| /* |
| * 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 "bindings/v8/IDBBindingUtilities.h" |
| |
| #include "V8IDBKeyRange.h" |
| #include "bindings/v8/DOMRequestState.h" |
| #include "bindings/v8/SerializedScriptValue.h" |
| #include "bindings/v8/V8Binding.h" |
| #include "core/platform/SharedBuffer.h" |
| #include "modules/indexeddb/IDBKey.h" |
| #include "modules/indexeddb/IDBKeyPath.h" |
| #include "modules/indexeddb/IDBKeyRange.h" |
| #include "modules/indexeddb/IDBTracing.h" |
| #include "wtf/MathExtras.h" |
| #include "wtf/Vector.h" |
| |
| namespace WebCore { |
| |
| static v8::Handle<v8::Value> idbKeyToV8Value(IDBKey* key, v8::Isolate* isolate) |
| { |
| if (!key) { |
| // This should be undefined, not null. |
| // Spec: http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#idl-def-IDBKeyRange |
| return v8Undefined(); |
| } |
| |
| switch (key->type()) { |
| case IDBKey::InvalidType: |
| case IDBKey::MinType: |
| ASSERT_NOT_REACHED(); |
| return v8Undefined(); |
| case IDBKey::NumberType: |
| return v8::Number::New(isolate, key->number()); |
| case IDBKey::StringType: |
| return v8String(key->string(), isolate); |
| case IDBKey::DateType: |
| return v8::Date::New(key->date()); |
| case IDBKey::ArrayType: |
| { |
| v8::Local<v8::Array> array = v8::Array::New(key->array().size()); |
| for (size_t i = 0; i < key->array().size(); ++i) |
| array->Set(i, idbKeyToV8Value(key->array()[i].get(), isolate)); |
| return array; |
| } |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return v8Undefined(); |
| } |
| |
| static const size_t maximumDepth = 2000; |
| |
| static PassRefPtr<IDBKey> createIDBKeyFromValue(v8::Handle<v8::Value> value, Vector<v8::Handle<v8::Array> >& stack, v8::Isolate* isolate) |
| { |
| if (value->IsNumber() && !std::isnan(value->NumberValue())) |
| return IDBKey::createNumber(value->NumberValue()); |
| if (value->IsString()) |
| return IDBKey::createString(toWebCoreString(value.As<v8::String>())); |
| if (value->IsDate() && !std::isnan(value->NumberValue())) |
| 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, isolate)); |
| RefPtr<IDBKey> subkey = createIDBKeyFromValue(item, stack, isolate); |
| if (!subkey) |
| subkeys.append(IDBKey::createInvalid()); |
| else |
| subkeys.append(subkey); |
| } |
| |
| stack.removeLast(); |
| return IDBKey::createArray(subkeys); |
| } |
| return 0; |
| } |
| |
| static PassRefPtr<IDBKey> createIDBKeyFromValue(v8::Handle<v8::Value> value, v8::Isolate* isolate) |
| { |
| Vector<v8::Handle<v8::Array> > stack; |
| RefPtr<IDBKey> key = createIDBKeyFromValue(value, stack, isolate); |
| if (key) |
| return key; |
| return IDBKey::createInvalid(); |
| } |
| |
| template<typename T> |
| static 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> |
| static bool setValue(v8::Handle<v8::Value>& v8Object, T indexOrName, const v8::Handle<v8::Value>& v8Value) |
| { |
| v8::Local<v8::Object> object = v8Object->ToObject(); |
| return object->Set(indexOrName, v8Value); |
| } |
| |
| static bool get(v8::Handle<v8::Value>& object, const String& keyPathElement, v8::Handle<v8::Value>& result, v8::Isolate* isolate) |
| { |
| if (object->IsString() && keyPathElement == "length") { |
| int32_t length = v8::Handle<v8::String>::Cast(object)->Length(); |
| result = v8::Number::New(isolate, length); |
| return true; |
| } |
| return object->IsObject() && getValueFrom(v8String(keyPathElement, isolate), result); |
| } |
| |
| static bool canSet(v8::Handle<v8::Value>& object, const String& keyPathElement) |
| { |
| return object->IsObject(); |
| } |
| |
| static bool set(v8::Handle<v8::Value>& object, const String& keyPathElement, const v8::Handle<v8::Value>& v8Value, v8::Isolate* isolate) |
| { |
| return canSet(object, keyPathElement) && setValue(object, v8String(keyPathElement, isolate), v8Value); |
| } |
| |
| static v8::Handle<v8::Value> getNthValueOnKeyPath(v8::Handle<v8::Value>& rootValue, const Vector<String>& keyPathElements, size_t index, v8::Isolate* isolate) |
| { |
| v8::Handle<v8::Value> currentValue(rootValue); |
| ASSERT(index <= keyPathElements.size()); |
| for (size_t i = 0; i < index; ++i) { |
| v8::Handle<v8::Value> parentValue(currentValue); |
| if (!get(parentValue, keyPathElements[i], currentValue, isolate)) |
| return v8Undefined(); |
| } |
| |
| return currentValue; |
| } |
| |
| static bool canInjectNthValueOnKeyPath(v8::Handle<v8::Value>& rootValue, const Vector<String>& keyPathElements, size_t index, v8::Isolate* isolate) |
| { |
| if (!rootValue->IsObject()) |
| return false; |
| |
| v8::Handle<v8::Value> currentValue(rootValue); |
| |
| ASSERT(index <= keyPathElements.size()); |
| for (size_t i = 0; i < index; ++i) { |
| v8::Handle<v8::Value> parentValue(currentValue); |
| const String& keyPathElement = keyPathElements[i]; |
| if (!get(parentValue, keyPathElement, currentValue, isolate)) |
| return canSet(parentValue, keyPathElement); |
| } |
| return true; |
| } |
| |
| |
| static v8::Handle<v8::Value> ensureNthValueOnKeyPath(v8::Handle<v8::Value>& rootValue, const Vector<String>& keyPathElements, size_t index, v8::Isolate* isolate) |
| { |
| v8::Handle<v8::Value> currentValue(rootValue); |
| |
| ASSERT(index <= keyPathElements.size()); |
| for (size_t i = 0; i < index; ++i) { |
| v8::Handle<v8::Value> parentValue(currentValue); |
| const String& keyPathElement = keyPathElements[i]; |
| if (!get(parentValue, keyPathElement, currentValue, isolate)) { |
| v8::Handle<v8::Object> object = v8::Object::New(); |
| if (!set(parentValue, keyPathElement, object, isolate)) |
| return v8Undefined(); |
| currentValue = object; |
| } |
| } |
| |
| return currentValue; |
| } |
| |
| static PassRefPtr<IDBKey> createIDBKeyFromScriptValueAndKeyPath(const ScriptValue& value, const String& keyPath, v8::Isolate* isolate) |
| { |
| Vector<String> keyPathElements; |
| IDBKeyPathParseError error; |
| IDBParseKeyPath(keyPath, keyPathElements, error); |
| ASSERT(error == IDBKeyPathParseErrorNone); |
| ASSERT(v8::Context::InContext()); |
| |
| v8::HandleScope handleScope(isolate); |
| v8::Handle<v8::Value> v8Value(value.v8Value()); |
| v8::Handle<v8::Value> v8Key(getNthValueOnKeyPath(v8Value, keyPathElements, keyPathElements.size(), isolate)); |
| if (v8Key.IsEmpty()) |
| return 0; |
| return createIDBKeyFromValue(v8Key, isolate); |
| } |
| |
| PassRefPtr<IDBKey> createIDBKeyFromScriptValueAndKeyPath(DOMRequestState* state, const ScriptValue& value, const IDBKeyPath& keyPath) |
| { |
| IDB_TRACE("createIDBKeyFromScriptValueAndKeyPath"); |
| ASSERT(!keyPath.isNull()); |
| ASSERT(v8::Context::InContext()); |
| |
| |
| v8::Isolate* isolate = state ? state->context()->GetIsolate() : v8::Isolate::GetCurrent(); |
| v8::HandleScope handleScope(isolate); |
| if (keyPath.type() == IDBKeyPath::ArrayType) { |
| IDBKey::KeyArray result; |
| const Vector<String>& array = keyPath.array(); |
| for (size_t i = 0; i < array.size(); ++i) { |
| RefPtr<IDBKey> key = createIDBKeyFromScriptValueAndKeyPath(value, array[i], isolate); |
| if (!key) |
| return 0; |
| result.append(key); |
| } |
| return IDBKey::createArray(result); |
| } |
| |
| ASSERT(keyPath.type() == IDBKeyPath::StringType); |
| return createIDBKeyFromScriptValueAndKeyPath(value, keyPath.string(), isolate); |
| } |
| |
| ScriptValue deserializeIDBValue(DOMRequestState* state, PassRefPtr<SerializedScriptValue> prpValue) |
| { |
| ASSERT(v8::Context::InContext()); |
| v8::Isolate* isolate = state ? state->context()->GetIsolate() : v8::Isolate::GetCurrent(); |
| v8::HandleScope handleScope(isolate); |
| RefPtr<SerializedScriptValue> serializedValue = prpValue; |
| if (serializedValue) |
| return ScriptValue(serializedValue->deserialize(), isolate); |
| return ScriptValue(v8::Null(isolate), isolate); |
| } |
| |
| ScriptValue deserializeIDBValueBuffer(DOMRequestState* state, PassRefPtr<SharedBuffer> prpBuffer) |
| { |
| ASSERT(v8::Context::InContext()); |
| v8::Isolate* isolate = state ? state->context()->GetIsolate() : v8::Isolate::GetCurrent(); |
| v8::HandleScope handleScope(isolate); |
| RefPtr<SharedBuffer> buffer = prpBuffer; |
| if (buffer) { |
| // FIXME: The extra copy here can be eliminated by allowing SerializedScriptValue to take a raw const char* or const uint8_t*. |
| Vector<uint8_t> value; |
| value.append(buffer->data(), buffer->size()); |
| RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValue::createFromWireBytes(value); |
| return ScriptValue(serializedValue->deserialize(), isolate); |
| } |
| return ScriptValue(v8::Null(isolate), isolate); |
| } |
| |
| bool injectIDBKeyIntoScriptValue(DOMRequestState* state, PassRefPtr<IDBKey> key, ScriptValue& value, const IDBKeyPath& keyPath) |
| { |
| IDB_TRACE("injectIDBKeyIntoScriptValue"); |
| ASSERT(v8::Context::InContext()); |
| |
| ASSERT(keyPath.type() == IDBKeyPath::StringType); |
| Vector<String> keyPathElements; |
| IDBKeyPathParseError error; |
| IDBParseKeyPath(keyPath.string(), keyPathElements, error); |
| ASSERT(error == IDBKeyPathParseErrorNone); |
| |
| if (!keyPathElements.size()) |
| return 0; |
| |
| v8::Isolate* isolate = state ? state->context()->GetIsolate() : v8::Isolate::GetCurrent(); |
| v8::HandleScope handleScope(isolate); |
| v8::Handle<v8::Value> v8Value(value.v8Value()); |
| v8::Handle<v8::Value> parent(ensureNthValueOnKeyPath(v8Value, keyPathElements, keyPathElements.size() - 1, isolate)); |
| if (parent.IsEmpty()) |
| return false; |
| |
| if (!set(parent, keyPathElements.last(), idbKeyToV8Value(key.get(), isolate), isolate)) |
| return false; |
| |
| return true; |
| } |
| |
| bool canInjectIDBKeyIntoScriptValue(DOMRequestState* state, const ScriptValue& scriptValue, const IDBKeyPath& keyPath) |
| { |
| IDB_TRACE("canInjectIDBKeyIntoScriptValue"); |
| ASSERT(keyPath.type() == IDBKeyPath::StringType); |
| Vector<String> keyPathElements; |
| IDBKeyPathParseError error; |
| IDBParseKeyPath(keyPath.string(), keyPathElements, error); |
| ASSERT(error == IDBKeyPathParseErrorNone); |
| |
| if (!keyPathElements.size()) |
| return false; |
| |
| v8::Handle<v8::Value> v8Value(scriptValue.v8Value()); |
| return canInjectNthValueOnKeyPath(v8Value, keyPathElements, keyPathElements.size() - 1, state->context()->GetIsolate()); |
| } |
| |
| ScriptValue idbKeyToScriptValue(DOMRequestState* state, PassRefPtr<IDBKey> key) |
| { |
| ASSERT(v8::Context::InContext()); |
| v8::Isolate* isolate = state ? state->context()->GetIsolate() : v8::Isolate::GetCurrent(); |
| v8::HandleScope handleScope(isolate); |
| v8::Handle<v8::Value> v8Value(idbKeyToV8Value(key.get(), state->context()->GetIsolate())); |
| return ScriptValue(v8Value, isolate); |
| } |
| |
| PassRefPtr<IDBKey> scriptValueToIDBKey(DOMRequestState* state, const ScriptValue& scriptValue) |
| { |
| ASSERT(v8::Context::InContext()); |
| v8::Isolate* isolate = state ? state->context()->GetIsolate() : v8::Isolate::GetCurrent(); |
| v8::HandleScope handleScope(isolate); |
| v8::Handle<v8::Value> v8Value(scriptValue.v8Value()); |
| return createIDBKeyFromValue(v8Value, isolate); |
| } |
| |
| PassRefPtr<IDBKeyRange> scriptValueToIDBKeyRange(DOMRequestState* state, const ScriptValue& scriptValue) |
| { |
| v8::Isolate* isolate = state ? state->context()->GetIsolate() : v8::Isolate::GetCurrent(); |
| v8::HandleScope handleScope(isolate); |
| v8::Handle<v8::Value> value(scriptValue.v8Value()); |
| if (V8IDBKeyRange::HasInstance(value, isolate, worldType(isolate))) |
| return V8IDBKeyRange::toNative(value.As<v8::Object>()); |
| return 0; |
| } |
| |
| } // namespace WebCore |