176 lines
6.8 KiB
C++
176 lines
6.8 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2021 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SHRPX_HTTP3_UPSTREAM_H
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#define SHRPX_HTTP3_UPSTREAM_H
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#include "shrpx.h"
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#include <ngtcp2/ngtcp2.h>
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#include <nghttp3/nghttp3.h>
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#include "shrpx_upstream.h"
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#include "shrpx_downstream_queue.h"
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#include "quic.h"
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#include "network.h"
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using namespace nghttp2;
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namespace shrpx {
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struct UpstreamAddr;
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class Http3Upstream : public Upstream {
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public:
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Http3Upstream(ClientHandler *handler);
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virtual ~Http3Upstream();
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virtual int on_read();
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virtual int on_write();
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virtual int on_timeout(Downstream *downstream);
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virtual int on_downstream_abort_request(Downstream *downstream,
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unsigned int status_code);
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virtual int
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on_downstream_abort_request_with_https_redirect(Downstream *downstream);
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virtual int downstream_read(DownstreamConnection *dconn);
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virtual int downstream_write(DownstreamConnection *dconn);
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virtual int downstream_eof(DownstreamConnection *dconn);
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virtual int downstream_error(DownstreamConnection *dconn, int events);
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virtual ClientHandler *get_client_handler() const;
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virtual int on_downstream_header_complete(Downstream *downstream);
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virtual int on_downstream_body(Downstream *downstream, const uint8_t *data,
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size_t len, bool flush);
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virtual int on_downstream_body_complete(Downstream *downstream);
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virtual void on_handler_delete();
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virtual int on_downstream_reset(Downstream *downstream, bool no_retry);
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virtual void pause_read(IOCtrlReason reason);
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virtual int resume_read(IOCtrlReason reason, Downstream *downstream,
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size_t consumed);
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virtual int send_reply(Downstream *downstream, const uint8_t *body,
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size_t bodylen);
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virtual int initiate_push(Downstream *downstream, const StringRef &uri);
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virtual int response_riovec(struct iovec *iov, int iovcnt) const;
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virtual void response_drain(size_t n);
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virtual bool response_empty() const;
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virtual Downstream *on_downstream_push_promise(Downstream *downstream,
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int32_t promised_stream_id);
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virtual int
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on_downstream_push_promise_complete(Downstream *downstream,
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Downstream *promised_downstream);
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virtual bool push_enabled() const;
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virtual void cancel_premature_downstream(Downstream *promised_downstream);
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int init(const UpstreamAddr *faddr, const Address &remote_addr,
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const Address &local_addr, const ngtcp2_pkt_hd &initial_hd,
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const ngtcp2_cid *odcid, const uint8_t *token, size_t tokenlen);
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int on_read(const UpstreamAddr *faddr, const Address &remote_addr,
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const Address &local_addr, const uint8_t *data, size_t datalen);
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int write_streams();
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int on_rx_secret(ngtcp2_crypto_level level, const uint8_t *secret,
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size_t secretlen);
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int on_tx_secret(ngtcp2_crypto_level level, const uint8_t *secret,
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size_t secretlen);
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int add_crypto_data(ngtcp2_crypto_level level, const uint8_t *data,
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size_t datalen);
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void set_tls_alert(uint8_t alert);
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int handle_error();
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int handle_expiry();
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void reset_idle_timer();
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void reset_timer();
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int setup_httpconn();
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void add_pending_downstream(std::unique_ptr<Downstream> downstream);
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int recv_stream_data(uint32_t flags, int64_t stream_id, const uint8_t *data,
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size_t datalen);
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int acked_stream_data_offset(int64_t stream_id, uint64_t datalen);
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int extend_max_stream_data(int64_t stream_id);
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void extend_max_remote_streams_bidi(uint64_t max_streams);
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int error_reply(Downstream *downstream, unsigned int status_code);
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void http_begin_request_headers(int64_t stream_id);
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int http_recv_request_header(Downstream *downstream, int32_t token,
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nghttp3_rcbuf *name, nghttp3_rcbuf *value,
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uint8_t flags);
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int http_end_request_headers(Downstream *downstream);
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int http_end_stream(Downstream *downstream);
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void start_downstream(Downstream *downstream);
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void initiate_downstream(Downstream *downstream);
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int shutdown_stream(Downstream *downstream, uint64_t app_error_code);
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int shutdown_stream_read(int64_t stream_id, uint64_t app_error_code);
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int redirect_to_https(Downstream *downstream);
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int http_stream_close(Downstream *downstream, uint64_t app_error_code);
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void consume(int64_t stream_id, size_t nconsumed);
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void remove_downstream(Downstream *downstream);
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int stream_close(int64_t stream_id, uint64_t app_error_code);
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void log_response_headers(Downstream *downstream,
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const std::vector<nghttp3_nv> &nva) const;
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int http_acked_stream_data(Downstream *downstream, uint64_t datalen);
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int http_shutdown_stream_read(int64_t stream_id);
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int http_reset_stream(int64_t stream_id, uint64_t app_error_code);
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int http_send_stop_sending(int64_t stream_id, uint64_t app_error_code);
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int http_recv_data(Downstream *downstream, const uint8_t *data,
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size_t datalen);
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int handshake_completed();
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int check_shutdown();
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int start_graceful_shutdown();
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int submit_goaway();
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void idle_close();
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void qlog_write(const void *data, size_t datalen, bool fin);
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int open_qlog_file(const StringRef &dir, const ngtcp2_cid &scid) const;
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private:
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ClientHandler *handler_;
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ev_timer timer_;
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ev_timer idle_timer_;
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ev_timer shutdown_timer_;
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ev_prepare prep_;
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int qlog_fd_;
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ngtcp2_cid hashed_scid_;
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ngtcp2_conn *conn_;
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quic::Error last_error_;
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uint8_t tls_alert_;
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nghttp3_conn *httpconn_;
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DownstreamQueue downstream_queue_;
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bool idle_close_;
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bool retry_close_;
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std::vector<uint8_t> conn_close_;
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};
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} // namespace shrpx
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#endif // SHRPX_HTTP3_UPSTREAM_H
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