MimeResponseSink.h

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

#ifndef ALEXA_CLIENT_SDK_ACL_INCLUDE_ACL_TRANSPORT_MIMERESPONSESINK_H_
#define ALEXA_CLIENT_SDK_ACL_INCLUDE_ACL_TRANSPORT_MIMERESPONSESINK_H_

#include <memory>

#include <AVSCommon/AVS/Attachment/AttachmentManagerInterface.h>
#include <AVSCommon/AVS/Attachment/AttachmentWriter.h>
#include <AVSCommon/Utils/HTTP2/HTTP2MimeResponseSinkInterface.h>

#include "ACL/Transport/MessageConsumerInterface.h"
#include "ACL/Transport/MimeResponseStatusHandlerInterface.h"

namespace alexaClientSDK {
namespace acl {

class MimeResponseSink : public avsCommon::utils::http2::HTTP2MimeResponseSinkInterface {
public:
    MimeResponseSink(
        std::shared_ptr<MimeResponseStatusHandlerInterface> handler,
        std::shared_ptr<MessageConsumerInterface> messageConsumer,
        std::shared_ptr<avsCommon::avs::attachment::AttachmentManagerInterface> attachmentManager,
        std::string attachmentContextId);

    virtual ~MimeResponseSink() = default;

    bool onReceiveResponseCode(long responseCode) override;
    bool onReceiveHeaderLine(const std::string& line) override;
    bool onBeginMimePart(const std::multimap<std::string, std::string>& headers) override;
    avsCommon::utils::http2::HTTP2ReceiveDataStatus onReceiveMimeData(const char* bytes, size_t size) override;
    bool onEndMimePart() override;
    avsCommon::utils::http2::HTTP2ReceiveDataStatus onReceiveNonMimeData(const char* bytes, size_t size) override;
    void onResponseFinished(avsCommon::utils::http2::HTTP2ResponseFinishedStatus status) override;

private:
    enum ContentType {
        NONE,
        JSON,
        ATTACHMENT
    };

    avsCommon::utils::http2::HTTP2ReceiveDataStatus writeToAttachment(const char* bytes, size_t size);

    std::shared_ptr<MimeResponseStatusHandlerInterface> m_handler;

    std::shared_ptr<MessageConsumerInterface> m_messageConsumer;

    std::shared_ptr<avsCommon::avs::attachment::AttachmentManagerInterface> m_attachmentManager;

    ContentType m_contentType;

    std::string m_attachmentContextId;

    std::string m_directiveBeingReceived;

    std::string m_attachmentIdBeingReceived;

    std::unique_ptr<avsCommon::avs::attachment::AttachmentWriter> m_attachmentWriter;

    std::string m_nonMimeBody;
};

}  // namespace acl
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_ACL_INCLUDE_ACL_TRANSPORT_MIMERESPONSESINK_H_