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117 lines
3.2 KiB
C++
117 lines
3.2 KiB
C++
#ifndef XRPL_SERVER_SESSION_H_INCLUDED
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#define XRPL_SERVER_SESSION_H_INCLUDED
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#include <xrpl/beast/net/IPEndpoint.h>
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#include <xrpl/beast/utility/Journal.h>
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#include <xrpl/server/WSSession.h>
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#include <xrpl/server/Writer.h>
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#include <boost/beast/http/message.hpp>
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#include <functional>
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#include <memory>
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#include <ostream>
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#include <vector>
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namespace ripple {
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/** Persistent state information for a connection session.
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These values are preserved between calls for efficiency.
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Some fields are input parameters, some are output parameters,
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and all only become defined during specific callbacks.
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*/
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class Session
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{
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public:
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Session() = default;
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Session(Session const&) = delete;
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Session&
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operator=(Session const&) = delete;
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virtual ~Session() = default;
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/** A user-definable pointer.
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The initial value is always zero.
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Changes to the value are persisted between calls.
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*/
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void* tag = nullptr;
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/** Returns the Journal to use for logging. */
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virtual beast::Journal
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journal() = 0;
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/** Returns the Port settings for this connection. */
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virtual Port const&
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port() = 0;
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/** Returns the remote address of the connection. */
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virtual beast::IP::Endpoint
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remoteAddress() = 0;
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/** Returns the current HTTP request. */
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virtual http_request_type&
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request() = 0;
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/** Send a copy of data asynchronously. */
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/** @{ */
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void
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write(std::string const& s)
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{
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if (!s.empty())
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write(&s[0], std::distance(s.begin(), s.end()));
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}
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template <typename BufferSequence>
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void
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write(BufferSequence const& buffers)
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{
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for (typename BufferSequence::const_iterator iter(buffers.begin());
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iter != buffers.end();
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++iter)
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{
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typename BufferSequence::value_type const& buffer(*iter);
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write(buffer.data(), boost::asio::buffer_size(buffer));
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}
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}
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virtual void
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write(void const* buffer, std::size_t bytes) = 0;
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virtual void
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write(std::shared_ptr<Writer> const& writer, bool keep_alive) = 0;
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/** @} */
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/** Detach the session.
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This holds the session open so that the response can be sent
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asynchronously. Calls to io_context::run made by the server
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will not return until all detached sessions are closed.
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*/
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virtual std::shared_ptr<Session>
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detach() = 0;
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/** Indicate that the response is complete.
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The handler should call this when it has completed writing
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the response. If Keep-Alive is indicated on the connection,
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this will trigger a read for the next request; else, the
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connection will be closed when all remaining data has been sent.
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*/
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virtual void
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complete() = 0;
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/** Close the session.
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This will be performed asynchronously. The session will be
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closed gracefully after all pending writes have completed.
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@param graceful `true` to wait until all data has finished sending.
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*/
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virtual void
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close(bool graceful) = 0;
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/** Convert the connection to WebSocket. */
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virtual std::shared_ptr<WSSession>
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websocketUpgrade() = 0;
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};
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} // namespace ripple
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#endif
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