243 lines
8.8 KiB
C++
243 lines
8.8 KiB
C++
/*
|
|
* nghttp2 - HTTP/2 C Library
|
|
*
|
|
* Copyright (c) 2015 Tatsuhiro Tsujikawa
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#ifndef ASIO_HTTP2_SERVER_H
|
|
#define ASIO_HTTP2_SERVER_H
|
|
|
|
#include <nghttp2/asio_http2.h>
|
|
|
|
namespace nghttp2 {
|
|
|
|
namespace asio_http2 {
|
|
|
|
namespace server {
|
|
|
|
class request_impl;
|
|
class response_impl;
|
|
|
|
class request {
|
|
public:
|
|
// Application must not call this directly.
|
|
request();
|
|
~request();
|
|
|
|
// Returns request header fields. The pusedo header fields, which
|
|
// start with colon (:), are exluced from this list.
|
|
const header_map &header() const;
|
|
|
|
// Returns method (e.g., GET).
|
|
const std::string &method() const;
|
|
|
|
// Returns request URI, split into components.
|
|
const uri_ref &uri() const;
|
|
|
|
// Sets callback which is invoked when chunk of request body is
|
|
// received.
|
|
void on_data(data_cb cb) const;
|
|
|
|
// Application must not call this directly.
|
|
request_impl &impl() const;
|
|
|
|
// Returns the remote endpoint of the request
|
|
const boost::asio::ip::tcp::endpoint &remote_endpoint() const;
|
|
|
|
private:
|
|
std::unique_ptr<request_impl> impl_;
|
|
};
|
|
|
|
class response {
|
|
public:
|
|
// Application must not call this directly.
|
|
response();
|
|
~response();
|
|
|
|
// Write response header using |status_code| (e.g., 200) and
|
|
// additional header fields in |h|.
|
|
void write_head(unsigned int status_code, header_map h = header_map{}) const;
|
|
|
|
// Sends |data| as request body. No further call of end() is
|
|
// allowed.
|
|
void end(std::string data = "") const;
|
|
|
|
// Sets callback as a generator of the response body. No further
|
|
// call of end() is allowed.
|
|
void end(generator_cb cb) const;
|
|
|
|
// Write trailer part. This must be called after setting both
|
|
// NGHTTP2_DATA_FLAG_EOF and NGHTTP2_DATA_FLAG_NO_END_STREAM set in
|
|
// *data_flag parameter in generator_cb passed to end() function.
|
|
void write_trailer(header_map h) const;
|
|
|
|
// Sets callback which is invoked when this request and response are
|
|
// finished. After the invocation of this callback, the application
|
|
// must not access request and response object.
|
|
void on_close(close_cb cb) const;
|
|
|
|
// Cancels this request and response with given error code.
|
|
void cancel(uint32_t error_code = NGHTTP2_INTERNAL_ERROR) const;
|
|
|
|
// Resumes deferred response.
|
|
void resume() const;
|
|
|
|
// Pushes resource denoted by |raw_path_query| using |method|. The
|
|
// additional header fields can be given in |h|. This function
|
|
// returns pointer to response object for promised stream, otherwise
|
|
// nullptr and error code is filled in |ec|. Be aware that the
|
|
// header field name given in |h| must be lower-cased.
|
|
const response *push(boost::system::error_code &ec, std::string method,
|
|
std::string raw_path_query,
|
|
header_map h = header_map{}) const;
|
|
|
|
// Returns status code.
|
|
unsigned int status_code() const;
|
|
|
|
// Returns boost::asio::io_service this response is running on.
|
|
boost::asio::io_service &io_service() const;
|
|
|
|
// Application must not call this directly.
|
|
response_impl &impl() const;
|
|
|
|
private:
|
|
std::unique_ptr<response_impl> impl_;
|
|
};
|
|
|
|
// This is so called request callback. Called every time request is
|
|
// received. The life time of |request| and |response| objects end
|
|
// when callback set by response::on_close() is called. After that,
|
|
// the application must not access to those objects.
|
|
typedef std::function<void(const request &, const response &)> request_cb;
|
|
|
|
class http2_impl;
|
|
|
|
class http2 {
|
|
public:
|
|
http2();
|
|
~http2();
|
|
|
|
http2(http2 &&other) noexcept;
|
|
http2 &operator=(http2 &&other) noexcept;
|
|
|
|
// Starts listening connection on given address and port and serves
|
|
// incoming requests in cleartext TCP connection. If |asynchronous|
|
|
// is false, this function blocks forever unless there is an error.
|
|
// If it is true, after server has started, this function returns
|
|
// immediately, and the caller should call join() to shutdown server
|
|
// gracefully.
|
|
boost::system::error_code listen_and_serve(boost::system::error_code &ec,
|
|
const std::string &address,
|
|
const std::string &port,
|
|
bool asynchronous = false);
|
|
|
|
// Starts listening connection on given address and port and serves
|
|
// incoming requests in SSL/TLS encrypted connection. For
|
|
// |asynchronous| parameter, see cleartext version
|
|
// |listen_and_serve|.
|
|
boost::system::error_code
|
|
listen_and_serve(boost::system::error_code &ec,
|
|
boost::asio::ssl::context &tls_context,
|
|
const std::string &address, const std::string &port,
|
|
bool asynchronous = false);
|
|
|
|
// Registers request handler |cb| with path pattern |pattern|. This
|
|
// function will fail and returns false if same pattern has been
|
|
// already registered or |pattern| is empty string. Otherwise
|
|
// returns true. The pattern match rule is the same as
|
|
// net/http/ServeMux in golang. Quoted from golang manual
|
|
// (http://golang.org/pkg/net/http/#ServeMux):
|
|
//
|
|
// Patterns name fixed, rooted paths, like "/favicon.ico", or
|
|
// rooted subtrees, like "/images/" (note the trailing
|
|
// slash). Longer patterns take precedence over shorter ones, so
|
|
// that if there are handlers registered for both "/images/" and
|
|
// "/images/thumbnails/", the latter handler will be called for
|
|
// paths beginning "/images/thumbnails/" and the former will
|
|
// receive requests for any other paths in the "/images/" subtree.
|
|
//
|
|
// Note that since a pattern ending in a slash names a rooted
|
|
// subtree, the pattern "/" matches all paths not matched by other
|
|
// registered patterns, not just the URL with Path == "/".
|
|
//
|
|
// Patterns may optionally begin with a host name, restricting
|
|
// matches to URLs on that host only. Host-specific patterns take
|
|
// precedence over general patterns, so that a handler might
|
|
// register for the two patterns "/codesearch" and
|
|
// "codesearch.google.com/" without also taking over requests for
|
|
// "http://www.google.com/".
|
|
//
|
|
// Just like ServeMux in golang, URL request path is sanitized and
|
|
// if they contains . or .. elements, they are redirected to an
|
|
// equivalent .- and ..-free URL.
|
|
bool handle(std::string pattern, request_cb cb);
|
|
|
|
// Sets number of native threads to handle incoming HTTP request.
|
|
// It defaults to 1.
|
|
void num_threads(size_t num_threads);
|
|
|
|
// Sets the maximum length to which the queue of pending
|
|
// connections.
|
|
void backlog(int backlog);
|
|
|
|
// Sets TLS handshake timeout, which defaults to 60 seconds.
|
|
void tls_handshake_timeout(const boost::posix_time::time_duration &t);
|
|
|
|
// Sets read timeout, which defaults to 60 seconds.
|
|
void read_timeout(const boost::posix_time::time_duration &t);
|
|
|
|
// Gracefully stop http2 server
|
|
void stop();
|
|
|
|
// Join on http2 server and wait for it to fully stop
|
|
void join();
|
|
|
|
// Get access to the io_service objects.
|
|
const std::vector<std::shared_ptr<boost::asio::io_service>> &
|
|
io_services() const;
|
|
|
|
private:
|
|
std::unique_ptr<http2_impl> impl_;
|
|
};
|
|
|
|
// Configures |tls_context| for server use. This function sets couple
|
|
// of OpenSSL options (disables SSLv2 and SSLv3 and compression) and
|
|
// enables ECDHE ciphers. NPN callback is also configured.
|
|
boost::system::error_code
|
|
configure_tls_context_easy(boost::system::error_code &ec,
|
|
boost::asio::ssl::context &tls_context);
|
|
|
|
// Returns request handler to do redirect to |uri| using
|
|
// |status_code|. The |uri| appears in "location" header field as is.
|
|
request_cb redirect_handler(int status_code, std::string uri);
|
|
|
|
// Returns request handler to reply with given |status_code| and HTML
|
|
// including message about status code.
|
|
request_cb status_handler(int status_code);
|
|
|
|
} // namespace server
|
|
|
|
} // namespace asio_http2
|
|
|
|
} // namespace nghttp2
|
|
|
|
#endif // ASIO_HTTP2_SERVER_H
|