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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 "components/invalidation/p2p_invalidator.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <iterator> | |
| 9 | |
| 10 #include "base/json/json_reader.h" | |
| 11 #include "base/json/json_writer.h" | |
| 12 #include "base/logging.h" | |
| 13 #include "base/values.h" | |
| 14 #include "components/invalidation/invalidation_handler.h" | |
| 15 #include "components/invalidation/invalidation_util.h" | |
| 16 #include "components/invalidation/notifier_reason_util.h" | |
| 17 #include "components/invalidation/object_id_invalidation_map.h" | |
| 18 #include "jingle/notifier/listener/push_client.h" | |
| 19 | |
| 20 namespace syncer { | |
| 21 | |
| 22 const char kSyncP2PNotificationChannel[] = "http://www.google.com/chrome/sync"; | |
| 23 | |
| 24 namespace { | |
| 25 | |
| 26 const char kNotifySelf[] = "notifySelf"; | |
| 27 const char kNotifyOthers[] = "notifyOthers"; | |
| 28 const char kNotifyAll[] = "notifyAll"; | |
| 29 | |
| 30 const char kSenderIdKey[] = "senderId"; | |
| 31 const char kNotificationTypeKey[] = "notificationType"; | |
| 32 const char kInvalidationsKey[] = "invalidations"; | |
| 33 | |
| 34 } // namespace | |
| 35 | |
| 36 std::string P2PNotificationTargetToString(P2PNotificationTarget target) { | |
| 37 switch (target) { | |
| 38 case NOTIFY_SELF: | |
| 39 return kNotifySelf; | |
| 40 case NOTIFY_OTHERS: | |
| 41 return kNotifyOthers; | |
| 42 case NOTIFY_ALL: | |
| 43 return kNotifyAll; | |
| 44 default: | |
| 45 NOTREACHED(); | |
| 46 return std::string(); | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 P2PNotificationTarget P2PNotificationTargetFromString( | |
| 51 const std::string& target_str) { | |
| 52 if (target_str == kNotifySelf) { | |
| 53 return NOTIFY_SELF; | |
| 54 } | |
| 55 if (target_str == kNotifyOthers) { | |
| 56 return NOTIFY_OTHERS; | |
| 57 } | |
| 58 if (target_str == kNotifyAll) { | |
| 59 return NOTIFY_ALL; | |
| 60 } | |
| 61 LOG(WARNING) << "Could not parse " << target_str; | |
| 62 return NOTIFY_SELF; | |
| 63 } | |
| 64 | |
| 65 P2PNotificationData::P2PNotificationData() | |
| 66 : target_(NOTIFY_SELF) {} | |
| 67 | |
| 68 P2PNotificationData::P2PNotificationData( | |
| 69 const std::string& sender_id, | |
| 70 P2PNotificationTarget target, | |
| 71 const ObjectIdInvalidationMap& invalidation_map) | |
| 72 : sender_id_(sender_id), | |
| 73 target_(target), | |
| 74 invalidation_map_(invalidation_map) {} | |
| 75 | |
| 76 P2PNotificationData::~P2PNotificationData() {} | |
| 77 | |
| 78 bool P2PNotificationData::IsTargeted(const std::string& id) const { | |
| 79 switch (target_) { | |
| 80 case NOTIFY_SELF: | |
| 81 return sender_id_ == id; | |
| 82 case NOTIFY_OTHERS: | |
| 83 return sender_id_ != id; | |
| 84 case NOTIFY_ALL: | |
| 85 return true; | |
| 86 default: | |
| 87 NOTREACHED(); | |
| 88 return false; | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 const ObjectIdInvalidationMap& | |
| 93 P2PNotificationData::GetIdInvalidationMap() const { | |
| 94 return invalidation_map_; | |
| 95 } | |
| 96 | |
| 97 bool P2PNotificationData::Equals(const P2PNotificationData& other) const { | |
| 98 return | |
| 99 (sender_id_ == other.sender_id_) && | |
| 100 (target_ == other.target_) && | |
| 101 (invalidation_map_ == other.invalidation_map_); | |
| 102 } | |
| 103 | |
| 104 std::string P2PNotificationData::ToString() const { | |
| 105 base::DictionaryValue dict; | |
| 106 dict.SetString(kSenderIdKey, sender_id_); | |
| 107 dict.SetString(kNotificationTypeKey, P2PNotificationTargetToString(target_)); | |
| 108 dict.Set(kInvalidationsKey, invalidation_map_.ToValue().release()); | |
| 109 std::string json; | |
| 110 base::JSONWriter::Write(dict, &json); | |
| 111 return json; | |
| 112 } | |
| 113 | |
| 114 bool P2PNotificationData::ResetFromString(const std::string& str) { | |
| 115 scoped_ptr<base::Value> data_value = base::JSONReader::Read(str); | |
| 116 const base::DictionaryValue* data_dict = NULL; | |
| 117 if (!data_value.get() || !data_value->GetAsDictionary(&data_dict)) { | |
| 118 LOG(WARNING) << "Could not parse " << str << " as a dictionary"; | |
| 119 return false; | |
| 120 } | |
| 121 if (!data_dict->GetString(kSenderIdKey, &sender_id_)) { | |
| 122 LOG(WARNING) << "Could not find string value for " << kSenderIdKey; | |
| 123 } | |
| 124 std::string target_str; | |
| 125 if (!data_dict->GetString(kNotificationTypeKey, &target_str)) { | |
| 126 LOG(WARNING) << "Could not find string value for " | |
| 127 << kNotificationTypeKey; | |
| 128 } | |
| 129 target_ = P2PNotificationTargetFromString(target_str); | |
| 130 const base::ListValue* invalidation_map_list = NULL; | |
| 131 if (!data_dict->GetList(kInvalidationsKey, &invalidation_map_list) || | |
| 132 !invalidation_map_.ResetFromValue(*invalidation_map_list)) { | |
| 133 LOG(WARNING) << "Could not parse " << kInvalidationsKey; | |
| 134 } | |
| 135 return true; | |
| 136 } | |
| 137 | |
| 138 P2PInvalidator::P2PInvalidator(scoped_ptr<notifier::PushClient> push_client, | |
| 139 const std::string& invalidator_client_id, | |
| 140 P2PNotificationTarget send_notification_target) | |
| 141 : push_client_(push_client.Pass()), | |
| 142 invalidator_client_id_(invalidator_client_id), | |
| 143 logged_in_(false), | |
| 144 notifications_enabled_(false), | |
| 145 send_notification_target_(send_notification_target) { | |
| 146 DCHECK(send_notification_target_ == NOTIFY_OTHERS || | |
| 147 send_notification_target_ == NOTIFY_ALL); | |
| 148 push_client_->AddObserver(this); | |
| 149 } | |
| 150 | |
| 151 P2PInvalidator::~P2PInvalidator() { | |
| 152 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 153 push_client_->RemoveObserver(this); | |
| 154 } | |
| 155 | |
| 156 void P2PInvalidator::RegisterHandler(InvalidationHandler* handler) { | |
| 157 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 158 registrar_.RegisterHandler(handler); | |
| 159 } | |
| 160 | |
| 161 bool P2PInvalidator::UpdateRegisteredIds(InvalidationHandler* handler, | |
| 162 const ObjectIdSet& ids) { | |
| 163 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 164 ObjectIdSet new_ids; | |
| 165 const ObjectIdSet& old_ids = registrar_.GetRegisteredIds(handler); | |
| 166 std::set_difference(ids.begin(), ids.end(), | |
| 167 old_ids.begin(), old_ids.end(), | |
| 168 std::inserter(new_ids, new_ids.end()), | |
| 169 ObjectIdLessThan()); | |
| 170 if (!registrar_.UpdateRegisteredIds(handler, ids)) | |
| 171 return false; | |
| 172 const P2PNotificationData notification_data( | |
| 173 invalidator_client_id_, | |
| 174 send_notification_target_, | |
| 175 ObjectIdInvalidationMap::InvalidateAll(ids)); | |
| 176 SendNotificationData(notification_data); | |
| 177 return true; | |
| 178 } | |
| 179 | |
| 180 void P2PInvalidator::UnregisterHandler(InvalidationHandler* handler) { | |
| 181 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 182 registrar_.UnregisterHandler(handler); | |
| 183 } | |
| 184 | |
| 185 InvalidatorState P2PInvalidator::GetInvalidatorState() const { | |
| 186 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 187 return registrar_.GetInvalidatorState(); | |
| 188 } | |
| 189 | |
| 190 void P2PInvalidator::UpdateCredentials( | |
| 191 const std::string& email, const std::string& token) { | |
| 192 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 193 notifier::Subscription subscription; | |
| 194 subscription.channel = kSyncP2PNotificationChannel; | |
| 195 // There may be some subtle issues around case sensitivity of the | |
| 196 // from field, but it doesn't matter too much since this is only | |
| 197 // used in p2p mode (which is only used in testing). | |
| 198 subscription.from = email; | |
| 199 push_client_->UpdateSubscriptions( | |
| 200 notifier::SubscriptionList(1, subscription)); | |
| 201 // If already logged in, the new credentials will take effect on the | |
| 202 // next reconnection. | |
| 203 push_client_->UpdateCredentials(email, token); | |
| 204 logged_in_ = true; | |
| 205 } | |
| 206 | |
| 207 void P2PInvalidator::RequestDetailedStatus( | |
| 208 base::Callback<void(const base::DictionaryValue&)> callback) const { | |
| 209 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 210 // TODO(mferreria): Make the P2P Invalidator work. | |
| 211 scoped_ptr<base::DictionaryValue> value(new base::DictionaryValue()); | |
| 212 callback.Run(*value); | |
| 213 } | |
| 214 | |
| 215 void P2PInvalidator::SendInvalidation(const ObjectIdSet& ids) { | |
| 216 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 217 ObjectIdInvalidationMap invalidation_map = | |
| 218 ObjectIdInvalidationMap::InvalidateAll(ids); | |
| 219 const P2PNotificationData notification_data( | |
| 220 invalidator_client_id_, send_notification_target_, invalidation_map); | |
| 221 SendNotificationData(notification_data); | |
| 222 } | |
| 223 | |
| 224 void P2PInvalidator::OnNotificationsEnabled() { | |
| 225 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 226 bool just_turned_on = (notifications_enabled_ == false); | |
| 227 notifications_enabled_ = true; | |
| 228 registrar_.UpdateInvalidatorState(INVALIDATIONS_ENABLED); | |
| 229 if (just_turned_on) { | |
| 230 const P2PNotificationData notification_data( | |
| 231 invalidator_client_id_, | |
| 232 NOTIFY_SELF, | |
| 233 ObjectIdInvalidationMap::InvalidateAll( | |
| 234 registrar_.GetAllRegisteredIds())); | |
| 235 SendNotificationData(notification_data); | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 void P2PInvalidator::OnNotificationsDisabled( | |
| 240 notifier::NotificationsDisabledReason reason) { | |
| 241 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 242 registrar_.UpdateInvalidatorState(FromNotifierReason(reason)); | |
| 243 } | |
| 244 | |
| 245 void P2PInvalidator::OnIncomingNotification( | |
| 246 const notifier::Notification& notification) { | |
| 247 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 248 DVLOG(1) << "Received notification " << notification.ToString(); | |
| 249 if (!logged_in_) { | |
| 250 DVLOG(1) << "Not logged in yet -- not emitting notification"; | |
| 251 return; | |
| 252 } | |
| 253 if (!notifications_enabled_) { | |
| 254 DVLOG(1) << "Notifications not on -- not emitting notification"; | |
| 255 return; | |
| 256 } | |
| 257 if (notification.channel != kSyncP2PNotificationChannel) { | |
| 258 LOG(WARNING) << "Notification from unexpected source " | |
| 259 << notification.channel; | |
| 260 } | |
| 261 P2PNotificationData notification_data; | |
| 262 if (!notification_data.ResetFromString(notification.data)) { | |
| 263 LOG(WARNING) << "Could not parse notification data from " | |
| 264 << notification.data; | |
| 265 notification_data = P2PNotificationData( | |
| 266 invalidator_client_id_, | |
| 267 NOTIFY_ALL, | |
| 268 ObjectIdInvalidationMap::InvalidateAll( | |
| 269 registrar_.GetAllRegisteredIds())); | |
| 270 } | |
| 271 if (!notification_data.IsTargeted(invalidator_client_id_)) { | |
| 272 DVLOG(1) << "Not a target of the notification -- " | |
| 273 << "not emitting notification"; | |
| 274 return; | |
| 275 } | |
| 276 registrar_.DispatchInvalidationsToHandlers( | |
| 277 notification_data.GetIdInvalidationMap()); | |
| 278 } | |
| 279 | |
| 280 void P2PInvalidator::SendNotificationDataForTest( | |
| 281 const P2PNotificationData& notification_data) { | |
| 282 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 283 SendNotificationData(notification_data); | |
| 284 } | |
| 285 | |
| 286 void P2PInvalidator::SendNotificationData( | |
| 287 const P2PNotificationData& notification_data) { | |
| 288 DCHECK(thread_checker_.CalledOnValidThread()); | |
| 289 if (notification_data.GetIdInvalidationMap().Empty()) { | |
| 290 DVLOG(1) << "Not sending XMPP notification with empty state map: " | |
| 291 << notification_data.ToString(); | |
| 292 return; | |
| 293 } | |
| 294 notifier::Notification notification; | |
| 295 notification.channel = kSyncP2PNotificationChannel; | |
| 296 notification.data = notification_data.ToString(); | |
| 297 DVLOG(1) << "Sending XMPP notification: " << notification.ToString(); | |
| 298 push_client_->SendNotification(notification); | |
| 299 } | |
| 300 | |
| 301 } // namespace syncer | |
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Chromium Code Reviews
Issue 1191393008:
Introduce a layering in the invalidation component as public and impl (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master