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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 "components/sync/core/base_node.h" | |
| 6 | |
| 7 #include <stack> | |
| 8 | |
| 9 #include "base/strings/string_number_conversions.h" | |
| 10 #include "base/strings/utf_string_conversions.h" | |
| 11 #include "components/sync/base/time.h" | |
| 12 #include "components/sync/core/base_transaction.h" | |
| 13 #include "components/sync/core_impl/syncapi_internal.h" | |
| 14 #include "components/sync/protocol/app_specifics.pb.h" | |
| 15 #include "components/sync/protocol/autofill_specifics.pb.h" | |
| 16 #include "components/sync/protocol/bookmark_specifics.pb.h" | |
| 17 #include "components/sync/protocol/extension_specifics.pb.h" | |
| 18 #include "components/sync/protocol/nigori_specifics.pb.h" | |
| 19 #include "components/sync/protocol/password_specifics.pb.h" | |
| 20 #include "components/sync/protocol/session_specifics.pb.h" | |
| 21 #include "components/sync/protocol/theme_specifics.pb.h" | |
| 22 #include "components/sync/protocol/typed_url_specifics.pb.h" | |
| 23 #include "components/sync/syncable/directory.h" | |
| 24 #include "components/sync/syncable/entry.h" | |
| 25 #include "components/sync/syncable/syncable_base_transaction.h" | |
| 26 #include "components/sync/syncable/syncable_id.h" | |
| 27 | |
| 28 using sync_pb::AutofillProfileSpecifics; | |
| 29 | |
| 30 namespace syncer { | |
| 31 | |
| 32 using syncable::SPECIFICS; | |
| 33 | |
| 34 // Helper function to look up the int64_t metahandle of an object given the ID | |
| 35 // string. | |
| 36 static int64_t IdToMetahandle(syncable::BaseTransaction* trans, | |
| 37 const syncable::Id& id) { | |
| 38 if (id.IsNull()) | |
| 39 return kInvalidId; | |
| 40 syncable::Entry entry(trans, syncable::GET_BY_ID, id); | |
| 41 if (!entry.good()) | |
| 42 return kInvalidId; | |
| 43 return entry.GetMetahandle(); | |
| 44 } | |
| 45 | |
| 46 BaseNode::BaseNode() : password_data_(new sync_pb::PasswordSpecificsData) {} | |
| 47 | |
| 48 BaseNode::~BaseNode() {} | |
| 49 | |
| 50 bool BaseNode::DecryptIfNecessary() { | |
| 51 if (GetIsPermanentFolder()) | |
| 52 return true; // Ignore unique folders. | |
| 53 const sync_pb::EntitySpecifics& specifics = GetEntry()->GetSpecifics(); | |
| 54 if (specifics.has_password()) { | |
| 55 // Passwords have their own legacy encryption structure. | |
| 56 std::unique_ptr<sync_pb::PasswordSpecificsData> data( | |
| 57 DecryptPasswordSpecifics(specifics, | |
| 58 GetTransaction()->GetCryptographer())); | |
| 59 if (!data) { | |
| 60 GetTransaction()->GetWrappedTrans()->OnUnrecoverableError( | |
| 61 FROM_HERE, std::string("Failed to decrypt encrypted node of type ") + | |
| 62 ModelTypeToString(GetModelType())); | |
| 63 return false; | |
| 64 } | |
| 65 password_data_.swap(data); | |
| 66 return true; | |
| 67 } | |
| 68 | |
| 69 // We assume any node with the encrypted field set has encrypted data and if | |
| 70 // not we have no work to do, with the exception of bookmarks. For bookmarks | |
| 71 // we must make sure the bookmarks data has the title field supplied. If not, | |
| 72 // we fill the unencrypted_data_ with a copy of the bookmark specifics that | |
| 73 // follows the new bookmarks format. | |
| 74 if (!specifics.has_encrypted()) { | |
| 75 if (GetModelType() == BOOKMARKS && !specifics.bookmark().has_title() && | |
| 76 !GetTitle().empty()) { // Last check ensures this isn't a new node. | |
| 77 // We need to fill in the title. | |
| 78 std::string title = GetTitle(); | |
| 79 std::string server_legal_title; | |
| 80 SyncAPINameToServerName(title, &server_legal_title); | |
| 81 DVLOG(1) << "Reading from legacy bookmark, manually returning title " | |
| 82 << title; | |
| 83 unencrypted_data_.CopyFrom(specifics); | |
| 84 unencrypted_data_.mutable_bookmark()->set_title(server_legal_title); | |
| 85 } | |
| 86 return true; | |
| 87 } | |
| 88 | |
| 89 const sync_pb::EncryptedData& encrypted = specifics.encrypted(); | |
| 90 std::string plaintext_data = | |
| 91 GetTransaction()->GetCryptographer()->DecryptToString(encrypted); | |
| 92 if (plaintext_data.length() == 0) { | |
| 93 GetTransaction()->GetWrappedTrans()->OnUnrecoverableError( | |
| 94 FROM_HERE, std::string("Failed to decrypt encrypted node of type ") + | |
| 95 ModelTypeToString(GetModelType())); | |
| 96 return false; | |
| 97 } else if (!unencrypted_data_.ParseFromString(plaintext_data)) { | |
| 98 GetTransaction()->GetWrappedTrans()->OnUnrecoverableError( | |
| 99 FROM_HERE, std::string("Failed to parse encrypted node of type ") + | |
| 100 ModelTypeToString(GetModelType())); | |
| 101 return false; | |
| 102 } | |
| 103 DVLOG(2) << "Decrypted specifics of type " | |
| 104 << ModelTypeToString(GetModelType()) | |
| 105 << " with content: " << plaintext_data; | |
| 106 return true; | |
| 107 } | |
| 108 | |
| 109 const sync_pb::EntitySpecifics& BaseNode::GetUnencryptedSpecifics( | |
| 110 const syncable::Entry* entry) const { | |
| 111 const sync_pb::EntitySpecifics& specifics = entry->GetSpecifics(); | |
| 112 if (specifics.has_encrypted()) { | |
| 113 DCHECK_NE(GetModelTypeFromSpecifics(unencrypted_data_), UNSPECIFIED); | |
| 114 return unencrypted_data_; | |
| 115 } else { | |
| 116 // Due to the change in bookmarks format, we need to check to see if this is | |
| 117 // a legacy bookmarks (and has no title field in the proto). If it is, we | |
| 118 // return the unencrypted_data_, which was filled in with the title by | |
| 119 // DecryptIfNecessary(). | |
| 120 if (GetModelType() == BOOKMARKS) { | |
| 121 const sync_pb::BookmarkSpecifics& bookmark_specifics = | |
| 122 specifics.bookmark(); | |
| 123 if (bookmark_specifics.has_title() || | |
| 124 GetTitle().empty() || // For the empty node case | |
| 125 GetIsPermanentFolder()) { | |
| 126 // It's possible we previously had to convert and set | |
| 127 // |unencrypted_data_| but then wrote our own data, so we allow | |
| 128 // |unencrypted_data_| to be non-empty. | |
| 129 return specifics; | |
| 130 } else { | |
| 131 DCHECK_EQ(GetModelTypeFromSpecifics(unencrypted_data_), BOOKMARKS); | |
| 132 return unencrypted_data_; | |
| 133 } | |
| 134 } else { | |
| 135 DCHECK_EQ(GetModelTypeFromSpecifics(unencrypted_data_), UNSPECIFIED); | |
| 136 return specifics; | |
| 137 } | |
| 138 } | |
| 139 } | |
| 140 | |
| 141 int64_t BaseNode::GetParentId() const { | |
| 142 return IdToMetahandle(GetTransaction()->GetWrappedTrans(), | |
| 143 GetEntry()->GetParentId()); | |
| 144 } | |
| 145 | |
| 146 int64_t BaseNode::GetId() const { | |
| 147 return GetEntry()->GetMetahandle(); | |
| 148 } | |
| 149 | |
| 150 base::Time BaseNode::GetModificationTime() const { | |
| 151 return GetEntry()->GetMtime(); | |
| 152 } | |
| 153 | |
| 154 bool BaseNode::GetIsFolder() const { | |
| 155 return GetEntry()->GetIsDir(); | |
| 156 } | |
| 157 | |
| 158 bool BaseNode::GetIsPermanentFolder() const { | |
| 159 bool is_permanent_folder = !GetEntry()->GetUniqueServerTag().empty(); | |
| 160 if (is_permanent_folder) { | |
| 161 // If the node is a permanent folder it must also have IS_DIR bit set, | |
| 162 // except some nigori nodes on old accounts. | |
| 163 DCHECK(GetIsFolder() || GetModelType() == NIGORI); | |
| 164 } | |
| 165 return is_permanent_folder; | |
| 166 } | |
| 167 | |
| 168 std::string BaseNode::GetTitle() const { | |
| 169 std::string result; | |
| 170 // TODO(zea): refactor bookmarks to not need this functionality. | |
| 171 if (BOOKMARKS == GetModelType() && | |
| 172 GetEntry()->GetSpecifics().has_encrypted()) { | |
| 173 // Special case for legacy bookmarks dealing with encryption. | |
| 174 ServerNameToSyncAPIName(GetBookmarkSpecifics().title(), &result); | |
| 175 } else { | |
| 176 ServerNameToSyncAPIName(GetEntry()->GetNonUniqueName(), &result); | |
| 177 } | |
| 178 return result; | |
| 179 } | |
| 180 | |
| 181 bool BaseNode::HasChildren() const { | |
| 182 syncable::Directory* dir = GetTransaction()->GetDirectory(); | |
| 183 syncable::BaseTransaction* trans = GetTransaction()->GetWrappedTrans(); | |
| 184 return dir->HasChildren(trans, GetEntry()->GetId()); | |
| 185 } | |
| 186 | |
| 187 int64_t BaseNode::GetPredecessorId() const { | |
| 188 syncable::Id id_string = GetEntry()->GetPredecessorId(); | |
| 189 if (id_string.IsNull()) | |
| 190 return kInvalidId; | |
| 191 return IdToMetahandle(GetTransaction()->GetWrappedTrans(), id_string); | |
| 192 } | |
| 193 | |
| 194 int64_t BaseNode::GetSuccessorId() const { | |
| 195 syncable::Id id_string = GetEntry()->GetSuccessorId(); | |
| 196 if (id_string.IsNull()) | |
| 197 return kInvalidId; | |
| 198 return IdToMetahandle(GetTransaction()->GetWrappedTrans(), id_string); | |
| 199 } | |
| 200 | |
| 201 int64_t BaseNode::GetFirstChildId() const { | |
| 202 syncable::Id id_string = GetEntry()->GetFirstChildId(); | |
| 203 if (id_string.IsNull()) | |
| 204 return kInvalidId; | |
| 205 return IdToMetahandle(GetTransaction()->GetWrappedTrans(), id_string); | |
| 206 } | |
| 207 | |
| 208 void BaseNode::GetChildIds(std::vector<int64_t>* result) const { | |
| 209 GetEntry()->GetChildHandles(result); | |
| 210 } | |
| 211 | |
| 212 int BaseNode::GetTotalNodeCount() const { | |
| 213 return GetEntry()->GetTotalNodeCount(); | |
| 214 } | |
| 215 | |
| 216 int BaseNode::GetPositionIndex() const { | |
| 217 return GetEntry()->GetPositionIndex(); | |
| 218 } | |
| 219 | |
| 220 base::DictionaryValue* BaseNode::ToValue() const { | |
| 221 return GetEntry()->ToValue(GetTransaction()->GetCryptographer()); | |
| 222 } | |
| 223 | |
| 224 int64_t BaseNode::GetExternalId() const { | |
| 225 return GetEntry()->GetLocalExternalId(); | |
| 226 } | |
| 227 | |
| 228 const syncable::Id& BaseNode::GetSyncId() const { | |
| 229 return GetEntry()->GetId(); | |
| 230 } | |
| 231 | |
| 232 const sync_pb::BookmarkSpecifics& BaseNode::GetBookmarkSpecifics() const { | |
| 233 DCHECK_EQ(GetModelType(), BOOKMARKS); | |
| 234 return GetEntitySpecifics().bookmark(); | |
| 235 } | |
| 236 | |
| 237 const sync_pb::NigoriSpecifics& BaseNode::GetNigoriSpecifics() const { | |
| 238 DCHECK_EQ(GetModelType(), NIGORI); | |
| 239 return GetEntitySpecifics().nigori(); | |
| 240 } | |
| 241 | |
| 242 const sync_pb::PasswordSpecificsData& BaseNode::GetPasswordSpecifics() const { | |
| 243 DCHECK_EQ(GetModelType(), PASSWORDS); | |
| 244 return *password_data_; | |
| 245 } | |
| 246 | |
| 247 const sync_pb::TypedUrlSpecifics& BaseNode::GetTypedUrlSpecifics() const { | |
| 248 DCHECK_EQ(GetModelType(), TYPED_URLS); | |
| 249 return GetEntitySpecifics().typed_url(); | |
| 250 } | |
| 251 | |
| 252 const sync_pb::ExperimentsSpecifics& BaseNode::GetExperimentsSpecifics() const { | |
| 253 DCHECK_EQ(GetModelType(), EXPERIMENTS); | |
| 254 return GetEntitySpecifics().experiments(); | |
| 255 } | |
| 256 | |
| 257 const sync_pb::EntitySpecifics& BaseNode::GetEntitySpecifics() const { | |
| 258 return GetUnencryptedSpecifics(GetEntry()); | |
| 259 } | |
| 260 | |
| 261 ModelType BaseNode::GetModelType() const { | |
| 262 return GetEntry()->GetModelType(); | |
| 263 } | |
| 264 | |
| 265 const AttachmentIdList BaseNode::GetAttachmentIds() const { | |
| 266 AttachmentIdList result; | |
| 267 const sync_pb::AttachmentMetadata& metadata = | |
| 268 GetEntry()->GetAttachmentMetadata(); | |
| 269 for (int i = 0; i < metadata.record_size(); ++i) { | |
| 270 result.push_back(AttachmentId::CreateFromProto(metadata.record(i).id())); | |
| 271 } | |
| 272 return result; | |
| 273 } | |
| 274 | |
| 275 void BaseNode::SetUnencryptedSpecifics( | |
| 276 const sync_pb::EntitySpecifics& specifics) { | |
| 277 ModelType type = GetModelTypeFromSpecifics(specifics); | |
| 278 DCHECK_NE(UNSPECIFIED, type); | |
| 279 if (GetModelType() != UNSPECIFIED) { | |
| 280 DCHECK_EQ(GetModelType(), type); | |
| 281 } | |
| 282 unencrypted_data_.CopyFrom(specifics); | |
| 283 } | |
| 284 | |
| 285 } // namespace syncer | |
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Chromium Code Reviews
Issue 2407163004:
[Sync] Move some directory-related things from core/ to syncable/. (Closed)
