Branch data Line data Source code
1 : : // Copyright (c) 2015-present The Bitcoin Core developers
2 : : // Distributed under the MIT software license, see the accompanying
3 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 : :
5 : : #ifndef BITCOIN_HTTPSERVER_H
6 : : #define BITCOIN_HTTPSERVER_H
7 : :
8 : : #include <atomic>
9 : : #include <deque>
10 : : #include <functional>
11 : : #include <memory>
12 : : #include <optional>
13 : : #include <span>
14 : : #include <stdexcept>
15 : : #include <string>
16 : : #include <vector>
17 : :
18 : : #include <netaddress.h>
19 : : #include <rpc/protocol.h>
20 : : #include <util/byte_units.h>
21 : : #include <util/expected.h>
22 : : #include <util/sock.h>
23 : : #include <util/strencodings.h>
24 : : #include <util/string.h>
25 : : #include <util/threadinterrupt.h>
26 : : #include <util/time.h>
27 : :
28 : : namespace util {
29 : : class SignalInterrupt;
30 : : } // namespace util
31 : :
32 : : /**
33 : : * The default value for `-rpcthreads`. This number of threads will be created at startup.
34 : : */
35 : : static const int DEFAULT_HTTP_THREADS=16;
36 : :
37 : : /**
38 : : * The default value for `-rpcworkqueue`. This is the maximum depth of the work queue,
39 : : * we don't allocate this number of work queue items upfront.
40 : : */
41 : : static const int DEFAULT_HTTP_WORKQUEUE=64;
42 : :
43 : : static const int DEFAULT_HTTP_SERVER_TIMEOUT=30;
44 : :
45 : : enum class HTTPRequestMethod {
46 : : UNKNOWN,
47 : : GET,
48 : : POST,
49 : : HEAD,
50 : : PUT
51 : : };
52 : :
53 : : namespace http_bitcoin {
54 : : class HTTPRequest;
55 : : }
56 : : /** Handler for requests to a certain HTTP path */
57 : : using HTTPRequestHandler = std::function<void(http_bitcoin::HTTPRequest* req, const std::string&)>;
58 : :
59 : : /** Register handler for prefix.
60 : : * If multiple handlers match a prefix, the first-registered one will
61 : : * be invoked.
62 : : */
63 : : void RegisterHTTPHandler(const std::string &prefix, bool exactMatch, const HTTPRequestHandler &handler);
64 : : /** Unregister handler for prefix */
65 : : void UnregisterHTTPHandler(const std::string &prefix, bool exactMatch);
66 : :
67 : : namespace http_bitcoin {
68 : : using util::LineReader;
69 : :
70 : : //! Shortest valid request line, used by libevent in evhttp_parse_request_line()
71 : : constexpr size_t MIN_REQUEST_LINE_LENGTH = std::string_view("GET / HTTP/1.0").size();
72 : :
73 : : //! Maximum size of each headers line in an HTTP request,
74 : : //! also the maximum size of all headers total.
75 : : //! See https://github.com/bitcoin/bitcoin/pull/6859
76 : : //! And libevent http.c evhttp_parse_headers_()
77 : : constexpr size_t MAX_HEADERS_SIZE{8192};
78 : :
79 : : //! Maximum size of an HTTP request body
80 : : constexpr uint64_t MAX_BODY_SIZE{32_MiB};
81 : :
82 : : //! Thrown when a request body exceeds MAX_BODY_SIZE (or *will* exceed, in chunked transfer)
83 : : //! so the server can reply with more specific code 413 (content too large) vs general 400 (bad request)
84 : : struct ContentTooLargeError : std::runtime_error {
85 [ + - + - ]: 2 : using std::runtime_error::runtime_error;
86 : : };
87 : :
88 [ + - ][ + - : 13 : class HTTPHeaders
- - - - -
- - - - -
- - - - ]
89 : : {
90 : : public:
91 : : /**
92 : : * @param[in] key The field-name of the header to search for
93 : : * @returns The value of the first header that matches the provided key
94 : : * nullopt if key is not found
95 : : */
96 : : std::optional<std::string> FindFirst(std::string_view key) const;
97 : : /**
98 : : * @param[in] key The field-name of the header to search for
99 : : * @returns Views into all values matching the provided key (valid while this object is alive)
100 : : */
101 : : std::vector<std::string_view> FindAll(std::string_view key) const;
102 : : void Write(std::string&& key, std::string&& value);
103 : : /**
104 : : * @param[in] key The field-name of the header to search for and delete
105 : : */
106 : : void RemoveAll(std::string_view key);
107 : : /**
108 : : * @returns false if LineReader hits the end of the buffer before reading an
109 : : * \n, meaning that we are still waiting on more data from the client.
110 : : * true after reading an entire HTTP headers section, terminated
111 : : * by an empty line and \n.
112 : : * @throws on exceeded read limit and on bad headers syntax (e.g. no ":" in a line)
113 : : */
114 : : bool Read(util::LineReader& reader);
115 : : std::string Stringify() const;
116 : :
117 : : private:
118 : : /**
119 : : * Headers can have duplicate field names, so we use a vector of key-value pairs instead of a map.
120 : : * https://httpwg.org/specs/rfc9110.html#rfc.section.5.2
121 : : */
122 : : std::vector<std::pair<std::string, std::string>> m_headers;
123 : : };
124 : :
125 [ + - + - : 29 : struct HTTPVersion {
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - -
+ - + + -
+ - + - +
- + - + -
+ - ]
126 : : /**
127 : : * Default HTTP protocol version 1.1 is used by error responses
128 : : * when a request is unreadable.
129 : : */
130 : : /// @{
131 : : uint8_t major{1};
132 : : uint8_t minor{1};
133 : : /// @}
134 : : };
135 : :
136 : :
137 : 2 : class HTTPResponse
138 : : {
139 : : public:
140 : : HTTPVersion m_version;
141 : :
142 : : HTTPStatusCode m_status{HTTP_INTERNAL_SERVER_ERROR};
143 : : HTTPHeaders m_headers;
144 : :
145 : : std::string StringifyHeaders() const;
146 : : };
147 : :
148 : : class HTTPRemoteClient;
149 : :
150 : : class HTTPRequest
151 : : {
152 : : public:
153 : : HTTPRequestMethod m_method;
154 : : std::string m_target;
155 : : HTTPVersion m_version;
156 : : HTTPHeaders m_headers;
157 : : std::string m_body;
158 : :
159 : : //! Pointer to the client that made the request so we know who to respond to.
160 : : std::shared_ptr<HTTPRemoteClient> m_client;
161 : :
162 : : //! Response headers may be set in advance before response body is known
163 : : HTTPHeaders m_response_headers;
164 : :
165 : 1 : explicit HTTPRequest(std::shared_ptr<HTTPRemoteClient> client) : m_client{std::move(client)} {}
166 : : //! Construct with a null client for unit tests
167 [ + - + - : 28 : explicit HTTPRequest() : m_client{} {}
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - -
+ - + + -
+ - + - +
- + - + -
+ - ]
168 : :
169 : : /**
170 : : * Methods that attempt to parse HTTP request fields line-by-line
171 : : * from a receive buffer.
172 : : * @param[in] reader A LineReader object constructed over a span of data.
173 : : * @returns true If the request field was parsed.
174 : : * false If there was not enough data in the buffer to complete the field.
175 : : * @throws std::runtime_error if data is invalid.
176 : : */
177 : : /// @{
178 : : bool LoadControlData(LineReader& reader);
179 : : bool LoadHeaders(LineReader& reader);
180 : : bool LoadBody(LineReader& reader);
181 : : /// @}
182 : :
183 : : void WriteReply(HTTPStatusCode status, std::span<const std::byte> reply_body = {});
184 : 1 : void WriteReply(HTTPStatusCode status, std::string_view reply_body_view)
185 : : {
186 : 1 : WriteReply(status, std::as_bytes(std::span{reply_body_view}));
187 : 1 : }
188 : :
189 : : // These methods reimplement the API from http_libevent::HTTPRequest
190 : : // for downstream JSONRPC and REST modules.
191 [ # # # # : 2 : std::string GetURI() const { return m_target; }
# # # # #
# # # ]
[ # # ]
[ - + + - ]
192 : : CService GetPeer() const;
193 [ + - ]: 1 : HTTPRequestMethod GetRequestMethod() const { return m_method; }
194 : : std::optional<std::string> GetQueryParameter(std::string_view key) const;
195 : : std::pair<bool, std::string> GetHeader(std::string_view hdr) const;
196 [ # # # # ]: 0 : std::string ReadBody() const { return m_body; }
197 : : void WriteHeader(std::string&& hdr, std::string&& value);
198 : : };
199 : :
200 : : class HTTPServer
201 : : {
202 : : public:
203 : : /**
204 : : * Each connection is assigned an unique id of this type.
205 : : */
206 : : using Id = uint64_t;
207 : :
208 : 1 : explicit HTTPServer(std::function<void(std::unique_ptr<HTTPRequest>&&)> func)
209 [ + - ]: 1 : : m_request_dispatcher{std::move(func)} {}
210 : :
211 : 1 : virtual ~HTTPServer()
212 : 1 : {
213 : 1 : Assume(!m_thread_socket_handler.joinable()); // Missing call to JoinSocketsThreads()
214 : 1 : Assume(m_connected.empty()); // Missing call to DisconnectClients(), or disconnect flags not set
215 : 1 : Assume(m_listen.empty()); // Missing call to StopListening()
216 : 1 : }
217 : :
218 : : /**
219 : : * Bind to a new address:port, start listening and add the listen socket to `m_listen`.
220 : : * @param[in] to Where to bind.
221 : : * @returns {} or the reason for failure.
222 : : */
223 : : util::Expected<void, std::string> BindAndStartListening(const CService& to);
224 : :
225 : : /**
226 : : * Stop listening by closing all listening sockets.
227 : : */
228 : : void StopListening();
229 : :
230 : : /**
231 : : * Get the number of sockets the server is bound to and listening on
232 : : */
233 [ - + + - : 2 : size_t GetListeningSocketCount() const { return m_listen.size(); }
- + + - ]
234 : :
235 : : /**
236 : : * Get the number of HTTPRemoteClients we are connected to
237 : : */
238 [ # # ][ + - : 9 : size_t GetConnectionsCount() const { return m_connected_size.load(std::memory_order_acquire); }
+ + + + ]
239 : :
240 : : /**
241 : : * Start the necessary threads for sockets IO.
242 : : */
243 : : void StartSocketsThreads();
244 : :
245 : : /**
246 : : * Join (wait for) the threads started by `StartSocketsThreads()` to exit.
247 : : */
248 : : void JoinSocketsThreads();
249 : :
250 : : /**
251 : : * Stop network activity
252 : : */
253 [ + - ]: 1 : void InterruptNet() { m_interrupt_net(); }
254 : :
255 : : /**
256 : : * Start disconnecting clients when possible in the I/O loop
257 : : */
258 : 0 : void DisconnectAllClients() { m_disconnect_all_clients = true; }
259 : :
260 : : /**
261 : : * Update the request handler method.
262 : : * Used for shutdown to reject new requests.
263 : : */
264 : 0 : void SetRequestHandler(std::function<void(std::unique_ptr<HTTPRequest>&&)> func)
265 : : EXCLUSIVE_LOCKS_REQUIRED(!m_request_dispatcher_mutex)
266 : : {
267 [ # # # # ]: 0 : WITH_LOCK(m_request_dispatcher_mutex,
268 : : m_request_dispatcher = std::move(func));
269 : 0 : }
270 : :
271 : : /**
272 : : * Stop accepting new connections in the I/O loop.
273 : : * Must be called first in StopHTTPServer() before DisconnectAllClients().
274 : : * A connection accepted after the "wait for 0 connections" loop exits would
275 : : * remain in m_connected when the destructor is called.
276 : : */
277 : 0 : void StopAccepting() { m_stop_accepting = true; }
278 : :
279 : : /**
280 : : * Set the idle client timeout (-rpcservertimeout)
281 : : */
282 : 0 : void SetServerTimeout(std::chrono::seconds seconds) { m_rpcservertimeout = seconds; }
283 : :
284 : : /**
285 : : * Force-remove all remaining clients from m_connected without waiting for
286 : : * graceful disconnection. Must only be called after JoinSocketsThreads().
287 : : */
288 : : void ClearConnectedClients();
289 : :
290 : : private:
291 : : /**
292 : : * List of listening sockets.
293 : : */
294 : : std::vector<std::shared_ptr<Sock>> m_listen;
295 : :
296 : : /**
297 : : * The id to assign to the next created connection.
298 : : */
299 : : std::atomic<Id> m_next_id{0};
300 : :
301 : : /**
302 : : * List of HTTPRemoteClients with connected sockets.
303 : : * Connections will only be added and removed in the I/O thread, but
304 : : * shared pointers may be passed to worker threads to handle requests
305 : : * and send replies.
306 : : */
307 : : std::vector<std::shared_ptr<HTTPRemoteClient>> m_connected;
308 : :
309 : : /**
310 : : * Flag used during shutdown to stop accepting new connections.
311 : : * Set by main thread and read by the I/O thread.
312 : : */
313 : : std::atomic_bool m_stop_accepting{false};
314 : :
315 : : /**
316 : : * Flag used during shutdown.
317 : : * Overrides HTTPRemoteClient flags m_keep_alive and m_connection_busy.
318 : : * Set by main thread and read by the I/O thread.
319 : : */
320 : : std::atomic_bool m_disconnect_all_clients{false};
321 : :
322 : : /**
323 : : * The number of connected sockets.
324 : : * Updated from the I/O thread but safely readable from
325 : : * the main thread without locks.
326 : : */
327 : : std::atomic<size_t> m_connected_size{0};
328 : :
329 : : /**
330 : : * Info about which socket has which event ready and a reverse map
331 : : * back to the HTTPRemoteClient that owns the socket.
332 : : */
333 : 8 : struct IOReadiness {
334 : : /**
335 : : * Map of socket -> socket events. For example:
336 : : * socket1 -> { requested = SEND|RECV, occurred = RECV }
337 : : * socket2 -> { requested = SEND, occurred = SEND }
338 : : */
339 : : Sock::EventsPerSock events_per_sock;
340 : :
341 : : /**
342 : : * Map of socket -> HTTPRemoteClient. For example:
343 : : * socket1 -> HTTPRemoteClient{ id=23 }
344 : : * socket2 -> HTTPRemoteClient{ id=56 }
345 : : */
346 : : std::unordered_map<Sock::EventsPerSock::key_type,
347 : : std::shared_ptr<HTTPRemoteClient>,
348 : : Sock::HashSharedPtrSock,
349 : : Sock::EqualSharedPtrSock>
350 : : httpclients_per_sock;
351 : : };
352 : :
353 : : /**
354 : : * This is signaled when network activity should cease.
355 : : */
356 : : CThreadInterrupt m_interrupt_net;
357 : :
358 : : /**
359 : : * Thread that sends to and receives from sockets and accepts connections.
360 : : * Executes the I/O loop of the server.
361 : : */
362 : : std::thread m_thread_socket_handler;
363 : :
364 : : /*
365 : : * What to do with HTTP requests once received, validated and parsed.
366 : : * Set in main thread by server start and interrupt but read in
367 : : * worker threads.
368 : : */
369 : : /// @{
370 : : mutable Mutex m_request_dispatcher_mutex;
371 : : std::function<void(std::unique_ptr<HTTPRequest>&&)> m_request_dispatcher GUARDED_BY(m_request_dispatcher_mutex);
372 : : /// @}
373 : :
374 : : /**
375 : : * Idle timeout after which clients are disconnected
376 : : */
377 : : std::chrono::seconds m_rpcservertimeout{DEFAULT_HTTP_SERVER_TIMEOUT};
378 : :
379 : : /**
380 : : * Accept a connection.
381 : : * @param[in] listen_sock Socket on which to accept the connection.
382 : : * @param[out] addr Address of the peer that was accepted.
383 : : * @return Newly created socket for the accepted connection.
384 : : */
385 : : std::unique_ptr<Sock> AcceptConnection(const Sock& listen_sock, CService& addr);
386 : :
387 : : /**
388 : : * Generate an id for a newly created connection.
389 : : */
390 : : Id GetNewId();
391 : :
392 : : /**
393 : : * After a new socket with a client has been created, configure its flags,
394 : : * make a new HTTPRemoteClient and Id and save its shared pointer.
395 : : * @param[in] sock The newly created socket.
396 : : * @param[in] addr Address of the new peer.
397 : : */
398 : : void NewSockAccepted(std::unique_ptr<Sock>&& sock, const CService& addr);
399 : :
400 : : /**
401 : : * Do the read/write for connected sockets that are ready for IO.
402 : : * @param[in] io_readiness Which sockets are ready and their corresponding HTTPRemoteClients.
403 : : */
404 : : void SocketHandlerConnected(const IOReadiness& io_readiness) const
405 : : EXCLUSIVE_LOCKS_REQUIRED(!m_request_dispatcher_mutex);
406 : :
407 : : /**
408 : : * Accept incoming connections, one from each read-ready listening socket.
409 : : * @param[in] events_per_sock Sockets that are ready for IO.
410 : : */
411 : : void SocketHandlerListening(const Sock::EventsPerSock& events_per_sock);
412 : :
413 : : /**
414 : : * Generate a collection of sockets to check for IO readiness.
415 : : * @return Sockets to check for readiness plus an aux map to find the
416 : : * corresponding HTTPRemoteClient given a socket.
417 : : */
418 : : IOReadiness GenerateWaitSockets() const;
419 : :
420 : : /**
421 : : * Check connected and listening sockets for IO readiness and process them accordingly.
422 : : * This is the main I/O loop of the server.
423 : : */
424 : : void ThreadSocketHandler() EXCLUSIVE_LOCKS_REQUIRED(!m_request_dispatcher_mutex);
425 : :
426 : : /**
427 : : * Try to read HTTPRequests from a client's receive buffer.
428 : : * Complete requests are dispatched, incomplete requests are
429 : : * left in the buffer to wait for more data. Some read errors
430 : : * will mark this client for disconnection.
431 : : * @param[in] client The HTTPRemoteClient to read requests from
432 : : */
433 : : void MaybeDispatchRequestsFromClient(const std::shared_ptr<HTTPRemoteClient>& client) const
434 : : EXCLUSIVE_LOCKS_REQUIRED(!m_request_dispatcher_mutex);
435 : :
436 : : /**
437 : : * Close underlying socket connections for flagged clients
438 : : * by removing their shared pointer from m_connected. If an HTTPRemoteClient
439 : : * is busy in a worker thread, its connection will be closed once that
440 : : * job is done and the HTTPRequest is out of scope.
441 : : */
442 : : void DisconnectClients();
443 : : };
444 : :
445 : : std::optional<std::string> GetQueryParameterFromUri(std::string_view uri, std::string_view key);
446 : :
447 : : class HTTPRemoteClient
448 : : {
449 : : public:
450 : : //! ID provided by HTTPServer upon connection and instantiation
451 : : const HTTPServer::Id m_id;
452 : :
453 : : //! Remote address of connected client
454 : : const CService m_addr;
455 : :
456 : : //! IP:port of connected client, cached for logging purposes
457 : : const std::string m_origin;
458 : :
459 : : /**
460 : : * In lieu of an intermediate transport class like p2p uses,
461 : : * we copy data from the socket buffer to the client object
462 : : * and attempt to read HTTP requests from here.
463 : : */
464 : : std::vector<std::byte> m_recv_buffer{};
465 : :
466 : : //! Requests from a client must be processed in the order in which
467 : : //! they were received, blocking on a per-client basis. We won't
468 : : //! process the next request in the queue if we are currently busy
469 : : //! handling a previous request.
470 : : std::deque<std::unique_ptr<HTTPRequest>> m_req_queue;
471 : :
472 : : //! Set to true by the I/O thread when a request is popped off
473 : : //! and passed to a worker thread, reset to false by the worker thread.
474 : : std::atomic_bool m_req_busy{false};
475 : :
476 : : /**
477 : : * Response data destined for this client.
478 : : * Written to by http worker threads, read and erased by HTTPServer I/O thread
479 : : */
480 : : /// @{
481 : : Mutex m_send_mutex;
482 : : std::vector<std::byte> m_send_buffer GUARDED_BY(m_send_mutex);
483 : : /// @}
484 : :
485 : : /**
486 : : * Set true by worker threads after writing a response to m_send_buffer.
487 : : * Set false by the HTTPServer I/O thread after flushing m_send_buffer.
488 : : * Checked in the HTTPServer I/O loop to avoid locking m_send_mutex if there's nothing to send.
489 : : */
490 : : std::atomic_bool m_send_ready{false};
491 : :
492 : : /**
493 : : * Mutex that serializes the Send() and Recv() calls on `m_sock`. Reading
494 : : * from the client occurs in the I/O thread but writing back to a client
495 : : * may occur in a worker thread.
496 : : */
497 : : Mutex m_sock_mutex;
498 : :
499 : : /**
500 : : * Underlying socket.
501 : : * `shared_ptr` (instead of `unique_ptr`) is used to avoid premature close of the
502 : : * underlying file descriptor by one thread while another thread is poll(2)-ing
503 : : * it for activity.
504 : : * @see https://github.com/bitcoin/bitcoin/issues/21744 for details.
505 : : */
506 : : std::shared_ptr<Sock> m_sock GUARDED_BY(m_sock_mutex);
507 : :
508 : : //! Initialized to true while server waits for first request from client.
509 : : //! Set to false after data is written to m_send_buffer and then that buffer is flushed to client.
510 : : //! Reset to true when we receive new request data from client.
511 : : //! Checked during DisconnectClients() and set by read/write operations
512 : : //! called in either the HTTPServer I/O loop or by a worker thread during an "optimistic send".
513 : : //! `m_connection_busy=true` can be overridden by `m_disconnect=true` (we disconnect).
514 : : std::atomic_bool m_connection_busy{true};
515 : :
516 : : //! Client has requested to keep the connection open after all requests have been responded to.
517 : : //! Set by (potentially multiple) worker threads and checked in the HTTPServer I/O loop.
518 : : //! `m_keep_alive=true` can be overridden `by HTTPServer.m_disconnect_all_clients` (we disconnect).
519 : : std::atomic_bool m_keep_alive{false};
520 : :
521 : : //! Flag this client for disconnection on next loop.
522 : : //! Either we have encountered a permanent error, or both sides of the socket are done
523 : : //! with the connection, e.g. our reply to a "Connection: close" request has been sent.
524 : : //! Might be set in a worker thread or in the I/O thread. When set to `true` we disconnect,
525 : : //! possibly overriding all other disconnect flags.
526 : : std::atomic_bool m_disconnect{false};
527 : :
528 : : //! Timestamp of last send or receive activity, used for -rpcservertimeout.
529 : : //! Due to optimistic sends it may be updated in either a worker thread or in the
530 : : //! I/O thread. It is checked in the I/O thread to disconnect idle clients.
531 : : std::atomic<SteadySeconds> m_idle_since;
532 : :
533 : 1 : explicit HTTPRemoteClient(HTTPServer::Id id, const CService& addr, std::unique_ptr<Sock> socket)
534 [ + - + - : 1 : : m_id(id), m_addr(addr), m_origin(addr.ToStringAddrPort()), m_sock{std::move(socket)}, m_idle_since{Now<SteadySeconds>()} {}
+ - ]
535 : :
536 : : // Disable copies (should only be used as shared pointers)
537 : : HTTPRemoteClient(const HTTPRemoteClient&) = delete;
538 : : HTTPRemoteClient& operator=(const HTTPRemoteClient&) = delete;
539 : :
540 : : /**
541 : : * Try to read an HTTP request from the receive buffer.
542 : : * @param[in] req A HTTPRequest to read into
543 : : * @returns true upon reading a complete request, otherwise false (may throw).
544 : : */
545 : : bool ReadRequest(HTTPRequest& req);
546 : :
547 : : /**
548 : : * Push data (if there is any) from client's m_send_buffer to the connected socket.
549 : : * @returns false if we are done with this client and HTTPServer can skip the next read operation from it.
550 : : */
551 : : bool MaybeSendBytesFromBuffer() EXCLUSIVE_LOCKS_REQUIRED(!m_send_mutex, !m_sock_mutex);
552 : : };
553 : :
554 : : /** Initialize HTTP server.
555 : : * Call this before RegisterHTTPHandler or EventBase().
556 : : */
557 : : bool InitHTTPServer();
558 : :
559 : : /** Start HTTP server.
560 : : * This is separate from InitHTTPServer to give users race-condition-free time
561 : : * to register their handlers between InitHTTPServer and StartHTTPServer.
562 : : */
563 : : void StartHTTPServer();
564 : :
565 : : /** Interrupt HTTP server threads */
566 : : void InterruptHTTPServer();
567 : :
568 : : /** Stop HTTP server */
569 : : void StopHTTPServer();
570 : : } // namespace http_bitcoin
571 : :
572 : : #endif // BITCOIN_HTTPSERVER_H
|
