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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sync/syncable/entry_kernel.h"
#include "base/string_number_conversions.h"
#include "sync/protocol/proto_value_conversions.h"
#include "sync/syncable/syncable_enum_conversions.h"
#include "sync/util/cryptographer.h"
namespace syncer {
namespace syncable {
EntryKernel::EntryKernel() : dirty_(false) {
// Everything else should already be default-initialized.
for (int i = INT64_FIELDS_BEGIN; i < INT64_FIELDS_END; ++i) {
int64_fields[i] = 0;
}
}
EntryKernel::~EntryKernel() {}
ModelType EntryKernel::GetServerModelType() const {
ModelType specifics_type = GetModelTypeFromSpecifics(ref(SERVER_SPECIFICS));
if (specifics_type != UNSPECIFIED)
return specifics_type;
if (ref(ID).IsRoot())
return TOP_LEVEL_FOLDER;
// Loose check for server-created top-level folders that aren't
// bound to a particular model type.
if (!ref(UNIQUE_SERVER_TAG).empty() && ref(SERVER_IS_DIR))
return TOP_LEVEL_FOLDER;
return UNSPECIFIED;
}
namespace {
// Utility function to loop through a set of enum values and add the
// field keys/values in the kernel to the given dictionary.
//
// V should be convertible to Value.
template <class T, class U, class V>
void SetFieldValues(const EntryKernel& kernel,
base::DictionaryValue* dictionary_value,
const char* (*enum_key_fn)(T),
V* (*enum_value_fn)(U),
int field_key_min, int field_key_max) {
DCHECK_LE(field_key_min, field_key_max);
for (int i = field_key_min; i <= field_key_max; ++i) {
T field = static_cast<T>(i);
const std::string& key = enum_key_fn(field);
V* value = enum_value_fn(kernel.ref(field));
dictionary_value->Set(key, value);
}
}
void SetEncryptableProtoValues(
const EntryKernel& kernel,
Cryptographer* cryptographer,
base::DictionaryValue* dictionary_value,
int field_key_min, int field_key_max) {
DCHECK_LE(field_key_min, field_key_max);
for (int i = field_key_min; i <= field_key_max; ++i) {
ProtoField field = static_cast<ProtoField>(i);
const std::string& key = GetProtoFieldString(field);
base::DictionaryValue* value = NULL;
sync_pb::EntitySpecifics decrypted;
const sync_pb::EncryptedData& encrypted = kernel.ref(field).encrypted();
if (cryptographer &&
kernel.ref(field).has_encrypted() &&
cryptographer->CanDecrypt(encrypted) &&
cryptographer->Decrypt(encrypted, &decrypted)) {
value = EntitySpecificsToValue(decrypted);
value->SetBoolean("encrypted", "true");
} else {
value = EntitySpecificsToValue(kernel.ref(field));
}
dictionary_value->Set(key, value);
}
}
// Helper functions for SetFieldValues().
base::StringValue* Int64ToValue(int64 i) {
return new base::StringValue(base::Int64ToString(i));
}
base::StringValue* TimeToValue(const base::Time& t) {
return new base::StringValue(GetTimeDebugString(t));
}
base::StringValue* IdToValue(const Id& id) {
return id.ToValue();
}
base::StringValue* OrdinalToValue(const NodeOrdinal& ord) {
return new base::StringValue(ord.ToDebugString());
}
base::FundamentalValue* BooleanToValue(bool bool_val) {
return new base::FundamentalValue(bool_val);
}
base::StringValue* StringToValue(const std::string& str) {
return new base::StringValue(str);
}
} // namespace
base::DictionaryValue* EntryKernel::ToValue(
Cryptographer* cryptographer) const {
base::DictionaryValue* kernel_info = new base::DictionaryValue();
kernel_info->SetBoolean("isDirty", is_dirty());
kernel_info->Set("serverModelType", ModelTypeToValue(GetServerModelType()));
// Int64 fields.
SetFieldValues(*this, kernel_info,
&GetMetahandleFieldString, &Int64ToValue,
INT64_FIELDS_BEGIN, META_HANDLE);
SetFieldValues(*this, kernel_info,
&GetBaseVersionString, &Int64ToValue,
META_HANDLE + 1, BASE_VERSION);
SetFieldValues(*this, kernel_info,
&GetInt64FieldString, &Int64ToValue,
BASE_VERSION + 1, INT64_FIELDS_END - 1);
// Time fields.
SetFieldValues(*this, kernel_info,
&GetTimeFieldString, &TimeToValue,
TIME_FIELDS_BEGIN, TIME_FIELDS_END - 1);
// ID fields.
SetFieldValues(*this, kernel_info,
&GetIdFieldString, &IdToValue,
ID_FIELDS_BEGIN, ID_FIELDS_END - 1);
// Bit fields.
SetFieldValues(*this, kernel_info,
&GetIndexedBitFieldString, &BooleanToValue,
BIT_FIELDS_BEGIN, INDEXED_BIT_FIELDS_END - 1);
SetFieldValues(*this, kernel_info,
&GetIsDelFieldString, &BooleanToValue,
INDEXED_BIT_FIELDS_END, IS_DEL);
SetFieldValues(*this, kernel_info,
&GetBitFieldString, &BooleanToValue,
IS_DEL + 1, BIT_FIELDS_END - 1);
// String fields.
{
// Pick out the function overload we want.
SetFieldValues(*this, kernel_info,
&GetStringFieldString, &StringToValue,
STRING_FIELDS_BEGIN, STRING_FIELDS_END - 1);
}
// Proto fields.
SetEncryptableProtoValues(*this, cryptographer, kernel_info,
PROTO_FIELDS_BEGIN, PROTO_FIELDS_END - 1);
// Ordinal fields
SetFieldValues(*this, kernel_info,
&GetOrdinalFieldString, &OrdinalToValue,
ORDINAL_FIELDS_BEGIN, ORDINAL_FIELDS_END - 1);
// Bit temps.
SetFieldValues(*this, kernel_info,
&GetBitTempString, &BooleanToValue,
BIT_TEMPS_BEGIN, BIT_TEMPS_END - 1);
return kernel_info;
}
base::ListValue* EntryKernelMutationMapToValue(
const EntryKernelMutationMap& mutations) {
base::ListValue* list = new base::ListValue();
for (EntryKernelMutationMap::const_iterator it = mutations.begin();
it != mutations.end(); ++it) {
list->Append(EntryKernelMutationToValue(it->second));
}
return list;
}
base::DictionaryValue* EntryKernelMutationToValue(
const EntryKernelMutation& mutation) {
base::DictionaryValue* dict = new base::DictionaryValue();
dict->Set("original", mutation.original.ToValue(NULL));
dict->Set("mutated", mutation.mutated.ToValue(NULL));
return dict;
}
} // namespace syncer
} // namespace syncable
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