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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/search_engines/default_search_manager.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <utility> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/bind_helpers.h" | |
| 12 #include "base/compiler_specific.h" | |
| 13 #include "base/i18n/case_conversion.h" | |
| 14 #include "base/logging.h" | |
| 15 #include "base/prefs/pref_service.h" | |
| 16 #include "base/prefs/pref_value_map.h" | |
| 17 #include "base/stl_util.h" | |
| 18 #include "base/strings/string_number_conversions.h" | |
| 19 #include "base/strings/string_split.h" | |
| 20 #include "base/strings/string_util.h" | |
| 21 #include "base/strings/utf_string_conversions.h" | |
| 22 #include "base/time/time.h" | |
| 23 #include "chrome/browser/search_engines/template_url_prepopulate_data.h" | |
| 24 #include "components/pref_registry/pref_registry_syncable.h" | |
| 25 #include "components/search_engines/search_engines_pref_names.h" | |
| 26 #include "components/search_engines/template_url_data.h" | |
| 27 | |
| 28 namespace { | |
| 29 | |
| 30 bool g_fallback_search_engines_disabled = false; | |
| 31 | |
| 32 } // namespace | |
| 33 | |
| 34 // A dictionary to hold all data related to the Default Search Engine. | |
| 35 // Eventually, this should replace all the data stored in the | |
| 36 // default_search_provider.* prefs. | |
| 37 const char DefaultSearchManager::kDefaultSearchProviderDataPrefName[] = | |
| 38 "default_search_provider_data.template_url_data"; | |
| 39 | |
| 40 const char DefaultSearchManager::kID[] = "id"; | |
| 41 const char DefaultSearchManager::kShortName[] = "short_name"; | |
| 42 const char DefaultSearchManager::kKeyword[] = "keyword"; | |
| 43 const char DefaultSearchManager::kPrepopulateID[] = "prepopulate_id"; | |
| 44 const char DefaultSearchManager::kSyncGUID[] = "synced_guid"; | |
| 45 | |
| 46 const char DefaultSearchManager::kURL[] = "url"; | |
| 47 const char DefaultSearchManager::kSuggestionsURL[] = "suggestions_url"; | |
| 48 const char DefaultSearchManager::kInstantURL[] = "instant_url"; | |
| 49 const char DefaultSearchManager::kImageURL[] = "image_url"; | |
| 50 const char DefaultSearchManager::kNewTabURL[] = "new_tab_url"; | |
| 51 const char DefaultSearchManager::kFaviconURL[] = "favicon_url"; | |
| 52 const char DefaultSearchManager::kOriginatingURL[] = "originating_url"; | |
| 53 | |
| 54 const char DefaultSearchManager::kSearchURLPostParams[] = | |
| 55 "search_url_post_params"; | |
| 56 const char DefaultSearchManager::kSuggestionsURLPostParams[] = | |
| 57 "suggestions_url_post_params"; | |
| 58 const char DefaultSearchManager::kInstantURLPostParams[] = | |
| 59 "instant_url_post_params"; | |
| 60 const char DefaultSearchManager::kImageURLPostParams[] = | |
| 61 "image_url_post_params"; | |
| 62 | |
| 63 const char DefaultSearchManager::kSafeForAutoReplace[] = "safe_for_autoreplace"; | |
| 64 const char DefaultSearchManager::kInputEncodings[] = "input_encodings"; | |
| 65 | |
| 66 const char DefaultSearchManager::kDateCreated[] = "date_created"; | |
| 67 const char DefaultSearchManager::kLastModified[] = "last_modified"; | |
| 68 | |
| 69 const char DefaultSearchManager::kUsageCount[] = "usage_count"; | |
| 70 const char DefaultSearchManager::kAlternateURLs[] = "alternate_urls"; | |
| 71 const char DefaultSearchManager::kSearchTermsReplacementKey[] = | |
| 72 "search_terms_replacement_key"; | |
| 73 const char DefaultSearchManager::kCreatedByPolicy[] = "created_by_policy"; | |
| 74 const char DefaultSearchManager::kDisabledByPolicy[] = "disabled_by_policy"; | |
| 75 | |
| 76 DefaultSearchManager::DefaultSearchManager( | |
| 77 PrefService* pref_service, | |
| 78 const ObserverCallback& change_observer) | |
| 79 : pref_service_(pref_service), | |
| 80 change_observer_(change_observer), | |
| 81 default_search_controlled_by_policy_(false) { | |
| 82 if (pref_service_) { | |
| 83 pref_change_registrar_.Init(pref_service_); | |
| 84 pref_change_registrar_.Add( | |
| 85 kDefaultSearchProviderDataPrefName, | |
| 86 base::Bind(&DefaultSearchManager::OnDefaultSearchPrefChanged, | |
| 87 base::Unretained(this))); | |
| 88 pref_change_registrar_.Add( | |
| 89 prefs::kSearchProviderOverrides, | |
| 90 base::Bind(&DefaultSearchManager::OnOverridesPrefChanged, | |
| 91 base::Unretained(this))); | |
| 92 } | |
| 93 LoadPrepopulatedDefaultSearch(); | |
| 94 LoadDefaultSearchEngineFromPrefs(); | |
| 95 } | |
| 96 | |
| 97 DefaultSearchManager::~DefaultSearchManager() { | |
| 98 } | |
| 99 | |
| 100 // static | |
| 101 void DefaultSearchManager::RegisterProfilePrefs( | |
| 102 user_prefs::PrefRegistrySyncable* registry) { | |
| 103 registry->RegisterDictionaryPref( | |
| 104 kDefaultSearchProviderDataPrefName, | |
| 105 user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); | |
| 106 } | |
| 107 | |
| 108 // static | |
| 109 void DefaultSearchManager::AddPrefValueToMap(base::DictionaryValue* value, | |
| 110 PrefValueMap* pref_value_map) { | |
| 111 pref_value_map->SetValue(kDefaultSearchProviderDataPrefName, value); | |
| 112 } | |
| 113 | |
| 114 // static | |
| 115 void DefaultSearchManager::SetFallbackSearchEnginesDisabledForTesting( | |
| 116 bool disabled) { | |
| 117 g_fallback_search_engines_disabled = disabled; | |
| 118 } | |
| 119 | |
| 120 TemplateURLData* DefaultSearchManager::GetDefaultSearchEngine( | |
| 121 Source* source) const { | |
| 122 if (default_search_controlled_by_policy_) { | |
| 123 if (source) | |
| 124 *source = FROM_POLICY; | |
| 125 return prefs_default_search_.get(); | |
| 126 } | |
| 127 if (extension_default_search_) { | |
| 128 if (source) | |
| 129 *source = FROM_EXTENSION; | |
| 130 return extension_default_search_.get(); | |
| 131 } | |
| 132 if (prefs_default_search_) { | |
| 133 if (source) | |
| 134 *source = FROM_USER; | |
| 135 return prefs_default_search_.get(); | |
| 136 } | |
| 137 | |
| 138 if (source) | |
| 139 *source = FROM_FALLBACK; | |
| 140 return g_fallback_search_engines_disabled ? | |
| 141 NULL : fallback_default_search_.get(); | |
| 142 } | |
| 143 | |
| 144 DefaultSearchManager::Source | |
| 145 DefaultSearchManager::GetDefaultSearchEngineSource() const { | |
| 146 Source source; | |
| 147 GetDefaultSearchEngine(&source); | |
| 148 return source; | |
| 149 } | |
| 150 | |
| 151 void DefaultSearchManager::SetUserSelectedDefaultSearchEngine( | |
| 152 const TemplateURLData& data) { | |
| 153 if (!pref_service_) { | |
| 154 prefs_default_search_.reset(new TemplateURLData(data)); | |
| 155 MergePrefsDataWithPrepopulated(); | |
| 156 NotifyObserver(); | |
| 157 return; | |
| 158 } | |
| 159 | |
| 160 base::DictionaryValue url_dict; | |
| 161 url_dict.SetString(kID, base::Int64ToString(data.id)); | |
| 162 url_dict.SetString(kShortName, data.short_name); | |
| 163 url_dict.SetString(kKeyword, data.keyword()); | |
| 164 url_dict.SetInteger(kPrepopulateID, data.prepopulate_id); | |
| 165 url_dict.SetString(kSyncGUID, data.sync_guid); | |
| 166 | |
| 167 url_dict.SetString(kURL, data.url()); | |
| 168 url_dict.SetString(kSuggestionsURL, data.suggestions_url); | |
| 169 url_dict.SetString(kInstantURL, data.instant_url); | |
| 170 url_dict.SetString(kImageURL, data.image_url); | |
| 171 url_dict.SetString(kNewTabURL, data.new_tab_url); | |
| 172 url_dict.SetString(kFaviconURL, data.favicon_url.spec()); | |
| 173 url_dict.SetString(kOriginatingURL, data.originating_url.spec()); | |
| 174 | |
| 175 url_dict.SetString(kSearchURLPostParams, data.search_url_post_params); | |
| 176 url_dict.SetString(kSuggestionsURLPostParams, | |
| 177 data.suggestions_url_post_params); | |
| 178 url_dict.SetString(kInstantURLPostParams, data.instant_url_post_params); | |
| 179 url_dict.SetString(kImageURLPostParams, data.image_url_post_params); | |
| 180 | |
| 181 url_dict.SetBoolean(kSafeForAutoReplace, data.safe_for_autoreplace); | |
| 182 | |
| 183 url_dict.SetString(kDateCreated, | |
| 184 base::Int64ToString(data.date_created.ToInternalValue())); | |
| 185 url_dict.SetString(kLastModified, | |
| 186 base::Int64ToString(data.last_modified.ToInternalValue())); | |
| 187 url_dict.SetInteger(kUsageCount, data.usage_count); | |
| 188 | |
| 189 scoped_ptr<base::ListValue> alternate_urls(new base::ListValue); | |
| 190 for (std::vector<std::string>::const_iterator it = | |
| 191 data.alternate_urls.begin(); | |
| 192 it != data.alternate_urls.end(); ++it) { | |
| 193 alternate_urls->AppendString(*it); | |
| 194 } | |
| 195 url_dict.Set(kAlternateURLs, alternate_urls.release()); | |
| 196 | |
| 197 scoped_ptr<base::ListValue> encodings(new base::ListValue); | |
| 198 for (std::vector<std::string>::const_iterator it = | |
| 199 data.input_encodings.begin(); | |
| 200 it != data.input_encodings.end(); ++it) { | |
| 201 encodings->AppendString(*it); | |
| 202 } | |
| 203 url_dict.Set(kInputEncodings, encodings.release()); | |
| 204 | |
| 205 url_dict.SetString(kSearchTermsReplacementKey, | |
| 206 data.search_terms_replacement_key); | |
| 207 | |
| 208 url_dict.SetBoolean(kCreatedByPolicy, data.created_by_policy); | |
| 209 | |
| 210 pref_service_->Set(kDefaultSearchProviderDataPrefName, url_dict); | |
| 211 } | |
| 212 | |
| 213 void DefaultSearchManager::SetExtensionControlledDefaultSearchEngine( | |
| 214 const TemplateURLData& data) { | |
| 215 extension_default_search_.reset(new TemplateURLData(data)); | |
| 216 if (GetDefaultSearchEngineSource() == FROM_EXTENSION) | |
| 217 NotifyObserver(); | |
| 218 } | |
| 219 | |
| 220 void DefaultSearchManager::ClearExtensionControlledDefaultSearchEngine() { | |
| 221 Source old_source = GetDefaultSearchEngineSource(); | |
| 222 extension_default_search_.reset(); | |
| 223 if (old_source == FROM_EXTENSION) | |
| 224 NotifyObserver(); | |
| 225 } | |
| 226 | |
| 227 void DefaultSearchManager::ClearUserSelectedDefaultSearchEngine() { | |
| 228 if (pref_service_) { | |
| 229 pref_service_->ClearPref(kDefaultSearchProviderDataPrefName); | |
| 230 } else { | |
| 231 prefs_default_search_.reset(); | |
| 232 NotifyObserver(); | |
| 233 } | |
| 234 } | |
| 235 | |
| 236 void DefaultSearchManager::OnDefaultSearchPrefChanged() { | |
| 237 Source source = GetDefaultSearchEngineSource(); | |
| 238 LoadDefaultSearchEngineFromPrefs(); | |
| 239 | |
| 240 // If we were/are FROM_USER or FROM_POLICY the effective DSE may have changed. | |
| 241 if (source != FROM_USER && source != FROM_POLICY) | |
| 242 source = GetDefaultSearchEngineSource(); | |
| 243 if (source == FROM_USER || source == FROM_POLICY) | |
| 244 NotifyObserver(); | |
| 245 } | |
| 246 | |
| 247 void DefaultSearchManager::OnOverridesPrefChanged() { | |
| 248 LoadPrepopulatedDefaultSearch(); | |
| 249 | |
| 250 TemplateURLData* effective_data = GetDefaultSearchEngine(NULL); | |
| 251 if (effective_data && effective_data->prepopulate_id) { | |
| 252 // A user-selected, policy-selected or fallback pre-populated engine is | |
| 253 // active and may have changed with this event. | |
| 254 NotifyObserver(); | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 void DefaultSearchManager::MergePrefsDataWithPrepopulated() { | |
| 259 if (!prefs_default_search_ || !prefs_default_search_->prepopulate_id) | |
| 260 return; | |
| 261 | |
| 262 size_t default_search_index; | |
| 263 ScopedVector<TemplateURLData> prepopulated_urls = | |
| 264 TemplateURLPrepopulateData::GetPrepopulatedEngines(pref_service_, | |
| 265 &default_search_index); | |
| 266 | |
| 267 for (size_t i = 0; i < prepopulated_urls.size(); ++i) { | |
| 268 if (prepopulated_urls[i]->prepopulate_id == | |
| 269 prefs_default_search_->prepopulate_id) { | |
| 270 if (!prefs_default_search_->safe_for_autoreplace) { | |
| 271 prepopulated_urls[i]->safe_for_autoreplace = false; | |
| 272 prepopulated_urls[i]->SetKeyword(prefs_default_search_->keyword()); | |
| 273 prepopulated_urls[i]->short_name = prefs_default_search_->short_name; | |
| 274 } | |
| 275 prepopulated_urls[i]->id = prefs_default_search_->id; | |
| 276 prepopulated_urls[i]->sync_guid = prefs_default_search_->sync_guid; | |
| 277 prepopulated_urls[i]->date_created = prefs_default_search_->date_created; | |
| 278 prepopulated_urls[i]->last_modified = | |
| 279 prefs_default_search_->last_modified; | |
| 280 prefs_default_search_.reset(prepopulated_urls[i]); | |
| 281 prepopulated_urls.weak_erase(prepopulated_urls.begin() + i); | |
| 282 return; | |
| 283 } | |
| 284 } | |
| 285 } | |
| 286 | |
| 287 void DefaultSearchManager::LoadDefaultSearchEngineFromPrefs() { | |
| 288 if (!pref_service_) | |
| 289 return; | |
| 290 | |
| 291 prefs_default_search_.reset(); | |
| 292 const PrefService::Preference* pref = | |
| 293 pref_service_->FindPreference(kDefaultSearchProviderDataPrefName); | |
| 294 DCHECK(pref); | |
| 295 default_search_controlled_by_policy_ = pref->IsManaged(); | |
| 296 | |
| 297 const base::DictionaryValue* url_dict = | |
| 298 pref_service_->GetDictionary(kDefaultSearchProviderDataPrefName); | |
| 299 if (url_dict->empty()) | |
| 300 return; | |
| 301 | |
| 302 if (default_search_controlled_by_policy_) { | |
| 303 bool disabled_by_policy = false; | |
| 304 if (url_dict->GetBoolean(kDisabledByPolicy, &disabled_by_policy) && | |
| 305 disabled_by_policy) | |
| 306 return; | |
| 307 } | |
| 308 | |
| 309 std::string search_url; | |
| 310 base::string16 keyword; | |
| 311 url_dict->GetString(kURL, &search_url); | |
| 312 url_dict->GetString(kKeyword, &keyword); | |
| 313 if (search_url.empty() || keyword.empty()) | |
| 314 return; | |
| 315 | |
| 316 prefs_default_search_.reset(new TemplateURLData); | |
| 317 prefs_default_search_->SetKeyword(keyword); | |
| 318 prefs_default_search_->SetURL(search_url); | |
| 319 | |
| 320 std::string id; | |
| 321 url_dict->GetString(kID, &id); | |
| 322 base::StringToInt64(id, &prefs_default_search_->id); | |
| 323 url_dict->GetString(kShortName, &prefs_default_search_->short_name); | |
| 324 url_dict->GetInteger(kPrepopulateID, &prefs_default_search_->prepopulate_id); | |
| 325 url_dict->GetString(kSyncGUID, &prefs_default_search_->sync_guid); | |
| 326 | |
| 327 url_dict->GetString(kSuggestionsURL, &prefs_default_search_->suggestions_url); | |
| 328 url_dict->GetString(kInstantURL, &prefs_default_search_->instant_url); | |
| 329 url_dict->GetString(kImageURL, &prefs_default_search_->image_url); | |
| 330 url_dict->GetString(kNewTabURL, &prefs_default_search_->new_tab_url); | |
| 331 | |
| 332 std::string favicon_url; | |
| 333 std::string originating_url; | |
| 334 url_dict->GetString(kFaviconURL, &favicon_url); | |
| 335 url_dict->GetString(kOriginatingURL, &originating_url); | |
| 336 prefs_default_search_->favicon_url = GURL(favicon_url); | |
| 337 prefs_default_search_->originating_url = GURL(originating_url); | |
| 338 | |
| 339 url_dict->GetString(kSearchURLPostParams, | |
| 340 &prefs_default_search_->search_url_post_params); | |
| 341 url_dict->GetString(kSuggestionsURLPostParams, | |
| 342 &prefs_default_search_->suggestions_url_post_params); | |
| 343 url_dict->GetString(kInstantURLPostParams, | |
| 344 &prefs_default_search_->instant_url_post_params); | |
| 345 url_dict->GetString(kImageURLPostParams, | |
| 346 &prefs_default_search_->image_url_post_params); | |
| 347 | |
| 348 url_dict->GetBoolean(kSafeForAutoReplace, | |
| 349 &prefs_default_search_->safe_for_autoreplace); | |
| 350 | |
| 351 std::string date_created_str; | |
| 352 std::string last_modified_str; | |
| 353 url_dict->GetString(kDateCreated, &date_created_str); | |
| 354 url_dict->GetString(kLastModified, &last_modified_str); | |
| 355 | |
| 356 int64 date_created = 0; | |
| 357 if (base::StringToInt64(date_created_str, &date_created)) { | |
| 358 prefs_default_search_->date_created = | |
| 359 base::Time::FromInternalValue(date_created); | |
| 360 } | |
| 361 | |
| 362 int64 last_modified = 0; | |
| 363 if (base::StringToInt64(date_created_str, &last_modified)) { | |
| 364 prefs_default_search_->last_modified = | |
| 365 base::Time::FromInternalValue(last_modified); | |
| 366 } | |
| 367 | |
| 368 url_dict->GetInteger(kUsageCount, &prefs_default_search_->usage_count); | |
| 369 | |
| 370 const base::ListValue* alternate_urls = NULL; | |
| 371 if (url_dict->GetList(kAlternateURLs, &alternate_urls)) { | |
| 372 for (base::ListValue::const_iterator it = alternate_urls->begin(); | |
| 373 it != alternate_urls->end(); | |
| 374 ++it) { | |
| 375 std::string alternate_url; | |
| 376 if ((*it)->GetAsString(&alternate_url)) | |
| 377 prefs_default_search_->alternate_urls.push_back(alternate_url); | |
| 378 } | |
| 379 } | |
| 380 | |
| 381 const base::ListValue* encodings = NULL; | |
| 382 if (url_dict->GetList(kInputEncodings, &encodings)) { | |
| 383 for (base::ListValue::const_iterator it = encodings->begin(); | |
| 384 it != encodings->end(); | |
| 385 ++it) { | |
| 386 std::string encoding; | |
| 387 if ((*it)->GetAsString(&encoding)) | |
| 388 prefs_default_search_->input_encodings.push_back(encoding); | |
| 389 } | |
| 390 } | |
| 391 | |
| 392 url_dict->GetString(kSearchTermsReplacementKey, | |
| 393 &prefs_default_search_->search_terms_replacement_key); | |
| 394 | |
| 395 url_dict->GetBoolean(kCreatedByPolicy, | |
| 396 &prefs_default_search_->created_by_policy); | |
| 397 | |
| 398 prefs_default_search_->show_in_default_list = true; | |
| 399 MergePrefsDataWithPrepopulated(); | |
| 400 } | |
| 401 | |
| 402 void DefaultSearchManager::LoadPrepopulatedDefaultSearch() { | |
| 403 scoped_ptr<TemplateURLData> data = | |
| 404 TemplateURLPrepopulateData::GetPrepopulatedDefaultSearch(pref_service_); | |
| 405 fallback_default_search_ = data.Pass(); | |
| 406 MergePrefsDataWithPrepopulated(); | |
| 407 } | |
| 408 | |
| 409 void DefaultSearchManager::NotifyObserver() { | |
| 410 if (!change_observer_.is_null()) { | |
| 411 Source source = FROM_FALLBACK; | |
| 412 TemplateURLData* data = GetDefaultSearchEngine(&source); | |
| 413 change_observer_.Run(data, source); | |
| 414 } | |
| 415 } | |
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