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#pragma once
#include <Server/HTTP/HTTPResponse.h>
#include <Poco/Net/HTTPServerSession.h>
#include <Poco/Net/HTTPResponse.h>
#include <memory>
namespace DB
{
class HTTPServerRequest;
class HTTPServerResponse : public HTTPResponse
{
public:
explicit HTTPServerResponse(Poco::Net::HTTPServerSession & session);
void sendContinue(); /// Sends a 100 Continue response to the client.
/// Sends the response header to the client and
/// returns an output stream for sending the
/// response body.
///
/// Must not be called after beginSend(), sendFile(), sendBuffer()
/// or redirect() has been called.
std::shared_ptr<std::ostream> send(); /// TODO: use some WriteBuffer implementation here.
/// Sends the response headers to the client
/// but do not finish headers with \r\n,
/// allowing to continue sending additional header fields.
///
/// Must not be called after send(), sendFile(), sendBuffer()
/// or redirect() has been called.
std::pair<std::shared_ptr<std::ostream>, std::shared_ptr<std::ostream>> beginSend(); /// TODO: use some WriteBuffer implementation here.
/// Sends the response header to the client, followed
/// by the contents of the given buffer.
///
/// The Content-Length header of the response is set
/// to length and chunked transfer encoding is disabled.
///
/// If both the HTTP message header and body (from the
/// given buffer) fit into one single network packet, the
/// complete response can be sent in one network packet.
///
/// Must not be called after send(), sendFile()
/// or redirect() has been called.
void sendBuffer(const void * pBuffer, std::size_t length); /// FIXME: do we need this one?
void requireAuthentication(const std::string & realm);
/// Sets the status code to 401 (Unauthorized)
/// and sets the "WWW-Authenticate" header field
/// according to the given realm.
/// Returns true if the response (header) has been sent.
bool sent() const { return !!stream; }
void attachRequest(HTTPServerRequest * request_) { request = request_; }
private:
Poco::Net::HTTPServerSession & session;
HTTPServerRequest * request = nullptr;
std::shared_ptr<std::ostream> stream;
std::shared_ptr<std::ostream> header_stream;
};
}
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