nghttp2/src/HttpServer.h

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/*
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* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2013 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 HTTP_SERVER_H
#define HTTP_SERVER_H
#include "nghttp2_config.h"
#include <sys/types.h>
#include <cinttypes>
#include <cstdlib>
#include <string>
#include <vector>
#include <map>
#include <memory>
#include <openssl/ssl.h>
#include <ev.h>
#include <nghttp2/nghttp2.h>
#include "http2.h"
#include "buffer.h"
#include "template.h"
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#include "allocator.h"
namespace nghttp2 {
struct Config {
std::map<std::string, std::vector<std::string>> push;
std::map<std::string, std::string> mime_types;
Headers trailer;
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std::string trailer_names;
std::string htdocs;
std::string host;
std::string private_key_file;
std::string cert_file;
std::string dh_param_file;
std::string address;
std::string mime_types_file;
ev_tstamp stream_read_timeout;
ev_tstamp stream_write_timeout;
void *data_ptr;
size_t padding;
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size_t num_worker;
size_t max_concurrent_streams;
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ssize_t header_table_size;
ssize_t encoder_header_table_size;
int window_bits;
int connection_window_bits;
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uint16_t port;
bool verbose;
bool daemon;
bool verify_client;
bool no_tls;
bool error_gzip;
bool early_response;
bool hexdump;
bool echo_upload;
bool no_content_length;
Config();
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~Config();
};
class Http2Handler;
struct FileEntry {
FileEntry(std::string path, int64_t length, int64_t mtime, int fd,
const std::string *content_type, ev_tstamp last_valid,
bool stale = false)
: path(std::move(path)),
length(length),
mtime(mtime),
last_valid(last_valid),
content_type(content_type),
dlnext(nullptr),
dlprev(nullptr),
fd(fd),
usecount(1),
stale(stale) {}
std::string path;
std::multimap<std::string, std::unique_ptr<FileEntry>>::iterator it;
int64_t length;
int64_t mtime;
ev_tstamp last_valid;
const std::string *content_type;
FileEntry *dlnext, *dlprev;
int fd;
int usecount;
bool stale;
};
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struct RequestHeader {
StringRef method;
StringRef scheme;
StringRef authority;
StringRef host;
StringRef path;
StringRef ims;
StringRef expect;
struct {
nghttp2_rcbuf *method;
nghttp2_rcbuf *scheme;
nghttp2_rcbuf *authority;
nghttp2_rcbuf *host;
nghttp2_rcbuf *path;
nghttp2_rcbuf *ims;
nghttp2_rcbuf *expect;
} rcbuf;
};
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struct Stream {
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BlockAllocator balloc;
RequestHeader header;
Http2Handler *handler;
FileEntry *file_ent;
ev_timer rtimer;
ev_timer wtimer;
int64_t body_length;
int64_t body_offset;
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// Total amount of bytes (sum of name and value length) used in
// headers.
size_t header_buffer_size;
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int32_t stream_id;
bool echo_upload;
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Stream(Http2Handler *handler, int32_t stream_id);
~Stream();
};
class Sessions;
class Http2Handler {
public:
Http2Handler(Sessions *sessions, int fd, SSL *ssl, int64_t session_id);
~Http2Handler();
void remove_self();
void start_settings_timer();
int on_read();
int on_write();
int connection_made();
int verify_npn_result();
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int submit_file_response(const StringRef &status, Stream *stream,
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time_t last_modified, off_t file_length,
const std::string *content_type,
nghttp2_data_provider *data_prd);
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int submit_response(const StringRef &status, int32_t stream_id,
nghttp2_data_provider *data_prd);
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int submit_response(const StringRef &status, int32_t stream_id,
const HeaderRefs &headers,
nghttp2_data_provider *data_prd);
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int submit_non_final_response(const std::string &status, int32_t stream_id);
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int submit_push_promise(Stream *stream, const StringRef &push_path);
int submit_rst_stream(Stream *stream, uint32_t error_code);
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void add_stream(int32_t stream_id, std::unique_ptr<Stream> stream);
void remove_stream(int32_t stream_id);
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Stream *get_stream(int32_t stream_id);
int64_t session_id() const;
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Sessions *get_sessions() const;
const Config *get_config() const;
void remove_settings_timer();
void terminate_session(uint32_t error_code);
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int fill_wb();
int read_clear();
int write_clear();
int tls_handshake();
int read_tls();
int write_tls();
struct ev_loop *get_loop() const;
using WriteBuf = Buffer<64_k>;
WriteBuf *get_wb();
private:
ev_io wev_;
ev_io rev_;
ev_timer settings_timerev_;
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std::map<int32_t, std::unique_ptr<Stream>> id2stream_;
WriteBuf wb_;
std::function<int(Http2Handler &)> read_, write_;
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int64_t session_id_;
nghttp2_session *session_;
Sessions *sessions_;
SSL *ssl_;
const uint8_t *data_pending_;
size_t data_pendinglen_;
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int fd_;
};
struct StatusPage {
std::string status;
FileEntry file_ent;
};
class HttpServer {
public:
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HttpServer(const Config *config);
int listen();
int run();
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const Config *get_config() const;
const StatusPage *get_status_page(int status) const;
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private:
std::vector<StatusPage> status_pages_;
const Config *config_;
};
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ssize_t file_read_callback(nghttp2_session *session, int32_t stream_id,
uint8_t *buf, size_t length, uint32_t *data_flags,
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nghttp2_data_source *source, void *user_data);
} // namespace nghttp2
#endif // HTTP_SERVER_H