191 lines
7.4 KiB
C++
191 lines
7.4 KiB
C++
/*
|
|
* nghttp2 - HTTP/2 C Library
|
|
*
|
|
* Copyright (c) 2021 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 SHRPX_HTTP3_UPSTREAM_H
|
|
#define SHRPX_HTTP3_UPSTREAM_H
|
|
|
|
#include "shrpx.h"
|
|
|
|
#include <ngtcp2/ngtcp2.h>
|
|
#include <nghttp3/nghttp3.h>
|
|
|
|
#include "shrpx_upstream.h"
|
|
#include "shrpx_downstream_queue.h"
|
|
#include "quic.h"
|
|
#include "network.h"
|
|
|
|
using namespace nghttp2;
|
|
|
|
namespace shrpx {
|
|
|
|
struct UpstreamAddr;
|
|
|
|
class Http3Upstream : public Upstream {
|
|
public:
|
|
Http3Upstream(ClientHandler *handler);
|
|
virtual ~Http3Upstream();
|
|
|
|
virtual int on_read();
|
|
virtual int on_write();
|
|
virtual int on_timeout(Downstream *downstream);
|
|
virtual int on_downstream_abort_request(Downstream *downstream,
|
|
unsigned int status_code);
|
|
virtual int
|
|
on_downstream_abort_request_with_https_redirect(Downstream *downstream);
|
|
virtual int downstream_read(DownstreamConnection *dconn);
|
|
virtual int downstream_write(DownstreamConnection *dconn);
|
|
virtual int downstream_eof(DownstreamConnection *dconn);
|
|
virtual int downstream_error(DownstreamConnection *dconn, int events);
|
|
virtual ClientHandler *get_client_handler() const;
|
|
|
|
virtual int on_downstream_header_complete(Downstream *downstream);
|
|
virtual int on_downstream_body(Downstream *downstream, const uint8_t *data,
|
|
size_t len, bool flush);
|
|
virtual int on_downstream_body_complete(Downstream *downstream);
|
|
|
|
virtual void on_handler_delete();
|
|
virtual int on_downstream_reset(Downstream *downstream, bool no_retry);
|
|
|
|
virtual void pause_read(IOCtrlReason reason);
|
|
virtual int resume_read(IOCtrlReason reason, Downstream *downstream,
|
|
size_t consumed);
|
|
virtual int send_reply(Downstream *downstream, const uint8_t *body,
|
|
size_t bodylen);
|
|
|
|
virtual int initiate_push(Downstream *downstream, const StringRef &uri);
|
|
|
|
virtual int response_riovec(struct iovec *iov, int iovcnt) const;
|
|
virtual void response_drain(size_t n);
|
|
virtual bool response_empty() const;
|
|
|
|
virtual Downstream *on_downstream_push_promise(Downstream *downstream,
|
|
int32_t promised_stream_id);
|
|
virtual int
|
|
on_downstream_push_promise_complete(Downstream *downstream,
|
|
Downstream *promised_downstream);
|
|
virtual bool push_enabled() const;
|
|
virtual void cancel_premature_downstream(Downstream *promised_downstream);
|
|
|
|
int init(const UpstreamAddr *faddr, const Address &remote_addr,
|
|
const Address &local_addr, const ngtcp2_pkt_hd &initial_hd,
|
|
const ngtcp2_cid *odcid, const uint8_t *token, size_t tokenlen);
|
|
|
|
int on_read(const UpstreamAddr *faddr, const Address &remote_addr,
|
|
const Address &local_addr, const ngtcp2_pkt_info &pi,
|
|
const uint8_t *data, size_t datalen);
|
|
|
|
int write_streams();
|
|
|
|
int handle_error();
|
|
|
|
int handle_expiry();
|
|
void reset_timer();
|
|
|
|
int setup_httpconn();
|
|
void add_pending_downstream(std::unique_ptr<Downstream> downstream);
|
|
int recv_stream_data(uint32_t flags, int64_t stream_id, const uint8_t *data,
|
|
size_t datalen);
|
|
int acked_stream_data_offset(int64_t stream_id, uint64_t datalen);
|
|
int extend_max_stream_data(int64_t stream_id);
|
|
void extend_max_remote_streams_bidi(uint64_t max_streams);
|
|
int error_reply(Downstream *downstream, unsigned int status_code);
|
|
void http_begin_request_headers(int64_t stream_id);
|
|
int http_recv_request_header(Downstream *downstream, int32_t token,
|
|
nghttp3_rcbuf *name, nghttp3_rcbuf *value,
|
|
uint8_t flags, bool trailer);
|
|
int http_end_request_headers(Downstream *downstream, int fin);
|
|
int http_end_stream(Downstream *downstream);
|
|
void start_downstream(Downstream *downstream);
|
|
void initiate_downstream(Downstream *downstream);
|
|
int shutdown_stream(Downstream *downstream, uint64_t app_error_code);
|
|
int shutdown_stream_read(int64_t stream_id, uint64_t app_error_code);
|
|
int http_stream_close(Downstream *downstream, uint64_t app_error_code);
|
|
void consume(int64_t stream_id, size_t nconsumed);
|
|
void remove_downstream(Downstream *downstream);
|
|
int stream_close(int64_t stream_id, uint64_t app_error_code);
|
|
void log_response_headers(Downstream *downstream,
|
|
const std::vector<nghttp3_nv> &nva) const;
|
|
int http_acked_stream_data(Downstream *downstream, uint64_t datalen);
|
|
int http_shutdown_stream_read(int64_t stream_id);
|
|
int http_reset_stream(int64_t stream_id, uint64_t app_error_code);
|
|
int http_stop_sending(int64_t stream_id, uint64_t app_error_code);
|
|
int http_recv_data(Downstream *downstream, const uint8_t *data,
|
|
size_t datalen);
|
|
int handshake_completed();
|
|
int check_shutdown();
|
|
int start_graceful_shutdown();
|
|
int submit_goaway();
|
|
int send_packet(const UpstreamAddr *faddr, const sockaddr *remote_sa,
|
|
size_t remote_salen, const sockaddr *local_sa,
|
|
size_t local_salen, const ngtcp2_pkt_info &pi,
|
|
const uint8_t *data, size_t datalen, size_t gso_size);
|
|
|
|
void qlog_write(const void *data, size_t datalen, bool fin);
|
|
int open_qlog_file(const StringRef &dir, const ngtcp2_cid &scid) const;
|
|
|
|
void on_send_blocked(const UpstreamAddr *faddr,
|
|
const ngtcp2_addr &remote_addr,
|
|
const ngtcp2_addr &local_addr, const ngtcp2_pkt_info &pi,
|
|
const uint8_t *data, size_t datalen, size_t gso_size);
|
|
int send_blocked_packet();
|
|
void signal_write_upstream_addr(const UpstreamAddr *faddr);
|
|
|
|
ngtcp2_conn *get_conn() const;
|
|
|
|
private:
|
|
ClientHandler *handler_;
|
|
ev_timer timer_;
|
|
ev_timer shutdown_timer_;
|
|
ev_prepare prep_;
|
|
int qlog_fd_;
|
|
ngtcp2_cid hashed_scid_;
|
|
ngtcp2_conn *conn_;
|
|
ngtcp2_connection_close_error last_error_;
|
|
nghttp3_conn *httpconn_;
|
|
DownstreamQueue downstream_queue_;
|
|
bool retry_close_;
|
|
std::vector<uint8_t> conn_close_;
|
|
|
|
struct {
|
|
bool send_blocked;
|
|
size_t num_blocked;
|
|
size_t num_blocked_sent;
|
|
// blocked field is effective only when send_blocked is true.
|
|
struct {
|
|
const UpstreamAddr *faddr;
|
|
Address local_addr;
|
|
Address remote_addr;
|
|
ngtcp2_pkt_info pi;
|
|
const uint8_t *data;
|
|
size_t datalen;
|
|
size_t gso_size;
|
|
} blocked[2];
|
|
std::unique_ptr<uint8_t[]> data;
|
|
} tx_;
|
|
};
|
|
|
|
} // namespace shrpx
|
|
|
|
#endif // SHRPX_HTTP3_UPSTREAM_H
|