| /* |
| * Copyright (C) 2013 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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 "modules/crypto/CryptoOperation.h" |
| |
| #include "bindings/v8/ExceptionState.h" |
| #include "bindings/v8/custom/V8ArrayBufferCustom.h" // MUST precede ScriptPromiseResolver for compilation to work. |
| #include "bindings/v8/ScriptPromiseResolver.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "modules/crypto/Algorithm.h" |
| #include "public/platform/WebArrayBuffer.h" |
| #include "public/platform/WebCrypto.h" |
| #include "wtf/ArrayBuffer.h" |
| #include "wtf/ArrayBufferView.h" |
| |
| namespace WebCore { |
| |
| CryptoOperation::~CryptoOperation() |
| { |
| abortImpl(); |
| ASSERT(!m_impl); |
| } |
| |
| PassRefPtr<CryptoOperation> CryptoOperation::create(const WebKit::WebCryptoAlgorithm& algorithm, ExceptionState* es) |
| { |
| return adoptRef(new CryptoOperation(algorithm, es)); |
| } |
| |
| CryptoOperation::CryptoOperation(const WebKit::WebCryptoAlgorithm& algorithm, ExceptionState* es) |
| : m_algorithm(algorithm) |
| , m_impl(0) |
| , m_exceptionState(es) |
| , m_state(Initializing) |
| { |
| ASSERT(es); |
| ScriptWrappable::init(this); |
| } |
| |
| CryptoOperation* CryptoOperation::process(ArrayBuffer* data) |
| { |
| process(static_cast<unsigned char*>(data->data()), data->byteLength()); |
| return this; |
| } |
| |
| CryptoOperation* CryptoOperation::process(ArrayBufferView* data) |
| { |
| process(static_cast<unsigned char*>(data->baseAddress()), data->byteLength()); |
| return this; |
| } |
| |
| ScriptObject CryptoOperation::finish() |
| { |
| switch (m_state) { |
| case Initializing: |
| ASSERT_NOT_REACHED(); |
| return ScriptObject(); |
| case Processing: |
| m_state = Finishing; |
| // NOTE: The following line can result in re-entrancy to |this| |
| m_impl->finish(); |
| break; |
| case Finishing: |
| // Calling finish() twice is a no-op. |
| break; |
| case Done: |
| // Calling finish() after already complete is a no-op. |
| ASSERT(!m_impl); |
| break; |
| } |
| |
| return promiseResolver()->promise(); |
| } |
| |
| ScriptObject CryptoOperation::abort() |
| { |
| if (abortImpl()) |
| promiseResolver()->reject(ScriptValue::createNull()); |
| return promiseResolver()->promise(); |
| } |
| |
| Algorithm* CryptoOperation::algorithm() |
| { |
| if (!m_algorithmNode) |
| m_algorithmNode = Algorithm::create(m_algorithm); |
| return m_algorithmNode.get(); |
| } |
| |
| void CryptoOperation::initializationFailed() |
| { |
| ASSERT(m_state == Initializing); |
| |
| m_exceptionState->throwDOMException(NotSupportedError); |
| |
| m_exceptionState = 0; |
| m_state = Done; |
| } |
| |
| void CryptoOperation::initializationSucceded(WebKit::WebCryptoOperation* operationImpl) |
| { |
| ASSERT(m_state == Initializing); |
| ASSERT(operationImpl); |
| ASSERT(!m_impl); |
| |
| m_exceptionState = 0; |
| m_impl = operationImpl; |
| m_state = Processing; |
| } |
| |
| void CryptoOperation::completeWithError() |
| { |
| ASSERT(m_state == Processing || m_state == Finishing); |
| |
| m_impl = 0; |
| m_state = Done; |
| |
| promiseResolver()->reject(ScriptValue::createNull()); |
| } |
| |
| void CryptoOperation::completeWithArrayBuffer(const WebKit::WebArrayBuffer& buffer) |
| { |
| ASSERT(m_state == Processing || m_state == Finishing); |
| |
| m_impl = 0; |
| m_state = Done; |
| |
| promiseResolver()->fulfill(PassRefPtr<ArrayBuffer>(buffer)); |
| } |
| |
| void CryptoOperation::process(const unsigned char* bytes, size_t size) |
| { |
| switch (m_state) { |
| case Initializing: |
| ASSERT_NOT_REACHED(); |
| case Processing: |
| m_impl->process(bytes, size); |
| break; |
| case Finishing: |
| case Done: |
| return; |
| } |
| } |
| |
| bool CryptoOperation::abortImpl() |
| { |
| switch (m_state) { |
| case Initializing: |
| ASSERT_NOT_REACHED(); |
| break; |
| case Processing: |
| case Finishing: |
| // This will cause m_impl to be deleted. |
| m_state = Done; |
| m_impl->abort(); |
| m_impl = 0; |
| return true; |
| case Done: |
| ASSERT(!m_impl); |
| break; |
| } |
| |
| return false; |
| } |
| |
| ScriptPromiseResolver* CryptoOperation::promiseResolver() |
| { |
| if (!m_promiseResolver) |
| m_promiseResolver = ScriptPromiseResolver::create(); |
| return m_promiseResolver.get(); |
| } |
| |
| } // namespace WebCore |