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arangodb/lib/Rest/HttpResponse.h

124 lines
3.8 KiB
C++

////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
/// @author Achim Brandt
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGODB_REST_HTTP_RESPONSE_H
#define ARANGODB_REST_HTTP_RESPONSE_H 1
#include "Rest/GeneralResponse.h"
#include "Basics/StringBuffer.h"
namespace arangodb {
class RestBatchHandler;
namespace rest {
class HttpCommTask;
class GeneralCommTask;
} // namespace rest
class HttpResponse : public GeneralResponse {
friend class rest::HttpCommTask;
friend class rest::GeneralCommTask;
friend class RestBatchHandler; // TODO must be removed
public:
static bool HIDE_PRODUCT_HEADER;
public:
explicit HttpResponse(ResponseCode code, basics::StringBuffer* leased);
~HttpResponse();
public:
bool isHeadResponse() const { return _isHeadResponse; }
public:
void setCookie(std::string const& name, std::string const& value,
int lifeTimeSeconds, std::string const& path,
std::string const& domain, bool secure, bool httpOnly);
// In case of HEAD request, no body must be defined. However, the response
// needs to know the size of body.
void headResponse(size_t);
// Returns a reference to the body. This reference is only valid as long as
// http response exists. You can add data to the body by appending
// information to the string buffer. Note that adding data to the body
// invalidates any previously returned header. You must call header
// again.
basics::StringBuffer& body() {
TRI_ASSERT(_body);
return *_body;
}
size_t bodySize() const;
// you should call writeHeader only after the body has been created
void writeHeader(basics::StringBuffer*); // override;
public:
void reset(ResponseCode code) override final;
void addPayload(VPackSlice const&, arangodb::velocypack::Options const* = nullptr,
bool resolve_externals = true) override;
void addPayload(VPackBuffer<uint8_t>&&, arangodb::velocypack::Options const* = nullptr,
bool resolve_externals = true) override;
bool isResponseEmpty() const override {
return _body->empty();
}
/// used for head-responses
bool setGenerateBody(bool generateBody) override final {
return _generateBody = generateBody;
}
int reservePayload(std::size_t size) override { return _body->reserve(size); }
arangodb::Endpoint::TransportType transportType() override {
return arangodb::Endpoint::TransportType::HTTP;
}
private:
// the body must already be set. deflate is then run on the existing body
int deflate(size_t size = 16384) override {
return _body->deflate(size);
}
std::unique_ptr<basics::StringBuffer> stealBody() {
std::unique_ptr<basics::StringBuffer> bb(_body);
_body = nullptr;
return bb;
}
private:
bool _isHeadResponse;
std::vector<std::string> _cookies;
basics::StringBuffer* _body;
size_t _bodySize;
void addPayloadInternal(velocypack::Slice, size_t, velocypack::Options const*, bool);
};
} // namespace arangodb
#endif