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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
// 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 the Andrey N. Sabelnikov 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 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.
//
#ifndef _HTTP_SERVER_H_
#define _HTTP_SERVER_H_
#include <boost/optional/optional.hpp>
#include <string>
#include "net_utils_base.h"
#include "http_auth.h"
#include "http_base.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "net.http"
namespace epee
{
namespace net_utils
{
namespace http
{
/************************************************************************/
/* */
/************************************************************************/
struct http_server_config
{
std::string m_folder;
std::vector<std::string> m_access_control_origins;
boost::optional<login> m_user;
size_t m_max_content_length{std::numeric_limits<size_t>::max()};
critical_section m_lock;
};
/************************************************************************/
/* */
/************************************************************************/
template<class t_connection_context = net_utils::connection_context_base>
class simple_http_connection_handler
{
public:
typedef t_connection_context connection_context;//t_connection_context net_utils::connection_context_base connection_context;
typedef http_server_config config_type;
simple_http_connection_handler(i_service_endpoint* psnd_hndlr, config_type& config, t_connection_context& conn_context);
virtual ~simple_http_connection_handler(){}
bool release_protocol()
{
return true;
}
virtual bool thread_init()
{
return true;
}
virtual bool thread_deinit()
{
return true;
}
bool after_init_connection()
{
return true;
}
virtual bool handle_recv(const void* ptr, size_t cb);
virtual bool handle_request(const http::http_request_info& query_info, http_response_info& response);
private:
enum machine_state{
http_state_retriving_comand_line,
http_state_retriving_header,
http_state_retriving_body,
http_state_connection_close,
http_state_error
};
enum body_transfer_type{
http_body_transfer_chunked,
http_body_transfer_measure,//mean "Content-Length" valid
http_body_transfer_chunked_instead_measure,
http_body_transfer_connection_close,
http_body_transfer_multipart,
http_body_transfer_undefined
};
bool handle_buff_in(std::string& buf);
bool analize_cached_request_header_and_invoke_state(size_t pos);
bool handle_invoke_query_line();
bool parse_cached_header(http_header_info& body_info, const std::string& m_cache_to_process, size_t pos);
std::string::size_type match_end_of_header(const std::string& buf);
bool get_len_from_content_lenght(const std::string& str, size_t& len);
bool handle_retriving_query_body();
bool handle_query_measure();
bool set_ready_state();
bool slash_to_back_slash(std::string& str);
std::string get_file_mime_tipe(const std::string& path);
std::string get_response_header(const http_response_info& response);
//major function
inline bool handle_request_and_send_response(const http::http_request_info& query_info);
std::string get_not_found_response_body(const std::string& URI);
std::string m_root_path;
std::string m_cache;
machine_state m_state;
body_transfer_type m_body_transfer_type;
bool m_is_stop_handling;
http::http_request_info m_query_info;
size_t m_len_summary, m_len_remain;
config_type& m_config;
bool m_want_close;
size_t m_newlines;
size_t m_bytes_read;
protected:
i_service_endpoint* m_psnd_hndlr;
t_connection_context& m_conn_context;
};
template<class t_connection_context>
struct i_http_server_handler
{
virtual ~i_http_server_handler(){}
virtual bool handle_http_request(const http_request_info& query_info,
http_response_info& response,
t_connection_context& m_conn_context) = 0;
virtual bool init_server_thread(){return true;}
virtual bool deinit_server_thread(){return true;}
};
template<class t_connection_context>
struct custum_handler_config: public http_server_config
{
i_http_server_handler<t_connection_context>* m_phandler;
std::function<void(size_t, uint8_t*)> rng;
};
/************************************************************************/
/* */
/************************************************************************/
template<class t_connection_context = net_utils::connection_context_base>
class http_custom_handler: public simple_http_connection_handler<t_connection_context>
{
public:
typedef custum_handler_config<t_connection_context> config_type;
http_custom_handler(i_service_endpoint* psnd_hndlr, config_type& config, t_connection_context& conn_context)
: simple_http_connection_handler<t_connection_context>(psnd_hndlr, config, conn_context),
m_config(config),
m_auth(m_config.m_user ? http_server_auth{*m_config.m_user, config.rng} : http_server_auth{})
{}
inline bool handle_request(const http_request_info& query_info, http_response_info& response)
{
CHECK_AND_ASSERT_MES(m_config.m_phandler, false, "m_config.m_phandler is NULL!!!!");
const auto auth_response = m_auth.get_response(query_info);
if (auth_response)
{
response = std::move(*auth_response);
return true;
}
//fill with default values
response.m_mime_tipe = "text/plain";
response.m_response_code = 200;
response.m_response_comment = "OK";
response.m_body.clear();
return m_config.m_phandler->handle_http_request(query_info, response, this->m_conn_context);
}
virtual bool thread_init()
{
return m_config.m_phandler->init_server_thread();
}
virtual bool thread_deinit()
{
return m_config.m_phandler->deinit_server_thread();
}
void handle_qued_callback()
{}
bool after_init_connection()
{
return true;
}
private:
//simple_http_connection_handler::config_type m_stub_config;
config_type& m_config;
http_server_auth m_auth;
};
}
}
}
#include "http_protocol_handler.inl"
#endif //_HTTP_SERVER_H_
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