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| 1 // Copyright (c) 2012 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 "sync/notifier/p2p_notifier.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "base/json/json_reader.h" | |
| 10 #include "base/json/json_writer.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "base/values.h" | |
| 13 #include "jingle/notifier/listener/push_client.h" | |
| 14 #include "sync/internal_api/public/base/model_type_state_map.h" | |
| 15 #include "sync/notifier/invalidation_util.h" | |
| 16 #include "sync/notifier/sync_notifier_observer.h" | |
| 17 | |
| 18 namespace syncer { | |
| 19 | |
| 20 const char* kSyncP2PNotificationChannel = "http://www.google.com/chrome/sync"; | |
| 21 | |
| 22 namespace { | |
| 23 | |
| 24 const char kNotifySelf[] = "notifySelf"; | |
| 25 const char kNotifyOthers[] = "notifyOthers"; | |
| 26 const char kNotifyAll[] = "notifyAll"; | |
| 27 | |
| 28 const char kSenderIdKey[] = "senderId"; | |
| 29 const char kNotificationTypeKey[] = "notificationType"; | |
| 30 const char kChangedTypesKey[] = "changedTypes"; | |
| 31 | |
| 32 } // namespace | |
| 33 | |
| 34 std::string P2PNotificationTargetToString(P2PNotificationTarget target) { | |
| 35 switch (target) { | |
| 36 case NOTIFY_SELF: | |
| 37 return kNotifySelf; | |
| 38 case NOTIFY_OTHERS: | |
| 39 return kNotifyOthers; | |
| 40 case NOTIFY_ALL: | |
| 41 return kNotifyAll; | |
| 42 default: | |
| 43 NOTREACHED(); | |
| 44 return ""; | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 P2PNotificationTarget P2PNotificationTargetFromString( | |
| 49 const std::string& target_str) { | |
| 50 if (target_str == kNotifySelf) { | |
| 51 return NOTIFY_SELF; | |
| 52 } | |
| 53 if (target_str == kNotifyOthers) { | |
| 54 return NOTIFY_OTHERS; | |
| 55 } | |
| 56 if (target_str == kNotifyAll) { | |
| 57 return NOTIFY_ALL; | |
| 58 } | |
| 59 LOG(WARNING) << "Could not parse " << target_str; | |
| 60 return NOTIFY_SELF; | |
| 61 } | |
| 62 | |
| 63 P2PNotificationData::P2PNotificationData() : target_(NOTIFY_SELF) {} | |
| 64 | |
| 65 P2PNotificationData::P2PNotificationData( | |
| 66 const std::string& sender_id, | |
| 67 P2PNotificationTarget target, | |
| 68 ModelTypeSet changed_types) | |
| 69 : sender_id_(sender_id), | |
| 70 target_(target), | |
| 71 changed_types_(changed_types) {} | |
| 72 | |
| 73 P2PNotificationData::~P2PNotificationData() {} | |
| 74 | |
| 75 bool P2PNotificationData::IsTargeted(const std::string& id) const { | |
| 76 switch (target_) { | |
| 77 case NOTIFY_SELF: | |
| 78 return sender_id_ == id; | |
| 79 case NOTIFY_OTHERS: | |
| 80 return sender_id_ != id; | |
| 81 case NOTIFY_ALL: | |
| 82 return true; | |
| 83 default: | |
| 84 NOTREACHED(); | |
| 85 return false; | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 ModelTypeSet P2PNotificationData::GetChangedTypes() const { | |
| 90 return changed_types_; | |
| 91 } | |
| 92 | |
| 93 bool P2PNotificationData::Equals(const P2PNotificationData& other) const { | |
| 94 return | |
| 95 (sender_id_ == other.sender_id_) && | |
| 96 (target_ == other.target_) && | |
| 97 changed_types_.Equals(other.changed_types_); | |
| 98 } | |
| 99 | |
| 100 std::string P2PNotificationData::ToString() const { | |
| 101 scoped_ptr<DictionaryValue> dict(new DictionaryValue()); | |
| 102 dict->SetString(kSenderIdKey, sender_id_); | |
| 103 dict->SetString(kNotificationTypeKey, | |
| 104 P2PNotificationTargetToString(target_)); | |
| 105 dict->Set(kChangedTypesKey, ModelTypeSetToValue(changed_types_)); | |
| 106 std::string json; | |
| 107 base::JSONWriter::Write(dict.get(), &json); | |
| 108 return json; | |
| 109 } | |
| 110 | |
| 111 bool P2PNotificationData::ResetFromString(const std::string& str) { | |
| 112 scoped_ptr<Value> data_value(base::JSONReader::Read(str)); | |
| 113 if (!data_value.get()) { | |
| 114 LOG(WARNING) << "Could not parse " << str; | |
| 115 return false; | |
| 116 } | |
| 117 if (!data_value->IsType(Value::TYPE_DICTIONARY)) { | |
| 118 LOG(WARNING) << "Could not parse " << str << " as a dictionary"; | |
| 119 return false; | |
| 120 } | |
| 121 // TODO(akalin): Use Values::AsDictionary() when it becomes | |
| 122 // available. | |
| 123 DictionaryValue* data_dict = | |
| 124 static_cast<DictionaryValue*>(data_value.get()); | |
| 125 if (!data_dict->GetString(kSenderIdKey, &sender_id_)) { | |
| 126 LOG(WARNING) << "Could not find string value for " << kSenderIdKey; | |
| 127 } | |
| 128 std::string target_str; | |
| 129 if (!data_dict->GetString(kNotificationTypeKey, &target_str)) { | |
| 130 LOG(WARNING) << "Could not find string value for " | |
| 131 << kNotificationTypeKey; | |
| 132 } | |
| 133 target_ = P2PNotificationTargetFromString(target_str); | |
| 134 ListValue* changed_types_list = NULL; | |
| 135 if (!data_dict->GetList(kChangedTypesKey, &changed_types_list)) { | |
| 136 LOG(WARNING) << "Could not find list value for " | |
| 137 << kChangedTypesKey; | |
| 138 return false; | |
| 139 } | |
| 140 changed_types_ = ModelTypeSetFromValue(*changed_types_list); | |
| 141 return true; | |
| 142 } | |
| 143 | |
| 144 P2PNotifier::P2PNotifier(scoped_ptr<notifier::PushClient> push_client, | |
| 145 P2PNotificationTarget send_notification_target) | |
| 146 : push_client_(push_client.Pass()), | |
| 147 logged_in_(false), | |
| 148 notifications_enabled_(false), | |
| 149 send_notification_target_(send_notification_target) { | |
| 150 DCHECK(send_notification_target_ == NOTIFY_OTHERS || | |
| 151 send_notification_target_ == NOTIFY_ALL); | |
| 152 push_client_->AddObserver(this); | |
| 153 } | |
| 154 | |
| 155 P2PNotifier::~P2PNotifier() { | |
| 156 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 157 push_client_->RemoveObserver(this); | |
| 158 } | |
| 159 | |
| 160 void P2PNotifier::RegisterHandler(SyncNotifierObserver* handler) { | |
| 161 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 162 registrar_.RegisterHandler(handler); | |
| 163 } | |
| 164 | |
| 165 void P2PNotifier::UpdateRegisteredIds(SyncNotifierObserver* handler, | |
| 166 const ObjectIdSet& ids) { | |
| 167 // TODO(akalin): Handle arbitrary object IDs (http://crbug.com/140411). | |
| 168 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 169 registrar_.UpdateRegisteredIds(handler, ids); | |
| 170 const ModelTypeSet enabled_types = | |
| 171 ObjectIdSetToModelTypeSet(registrar_.GetAllRegisteredIds()); | |
| 172 const ModelTypeSet new_enabled_types = | |
| 173 Difference(enabled_types, enabled_types_); | |
| 174 const P2PNotificationData notification_data( | |
| 175 unique_id_, NOTIFY_SELF, new_enabled_types); | |
| 176 SendNotificationData(notification_data); | |
| 177 enabled_types_ = enabled_types; | |
| 178 } | |
| 179 | |
| 180 void P2PNotifier::UnregisterHandler(SyncNotifierObserver* handler) { | |
| 181 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 182 registrar_.UnregisterHandler(handler); | |
| 183 } | |
| 184 | |
| 185 void P2PNotifier::SetUniqueId(const std::string& unique_id) { | |
| 186 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 187 unique_id_ = unique_id; | |
| 188 } | |
| 189 | |
| 190 void P2PNotifier::SetStateDeprecated(const std::string& state) { | |
| 191 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 192 // Do nothing. | |
| 193 } | |
| 194 | |
| 195 void P2PNotifier::UpdateCredentials( | |
| 196 const std::string& email, const std::string& token) { | |
| 197 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 198 notifier::Subscription subscription; | |
| 199 subscription.channel = kSyncP2PNotificationChannel; | |
| 200 // There may be some subtle issues around case sensitivity of the | |
| 201 // from field, but it doesn't matter too much since this is only | |
| 202 // used in p2p mode (which is only used in testing). | |
| 203 subscription.from = email; | |
| 204 push_client_->UpdateSubscriptions( | |
| 205 notifier::SubscriptionList(1, subscription)); | |
| 206 // If already logged in, the new credentials will take effect on the | |
| 207 // next reconnection. | |
| 208 push_client_->UpdateCredentials(email, token); | |
| 209 logged_in_ = true; | |
| 210 } | |
| 211 | |
| 212 void P2PNotifier::SendNotification(ModelTypeSet changed_types) { | |
| 213 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 214 const P2PNotificationData notification_data( | |
| 215 unique_id_, send_notification_target_, changed_types); | |
| 216 SendNotificationData(notification_data); | |
| 217 } | |
| 218 | |
| 219 void P2PNotifier::OnNotificationsEnabled() { | |
| 220 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 221 bool just_turned_on = (notifications_enabled_ == false); | |
| 222 notifications_enabled_ = true; | |
| 223 registrar_.EmitOnNotificationsEnabled(); | |
| 224 if (just_turned_on) { | |
| 225 const P2PNotificationData notification_data( | |
| 226 unique_id_, NOTIFY_SELF, enabled_types_); | |
| 227 SendNotificationData(notification_data); | |
| 228 } | |
| 229 } | |
| 230 | |
| 231 void P2PNotifier::OnNotificationsDisabled( | |
| 232 notifier::NotificationsDisabledReason reason) { | |
| 233 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 234 registrar_.EmitOnNotificationsDisabled(FromNotifierReason(reason)); | |
| 235 } | |
| 236 | |
| 237 void P2PNotifier::OnIncomingNotification( | |
| 238 const notifier::Notification& notification) { | |
| 239 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 240 DVLOG(1) << "Received notification " << notification.ToString(); | |
| 241 if (!logged_in_) { | |
| 242 DVLOG(1) << "Not logged in yet -- not emitting notification"; | |
| 243 return; | |
| 244 } | |
| 245 if (!notifications_enabled_) { | |
| 246 DVLOG(1) << "Notifications not on -- not emitting notification"; | |
| 247 return; | |
| 248 } | |
| 249 if (notification.channel != kSyncP2PNotificationChannel) { | |
| 250 LOG(WARNING) << "Notification from unexpected source " | |
| 251 << notification.channel; | |
| 252 } | |
| 253 P2PNotificationData notification_data; | |
| 254 if (!notification_data.ResetFromString(notification.data)) { | |
| 255 LOG(WARNING) << "Could not parse notification data from " | |
| 256 << notification.data; | |
| 257 notification_data = | |
| 258 P2PNotificationData(unique_id_, NOTIFY_ALL, enabled_types_); | |
| 259 } | |
| 260 if (!notification_data.IsTargeted(unique_id_)) { | |
| 261 DVLOG(1) << "Not a target of the notification -- " | |
| 262 << "not emitting notification"; | |
| 263 return; | |
| 264 } | |
| 265 const ModelTypeSet types_to_notify = | |
| 266 Intersection(enabled_types_, notification_data.GetChangedTypes()); | |
| 267 if (types_to_notify.Empty()) { | |
| 268 DVLOG(1) << "No enabled and changed types -- not emitting notification"; | |
| 269 return; | |
| 270 } | |
| 271 const ModelTypeStateMap& type_state_map = ModelTypeSetToStateMap( | |
| 272 notification_data.GetChangedTypes(), std::string()); | |
| 273 registrar_.DispatchInvalidationsToHandlers( | |
| 274 ModelTypeStateMapToObjectIdStateMap(type_state_map), | |
| 275 REMOTE_NOTIFICATION); | |
| 276 } | |
| 277 | |
| 278 void P2PNotifier::SendNotificationDataForTest( | |
| 279 const P2PNotificationData& notification_data) { | |
| 280 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 281 SendNotificationData(notification_data); | |
| 282 } | |
| 283 | |
| 284 void P2PNotifier::SendNotificationData( | |
| 285 const P2PNotificationData& notification_data) { | |
| 286 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 287 if (notification_data.GetChangedTypes().Empty()) { | |
| 288 DVLOG(1) << "Not sending XMPP notification with no changed types: " | |
| 289 << notification_data.ToString(); | |
| 290 return; | |
| 291 } | |
| 292 notifier::Notification notification; | |
| 293 notification.channel = kSyncP2PNotificationChannel; | |
| 294 notification.data = notification_data.ToString(); | |
| 295 DVLOG(1) << "Sending XMPP notification: " << notification.ToString(); | |
| 296 push_client_->SendNotification(notification); | |
| 297 } | |
| 298 | |
| 299 } // namespace syncer | |
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Chromium Code Reviews
Issue 10875064:
Rename SyncNotifier->Invalidator and SyncNotifierObserver->InvalidationHandler. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src