| /* |
| * Copyright (C) 2011 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "IDBBindingUtilities.h" |
| |
| #if ENABLE(INDEXED_DATABASE) |
| |
| #include "IDBDatabaseException.h" |
| #include "IDBKey.h" |
| #include "IDBKeyPath.h" |
| #include "SerializedScriptValue.h" |
| #include "V8Binding.h" |
| #include "V8IDBKey.h" |
| #include <wtf/Vector.h> |
| |
| namespace WebCore { |
| |
| static const size_t maximumDepth = 2000; |
| |
| static PassRefPtr<IDBKey> createIDBKeyFromValue(v8::Handle<v8::Value> value, Vector<v8::Handle<v8::Array> >& stack) |
| { |
| if (value->IsNumber() && !isnan(value->NumberValue())) |
| return IDBKey::createNumber(value->NumberValue()); |
| if (value->IsString()) |
| return IDBKey::createString(v8ValueToWebCoreString(value)); |
| if (value->IsDate()) |
| return IDBKey::createDate(value->NumberValue()); |
| if (value->IsArray()) { |
| v8::Handle<v8::Array> array = v8::Handle<v8::Array>::Cast(value); |
| |
| if (stack.contains(array)) |
| return 0; |
| if (stack.size() >= maximumDepth) |
| return 0; |
| stack.append(array); |
| |
| IDBKey::KeyArray subkeys; |
| uint32_t length = array->Length(); |
| for (uint32_t i = 0; i < length; ++i) { |
| v8::Local<v8::Value> item = array->Get(v8::Int32::New(i)); |
| RefPtr<IDBKey> subkey = createIDBKeyFromValue(item, stack); |
| if (!subkey) |
| return 0; |
| subkeys.append(subkey); |
| } |
| |
| stack.removeLast(); |
| return IDBKey::createArray(subkeys); |
| } |
| return 0; |
| } |
| |
| PassRefPtr<IDBKey> createIDBKeyFromValue(v8::Handle<v8::Value> value) |
| { |
| Vector<v8::Handle<v8::Array> > stack; |
| RefPtr<IDBKey> key = createIDBKeyFromValue(value, stack); |
| if (key) |
| return key; |
| return IDBKey::createInvalid(); |
| } |
| |
| namespace { |
| |
| template<typename T> |
| bool getValueFrom(T indexOrName, v8::Handle<v8::Value>& v8Value) |
| { |
| v8::Local<v8::Object> object = v8Value->ToObject(); |
| if (!object->Has(indexOrName)) |
| return false; |
| v8Value = object->Get(indexOrName); |
| return true; |
| } |
| |
| template<typename T> |
| bool setValue(v8::Handle<v8::Value>& v8Object, T indexOrName, const v8::Handle<v8::Value>& v8Value) |
| { |
| v8::Local<v8::Object> object = v8Object->ToObject(); |
| ASSERT(!object->Has(indexOrName)); |
| return object->Set(indexOrName, v8Value); |
| } |
| |
| bool get(v8::Handle<v8::Value>& object, const String& keyPathElement) |
| { |
| return object->IsObject() && getValueFrom(v8String(keyPathElement), object); |
| } |
| |
| bool set(v8::Handle<v8::Value>& object, const String& keyPathElement, const v8::Handle<v8::Value>& v8Value) |
| { |
| return object->IsObject() && setValue(object, v8String(keyPathElement), v8Value); |
| } |
| |
| v8::Handle<v8::Value> getNthValueOnKeyPath(v8::Handle<v8::Value>& rootValue, const Vector<String>& keyPathElements, size_t index) |
| { |
| v8::Handle<v8::Value> currentValue(rootValue); |
| |
| ASSERT(index <= keyPathElements.size()); |
| for (size_t i = 0; i < index; ++i) { |
| if (!get(currentValue, keyPathElements[i])) |
| return v8::Handle<v8::Value>(); |
| } |
| |
| return currentValue; |
| } |
| |
| } // anonymous namespace |
| |
| PassRefPtr<IDBKey> createIDBKeyFromSerializedValueAndKeyPath(PassRefPtr<SerializedScriptValue> value, const Vector<String>& keyPath) |
| { |
| V8LocalContext localContext; |
| v8::Handle<v8::Value> v8Value(value->deserialize()); |
| v8::Handle<v8::Value> v8Key(getNthValueOnKeyPath(v8Value, keyPath, keyPath.size())); |
| if (v8Key.IsEmpty()) |
| return 0; |
| return createIDBKeyFromValue(v8Key); |
| } |
| |
| PassRefPtr<SerializedScriptValue> injectIDBKeyIntoSerializedValue(PassRefPtr<IDBKey> key, PassRefPtr<SerializedScriptValue> value, const Vector<String>& keyPath) |
| { |
| V8LocalContext localContext; |
| if (!keyPath.size()) |
| return 0; |
| |
| v8::Handle<v8::Value> v8Value(value->deserialize()); |
| v8::Handle<v8::Value> parent(getNthValueOnKeyPath(v8Value, keyPath, keyPath.size() - 1)); |
| if (parent.IsEmpty()) |
| return 0; |
| |
| if (!set(parent, keyPath.last(), toV8(key.get()))) |
| return 0; |
| |
| return SerializedScriptValue::create(v8Value); |
| } |
| |
| } // namespace WebCore |
| |
| #endif |