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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/ui/app_list/search/people/people_provider.h" |
| 6 |
| 7 #include <string> |
| 8 |
| 9 #include "base/bind.h" |
| 10 #include "base/callback.h" |
| 11 #include "base/metrics/field_trial.h" |
| 12 #include "base/strings/string_number_conversions.h" |
| 13 #include "base/strings/utf_string_conversions.h" |
| 14 #include "base/values.h" |
| 15 #include "chrome/browser/browser_process.h" |
| 16 #include "chrome/browser/profiles/profile.h" |
| 17 #include "chrome/browser/search/search.h" |
| 18 #include "chrome/browser/signin/profile_oauth2_token_service.h" |
| 19 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h" |
| 20 #include "chrome/browser/ui/app_list/search/common/json_response_fetcher.h" |
| 21 #include "chrome/browser/ui/app_list/search/people/people_result.h" |
| 22 #include "google_apis/gaia/gaia_constants.h" |
| 23 #include "net/base/url_util.h" |
| 24 #include "url/gurl.h" |
| 25 |
| 26 namespace app_list { |
| 27 |
| 28 namespace { |
| 29 |
| 30 const char kKeyItems[] = "items"; |
| 31 const char kKeyId[] = "person.id"; |
| 32 const char kKeyNames[] = "person.names"; |
| 33 const char kKeyDisplayName[] = "displayName"; |
| 34 const char kKeySortKeys[] = "person.sortKeys"; |
| 35 const char kKeyInteractionRank[] = "interactionRank"; |
| 36 const char kKeyImages[] = "person.images"; |
| 37 const char kKeyUrl[] = "url"; |
| 38 |
| 39 const char kAccessTokenField[] = "access_token"; |
| 40 const char kQueryField[] = "query"; |
| 41 const char kPeopleSearchUrl[] = |
| 42 "https://www.googleapis.com/plus/v2whitelisted/people/autocomplete"; |
| 43 |
| 44 // OAuth2 scope for access to the Google+ People Search API. |
| 45 const char kPeopleSearchOAuth2Scope[] = |
| 46 "https://www.googleapis.com/auth/plus.peopleapi.readwrite"; |
| 47 |
| 48 // Get's the value associated with the key in the first dictionary in the list. |
| 49 std::string GetFirstValue(const ListValue& list, const char key[]) { |
| 50 ListValue::const_iterator it = list.begin(); |
| 51 if (it == list.end()) |
| 52 return std::string(); |
| 53 |
| 54 base::DictionaryValue* dict; |
| 55 if (!(*it)->GetAsDictionary(&dict)) |
| 56 return std::string(); |
| 57 |
| 58 std::string value; |
| 59 if (!dict || !dict->GetString(key, &value)) |
| 60 return std::string(); |
| 61 |
| 62 return value; |
| 63 } |
| 64 |
| 65 } // namespace |
| 66 |
| 67 PeopleProvider::PeopleProvider(Profile* profile) |
| 68 : WebserviceSearchProvider(profile), |
| 69 people_search_url_(kPeopleSearchUrl), |
| 70 skip_request_token_for_test_(false) { |
| 71 oauth2_scope_.insert(kPeopleSearchOAuth2Scope); |
| 72 } |
| 73 |
| 74 PeopleProvider::~PeopleProvider() {} |
| 75 |
| 76 void PeopleProvider::Start(const base::string16& query) { |
| 77 ClearResults(); |
| 78 if (!IsValidQuery(query)) { |
| 79 query_.clear(); |
| 80 return; |
| 81 } |
| 82 |
| 83 query_ = UTF16ToUTF8(query); |
| 84 if (!people_search_) { |
| 85 people_search_.reset(new JSONResponseFetcher( |
| 86 base::Bind(&PeopleProvider::OnPeopleSearchFetched, |
| 87 base::Unretained(this)), |
| 88 profile_->GetRequestContext())); |
| 89 } |
| 90 |
| 91 if (!skip_request_token_for_test_) { |
| 92 // We start with reqesting the access token. Once the token is fetched, |
| 93 // we'll create the full query URL and fetch it. |
| 94 StartThrottledQuery(base::Bind(&PeopleProvider::RequestAccessToken, |
| 95 base::Unretained(this))); |
| 96 } else { |
| 97 // Running in a test, skip requesting the access token, straight away |
| 98 // start our query. |
| 99 StartThrottledQuery(base::Bind(&PeopleProvider::StartQuery, |
| 100 base::Unretained(this))); |
| 101 } |
| 102 } |
| 103 |
| 104 void PeopleProvider::Stop() { |
| 105 if (people_search_) |
| 106 people_search_->Stop(); |
| 107 } |
| 108 |
| 109 void PeopleProvider::OnGetTokenSuccess( |
| 110 const OAuth2TokenService::Request* request, |
| 111 const std::string& access_token, |
| 112 const base::Time& expiration_time) { |
| 113 DCHECK_EQ(access_token_request_, request); |
| 114 access_token_request_.reset(); |
| 115 access_token_ = access_token; |
| 116 StartQuery(); |
| 117 } |
| 118 |
| 119 void PeopleProvider::OnGetTokenFailure( |
| 120 const OAuth2TokenService::Request* request, |
| 121 const GoogleServiceAuthError& error) { |
| 122 DCHECK_EQ(access_token_request_, request); |
| 123 access_token_request_.reset(); |
| 124 } |
| 125 |
| 126 void PeopleProvider::RequestAccessToken() { |
| 127 // Only one active request at a time. |
| 128 if (access_token_request_ != NULL) |
| 129 return; |
| 130 |
| 131 OAuth2TokenService* token_service = |
| 132 ProfileOAuth2TokenServiceFactory::GetForProfile(profile_); |
| 133 access_token_request_ = token_service->StartRequest(oauth2_scope_, this); |
| 134 } |
| 135 |
| 136 GURL PeopleProvider::GetQueryUrl(const std::string& query) { |
| 137 GURL people_search_url = people_search_url_; |
| 138 people_search_url = net::AppendQueryParameter(people_search_url, |
| 139 kAccessTokenField, |
| 140 access_token_); |
| 141 people_search_url = net::AppendQueryParameter(people_search_url, |
| 142 kQueryField, |
| 143 query); |
| 144 |
| 145 return people_search_url; |
| 146 } |
| 147 |
| 148 void PeopleProvider::StartQuery() { |
| 149 // |query_| can be NULL when the query is scheduled but then canceled. |
| 150 if (!people_search_ || query_.empty()) |
| 151 return; |
| 152 |
| 153 GURL url = GetQueryUrl(query_); |
| 154 people_search_->Start(url); |
| 155 } |
| 156 |
| 157 void PeopleProvider::OnPeopleSearchFetched( |
| 158 scoped_ptr<base::DictionaryValue> json) { |
| 159 ProcessPeopleSearchResults(json.get()); |
| 160 |
| 161 if (!people_search_fetched_callback_.is_null()) |
| 162 people_search_fetched_callback_.Run(); |
| 163 } |
| 164 |
| 165 void PeopleProvider::ProcessPeopleSearchResults( |
| 166 const base::DictionaryValue* json) { |
| 167 const base::ListValue* item_list = NULL; |
| 168 if (!json || |
| 169 !json->GetList(kKeyItems, &item_list) || |
| 170 !item_list || |
| 171 item_list->empty()) { |
| 172 return; |
| 173 } |
| 174 |
| 175 ClearResults(); |
| 176 for (ListValue::const_iterator it = item_list->begin(); |
| 177 it != item_list->end(); |
| 178 ++it) { |
| 179 const base::DictionaryValue* dict; |
| 180 if (!(*it)->GetAsDictionary(&dict)) |
| 181 continue; |
| 182 |
| 183 scoped_ptr<ChromeSearchResult> result(CreateResult(*dict)); |
| 184 if (!result) |
| 185 continue; |
| 186 |
| 187 Add(result.Pass()); |
| 188 } |
| 189 } |
| 190 |
| 191 scoped_ptr<ChromeSearchResult> PeopleProvider::CreateResult( |
| 192 const base::DictionaryValue& dict) { |
| 193 scoped_ptr<ChromeSearchResult> result; |
| 194 |
| 195 std::string id; |
| 196 if (!dict.GetString(kKeyId, &id)) |
| 197 return result.Pass(); |
| 198 |
| 199 // Get the display name. |
| 200 const base::ListValue* names; |
| 201 if (!dict.GetList(kKeyNames, &names)) |
| 202 return result.Pass(); |
| 203 std::string display_name; |
| 204 display_name = GetFirstValue(*names, kKeyDisplayName); |
| 205 |
| 206 // Get the interaction rank. |
| 207 const base::DictionaryValue* sort_keys; |
| 208 if (!dict.GetDictionary(kKeySortKeys, &sort_keys)) |
| 209 return result.Pass(); |
| 210 std::string interaction_rank_string; |
| 211 if (!sort_keys->GetString(kKeyInteractionRank, &interaction_rank_string)) |
| 212 return result.Pass(); |
| 213 |
| 214 double interaction_rank; |
| 215 if (!base::StringToDouble(interaction_rank_string, &interaction_rank)) |
| 216 return result.Pass(); |
| 217 |
| 218 // If there has been no interaction with this user, the result |
| 219 // is meaningless, hence discard it. |
| 220 if (interaction_rank == 0.0) |
| 221 return result.Pass(); |
| 222 |
| 223 // Get the image URL. |
| 224 const base::ListValue* images; |
| 225 if (!dict.GetList(kKeyImages, &images)) |
| 226 return result.Pass(); |
| 227 std::string image_url_string; |
| 228 image_url_string = GetFirstValue(*images, kKeyUrl); |
| 229 |
| 230 if (id.empty() || |
| 231 display_name.empty() || |
| 232 interaction_rank_string.empty() || |
| 233 image_url_string.empty()) { |
| 234 return result.Pass(); |
| 235 } |
| 236 |
| 237 GURL image_url(image_url_string); |
| 238 if (!image_url.is_valid()) |
| 239 return result.Pass(); |
| 240 |
| 241 result.reset(new PeopleResult( |
| 242 profile_, id, display_name, interaction_rank, image_url)); |
| 243 return result.Pass(); |
| 244 } |
| 245 |
| 246 void PeopleProvider::SetupForTest( |
| 247 const base::Closure& people_search_fetched_callback, |
| 248 const GURL& people_search_url) { |
| 249 people_search_fetched_callback_ = people_search_fetched_callback; |
| 250 people_search_url_ = people_search_url; |
| 251 skip_request_token_for_test_ = true; |
| 252 } |
| 253 |
| 254 } // namespace app_list |
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