kopia lustrzana https://github.com/ogre/habboy
277 wiersze
8.6 KiB
C++
277 wiersze
8.6 KiB
C++
#include "http_session.h"
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#include "websocket_session.h"
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#include <iostream>
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//------------------------------------------------------------------------------
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// Return a reasonable mime type based on the extension of a file.
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/*
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boost::beast::string_view
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mime_type(boost::beast::string_view path)
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{
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using boost::beast::iequals;
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auto const ext = [&path]
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{
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auto const pos = path.rfind(".");
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if(pos == boost::beast::string_view::npos)
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return boost::beast::string_view{};
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return path.substr(pos);
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}();
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if(iequals(ext, ".htm")) return "text/html";
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if(iequals(ext, ".html")) return "text/html";
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if(iequals(ext, ".php")) return "text/html";
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if(iequals(ext, ".css")) return "text/css";
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if(iequals(ext, ".txt")) return "text/plain";
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if(iequals(ext, ".js")) return "application/javascript";
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if(iequals(ext, ".json")) return "application/json";
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if(iequals(ext, ".xml")) return "application/xml";
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if(iequals(ext, ".swf")) return "application/x-shockwave-flash";
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if(iequals(ext, ".flv")) return "video/x-flv";
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if(iequals(ext, ".png")) return "image/png";
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if(iequals(ext, ".jpe")) return "image/jpeg";
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if(iequals(ext, ".jpeg")) return "image/jpeg";
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if(iequals(ext, ".jpg")) return "image/jpeg";
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if(iequals(ext, ".gif")) return "image/gif";
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if(iequals(ext, ".bmp")) return "image/bmp";
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if(iequals(ext, ".ico")) return "image/vnd.microsoft.icon";
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if(iequals(ext, ".tiff")) return "image/tiff";
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if(iequals(ext, ".tif")) return "image/tiff";
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if(iequals(ext, ".svg")) return "image/svg+xml";
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if(iequals(ext, ".svgz")) return "image/svg+xml";
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return "application/text";
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}
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*/
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// Append an HTTP rel-path to a local filesystem path.
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// The returned path is normalized for the platform.
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/*
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std::string
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path_cat(
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boost::beast::string_view base,
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boost::beast::string_view path)
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{
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if(base.empty())
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return path.to_string();
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std::string result = base.to_string();
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#if BOOST_MSVC
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char constexpr path_separator = '\\';
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if(result.back() == path_separator)
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result.resize(result.size() - 1);
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result.append(path.data(), path.size());
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for(auto& c : result)
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if(c == '/')
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c = path_separator;
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#else
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char constexpr path_separator = '/';
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if(result.back() == path_separator)
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result.resize(result.size() - 1);
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result.append(path.data(), path.size());
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#endif
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return result;
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}
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*/
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// This function produces an HTTP response for the given
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// request. The type of the response object depends on the
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// contents of the request, so the interface requires the
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// caller to pass a generic lambda for receiving the response.
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/*
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template<
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class Body, class Allocator,
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class Send>
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void
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handle_request(
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boost::beast::string_view doc_root,
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http::request<Body, http::basic_fields<Allocator>>&& req,
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Send&& send)
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{
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// Returns a bad request response
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auto const bad_request =
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[&req](boost::beast::string_view why)
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{
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http::response<http::string_body> res{http::status::bad_request, req.version()};
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res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
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res.set(http::field::content_type, "text/html");
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res.keep_alive(req.keep_alive());
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res.body() = why.to_string();
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res.prepare_payload();
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return res;
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};
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// Returns a not found response
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auto const not_found =
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[&req](boost::beast::string_view target)
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{
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http::response<http::string_body> res{http::status::not_found, req.version()};
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res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
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res.set(http::field::content_type, "text/html");
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res.keep_alive(req.keep_alive());
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res.body() = "The resource '" + target.to_string() + "' was not found.";
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res.prepare_payload();
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return res;
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};
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// Returns a server error response
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auto const server_error =
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[&req](boost::beast::string_view what)
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{
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http::response<http::string_body> res{http::status::internal_server_error, req.version()};
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res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
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res.set(http::field::content_type, "text/html");
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res.keep_alive(req.keep_alive());
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res.body() = "An error occurred: '" + what.to_string() + "'";
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res.prepare_payload();
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return res;
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};
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// Make sure we can handle the method
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if( req.method() != http::verb::get &&
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req.method() != http::verb::head)
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return send(bad_request("Unknown HTTP-method"));
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// Request path must be absolute and not contain "..".
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if( req.target().empty() ||
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req.target()[0] != '/' ||
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req.target().find("..") != boost::beast::string_view::npos)
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return send(bad_request("Illegal request-target"));
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// Build the path to the requested file
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std::string path = path_cat(doc_root, req.target());
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if(req.target().back() == '/')
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path.append("index.html");
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// Attempt to open the file
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boost::beast::error_code ec;
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http::file_body::value_type body;
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body.open(path.c_str(), boost::beast::file_mode::scan, ec);
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// Handle the case where the file doesn't exist
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if(ec == boost::system::errc::no_such_file_or_directory)
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return send(not_found(req.target()));
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// Handle an unknown error
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if(ec)
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return send(server_error(ec.message()));
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// Cache the size since we need it after the move
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auto const size = body.size();
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// Respond to HEAD request
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if(req.method() == http::verb::head)
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{
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http::response<http::empty_body> res{http::status::ok, req.version()};
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res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
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res.set(http::field::content_type, mime_type(path));
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res.content_length(size);
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res.keep_alive(req.keep_alive());
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return send(std::move(res));
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}
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// Respond to GET request
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http::response<http::file_body> res{
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std::piecewise_construct,
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std::make_tuple(std::move(body)),
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std::make_tuple(http::status::ok, req.version())};
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res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
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res.set(http::field::content_type, mime_type(path));
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res.content_length(size);
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res.keep_alive(req.keep_alive());
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return send(std::move(res));
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}
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*/
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//------------------------------------------------------------------------------
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namespace habboy_hw_iface
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{
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http_session::http_session(
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tcp::socket socket,
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std::shared_ptr<habboy_hw_iface::WebsocketServer> p_ws_server)
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: socket_(std::move(socket)),
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p_ws_server_(p_ws_server)
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{
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}
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void http_session::run()
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{
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boost::beast::http::async_read(socket_, buffer_, req_,
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[self = shared_from_this()]
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(error_code ec, std::size_t bytes)
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{
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self->on_read(ec, bytes);
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});
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}
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void http_session::fail(error_code ec, char const* what)
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{
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if(ec == net::error::operation_aborted)
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return;
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std::cerr << what << ": " << ec.message() << "\n";
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}
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void http_session::on_read(error_code ec, std::size_t)
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{
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if(ec == boost::beast::http::error::end_of_stream)
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{
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socket_.shutdown(tcp::socket::shutdown_send, ec);
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return;
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}
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if(ec)
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return fail(ec, "read");
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if(boost::beast::websocket::is_upgrade(req_))
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{
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std::make_shared<websocket_session>(
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std::move(socket_), p_ws_server_
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)->run(std::move(req_));
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return;
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}
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// Send the response
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/*
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handle_request(state_->doc_root(), std::move(req_),
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[this](auto&& response)
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{
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// The lifetime of the message has to extend
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// for the duration of the async operation so
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// we use a shared_ptr to manage it.
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using response_type = typename std::decay<decltype(response)>::type;
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auto sp = std::make_shared<response_type>(std::forward<decltype(response)>(response));
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// Write the response
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auto self = shared_from_this();
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http::async_write(this->socket_, *sp,
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[self, sp](
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error_code ec, std::size_t bytes)
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{
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self->on_write(ec, bytes, sp->need_eof());
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});
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});
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*/
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}
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void http_session::on_write(error_code ec, std::size_t, bool close)
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{
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if(ec)
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return fail(ec, "write");
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if(close)
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{
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socket_.shutdown(tcp::socket::shutdown_send, ec);
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return;
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}
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// Clear contents of the request message,
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// otherwise the read behavior is undefined.
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req_ = {};
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boost::beast::http::async_read(socket_, buffer_, req_,
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[self = shared_from_this()]
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(error_code ec, std::size_t bytes)
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{
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self->on_read(ec, bytes);
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});
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}
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} //ns
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