| 221 "t2", default_name, GOOGLE_WEB_PROPERTIES_TRIGGER, 456)); | |
| 222 | |
| 223 ASSERT_EQ(default_name, trial_2->group_name()); | |
| 224 | |
| 225 // Run the message loop to make sure OnFieldTrialGroupFinalized is called for | |
| 226 // the two field trials. | |
| 227 base::RunLoop().RunUntilIdle(); | |
| 228 | |
| 229 GURL url("http://www.google.com"); | |
| 230 net::HttpRequestHeaders headers; | |
| 231 provider.AppendHeaders(url, false, false, &headers); | |
| 232 std::string variations; | |
| 233 headers.GetHeader("X-Client-Data", &variations); | |
| 234 | |
| 235 std::set<VariationID> variation_ids; | |
| 236 std::set<VariationID> trigger_ids; | |
| 237 ASSERT_TRUE(ExtractVariationIds(variations, &variation_ids, &trigger_ids)); | |
| 238 EXPECT_TRUE(variation_ids.find(123) != variation_ids.end()); | |
| 239 EXPECT_TRUE(trigger_ids.find(456) != trigger_ids.end()); | |
| 240 } | |
| 241 | |
| 242 } // namespace chrome_variations | |
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